USRE41536E1 - Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem - Google Patents
Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem Download PDFInfo
- Publication number
- USRE41536E1 USRE41536E1 US12/351,770 US35177009A USRE41536E US RE41536 E1 USRE41536 E1 US RE41536E1 US 35177009 A US35177009 A US 35177009A US RE41536 E USRE41536 E US RE41536E
- Authority
- US
- United States
- Prior art keywords
- nozzle
- injection molding
- nozzle body
- downstream
- molding apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 114
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 134
- 230000000717 retained effect Effects 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 125000006850 spacer group Chemical group 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 36
- 239000000155 melt Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 235000016936 Dendrocalamus strictus Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C2045/2717—Reconfigurable runner channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C2045/2762—Seals between nozzle and manifold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C2045/2796—Axially movable nozzles or nozzle tips
- B29C2045/2798—Axially movable nozzles or nozzle tips for compensating thermal expansion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/278—Nozzle tips
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention generally relates to an injection molding apparatus, comprising a manifold including a plurality of manifold channels and a plurality of nozzles. Each of the nozzles defines a nozzle channel in fluid communication with one of the manifold channels and including a plurality of nozzle bodies coupled in tandem by a removable and secure connection. The nozzle bodies include at least a upstream nozzle body and a downstream nozzle body. The upstream nozzle body has an upstream end adjacent said manifold channel, and the downstream nozzle body has a downstream end adjacent a mold plate. A removable nozzle tip is retained in a downstream end of each downstream nozzle body. The nozzles also include a plurality of heaters, wherein at least one heater is embedded into each nozzle body.
Description
This invention relates generally to an injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies arranged in tandem.
As is well known in the art, hot runner injection molding systems include a manifold for conveying pressurized melt from an inlet to one or more manifold outlets. An injection molding apparatus may also include a nozzle having two nozzles bodies. An example of an injection molding apparatus having two nozzle bodies in tandem can be found in U.S. Pat. No. 4,818,217 to Schmidt et al., which is incorporated herein by reference in its entirety. In particular, these nozzles are used in situations where it is desirable to have a longer nozzle from a conventional nozzle, or an extended nozzle. For example, an extended nozzle may be used when the injection of the plastic and the ejection of the product are mounted on the same side of the mold. Another environment where extended nozzles may be useful is when multiple split molds are used with a single hot runner manifold. This type of apparatus is generally described in U.S. Pat. No. 3,843,295 to Greenberg et al., which is incorporated herein by reference in its entirety.
Thermal expansion can cause tandem nozzles to expand, causing a downstream nozzle to push against an adjacent mold plate. One solution to this problem is to have one nozzle telescope inside another to form a sliding interface between the two nozzles. Thus, as the nozzles thermally expand, the interface between the nozzles can adapt to account for the thermal expansion. However, such an interface between the nozzles can cause leakage, particularly when thermal expansion causes shifting between the two nozzles.
Further, melt flowing through a nozzle channel provides best results when maintained at a consistent temperature. Thus, a heater is generally provided for a nozzle along its length to control the temperature of the melt.
The present invention is directed towards an injection molding apparatus having at least one elongated nozzle comprising at least two nozzle bodies connected in tandem. In particular, one aspect of the present invention is an injection molding apparatus comprising a hot runner manifold including at least two manifold channels and at least two nozzles. Each nozzle defines a nozzle channel in fluid communication with one of the manifold channels. At least one of the nozzles includes at least two nozzle bodies removably fastened in tandem, including at least an upstream nozzle body, having an upstream end adjacent said manifold channel, and a downstream nozzle body, having a downstream end adjacent a mold plate. A separate and removable nozzle tip is retained in a downstream end of the downstream nozzle body. The advantage of having a nozzle tip in a downstream end of a downstream nozzle body is that pressure created by thermal expansion affects the nozzle tip, which is more easily replaced than a downstream nozzle body. Further, the nozzle tip may provide relief from this pressure by having an extended portion which is slidably positioned adjacent the mold plate, such that the nozzle tip may slide with respect to the mold plate upon thermal expansion. The pressure may alternatively be relieved by having the upstream end of the upstream nozzle slidably positioned adjacent the manifold.
In another aspect of the present invention, each of the nozzle bodies includes at least one heater attached thereto. However, each nozzle tip does not have a separate heater connected directly thereto. The nozzle tip receives adequate heat from the heater attached to the adjacent nozzle body to maintain the temperature of the melt stream as it leaves the nozzle. A nozzle tip without a heater has the advantage of being easily replaced due to wear caused by thermal expansion, without the need for disconnecting electrical connections to a heater specifically for the nozzle tip.
In yet another aspect of the present invention, each of the nozzle bodies of a nozzle of an injection molding apparatus includes at least a first heater and a second heater, wherein at least the first heater is embedded into the nozzle body. Further, the second heater may either be embedded into the nozzle or embedded in a heating band coupled to the nozzle. Additional heaters provide for more even temperature control along a nozzle.
Further features and advantages of the invention, as well as the structure and operation of various embodiments of the invention, are described in detail below with reference to the accompanying drawings. It is noted that the invention is not limited to the specific embodiments described herein. Such embodiments are presented herein for illustrative purposes only. Additional embodiments will be apparent to persons skilled in the relevant art(s) based on the teachings contained herein.
The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the invention.
The present invention will be described with reference to the accompanying drawings.
The present invention is directed towards an injection molding apparatus having a nozzle with multiple nozzle bodies arranged in tandem. FIG. 1A shows an injection molding apparatus 10 of the present invention. The injection molding apparatus 10 comprises a manifold 12 having a manifold channel 14 extending therethrough. A manifold bushing 16 is located at an inlet of the manifold channel 14 to receive a melt stream of moldable material from a machine nozzle (not shown) and to deliver the melt stream to manifold outlets 18. A heating element (not shown) heats manifold 12 to maintain the melt stream at a desired temperature. The heating element of the manifold may be embedded into or attached to a surface of the manifold 12.
A removable nozzle tip 254 is inserted into a downstream end 253 of downstream nozzle body 227 and retained by a threaded connection 255 with the downstream end 253 of downstream nozzle body 227. Because each of the connections 248, 251 and 255 are secure connections, nozzle bodies may not shift or move with respect to one another to account for thermal expansion. Consequently, nozzle 224 lengthens and presses against the mold plate as nozzle bodies thermally expand. Thus, expansion pressure may result in contact between nozzle 224 and mold plate 234 and wearing at the point of contact therebetween. In the present invention, however, any wear is limited to the easily replaceable nozzle tip 254 which is in contact with mold plate 234, avoiding expensive and difficult replacement of the entire downstream nozzle body 227.
To maintain melt in nozzle channel 255 at a consistent temperature, nozzle 224 has a first heater 258a embedded into upstream nozzle body 226 including a first electrical connection (not shown). A first thermocouple 263a for monitoring the temperature of upstream nozzle body 226 and for controlling first heater 258a is also embedded into upstream nozzle body 226. Nozzle 224 also includes a second heater 258b including a second electrical connection 262 and a second thermocouple 263b for monitoring the temperature of downstream nozzle body 227 and for controlling second heater 258b. Heaters are coiled closer together at the upstream and downstream end of a nozzle body and looser in the center of a nozzle body because heat loss from the nozzle body occurs via contact with other components at the upstream and downstream ends. For example, sufficient heat is transferred from downstream nozzle body 227 to nozzle tip 254 and further to mold plate 234 to require additional heat to a downstream end 253 of downstream nozzle body 227. Similarly, heat is lost at the upstream end of upstream nozzle body 226 by transfer to manifold 212.
Under certain conditions, a threaded connection, such as connections 248, 251, and 255, may suffer from thread galling. Thread galling occurs when pressure builds between the contacting and sliding thread surfaces during the process of fastening the threads together. Protective oxides are broken, possibly wiped off, and interface metal high points shear or lock together. In some cases, the shearing may cause the threads to freeze together, so that the connections cannot be unthreaded. Several methods are available to reduce thread galling, such as using threads of different materials. Thus, thread galling may be avoided by having upstream nozzle body 226 be a different material than downstream nozzle body 227. Alternatively, one set of the threads of connections 248, 251, 255 may be coated with a layer of a different material, preferably a lubricating material such as copper, copper alloys, graphite, bronze, brass, or other material as would be apparent to one skilled in the art.
An alternate embodiment of an injection molding apparatus 310 is shown in FIG. 3. This embodiment includes a spacer 366 which defines a portion of nozzle channel 325. Spacer 336 is one of several devices that may be used to couple upstream nozzle body 326 and downstream nozzle body 327. In this case, spacer 366 has an upstream threaded end 367 threaded into downstream end 347 of upstream nozzle body 326 and a downstream threaded end 368 threaded into an upstream end 368 of downstream nozzle body 327. Spacer 366 may provide threads of a different material than upstream nozzle body 326 and downstream nozzle body 327 to avoid thread galling. Depending upon the material it is made from, spacer 366 may act as an insulator to avoid heat transfer between upstream and downstream nozzle bodies 326, 327 or as a heat sink to avoid overheating in the center of nozzle 324.
As seen in FIG. 4 , a downstream end 447 of upstream nozzle 426 is coupled to an upstream end 471 of intermediate nozzle body 470 by a threaded connection 451, and downstream end 472 of intermediate nozzle body 470 is coupled to an upstream end 452 of downstream nozzle body 427 by a threaded connection 473. Because of the length of an extended nozzle, such as nozzle 424, a small misalignment of the valve pin 438 in an upstream area of nozzle 424 may skew the valve pin so as to be greatly misaligned downstream at a mold gate 459. Thus, valve pin guides 474a, 474b and 474c may be positioned along the length of nozzle 424. For example, in FIG. 4 , valve pin guided 474a is positioned in recess 490 formed by upstream nozzle body 426 and intermediate nozzle body 470 and is retained by threaded connection 451. Valve pin guide 474b is positioned similarly in a recess 491 between intermediate nozzle body 470 and downstream nozzle body 427 and retained by threaded connection 473. Valve guide 545(a) is positioned and retained, similar to valve pin guide 264 in FIG. 2 , by nozzle tip 54.
Each of valve pin guides 474a, 474b and 474c comprise one or more channels therein (not shown) to allow melt to flow past each of valve pin guides 474a, 474b and 474c, while maintaining the alignment of the valve pin 438 in the center of nozzle channel 425 and aligned with mold gate 459. The valve pin guides may be made of the same material or a different material than that of nozzle bodies 426, 470 and 427. Further, the valve pin guides may be made of a material that has a high coefficient of thermal expansion. Therefore, as valve pin guides 474a and 474b thermally expand, each creates a seal and additional support for threaded connections 451 and 473. Further, downstream end 453 of downstream nozzle body 427 includes a flange 456 which contacts mold plate 434c to align nozzle 424 with mold gate 459, as discussed above with respect to FIG. 2.
To further guide the valve pin 438 and keep it aligned with mold gate 459, a pin support 475 is positioned between the upstream end 446 of upstream nozzle body 426 and manifold 412. Pin support 475 includes a melt channel 476 which is aligned and in fluid communication with manifold channel 414 at an upstream end 476a and which nozzle channel 425 at a downstream end 476b.
In the embodiment of FIG. 5A , upstream end 546 includes an upstream surface 546a which abuts a downstream surface 512a of manifold 512 and a shoulder 577 extending in a radial direction. A sleeve 579 is located between a lower surface 577a of shoulder 577 and a contact surface 543d of the manifold plate 543. Sleeve 579 is made of a material having a low thermal conductivity, for example titanium or ceramic, to act as insulation to prevent heat transfer from upstream nozzle body 526 to mold plate 543. Sleeve 579 also includes a cavity 579a to limit the contact between sleeve 579 and contact surface 543d of mold plate 543, reducing the heat loss from upstream nozzle body 526 even further. As would be apparent to one of ordinary skill in the art, sleeve 579 positions and aligns upstream nozzle body 526, and thus nozzle 524, with respect to manifold 512 and a mold gate. Sleeve 579 also includes an opening 579b through which leads for electrical connections 562b/562c extend to be externally connected to a power source.
In operation, the injection molding apparatus 510 starts in the cold condition, in which all of the components are at generally the same ambient temperature. During operation, manifold 512 and multiple nozzle bodies, such as upstream nozzle body 526, are heated and maintained at their respective temperatures so that the melt stream may flow unhindered into a melt cavity, which is chilled. As injection molding apparatus 510 is heated to operating temperature (as shown in FIGS. 5A and 5B), sealing insert 580 expands. Because sealing insert 580 has a higher coefficient of thermal expansion, the length of sealing insert 580 increases by a larger amount than the surrounding components, including upstream end 546 of upstream nozzle body 526 and manifold 512. As such, sealing insert 580 applies a sealing force to downstream surface 512a of manifold 512. The expansion of the sealing insert 580 may, in fact, cause upstream surface 546a of upstream nozzle body 526 and downstream surface 512a of manifold 512 to push apart slightly, however, fluid communication between the components is sealed, providing a continuous, sealed path for melt to flow between manifold channel 514 and nozzle channel 225.
Further, since there is no secured connection between manifold 512, upstream nozzle body 526 and sleeve 579, these components can shift upon thermal expansion to relieve some of the pressure created by the secured connections between the plurality of nozzle bodies due to thermal expansion.
Returning to FIG. 4 , sleeve 479 positions and aligns upstream nozzle body 426 and thus nozzle 424 with respect to manifold 412, pin support 475 and mold gate 459. Sleeve 479 and sealing ring 480 operate as discussed above with respect to sleeve 579 and sealing ring 580 of FIG. 5A , except that sealing ring 580 creates a seal with respect to pin support 475 instead of directly with manifold 412. Similarly, FIG. 5B , illustrates a valve gated injection molding apparatus 510a, including a valve pin 538, however, without a pin support. Upstream end 546 of upstream nozzle body 526 is further positioned with respect to manifold 512 via having sleeve 579 and seal insert 580, as discussed above with respect to FIG. 5A. FIG. 5B also shows an actuator 540 for retracting and extending valve pin 538 within a nozzle channels 525. Actuator 540 is a hydraulic or pneumatic piston that moves up and down via pressure changes created as a fluid flows in an out of the actuator via lines 541.
A nozzle tip 854, retained in a downstream end 853 of downstream nozzle body 827 by a second connection, has an extended portion 819. Extended portion 819 slidably fits into a bore 829 in mold plate 834a which is aligned with mold gate 859 in mold plate 834b. The extended portion 819 aligns downstream nozzle body 827, and thus nozzle channel 825, with mold gate 859. FIG. 8A shows the position of nozzle tip 854, when the injection molding apparatus is not being operated and is cold. During operation of injection molding apparatus 810, nozzle 824 thermally expands. As it does, nozzle tip 954 slides with respect to mold plates 834a, and 843b, and extended portion 819 of nozzle tip 854 expands into mold gate 859, as shown in FIG. 8B. Thus, the slidable coupling between nozzle tip 854 and mold plates 834a and 834b relieves the pressure caused by the secure connection between nozzle bodies in tandem. Extended portion 819 also expands in a radial direction, which is perpendicular to the flow of the melt stream, forming a seal with mold plates 834a and 834b to prevent leaking of the melt stream.
While the invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that they have been presented by way of example only, and not limitation, and various changes in form and details can be made therein without departing from the spirit and scope of the invention. For example, multiple nozzle bodies can be used in an injection molding apparatus of the present invention. As such, the number of nozzle bodies is not limited to either two or three as shown in the figures.
Thus, the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents. Additionally, all references cited herein, including issued U.S. patents, or any other references, are each entirely incorporated by reference herein, including all data, tables, figures, and text presented in the cited references.
The foregoing description of the specific embodiments will so fully reveal the general nature of the invention that others can, by applying knowledge within the skill of the art (including the contents of the references cited herein), readily modify and/or adapt for various applications such specific embodiments, without undue experimentation, without departing from the general concept of the present invention. Therefore, such adaptations and modifications are intended to be within the meaning and range of equivalents of the disclosed embodiments, based on the teaching and guidance presented herein. It is to be understood that the phraseology or terminology herein is for the purpose of description and not of limitation, such that the terminology or phraseology of the present specification is to be interpreted by the skilled artisan in light of the teachings and guidance presented herein, in combination with the knowledge of one of ordinary skill in the art.
Claims (67)
1. An injection molding apparatus, comprising:
a hot runner manifold including at least two manifold channels;
at least two nozzles, each of said at least two nozzles defining a nozzle channel in fluid communication with a respective one of said at least two manifolds channels;
at least one of said at least two nozzles including nozzle bodies coupled together said nozzle bodies including at least an upstream nozzle body having an upstream end adjacent said manifold channel and a downstream end, and a downstream nozzle body having a downstream end adjacent a mold plate and an upstream end directly adjacent the downstream end of the upstream nozzle body;
a separate and removable nozzle tip retained in said downstream end of said downstream nozzle body; and
another nozzle tip coupled to another one of said at least two nozzles.
2. The injection molding apparatus of claim 1 , further comprising a threaded connection configured to removably couple said nozzle bodies.
3. The injection molding apparatus of claim 2 , wherein said threaded connection includes a first set of threads and a second set of threads, wherein said first set of threads are made of a material that is different from said second set of threads.
4. The injection molding apparatus of claim 2 , wherein at least one of said upstream body or downstream nozzle body includes threads made from a material that is different from said nozzle bodies.
5. The injection molding apparatus of claim 1 , wherein at least one of said nozzles includes an intermediate nozzle body, wherein an upstream end of said intermediate nozzle body is removably fastened to said downstream end of said upstream nozzle body and a downstream end of said intermediate nozzle body is removably fastened to said upstream end of said downstream nozzle body.
6. The injection molding apparatus of claim 1 , wherein said nozzle tip is configured to be retained in said downstream nozzle body by a removably fastened connection.
7. The injection molding apparatus of claim 6 , wherein said nozzle tip is configured to be retained in said downstream nozzle body via a threaded connection.
8. The injection molding apparatus of claim 1 , wherein each of said nozzle bodies includes a heater attached thereto.
9. The injection molding apparatus of claim 8 , wherein said nozzle tip does not have a heater attached directly thereto.
10. The injection molding apparatus of claim 1 , wherein said upstream end of said upstream nozzle body is threadably connected to said manifold.
11. The injection molding apparatus of claim 1 , wherein said upstream end of said upstream nozzle body is slidably connected with said manifold.
12. The injection molding apparatus of claim 1 , wherein at least one of said at least two nozzles includes a valve pin and an actuator, the actuator configured for extending and retracting said valve pin.
13. The injection molding apparatus of claim 12 , wherein said at least one of said at least two nozzles includes at least one valve pin guide.
14. The injection molding apparatus of claim 12 , wherein a pin support is disposed between said upstream end of said upstream nozzle body and said hot runner manifold.
15. The injection molding apparatus of claim 1 , wherein said nozzle tip is made from a different material than said nozzle bodies.
16. The injection molding apparatus of claim 15 , wherein the material making up said nozzle tip has a high thermal conductivity.
17. The injection molding apparatus of claim 1 , wherein the mold plate comprises a split mold plate that includes a plurality of mold plates.
18. The injection molding apparatus of claim 1 , wherein said nozzle tip includes an extended portion that is slidable within a bore in said mold plate.
19. An injection molding apparatus, comprising:
a manifold defining at least two manifold channels;
at least two nozzles, each of said at least two nozzles defining a nozzle channel in fluid communication with a respective one of said at least two manifold channels an coupled to respective nozzle tips; and
at least one of said at least two nozzles including at least two nozzle bodies, the at least two nozzle bodies including an upstream nozzle body directly connected in tandem with a downstream nozzle body via a removably fastened connection, a respective one of the nozzle tips being disposed in a downstream end of said downstream nozzle body;
wherein each of said at least two nozzle bodies includes at least one heater attached thereto, and
wherein each of said nozzle tips does not have a separate heater connected directly thereto.
20. The injection molding apparatus of claim 19 , wherein each of said at least two nozzle bodies has a first heater at least partially embedded therein.
21. The injection molding apparatus of claim 20 , wherein each of said nozzle bodies includes at least two heaters.
22. The injection molding apparatus of claim 21 , wherein each of said nozzle bodies includes a second heater at least partially embedded therein.
23. The injection molding apparatus of claim 20 , wherein at lest one of said nozzle bodies includes a second heater embedded in a heating band coupled to said nozzle body.
24. A manifold injection molding apparatus, comprising:
a manifold defining at least two manifold channels;
at least two nozzles, each of said nozzles defining a nozzle channel in fluid communication with a respective one of said at manifold channels; and
at least one of said nozzles including at least two nozzle bodies, including at least a upstream nozzle body and a downstream nozzle body removably fastened in tandem;
wherein each of said nozzle bodies includes at least a first heater and a second hater, wherein each of at least said first heater is embedded into each of said nozzle bodies.
25. The injection molding apparatus of claim 24 , wherein each of said second heater is embodied in a heating band surrounding an outside surface of each of said nozzle bodies.
26. The injection molding apparatus of claim 25 , wherein said heating band comprises a material having a high thermal conductivity.
27. The injection molding apparatus of claim 24 , wherein each of said first heater and said second heater have separate electrical connections extending therefrom.
28. The injection molding apparatus of claim 24 , wherein said downstream nozzle body includes an electrical connection for at least one of said first and second heaters with leads exiting said injection molding apparatus through a bore between a first and second mold plate.
29. The injection molding apparatus of claim 24 , wherein said downstream nozzle body includes an electrical connection for at least one of said first and second heaters with leads drawn along an opening in a mold plate into which said nozzle is inserted.
30. The injection molding apparatus of claim 24 , wherein a nozzle tip is disposed in a downstream end of said downstream nozzle body.
31. The injection molding apparatus of claim 30 , wherein said nozzle ti is not heated by a separate hater attached directly thereto.
32. The injection molding apparatus of claim 24 , wherein both said first heater and said second heater are embedded in each of said nozzle bodies.
33. An injection molding nozzle apparatus, comprising:
first and second nozzles each during a nozzle channel that is in fluid communication with corresponding in first and second manifold channels of a hot runner manifold, at least one of the first and second nozzles including upstream and downstream nozzle bodies coupled together, the upstream nozzle body having an upstream end adjacent the manifold channel and the downstream nozzle body having a downstream end adjacent a mold plate;
removable nozzle tips coupled to each of the first and second nozzles; and
a spacer having a first end threaded to the upstream nozzle body and a second end threaded to the downstream nozzle body.
34. The injection molding nozzle apparatus of claim 33 , wherein said spacer is made from a different material than said upstream and said downstream nozzle bodies.
35. The injection molding nozzle apparatus of claim 34 , wherein said spacer is an insulator.
36. The injection molding nozzle apparatus of claim 34 , wherein said spacer is a heat sink.
37. An injection molding apparatus comprising:
a manifold having a manifold channel;
a nozzle having a nozzle body including an upstream nozzle body, a downstream nozzle body, and a spacer disposed between said upstream nozzle body and said downstream nozzle body such that said upstream nozzle body, said downstream nozzle body, and said spacer collectively define a nozzle channel in fluid communication with said manifold channel, wherein said spacer is connected to said downstream nozzle body such that said spacer is not movable relative to said downstream nozzle body, and wherein said upstream and downstream nozzle bodies are heated and said spacer is devoid of a nozzle heater; and
a nozzle tip coupled to the downstream nozzle body, said nozzle tip for receiving melt from said nozzle channel and delivering the melt to a mold cavity.
38. The injection molding apparatus of claim 37 , further comprising:
a first thermocouple coupled to said upstream nozzle body; and
a second thermocouple coupled to said downstream nozzle body.
39. The injection molding apparatus of claim 37 , wherein said spacer is removably connected to at least one of said upstream nozzle body and said downstream nozzle body.
40. The injection molding apparatus of claim 37 , wherein said spacer is made from a material such that it acts as a heat sink.
41. The injection molding apparatus of claim 37 , wherein said spacer is made from a material such that it acts as an insulator to avoid heat transfer between said upstream nozzle body and said downstream nozzle body.
42. The injection molding apparatus of claim 37 , wherein said spacer is connected to said downstream nozzle body using a threaded connection.
43. The injection molding apparatus of claim 37 , wherein said spacer is connected to said upstream nozzle body using a threaded connection and is connected to said downstream nozzle body using a threaded connection.
44. The injection molding apparatus of claim 37 , wherein said nozzle tip is a single nozzle tip.
45. A nozzle for use in an injection molding apparatus having a manifold and a mold gate, said nozzle comprising:
a first nozzle body disposed adjacent the manifold having a first melt channel;
a spacer having a spacer melt channel; and
a second nozzle body disposed adjacent the mold gate and having a second melt channel, said spacer being disposed between said first nozzle body and said second nozzle body such that said first, second and spacer melt channels collectively define a nozzle melt channel,
wherein said spacer is connected to said second nozzle body such that said spacer is not slidable relative to said second nozzle body, and wherein said first and second nozzle bodies are heated and said spacer is devoid of a nozzle heater.
46. The nozzle of claim 45 , wherein said spacer is removably connected to at least one of said first nozzle body and said second nozzle body.
47. The nozzle of claim 45 , wherein said spacer is made from a material such that it acts as a heat sink.
48. The injection molding apparatus of claim 45 , wherein said spacer is made from a material such that it acts as an insulator.
49. The nozzle of claim 45 , wherein said spacer is connected to said second nozzle body via a threaded connection.
50. The nozzle of claim 45 , wherein said spacer is connected to said first nozzle body using a threaded connection and is connected to said second nozzle body using a threaded connection.
51. An injection molding apparatus having a plurality of mold gates, said apparatus comprising:
a manifold; and
a plurality of nozzles disposed between said manifold and the mold gates, wherein at least one of said plurality of nozzles has a nozzle body including an upstream nozzle body adjacent said manifold, a spacer, and a downstream nozzle body adjacent one of the mold gates, said spacer disposed between said upstream nozzle body and said downstream nozzle body, and wherein at least two of said nozzles are of different lengths,
wherein said upstream and downstream nozzle bodies of said at least one nozzle are heated and said spacer does not have a heater in contact with it.
52. The injection molding apparatus of claim 51 , wherein at least two of said nozzles are in fluid communication with separate mold cavities.
53. The injection molding apparatus of claim 51 , wherein said spacer is connected to each of said upstream and downstream nozzle bodies using a threaded connection.
54. An injection molding apparatus comprising:
a manifold having a heater and a manifold melt channel for distributing melt from a manifold inlet to a plurality of manifold outlets;
a nozzle having a nozzle melt channel, the nozzle being coupled to the manifold for receiving the melt from a manifold outlet, the nozzle including:
an upstream nozzle body forming a portion of said nozzle melt channel,
a downstream nozzle body forming a portion of said nozzle melt channel,
a spacer forming a portion of said nozzle melt channel and disposed between said upstream and downstream nozzle bodies such that said upstream nozzle body, said downstream nozzle body, and said spacer are coupled together along a common axis, wherein said spacer is made from a material such that it acts as an insulator as compared to said upstream and downstream nozzle bodies, and
a heater coupled to said upstream and downstream nozzle bodies; and
a nozzle tip coupled to a downstream end of said downstream nozzle body, said nozzle tip for receiving the melt from said nozzle melt channel and delivering the melt to a mold cavity.
55. The injection molding apparatus of claim 54 , wherein said upstream and downstream nozzle bodies are made of the same material.
56. The injection molding apparatus of claim 55 , wherein said upstream and downstream nozzle bodies are made of steel.
57. The injection molding apparatus of claim 54 , wherein said nozzle heater comprises a first heater coupled to said upstream nozzle body and a second heater coupled to said downstream nozzle body.
58. The injection molding apparatus of claim 57 , further comprising a first thermocouple coupled to said upstream nozzle body and a second thermocouple coupled to said downstream nozzle body.
59. The injection molding apparatus of claim 58 , wherein said first heater and said second heater are independently controllable.
60. The injection molding apparatus of claim 54 , wherein an upstream end of said spacer is directly connected to a downstream end of said upstream nozzle body, and a downstream end of said spacer is directly connected to an upstream end of said downstream nozzle body.
61. The injection molding apparatus of claim 60 , wherein said spacer is connected to said upstream and downstream nozzle bodies by threads.
62. The injection molding apparatus of claim 54 , wherein said spacer is coupled to said upstream and downstream nozzle bodies by threads.
63. An injection molding apparatus comprising:
a manifold having a heater and a manifold melt channel for distributing melt from a manifold inlet to a plurality of manifold outlets;
a nozzle having a nozzle melt channel, said nozzle being coupled to said manifold for receiving the melt from a manifold outlet, said nozzle including:
an upstream nozzle body forming a portion of said nozzle melt channel,
a downstream nozzle body forming a portion of said nozzle melt channel,
a spacer forming a portion of said nozzle melt channel, said spacer being disposed between and coupled to said upstream and downstream nozzle bodies such that the spacer substantially limits heat transfer between said upstream nozzle body and said downstream nozzle body, and
a heater coupled to said upstream and downstream nozzle bodies; and
a nozzle tip coupled to a downstream end of said downstream nozzle body, said nozzle tip for receiving the melt from said nozzle melt channel and delivering the melt to a mold cavity.
64. The injection molding apparatus of claim 63 , wherein said spacer is formed from an insulative material.
65. The injection molding apparatus of claim 63 , wherein said upstream and downstream nozzle bodies are made of the same material.
66. The injection molding apparatus of claim 65 , wherein said upstream and downstream nozzle bodies are made of steel.
67. The injection molding apparatus of claim 63 , wherein said spacer is coupled to said upstream and downstream nozzle bodies by threads.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/351,770 USRE41536E1 (en) | 2004-01-06 | 2009-01-09 | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/751,507 US7160100B2 (en) | 2004-01-06 | 2004-01-06 | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
US12/351,770 USRE41536E1 (en) | 2004-01-06 | 2009-01-09 | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/751,507 Reissue US7160100B2 (en) | 2004-01-06 | 2004-01-06 | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE41536E1 true USRE41536E1 (en) | 2010-08-17 |
Family
ID=34711439
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/751,507 Ceased US7160100B2 (en) | 2004-01-06 | 2004-01-06 | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
US12/351,770 Active 2024-11-24 USRE41536E1 (en) | 2004-01-06 | 2009-01-09 | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/751,507 Ceased US7160100B2 (en) | 2004-01-06 | 2004-01-06 | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
Country Status (5)
Country | Link |
---|---|
US (2) | US7160100B2 (en) |
CN (1) | CN100532058C (en) |
CA (1) | CA2455514C (en) |
DE (1) | DE102004001665B4 (en) |
IT (1) | ITTO20040593A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130313751A1 (en) * | 2011-02-03 | 2013-11-28 | Risilux | Injection molding apparatus for manufacturing hollow objects, in particular plastic preforms, resp. containers and method therefor |
US9649800B2 (en) | 2014-06-25 | 2017-05-16 | Otto Männer Innovation GmbH | Modular side gating nozzle and mold |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7160100B2 (en) | 2004-01-06 | 2007-01-09 | Mold-Masters Limited | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
CA2482254A1 (en) * | 2004-04-07 | 2005-10-07 | Mold-Masters Limited | Modular injection nozzle having a thermal barrier |
US7462031B2 (en) | 2005-11-25 | 2008-12-09 | Mold-Masters (2007) Limited | Injection molding nozzle with recessed terminal |
KR100791909B1 (en) * | 2006-04-10 | 2008-01-07 | 유도실업주식회사 | The moving protector of nozzle so as to minimise the probability of error due to thermal expansion |
ITTO20060716A1 (en) * | 2006-10-06 | 2008-04-07 | Inglass Spa | INJECTOR FOR PLASTIC INJECTION MOLDING |
US7513772B2 (en) * | 2007-05-09 | 2009-04-07 | Mold-Masters (2007) Limited | Injection molding nozzle with valve pin alignment |
WO2009052611A1 (en) * | 2007-10-22 | 2009-04-30 | Mold-Masters (2007) Limited | Injection molding apparatus |
DE102007052597A1 (en) * | 2007-11-03 | 2009-05-07 | Mht Mold & Hotrunner Technology Ag | Angle adapter and sprue system for a sprue adapter |
CN101952098A (en) * | 2007-12-21 | 2011-01-19 | 马斯特模具(2007)有限公司 | Method of manufacturing hot-runner component and hot-runner components thereof |
DE202008007918U1 (en) * | 2008-06-16 | 2009-11-19 | Günther Heisskanaltechnik Gmbh | Injection molding nozzle for an injection mold |
US9174372B2 (en) | 2013-03-15 | 2015-11-03 | Sabic Global Technologies B.V. | Shut off nozzle system and methods for making and using the same |
CN103496104A (en) * | 2013-09-27 | 2014-01-08 | 苏州好特斯模具有限公司 | Embedded type hot nozzle assembly of heater connector |
ITUB20154577A1 (en) * | 2015-10-12 | 2017-04-12 | Inglass Spa | INJECTOR FOR PLASTIC INJECTION MOLDING EQUIPMENT AND INJECTION MOLDING EQUIPMENT |
CA3018149C (en) * | 2016-03-18 | 2020-09-22 | Honda Motor Co., Ltd. | Injection molding machine nozzle |
CN111070583A (en) * | 2019-12-23 | 2020-04-28 | 苏州奥斯姆热流道科技有限公司 | Hot runner routing mechanism |
Citations (87)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3677682A (en) | 1970-03-09 | 1972-07-18 | Ladislao Wladyslaw Putkowski | Hot runner system |
US3812323A (en) | 1972-11-03 | 1974-05-21 | Ford Motor Co | Electrical heating bands for a feeding system |
AU452137B2 (en) | 1971-09-24 | 1974-08-29 | Bischoff Chemical Corporation | Injection nozzle of adjustable length |
US3843295A (en) | 1973-05-24 | 1974-10-22 | Bischoff Chemical Corp | Injection molding machine with adjustable nozzle length means |
US4230934A (en) | 1978-05-09 | 1980-10-28 | Ter Beek Hengelo (T.B.H.) B.V. | Internally heatable nozzle having a divisible housing and a divisible core |
US4344750A (en) | 1981-04-02 | 1982-08-17 | Gellert Jobst U | Edge gated injection molding system with hollow seals |
US4370115A (en) | 1980-07-28 | 1983-01-25 | Takashi Miura | Injection molding method and device |
US4517453A (en) | 1983-02-02 | 1985-05-14 | Shigeru Tsutsumi | Hot tip bushing means for a synthetic resin injection molding machine |
JPS60110416A (en) | 1983-11-22 | 1985-06-15 | Matsushita Electric Ind Co Ltd | Mold assembly |
US4557685A (en) | 1984-07-13 | 1985-12-10 | Gellert Jobst U | Heated nozzle for injection molding apparatus |
US4576567A (en) | 1983-09-12 | 1986-03-18 | Gellert Jobst U | Injection molding system having an insulation sleeve |
DE8618162U1 (en) | 1986-07-08 | 1986-08-21 | Plastic-Service GmbH, 6800 Mannheim | Hot runner nozzle |
DE8620956U1 (en) | 1986-08-05 | 1986-11-27 | Jetform Heisskanalnormalien Und Zubehoer Gmbh, 7255 Rutesheim, De | |
US4662837A (en) | 1985-03-18 | 1987-05-05 | Husky Injection Molding Systems, Ltd. | Apparatus for injection molding |
US4678426A (en) | 1984-02-06 | 1987-07-07 | Bernard Stauber | Transfer nozzle in a hot runner tool |
JPS63202418A (en) | 1987-02-18 | 1988-08-22 | Fuji Kikai Seizo Kk | Hot runner type injection molding method and apparatus |
US4795338A (en) | 1988-01-29 | 1989-01-03 | Gellert Jobst U | Mounting for injection molding nozzle |
US4818217A (en) | 1988-04-13 | 1989-04-04 | Mold-Masters Limited | Injection molding system with nozzles in tandem |
US4836766A (en) | 1988-04-13 | 1989-06-06 | Gellert Jobst U | Injection molding valve gating one of two nozzles in tandem |
US4875848A (en) | 1988-02-16 | 1989-10-24 | Gellert Jobst U | Injection molding heated gate insert and method |
US4875845A (en) | 1987-03-31 | 1989-10-24 | Sumitomo Heavy Industries, Ltd. | Injection nozzle for an injection molding machine |
US4892474A (en) | 1989-02-21 | 1990-01-09 | Gellert Jobst U | Profiled plate heaters for injection molding nozzles |
US4899288A (en) | 1984-12-05 | 1990-02-06 | Shigeru Tsutsumi | Temperature control indicating apparatus of a hot runner in a thermoplastic synthetic resin injection molding system |
US4902218A (en) | 1987-12-24 | 1990-02-20 | Societe A Responsabilite Limitee Dite: Delta Projet | Nozzle for plastic injection mould |
JPH02112919A (en) | 1988-10-22 | 1990-04-25 | Mitsuhiro Kanao | Nozzle with valve |
FR2641227A1 (en) | 1988-12-30 | 1990-07-06 | Leonard Roland | Mould nozzle with controlled closure, for injecting plastic |
US4945630A (en) | 1990-01-19 | 1990-08-07 | Gellert Jobst U | Method of making a selected size injection molding nozzle |
US4981431A (en) | 1989-07-13 | 1991-01-01 | Mold-Masters Limited | Injection molding system with flanged insulating gate seal |
US5028227A (en) | 1988-10-31 | 1991-07-02 | Mold-Masters Limited | Injection molding nozzle with replaceable gate insert |
EP0443203A2 (en) | 1990-02-21 | 1991-08-28 | Sfr Formenbau Dangelmaier Gmbh | Heated nozzle, so-called long nozzle for a plastic injection moulding mould |
US5046942A (en) | 1990-11-19 | 1991-09-10 | Gellert Jobst U | Injection molding nozzle having tapered heating element adjacent the bore |
US5051086A (en) | 1990-07-27 | 1991-09-24 | Gellert Jobst U | Insulated injection molding nozzle |
US5061174A (en) | 1990-11-19 | 1991-10-29 | Gellert Jobst U | Injection molding apparatus having separate heating element in the cavity forming insert |
US5125827A (en) | 1990-07-27 | 1992-06-30 | Gellert Jobst U | Injection molding apparatus having an insulative and resilient spacer member |
US5135377A (en) | 1990-10-12 | 1992-08-04 | Gellert Jobst U | Injection molding nozzle for an injection molding system |
US5225211A (en) | 1990-09-12 | 1993-07-06 | Nippondenso Co., Ltd. | Hot runner injection molding machine |
US5232710A (en) | 1990-07-16 | 1993-08-03 | Nissei Asb Machine Co., Ltd. | Multi-ply molding hot-runner mold |
US5268184A (en) | 1992-07-13 | 1993-12-07 | Gellert Jobst U | Injection molding nozzle with removable forward member |
US5299928A (en) | 1993-07-26 | 1994-04-05 | Gellert Jobst U | Two-piece injection molding nozzle seal |
US5316468A (en) | 1991-08-16 | 1994-05-31 | Dipl.-Ing Herbert Gunther Gesellschaft Mbh | Side gate hot runner nozzle |
US5320513A (en) | 1992-12-10 | 1994-06-14 | Husky Injection Molding Systems Ltd. | Printed circuit board for an injection molding apparatus |
DE4312153A1 (en) | 1993-04-14 | 1994-10-20 | Wolff Hans Martin | Hot-runner nozzle |
DE4404894C1 (en) | 1994-02-16 | 1995-01-05 | Dangelmaier Sfr Formbau | Heated nozzle for feeding a polymer melt into the cavity of a plastics injection mould. |
DE4324027A1 (en) | 1993-07-17 | 1995-01-19 | Goetze Ag | Apparatus for injection-moulding and transfer-moulding machines |
WO1995005930A1 (en) | 1993-08-26 | 1995-03-02 | Fill Robert J | Nozzle for injection moulder |
US5421716A (en) | 1994-05-11 | 1995-06-06 | Gellert; Jobst U. | Injection molding nozzle with two removable inserts |
US5494433A (en) | 1995-06-05 | 1996-02-27 | Gellert; Jobst U. | Injection molding hot tip side gate seal having a circumferential rim |
US5507637A (en) | 1995-03-02 | 1996-04-16 | Husky Injection Molding Systems Ltd. | Hot runner sliding nozzle |
US5518389A (en) | 1991-10-16 | 1996-05-21 | Kao Corporation | Multi-cavity mold apparatus having independently controlled heated runners |
US5536165A (en) | 1995-06-05 | 1996-07-16 | Gellert; Jobst U. | Injection molding apparatus with nozzle advanceable to mount side gate seals |
US5591465A (en) | 1995-05-15 | 1997-01-07 | Mold-Masters Limited | Side gated injection molding apparatus with radially mounted gate inserts |
US5609893A (en) | 1995-01-12 | 1997-03-11 | Jk Molds, Inc. | Probe assembly for injection molding apparatus |
JPH09123222A (en) | 1995-10-27 | 1997-05-13 | Sekisui Chem Co Ltd | Hot-runner mold |
US5820803A (en) | 1995-10-31 | 1998-10-13 | Takaoka Seiko Co., Ltd. | Valve gate-type injection molding method and apparatus therefor |
US5820899A (en) | 1996-12-23 | 1998-10-13 | Mold-Masters Limited | Injection molding nozzle with edge gate inserts and sealing ring |
US5871786A (en) | 1997-04-04 | 1999-02-16 | Kona Corporation | Tip heated hot runner nozzle |
JPH1158448A (en) | 1997-08-12 | 1999-03-02 | Sekisui Chem Co Ltd | Hot runner mold |
US5879727A (en) | 1997-01-21 | 1999-03-09 | Husky Injection Molding Systems, Ltd. | Insulated modular injection nozzle system |
US5894025A (en) | 1997-06-13 | 1999-04-13 | Kona Corporation | Valve pin actuator |
US5952016A (en) | 1997-11-13 | 1999-09-14 | Gellert; Jobst Ulrich | Side gated injection molding apparatus with actuated manifold |
EP0995574A1 (en) | 1998-10-20 | 2000-04-26 | Incoe International, Inc. | Nozzles for injection moulding apparatus |
EP0835176B1 (en) | 1995-06-30 | 2000-05-03 | Christian Stern | Plastic injection moulding nozzle |
US6095790A (en) | 1998-03-27 | 2000-08-01 | Mold-Masters Limited | Injection molding cylindrical manifold insert and method |
WO2000046008A1 (en) | 1999-02-04 | 2000-08-10 | Stern Christian R | Method for conducting heat in a nozzle |
WO2001015884A2 (en) | 1999-08-27 | 2001-03-08 | Boekel Franciscus Antonius Joz | Injection-moulding device |
US6261083B1 (en) | 1996-01-11 | 2001-07-17 | Christian R. Stern | Nozzle for injection molding |
US6305923B1 (en) | 1998-06-12 | 2001-10-23 | Husky Injection Molding Systems Ltd. | Molding system using film heaters and/or sensors |
US6447283B1 (en) | 1999-06-01 | 2002-09-10 | Jobst Ulrich Gellert | Injection molding heater with melt bore therethrough |
JP2002331552A (en) | 2001-05-09 | 2002-11-19 | Mitsubishi Materials Corp | Valve gate type die device |
JP2003276057A (en) | 2002-03-26 | 2003-09-30 | Honda Motor Co Ltd | In-mold nozzle mechanism for hot runner die |
US6666675B2 (en) | 2001-01-30 | 2003-12-23 | Nissei Plastic Industrial Co., Ltd. | Injection molding nozzle for resin of highly temperature-dependent viscosity |
US20040005380A1 (en) | 2002-02-04 | 2004-01-08 | Denis Babin | Thermal seal between manifold and nozzle |
DE10333206A1 (en) | 2002-09-13 | 2004-04-01 | Türk & Hillinger GmbH | Electric heater for heating an injection nozzle for plastics, is cylindrical, fits around injection nozzle and comprises inner and outer metal tubes with core fitted between them, around which heating wire is wound |
US20040101589A1 (en) | 2002-11-21 | 2004-05-27 | Mold-Masters Limited | Nozzle with thermally conductive device |
US20040166194A1 (en) | 2003-02-20 | 2004-08-26 | Robert Trudeau | Heat dissipation device for and method of dissipating heat from a nozzle |
US6789745B1 (en) | 1999-10-18 | 2004-09-14 | Mold-Masters Limited | Injection nozzle system |
US20040197437A1 (en) | 2003-04-07 | 2004-10-07 | Mold-Masters Limited | Hot runner nozzle with melt sealing |
US20050019444A1 (en) | 2003-04-07 | 2005-01-27 | Mold-Masters Limited | Front-mountable, edge-gating nozzle |
US20050100625A1 (en) | 2003-11-11 | 2005-05-12 | Tooman Patrick A. | Valve gate assembly |
JP2005132026A (en) | 2003-10-31 | 2005-05-26 | Seiki Corp | Hot runner nozzle and hot runner nozzle unit |
US20050147713A1 (en) | 2004-01-06 | 2005-07-07 | Hans Hagelstein | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
US6921257B2 (en) | 2001-10-03 | 2005-07-26 | Mold-Masters Limited | Tip assembly having at least three components for hot runner nozzle |
US20050225000A1 (en) | 2004-04-07 | 2005-10-13 | Mold-Masters Limited | Modular injection nozzle having a thermal barrier |
US20050226956A1 (en) | 2004-04-07 | 2005-10-13 | Jonathon Fischer | Nozzle having a nozzle body with heated and unheated nozzle body segments |
KR20060032979A (en) | 2006-03-27 | 2006-04-18 | 허남욱 | Hot runner valve nozzle for molding plastics having double bodies adjusting length |
US7137806B2 (en) | 2000-06-16 | 2006-11-21 | Mold-Masters Limited | Thermally balanced hot runner nozzle |
US7306454B2 (en) | 2003-04-07 | 2007-12-11 | Mold-Masters Limited | Front-mountable injection molding nozzle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4307115A (en) * | 1979-10-18 | 1981-12-22 | E. I. Du Pont De Nemours And Company | Insecticidal composition |
US5412716A (en) * | 1993-05-03 | 1995-05-02 | At&T Bell Laboratories | System for efficiently powering repeaters in small diameter cables |
CA2193327A1 (en) * | 1996-12-18 | 1998-06-18 | Jobst Ulrich Gellert | Injection molding apparatus with insert secured through the manifold to a nozzle |
-
2004
- 2004-01-06 US US10/751,507 patent/US7160100B2/en not_active Ceased
- 2004-01-12 DE DE102004001665.8A patent/DE102004001665B4/en not_active Expired - Lifetime
- 2004-01-21 CA CA2455514A patent/CA2455514C/en not_active Expired - Lifetime
- 2004-04-21 CN CNB2004100369262A patent/CN100532058C/en not_active Expired - Lifetime
- 2004-09-09 IT IT000593A patent/ITTO20040593A1/en unknown
-
2009
- 2009-01-09 US US12/351,770 patent/USRE41536E1/en active Active
Patent Citations (107)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3677682A (en) | 1970-03-09 | 1972-07-18 | Ladislao Wladyslaw Putkowski | Hot runner system |
AU452137B2 (en) | 1971-09-24 | 1974-08-29 | Bischoff Chemical Corporation | Injection nozzle of adjustable length |
US3812323A (en) | 1972-11-03 | 1974-05-21 | Ford Motor Co | Electrical heating bands for a feeding system |
US3843295A (en) | 1973-05-24 | 1974-10-22 | Bischoff Chemical Corp | Injection molding machine with adjustable nozzle length means |
US4230934A (en) | 1978-05-09 | 1980-10-28 | Ter Beek Hengelo (T.B.H.) B.V. | Internally heatable nozzle having a divisible housing and a divisible core |
US4370115A (en) | 1980-07-28 | 1983-01-25 | Takashi Miura | Injection molding method and device |
US4344750A (en) | 1981-04-02 | 1982-08-17 | Gellert Jobst U | Edge gated injection molding system with hollow seals |
US4517453A (en) | 1983-02-02 | 1985-05-14 | Shigeru Tsutsumi | Hot tip bushing means for a synthetic resin injection molding machine |
US4576567A (en) | 1983-09-12 | 1986-03-18 | Gellert Jobst U | Injection molding system having an insulation sleeve |
JPS60110416A (en) | 1983-11-22 | 1985-06-15 | Matsushita Electric Ind Co Ltd | Mold assembly |
US4678426A (en) | 1984-02-06 | 1987-07-07 | Bernard Stauber | Transfer nozzle in a hot runner tool |
US4557685A (en) | 1984-07-13 | 1985-12-10 | Gellert Jobst U | Heated nozzle for injection molding apparatus |
US4899288A (en) | 1984-12-05 | 1990-02-06 | Shigeru Tsutsumi | Temperature control indicating apparatus of a hot runner in a thermoplastic synthetic resin injection molding system |
US4662837A (en) | 1985-03-18 | 1987-05-05 | Husky Injection Molding Systems, Ltd. | Apparatus for injection molding |
DE8618162U1 (en) | 1986-07-08 | 1986-08-21 | Plastic-Service GmbH, 6800 Mannheim | Hot runner nozzle |
DE8620956U1 (en) | 1986-08-05 | 1986-11-27 | Jetform Heisskanalnormalien Und Zubehoer Gmbh, 7255 Rutesheim, De | |
JPS63202418A (en) | 1987-02-18 | 1988-08-22 | Fuji Kikai Seizo Kk | Hot runner type injection molding method and apparatus |
US4875845A (en) | 1987-03-31 | 1989-10-24 | Sumitomo Heavy Industries, Ltd. | Injection nozzle for an injection molding machine |
US4902218A (en) | 1987-12-24 | 1990-02-20 | Societe A Responsabilite Limitee Dite: Delta Projet | Nozzle for plastic injection mould |
US4795338A (en) | 1988-01-29 | 1989-01-03 | Gellert Jobst U | Mounting for injection molding nozzle |
US4875848A (en) | 1988-02-16 | 1989-10-24 | Gellert Jobst U | Injection molding heated gate insert and method |
US4818217A (en) | 1988-04-13 | 1989-04-04 | Mold-Masters Limited | Injection molding system with nozzles in tandem |
US4836766A (en) | 1988-04-13 | 1989-06-06 | Gellert Jobst U | Injection molding valve gating one of two nozzles in tandem |
JPH02112919A (en) | 1988-10-22 | 1990-04-25 | Mitsuhiro Kanao | Nozzle with valve |
US5028227A (en) | 1988-10-31 | 1991-07-02 | Mold-Masters Limited | Injection molding nozzle with replaceable gate insert |
FR2641227A1 (en) | 1988-12-30 | 1990-07-06 | Leonard Roland | Mould nozzle with controlled closure, for injecting plastic |
US4892474A (en) | 1989-02-21 | 1990-01-09 | Gellert Jobst U | Profiled plate heaters for injection molding nozzles |
US4981431A (en) | 1989-07-13 | 1991-01-01 | Mold-Masters Limited | Injection molding system with flanged insulating gate seal |
EP0438739B1 (en) | 1990-01-19 | 1994-08-10 | Jobst Ulrich Gellert | Method of making a selected size injection molding nozzle |
EP0438739A1 (en) | 1990-01-19 | 1991-07-31 | Jobst Ulrich Gellert | Method of making a selected size injection molding nozzle |
US4945630A (en) | 1990-01-19 | 1990-08-07 | Gellert Jobst U | Method of making a selected size injection molding nozzle |
EP0443203A2 (en) | 1990-02-21 | 1991-08-28 | Sfr Formenbau Dangelmaier Gmbh | Heated nozzle, so-called long nozzle for a plastic injection moulding mould |
DE4005437A1 (en) | 1990-02-21 | 1991-08-29 | Dangelmaier Sfr Formbau | Injection moulding jet body - has outer spiral groove to hold heater |
EP0443203B1 (en) | 1990-02-21 | 1994-08-31 | Sfr Formenbau Dangelmaier Gmbh | Heated nozzle, so-called long nozzle for a plastic injection moulding mould |
DE4005437C2 (en) | 1990-02-21 | 1992-05-21 | Sfr-Formenbau Dangelmaier Gmbh, 7410 Reutlingen, De | |
US5232710A (en) | 1990-07-16 | 1993-08-03 | Nissei Asb Machine Co., Ltd. | Multi-ply molding hot-runner mold |
US5051086A (en) | 1990-07-27 | 1991-09-24 | Gellert Jobst U | Insulated injection molding nozzle |
US5125827A (en) | 1990-07-27 | 1992-06-30 | Gellert Jobst U | Injection molding apparatus having an insulative and resilient spacer member |
US5225211A (en) | 1990-09-12 | 1993-07-06 | Nippondenso Co., Ltd. | Hot runner injection molding machine |
US5135377A (en) | 1990-10-12 | 1992-08-04 | Gellert Jobst U | Injection molding nozzle for an injection molding system |
US5061174A (en) | 1990-11-19 | 1991-10-29 | Gellert Jobst U | Injection molding apparatus having separate heating element in the cavity forming insert |
US5046942A (en) | 1990-11-19 | 1991-09-10 | Gellert Jobst U | Injection molding nozzle having tapered heating element adjacent the bore |
US5316468A (en) | 1991-08-16 | 1994-05-31 | Dipl.-Ing Herbert Gunther Gesellschaft Mbh | Side gate hot runner nozzle |
US5518389A (en) | 1991-10-16 | 1996-05-21 | Kao Corporation | Multi-cavity mold apparatus having independently controlled heated runners |
EP0583601A1 (en) | 1992-07-13 | 1994-02-23 | Jobst Ulrich Gellert | Injection molding nozzle with removable forward member |
US5268184A (en) | 1992-07-13 | 1993-12-07 | Gellert Jobst U | Injection molding nozzle with removable forward member |
US5320513A (en) | 1992-12-10 | 1994-06-14 | Husky Injection Molding Systems Ltd. | Printed circuit board for an injection molding apparatus |
DE4312153A1 (en) | 1993-04-14 | 1994-10-20 | Wolff Hans Martin | Hot-runner nozzle |
DE4324027A1 (en) | 1993-07-17 | 1995-01-19 | Goetze Ag | Apparatus for injection-moulding and transfer-moulding machines |
US5299928A (en) | 1993-07-26 | 1994-04-05 | Gellert Jobst U | Two-piece injection molding nozzle seal |
WO1995005930A1 (en) | 1993-08-26 | 1995-03-02 | Fill Robert J | Nozzle for injection moulder |
DE4404894C1 (en) | 1994-02-16 | 1995-01-05 | Dangelmaier Sfr Formbau | Heated nozzle for feeding a polymer melt into the cavity of a plastics injection mould. |
US5421716A (en) | 1994-05-11 | 1995-06-06 | Gellert; Jobst U. | Injection molding nozzle with two removable inserts |
US5609893A (en) | 1995-01-12 | 1997-03-11 | Jk Molds, Inc. | Probe assembly for injection molding apparatus |
US5507637A (en) | 1995-03-02 | 1996-04-16 | Husky Injection Molding Systems Ltd. | Hot runner sliding nozzle |
US5591465A (en) | 1995-05-15 | 1997-01-07 | Mold-Masters Limited | Side gated injection molding apparatus with radially mounted gate inserts |
US5494433A (en) | 1995-06-05 | 1996-02-27 | Gellert; Jobst U. | Injection molding hot tip side gate seal having a circumferential rim |
US5536165A (en) | 1995-06-05 | 1996-07-16 | Gellert; Jobst U. | Injection molding apparatus with nozzle advanceable to mount side gate seals |
EP0835176B1 (en) | 1995-06-30 | 2000-05-03 | Christian Stern | Plastic injection moulding nozzle |
JPH09123222A (en) | 1995-10-27 | 1997-05-13 | Sekisui Chem Co Ltd | Hot-runner mold |
US5820803A (en) | 1995-10-31 | 1998-10-13 | Takaoka Seiko Co., Ltd. | Valve gate-type injection molding method and apparatus therefor |
US6261083B1 (en) | 1996-01-11 | 2001-07-17 | Christian R. Stern | Nozzle for injection molding |
US5820899A (en) | 1996-12-23 | 1998-10-13 | Mold-Masters Limited | Injection molding nozzle with edge gate inserts and sealing ring |
US5879727A (en) | 1997-01-21 | 1999-03-09 | Husky Injection Molding Systems, Ltd. | Insulated modular injection nozzle system |
US5871786A (en) | 1997-04-04 | 1999-02-16 | Kona Corporation | Tip heated hot runner nozzle |
US5894025A (en) | 1997-06-13 | 1999-04-13 | Kona Corporation | Valve pin actuator |
JPH1158448A (en) | 1997-08-12 | 1999-03-02 | Sekisui Chem Co Ltd | Hot runner mold |
US5952016A (en) | 1997-11-13 | 1999-09-14 | Gellert; Jobst Ulrich | Side gated injection molding apparatus with actuated manifold |
US6095790A (en) | 1998-03-27 | 2000-08-01 | Mold-Masters Limited | Injection molding cylindrical manifold insert and method |
US6230384B1 (en) | 1998-03-27 | 2001-05-15 | Mold-Masters Limited | Method of making an injection molding cylindrical manifold insert |
US6305923B1 (en) | 1998-06-12 | 2001-10-23 | Husky Injection Molding Systems Ltd. | Molding system using film heaters and/or sensors |
EP0995574A1 (en) | 1998-10-20 | 2000-04-26 | Incoe International, Inc. | Nozzles for injection moulding apparatus |
EP0995574B1 (en) | 1998-10-20 | 2003-05-14 | Incoe International, Inc. | Nozzles for injection moulding apparatus |
WO2000046008A1 (en) | 1999-02-04 | 2000-08-10 | Stern Christian R | Method for conducting heat in a nozzle |
EP1148985B1 (en) | 1999-02-04 | 2002-11-20 | Christian René Stern | Nozzle for injection moulding of plastics |
US6447283B1 (en) | 1999-06-01 | 2002-09-10 | Jobst Ulrich Gellert | Injection molding heater with melt bore therethrough |
WO2001015884A3 (en) | 1999-08-27 | 2001-05-17 | Boekel Franciscus Antonius Joz | Injection-moulding device |
WO2001015884A2 (en) | 1999-08-27 | 2001-03-08 | Boekel Franciscus Antonius Joz | Injection-moulding device |
US6712597B1 (en) | 1999-08-27 | 2004-03-30 | Franciscus Antonius Jozef Van Boekel | Injection-moulding device |
EP1244541B1 (en) | 1999-08-27 | 2004-10-27 | Franciscus Antonius Jozef Van Boekel | Injection-moulding device |
US6789745B1 (en) | 1999-10-18 | 2004-09-14 | Mold-Masters Limited | Injection nozzle system |
US7137806B2 (en) | 2000-06-16 | 2006-11-21 | Mold-Masters Limited | Thermally balanced hot runner nozzle |
US6666675B2 (en) | 2001-01-30 | 2003-12-23 | Nissei Plastic Industrial Co., Ltd. | Injection molding nozzle for resin of highly temperature-dependent viscosity |
JP2002331552A (en) | 2001-05-09 | 2002-11-19 | Mitsubishi Materials Corp | Valve gate type die device |
US6921257B2 (en) | 2001-10-03 | 2005-07-26 | Mold-Masters Limited | Tip assembly having at least three components for hot runner nozzle |
US20040005380A1 (en) | 2002-02-04 | 2004-01-08 | Denis Babin | Thermal seal between manifold and nozzle |
WO2003080315A1 (en) | 2002-03-26 | 2003-10-02 | Honda Giken Kogyo Kabushiki Kaisha | Nozzle for use in hot runner mold |
JP2003276057A (en) | 2002-03-26 | 2003-09-30 | Honda Motor Co Ltd | In-mold nozzle mechanism for hot runner die |
DE10333206A1 (en) | 2002-09-13 | 2004-04-01 | Türk & Hillinger GmbH | Electric heater for heating an injection nozzle for plastics, is cylindrical, fits around injection nozzle and comprises inner and outer metal tubes with core fitted between them, around which heating wire is wound |
US20040101589A1 (en) | 2002-11-21 | 2004-05-27 | Mold-Masters Limited | Nozzle with thermally conductive device |
US7131833B2 (en) | 2002-11-21 | 2006-11-07 | Mold-Masters Ltd. | Nozzle with thermally conductive device |
US20040166194A1 (en) | 2003-02-20 | 2004-08-26 | Robert Trudeau | Heat dissipation device for and method of dissipating heat from a nozzle |
US7118703B2 (en) | 2003-02-20 | 2006-10-10 | Mold-Masters Limited | Heat dissipation device for and method of dissipating heat from a nozzle |
US20050019444A1 (en) | 2003-04-07 | 2005-01-27 | Mold-Masters Limited | Front-mountable, edge-gating nozzle |
EP1466715A1 (en) | 2003-04-07 | 2004-10-13 | Mold-Masters Limited | Hot runner nozzle with melt sealing |
US7306454B2 (en) | 2003-04-07 | 2007-12-11 | Mold-Masters Limited | Front-mountable injection molding nozzle |
US7252498B2 (en) | 2003-04-07 | 2007-08-07 | Mold-Masters Limited | Hot runner nozzle with melt sealing |
US7179081B2 (en) | 2003-04-07 | 2007-02-20 | Mold-Masters Limited | Front-mountable, edge-gating nozzle |
US20040197437A1 (en) | 2003-04-07 | 2004-10-07 | Mold-Masters Limited | Hot runner nozzle with melt sealing |
JP2005132026A (en) | 2003-10-31 | 2005-05-26 | Seiki Corp | Hot runner nozzle and hot runner nozzle unit |
US7121820B2 (en) | 2003-11-11 | 2006-10-17 | Plastic Engineering & Technical Services, Inc. | Valve gate assembly |
US20050100625A1 (en) | 2003-11-11 | 2005-05-12 | Tooman Patrick A. | Valve gate assembly |
US20050147713A1 (en) | 2004-01-06 | 2005-07-07 | Hans Hagelstein | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem |
US20050226956A1 (en) | 2004-04-07 | 2005-10-13 | Jonathon Fischer | Nozzle having a nozzle body with heated and unheated nozzle body segments |
US20050225000A1 (en) | 2004-04-07 | 2005-10-13 | Mold-Masters Limited | Modular injection nozzle having a thermal barrier |
US7462030B2 (en) | 2004-04-07 | 2008-12-09 | Mold-Masters (2007) Limited | Nozzle having a nozzle body with heated and unheated nozzle body segments |
KR20060032979A (en) | 2006-03-27 | 2006-04-18 | 허남욱 | Hot runner valve nozzle for molding plastics having double bodies adjusting length |
Non-Patent Citations (13)
Title |
---|
"AuBenbeheizte HeiBkanalduse, 230 V. fur schnelle Farbwechsel (with translation)", Ewikon Brochure, Oct. 2000. |
"Automotive Hotrunners", Mold Hot Runners Solutions, Inc. Product Information, Jul. 2002. |
"HPS III-NV Valve Gate Systems", Ewikon Brochure Jun. , 2001. |
"PSG Brochure", Date Unknown. |
Lohl, R., "Standardisiertas Schmelzeleitsystem fur Grobwerkzeuge", Plastverarbeiter 38 Jahrgang 1987. |
Mold Hot Runner Solutions Product Information entitled "Automotive Hotrunners," Mold Hot Runner Solutions, Inc., Jul. 2002. |
U.S. Appl. No. 10,819,165, filed Apr. 7, 2004, Sicila et al. |
U.S. Appl. No. 10/819,267, Apr. 7, 2004, Olaru. |
U.S. Appl. No. 60/460,417, filed Apr. 7, 2003, Olaru. * |
U.S. Appl. No. 60/460,418, filed Apr. 7, 2003, Sicilia et al. |
U.S. Appl. No. 60/468,973, filed May 9, 2003, Olaru. |
U.S. Appl. No. 60/559,976, filed Apr. 7, 2004, Tabassi. |
U.S. Appl. No. 60/559,977, filed Apr. 7, 2004, Fischer et al. |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130313751A1 (en) * | 2011-02-03 | 2013-11-28 | Risilux | Injection molding apparatus for manufacturing hollow objects, in particular plastic preforms, resp. containers and method therefor |
US10005250B2 (en) * | 2011-02-03 | 2018-06-26 | Resilux | Injection molding apparatus for manufacturing hollow objects, in particular plastic preforms, resp. containers and method therefor |
US9649800B2 (en) | 2014-06-25 | 2017-05-16 | Otto Männer Innovation GmbH | Modular side gating nozzle and mold |
Also Published As
Publication number | Publication date |
---|---|
DE102004001665B4 (en) | 2014-07-10 |
CN1636696A (en) | 2005-07-13 |
CA2455514A1 (en) | 2005-07-06 |
US7160100B2 (en) | 2007-01-09 |
US20050147713A1 (en) | 2005-07-07 |
ITTO20040593A1 (en) | 2004-12-09 |
CA2455514C (en) | 2011-11-29 |
DE102004001665A1 (en) | 2005-08-04 |
CN100532058C (en) | 2009-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
USRE41536E1 (en) | Injection molding apparatus having an elongated nozzle incorporating multiple nozzle bodies in tandem | |
US7462030B2 (en) | Nozzle having a nozzle body with heated and unheated nozzle body segments | |
EP2174767B1 (en) | Injection molding valve gated hot runner nozzle | |
US6945768B2 (en) | Gap seal between a nozzle and a mold component in an injection molding apparatus | |
US7465165B2 (en) | Configurable manifold | |
US7559760B2 (en) | Modular injection nozzle having a thermal barrier | |
US6962492B2 (en) | Gap seal between nozzle components | |
US6921259B2 (en) | Valve pin guide for a valve-gated nozzle | |
CA2616514C (en) | Valve for coinjection molding apparatus | |
EP1806218B1 (en) | Valve-gated injection molding apparatus for side gating | |
EP1578583A1 (en) | Injection molding nozzle | |
US7320590B2 (en) | Manifold plug for an injection molding apparatus | |
EP1289731B1 (en) | Sealing of the interface between two channels in an apparatus for injecting plastic material | |
EP1961548B1 (en) | Hot runner nozzle with melt sealing | |
EP1436133B1 (en) | Gap seal between a nozzle and a mold component in a hot-runner assembly for an injection molding apparatus | |
EP1584442B1 (en) | Nozzle having a nozzle body with heated and unheated nozzle body segments | |
EP2101978B1 (en) | Injection molding apparatus | |
US20060078644A1 (en) | Injection molding apparatus with a melt channel in valve pin | |
CA2405879C (en) | Gap seal between nozzle components | |
EP1584443A1 (en) | Nozzle having a nozzle body with heated and unheated nozzle body segments |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Fee payment |
Year of fee payment: 8 |
|
AS | Assignment |
Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT, WISCON Free format text: SUPPLEMENTAL SECURITY AGREEMENT;ASSIGNOR:MOLD-MASTERS (2007) LIMITED;REEL/FRAME:034013/0738 Effective date: 20141017 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553) Year of fee payment: 12 |