CA2643346A1 - Injection molding apparatus with melt mixer in manifold - Google Patents
Injection molding apparatus with melt mixer in manifold Download PDFInfo
- Publication number
- CA2643346A1 CA2643346A1 CA002643346A CA2643346A CA2643346A1 CA 2643346 A1 CA2643346 A1 CA 2643346A1 CA 002643346 A CA002643346 A CA 002643346A CA 2643346 A CA2643346 A CA 2643346A CA 2643346 A1 CA2643346 A1 CA 2643346A1
- Authority
- CA
- Canada
- Prior art keywords
- melt
- manifold
- passage
- injection molding
- sub
- 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.)
- Granted
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract 16
- 239000000155 melt Substances 0.000 claims abstract 33
- 239000000463 material Substances 0.000 claims abstract 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims 4
- 230000003068 static effect Effects 0.000 claims 2
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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
- B29C45/1607—Multi-way nozzles specially adapted therefor having at least three different ways
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
- B29C45/1646—Injecting parison-like articles
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
- B29C2045/1614—Multi-way nozzles specially adapted therefor side-by-side flow of materials in the same channel
-
- 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
- B29C45/2725—Manifolds
- B29C2045/273—Manifolds stacked manifolds
Abstract
A manifold assembly for an injection molding apparatus, comprising a first melt distribution manifold section defining a melt flow passage having an inlet and an outlet, and a sub-manifold section spaced apart from the first melt distribution manifold section and defining a sub-manifold melt passage having an inlet and an outlet. A melt link is disposed between and joins the first melt distribution manifold section and the sub-manifold section, the melt link defining a melt link passage having an inlet communicating with the outlet of the melt flow passage and an outlet communicating with the inlet of the sub-manifold melt passage. A melt mixer is positioned in the melt link passage. According to another aspect, an injection molding apparatus for co-injection molding comprising a manifold assembly defining first and second melt passages for delivering first and second materials from a melt source to an injection molding nozzle and a melt mixer positioned in at least one of the first and second melt passages.
Claims (14)
1. A manifold assembly for an injection molding apparatus, comprising:
a first melt distribution manifold section defining a melt flow passage having an inlet and an outlet;
a sub-manifold section spaced apart from the first melt distribution manifold section and defining a sub-manifold melt passage having an inlet and an outlet;
a melt link disposed between and joining the first melt distribution manifold section and the sub-manifold section, the melt link defining a melt link passage having an inlet communicating with the outlet of the melt flow passage and an outlet communicating with the inlet of the sub-manifold melt passage; and a melt mixer positioned in the melt link passage.
a first melt distribution manifold section defining a melt flow passage having an inlet and an outlet;
a sub-manifold section spaced apart from the first melt distribution manifold section and defining a sub-manifold melt passage having an inlet and an outlet;
a melt link disposed between and joining the first melt distribution manifold section and the sub-manifold section, the melt link defining a melt link passage having an inlet communicating with the outlet of the melt flow passage and an outlet communicating with the inlet of the sub-manifold melt passage; and a melt mixer positioned in the melt link passage.
2. The manifold assembly of claim 1 wherein the melt mixer is a static mixer.
3. The manifold assembly of claim 1 or claim 2 wherein the melt link includes a first end that is received within a portion of the first melt distribution manifold section and a second end that is received within a portion of the sub-manifold section.
4. The manifold assembly of any one of claims 1 to 3 wherein the melt mixer is adapted for reducing an amount of acetaldehyde generated by PET
melt flow.
melt flow.
5. The manifold assembly of any one of claims 1 to 4 wherein the melt mixer is adapted for improving temperature uniformity in a melt flow through the manifold assembly.
6. The manifold assembly of any one of claims 1 to 5 wherein the first melt distribution manifold section defines a plurality of melt flow passages and the manifold assembly includes:
a plurality of further sub-manifold sections spaced apart from the first melt distribution manifold section, each of the further sub-manifold sections defining a respective further sub-manifold melt passage; and a plurality of further melt links, each of the further melt links being disposed between and joining the first melt distribution manifold section and a respective further sub-manifold section and defining a further melt link passage for passing melt flow from the first melt distribution manifold section to the respective further sub-manifold section; and a plurality of further melt mixers, each of the further melt mixers being positioned in a respective one of the further melt link passage.
a plurality of further sub-manifold sections spaced apart from the first melt distribution manifold section, each of the further sub-manifold sections defining a respective further sub-manifold melt passage; and a plurality of further melt links, each of the further melt links being disposed between and joining the first melt distribution manifold section and a respective further sub-manifold section and defining a further melt link passage for passing melt flow from the first melt distribution manifold section to the respective further sub-manifold section; and a plurality of further melt mixers, each of the further melt mixers being positioned in a respective one of the further melt link passage.
7. An injection molding apparatus for co-injection molding comprising:
a manifold assembly defining first and second melt passages for delivering first and second materials from a melt source to an injection molding nozzle; and a melt mixer positioned in at least one of the first and second melt passages.
a manifold assembly defining first and second melt passages for delivering first and second materials from a melt source to an injection molding nozzle; and a melt mixer positioned in at least one of the first and second melt passages.
8. The injection molding apparatus of claim 7 wherein the manifold assembly includes front and rear melt distribution manifolds, the front melt distribution manifold defining the first melt passage and the rear melt distribution manifold defining the second melt passage.
9. The injection molding apparatus of claim 7 or 8 wherein the melt mixer is positioned in the first melt passage.
10. The injection molding apparatus of claim 9 wherein a further melt mixer is positioned in the second melt passage.
11. The injection molding apparatus of any one of claims 7 to 10 wherein the melt mixer is a static mixer.
12. The injection molding apparatus of any one of claims 7 to 11 wherein the melt mixer is adapted for reducing an amount of acetaldehyde generated by PET melt flow.
13. The injection molding apparatus of any one of claims 7 to 12 wherein the melt mixer is adapted for improving temperature uniformity in a melt flow through the manifold assembly.
14. The injection molding apparatus of any one of claims 7 to 13 wherein the manifold assembly includes:
a first melt distribution manifold section defining a first portion of the first melt passage;
a sub-manifold section spaced apart from the first melt distribution manifold section and defining a second portion of the first melt passage; and a melt link disposed between and joining the first melt distribution manifold section and the sub-manifold section, the melt link defining a melt link passage communication with each of the first portion and second portions of the first melt passage, the melt mixer being positioned in the melt link passage.
a first melt distribution manifold section defining a first portion of the first melt passage;
a sub-manifold section spaced apart from the first melt distribution manifold section and defining a second portion of the first melt passage; and a melt link disposed between and joining the first melt distribution manifold section and the sub-manifold section, the melt link defining a melt link passage communication with each of the first portion and second portions of the first melt passage, the melt mixer being positioned in the melt link passage.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/271,835 US6655945B1 (en) | 1999-03-18 | 1999-03-18 | Apparatus and method for multi-layer injection molding |
| US09/271,835 | 1999-03-22 | ||
| CA002367746A CA2367746C (en) | 1999-03-18 | 2000-03-17 | Apparatus and method for multi-layer injection molding |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002367746A Division CA2367746C (en) | 1999-03-18 | 2000-03-17 | Apparatus and method for multi-layer injection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2643346A1 true CA2643346A1 (en) | 2000-09-21 |
| CA2643346C CA2643346C (en) | 2011-07-19 |
Family
ID=23037292
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002367746A Expired - Lifetime CA2367746C (en) | 1999-03-18 | 2000-03-17 | Apparatus and method for multi-layer injection molding |
| CA2643346A Expired - Lifetime CA2643346C (en) | 1999-03-18 | 2000-03-17 | Injection molding apparatus with melt mixer in manifold |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002367746A Expired - Lifetime CA2367746C (en) | 1999-03-18 | 2000-03-17 | Apparatus and method for multi-layer injection molding |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US6655945B1 (en) |
| EP (1) | EP1163096B1 (en) |
| JP (2) | JP4889862B2 (en) |
| AU (1) | AU2935600A (en) |
| CA (2) | CA2367746C (en) |
| DE (1) | DE60006653T2 (en) |
| WO (1) | WO2000054956A1 (en) |
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| CN1741891B (en) * | 2003-01-23 | 2010-06-09 | 东洋制罐株式会社 | Method and device for forming composite synthetic resin material |
| US7210917B2 (en) * | 2003-12-30 | 2007-05-01 | Mold-Masters Limited | Two position double injection molding apparatus |
| US7261534B2 (en) * | 2004-01-31 | 2007-08-28 | International Automotive Components Group North America, Inc. | Dual use molding tool |
| JP4442325B2 (en) | 2004-05-31 | 2010-03-31 | 東洋製罐株式会社 | Method for producing multilayer structure |
| AU2006241946B2 (en) * | 2005-04-28 | 2011-04-14 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle having a gradation pattern, and process for injection molding the preform for use in such a bottle |
| KR100746555B1 (en) * | 2005-11-04 | 2007-08-09 | 허남욱 | Extension Manifold buffing thermal Expansion for Molding Plastics |
| KR100932848B1 (en) * | 2006-02-13 | 2009-12-21 | 주식회사 엘지화학 | Injection Molding Device with Shear Flow Generation |
| ATE464018T1 (en) * | 2007-11-28 | 2010-04-15 | Ivoclar Vivadent Ag | METHOD AND SYSTEM FOR PRODUCING DENTAL RESTORATIONS FROM CERAMIC |
| CN101607434B (en) * | 2009-07-16 | 2011-09-21 | 南烽精密机械（深圳）有限公司 | Nozzle position adjusting structure of hot runner as well as nozzle position adjusting method of hot runner nozzle and application thereof |
| JP5612954B2 (en) * | 2010-06-29 | 2014-10-22 | 株式会社吉野工業所 | Injection molded body and manufacturing method thereof |
| WO2012037682A2 (en) | 2010-09-21 | 2012-03-29 | Mold-Masters (2007) Limited | Coinjection hot runner injection molding system |
| US9498911B2 (en) | 2010-09-21 | 2016-11-22 | Mold-Masters (2007) Limited | Coinjection hot runner injection molding system |
| JP2012232463A (en) | 2011-04-28 | 2012-11-29 | Yoshino Kogyosho Co Ltd | Preform injection molding device, injection molding method, and synthetic resin bottle body |
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| JP2015016661A (en) * | 2013-07-12 | 2015-01-29 | 日精樹脂工業株式会社 | Hot runner nozzle, mold for molding of multi-layer molding using the hot runner nozzle, method of feeding molten resin into mold using hot runner nozzle and method of multi-layer molding using hot runner nozzle |
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| JP5910953B2 (en) * | 2015-03-05 | 2016-04-27 | 株式会社吉野工業所 | Preform injection molding method |
| KR20170029860A (en) * | 2015-09-08 | 2017-03-16 | 삼성전자주식회사 | Case for mobile phone and injection mold for the same |
| US11298861B2 (en) | 2017-11-21 | 2022-04-12 | Silgan Specialty Packaging Llc | Multi-layer injection molded container |
| CN109732853B (en) * | 2018-12-19 | 2020-10-30 | 杭州娃哈哈精密机械有限公司 | Hot runner nozzle structure for three-layer material injection molding |
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-
1999
- 1999-03-18 US US09/271,835 patent/US6655945B1/en not_active Expired - Lifetime
- 1999-03-22 US US09/274,443 patent/US6648622B1/en not_active Expired - Lifetime
-
2000
- 2000-03-17 JP JP2000605012A patent/JP4889862B2/en not_active Expired - Fee Related
- 2000-03-17 CA CA002367746A patent/CA2367746C/en not_active Expired - Lifetime
- 2000-03-17 DE DE60006653T patent/DE60006653T2/en not_active Expired - Lifetime
- 2000-03-17 WO PCT/IB2000/000305 patent/WO2000054956A1/en active IP Right Grant
- 2000-03-17 AU AU29356/00A patent/AU2935600A/en not_active Abandoned
- 2000-03-17 EP EP00907894A patent/EP1163096B1/en not_active Expired - Lifetime
- 2000-03-17 CA CA2643346A patent/CA2643346C/en not_active Expired - Lifetime
- 2000-03-17 JP JP2000605013A patent/JP4545322B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE60006653D1 (en) | 2003-12-24 |
| WO2000054956A1 (en) | 2000-09-21 |
| CA2367746A1 (en) | 2000-09-21 |
| EP1163096B1 (en) | 2003-11-19 |
| US6648622B1 (en) | 2003-11-18 |
| AU2935600A (en) | 2000-10-04 |
| CA2643346C (en) | 2011-07-19 |
| US6655945B1 (en) | 2003-12-02 |
| JP4545322B2 (en) | 2010-09-15 |
| CA2367746C (en) | 2008-12-16 |
| EP1163096A1 (en) | 2001-12-19 |
| DE60006653T2 (en) | 2004-04-15 |
| JP2002538994A (en) | 2002-11-19 |
| JP4889862B2 (en) | 2012-03-07 |
| JP2002538993A (en) | 2002-11-19 |
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| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20200317 |