DE717122C - Method and device for the production of molded bodies from plastic masses, in particular hardenable synthetic resins - Google Patents
Method and device for the production of molded bodies from plastic masses, in particular hardenable synthetic resinsInfo
- Publication number
- DE717122C DE717122C DES136258D DES0136258D DE717122C DE 717122 C DE717122 C DE 717122C DE S136258 D DES136258 D DE S136258D DE S0136258 D DES0136258 D DE S0136258D DE 717122 C DE717122 C DE 717122C
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- molds
- synthetic resins
- mold
- space
- 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.)
- Expired
Links
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
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
Description
Verfahren und Vorrichtung zum Herstellen von Formkörpern aus plastischen Massen, insbesondere härtbaren Kunstharzen Es sind Vorrichtungen zur Herstellung von Formkörpern aus plastischen Massen, insbesondere härtbaren Kunstharzen. in fortlaufendem Arbeitsgang bekannt, bei denen eine Mehrzahl von fortlaufend bewegten Formen Verxvendung finden. Bei diesen bekannten Vorrichtungen wird die Masse in den Formraum eingefüllt, und die Formen werden durch Preßstempel geschlossen. die mit Hilfe einer Kurvenbahn während der Fortbewegung der Formen eingedrückt werden. Der Preßdruck wird dabei mit Hilfe der Kurvenbahn währund des ganzen Arbeitsspieles ausgeübt bzw. aufrechterhalten. Bei anderen ähnlichen Vorrichtungen werden die Formen unter Zwischenschaltung von Kraftspeichern von Trägern gehalten. die mechanisch verriegelt werden. Die Preßstempel der einzelnen Formen werden dabei durch besondere Einrichtungen und Führungen nacheinander angehoben, so daß die Formen zum Füllen freigegeben werden. dann heruntergepreßt und in dieser Stellung unter Druck bis zur Erhärtung des zu formenden Gegenstandes festgehalten. Diese bekannten Vorrichtungen sind infolge der vielen Teile, die mit den Formen umlaufen müssen äußerst umständlich.Method and device for producing molded bodies from plastic Masses, especially curable synthetic resins There are devices for production of molded bodies made of plastic masses, in particular curable synthetic resins. in ongoing Known operation in which a plurality of continuously moving forms Verxvendung Find. In these known devices, the mass is poured into the mold space, and the molds are closed by rams. with the help of a curved path indented while the molds are moving. The pressure is thereby exercised or maintained with the help of the cam track during the entire work cycle. In other similar devices, the shapes are made with the interposition of Energy storage held by carriers. which are mechanically locked. The press ram the individual forms are thereby successively through special facilities and guided tours raised so that the forms are released for filling. then pressed down and in this position under pressure until the object to be shaped has hardened held. These known devices are due to the many parts that with the molds have to be extremely cumbersome.
Gemäß der Erfindung ist eine wesentliche Vereinfachung solcher Vorrichtungen zur Herstellung von Formkörpern aus plastischen Massen. insbesondere härtbaren Kunstharzen, in fortlaufendem Arbeitsgang unter Verwendung einer Mehrzahl von fortlaufend bewegten Formen durch Anwendung des an sich bekannten Spritzverfahrens zu erzielen. Die Erfindung besteht darin. daß die Firmen die einen in bekannter Weise mit dem Formen raum durch eine Düse in Verbindung stehellden Füllraum zur Aufnahme der Masse haben. in regelmäßiger Folge unter eine or@sfest@ Vorrichtung gebracht werden, durch die Klasse unter Druck, aus dem Füllraum durch die Düse in den Formraum gespritzt wird, worauf die Formen druckentlastet weitergeführt und zwecks Aushärtung der Körper erwärmt bzw. gekühlt werden. According to the invention is a substantial simplification of such devices for the production of moldings from plastic masses. especially curable synthetic resins, in continuous operation using a plurality of continuously moved To achieve shapes by using the injection process known per se. The invention consists in it. that the companies some in a familiar way with the Form space through a nozzle in connection with the filling space for receiving the mass to have. be brought under an or @ sfest @ device in regular succession the class under pressure, injected from the filling chamber through the nozzle into the molding chamber whereupon the molds are relieved of pressure and continued for the purpose of hardening the body be heated or cooled.
Zur Förderung der Formen können verschiedene Mittel, wie Förderbänder, Förderketten, dienen. Vorteilhaft ist z. B. ein Rundtisch. auf den die Formen aufgesetzt werden, die an anderer Stelle für die Pressung vorbereitet und nach erfolgter Pressung entleert und gereinigt werden. Various means can be used to convey the molds, such as conveyor belts, Conveyor chains, serve. Is advantageous z. B. a rotary table. on which the forms are placed prepared for pressing elsewhere and after pressing emptied and cleaned.
In der Zeichnung ist beispielsweise ein Vorrichtung zur Durchführung des Verfahrens gemäß der Erfindung dargestellt. Diese Vorrichtung besteht aus einem um eine lotr@ch@@ Achse drehbaren Tisch 1. auf dem die Formen 2 angeordnet werden. und einer ortsfesten Preßvorrichtung 3. Der Tisch 1 wird absatzweise gedreht. so daß die Formen 2 der Reihe nach unter die Preßvorrichtung 3 gelangen und unter dieser so lange verbleiben, bis die in den Füllraum der Form eingefüllte Masse in den Formraum eingespritzt ist. Anschließend wandern die Formen bei Weiterdrehung des Tisches druckentlastet durch einen Kanal 4, in dem die Aushärtung der in der Form befindlichen Körper erfolgt und der zu diesem Zweck, je nach dem ob es sich um härtbare oder thermoplastische Stoffe handelt, geheizt bzw. gekühlt wird. Nach Verlassen des Kanals wird die Form mit dem ausgehärteten Körper von dem Tischs entfernt und durch eine inzwischen vorbereitete neue Form ersetzt. In the drawing, for example, is a device for implementation of the method according to the invention. This device consists of one around a lotr @ ch @@ axis rotatable table 1. on which the molds 2 are arranged. and a stationary press device 3. The table 1 is rotated intermittently. so that the forms 2 get in sequence under the pressing device 3 and under this Remain until the mass filled into the filling space of the mold enters the mold space is injected. The shapes then move as the table continues to rotate relieved of pressure through a channel 4, in which the hardening of the in the mold Body is made and made for this purpose, depending on whether it is hardenable or thermoplastic materials are handled, heated or cooled. After leaving the channel the mold with the hardened body is removed from the table and replaced by a meanwhile prepared new form replaced.
Die Formen selbst sind mehrteilig, vorzugsweise zweiteilig, und haben neben dem eigentiichen Formraum 5 einen mit diesem durch eine Düse 6 in Verbindung stehenden Füllraum zur Aufnahme der Rohmasse. Die Formen müssen während des Füllens und des Aushärtens fest verschlossen bleiben. Das Zusammenhalten der Formteile kann durch besondere Maßnahmen, wie Verschraubungen. The forms themselves are in several parts, preferably in two parts, and have in addition to the actual mold space 5, a nozzle 6 communicates with it standing filling space for receiving the raw material. The shapes need to be filled while filling and remain tightly closed while it cures. The holding together of the molded parts can through special measures, such as screw connections.
Keile usw., an ihnen selbst bewirkt werden, es kann aber auch durch entsprechende Aus bildung des Tisches 1 bzw. durch an ihm vorgesehene Klauen 8 o. dgl., in die die Formen eingesetzt werden, erfolgen.Wedges, etc., can be caused on themselves, but it can also be done by From the corresponding formation of the table 1 or by claws 8 o provided on it. Like. In which the molds are used, take place.
Jede Form wird nach dem Einfüllen der Rohmasse in den Füllraum mit einem eigenen Preßstempel 9 versehen, der durch die Preßvorrichtung 3 in den Füllraum eingedrückt wird und dadurch das Einspritzen der Masse in den Formraum bewirkt. Die Anordnung ist dabei so getroffen, daß der Preßstempel 9 in seiner Endlage die Düse 6 verriegelt, so daß die Form bereits vor dem Aushärten des Gegenstandes vom Druck entlastet werden kann. Each shape is added to the filling space after the raw mixture has been filled provided its own ram 9, which is through the pressing device 3 in the filling space is pressed in, thereby causing the mass to be injected into the mold space. The arrangement is made so that the ram 9 in its end position Nozzle 6 locked, so that the form before the hardening of the object from Pressure can be relieved.
Es ist zweckmäßig, die Formen so auszubii den, daß der Füllraum und die Düse in der Trennebene der Form liegt, so daß nach dem Öffnen der Formen der geformte Körper und der Preßstempel leicht entfernt und die Forinteile nach Herausnehmen des fertig gestellten Körpers leicht gereinigt werden können. It is useful to train the forms so that the filling space and the nozzle lies in the parting plane of the mold, so that after opening the molds the molded body and the ram easily removed and the forin parts after taking them out of the finished body can be easily cleaned.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES136258D DE717122C (en) | 1939-03-11 | 1939-03-11 | Method and device for the production of molded bodies from plastic masses, in particular hardenable synthetic resins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES136258D DE717122C (en) | 1939-03-11 | 1939-03-11 | Method and device for the production of molded bodies from plastic masses, in particular hardenable synthetic resins |
Publications (1)
Publication Number | Publication Date |
---|---|
DE717122C true DE717122C (en) | 1942-02-06 |
Family
ID=7540257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES136258D Expired DE717122C (en) | 1939-03-11 | 1939-03-11 | Method and device for the production of molded bodies from plastic masses, in particular hardenable synthetic resins |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE717122C (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE858311C (en) * | 1942-06-09 | 1952-12-04 | Busch Jaeger Luedenscheider Me | Tool for pressing insulating molded parts using the transfer molding process on tabletop presses |
DE1063370B (en) * | 1955-01-28 | 1959-08-13 | Fabrication D Objets Moules S | Injection molding machine for thermoplastics |
DE1063369B (en) * | 1951-10-05 | 1959-08-13 | Dunlop Rubber Co | Injection molding machine with several injection molding units arranged next to one another |
DE1073195B (en) * | 1960-01-14 | N. S. F. Nürnberger Schraubenfabrik und Elektrowerk G.m.b.H., Nürnberg | Injection molding machine for thermoplastics | |
DE1080297B (en) * | 1953-03-12 | 1960-04-21 | Tuboplast Sa | Injection mold for injecting tube heads made of thermoplastic onto tube shells made of the same material |
DE1100267B (en) * | 1953-06-04 | 1961-02-23 | Licentia Gmbh | Press form that can be mechanically locked with the interposition of force accumulators |
DE1136819B (en) * | 1955-06-24 | 1962-09-20 | Roland Wucher | Injection molding machine for non-metallic plastic materials |
DE1150799B (en) * | 1958-12-02 | 1963-06-27 | Funck Kg Dr Ing | Injection molding machine for processing thermoplastics |
DE1180926B (en) * | 1956-09-29 | 1964-11-05 | Siemens Ag | Device for filling casting molds with casting resin and other pourable insulating compounds |
DE1254858B (en) * | 1960-01-07 | 1967-11-23 | Licentia Gmbh | Method and injection molding machine for the production of a foam-insulated cool container |
DE1290706B (en) * | 1963-11-15 | 1969-03-13 | Ind Lemm & Co Gmbh | Mold for pressing objects which, while maintaining a pressure, change into the solid state for a long time, and press for actuating the mold |
WO1988004226A1 (en) * | 1986-12-02 | 1988-06-16 | Solomat Partners L.P. | Method and plant for fabricating a product by injecting material into a mold with treatment of the injected material |
US5254298A (en) * | 1986-12-02 | 1993-10-19 | Solomat Partners, L.P. | Plastic molding process with preconditioning and heat-treating of mold and plastic before rheological transformation |
WO1997039870A1 (en) * | 1996-04-25 | 1997-10-30 | Hans Lothar Berghoff | Injection molding apparatus and method |
-
1939
- 1939-03-11 DE DES136258D patent/DE717122C/en not_active Expired
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073195B (en) * | 1960-01-14 | N. S. F. Nürnberger Schraubenfabrik und Elektrowerk G.m.b.H., Nürnberg | Injection molding machine for thermoplastics | |
DE858311C (en) * | 1942-06-09 | 1952-12-04 | Busch Jaeger Luedenscheider Me | Tool for pressing insulating molded parts using the transfer molding process on tabletop presses |
DE1063369B (en) * | 1951-10-05 | 1959-08-13 | Dunlop Rubber Co | Injection molding machine with several injection molding units arranged next to one another |
DE1080297B (en) * | 1953-03-12 | 1960-04-21 | Tuboplast Sa | Injection mold for injecting tube heads made of thermoplastic onto tube shells made of the same material |
DE1100267B (en) * | 1953-06-04 | 1961-02-23 | Licentia Gmbh | Press form that can be mechanically locked with the interposition of force accumulators |
DE1063370B (en) * | 1955-01-28 | 1959-08-13 | Fabrication D Objets Moules S | Injection molding machine for thermoplastics |
DE1136819B (en) * | 1955-06-24 | 1962-09-20 | Roland Wucher | Injection molding machine for non-metallic plastic materials |
DE1180926B (en) * | 1956-09-29 | 1964-11-05 | Siemens Ag | Device for filling casting molds with casting resin and other pourable insulating compounds |
DE1150799B (en) * | 1958-12-02 | 1963-06-27 | Funck Kg Dr Ing | Injection molding machine for processing thermoplastics |
DE1254858B (en) * | 1960-01-07 | 1967-11-23 | Licentia Gmbh | Method and injection molding machine for the production of a foam-insulated cool container |
DE1290706B (en) * | 1963-11-15 | 1969-03-13 | Ind Lemm & Co Gmbh | Mold for pressing objects which, while maintaining a pressure, change into the solid state for a long time, and press for actuating the mold |
WO1988004226A1 (en) * | 1986-12-02 | 1988-06-16 | Solomat Partners L.P. | Method and plant for fabricating a product by injecting material into a mold with treatment of the injected material |
EP0273830A2 (en) * | 1986-12-02 | 1988-07-06 | Solomat Partners L.P. | Process and device for producing an article by injection of material into a mould together with treatment of the injeced material |
EP0273830A3 (en) * | 1986-12-02 | 1988-07-27 | Solomat S.A. Societe Dite: | Process and device for producing an article by injection of material into a mould together with treatment of the injeced material |
US5254298A (en) * | 1986-12-02 | 1993-10-19 | Solomat Partners, L.P. | Plastic molding process with preconditioning and heat-treating of mold and plastic before rheological transformation |
WO1997039870A1 (en) * | 1996-04-25 | 1997-10-30 | Hans Lothar Berghoff | Injection molding apparatus and method |
US6461558B1 (en) | 1996-04-25 | 2002-10-08 | Fastech System(S) Pte Ltd. | Injection molding apparatus and method |
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