DE19518110C1 - Melt transfer line for coupling two or more injection moulding machines - Google Patents
Melt transfer line for coupling two or more injection moulding machinesInfo
- Publication number
- DE19518110C1 DE19518110C1 DE1995118110 DE19518110A DE19518110C1 DE 19518110 C1 DE19518110 C1 DE 19518110C1 DE 1995118110 DE1995118110 DE 1995118110 DE 19518110 A DE19518110 A DE 19518110A DE 19518110 C1 DE19518110 C1 DE 19518110C1
- Authority
- DE
- Germany
- Prior art keywords
- injection molding
- transfer line
- coupling
- melt
- molding machines
- 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 - Fee Related
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 29
- 230000008878 coupling Effects 0.000 title claims description 7
- 238000010168 coupling process Methods 0.000 title claims description 7
- 238000005859 coupling reaction Methods 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 3
- 239000000155 melt Substances 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000000306 component Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000008358 core component Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
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
- B29C45/13—Injection moulding apparatus using two or more injection units co-operating with a single mould
-
- 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
-
- 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
- B29C45/20—Injection 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Häufig werden zum Beispiel in der Spielzeugindustrie mehrfarbige Spritzgußteile hergestellt, ein Beispiel für die Mehrfarbigkeit sind auch die Rückleuchten von Kraftfahrzeugen oder es wird ein thermoplastisches Elastomer zur Abdichtung an ein steifes Thermoplastteil angespritzt. Mit zwei Komponenten, wobei die Kernkomponente eventuell mit Treibmittel versehen ist, arbeitet auch das Sandwich-Spritzgußverfahren. Für derartige Spritzgußteile stehen sogenannte 2-K-Spritzgußmaschinen ("K" steht für Komponenten) zur Verfügung. Im wesentlichen bestehen solche Spritzgußmaschinen aus einem normalen Werkzeug-Zuhalteteil und zwei unterschiedlich angeordneten Plastifiziereinheiten.For example, in the toy industry, multicolored colors are often used Injection molded parts produced, an example of the multi-color are also the taillights of motor vehicles or it becomes a thermoplastic elastomer for sealing to a rigid thermoplastic part molded. With two components, the core component possibly with propellant, that also works Sandwich injection molding process. Stand for such injection molded parts so-called 2-component injection molding machines ("K" stands for components) to disposal. Such injection molding machines essentially exist from a normal tool holding part and two different ones arranged plasticizing units.
Sind laufend Aufträge für den 2-Komponenten-Spritzguß zu bedienen, so ist die Anschaffung von 2-K-Spritzgußmaschinen sicher sinnvoll. Fallen solche Aufträge jedoch nur zeitweilig an, werden die 2-K-Maschinen nicht ihrem Zweck entsprechend ausgenutzt. Im Fall von nur sporadischen 2-Komponenten-Aufträgen bietet sich eine billige Alternative nach der DE 39 37 936 A1 an.If there are ongoing orders for 2-component injection molding, so the purchase of 2-component injection molding machines is certainly sensible. However, if such orders are only received temporarily, the 2-component machines were not used for their intended purpose. in the In the case of only sporadic 2-component orders, this is an option a cheap alternative according to DE 39 37 936 A1.
In diesem Patent wird die Möglichkeit der Schmelzeverteilung mit Hilfe von begleitbeheizten, gut wärmeisolierten und handelsüblichen Rohren und Armaturen in Spritzgußwerkzeugen mit mehreren Anschnitten beschrieben.This patent discusses the possibility of melt distribution with the help of heated, well insulated and commercially available Pipes and fittings in injection molds with several Bleeds described.
Aufgabe der Erfindung ist es, diese Möglichkeit auch zur Koppelung der Plastifiziereinheiten von zwei oder mehr Spritzgußmaschinen zu nutzen. Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst.The object of the invention is this possibility also for coupling the plasticizing units of two or more To use injection molding machines. This task is due to the characteristics of claim 1 solved.
Nachfolgend wird die Erfindung anhand von Ausführungsbeispielen näher erläutert. Vom Plastifizierzylinder einer kleinen Spritzgußmaschine (Zuhaltekraft 500 kN) wird eine mit elektrischen Widerstands-Heizschnüren begleitbeheizte und mit einem gewebten Glasfaserband wärmeisolierte 9,50 m (!) lange Rohrleitung - Außendurchmesser 10 mm, Innendurchmesser 5 mm - zu einem in einer größeren Spritzgußmaschine (1500 kN Zuhaltekraft) befindlichen Werkzeug geführt. Die Rohrleitung endete in einer thermischen Verschlußdüse als Anguß. Die Schmelze der großen Spritzgußmaschine wurde über eine kurze Rohrleitung (ca. 0,3 m) zu einer zweiten tehermischen Verschlußdüse für das gemeinsame Formnest geleitet. Nach dem Schließen des Werkzeugs wird zuerst über die 9,50 m lange Rohrleitung ein Teilvolumen an weiß eingefärbter Schmelze in das Formnest gefördert, danach die Verschlußdüse geschlossen und die blaue Schmelze der großen Spritzgußmaschine eingespritzt. Mit dem Einspritz- und Nachdruck der großen Spritzgußmaschine wird das Formnestvolumen verdichtet.The invention is described below with reference to Exemplary embodiments explained in more detail. From the plasticizing cylinder of a small injection molding machine (Locking force 500 kN) is one with electrical Resistance heating cords are heated and woven with a Glass fiber tape heat-insulated 9.50 m (!) Long pipeline - Outside diameter 10 mm, inside diameter 5 mm - to one in a larger injection molding machine (1500 kN locking force) located tool. The pipeline ended in one thermal sealing nozzle as sprue. The melt of the big ones Injection molding machine was over a short pipe (about 0.3 m) to a second thermal closure nozzle for the common Form nest headed. After closing the tool first use the 9.50 m long pipeline to create a partial volume white colored melt conveyed into the mold cavity, then the Locking nozzle closed and the blue melt of the big one Injection molding machine injected. With the injection and holding pressure the large injection molding machine becomes the mold cavity volume condensed.
Die Steuerung funktioniert in folgender Weise: Durch das Schließen des Werkzeugs wird ein Näherungsschalter aktiviert, der über ein einstellbares Zeitverzögerungsrelais die Einspritzbewegung der Schnecke der kleinen Spritzgußmaschine einschaltete. Nach dem Einspritzen wird die Schnecke automatisch auf Plastifizieren umgeschaltet. Das Einspritzen der großen Maschine kann beliebig zugeschaltet werden. Alle Möglichkeiten der Steuerung der beiden Maschinen können genutzt werden. So wird die Plastifizierung der kleinen Maschine unter hohem Staudruck vorgenommen, um die Schmelze in der langen Rohrleitung vorzuspannen. The control works in the following way: When the tool is closed, a proximity switch is activated, the injection movement via an adjustable time delay relay the screw of the small injection molding machine switched on. After injection, the screw is automatically plasticized switched. The injection of the big machine can can be switched on as required. All control options of the two machines can be used. So is the plasticization the small machine under high back pressure, to pretension the melt in the long pipe.
Für die industrielle Produktion werden die Maschinen nebeneinander gestellt und die Transferleitung verkürzt sich auf ca. 1 m. Natürlich können auch eine dritte oder beliebig viele Spritzgußmaschinen gekoppelt werden. Sollte zum Beispiel das Schmelzevolumen einer Spritzgußmaschine nicht ausreichen, kann eine zweite Maschine zugeschaltet werden, wenn eine Bindenaht toleriert werden kann. Auch geschäumtes oder ungeschäumtes Rezyklat kann als Kernkomponente durch eine zweite Maschine eingespritzt werden. Eventuell können in der Zuhaltung auch zwei oder mehr Werkzeuge eingebaut werden, die von den zusätzlichen Maschinen über Transferleitungen gefüllt werden.For industrial production, the Machines placed side by side and the transfer line shortened at about 1 m. Of course, a third or any number of injection molding machines can be coupled. Should be Example the melt volume of an injection molding machine is not sufficient, a second machine can be switched on if a weld line can be tolerated. Also foamed or unfoamed Recyclate can be used as a core component through a second Machine are injected. Possibly can in the tumbler also two or more tools be built in by the additional machines Transfer lines are filled.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995118110 DE19518110C1 (en) | 1995-05-17 | 1995-05-17 | Melt transfer line for coupling two or more injection moulding machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995118110 DE19518110C1 (en) | 1995-05-17 | 1995-05-17 | Melt transfer line for coupling two or more injection moulding machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19518110C1 true DE19518110C1 (en) | 1996-10-10 |
Family
ID=7762157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1995118110 Expired - Fee Related DE19518110C1 (en) | 1995-05-17 | 1995-05-17 | Melt transfer line for coupling two or more injection moulding machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19518110C1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3937936A1 (en) * | 1989-11-15 | 1991-05-16 | Zimmermann Wolfgang | Free space in injection moulding machine - to separate melt distribution system from cold mould nest |
-
1995
- 1995-05-17 DE DE1995118110 patent/DE19518110C1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3937936A1 (en) * | 1989-11-15 | 1991-05-16 | Zimmermann Wolfgang | Free space in injection moulding machine - to separate melt distribution system from cold mould nest |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |