DE3228421A1 - Multi-cavity mould for plastics moulding compounds - Google Patents

Multi-cavity mould for plastics moulding compounds

Info

Publication number
DE3228421A1
DE3228421A1 DE19823228421 DE3228421A DE3228421A1 DE 3228421 A1 DE3228421 A1 DE 3228421A1 DE 19823228421 DE19823228421 DE 19823228421 DE 3228421 A DE3228421 A DE 3228421A DE 3228421 A1 DE3228421 A1 DE 3228421A1
Authority
DE
Germany
Prior art keywords
control slide
mold
plastics moulding
channel
mold cavities
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
Application number
DE19823228421
Other languages
German (de)
Other versions
DE3228421C2 (en
Inventor
Walter 4995 Stemwede Rossol
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF Polyurethanes GmbH
Original Assignee
Elastogran GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Elastogran GmbH filed Critical Elastogran GmbH
Priority to DE19823228421 priority Critical patent/DE3228421A1/en
Publication of DE3228421A1 publication Critical patent/DE3228421A1/en
Application granted granted Critical
Publication of DE3228421C2 publication Critical patent/DE3228421C2/de
Granted legal-status Critical Current

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
    • B29C45/17—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
    • B29C45/2703—Means for controlling the runner flow, e.g. runner switches, adjustable runners or gates
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/041—Feeding of the material to be moulded, e.g. into a mould cavity using filling or dispensing heads placed in closed moulds or in contact with mould walls
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0022—Multi-cavity moulds
    • 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
    • B29C2045/2683—Plurality of independent mould cavities in a single mould
    • B29C2045/2691—Plurality of independent mould cavities in a single mould sequentially filled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Multi-cavity mould for plastics moulding compounds, comprising two mould halves which are connected to each other so as to be movable and form a plurality of mould cavities (3), with a central sprue channel (2) for the mould cavities, which can be filled in succession by the plastics moulding compound by means of a control valve (5) which is mounted so as to be displaceable or rotatable in the sprue channel. <IMAGE>

Description

Mehrfachformwerkzeug für KunststofformmassenMultiple mold for plastic molding compounds

Die Erfindung bezieht sich auf ein Mehrfachformwerkzeug für Kunststofformmassen gemäß Oberbegriff des Patentanspruchs 1.The invention relates to a multiple molding tool for plastic molding compounds according to the preamble of claim 1.

Sei den bekannten Mehrfachformwerkzeugen werden alle Formhöhlungen gleichzeitig über einen zentralen Angiekanal und davon abzweigende Verteilerkanäle mit der Kunststoffformmasse gefüllt. Formhöhlungen mit unterschiedlichem Volumen wirken sich dabei auf die Qualität der Formteile ungünstig aus, da Unterschiede in der Länge der E-ieSwege und in den Füllzeiten bestehen. Dementsprechend wäre für Formteile mit reproduzlerbarem Gewicht und Qualität an den Arischnltten der Formhöhlungen bei vorgegebenen Füllmengen entsprechend vorgegebene Fließgeschwlndigkeiten notwendig.All mold cavities are known as multiple mold tools at the same time via a central pouring channel and distribution channels branching off from it filled with the plastic molding compound. Mold cavities with different volumes have an unfavorable effect on the quality of the molded parts because of differences consist in the length of the E-ieSwege and in the filling times. Would be accordingly for molded parts with reproducible weight and quality on the Arischnltten of Mold cavities with given filling quantities according to given flow velocities necessary.

Die bisher dafür vorgesehenen Drosseln In den einzelnen Anschnittbereichen brachten Jedoch keine zufriedenstellenden Ergebnisse.The chokes previously provided for this in the individual gate areas However, did not produce satisfactory results.

Der Erfindung liegt somit die Aufgabe zugrunde, be einem Mehrfachformwerkzeug für Kunststoffortnmassen der eingangs geschilderten Art konstruktive Maßnahmen zu treffen, durch die ein reproduzierbares Füllen von Formhöhlungen untersoniedllcher Volumina möglich ist.The invention is therefore based on the object of a multiple molding tool for Kunststoffortnmassen of the type described above to constructive measures meet, through which a reproducible filling of mold cavities is different Volumes is possible.

Gelöst wird die gestellte Aufgabe durch die im Kennzeichnungstell des Hauptanspruchs gegebenen Merkmale.The task posed is solved by the marking position of the main claim given features.

Einzelheiten sowie Vorteile des erfindungsgemäßen Mehrfachformwerkzeuges sind anhand eines in der Zeichnung dargestellten Ausführungsbeispiels nachfolgend beschrieben.Details and advantages of the multiple molding tool according to the invention are based on an embodiment shown in the drawing described.

Das Mehrfachformwerkzeug besteht aus zwei voneinander trennbaren hälften, von dem in der Zeichnung eine Hälfte 1 dargestellt ist und in dessen Teilungsebene der AngieR-kanal 2 liegt. Die beiden Formhälften sind durch eine Schließeinheit beweglich miteinander verbunden und werden in der Schließstellung durch die Schließeinheit zusammengehalten (in der Zeichnung nicht zu sehen). In den Formhälften sind unterschiedlich große Formhöhlungen 3 gebildet, die über Verteilerkanäle 4 mit dem Angießkanal 2 verbunden sind.The multiple mold consists of two halves that can be separated from each other, half of which in the drawing is 1 is shown and in its The division level of the AngieR channel 2 is located. The two mold halves are through a clamping unit movably connected to one another and are in the closed position by the closing unit held together (not shown in the drawing). In the mold halves are different large mold cavities 3 are formed, which are connected to the sprue 2 via distribution channels 4 are connected.

Um die einzelnen Formhohlräume in einer bestimmten Reihenfolge nacheinander mit der Kunststofformmasse füllen zu können, ist im Angießkanal 2 ein Steuerschieber 5 mit seitlichen Öffnungen 6 verschiebbar oder drehbar gelager Die Öffnungen sind so angeordnet, daß sie durch axiales Verschieben oder Drehen des Steuerschiebers nacheinander mit den Ihnen zugeordneten Verteilerkanälen zur Deckung gebracht werden können. Zur Vermeidung von Durckspitzen Steuerschieber während des Umsteuerns von eie Verteilerkanal zum anderen ist die Anordnung der Öffnungen 6 oder der Verteilerkanäle 4 so getroffen, daß das Schliessen eines Verteilerkanals und das Öfnen des nachfolgenden mittels der Öffnungen überschneidend erfolgt.To the individual mold cavities in a certain order one after the other To be able to fill with the plastic molding compound, a control slide is in the pouring channel 2 5 with lateral openings 6 displaceable or rotatably mounted The openings are arranged so that they can be moved by axially moving or rotating the control slide are brought to coincide one after the other with the distribution channels assigned to them can. To avoid pressure peaks in the control spool while reversing from One distribution channel on the other hand is the arrangement of the openings 6 or the distribution channels 4 so that the closing of a distribution channel and the opening of the next takes place in an overlapping manner by means of the openings.

Der Steuerschieber 5 ist an einem ende 7 über einen feststehenden und teleskopartig in diesen ragenden Zulaufkanal 8 mit einem Mischkopf 11 verbunden, aus dem die Kunststofformmasse als @eaktionsgemisch zweier Kunststeffkomponenten austritt. Es ist vorteilhaft, den Zulaufkanal mit einem Drosselorgan 9 auszustatten, beispiehsweise aus einer exzentrisch gelagerten und In den Kanal schwenkbaren Seneibe, um die Strömungsgeschwindigkeit der Formmasse eInstellen zu können.The control slide 5 is at one end 7 via a fixed and connected telescopically in this protruding inlet channel 8 with a mixing head 11, from which the plastic molding compound is a reaction mixture of two plastic components exit. It is advantageous to equip the inlet channel with a throttle element 9, for example from an eccentrically mounted and swiveling disc in the channel, in order to be able to adjust the flow rate of the molding compound.

An seinem anderen Ende 10 greift ein Antrieb (in der Zeichnung nicht dargestellt) für die Verschiebe- oder Erehbewe- gungen an, der für Verschiebebewegungen vorzugsweise aus einem pneumatischen oder hydraulischen Arbeitszylinder besteht. Es können aber auch Drehantriebe wie Stellmotoren oder Nockenscheiben in Frage kommen. Zur Steuerung des zeitlichen Ablaufs und Bewegungshubes des Steuerschiebers steht der Antrieb mit einer Steuerelnrichtung in Verbinaung, wie sie für solche Zwecke im Fachhandel unter der Bezeichnung ölmengensteuerung zu Verfügung stehen. Durch die gesteuerte Bewegung des Steuerschiebers ist es möglich, Formwerkzeuge mit mehreren, unterschiedlich großen Formhöhlungen aus kontInuierlich laufenden Dosier- und Mischelnrlchtungen reproduzierbar mit der Formmasse in automatischer BetriebsweIse zu füllen.A drive engages at its other end 10 (not in the drawing shown) for the shifting or rotating movement that for Shifting movements preferably from a pneumatic or hydraulic working cylinder consists. However, rotary drives such as servomotors or cam disks can also be used in Question come. To control the timing and movement stroke of the control slide the drive is in connection with a control direction, as it is for such Purposes are available in specialist shops under the designation oil quantity control. The controlled movement of the control slide makes it possible to use molding tools with several, differently sized mold cavities from continuously running Dosing and mixing devices reproducible with the molding compound in automatic Filling operating procedures.

Zelchn.Zelchn.

Claims (3)

Patentansprüche Mehrfachformwerkzeug für Kunststofformmassen, bestehend aus zwei Formhälften, die zum Öffnen und Schliessen des Werkzeugs über Führungen beweglich iteinander verbunden sind und in der Schließstellung mehrere Formhöhlungen (3) sowie einen zentralen Angleßkanal (2) aufweisen, der über Verteilerkanäle (4) mit den Formhöhlungen verbunden ist, dadurch gekennzeichnet, daß im Angießkanal (2) ein Steuerschieber (5) mit seitlichen Öffnungen (6) aufgenommen ist, die durch axiales Verschieben oder Drehen des Steuerschiebers nacheinander mit den ihnen zugeordneten Verteilerkanälen (4) zur Deckung bringbar sind, und der Steuerschieber einerseits über einen feststehenden, teleskopartig in diesem angeordneten Zulaufkanal (8) mit einem Mischkopf (11) und andererseits mit einem Antrieb in Verbindung steht.Claims multiple molding tool for plastic molding compounds, consisting consisting of two mold halves, which are used to open and close the mold via guides are movably connected to one another and in the closed position several mold cavities (3) and a central Angleßkanal (2), which via distribution channels (4) is connected to the mold cavities, characterized in that in the sprue (2) a control slide (5) with lateral openings (6) is added, which through axial displacement or rotation of the control slide one after the other with their assigned Distribution channels (4) can be brought to cover, and the control slide on the one hand via a stationary, telescopically arranged inlet channel (8) in this a mixing head (11) and on the other hand is connected to a drive. 2. Mehrfachformwerkzeug nach Anspruch 1, dadurch gekennzeichnet, daß zur Vermeidung von Druckspitzen im Steuerschieber (5) während des Umsteuerns von einem Verteilerkanal (4) zum anderen eine Oberschneidung besteht. 2. Multiple mold according to claim 1, characterized in that that to avoid pressure peaks in the control slide (5) during the reversal there is an overlap from one distribution channel (4) to the other. 3. Mehrfachfornwerkzeug nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Zulaufkanal (8) mit einem Drosselorgan (9) ausgestattet ist. 3. Multiple forming tool according to claim 1 and 2, characterized in that that the inlet channel (8) is equipped with a throttle element (9).
DE19823228421 1982-07-30 1982-07-30 Multi-cavity mould for plastics moulding compounds Granted DE3228421A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823228421 DE3228421A1 (en) 1982-07-30 1982-07-30 Multi-cavity mould for plastics moulding compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823228421 DE3228421A1 (en) 1982-07-30 1982-07-30 Multi-cavity mould for plastics moulding compounds

Publications (2)

Publication Number Publication Date
DE3228421A1 true DE3228421A1 (en) 1984-02-02
DE3228421C2 DE3228421C2 (en) 1987-05-21

Family

ID=6169667

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823228421 Granted DE3228421A1 (en) 1982-07-30 1982-07-30 Multi-cavity mould for plastics moulding compounds

Country Status (1)

Country Link
DE (1) DE3228421A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004073950A1 (en) * 2003-02-22 2004-09-02 Merck Patent Gmbh Injection unit with a rotating valve for processing meltable materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008048740B4 (en) 2008-09-24 2018-03-01 Kraussmaffei Technologies Gmbh Sprue device for filling different mold cavities with a mixing head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004073950A1 (en) * 2003-02-22 2004-09-02 Merck Patent Gmbh Injection unit with a rotating valve for processing meltable materials

Also Published As

Publication number Publication date
DE3228421C2 (en) 1987-05-21

Similar Documents

Publication Publication Date Title
DE4344340C2 (en) Mold closing device for an injection molding machine
DE1215353B (en) Injection molding machine with at least two injection molds each operated by a separate injection unit
EP0504571A2 (en) Mould for injection moulding of multicomponent brush bodies
DE2918926C2 (en) Injection mold for the production of injection molded parts consisting of at least two different plastic compounds and having at least two different areas
EP0419911A2 (en) Method and apparatus for injection moulding multi-component plastic bodies
DE2062432B2 (en) Mold clamping device of a plastic injection molding machine with a mold clamping plate that can be moved transversely to the closing direction
DE3228421A1 (en) Multi-cavity mould for plastics moulding compounds
DE4034934C2 (en) Tandem nozzle for processing thermoplastic materials
EP1199147A1 (en) Stack mould for injection moulding of plastic objects
DE2415237A1 (en) DEVICE FOR METERED FILLING OF LIQUID, MATERIALS THAT FREEZE IN STATE, SUCH AS MARGARINE O.DGL.
DE102005035803B4 (en) Device for producing multi-component injection molded parts
DE102009018214A1 (en) Shaping machine, for shaping film material into blister packaging, has an injection molding unit coupled to one of the dies
DE2350128A1 (en) Metering pump for plastics constituents - with synchronised double acting pistons supplying each constituent continuously
DE4328853C1 (en) Multi-component multi-daylight mould for plastics injection-moulding machines
DE2924554C2 (en)
DE2110270A1 (en) Foundry blow moulding machine
DE3037251A1 (en) Injection moulding machine has several moulds - each with own injection unit but mounted in common mould plates
DE3407527A1 (en) Process and device for producing mouldings with multiple colours and/or consisting of a plurality of thermoplastic materials, in particular footwear, by injection moulding
DE2329097A1 (en) DEVICE FOR THE MANUFACTURING OF MOLDED PARTS FROM PREFERABLY FOAMABLE THERMOPLASTICS
DE2338483A1 (en) Thermoplastic moulding with two moving platens - ensuring platens meet at a precise position
DE4423652A1 (en) Adjustable thermoplastic distributor
DE1138657B (en) Device for pouring liquids
DE3312830A1 (en) Device for feeding a plurality of moulds with a reactive plastics mixture
DE2655592C2 (en) Centrifugal casting device for the manufacture of products containing cast resin, in particular electric motors
DE1554808C3 (en) Distribution head for a pressure medium on a multi-station injection molding machine for processing plastics

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: B29C 1/00

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee