DE10227636A1 - Method and device for producing multi-component molded plastic parts - Google Patents

Method and device for producing multi-component molded plastic parts Download PDF

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Publication number
DE10227636A1
DE10227636A1 DE2002127636 DE10227636A DE10227636A1 DE 10227636 A1 DE10227636 A1 DE 10227636A1 DE 2002127636 DE2002127636 DE 2002127636 DE 10227636 A DE10227636 A DE 10227636A DE 10227636 A1 DE10227636 A1 DE 10227636A1
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Germany
Prior art keywords
work area
injection molding
preform
plastic
component
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DE2002127636
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German (de)
Inventor
Erwin Dr. Bürkle
Heinz-Wolfgang Rasinger
Christoph Lange
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.)
KraussMaffei Technologies GmbH
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Krauss Maffei Kunststofftechnik GmbH
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Application filed by Krauss Maffei Kunststofftechnik GmbH filed Critical Krauss Maffei Kunststofftechnik GmbH
Priority to DE2002127636 priority Critical patent/DE10227636A1/en
Priority to CN 03814545 priority patent/CN1662356A/en
Priority to AU2003236718A priority patent/AU2003236718A1/en
Priority to PCT/EP2003/006004 priority patent/WO2004000525A1/en
Priority to EP03735577A priority patent/EP1519821A1/en
Publication of DE10227636A1 publication Critical patent/DE10227636A1/en
Priority to US11/013,208 priority patent/US20050156352A1/en
Withdrawn legal-status Critical Current

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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
    • B29C45/0441—Injection moulding apparatus using movable moulds or mould halves involving a rotational movement
    • B29C45/045—Injection moulding apparatus using movable moulds or mould halves involving a rotational movement mounted on the circumference of a rotating support having a rotating axis perpendicular to the mould opening, closing or clamping direction
    • 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
    • B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14786—Fibrous material or fibre containing material, e.g. fibre mats or fibre reinforced material
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • 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
    • B29C2045/1692—Making multilayered or multicoloured articles one layer comprising fibres
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C2045/466—Means for plasticising or homogenising the moulding material or forcing it into the mould supplying the injection unit directly by a compounder
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14008—Inserting articles into the mould
    • B29C45/14016—Intermittently feeding endless articles, e.g. transfer films, to the 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • 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
    • B29C45/1615—The materials being injected at different moulding stations
    • B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Zur Fertigung von mehrkomponentigen Kunststoff-Formteilen durch Spritzgießen wird erfindungsgemäß vorgeschlagen, mindestens eine Komponente unter Einsatz eines In-Mould-Compounders herzustellen. DOLLAR A Zur Herstellung von Mehrkomponentenanteilen mit Kernen oder Lagen aus Fasergewebe oder -vlies wird erfindungsgemäß vorgeschlagen, eine Wendeplattenmaschine mit zwei Arbeitsbereichen (A, B) einzusetzen. Dabei wird das Fasermaterial in dem Arbeitsbereich A in einer Werkzeugkavität zu einem Vorformling umgeformt, und gleichzeitig wird ein in einem vorhergehenden Takt gefertigter Vorformling im Arbeitsbereich B mit Kunststoff umspritzt oder Kunststoff wird angespritzt. Anschließend wird die Wendeplatte 6 um eine Axialachse verdreht, so daß der Vorformling vom Arbeitsbereich A in den Arbeitsbereich B transportiert wird, das fertige Kunststoff-Formteil wird entnommen, und der Herstellungstakt beginnt von vorn. DOLLAR A Optional ist eine zweite Spritzgießeinheit I vorgesehen, mit der bei Bedarf ein Additiv wie Härter, Binder oder dergleichen in die Kavität beim Bilden des Vorformlings eingespritzt werden kann.For the production of multi-component plastic molded parts by injection molding, it is proposed according to the invention to produce at least one component using an in-mold compounder. DOLLAR A For the production of multi-component parts with cores or layers of fiber fabric or nonwoven, it is proposed according to the invention to use an indexable insert machine with two working areas (A, B). The fiber material in the work area A is formed into a preform in a tool cavity, and at the same time a preform produced in a previous cycle is overmolded with plastic in the work area B or plastic is injected. The indexable insert 6 is then rotated about an axial axis, so that the preform is transported from the work area A to the work area B, the finished plastic molding is removed, and the production cycle starts again. DOLLAR A Optionally, a second injection molding unit I is provided, with which an additive such as hardener, binder or the like can be injected into the cavity when the preform is formed, if required.

Description

Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zum Herstellen mehrkomponentiger Kunststoff-Formteile.The invention relates to a Method and device for producing multi-component Plastic moldings.

Mehrkomponentige Kunststoff-Formteile sind beispielsweise Ölwannen mit umlaufender Dichtung für Automobile, Gehäusedeckel mit umlaufender Dichtung, Strukturbauteile mit Dämpfelementen, Mehrfarbenbauteile etc. oder auch Strukturbauteile mit einem Kern oder einer Lage aus Fasermaterial wie Glasfasern oder Synthetikfasern und einem an- oder umspritzten Kunststoffkörper.Multi-component molded plastic parts are for example oil pans with circumferential seal for Automobile, housing cover with all-round seal, structural components with damping elements, multi-color components etc. or even structural components with a core or a layer Fiber material such as glass fibers or synthetic fibers and an on or molded plastic body.

Aus der DE-A-198 48 26 ist es bekannt, ein mehrkomponentiges Kunststoff-Formteil, in diesem Fall ein Thermoplastteil mit einer eingespritzten Elastomerdichtung, in einem zweitaktigen Spritzgießvorgang herzustellen. Dazu wird in einem ersten Takt ein Grundkörper aus Thermoplast in einer Form mit rückziehbaren Kernen hergestellt. In einem zweiten Takt werden die Kerne zurückgezogen, und Elastomermaterial wird in die so entstehende Kavität eingespritzt.From the DE-A-198 48 26 it is known to produce a multi-component molded plastic part, in this case a thermoplastic part with an injected elastomer seal, in a two-stroke injection molding process. For this purpose, a base body made of thermoplastic in a mold with retractable cores is produced in a first cycle. In a second cycle, the cores are withdrawn and elastomer material is injected into the cavity that is created.

Desweiteren sind sogenannte Wendeplattenmaschinen bekannt, bei denen zwischen einer beweglichen und einer festen Formaufspannplatte eine Wendeplatte auf einem Drehteller verdrehbar angeordnet ist. Die Wendeplatte trägt auf jeder Seite eine Werkzeughälfte, die mit einer Werkzeughälfte auf der festen Formaufspannplatte bzw. auf der beweglichen Formaufspannplatte zusammenwirken. Desweiteren ist der festen Formaufspannplatte bzw. beweglichen Formaufspannplatte je ein Einspritzaggregat zugeordnet. Bei geschlossenem Werkzeug wird in einem ersten Takt von einer ersten Spritzgießmaschine Kunststoffmaterial in die Kavität zwischen der festen Formaufspannplatte und der Wendeplatte einge spritzt, wodurch ein Spritzrohling hergestellt wird. Anschließend wird das Werkzeug geöffnet, die Wendeplatte wird um 180° verdreht, wobei der Rohling zur beweglichen Formaufspannplatte transportiert wird. Anschließend wird das Werkzeug wieder geschlossen, und Kunststoffmaterial von einer zweiten Spritzgießmaschine wird in die Kavität zwischen beweglicher Aufspannplatte und Wendeplatte mit dem darin befindlichen Rohling eingespritzt; gleichzeitig läuft ein weiterer erster Takt ab. Eine derartige Wendeplattenmaschine ist aus der WO 01/10624 A1 bekannt.Furthermore, so-called indexable insert machines are known in which an indexable insert is rotatably arranged on a turntable between a movable and a fixed platen. The indexable insert carries a tool half on each side, which interact with a tool half on the fixed platen or on the movable platen. Furthermore, an injection unit is assigned to each of the fixed platen or movable platen. When the mold is closed, plastic material is injected into the cavity between the fixed platen and the indexable insert in a first cycle from a first injection molding machine, whereby an injection molding blank is produced. Then the tool is opened, the insert is rotated by 180 °, whereby the blank is transported to the movable platen. The tool is then closed again and plastic material from a second injection molding machine is injected into the cavity between the movable platen and the insert with the blank therein; at the same time, another first bar runs. Such an insert machine is from WO 01/10624 A1 known.

Bei den oben beschriebenen Verfahren werden stets nur einphasige, d.h. "reine" Kunststoffe verwendet. Aus Stabilitäts- oder Kostengründen besteht jedoch der Bedarf, Kohle- oder glasfaserverstärkte Kunststoffe oder Kunststoffe mit anderen Füllmaterialien zu verwenden.In the procedures described above are always only single-phase, i.e. "pure" plastics are used. For stability or cost reasons however, there is a need for carbon or glass fiber reinforced plastics or plastics with other filling materials to use.

Dazu wird erfindungsgemäß vorgeschlagen, zur Herstellung mindestens einer Komponente eines mehrkomponentigen Kunststoff-Formteils einen In-Mould-Compounder zu verwenden.For this purpose, the invention proposes to Production of at least one component of a multi-component Plastic molded part to use an in-mold compounder.

In-Mould-Compounder an sich sind bekannt ( DE-PS-1 14 22 29 ). Sie umfassen einen Extruder, in dem Kunststoffmaterial plastifiziert wird, und einen Einspritzzylinder, in dem das plastifizierte Kunststoffmaterial, ggf. nunter Zwischenschaltung eines Druckspeichers, eingespeist wird und anschließend aus dem Einspritzzylinder in eine Form eingespritzt wird.In-mold compounders are known per se ( DE-PS-1 14 22 29 ). They include an extruder, in which plastic material is plasticized, and an injection cylinder, in which the plasticized plastic material is fed, possibly with the interposition of a pressure accumulator, and then injected from the injection cylinder into a mold.

Erfindungsgemäß wird in dem Extruder eine mehrphasige Kunststoffmasse hergestellt, beispielsweise durch Zugabe von Glasfasermaterial, Kohlefasermaterial, Mischsystemen oder Füllstoffen zur Herstellung hochgefüllter Formmassen. Zur Herstellung von mehrkomponentigen Kunststoffteilen wird dieses Material als eine Komponente im Spritzgießvorgang verwendet. Andere Materialien können ebenfalls über einen In-Mould-Compounder vorbereitet und eingespritzt werden oder über eine andere bekannte Spritrgießeinheit. Als weitere Komponente eignen sich beispielsweise Elastomere in Form von vernetzenden Kunststoffen, Gummi oder LSR oder thermoplastische Elastomere.According to the invention, a multi-phase is in the extruder Plastic mass produced, for example by adding glass fiber material, Carbon fiber material, mixing systems or fillers for the production of highly filled molding compounds. This material is used to manufacture multi-component plastic parts used as a component in the injection molding process. Other Materials can also about an in-mold compounder is prepared and injected, or via a other known injection molding unit. For example, elastomers in are suitable as a further component Form of cross-linking plastics, rubber or LSR or thermoplastic Elastomers.

Erfindungsgemäß wird weiterhin vorgeschlagen, zur Herstellung von Kunststoff Formteilen mit einem Kern oder Lagen aus Fasermaterial eine Spritzgießmaschine mit zwei Arbeitsbereichen, vorzugsweise in Form einer Wendeplatte, zu verwenden. Dabei wird in dem ersten Arbeitsbereich ein Vorprodukt aus Fasermaterial zu einem Vorformling umgeformt, und gleichzeitig wird im zweiten Arbeitsbereich ein Vorformling einem Spritzgießvorgang unterzogen, d.h. Kunststoffmaterial wird an den Vorformling angespritzt oder der Vorformling wird mit Kunststoffmaterial umspritzt. Anschließend wird das fertige Kunststoff-Formteil aus dem zweiten Arbeitsbereich entnommen, und der im ersten Arbeitsbereich gefertigte Vorformling wird über die Wendeplatte in den zweiten Arbeitsbereich transportiert.According to the invention, it is also proposed that for the production of plastic molded parts with a core or layers an injection molding machine with two working areas made of fiber material, preferably in the form of an insert. Doing so in the first work area a preliminary product made of fiber material a preform, and at the same time in the second work area a preform an injection molding process subjected, i.e. Plastic material is molded onto the preform or the preform is overmolded with plastic material. Then will the finished plastic molded part is removed from the second work area, and the preform manufactured in the first work area is transferred via the The insert is transported to the second work area.

Auf diese Weise sind in einer Maschine das Umformen des Vorproduktes und das Fertigen des Endproduktes integriert, und Strukturbauteile, die höchsten mechanischen Ansprüchen genügen, können hergestellt werden.This way you are in one machine the forming of the preliminary product and the production of the final product integrated, and structural components that meet the highest mechanical demands can be manufactured become.

Als Vorprodukte eignen sich insbesondere Gewebe- oder Vliesmaterialien aus Glas-, Natur-, Kohle- oder Synthetikfasern, vorzugsweise in Form eines Endlosbandes; das Kunststoffmaterial ist vorzugsweise ein Thermoplast.Particularly suitable as preliminary products are or nonwoven materials made of glass, natural, carbon or synthetic fibers, preferably in the form of an endless belt; the plastic material is preferably a thermoplastic.

Konventionelle Wendeplattenmaschinen sind insbesondere für den Einsatz mit zwei Einspritzaggregaten geeignet. Ein derartiger Aufbau kann auch erfindungsgemäß eingesetzt werden, um beim Bilden des Vorformlings ein Additiv in den zweiten Arbeitsbereich einzuspritzen. Dieses Additiv kann beispielsweise ein Härter sein, um Synthetikfasern auszuhärten, ein Binder, um ein Aufweiten des Vorformlings beim Öffnen der Form zu verhindern, ein Kunststoffmaterial oder ein Zusatzstoff sein, der die Haftung des Fasermaterials mit dem später einzuspritzenden Kunststoff verbessert.Conventional indexable insert machines are especially for suitable for use with two injection units. Such one Structure can also be used according to the invention to add an additive to the second when forming the preform Inject work area. This additive can, for example a hardener to cure synthetic fibers, a binder to widen the preform when opening the Prevent form, a plastic material or an additive be the liability of the fiber material with the injected later Improved plastic.

Eine Ausführungsform der Erfindung wird anhand der beigefügten Zeichnung erläutert.An embodiment of the invention is based on the attached Drawing explained.

Die Figur zeigt eine Spritzgießmaschine mit einer festen Formaufspannplatte 2, einer beweglichen Formaufspannplatte 4 und einer Wendeplatte 6. Die Formaufspannplatten tragen Formwerkzeuge 3, 5, die zusammen mit der Wendeplatte 6. Kavitäten zum Herstellen von Kunststoff-Formteilen bilden. Die Wendeplatte 6 und die bewegliche Formaufspannplatte 4 sind axial verschieblich, wobei die bewegliche Formaufspannplatte 4 über Holme 8, die durch die feste Formaufspannplatte geführt sind, auf die feste Formaufspannplatte 2 zu- oder von ihr wegbewegt wird. Weiterhin dargestellt sind ein Antrieb 10 sowie (schematisch) ein erstes Einspritzaggregat I und ein zweites Einspritzaggregat II.The figure shows an injection molding machine with a fixed platen 2 , a movable platen 4 and an insert 6 , The mold mounting plates carry molds 3 . 5 that together with the insert 6 , Form cavities for the production of plastic molded parts. The insert 6 and the movable platen 4 are axially movable, the movable platen 4 about spars 8th that are passed through the fixed platen onto the fixed platen 2 is moved towards or away from it. A drive is also shown 10 and (schematically) a first injection unit I and a second injection unit II.

Der gesamte Aufbau aus Antrieb und Formaufspannplatten ist auf einem Modulrahmen 20 gelagert, der seinerseits auf einem Maschinenbett 35 der Spritzgießmaschine befestigt ist.The entire structure consisting of drive and platen is on a module frame 20 stored, which in turn on a machine bed 35 the injection molding machine is attached.

Bei dem dargestellten Aufbau sind zwischen der beweglichen Formaufspannplatte 4 und der Wendeplatte 6 ein erster Arbeitsbereich A und zwischen der Wendeplatte 6 und der festen Formaufspannplatte 2 ein zweiter Arbeitsbereich B gebildet. Bei geöffneten Formwerkzeugen wird ein Fasermaterial in die Formkavität des ersten Arbeitsbereichs A vorzugsweise in Form eines Endlosbandes eingebracht, wie durch den Pfeil P angedeutet ist. Anschließend werden die Formwerkzeuge durch Bewegen der beweglichen Formaufspannplatte 4 und der Wendeplatte 6 auf die feste Formaufspannplatte zu geschlossen, und im ersten Arbeitsbereich wird ein Vorformling gebildet, während gleichzeitig in der Kavität des zweiten Arbeitsbereichs B ein bereits gefertigter Vorformling mit Kunststoff mittels des zweiten Einspritzaggregats II umspritzt wird.In the structure shown there are between the movable platen 4 and the insert 6 a first work area A and between the insert 6 and the fixed platen 2 a second work area B is formed. When the molds are open, a fiber material is introduced into the mold cavity of the first working area A, preferably in the form of an endless belt, as indicated by the arrow P. Then the molds are moved by moving the movable platen 4 and the insert 6 closed to the fixed platen, and a preform is formed in the first work area, while at the same time in the cavity of the second work area B an already produced preform is encapsulated with plastic by means of the second injection unit II.

Anschließend werden die Formwerkzeuge wieder geöffnet, das fertige Kunststoffteil wird aus dem Arbeitsbereich B entfernt, und durch Drehen der Wendeplatte wird der gefertigte Vorformling in den Arbeitsbereich B transportiert, und ein weiterer Abschnitt des Fasermaterials wird in den Bereich A gefördert, so daß ein weiterer Maschinentakt beginnen kann. Das in der Figur dargestellte Einspritzaggregat I ist optional und kann bei Bedarf dazu verwendet werden, beim Bilden des Vorformlings ein Additiv in die Kavität des ersten Arbeitsbereiches A einzuspritzen.Then the molding tools again open, the finished plastic part is removed from work area B, and by turning the insert, the preform is made transported to work area B, and another section of the fiber material is conveyed to area A, so that another Machine cycle can begin. The injection unit I shown in the figure is optional and can be used as needed when forming of the preform into the cavity of the first working area Inject A.

In der Figur sind als Einspritzaggregate Einspritzschnecken-Vorrichtungen dargestellt; statt dessen oder in Kombination damit können auch In-Mould-Compounder verwendet werden.In the figure are as injection units Injection Screw Devices Shown; instead or in combination with it In-mold compounders can also be used.

Claims (10)

Verfahren zum Herstellen eines mehrkomponentigen Kunststoff-Formteils in einem mehrstufigen Spritzgießvorgang, wobei man zur Herstellung mindestens einer Komponente Kunststoffmaterial in einem Extruder mit Zuschlagstoffen aufbereitet und über eine Einspritzeinheit in eine Form einspritzt.Process for producing a multi-component molded plastic part in a multi-stage injection molding process, whereby for the production of at least one component plastic material processed in an extruder with additives and via a Injection unit injected into a mold. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Zuschlagstoffe Glasfasern oder -kugeln, Kohlefaser und/oder Füllstoffe sind.A method according to claim 1, characterized in that the additives Glass fibers or balls, carbon fiber and / or fillers. Vorrichtung zum Herstellen mehrkomponentiger Kunststoff-Formteile mit mindestens einem Formwerkzeug, und einer Formwechseleinrichtung und mehreren Spritzgießeinheiten, dadurch gekennzeichnet, daß mindestens eine der Spritzgießeinheiten ein Extruder mit einem Einspritzzylinder ist.Device for producing multi-component molded plastic parts with at least one mold, and a mold changing device and several injection molding units, characterized in that at least one of the injection molding units is an extruder with an injection cylinder. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Formwechseleinrichtung bewegbare Kerne einer Form aufweist.Apparatus according to claim 3, characterized in that the shape changing device has movable cores of a shape. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Formwechseleinrichtung eine Wendeplatte ist.Apparatus according to claim 3, characterized in that the shape changing device is an indexable insert. Verfahren zum Herstellen eines mehrkomponentigen Kunststoff Formteils auf einer Spritzgießmaschine mit zwei Arbeitsbereichen, vorzugsweise in Form einer Wendeplatte, wobei man taktweise ein Vorprodukt aus Fasermaterial in den ersten Arbeitsbereich einbringt und zu einem Vorformling umformt und gleichzeitig in dem zweiten Arbeitsbereich einen Vorformling, der in einem vorhergehenden Takt ausgebildet wurde, in einem Spritzgießvorgang weiterverarbeitet.Process for producing a multi-component plastic Molding on an injection molding machine with two work areas, preferably in the form of an indexable insert, with a preliminary product made of fiber material in the first Introduces the work area and transforms it into a preform and at the same time in the second work area a preform that is in a previous one Cycle was trained, processed in an injection molding process. Verfahren nach Anspruch 6, wobei man in den Spritzgießvorgang im zweiten Arbeitsbereich Kunststoffmaterial an den Vorformling anspritzt oder ihn damit umspritzt.The method of claim 6, wherein one in the injection molding process in the second work area plastic material on the preform splashed or overmolded him. Verfahren nach Anspruch 6 oder 7, wobei man bei der Bildung des Vorformlings ein Additiv wie Härter, Binder, Kunststoffmaterial, haftungsverbessernde Zusätze oder dergleichen in den ersten Arbeitsbereich in einem Spritzgießvorgang einspritzt.A method according to claim 6 or 7, wherein in the formation an additive such as hardener, binder, plastic material, liability-enhancing additives or the like in the first work area in an injection molding process injects. Verfahren nach einem der Ansprüche 6–8, das Vorprodukt ein Fasergewebe oder ein Faservlies aufweist und die Fasern vorzugsweise Glas-, Kohle-, Natur- oder Synthetikfasern sind.Method according to one of claims 6-8, the intermediate product a fiber fabric or has a nonwoven fabric and the fibers are preferably glass, Are carbon, natural or synthetic fibers. Verfahren nach einem der Ansprüche 6–9, wobei das Vorprodukt dem ersten Arbeitsbereich als Bahnmaterial, vorzugsweise als Endlosbahn zugeführt wird.A method according to any of claims 6-9, wherein the precursor is the first work area as web material, preferably as an endless web supplied becomes.
DE2002127636 2002-06-21 2002-06-21 Method and device for producing multi-component molded plastic parts Withdrawn DE10227636A1 (en)

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DE2002127636 DE10227636A1 (en) 2002-06-21 2002-06-21 Method and device for producing multi-component molded plastic parts
CN 03814545 CN1662356A (en) 2002-06-21 2003-06-07 Method of and apparatus for injection molding multicomponent fiber-reinforced molded parts
AU2003236718A AU2003236718A1 (en) 2002-06-21 2003-06-07 Method and device for the injection moulding of multi-component fibre-reinforced moulded parts
PCT/EP2003/006004 WO2004000525A1 (en) 2002-06-21 2003-06-07 Method and device for the injection moulding of multi-component fibre-reinforced moulded parts
EP03735577A EP1519821A1 (en) 2002-06-21 2003-06-07 Method and device for the injection moulding of multi-component fibre-reinforced moulded parts
US11/013,208 US20050156352A1 (en) 2002-06-21 2004-12-15 Method of and apparatus for injection molding multicomponent fiber-reinforced molded parts

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