DE4116437A1 - Mfr. of coloured plastic components - comprises forming coloured film in vacuum in one half of mould which is closed to form injection mould - Google Patents

Mfr. of coloured plastic components - comprises forming coloured film in vacuum in one half of mould which is closed to form injection mould

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Publication number
DE4116437A1
DE4116437A1 DE4116437A DE4116437A DE4116437A1 DE 4116437 A1 DE4116437 A1 DE 4116437A1 DE 4116437 A DE4116437 A DE 4116437A DE 4116437 A DE4116437 A DE 4116437A DE 4116437 A1 DE4116437 A1 DE 4116437A1
Authority
DE
Germany
Prior art keywords
film
vacuum
mold
mould
coloured
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
DE4116437A
Other languages
German (de)
Other versions
DE4116437C2 (en
Inventor
Juergen Dr Skowronnek
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Priority to DE4116437A priority Critical patent/DE4116437C2/en
Publication of DE4116437A1 publication Critical patent/DE4116437A1/en
Application granted granted Critical
Publication of DE4116437C2 publication Critical patent/DE4116437C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • 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
    • B29C45/14—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
    • B29C45/14688—Coating articles provided with a decoration
    • 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
    • B29C45/14811—Multilayered 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B29C2037/0042—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied in solid sheet form, e.g. as meltable sheet
    • 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
    • B29C2045/14237—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 the inserts being deformed or preformed outside the mould or mould cavity
    • 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
    • B29C45/14688—Coating articles provided with a decoration
    • B29C2045/14696—Coating articles provided with a decoration transparent decorated inserts
    • 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
    • B29C45/14688—Coating articles provided with a decoration
    • B29C2045/14713—Coating articles provided with a decoration decorations in contact with injected 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/722—Decorative or ornamental articles

Abstract

A plastic component is made by first deep drawing a film in a form tool by vacuum. The form tool is then closed with a core leaving a space which is accessible from outside. The space is filled with a hardenable synthetic material which combines with the film over the whole surface. The vacuum between the film and the form tool is pref. maintained till the synthetic material is applied. The film can be a clear film which has been sprayed with a coloured metallic lacquer before forming. USE/ADVANTAGE - The process gives durable coloured plastic components for use on vehicles.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Kunststoff-Formteils sowie ein nach diesem Verfahren hergestelltes Formteil.The invention relates to a method for producing a Plastic molded part and a manufactured by this process Molding.

Es ist bekannt, Kunststoff-Formteile im Spritzgießverfahren herzustellen. Solcherart gefertigte Formteile werden auch im Automobilbau, beispielsweise als Abdeckung für Stoßfänger oder als Spiegelgehäuse, eingesetzt. Dabei besteht vielfach der Wunsch, zur optischen Aufwertung des Fahrzeugs derartige, gerade im Außenbereich verwendete Formteile der Fahrzeugaußenfarbe anzupassen. Zu diesem Zwecke werden die Formteile in bekannter Weise, zuweilen in Wagenfarbe, lackiert. Dieses Verfahren ist nicht nur sehr aufwendig, es bereitet auch Schwierigkeiten, den Lack dauerhaft auf das Formteil aufzubringen, ohne daß er nach relativ kurzer Zeit schon wieder, begünstigt durch Steinschlag und Witterungseinflüsse, abblättert.It is known to injection molded plastic parts to manufacture. Such molded parts are also in the Automotive, for example as a cover for bumpers or used as a mirror housing. There is often the Desire for the visual enhancement of the vehicle, such Moldings of the vehicle exterior paint used in the exterior adapt. For this purpose, the molded parts are known Wise, sometimes in body color, painted. This procedure is not only very complex, it also creates difficulties apply the varnish permanently to the molded part without after a relatively short time again, favored by Rockfalls and weather influences, peels off.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zur Herstellung von Kunststoff-Formteilen zu entwickeln, das einfach zu handhaben ist und dem Formteil einen dauerhaften Schutz verleiht. Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil des Patentanspruchs 1 genannten Verfahrens­ schritte gelöst.The invention is therefore based on the object of a method to develop for the production of molded plastic parts is easy to use and the molded part is durable Gives protection. According to the invention, this object is achieved by in the characterizing part of claim 1 mentioned method steps solved.

Zweckmäßigerweise liegt das Vakuum auch nach dem Tiefziehvorgang weiterhin an der Folie an. Sie bleibt damit in ihrer Lage fixiert, was für den nachfolgenden Arbeitsgang, nämlich das Auffüllen des Zwischenraumes mit Kunststoff-Material, vorteilhaft ist. So können beispielsweise Faltenbildungen verhindert werden. The vacuum expediently also remains after the deep-drawing process still on the slide. It remains fixed in its position what for the subsequent operation, namely the filling the space with plastic material is advantageous. For example, wrinkles can be prevented.  

Die Entformung des Formteils, also das Herausnehmen des fertigen Werkstücks aus dem Werkzeug, erfolgt nach einer weiteren Aus­ bildung der Erfindung dadurch, daß in die Kanäle, die zuvor der Erzeugung des Vakuums dienten, jetzt Druckluft geblasen wird. Somit können besondere Auswerfer, wie sie bei Spritzguß­ maschinen bekannt und üblich sind, entfallen.The demolding of the molded part, i.e. the removal of the finished part Workpiece from the tool, takes place after another off education of the invention in that in the channels that previously vacuum was used to blow compressed air becomes. This allows special ejectors, such as those used in injection molding machines are known and common, are omitted.

Wenn auch nicht auszuschließen ist, daß in bestimmten Anwendungs­ fällen die Verwendung einer eingefärbten Folie sinnvoll ist, um das Formteil farbig erscheinen zu lassen, so wird man in anderen Fällen vorteilhafterweise auf eine Ausgestaltung des erfindungsgemäßen Verfahrens zurückgreifen, wie sie im Patent­ anspruch 4 beschrieben ist. Die weiteren Unteransprüche beinhalten weitere zweckmäßige Ausgestaltungen der Erfindung.Although it cannot be ruled out that in certain applications if it makes sense to use a colored film, to make the molded part appear colored, you will be in other cases advantageously to a configuration of the fall back method according to the invention, as in the patent Claim 4 is described. The further subclaims include further expedient refinements of the invention.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung nachstehend näher erläutert. Darin ist die Herstellung eines farbigen Kunststoff-Formteils dargestellt, das als Bestandteil einer Kraftfahrzeug-Stoßstange auf einem Trägerblech befestigt wird und in erster Linie die Stoßstange und damit auch das Fahrzeug optisch aufwerten soll. Das Kunststoff-Formteil stellt also eine Blende oder Abdeckung dar, die in ihrer Farbe der Wagenfarbe angepaßt ist.An embodiment of the invention is based on the drawing explained in more detail below. In it is the making of one colored plastic molding shown as a component a motor vehicle bumper attached to a carrier plate is and primarily the bumper and therefore also that Appearance of the vehicle. The plastic molding provides So it represents a cover or cover, the color of the Body color is adjusted.

Bisher wird die Abdeckung in üblicher Weise lackiert. Abgesehen davon, daß dabei die Lackschicht der bezüglich Beschädigungen an exponierter Stelle des Fahrzeugs befindlichen Stoßstange sehr schnell in Mitleidenschaft gezogen wird, gibt es oft schon beim Aufbringen des Lackes Schwierigkeiten, insbesondere bei der Verwendung eines Metalleffekt-Lackes, der bekanntlich kleinste Aluminiumplättchen enthält. Wenn diese Aluminiumplättchen nicht parallel zueinander und auch nicht parallel zu der lackierten Oberfläche ausgerichtet sind, was regelmäßig in solchen Bereichen der Oberfläche der Fall ist, in denen - bedingt durch kleine Radien oder scharfe Kanten - stark ausgeprägte Übergänge von einem Flächenteil zu einem anderen vorhanden sind, dann treten Schlieren in der Lackierung auf, die den optischen Eindruck herabsetzen. Diese Probleme treten bei der erfindungsgemäß hergestellten Abdeckung nicht auf.So far, the cover has been painted in the usual way. Except assuming that the paint layer is damaged bumper located in an exposed position of the vehicle is often affected very quickly difficulties in applying the paint, especially when the use of a metallic effect paint, which is known to be the smallest Contains aluminum plates. If these aluminum plates are not parallel to each other and also not parallel to the painted one Surface are aligned regularly in such areas the surface is the case in which - due to small Radii or sharp edges - pronounced transitions from one area to another are present, then kick Streaks in the paintwork that give the visual impression  belittle. These problems occur with the invention manufactured cover not on.

In der Zeichnung zeigen im einzelnen:The drawing shows in detail:

Fig. 1 das einseitige Beschichten einer tiefziehfähigen Folie mit einem Metalleffekt-Lack, Fig. 1, the one-sided coating of a deep-drawable film with a metallic effect paint,

Fig. 2 u. 3 das Tiefziehen der lackierten Folie in der offenen ersten Hälfte eines Spritzgießwerkzeuges, Fig. 2 u. 3 deep-drawing the lacquered film in the open first half of an injection mold,

Fig. 4 das mittels der zweiten Hälfte geschlossene Spritz­ gießwerkzeug und Fig. 4, the injection mold closed by means of the second half and

Fig. 5 in vergrößerter Darstellung den Folienbeschnitt an der entformten Abdeckung. Fig. 5 in an enlarged view the film trimming on the demolded cover.

Zunächst wird also eine tiefziehfähige, durchsichtige und witterungs­ beständige Folie 1 einseitig mittels einer geeigneten Sprühvor­ richtung 2 mit einem Metalleffekt-Lack 3 beschichtet. Dazu wird die Folie 1 in Richtung des Pfeiles 4 unter der ortsfesten Sprühvorrichtung 2 entlanggeführt, so daß sich eine gleichmäßige Lackschicht 5 ausbildet. Mittels eines nachgeschalteten Saugge­ bläses in einem Abzug 6 kann die Lackschicht 5 dann ablüften.First of all, a thermoformable, transparent and weather-resistant film 1 is coated on one side by means of a suitable Sprühvor device 2 with a metallic effect paint 3 . For this purpose, the film 1 is guided in the direction of arrow 4 under the fixed spray device 2 , so that a uniform layer of lacquer 5 is formed. By means of a downstream Saugge blower in a trigger 6 , the paint layer 5 can then flash off.

Danach wird die lackierte Folie 1,5 bis auf Tiefziehtemperatur erhitzt und in einem Tiefziehwerkzeug 7 im Vakuumverfahren tiefgezogen, wobei sie mit der nicht lackierten Folienseite 8 an der Formwand 9 des Tiefziehwerkzeugs 7 zur Anlage kommt. Als Tiefziehwerkzeug 7 dient die Hälfte eines Spritzgießwerkzeugs, die auch als Matrizenseite bezeichnet wird. Fig. 2 zeigt die lackierte Folie 1,5 und das Tiefziehwerkzeug 7 vor dem Tief­ ziehen, Fig. 3 danach.Thereafter, the coated film 1.5 is heated to the deep-drawing temperature and deep-drawn in a deep-drawing tool 7 in a vacuum process, with the non-coated film side 8 coming into contact with the mold wall 9 of the deep-drawing tool 7 . Half of an injection mold, which is also referred to as the die side, serves as the deep-drawing tool 7 . Fig. 2 shows the painted film 1,5 and the deep-drawing tool 7 before deep drawing, Fig. 3 after.

Die lackierte Folie 1,5 bleibt nun gemäß Fig. 3 in der Form­ hälfte 7, und das Spritzgießwerkzeug wird mit seiner anderen Hälfte, der Kernseite 10, geschlossen, wie es in Fig. 4 gezeigt ist. Dabei verbleibt zwischen der Lackschicht 5 und der Stirn­ fläche 11 der Kernseite 10 ein Hohlraum 12, in den jetzt über einen Kanal 13 ein plastifiziertes Thermoplast-Material einge­ spritzt wird, das nach dem Erkalten ohne Zusatzmittel wie Kleber fest an der lackierten Folie 1,5 haftet. Das erkaltete Thermo­ plast-Material bildet gleichsam eine Stützschale 14 für die lackierte Folie 1,5, zugleich aber auch einen Schutz für die Lackschicht 5.The coated film 1.5 will now remain in FIG. 3 in the mold half 7, and the injection mold is with its other half, the core side 10, closed, as shown in Fig. 4. This leaves between the lacquer layer 5 and the end face 11 of the core side 10, a cavity 12 into which a plasticized thermoplastic material is now injected via a channel 13 , which after cooling without additives such as glue firmly on the painted film 1.5 is liable. The cooled thermoplastic material forms, as it were, a support shell 14 for the lacquered film 1.5 , but at the same time also protects the lacquer layer 5 .

Nach einer gewissen Abkühlungszeit wird das Spritzgießwerkzeug geöffnet, d. h. die beiden Hälften 7 und 10 werden voneinander getrennt, und das dreischichtige, aber einstückige Formteil 15, welches die lackierte Folie 1,5 und die Stützschale 14 umfaßt, wird entnommen.After a certain cooling time, the injection mold is opened, ie the two halves 7 and 10 are separated from one another, and the three-layer, but one-piece molded part 15 , which comprises the lacquered film 1, 5 and the support shell 14 , is removed.

In einem weiteren Arbeitsgang wird, wie in Fig. 5 angedeutet, der überstehende Rand 16 der lackierten Folie 1,5 abgeschnitten.In a further operation, as indicated in FIG. 5, the protruding edge 16 of the lacquered film 1.5 is cut off.

Das fertige Formteil 15 kann dann zur Komplettierung der zeich­ nerisch nicht dargestellten Stoßstange weiterverwendet werden. Durch die Folie 1 auf der Vorderseite und die hinterspritzte Schicht 14 aus Thermoplast-Material ist die Lackschicht 5 weitest­ gehend geschützt. Der Metalleffekt kommt voll und ohne optische Beeinträchtigungen zur Geltung, da die vor dem Tiefziehprozeß innerhalb der Lackschicht 5 in mehreren Ebenen befindlichen und parallel zueinander ausgerichteten Aluminiumplättchen durch den Tiefziehprozeß zwar in gewisser Weise gereckt worden sind, aber ihre Parallelität zur Oberfläche des Formteils nicht einge­ büßt haben.The finished molded part 15 can then be used to complete the bumper (not shown). The film 5 is largely protected by the film 1 on the front and the back-injected layer 14 made of thermoplastic material. The metallic effect is fully and without visual impairments to advantage, since the ahead of the deep-drawing process within the coating layer 5 in several planes parallel to each other aligned aluminum platelets have been indeed stretched by the deep-drawing process in a certain way, but their parallelism to the surface of the molding is not lost to have.

Claims (6)

1. Verfahren zur Herstellung eines Kunststoff-Formteils, gekennzeichnet durch folgende Verfahrensschritte:
  • a) eine Folie (1 bzw. 1,5) wird in einem offenen Formwerk­ zeug (7) im Vakuumverfahren tiefgezogen;
  • b) das Formwerkzeug (7) wird mittels eines ihm zugeordneten Kernwerkzeuges (10) geschlossen, wobei das Kernwerkzeug (10) derart bemessen ist, daß zwischen seiner innen liegenden Oberfläche (11) und der in dem Formwerkzeug (7) anliegenden Folie (1 bzw. 1,5) ein definierter, über wenigstens einen Kanal (13) von außen zugänglicher Zwischenraum (12) verbleibt;
  • c) der Zwischenraum (12) wird über den Kanal (13) mit einem aushärtbaren Kunststoff-Material (14) aufgefüllt, das sich vollflächig mit der Folie (1 bzw. 1,5) verbindet;
  • d) nach dem Aushärten des Kunststoff-Materials (14) wird das Formteil (15) entnommen.
1. A process for producing a molded plastic part, characterized by the following process steps:
  • a) a film ( 1 or 1.5 ) is deep-drawn in an open mold ( 7 ) in the vacuum process;
  • b) the mold (7) by means of an associated core die (10) closed it, wherein the core die (10) is dimensioned in such a way that between its inner surface (11) and the adjacent in the mold (7), film (1 or 1.5 ) a defined space ( 12 ) remains accessible via at least one channel ( 13 );
  • c) the intermediate space ( 12 ) is filled via the channel ( 13 ) with a hardenable plastic material ( 14 ) which connects the entire surface to the film ( 1 or 1.5 );
  • d) after the hardening of the plastic material ( 14 ), the molded part ( 15 ) is removed.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Vakuum zwischen Folie (1 bzw. 1,5) und Formwerkzeug (7) zumindest bis nach dem Auffüllen des Zwischenraumes (12) mit dem Kunststoff-Material (14) aufrecht erhalten bleibt.2. The method according to claim 1, characterized in that the vacuum between the film ( 1 or 1.5 ) and the mold ( 7 ) is maintained at least until after the filling of the space ( 12 ) with the plastic material ( 14 ). 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Entformung des Formteils (15) durch Einleitung von Druckluft in dieselben Kanäle im Formwerkzeug (7) erfolgt, die zuvor der Erzeugung des Vakuums dienten. 3. The method according to claim 1 or 2, characterized in that the demolding of the molded part ( 15 ) by introducing compressed air into the same channels in the mold ( 7 ), which previously served to create the vacuum. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekenn­ zeichnet, daß als Folie eine Klarsichtfolie (1) dient und daß vor dem Tiefziehen der Folie diese auf ihrer später der innen liegenden Oberfläche (11) des Kernwerkzeuges (10) zugekehrten Seite mit einem farbigen Lack (5) beschichtet wird.4. The method according to any one of claims 1 to 3, characterized in that a transparent film ( 1 ) is used as the film and that before the thermoforming of the film, this later on the inner surface ( 11 ) of the core tool ( 10 ) facing side with a colored lacquer ( 5 ) is coated. 5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß als Lack ein Metalleffekt-Lack verwendet wird.5. The method according to claim 4, characterized in that as Paint a metallic effect paint is used. 6. Nach dem Verfahren nach einem der Ansprüche 1 bis 5 herge­ stelltes Kunststoff-Formteil, dadurch gekennzeichnet, daß es als Blende für ein Bauteil dient.6. According to the method according to one of claims 1 to 5 Herge posed plastic molding, characterized in that it serves as an aperture for a component.
DE4116437A 1990-05-25 1991-05-18 Process for the production of a molded plastic part Expired - Fee Related DE4116437C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4116437A DE4116437C2 (en) 1990-05-25 1991-05-18 Process for the production of a molded plastic part

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DE4016799 1990-05-25
DE4116437A DE4116437C2 (en) 1990-05-25 1991-05-18 Process for the production of a molded plastic part

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DE4116437A1 true DE4116437A1 (en) 1991-11-28
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431672A1 (en) * 1994-09-06 1996-03-07 Kuehnendahl Display Gmbh & Co Printing inner side of upwardly projecting edge of synthetic tablet
FR2728194A1 (en) * 1994-12-19 1996-06-21 Seb Sa Prodn. of moulded plastic parts decorated in three dimensions
DE29805254U1 (en) * 1998-03-24 1999-07-29 Hehl Injection molding machine for the production of deep-drawn parts
DE19827192A1 (en) * 1998-06-18 1999-12-23 Volkswagen Ag Process for the production of decorated plastic parts
WO2000035652A1 (en) * 1998-12-15 2000-06-22 Guardian Automotive Trim, Inc. Automotive trim with clear top coat and method of making same
DE19926143A1 (en) * 1999-06-09 2000-12-14 Volkswagen Ag Process for the application of three-dimensionally shaped foils on complex surfaces
DE19932788A1 (en) * 1999-07-14 2001-01-18 Volkswagen Ag Process for forming a flat plastic part
DE19951785A1 (en) * 1999-10-27 2001-05-03 Bayerische Motoren Werke Ag Component with regions of different colors, e.g. a car body part, is made by backing a transparent film with different materials in successive steps
US6319438B1 (en) 1998-12-15 2001-11-20 Guardian Automotive Trim, Inc. Extruded automotive trim and method of making same
DE4442632B4 (en) * 1994-11-30 2004-05-06 Bayerische Motoren Werke Ag Process for the production of a molded plastic part
US7195727B2 (en) 1999-10-13 2007-03-27 Guardian Industries Corp. Extruded automotive trim and method of making same
DE102005044235A1 (en) * 2005-09-16 2007-03-29 Volkswagen Ag System for painting exterior of plastic components of chassis of motor vehicles, comprises transparent monofilm-plastic foil integrated into the view side of the external area of the component, and a colored carrier material
DE102011011141A1 (en) * 2011-02-14 2012-08-16 Bayerische Motoren Werke Aktiengesellschaft Method for manufacturing molded part, involves providing film and sucking film at upper surface of partially structured or perforated tool by vacuum
EP1876087B2 (en) † 2006-07-06 2014-11-19 Roof Systems Germany GmbH Method of manufacturing a foamed vehicle component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008022224A1 (en) 2008-05-06 2009-11-12 Daimler Ag Method for the production of plastic mold parts with a lacquer coating, comprises areawisely connecting a hardened non-thermofoamable transfer varnish carrier with a plastic form mass on side of the adhesive layer in firmly bonded manner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2114181A1 (en) * 1971-03-24 1972-10-12 Opel Adam Ag Cladding material - for vehicle interiors of foam and film layers drawn into mould for further injection
EP0101095A2 (en) * 1982-08-17 1984-02-22 Dai Nippon Insatsu Kabushiki Kaisha Method and device for injection molding articles while simultaneously forming patterns thereon

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779871A1 (en) * 1965-06-18 1974-02-28 Goodyear Tire & Rubber PROCESS FOR MANUFACTURING FOAMED MOLDED PIECES
DE2126587A1 (en) * 1970-06-06 1971-12-16 Cromton Plastic Ltd Process for the production of multi-layer articles from foamed plastic

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2114181A1 (en) * 1971-03-24 1972-10-12 Opel Adam Ag Cladding material - for vehicle interiors of foam and film layers drawn into mould for further injection
EP0101095A2 (en) * 1982-08-17 1984-02-22 Dai Nippon Insatsu Kabushiki Kaisha Method and device for injection molding articles while simultaneously forming patterns thereon

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431672A1 (en) * 1994-09-06 1996-03-07 Kuehnendahl Display Gmbh & Co Printing inner side of upwardly projecting edge of synthetic tablet
DE4442632B4 (en) * 1994-11-30 2004-05-06 Bayerische Motoren Werke Ag Process for the production of a molded plastic part
FR2728194A1 (en) * 1994-12-19 1996-06-21 Seb Sa Prodn. of moulded plastic parts decorated in three dimensions
DE29805254U1 (en) * 1998-03-24 1999-07-29 Hehl Injection molding machine for the production of deep-drawn parts
DE19827192A1 (en) * 1998-06-18 1999-12-23 Volkswagen Ag Process for the production of decorated plastic parts
DE19827192B4 (en) * 1998-06-18 2012-03-29 Volkswagen Ag Process for the production of decorated plastic parts
US7005103B2 (en) 1998-12-15 2006-02-28 Guardian Automotive Trim, Inc. Method of making a colored automotive trim product
US6187233B1 (en) 1998-12-15 2001-02-13 Guardian Automotive Trim, Inc. Automotive trim with clear top coat and method of making same
US6319438B1 (en) 1998-12-15 2001-11-20 Guardian Automotive Trim, Inc. Extruded automotive trim and method of making same
US6602591B1 (en) 1998-12-15 2003-08-05 Guardian Automotive Trim, Inc. Automotive trim with clear top coat and method of making same
WO2000035652A1 (en) * 1998-12-15 2000-06-22 Guardian Automotive Trim, Inc. Automotive trim with clear top coat and method of making same
DE19926143A1 (en) * 1999-06-09 2000-12-14 Volkswagen Ag Process for the application of three-dimensionally shaped foils on complex surfaces
DE19932788A1 (en) * 1999-07-14 2001-01-18 Volkswagen Ag Process for forming a flat plastic part
US7195727B2 (en) 1999-10-13 2007-03-27 Guardian Industries Corp. Extruded automotive trim and method of making same
DE19951785A1 (en) * 1999-10-27 2001-05-03 Bayerische Motoren Werke Ag Component with regions of different colors, e.g. a car body part, is made by backing a transparent film with different materials in successive steps
DE102005044235A1 (en) * 2005-09-16 2007-03-29 Volkswagen Ag System for painting exterior of plastic components of chassis of motor vehicles, comprises transparent monofilm-plastic foil integrated into the view side of the external area of the component, and a colored carrier material
EP1876087B2 (en) † 2006-07-06 2014-11-19 Roof Systems Germany GmbH Method of manufacturing a foamed vehicle component
DE102011011141A1 (en) * 2011-02-14 2012-08-16 Bayerische Motoren Werke Aktiengesellschaft Method for manufacturing molded part, involves providing film and sucking film at upper surface of partially structured or perforated tool by vacuum
DE102011011141A8 (en) * 2011-02-14 2012-10-31 Bmw Ag Method and device for producing a molded part

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