FR2688442A1 - METHOD AND DEVICE FOR MOLDING AND FINISHING AN INTERIOR COVERING PART PROVIDED WITH A COVERING OF A MOTOR VEHICLE. - Google Patents
METHOD AND DEVICE FOR MOLDING AND FINISHING AN INTERIOR COVERING PART PROVIDED WITH A COVERING OF A MOTOR VEHICLE. Download PDFInfo
- Publication number
- FR2688442A1 FR2688442A1 FR9202891A FR9202891A FR2688442A1 FR 2688442 A1 FR2688442 A1 FR 2688442A1 FR 9202891 A FR9202891 A FR 9202891A FR 9202891 A FR9202891 A FR 9202891A FR 2688442 A1 FR2688442 A1 FR 2688442A1
- Authority
- FR
- France
- Prior art keywords
- coating
- molding
- wedging member
- covering
- punch
- 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
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
- B29C45/14—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
- B29C45/14196—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 positioned around an edge of the injected part
-
- 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
-
- 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
- B29C45/14196—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 positioned around an edge of the injected part
- B29C2045/14204—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 positioned around an edge of the injected part the edges formed by an intermediate mould part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Procédé de moulage et de finition d'une pièce d'habillage intérieur d'un véhicule automobile constituée par un revêtement décoratif et par un support indéformable, qui consiste à placer le revêtement dans la partie creuse (5) d'une matrice (3), à fermer la matrice par un poinçon (4) et à injecter une matière thermoplastique dans la matrice, caractérisé par le fait que l'on repousse le revêtement au contact d'un organe de calage (10) déplaçable pour presser le revêtement au contact de la matière thermoplastique avant de déplacer ledit organe de calage dans le sens d'une libération dudit bord après refroidissement de la pièce, et de sa sortie du moule.A method of molding and finishing an interior trim part of a motor vehicle consisting of a decorative coating and a non-deformable support, which consists in placing the coating in the hollow part (5) of a die (3) , to close the die with a punch (4) and to inject a thermoplastic material into the die, characterized in that the coating is pushed back in contact with a wedging member (10) movable to press the coating in contact thermoplastic material before moving said wedging member in the direction of release of said edge after cooling of the part, and of its exit from the mold.
Description
PROCEDE ET DISPOSITIF DE MOULAGE ET DE HNFIION
D'UNE PIECE D'HABILLAGE INTERIWR MUNIE D'UN
REVETEMENT D'UN VEHICULE AUTOMOBILE
L'invention concerne un procédé et dispositif de moulage et de finition d'une pièce d'habillage intérieur munie d'un revêtement d'un véhicule automobile.MOLDING AND HNFIION METHOD AND DEVICE
OF AN INTERIWR COVERING PART PROVIDED WITH A
COVERING OF A MOTOR VEHICLE
The invention relates to a method and device for molding and finishing an interior trim piece provided with a coating for a motor vehicle.
L'invention concerne plus particulièrement le procédé de moulage d'une pièce constituée par un revêtement décoratif et par un support indéformable limité latéralement par un bord recouvert par ledit revêtement.The invention relates more particularly to the method of molding a part constituted by a decorative coating and by a non-deformable support laterally limited by an edge covered by said coating.
Les publications US-A-2070760 et FR-A-2462308 décrivent des exemples de réalisation de telles pièces sur lesquelles le revêtement est collé ou vulcanisé.The publications US-A-2070760 and FR-A-2462308 describe exemplary embodiments of such parts on which the coating is bonded or vulcanized.
La publication FR-A-2608964 décrit un procédé de moulage d'une pièce d'habillage qui consiste à placer dans la partie creuse d'une matrice le revêtement, à fermer la matrice par un poinçon puis à injecter une matière thermo-plastique dans ladite matrice pour réaliser simultanément le moulage de la pièce et l'adhérence du revêtement sur le support.The publication FR-A-2608964 describes a process for molding a covering piece which consists of placing the coating in the hollow part of a matrix, closing the matrix with a punch and then injecting a thermoplastic material into said matrix for simultaneously carrying out the molding of the part and the adhesion of the coating to the support.
Pour recouvrir le bord de la pièce démoulée par le revêtement, on réalise manuellement l'opération de finition; mais celle-ci confere à la pièce une qualité variable qui se détériore au cours de son vieillissement.To cover the edge of the part removed from the mold by the coating, the finishing operation is carried out manually; but this gives the piece a variable quality which deteriorates during its aging.
L'invention a pour objet d'améliorer le procédé de fabrication des pièces d'habillage du type prédéfini dans le but de supprimer 11 opération manuelle de finition.The object of the invention is to improve the process for manufacturing covering pieces of the predefined type with the aim of eliminating the manual finishing operation.
Selon l'invention on repousse le revêtement au contact d'un organe de calage déplaçable pour presser le revêtement au contact de la matière thermo-plastique et on déplace ledit organe de calage, dans le sens d'une libération dudit bord après refroidissement de la pièce et de sa sortie du moule. According to the invention, the coating is pushed back in contact with a displaceable wedging member in order to press the coating in contact with the thermo-plastic material and said wedging member is moved in the direction of release of said edge after cooling of the part and out of the mold.
Selon le procédé les organes de calage sont avantageusement commandés par le poinçon.According to the method, the wedging members are advantageously controlled by the punch.
A cet effet, le poinçon porte au moins un vérin de commande de déplacement de l'organe de calage actionné à 11 ouverture du moule.To this end, the punch carries at least one actuator for controlling the movement of the wedging member actuated when the mold is opened.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description faite en référence au dessin annexé dans lequel:
- la figure 1 est une représentation schématique du dispositif de
moulage,
- la figure 2 est une représentation à une plus grande échelle du
montage de I1 organe de calage,
- la figure 3 représente une section partielle de la pièce d'habillage
munie d'un bord revêtu.Other characteristics and advantages of the invention will appear on reading the description made with reference to the appended drawing in which:
- Figure 1 is a schematic representation of the device
molding,
- Figure 2 is a representation on a larger scale of
mounting of the wedging member,
- Figure 3 shows a partial section of the trim piece
with a coated edge.
La pièce d'habillage représentée à la figure 3 est constituée par un support thermoplastique 1 portant un revêtement 7. La pièce est obtenue au cours d'un processus de moulage d'une matière thermoplastique préalablement injectée dans un moule 2.The covering part shown in FIG. 3 is constituted by a thermoplastic support 1 carrying a coating 7. The part is obtained during a molding process of a thermoplastic material previously injected into a mold 2.
Comme représenté à la figure 1 le moule 2 est constitué par une matrice 3 et par un poinçon 4.As shown in FIG. 1, the mold 2 is constituted by a die 3 and by a punch 4.
La matrice 3 possède une partie creuse 5 dans laquelle débouche le conduit d'injection 6 d'une matière thermoplastique.The matrix 3 has a hollow part 5 into which opens the injection pipe 6 of a thermoplastic material.
Un revêtement décoratif formé à titre d'exemple par une feuille étirable 7 recouvre le support l et l'un de ses bords 8.A decorative covering formed, for example, by a stretchable sheet 7 covers the support 1 and one of its edges 8.
Selon l'invention, un organe de calage déplaçable assure la couverture du bord 8 de la pièce injectée l par le revêtement 7 sur sa face extérieure et sur une portion de sa face arrière et, après refroidissement de la pièce l, on déplace ledit organe de calage dans le sens d'une libération dudit bord 8 lors de l'ouverture de l'outillage. According to the invention, a displaceable wedging member covers the edge 8 of the part injected l by the coating 7 on its outer face and on a portion of its rear face and, after the part l has cooled, said member is moved wedging in the direction of release of said edge 8 when opening the tooling.
Au cours de l'injection, la matière thermoplastique est uniformément pressée au contact du bord d'appui 11 dans le pli du revêtement.During the injection, the thermoplastic material is uniformly pressed in contact with the bearing edge 11 in the fold of the coating.
A la suite du refroidissement de la pièce, il est possible d'ouvrir le moule.After the part has cooled, it is possible to open the mold.
Le poinçon 4 se soulève et la cale 10 se déplace hors de son logement 20 dans le but de libérer le bord 8 de la pièce.The punch 4 lifts and the wedge 10 moves out of its housing 20 in order to free the edge 8 of the part.
A cet effet, la cale 10 est montée à l'extrémité de la tige 12 d'un vérin incliné hydraulique 13 à double effet piloté par un distributeur 14 à commande électrique.For this purpose, the wedge 10 is mounted at the end of the rod 12 of a double-acting hydraulic inclined jack 13 controlled by a distributor 14 with electric control.
Le vérin 13 est fixé au poinçon 4 et sa tige 12 s'étend au travers du poinçon 4 jusqu'au logement 20 de la cale 10.The jack 13 is fixed to the punch 4 and its rod 12 extends through the punch 4 to the housing 20 of the wedge 10.
Le distributeur 14 est actionné par un contacteur fin de course 15 sous l'action de la poussée poinçon 4 à l'ouverture et à la fermeture du moule.The distributor 14 is actuated by a limit switch 15 under the action of the punch punch 4 when the mold is opened and closed.
La figure 1 représente schématiquement le circuit de commande du vérin 13 dans lequel une motopompe alimente le distributeur 14 d'alimentation des chambres de fluide du vérin 13 au cours de la fermeture du contacteur 15.FIG. 1 schematically represents the control circuit of the actuator 13 in which a motor-driven pump supplies the distributor 14 supplying the fluid chambers of the actuator 13 during the closing of the contactor 15.
Sans sortir du cadre de l'invention il sera bien entendu possible de faire travailler de manière synchrone plusieurs cales telles que 10 en fonction du degré de finition souhaité de la pièce d'habillage. Without departing from the scope of the invention, it will of course be possible to make several shims such as 10 work synchronously as a function of the desired degree of finish of the trim piece.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9202891A FR2688442B1 (en) | 1992-03-11 | 1992-03-11 | METHOD AND DEVICE FOR MOLDING AND FINISHING AN INTERIOR COVERING PART PROVIDED WITH A COVERING OF A MOTOR VEHICLE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9202891A FR2688442B1 (en) | 1992-03-11 | 1992-03-11 | METHOD AND DEVICE FOR MOLDING AND FINISHING AN INTERIOR COVERING PART PROVIDED WITH A COVERING OF A MOTOR VEHICLE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2688442A1 true FR2688442A1 (en) | 1993-09-17 |
| FR2688442B1 FR2688442B1 (en) | 1995-08-18 |
Family
ID=9427572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9202891A Expired - Lifetime FR2688442B1 (en) | 1992-03-11 | 1992-03-11 | METHOD AND DEVICE FOR MOLDING AND FINISHING AN INTERIOR COVERING PART PROVIDED WITH A COVERING OF A MOTOR VEHICLE. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2688442B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0720902A3 (en) * | 1995-01-06 | 1996-12-27 | Ford Motor Co | Apparatus and method for moulding a multilayered trim component |
| FR2985929A1 (en) * | 2012-01-25 | 2013-07-26 | Faurecia Interieur Ind | Tool for forming trimming element for car, has wedge moving between holding position in which wedge extends in space between inner walls of parts and separated position in which wedge is separated from parts in separated position |
| FR3081747A1 (en) * | 2018-05-31 | 2019-12-06 | Faurecia Interieur Industrie | MOLDING TOOL WITH COMPRESSED GAS-OPERATED HOLDER |
| EP3178624B1 (en) * | 2015-12-08 | 2024-09-18 | Georg Kaufmann Formenbau AG | Device and method for manufacturing composite parts |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3003903A1 (en) * | 1980-02-02 | 1981-08-13 | Rehau Plastiks Ag & Co, 8673 Rehau | Lining material for plastic injection moulding - arranged in three-part mould for invisible trimming marks |
| DE3434366A1 (en) * | 1984-09-19 | 1985-08-08 | Daimler-Benz Ag, 7000 Stuttgart | Mould for producing mouldings by backfilling film shells with a plastics moulding compound |
| JPS6141517A (en) * | 1984-08-03 | 1986-02-27 | Toyoda Gosei Co Ltd | Manufacture of molded item with skin |
| US4832307A (en) * | 1988-09-15 | 1989-05-23 | Toshiba Kikai Kabushiki Kaisha | Injection mold |
-
1992
- 1992-03-11 FR FR9202891A patent/FR2688442B1/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3003903A1 (en) * | 1980-02-02 | 1981-08-13 | Rehau Plastiks Ag & Co, 8673 Rehau | Lining material for plastic injection moulding - arranged in three-part mould for invisible trimming marks |
| JPS6141517A (en) * | 1984-08-03 | 1986-02-27 | Toyoda Gosei Co Ltd | Manufacture of molded item with skin |
| DE3434366A1 (en) * | 1984-09-19 | 1985-08-08 | Daimler-Benz Ag, 7000 Stuttgart | Mould for producing mouldings by backfilling film shells with a plastics moulding compound |
| US4832307A (en) * | 1988-09-15 | 1989-05-23 | Toshiba Kikai Kabushiki Kaisha | Injection mold |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 10, no. 196 (M-497)(2252) 10 Juillet 1986 & JP-A-61 041 517 ( TOYODA GOSEI CO. ) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0720902A3 (en) * | 1995-01-06 | 1996-12-27 | Ford Motor Co | Apparatus and method for moulding a multilayered trim component |
| US5679301A (en) * | 1995-01-06 | 1997-10-21 | Ford Motor Company | Method for molding a multilayered trim component |
| FR2985929A1 (en) * | 2012-01-25 | 2013-07-26 | Faurecia Interieur Ind | Tool for forming trimming element for car, has wedge moving between holding position in which wedge extends in space between inner walls of parts and separated position in which wedge is separated from parts in separated position |
| EP3178624B1 (en) * | 2015-12-08 | 2024-09-18 | Georg Kaufmann Formenbau AG | Device and method for manufacturing composite parts |
| FR3081747A1 (en) * | 2018-05-31 | 2019-12-06 | Faurecia Interieur Industrie | MOLDING TOOL WITH COMPRESSED GAS-OPERATED HOLDER |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2688442B1 (en) | 1995-08-18 |
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| Date | Code | Title | Description |
|---|---|---|---|
| TQ | Partial transmission of property |