JPH05318510A - Method and apparatus for molding product having decorative member - Google Patents

Abstract

PURPOSE:To reduce production cost by simplifying a process for producing a molded product having a decorative member by pressing the decorative member to a skin material by a suction surface to fix the same to a part of the skin material by the adhesive applied to the decorative member. CONSTITUTION:A skin material 11 and the molten resin 10 diffused to the whole of the molding surface 1a of a lower mold are subjected to press molding between the molding surface 1a of the lower mold 1 and the molding surface 3a of an upper mold 3 and, at the same time, a decorative member 12 is pressed to the skin material 11 by a suction surface 5a. A part of the skin material 1 is pushed in the groove 2a of the decorative member molding part 2 of the lower mold 1 along with the peripheral edge part of the decorative member 12 by the ridge 4 of the upper mold 3. The decorative member 12 is bonded to a part of the skin material 11 by an adhesive 13 in such a state that the peripheral edge part of the decorative member 12 is bitten in the groove part 11a formed to a part of the skin material 11 by the ridge 4 and the groove 2a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding method and a molding apparatus for a molded product with a decorative member in which a decorative member such as an ornament is attached to a molded product such as an automobile door trim.

[0002]

2. Description of the Related Art When attaching an ornament to a molded product such as a door trim, conventionally, for example, as shown in FIG. 5, a core a1 made of metal or synthetic resin is attached to a core a1 of an ornament a in which a fabric a2 is attached. The ornament a is attached at a predetermined position by forming the claw a3 so as to project, and piercing the claw a3 into the ornament attachment part b1 of the already formed door trim b and caulking it.

[0003]

In the above-described ornament mounting method, the steps of forming the door trim b and the ornament a are separate steps, which increases the number of steps and the core material a1 of the ornament a. Therefore, there was a problem that the weight of the door trim with an ornament increased. The present invention aims to solve the above problems.

[0004]

According to the present invention, a molten resin injected onto a molding surface of a lower mold and a skin material spread on the lower mold are coated with an adhesive agent on the back surface of a non-air-permeable material. In a state where the decorative member is sucked by the suction surface of the decorative member set portion formed on a part of the molding surface of the upper mold and held by the suction force inside the decorative member set portion, the molding surface of the lower mold is lowered. Method for forming a molded product with a decorative member, in which the decorative member is pressed against the skin material by the suction surface and is joined to a part of the skin material by the adhesive while being press-molded with the molding surface of the upper mold , And a decorating member set portion that holds a non-air-permeable decorating member in a state of being sucked by suction force on a part of the molding surface of the upper die, and the upper die has the decorating member. The gist is a molding device for a molded product with a decorative member in which a suction passage communicating with a set part is formed. It is intended.

[0005]

[Function] A non-breathable decorative member is sucked onto the suction surface of the decorative member set portion formed on a part of the molding surface of the upper mold by suction force, and is melted on the molding surface of the lower mold. When the resin and the skin material stretched on the lower mold are press-molded between the molding surface of the lower mold and the molding surface of the lowered upper mold, the adsorbing surface pushes the decorative member onto the skin material. At the same time as attaching, the decoration member is fixed to a part of the skin material by the adhesive applied to the decoration member.

[0006]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it is possible to form a molded article in which a skin material and a resin base material are laminated, and at the same time, to attach the decorating member to the skin material. Since it can be one step, it is possible to simplify the manufacturing process of the molded product with the decorative member and reduce the manufacturing cost of the molded product with the decorative member. Further, since the weight of the decorative member can be reduced, it is possible to prevent the weight increase of the molded product with the decorative member due to the attachment of the decorative member. Further, since the decorative member setting portion for temporarily fixing the decorative member to the upper mold by suction force is formed, the work of setting the decorative member on the upper mold can be simplified.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to FIGS. First, a molding device for stamping a vehicle door trim will be described.
A molding surface 1 corresponding to the shape of the door trim is formed on the upper surface of the lower mold 1.
a is formed, and a decorative member molding portion 2 in which a groove 2a is provided in the periphery is formed in a part of the molding surface 1a, and further, the lower die 1 is injected onto the molding surface 1a. A resin flow path 1b through which the thermoplastic molten resin 10 that flows is formed.

A molding surface 3a corresponding to the molding surface 1a of the lower mold 1 is formed on the lower surface of the upper mold 3, and the molding surface 3a is formed.
In a part of a, a decorative member setting portion 5 surrounded by a protrusion 4 that protrudes into the groove 2a of the decorative member molding portion 2 of the lower mold 1 when the upper mold 3 descends is formed into a hole opening downward. An adsorbing surface 5a for adsorbing the decorative member 12 is formed on the inner wall surface of the decorative member setting portion 5.

The upper mold 3 is formed with a suction flow path 6 which communicates between the vacuum suction pipe 7 connected to the upper mold 3 and the interior of the decorative member setting portion 5, and the suction flow path 6 is decorated. A large number of suction passages 6a to 6a which are adjacently provided above the member setting portion 5 and communicate with each other in the decorative member setting portion 5, a duct portion 6b connected to the upper end of each suction passage 6a, and this duct. A communication path 6c is formed vertically between the portion 6b and the evacuation line 7.

When stamping molding the molded product S with a decorative member using the above-described molding apparatus, the thermoplastic molten resin 10 is fed to the resin flow path 1b of the lower mold 1 and onto the molding surface 1a. It is injected, and the skin material 11 is made to enter between the lower mold 1 and the upper mold 3 and spread on the lower mold 1.

On the other hand, a non-breathable decorating member 12 whose back surface is previously coated with an adhesive 13 by sucking air through the suction flow path 6 of the upper mold 3 has its back surface facing down, and a decorating member setting portion. The decoration member 12 is held in the decoration member setting section 5 by suction force by adsorbing to the suction surface 5a of the decoration member 5.

The decorative member 12 is the fabric 1 on the front side thereof.
2a and a soft synthetic resin layer 1 coated on the back surface of the fabric 12a to make the decorative member 12 air-impermeable.
2b is laminated and formed, and as the decoration member 12, a carpet, a pocket member, or the like is applied in addition to the ornament.

In this state, the upper die 3 is lowered onto the lower die 1, and after the upper die 3 is lowered onto the lower die 1, the decorating member 1 is formed.
When the suction for 2 is stopped after all molding is completed,
The skin material 11 and the molten resin 10 diffused over the entire molding surface 1a of the lower mold are press-molded between the molding surface 1a of the lower mold 1 and the molding surface 3a of the upper mold 3, and at the same time, the decorative member 12 is adsorbed. The surface 5a is pressed against the skin material 11, and a part of the skin material 11 is formed by the protrusions 4 of the upper mold 3 along with the peripheral edge portion of the decorative member 12 in the groove 2a of the decorative member molding portion 2 of the lower mold 1. When the decorative member 12 is pressed into the skin and the peripheral edge of the decorative member 12 bites into the groove portion 11a formed in a part of the skin material 11 by the protrusion 4 and the groove 2a, the decorative member 12 is covered with the adhesive 13. It is joined to a part of the material 11.

When the press-molded molten resin 10 is solidified, the molded skin material 11 and the resin base material 15 molded by solidifying the molten resin 10 are laminated and the decoration member 12 is formed.
A decorative member-attached molded product S, in which a part of the skin material 11 is joined by an adhesive 13, is molded.

Next, the operation and effect of the embodiment having the above-mentioned structure will be described. In this example, the molten resin 1 injected onto the molding surface 1a of the lower mold 1 when molding the molded product S with a decorative member
0 and the skin material 11 spread on the lower mold 1 with the adhesive 1
3 is applied to the rear surface of the non-breathable decorative member 12 is the upper mold 3
Of the lower die 1 while being sucked by the suction surface 5a of the decorative member setting portion 5 formed on a part of the molding surface 3a and held by the suction force in the decorative member setting portion 5 The decorative member 12 is pressed against the skin material 11 by the suction surface 5a and bonded to a part of the skin material 11 by the adhesive 13 while being press-molded between the molding surface 3a of the upper mold 3 and the molding surface 3a. is there.

Therefore, the decorative member 12 can be attached to the skin material 11 at the same time when a molded product in which the skin material 11 and the resin base material 15 are laminated can be formed, and two steps can be made one step. The manufacturing process of the molded product S with a decorative member can be simplified, and the manufacturing cost of the molded product S with a decorative material can be reduced.

Further, since the weight of the decorative member 12 can be reduced, the weight increase of the decorative member-attached molded product S due to the attachment of the decorative member 12 can be suppressed.

Further, since the decorative member setting portion 5 for temporarily fixing the decorative member 12 by the suction force is formed on the upper mold 3, the work of setting the decorative member 12 on the upper mold 3 can be simplified. You can

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a molding apparatus illustrating a method for molding a molded product with a decorative member according to an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional view of a main part of an upper die.

FIG. 3 is a vertical cross-sectional view of a molded product with a decorative member.

FIG. 4 is an enlarged vertical cross-sectional view of a main part of a molded product with a decorative member.

FIG. 5 is a vertical cross-sectional view of a main part of a door trim with an ornament for explaining a conventional ornament attachment structure.

[Explanation of symbols]

 1 Lower mold 1a Molding surface 3 Upper mold 3a Molding surface 5 Decorative member set part 5a Adsorption surface 6 Suction channel 10 Molten resin 11 Skin material 12 Decorative member 13 Adhesive S Molded product with decorative member

Claims (2)

[Claims] 1. A non-breathable decorative member having a molten resin injected onto the molding surface of a lower mold, a skin material spread on the lower mold, and an adhesive applied on the back surface of the upper mold. In a state of being sucked by the suction surface of the decorative member set portion formed on a part of the molding surface and being held by the suction force in the decorative member set portion, the lower mold surface and the lowered upper mold surface A method of forming a molded product with a decorative member, comprising: pressing the decorative member against a skin material by the suction surface and bonding the same to a part of the skin material with the adhesive while press-molding between them. 2. A decorating member set portion for holding a non-breathable decorating member in a state of being sucked by a suction force is formed on a part of a molding surface of the upper die, and the decorating member is set on the upper die. A molding apparatus for a molded product with a decorative member, characterized in that a suction flow path communicating with the decorative member setting section is formed.