JPS60244522A - Preparation of interior panel for vehicle - Google Patents

Abstract

PURPOSE:To simplify a process for manufacturing an interior material having two kinds of facing materials, by molding a laminate, which is obtained by laminating two kinds of facing materials onto one core material, by using a molding machine, wherein an upper press mold and lower molds split into two sections are combined, and simultaneously adhering the constitutional materials. CONSTITUTION:A first facing material 30 and a second facing material 4, both of which have different picture patterns, are placed on a first lower mold 2 and a second lower mold 12. Subsequently, the first lower mold 2 and a second lower mold 12 are slid to be allowed to approach to each other and the opposed end parts 30A, 40A of the first facing material 30 and the second facing material 40 are bonded under pressure by the press bonding parts of both molds. Succeedingly, a fibrous layered body 50 having a size covering the molding surfaces 3, 13 of both molds is arranged on the first facing material 30 and the second facing material 40 as a core material. An upper mold 22 is pressed to the arranged layered body 50 to perform molding and, after the excessive part 51B is cut off, mold clamping is released and demolding is performed to obtain a trim panel 51 having an embossed shape wherein the first facing material 30 and the second facing material 40 are adhered to the single surface of the core 50A.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method of manufacturing an interior panel for a vehicle. This relates to a method of manufacturing vehicle interior panels, such as vehicular interior panels.

(Prior Art) Conventionally, a trim plate for an automobile interior is a fibrous compression molded body formed into a predetermined shape, and is hereinafter simply referred to as a core.

) is coated with a skin material such as vinyl chloride on one side, which is the interior side of the trim board.Recently, trim boards with different colors and textures have been applied to give a soft feel and luxury to the interior side trim board surface. Two types of skin materials are applied. However, a core whose one side is covered with two types of skin materials has the disadvantage that it is difficult to mold by heating and pressing a mold. In particular, it is necessary to bond the ends of the two types of skin materials to each other, which has the drawback of requiring several steps and being difficult to manufacture.

(Problems to be Solved by the Invention) Therefore, the present invention is an attempt to solve the above-mentioned conventional drawbacks when producing an interior panel in which two types of skin materials are applied on one side. The object of the present invention is to manufacture an interior board coated with two types of skin materials, which can be easily molded by heat pressing and can be easily adhesively bonded to each other at the ends of the two types of skin materials.

(Means for Solving the Problems) Therefore, in order to solve the above-mentioned drawbacks, the means of the present invention is to separately cover one side of a core body containing fibrous material (fibrous material) and synthetic resin. When manufacturing an interior panel to which two types of skin materials are adhered by heating and pressing a mold, - the above two types of skin materials may be made of two different skin materials or two skin materials of the same material but in different colors. Two skin materials are used, and the mold has a structure consisting of a lower mold with a molding surface divided into left and right halves, and an upper mold with a molding surface that presses the combined molding surface of the lower mold. The above-mentioned two kinds of skin materials are placed so that they cover the divided molding surfaces of the lower mold and their opposing ends are located between the lower molds, the ends of the image skin materials are compressed with the lower mold, and then this After a core body containing fiber and synthetic resin is layered on top, an upper mold is placed and the upper mold and lower mold are pressed together to obtain a vehicle interior panel.

(Function) According to the present invention, two types of skin materials are placed on the molding surface of a lower mold that is divided into two parts, opposing ends of both skin materials are sandwiched between the lower molds, and then the two types of skin materials are placed on the molding surface of a lower mold that is divided into two. A thick core containing fibers and synthetic resin is placed on the core, an upper mold is placed on the core, and the lower mold and the upper mold are heated and pressed to form a predetermined shape.

That is, by heating and pressing the lower mold and the upper mold, the opposing ends of the two types of skin materials are joined, and the core body and both skin materials are formed and bonded.

(Example) Next, an example of the present invention will be described with reference to the drawings.
- First, a hot press mold 1 made of metal is prepared. This mold 1 is divided into two parts in advance, and a first lower mold 2. and a second lower mold 12, and one upper mold 22 that presses the combined first lower mold 2 and second lower mold 12. In the first lower mold 2, 3 is a molding surface for molding, 5 is a crimping part for joining the skin material, and 8 is a notch part. Similarly, in the second lower mold 12, 13 is a molding surface, 15 is a crimping part, 1
8 is a notch. 6.16, 7.27 and 17.2
Reference numeral 7 denotes a blade portion for cutting off the excess end portion of the molded body. In this example, a joint 41 between the first skin material 30 and the second skin material 40
is formed in the concave portion 51A of the trim plate, in the vicinity of the crimp portion 5 of the first lower mold 2 and the second lower mold 12.
Molding convex portions 4 and 14 are formed in the vicinity of the crimping portions 15, respectively, and four molding portions 24 corresponding to the aforementioned molding convex portions 4 and 14 are formed on the upper die 22 and the forming member 23.

In addition, when combining the first lower mold 2 and the second lower mold 12, there is a joint between the first skin material 30 and the second skin material 4o between the crimping parts 5 and 15 of the first lower mold 2 and the second lower mold 12. A predetermined clearance (gap) K is maintained for this purpose (see the imaginary line portion in Fig. 1). The upper mold 22 has a molding surface 23 large enough to press the molding surfaces 3 and 13 of the first lower mold 2 and the second lower mold 12 combined with a clearance K, and Lower mold 2
The molding surfaces 3 and 13 of the second lower mold 12 are supported at an upper position by a support member (not shown) so as to be compressible. The first lower mold 2, second lower mold 12, and upper mold 22 are each heated to a predetermined molding temperature before use.

Thus, a first skin material 30 and a second skin material 4o are arranged on the first lower mold 2 and the second lower mold 12, and both skin materials cover the molding surfaces 3 and 13 and are opposed to each other. end 30 of
A, 40A are placed so as to be located on the pressure line parts 5, 15. Suitable skin materials include non-woven fabric, cloth, resin film, or a sheet with V4 layers of foam such as polyurethane foam bonded to these.Two sheets of different materials selected from these, or two sheets of the same material with color tone and pattern are suitable. Two sheets with different values are used. An adhesive is applied to the upper surface of the skin material placed on the first lower mold 2 and the second lower mold 12, if necessary. It should be noted that if the skin material is made of a material that has adhesive properties by heating and pressing, no adhesive is required. In this example, the first skin material 3o is a gray nonwoven fabric made of polyp τ cobylene (with a basis weight of ff 1260 g/'IIt), and the second skin material 4o is a dark red nonwoven fabric made of polypropylene (
(with a basis weight of 1200 g/Td) was used.

Then, the first lower mold 2 and the second lower mold 12 are slid to approach each other, and the first skin material 30 and the second
The opposing ends 30A, 40A of the skin material 40 are crimped with the crimping parts 5.15 of both types.

Next, a fibrous carcass 50 of a size that can cover the molding surfaces 3, 13 of both molds is placed as a core on the first skin material 30 and the second skin material 40.

The carcass 50 is made of bulky layered material, so-called fleece, which is made by mixing about 30 to 50 parts of thermosetting synthetic resin powder or fiber with TSM material such as wood valve, plant fiber, or synthetic fiber. . The carcass 50 in this example has linen wool 53
Consisting of parts by weight (hereinafter simply abbreviated as parts), 22 parts of coarse hair, and 25 parts of phenolic resin, basis weight: 11.7 Ky/r
d fleece was used.

Then, the upper mold 22 is pressed onto the carcass 50 placed, thereby molding the carcass 50. The pressing conditions for the first lower mold 2 and the second lower mold 12 and the upper mold 22 are a lower mold temperature of approximately 100 to 140°C and an upper mold temperature of approximately 18°C.
Appropriate values are 0 to 250°C, clamping pressure of approximately 10 to 15 kg/d, and clamping time of approximately 1 to 5 minutes.In this example, the lower mold temperature is 1.
40℃, upper mold temperature 220℃, clamping pressure 15 to 9/<A,
The pressing time was 1 minute. In addition, during pressing, each blade part 6, 16, 7, of the first lower mold 2, second lower mold 12, and upper mold 22
27. ．． 17.27, the surplus portions 51B of the first skin material 30, the second skin 8401, and the core 50A are cut off.

Thereafter, the pressure is released and the mold is removed to obtain a trim plate 51 having a predetermined uneven shape in which the first skin material 30 and the second skin material 40 are adhered to one side of the core 50Δ. This trim plate 51 is attached to one side of the compression molded core 5OA of the carcass with a gray first skin material 30. The orange-colored second skin material 40 is applied in half, and the opposing ends 30A and 40A of the first skin material 30 and the second skin material 40 are joined to form a joint 41, and the workmanship is good. there were. Trim plate 5 of this example
1, the joint 41 between the first skin material 30 and the second skin material 40
The concave portion 51 is arranged so that it does not protrude from the surface of the trim plate 51.
A, and in order to fit a linear molding (decorative edge) 53 into the concave portion 51A, the first skin material 30
, the joint part 41 of the second skin material 40 becomes beautiful without spoiling the appearance.

Note that the first skin material 30 and the second skin material 11 of the trim plate 51
The joint portion 41 of 40 is not formed within the recessed portion.
The joint portion 41 may be treated by being attached with a molding to form a protrusion (not shown), and the joint portion 41 may be cut flush with the adhesive skin surface of the trim plate 51 and treated so as not to form a protrusion portion. (not shown).

In the above-described embodiment, the trim plate 51 is formed by stacking the carcass 50 serving as the core on the first skin material 30 and the second skin material 40 arranged in the first lower mold 2 and the second lower mold 12. A core 5OA previously formed into a predetermined shape is placed on the arranged first skin material 30 and second skin material 40, and is pressed by the first lower mold 2, the second lower mold 12, and the upper mold 22. Alternatively, a trim plate 51 on which the first skin material 30 and the second skin material 40 are adhesively molded may be formed on one side of the core 50A (see FIG. 9).

In addition, thermoplastic synthetic resins such as polypropylene about 70~
A processed molded product (not shown) obtained by extruding and pressing a mixture of 50 parts of wood powder and about 30 to 50 parts of wood flour can be used as a core to form a ceiling board or a trim board in the same way.

The processed molded product is used in the form of a plate, or one preformed into a predetermined shape such as a ceiling board or a trim board.

That is, in the present invention, a bulky carcass (fleece) containing fiber and a thermosetting synthetic resin, a pre-shaped core of the carcass, or a mixture of wood flour and thermoplastic synthetic resin are used. Processed molded bodies containing fibers and synthetic resins are used as core bodies.

In this example, a trim plate has been described, but the present invention is generally applied to vehicle interior panels such as a vehicle interior ceiling panel.

(Effects of the Invention) The present invention uses a molding structure consisting of a lower mold that is divided into two parts and an upper mold that presses the combined lower mold. An interior panel of a predetermined shape can be obtained. That is, according to the present invention, the surface material is molded into a predetermined shape and bonded together with the footwear, the core, or a core made of a mixture of wood flour and synthetic resin, and two types of material are bonded together to cover one side of the core. Since the skin materials are joined at their opposing faces, the joining of the opposing ends of the two types of skin materials, and the molding and adhesion of the core and the picture skin material can be performed simultaneously, making it easy to mold.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is an exploded view of a mold, and Fig. 2 is an enlarged cross-sectional view of the main parts, mainly the crimping parts of the first lower mold and the second lower mold. , Fig. 3 is an explanatory diagram of the process with the skin material placed on the first lower mold and the second lower mold, and Fig. 4 is an explanatory diagram of the process with the shoe body placed on the skin material with the ends pressed. , Fig. 5 is an explanatory diagram of the process in which the upper mold is clamped to the first and second lower molds, Fig. 6 is a cross-sectional view of the molded trim plate, and Fig. 7 is a diagram showing the concave portion of the trim plate. FIG. 8 is a perspective view of the trim plate, and FIG. 9 is a process explanatory diagram showing the cutting process. 1... Molding die 2... First lower die 3, 13.23... Molding surface 5.15... Crimping part 12... Second lower die 22... Upper die 30... First lower mold 30^, 40A... End portion 40... Second skin material 41... Joint portion 50... Carcass 50A... Core 51... Trim plate Applicant Nippon Sekiso Ichi Kogyo Agent Co., Ltd. Patent Attorney Oka 1) Hidehiko Figure 4 Figure 5 Figure 7 WJ

Claims (1)

[Claims] When manufacturing an interior board in which two types of skin materials are separately applied to one side of a core body formed from fibers and synthetic resin by heating and pressing a mold, the above-mentioned steps are taken. For the two types of skin materials, two skin materials made of different materials or two skin materials of the same material but with different colors are used. Using a structure consisting of an upper mold with a molding surface that presses the combined molding surface,
Arrange the two types of skin materials so that they cover the divided molding surfaces of the lower mold and their opposing ends are located between the lower molds, press the ends of the image skin materials with the lower mold, and then place them on top of this. A method for producing an interior panel for a vehicle, characterized in that after core bodies containing fiber and synthetic resin are stacked, an upper mold is placed and the upper mold and lower mold are compressed.