JPS62158023A - Manufacture of fabric-filled molded body - Google Patents

Abstract

PURPOSE:To make it possible to use low cost fabric and consequently obtain a low cost product by a method wherein first a skin film layer is bonded on a fabric which is placed on a bottom force, by spraying and then a core material is placed on said layer and finally a bottom force is lowered to as to bond the skin film layer to the core material. CONSTITUTION:A fabric 4 is laid on a bottom force 5 in the predetermined region partitioned with positioning protruding pieces 5a. The end edge parts 4a of the fabric 4 are raised along the positioning protruding pieces 5a so as to fasten the terminal ends 4b of the end edge parts 4a to the upper ends 56 of the positioning protruding pieces 5a. A skin film layer 7 is formed by spraying liquid hardening resin on the fabric 4 and the bottom force 5. Before the skin film layer 7 dries, waste material as a core material 2 is put on the skin film layer 7. A door trim 1 is formed by cold-pressing the fabric 4, the skin film layer 7 and the core material 2 at about 120 deg.C. The skin film layer 7, which comes to the surface excluding the portion covered by the fabric 4, constituted the skin 3 of the door trim 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for manufacturing a fabric-attached molded article by attaching fabric to a core material via a skin film layer by press molding.

In general, fabric is pasted on the exterior of vehicle interior parts, cosmetic building materials, household electrical appliances, etc., and the material and color pattern are partially different to make the exterior look luxurious. Molded objects can be seen.

Such a fabric-attached molded article is produced by heat-pressing, for example, fabric, backing material, and core material at about 150 to 250 degrees Celsius, and then heat-pressing the fabric to a predetermined position on the core material through the backing material sandwiched in the middle. It was manufactured by fusing.

In addition, as for this kind of thing, Japanese Patent Application Laid-Open No. 60-48324
There is something like the one described in the publication.

Problems that Ming is trying to solve However, in the conventional manufacturing method of fabric-attached molded articles, press molding was performed at high temperatures for heat-sealing, so it was difficult to use fabrics that could withstand high temperatures. As a result, the types of fabrics are limited, making it difficult to select fabrics, and those that can withstand high temperatures are generally expensive, leading to an increase in the cost of fabric-attached molded products. . Incidentally, in order to use inexpensive fabric, there is a method of manufacturing by low-temperature press molding, but in this case, a process of applying adhesive to the fabric in advance is required, which causes an increase in manufacturing man-hours. There is.

In order to solve these problems, the present invention aims to solve these problems by placing a fabric on a lower mold, forming a skin film layer thereon by spraying, and applying the skin film layer to the skin film layer as described above. A core material is placed on the skin film layer, and then the upper mold is lowered to bond the fabric.

By pressing the skin film layer and the core material with the lower mold to bond the skin film layer and the core material,
The present invention is characterized in that it is a method for manufacturing a fabric-attached molded article, which is a fabric-attached molded article.

According to such a method, the skin film layer adheres to the fabric at the stage where the skin film layer is formed by spraying onto the fabric. Then, a core material is placed on top of the skin film layer and pressed. In this case, the sprayed skin film layer easily adheres to the core material, and it can be bonded at a low temperature without the need to melt and bond the backing material at a high temperature, as in the past, so the fabric material is not as resistant to heat. You can use materials that don't already exist, you can freely select materials, and you can use inexpensive materials.

Erasing squad The present invention will be explained below based on examples.

FIGS. 1 and 3 are diagrams showing an embodiment in which the present invention is applied to a door trim of an automobile.

First, to explain the structure, number 1 in Fig. 3 is a door trim as a molded article with fabric attached to the door of an automobile. A cloth 4 is provided on. This trim 1 is formed as follows.

That is, cylinder numbers 5 and 6 in FIG. 1 are a lower mold and an upper mold for press forming, and the lower mold 5 is provided with a positioning protrusion 5a, while the upper mold 6 is provided with a positioning protrusion 5a. A recess 6a of a predetermined size is formed at a position corresponding to the above. This positioning protrusion 5a protrudes, for example, by about 3 to 20 nm, and has a thickness of usually 0.2 to 3. It is set to about Onwn.

First, the fabric 4 is placed on the lower mold 5. At this time, the fabric 4 is laid in a predetermined area divided by the positioning protrusions 5a. Examples of the fabric 4 include woven fabric, nonwoven fabric, carpet, and the like. The fabric 4 is cut in advance to fit the size of the predetermined area before being laid, or it is cut outside the positioning protrusion 5a after being laid. The edge 4a of the fabric 4 is raised along the positioning protrusion 5a, and the end 4b of the edge 4a is locked to the upper end 5b of the positioning protrusion 5a.

After that, a liquid cured resin or the like is applied to the fabric 4 and the lower mold 5.
Spray on top to form a skin film layer 7. This skin film layer 7 is applied to the fabric 4 by spraying.
It will adhere to the surface. Next, before this skin film layer 7 dries, a waste product is placed on top of the skin film layer 7 as a core material 2. The core material 2 is a fibrous felt-like material using urethane chip mold layer material 1 metal resin as a binder.

After that, the upper mold 6 is lowered and the fabric 4. The skin film layer 7 and the core material 2 are cold pressed at about 120°C. The door trim 1 is formed in this way, and the skin film layer 7 that appears on the surface of the portion other than the fabric 4 becomes the outer skin 3 of the door trim 1.

During this pressing, the sprayed skin film layer 7 adheres to the core material 2 simply by cold pressing without applying high temperature to melt it, so the backing material etc. are melted at high temperature as in the conventional method. This is not necessary, and the fabric 4 is bonded to the core material 2 through the skin film layer 7 by pressing at a lower temperature than conventional ones, for example, about 120°C.

Therefore, it is not necessary to use a heat-resistant material for the fabric 4, and it is also possible to use a heat-resistant material.As a result, an appropriate material can be freely selected from a variety of materials, and an inexpensive material that is not heat-resistant can be used. can be used.

Further, since the door trim 1 can be formed in one press molding process, the door trim 1 can be manufactured easily.

By the way, the @ edge 4a of the fabric 4 is locked by the positioning protrusion 5a formed on the lower mold 5 and pressed together with the core material 2, so in the finished product as shown in FIG. Since the edge 4a is hidden within the recess 2a of the core material 2, the edge 4a is not exposed and the quality of appearance is improved.

Moreover, since waste products are used as the core material 2, even products that have been discarded can be used, leading to resource conservation.

As explained above, according to the present invention, a skin film layer is formed by spraying on the fabric placed on the lower mold, and a core material is placed on top of this skin film layer. Since the fabric-attached fabric was manufactured by placing the fabric on the fabric and press-molding it, the fabric-attached fabric can be manufactured in one step, and the fabric can be bonded to the core material through the skin film layer through low-temperature press-molding. As a result of being able to freely select fabrics, it is possible to use inexpensive fabrics and provide inexpensive products, which is a practically beneficial effect.

[Brief explanation of drawings]

1 to 3 are diagrams showing an embodiment of the method for producing a fabric-attached molded article according to the present invention, in which FIG. 1 is a sectional view showing the state of pressing, FIG. 2 is a sectional view of a door trim, and FIG. 3 is a sectional view of a door trim. is a perspective view showing a door trim. 1... Door trim (molded body with fabric) 2... Core material 4... Fabric 5... Lower mold 6... Upper mold 7... Skin film layer

Claims (1)

[Claims] After placing the fabric on the lower mold, a skin film layer is formed on this by spraying, the skin film layer is adhered to the fabric, a core material is placed on the skin film layer, and then the upper mold is placed. is lowered and presses the fabric, skin film layer, and core material with the lower die to bond the skin film layer and the core material, thereby applying the fabric to the core material through the skin film layer. A method for producing a fabric-attached molded article, characterized in that the fabric-attached molded article is formed by bonding.