JPS59118436A - Manufacture of interior trimming material - Google Patents

Abstract

PURPOSE:To manufacture an interior trimming material comprising a synthetic resin frame and a facing material integral with each other at a high working efficiency, by using a pair of blow molds functioning also as molds for vacuum forming. CONSTITUTION:The facing material 3 consisting of a pellicle material 4 and a backing material 5 is placed in a pair of blow molds (functioning also as vacuum forming molds) 12, 12 oppositely placed, and then air is evacuated through evacuating holes 12a to vacuum-form the material 3 into a shape conforming to molding surfaces of the blow molds 12. Then, a thermoplastic resin is extruded through a die 13 to produce a parison 6', the blow molds are mated to each other, the parison 6' is inflated by feeding air through the tip of the die 13, thereby bringing the parison 6' into contact with the backing material 5 side of the facing material 3, and the thus produced synthetic resin frame 6 and the facing material are integrally jointed to each other. Subsequently, the molded article 11 is taken out from the mold 12, and is cut at an imaginary line to obtain two articles 1' of the interior trimming material.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an interior material, and more specifically, a synthetic resin frame is formed by blow molding using a pair of blow molds, and the outside of this synthetic resin frame is made of an upholstery material. The present invention relates to a method of manufacturing an interior material formed by coating with.

Conventionally, interior materials such as armrests, hemrests, back garnishes, and door panels of vehicles are made by manufacturing a synthetic resin frame as a core material in advance, and forming the outside separately from a bonded body of padding material, skin material, etc. The synthetic resin frame and the covering material were often bonded together using an adhesive or the like.

However, the present invention has the disadvantage that the work of individually manufacturing synthetic resin frames and individually bonding facing materials to these synthetic resin frames using adhesives or the like is complicated and does not improve work efficiency. The purpose of this is to use the blow molding method to integrally join the synthetic resin frame and the facing material to form the interior material, and also to improve the production cycle by forming multiple interior materials at once. The present invention provides a method for manufacturing an interior material that can be made into an interior material, which will become clear from the detailed description below with reference to the drawings.

Figures 1 and 2 show the method for manufacturing interior materials according to the present invention.
Each figure shows an outline of an embodiment when applied to the back garnish of a Y-dock.The back garnish 1' as an interior use 1 is formed in a shape in which 2 is bent toward both sides γ11, and the both sides 2 The upper part is formed into a roughly triangular shape with a width narrower than the lower part. The back garnish 1' is made up of a front surface layer 3 and a synthetic resin layer 1/- layer on the back side, which is the side where the back garnish is attached. In this embodiment, back garnishes 1' having the same or different shapes can be obtained at the same time, as shown in FIG. That is, as shown by imaginary lines in FIG. 2, by canting the molded product 11, a plurality of back garnishes 1' serving as interior materials can be obtained from one molded product 11.

Next, the method of the present invention will be explained in six steps with reference to FIGS. 3 to 6.

As shown in FIG. 3, a pair of vertical blow molding molds 12 are formed into a vacuum molding mold.
A plurality of facing materials 3 having a size corresponding to the shape of the interior decoration A]1 are arranged in a vacuum forming mold. This covering material 3 is formed of a covering material 4 made of cloth or the like, and a backing material 5 made of vinyl chloride notebook, foam sheet, etc. bonded to the back surface of this covering material 4. After placing the covering material 3 on this blow molding mold 12, a vacuum pump (not shown) is operated to remove the vacuum holes 12.
Air is drawn through a, and the mounting plate 3 is vacuum-formed into a shape corresponding to the molding surface of the blow-molding mold 12, as shown in FIG.

The die 1 of the blow molding machine is placed above the large blow mold 12.
3 is disposed, and is configured to extrude parinone 6' made of thermoplastic resin when the pair of blow molding molds 12 are opened. This Parinone 6' is extruded between a pair of blow molding molds 12 as shown in FIG.
2 are molded together, air is injected from the tip of the die 13, and the backing material 5 of the facing material 3 is shaped to correspond to the plurality of interior parts IVrC.
A plurality of interior materials 1 are brought into contact with the parison 6' in a suppressed state on the side.
A synthetic resin frame 6 having a shape corresponding to the above is formed in a bonded state.

After cooling the synthetic resin frame 6, the molded product 11 is taken out from the blow mold 12 and cut into the shape shown by imaginary lines in FIG. 2, thereby obtaining a plurality of back garnishes 1' as interior materials 1. In the above description, the case has been explained in which all the air is injected into the parinon 6', but if a large-diameter one is used for the IJ nozzle 6', there is no need to inject air. Furthermore, in the above-mentioned embodiment, a case was explained in which a pair of nozzles 7 are obtained;
Different shapes can be obtained from the molded product 11, such as those used for nokuganinonyu.

The following is an example of the method for producing an interior panel according to the present invention. According to this method, the synthetic resin frame and the facing material can be easily and quickly joined without using adhesives or the like. It is possible to obtain multiple interior materials from one molded product, and in this case, the interior materials can be formed into various shapes, and furthermore, it is possible to eliminate the cracks that occur during mold matching of blow molding molds, and the surface coating near mold matching. Since the end part of the material is harder than other molded parts, by setting the molding die to the matching position @full cut position, it is possible to obtain high quality interior material and improve the production cycle. It is possible to obtain a manufacturing method that allows for internal utilization.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one of a plurality of interior materials when the method of the present invention is applied to a dog. The perspective views and FIGS. 3 to 6 showing one embodiment are schematic cross-sectional views showing the manufacturing process of the molded product. In the figure, 1...interior phase, 1'...interior phase ) Kunokuganino 7yu, 3... Omoteri, 4 ・Odemori, 5.
... Backing material, 6 Synthetic resin frame, 6'... ζ linon, 11. Molded product, 12. Blow molding mold, 1; 3.
・Evening.

Claims (1)

[Claims] In a method for manufacturing an interior layer comprising a synthetic resin 71/- frame and a facing material bonded to the outside of the synthetic resin frame,
A pair of blow molding molds is formed into a vacuum molding mold, a facing material having a size corresponding to a plurality of interior materials is provided in the pair of blow molding molds, and after vacuum forming the facing material, a pair of blow molding molds is formed. A parison is extruded between the molds, all of the blow molding molds of the pair are aligned, and a synthetic resin frame of a size corresponding to multiple interior materials is integrally formed with the facing material, thereby molding compatible with multiple interior materials. A method for producing an interior material, which comprises forming a molded product and dividing the molded product to form a plurality of interior materials.