JPH0419018B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a stylish and easy way to create an automobile interior material in which the surface of a base material is covered with an ornamental member such as a woven or knitted fabric and a synthetic resin skin material. The present invention relates to a manufacturing device for automobile interior materials that can be mass-produced.

(Prior art) A synthetic resin skin material is entirely coated on the surface of a base material to which an ornament member is partially attached, and this is welded to the periphery of the ornament member. A technique for simultaneously fusing and cutting the portion covering the ornament member along the weld line is widely known, such as in Japanese Patent Publication No. 59-24008.

(Problem to be solved by the invention) However, since the synthetic resin skin material made of polyvinyl chloride resin with a foam layer used for automobile interior materials has a thickness of 2 mm or more, it is difficult to weld and melt the synthetic resin skin material. In order to do both at the same time, it is necessary to make the fusing blade higher than the weld tooth pattern. However, if the fusing blade is set too high, the pressure applied to the welded part of the weld tooth pattern becomes small, making it difficult to form a clear weld pattern.
Therefore, if the press pressure is increased or the high-frequency current is increased in order to produce a clear weld pattern, the problem arises that the fusing blade digs deeply into the synthetic resin skin material, causing the high-frequency current to concentrate on the fusing blade and causing frequent sparks. Therefore, generally, the height of the fusing blade is lowered without increasing the press pressure to prevent the synthetic resin skin material from fusing, and the thinned fusing part is manually cut off. In addition, in the case of ornamental members made of raised fabric, there is a problem in that the excess thickness of the synthetic resin skin material generated during high-frequency welding causes the raised fabric at the weld line to collapse, resulting in a whitening phenomenon.

(Means for Solving the Problems) The present invention solves the above-mentioned problems by partially pasting an ornament member and further placing a base material coated with a synthetic resin skin material. An upper surface plate that faces the lower surface plate and can move up and down is provided, and a synthetic resin skin material is welded to the periphery of the ornament member on either the upper or lower surface plate, and a weld tooth type with a fusing blade is used to weld and cut it. The present invention is characterized in that it is provided with a vertically movable suction device that adsorbs and peels off the synthetic resin skin material of the portion covering the ornament member.

(Function) In the device constructed in this way, the ornament member is partially pasted, and the upper surface plate is placed on top of the base material covered with a synthetic resin skin material. The surface plate is lowered, and at the same time or immediately before the upper and lower surface plates sandwich the base material and form the molds together, a suction device is driven to adsorb the synthetic resin skin material covering the ornament member. If the synthetic resin skin material is lifted up so that it does not adhere to the inner periphery of the weld line of the ornament member, and a high frequency current is applied to the weld tooth shape with a fusing blade, a whitening phenomenon will occur on the periphery of the ornament member. The synthetic resin skin material is welded without causing any damage, and the peripheral edge of the synthetic resin skin material covering the ornament member is thinned by the fusing blade, so if the suction device is raised, it will be possible to weld the synthetic resin skin material covering the ornament member. The synthetic resin skin material in the area where it is attached will be automatically separated and peeled off.

(Example) Next, the present invention will be explained in detail based on the first example shown in FIG.
Vinyl chloride resin, on which an ornament member 2 such as a woven fabric or knitted fabric made of polyester or polyamide fiber with a diameter of 0.5 to 10 mm and a softening point of 70°C to 120°C is partially attached, and a foam layer is further laminated on the back side; It is a lower surface plate that receives a base material 4 completely covered with a synthetic resin skin material 3 made of thermoplastic resin such as polyethylene resin, and 1a is an air blowing pipe provided on the surface plate 1, The air blowing pipe 1a blows air between the synthetic resin skin material 3 and the ornament member 2,
This is for inflating the synthetic resin skin material 3. Reference numeral 5 denotes an upper surface plate which is provided opposite to the lower surface plate 1 and is movable up and down, and a weld tooth mold 6 with a fusing blade 6a is vertically provided on the surface plate 5. 7
is a vertically movable suction device attached to a surface plate 5, and this suction device 7 connects a suction pipe 9 to a suction cup 8 with a spring 1.
It is connected like a universal joint to a mounting base 17 via a bellows 11 having a built-in shape-retaining spring, and the positive pressure from the air blowing pipe 1a and the suction device 7
The synthetic resin skin material 3 is attracted by the negative pressure and floats up from the ornament member 2, and welding is performed in a state where it is separated from the inner peripheral edge of the welding line of the ornament member 2. Then, the synthetic resin skin material 3 is separated by the bellows 11, which tends to shrink upward due to negative pressure, at the thinned portion by the fusing blade. Moreover, FIG. 2 shows a second embodiment,
The suction device 7 has a suction cup 8 attached to a mounting base 17 connected to a suction pipe 9, and is movable up and down by a cylinder 12 provided on a surface plate 5. The resin-based skin material 3 is raised and separated after welding. Further, FIG. 3 shows a third embodiment, in which the suction device 7 includes an inverted bowl-shaped portion 13 with pores and an outer circumferential shape that is approximately the same as the outer circumferential shape of the ornament member 2. It consists of a cylinder 14 that moves up and down, and applies positive pressure between the lower surface plate 1 and the inverted bowl-shaped part 13, and negative pressure between the upper surface plate 5 and the inverted bowl-shaped part 13. The synthetic resin skin material 3 is adsorbed. After adsorption, welding is performed, and after welding, the cylinder 14 is operated to raise the inverted bowl-shaped portion 13, and the thinned synthetic resin skin material 3 is separated. 15 is a sealing material provided around the lower end of the inverted bowl-shaped portion 13. In this third embodiment, the synthetic resin skin material is made to rise steeply from the ornament member by the inverted bowl-shaped part.
By increasing the distance between the synthetic resin skin material and the ornament member, a sharper cut line can be obtained than in the first and second embodiments.

In the embodiment, the weld tooth mold 6 with the fusing blade 6a and the suction device 7 are provided on the upper surface plate 5, and the air blowing pipe 1a is provided on the lower surface plate 1, but these are installed upside down. Of course, it is possible.

(Effects of the Invention) As is clear from the above description, in the present invention, when the synthetic resin skin material is welded to the peripheral edge of the ornament member, the synthetic resin skin material does not come into close contact with the inner peripheral edge of the welding line of the ornament member. In this way, welding is performed with the synthetic resin skin material lifted up using a suction device, so the parts of the ornament parts along the welding line are not affected by heat and whitening occurs. Moreover, the synthetic resin skin material that has been thinned by the fusing blade is automatically separated by the lifting of the suction device, so there is no need to manually separate it using a knife or the like as in the past, which saves labor. This, combined with the advantage of being able to mass-produce high-quality automobile interior materials at a low cost, will greatly contribute to the development of the industry as it solves the problems of conventional manufacturing equipment for this type of automobile interior materials. be.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing a first embodiment of the present invention, FIG. 2 is a partially cutaway front view showing a second embodiment of the present invention, and FIG. 3 is a partially cutaway front view showing a third embodiment of the present invention. It is a partially cutaway front view showing an example. 1: surface plate, 2: ornament member, 3: synthetic resin skin material, 4: base material, 5: surface plate, 6: weld tooth mold, 6a: fusing blade, 7: suction device.

Claims (1)

[Claims] 1. An upper surface plate 5 is provided which is movable up and down and faces a lower surface plate 1 on which a base material 4 on which an ornament member 2 is partially attached and further covered with a synthetic resin skin material 3 is placed, and which is movable up and down. A synthetic resin skin material 3 is welded to the periphery of the ornament member 2 on either the upper or lower surface plate 5,
The automobile is characterized in that it is provided with a weld tooth mold 6 with a cutting blade 6a that melts and cuts it, and is equipped with a vertically movable suction device 7 that adsorbs and peels off the synthetic resin skin material 3 covering the ornament member 2. Manufacturing equipment for interior materials.