JPS5815301B2 - Shibotsukitamabuchioyobi Sonoseizohou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing beads used for the seamed parts of fabrics of automobile seats, sofas, chairs, bags, cushions, and the like.

Japanese Patent Publication No. 3-047437 discloses a technique in which a decorative strip having a finite length is wound around a bobbin, and the decorative strip is pasted onto an infinite length base extruded from a base.

However, since a decorative strip having a finite length has a finite length, it is necessary to replace it with a bobbin that can be fed out from the bobbin by that length.

Therefore, the product must be a length of a bobbin-wound decorative strip.

This type of discontinuous molding method requires the labor of wide-width slitter processing to create bobbin-wound decorative strips, and the loss of the width of the slitter blade due to slitter processing is removed, and the work of replacing the roll-wound decorative strips is required. There are countless drawbacks such as time and material losses.

The present invention involves extruding and molding the heated and melted base material of the belt-shaped body of the ball-shaped body and the base material of the belt-shaped body of the polymer piece into an infinite length from a die of an extruder, and forming the belt-shaped body of the body of the ball-shaped body. The object of this invention is to use heat to bond strips of polymeric pieces in an unlimited and continuous manner, thereby eliminating the drawbacks of the conventional method.

According to the present invention, the same resin material or different resin materials are extruded from a die from an extruder, molded, and then grained into a strip of one polymer piece. It has the advantage of being able to be used at any time, eliminating loss of base materials and products, increasing manufacturing efficiency, and resulting in significant cost reductions.

Embodiments of the present invention will be described below based on the drawings.

1 is an extruder, and 2 is a die. As shown in FIG. 3, the die 2 is provided with holes 4 for forming the strip 3 of the polymer piece and holes 6 for forming the strip 5 of the bead body. There is.

The heated and melted thermoplastic synthetic resin is extruded from an extruder 1 and passes through a die 2, forming a strip of polymer pieces 3 and an air core 7.
A belt-like body 5 of a bead main body is formed of a beaded part 8 and a fin-like part 9.

The strip 3 of the polymer piece is guided to a pseudo leather grained roll 10 and passed between the upper roll 11 and the lower roll 12 of the roll 10.

The upper roll 11 has a faux leather grain pattern 1 as shown in Figure 4.
3 is engraved, and the strip 3 of the polymeric piece is attached to the upper roll 11.
, when passing between the lower rolls 12, a pseudo leather grain 14 is stamped on the upper surface thereof.

The strip 3 of the polymer piece on which the pseudo-leather grain 14 has been formed is passed through a water tank 15 and immersed in water, and cooled to form the pseudo-leather grain 1.
4 is fixed, and then lifted out of the water by guide rolls 16 and dried, and then made to face the upper surface of the band-like body 5 of the bead main body by guide rolls 17 and 18.

Further, the strip 3 of the polymer piece is placed on guide rolls 19, 19', 2.
0°20.21, 21', as shown in FIG. 2, sequentially coat the belt-like body 5 of the ball tab body (the surface with the pseudo-leather 14 becomes the outer surface).

At this time, the band-like body 3 of the polymer piece is adhered to the band-like body 5 of the bead-shaped body with an adhesive due to the molding heat possessed by the band-like body 5 of the bead-shaped body.

In this way, the strip 3 of the polymeric piece is attached to the strip 5 of the bead main body, and after being cooled and fixed in water through the water tank 22, it is taken out of the water again and dried to form a product.

As shown in FIG. 5, the grained beaded bead 23 obtained as described above includes the beveled part 8 of the belt-like body 5 of the beaded main body, and the polymerized piece from the beveled part 8 to the midway position of the finned part 9. band 3
It has a structure in which a pseudo-leather grain 14 is formed on the outer surface.

Incidentally, the weave portion 8 has a hollow core 7, which allows the weave portion 8 to be provided with appropriate elasticity.

However, this air core structure is not an essential component of the present invention, and other embodiments may include a cross-sectional structure without an air core or a cored structure.

Further, in the above embodiment, the belt-shaped body 5 of the ball tab body and the belt-shaped body 3 of the polymer piece are made of the same material, but in other embodiments of the present invention, it is also possible to construct both of them with different materials. be.

As is clear from the above-described embodiments, the present invention consists of dividing the constituent material of the bead into a strip of the bead body and a strip of polymeric pieces, and the strip of polymeric pieces is coated with pseudo-leather continuously on its surface. The molding is done by an operation, and then it is continuously adhered to the band-shaped body of the bead body using molding heat or adhered with adhesive, so the entire manufacturing process of the embossed bead is integrated. Depending on how the dies are processed, it is possible to process two or more sets of products.Furthermore, this continuous manufacturing can be performed easily and at high speed, further improving manufacturing efficiency. effective.

Therefore, according to the present invention, there is an advantage that a grained bead with a beautiful appearance and a grained fake leather surface can be obtained easily and at a low cost.

The present invention is suitable not only for the embodiments described above but also for manufacturing various types of equipment within the scope of the claims.

[Brief explanation of the drawing]

The drawings show examples of the present invention. Figure 1 is a schematic diagram showing the entire process of the manufacturing method of the present invention, and Figure 2 shows the process of attaching a strip of polymer piece to the strip of the ball body. Schematic diagram shown, 3rd
The figure is a front view of the die, FIG. 4 is a front view of a grained roll of pseudo-leather, and FIG. 5 is a partially cutaway view of the grained bead according to the present invention as viewed from the needle. 1: extruder, 2: die, 3: strip of polymer piece, 5: strip of bead body, 8: weave, 9: fin, 10:
Faux leather wrinkled roll, 14! Faux leather grain, 23: Beaded with grain.

Claims (1)

[Claims] 1. A thermoplastic synthetic resin that can be melted by an extruder is simultaneously extruded through the hole 4 that forms the strip 3 of the polymer piece of the extruder 1 mouthpiece 2 and the hole 6 that forms the strip 5 of the ball tab body to form the strip 3. A belt-like body 5 of the ball-shaped body is formed, and a belt-like body 3 of the polymer piece is formed.
The material is guided to a pseudo leather grain type roll 10 and passed between the upper roll 11 and the lower roll 12 of the roll 10 to form a pseudo leather grain 14 on the strip 3 of the polymer piece, and then passed through a water tank 15 and immersed in water. The pseudo-leather grain 14 is fixed by soaking and cooling, and the strip 3 of the polymer piece that has gone through this process is placed on the guide rolls 19, 1 to the strip 5 of the beaded body extruded through the hole 6 of the die 2.
Faux leather at 9', 20, 20', 21, 21' is 14
Belt-shaped body 5 of the body of the ball overlapped with a certain surface as the outer surface
The belt-shaped body 3 of the polymer piece is formed into a belt-shaped body 5 of the ball-shaped body by the molding heat possessed by the body. Continuous molding method for shibotsu tamabuchitoku characterized by ζ gluing, passing it through a water tank 22, immersing it in water, and cooling and fixing it.