JPS608031A - Manufacture of metal plate molding with synthetic resin portion - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a method of manufacturing a metal plate molding having a synthetic resin portion.

BACKGROUND ART In general, when synthetic resin lips R, R2 are integrally molded at predetermined locations of a metal plate molding M as shown in FIG. 1, long metal strips as shown in FIGS. 2a and 2b are used. Adhesive B is applied in advance to a predetermined location on material A using a coating roller 1, and then high-frequency baking is performed using a device 2 and cooling is performed using a cooling tank 3.

After draining, it is formed into a predetermined cross-sectional shape using a roll forming machine 4, and is also applied to a straightening machine 5 to remove twists, warps, etc., and is subjected to high-frequency baking by activating the adhesive B using a device 6.
Thereafter, the synthetic resin is extruded using an extrusion molding machine 7. However, in this step, the adhesive that has been applied with great effort is peeled off by the roll piece of the roll forming machine 4 at the part m1 of the molding M where the curvature is small, and cannot be applied to the part m2 of the molding M in the thickness direction. First, there is a drawback that repairs must be performed by brushing or the like after roll forming.

DISCLOSURE OF THE INVENTION It is an object of the present invention to provide an improved method for manufacturing moldings in order to eliminate these drawbacks.

That is, in the molding manufacturing method according to the present invention, after a long metal strip material is roll-formed into a predetermined shape to form a molding material, the molding material is straightened and adhesive is applied to predetermined locations. Thereafter, a synthetic resin portion is integrally molded using an extrusion molding machine at the location where the adhesive is applied.

The following is an explanation of the embodiments based on FIGS. 3 to 5.

In the illustrated embodiment, the synthetic resin portion R1 shown in FIG.

A metal plate molding M having R2 is manufactured, and the metal strip material A is first passed through a roll forming machine 10.
After forming the molding material A' into a predetermined cross-sectional shape, a straightening machine 11 corrects twisting, warping, etc. of the molding material that occurred during roll forming, and the adhesive placed in the straightening machine 11 The adhesive is applied to the molding material A as described later using the applicator 12 of
It is designed to be applied to designated areas.

The illustrated straightening 1111 has a base 11a through which the molding material A' is inserted, and a gear llb attached integrally with the base 11a is engaged with a drive gear llc to allow the molding material A' to pass in the axial direction into the base 11a. The drive gear llc rotates clockwise or counterclockwise to correct twisting, warping, etc. of the molding material A' that occurs during roll forming. This straightening machine 1
1, an adhesive applicator 12 is provided on the delivery side of the molding material A'. The applicator 12 has a base 11a of the straightening machine 11 and a receiver 12a arranged behind it.
and are integrally attached by supporting them together with the holder 12b. The receiver 12b is provided with an adhesive injection groove 12c on the surface facing the base 11a of the straightening machine 11 above the insertion path of the molding material A', and the adhesive is stored in the injection groove 12c via a pipe 12d. Tanks 12e are connected and arranged. The storage tank 12e
Then, the adhesive is fed into the molding material conveyance path of the receiver 12a through the injection groove 12c while being regulated by the valve 12f, and a sliding contact member 12g such as sponge or felt is provided in this conveyance path for impregnation. The adhesive can be applied to predetermined locations on the molding material A'.

The molding material A' coated with the adhesive is sent to a high-frequency baking device 13 to bake and activate the adhesive, and then passes through an extrusion molding machine 14 to form synthetic resin parts R, , R2. are integrally molded. Thereafter, the synthetic resin parts R+ and R2 are cooled through a cooling device 15 and cut into a certain size to obtain a product.

Effects of the Invention As described in Section 2, according to the method for manufacturing a molding according to the present invention, a long metal strip material is formed in advance into a molding material with a predetermined cross-sectional shape, and distortion during roll forming is eliminated. Since the adhesive is applied after straightening, there is no possibility of the adhesive being scraped off, and since the applicator moves in conjunction with the straightening machine, it is possible to accurately apply the adhesive to the predetermined surface area, making it possible to easily apply adhesive after the fact. This makes it possible to integrally mold the synthetic resin part without the need for modification, and also makes it possible to manufacture moldings with extremely high efficiency.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a metal plate molding having a synthetic resin part, FIG. 2 is an explanatory diagram showing the manufacturing process of a conventional molding, and FIG. 3 is an explanatory diagram showing the manufacturing process of a molding according to the present invention. Figures 4a and 4b are explanatory views of the straightening machine applied in the method according to the present invention, and Figures 5a and 5b are illustrations of the straightening machine applied in the method according to the present invention.
It is an explanatory view of an adhesive application device attached to the illustrated straightening machine. A: Metal strip material, A': Molding material, R
I + R2: Synthetic resin department, 10:0-ru molding machine, 11
: straightening machine, 12: adhesive coating device, 14: extrusion molding machine. Ward J'ku~1; 4th E JP-A-Sho GO-8031 (4) 115111! ! a. 2G

Claims (2)

[Claims] (1) After forming a metal plate molding material by roll-forming a long metal strip material into a predetermined cross-sectional shape,
A straightening machine that passes through the axial direction of the molding material corrects distortions in the cross-sectional shape of the molding material in the moving direction, and also applies liquid adhesive to the desired surface of the molding material to form an adhesive layer. A metal plate molding having a synthetic resin part, characterized in that the molding material on which the adhesive layer has been formed is inserted into an extrusion mold so that the synthetic resin part is continuously and integrally formed with the adhesive layer. manufacturing method. (2) The adhesive is dripped into the molding material passage of the straightening machine and applied with a sliding member such as felt or sponge arranged in the passage. A method for manufacturing a metal plate molding having a synthetic resin part.