JPS59155023A - Method for treating terminal of molding for automobile - Google Patents

Abstract

PURPOSE:To apply an adhesive precisely and to make it readily possible to carry out the treatment of terminals without requiring a step of wiping, by spraying the adhesive using a mask applied to a cut end surface of a molding main body, and carry out insert injection molding. CONSTITUTION:After an extruded elongate molding main body is cut into a prescribed length, other parts than the cut surface are masked by for example a mask 39 having an opening 38 similar to but smaller than the shape of the cut end surface of the molding, and an adhesive is sprayed from a liquid spraying gun 32 onto the cut end surface so as to apply the adhesive to said surface. Then the cut end surface is set in an injection molding space 61 of a mold 60 followed by injection molding so that an end cap is integrated therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for terminating moldings, and in particular to the integration of end camps.

Conventionally, as shown in FIG. 1, a molding M consists of a molding body 1 made of extruded synthetic resin, a core material 2 embedded integrally within the body 1 to prevent shrinkage and provide rigidity, and the outside of the body 1. It consists of a decorative part 3 formed continuously in the longitudinal direction of the molding body on a part of the surface, and after cutting it to a predetermined length, end camp E is inserted into the end face of the eave as shown in Fig. 2. to form. The above-mentioned insert injection molding involves applying liquid adhesive to the cut end of the molding body, and inserting the molding body 1 into the end cap molding space side of the mold.
In this method, the above-mentioned cut end side is set and injection is performed, and the end camp is formed and bonded to the main body at the same time. Conventionally, in order to apply the above adhesive to the cut end surface,
It is common practice to soak a brush or sponge in liquid adhesive and apply it by hand, but this application process is very laborious and takes a lot of man-hours. There is a problem in that when even a small amount of adhesive adheres to the surface of the decorative part 3 shown in Fig. 3, it must be immediately wiped off with a solvent.

The purpose of the present invention is to eliminate the above drawbacks by spraying adhesive onto the cut surface of the molding body using a mask and then performing insert injection molding. Explain.

3 to 7 are simplified configuration diagrams showing an embodiment of the terminal processing method for automobile moldings according to the present invention. In FIGS. 3 to 5, 13 is a closed box made of iron plate. , fixed to the base 15 via the support rod 14,
An opening 31 is formed approximately in the center of one side wall 30, and a liquid paint spraying gun 32 is fixed to this opening 31. The gun 32 is equipped with a paint tank 33 and is connected to a compressed air supply pipe 34. ing. An opening 36 is formed approximately in the center of the other side wall 35 of the box body 13 facing the opening 31, and a mask opening is formed approximately in the center on the outer periphery of the opening 36 by rubber magnet sheets 37 and 37. A mask 39 having a section 38 is detachably attached. Reference numeral 40 denotes a support that supports the lower end of the mask 39 and prevents the liquid paint from dripping. The contour of the mask opening 38 formed approximately at the center of the mask 39 is similar to the shape of the cut end of the molding, and is slightly smaller.

A molding support device 5 is provided on the outside of the box body 13,
In the support device 5, a molding support base 51 is rotatably attached to a vertical adjustment bar 54 by a screw 53 via an arm 52.

The molding receiver has guides 55, 55 fixed on both sides of the base 51 to hold the molding in place, as shown in FIG. - The lower sumo wrestler adjustment bar 54 is the support tube 5
5 and is fixed with a bolt 56 so that it can be adjusted up and down. The molding support device 5 is fixed to the base body 15. Note that the mask 39 is attached to a magnet 37 as shown in FIG.
may be arranged vertically and fixed to the box body. The terminal processing device configured as described above first fixes the mask 39 to the side wall 35 with the magnet 37, and then places the molding body cut into a predetermined size on the mounting table 51 of the support stand 51, and then the cut end of the molding body Adjust the angle and height of the stand 51 so that it matches the mask opening 38.
Fix it at 6.

Since the mask 39 is fixed to the box body by the magnet 37, minute positional adjustments can be easily made by simply tapping a part of the mask with a hammer or the like. After completing the adjustment in this way, place the molding body on the support and slide it until the cut end surface comes into contact with the mask 39, and then operate the gun 32 with a lever or switch (not shown). Liquid adhesive blows out from the tip of the molding, passes through the mask opening 38, and adheres to the cut end surface of the molding to form an adhesive layer. Note that the adhesive that adheres to the mask during continuous use can be removed by removing the mask and cleaning it with a solvent or the like. Here, if the molding body is provided with a hollow section 7 as shown in FIG. 6, the adhesive will adhere not only to the cut end surface but also to the inner surface of the hollow section on the opening side.

Next, the molding body is removed from the support stand 51, and the cut end side is inserted into the injection molding space 61 of the injection mold 60 as shown in FIG. A cap is obtained, the endcamp being firmly integrated into the molding body by the adhesive layer. Especially in the type shown in Fig. 6, the hollow part 6
Synthetic resin is injected into the opening side of 1, and this injected part is also adhered to the adhesive layer, so the strength of the molding installation is improved.

As explained above, according to the present invention, adhesive can be accurately applied to the cut end surface of the molding body, and the number of man-hours required for wiping afterward can be reduced, and mass production can be achieved.

[Brief explanation of drawings]

FIGS. 1 and 2 are simplified diagrams showing an example of a conventional method for processing the ends of an automobile molding, and FIGS. 3 to 7 are simplified configurations showing an example of the method for processing the ends of an automobile molding according to the present invention. It is a diagram. 1... Molding, 13... Box body, 30.35
...Side wall, 31.36...Opening, 32...Gun,
38...Mask opening, 39...Mask, 51...
・Uke is a stand.

Claims (2)

[Claims] (1) After cutting the extruded long molding body to a predetermined size, mask the parts other than the cut end face, spray apply adhesive to the cut end face, and insert the cut end face into the injection molding space of the mold. A method for processing the terminals of an automobile molding, characterized in that the injection is carried out with a centrifugal injection, and an end cab and seven caps are integrated. (2) A method for processing an end of a molding for an automobile according to claim 1, wherein a hollow portion extending in the longitudinal direction is formed in the molding body.