JPS627486Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mold having a mechanism for wrapping the skin into the end of the core material when the skin material is pasted onto the core material by a molding method such as vacuum forming or pressure forming.

It has been conventional practice to apply a skin material such as polyurethane or polyvinyl chloride leather to the surface of a hard resin core material such as ABS resin using adhesives or fasteners at the same time as the molding or separately. If the skin is simply pasted onto the surface of the core material, the skin may peel off from the outer periphery of the core material or from the terminal parts such as openings. It is being done.

Conventionally, this winding work involves attaching or laminating a skin material 2 to a core material 1 as shown in Fig. 1, and then fixing the ends of the skin material 2 to the back end of the core material 1 in a separate process. Alternatively, as shown in FIG. 2, the skin material 2 is molded onto the core material 1 by vacuum or pressure forming and is rolled up at the same time.For example, in the case of vacuum forming, the core material 1
A method is used in which a strong vacuum is drawn from between the mold and the vacuum mold 3. However, the method shown in FIG. 1 has the disadvantage of poor work efficiency because a separate work process is required, and the method shown in FIG.
A problem has arisen in that the skin material 2 is torn when rolled up.

The present invention is intended to solve the above-mentioned conventional problems, and it is an object of the present invention to provide a vacuum forming mold that can carry out the winding process of the end of the core material at the same time as the skin is stretched.

That is, the present invention provides a vacuum forming mold with a slide block that protrudes from the mold surface and comes into contact with the end of the core material when the mold is advanced, and the vacuum is drawn from the space side surrounded by the block, the core material, and the vacuum mold. do,
The present invention is characterized in that the block can be retreated after the skin material covering the core material and the vacuum mold surface is brought into close contact with the block, the core material, and the vacuum mold.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

In the figure, 1 is a core material, 2 is a skin material, 3 is a vacuum forming mold, 4 is a slide block, 5 is a hydraulic cylinder for moving the slide block forward and backward, and 6 is a suction hole provided in the slide block for vacuuming. shows.

In the present invention, as shown in FIG. 3, the core material 1 is first positioned in the vacuum mold 3, and then the slide block 4 is moved forward to place the core material 1 a little apart from the mold 3. After positioning the skin material 2 so as to cover the mold 3 including the material 1, the skin material 2 is suctioned when vacuum is applied from the side of the space A, which is made up of the core material 1, the blocks 4, and the mold 3. being the 4th
As shown in the figure, the surface of the core material 1, the block 4, and the surface of the mold 3 are in close contact with each other. In this case, by applying the adhesive 7 to a predetermined location of the core material 1 in advance, the skin material can be adhered to the front surface of the core material 1 and the back surface of the end. Next, when the slide block 4 is moved backward, the skin material 2 is further rolled up by the amount that was in close contact with the block 4, so that a sufficient rolling process can be performed. Further, since the slide block 4 is retracted, it does not become an obstacle when removing the product from the mold, and peeling of the skin-wrapped portion can also be prevented.

Although the above example has been explained using vacuum forming as an example, pressure forming may also be used. Furthermore, it goes without saying that the terminal can be fixed using a suitable fastener in the case of the present invention, instead of using adhesive.

In the present invention, as mentioned above, by providing a block with a sliding mechanism at a position corresponding to the end of the core material, the skin can be rolled up at the same time as tension forming without tearing the skin as in the conventional method. Be efficient.

[Brief explanation of the drawing]

FIGS. 1 and 2 are cross-sectional views for explaining the conventional winding method, and FIGS. 3 and 4 are cross-sectional views showing an embodiment of the present invention. 1...Core material, 2...Skin material, 3...Vacuum forming mold, 4...Slide block, 5...Hydraulic cylinder.

Claims (1)

[Scope of utility model registration request] The vacuum mold is equipped with a slide block that protrudes from the mold surface and comes into contact with the end of the core material when it is moved forward.
A vacuum is drawn from the side of the space surrounded by the block, the core material, and the vacuum mold, and the skin material covering the core material and the vacuum mold is brought into close contact with the block, the core material, and the vacuum mold, and then the block is retreated. A vacuum molding mold having a skin-wrapping mechanism characterized by the following features: