JPH046545B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a laminate in which the laminated materials are prevented from shifting during pressure forming of the laminate.

[Prior art]

Conventionally, a method for preventing misalignment of laminated materials during laminate forming has been to use a hard material such as metal or a laminate as a spacer. In this method, the height of the laminate after forming,
The height of the spacer had to be determined precisely; if the spacer was too high, sufficient pressure would not be applied to the laminated material, resulting in scratches in the resulting laminate or damage to the upper heating plate. Further, if the spacer is too low, the spacer cannot be supported by the upper and lower heating plates, and the purpose of preventing the laminated material from shifting cannot be achieved, which is a drawback.

Next, a method of attaching a stopper to stop the spacer was considered so that a spacer lower than the laminated material could be used, but it had the disadvantage that it could not press the upper side of the side of the laminated material. There was no way to prevent the position from shifting.

[Purpose of the invention]

As a result of studies to prevent misalignment, which could not be solved with conventional methods, the present invention prevents misalignment of the laminate by installing a rubber elastic material around or in part of the laminated materials stacked on the base plate. It was discovered and perfected that it can be prevented.

[Structure of the invention]

The present invention has a height of 0.5 to 1.5 times the stacked laminated materials 1 as shown in the examples in FIGS. 1 to 5,
A laminate board characterized in that a material 3 having rubber elasticity surrounds a part or all of the periphery of the laminate material placed on the base plate 2, and the laminate material is pressure-molded by a conventional method. This is a manufacturing method.

1 and 2 are plan views of a laminated material 1 and a material 3 having rubber elasticity (hereinafter referred to as rubber elastic body) arranged on a base plate 2, respectively. Use a square one,
This is a case where only a part of the circumference of the laminated material 1 is surrounded, and FIG. 2 shows a case where the entire circumference of the laminated material 1 is surrounded by the rubber elastic body 3.

FIGS. 3 and 4 are cross-sectional views of FIGS. 1 and 2, respectively. FIG. 5 is a sectional view during molding in FIGS. 1 and 2.

A feature of the present invention is the use of the rubber elastic body 3. This is because the rubber elastic body 3 deforms due to pressure during pressure molding and flexibly follows changes in the height of the laminated material 1. , it has the advantage of not requiring strict adjustment with the height of the final laminate, and furthermore, as shown in Figure 5, by being compressed between the upper and lower heating plates 4, the laminate material expands in the cross-sectional direction. 1 and utilizes frictional resistance against lateral forces generated by compression from above and below, which fully achieves the purpose of preventing misalignment. As the rubber elastic body 3, ordinary synthetic rubbers such as NBR and SBR can be used, but in the case of heating and pressure molding, heat-resistant materials such as silicone rubber are preferable.

The use of silicone rubber has the advantage that it can withstand repeated use and has good releasability even if it comes into contact with the laminated material.

The height of the rubber elastic body 3 is 0.5 to 1.5 times, preferably 0.7 to 1.2 times, the height of the stacked laminated materials 1, and is appropriately determined depending on the material of the laminated materials, molding conditions, etc. (Fig. 3, Figure 4).

Although the shape of the rubber elastic body 3 is not particularly specified, circular, square, polygonal, etc. cross-sectional shapes are convenient and easy to use. Furthermore, the rubber elastic body 3 is installed on the base plate 2 at a position where it comes into contact with the end surface 1a of the laminated material 1 during the above-mentioned pressure molding (Fig. 2), or at a distance of about 10 mm or less from the end surface 1a of the laminated material. position (FIG. 1) and normally does not need to be fixed on the base plate 2.

The method of the present invention can be applied to the production of any kind of laminate; however, since laminated plates containing thermoplastic materials are prone to misalignment during molding, the method of the present invention is extremely effective. It is.

〔Effect of the invention〕

According to the method of the present invention, the upper and lower heating plates compress the rubber elastic body during pressure molding, the rubber elastic body is deformed, and evenly contacts the end faces of the laminated material, thereby preventing misalignment. Furthermore, the rubber elastic body can be easily installed on the base plate. When silicone rubber is used as the rubber elastic body, it has good releasability from the laminated material, so it completely prevents misalignment, which is a drawback of conventional methods, and reduces the time required to adjust the position, height, etc. of the misalignment prevention material. It has the advantage of being shortened and the yield is improved, so it has extremely great industrial value.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are plan views of the laminated material and the rubber elastic body arranged on the base plate, respectively.
3 is a sectional view of FIG. 1, and FIG. 4 is a sectional view of FIG. 2. FIG. 5 is a sectional view of FIGS. 1 and 2 during molding. 1: Laminated material, 2: Base plate, 3: Rubber elastic body, 4: Heat plate.

Claims (1)

[Claims] 1. Surround part or all of the periphery of the laminate material with a material that has a height 0.5 to 1.5 times that of the stacked laminate materials and has rubber elasticity, and press-form the laminate material using a conventional method. A method for manufacturing a laminate, characterized by: