JPS58215230A - Forming die of compression forming machine - Google Patents

Abstract

PURPOSE:To obtain easily plural formed products of different shapes by movement of an intermediate die, by fixing the intermediate die to a lower die and fixing the intermediate die to an upper die. CONSTITUTION:When obtaining a formed product such as a formed ceiling etc., an intermediate die 14 is fixed to a lower die 13, and a base material of the ceiling is inserted between an upper die 12 and the intermediate die 14, and a formed ceiling of the first shape is obtained by clamping the upper die 12 and the intermediate die 14. To obtain a formed ceiling of the second shape, the intermediate die 14 is fixed to the upper die 12, and a base material of the ceiling is inserted between the intermediate die 14 and lower die 13 and clamped similarly. Thus, a formed ceiling of the second shape is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mold for a compression molding machine used for forming a molded ceiling of a vehicle or the like by compression molding.

As schematically shown in Fig. 1, the mold of a conventional compression molding machine is equipped with an upper mold 2 and a lower mold 3, and the upper mold 2 or the lower mold 3 is clamped using a hydraulic device or the like. A molded product is obtained by this method.

However, in order to obtain molded products with different shapes, it is necessary to replace the upper mold 2 and lower mold 3 of the mold 1 of the compression molding machine with upper molds 2 and lower molds 3 of different shapes. First, the replacement work is complicated, the work efficiency is poor, and storage space is required for the upper mold 2 and lower mold 3 to be replaced, which has the drawback of increasing costs.

An object of the present invention is to obtain a plurality of molded products with different shapes using a single compression molding machine, and in this case, there is no need to replace the upper mold and lower mold with different molds, and therefore, there is no need for storage space for the molds. First, it is easy to change from the -I molding state to another molding state, which significantly improves work efficiency.Furthermore, the manufacturing cost of the molds required to obtain multiple molded products is reduced compared to the conventional molding state. This invention provides a mold for a compression molding machine that is inexpensive compared to the manufacturing cost of a mold for molding each product separately, and this will become clear from the detailed description below with reference to the drawings.

FIG. 2 schematically shows an embodiment of a mold for a compression molding machine according to the present invention, and in this embodiment, the mold 11 of this compression molding machine is used to form a molded ceiling of a vehicle or the like. However, it is not limited to this.

The mold 11 of the compression molding machine includes an upper mold 12, a lower mold 13, and an intermediate mold 14 disposed between the upper mold 12 and the lower mold 13. 13 are respectively attached to appropriate mounting members and assembled into a compression molding machine so as to be mold-aligned by conventionally known means. The intermediate mold 14 is selectively fixed to the upper mold 12 and the lower mold 13.

As shown in FIGS. 3 and 4, the intermediate mold 14 is inserted into the lower mold 1.
3 or by fixing the intermediate mold 14 to the upper mold 12, the first and second molding parts 16 and 17 are formed, respectively. That is, as shown in FIG. 3, a first molding surface 21 on the lower surface of the upper mold 12 and a second molding surface 22 on the upper surface of the intermediate mold 14 form a first molding part 16, and as shown in FIG. As shown in FIG. 1, a second molded portion 17 is formed by the third molded product 23 on the lower surface of the intermediate mold 14 and the fourth expanded surface 24 on the second surface of the lower mold 3.

The first and second molded parts 16 and 17 have different shapes, the first molded part 16 having an arcuate cross-sectional shape with a relatively large curvature, and the second molded part 17 having a deep side part. It is formed in a cross-sectional shape having a refractive portion for an aperture. When fixing the intermediate mold 14 to the upper mold 12 or the lower mold 13, an appropriate connecting member may be used, and detailed explanation thereof will be omitted.
Further, the mold clamping operation means for the mold 11 may be performed using a conventionally known method.

The above is the configuration of one embodiment of the mold 11 of the compression molding machine according to the present invention. According to this configuration, when obtaining a molded product such as a molded ceiling in the first molding section 16, , 3rd
As shown in the figure, the intermediate mold 14 is fixed to the lower mold 13, a ceiling base material (not shown) is inserted between the upper mold 12 and the intermediate mold 14,
If the upper mold 12 and the intermediate mold 14 are clamped, a molded ceiling of the first shape is obtained, and then when a molded ceiling of the second shape is obtained in the second molding section 17, the molded ceiling of the fourth shape is obtained. As shown in the figure, the intermediate mold 14 is fixed to the upper mold 12, and the ceiling profit is transferred to the intermediate mold 1.
4 and the lower mold 13 and perform the mold clamping operation in the same manner as described above, a molded ceiling of the second shape is obtained.

According to the present invention, a plurality of molded products having different shapes can be obtained extremely easily by moving the intermediate mold, and in this case, there is no need to replace the upper mold and the lower mold, and no storage space is required for the molds. The manufacturing cost of the mold is low, making it highly economical. When using a dimension mold in a heated state, the entire mold is heated using the intermediate mold as a medium, and when changing the shape, the mold is heated again. It saves time and can significantly improve work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional explanatory diagram showing a mold of a conventional compression molding machine;
2 to 4 each schematically show an embodiment of a mold for a compression molding machine according to the present invention, and FIG. 2 is an explanatory cross-sectional view, and FIG. FIG. 4 is a cross-sectional explanatory view showing the state in which the second molded part is formed. In the figure, 11...Molding mold of a compression molding machine, 12...Upper mold,
13... Lower mold, 14... Intermediate mold, 16... First molding part, 17... Second molding part, 21, 22, 23.2
4... Molding surface, Figure 1, Figure 2, Figure 3, Figure 4

Claims (1)

[Claims] A first molding comprising an upper mold, a lower mold, and an intermediate mold disposed between the upper mold and the lower mold, and formed on the lower surface of the upper mold with the intermediate mold fixed to the lower mold. The surface and the second molding surface formed on the upper surface of the intermediate mold form a first molding part, and while the intermediate mold is fixed to the upper mold, a third molding surface formed on the lower surface of the intermediate mold is formed. A mold for a compression molding machine, characterized in that a second molding part having a shape different from the first molding part is formed by a molding surface and a fourth molding surface formed on an upper surface of a lower mold.