JPS633794Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention selectively replaces and fixes male and female molds of a desired shape and number on male and female frame walls to produce a wide variety of models. This relates to a mold for molding polystyrene foam for the purpose of efficiently producing small quantities of products.

[Problems to be solved by the prior art and the invention]

Conventional molds, such as those shown in FIGS. 1 and 2, are not efficient or economical for producing a large number of products in small quantities.

In addition, when using a mold to obtain a different product by assembling the required parts into a mold for obtaining a specific product, the mold must be removed from the machine, transported to a designated location, assembled, and assembled. This is not desirable in terms of work efficiency.

The object of the present invention is to provide a mold for molding polystyrene foam that eliminates these conventional drawbacks.

[Means for solving problems]

The present invention is a mold for molding polystyrene foam, in which (a) male and female molds of the desired shape and number are directly fitted and fixed onto each frame wall of the male frame and female frame without using a support plate or the like as an intermediary; (b) In order to fit the mold into the fitting recesses provided on the respective frame walls of the male frame and the female frame, the shape of the fitting convex portion provided on these molding molds is such that the shape of the fitting convex portion is the same as that of the recessed portion. For example, the shape of the convex part should be the same for all male and female molds to prevent unnecessary relative rotation.
The dimensions are the same, and (c) a fixture for directly fixing the fitting convex portion provided on the molding die to the fitting concave portion provided on the frame wall is provided on the convex portion. This is a mold for molding styrofoam.

[Effect]

That is, the present invention has a simple structure of male and female molds, and also has a simple structure for attaching these molds to the frame wall, making it possible to provide a mold for molding polystyrene foam at a low cost.

In addition, the work for selectively attaching and fixing the molding die to the frame wall is extremely simple and easy, and the work efficiency is extremely high. Furthermore, in the present invention, the molding die, which is fitted and fixed to the frame wall, is prevented from rotating unnecessarily relative to the frame wall, and the molding die is fixed to the frame wall by a fixture, so that the molding die is fixed to the frame wall. When replacing and fixing, there is little axis misalignment between the male and female molds, and molded products with high precision can always be obtained.

〔Example〕

The configuration of the present invention will be described below with reference to embodiments.

In the embodiment drawings FIGS. 3 to 8, (a) male and female molding molds 4, 3 of the required shape and the required number are placed on each frame wall 2, 1 of the male frame and female frame using a support plate or the like as an intermediary. It is fixed by a fixing member 11 such as a bolt that is directly fitted into the housing.

(B) These molding molds are used to fit the molding molds 4 and 3 into the fitting recesses provided in each of the male and female frame walls 2 and 1 (for example, see A in FIG. 7A and D in FIG. 8A). The fitting convex part provided on the mold (for example, No. 1 in Figure 5)
0, 10 in Figure 6) is made into a rectangular or other appropriate shape so that the convex part does not rotate relative to the concave part, and the shape of the convex part is made into a rectangular or other appropriate shape for all male and female molds. The shapes are the same and have the same dimensions. (See Figures 3 and 4) In addition to the shapes described above, the shape of the periphery of the fitting convex portion may be a square, a rectangle, a combination of a curved line and a straight line,
etc. can be selected as appropriate. Furthermore, (c) a fixture for directly fixing the fitting convex portion provided on the molding die to the fitting concave portion provided on the frame wall (Fig. 3,
4 (see 11)) is arranged on the convex portion (see 11 in FIG. 5 and 10 and 11 in FIG. 8A).

(d) In the drawing, a back plate 8 is attached to the back of the female molding die 3 via a connector 7, and a heating steam chamber,
A cooling room is configured. (See FIGS. 5, 6, and 7A and 7B) [Effects of the invention] The structure of the invention is as described above, and has the following effects.

(b) The structure of the molding mold, especially the shape of the fitting convex part for fitting the molding mold into the male and female frame walls, is the same shape and size for all molds, so the structure is simple. The cost required for molding molds is minimal.

(b) Since the structure of the fitting protrusion provided on the molding mold is the same and simple for all molds, selective removal and attachment of the molding mold to the male and female frame walls is facilitated. You can improve your work efficiency.

(c) Specify the shape of the fitting convex portion of the molding die relative to the male and female frame walls to be rectangular or otherwise to prevent the molding die from rotating unnecessarily relative to the frame wall, and each molding die By attaching and detaching the molds directly to the frame wall without using any intervening members, we have taken care to prevent the axes of the male and female molds from becoming misaligned as much as possible when attaching and detaching the molds to the frame wall.As a result, accuracy has been improved. You can get high quality products.

As described above, the present invention has practical effects such as providing a molding die at a low cost, improving work efficiency, and further improving product precision.

[Brief description of the drawings]

1 and 2 are cross-sectional views of conventional molds, with FIG. 1 showing the female mold and FIG. 2 showing the male mold. FIG. 3 and the following are examples of the present invention. FIG. 3 is a front view showing a female molding die fitted into a female frame, and FIG. 4 showing a male molding die fitted into a male frame. Figures 5 and 6 refer to Figures 3 and 4 above.
This is a longitudinal view of the situation. The heating steam piping is omitted in both figures. 7 and 8 are explanatory diagrams of fitting the molding die into the frame. FIG. 7 shows the relationship between the female frame and the female molding die, and FIG. 8 shows the relationship between the male frame and the male molding die. In the drawings, :Female type, :Male type, 1:Female frame wall,
2: Male frame wall, 3: Female mold, 4: Male mold,
5: Product extrusion rod, 6: Raw material input pipe, 7: Connection rod,
8: Back plate, 9: Cooling water pipe, 10: Fitting convex part,
11: Fixture, A, U, E: Fitting concave and convex portion, Ll: Length of two adjacent pieces of rectangular fitting convex.

Claims (1)

[Scope of Claim for Utility Model Registration] In a mold for molding polystyrene foam, (a) for each frame wall of a male frame and a female frame, male and female molds of the required shape and number are installed without using a support plate or the like as an intermediary; In addition to directly fitting and fixing, (b) In order to fit the mold into the fitting recesses provided on the respective frame walls of the male frame and female frame, the shape of the fitting protrusion provided on these molding molds should be adjusted accordingly. For example, the convex part is made into a rectangular or other appropriate shape so that it does not rotate relative to the concave part, and the shape and size of the convex part are the same for all male and female molds, and ( c) A mold for molding polystyrene foam, characterized in that a fixture for directly fixing the fitting protrusion provided on the molding die to the fitting recess provided in the frame wall is provided in the protrusion.