JPS5815147Y2 - mold structure - Google Patents

Description

[Detailed description of the invention] This invention relates to a mold structure that enables the production of plaster models and resin models with high precision.

The conventional mold structure of this type of model consists of a support frame attached to a pedestal, a surface layer made of gypsum or resin, a medium layer made of glass cloth, microwave oven, etc., and a back-up layer made of gypsum to back them up. It had a structure in which the molded parts of the model were solidified.

In such a mold structure, since the medium layer cannot maintain its shape by itself, a mold made of expanded polystyrene is required, leading to high costs.

Furthermore, this method has the disadvantage that when the media layers are laminated, the glass cloth, resin, etc. are scattered with dust, which infects the operator and the working environment.

Furthermore, since the mold itself is made of a composite material mainly composed of resin and gypsum and the molded parts of the model are individually molded, the process of solidification of the molded model parts at the time of manufacture depends on the unique physical properties of the material and the composite conditions. Because of this, it was not possible to produce highly accurate models because of expansion and contraction, warping, distortion, etc.

The object of this invention is to obtain a mold structure that can eliminate the above-mentioned conventional drawbacks.

Next, the present invention will be explained in more detail with reference to embodiments shown in the accompanying drawings.

In the figure, numeral 1 is a pedestal, 2 is a support frame attached to the pedestal 1, and a wire mesh 3 is attached to the upper end by clips or welding.

Reference numeral 4 is a composite material, which is a layered model molded part, and the surface layer 4a is generally made of resin, plaster, etc.
It is formed of a medium layer 4b made of resin or the like, and a backup layer 4C made of gypsum material to back them up.

With the mold having the above structure, even if the material solidifies during the process of molding the model molding part 4, the wire mesh 3 suppresses expansion/contraction, warpage, distortion, etc. of the material, so that the model can be manufactured with high precision.

Further, since the wire mesh 3 serves as a reinforcing material, deformation of the model molded portion can be prevented, and a highly accurate model can be manufactured.

As explained above, in this invention, since the wire mesh 3 is interposed inside the model molded part 4, the shape can be maintained by itself, and the work of laminating the medium layer 4b is not done using a waste mold as in the conventional method. There is no need for it, and the production cost can be greatly reduced.

Furthermore, since the rigidity of the medium layer 4b is increased by the wire mesh 3, the thickness of the laminated portion can be minimized, making it possible to reduce dust during lamination work and protect workers and the working environment. This has the effect of contributing to the reduction of materials.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the mold structure according to the present invention, Fig. 2 is a perspective view of a wire mesh attached to the upper part of the support frame, and Fig. 3 is a sectional view taken along the line A-A in Fig. 1. . 1...Pedestal, 2...Support frame, 3...
...Wire mesh, 4...Composite material, 4a...
・Surface layer, 4b... Media layer, 4C...
Backup layer.

Claims (1)

[Scope of utility model registration request] In a mold structure in which a model molded part is supported on a pedestal via a support frame, the model molded part is fixed to the support frame and can hold its shape independently; a medium layer formed on the surface side of the wire mesh; A mold structure comprising a surface layer formed on the medium layer and a back-up layer formed on the back side of the wire mesh.