JPH0653106U - Tile mold - Google Patents

Abstract

(57) [Abstract] [Purpose] Providing a mold structure that can uniformly apply pressure to a tile with a large uneven surface and to deform the molded body.
Prevent problems such as uneven glaze. [Structure] A frame mold 2, a front mold 4 having a concavo-convex molding surface 3 for molding a concavo-convex pattern of a tile 1, and a large number of split molds 5, and a cylinder 9 arranged under each split mold 5.
The structure is such that they communicate with each other via a common base 10 filled with hydraulic oil 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a molding die that can be uniformly pressure-molded over the entire surface of a tile, and is particularly used as a molding die of a tile having a large unevenness in a concavo-convex pattern.

[0002]

[Prior art]

 In the conventional pressure mold for tiles, a kneaded material, which is a raw material filled in a molding recess surrounded by a frame mold, is added by a front mold for molding the front surface of the tile and a back mold for molding the back surface of the tile. It is compressed and molded.

[0003]

[Problems to be solved by the device]

 However, in this type of conventional mold structure, the pressure applied is constant over the entire structure, so even when flat tiles with a flat tile surface are formed, uniform tiles can be formed. When molding a tile having a large uneven shape, the pressure applied was uneven in some parts, and it was not possible to make a tile compact that was uniformly compressed. In addition, there is a problem that the molded body is deformed due to this, and the water absorption speed is different due to the different pressurizing pressure when molding each part of the tile, resulting in uneven glaze.

[0004]

[Means for Solving the Problems]

 The mold of the tile according to the present invention comprises a frame mold, a front mold having an uneven molding surface, and a back mold composed of a large number of divided molds, each of the divided molds being a cylinder filled with a working fluid. Structured, these cylinders communicate with a sealed common base.

[0005]

[Action]

 The back mold that molds the back side of the uneven tile is composed of multiple split molds with a cylinder structure filled with working fluid, so the part where the pressure is high corresponds to that part. Compared to other split types, the split type can drop earlier to release the pressurizing pressure, and the escaped pressure increases the split type corresponding to the part where the pressurizing pressure becomes low. As a result, it is possible to form uneven tiles that are pressed with a uniform pressure.

[0006]

【Example】

 An embodiment of a tile mold according to the present invention will be described below with reference to the drawings. 1 to 3 sequentially show a molding process using a tile mold according to the present invention. As shown in FIG. 3, this mold molds a tile 1 having an uneven pattern with large steps on the surface side. It is a thing. The mold comprises a frame mold 2, a front mold 4 having a concave-convex molding surface 3 for molding the concave-convex pattern of the tile 1, and a back mold 6 composed of a large number of split molds 5. Each has a structure of a cylinder 9 filled with hydraulic oil 8. The cylinders 9 of the split mold 5 are communicated with each other in the sealed common base 10.

The positional relationship shown in FIG. 1 is the original position of the molding die before molding, and at this time, the surfaces of the frame die 2 and the back die 6 are flush with each other, and the cylinder 9 of each split die 5 has the same hydraulic pressure. It depends. Then, as shown in FIG. 2, the back mold 6 is lowered to a predetermined position in the frame mold 2, and a molding recess 11 surrounded by the upper surface of the back mold 6 and the side surface of the frame mold 2 is formed. The kneaded clay 12 is filled in the molding recess 11. This filling is performed, for example, by passing a powder box for filling the raw material on the upper surface of the frame mold 2 and filling the same with a uniform thickness.

In this way, the front mold 4 is lowered with respect to the molding recess 11 filled with the kneaded clay 12 by the action of a cylinder mechanism (not shown), for example. Then, each of the split molds 5 has a structure of a cylinder 9 in which a back mold 6 for molding the back surface side of the tile having an uneven pattern is filled with hydraulic oil 8, and these cylinders 9 are sealed in a common base 10 As for the part where the pressurizing pressure is high, the split type corresponding to that part descends earlier than the other split type, and the pressurizing pressure of that part is released.

With respect to this escaped pressure, the split mold corresponding to the portion where the pressurizing pressure becomes low is raised to raise the pressurizing pressure at this portion, and as a result, the unevenness that is pressed at a uniform pressure is obtained. Shaped tiles can be molded.

It should be noted that the tile 1 having an uneven shape with a large level difference can be uneven on the back surface side as well, but the shape of the tile 1 on the back surface does not need to be particularly flat. As a product, there is no particular problem.

[0011]

[Effect of device]

 As described above, according to the present invention, even a tile having an uneven pattern with a large step can be formed over the entire surface by a uniform pressure. Therefore, it is possible to prevent deformation of the molding tile and uneven glaze.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state before starting the molding of a tile molding die according to the present invention.

FIG. 2 is a cross-sectional view showing a state of the tile forming die according to the present invention during filling with kneaded clay.

FIG. 3 is a cross-sectional view showing a state of the tile molding die according to the present invention during pressure molding.

[Explanation of symbols]

 1 ... Tile 2 ... Frame type 4 ... Front type 5 ... Split type 6 ... Back type 8 ... Hydraulic oil 9 ... Cylinder 10 ... Common base 11 ... Molding recess

Claims (1)

[Scope of utility model registration request] 1. A frame mold, a front mold having an uneven molding surface, and a back mold composed of a large number of split molds, each of the split molds having a cylinder structure filled with a working fluid. A mold for tiles, characterized in that the cylinder is connected to a closed common base.