JPH06170824A - Production of tile - Google Patents

Abstract

PURPOSE:To produce a tile whose surface is roughened so as to have a natural feeling. CONSTITUTION:In the production of a tile, a body 1 for the tile, a rough surface processing material being a powder or particle composed of material quality burnt off at the baking temp. of the tile or lower and a mold 3 subjecting a material to press molding by the combination of a recessed part 3a and a projected part 3b are used. The tile is produced through a first process putting the rough surface processing material 2 in the recessed part 3a of the mold 3, a second process placing the body 1 for the tile on the rough surface processing material 2 in the recessed part 3a, a third process pressing the body 1 for the tile and the rough surface processing material 2 by the projected part 3b of the mold 3 to integrally solidify both of them under pressure and a fourth process baking the press molded product 6 consisting of the body 1 for the tile and rough surface processing material 2 solidified under pressure in the third process to burn off the rough surface processing material 2.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for manufacturing tiles.

[0002]

2. Description of the Related Art Some of the tiles currently produced have a roughened surface for the purpose of giving a natural texture. These tiles have characteristics such as being able to give an old-fashioned and solid feeling to a building, and the demand for them is increasing in recent years.
In the past, therefore, first, a tile having a thickness approximately twice the size to be obtained was fired, and the baked tile was divided into ½ thickness to manufacture the tile as described above.

[0003]

As described above, when one thick tile is divided into two, in most cases, the volume is offset to one side and the other is poor. Therefore, there is a problem that only the one with a volume is shipped as a product and the other is discarded, which is wasteful, and the cost is high due to extra work for breaking tiles. It was In addition, since the shape of the tile is not known until it is broken, it is a half-manufactured unstable manufacturing method, so there was a fatal problem that a product of constant quality could not be stably mass-produced. . In addition, even if an attempt is made to form a tile as described above by forming unevenness of a natural shape on the molding surface of the mold, it is not possible to wipe away the artificial atmosphere with the unevenness pressed by the press, and the tile is Since they all have the same uniform shape, they end up being half-finished products that do not produce a natural feel.

[0004]

In order to solve the above-mentioned problems, the present invention provides a clay for tiles, and a surface-roughened material which is powder or particles of a material which is burned at a temperature equal to or lower than the firing temperature of the tile,
Use a die that press-molds material with a combination of recesses and protrusions.If the bottom of the recess of the die corresponds to the surface of the tile, use a roughened material, and if the bottom of the recess of the die is the tile. If it corresponds to the back surface of the tile, the first step of putting the clay for tile into the concave portion of the mold, and if there is a roughened material in the concave portion, the clay for tile is used, and the clay for tile in the concave portion. If there is soil, the second step is to place the roughened material, the third step to press the clay for tiles and the roughened material together by the convex part of the mold to press them together, and the third step. It is intended to provide a method for producing a tile, which comprises a fourth step of burning a press-molded product of the compacted tile kneaded clay and the surface-roughened material to burn off the surface-roughened material.

[0005]

In the press-molded product pressed through the first step to the third step, the roughened material is bonded to the surface of the clay for tiles. Then, when the press-formed product is fired in the fourth step, the roughened material is burned out. Therefore, the surface of the baked tile has a shape in which the portion where the roughened material was present is missing. Since the surface-roughened material is powdery or granular, the tile surface that has been burnt down has a rough surface with traces of the surface-roughened material. Further, since the surface-roughened material is in the form of powder or particles and does not have a uniform shape, the surface shape of the finished tile differs from one to another.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 (a) to 1 (c) are manufacturing process diagrams of the tile, FIG. 2 is a perspective view of the press-molded product, and FIG. 3 is a perspective view of the tile. The method for manufacturing a tile according to the present invention uses a kneaded clay for tile 1, a roughened material 2, and a die 3 for press molding. As the clay for tile 1, the granular powder used in the conventional dry manufacturing method of tile is used as it is. Roughened material 2
Is a material that is burnt down at a temperature of about 1250 ° C. or lower, which is the firing temperature of tiles, such as synthetic resin, grains, and plant leaves, and is processed into powder or granules. Mold 3
Is for press-molding a material with a combination of the concave portion 3a and the convex portion 3b, and in this embodiment, the bottom surface 4 of the concave portion 3a corresponds to the surface of the tile 5. The bottom surface 4 of the recess 3a is provided with irregular asperities in order to make the surface of the tile 5 uneven to some extent.

Next, a method of manufacturing a tile will be described.
First, as shown in FIG. 1A, the roughened material 2 is put into the recess 3 a of the mold 3. The surface-roughened material 2 is used for the purpose of roughening the surface of the tile 5 to have a natural texture, and is inserted so that it can be slightly offset (first step). Next, as shown in FIG. 1B, the tile clay 1 is placed on the roughened material 2 (second step). Here, if necessary, a pigment for ceramics (if it is too strong alone, it is appropriately mixed with soil) may be interposed between the kneaded clay 1 for tile and the roughened material 2. Next, as shown in FIG. 1C, the convex portion 3 of the mold 3 is
By lowering b, the clay 1 for tile and the roughened material 2 are pressed together. As a result, the clay for tiles 1 and the surface-roughened material 2 are pressed together to form a tile-shaped press-formed product 6 as shown in FIG. Next, the press-formed product 6 is fired at about 1250 ° C. to harden the clay for tiles 1. Since the surface-roughened material 2 is completely burned down by this firing, the finished tile 5 has a form in which the portion with the surface-roughened material 2 is missing as shown in FIG. Further, at the boundary surface between the roughened material 2 and the kneaded clay for tile 1, the roughened material 2 and the kneaded clay for tile 1 are intertwined with each other. Therefore, the surface of the tile 5 after the roughened material 2 is burned down It has a rough surface. The shape of the surface of the tile 5 can be freely changed by appropriately adjusting the degree of insertion of the roughened material 2.

4 (a) to 4 (c), the bottom surface 4 of the concave portion 3a of the mold 3 corresponds to the back surface of the tile 5, and the end surface of the convex portion 3b of the mold 3 corresponds to the front surface of the tile 5. FIG. In this embodiment, as shown in FIG. 4 (a), the clay 3 for tile is put in the concave portion 3a in the first step, and as shown in FIG. 4 (b), the clay for tile 1 is roughened in the second step. The processed material 2 is placed, and as shown in FIG. 4C, the tile kneaded clay 1 and the rough surface processed material 2 are integrally press-molded. The press-formed product thus obtained is the same as the press-formed product 6 shown in FIG. 2, and if it is fired in the fourth step, the tile 5 having a rough surface is formed.

[0009]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, the surface-roughened material is superposed on the surface of the kneaded clay for tile and both are integrally press-molded,
By burning away the surface-roughened material during firing, it is possible to easily manufacture a tile whose surface has a rough texture. And, the manufacturing method of the present invention is less wasteful than the conventional method in which the baked and hardened tiles are broken, and moreover, it is low cost because it does not take much labor, and tiles of constant quality can be stably obtained. It has excellent effects such as mass production.

[Brief description of drawings]

FIG. 1A to FIG. 1C are views of a tile manufacturing process.

FIG. 2 is a perspective view of a press-formed product.

FIG. 3 is a perspective view of a tile.

FIG. 4A to FIG. 4C are views of manufacturing steps of tiles showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Kneaded clay for tile 2 ... Roughened material 3 ... Mold 3a ... Recess 3b ... Convex 4 ... Bottom 5 ... Tile 6 ... Press-formed product

Claims (1)

[Claims] 1. A kneaded clay for tile, and a surface-roughened material which is a powder or a grain of a material which is burned down at a temperature equal to or lower than the firing temperature of the tile,
Use a die that press-molds material with a combination of recesses and protrusions, and if the bottom of the recess of the die corresponds to the surface of the tile, use a roughened material, and if the bottom of the recess of the die is the tile. If corresponding to the back surface of the first step of placing the tile clay in the recess of the mold, if there is a roughened material in the recess, the tile clay,
In addition, if there is tile kneaded material in the concave part, the second step of placing the rough surface processed material, and pressing the tile kneaded material and the rough surface processed material with the convex part of the mold to solidify both Manufacture of tiles comprising three steps, and a fourth step of burning the press-molded product of the tile kneaded material and the roughened material compacted in the third step to burn off the roughened material Method.