JP2868437B2 - Method and apparatus for manufacturing patterned tile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a patterned tile having spots and stripes.

[0002]

2. Description of the Related Art Conventionally, a tile having a spot pattern as shown in FIG. 5 is prepared by first filling a kneaded material for tile in a concave portion of a lower mold (die) and then forming a pattern on the kneaded material for tile. It is manufactured by a method of pressing together with an upper die after adding granules for use.

[0003]

However, in the conventional manufacturing method in which the clay for tiles and the grains for patterning are pressed together, the pressing process is complicated and the loss is large. However, there is a problem that the productivity is low and the cost is high.

[0004] The present invention has been made in view of the above, and an object of the present invention is to provide a method of manufacturing a patterned tile which can be easily patterned and an apparatus for manufacturing the same.

[0005]

In order to achieve the above object, the present invention is directed to a method of pouring colored powder having a lower melting point than the firing temperature of the tile body onto the surface of the tile body after press molding and before firing. Forming a pattern, applying a glaze to the surface of the tile body on which the colored powder is placed and drying it, and firing the tile body after the glazing at a predetermined firing temperature. A method for manufacturing a tile is provided.

[0006] Further, a conveyor for transporting the tile body lying in a substantially horizontal state, a drawing device positioned above the conveyor to pour colored powder onto the tile body, and a glaze applied to the tile body on which the colored powder is placed. Spraying application device,
Provided is an apparatus for manufacturing a patterned tile having:

[0007]

[Function] Since the colored powder is poured into the tile body after press molding and the pattern is applied, the speed of the pressing process is the same as that of the conventional non-patterned tile. Since the patterning can be performed in the transfer process until the transfer to the pot, the productivity is remarkably improved as compared with the manufacturing method in which the pattern is formed by the conventional pressing process.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic front view showing an apparatus for producing a patterned tile, FIG. 2 is a vertical sectional front view showing a coloring powder drawing apparatus, FIG. 3 is a vertical side view showing a coloring powder drawing apparatus, and FIG.
5 is a partially enlarged cross-sectional view of the patterned tile, FIG. 5 is a perspective view of the patterned tile, and FIGS. 6A to 6C are plan views of the patterned tile showing the pattern of the pattern.

As shown in FIG. 4, the patterned tile 1 is composed of three elements: a tile body 2, a glaze 3, and colored powders 4, 4,. The tile main body 2 is formed by press-forming a clay for tile similarly to the conventional tile, and is fired at a high temperature and hardened as described later. As the glaze 3, the one usually used for a tile is used as it is. Also, colored powders 4, 4 ...
Is a powder made of a material that develops color and fuses (fixes) when fired, such as magnesium, magnesia, and cobalt.

FIG. 1 shows an apparatus M for producing the patterned tile 1 described above.
5 is a belt-type conveyor, on which a drawing device 6 for coloring powders 4, 4,... And a coating device 7 for glaze 3 are sequentially arranged in parallel above the conveyor 5. The drawing device 6 for the colored powders 4, 4,...
A storage box 6b having a lower front wall 6a is provided under the hopper 8 for containing the coloring powders 4, 4,..., And a drum-shaped rotor 9 is laid horizontally along the front wall 6a of the storage box 6b and the rotor 9 is moved at a low speed. The colored powders 4, 4... Are dropped onto the conveyor 5 by a fixed amount at a plurality of recesses 10, 10... Formed on the peripheral surface of the rotor 9. The recesses 10, 10,... Of the rotor 9 are aligned with the tile main bodies 2 arranged in a row on the conveyor 5, as shown in FIG.
Are formed in the axial direction so as to correspond one to one. The rotation of the rotor 9 is controlled so as to discharge the colored powders 4, 4,... In accordance with the timing at which the tile body 2 passes below. The drawing device 6 has a clearer pattern as it approaches the tile main body 2, and conversely, the coloring powder 4, 4,. Therefore, the distance between the drawing device 6 and the tile body 2 is determined according to the mode of the pattern to be drawn.

In the drawing apparatus 6, as shown in FIG. 7, for example, a cylindrical housing 6c may be provided below the hopper 8, and the rotor 9 may be arranged in the housing 6c. However, the drawing apparatus 6 shown in FIG. 7 is designed so that the outer periphery of the rotor 9 and the housing 6c rub against each other over a long period of time to form a gap, and the pressure from the hopper 8 causes the colored powders 4, 4,. There are negative effects. On the other hand, if the storage box 6b is provided below the hopper 8 and the colored powders 4, 4,... Since the pressure of 4, 4,... Is not applied, and the rotor 9 is not in contact and there is no room for the above-mentioned gap, there is no adverse effect such as the colored powder 4, 4,. There is an advantage that maintenance and replacement of the rotor 9 can be easily performed.

On the other hand, the coating device 7 sprays the glaze 3 on the surface of the tile main body 2 in a shower shape.

Next, a method of manufacturing the patterned tile 1 will be described. First, the clay for tile is pressed by a press molding machine to form the tile body 2 by a normal method. Next, as shown in FIG. 1, the tile main body 2 is laid horizontally on the conveyor 5 and passes under the drawing device 6. At this time, the coloring powders 4, 4,... Are poured off from the drawing device 6 as described above and are placed on the surface of the tile main body 2.

Next, the tile body 2 on which the colored powders 4, 4... Are placed is conveyed by the conveyor 5 and passes under the coating device 7. Here, the glaze 3 is sprayed like a shower and applied to the surface of the tile body 2, and then the glaze 3 is forcibly or naturally dried to such an extent that the glaze 3 is not sticky. In this state, the glaze 3 holds the colored powders 4, 4,..., So that the colored powders 4, 4,.

Next, the tile body 2 is placed in a furnace,
Bake at 00 ° C. Thereby, the coloring powders 4, 4,... And the glaze 3 are welded to the tile main body 2, and a spot pattern of the coloring powders 4, 4,.

The pattern of the patterned tile 1 is formed by coloring powder 4,
4 and the movement of the tile main body 2 are controlled so that, in addition to the spotted pattern, for example, FIG.
Various patterns are possible as shown in FIG. .. Are squeezed from the drawing device 6 into a plurality of colored powders 4, 4... While the tile body 2 is moved at a constant speed to form a stripe pattern as shown in FIG. Of course, if the tile main body 2 is installed obliquely on the conveyor 5, an oblique stripe pattern can be formed. Further, the coloring powder 4 and the
4 are squeezed into a thread shape and a plurality of lines are flown. On the other hand, if the tile body 2 is moved in a zigzag manner, or the drawing device 6 is reciprocated in the horizontal direction while the tile body 2 is moved straight, FIG. A meandering striped pattern as shown in FIG. Also, if the colored powders 4, 4,... Are concentrated on one place from the drawing apparatus 6, a one-point pattern as shown in FIG. In addition, it is possible to create countless patterns by combining the above methods.

[0017]

As described above, according to the present invention, a colored powder is poured into a tile body after press molding to form a pattern, and the speed of the pressing process is the same as that of a conventional tile without a pattern. Also, since the patterning can be performed in the transport process from pressing the tile body to transferring it to the sagger,
The productivity can be almost doubled as compared with a manufacturing method in which a pattern is formed by a conventional pressing process. In addition, if a plurality of drawing apparatuses are arranged and colored powders of different colors are poured off, a multicolor pattern can be drawn easily and clearly. Furthermore, since the tile body itself can be made of a single-color inexpensive material, the cost can be reduced and many other excellent effects are exhibited.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an apparatus for producing a patterned tile.

FIG. 2 is a longitudinal sectional front view showing an apparatus for drawing colored powder.

FIG. 3 is a vertical sectional side view showing a coloring powder drawing apparatus.

FIG. 4 is a partially enlarged sectional view of a tile with a pattern.

FIG. 5 is a perspective view of a patterned tile.

FIGS. 6A to 6C are plan views of patterned tiles showing pattern patterns.

FIG. 7 is a vertical sectional front view showing another drawing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Tile with a pattern 2 ... Tile body 3 ... Glaze 4,4 ... Coloring powder 5 ... Conveyor 6 ... Drawing device 7 ... Coating device M ... Production device of a tile with a pattern

Claims (2)

(57) [Claims] 1. A step of pouring colored powder having a melting point lower than the firing temperature of the tile main body on the surface of the tile main body after press molding and before firing to form a pattern, and a tile on which the colored powder is placed A method for producing a patterned tile, comprising: a step of applying a glaze to a surface of a main body and drying the glaze; and a step of firing the tile body after the glaze at a predetermined firing temperature. 2. A conveyor for laying a tile body in a substantially horizontal state and transporting the tile body, a drawing device positioned above the conveyor to pour colored powder onto the tile body, and applying a glaze to the tile body on which the colored powder is placed. A spray coating device, and a patterned tile manufacturing device comprising: