JPH0550419A - Device for molding tile with groove - Google Patents

Abstract

PURPOSE:To make it possible to mold a tile with a groove wherein at least one of the side surfaces of said groove is sloped by providing a protruding strip at the lower part of an upper mold to control sliding of a powder measure in advancing and retreating direction thereof and sloping outwardly at least one of the side surfaces of the protruding strip. CONSTITUTION:A powder measure 6 is advanced to fill a lower mold frame 2 with powder raw material W and then the measure 6 is retracted to scrape off the material W to form a recessed surface thereon by means of a scraper 9 and an upper mold is lowered to effect compression molding of the material W by means of the lower mold frame 2, a lower mold, and the upper mold, following which the frame 2 is lowered by a distance corresponding to the thickness of a molded item or by a distance a little larger than the dimension of the downward protrusion of the strip 10 and then the strip 10 is slid outwardly to remove it from the molded item, thereby forming a groove therein. As a result, a tile with a groove is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grooved tile forming apparatus for forming a tile having a groove to be hooked on a hook on a wall in a dry process by dry compression molding.

[0002]

2. Description of the Related Art Conventionally, as a molding means for forming a dovetail groove b on the back surface of a tile a as shown in FIG.
It is known to integrally extrude the tiles. However, in such means, since the integrally extruded tile body c must be fired and then divided into the tiles a,
Since the wall thickness is usually about 15 mm, its own weight becomes heavy, the load on the building structure increases, and the product has a large dimensional error. Since the foot d is damaged or has a rough surface, the yield is very poor.

[0003]

The present invention makes it possible to easily form a dovetail-shaped groove even in dry compression molding, and since it is dry compression molding, its weight, dimensional accuracy, yield, etc. are reduced. A grooved tile that is good in various aspects and can be easily dealt with by slightly improving the existing tile press machine, and reduces the burden on the operator and the building structure during dry construction. It is intended to provide a molding device.

[0004]

In view of the problems such as the yield in the extrusion molding based on the above-mentioned prior art, the present invention forms a concave flat surface in the powder raw material filled in the lower mold and controls the slide to the lower part. A grooved tile characterized in that a powder raw material is compression-molded by an upper mold provided with a ridge, then the lower mold is lowered, and the ridge is removed from the powder raw material to form a groove. The above-mentioned drawbacks are not solved by providing the molding apparatus of.

As a grooved tile forming device,
The lower mold is fitted in the lower mold so as to be vertically movable, and the upper mold whose vertical movement is controlled is arranged at a position facing the upper mold, and an apron is provided from an end of the lower mold. In a tile press machine that extends and forms a plate and moves on the apron plate to control the powder mass filling the powder material in the lower mold, the upper surface of the lower mold and the apron plate is covered with the powder mass. A U-shaped concave groove that opens upward along the advancing and retreating direction is formed, and a scraper to move in the concave groove is formed to project downward at the lower side of the front frame of the powder mass, and at the bottom of the upper mold. Is provided with a ridge body for slidingly controlling the powder mass in the advancing / retreating direction, and at least one side surface of the ridge body is formed in an inclined shape so as to spread outward.

[0006]

In the present invention, the powder mass is moved forward to fill the powder raw material into the lower mold, and then the powder mass is retracted to scrape the powder raw material in the portion forming the concave plane by the scraper. Then, the upper mold is lowered and the powder raw material is compression-molded by the lower mold, the lower mold and the upper mold.

Next, after the powder raw material is compression-molded, the lower mold is lowered by a dimension corresponding to the thickness of the molded body, or
Alternatively, the grooved tile is formed by lowering the protruding body by a dimension slightly larger than the downward protruding dimension and then sliding the protruding body outward and removing it from the molded body to form a groove. ..

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a tile press machine of a grooved tile T forming apparatus according to the present invention. A vertically movable upper die 4 is provided at a position facing the lower die 3 so as to be vertically movable.

Further, an apron plate 5 is formed so as to extend outward from the end of the lower mold 2, and the apron plate 5 is moved to feed the powder material W into the lower mold 2 for filling. A powder mass 6 is provided, and the powder mass 6 is controlled to move back and forth on the lower mold 3 by an appropriate moving means such as a cylinder.

Further, a U-shaped concave groove 7 is formed on the upper surfaces of the lower mold form 2 and the apron plate 5 so as to open upward in the advancing / retreating direction A of the powder mass 6.

Further, in the lower side portion of the front frame 6a of the powder mass 6,
In order to form the concave flat surface 8 in the powder raw material W filled in the lower mold 2, a scraper 9 having a substantially horizontal lower edge to be moved in the concave groove 7 is projected downward.

Reference numeral 10 denotes a ridge body for forming a groove G on the back surface of the grooved tile T, and an upper portion 10a of the ridge body 10 is provided with an upper die 4
It is slidable by being inserted into a slide groove 11 formed in a substantially T-shape corresponding to the advancing / retreating direction A of the powder mass 6 in FIG. It is connected to a linear driving device 12 composed of a mechanism, and the linear driving device 12 is operated to slide and control the ridge 10.

The shape of the lower portion 10b of the protrusion 10 is such that both side surfaces 13 and 13 of the portion protruding from the lower surface of the upper mold 4 are protruded.
Each of a is inclined outward, and is formed in a trapezoidal shape such that the lower part is wider from the upper part in the vertical section, and the grooved tile T after molding is formed.
The groove G is formed.

The lower portion 10b of the protrusion 10 is not limited to the above shape, and one side surface of the lower portion 10b protruding from the lower surface of the upper mold 4 as shown in FIGS. 9, 10, 13 and 14, for example. 13
May be inclined outward and the other side surface 13a may be formed vertically.

Further, the width dimension W at the lower end portion of the ridge 10
1 is formed to be larger or smaller than the width dimension W2 of the concave flat surface 8 in the powder raw material W filled in the lower mold 2 depending on the shape of the groove G, the fluidity of the powder raw material W, and the like. ..

Next, the molding method in the grooved tile molding apparatus according to the present invention will be described. First, when the powder mass 6 is moved forward and moved onto the lower mold 3, the powder raw material W in the powder mass 6 is removed. The powder material 6 is filled in the lower mold 2 and then the powder mass 6 is retracted to scrape off the powder raw material W in the portion forming the concave flat surface 8 by the scraper 9 of the powder mass 6.

Then, the upper die 4 is lowered and the powder raw material W is compression-molded by the lower die frame 2, the lower die 3 and the upper die 4.

Regarding such a compressed state, the grooved tile T
In order to allow the powder raw material W to easily wrap around the corner portion 14 at the opening edge portion of the groove G in accordance with the shape of the groove G, the fluidity of the powder raw material W, etc. A rubber rubber body 15, 15a having a tapered cross-section may be attached to the relevant surface portion of the upper mold 4 so that the thickness of the outer side thereof is slightly thinner than the thickness thereof. Even if 15a is not used, the surface portion of the upper mold 4 may be formed in an inclined shape.

Next, after the powder raw material W is compression-molded, the lower mold 2 is lowered by a dimension corresponding to the thickness of the compact Wa, or the lower part 10b of the ridge 10 is lowered. It is lowered by a size slightly larger than the projecting size, and then the linear drive device 12 is actuated to slide the projecting body 10 outward to remove the projecting ridge body 10 from the molded body Wa to form the molded body Wa. The groove G is formed.

[0020]

In summary, according to the present invention, the lower mold 3 is fitted and disposed in the lower mold frame 2 so as to be vertically movable relative to each other, and the upper mold is vertically controlled to a position facing the upper mold 3. 4 is arranged,
An apron plate 5 is formed by extending from the end of the lower formwork 2,
In the tile press machine 1 which moves on the apron plate 5 and controls the powder mass 6 for filling the powder raw material W in the lower mold 2, the powder mass 6 is provided on the upper surfaces of the lower mold 2 and the apron plate 5. Is formed with a U-shaped concave groove 7 that opens upward along the advancing / retreating direction A, and a scraper 9 to be moved in the concave groove 7 is formed at the lower side of the front frame 6a of the powder mass 6 so as to project downward. Further, a ridge 10 for slidingly controlling the powder mass 6 in the advancing / retracting direction A is provided on the lower part of the upper die 4, and at least one side surface 13 of the ridge 10 is formed in an inclined shape so as to spread outward. Therefore, the powder mass 6 is advanced to fill the powder raw material W into the lower mold form 2, and then the powder mass 6 is retracted to scrape off the powder raw material W at the portion forming the concave plane 8 by the scraper 9. Then, the upper mold 4 is lowered to compression-mold the powder raw material W, and then the lower mold frame. The lowered, thereafter projection member 10 outward is allowed moldings Wa Yorinuki can be molded grooved tiles T formed between the inclined at least one side of the groove G by removing and slid.

Therefore, the dry compression molding allows the grooved tile T to be manufactured with a wall thickness of 5 mm or less as compared with the conventional extrusion molding, and in various aspects such as its own weight, dimensional accuracy, and yield. It can be done well, and it can be easily dealt with by slightly improving the existing tile press machine. Furthermore, by reducing the weight of the grooved tile T at the time of dry construction, the worker's heavy labor is reduced. Its practical effect is enormous, as it can be eliminated and the burden on the building structure can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state where a powder raw material is filled in a lower mold in a grooved tile molding apparatus according to the present invention.

FIG. 2 is a side view showing a state in which the powder material is filled in the upper and lower molds.

FIG. 3 is a partially omitted cross-sectional view of a state in which the powder raw material is filled in the upper and lower molds and before compression molding.

FIG. 4 is a partially omitted cross-sectional view of the same compression-molded state.

FIG. 5 is a partially omitted cross-sectional view of a state where the lower mold frame is lowered after compression molding is performed.

FIG. 6 is a partially omitted enlarged cross-sectional view showing another embodiment in the state of being compression molded in FIG.

FIG. 7 is a partially omitted cross-sectional view of a state in which the ridge body is slid and removed from the powder raw material after the vertical mold is lowered.

FIG. 8 is a partially omitted cross-sectional view of a state in which the upper mold has been lifted after compression molding.

FIG. 9 is a schematic plan view of the above tile press machine.

FIG. 10 is a partially omitted cross-sectional view of a compression-molded state of a ridge according to another embodiment.

FIG. 11 is a partially omitted cross-sectional view showing a state where the lower mold frame is lowered after compression molding is performed.

FIG. 12 is a perspective view of a grooved tile.

FIG. 13 is a sectional view taken along line AA of the above.

FIG. 14 is a perspective view of another embodiment of a grooved tile.

FIG. 15 is a sectional view taken along line BB of the above.

FIG. 16 is a perspective view of a conventional extrusion-molded tile body.

[Explanation of symbols]

 1 Tile press machine 2 Lower mold 3 Lower mold 4 Upper mold 5 Apron plate 6 Powder mass 6a Front frame 7 Recessed groove 9 Scraper 10 Ridge 10b Lower part

Claims (1)

[Claims] 1. A lower mold is provided with a lower mold fitted so as to be vertically movable relative to each other, and an upper mold whose vertical movement is controlled is arranged at an upper facing position of the lower mold. In the tile press machine for extending and forming an apron plate from the end of the lower mold and moving the upper apron plate to control the powder mass for filling the powder raw material into the lower mold, the upper surface of the lower mold and the apron plate The U-shaped concave groove that opens upward along the advancing and retreating direction of the powder mass is formed, and the scraper to be moved in the concave groove is formed at the lower side portion of the front frame of the powder mass so as to project downward.
In addition, a groove is provided on the lower part of the upper die, which is provided with a ridge body for sliding control in the advancing and retreating direction of the powder mass, and at least one side surface of the ridge body is formed in an inclined shape so as to spread outward. Tile molding equipment.