JPH06190814A - Method and device for forming stepped tile body - Google Patents

Abstract

PURPOSE:To form a stepped tile body having a projecting stripe at the upper edge part of a plate-like base by front pressing by a method wherein the flat upper mold of an upper mold, which consists of the flat upper mold for forming the plate-like base and an upper mold for forming the projecting stripe at the at the upper edge part of the base, is brought into contact with the ocher loaded between a lower mold and a form and, after ocher is re-loaded under the state that the form is raised, forming is performed under pressure. CONSTITUTION:The forming device 11 concerned is equipped with an upper mold 16 formed by combining an upper mold 17 for flattening and an upper mold 18 for projecting stripe, both of which relatively and vertically move each other by the predetermined stroke A, a liftable form 12 and a lower mold 13. Ocher is loaded in a space made by the form 12 and the lower mold 13 with a flour measure 5 and brought into contact with the flat upper mold 17 by lowering the mold 17 onto the formed ocher layer K. Next, by further loading ocher in a space G, which is produced by raising the form 13 ocher layer L is formed. Next, after the upper mold 18 for projecting stripe is lowered down to the bottom dead point of the stroke A, the mold 18 is lowered together with the flat upper mold 17 for forming under pressure, resulting in allowing to obtain stepped tile body having the same degree of shading as that of speckle pattern of plain tile formed by front pressing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for molding a stepped tile base material having a ridge on the upper surface edge of a plate-shaped base and a molding apparatus used for the molding method.

[0002]

2. Description of the Related Art Conventionally, molding of a stepped tile base material such as an inner baseboard tile base material or an inner baseboard-filled tile base material has been carried out as follows using a molding apparatus 1 shown in FIG. In the first step, as shown in FIG. 1A, the frame mold 2 and the lower mold 3 of the molding apparatus 1 form a filling space S having an inner volume corresponding to the amount of the kneaded clay filling the tile base material, and the filling space S This is to fill the filling space S with the kneaded clay P by passing the dust container 5 above S. The second step is to lower the upper mold 4 and press-form the kneaded clay layer Q, as shown in FIG. In the final third step, the upper die 4 is raised and the frame die 2 is moved as shown in FIG.
Is to remove the stepped tile base T from the mold. In this molding method, the back surface Tb of the tile base T is placed on the upper die 4
It is a back push that is pressed with.

[0003]

However, when a stepped tile base material having a speckled pattern is formed by backing, the density of the speckle pattern on the front surface Ta and the back surface Tb, which are the construction surfaces of the tile base material T, is different, or the surface Ta is different. The spot distribution of may become uneven. The reason for this is due to the difference in the fluidity of the two components that are generated when the kneaded material P in which the coarse-grained component forming the spot and the fine-grained component forming the part other than the spot are mixed is filled in the filling space S. It is a thing. On the contrary,
The spot distribution on the back surface Tb of the tile base T is uniform. The reason for this is that when the kneaded material is filled, the excess kneaded material P above the filling space S is scraped off by the tokaki portion 5a of the dust container 5 and the upper surface Qa of the kneaded material layer Q is leveled.

By the way, the flat tile base material is formed by surface pressing in which the surface of the base material is pressed by an upper die from the viewpoint of manufacturing efficiency and the like.
Therefore, the degree of shading of the speckled pattern differs between the face-pressed flat tile and the backed stepped tile, and when this is applied, the speckled pattern varies, resulting in a uniform speckled pattern on the tile construction surface. There was a serious drawback of not being in harmony.

In order to solve the above problems, the present invention provides a method for forming a stepped tile base material which can form a stepped tile base material having a ridge formed on the upper surface edge of a plate-like base portion by pressing. It is intended to provide a molding device.

[0006]

Means adopted by the method for forming a stepped tile base material according to the present invention (hereinafter referred to as "the method of the present invention") is that a ridge is provided on the upper edge of the plate-like base. In the method of forming a stepped tile base material, a frame die and a lower die form a base filling space having an inner volume corresponding to the amount of kneaded clay filling the plate-like base portion of the tile base material, and the powder shavings are provided above the base filling space. To fill the base-filling space with kneaded clay, bring the flat upper mold into contact with the upper surface of the base-filled kneaded clay layer, and raise the frame mold relative to the lower mold so that the flat mold and flat mold Form a ridge filling space having an internal volume corresponding to the amount of the kneaded clay filling the ridge of the tile base with a mold, and fill the kneaded clay into the ridge filling space,
It is to manufacture a stepped tile base by relatively pressurizing the combination upper mold and the lower mold, which are the flat upper mold and the ridge upper mold, against each other.

The means adopted by the stepped tile base forming apparatus according to the present invention (hereinafter referred to as the "invention apparatus") is composed of a combination upper die, lower die, and frame die. A forming apparatus for producing a stepped tile base provided with a ridge, wherein the combination upper mold comprises a combination of a flat upper mold for plate-shaped base molding and a ridge upper mold for ridge molding. ,
The flat upper die and the ridge upper die have a height difference between the pressure surface of the flat upper die and the pressure surface of the ridge upper die that is equal to a predetermined protrusion amount of the ridge. It is arranged such that it can be moved up and down relatively only by a stroke having a value equal to or higher than a predetermined height of the kneaded material filling amount, and that it moves up and down in conjunction with other strokes.

[0008]

In the method of the present invention, since the upper surface of the kneaded clay layer filled in the base filling space is scraped off by the duster part of the dust box, the spot distribution on the construction surface of the plate-shaped base is uniform. Becomes The kneaded material filled in the ridge filling space is deposited without segregation in this space because the space is narrow and has almost no planar spread. Therefore, the spot distribution on the construction surface of the ridge is in a uniform state, which is about the same as the spot distribution on the construction surface of the plate-shaped base. Since the inner volume of each of the base filling space and the ridge filling space is an inner volume corresponding to the amount of the kneaded clay filling each of the plate-like base and ridges of the tile base, the tile base is uniformly pressed over the whole. Molded.

In the apparatus of the present invention, the frame-shaped mold and the lower mold can form a base filling space having an inner volume corresponding to the amount of the kneaded clay filling the plate-shaped base of the tile base material, and the base filling space. The base filling space can be filled with the kneaded clay by passing the dust pan above the base. Lower the flat upper mold until it comes in contact with the upper surface of the base-filled kneaded clay layer, place the ridge upper mold on the upper part of the stroke, and further raise the frame mold to make the tile base between the frame mold and the flat upper mold. A ridge filling space having an inner volume corresponding to the amount of the kneaded clay filling the ridge is formed. The kneaded material is filled in the ridge filling space, and the flat upper die and the ridge upper die are lowered in a state where the ridge upper die is located at the lower part of the stroke, whereby pressure molding can be performed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings. FIG. 1 is a partial sectional view showing an embodiment of the apparatus of the present invention, and FIG. 2 is a partial sectional view showing an embodiment of the method of the present invention using the apparatus of the present embodiment.

As shown in FIG. 1, the device 11 of this embodiment is
It is provided with a fixed lower die 13, a frame die 12 that moves up and down while the lower die 13 is externally fitted, and a combination upper die 16 that moves up and down above the lower die 13. The lower die 13 is adapted to press-form the back surface Ub of the stepped tile base material U (see FIG. 2E) at its pressing surface 13a.

The combination upper mold 16 comprises a combination of a flat upper mold 17 and a ridge upper mold 18. The flat upper die 17 presses the flat surface Ua-1 and the ridge surface Ua-2 of the stepped tile base U (see FIG. 2E) with the pressing surfaces 17a-1 and 17a-2. It is designed to be molded. The ridge upper die 18 is configured such that the ridge portion side surface Uc of the stepped tile base U is pressure-molded by the pressure surface 18a.

These flat upper mold 17 and protruding upper mold 18
Are combined so as to move up and down relatively by a predetermined stroke A. Flat upper mold 17 and ridge upper mold 1
The combination structure with 8 is the stepped shaft portion 1 of the flat upper die 17.
7b, the flange portion 18b of the ridge upper die 18 is externally fitted so as to be vertically slidable. The predetermined stroke A means the pressing surface 17a-1 of the flat upper die 17 and the ridge upper die 1
8 and the pressure difference between the pressure surface 18a and
A value D that is equal to or greater than a predetermined height C (see FIG. 2C) of the kneaded clay filling amount and a ridge Ud of the stepped tile base material U (see FIG. 2E)
The amount corresponding to the difference from the value B equal to the protrusion amount (that is, A = D−B).

The frame die 12 has a pressing surface 13a of a lower die 13.
From the lower standby height position, the frame mold 12 and the lower mold 13 have an inner volume corresponding to the amount of the kneaded material filling the plate-shaped base Ue of the tile base U (see FIG. 8E). (See (A)), the height position for forming the frame die 12 and the flat upper die 17
And the ridge filling space G having an internal volume corresponding to the amount of the kneaded clay filling the ridges Ud of the tile base U (see (E) in the same figure).
It is configured so that it can be vertically moved up and down to a height position that forms (see).

Next, an embodiment of the method of the present invention using the device 11 will be described. As shown in FIG. 2 (A), in the first step, the frame body 12 that has been waiting to descend is raised, and the frame die 12 and the lower die 13 correspond to the amount of kneaded clay filling the plate-shaped base portion Ue of the tile base U. That is, the base filling space F having the above inner volume is formed, and the powder mullet 5 is passed above the base filling space F to fill the base filling space F with the kneaded clay P. The upper surface Ka of the base-filled kneaded clay layer K formed in the base-filled space F as shown in FIG.
Is formed by being scraped off by the tokaki part 5a of the dust pan 5, so that the distribution of spots becomes uniform.

In the second step, the flattening upper mold 17 which has been standing by ascent is lowered, and the pressing surface 17a-1 of the flattening upper mold 17 is transferred to the base-filling kneaded layer K as shown in FIG. Upper surface of Ka
And the frame die 12 is lifted so that the frame die 12 and the pressing surface 17a-2 of the flat upper die 17 correspond to the amount of the kneaded clay filling the ridges Ud of the tile base U (see (E) in the figure). The ridge filling space G having the specified inner volume is formed, and the clay P is placed in the ridge filling space G.
Is to fill. The lowering of the flat upper die 17 is performed in a state where the flange portion 18b of the projecting upper die 18 is in contact with the flange portion 17c of the stepped shaft portion 17b of the flat upper die 17, that is, the projecting upper die 18 has a stroke A. It is performed in the state where it is located in the upper rank of. The clay P filled in the ridge filling space G is the space G
Is a narrow one with almost no planar spread, and is deposited in this space G without segregation to form a ridge-filled kneaded clay layer L. Therefore, the spot distribution and the spot concentration on the side surface La of the ridge-filled kneaded clay layer L are the upper surface K of the base-filled kneaded clay layer K.
It is almost the same as the spot distribution and the spot density in a.

In the third step, as shown in FIG. 3D, the flat upper mold 17 and the ridge upper mold 18 are lowered to add the base-filling kneaded clay layer K and the ridge-filled kneaded clay layer L. Pressure forming. In the pressure molding, after lowering the ridge upper die 18 to a lower position of the stroke A, the ridge upper die 18 and the flat upper die 1
7 will descend and will be performed. Since the inner volume of each of the base filling space F and the ridge filling space G is an inner volume corresponding to the required kneaded material filling amount of each of the plate-shaped base Ue and the ridge Ud of the tile base U, pressure molding is performed. , Homogeneously throughout.

In the fourth step, as shown in FIG. 3D, the ridge upper mold 18 and the flat upper mold 17 are raised to the standby position and the frame mold 12 is lowered to remove the stepped tile base material U. It is to mold.

The method of the present invention is not limited to the above-mentioned embodiment using the apparatus 11, and although not shown in the drawing, the lower mold can also be lifted and the flat upper mold and the ridge upper mold are independent. By moving the lower mold, the frame mold, the flat upper mold, and the ridge upper mold relatively using a device that can be raised and lowered,
It is also possible to perform substantially the same kneaded material filling and pressure molding as the first to fourth steps.

[0020]

As described above in detail, the present invention has the following excellent effects. The method of the present invention and the device of the present invention can form the surface of the stepped tile base material by surface pressing and can make the spot distribution and the spot concentration uniform over the entire surface, and further, the tile base material is uniform over the entire surface. Can be pressure molded. As a result, the method of the present invention and the device of the present invention make it possible to obtain a stepped tile having the same degree of shade as the spot pattern of a flat tile, and provide a tile construction surface in which the spot patterns are uniformly harmonized. .

In the method of the present invention and the apparatus of the present invention, a lower mold for flat tile molding can be used as the lower mold, and the lower mold can be made common.

In the device of the present invention, when the upper mold for ridges is moved up and down, the upper mold for flat is also lifted at the same time. Therefore, it is possible to simplify the lifting drive mechanism for the upper mold for combination, which reduces the manufacturing cost of the device and maintenance and inspection. The number of steps can be reduced.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing an embodiment of the device of the present invention.

FIG. 2 is a partial cross-sectional view showing an embodiment of the method of the present invention,
(A) to (E) show each step.

FIG. 3 is a partial cross-sectional view showing a conventional method for forming a stepped tile base material, in which (A) to (C) show respective steps.

[Explanation of symbols]

 5 ... dust box 12 ... frame type 13 ... lower mold 16 ... combination upper mold 17 ... flat upper mold 18 ... ridge upper mold F ... base filling space G ... ridge filling space K ... base filling clay layer L ... Ridge-filled kneaded clay layer P ... Kneaded clay U ... Tile base

Claims (2)

[Claims] 1. A method for forming a stepped tile base material having a ridge formed on a top edge of a plate-shaped base, wherein a frame mold and a lower mold correspond to a kneaded material filling amount of the plate-shaped base of the tile base. A base filling space having an inner volume is formed, a dust box is passed over the base filling space to fill the base filling space with kneaded material, and the flat upper mold is brought into contact with the upper surface of the base filling kneaded material layer and a frame is formed. The mold is raised relative to the lower mold to form a ridge filling space having an inner volume corresponding to the amount of kneaded clay filling the ridge of the tile base by the frame die and the flat upper die. Fill the filling space with kneaded clay,
A method of forming a stepped tile base material, characterized in that a stepped tile base material is manufactured by relatively opposingly pressing a combination upper die and a lower die, which are the flat upper die and the ridge upper die. 2. A molding apparatus comprising a combination upper mold, a lower mold, and a frame mold, for manufacturing a stepped tile base in which a ridge is provided on an upper edge of a plate-shaped base, wherein the combination upper mold is a plate. Comprising a flat upper die for forming a flat base and a ridge upper die for forming a ridge, wherein the flat upper die and the ridge upper die include a pressing surface of the flat upper die and a ridge. While the height difference from the pressurizing surface of the upper mold is relatively movable up and down by a stroke that is a value equal to or larger than a predetermined protrusion amount of the protrusion from a value equal to a predetermined protrusion amount of the protrusion, A molding device for a stepped tile base, which is arranged so as to move up and down in conjunction with each other except for the stroke.