JPH11254413A - Manufacture of decorative tile formed of cement raw material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the possibilities that a finished product might fall from a body by pouring a cement raw material into a bottom force with an uneven surface formed internally, then pressing the cement raw material with a top force with a decorative mold face formed internally from above and parting the pressed molding as a finished product. SOLUTION: Ribs 10b with a taper formed or both sides are formed on the intraforce bottom face 10a of a bottom force 10 then a cement raw material 11 is poured into the bottom force 10 and is pressed by a top force 12 made of a steel or a resin with a decorative mold face 12a formed on the inner face of the top force 12 from above. Next, the top force 12 is removed and a molding is parted from the bottom force 10 after drying to obtain the finished product. Further, the back face side of the finished product is applied to a body through a mortar bonding agent. Consequently, the finished product is positioned in such a way that its back face is directed downward inside the bottom force 10, and thus the possibilities that impurities are cured on the back face or the back face becomes oxidized through being exposed to an atmosphere or the back face shows a deteriorated strength due to the evaporation of the water content are eliminated. In addition, an uneven pattern is formed on the back face of the finished product to enhance its adhesive force so that the finished product does product does not fall from the body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative tile made of a cement material and used for an exterior of an exterior product, and more particularly to a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, some methods of manufacturing decorative tiles include:
There was a manufacturing method in which extrusion was performed using a clay material, and a manufacturing method in which pressing was performed using a magnetic clay material.

[0003] However, in each case, it has to be baked after processing, and there has been a problem that the equipment is expensive and cannot be profitable unless it is manufactured in large quantities.

[0004] Therefore, when only a small amount is to be produced, baking is not required, and the equipment is inexpensive.

In this manufacturing method, for example, as shown in FIG. 6, a lower die 1 having a decorative die surface on the inner bottom surface is used. Then, the cement material 2 is poured into the lower mold 1,
In the state shown in FIG. 7, the product was left for a while, dried and then demolded to obtain a product 3 having a decoration formed on the surface 3 a by the decorative mold surface of the lower mold 1 as shown in FIG. 8.

[0009] Thereafter, as shown in FIG.
Was pasted on.

[0007]

However, in such a conventional casting process, the vibration applied during the forming process causes the back surface 3b to impure impurities such as pigments and admixtures (added to increase the product strength) and sand. However, there is a problem that the strength of the back surface 3b decreases because the surface of the rear surface 3b hardens as it is, the back surface 3b side is oxidized by contact with air, or the moisture of the back surface 3b side evaporates.

In addition, the back surface 3b side of the product 3 is a flat surface without irregularities, and thus has a problem that adhesion is weak. For this reason, after a certain period of time, the product 3 becomes the frame 5
There is a problem that there is a risk of falling from the.

It is an object of the present invention to provide a method of manufacturing a decorative tile made of a cement-based material, in which a product does not fall from a frame.

[0010]

SUMMARY OF THE INVENTION Therefore, the invention according to claim 1 is a method for manufacturing a decorative tile made of a cement-based material, for example, as described in the embodiment described with reference to the following drawings. For example, a cement-based material 11 is poured into a lower mold 10 having irregularities provided with ribs 10b and the like, pressed from above with an upper mold 12 having a decorative mold surface 12a in the mold, and then removed from the mold to form a decorative mold on the surface. A decorative tile such as a product 13 having a decoration 13a formed on the surface 12a is obtained.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

In the method for manufacturing a decorative tile according to the first aspect of the present invention, a lower mold 10 as shown in FIG. 1 is used.
On the inner bottom surface 10a of the lower die 10, for example, two ribs 10b having a taper a on both sides are formed.

Then, a cement material 11 is poured into the lower mold 10 and pressed from above by an upper mold 12 as shown in FIG. The upper mold 12 is made of, for example, steel or resin. A decorative mold surface 12a is formed on the inner surface of the mold.

Thereafter, as shown in FIG. 3, the upper mold 12 is removed, and after drying for a while, the mold is removed as shown in FIG.
Get 3. A decoration 13a is provided on the front surface of the product 13, and two grooves 13b having a taper b are formed on the back surface.

The product 13 is attached to the frame 15 via a mortar bond 14 having a uniform thickness of, for example, 3 to 4 mm on the back side, as in the conventional case. At this time, the mortar bond 14 enters the groove 13b, and the product 13 is attached to the frame 15 with a strong adhesive force.

[0016]

Thus, according to the first aspect of the present invention, during the casting process, the back surface of the product is set to the lower side in the lower mold, so that impurities are hardened on the back surface or the back surface is formed. There is no danger that the strength of the back surface will be reduced due to oxidation or the evaporation of moisture on the back surface due to contact with the outside air.Moreover, since irregularities are formed on the back surface of the product, the product will drop from the frame with stronger adhesion. Can be eliminated.

Further, since a cement-based material is used, there is no need to bake after processing, and a small amount can be produced at low cost.
Products can also be recycled.

[Brief description of the drawings]

FIG. 1 is a sectional view of a lower mold used in the method for manufacturing a decorative tile according to the first aspect of the present invention.

[Fig.2] After pouring a cement material into the lower mold,
FIG. 4 is an explanatory sectional view showing a state where the upper mold is pushing from above.

FIG. 3 is an explanatory cross-sectional view showing a state in which an upper mold has been removed.

FIG. 4 is a cross-sectional view of a product after demolding.

FIG. 5 is an explanatory longitudinal sectional view for explaining a use state of the product.

FIG. 6 is an explanatory perspective view illustrating a state in which a cement-based material is poured into a lower mold in a conventional method for manufacturing a decorative tile.

FIG. 7 is an explanatory cross-sectional view illustrating a drying step after pouring a cement-based material.

FIG. 8 is a cross-sectional view of a product removed from the mold after finishing the drying step.

FIG. 9 is an explanatory longitudinal sectional view for explaining a use state of a product manufactured by the conventional manufacturing method.

[Description of Signs] 10 Lower mold 10a Mold inner bottom surface 10b Rib 11 Cement-based material 12 Upper mold 12a Decorative mold surface 13 Product (decorative tile) 13a Decoration

Claims (1)

[Claims] 1. A cement-based material is poured into a lower mold having irregularities in a mold, pressed from above with an upper mold having a decorative mold surface in the mold, and then removed from the mold to form the surface with the decorative mold surface. A method for producing a decorative tile made of a cement-based material, wherein a decorative tile having a decoration is obtained.