JPH0444806A - How to cut inorganic building materials - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cutting method for manufacturing inorganic building materials such as flat roof tiles.

[Conventional technology]

When manufacturing building materials such as flat tiles from inorganic raw materials such as cement and clay, conventionally, as shown in Figure 4, a roll cutter B with a cutter blade A protruding from the roll surface is used to fit the shape of the tile to be cut. As shown in Figure 3A, the inorganic raw material E is cut into strips conveyed by the belt conveyor C, and after natural curing, the product material E is cut into a solid line shape at the opening in Figure 3 using a punch dicent and flat plated. It is called Kawara F.

In addition, in the opening of Fig. 3, the hatched part is the W of the tile.
This is the working part that is exposed to the outside when the roof is thatched.

[Problems with conventional technology]

However, while the above conventional method has the advantage of being able to manufacture the flat tiles F continuously, on the other hand, the draining portions G exposed to the outside of the tiles F have the same shape, so the roof surface appearance does not have a geometric design. The problem was that the roof surface became monotonous.

[Problem to be solved by the invention]

In view of the above-mentioned problems, the present invention has been made with the object of providing a cutting method that can manufacture building materials having continuously different shapes.

[Technology that led to solving the problem]

That is, the method for cutting inorganic building materials of the present invention uses a circular cutter in which the continuous state of the blades is irregularly changed in the circumferential direction to cut the central part of a strip-shaped raw material of mineral building materials that is continuously conveyed on a belt conveyor. The method is characterized in that the strip-shaped raw material is then cut in one direction at predetermined regular intervals in the length direction.

〔Example〕

Next, the present invention will be explained in detail.

FIG. 1 is a perspective view of a circular cutter used in an embodiment of the present invention, and FIG.

The method for cutting inorganic building materials according to the present invention uses a circular cutter 1 whose continuous state of blades 1a is irregularly changed in the circumferential direction as shown in FIG. The center part 2a of the strip-shaped raw material 2 is cut, and then the strip-shaped raw material 2 is cut at a predetermined constant interval l in the length direction.
The process consists of cutting each time with a cutter 3 in the width direction (arrow Y).

After natural curing of the tile material 20 obtained by the above-mentioned cutting, a punch die is used to cut off the solid line portion as shown in FIG. 2C to produce a tile 21 shown in chain lines.

[Effect]

According to the method described in 5, when the strip-shaped raw material 2 is cut into 17 rows by the circular cutter 1, the cutting line continuously changes into an irregular shape as shown in FIG. Since the cut shapes at the same location on both sides 2b and 2C are different, the shape of the draining portion 22 of the tile element tJ'20 obtained by cutting with the cutter 3 also changes irregularly as shown in Fig. 2C. The flat tiles 21 have a long shape, and the shape of the draining portion 22 changes with each tile, making it possible to continuously produce flat tiles 21 of different shapes.

Therefore, the roof surface covered using the above-mentioned flat tiles 21 has irregular draining lines, giving the roof surface a variety of expressions.

〔effect〕

Since this plan is constructed as described above, it is possible to continuously produce building materials with different cutting shapes using a cutter of 】 type. For example, when the building material is a roof tile, this roof tile can be used. This has the effect of adding a variety of expressions to the roof surface.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a circular cutter used in an embodiment of the present invention, Fig. 2 A, A, and C are explanatory diagrams of the operation of the embodiment, Fig. 3 A and A are explanatory diagrams of the conventional method, and Fig. 4 is a perspective view of a roll cutter used in the conventional method. 1E T21fl) 〉 Hon-No-1-→ 72rfJ (c) Q? Z r3 hard (inzai3IiJ 74a!1

Claims (1)

[Claims] (1) A circular cutter in which the continuous state of the blade changes irregularly in the circumferential direction cuts the center of a strip of inorganic building materials that is continuously conveyed on a belt conveyor, and then lengthens the strip of material. A method for cutting inorganic building materials, characterized by cutting in the width direction at predetermined intervals in the width direction.