JPH03293463A - Plate for building and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide a plate for building which is light and has heat insulating and sound insulating properties by a method wherein a recessed pattern is formed in the surface of the plate for building formed of an inorganic material and having a plurality of hollow holes formed at the inside, and the internal hollow holes are embedded in a recessed part pattern part to form separating hollow holes. CONSTITUTION:A kneaded substance obtained by mixing cement, slag, quartz sand, a fiber material, and other mixture material, serving as an inorganic material and a proper amount of water is charged in an extruder 5. A dice 9 to which a core 8 is attached is arranged to the tip of the extruder 5, and the kneaded substance is extruded to form a continuous base body 1 having a plurality of hollow holes 4 paralleling an extrusion direction. The base body 1 is cut to proper lengths by a cutter 6, and a produced base plate 1a in an uncured state is pressed by a press machine 2 having a protrusion part pattern 3. Meanwhile, the hollow holes 4 of a base plate 1a are pressed by means of the protrusion part pattern 3 of the press machine 2 to embed the hollow holes to form some separating hollow holes 4. This method enables formation of the separating hollow holes 4 togetherwith a recessed part pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an inorganic board for construction whose main component is an inorganic material and a method for manufacturing the same.

[Prior art and its issues]

Conventionally, a method for producing a wall board having a lattice-like uneven pattern or a brickwork-like uneven pattern uses a hydraulic inorganic material as the main raw material, and adds a lattice-like unevenness to the surface of an uncured molded body obtained by a papermaking method or an extrusion method. Methods of pressing patterned or brickwork pressed plates are known. The method of forming a concavo-convex pattern by pressing the press plate produces a concavo-convex pattern, such as a grid-like concavo-convex pattern.
This is a preferred method when forming a pattern having grooves in both the length and width directions of the molded plate.

According to this method, since the inorganic material of the molded body has a certain degree of fluidity, during pressing, the inorganic material 1 in the portion where the concave grooves are formed by the convex pattern 3 of the press plate 2 is
, As shown in Figure 8, the flow escapes to other parts, but it is only a local flow and it is difficult to form deep concave grooves, and if it is attempted to form deep concave grooves, a very high press pressure is required. . Furthermore, during pressing, internal pressure that opposes this pressing pressure is generated in the inorganic material, and when the press plate 2 is opened, a restoring force is generated that tries to return to its original state due to this internal pressure. Corners cannot be clearly formed, and in order to clearly form corners, it is necessary to increase the pressing time, which is a factor that reduces design quality and productivity.

[Means for solving problems]

In view of the current situation, the present inventor conducted repeated research to solve the problems of the method of forming a concave pattern on an inorganic plate by pressing with a press plate, and as a result, completed the present invention. .

That is, the present invention provides a construction board made of an inorganic material and having a plurality of hollow holes 4 inside, in which a concave pattern 7 is formed on the surface, and the internal hollow holes 4 are buried in the concave pattern 7 and isolated. Hollow hole 4
After obtaining a substrate l having a plurality of continuous hollow holes 4 therein in a direction parallel to the extrusion direction by extrusion molding the architectural board referred to as a and an inorganic material.

The surface of the uncured substrate l is pressed by a press plate 2 having a convex pattern 3 so that the internal hollow hole 4 is partially buried and becomes an isolated hollow hole 4a, and seven concave patterns are formed on the surface. The gist lies in the manufacturing method of architectural boards.

By devising the above structure, the present invention aims to provide a construction board that can form a sharp concave pattern 7 on the surface, is lightweight, has excellent heat insulation and sound insulation properties, and is easy to nail. It is.

[Explanation of Examples]

A detailed explanation will be given below according to the drawings.

FIG. 2 shows the steps of the manufacturing method of the present invention.

Cement, slag, crushed sand, fiber materials, and other mixed materials and an appropriate amount of water are used as S-organic materials, and these mixed materials are charged into the extruder 5. The extruder 5 has a core 8 at its tip.
A die 9 is provided, and the mixed material is extruded from the extruder, thereby obtaining a continuous substrate l having a plurality of hollow holes 4 in a direction parallel to the extrusion direction.

This substrate 1 is cut into a length using a cutting blade and a linear object or cutting #26 using a water jet, etc., and the resulting uncured substrate 1a is pressed with a press plate 2 having a convex pattern 3. It is something to do.

The hollow holes 4 of the substrate 1a are pressed by the convex pattern 3 of the press plate 2, so that they are buried and separated into several parts, thereby forming isolated hollow holes 4a. The inorganic material in the part pressed by the convex pattern 3 to form the concave grooves 7 is absorbed by filling the hollow holes 4, so even when forming deep concave grooves 7, high pressure is not required compared to the conventional method. Furthermore, the internal pressure generated in the inorganic material during pressing is
Since it is absorbed by burying the hollow hole 4, a corner can be clearly formed even if the press plate 2 is opened in a short time.

FIG. 3 is an example of a construction board according to the present invention, and shows a construction board having a grid-like recessed "anatomy pattern" 7 on its surface.

FIG. 4 shows a cross-sectional view of the construction board shown in FIG. 3 along line A-A. In the A-A section, hollow holes 4 in the direction parallel to the extrusion direction remain without being buried by pressing.

FIG. 5 shows a sectional view taken along line BB of the construction board shown in FIG. 3. In the B-B section, when the hollow hole 4 formed during extrusion is pressed by the convex pattern of the press plate to form a concave groove, an isolated hollow hole 4a is formed with the hollow hole buried and isolated into several parts. remains as.

〔Effect of the invention〕

(I) Deep concave grooves 7 are placed on the substrate l with the convex pattern 3 of the press plate 2.
When forming the concave groove 7, the corners of the concave groove 7 can be clearly formed.

■ Since the construction board of the present invention has several isolated hollow holes 4a, it is a construction board that is light in weight, has excellent workability, and has excellent heat insulation and sound insulation properties. be.

(■ Also, when constructing a construction board that has concave grooves 7 on its surface, it is generally fixed by nailing into the concave grooves 7, but if the hollow holes 4 remain on the lower surface of the concave grooves 7 in the surface pattern, the construction Since this may cause cracks in the plate, it is necessary to adjust the position where the hollow holes 4 are formed during extrusion so that they do not coincide with the concave grooves 7 on the surface. However, according to the manufacturing method of the present invention, the hollow holes 4 Even if the position of 4 is formed randomly, the concave groove 7
The hollow holes 4 in the portions where the holes are formed disappear during the pressing 3, and there is no need to adjust the position where the hollow holes are formed.

[Brief explanation of drawings]

Figure 1 shows the process up to the formation of hollow holes 4 in the substrate F in the method of the present invention. Figure 2 shows the state immediately before the press plate 2 presses the substrate 1a in the method of the present invention. FIG. 3 shows a perspective view of the integrated fiber plate of the present invention. Figure 4: sectional view taken along the line AA in Figure 3; Figure 5: sectional view taken along the line BB in Figure 3; Figure 6 shows the arrangement of the hollow holes 4 in the construction board of the present invention. FIG. 7: Shows a state immediately before a substrate without hollow holes 4 is pressed by a press plate 2 in the prior art. FIG. 8: Shows the state immediately after the press plate 2 presses the substrate in the prior art. Two substrates, inorganic material, a: Substrate, nibbles disk, : Convex pattern. : Hollow hole, a: Isolated hollow hole, : Extruder. : Cutting machine, : Concave pattern, Concave groove, : Core, : Die. No.? Fig.1゜Fig.5 Fig.Flute Fig.Fig.Fig.

Claims (1)

[Claims] 1) In a construction board made of an inorganic material and having a plurality of hollow holes 4 inside, a concave pattern 7 is formed on the surface thereof, and the internal hollow holes 4 are buried in the concave pattern. A construction board characterized by having isolated hollow holes 4a. 2) After obtaining a substrate 1 having a plurality of continuous hollow holes 4 in the extrusion direction by extrusion molding an inorganic material, the surface of the substrate 1 in an uncured state is molded so that the inner hollow holes 4 are aligned. A method for manufacturing a construction board, which comprises pressing the board with a press plate 2 having a convex pattern 2 so as to partially embed the material into isolated hollow holes 4a, thereby forming a concave pattern 7 on the surface.