JP2571974B2 - Architectural plate and method of manufacturing the same - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an inorganic building board mainly composed of an inorganic material and a method for producing the same.

[Conventional technology and its problems]

Conventionally, as a method of manufacturing a building board having a lattice-shaped uneven pattern or a brick-stacked uneven pattern, a water-soluble inorganic material is used as a main raw material, and a grid-shaped unevenness is formed on the surface of an uncultivated formed body obtained by a papermaking method and an extrusion method. A method of pressing a pattern or a brick-shaped press plate is known. The method of forming a concavo-convex pattern by pressing the press plate is a preferable method for forming a pattern having grooves in both the longitudinal direction and the width direction, such as a lattice-shaped concavo-convex pattern.

According to this method, since the inorganic material of the molded body has a certain degree of fluidity, at the time of pressing, the portion of the inorganic material 1 where a concave groove is formed by the convex pattern 3 of the press platen 2
As shown in Fig. 7 and 8, it escapes to other parts, but it is only a local flow and it is difficult to form a deep concave groove, and if a deep concave groove is to be formed, a very high press pressure is required. is there. Further, during the pressing, an internal pressure opposing the press pressure is generated in the inorganic material, and when the press platen 2 is opened, a restoring force is generated to return to the original pressure due to the internal pressure. The corners could not be formed clearly, and in order to form the corners clearly, it was necessary to lengthen the pressing time, which was a factor of lowering the design and the productivity.

[Means for solving the problem]

In view of this situation, the present inventor has conducted various studies to solve the problems of a method of forming a concave pattern on an inorganic plate by a method using concave pressure of a press plate, and as a result, has completed the present invention. Was.

That is, the present invention provides: "In a building board made of an inorganic material and having a plurality of hollow holes 4 extending in the longitudinal direction of the substrate therein, at least a concave pattern 7 orthogonal to the longitudinal direction of the substrate is formed on the surface thereof; An architectural plate in which the internal hollow holes 4 are separated by the concave pattern 7 to form isolated hollow holes 4a. "And" a plurality of continuous hollow holes extending in the longitudinal direction of the substrate inside by extrusion molding of an inorganic material. " Substrate 1a having 4
After obtaining the substrate 1a, the surface of the substrate 1a in an uncured state is pressed with at least a convex pattern 3 orthogonal to the longitudinal direction of the substrate so that the internal hollow hole 4 is partially cut off to form an isolated hollow hole 4a. 2. A method for manufacturing a building plate, wherein the building plate is squeezed to form a concave pattern 7 on the surface. The gist of this is.

The present invention is based on the idea of the above configuration,
An object of the present invention is to obtain a building plate that can form a concave pattern 7 on the surface sharply, is lightweight, has excellent heat insulating properties and soundproofing properties, and is easily nailed.

[Explanation of Example]

 This will be described in detail below with reference to the drawings.

FIG. 2 shows the steps of the manufacturing method of the present invention. As an inorganic material, cement, slag, silica sand, a fiber material, other mixed materials, and an appropriate amount of water are used, and a kneaded product of these is charged into the extruder 5. The extruder 5 is provided with a die 9 on which a core 8 is attached at its tip, and the kneaded material is extruded from the extruder to form a continuous substrate 1 having a plurality of hollow holes 4 in a direction parallel to the extrusion direction. can get. The substrate 1 is cut to an appropriate length by a cutter 6 such as pressing a blade and a linear object or a water jet, and is pressed by a press plate 2 having the obtained uncured substrate 1a and the convex pattern 3. Things. The hollow hole 4 of the substrate 1a is buried by being pressed by the convex pattern 3 of the press platen 2 so as to be buried and isolated from one another, and the isolated hollow hole 4a is formed. The portion of the inorganic material which is pressed by the convex pattern 3 and forms the concave groove 7 is absorbed by burying the hollow hole 4, so that even when the deep concave groove 7 is formed, a higher pressure is not required as compared with the conventional method. Further, the internal pressure generated in the inorganic material at the time of pressing is absorbed by burying the hollow holes 4, so that the corners can be clearly formed even if the press platen 2 is opened in a short time.

FIG. 3 shows an example of an architectural plate according to the present invention, which has a lattice-shaped concave pattern 7 on the surface.

FIG. 4 is a sectional view taken along the line AA of the building plate of FIG. In the AA portion, the hollow hole 4 in the direction parallel to the extrusion direction remains without being divided by the press.

FIG. 5 is a sectional view taken along the line BB of the building plate of FIG. In the BB section, when the hollow hole 4 formed at the time of extrusion is pressed by the convex pattern of the press plate to form a concave groove, the isolated hollow hole 4a is divided and some hollow holes are isolated. It remains as.

〔The invention's effect〕

When the deep concave groove 7 is formed on the substrate 1a with the convex pattern 3 of the press platen 2, the corners of the concave groove 7 can be clearly formed.

The architectural plate of the present invention has several isolated hollow holes 4a isolated in this way, so that the weight is reduced and the workability is excellent, and the architectural plate is excellent in heat insulation and sound insulation. .

In general, when constructing a building plate having a concave groove 7 on the surface, nailing is performed at the concave groove 7 and fixed. However, when the hollow hole 4 remains on the lower surface of the concave groove 7 of the surface pattern, the building plate It is necessary to adjust the position where the hollow hole 4 is formed at the time of extrusion so that it does not coincide with the concave groove 7 on the surface. However, according to the manufacturing method of the present invention, the hollow hole 4 Even if the position is randomly formed, the concave groove 7
Among them, the hollow holes 4 in the direction orthogonal to the extrusion direction of the base 1 disappear during the press 3, and it is not necessary to adjust the positions where the hollow holes are formed.

[Brief description of the drawings]

FIG. 1 shows a process until a hollow hole 4 is formed in a substrate 1 in the method of the present invention. FIG. 2 shows a state immediately before the press board 2 presses the substrate 1a in the method of the present invention. FIG. 3: A perspective view of the building board of the present invention is shown. FIG. 4: FIG. 3 AA sectional view, FIG. 5: FIG. 3 BB sectional view, FIG. 6: Arranged state of the hollow holes 4 of the building board of the present invention. FIG. 7 shows a state immediately before pressing a substrate having no hollow holes 4 with the press platen 2 in the prior art. FIG. 8 shows a state immediately after the press platen 2 presses the substrate in the prior art. 1: Base, inorganic material, 1a: substrate, 2: press plate, 3: convex pattern, 4: hollow hole, 4a: isolated hollow hole, 5: extruder, 6: cutting machine, 7: concave pattern, concave groove , 8: core, 9: dice.

Claims (2)

(57) [Claims] 1. An architectural plate having a plurality of hollow holes 4 extending in the longitudinal direction of a substrate inside an inorganic material, wherein at least a concave pattern 7 orthogonal to the longitudinal direction of the substrate is formed on the surface thereof. Hollow hole 4 has concave pattern 7
A building plate characterized by being separated by a hollow hole 4a. 2. After obtaining a substrate 1a having a plurality of continuous hollow holes 4 extending in the longitudinal direction of the substrate therein by extrusion molding of an inorganic material, the surface of the substrate 1a in an uncured state is removed. Press board 2 having at least a convex pattern 3 orthogonal to the longitudinal direction of the substrate so that the hollow hole 4 is partially cut off to form an isolated hollow hole 4a.
Squeezing to form a concave pattern 7 on the surface.