JPH0546289B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a building board having joint grooves and decorative recesses or protrusions.

<Prior Art> Building boards with grooves include tile-like building boards in which the grooves are formed in a lattice pattern, and horizontal building boards in which the grooves are formed in horizontal lines.

When manufacturing tiled building boards,
A flat plate of ALC board is manufactured, and the surface of the flat plate is cut with a cutter in the longitudinal direction and in the orthogonal direction to form grooves in a lattice pattern.

In addition, when manufacturing horizontal building boards, a flat plate of wood chip cement board is manufactured, and the surface of the flat plate is cut with a cutter in the longitudinal direction to form horizontal line grooves.

<Problem to be solved by the invention> When manufacturing tiled building boards,
Requires ALC board manufacturing process and joint groove cutting process,
It takes a lot of effort. Furthermore, tiled building boards only have grid-like grooves on the surface;
There are no decorative recesses or protrusions other than the joint grooves, and it cannot be said that it exhibits a sufficient aesthetic appearance.

In addition, when manufacturing horizontal building boards, a board making process for wood chip cement boards and a process for cutting joint grooves are required.
It takes a lot of effort. Furthermore, horizontally laminated building boards only have horizontal line-shaped grooves on the surface, and have no decorative recesses or protrusions other than the grooves, so it cannot be said that they exhibit a sufficient aesthetic appearance.

Therefore, we developed a manufacturing method in which joint grooves and decorative recesses or protrusions are formed together when manufacturing ALC boards or wood chip cement boards.

However, ALC boards have countless air bubble holes formed on the surface, and wood chip cement boards have large wood chips as raw materials, so the surface is uneven, so it is difficult to clearly distinguish minute decorative depressions or protrusions. cannot be molded into

Therefore, the aesthetic appearance is not sufficient even though decorative recesses or protrusions are provided in addition to the grooves.

An object of the present invention is to solve the conventional problems as described above.

<Means for Solving the Problems> The present invention involves applying cement and small pieces of wood onto a template having large protrusions for joint grooves and small protrusions or recesses for decorative recesses or protrusions on the molding surface. Spread the mixed raw materials, then sprinkle a raw material mixture of cement and wood chips larger than the wood chips above, stack the raw materials on the template in a mat shape, and then press the raw materials on the template. The present invention is a method for manufacturing a building board with joints, which is characterized by manufacturing a building board with joints and decorative recesses or protrusions formed on the surface thereof.

<Function> In the present invention, the board making process, the joint groove forming process, and the decorative recess or convex part forming process are performed in one step.

Since the raw material with fine wood chips is placed on the molding surface of the template, the surface of the building board is made of the raw material with fine wood chips, and minute decorative recesses or convexities are clearly molded.

Since raw materials with large pieces of wood are placed on top of raw materials with small pieces of wood, the core of the building board is composed of raw materials with large pieces of wood, and the lightness of the building board and workability such as nailing and cutting are not impaired. .

<Effects of the Invention> According to the present invention, a building board in which fine decorative recesses or convex portions are clearly formed in addition to the joint grooves can be efficiently manufactured.

<First Example> Template 1 used in the method for manufacturing building boards with joints and grooves of this example
is for tiled building boards, and as shown in Figures 1 to 3, large protrusions 2 for joint grooves are formed in a lattice shape on the molding surface, and rectangular areas surrounded by the protrusions 2 are formed on the molded surface. A large number of small convex portions 3 for decorative recesses are distributed and formed on each molding surface of the shape.

The template 1 is placed on a conveyance plate, with the molding surface from which the protrusions 2 and convex portions 3 protruding facing upward.

On top of this template 1, a raw material made of a mixture of cement, fine wood chips, and a small amount of water is sprinkled to a thickness that covers the ridges 2 of the template. Further, on top of the raw material, a raw material prepared by mixing cement, wood chips larger than the wood chips in the raw material, and a small amount of water is sprinkled in a mat shape. Further, on top of the mat of raw materials, the same raw material as the raw material in the bottom layer is sprinkled in a mat shape.

The weight ratio of cement to wood chips in each raw material is approximately 3:1. The weight of water is about half the weight of cement and wood chips.

The templates 1 in which raw materials are laminated in three layers are stacked in multiple stages, and the transport plates of the upper templates 1 are placed on top of the raw materials on each template 1 and brought into contact with each other, and inserted into a press. The raw material on each template 1 is sandwiched between the template 1 below it and the conveying plate above it and pressed together.

Thereafter, the pressed raw material on each template 1 is heated and hardened, cured and dried to obtain a building board 4 with a tile-like appearance of a wood chip cement board.

As shown in FIG.
Joint grooves 5 are formed in a lattice pattern on the surface that was in contact with the joint grooves 5, and a large number of small decorative recesses 6 are dispersed and formed on each rectangular surface surrounded by the joint grooves 5.

As shown in FIG. 5, the building board 4 is cut at a predetermined joint groove 5 to form a rectangular board 7 of a predetermined size, and a rib 8 is formed on a pair of sides to form an exterior wall board made of wood cement board. shall be.

<Second Example> Template 1 used in the method for manufacturing building boards with joints and grooves of this example
1 is for horizontal building boards, and as shown in Figures 6 and 7, there are large protrusions 12 for joint grooves on the molded surface.
is formed into a horizontal line shape, and a large number of small convex portions 13 for decorative recesses are distributed and formed on each elongated rectangular molding surface sandwiched between the protrusions 12.

The template 11 is placed on the carrier plate as in the previous example.

On the template 11, as in the previous example,
Spread a mixture of cement, wood chips, and water in three layers.

The templates 11 in which raw materials are laminated in three layers are stacked in multiple stages, as in the previous example, and inserted into a press to press the raw materials on each template 11.

Thereafter, the pressing material on each template 11 is heated and cured, cured, and dried to obtain a horizontally laminated building board 14.

As shown in FIG. 8, this building board 14 has horizontal grooves 15 formed on the surface that was in contact with the template 11, and each of the elongated rectangular surfaces sandwiched between the grooves 15 has A large number of small decorative recesses 16 are formed in a dispersed manner.

As shown in FIG. 9, the building board 14 is cut at a predetermined joint groove 15 to form a rectangular board 17 of a predetermined size, and a rib 18 is formed on a pair of side surfaces to form an exterior wall board.

[Brief explanation of the drawing]

FIG. 1 is a partial plan view of a template used in the method for manufacturing a building board with grooves according to the first embodiment of the present invention. FIG. 2 is an end view taken along the - line in FIG. 1. FIG. 3 is an end view taken along the - line in FIG. 1. Figure 4 shows
FIG. 2 is a partial perspective view of a building board obtained by the same manufacturing method. FIG. 5 is a partial perspective view of an exterior wall board obtained from the same building board. FIG. 6 is a partial plan view of a template used in the method of manufacturing a building board with joints according to the second embodiment. FIG. 7 is a - line end view of FIG. 6.
FIG. 8 is a partial perspective view of a building board obtained by the same manufacturing method. FIG. 9 is a partial perspective view of an exterior wall board obtained from the same building board. 1, 11: Formwork, 2, 12: Projection for groove,
3, 13: Convex portion for decorative recess, 4, 14: Building board, 5, 15: Groove, 6, 16: Decorative recess.

Claims (1)

[Claims] 1. Spread raw material mixed with cement and fine wood chips onto a template that has large protrusions for joint grooves and small protrusions or depressions for decorative depressions or protrusions on the molding surface, and then sprinkle cement on top of the template. After spreading the raw material mixed with wood chips larger than the above wood chips and stacking the raw material on the template in a pine shape, the raw material on the template is compressed to create joint grooves and decorative recesses or protrusions on the surface. A method for manufacturing a building board with grooves, characterized by manufacturing a building board with grooves formed therein.