JPS6144642B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an exterior wall board that is attached to the outer periphery of an assembled steel frame, for example in a building.

Conventionally, PC boards with reinforcing bars embedded in concrete have been used for exterior wall boards, such as concrete curtain wall boards. However, PC boards are heavy, and the concrete and reinforcing materials that form the foundation are expensive. Therefore, ALC boards, which are aerated concrete products cured in an autoclave, are used instead of PC boards. However, buildings made of ALC boards are not popular because they give the image of a simple prefabricated building. Furthermore, the surface of the ALC board has been spray-painted or tiled to give it decorative properties, but it has not been possible to obtain the desired strength.

SUMMARY OF THE INVENTION The present invention aims to provide a method for manufacturing an exterior wall board that has a predetermined strength, is lightweight, and can be manufactured at low cost. In order to achieve the above object, the method for manufacturing an exterior wall board according to the present invention includes pouring mortar into an outer mold, then fitting an upper mold with a disposable mold removably provided on a mounting base into the outer mold, and The disposable mold is immersed in the mortar, and after drying the mortar, the mounting base and the outer mold that have been detached from the disposable mold are removed.

Embodiments of the present invention will be described below based on the drawings. FIGS. 1 to 6 are process diagrams of the method for manufacturing exterior wall panels. The outer mold 1 has a rectangular outer frame 3 placed on a flat mold stand 2 (see FIG. 1). On the bottom surface of the outer frame 3, an inner mold mat 4 having a pattern such as a picture of a flower, for example, is laid in order to increase the decorativeness of the surface of the outer wall board, which will be described later (see FIG. 2). In the outer mold 1 on which the inner mold mat 4 is laid,
Pour mortar 5 (see Figure 3). Mortar 5 is a GRC mortar in which glass fiber is inserted into a mixture of cement and sand to increase strength. Next, the upper mold 6 is fitted into the outer mold 1 into which the mortar 5 has been poured (see FIG. 4). The upper mold 6 has a plurality of disposable molds 8 installed on a flat mounting base 7. The disposable molds 8 are lightweight reinforcing members made of, for example, a resin solidified into a rectangular shape, and in the case of a plurality of disposable molds 8, they are installed with a small interval between adjacent disposable molds 8. This is because the mortar 5 is inserted into the gap to form a channel and provide strength. And outer mold 1
The mortar 5 is dried with the upper mold 6 fitted therein.
Thereafter, the disposable mold 8 immersed in the mortar 5 remains as it is, and the mounting base 7 is separated from the disposable mold 8 and removed (see FIG. 5). Furthermore, the outer mold 1 is removed to obtain the outer wall board 9 (see FIG. 6). Exterior wall board 9
As shown in Figure 6A, the front surface has a flower picture molded to bring about a change in decoration, and the back side of the exterior wall board 9 has a disposable mold as shown in Figure 6B. 8 sides appear.

In the above embodiments, the disposable mold 8 is made of resin solidified into a rectangular shape, but a heat insulating material can be placed in the resin. Such an exterior wall board has an excellent heat insulating effect, and has the advantage of eliminating the need for heat insulation work after construction. Further, in the above embodiment, the inner mat 4 with a pattern is laid on the outer mold 1 in order to increase the decorativeness on the surface of the outer wall board 9, but the inner mat 4 may not be used when no pattern is attached. Of course. Furthermore, the shapes of the outer frame 3 and disposable mold 8 in the above embodiments are not limited to rectangles, but may be circular or polygonal such as pentagons.

Therefore, according to the present invention, the outer wall board is made by leaving the disposable mold in the mortar and drying it as it is, so that the outer wall board is strong and lightweight. Also, leaving the disposable mold as it is,
Exterior wall panels with high precision can be obtained without causing warpage or distortion in the mortar.

[Brief explanation of the drawing]

Figures 1 to 6 show a method for manufacturing an exterior wall board according to an embodiment of the present invention, with Figure 1 being an external perspective view of an outer mold, and Figure 2 being a process perspective view of laying an inner mat on an outer mold. , Fig. 3 is a cross-sectional view of the process in which mortar is poured into the outer mold, Fig. 4 is a cross-sectional view of the process in which the upper mold is fitted into the mortar, Fig. 5 is a cross-sectional view of the process in which the mounting base of the upper mold is removed, and Fig. 6 1 shows the exterior wall board obtained by removing the outer mold, A is its front perspective view, and B is its back perspective view. 1... Outer mold, 5... Mortar, 6... Upper mold, 7
...Mounting stand, 8...Disposable type, 9...Exterior wall board.

Claims (1)

[Claims] 1. Pour mortar into the outer mold, then fit the upper mold with the disposable mold removably installed on the mounting base into the outer mold, immerse the disposable mold into the mortar, and after drying the mortar, remove the disposable mold from the mold. A method of manufacturing an exterior wall board by removing the detached mounting base and the outer mold.