JPH02212103A - Manufacture of cement tile - Google Patents

Abstract

PURPOSE:To remarkably enhance the production line speed by a method wherein kneading material consisting of cement compound is extruded in the form of a plate and, after that, surface layer material, which is fed from a hopper, is pressed against the surface of an extrudate with a roll and further pressed with a forming slipper. CONSTITUTION:Kneading material A made of cement compound consisting of cement, silica, necessary reinforcing fiber and filling material is extruded from an extruder 1 in the form of plate. the resultant formed body 1' is received by a pallet conveyor 2 and transferred beneath a hopper 4 filled with surface decorative surface layer material 3 so as to press the surface layer material 3 fed from the hopper 4 against the surface of the formed body 1' and further press it with a forming slipper 6. The feeding of the surface decorative surface layer material 3 to the hopper 4 is performed with a kneader-extruder 7. Furthermore, the shape of the rear surface of the forming slipper 6 is made to be same as the shape of the side surface of a pressure roll 5.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a method for manufacturing cement roof tiles.

[Conventional technology]

Conventionally, the method for producing cement tiles is to extrude a mixed wire girder 1 made of a cement mixture onto a pallet conveyor whose surface shape follows the shape of the back surface of the tile, and if necessary, a slurry for a decorative layer is applied to the top surface of this extruded product. After supplying the tile, the surface shape of the tile is compressed using a press device installed in the middle of the transfer line, and then transferred to the curing process (this method is widely used).

[Problems with conventional technology]

However, when using the above-mentioned forming means, the pressing process in the middle of the transfer line becomes an obstacle to improving productivity, and no matter how fast the stroke timing of the press machine is, it currently takes 3 to 4 seconds per press. In short, there was a problem with mass production that left room for improvement.

[Problem to be solved by the invention]

In view of the above-mentioned problems, this invention was made with the aim of improving productivity in the so-called extrusion pallet molding method.

[Technology that led to solving the problem]

That is, the method for manufacturing a cement roof tile according to the present invention involves extruding a cross-wire material made of a cement mixture into a plate shape, receiving the molded body on a conveyor, and conveying the molded body on the conveyor to the lower part of a hopper filled with the surface layer material. and pressing the surface layer material supplied from the hopper onto the surface of the molded body with a roll,
Furthermore, it is characterized in that it is pressed with a molding slimper.

〔Example〕

Next, the present invention will be explained in detail.

FIG. 1 is a side view of an apparatus for carrying out the method of this invention;
The figure is a sectional view of the main part of the device shown in Figure 1, and Figures 3 (A) and (B).
2 is a side view of the compression roll shown in FIG. 2. FIG.

The method for producing a cement roof tile according to the present invention involves extrusion molding a mixed wire material made of a cement mixture consisting of cement, silica, necessary reinforcing fibers, and a filler into a plate shape by extrusion molding [1]. is received on a pallet conveyor 2, and on this conveyor 2, the molded body 1 is transferred to a surface layer material 3 for surface decoration.
The surface layer material 3 supplied from the hopper 4 is pressed onto the surface of the molded body 1 by a roll 5, and further pressed by a molding slipper 6.

In the above, the surface material for surface decoration 3 is supplied to the hopper 4 by the kneading extruder 7. It goes without saying that the shape of the lower surface of the molded slipper 6 is the same as the shape of the side surface of the press roll 5.

The roll 5 has a surface shape as shown in FIG. 3 (a) or (b) depending on the surface shape of the tile to be molded.

[Effect]

In this invention, the molded product 1° that has been extruded and received by the conveyor 2 is supplied with the cosmetic surface material 3 on the lower surface of the hopper 4, and then the surface is continuously polished by the roll 5 and the molding slipper 6. As the tiles are compressed and shaped, tiles are formed through a series of assembly operations.

〔effect〕

As explained above, when forming roof tiles by extrusion molding, this invention eliminates the conventional process of using a press machine and uses a continuous compression process using a forming slipper, thereby reducing the production line speed. It is possible to significantly increase the productivity, which dramatically improves productivity.

[Brief explanation of the drawing]

FIG. 1 is a side view of an apparatus for carrying out the method of this invention;
The figure is a sectional view of the main part of the device shown in Figure 1, and Figures 3 (A) and (B).
is the end of the compression roll shown in Figure 2/I! I

Claims (1)

[Claims] (1) A mixed wire material made of a cement mixture is extruded into a plate shape, the molded body is received on a conveyor, the molded body is transferred by the conveyor to the lower part of a hopper filled with surface layer material, and is supplied from the hopper. A method for manufacturing a cement roof tile, which comprises pressing the surface material to be molded onto the surface of the molded body using a roll, and further pressing the surface material using a molding slipper.