JPH028007A - Manufacture of cement plate - Google Patents

Abstract

PURPOSE:To prevent the fluctuation of quality after curing from occurring by a method wherein a sensor mark, which is shaped at the peripheral ear part of a green plate, is detected by a sensor so as to seat only product-shaped plate parts on a seating pallet with a suction shifter. CONSTITUTION:A sensor mark 5 is produced at a peripheral ear part 3 at press molding. A green plate 2 after press molding is transferred onto a positioning conveyer 6 and stopped at the predetermined position by being detected its position with a positioning detecting device 7, which detects the sensor mark 5. A suction shifter 10 sucks only product-shaped plate parts 4 under evacuation suction so as to seat them on a seating pallet 11. When the green plate 2 after press molding is positioned at the correct position on the positioning conveyer 6 and the seating pallet 11 is installed at the predetermined position, the suction shifter 10 automatically seats the product-shaped plate part 4 onto the seating pallet 11. Since the seating is done with no shifting of parts, the fluctuation of quality after curing is hard to develop.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for manufacturing a cement board, in which a green board manufactured by a papermaking method, an extrusion method, etc. is press-molded to form a surface pattern, and the green board is When loading and curing products with product-shaped plates cut into them, loading can be carried out accurately.

[Prior art]

Conventionally, green boards manufactured by papermaking, extrusion, etc. are press-molded to form a surface pattern, and the product-shaped boards are cut leaving peripheral edges inside the green board, and then transported by a transport conveyor and transferred by suction. When loading only #) a crystal shaped plates onto the loading pallet using the loading machine, positioning was not performed accurately and misalignment occurred when the product shaped plates were loaded onto the loading pallet using suction and transfer. .

That is, in the past, positioning was performed by detecting the outer edge of the raw board using a sensor. For this reason, misalignment was likely to occur at a position that was not in contact with the product shape plate.

[Problem to be solved by the invention]

In the conventional technology, positioning is performed by detecting the outer edge of the raw board with a sensor, but since the position is far away from the product shape plate, the position of the product shape plate is inaccurate. When the products were loaded onto a loading pallet using a suction transfer machine, the product shape plates would shift and the product would not be loaded correctly, and there would be puffiness during the curing process, which is a subsequent process.

[Means for solving problems]

The method for manufacturing a cement board of the present invention involves forming a surface pattern on a raw board manufactured by a papermaking method, an extrusion method, etc. by press molding, and cutting a product-shaped board while leaving a peripheral edge portion in the raw board, In the manufacturing method of cement board, which is transported by a transport conveyor and only the product-shaped board part is loaded onto a pallet using a suction rod, a sensor mark is simultaneously formed on the peripheral edge of the green board when the green board is press-formed. death,
This method of manufacturing a cement board is characterized in that the sensor mark is detected by a sensor, and only the product-shaped board part is loaded onto a loading pallet using a suction rod.

[Example] In FIGS. 1 and 2, 1 is a transport conveyor and 2 is a green board. This shows the raw board 2 after press forming.The raw board 2 has a rectangular shape, and a surface pattern is formed by press forming, and a product shape plate part 4 is formed by leaving a peripheral edge part 3.
is formed by cutting.

5 is a sensor mark, which is formed on the peripheral edge portion 3 at the same time as press molding. The sensor mark 5 is most suitable for positioning if it is formed on the product shape plate 4, but forming the sensor mark 5 on the product shape plate 4 does not affect the appearance of the product shape plate 4. and reduce the appearance value of the final product. The press-formed raw board 2 transferred onto the positioning conveyor 6 has its position detected by a positioning detection device 7 that detects the sensor mark 5, and stops at a predetermined position. In this case, the servo motor 8 is used to move the positioning conveyor 6 to the first green plate 2 after press forming.
The distance to be moved to a predetermined position may be detected by the rotation speed of the servo motor 8, and from the second sheet onwards, the position of the green plate 2 after press forming may be determined by the rotation speed of the servo motor 8.

There is an advantage that positioning of the second and subsequent sheets can be performed at high speed using the rotation speed of the servo motor 8. When positioning is performed using the rotational speed of the servo motor 8, a detection device for detecting the end of the raw plate 2 may also be used. 10 is a suction rod machine, which suctions only the product-shaped plate part 4 by vacuum suction, and attaches it to a loading bar (loading bar).
11. When the green plate 2 after press forming is positioned at an accurate position on the positioning conveyor 6 and the loading pallet 11 is installed at a predetermined position, the suction rod fighter lO
The product shape plate section 4 is automatically loaded onto the loading pants) 11. Moreover, loading is carried out without any deviation, and variations in quality are unlikely to occur after curing.

〔Effect of the invention〕

Since the present invention has the above-mentioned groove structure, when it is correctly loaded on a loading pallet and cured, it is difficult to cause quality buffing.

[Brief explanation of the drawing]

FIG. 1 is a process diagram of an embodiment of the present invention, and FIG. 2 is a perspective view of the process diagram shown in FIG. In the figure, l is a transportation conveyor, 2 is a raw board, 3 is a peripheral edge portion, 4 is a product shape plate portion, 5 is a sensor mark, 6 is a positioning conveyor, and 10 is a suction rod.

Claims (1)

[Claims] (1) A surface pattern is formed on a green board manufactured by a papermaking method, an extrusion method, etc. by press molding, and a product-shaped board is cut while leaving a peripheral edge inside the green board, and the product is transported by a transport conveyor. In a cement board manufacturing method in which only the product-shaped board part is loaded onto a loading pallet using a suction transfer machine, when the green board is press-formed, a sensor mark is simultaneously formed on the peripheral edge of the green board, and the sensor mark is A method for manufacturing a cement board, characterized in that a sensor detects this, and a suction transfer machine loads only the product-shaped board portion onto a loading pallet.