JP3228062B2 - Apparatus and method for producing inorganic plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing apparatus and a manufacturing method suitable for manufacturing a corrugated inorganic plate.

[0002]

2. Description of the Related Art As shown in FIG. 6, a green sheet 102 is placed on a wire conveyor having a plurality of wires 101 arranged side by side, as shown in FIG.
Due to the weight of the green sheet 102, a plurality of wires 10
After forming a corrugation by forming a plurality of dents in one, a corrugation was formed by pressing with a press.

[0003]

However, in the above-mentioned conventional example, since the green sheet is soft, the material near both sides of the wire, that is, the material of the mountain portion is pulled, and it is difficult to secure a uniform waveform shape. Also, it takes a considerable amount of time to form the corrugated shape by the weight of the green sheet, and the productivity of the inorganic plate is low. The present invention has been made in view of this point, and it is an object of the present invention to provide an inorganic plate manufacturing apparatus and a manufacturing method capable of manufacturing an inorganic plate having a uniform waveform shape and improving productivity. .

[0004]

According to a first aspect of the present invention, there is provided an apparatus for manufacturing an inorganic plate in which a plurality of elongate suction machines are arranged in a longitudinal direction and the distance between the suction machines is freely expandable and contractable. And a press for forming a waveform.

According to a second aspect of the present invention, there is provided an apparatus for manufacturing an inorganic plate according to the first aspect, wherein the suction machines are connected by a flexible sheet.

According to a third aspect of the present invention, there is provided a method of manufacturing an inorganic plate, wherein a plurality of elongate suction machines are arranged in a longitudinal direction and a space between the suction machines is freely expandable and contractable. And a state in which a green sheet is adsorbed to each suction machine via a flexible sheet connected between the suction machines when performing a waveform formation using an inorganic plate manufacturing apparatus comprising a press for forming a waveform and a press for forming a waveform. Then, a waveform is formed by reducing the interval between the suction devices to form a waveform, and then pressing with the waveform forming press to form a waveform.

[0007]

In the apparatus for manufacturing an inorganic plate according to the first aspect of the present invention, the interval between the suction machines is reduced while the flat green sheet is attracted to each of the scalable suction machines for forming a waveform. Thereby, after loosening the green sheet adsorbed by both suction machines and preliminarily forming a corrugated shape,
Pressing is performed with a corrugating press to form a corrugated shape.

According to a second aspect of the present invention, there is provided an apparatus for manufacturing an inorganic plate, wherein a green sheet is adsorbed to each suction device via a flexible sheet connected between the suction devices for forming a waveform. By shortening the distance from the suction device, the flexible sheet forms a certain corrugated shape, and the green sheet adheres to this, restricting the movement of the green sheet and causing inconvenience such as slipping or shifting of a part of the green sheet. , And a stable and uniform waveform shape can be obtained.

According to a third aspect of the present invention, there is provided a method for manufacturing an inorganic plate, wherein a suction unit is provided with a green sheet adsorbed on each suction unit via a flexible sheet connected between the corrugation forming suction units. After obtaining a stable and uniform corrugated shape by shortening the gap with the suction machine, press and mold with the upper and lower molds of the corrugating press having substantially the same corrugated shape, and cure and cure. Thereby, a stable and uniform corrugated inorganic plate can be obtained.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a structural view of a manufacturing process incorporating an apparatus for manufacturing an inorganic plate according to an embodiment of the present invention. FIG. 2 is a perspective view of a waveform forming suction device of the inorganic plate manufacturing apparatus according to one embodiment of the present invention. 3 and 4 are side views of the inorganic plate manufacturing apparatus according to the embodiment. 1 and 2
As shown in FIG. 3, this apparatus for producing an inorganic plate comprises a suction device for forming a waveform, comprising a box-shaped main body 1 and four long suction devices 2, and a press for forming a waveform. Four suction machines 2
Are arranged side by side at fixed intervals, but are slidable in the up, down, left, and right directions. The distance between the suction machines 2 is automatically maintained while maintaining the same distance by the air piston installed above each suction machine 2. Can be expanded or contracted.

Each suction device 2 is suctioned by air and has a plurality of suction ports 3. Body 1
Has a cutting edge 5 at its peripheral end. The corrugating press includes a press upper die 9 and a press lower die 8.

A method of using the apparatus for producing an inorganic plate will be described below. First, the suction devices 2 of the manufacturing apparatus are brought into contact with the green sheets 7 conveyed onto the belt conveyor 4, and the green sheets 7 are sucked into the suction ports 3 of the suction devices 2. At the same time, the main body 1 is lowered and the cutting blade 5 cuts the green sheet 7 into product dimensions. In this case, the distance between the suction machines 2 is set to be wide in advance, and the green sheet 7 is sucked in this state. Thereafter, the distance between the suction devices 2 is reduced to a predetermined width while raising each suction device 2 together with the main body 1, so that the green sheet 7 is slackened to form a waveform. FIG. 4 shows this state. According to this manufacturing apparatus, since the corrugated shape is forcibly formed in a state where the green sheet 7 is adsorbed by a certain area, a uniform corrugated shape can be obtained and the productivity is improved.

Thereafter, each suction device 2 with the corrugated green sheet 7 being sucked is moved to place the green sheet 7 on the lower die 8 of the press, and the green sheet 7 is separated from each suction device 2. . The press lower die 8 and the press upper die 9 have substantially the same corrugated shape as the above-mentioned corrugated shape. The green sheet 7 is pressed and formed by the press lower die 8 and the press upper die 9. This increases the density of the corrugated green sheet 7 and performs the final shaping. Thereafter, autoclaving or moist heat curing is performed and cured to obtain an inorganic plate as a final product.

The material of the green sheet 7 was as follows. As an autoclave curing composition, Portland cement 40 to 60% by weight, silica powder 25 to 45% by weight, filler 3 to 10% by weight, clay 0.5 to 2% by weight, asbestos 0 to 10% by weight, pulp 3 to 5% by weight %, And if necessary, 0.5 to 2% by weight of unbeaten pulp and 0.5 to 1.5% by weight of organic fibers are added. In addition, wollastonite, mica, etc. are used as fillers, sepiolite, kaolinite, apatalite, etc. are used as clay, materials of 4 to 6 class are used as asbestos, and beating degree is 50 as pulp. Degree SR ~ 85
The one of degree SR was used. Vinylon as organic fiber,
Use polypropylene or the like. As for the wet heat curing composition, 65 to 85% by weight of Portland cement, 5 to 10% by weight of silica (silica No. 6 to 8 silica sand), and all other fillers and clays are the same as in the autoclave curing composition, and Portland cement 75 to 90
Wt., Silica 10 to 13 wt.
To No. 8 silica sand), 5 to 12% by weight of asbestos, and 0.5 to 2% by weight of pulp.

FIG. 5 is a side view of an apparatus for manufacturing an inorganic plate according to another embodiment of the present invention. This manufacturing apparatus is similar to the case of FIG. 2, but each of the suction machines 2 is connected by one continuous flexible sheet 6, and each of the suction machines 2 is connected through the flexible sheet 6. The difference is that the green sheet is adsorbed to the suction port 3. Other configurations are the same as those in FIG. The configuration of the manufacturing process is the same as that of FIG.

A small hole 10 is formed in the flexible sheet 6 at a portion in contact with the suction port 3.
To the suction port 3. The material of the flexible sheet 6 can be rubber, resin, metal, paper, cork, or the like. Its thickness is suitably about 1 to 3 mm.

The method of using the apparatus for producing an inorganic plate will be described below. First, the green sheet 7 is sucked to the suction port 3 of each suction device 2 with the flexible sheet 6 interposed from above the green sheet 7 conveyed on the belt conveyor 4. In this case, the green sheet 7 is sucked to the suction port 3 of each suction machine 2 by the small hole 10 of the flexible sheet 6. Thereafter, a corrugated shape is formed on the green sheet 7 in the same manner as in the case of FIG. In this case, by reducing the interval between the suction devices 2 to a predetermined width, the flexible sheet 6 forms a constant waveform shape. When the green sheet 7 is sucked into the suction port 3 of each suction device 2 via the flexible sheet 6 in this state, the movement of the green sheet 7 is restricted because the green sheet 7 is in close contact with the flexible sheet 6, and the green sheet 7 is restrained. Can be obtained stably and uniformly without causing inconveniences such as slipping or shifting of a part of the waveform. Green sheet 7
2 can adhere the green sheet 7 to the suction port 3 of each suction device 2 with a smaller suction force than in the case of FIG.

Thereafter, the upper mold 9 and the lower mold 8 having a waveform substantially the same as the above-mentioned corrugated shape are pressed together, pressed and cured to obtain an inorganic plate as a final product. Since a more uniform waveform shape can be obtained stably by the manufacturing apparatus, the green sheet 7 during press molding can be obtained.
Since a uniform pressure is applied to the green sheet 7, there are few inconveniences such as application of residual stress to the green sheet 7, and an inorganic plate as a final product can be stably obtained.

As described above, the present invention provides an inorganic plate manufacturing apparatus capable of manufacturing an inorganic plate having a uniform corrugated shape and improving the productivity, and a method of manufacturing an inorganic plate using the inorganic plate manufacturing apparatus. It is intended to provide a manufacturing method.

[0020]

According to the apparatus for manufacturing an inorganic plate according to the first aspect of the present invention, since the green sheet is forcibly shaped in a state where the green sheet is adsorbed by a fixed area, a uniform waveform can be obtained. And also increase productivity.

According to the apparatus for manufacturing an inorganic plate according to the second aspect of the present invention, in addition to the effect of the apparatus for manufacturing an inorganic plate according to the first aspect, a more uniform waveform shape can be obtained stably with a relatively small suction force. be able to.

The apparatus for manufacturing an inorganic plate according to the third aspect of the present invention can obtain a green sheet having a stable and uniform corrugated shape and a product having a stable and uniform corrugated shape.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a manufacturing process of an inorganic plate according to one embodiment of the present invention.

FIG. 2 is a perspective view of a waveform forming suction device of the inorganic plate manufacturing apparatus.

FIG. 3 is a side view of the same inorganic plate manufacturing apparatus.

FIG. 4 is a side view of the same inorganic plate manufacturing apparatus.

FIG. 5 is a side view of an apparatus for manufacturing an inorganic plate according to another embodiment of the present invention.

FIG. 6 is a sectional view of a conventional example.

[Explanation of symbols]

 2 Suction machine 3 Suction port 6 Flexible sheet 7 Green sheet 8 Press lower mold 9 Press upper mold

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B28B 3/00-5/12 B28B 11/00-19/00

Claims (3)

(57) [Claims] 1. Production of an inorganic plate comprising: a corrugated suction device in which a plurality of elongate suction machines are juxtaposed in the longitudinal direction and the interval between the suction machines is freely expandable and contractable; and a corrugated press. apparatus. 2. The apparatus for manufacturing an inorganic plate according to claim 1, wherein the suction machines are connected by a flexible sheet. 3. A method of manufacturing an inorganic plate comprising: a corrugated suction device in which a plurality of elongate suction machines are juxtaposed in a longitudinal direction and a distance between the suction machines is freely expandable and contractable; and a corrugated press. When a waveform was formed using the apparatus, a waveform was formed by shortening the interval between the suction machines in a state where the green sheets were adsorbed to the respective suction machines via the flexible sheets connected between the suction machines. Thereafter, a corrugation is formed by pressing with the corrugating press.