JP3229155B2 - Building board manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a building board mainly used as an exterior board.

[0002]

2. Description of the Related Art This type of building board is formed by molding a raw material containing a cement of a hydraulic substance into a rectangular plate by a wet method or a dry method to form a rectangular plate, and stacking the rectangular molded plates to form a rectangular parallelepiped. As shown in a plan view in FIG. 1, the laminated body 1 of the formed plate is arranged in the curing room y in the front-rear direction with the longitudinal direction thereof arranged in the left-right direction of the curing room y. The gap s between the bodies 1 is smaller than the gap S between the laminated body 1 and the left and right side walls w of the curing room y, and is reduced to a fraction of a minute. The original plate of the cement board is divided or not divided along its longitudinal direction, and a pair of fruits are cut and painted on both sides of the long side of the divided original plate or the undivided rectangular original plate. To make a rectangular building board.

[0003]

However, in the above-mentioned method for manufacturing a building board, when the formed boards are cured in a stacked state, the heat generated due to the hydraulic reaction of the cement is generated by the forming board or the original board. The hardening of the cement is accelerated in the central part of the formed plate or original plate from the peripheral part because it is hard to be released from the peripheral part in the central part of the plate. The original plate is harder at the center than at the periphery. Therefore, when the original plate is divided into a plurality of divided plates, in the step of cutting the fruit on the side of the divided plate, when cutting the side of the divided plate that was the central portion of the original plate, the side portion of the original plate is cut. The cutting resistance is greater than when cutting the side of the divided plate.

[0004] Further, when curing the laminated body of molded plates in the curing room arranged in front and rear, the gap s between the front and rear laminated bodies is smaller than the gap S between the laminated body and the left and right side walls of the curing room. Since it is a fraction, the heat generated due to the hydraulic reaction of the cement was facing the left and right side walls of the curing room on the front and rear sides of the molded plate or original plate facing the front or rear laminate. Since the cement is hardly released from the left and right sides, the setting of the cement is accelerated from the left and right sides on the front and rear sides of the molded plate or the original plate. The front and rear sides of the original plate facing the front or rear laminate during curing are harder than the left and right sides facing the left and right side walls of the curing room during curing. Therefore, in the step of cutting the fruit on the side of the divided original plate or the undivided original plate, when cutting the fruit on the side of the original plate facing the front or rear laminate during curing, The cutting resistance is greater than when cutting the fruit on the side of the original plate facing the left and right side walls of the curing room during curing.

[0005] In the step of cutting the fruit, if the cutting resistance is large, the cutting time is long and the amount of wear of the cutting tool is large. After all, the efficiency of the process of cutting the fruit is not high.

An object of the present invention is to solve the above-mentioned conventional problems.

[0007]

According to the present invention, a raw material containing a hydraulic substance such as cement is formed into a plate to form a formed plate, and the formed plates are cured and cured in a stacked state to form an original plate.
In a manufacturing method of a building board, in which an original board is divided into a plurality of divided boards, and a pair of fruits are cut on a pair of both sides of the divided board,
A method of manufacturing a building board, characterized in that a pair of both sides of a split plate for cutting a pair of fruits are side portions of an original plate.

Further, a raw material containing a hydraulic substance such as cement is formed into a plate shape to form a molded plate, the molded plates are stacked to form a laminate, and the laminate of the molded plates is arranged back and forth in a curing room. The gap between the laminates is made smaller than the gap between the laminate and the left and right side walls of the curing room, and the molded plate is cured and cured into an original plate in such an arrangement state, and the original plate is divided or divided. Without, in a method of manufacturing a building board that cuts a pair of nuts on a pair of opposite sides of a divided original plate or an undivided original plate, when a pair of both sides of the original plate that cuts a pair of fruits is cured. This is a method of manufacturing a building board, characterized in that it faces right and left side walls of a curing room.

[0009]

In the present invention, a pair of nuts are cut on a pair of opposite sides of a split plate for cutting a pair of nuts, and the pair of nuts are cut on a side portion that is not harder than the center of the original plate.

[0010] Further, a pair of both sides of the original plate for cutting a pair of fruits face the left and right side walls of the curing room during curing, and face the front or rear laminated body during curing. A pair of fruits are cut on the side portions that are not harder than the side portions and that face the left and right side walls of the curing room during curing.

Therefore, a pair of nuts are cut in a portion of the original plate which is not hard and has a small cutting resistance, and no fruit is cut in a portion of the original plate which is hard and has a large cutting resistance. That is, a cutting process that requires a long cutting time and a large amount of wear on the blade is not performed.

[0012]

According to the present invention, the efficiency of the step of cutting the fruit is high.

[0013]

【Example】

<First Embodiment> The method of manufacturing a building board of this example is a wet manufacturing method of a slag cement perlite board, which is a kind of cement board.

The composition of the raw material is 38 parts by weight of slag 34 parts by weight of cement of hydraulic material 12 parts by weight of pearlite 5 parts by weight of pulp of wood fiber Inorganic admixture and 11 parts by weight of others.

A slurry in which this raw material is suspended in water is formed and dewatered to form a mat body. The mat body is inserted into a press and formed into a rectangular plate, and is formed into a rectangular plate of 1.5 m × 3.1 m. I do. In addition, an uneven pattern is formed on one surface of the formed plate at the time of plate manufacturing.

The rectangular shaped plates are stacked in many stages to form a rectangular parallelepiped laminate, and as shown in a plan view in FIG. The space s between the laminated bodies 1 arranged in the front and rear in the curing room y and arranged in front and rear is formed with the left and right side walls w of the laminated body 1 and the curing room y.
The formed plate is heated and cured in such an arrangement state, is cured and hardened, and becomes a slag cement pearlite plate original plate. The master is dried.

A 1.5 mx 3.1 m rectangular original plate is unequally divided into two along the longitudinal direction to form a 0.5 mx 3.
A rectangular dividing plate of 1 m and a rectangular dividing plate of 1 mx 3.1 m are used.

As shown in FIG. 2, each of the two rectangular split plates 2 is formed by cutting a pair of cutouts 3 and 4 on both short sides. That is, a pair of reals 3 and 4 are cut on both left and right sides of the non-hard original plate facing the left and right side walls w of the curing room y at the time of curing. The hard part which was the central part of the original sheet and the hard parts which were the front and rear sides of the original sheet which faced the laminated body 1 on the front side or the rear side during curing were not cut.

When the pair of both sides of the split plate 2 for cutting the pair of reals 3 and 4 are both sides of the short side, the amount of cutting is smaller than a part of the long sides and is several times smaller. .

A split plate 2 obtained by cutting a pair of nuts 3 and 4
Is painted into a building board of predetermined dimensions. The slag cement pearlite board is used as an exterior panel for vertical application.

<Second Embodiment> The method of manufacturing a building board according to this embodiment is as follows.
This is a dry manufacturing method of wood fiber mixed cement calcium silicate board which is a kind of cement board.

The composition of the raw material is 35 parts by weight of hydraulic cement, 35 parts by weight of aggregate silica, 15 parts by weight of wood fiber pulp, 15 parts by weight of an inorganic admixture and 15 parts by weight.

This raw material is mixed with a small amount of water and dispersed in a mat shape on a template on a carrier plate to form a mat body. The molds on which the mats of the raw materials are placed are stacked in many stages, and the transfer plates of the upper molds are placed on the mats on the respective molds, and inserted into the press, and the mats on the respective molds are inserted. Are pressed and clamped between the lower mold plate and the upper transfer plate, respectively, and formed into a rectangular plate shape to obtain a rectangular molded plate of less than 1 m × more than 3 m.

The molded plates are stacked in multiple stages and placed in a curing room in the state of a rectangular parallelepiped laminate that has been pressed together. As shown in a plan view in FIG. The gap s between the laminated bodies 1 arranged in the curing room y in the front-rear direction by being arranged in the left-right direction of the curing room y, and the gap s between the laminated bodies 1 arranged in the front-rear direction is larger than the gap S between the laminated body 1 and the left and right side walls w of the curing room y 1/3 narrow
Then, the formed plate is heated and cured in such an arrangement state, and is cured to obtain a base plate of a cement calcium silicate plate mixed with wood fibers. The original plate is removed from the mold and dried.

A rectangular original plate of a little less than 1 m × more than 3 m is cut off at four edges, but is not divided, and a pair of cutouts is cut on both sides of the short side. That is, a pair of nuts are cut on both left and right sides of the non-hard original plate facing the left and right side walls w of the curing room y at the time of curing. No fruit is cut on the front and rear sides of the hard original plate facing the front or rear laminate 1 during curing.

The original plate obtained by cutting a pair of fruits is painted to form a building plate having a predetermined size. A building board made of wood fiber mixed cement calcium silicate board is used as an exterior board.

<Third Embodiment> A method of manufacturing a building board according to this embodiment is as follows.
This is a dry manufacturing method of hard wood chip cement board which is a kind of cement board.

The composition of the raw material is 75 parts by weight of hydraulic cement and 25 parts by weight of wood chips.

This raw material is mixed with a small amount of water and dispersed in a mat shape on a template on a carrier plate to form a mat body. The template on which the mat body is placed is stacked in a number of stages, and the transfer plate of the upper template is placed on the mat body on each template, respectively.
Insert it into the press, sandwich the mat body on each template between the lower template and the upper transport plate, press and clamp, form into a rectangular plate, and make a rectangle less than 1m x 3m Into a molded plate.

The molded plates are placed in a curing room in the state of a rectangular parallelepiped laminate which has been stacked and pressed in a number of stages, and as shown in a plan view in FIG. It is arranged in the front and rear direction of the curing room y and arranged in the front and rear of the curing room y, and the molded plate is heated in such an arrangement state to perform primary curing. Thereafter, the molded board is taken out of the curing room, released from the pressed state, cured naturally and hardened, and becomes a hard wood chip cement board.

A rectangular original plate of slightly less than 1 m × more than 3 m is divided into two equal parts along its longitudinal direction to make two rectangular divided plates of less than 0.5 m × more than 3 m.

The rectangular split plate is formed by cutting a pair of cutouts on both short sides. That is, a pair of nuts is cut into a non-hard part which was a side part of the original plate. The hard part that was the central part of the original plate is not cut.

The split plate obtained by cutting a pair of fruits is painted to form a building board having a predetermined size. A hardwood chip cement board building board is used as an exterior board.

<Modifications> 1) In the first and third embodiments, the number of divisions of the original plate 1 is 2
However, the number is set to three or more.

2) In the first, second, and third embodiments, the actual fruit is a partial fruit, but the actual fruit or another fruit is used.

3) In the first, second, and third embodiments, the formed plate, the original plate, and the divided plate are rectangular, but they may be square or other shapes.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional plan view of a curing step in a method of manufacturing a building board according to first and second embodiments of the present invention.

FIG. 2 is a schematic perspective view of two split plates obtained by cutting a pair of nuts in the method of manufacturing a building board according to the first embodiment.

FIG. 3 is a schematic cross-sectional plan view of a curing step in a method of manufacturing a building board according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminated body of molded plate 2 Divided plate 3, 4 A pair of missing parts y Curing room w Left and right side walls of curing room s Gap between laminated body of molded plates arranged in front and rear S S Laminated body of molded plate and curing room Clearance between the left and right side walls of

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

Claims (4)

(57) [Claims] 1. A raw material containing a hydraulic substance is formed into a plate shape to form a formed plate, and the formed plates are cured and cured in a stacked state to form an original plate. The original plate is divided into a plurality of divided plates. A method of manufacturing a building board for cutting a pair of nuts on a pair of both sides, wherein a pair of both sides of a split plate for cutting a pair of nuts is a side of an original plate. . 2. The method for manufacturing a building board according to claim 1, wherein the dividing board has a rectangular shape, and cuts a fruit on a short side. 3. A raw material containing a hydraulic substance is formed into a plate shape to form a molded plate, the molded plates are stacked to form a laminate, and the laminate of the molded plates is arranged in the curing room back and forth to form a laminate. The gap between them is narrower than the gap between the laminate and the left and right side walls of the curing room, and the molded plate is cured and cured into an original plate in such an arrangement, and the original plate is divided or not divided. In a manufacturing method of a building board for cutting a pair of nuts on a pair of opposite sides of a divided or undivided original sheet, a pair of opposite sides of the pair of original sheets for cutting a pair of nuts are left and right of a curing room when curing. A method of manufacturing a building board, characterized by facing a side wall of a building. 4. The method for manufacturing a building board according to claim 3, wherein the original plate for cutting the fruit is rectangular, and the fruit is cut on the short side.