JP3283719B2 - Shaping device and shaping method for raw material mat of 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 an apparatus and a shaping method for shaping a raw material mat of an inorganic board such as a wood cement board.

[0002]

BACKGROUND OF THE INVENTION A wood cement board is formed by spraying a raw material powder mainly composed of a mixture of cement and wood reinforcing material on a template, forming a mat, and curing the mat by pressing in a semi-dry method or a dry method. Manufactured by A step of brushing and shaping to smooth the surface of the mat is inserted as a stage prior to the pressing.

[0003]

2. Description of the Related Art Conventionally, in the above brushing process,
12 to the transport plate as shown (1) a method of surface is brushed by the brushing rolls (3) equalizing ness by shaping the forming matte (2) on the that have been taken. In the above method, the axis A of the brushing roll (3) is disposed at right angles to the conveying direction of the mat (2) (arrow A), and the roll (3) is in the opposite direction to the conveying direction (arrow B). Is rotated.

[0004]

The mat (2) shaped by the above method has a substantially uniform thickness and density in the lateral direction as shown in FIG. When the mat (2) having a thickness and density substantially uniform in the lateral direction is pressed, both sides of the mat (2) are extruded laterally as shown in FIG. 2) There is a problem that the thickness and density at both sides are smaller than those at the center.

[0005]

According to the present invention, there is provided an inorganic plate raw material mat (12) for solving the above-mentioned conventional problems.
Plate (11) for transporting the inorganic plate raw material mat (12) disposed on the transport plate (11) in a direction opposite to the transport direction.
A plurality of brushing roll brushing and rolling to (1
4A, 14B), and the axes A of the brushing rolls (14A, 14B) located at least on both ends are moved in the conveying direction by 9
0 ° smaller than the angle θ only inclined skein with the mat (12) surface
A material shaping device for an inorganic plate raw material mat (12) in which a part of the raw material (12A) is scraped to both sides is provided, and the inorganic plate raw material mat (12) is further transported by a transport plate (11). Then, the surface of the inorganic plate raw material mat (12) is rotated in a direction opposite to the transport direction by a brushing roll (14A, 14B) in which the roll axis A is inclined by an angle θ smaller than 90 ° with respect to the transport direction. <br/> The thickness and / or density of the inorganic plate raw material mat (12) is centered by brushing and scraping the raw material (12A) on the surface portion of the inorganic plate raw material mat (12) to both sides of the mat (12). An object of the present invention is to provide a method of shaping a raw material mat (12) for an inorganic plate so that it is larger on both sides than on a part.

[0006]

The mat (12) on the transport plate (11) is brushed by a plurality of brushing rolls rotating on the surface in a direction opposite to the transport direction. Of the brushing rolls, the brushing rolls ( 14A, 14B) axis A
Is inclined with respect to the transport direction by an angle θ smaller than 90 °, and therefore, the raw material (12) on the surface portion of the mat (12) is
A) is scraped to both sides by the reverse rotation force of the brushing rolls (14A, 14B), and as a result, the mat (12) in which the thickness and / or compression ratio at both sides is larger than that at the center is shaped. When such a mat (12) is pressed, the mat
The pushing force is exerted on both sides of the mat (12), but the both sides of the mat (12) have a higher compression ratio and a higher density than the central part, and as a result, antagonize the pushing force, and Has a thickness and a density substantially equal to those of the central portion. Also the brushing roll
If the outer bearing position of (14A, 14B) is higher than the inner side, the thickness of both sides will be larger than that of the center, and if such a mat is pressed, the density of both sides will be further increased and The antagonistic force against the pushing force also increases.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to one embodiment shown in FIGS. 1 to 10. An inorganic plate raw material mat (12) formed on a transport plate (11) is regulated on both sides by side plates (13, 13). Then, it is transported in the direction of arrow C, and its surface is brushed by a pair of left and right brushing rolls (14A, 14B). The brushing rolls (14A, 14B) are mounted on bearing frames (16, 16) extending from the upper movable frame (15).
6A) supported by the motor (17)
2) The bearing frame (16, 16) is pivoted in the opposite direction (arrow d) from the transport direction, but an arm (18, 18) is pivotally attached to the tip of the bearing frame (16, 16). Is a cleaning tool brush (19)
The arms (18, 18) are reciprocated by an air cylinder (20) mounted on the bearing frame (16, 16).

The axis A of the brushing rolls (14A, 14B) has an angle θ smaller than 90 ° with respect to the transport direction (arrow C).
Just leaning. Therefore, when the surface of the mat (12) is brushed by the brushing rolls (14A, 14B), the raw material (12A) on the surface of the mat (12) is rotated by the reverse rotational force of the brushing rolls (14A, 14B) as shown in FIG. As shown in E, it is raked on both sides of the mat (12). As a result, the compression ratio by the brushing rolls (14A, 14B) is greater at both sides than at the center, so that the thickness and / or density at both sides of the mat (12) is greater than at the center. Put the surface of the mat (12) on the brushing roll (14
(A, 14B), the external rotation is exerted by the reverse rotation force on the conveying plate (11) supporting the mat (12) in the direction in which it floats.To prevent this, the brushing rolls (14A, In the vicinity of 14B), a holding roll (21) for holding the transfer plate (11) is arranged. The press roll (21) is rotatably mounted on the tip of an arm (23) pivotally mounted on the side frame (22), and is moved in the direction of arrow (downward) in FIG. 1 by a spring (24). It is urged and rotates with the progress of the transport plate (11).

In order to receive grinding debris (12B) generated by brushing the surface of the mat (12), parabolic shaped receivers are provided on both sides of the mat (12) near the brushing rolls (14A, 14B). Place the vessel (25). The center axis (25A) of the receiver (25) is rotatably mounted on a bearing (26A) of a support frame (26), and the support frame (26) is pivotally mounted on a side frame (22). The arm (27) is rotatably attached to the tip of the arm (27), and the arm (27) is urged in the direction of arrow G by a spring (28), and thus the receiver (25) is It comes into pressure contact with the transport plate (11) and rotates as the transport plate (11) advances. The grinding dust (12B) is received by a receiver (25), is scraped off by a scraper (29) protruding from the support frame (26), and moves in the direction shown by the arrow H as shown in FIG. It is deposited on the conveyor (30) and collected in a raw material tank (not shown).

In this manner, the surface of the mat (12) is brushed by the brushing rolls (14A, 14B), and the air cylinder (20) is operated so that the rolls (14A, 14B) are not clogged. Then, the brush (19) is moved via the arm (18, 18), and the brush (19) is intermittently moved to the roll (14).
A, 14B) The grinding dust (12B) accumulated on the surface of the roll (14A, 14B) by contacting the surface is scraped off to eliminate clogging.

The mat (1) whose surface is thus shaped
2) is then brushed on the side with a side brush (31) and shaped. The side brush (31) is rotated in the direction opposite to the conveying direction by a motor (32) as shown by an arrow mark in FIG. 2, and the motor (32) is attached to a frame (33) by a mounting bracket as shown in FIG. (33A). At the time of such side shaping, the side surface of the mat (12) is shaped almost vertically, and is compressed and densified by the reverse rotation force of the side brush (31). As shown in FIG. 6, the mat (12) shaped in this way has a higher compression ratio, that is, a higher density than the central portion, because the raw material (12A) is swept on both sides as shown in FIG. Together with a large number of stacked and pressed,
As it is, or if desired, it is cured at a temperature of about 50 to 85 ° C. When pressed, both sides of the mat (12) are pushed laterally, but the both sides are harder to be extruded because the compression ratio, that is, the density is greater than that of the center part, and they are slightly extruded. Also, as shown in FIG. 7, the thickness and the density of the both sides are substantially the same as those of the center.

In this embodiment, the brushing roll (1
4A, 14B) are moved up and down via the upper movable frame (15) according to the thickness of the mat (12) being shaped, and the up / down position is adjusted. To move the upper movable frame (15) up and down, a motor (35) is attached to one corner of the upper fixed frame (34) above the upper movable frame (15) as shown in FIGS. A vertical rotation shaft (36) is extended from the motor (35) via a speed reducer (35A) and is rotatably supported by a bearing (37) mounted on the upper fixed frame (34). And three bevel gears are provided on the vertical rotation shaft (36).
(38, 39, 40) are attached, and the bevel gear (38) is attached to one end of a lateral rotation shaft (42) rotatably supported by a bearing (41) of an upper fixed frame (34). Bevel gear (43) meshed with the bevel gear (43), and the bevel gear (39, 40) is attached to the upper end of a screw (45) screwed to a screw block (44) of the upper movable frame (15). Each meshes with a gear (46). Further, a bevel gear (47) is attached to the other end of the horizontal rotation shaft (42), and the bevel gear (47) is rotatable via a bearing (48) on the other side of the upper fixed frame (34). Of the bevel gear (50, 51, 52) attached to the vertical rotating rod (49) supported by the bevel gear (50) at the end, and the bevel gear (51, 52) is It meshes with a bevel gear (54) attached to a screw rod (53) screwed into a screw block (55) of the upper movable frame (15).

In the above configuration, if the motor (35) is rotated forward and backward, the screw (4) is rotated via bevel gears (39, 46) and (40, 46).
5,45) rotates forward and backward, and further through a bevel gear (38), a bevel gear (43), a horizontal rotating shaft (42), a bevel gear (47), and a bevel gear (50).
(49) rotates forward and reverse, and the screw (53, 53) rotates forward and reverse via bevel gears (51, 54) and (52, 54), thus brushing the upper movable frame (15). Moves up and down with rolls (14A, 14B). The four screw rods (45, 53) are set to rotate synchronously.

Further, in this embodiment, the outer bearing (16A) of the brushing rolls (14A, 14B) is vertically movable as shown in FIG. 10 so that the thickness and density of both sides of the mat (12) can be adjusted. I have. That is, the bearing (16A) is supported by a pair of bolts (57, 57) screwed to a female screw bracket (56) attached to the lower edge of the bearing frame (16, 16). ) Is adjusted up and down to adjust the vertical position of the bearing (16A). Brushing roll like this
If the outer bearings (16A, 16A) of (14A, 14B) are made adjustable, the thickness and the compressibility, that is, the density, of both sides of the mat (12) can be adjusted. For example, if the outer bearings (16A, 16A) of the brushing rolls (14A, 14B) are higher than the inner bearings, the shaped mat (12) becomes higher toward both sides, and such a mat (12) When compression is performed, the compression ratio at both sides becomes larger than that at the center and the density becomes higher, so that the antagonistic force against the pushing force to the side at the time of compression is further increased.

In addition to the above embodiment, for example, as shown in FIG. 11, when the mat (12) is wide, the inclination angle θ is 90 ° on both sides.
Smaller brushing rolls (14A, 14B)
The central portion may be arranged brushing roll (14C) having an axis A ₁ perpendicular to the conveying direction of the mat (12). Brushes are used as cleaning tools for brushing rolls (14A, 14B).
Although (19) is exemplified, for example, a blade made of a metal plate such as an iron plate, an aluminum plate, a stainless steel plate, or a synthetic resin plate may be used as the cleaning tool. In the case of a blade, there is little wear like a brush and it can be used for a long time.

[0016]

Thus, in the present invention, a mat having a larger thickness and / or density at both sides than at the center is formed. Therefore, if the mat is pressed and cured and cured, both sides of the mat can be formed. Antagonizes the pushing force to the side and has a thickness substantially equal to that of the central portion, and a product having a uniform thickness density can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 9 show an embodiment of the present invention.

FIG. 1 is an explanatory perspective view.

FIG. 2 is a plan view

FIG. 3 is a partial sectional view of a presser roll.

FIG. 4 is a partial sectional view of a receiver.

FIG. 5 is a partial cross-sectional view of a side brush.

FIG. 6 is a view showing a stacked state of mats that have been shaped;

FIG. 7 is a pressing state diagram.

FIG. 8 is a plan view of a brushing roll vertical movement mechanism.

FIG. 9 is a side view of a brushing roll vertical movement mechanism.

FIG. 10 is a side view of a bearing frame.

FIG. 11 is a schematic plan view of another embodiment. FIGS. 12 to 14 show a conventional example.

FIG. 12 is a perspective view of a brushing state.

FIG. 13 is a front view of a shaped mat.

FIG. 14 is a pressing state diagram.

[Explanation of symbols]

11 Transfer plate 12 Mat 12A Raw material 14A, 14B, 14C Brushing roll 18 Arm 20 Air cylinder 21 Presser roll 25 Receptacle 31 Side brush

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-3713 (JP, A) JP-A-52-65510 (JP, A) JP-A 4-94609 (JP, U) JP-A 3-93 29510 (JP, U) Fully open 1987-41510 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B28B 1/00-1/54 B28B 11/00-19/00

Claims (8)

(57) [Claims] 1. A conveying plate for conveying a raw material mat of an inorganic plate,
The surface of the inorganic plate raw material mat placed on the transport plate is transported.
Rotating the feeding direction opposite to the direction consists of a plurality of brushing roll brushing, 90 ° to the conveying direction of the axis of the brushing rolls positioned on at least both end portions
Hara of the mat surface portion skein tilted by a small angle θ than
Material shaping device, characterized in that the raw material is raked to both sides 2. The apparatus according to claim 1, wherein a cleaning tool intermittently abutting on the surface of the brushing roll is attached to the brushing roll. 3. The apparatus according to claim 1, wherein the brushing roll is vertically adjustable. 4. An apparatus according to claim 1, wherein an outer bearing of said brushing roll is adjustable in vertical position. 5. An apparatus for shaping a raw material mat for inorganic plate according to claim 1, wherein both edges of said conveying plate are pressed by pressing rolls near said brushing roll. 6. An inorganic plate raw material mat according to claim 1, wherein a receiver for mat grinding waste is disposed on a side portion of said inorganic plate raw material mat near said brushing roll. Shaping equipment 7. The inorganic plate according to claim 1, wherein a rotating brush for grinding and shaping both side surfaces of the raw material mat of the inorganic plate is arranged behind the brushing roll. Raw material shaping equipment 8. The inorganic plate raw material mat is conveyed by a conveying plate, and the surface of the inorganic plate raw material mat is opposite to the conveying direction by a brushing roll whose roll axis is inclined at an angle θ smaller than 90 ° with respect to the conveying direction. And the raw material on the surface portion of the inorganic plate raw material mat is scraped to both sides of the mat so that the thickness and / or density of the raw material mat for the inorganic plate raw material can be reduced at both sides than at the center. A method for shaping a raw material mat of an inorganic plate, characterized in that the mat is made larger.