JPH06277537A - Gypsum board pulverizer - Google Patents

Abstract

PURPOSE:To finely pulverize gypsum boards generated in large quantities on a building site to make their transportation convenient. CONSTITUTION:A slit 3 into which a gypsum board is inserted is made in a box body 1. A pair of pinch rollers 6 on which a lot of biting grooves 13 perpendicularly intersecting the inserting direction of the gypsum board 2 are formed are energized in the direction in which they push each other to rotatably support them on the back side of the slit 3 in the box body 1. On the further back side of the pinch rollers 6, a pair of cutter rollers 9 forming pulverizing teeth 8 are rotatably supported. The pinch rollers 6 each are rotated inwards at a low speed and also the cutter rollers 9 each are rotated inwards at a speed higher than that of the pinch rollers 6. The gypsum board is transferred inside the box body 1 while it is held by the pinch rollers 6 to pulverize the gypsum board 2 by the pulverizing teeth 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gypsum board crusher for finely crushing gypsum board used as a building material.

[0002]

2. Description of the Related Art Conventionally, gypsum board has been widely used as a wall material for buildings, but when processing the gypsum board at a construction site, a large amount of large and small gypsum board pieces are generated. Since gypsum board is a non-combustible material, it cannot be incinerated at the construction site and needs to be transported to the treatment site, but large gypsum board pieces are very bulky, and the accumulated gypsum board pieces are transported many times. There was trouble to do it. Therefore, in order to easily carry the gypsum board pieces and reduce the number of times of carrying, it was necessary to crush the generated gypsum board pieces into small pieces.

[0003]

However, in spite of the above situation, there has been a long-felt need for a means for finely crushing gypsum board pieces produced at a construction site.

In view of the above circumstances, an object of the present invention is to provide a gypsum board crusher for finely crushing gypsum board pieces to reduce transportation work.

[0005]

Means for Solving the Problems According to the means for solving the above problems according to the present invention, a slit in which a gypsum board can be inserted is formed in a box body, and the slit is inserted in the box body and is orthogonal to the insertion direction of the gypsum board. A pair of pinch rollers having a large number of biting grooves are urged in directions to abut each other and rotatably supported,
A pair of cutter rollers having grinding teeth are rotatably supported on the rear side of the pinch roller, the pinch rollers are rotated inward at a low speed, and the cutter rollers are moved inward at a speed higher than that of the pinch rollers. It is characterized in that the gypsum board is rotated and transferred to the inside of the box while being pinched by a pinch roller, and the gypsum board is crushed by crushing teeth.

[0006]

In the gypsum board crusher according to the present invention, the pair of pinch rollers and the pair of cutter rollers rotate in the direction of pulling the gypsum board into the box body, and the gypsum board inserted from the slit is eaten by both pinch rollers. The gypsum board is taken in and transferred between the cutter rollers rotating at a higher speed than the pinch roller while securely holding the gypsum board and crushed by the crushing teeth formed on the cutter roller.

[0007]

Embodiments of the gypsum board crusher according to the present invention will be described in detail with reference to the drawings. This crusher is a box body 1, which has a laterally elongated slit 3 formed in the front surface of the side wall of the box body 1 into which a plaster board 2 can be inserted, while a left side wall in the box body 1 has a substantially L shape. A pair of left arms 4 and 4 which are bent to be vertically opposed to each other and attached so as to be vertically swingable, and a pair of right arms 5 having the same shape as the left arm 4 on the right side wall in the other box body 1.
The left arm 5 and the left arm 4 are vertically opposed to each other and are attached so as to be vertically swingable. The pinch rollers 6 and 6 can be rotated between the left and right arms 4 and 5, respectively, and the left and right arms 4 and 5 can be rotated.
5, the left arm 4, 4 and the right arm 5, 5 are further supported by springs 7 respectively attached to the two pinch rollers 6, 6 which are vertically opposed to each other in a direction in which they approach each other. It gives a holding power when the gypsum board 2 is bitten. At this time, the contact lines of both pinch rollers 6 and 6 are located opposite to the rear side of the slit 3. Further on the rear side of both pinch rollers 6 and 6, a pair of cutter rollers 9 and 9 having crushing teeth 8 are rotatably provided.

Pinch roller 6 and cutter roller 9
Is for transmitting the power of the electric motor 10 through the gear box 11, but the gypsum board 2 inserted from the slit 3 is rotated inward at the same speed so as to bite into the inside of the box 1. The gear box 11 is set so that one of the pinch rollers 6 and 6 rotates at a low speed and the other cutter rollers 9 and 9 rotate at a higher speed than the pinch rollers 6 and 6. The ratio of the rotation speed of the pinch roller 6 and the rotation speed of the cutter roller 9 is set to approximately 1: 5. Further, the pinch roller 6 transmits power from the output shaft of the gearbox 11 via the constant velocity ball joint 12, so that even if the pinch roller 6 swings, no extra load is applied. There is. Needless to say, the rotation speed ratio is not limited to the above ratio.

The pinch roller 6 has a large number of bite grooves 13 formed along its longitudinal direction so that the gypsum board 2 can be reliably held and fed between the cutter rollers 9, 9. As shown in FIG. 2, the cutter roller 9 has a shape in which the crushing teeth 8 are spirally arranged for convenience of crushing, that is, the crushing teeth 8 are formed in a substantially hob shape. The patterns of the crushing teeth 8 each have a spiral shape of reverse rotation, and the crushing teeth 8 of one cutter roller 9 are
The crushing teeth 8 of the other cutter roller 9 are inserted at intervals of, and the crushing teeth 8 are always turned inward when the cutter rollers 9 are respectively rotated inward in the direction of pulling the gypsum board 2 into the box body 1.
They do not collide with each other.

A discharge port 14 is provided in the lower part of the side wall of the box body 1, and the crushed material 15 of the gypsum board 2 crushed by the cutter roller 9 is collected in the lower part of the box body 1 and the discharge port 14
A belt conveyor 16 for transporting to is provided. Further, a support plate 17 continuous with the lower surface of the slit 3 is vertically provided in the slit 3 so that the plaster board 2 can be easily inserted into the slit 3. Further, in consideration of the convenience and workability of the transportation of the device itself, the trolley 1 equipped with wheels 18 of the gypsum board crusher.
It is desirable to fix it on top of 9.

Next, the operation of the gypsum board crusher according to the present invention will be described with reference to FIGS. 3 to 5. The pinch rollers 6 and 6 and the cutter rollers 9 and 9 are rotated as described above, and the gypsum board 2 is inserted between the pinch rollers 6 and 6 through the slit 3 (FIG. 3). The left and right arms 4, 5 swing by the thickness of the gypsum board 2, both pinch rollers 6, 6 bite the gypsum board 2, and the cutter roller while holding the gypsum board 2 by the biasing force of the spring 7. Transfer between 9 and 9 (Fig. 4). The gypsum board 2 is crushed by the crushing teeth 8 formed on the cutter roller 9 (FIG. 5). The crushed material 15 falls on the belt conveyor 16 and is conveyed to the discharge port 14.

The outlet 14 is provided with a bag, and the outlet 1
The crushed material 15 discharged from the No. 4 is packed into a bag. The crushed material 15 packaged in the above process is
Since it is not bulky, it is convenient to carry and can reduce the labor of carrying.

[0013]

The gypsum board crusher according to the present invention is configured as described above, and when the gypsum board is inserted between the pinch rollers through the slit, the gypsum board is bitten by both the pinch rollers and securely held. While being transferred between the cutter rollers, the gypsum board can be finely ground by the grinding teeth. Therefore, since the pulverized product generated by the above steps is not bulky, it is possible to reduce the conventional troublesome transportation work.

[Brief description of drawings]

FIG. 1 is a perspective view showing a gypsum board crusher according to the present invention with a part cut away.

FIG. 2 is a plan view of a pair of cutter rollers.

FIG. 3 is an explanatory view showing a usage state of the gypsum board crusher according to the present invention.

FIG. 4 is an explanatory view showing a usage state of the gypsum board crusher according to the present invention.

FIG. 5 is an explanatory view showing a usage state of the gypsum board crusher according to the present invention.

[Explanation of symbols]

 1 Box 2 Gypsum board 3 Slit 6 Pinch roller 8 Grinding tooth 9 Cutter roller 13 Biting groove

Claims (1)

[Claims] 1. A box (1) is formed with a slit (3) into which a gypsum board (2) can be inserted, and the gypsum board (2) is provided behind the slit (3) in the box (1). A pair of pinch rollers (6, 6) having a large number of bite grooves (13) orthogonal to the insertion direction are rotatably supported by urging the pair of pinch rollers (6, 6) in a mutually abutting direction, and further the pinch rollers (6, 6) On the rear side,
A pair of cutter rollers (9,
9) rotatably supported, the pinch rollers (6, 6) rotate inward at a low speed, and the cutter rollers (9, 9) rotate inward at a higher speed than the pinch rollers (6, 6). Then, the gypsum board (2) is transferred to the inside of the box (1) while being held by pinch rollers (6, 6), and the gypsum board (2) is crushed by the crushing teeth (8). Crusher.