JPH078491B2 - Gypsum kneading method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a kneading method for gypsum.

[Prior Art] When kneading gypsum, conventionally, kneading was performed by placing powdered gypsum and kneading water in a container and stirring with a stirrer.

[Problems to be Solved by the Invention]

However, in such a conventional kneading method, the degree of foaming has to be non-uniform because stirring is performed depending on the feeling of the operator.

An object of the present invention is to eliminate the above inconvenience.

[Means for Solving the Problems]

In order to achieve the above object, the kneading method of the gypsum of the present invention, the gypsum powder and kneading water are placed in a container and a stirring disk is arranged in the container, and the stirring disk is placed in the kneading water. It is submerged so as to be in a substantially horizontal state, raised while rotating in the circumferential direction, and the shaft of the stirring disc is inclined near the surface of the kneading water, so that part of the stirring disc is exposed from the surface of the mixing water. It is a thing.

Further, gypsum powder and kneading water are put in the container and a stirring disc is arranged in the container, and the stirring disc is immersed in the kneading water with its axis inclined and rotated in the circumferential direction. While raising the temperature, part of the stirring disk may be exposed from the surface of the kneading water.

Further, the stirring disk may be moved up and down with respect to the container by moving the container up and down.

The stirring disk may be made of a rubber material.

[Operation of the invention]

The kneading method of gypsum according to the present invention configured as described above, by operating the stirring disk, it is possible to mix the kneading water and the gypsum powder in the kneading water and the gypsum kneaded on the surface of the kneading water Can be foamed.

[Explanation of Examples]

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 3, 1 is a base plate, 11 and 11 are brackets fixed to the base plate 1, 2 and 2 are piston rods having both ends fixed to the brackets 11 and 11, and 21 is the piston rod 2 , 2 penetrating cylinder (the piston of the piston rod is inserted)
Is. The cylinder 21 advances and retreats along the piston rods 2, 2 by letting pressurized air into and out of a cylinder chamber (not shown). Reference numeral 12 denotes a slide board, which is fixed while being mounted on the cylinder 21. Therefore, the slide board 12 moves back and forth as the cylinder 21 moves back and forth. 13
Is a support plate, which is welded to the left end (in FIG. 1) of the slide plate 12. The support plate 13 projects vertically. Reference numeral 14 denotes a rib plate, which is installed between the slide plate 12 and the support plate 13. The rib plate 14 provides the verticality of the support plate 13. A linear motor 3 is fixed to the upper edge of the support plate 13 via a mounting plate 31. Reference numeral 32 is a conductor of the linear motor 3, which moves up and down when the motor 3 operates. Reference numeral 131 is a guide rail, which is vertically fixed to the support plate 13. A slide member 4 is fixed to the lower end of the conductor 32 of the linear motor 3 by a bolt 41.

The slide member 4 moves up and down along the guide rail 131 by the operation of the linear motor 3.

Reference numerals 42 and 42 denote support arms, which are fixed to both sides of the slide member 4 with bolts 421, 421, ...
The support arms 42, 42 project to the left (in FIG. 1) in a so-called cantilever state. Reference numeral 43 is an auxiliary cylinder, which is swingably installed about a pin 431 at a substantially intermediate portion between the support arms 42, 42. 432
Is a piston rod of the cylinder 43.

Reference numeral 44 denotes a rotary shaft, which is laid around the tip ends of the support arms 42, 42 in a penetrating state. The rotary shaft 44 is rotatable with respect to the support arms 42, 42. Reference numeral 45 denotes a spacer, which is fitted onto the rotary shaft 44 between the support arms 42, 42. The spacer 45 is connected to the rotary shaft 44 by a key 451. For this reason, spacer 4
5 rotates integrally with the rotary shaft 44. 452 is a protrusion,
It is integrally formed with the spacer 45. The tip of the piston gap 432 of the auxiliary cylinder 43 is connected to the protrusion 452 by a clevice 433. Therefore, as the piston rod 432 of the auxiliary cylinder 43 advances and retreats, the spacer 45
As a result, the rotary shaft 44 rotates. Reference numeral 453 is a stopper projecting from the spacer, and 422 is an abutment bolt screwed into the tip of the support arm 42 via a fixing plate 423. The stopper 453 and the abutment bolt 422 prevent the spacer 45, and thus the rotating shaft 44, from rotating to the right more than necessary. The rotation angle of the rotary shaft 44 can be adjusted by screwing the contact bolt 422 with respect to the fixed plate 423.

On the other hand, in the figure, 5 is a mounting plate, and 51 and 51 are mounting plates 5.
Is a leg plate integrally formed with the. Both ends of the rotary shaft 44 are bolted 511, 511 while penetrating the leg plates 51, 51 (see FIG. 2). Therefore, the leg plates 51, 51 and thus the mounting plate 5 swing as the piston rod 432 of the auxiliary cylinder 43 advances and retracts. Reference numeral 6 denotes a motor, which is fixed while being mounted on the mounting plate 5. This motor 6
Rotates the operating rod 7 about its axis. Reference numeral 71 denotes a stirring disk, which is fixed to the tip of the operating rod 7 by a bolt (not shown). This stirring disk 71 is positioned in a horizontal state. Since the stirring disk 71 is made of rubber and has elasticity, it is easily bent and easily stirred, and the corners are not easily worn. Moreover, unlike screw-type stirring tools, it is difficult to take in gas, and as a result,
Large bubbles are unlikely to form in the kneaded product.

Reference numeral 8 denotes a stirring container, which is held below the motor 6 by a support 81 so as to be rotatable at an appropriate height. The stirring container 8 is filled with powdered gypsum, kneading water, and a foaming agent. In addition, these powdered gypsum, water for kneading, and a foaming agent are mixed in an appropriate ratio. Reference numeral 82 denotes a discharge port formed at the lower end of the stirring container 8, and reference numeral 821 denotes a pinch valve installed at the discharge port 82 for controlling discharge of the kneaded gypsum. By the way, a disk for stirring of the operating rod 7
71 is submerged in the bottom of the stirring container 8. Then, it is rotated by the operation of the motor 6 to mix the gypsum powder (containing the foaming agent) and the kneading water.

Next, the operation of this embodiment will be described.

First, the stirring disk 71 is rotated by operating the motor 6 in the state shown in FIG. And this stirring disc
While rotating 71, the linear motor 3 is operated to raise the stirring disk 71 together with the motor 6 (see the state of B). Then, while the cylinder 21 is operated to move the auxiliary cylinder 43 to the right (in FIG. 1), the auxiliary cylinder 43 is operated to incline the motor 6 and thus the stirring disk 71 (see the state of C). ). In this state C, the upper half of the stirring disk 71 is exposed from the surface of the kneading water. Here, the stirring disk
The degree of exposure of 71 can be appropriately changed depending on the size of the disk 71.

In addition, in order to return the stirring disk 71 to the original state (state A),
The cylinder 21, the auxiliary cylinder 43, and the linear motor 3 may be operated in opposite directions.

In the above embodiment, the stirring disk 71 is raised and then tilted, but the vertical movement may be repeated while the stirring disk 71 is tilted.

Instead of moving the stirring disk 71 up and down, the stirring container 8 may be moved up and down. It should be noted that the stirring is 71
It is more likely that bubbles do not easily enter the kneaded product if it is carried out while raising.

〔The invention's effect〕

The gypsum kneading method of the present invention comprises placing a gypsum powder and kneading water in a container and arranging a stirring disc in the container, and submerging the stirring disc in the kneading water so as to be substantially horizontal. By rotating the stirring disk, the stirring disk is tilted in the vicinity of the surface of the kneading water and the stirring disk is partially exposed from the surface of the mixing water by operating the stirring disk. It is possible to mix the kneading water and the gypsum powder in the kneading water and foam the kneaded gypsum on the surface of the kneading water.

Therefore, by using this gypsum kneading method, unlike the conventional method, it is easy to obtain a kneading gypsum having a uniform degree of foaming.

If the stirring disk is made of a rubber material, the stirring disk will be appropriately curved, so that the stirring disk is easy to stir and the corners are not easily worn. Moreover, unlike a screw-shaped stirrer, it is difficult to take in gas, and as a result, it is difficult for large bubbles to form in the kneaded product.

[Brief description of drawings]

The drawings show an apparatus using the gypsum kneading method according to the present invention. FIG. 1 is a partial sectional front view, FIG. 2 is an enlarged sectional view taken along line II-II in FIG. 1, and FIG. It is an III-III line expanded sectional view in FIG. 71 …… Stirring disk 8 …… Stirring container (container)

Claims (6)

[Claims] 1. A container is filled with gypsum powder and kneading water, and a stirring disk is arranged in the container. The stirring disk is submerged in the kneading water so as to be in a substantially horizontal state,
A method for kneading gypsum, characterized in that the stirring disc is tilted in the vicinity of the surface of the kneading water while being rotated in the circumferential direction, and the stirring disc is tilted to expose a part of the stirring disc from the surface of the mixing water. 2. The method of kneading gypsum according to claim 1, wherein the stirring disk is moved up and down with respect to the container by moving the container up and down. 3. The gypsum kneading method according to claim 1 or 2, wherein the stirring disk is made of a rubber material. 4. A container is filled with gypsum powder and kneading water, and a stirring disc is arranged in the container. The stirring disc is immersed in the kneading water in an inclined state and rotated in the circumferential direction. A method for kneading gypsum, which is characterized in that it is raised while exposing a part of the stirring disk from the surface of the kneading water. 5. The method of kneading gypsum according to claim 4, wherein the stirring disk is moved up and down with respect to the container by moving the container up and down. 6. The gypsum kneading method according to claim 4 or 5, wherein the stirring disk is made of a rubber material.