JPH04313338A - Continuous constant-quantity feeder for powder and granular body - Google Patents

Abstract

PURPOSE:To provide a continuous constant-quantity feeder of simple structure for a granular body, easy to handle and excellent in stabilized quantitative supply. CONSTITUTION:A granular body 2 in a container 5 is discharged on the surface of a turntable 4 from a lower opening 6 and placed in a groove 3. Only the granular body 2 in the groove 3 is moved to the suction port 8 of a granular body transport pipe 7 by the turntable 4, sucked up into the pipe 7 from the suction port 8 and transferred to another place. The granular body 2 is closely packed in the groove 3, rotated and mixed without being adversely affected by its weight and entirely discharged from the suction port 8, and hence the supply of the granular body is not varied.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously discharging and quantitatively supplying powder and granular material stored in a storage chamber/hopper.

0002

[Prior Art] Regarding a device that continuously supplies powder and granules in small quantities from a container containing a relatively large amount of powder and granules,
Various formats have been used in the past. However, in the conventional continuous quantitative feeding apparatus, the supply status of powder and granular materials tends to fluctuate, and the quantitative feeding performance is poor. That is, it is difficult to maintain a constant supply amount of powder and granular material, and the supply amount may fluctuate greatly or be interrupted over time. For this reason, in fields where highly accurate and stable continuous supply is required, conventional powder continuous supply devices are extremely inconvenient.

0003

[Problems to be Solved by the Invention] The problem to be solved by the present invention is to provide a continuous powder supply device that has a simple structure, is easy to use, has stable supply conditions, and has excellent quantitative supply performance. It's about doing.

0004

[Means for Solving the Problems] The gist of the present invention, which solves the above problems, is as follows: 1) A powder storage container is provided above a rotary plate having grooves on its surface for accommodating the powder and granules; The lower end opening of the body storage container is placed close to or in contact with the surface of the rotary disk near the same groove, and the suction port is sucked using the negative pressure of the air from the powder transport pipe provided above the rotary disk. are arranged close to the same groove on the surface of the rotary disk at a position different in phase from the forward lower end opening 2)
A powder storage container is provided above a rotary disk whose surface has a plurality of recesses for accommodating powder and granular materials arranged in a circular shape, and the lower end opening of the powder storage container is connected to the surface of the rotary disk near the recesses. The suction port, which sucks in with the negative pressure of the air from the powder transport pipe provided above the rotary disk, is placed close to or in contact with the rotary disk, and the suction port is placed on the surface of the rotary disk at a position different in phase from the front lower end opening. There is provided a continuous quantitative supply device for powder and granular material, characterized in that the device is disposed close to the concave portion of the powder and granular material.

[0005]

[Operation] In the powder and granular material continuous quantitative supply device of the present invention, the powder and granular material in the powder and granular material storage container is discharged from the lower end opening of the powder and granular material storage container toward the surface of the rotary disk. It is housed in the groove. Then, as the rotary disk rotates, only the powder and granules in the groove are moved to the position of the suction port of the powder transport pipe, and the powder and granules in the groove are sucked by negative air pressure from the suction port. is sucked up and transported to another location via the same powder transport pipe.

[0006] In the powder and granular material continuous quantitative supply device of the present invention, the lower end opening of the powder and granular material storage container is disposed close to or in contact with the surface of the rotary disk. The pressure caused by the weight of the powder and granules is blocked by the rotating disk. Then, only the powder and granules accommodated in the grooves on the surface of the rotary disk continuously rotate and move as the rotary disk rotates, and are sucked up from the suction port. That is, the granular material is filled into the groove without interruption, rotates and moves without being adversely affected by the pressure due to the weight of the granular material, and is completely discharged from the suction port. Therefore, the amount of powder or granular material supplied does not fluctuate or stop, and the quantitative supply performance is extremely good.

[0007] In the continuous quantitative supply device for powder and granular material of the present invention, a plurality of recesses are arranged in a circular shape instead of the grooves on the surface of the rotary disk. Powder is housed in the recess and rotated as the rotary disk rotates, and functions in the same way as the groove described above. The structure and operation of other parts are the same as the above-mentioned continuous quantity supply device for powder and granular material.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. 1 is a partially cutaway front view showing Embodiment 1, FIG. 2 is a partially cutaway plan view showing Embodiment 1, FIG. 3 is a partially cutaway perspective view of the rotary disk in Embodiment 1, and FIG. 4 is Embodiment 2. FIG. 5 is a partially cutaway perspective view of the rotary disk in the second embodiment.

In the continuous quantitative supply device 1 for powder and granular material according to the first embodiment, a powder storage container 5 is provided above the rotary disk 4 having grooves 3 on the surface for accommodating the powder and granular material. The lower end opening 6 of the container 5 is placed in contact with the surface of the rotary disk 4 near the groove 3. Further, the suction port 8 of the powder transport pipe 7 provided above the rotary disk 4 is arranged close to the groove 3 on the surface of the rotary disk 4 at a position different in phase from the lower end opening 6. Turntable 4
is rotated by a motor 9. Air is forced into the powder transport pipe 7 from below, and the jet nozzle 1
0 produces suction force at the suction port 8 due to negative pressure of air.

In the powder continuous quantitative supply device 1, the powder 2 in the powder storage container 5 is discharged from the lower end opening 6 toward the surface of the rotary disk 4, and is stored in the groove 3. and turntable 4
As the granules rotate, only the powder 2 accommodated in the groove 3 moves to the position of the suction port 8 of the powder transport pipe 7, and is sucked up from the suction port 8 into the powder transport pipe 7. be transported to a location.

In the powder continuous quantitative supply device 1, the lower end opening 6 is placed in contact with the surface of the rotary disk 4, so that the pressure due to the weight of the powder 2 in the powder storage container 5 is reduced. It is blocked by rotary disk 4. Then, only the granular material 2 accommodated in the groove 3 rotates and is sucked up through the suction port 8 which is sucked by negative pressure of air. That is, the granular material 2 is filled without interruption into the groove 3, rotates and moves without being adversely affected by the pressure due to the weight of the granular material 2, and is completely discharged from the suction port 8. Therefore, the amount of powder or granular material supplied does not fluctuate or stop, and the quantitative supply performance is extremely good. Furthermore, the structure is simple and easy to use. In addition, powder continuous quantitative supply device 1
Although the lower end opening 6 is disposed in contact with the surface of the rotary disk 4, the lower end opening 6 may be disposed close to the surface of the rotary disk 4.

In the continuous quantitative supply device 11 for powder and granular material according to the second embodiment, a powder storage container 14 is provided above a rotary disk 13 on which a plurality of recesses 12 for storing powder and granular material are arranged in a circular shape. The lower end opening 15 is placed in contact with the surface of the rotary disk 13 near the recess 12 . Furthermore, the suction port 17 of the powder transport pipe 16 provided above the rotary disk 13 is arranged close to the recess 12 on the surface of the rotary disk 13 at a position different in phase from the lower end opening 15. The lower end opening 15 can also be placed close to the surface near the recess 12.

In the continuous quantitative supply device 11 for powder and granular material according to the second embodiment, a plurality of recesses 12 are arranged in place of the grooves 3 on the surface of the rotary disk 4 according to the first embodiment. Powder 18 in the recess 12
is accommodated and rotated as the rotary disk 4 rotates, sucked up from the suction port 17, and transferred to another location via the powder transport pipe 16. The structure, function, etc. of other parts are the same as those of the powder continuous quantitative supply device 1 of the first embodiment.

[0014]

[Effects of the Invention] According to the present invention, it is possible to provide a device for continuously quantitatively feeding powder and granular material, which has a simple structure, is easy to use, has stable supply conditions, and is excellent in quantitatively feeding performance.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing a first embodiment.

FIG. 2 is a partially cutaway plan view showing Example 1. FIG.

FIG. 3 is a partially cutaway perspective view of the rotary disk in Example 1.

FIG. 4 is a partially cutaway front view showing Example 2. FIG.

FIG. 5 is a partially cutaway perspective view of the rotary disk in Example 2.

[Explanation of symbols]

1 Continuous quantitative supply device for powder and granular material 2 Powder material 3 groove 4 Turntable 5 Powder storage container 6 Lower end opening 7 Powder transport pipe 8 Inlet 9 Motor 10 Jet nozzle 11　Powder continuous quantitative feeding device 12 Recess 13 Turntable 14 Powder storage container 15 Lower end opening 16 Powder transport pipe 17 Inlet 18 Powder

Claims (2)

[Claims] Claim 1: A powder storage container is provided above a rotary disk having a groove on its surface for accommodating the powder, and the lower end opening of the powder storage container is connected to the surface of the rotary disk near the groove. The suction port, which sucks in with the negative pressure of the air from the powder transport pipe provided above the rotary disk, is placed close to or in contact with the rotary disk, and the suction port is placed on the surface of the rotary disk at a position different in phase from the front lower end opening. A continuous quantitative supply device for powder and granular material, characterized in that the device is disposed close to the same groove of the granular material. 2. A powder storage container is provided above a rotary disk whose surface has a plurality of recesses arranged in a circular shape for accommodating powder and granular materials, and the lower end opening of the powder storage container is connected to the rotary disk. The suction port, which is placed close to or in contact with the surface near the concave part and which sucks in with the negative pressure of the air from the powder transport pipe provided above the rotary plate, is located at a different phase from the front lower end opening. A continuous quantitative supply device for powder and granular material, characterized in that the apparatus is arranged close to the concave portion on the surface of the rotary disk.