JPH10265045A - Sucking transporter for powder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transport the total amount of powder in a container by sucking without using compressed air as well as troublesome operation, such as giving vibration to the container or sucking powder while moving the container or a sucking pipe. SOLUTION: This sucking transporter for powder, which sucks powder 10 from a container 12 for storing powder 10 and transports it to the outside of the container 12, is provided with a pipe 13 for sucking powder which extends to the inside of the container 12, passing through a lid 11 for sealing the container 12, and one or more pipes 14, 15 for generating vortex flow mounted so as to generate vortex flow in the container 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sucking and transporting powder from the inside of a container and transporting the powder to the outside.

[0002]

2. Description of the Related Art Conventionally, when powder is sucked from a container and transported to the outside, a powder suction pipe 3 is placed in a container 2 for storing the powder 1 as shown in FIG. 2. Description of the Related Art There is known an apparatus that sucks powder 1 while lowering the powder 1 from above an opening of the second powder. At this time, the outside air flows into the container 2 as shown by the arrow A. However, when a powder having poor fluidity is transported by suction as a powder, as shown in FIG.
Tends to adhere to the entire inner wall surface of the container 2 and remain in the container 2. When a powder having a large specific gravity is transported by suction as a powder, as shown in FIG. 5C, the powder 1 tends to adhere to the bottom corner of the container 2 and remain in the container 2. is there.

[0003]

Accordingly, when the powder has poor fluidity or a high specific gravity, the container 2 needs to be transported by suction to transport the entire amount of the powder 1 remaining in the container 2.
It is necessary to perform a troublesome operation of suctioning while applying vibration to the device, or performing suction while moving the container 2 or the suction pipe 3.

[0004] It is an object of the present invention to apply vibration to a container,
Alternatively, it is an object of the present invention to provide a powder suction and transport device that suctions and transports the entire amount of powder in a container with a simple configuration without performing a troublesome operation of sucking while moving a container or a suction pipe. Another object of the present invention is to provide a powder suction / transport device that suction-transports the entire amount of powder in a container without supplying compressed air.

[0005]

The invention according to claim 1 is
As shown in FIG. 1, in a powder suction transporting device for sucking powder 10 from a container 12 storing powder 10 and transporting the powder 10 to the outside of the container 12, the container 12 passes through a lid 11 that seals the container 12. Powder suction pipe 1 extending inside
3, extending through the lid 11 into the container 12,
And one or more vortex generating pipes 14 and 15 provided so as to generate a vortex therein.
When the vortex C is generated in the container 12 from the vortex generating pipes 14 and 15 when the powder 10 is sucked by the powder suction pipe 13 as shown in FIG. The body 10 is released from the inner wall of the container 12 on the vortex C, and the entire amount of the powder is sucked and transported out of the container by the pipe 13 as shown in FIG.

The invention according to claim 2 is the invention according to claim 1, wherein the eddy current generating pipes 14 and 15 are pipes for communicating the inside and the outside of the container 12, and the container 12 is connected to the lid 11. When the powder suction pipe 13 sucks the powder 10 in a sealed state, a powder suction transport device configured to introduce outside air into the container 12 from the vortex generation pipes 14 and 15 in response to the suction. It is. When the powder 10 in the container 12 is suctioned from the powder suction pipe 13,
Since the inside is decompressed, the vortex generating pipe 1 can be used without introducing gas such as compressed air from the pipes 14 and 15.
As shown by reference numeral B in FIG.
3 is introduced by an amount corresponding to the amount of suction, and a vortex C is generated in the container 12. As a result, the powder 10 in the container 12
And the whole amount is released from the inner wall of the container 12 and sucked and transported out of the container without remaining in the container.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the powder suction pipe 13 and the vortex generation pipes 14, 15 are fixed to the lid 11 as shown in FIG. An elevating device 16 for lowering or raising the lid 11 together with the pipes 13, 14, 15 is provided, and the elevating device 16 is configured to lower the lid 11 to the container 12 according to the amount of powder stored in the container 12. This is a powder suction and transport device.
When there is a large amount of the powder 10 in the container 12, the lifting device 16 raises the powder suction pipe 13 to the position shown in FIG. The powder 10 is transported by suction. As the storage amount of the powder 10 decreases, the pipe 1
When the powder 3 is lowered to such an extent that the powder 10 slightly remains at the bottom, the container 12 is covered with a lid 11 as shown in FIG. The powder 10 remaining on the bottom is transported by suction.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a powder suction / transport apparatus according to the present invention will be described with reference to FIGS. 1 and 2
As shown in FIG. 3, reference numeral 11 denotes a lid for sealing a container 12 for storing the powder 10, and a powder suction pipe 13 extending through the lid 11 and extending into the container 12 has a screw 11a.
It is fixed with. In addition, the lid 11 penetrates the
Nuts 14a, 15a such that a pair of vortex generating pipes 14, 15 extending inside the
It is fixed with. The pipes 13 to 15 are provided perpendicular to the surface of the lid 11 so as to extend in the vertical direction. As shown in FIG. 3, the tips of the vortex generating pipes 14 and 15 are inclined so that the air flow blown out of the pipes 14 and 15 becomes a vortex, preferably a swirling flow, and toward the bottom corner of the container 12. It is bent downward. In this embodiment, the eddy current generating pipes 14 and 15 are fixed to the lid 11 so that the lower ends thereof are higher than the lower end of the powder suction pipe 13, and the upper ends thereof are opened to communicate with the outside air. I have. A packing 11 b for sealing the container 12 is provided on the inner periphery of the lid 11.

[0009] As shown in FIG.
A lifting device 16 is attached to the upper part of the device. Lifting device 16
Is a lid 11 and a vortex generating pipe 14 fixed to the lid 11,
15 is lowered or raised together with the powder suction pipe 13. That is, the lifting / lowering device 16 holds the powder suction pipe 13 and moves up and down the horizontal arm 16a.
Having. One end of the horizontal arm 16a has a pipe holder 1
6b is provided, and the holder 16b is fixed to the pipe 13 by screws 16c. At the other end of the horizontal arm 16a, a female screw ring 16d is provided. This ring 16d is provided with a male screw 16e extending in the same vertical direction as the pipe 13.
To screw. Although not shown, a drive mechanism for rotating the male screw 16e forward or backward is provided at the tip of the male screw 16e.

[0010] The operation of the suction transport device thus configured will be described. The drive mechanism of the elevating device 16 is driven to rotate the male screw 16 e in the forward direction, and the lid 11 is lowered together with the pipes 13, 14, and 15 according to the amount of powder stored in the container 12, from the powder suction pipe 13. The powder 10 in the container 12 is sucked. At this time, the lower end of the powder suction pipe 13 is maintained at a position slightly higher than the upper surface of the powder 10 for efficient suction. The pipes 13, 14, 15 are lowered as the storage amount of the powder 10 is reduced by the suction. When the amount of the powder in the container 12 becomes small, the lid 11 is lowered to the position shown in FIG. Packing 1 1
The container 12 is in close contact with the container 12 via 1b, and the container 12 is sealed.
When the suction of the powder 10 by the powder suction pipe 13 is continued in this state, the pressure in the container 12 is reduced, and the vortex generation pipe 1
Outside air is introduced from the bent front end portions of the containers 4 and 15, and a vortex is generated in the container 12. As a result, the powder 1 in the container 12
Since the particles 0 are released from the inner wall of the container 12 by a vortex, the remaining powder is easily sucked from the pipe 13 and the entire amount is sucked and transported without remaining as shown in FIG. When powder is stored in the container 12 again, the male screw 16e of the elevating device 16 is reversed, the lid 11 is raised, and after the powder is stored, the above operation is repeated.

In this embodiment, a vortex flow generating pipe 1
The gas introduced from 4 and 15 is the same gas as the atmosphere in which the container 12 is arranged. When the container 12 is placed in the atmosphere, air is introduced from the pipes 14 and 15. Therefore, when sucking and transporting powder that easily reacts with air,
The atmosphere outside the container 12 is filled with an inert gas such as nitrogen or argon which does not easily react with the powder. In the above-described embodiment, the pipe for generating the vortex is used to communicate between the inside and the outside of the container. May be connected to an air pump whose blowing amount is adjusted. Further, in the above embodiment, a pair of eddy current generating pipes is shown, but one or three eddy current generating pipes may be used.

[0012]

Next, examples of the present invention will be described together with comparative examples. <Example 1> The following test was conducted using the powder suction transporting apparatus shown in Figs. First, the triiron tetroxide powder having a large angle of repose of about 60 degrees and poor fluidity was filled in the container 12, and was sucked through the pipe 13. When the lid 11 was closed when the residual amount of the triiron tetroxide powder became small, a vortex was generated from the eddy current generating pipes 14 and 15, and the entire iron tetroxide powder was suctioned and transported.

<Example 2> Instead of ferric oxide powder, copper powder having a bulk density of about 5 g / cc and a large specific gravity was placed in the container 12, and the copper powder was sucked in the same manner. .

<Comparative Example 1> The same triiron tetroxide powder as in Example 1 was placed in the container 2 shown in FIG. And remained in the container 2.

Comparative Example 2 The same copper powder as in Example 2 was used as shown in FIG.
As shown in (c), the container was put into the container 2 and sucked by the pipe 3. As a result, the copper powder adhered to the bottom corner of the container 2 and remained in the container 2.

[0016]

As described above, according to the powder suction / transport apparatus of the present invention, the powder suction pipe and the vortex generation pipe are passed through the lid for sealing the container for storing the powder. Each of them is provided to extend inside the container, and a vortex is generated in the container from the vortex generating pipe when the powder suction pipe is sucked, so that the container is vibrated or the container or the suction pipe is moved. The entire amount of powder in the container can be sucked and transported without performing the troublesome operation of sucking while sucking. In particular, if the vortex generating pipe is a pipe that communicates inside and outside the container, the vortex can be generated without supplying compressed air to the vortex generating pipe. In addition, if the lifting device is used, the lifting operation of the powder suction pipe can be performed easily and without any trouble.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view taken along the line DD of FIG. 2 of a powder suction transport device of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a cross-sectional view taken along the line EE of FIG. 2 of the powder suction transport device of the present invention.

FIG. 4 is a cross-sectional view including a lifting device for lowering or raising a pipe and a lid of the container.

FIG. 5 is a cross-sectional view of a conventional powder suction and transport device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Powder 11 Lid 12 Container 13 Pipe for powder suction 14, 15 Pipe for eddy current generation 16 Lifting device

Claims (3)

[Claims] 1. A powder suction and transport device for sucking the powder (10) from a container (12) storing the powder (10) and transporting the powder (10) to the outside of the container (12). ) Through the lid (11) to seal the container (12)
A powder suction pipe (13) extending to the inside of the container (12), and extending to the inside of the container (12) through the lid (11) so as to generate a vortex in the container (12). And a vortex flow generating pipe (14, 15). 2. A vortex generating pipe (14, 15) for communicating between the inside and the outside of a container (12), wherein said container (12) is sealed with a lid (11) to form a powder. 2. A structure according to claim 1, wherein when the suction pipe (13) sucks the powder (10), outside air is introduced into the container (12) from the vortex generation pipe (14, 15) in response to the suction. A powder suction transport device according to the above. 3. A powder suction pipe (13) and a vortex generating pipe (14, 15) are fixed to the lid (11), and the lid (11) is fixed together with the pipes (13, 14, 15). An elevating device (16) for lowering or ascending is provided, and the elevating device (16) is configured to lower the lid (11) to the container (12) according to the amount of powder stored in the container (12). 3. The powder suction and transport device according to claim 1, wherein