CN111661657B - Automatic powder conveying system using vacuum conveyor - Google Patents

Automatic powder conveying system using vacuum conveyor Download PDF

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Publication number
CN111661657B
CN111661657B CN202010145712.8A CN202010145712A CN111661657B CN 111661657 B CN111661657 B CN 111661657B CN 202010145712 A CN202010145712 A CN 202010145712A CN 111661657 B CN111661657 B CN 111661657B
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Prior art keywords
powder
vacuum
unit
moving path
injection
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CN202010145712.8A
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CN111661657A (en
Inventor
李齐烈
梁至鈗
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SK On Co Ltd
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SK On Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/24Gas suction systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/66Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/06Gas pressure systems operating without fluidisation of the materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/40Feeding or discharging devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/40Feeding or discharging devices
    • B65G53/46Gates or sluices, e.g. rotary wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/52Adaptations of pipes or tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04Bulk
    • B65G2201/042Granular material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2812/00Indexing codes relating to the kind or type of conveyors
    • B65G2812/16Pneumatic conveyors
    • B65G2812/1608Pneumatic conveyors for bulk material
    • B65G2812/1616Common means for pneumatic conveyors
    • B65G2812/1625Feeding or discharging means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2812/00Indexing codes relating to the kind or type of conveyors
    • B65G2812/16Pneumatic conveyors
    • B65G2812/1608Pneumatic conveyors for bulk material
    • B65G2812/1691Pumping systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

The present invention relates to an automatic powder conveying system capable of minimizing metering errors, comprising: a powder injection part for injecting powder for producing a product; a powder storage unit that receives the powder from the powder injection unit and stores the received powder; a vacuum conveying part for conveying the powder injected into the powder injection part to the powder storage part in a vacuum suction manner; a powder moving path connecting the powder injecting part and the vacuum conveying part, thereby forming a path for conveying powder; and a vacuum breaking unit that regulates the pressure of the powder moving path, thereby restricting the conveyance of the powder that occurs through the powder moving path, and therefore, the conveyance can be performed more accurately.

Description

Automatic powder conveying system using vacuum conveyor
Technical Field
The present invention relates to an automatic powder conveying system, and more particularly, to an automatic powder conveying system capable of minimizing a metering error occurring in the process of conveying powder using a vacuum conveyor.
Background
The powder transporting device is a device for transporting powder from a fine powder state to a solid body having a diameter of several centimeters, and conventionally, devices used for transporting powder include a screw conveyor type, a rope conveyor type, a suction conveyor type, and the like, but for rapid and safe transport of powder raw materials, a powder raw material transporting device using a vacuum hopper has been developed.
Fig. 1 is a diagram showing a conventional powder raw material transporting apparatus using a vacuum hopper, the conventional powder raw material transporting apparatus including: a frame disposed at a predetermined height; a vacuum hopper 2 fixedly provided at an upper portion of the frame, an outer circumferential surface provided with a suction pipe and a first air discharge pipe to communicate with the inside, and a powder raw material discharge port formed at a lower portion thereof; a first electromagnetic valve 3 having one end provided at the suction pipe and the other end connected to the supply hose; a raw material supply hopper 7 provided at a position lower than the vacuum hopper to accommodate a powder raw material P to be conveyed; a supply hose having one end connected to the first electromagnetic valve and the other end close to the lower surface of the raw material supply hopper; a ball valve 4 provided at a powder raw material discharge port of the vacuum hopper to discharge raw materials contained in the vacuum hopper; a second electromagnetic valve, one end of which is arranged at the first air discharge pipe of the vacuum hopper; a second air outlet pipe, one end of which is connected with the second electromagnetic valve; a blower connected to the other end of the second air outlet duct to communicate with the vacuum hopper and to vacuum the inside of the vacuum hopper; a pressure sensor provided in the vacuum hopper to measure a vacuum state of the vacuum hopper; and a control part which receives the output of the pressure sensor, and which delivers the powder raw material contained in the raw material supply hopper to the upper vacuum hopper by controlling the blower and the first and second solenoid valves, and which discharges the powder raw material delivered to the vacuum hopper by controlling the ball valve.
However, the conventional powder raw material transporting apparatus using the conventional vacuum hopper adjusts the amount of powder raw material flowing into the vacuum hopper only by the solenoid valve, and thus has disadvantages in that a highly arranged vacuum pump is required and precise control of the solenoid valve is required. In addition, in the raw material supply hopper, the supply hose that supplies the powder raw material to the vacuum hopper is formed with a single diameter, and thus, when the powder raw material having a relatively large diameter is supplied, a problem of clogging of the supply hose may occur.
Prior art literature
( Patent document 1) issued patent nos. 10 to 0718912 (patent names: powder raw material conveying device using vacuum hopper, publication date: 2007.05.16 )
Disclosure of Invention
First, the technical problem to be solved
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an automatic powder conveying system using a novel vacuum conveyor, which can accurately convey powder without using a high-level vacuum pump.
Further, an object of the present invention is to provide an automatic powder feeding system that forms a separate powder feeding amount adjusting part at a powder injection part that supplies powder, and that can accurately feed powder without precise control of an electromagnetic valve by adjusting a vacuum state formed in a powder moving path.
Further, an object of the present invention is to provide an automatic powder conveying system including a plurality of branch pipes having different diameters to smoothly convey powder having various diameters.
(II) technical scheme
The automatic powder conveying system for achieving the above object of the present invention comprises: a powder injection unit 100 for injecting powder; a powder storage unit 200 for receiving the powder from the powder injection unit 100 and storing the received powder; a vacuum conveying part 300 for conveying the powder injected into the powder injecting part 100 to the powder storing part 200 by vacuum suction; a powder moving path 400 connecting the powder injecting part 100 and the vacuum transporting part 300 to form a path for transporting the powder; and a vacuum breaking unit 500 for regulating the pressure of the powder moving path 400, thereby restricting the conveyance of the powder generated through the powder moving path 400.
At this time, the present invention is characterized in that the vacuum breaking unit 500 is a vacuum breaking valve, which breaks the vacuum state of the powder moving path 400 by directly flowing external air into the powder moving path 400.
In addition, the present invention is characterized in that the vacuum breaking unit 500 injects a gas into the powder moving path 400, thereby breaking the vacuum state of the powder moving path 400.
In addition, the powder injection unit 100 of the present invention further includes a powder measuring unit 110 that measures at least one of a weight change of the powder injection unit 100 or an amount and a weight of powder supplied from the powder injection unit 100 to the powder movement path 400, and the vacuum breaking unit 500 is operated in conjunction with the powder measuring unit 110 when the weight change of the powder injection unit 100 measured by the powder measuring unit 110 or the amount of powder supplied from the injection unit 100 to the powder movement path 400 approaches or reaches a prescribed value.
The present invention is characterized by further comprising: a powder conveyance amount adjusting part 600 for adjusting the amount of powder supplied from the powder injecting part 100 to the powder moving path 400.
In addition, the present invention is characterized in that the powder feeding amount adjusting part 600 is coupled to the vacuum feeding part 300, and reduces or blocks the amount of the powder supplied from the powder injecting part 100 to the powder moving path 400 when the vacuum feeding part 300 is operated.
In addition, the present invention is characterized in that the powder conveyance amount adjusting unit 600 adjusts the amount of powder passing through by adjusting the cross-sectional area of the flow path through which the powder passes.
In addition, the present invention is characterized in that a plurality of powder injection parts 100 and powder movement paths 400 are provided according to the size of the powder used, and the powder storage part 200 further includes a powder injection branch pipe 210 connected to the plurality of powder injection parts 100 injecting the powder different from each other through the powder movement paths 400 different from each other.
In addition, the present invention is characterized in that the branch pipe 210 includes: an upper branch pipe 210A which is located at an upper side and is formed with a plurality of moving path coupling parts coupling the respective powder moving paths 400; lower branch pipe 210B is coupled to upper branch pipe 210A at an incline at the lower side of upper branch pipe 210A.
In addition, the present invention is characterized in that the plurality of powder moving paths 400 have different materials according to the specific gravity of the passing powder.
(III) beneficial effects
The automatic powder conveying system provided by the invention can immediately block the powder conveyed to the powder storage part at a designated time point by breaking the vacuum of the powder moving passage, so that the automatic powder conveying system has the advantage of being capable of more accurately regulating the quantity of the conveyed powder.
On the other hand, the present invention has an advantage that the sectional area of the flow path through which the powder fed from the powder injection part to the powder movement path passes can be adjusted, and therefore, the abrupt movement of the powder to the powder storage part under the initial vacuum pressure can be restricted.
Drawings
Fig. 1 is a diagram showing a conventional powder raw material transporting apparatus.
Fig. 2 is a front view showing an automatic powder conveying system according to a first embodiment of the present invention.
Fig. 3 is a schematic view showing that external air in the automatic powder conveying system according to the first embodiment of the present invention flows into the powder moving path through the vacuum breaking part.
Fig. 4 is a front view showing an automatic powder conveying system according to a second embodiment of the present invention.
Fig. 5 is a schematic view showing powder movement by the powder conveyance amount adjusting section of the powder automatic conveyance system according to the second embodiment of the present invention.
Fig. 6 is a front view showing an automatic powder feeding system according to a third embodiment of the present invention.
Description of the reference numerals
1000: the automatic powder conveying system 100 of the present invention: powder injection part
110: powder measuring unit 200: powder storage part
210: powder injection branch pipe 210A: upper branch pipe
210B: lower branch pipe 300: vacuum conveying part
400: powder movement path 500: vacuum breaking part
600: powder conveying amount adjusting part M: mixing part
Detailed Description
Advantages, features and methods of implementing embodiments of the present invention should be clearly understood with reference to the following detailed description of embodiments and the accompanying drawings. However, the present invention is not limited to the following embodiments, and may be implemented in various different forms, and this embodiment is provided only for the sake of completeness of the description of the present invention and to fully describe the scope of the present invention to those skilled in the art to which the present invention pertains, and the present invention is defined only by the scope of the claims. Throughout the specification, like reference numerals denote like constituent elements.
In describing the embodiments of the present invention, a detailed description thereof will be omitted when it is considered that a detailed description of common general knowledge or structure may unnecessarily obscure the gist of the present invention. Also, the following terms are defined in consideration of functions in the embodiments of the present invention, and may be different according to the intention of a user, or a convention, etc. Accordingly, the definition of terms should be determined based on the entire contents in the present specification.
Next, the powder automatic feeding system 1000 according to the present invention will be described with reference to the drawings.
Fig. 2 shows an automatic powder conveying system according to a first embodiment of the present invention, and referring to fig. 2, the automatic powder conveying system according to the first embodiment includes: a powder injection unit 100 for injecting powder; a powder storage unit 200 for receiving and storing the powder from the powder injection unit 100; the mixing part M receives and mixes the powder from the powder storage part 200, and is further formed with: a powder moving path 400 for conveying the powder from the powder injection part 100 to the powder storage part 200; a vacuum conveying part 300 for conveying the powder located in the powder injecting part 100 to the powder storing part 200; and a vacuum breaking part 500 formed in the powder moving path 400, wherein when the powder is transferred to the powder storage part 200 in a set amount, the vacuum breaking part 500 raises the pressure of the powder moving path 400, thereby restricting the powder flowing into the powder storage part 200 in more than a specified amount.
Fig. 3 is a schematic view for explaining in more detail that a gas is supplied to a powder moving path through a vacuum breaking part, in a powder automatic conveying system for conveying powder by a vacuum suction method, when a performance of a vacuum forming part of the vacuum conveying part 300 is poor, it is difficult to judge and block movement of the powder conveyed to the powder storing part 200 through the powder moving path 400 at a specific time point, in contrast, in the present invention, the vacuum breaking part 500 is formed in the powder moving path 400, and when an amount of the powder conveyed from the powder injecting part 100 to the powder storing part 200 reaches a specified amount, the vacuum breaking part 500 lifts a pressure of the powder moving path 400, so that conveyance of the powder passing through the powder moving path 400 can be blocked more rapidly and accurately.
On the other hand, the powder injection part 100 may further include a powder measuring part 110 that measures the weight of the powder transferred from the powder injection part 100 to the powder storage part 200, and the powder weight measuring method of the powder measuring part 110 may include a method of measuring the amount of the powder supplied from the injection part 100 to the powder moving path 400 by using a weight change of the powder injection part 100 according to the transfer of the powder and a method of converting the amount into a weight.
When the powder measuring unit 110 is linked with the vacuum breaking unit 500 and the weight of the powder measured by the powder measuring unit 110 approaches or reaches a predetermined arbitrary value, the vacuum breaking unit 500 may be operated to immediately block the powder fed through the powder moving path 400 from further flowing into the powder storage unit 200, and the vacuum breaking unit 500 may break the vacuum state of the powder moving path 400 by communicating the powder moving path 400 with the external atmosphere and allowing the external air to be sucked into the powder moving path 400, as shown in the schematic diagram of fig. 3, so that the vacuum of the powder moving path 400 is broken, or may be a method of injecting a gas from the vacuum breaking unit 500 into the powder moving path 400, as another example.
That is, after determining the type and amount of the necessary powder, the vacuum transporting unit 300 sets the specific space of the powder storing unit 200 connected to the powder moving path 400 to a vacuum state, and simultaneously, the powder stored in the powder injecting unit 100 is transported to the powder storing unit 200, the weight of the powder transported from the powder injecting unit 100 to the powder storing unit 200 is measured by the powder measuring unit 110, and when the weight of the powder measured by the powder measuring unit 110 is close to a specified value, the vacuum breaking unit 500 coupled to the powder moving path 400 causes the gas to flow into the powder moving path 400, thereby breaking the vacuum formed in the powder moving path 400, and stopping the transportation of the powder passing through the powder moving path 400.
Fig. 4 is a perspective view showing a powder automatic conveying system according to a second embodiment of the present invention, and fig. 5 is a schematic view showing powder movement occurring in a powder injection section provided with a powder conveying amount adjusting section.
Referring to fig. 4, the powder automatic conveying system of the present invention may further include: and a powder conveyance amount adjusting part 600 for adjusting the amount of powder supplied from the powder injecting part 100 to the powder moving path 400. In more detail, when the air in the powder storage part 200 or the specific space connected to the powder moving path 400 is discharged to the outside from the vacuum conveying part 300 to be in a vacuum state, a pressure difference between the powder injection part 100 and the powder storage part 200 is maximized, and a large amount of powder is instantaneously sucked into the powder storage part 200, so that the amount of powder delivered to the powder storage part 200 may exceed a designated value, and thus, the amount of powder discharged from the powder injection part 100 is regulated by the powder delivery amount regulating part 600 to solve the problem that a large amount of powder is instantaneously delivered to the powder storage part 200 under an initial vacuum pressure.
At this time, the powder transporting amount adjusting part 600 is linked with the vacuum transporting part 300, so that the operating time of the vacuum transporting part 300 can be regarded as a time point for reducing or blocking the amount of the powder supplied from the powder injecting part 100 to the powder transporting passage 400, and further, a pressure change at a position where the vacuum transporting part 300 becomes an initial vacuum state when the internal gas is discharged to the outside can be measured, and when the measured pressure and the pressure difference of the powder injecting part 100 are equal to or more than a specified value, the powder transporting amount adjusting part 600 can be operated, and as shown in fig. 5, the manner in which the powder transporting amount adjusting part 600 adjusts the amount of the powder discharged from the powder injecting part 100 can be a manner in which the cross-sectional area of the internal flow path 610 of the powder transporting amount adjusting part 600 is adjusted by the cross-sectional area adjusting part 620, so that the amount of the powder passing through the internal flow path 610 of the powder transporting amount adjusting part 600 is adjusted.
Fig. 6 is a perspective view showing a powder automatic feeding system according to a third embodiment of the present invention, referring to fig. 6, the powder automatic feeding system of the present invention includes a plurality of the powder injection parts 100 and a plurality of the powder moving paths 400 corresponding to the size and specific gravity of the powder, and the powder storage part 200 may be connected to each of the powder injection parts 100 through a separate powder moving path 400, respectively.
For example, the powder required for manufacturing the anode of the secondary battery is a heavier material having a specific gravity close to 2, whereas the powder required for manufacturing the cathode uses a material having a specific gravity less than 1, if the inner diameter of the tube for transporting the powder having a heavier characteristic of 2 or more is larger than a predetermined size, a problem may occur in that the powder cannot be transported, and the tube may collapse due to the vacuum pressure, and if the inner diameter of the tube for transporting the lighter powder having a specific gravity less than 1 is smaller than the predetermined size, a lot of time may be required for transporting the powder, and therefore, it is preferable to use the tube suitable for various powder characteristics to form the powder moving path 400.
That is, in order to transfer the powder having the different sizes and specific gravities from each other to the mixing part M through the powder storage part 200, the optimized powder moving path 400 suitable for the transfer of each powder is required, and in the present invention, in order to transfer the powder having the different properties from each other to the mixing part M through one powder storage part 200, the plurality of powder moving paths 400 connect the respective powder injection parts 100, thereby solving the problem of breakage of the powder moving path 400 and the problem of time delay required for the powder transfer, which may occur during the powder transfer.
At this time, the powder storage part 200 may include a powder injection branch pipe 210 formed with a moving path coupling part 211 coupling a plurality of the powder moving paths 400, and the powder injection branch pipe 210 includes: an upper branch pipe 210A located at an upper side and formed with the moving path coupling portion 211; the lower branch pipe 210B is positioned at the lower side of the upper branch pipe 210A, and one side in the longitudinal direction is coupled to the lower side of the upper branch pipe 210A so as to be inclined downward, and the other side in the longitudinal direction is coupled to the side surface of the powder storage body 220 of the powder storage unit 200 so as to be inclined. Specifically, the upper branch pipe 210A receives the powder supplied through each of the powder moving paths 400, and the powder supplied to the upper branch pipe 210A is naturally transferred to the powder storage body 220 through the lower branch pipe 210B formed obliquely from the upper side to the lower side.
Further, it is preferable to provide different materials of the powder movement path 400 according to the specific gravity of the powder, for example, when the powder for manufacturing the anode having a specific gravity close to 2 is transported, a PVC material of 50 to 100A is preferably used, and when the powder for manufacturing the cathode having a specific gravity less than 1 is transported, a polyurethane material of 75 to 100A is preferably used.
The present invention is not limited to the above-described embodiments, and various modifications may be made by those skilled in the art without departing from the gist of the present invention claimed in the claims.

Claims (9)

1. An automatic powder conveying system, comprising:
a powder injection unit (100) for injecting powder;
a powder storage unit (200) that receives the powder from the powder injection unit (100) and stores the received powder;
a vacuum conveying unit (300) that conveys the powder injected into the powder injection unit (100) to the powder storage unit (200) by vacuum suction;
a powder movement path (400) that connects the powder injection unit (100) and the vacuum transport unit (300) to form a path for transporting powder; and
a vacuum breaking unit 500 for regulating the pressure of the powder moving path 400 to limit the conveyance of the powder through the powder moving path 400,
a powder conveying amount adjusting part (600) is formed at the lower end of the powder injection part (100) and is used for adjusting the amount of the powder supplied from the powder injection part (100) to the powder moving path (400),
the vacuum breaking unit (500) is a vacuum breaking valve that causes external air to directly flow into the powder moving path (400) and breaks the vacuum state of the powder moving path (400).
2. The automatic powder conveying system according to claim 1, wherein,
the vacuum breaking unit (500) injects a gas into the powder movement path (400) to break the vacuum state of the powder movement path (400).
3. The automatic powder conveying system according to claim 2, wherein,
the powder injection part (100) further includes a powder measuring part (110) that measures at least one of a weight change of the powder injection part (100) and a weight of the powder supplied from the powder injection part (100) to the powder moving path (400),
the vacuum breaking unit (500) is linked to the powder measuring unit (110) and operates when the weight of the powder injection unit (100) measured by the powder measuring unit (110) changes or the amount of powder supplied from the injection unit (100) to the powder moving path (400) approaches or reaches a predetermined value.
4. The automatic powder conveying system according to claim 1, wherein,
the powder conveyance amount adjustment unit (600) prevents a large amount of powder from being instantaneously sucked into the powder storage unit (200) due to a pressure difference between the powder injection unit (100) and the powder storage unit (200) caused by a vacuum pressure generated by the vacuum conveyance unit (300).
5. The automatic powder conveying system according to claim 4, wherein,
the powder conveying amount adjusting part (600) is linked with the vacuum conveying part (300), and reduces or blocks the amount of powder supplied from the powder injection part (100) to the powder moving path (400) when the vacuum conveying part (300) is operated.
6. The automatic powder conveying system according to claim 5, wherein,
the powder conveyance amount adjustment unit (600) adjusts the amount of powder passing through by adjusting the cross-sectional area of a flow path through which the powder passes.
7. The automatic powder conveying system according to claim 1, wherein,
the powder injection part (100) and the powder moving path (400) are arranged in a plurality according to the size of the used powder,
the powder storage part (200) further includes a powder injection branch pipe (210) connected to the plurality of powder injection parts (100) into which the different powders are injected, respectively, through the different powder moving paths (400).
8. The automatic powder conveying system according to claim 7, wherein,
the powder injection branch pipe (210) includes:
an upper branch pipe (210A) which is positioned on the upper side and is formed with a plurality of movement path coupling parts for coupling the powder movement paths (400);
and a lower branch pipe (210B) connected to the upper branch pipe (210A) at an inclination to the lower side of the upper branch pipe (210A).
9. The automatic powder conveying system according to claim 8, wherein,
the powder moving passages (400) are made of different materials according to the specific gravity of the passing powder.
CN202010145712.8A 2019-03-06 2020-03-05 Automatic powder conveying system using vacuum conveyor Active CN111661657B (en)

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KR10-2019-0025788 2019-03-06
KR1020190025788A KR20200107146A (en) 2019-03-06 2019-03-06 Automatic Powder Transfer System Using Vacuum Conveyor

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KR102610699B1 (en) 2022-02-18 2023-12-06 에스케이온 주식회사 Vacuum type powder transfer system and method thereof
KR102546896B1 (en) * 2022-12-08 2023-06-26 주식회사 윤성에프앤씨 Apparatus for transporting powder of secondary battery and control method thereof

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