Metal powder collecting and filtering device

By combining the design of the cylinder, outer shell, rotating shaft, support and servo motor, the problem of filter element clogging in the metal powder collection and filtration device is solved, realizing efficient filtration and uniform distribution of metal powder, and improving filtration efficiency.

CN224194277UActive Publication Date: 2026-05-05CHANGZHOU YILI ADDITIVE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU YILI ADDITIVE TECHNOLOGY CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing metal powder collection and filtration devices are prone to clogging of the filter element due to the large weight of the metal powder when using water washing filtration, which affects the flow of dust and impurities and the filtration efficiency.

Method used

The design incorporates a cylinder, outer shell, rotating shaft, first support, and second support, along with a transmission system consisting of a servo motor, first sprocket, and second sprocket, to achieve synchronous rotation of the outer shell and filter element. Centrifugal force is used to improve the flowability and uniform distribution of metal powder, and the design of the feed hopper and end caps enhances the convenience of raw material addition and the stability of the device.

Benefits of technology

It improves the flowability and uniformity of metal powder distribution, enhances filtration efficiency, and ensures the stability and filtration effect of the filter element.

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Abstract

The utility model relates to the technical field of metal powder filtering, in particular to a metal powder collecting and filtering device which comprises a barrel and a filtering assembly, a blow-off pipe is inserted into the bottom end of the barrel, the filtering assembly comprises a shell rotationally connected to the middle of the barrel, and a first support is fixedly arranged on the inner side wall, close to the bottom end of the shell, of the barrel. A second support is fixedly arranged on the side wall, close to the top end of the shell, of the cylinder. Compared with a traditional metal powder collecting and filtering device, the rotating stability of the shell is improved through cooperation of the shell, the rotating shaft, the first support and the second support, the installing stability of the filter element is improved through cooperation of the installing base and the filter element, and the filtering efficiency is improved through cooperation of the servo motor, the first chain wheel, the chain and the second chain wheel. And synchronous rotation of the shell and the second chain wheel can be achieved, so that a mixed solution of metal powder generates centrifugal force in the filter element, the mobility and distribution uniformity of the metal powder are improved, and the collecting and filtering efficiency of the metal powder is improved.
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Description

Technical Field

[0001] This utility model relates to the field of metal powder filtration technology, and in particular to a metal powder collection and filtration device. Background Technology

[0002] Metal powder refers to groups of metal particles smaller than 1 mm in size, possessing diverse properties and wide applications. With continuous technological advancements, the applications of metal powder in emerging fields are constantly expanding, such as additive manufacturing, new energy vehicles, and electronic information, driving the sustained growth of the metal powder market demand. For example, the rapid development of 3D printing technology has led to an increasing demand for metal powder. Through processes such as pressing and sintering, metal powder can be used to manufacture various mechanical parts, such as gears and camshafts in automobile engines, as well as cutting tools and molds in machine tools. During the production process, metal powder requires collection and filtration devices to remove dust and impurities.

[0003] Metal powder collection and filtration devices typically include cartridge-type filters and vibrating screen-type filters. Cartridge-type filters mainly consist of a housing and a filter element. The housing provides support and a seal, while the filter element is the key component, made by pressing metal powder through a mold and then sintering it at high temperature. When fluid containing metal powder passes through the filter element, the powder is trapped on the surface of the element, allowing the clean fluid to flow out.

[0004] Existing metal powder collection and filtration devices typically use water washing filtration. However, due to the large weight of metal powder, water washing filtration may clog the filter element, thus affecting the flow of dust and impurities and consequently impacting filtration efficiency. Utility Model Content

[0005] To overcome the problem that existing metal powder collection and filtration devices typically use water washing filtration, which can clog the filter element due to the large weight of metal powder, thus affecting the flow of dust and impurities and consequently the filtration efficiency.

[0006] The technical solution of this utility model is as follows: a metal powder collection and filtration device, comprising a cylinder and a filtration assembly. A drain pipe is inserted into the bottom end of the cylinder. The filtration assembly includes a shell rotatably connected to the middle of the cylinder. A first support is fixed on the inner side wall of the cylinder near the bottom end of the shell. A second support is fixed on the side wall of the cylinder near the top end of the shell. A second sprocket is fitted on the outer surface of the cylinder. A mounting seat is threaded to the top end of the second sprocket. A filter element is woven on the inner side wall of the mounting seat. A rotating shaft is fixed at the bottom end of the shell. A servo motor is fixed on the side wall of the cylinder. A first sprocket is fixed at the output end of the servo motor. Chains are meshed on the outer surfaces of both the first and second sprockets.

[0007] Furthermore, the outer shell is cylindrical, and several slots are evenly spaced on the side wall of the outer shell.

[0008] Furthermore, a first limiting groove is provided in the middle of the first bracket, and a bearing is installed in the middle of the first limiting groove for the shaft to be inserted, which improves the stability of the rotation of the bottom end of the outer shell.

[0009] Furthermore, a second limiting groove is provided in the middle of the second bracket. The internal dimensions of the second limiting groove are adapted to the external dimensions of the outer shell, which improves the stability of the rotation of the top of the outer shell.

[0010] Furthermore, the second sprocket and the chain are located on the same horizontal plane, and the bottom end of the second sprocket is rotatably connected to the surface of the second bracket, which improves the stability of the chain drive.

[0011] Furthermore, a connecting seat is fixed at the top of the second sprocket for threaded connection with the mounting seat, and the internal dimensions of the mounting seat are adapted to the external dimensions of the connecting seat.

[0012] Furthermore, the top of the cylinder is threaded with an end cap, and the middle of the second support is fitted with a feed hopper.

[0013] Furthermore, the feed hopper is funnel-shaped, with the bottom end of the feed hopper penetrating the end cover. The bottom end of the end cover is inserted into the middle of the mounting base. The external dimensions of the bottom end of the end cover are adapted to the internal dimensions of the mounting base, thereby improving the stability of the metal chalk conveying.

[0014] The beneficial effects of this utility model are:

[0015] Compared to traditional metal powder collection and filtration devices, this device improves the stability of the outer shell's rotation through the cooperation of the outer shell, rotating shaft, first bracket, and second bracket. It also improves the stability of the filter element's installation through the cooperation of the mounting base and filter element. Furthermore, the servo motor, first sprocket, chain, and second sprocket enable synchronous rotation of the outer shell and second sprocket, generating centrifugal force in the metal powder mixture within the filter element. This enhances the fluidity and uniformity of the metal powder's distribution, thereby increasing the metal powder collection and filtration efficiency. Secondly, the device incorporates end caps and a funnel-shaped feed hopper, the bottom of which is fitted to the internal dimensions of the mounting base, improving the convenience of raw material addition and the stability of the outer shell's rotation. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the metal powder collection and filtration device of this utility model.

[0017] Figure 2 The diagram shown is a schematic cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the filter assembly of this utility model.

[0019] Figure 4The diagram shown is a cross-sectional view of the cylindrical body of this utility model.

[0020] Figure 5 The diagram shown is a cross-sectional view of the outer shell of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Cylinder; 2. Drain pipe; 3. Servo motor; 4. First sprocket; 5. Chain; 6. End cap; 7. Feed hopper; 8. Filter assembly; 801. Outer shell; 802. Second sprocket; 803. Mounting base; 804. Rotating shaft; 805. Filter element; 806. Connecting base; 9. First bracket; 10. Second bracket; 11. First limiting groove; 12. Second limiting groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Among the currently discovered feasible technologies, the following are described:

[0024] I. Background and Needs

[0025] Metal powders are widely used in numerous industrial fields, including metal processing, powder metallurgy, and 3D printing. Through processes such as pressing and sintering, metal powders can be used to manufacture various mechanical parts, such as gears and camshafts in automobile engines, as well as cutting tools and molds in machine tools. During the production and processing of metal powders, to prevent impurities and dust particles from affecting their quality, the powders need to undergo water washing. Therefore, the development and use of efficient metal powder collection and filtration devices are essential.

[0026] II. Structural Design

[0027] Metal powder collection and filtration devices typically include cartridge-type filters. Cartridge-type filters mainly consist of a housing and a filter element. The housing primarily provides support and a seal, ensuring no leakage occurs during operation; it is usually made of carbon steel or stainless steel. The filter element is the core of the device, commonly made of stainless steel, titanium alloy, or other materials, possessing excellent corrosion resistance, high-temperature resistance, and mechanical strength. Different materials and precision filter elements can meet different filtration needs. When fluid containing metal powder passes through the filter element, the powder is trapped on the filter element surface, while the clean fluid flows out through the filter element.

[0028] III. Selection and Installation

[0029] Selection criteria

[0030] Filtration precision: Select a filtration device with appropriate precision based on the particle size of the metal powder and specific process requirements. For example, fine metal powders used in 3D printing require a high-precision filtration device.

[0031] Processing flow rate: Consider the flow rate of powder-containing fluids during the production process to ensure that the equipment can meet the actual production needs and avoid insufficient filtration capacity.

[0032] Material compatibility: Based on the chemical properties of the metal powder and the working environment, select device materials with good chemical compatibility to prevent corrosion.

[0033] IV. Installation Requirements

[0034] Basic installation: The device should be installed on a flat and solid foundation to ensure its stability and avoid vibration and displacement during operation.

[0035] Pipeline Connections: The connections between inlet and outlet pipelines should be secure and sealed to prevent leaks. During the connection process, attention should be paid to the pipeline's direction and slope to ensure smooth fluid flow.

[0036] Electrical connections: For devices with electrical control components, ensure that the electrical connections are correct, safe, and comply with relevant electrical specifications.

[0037] Example 1

[0038] Please refer to Figures 1-5 A metal powder collection and filtration device includes a cylindrical body 1 and a filter assembly 8. A drain pipe 2 is inserted into the bottom end of the cylindrical body 1. The filter assembly 8 includes a shell 801 rotatably connected to the middle of the cylindrical body 1. The shell 801 is cylindrical, and several equally spaced slots are formed on the side wall of the shell 801 to facilitate the flow of sewage and impurities. A first support 9 is welded to the inner side wall of the cylindrical body 1 near the bottom end of the shell 801, and a second support 10 is welded to the side wall of the cylindrical body 1 near the top end of the shell 801. A second sprocket 8 is fitted onto the outer surface of the cylindrical body 1. 02. The top of the second sprocket 802 is threadedly connected to a mounting base 803. The mounting base 803 is made of stainless steel and is in the shape of a ring to support and limit the movement. A filter element 805 is woven on the inner side wall of the mounting base 803. The filter element 805 is used to filter sewage impurities and collect metal powder. The bottom of the outer shell 801 is fixedly welded to a rotating shaft 804 to support and limit the movement. A servo motor 3 is fixedly bolted to the side wall of the cylinder 1. The output end of the servo motor 3 is fixedly connected to a first sprocket 4 through a coupling. Chains 5 are meshed on the outer surfaces of both the first sprocket 4 and the second sprocket 802.

[0039] The first bracket 9 has a first limiting groove 11 in the middle, and a bearing is installed in the middle of the first limiting groove 11 for the rotating shaft 804 to insert into, which improves the stability of the bottom rotation of the outer shell 801. The second bracket 10 has a second limiting groove 12 in the middle, and the internal dimensions of the second limiting groove 12 are adapted to the external dimensions of the outer shell 801, which improves the stability of the top rotation of the outer shell 801.

[0040] The second sprocket 802 and the chain 5 are located on the same horizontal plane. The bottom end of the second sprocket 802 is rotatably connected to the surface of the second bracket 10, which improves the stability of the chain 5 transmission. The top end of the second sprocket 802 is fixed with a connecting seat 806 for threaded connection of the mounting seat 803. The internal dimensions of the mounting seat 803 are adapted to the external dimensions of the connecting seat 806.

[0041] When using this metal powder collection and filtration device, the operator first connects an external power source, pours the metal powder washing solution to be filtered into the filter element 805 through the mounting base 803, and then starts the servo motor 3 to drive the first sprocket 4 to rotate. The first sprocket 4, chain 5, and second sprocket 802 cooperate to drive the outer shell 801 to rotate in the middle of the cylinder 1. The filter element 805 rotates synchronously with the outer shell 801, thereby generating centrifugal force in the metal powder mixture in the filter element 805, thereby improving the fluidity and uniformity of the metal powder distribution. The separated wastewater impurities pass through the holes and grooves on the surface of the filter element 805 and the outer shell 801 in sequence, enter the interior of the cylinder 1, and are then discharged through the drain pipe 2. The filtered metal powder is collected inside the filter element 805, thereby improving the metal powder collection and filtration efficiency.

[0042] Example 2

[0043] The top of the cylinder 1 is threaded with an end cap 6, and the middle of the second bracket 10 is inserted with a feed hopper 7. The feed hopper 7 is funnel-shaped, and the bottom end of the feed hopper 7 passes through the end cap 6. The bottom end of the end cap 6 is inserted into the middle of the mounting base 803. The external dimensions of the bottom end of the end cap 6 are adapted to the internal dimensions of the mounting base 803 to improve the stability of the metal chalk conveying.

[0044] When the mounting base 803 rotates with the outer casing 801, the operator can thread the end cap 6 onto the top of the cylinder 1 to prevent water from overflowing. The feed hopper 7 is inserted in the middle of the mounting base 803 in a funnel shape, which improves the convenience of inserting metal powder when the mounting base 803 rotates. At the same time, the bottom end of the feed hopper 7 is inserted into the middle of the mounting base 803 to support and limit the top of the outer casing 801, thereby improving the stability of the rotation of the outer casing 801.

[0045] Also considering that when a large amount of metal powder is collected inside the filter element 805, the operator can turn off the servo motor 3 to stop the device. The operator can then rotate the mounting base 803 clockwise to remove the end cover 6 and the feed hopper 7, thereby releasing the limit on the mounting base 803. The operator can then rotate the mounting base 803 counterclockwise to release the limit on the mounting base 803, making it easier to pull out the filter element 805 for replacement.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal powder collection and filtration device, characterized in that, The system includes a cylinder (1) and a filter assembly (8): a drain pipe (2) is inserted into the bottom end of the cylinder (1), the filter assembly (8) includes a housing (801) rotatably connected to the middle of the cylinder (1), a first bracket (9) is fixed on the inner wall of the cylinder (1) near the bottom end of the housing (801), a second bracket (10) is fixed on the side wall of the cylinder (1) near the top end of the housing (801), and a second sprocket (8) is fitted on the outer surface of the cylinder (1). 02), the top of the second sprocket (802) is threaded with a mounting base (803), the inner side wall of the mounting base (803) is woven with a filter element (805), the bottom end of the outer shell (801) is fixed with a rotating shaft (804), the side wall of the cylinder (1) is fixed with a servo motor (3), the output end of the servo motor (3) is fixed with a first sprocket (4), and the outer surfaces of the first sprocket (4) and the second sprocket (802) are both meshed with chains (5).

2. The metal powder collection and filtration device according to claim 1, characterized in that: The outer shell (801) is cylindrical, and several holes and slots are equally spaced on the side wall of the outer shell (801).

3. The metal powder collection and filtration device according to claim 1, characterized in that: The first bracket (9) has a first limiting groove (11) in the middle, and a bearing is installed in the middle of the first limiting groove (11) for the shaft (804) to be inserted.

4. The metal powder collection and filtration device according to claim 1, characterized in that: The second bracket (10) has a second limiting groove (12) in the middle, and the internal dimensions of the second limiting groove (12) are adapted to the external dimensions of the outer shell (801).

5. A metal powder collection and filtration device according to claim 1, characterized in that: The second sprocket (802) and the chain (5) are located on the same horizontal plane, and the bottom end of the second sprocket (802) is rotatably connected to the surface of the second bracket (10).

6. A metal powder collection and filtration device according to claim 5, characterized in that: The top of the second sprocket (802) is fixed with a connecting seat (806) for threaded connection with the mounting seat (803). The internal dimensions of the mounting seat (803) are adapted to the external dimensions of the connecting seat (806).

7. A metal powder collection and filtration device according to claim 1, characterized in that: The top of the cylinder (1) is threaded with an end cap (6), and the middle of the second bracket (10) is inserted with a feed hopper (7).

8. A metal powder collection and filtration device according to claim 7, characterized in that: The feed hopper (7) is funnel-shaped, and the bottom end of the feed hopper (7) passes through the end cover (6). The bottom end of the end cover (6) is inserted into the middle of the mounting base (803). The external dimensions of the bottom end of the end cover (6) are adapted to the internal dimensions of the mounting base (803).