Metal welding powder processing and purifying device with magnetic filtering function

Abstract

This invention discloses a metal solder powder processing and purification device with magnetic filtration function, relating to the field of magnetic filtration purification technology. It includes a base, with a receiving mechanism at the rear of the base's top for collecting non-magnetic metal solder powder and magnetic metal impurities. Above the receiving mechanism is a magnetic filtration mechanism for separating the non-magnetic metal solder powder and magnetic metal impurities. Above the magnetic filtration mechanism is a feeding mechanism for conveying unscreened metal solder powder. A driving mechanism for rotating the magnetic filtration mechanism is located at the front end of the base. A column is fixedly installed at the front of the base's top, and three support plates for fixing the feeding mechanism, driving mechanism, and magnetic filtration mechanism are fixedly installed sequentially from top to bottom on one side of the column. This invention avoids internal blockage caused by the accumulation of magnetic metal impurities during the purification process of metal solder powder, thus facilitating the purification of the metal solder powder.

Description

Technical Field

[0001] This invention relates to the field of magnetic filtration purification technology, and in particular to a metal welding powder processing and purification device with magnetic filtration function. Background Technology

[0002] Magnetic filtration purification technology is a technique that uses magnetic force to separate and purify magnetic substances. Since metal welding powder can be divided into magnetic and non-magnetic types, when non-magnetic metal welding powder, such as copper welding powder, aluminum welding powder and titanium welding powder, contains magnetic metal impurities, it can be filtered and purified using a purification device for processing magnetic metal welding powder to obtain high-purity non-magnetic metal welding powder. Patent document CN218636809U discloses "a magnetic filter element for removing metal impurities, comprising an outer frame, an upper cover, a screw, a lower end cover, and an inner frame. The outer frame is disposed between the upper and lower end covers. The upper end of the screw passes through the lower end cover and connects to the upper end cover. A magnet adsorption mechanism is disposed on the screw, with the magnet adsorption mechanisms arranged vertically. The inner frame is disposed between the magnet adsorption mechanisms. The magnet adsorption mechanism includes a screw sleeve, a bushing, and a magnet. The screw sleeve is threadedly connected to the screw. The magnet is mounted on the bushing. A magnet washer is disposed between the magnet and the bushing." Supporting ribs are provided between the bushings, and the supporting ribs are evenly distributed around the center of the screw. The overall structure design of this utility model is novel. The inner skeleton and the magnetic adsorption mechanism are designed as separate structures, which are easy to assemble, have a stable installation structure, and the spacing between the magnetic adsorption mechanisms can be adjusted and are firmly fixed. Although it has the effects of "easy assembly, stable installation structure, adjustable spacing between the magnetic adsorption mechanisms and firm fixing", during the magnetic filtration and screening process, the adsorbed magnetic metal impurities cannot be desorbed on their own. As the magnetic metal impurities accumulate, the inside of the device is prone to blockage. Summary of the Invention

[0003] The main objective of this invention is to provide a metal welding powder processing and purification device with magnetic filtration function, which can effectively solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A metal welding powder processing and purification device with magnetic filtration function includes a base. A receiving mechanism for collecting non-magnetic metal welding powder and magnetic metal impurities is provided at the rear of the top of the base. A magnetic filtration mechanism for separating non-magnetic metal welding powder and magnetic metal impurities is provided at the top of the receiving mechanism. A feeding mechanism for conveying unscreened metal welding powder is provided above the magnetic filtration mechanism. A driving mechanism for driving the magnetic filtration mechanism to rotate is provided at the front end of the magnetic filtration mechanism. A column is fixedly installed at the front of the top of the base. Three support plates for fixing the feeding mechanism, the driving mechanism and the magnetic filtration mechanism are fixedly installed from top to bottom on one side of the column. The magnetic filtration mechanism includes an outer filter sleeve, an electromagnet for secondary adsorption of magnetic metal impurities is fixedly installed on the inner wall of the outer filter sleeve, an inner filter sleeve is set inside the outer filter sleeve, a rubidium magnetic plate for initial adsorption of magnetic metal impurities is set through the top of the inner filter sleeve, a bearing is fixedly installed on the outer ring of the inner filter sleeve near the top, an inner screening screen for screening the particle size of metal welding powder is fixedly installed inside the inner filter sleeve, a superconducting magnetic plate is fixedly installed on the outer ring of the inner filter sleeve below the bearing, several through slots are opened through the side wall of the inner filter sleeve, a bottom end cap is threadedly connected through the bottom of the inner screening screen, a scraper for scraping off magnetic metal impurities adhering to the inner wall of the inner filter sleeve is set between the inner filter sleeve and the inner screening screen, several opening and closing mechanisms are set between the electromagnet and the inner filter sleeve, and the magnetism of the electromagnet is greater than that of the rubidium magnetic plate.

[0005] Specifically, it facilitates the dispersion of metal solder powder, avoids insufficient magnetic filtration and sieving caused by the accumulation of metal solder powder, prevents blockage caused by the large accumulation of magnetic metal impurities, makes it easier to filter and sieve the particle size of metal solder powder, and facilitates the filtration and separation of non-magnetic metal solder powder and magnetic metal impurities in the metal solder powder, which is beneficial for purifying the metal solder powder.

[0006] As a further embodiment of the present invention, the feeding mechanism includes a feeding pipe and a DC motor fixedly installed on the top of the support plate. A feeding auger for conveying metal welding powder is movably installed inside the feeding pipe, and the shaft of the feeding auger is fixedly connected to the output shaft of the DC motor. A feeding hopper for feeding is fixedly installed at the front end of the top of the feeding pipe.

[0007] Specifically, it facilitates the conveying and feeding of unfiltered metal welding powder.

[0008] As a further embodiment of the present invention, a slot is provided at the rear of the top surface of the base. The receiving mechanism includes an outer receiving tank for collecting magnetic metal impurities. An inner receiving tank for collecting non-magnetic metal welding powder is centrally connected inside the outer receiving tank. A locking block for limiting the outer receiving tank is fixedly installed at the bottom of the outer receiving tank, and the locking block is engaged with the slot.

[0009] Specifically, it facilitates the classification and collection of non-magnetic metal solder powder and magnetic metal impurities, and is beneficial for the separation of non-magnetic metal solder powder and magnetic metal impurities.

[0010] As a further embodiment of the present invention, the driving mechanism includes a servo motor fixedly connected to the support plate, a gear fixedly mounted on the top of the output shaft of the servo motor, a gear ring meshing with the gear, and the gear ring being fixedly connected to the inner filter sleeve.

[0011] Specifically, it facilitates the rotation of the inner filter sleeve in different directions, thereby driving the opening and closing mechanism.

[0012] As a further embodiment of the present invention, the number of opening and closing mechanisms is the same as the number of superconducting magnetic plates. The opening and closing mechanism includes a superconducting magnetic plate that is slidably connected to the superconducting magnetic plate, a movable plate that is rotatably connected to the outer side of the superconducting magnetic plate, and torsion springs that are fixedly installed at the connection points between the upper and lower shafts of the movable plate and the superconducting magnetic plate. A trigger plate that is fixedly connected to an electromagnet and is at the same height as the movable plate is used to trigger the operation of the movable plate.

[0013] Specifically, this prevents non-magnetic metal welding powder from being thrown into the space between the inner and outer filter sleeves, causing a mixture of non-magnetic metal welding powder and magnetic metal impurities.

[0014] As a further embodiment of the present invention, the end of the feeding pipe is located directly above the inner screening cylinder, and the outer diameter of the feeding pipe is smaller than the inner diameter of the inner screening cylinder.

[0015] As a further embodiment of the present invention, the inner diameter of the outer receiving tank is greater than the inner diameter of the outer filter sleeve, the inner diameter of the inner receiving tank is greater than the inner diameter of the inner filter sleeve, and the outer diameter of the inner receiving tank is equal to the outer diameter of the inner filter sleeve.

[0016] As a further embodiment of the present invention, the height of the hollowed-out portion of the inner screening cylinder is less than the height of the through groove, the bottom of the through groove is inclined downwards, the inner filter sleeve is movably connected to the support plate located at the top through a bearing, the outer filter sleeve is fixedly connected to the support plate located at the bottom, and the inner filter sleeve is fitted inside the outer filter sleeve.

[0017] Specifically, this prevents non-magnetic metal solder powder from remaining in the channel.

[0018] Compared with the prior art, the present invention has the following beneficial effects: By setting a driving mechanism to drive the inner filter sleeve to rotate, centrifugal force can be used to disperse the metal welding powder, avoiding insufficient magnetic filtration and sieving caused by the accumulation of metal welding powder during the purification process. The sieving of the metal welding powder by the inner sieving screen facilitates the differentiation of particle size of the metal welding powder. At the same time, the opening and closing mechanism is set up in conjunction with the driving mechanism and the magnetic filtration mechanism. The driving mechanism drives the inner filter sleeve to rotate in both directions, thereby controlling the opening and closing of the opening and closing mechanism, and thus controlling the flow of the channel. With the help of the rubidium magnetic plate and electromagnet, it is beneficial to separate magnetic metal welding powder and non-magnetic metal impurities in the metal welding powder. The scraper pushes the magnetic metal impurities adsorbed on the inner filter sleeve, and then the electromagnet sucks them out. This can avoid the blockage inside the device caused by the accumulation of magnetic metal impurities during the purification process of metal welding powder, which is beneficial to the purification of metal welding powder. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 2 This is a side view of the overall structure of a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 3 This is a schematic diagram of the magnetic filtration mechanism and the drive mechanism in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 4 This is a schematic diagram of the internal structure of the magnetic filtration mechanism in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 5 This is a bottom view of a partial structure of the magnetic filtration mechanism in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 6 This is a top sectional view of a partial structure of the magnetic filtration mechanism in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 7 This is a cross-sectional view of the inner filter sleeve in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 8 This is a schematic diagram of the opening and closing mechanism in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 9 This invention relates to a metal welding powder processing and purification device with magnetic filtration function. Figure 8 Enlarged view of area A in the image; Figure 10 This is a cross-sectional view of the outer filter sleeve in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 11This is a schematic diagram of the feeding mechanism in a metal welding powder processing and purification device with magnetic filtration function according to the present invention. Figure 12 This is a schematic diagram of the material receiving mechanism in a metal welding powder processing and purification device with magnetic filtration function according to the present invention.

[0020] In the diagram: 1. Base; 2. Column; 3. Slot; 4. Feeding mechanism; 401. Feeding pipe; 402. Hopper; 403. DC motor; 404. Feeding auger; 5. Receiving mechanism; 501. Outer receiving tank; 502. Inner receiving tank; 503. Locking block; 6. Support plate; 7. Magnetic filtration mechanism; 701. Outer filter sleeve; 702. Inner filter sleeve; 703. Bearing; 704. Rubidium magnetic plate; 705. Inner screening screen cylinder; 706. Superconducting magnetic plate; 707. Through slot; 708. Bottom end cap; 709. Scraper; 710. Electromagnet; 8. Drive mechanism; 801. Servo motor; 802. Gear; 803. Gear ring; 9. Opening and closing mechanism; 901. Superconducting magnetic opening and closing plate; 902. Movable plate; 903. Torsion spring; 904. Trigger plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-12 As shown, a metal welding powder processing and purification device with magnetic filtration function is presented. Please refer to it carefully. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The system includes a base 1, a receiving mechanism 5 for collecting non-magnetic metal welding powder and magnetic metal impurities is provided at the rear of the top of the base 1, a magnetic filtering mechanism 7 for separating non-magnetic metal welding powder and magnetic metal impurities is provided at the top of the receiving mechanism 5, a feeding mechanism 4 for conveying unscreened metal welding powder is provided above the magnetic filtering mechanism 7, a driving mechanism 8 for driving the magnetic filtering mechanism 7 to rotate is provided at the front of the magnetic filtering mechanism 7, a column 2 is fixedly installed at the front of the top of the base 1, and three support plates 6 for fixing the feeding mechanism 4, the driving mechanism 8 and the magnetic filtering mechanism 7 are fixedly installed from top to bottom on one side of the column 2. The magnetic filtration mechanism 7 includes an outer filter sleeve 701. An electromagnet 710 for secondary adsorption of magnetic metal impurities is fixedly installed on the inner wall of the outer filter sleeve 701. An inner filter sleeve 702 is disposed inside the outer filter sleeve 701. A rubidium magnetic plate 704 for initial adsorption of magnetic metal impurities is disposed through the top of the inner filter sleeve 702. A bearing 703 is fixedly installed on the outer ring of the inner filter sleeve 702 near its top. An inner screening screen 705 for screening the particle size of metal welding powder is fixedly installed inside the inner filter sleeve 702. A superconducting magnetic plate 706 is fixedly installed on the outer ring of the inner filter sleeve 702 and below the bearing 703. Several through slots 707 are opened through the side wall of the inner filter sleeve 702. A bottom end cap 708 is threaded through the bottom of the inner screening cylinder 705. A scraper 709 for scraping off magnetic metal impurities attached to the inner wall of the inner filter sleeve 702 is provided between the inner filter sleeve 702 and the inner screening cylinder 705. Several opening and closing mechanisms 9 are provided between the electromagnet 710 and the inner filter sleeve 702. The magnetism of the electromagnet 710 is greater than that of the rubidium magnetic plate 704.

[0023] Specifically, during the filtration and sieving of the metal welding powder, the unfiltered metal welding powder is poured into the feeding mechanism 4, which then transports it to the inner filter sleeve 702 of the magnetic filter mechanism 7. Simultaneously, the drive mechanism 8 is activated, causing the inner filter sleeve 702 to rotate clockwise. During rotation, the opening and closing mechanism 9 closes to block the through-slot 707. Under centrifugal force, the unfiltered metal welding powder is filtered by the inner screening screen 705. Metal welding powder meeting the particle size requirements passes through the inner screening screen 705 and is thrown into the inner screening screen 705 and... In the space between the inner filter sleeves 702, large metal particles that do not meet the particle size requirements are intercepted and retained in the inner screening cylinder 705, which is beneficial to the dispersion of metal welding powder and can avoid insufficient magnetic filtration due to the accumulation of metal welding powder. At the same time, in the metal welding powder between the inner screening cylinder 705 and the inner filter sleeve 702, magnetic metal impurities are adsorbed by the rubidium magnetic plate 704 and adhere to the inner wall of the inner filter sleeve 702, while non-magnetic metal welding powder falls into the middle position of the receiving mechanism 5. Then, the feeding mechanism 4 stops feeding, and the driving mechanism 8 drives the inner filter. When sleeve 702 rotates counterclockwise, opening mechanism 9 opens, connecting the inner and outer areas of inner filter sleeve 702 via through groove 707. During the rotation of inner filter sleeve 702, scraper 709 pushes magnetic metal impurities adhering to the inner wall of inner filter sleeve 702 towards the through groove 707, preventing excessive accumulation and blockage. Simultaneously, electromagnet 710 is activated to attract magnetic metal impurities, while superconducting magnetic plate 706 reduces the attraction of the outer wall of inner filter sleeve 702 to these impurities. When drive mechanism 8 drives again... When the inner filter sleeve 702 rotates clockwise, the opening and closing mechanism 9 closes again to seal the through groove 707. At the same time, the electromagnet 710 is de-energized and loses its magnetism. The adsorbed magnetic metal impurities fall into the outer ring of the receiving mechanism 5, which facilitates the filtration and screening of the metal welding powder particle size. It also facilitates the filtration and separation of non-magnetic metal welding powder and magnetic metal impurities in the metal welding powder, which is beneficial to the purification of the metal welding powder. After the filtration and screening are completed, the receiving mechanism 5 is removed, and then the bottom end cap 708 is removed to facilitate the release of large-diameter metal particles that do not meet the requirements that remain in the inner screening screen cylinder 705.

[0024] Please refer to this carefully. Figure 1 , Figure 2 and Figure 11 The feeding mechanism 4 includes a feeding pipe 401 and a DC motor 403 fixedly installed on the top of the support plate 6. A feeding auger 404 for conveying metal welding powder is movably installed inside the feeding pipe 401, and the shaft of the feeding auger 404 is fixedly connected to the output shaft of the DC motor 403. A feeding hopper 402 for feeding is fixedly installed at the front end of the top of the feeding pipe 401.

[0025] Specifically, when filtering and screening the metal welding powder, the unfiltered metal welding powder is poured into the feeding hopper 402. After starting the DC motor 403, the feeding auger 404 is driven to rotate, and the unfiltered metal welding powder is transported to the end of the feeding pipe 401, so that it falls into the inner screening cylinder 705, which facilitates the feeding of the unfiltered metal welding powder.

[0026] Please refer to this carefully. Figure 1 , Figure 2 and Figure 12 A slot 3 is provided on the rear of the top surface of the base 1. The receiving mechanism 5 includes an outer receiving tank 501 for collecting magnetic metal impurities. An inner receiving tank 502 for collecting non-magnetic metal welding powder is centrally connected inside the outer receiving tank 501. A locking block 503 for limiting the outer receiving tank 501 is fixedly installed at the bottom of the outer receiving tank 501, and the locking block 503 is engaged with the slot 3.

[0027] Specifically, after the card block 503 is inserted into the card slot 3, it is convenient to limit the outer receiving tank 501 and make it easy for the outer receiving tank 501 to align with the outer filter sleeve 701. During material collection, non-magnetic metal welding powder is collected in the inner receiving tank 502, while magnetic metal impurities are collected in the space between the outer receiving tank 501 and the inner receiving tank 502. This facilitates the classification and collection of non-magnetic metal welding powder and magnetic metal impurities, and is beneficial to the separation of non-magnetic metal welding powder and magnetic metal impurities.

[0028] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The drive mechanism 8 includes a servo motor 801 fixedly connected to the bracket plate 6. A gear 802 is fixedly installed at the top of the output shaft of the servo motor 801. A gear ring 803 meshes with the gear 802 and is fixedly connected to the inner filter sleeve 702.

[0029] Specifically, when the servo motor 801 starts rotating forward, it drives the gear 802 to rotate clockwise, which in turn drives the inner filter sleeve 702 to rotate counterclockwise in conjunction with the gear ring 803. When the servo motor 801 starts rotating in reverse, it drives the gear 802 to rotate counterclockwise, which in turn drives the inner filter sleeve 702 to rotate clockwise in conjunction with the gear ring 803. This facilitates the rotation of the inner filter sleeve 702 in different directions, thereby driving the opening and closing mechanism 9.

[0030] Please refer to the diagram carefully. Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10The number of opening and closing mechanisms 9 is the same as the number of superconducting magnetic plates 706. The opening and closing mechanism 9 includes a superconducting magnetic plate 901 that is slidably connected to the superconducting magnetic plate 706, a movable plate 902 that is rotatably connected to the outer side of the superconducting magnetic plate 901, and torsion springs 903 that are fixedly installed at the connection between the outer side of the upper and lower shafts of the movable plate 902 and the connection point of the superconducting magnetic plate 901. A trigger plate 904 that is fixedly connected to the electromagnet 710 and is at the same height as the movable plate 902 is used to trigger the operation of the movable plate 902.

[0031] Specifically, when the inner filter sleeve 702 rotates clockwise, the superconducting magnetic opening and closing plate 901 rotates synchronously clockwise. When the movable plate 902 contacts the trigger plate 904, it is blocked by the trigger plate 904. The movable plate 902 drives the superconducting magnetic opening and closing plate 901 to slide and close, sealing the through groove 707. When the inner filter sleeve 702 rotates counterclockwise, the superconducting magnetic opening and closing plate 901 rotates synchronously counterclockwise. When the movable plate 902 contacts the trigger plate 904, it is blocked by the trigger plate 904. The movable plate 902 drives the superconducting magnetic opening and closing plate 901 to slide and open, releasing the blockage of the through groove 707. This facilitates the control of the flow of the through groove 707 through the opening and closing mechanism 9, preventing non-magnetic metal welding powder from being thrown into the space between the inner filter sleeve 702 and the outer filter sleeve 701, causing non-magnetic metal welding powder and magnetic metal impurities to mix.

[0032] Please refer to this carefully. Figure 1 The end of the feeding pipe 401 is located directly above the inner screening cylinder 705, and the outer diameter of the feeding pipe 401 is smaller than the inner diameter of the inner screening cylinder 705.

[0033] The inner diameter of the outer receiving tank 501 is larger than the inner diameter of the outer filter sleeve 701, the inner diameter of the inner receiving tank 502 is larger than the inner diameter of the inner filter sleeve 702, and the outer diameter of the inner receiving tank 502 is equal to the outer diameter of the inner filter sleeve 702.

[0034] Please refer to this carefully. Figure 1 , Figure 2 and Figure 7 The height of the hollow part of the inner screening cylinder 705 is less than the height of the through groove 707. The bottom of the through groove 707 is inclined downward. The inner filter sleeve 702 is movably connected to the support plate 6 located at the top through the bearing 703. The outer filter sleeve 701 is fixedly connected to the support plate 6 located at the bottom, and the inner filter sleeve 702 is sleeved inside the outer filter sleeve 701.

[0035] Specifically, under the action of centrifugal force, when the metal welding powder that meets the particle size requirements is thrown into the space between the inner filter sleeve 702 and the inner screening screen cylinder 705, the magnetic metal impurities are adsorbed on the inner filter sleeve 702, while the non-magnetic metal welding powder thrown into the through groove 707 is blocked by the superconducting magnetic opening and closing plate 901 and falls downwards, and slides down the inclined surface at the bottom of the through groove 707 into the inner receiving tank 502, so as to avoid the non-magnetic metal welding powder remaining in the through groove 707.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A metal welding powder processing and purification device with magnetic filtration function, characterized in that: The base (1) includes a base (1), a receiving mechanism (5) for collecting non-magnetic metal welding powder and magnetic metal impurities is provided at the rear of the top of the base (1), a magnetic filter mechanism (7) for separating non-magnetic metal welding powder and magnetic metal impurities is provided at the top of the receiving mechanism (5), a feeding mechanism (4) for conveying unscreened metal welding powder is provided above the magnetic filter mechanism (7), a driving mechanism (8) for driving the magnetic filter mechanism (7) to rotate is provided at the front end of the magnetic filter mechanism (7), a column (2) is fixedly installed at the front of the top of the base (1), and three support plates (6) for fixing the feeding mechanism (4), the driving mechanism (8) and the magnetic filter mechanism (7) are fixedly installed from top to bottom on one side of the column (2).

2. The metal welding powder processing and purification device with magnetic filtration function according to claim 1, characterized in that: The magnetic filtration mechanism (7) includes an outer filter sleeve (701), an electromagnet (710) for secondary adsorption of magnetic metal impurities is fixedly installed on the inner wall of the outer filter sleeve (701), an inner filter sleeve (702) is provided inside the outer filter sleeve (701), a rubidium magnetic plate (704) for primary adsorption of magnetic metal impurities is provided through the top of the inner filter sleeve (702), a bearing (703) is fixedly installed on the outer ring of the inner filter sleeve (702) near the top, and an inner screening screen cylinder (705) for screening the particle size of metal welding powder is fixedly installed inside the inner filter sleeve (702). A superconducting magnetic plate (706) is fixedly installed on the outer ring below the bearing (703). Several through slots (707) are opened through the side wall of the inner filter sleeve (702). A bottom end cap (708) is threaded through the bottom of the inner screening cylinder (705). A scraper (709) for scraping off magnetic metal impurities attached to the inner wall of the inner filter sleeve (702) is provided between the inner filter sleeve (702) and the inner screening cylinder (705). Several opening and closing mechanisms (9) are provided between the electromagnet (710) and the inner filter sleeve (702), and the magnetism of the electromagnet (710) is greater than that of the rubidium magnetic plate (704).

3. The metal welding powder processing and purification device with magnetic filtration function according to claim 1, characterized in that: The feeding mechanism (4) includes a feeding pipe (401) and a DC motor (403) fixedly installed on the top of the support plate (6). A feeding auger (404) for conveying metal welding powder is movably installed inside the feeding pipe (401), and the shaft of the feeding auger (404) is fixedly connected to the output shaft of the DC motor (403). A feeding hopper (402) for feeding is fixedly installed at the front end of the top of the feeding pipe (401).

4. The metal welding powder processing and purification device with magnetic filtration function according to claim 1, characterized in that: A slot (3) is provided at the rear of the top surface of the base (1). The receiving mechanism (5) includes an outer receiving tank (501) for collecting magnetic metal impurities. An inner receiving tank (502) for collecting non-magnetic metal welding powder is centrally connected inside the outer receiving tank (501). A locking block (503) for limiting the outer receiving tank (501) is fixedly installed at the bottom of the outer receiving tank (501), and the locking block (503) is engaged with the slot (3).

5. The metal welding powder processing and purification device with magnetic filtration function according to claim 1, characterized in that: The drive mechanism (8) includes a servo motor (801) fixedly connected to the bracket plate (6), a gear (802) fixedly installed at the top of the output shaft of the servo motor (801), a gear ring (803) meshing with the gear (802), and the gear ring (803) fixedly connected to the inner filter sleeve (702).

6. The metal welding powder processing and purification device with magnetic filtration function according to claim 1, characterized in that: The number of opening and closing mechanisms (9) is the same as the number of superconducting magnetic plates (706). The opening and closing mechanism (9) includes a superconducting magnetic plate opening and closing plate (901) that is slidably connected to the superconducting magnetic plate (706), a movable plate (902) that is rotatably connected to the outer side of the superconducting magnetic plate opening and closing plate (901), and torsion springs (903) that are fixedly installed at the connection between the outer side of the upper and lower shafts of the movable plate (902) and the superconducting magnetic plate opening and closing plate (901), and a trigger plate (904) that is fixedly connected to the electromagnet (710) and at the same height as the movable plate (902) for triggering the operation of the movable plate (902).

7. The metal welding powder processing and purification device with magnetic filtration function according to claim 3, characterized in that: The end of the feeding pipe (401) is located directly above the inner screening cylinder (705), and the outer diameter of the feeding pipe (401) is smaller than the inner diameter of the inner screening cylinder (705).

8. The metal welding powder processing and purification device with magnetic filtration function according to claim 4, characterized in that: The inner diameter of the outer receiving tank (501) is greater than the inner diameter of the outer filter sleeve (701), the inner diameter of the inner receiving tank (502) is greater than the inner diameter of the inner filter sleeve (702), and the outer diameter of the inner receiving tank (502) is equal to the outer diameter of the inner filter sleeve (702).

9. The metal welding powder processing and purification device with magnetic filtration function according to claim 1, characterized in that: The height of the hollow part of the inner screening cylinder (705) is less than the height of the through groove (707). The bottom of the through groove (707) is inclined downward. The inner filter sleeve (702) is movably connected to the support plate (6) at the top through the bearing (703). The outer filter sleeve (701) is fixedly connected to the support plate (6) at the bottom, and the inner filter sleeve (702) is sleeved inside the outer filter sleeve (701).

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