A cleaning device for additive manufacturing metal powder cartridges

Abstract

The utility model relates to metal material processing technical field, and disclose a kind of cleaning device of additive manufacturing metal powder filter element, including pool body and fixing frame, further include: bolted in the hydraulic rod of the inner side of the fixing frame, the output shaft of the hydraulic rod is bolted with box, the inside rotation of the box is connected with crankshaft, the bottom of the box is penetrated and is provided with a plurality of sliding sleeves;The utility model is driven crankshaft rotation by opening drive motor, and under the cooperation of movable rod, sliding sleeve etc., to drive frame and the filter element being clamped below reciprocate up and down, simultaneously in combination with the use of transmission gear, horizontal rotation rod and rack, let filter element alternately reverse rotation one side reciprocate up and down, more complex convection is generated in cleaning water, let surface powder easily fall off, and after cleaning, open hydraulic rod drives filter element to rise, the inertia and centrifugal force generated by filter element movement, let water stain easily separate from the surface of filter element, speed up the speed of water stain drying.

Description

Technical Field

[0001] This utility model relates to the field of metal material processing technology, specifically a cleaning device for additive manufacturing metal powder filter elements. Background Technology

[0002] Powder bed fusion is a 3D printing process based on the selective melting / sintering of metal powder layers using a heat source. The metal powder used typically has a particle size of 20-70μm. During printing, the forming chamber needs to be filled with inert gas to prevent material oxidation. Simultaneously, the interaction between the heat source and the powder generates trace amounts of dust. To control environmental cleanliness, the system guides the airflow to concentrate the dust, which is then filtered through multiple stages to effectively remove powder particles and dust from the gas. This ensures the purity of the circulating gas to maintain printing accuracy while reducing emissions. However, the dust layer deposited on the filter surface gradually thickens, leading to increased filtration resistance. Therefore, it needs to be removed and cleaned periodically.

[0003] Traditional filter cleaning often involves soaking. However, tiny powder particles can adhere firmly to the surface of the filter material fibers due to static electricity. Soaking alone can leave residues. Furthermore, after cleaning, the dense mesh structure on the filter surface creates capillary action, causing residual water to be trapped by surface tension and difficult to drain quickly through natural drainage, which takes a long time. Utility Model Content

[0004] The purpose of this invention is to provide a cleaning device for additively manufactured metal powder filter elements to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for additively manufactured metal powder filter elements, comprising a tank and a fixing frame, and further comprising: A hydraulic rod is bolted to the inside of the fixed frame. The output shaft of the hydraulic rod is bolted to a housing. A crankshaft is rotatably connected inside the housing. Several sliding sleeves are provided through the bottom of the housing. Movable columns are slidably connected to the inner walls of the sliding sleeves. A movable rod rotatably connected to the crankshaft has a connector bolted to its top end and the bottom end of the movable rod hinged to the connector. A frame is bolted to the bottom end of the movable rod, and a rotating column is rotatably connected to the surface of the frame. A horizontal rotating rod is rotatably connected to one side of the frame. Vertical rods are bolted to both sides of the bottom of the housing, and racks are bolted to the surface of the vertical rods. A transmission gear that meshes with the rack is bolted to one end of the horizontal rotating rod.

[0006] The clamping assembly includes a housing, a screw, and a threaded cylinder. The housing is bolted to the bottom end of the rotating column. The screw is slidably connected to the inner wall of the housing. Threaded cylinders are threaded to both sides of the screw surface. Movable blocks are slidably connected to both sides of the inner wall of the housing. The threaded cylinder passes through the movable block and is fixed to it at the point of penetration. A handwheel is bolted to one end of the screw. Bottom grooves are formed on both sides of the bottom of the housing. A connecting rod is bolted to the bottom of the movable block. The connecting rod passes through the bottom groove and is bolted to a clamping plate.

[0007] Preferably, a clamping assembly is provided at the bottom end of the rotating column. The clamping assembly includes a box body, a screw, and a threaded cylinder. The box body is bolted to the bottom end of the rotating column. The screw is slidably connected to the inner wall of the box body. Threaded cylinders are threadedly connected to both sides of the screw surface. Movable blocks are slidably connected to both sides of the inner wall of the box body. The threaded cylinder passes through the movable block and is fixed to it at the point of penetration. A handwheel is bolted to one end of the screw. Bottom grooves are provided on both sides of the bottom of the box body. A connecting rod is bolted to the bottom of the movable block. The connecting rod passes through the bottom groove and is bolted to a clamping plate.

[0008] Preferably, the clamping plate has an overall arc-shaped design, and the surface of the clamping plate is also provided with through grooves.

[0009] Preferably, a bracket is also bolted to the bottom of the inner cavity of the housing, and a drive motor for driving the crankshaft to rotate is bolted to the top of the bracket.

[0010] Preferably, the threads on both sides of the screw surface are symmetrically designed.

[0011] Preferably, the output shaft of the drive motor is connected to the crankshaft via gear transmission.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a drive motor to rotate the crankshaft, which, in conjunction with a movable rod and sliding sleeve, drives the frame and the filter element clamped below to reciprocate up and down. Simultaneously, the use of transmission gears, a horizontal rotating rod, and a rack allows the filter element to alternately rotate forward and backward while reciprocating up and down, creating more complex convection currents in the cleaning water, allowing surface powder to easily detach. After cleaning, the hydraulic rod is activated to lift the filter element; the inertia and centrifugal force generated by the filter element's movement allow water stains to easily detach from the filter element's surface, accelerating the drying process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the present invention in operation; Figure 3 This is a cross-sectional view of the housing in this utility model; Figure 4 This is a schematic diagram of the clamping component in this utility model; Figure 5 This is a schematic diagram of the bottom of the box in this utility model.

[0014] In the diagram: 1. Pool body; 2. Fixing frame; 3. Hydraulic rod; 4. Box body; 5. Crankshaft; 6. Drive motor; 7. Movable rod; 8. Connecting piece; 9. Movable column; 10. Sliding sleeve; 11. Bracket; 12. Frame; 13. Rotating column; 14. Horizontal rotating rod; 15. Transmission gear; 16. Rack; 17. Vertical rod; 18. Clamping assembly; 181. Box body; 182. Screw; 183. Threaded cylinder; 184. Moving block; 185. Connecting rod; 186. Clamping plate; 187. Through groove; 188. Handwheel; 189. Bottom groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5 As shown, a cleaning device for additively manufactured metal powder filter elements includes a tank 1 and a fixing frame 2. The fixing frame 2 is bolted to the top of the tank 1. A hydraulic rod 3 is bolted to the inner side of the fixing frame 2. The output shaft of the hydraulic rod 3 is bolted to a housing 4. A crankshaft 5 is rotatably connected inside the housing 4. A bracket 11 is bolted to the bottom of the inner cavity of the housing 4. A drive motor 6 is bolted to the top of the bracket 11. The output shaft of the drive motor 6 is connected to the crankshaft 5 via gear transmission. Several sliding sleeves 10 are provided through the bottom of the housing 4. Movable columns 9 are slidably connected to the inner walls of the sliding sleeves 10. A movable rod 7 is rotatably connected to the surface of the crankshaft 5. A connecting piece 8 is bolted to the top of the movable column 9. Furthermore, the bottom end of the movable rod 7 is hinged to the connecting piece 8, the bottom end of the movable column 9 is bolted to the frame 12, the surface of the frame 12 is rotatably connected to the rotating column 13, the bottom end of the rotating column 13 is provided with a clamping assembly 18, one side of the frame 12 is rotatably connected to the horizontal rotating rod 14, the horizontal rotating rod 14 passes through the frame 12 and is fixed to it at the point of penetration by bearings to achieve a rotatable connection, both sides of the bottom of the box 4 are bolted to the vertical rod 17, the surface of the vertical rod 17 is bolted to the rack 16, one end of the horizontal rotating rod 14 is bolted to the transmission gear 15, the transmission gear 15 and the rack 16 mesh with each other, the other end of the horizontal rotating rod 14 is connected to the rotating column 13 through bevel gear transmission.

[0017] The clamping assembly 18 includes a housing 181, a screw 182, and a threaded cylinder 183. The housing 181 is bolted to the bottom end of the rotating column 13. The screw 182 is slidably connected to the inner wall of the housing 181. The threads on both sides of the surface of the screw 182 are symmetrically designed. Threaded cylinders 183 are threadedly connected to both sides of the surface of the screw 182. Moving blocks 184 are slidably connected to both sides of the inner wall of the housing 181. The threaded cylinder 183 passes through the moving block 184 and is fixed to it at the point of penetration. The threaded cylinder 183 and the moving block 184 are fixed to each other. A handwheel 188 is bolted to one end of the screw 182 for easy rotation of the screw 182. Bottom grooves 189 are opened on both sides of the bottom of the housing 181. A connecting rod 185 is bolted to the bottom of the moving block 184. The connecting rod 185 passes through the bottom groove 189 and is bolted to a clamping plate 186.

[0018] During use, the filter element to be cleaned is first placed between the clamping plates 186 on both sides. The handwheel 188 is turned, which drives the screw 182 to rotate. The threaded cylinders 183 on both sides drive the moving blocks 184 to move closer to each other. The moving blocks 184 move together through the connecting rod 185 and clamp the filter element through the clamping plates 186. The clamping plates 186 have an arc-shaped design and the surface of the clamping plates 186 is also provided with through grooves 187. During the clamping process, the surface of the filter element is exposed to the outside to the maximum extent.

[0019] Sufficient cleaning water is injected into the tank 1. Then, the hydraulic rod 3 is activated, and its output shaft extends to lower the housing 4 and the clamped filter element until the filter element is submerged in water. Then, the drive motor 6 is activated, and its output shaft drives the crankshaft 5 to rotate via gears. The crankshaft 5 drives the upper end of the movable rod 7 to rotate, thereby causing the movable column 9 to reciprocate up and down along the inner wall of the sliding sleeve 10. The movable column 9 drives the frame 12, the rotating column 13, the housing 181, and the clamped filter element to reciprocate up and down, thereby creating convection between the filter element and the water inside the tank 1, resulting in a better cleaning effect. At the same time, the inertia generated by the up and down reciprocating motion helps to remove powder from the surface of the filter element. Meanwhile, the frame 12 reciprocates up and down. The movement drives the horizontal rotating rod 14 and the transmission gear 15 to reciprocate. The transmission gear 15 moves up and down along the surface of the rack 16, causing the transmission gear 15 to rotate alternately in both directions. At the same time, it drives the horizontal rotating rod 14 to rotate alternately in both directions. Through the bevel gear, it drives the rotating column 13, the box 181, and the filter element clamped below to rotate alternately in both directions, thus generating more complex convection, allowing the surface powder to fall off easily. After cleaning, the hydraulic rod 3 is opened to raise the box 4, so that the filter element is positioned slightly above the water surface. At this time, the filter element moves up and down alternately in both directions. The inertia and centrifugal force generated by this movement allow water stains to easily detach from the surface of the filter element, accelerating the drying speed of the water stains.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning apparatus for additively manufactured metal powder filter elements, comprising a tank (1) and a fixing frame (2), characterized in that, Also includes: A hydraulic rod (3) is bolted to the inside of the fixed frame (2). The output shaft of the hydraulic rod (3) is bolted to a housing (4). A crankshaft (5) is rotatably connected inside the housing (4). Several sliding sleeves (10) are provided through the bottom of the housing (4). A movable column (9) is slidably connected to the inner wall of the sliding sleeve (10). The movable rod (7) is rotatably connected to the crankshaft (5). The top end of the movable column (9) is bolted with a connector (8), and the bottom end of the movable rod (7) is hinged to the connector (8). The bottom end of the movable column (9) is bolted with a frame (12). The surface of the frame (12) is rotatably connected with a rotating column (13). One side of the frame (12) is rotatably connected with a horizontal rotating rod (14). Both sides of the bottom of the housing (4) are bolted with vertical rods (17). The surface of the vertical rod (17) is bolted with a rack (16). One end of the horizontal rotating rod (14) is bolted with a transmission gear (15) that meshes with the rack (16).

2. The cleaning device for additively manufactured metal powder filter elements according to claim 1, characterized in that: The clamping assembly (18) includes a box body (181), a screw (182), and a threaded cylinder (183). The box body (181) is bolted to the bottom end of the rotating column (13). The screw (182) is slidably connected to the inner wall of the box body (181). Threaded cylinders (183) are threaded to both sides of the surface of the screw (182). Moving blocks (184) are slidably connected to both sides of the inner wall of the box body (181). The threaded cylinder (183) passes through the moving block (184) and is fixed to it at the point of penetration. A handwheel (188) is bolted to one end of the screw (182). Bottom grooves (189) are provided on both sides of the bottom of the box body (181). A connecting rod (185) is bolted to the bottom of the moving block (184). The connecting rod (185) passes through the bottom groove (189) and is bolted to a clamping plate (186).

3. The cleaning device for additively manufactured metal powder filter elements according to claim 2, characterized in that: The clamping plate (186) has an overall arc-shaped design, and the surface of the clamping plate (186) is also provided with a through groove (187).

4. The cleaning device for additively manufactured metal powder filter elements according to claim 1, characterized in that: A bracket (11) is also bolted to the bottom of the inner cavity of the housing (4), and a drive motor (6) for driving the crankshaft (5) to rotate is bolted to the top of the bracket (11).

5. A cleaning device for additively manufactured metal powder filter elements according to claim 2, characterized in that: The threads on both sides of the screw (182) surface are designed symmetrically.

6. The cleaning apparatus for additively manufactured metal powder filter elements according to claim 4, characterized in that: The output shaft of the drive motor (6) is connected to the crankshaft (5) via gear transmission.

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