An inductive metal powder preparation device

Abstract

This application relates to an inductive metal powder preparation apparatus, belonging to the field of nano-metal powder production technology. It includes a main body and a sorting chamber connected to the discharge end of the main body. A partition, an inclined plate, and a support plate are fitted between opposite side walls of the sorting chamber. The partition is vertical and fixedly connected to the sorting chamber. One side of the sorting chamber, adjacent to the partition, is a finished product chamber, and the other side, adjacent to the partition, is a reprocessing chamber. The inclined plate is tilted and fixed to the top of the partition. The support plate is horizontally positioned within the reprocessing chamber, with its upper surface abutting against the lowest point of the inclined plate. The end of the support plate away from the partition abuts against the side wall of the sorting chamber. An air outlet is provided on the side wall of the sorting chamber, through which airflow is introduced into the sorting chamber. The discharge end of the main body is located directly above the support plate. This application effectively reduces large particles in the prepared finished metal nano-powder, improving the overall quality of the nano-metal powder.

Description

Technical Field

[0001] This application relates to the field of nano-metal powder production technology, and in particular to an inductive metal powder preparation apparatus. Background Technology

[0002] Metal nanomaterials are an important branch of nanomaterials. Among them, metal nanopowders belong to zero-dimensional nanomaterials. Their atomic and electronic structures differ from those of metal particles of the same composition. They have unique properties in terms of magnetism, optics, electricity, sound, heat, force, and chemistry, which are different from macroscopic objects and individual atoms.

[0003] The related technology includes an induction metal powder preparation device, whose main principle is as follows: in a vacuum or inert atmosphere, an induction coil heats the metal to a molten state, and a high-pressure gas (such as Ar or N2) breaks the liquid metal flow into microdroplets and cools it into powder. Finally, the cooled metal powder is output from the discharge end of the device.

[0004] In the process of developing this application, it was found that the technology has at least the following problems: when preparing metal nanopowders, large powder particles still appear, affecting the overall quality of the powder. For example, when using these powders for high-precision part spraying, large powder particles will affect the smoothness of the parts. Summary of the Invention

[0005] In order to reduce the large particles generated in the prepared metal nanopowder and improve the overall quality of the nano metal powder, this application provides an inductive metal powder preparation device.

[0006] The inductive metal powder preparation device provided in this application adopts the following technical solution:

[0007] An inductive metal powder preparation device includes a main body and a sorting chamber connected to the discharge end of the main body. A partition, an inclined plate, and a support plate are connected and arranged between opposite side walls of the sorting chamber. The partition is vertical and fixedly connected to the sorting chamber. One side of the sorting chamber containing the partition forms a finished product chamber, and the other side contains a reprocessing chamber. The inclined plate is inclined and fixed to the top of the partition, with its highest point directly above the finished product chamber and its lowest point... Extending into the reprocessing chamber, the pallet is horizontally positioned within the reprocessing chamber. The upper surface of the pallet abuts against the lowest end of the inclined plate, and the end of the pallet away from the partition abuts against the side wall of the sorting chamber. An air outlet is provided on the side wall of the sorting chamber, which is higher than the lowest end of the inclined plate and lower than the highest end of the inclined plate. The air outlet is located at the end of the pallet away from the partition, and the air outlet inputs airflow into the sorting chamber. The discharge end of the main body of the equipment extends directly above the pallet, with its opening facing downwards.

[0008] By adopting the above technical solution, the metal powder output from the main body of the equipment falls onto the tray. The airflow input from the air outlet blows the metal powder on the tray. Because the nano-sized small particles are relatively light, they are blown up by the airflow and fall onto the inclined plate, and then slide into the finished product chamber along the inclined plate. However, the large particles are difficult to be blown by the airflow due to their large mass, and will remain on the tray, or they are too heavy to cross the inclined plate. This achieves the separation of large and small particles, reduces the amount of large particles in the finished product, and improves the overall quality of the nano-metal powder.

[0009] Preferably, the pallet has a deflection shaft fixedly installed at one end near the partition, the deflection shaft is rotatably connected to the sorting bin, and the sorting bin is provided with a deflection mechanism for driving the deflection shaft to rotate.

[0010] By adopting the above technical solution, when a certain amount of large powder particles accumulate on the pallet, the deflection mechanism drives the deflection shaft to rotate, which can tilt the pallet, making it easier for the large powder particles on the pallet to slide into the reprocessing chamber for collection and waiting for subsequent processing. No manual cleaning is required, which improves the convenience of operation.

[0011] Preferably, a level detector is provided on the upper surface of the pallet, which is used to detect the height of the metal powder accumulated on the pallet, and the level detector is electrically connected to the deflection mechanism.

[0012] By adopting the above technical solution, the level detector can detect the accumulation height of powder on the pallet in real time. When the powder height reaches the preset value, the level detector sends a signal to the deflection mechanism, which automatically drives the pallet to deflect, thereby realizing the automatic cleaning of large powder particles and further improving the automation level and work efficiency of the system.

[0013] Preferably, the deflection mechanism includes a mounting frame, a cylinder, a connecting frame, a rack, and a gear. The mounting frame is fixedly connected to the side wall of the sorting chamber. The cylinder is fixedly connected to the mounting frame, and the output end of the cylinder is horizontal. One end of the connecting frame is fixedly connected to the output end of the cylinder. The rack is fixedly connected to the other end of the connecting frame, and the rack's movement direction is parallel to that of the cylinder's output end. The gear is coaxially fixed to the deflection shaft, and the rack can mesh with the gear.

[0014] By adopting the above technical solution, when the output end of the cylinder extends or retracts, the rack moves horizontally through the connecting frame. The rack meshes with the gear, causing the gear to rotate, which in turn causes the deflection shaft to rotate, thus achieving the deflection of the pallet. This mechanism is pneumatically driven, has a simple structure, stable operation, and is easy to control the deflection angle and speed of the pallet.

[0015] Preferably, the sorting chamber is equipped with an elastic hose that is fitted onto the discharge end of the main body of the equipment, and the sorting chamber is equipped with a cutting mechanism for clamping and sealing the elastic hose.

[0016] By adopting the above technical solution, when the pallet is deflected to clean large particles of powder, the cutting mechanism clamps the elastic hose to seal it, which can prevent the main body of the equipment from continuing to convey powder to the pallet, avoid the powder falling during the cleaning process and affecting the sorting effect, and ensure the orderly progress of the sorting work.

[0017] Preferably, the cutting mechanism includes a fixed block and a movable block. The fixed block is located on one side of the elastic hose and is fixedly connected to the sorting chamber. The movable block is located on the other side of the elastic hose and is connected to the output end of the cylinder. The movable block and the fixed block can clamp together to seal the elastic hose.

[0018] By adopting the above technical solution, when the output end of the cylinder moves, it can simultaneously drive the movable block to move. When the cylinder drives the rack to deflect the support plate, the movable block moves closer to the fixed block and together clamps the elastic hose, realizing the automatic closure of the elastic hose. When the support plate resets, the movable block moves away from the fixed block, and the elastic hose is unblocked again. This structure links the cutting-off action with the support plate deflection action, simplifies the system structure, and reduces the control difficulty.

[0019] Preferably, the output end of the cylinder is fixedly provided with a sleeve, the movable block is horizontally and fixedly provided with an insertion rod on the side opposite to the fixed block, the insertion rod is inserted into the sleeve, a connecting spring is provided in the sleeve, one end of the connecting spring is fixedly connected to the inner wall of the end of the sleeve, the other end of the connecting spring is fixedly connected to the insertion rod, and the connecting spring drives the insertion rod to extend out of the sleeve.

[0020] By adopting the above technical solution, the connecting spring can provide a buffering effect during the process of the movable block and the fixed block clamping the elastic hose, avoiding excessive clamping of the movable block and the fixed block that could damage the elastic hose, while ensuring that the elastic hose is reliably sealed, thus extending the service life of the elastic hose.

[0021] Preferably, the gear and rack begin to mesh after the movable block and the fixed block clamp together to seal the elastic hose.

[0022] By adopting the above technical solution, it is ensured that the tray only begins to deflect after the elastic hose is completely closed, avoiding the situation where powder is still being conveyed when the tray deflects, and further improving the reliability of cleaning large particles of powder.

[0023] Preferably, the sorting bin has an exhaust port on the side wall away from the air outlet, a circulating pump is fixedly installed on the sorting bin, the air inlet of the circulating pump is connected to the exhaust port through a pipe, the air outlet of the circulating pump is connected to the air outlet through a pipe, and the circulating pump is electrically connected to the material level detector.

[0024] By adopting the above technical solution, the circulating pump draws the airflow in the sorting chamber from the exhaust port and delivers it to the blower port, realizing the circulation of airflow; at the same time, the material level detector controls the circulating pump, which can be turned off when the pallet is cleaning powder, reducing the interference of airflow on the cleaning process.

[0025] Preferably, a baffle is fixedly installed on the side wall of the sorting chamber away from the air outlet, the air outlet is located inside the baffle, and an air duct connecting the sorting chamber and the air outlet is opened at the top of the baffle. The top of the baffle is higher than the highest end of the inclined plate.

[0026] By adopting the above technical solution, the baffle can guide the flow path of the airflow, so that the airflow input from the blower first passes above the tray to sort the powder, and then enters the exhaust port from the air duct at the top of the baffle, thus minimizing the airflow carrying powder into the exhaust port.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By setting up sorting bins, partitions, inclined plates, trays, finished product chambers, reprocessing chambers, and air outlets, the difference in the blowing effect of airflow on particles of different masses is utilized to realize the automatic sorting of large and small particles in metal powder, effectively reducing large particles in the finished powder and significantly improving the overall quality of nano metal powder.

[0029] 2. By setting up a deflection shaft, deflection mechanism, material level detector, mounting frame, cylinder, connecting frame, rack and pinion, and gear, the automatic detection and cleaning of large powder particles on the pallet is realized, which improves the automation level of the system, reduces manual intervention, and ensures the continuity and efficiency of production;

[0030] 3. By setting up flexible hoses, fixed blocks, movable blocks, sleeves, insertion rods, and connecting springs, the system can achieve pallet deflection while ensuring reliable interruption of powder conveying during the cleaning process, thus improving the stability of system operation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an inductive metal powder preparation device provided in the embodiments of this application.

[0032] Figure 2 yes Figure 1 Enlarged view of part A

[0033] Figure 3 This is a cross-sectional structural schematic diagram of an inductive metal powder preparation device provided in the embodiments of this application.

[0034] Figure 4 yes Figure 3 Enlarged view of section B.

[0035] Explanation of reference numerals in the attached drawings: 1. Sorting bin; 11. Partition plate; 111. Finished product chamber; 112. Reprocessing chamber; 12. Inclined plate; 13. Support plate; 131. Deflection shaft; 132. Material level detector; 133. Second magnet; 14. Circulating pump; 141. Air outlet; 142. Exhaust outlet; 15. Baffle; 151. Air duct; 16. Bin door; 17. Material box; 18. Collection hopper; 19. Thickened ladder platform; 191. First magnet; 2. Deflection mechanism; 21. Mounting frame; 22. Cylinder; 23. Connecting frame; 24. Rack; 25. Gear; 3. Flexible hose; 4. Cutting mechanism; 41. Fixed block; 42. Moving block; 43. Sleeve; 44. Insert rod; 45. Connecting spring; 5. Main body of equipment. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] This application discloses an inductive metal powder preparation apparatus. (Refer to...) Figures 1 to 3 The equipment includes a main body 5 and a sorting chamber 1. The sorting chamber 1 is connected to the discharge end of the main body 5. A partition 11, an inclined plate 12, and a support plate 13 are fitted between opposite side walls of the sorting chamber 1. The partition 11 is vertical and fixedly connected to the opposite side walls and the bottom wall of the sorting chamber 1. The sorting chamber 1 has a finished product chamber 111 on one side of the partition 11 and a reprocessing chamber 112 on the other side of the partition 11. In this embodiment, the sorting chamber 1 is provided with two openable doors 16. When the doors 16 are closed, the sorting chamber 1 is sealed. One door 16 connects the outside of the sorting chamber 1 to the finished product chamber 111, and the other door 16 connects the outside of the sorting chamber 1 to the reprocessing chamber 112. Both the finished product chamber 111 and the reprocessing chamber 112 have a material box 17 at the bottom that can pass through the door 16. Both the finished product chamber 111 and the reprocessing chamber 112 are also fixedly installed with a collection hopper 18. The top of the collection hopper 18 is attached to and fixed to the four walls of the finished product chamber 111 or the reprocessing chamber 112. The top of the collection hopper 18 is open. The bottom of the collection hopper 18 extends above the material box 17. The inclined plate 12 is located above the two collection hoppers 18.

[0038] Reference Figure 3 and Figure 4An inclined plate 12 is tilted and fixed to the top of a partition 11. The highest end of the inclined plate 12 is located directly above the finished product chamber 111, and the lowest end of the inclined plate 12 extends into the reprocessing chamber 112. A tray 13 is horizontally disposed within the reprocessing chamber 112. A deflection shaft 131 is fixedly disposed at one end of the tray 13 near the partition 11. The deflection shaft 131 is horizontal and rotatably connected to the sorting bin 1. A deflection mechanism 2 is disposed on the sorting bin 1 to drive the deflection shaft 131 to rotate. A level detector 132 is disposed on the upper surface of the tray 13. The level detector 132 is used to detect the height of the metal powder accumulated on the tray 13. The level detector 132 is electrically connected to the deflection mechanism 2. In this embodiment, the level detector 132 can be a capacitive sensor.

[0039] Reference Figure 4 The upper surface of the tray 13 abuts against the lowest end of the inclined plate 12, and the end of the tray 13 away from the partition 11 abuts against the side wall of the sorting chamber 1. In this embodiment, an inwardly extending thickened ladder 19 is integrally formed on the side wall of the sorting chamber 1. The upper surface of the end of the tray 13 away from the partition 11 abuts against and fits against the bottom of the thickened ladder 19. A first magnet 191 is embedded in the thickened ladder 19, and a second magnet 133 is embedded in the end of the tray 13 away from the partition 11. The first magnet 191 and the second magnet 133 attract each other so that the end of the tray 13 abuts against the thickened ladder 19.

[0040] Reference Figure 3 and Figure 4 An air inlet 141 is provided on the side wall of the sorting chamber 1. The air inlet 141 is higher than the lowest end of the inclined plate 12 and lower than the highest end of the inclined plate 12. The air inlet 141 is located at the end of the support plate 13 away from the partition plate 11 and passes through the thickened ladder platform 19. The air inlet 141 inputs airflow into the sorting chamber 1. The discharge end of the main body 5 is located directly above the support plate 13. An exhaust port 142 is provided on the side wall of the sorting chamber 1 away from the air inlet 141. A circulation pump 14 is fixedly installed on the sorting chamber 1. The air inlet of the circulation pump 14 is connected to the exhaust port 142 through a pipe. The air outlet of the circulation pump 14 is connected to the air inlet 141 through a pipe. The circulation pump 14 is electrically connected to the material level detector 132. A baffle 15 is fixedly installed on the side wall of the sorting chamber 1 away from the air outlet 141. The exhaust outlet 142 is located inside the baffle 15. An air duct 151 connecting the sorting chamber 1 and the exhaust outlet 142 is opened on the top of the baffle 15. The top of the baffle 15 is higher than the highest end of the inclined plate 12.

[0041] Reference Figures 1 to 3The deflection mechanism 2 includes a mounting frame 21, a cylinder 22, a connecting frame 23, a rack 24, and a gear 25. The mounting frame 21 is fixedly connected to the outer wall of the sorting chamber 1. The cylinder 22 is fixedly connected to the mounting frame 21, and its output end is horizontal. The cylinder 22 is electrically connected to the material level detector 132. One end of the connecting frame 23 is fixedly connected to the output end of the cylinder 22, and the rack 24 is fixedly connected to the other end of the connecting frame 23. The rack 24 moves parallel to the direction of movement of the cylinder 22's output end. The gear 25 is located outside the sorting chamber 1 and is coaxially fixed to the deflection shaft 131. The rack 24 can mesh with the gear 25.

[0042] Reference Figure 4 The sorting chamber 1 is equipped with an elastic hose 3 that is fitted onto the discharge end of the main body 5. A cutting mechanism 4 is also installed within the sorting chamber 1 to clamp and seal the elastic hose 3. Specifically, the cutting mechanism 4 includes a fixed block 41 and a movable block 42. The fixed block 41 is located on one side of the elastic hose 3 and is fixedly connected to the sorting chamber 1. The movable block 42 is located on the other side of the elastic hose 3 and is connected to the output end of the cylinder 22. The movable block 42, together with the fixed block 41, can clamp and seal the elastic hose 3. More specifically, a sleeve 43 is fixedly installed at the output end of the cylinder 22. A rod 44 is horizontally and fixedly installed on the side of the movable block 42 opposite to the fixed block 41. The rod 44 is inserted into the sleeve 43. A connecting spring 45 is installed inside the sleeve 43. One end of the connecting spring 45 is fixedly connected to the inner wall of the end of the sleeve 43, and the other end is fixedly connected to the rod 44. The connecting spring 45 drives the rod 44 to extend out of the sleeve 43. And when the movable block 42 and the fixed block 41 clamp together to seal the elastic hose 3, the gear 25 and the rack 24 begin to mesh.

[0043] The implementation principle of the inductive metal powder preparation device in this application embodiment is as follows: Metal powder enters the screening chamber from the output end of the main body 5 of the device. Under the action of airflow, the lighter nano-sized particles are blown up and rise with the airflow to pass over the inclined plate 12, and then fall into the collection hopper 18 of the finished product chamber 111, and finally fall into the material box 17 of the finished product chamber 111. The larger particles are difficult to be blown by the airflow, or are difficult to pass over the top of the inclined plate 12 after being blown by the airflow, and remain on the tray 13. The material level detector 132 on the tray 13 monitors the accumulation height of the large particles in real time. When the height reaches the preset value, the material level detector 132 sends a signal, the circulation pump 14 stops working, the airflow is interrupted, and the large particles on the inclined plate 12 fall back to the baffle. The output end of the cylinder 22 extends outward and drives the movable block 42 to move towards the fixed block 41 through the connecting frame 23. The movable block 42 and the fixed block 41 together clamp the elastic hose 3, blocking the powder conveying, and the output powder is temporarily stored in the elastic hose 3. As the output end of cylinder 22 continues to extend outward, the insert rod 44 compresses the connecting spring 45, and the rack 24 moves with the connecting frame 23 and begins to mesh with the gear 25, driving the gear 25 and the deflection shaft 131 to rotate. The tray 13 deflects around the deflection shaft 131, and the large powder particles on the tray 13 slide down to the collection hopper 18 of the reprocessing chamber 112, and finally fall into the material box 17 of the reprocessing chamber 112. After cleaning, the output end of cylinder 22 is reset: the tray 13 first deflects in the opposite direction to the horizontal, the first magnet 191 and the second magnet 133 attract each other to keep the tray 13 in a horizontal state, and then the rack 24 disengages from the gear 25; the movable block 42 moves away from the fixed block 41, and the elastic hose 3 is unblocked. The circulating pump 14 restarts, the airflow is restored, and the main body of the equipment 5 feeds powder to the tray 13 again, repeating the sorting process. Large and small particles are separated by airflow sorting, reducing the large powder particles generated in the prepared finished metal nanopowder and improving the overall quality of the nano metal powder.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An inductive metal powder preparation device, characterized in that: The equipment includes a main body (5) and a sorting chamber (1) connected to the discharge end of the main body (5). A partition (11), an inclined plate (12), and a support plate (13) are connected between opposite side walls of the sorting chamber (1). The partition (11) is vertical and fixedly connected to the sorting chamber (1). One side of the sorting chamber (1) adjacent to the partition (11) is a finished product chamber (111), and the other side of the sorting chamber (1) adjacent to the partition (11) is a reprocessing chamber (112). The inclined plate (12) is inclined and fixed to the top of the partition (11). The highest point of the inclined plate (12) is directly above the finished product chamber (111), and the lowest point of the inclined plate (12) extends into the reprocessing chamber (112). The support plate (13) is horizontally positioned... Inside the reprocessing chamber (112), the upper surface of the pallet (13) abuts against the lowest end of the inclined plate (12), and the end of the pallet (13) away from the partition (11) abuts against the side wall of the sorting chamber (1). An air outlet (141) is provided on the side wall of the sorting chamber (1). The air outlet (141) is higher than the lowest end of the inclined plate (12) and lower than the highest end of the inclined plate (12). The air outlet (141) is located at the end of the pallet (13) away from the partition (11). The air outlet (141) inputs airflow into the sorting chamber (1). The discharge end of the main body of the equipment (5) extends directly above the pallet (13) and faces downward. A deflection shaft (131) is fixedly provided at the end of the pallet (13) near the partition (11). The deflection shaft (131) is rotatably connected to the sorting chamber (1), and the sorting chamber (1) is provided with a deflection mechanism (2) for driving the deflection shaft (131) to rotate; the deflection mechanism (2) includes a mounting frame (21), a cylinder (22), a connecting frame (23), a rack (24), and a gear (25). The mounting frame (21) is fixedly connected to the side wall of the sorting chamber (1), the cylinder (22) is fixedly connected to the mounting frame (21), the output end of the cylinder (22) is horizontal, one end of the connecting frame (23) is fixedly connected to the output end of the cylinder (22), the rack (24) is fixedly connected to the other end of the connecting frame (23), and the rack (24) is parallel to the direction of movement of the output end of the cylinder (22). The gear (25) is fixed coaxially with the deflection shaft (131), and the rack (24) can mesh with the gear (25); the sorting bin (1) is provided with an elastic hose (3) sleeved on the discharge end of the equipment body (5), and the sorting bin (1) is provided with a cutting mechanism (4), which is used to clamp and close the elastic hose (3); the cutting mechanism (4) includes a fixed block (41) and a movable block (42), the fixed block (41) is located on one side of the elastic hose (3) and is fixedly connected to the sorting bin (1), the movable block (42) is located on the other side of the elastic hose (3) and is connected to the output end of the cylinder (22), and the movable block (42) can be clamped together with the fixed block (41) to close the elastic hose (3);The output end of the cylinder (22) is fixedly provided with a sleeve (43). The movable block (42) is horizontally and fixedly provided with a rod (44) on the side opposite to the fixed block (41). The rod (44) is inserted into the sleeve (43). A connecting spring (45) is provided inside the sleeve (43). One end of the connecting spring (45) is fixedly connected to the inner wall of the end of the sleeve (43), and the other end of the connecting spring (45) is fixedly connected to the rod (44). The connecting spring (45) drives the rod (44) to extend out of the sleeve (43). When the movable block (42) and the fixed block (41) clamp together to close the elastic hose (3), the gear (25) and the rack (24) begin to mesh.

2. The inductive metal powder preparation apparatus according to claim 1, characterized in that: A level detector (132) is provided on the upper surface of the pallet (13). The level detector (132) is used to detect the height of the metal powder accumulated on the pallet (13). The level detector (132) is electrically connected to the deflection mechanism (2).

3. The inductive metal powder preparation apparatus according to claim 2, characterized in that: The sorting bin (1) has an exhaust port (142) on the side wall away from the air outlet (141). A circulation pump (14) is fixedly installed on the sorting bin (1). The air inlet of the circulation pump (14) is connected to the exhaust port (142) through a pipe. The air outlet of the circulation pump (14) is connected to the air outlet (141) through a pipe. The circulation pump (14) is electrically connected to the material level detector (132).

4. The inductive metal powder preparation apparatus according to claim 3, characterized in that: The sorting chamber (1) has a baffle (15) fixedly installed on the side wall away from the air outlet (141). The exhaust outlet (142) is located inside the baffle (15). The top of the baffle (15) has an air duct (151) connecting the sorting chamber (1) and the exhaust outlet (142). The top of the baffle (15) is higher than the highest end of the inclined plate (12).

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