An apparatus for wet preparation of copper powder with low bulk density

Abstract

This invention relates to the field of copper powder production technology, specifically to an apparatus for wet preparation of low bulk density copper powder. The apparatus includes a preparation box, with a drain pipe fixedly installed at one end. An outwardly protruding support frame is fixedly installed on the preparation box above the drain pipe. A drive assembly is mounted on the outwardly protruding support frame, and a movable filter mechanism is mounted on the drive assembly. The drive assembly moves the movable filter mechanism to filter the liquid and simultaneously concentrate the copper particles. As the movable filter plate moves, it reduces the space where the copper particles accumulate, thus concentrating them on the upper side of the discharge channel for easy subsequent discharge. Furthermore, as the sealing plate moves upward, it drives a rotating shaft to rotate, thereby unlocking the movable filter plate, removing it from the carrying plate. This allows for quick and easy disassembly and cleaning of the movable filter plate.

Description

Technical Field

[0001] This invention relates to the field of copper powder production technology, specifically to an apparatus for wet preparation of copper powder with low bulk density. Background Technology

[0002] Copper powder is a type of powder used in metal additive manufacturing. It is typically produced using a wet process, a method that generates copper powder in a liquid environment. This process utilizes chemical reactions or physical processes to produce copper particles in a solution, which are then processed into copper powder. Wet processing allows for the selection of appropriate reducing agents and reaction conditions, enabling control over the particle size and morphology of the copper powder and reducing its bulk density. After the copper particles are produced by the wet process, they need to be separated from the liquid, often using filtration. However, the installation of filter plates in existing wet processing equipment is cumbersome, and these plates need to be disassembled and cleaned after use to maintain their filtration efficiency. This inconvenience often results in significant time spent on filter plate installation and removal, and the filtered copper powder cannot be collected for convenient discharge. Summary of the Invention

[0003] The purpose of this invention is to provide an apparatus for wet preparation of copper powder with low bulk density, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An apparatus for wet preparation of low bulk density copper powder includes a preparation box, a drain pipe fixedly installed at one end of the preparation box, an outwardly protruding support frame fixedly installed on the preparation box above the drain pipe, and a drive assembly installed on the outwardly protruding support frame;

[0006] The drive assembly is equipped with a movable filter mechanism, and the drive assembly carries the movable filter mechanism to move and filter the liquid, while concentrating the copper particles.

[0007] The drive component is also equipped with a connection locking mechanism, which enables a fixed connection between the movable filter mechanism and the drive component.

[0008] A movable discharge assembly is also installed on the lower side of the other end of the preparation box. The drive assembly unlocks the movable discharge assembly during the movement of the drive assembly, thus completing the centralized discharge.

[0009] Preferably, a bottom plate is fixedly provided at the lower end of the preparation box, and an alignment groove is provided on the bottom plate;

[0010] On the other side of the preparation box opposite to the convex support frame, there are also symmetrically fixed support frames on both sides, and on the other side of the preparation box away from the convex support frame, there are also symmetrically fixed support blocks on both sides.

[0011] Preferably, the support strip has a support channel and a connecting hole, so as to support the movable material discharge assembly.

[0012] A discharge channel is provided on the lower side of the preparation box away from the protruding support frame, and a sealing ring gasket is provided on the end face where the lower port of the discharge channel is located.

[0013] Preferably, the drive assembly includes an electric telescopic rod, a carrying strip, and a fitting sealing plate. The carrying strip is fixedly installed on the electric telescopic rod, and contact plates are symmetrically fixed on both sides of the carrying strip.

[0014] The contact carrier plate is provided with a bearing insertion hole, and an extension block is fixedly provided on the contact carrier plate. The extension block is provided with a connection insertion hole, and a mating strip is also fixedly provided on the contact carrier plate on the lower side of the extension block.

[0015] Preferably, the carrying strip is provided with symmetrical mounting holes, and a support plate is symmetrically fixed on the carrying strip between the mounting holes, and a limit through hole is provided on the support plate.

[0016] A fitting and sealing plate is installed on the carrying strip. Side carriers are symmetrically fixed on both sides of the upper end of the fitting and sealing plate. An upper drive push rod is hinged to the side carrier, and the other end of the upper drive push rod is hinged to the support frame.

[0017] Preferably, a connecting rod is fixedly provided at the lower end of the side support strip, and the connecting rod is inserted into the connecting hole;

[0018] A bearing block is fixedly installed at the lower end of the connecting rod, and an upward-pushing mating rod is fixedly installed on the bearing block.

[0019] Preferably, the movable filter mechanism is a movable filter plate, and the movable filter plate has symmetrical connecting lock holes on both sides;

[0020] When the movable filter plate is installed on the carrier strip, it is positioned between the carrier strip and the sealing plate, with both ends of the movable filter plate in contact with the carrier strip and the sealing plate, respectively.

[0021] Preferably, the connection locking mechanism includes a rotating shaft and a movable block, wherein a bearing is sleeved on the rotating shaft and the bearing is installed in the mounting hole;

[0022] A rotary drive plate is fixedly installed on one side of the rotating shaft, and a matching tie rod is fixedly installed on the other side. The matching tie rod is connected to a movable carrier block.

[0023] The movable block has a movable mounting hole, and a limiting rod is fixedly installed on the movable block. The limiting rod is inserted into the limiting through hole, and a connecting spring is sleeved on the limiting rod.

[0024] Preferably, a movable connecting rod is inserted into the movable mounting hole, and a bearing top plate is fixedly provided at the upper end of the movable connecting rod;

[0025] A connecting plate is fixedly installed on the bearing top plate, and the lower end of the connecting plate is hinged to the connecting rod.

[0026] A support end plate is fixedly installed at one end of the movable block, a load-bearing strip is fixedly installed on the support end plate, and a connecting lock pin is fixedly installed on the load-bearing strip. The connecting lock pin is inserted into the load-bearing socket.

[0027] Preferably, the movable discharge assembly includes a channel sealing plate, a drive bar, and a receiving bucket, wherein the channel sealing plate is disposed below the discharge channel and contacts the sealing ring gasket;

[0028] A conical slide is fixedly installed on the channel sealing plate, and a material discharge channel is opened on the channel sealing plate. The material discharge channel is located around the conical slide, and mounting strips are symmetrically fixed on both sides of the channel sealing plate. The mounting strips are inserted into the bearing channel.

[0029] The upper end of the mounting strip is provided with a mounting through hole, and a mating carrier plate is also fixedly provided thereon, wherein the mating carrier plate is provided with an insertion through hole;

[0030] A drive bar is installed on the mounting strip, and a mounting rod is fixedly installed on the drive bar. The mounting rod is inserted into the mounting through hole, and a matching spring is sleeved on the mounting rod. A matching push rod is hinged on the drive bar, and a positioning block is hinged to the other end of the matching push rod. A positioning matching rod is fixedly installed on the positioning block, and the positioning matching rod is inserted into the insertion through hole.

[0031] The receiving bucket is inserted into the alignment groove, and the receiving bucket is located directly below the discharge channel.

[0032] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a reasonable structural design and strong functionality, and has the following advantages:

[0033] 1. After the reaction in the preparation chamber is completed, the electric telescopic rod is activated to move the carrying bar towards the support frame. As the carrying bar moves, it will move the movable filter plate and the sealing plate, and at the same time, the sealing plate will move upward relative to the movable filter plate. In this way, the sealing plate will no longer block the filter holes on the movable filter plate, and the liquid will be discharged from the drain pipe through the movable filter plate, so that the copper particles are filtered out and the reaction liquid is discharged at the same time.

[0034] 2. When the movable filter plate moves, it reduces the space where copper particles accumulate, thus concentrating the copper particles and causing them to pile up on the upper side of the discharge channel for easy discharge later. As the sealing plate moves upward, it drives the rotating shaft to rotate, thereby unlocking the movable filter plate and removing it from the carrying plate. This allows the movable filter plate to be quickly disassembled for cleaning, which is very convenient and eliminates the need for complicated installation and disassembly operations.

[0035] 3. In addition, as the carrying strip moves, the mating strip will come into contact with the drive strip. Under the action of the mating strip, the drive strip will be pushed to move. As the drive strip moves, under the action of the mating push rod, the positioning block will be pushed to move, thereby causing the positioning mating rod to disengage from the mating connecting hole, so that the channel sealing plate is in the unlocked state. Under the action of gravity, it moves downward, opening the discharge channel, thus realizing automatic discharge, allowing the copper particles to fall and be collected in the receiving bucket, achieving convenient discharge. Attached Figure Description

[0036] Figure 1 A first-person view diagram of the assembly of the preparation box.

[0037] Figure 2 A second-view schematic diagram of the assembly of the preparation box.

[0038] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0039] Figure 4 for Figure 2 Enlarged diagram of point B in the middle.

[0040] Figure 5 This is a first-view structural schematic diagram of the preparation box.

[0041] Figure 6 This is a schematic diagram of the second-view structure of the preparation box.

[0042] Figure 7 for Figure 5 Enlarged diagram of point C in the middle.

[0043] Figure 8 This is a schematic diagram showing the fit between the movable filter plate and the attached sealing plate.

[0044] Figure 9 This is a schematic diagram of the assembly of the rotating shaft and the movable block.

[0045] Figure 10 This is a schematic diagram of the assembly of the channel sealing plate and the drive bar.

[0046] In the diagram: 1. Preparation box; 10. Box bottom plate; 101. Alignment groove; 11. Drain pipe; 12. Outwardly protruding support frame; 13. Electric telescopic rod; 14. Support frame; 15. Supporting strip; 16. Supporting channel; 17. Connecting hole; 18. Discharge channel; 19. Sealing ring gasket; 2. Carrying strip; 21. Contact plate; 22. Supporting insertion hole; 23. Outer extension block; 24. Connecting insertion hole; 25. Connecting strip; 26. Mounting hole; 27. Supporting plate; 28. Limiting through hole; 3. Movable filter plate; 31. Connecting lock hole; 4. Adhesive sealing plate; 41. Side support strip; 42. Upper drive push rod; 43. Connecting rod; 44. Supporting bottom block; 4 5. Upward-pushing mating rod; 5. Rotating shaft; 51. Bearing; 52. Rotary drive plate; 53. Mating pull rod; 6. Movable carrier block; 61. Movable carrier hole; 62. Limiting carrier rod; 63. Connecting spring; 64. Movable connecting rod; 65. Bearing top plate; 66. Mating connecting plate; 67. Support end plate; 68. Loading plate strip; 69. Connecting lock column; 7. Channel sealing plate; 71. Conical slide table; 72. Material drop channel; 73. Mounting plate strip; 74. Mounting through hole; 75. Mating carrier plate; 76. Insertion through hole; 8. Drive bar; 81. Mounting insertion rod; 82. Mating spring; 83. Mating push rod; 84. Positioning carrier block; 85. Positioning mating rod; 9. Receiving bucket. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] This invention provides a technical solution:

[0049] like Figure 1 and Figure 2 As shown, an apparatus for wet preparation of low bulk density copper powder includes a preparation box 1. A drain pipe 11 is fixedly installed at one end of the preparation box 1. An outwardly protruding support frame 12 is fixedly installed on the upper side of the preparation box 1 above the drain pipe 11. A driving assembly is installed on the outwardly protruding support frame 12. A movable filter mechanism is installed on the driving assembly, and the driving assembly moves with the movable filter mechanism to filter the liquid and concentrate the copper particles. The driving assembly is also provided with a connection locking mechanism to fix the movable filter mechanism to the driving assembly. A movable discharge assembly is also installed on the lower side of the other end of the preparation box 1. The movable discharge assembly is unlocked during the movement of the driving assembly to complete the centralized discharge.

[0050] like Figure 5 and Figure 6 As shown, a box bottom plate 10 is fixedly installed at the lower end of the preparation box 1. An alignment groove 101 is provided on the box bottom plate 10. Supporting frames 14 are also symmetrically fixed on both sides of the other end of the preparation box 1 opposite to the protruding support frame 12. Supporting strips 15 are also symmetrically fixed on both sides of the end of the preparation box 1 away from the protruding support frame 12.

[0051] like Figure 1 , Figure 4 and Figure 6 As shown, the support strip 15 is provided with a support channel 16 and a connecting hole 17. The support strip 15 supports the movable discharge assembly. The lower side of the preparation box 1 away from the protruding support frame 12 is provided with a discharge channel 18. A sealing ring gasket 19 is provided on the end face where the lower port of the discharge channel 18 is located.

[0052] like Figure 5 and Figure 7 As shown, the drive assembly includes an electric telescopic rod 13, a carrying strip 2, and a fitting and sealing plate 4. The carrying strip 2 is fixedly installed on the electric telescopic rod 13. Contact plates 21 are symmetrically fixed on both sides of the carrying strip 2. The contact plates 21 are provided with bearing insertion holes 22. An extension block 23 is fixedly installed on the contact plates 21. The extension block 23 is provided with a connection insertion hole 24. Furthermore, a mating strip 25 is fixedly installed on the contact plates 21 below the extension block 23.

[0053] like Figure 7 As shown, mounting holes 26 are symmetrically provided on the carrying strip 2, and support plates 27 are symmetrically fixed on the carrying strip 2 between the mounting holes 26. Limiting through holes 28 are provided on the support plates 27.

[0054] like Figure 1 and Figure 8 As shown, a fitting and sealing plate 4 is installed on the carrying strip 2. Side carrier strips 41 are symmetrically fixed on both sides of the upper end of the fitting and sealing plate 4. An upper drive push rod 42 is hinged to the side carrier strip 41. The other end of the upper drive push rod 42 is hinged to the support frame 14. A connecting rod 43 is fixedly installed at the lower end of the side carrier strip 41. The connecting rod 43 is inserted into the connecting hole 24. A bearing base block 44 is fixedly installed at the lower end of the connecting rod 43. An upward push mating rod 45 is fixedly installed on the bearing base block 44.

[0055] like Figure 1 , Figure 2 and Figure 8 As shown, the movable filter mechanism is a movable filter plate 3. Connecting lock holes 31 are symmetrically opened on both sides of the movable filter plate 3. When the movable filter plate 3 is installed on the carrying strip 2, it is located between the carrying strip 2 and the sealing plate 4, and both ends of the movable filter plate 3 are in contact with the carrying strip 2 and the sealing plate 4 respectively.

[0056] In addition, the two sides of the movable filter plate 3 and the sealing plate 4 are in contact with the inner wall of the preparation box 1, the lower end face of the movable filter plate 3 and the sealing plate 4 are in contact with the inner bottom surface of the preparation box 1, and when the movable filter plate 3 is installed on the carrying strip 2, the carrying insertion hole 22 is aligned with the connecting lock hole 31.

[0057] like Figure 1 , Figure 3 and Figure 9 As shown, the connecting locking mechanism includes a rotating shaft 5 and a movable block 6. A bearing 51 is sleeved on the rotating shaft 5 and installed in the mounting hole 26. A rotating drive plate 52 is fixedly installed on one side of the rotating shaft 5, and a matching pull rod 53 is fixedly installed on the other side. The matching pull rod 53 is connected to the movable block 6. The movable block 6 has a movable mounting hole 61 and a limit rod 62 is fixedly installed on the movable block 6. The limit rod 62 is inserted into the limit through hole 28, and a connecting spring 63 is sleeved on the limit rod 62. The two ends of the connecting spring 63 are fixed on the support plate 27 and the movable block 6, respectively.

[0058] like Figure 9 As shown, a movable connecting rod 64 is inserted into the movable loading hole 61. A bearing top plate 65 is fixedly installed at the upper end of the movable connecting rod 64. A mating connecting plate 66 is fixedly installed on the bearing top plate 65. The lower end of the mating connecting plate 66 is hinged to the mating tie rod 53. A support end plate 67 is fixedly installed at one end of the movable block 6. A load-bearing strip 68 is fixedly installed on the support end plate 67. A connecting locking pin 69 is fixedly installed on the load-bearing strip 68. The connecting locking pin 69 is inserted into the bearing insertion hole 22.

[0059] When the connecting locking pin 69 achieves a fixed connection between the carrying strip 2 and the movable filter plate 3, it is inserted into the connecting locking hole 31.

[0060] like Figure 2 , Figure 4 and Figure 10 As shown, the movable discharge assembly includes a channel sealing plate 7, a drive bar 8, and a receiving bucket 9. The channel sealing plate 7 is located below the discharge channel 18 and is in contact with the sealing ring gasket 19. A conical slide 71 is fixedly installed on the channel sealing plate 7, and a discharge channel 72 is opened on the channel sealing plate 7. The discharge channel 72 is located around the conical slide 71, and mounting strips 73 are symmetrically fixed on both sides of the channel sealing plate 7. The mounting strips 73 are inserted into the bearing channel 16. Before the channel sealing plate 7 moves down, it blocks the discharge channel 18. At this time, the conical slide 71 is inserted into the discharge channel 18.

[0061] like Figure 2 , Figure 4 and Figure 10As shown, the upper end of the mounting strip 73 has a mounting through hole 74, and a mating carrier plate 75 is fixedly installed thereon. The mating carrier plate 75 has an insertion through hole 76. A drive strip 8 is mounted on the mounting strip 73, and a mounting rod 81 is fixedly installed on the drive strip 8. The mounting rod 81 is inserted into the mounting through hole 74, and a mating spring 82 is sleeved on the mounting rod 81. The two ends of the mating spring 82 are fixed to the mounting strip 73 and the drive strip 8, respectively. A mating push rod 83 is hinged to the drive strip 8, and a positioning block 84 is hinged to the other end of the mating push rod 83. A positioning mating rod 85 is fixedly installed on the positioning block 84, and the positioning mating rod 85 is inserted into the insertion through hole 76. When the positioning mating rod 85 plays a role in fixing the channel sealing plate 7, it is inserted into the mating connecting hole 17. The receiving bucket 9 is inserted into the alignment groove 101, and the receiving bucket 9 is located directly below the discharge channel 18.

[0062] During the preparation of copper powder, the reaction solution is added to the space of the preparation chamber 1 between the sealing plate 4 and the support frame 14. After the reaction is complete, the electric telescopic rod 13 is activated, which moves the carrying strip 2 towards the support frame 14. This causes the movable filter plate 3 and the sealing plate 4 to move synchronously. As the distance between the sealing plate 4 and the support frame 14 decreases during the movement, the upper drive rod 42 pushes the sealing plate 4 upward. This reduces the clogging of the filter holes on the movable filter plate 3, allowing the solution to pass through the movable filter plate 3 and be discharged from the drain pipe 11. Simultaneously, the movement of the movable filter plate 3 also compresses the copper powder. The space where the particles accumulate will eventually concentrate the copper particles on the upper side of the discharge channel 18. As the sealing plate 4 moves upward, the upward-pushing mating rod 45 will contact the rotary drive plate 52. Under the action of the upward-pushing mating rod 45, the rotary drive plate 52 will be pushed upward, which will drive the mating pull rod 53 to rotate downward. As the mating pull rod 53 rotates downward, it will drive the movable connecting rod 64 to move downward. At the same time, under the action of the mating pull rod 53, the movable carrier block 6 will move. As the movable carrier block 6 moves, it will drive the connecting locking pin 69 to move, so that the connecting locking pin 69 is no longer inserted into the connecting locking hole 31. In this way, the movable filter plate 3 loses the fixed connection with the carrying strip plate 2, making it convenient to remove it. The disassembly and cleaning process is simple, convenient, and quick, requiring no complicated installation or disassembly. Furthermore, as the carrying strip 2 moves, the mating strip 25 comes into contact with the drive strip 8. Under the action of the mating strip 25, the drive strip 8 is pushed towards the mounting strip 73. As the drive strip 8 moves, the mating push rod 83 pushes the positioning block 84, causing the positioning mating rod 85 on the positioning block 84 to disengage from the mating hole 17. This unlocks the channel sealing plate 7, allowing it to move downwards under the weight of the copper particles and the channel sealing plate 7, opening the discharge channel 18. The copper particles can then automatically fall into the receiving bucket 9. The automatic material collection and discharge system is now in operation. As the channel sealing plate 7 moves downward, the positioning rod 85 abuts against the carrying strip 15, and the spring 82 remains compressed. After the movable filter plate 3 is cleaned, it is reinserted between the carrying strip 2 and the sealing plate 4. Then, the electric telescopic rod 13 is activated to reset the carrying strip 2, thus achieving automatic fixed connection between the movable filter plate 3 and the carrying strip 2. The channel sealing plate 7 is pushed upward to close the discharge channel 18 again. When the positioning rod 85 aligns with the connecting hole 17, the driving strip 8 is reset under the action of the spring 82, allowing the positioning rod 85 to be reinserted into the connecting hole 17 to fix the channel sealing plate 7.

[0063] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for wet preparation of low bulk density copper powder, comprising a preparation chamber, wherein a drain pipe is fixedly provided at one end of the preparation chamber, characterized in that: An outwardly protruding support frame is fixedly installed on the preparation box on the upper side of the drain pipe, and a drive assembly is installed on the outwardly protruding support frame; The drive assembly includes an electric telescopic rod, a carrying strip, and a fitting sealing plate. The carrying strip is fixedly installed on the electric telescopic rod, and contact plates are symmetrically fixed on both sides of the carrying strip. The contact carrier plate is provided with a bearing insertion hole, and an extension block is fixedly provided on the contact carrier plate. The extension block is provided with a connection insertion hole, and a mating strip is also fixedly provided on the contact carrier plate on the lower side of the extension block. The carrying strip is symmetrically provided with mounting holes, and a support plate is symmetrically fixed on the carrying strip between the mounting holes. The support plate is provided with a limit through hole. A fitting and sealing plate is installed on the carrying strip. Side strips are symmetrically fixed on both sides of the upper end of the fitting and sealing plate. An upper drive push rod is hinged on the side strip. The other end of the upper drive push rod is hinged to the support frame. A connecting rod is fixedly provided at the lower end of the side support bar. The connecting rod is inserted into the connecting hole. A bearing base block is fixedly provided at the lower end of the connecting rod. An upward pushing engagement rod is fixedly provided on the bearing base block. The drive assembly is equipped with a movable filter mechanism, and the drive assembly carries the movable filter mechanism to move and filter the liquid, while concentrating the copper particles. The movable filter mechanism is a movable filter plate. The movable filter plate has symmetrical connecting lock holes on both sides. When the movable filter plate is installed on the carrying strip, it is located between the carrying strip and the sealing plate, and both ends of the movable filter plate are in contact with the carrying strip and the sealing plate, respectively. The drive component is also equipped with a connection locking mechanism, which enables a fixed connection between the movable filter mechanism and the drive component. The connection locking mechanism includes a rotating shaft and a movable block. A bearing is sleeved on the rotating shaft and installed in the mounting hole. A rotating drive plate is fixedly installed on one side of the rotating shaft and a matching tie rod is fixedly installed on the other side. The matching tie rod is connected to the movable block. The movable block has a movable mounting hole, and a limiting rod is fixedly installed on the movable block. The limiting rod is inserted into the limiting through hole, and a connecting spring is sleeved on the limiting rod. A movable connecting rod is inserted into the movable mounting hole. A bearing top plate is fixedly installed at the upper end of the movable connecting rod. A matching connecting plate is fixedly installed on the bearing top plate. The lower end of the matching connecting plate is hinged to the matching tie rod. A support end plate is fixedly provided at one end of the movable block, a load-bearing strip is fixedly provided on the support end plate, a connecting locking pin is fixedly provided on the load-bearing strip, and the connecting locking pin is inserted into the load-bearing socket. A movable discharge assembly is also installed on the lower side of the other end of the preparation box. The drive assembly unlocks the movable discharge assembly during the movement of the drive assembly, thus completing the centralized discharge.

2. The apparatus for wet preparation of low bulk density copper powder according to claim 1, characterized in that: The lower end of the preparation box is fixedly provided with a box bottom plate, and the box bottom plate is provided with an alignment groove; On the other side of the preparation box opposite to the convex support frame, there are also symmetrically fixed support frames on both sides, and on the other side of the preparation box away from the convex support frame, there are also symmetrically fixed support blocks on both sides.

3. The apparatus for wet preparation of low bulk density copper powder according to claim 2, characterized in that: The support strip has a support channel and a connecting hole, which supports the movable material discharge assembly. A discharge channel is provided on the lower side of the preparation box away from the protruding support frame, and a sealing ring gasket is provided on the end face where the lower port of the discharge channel is located.

4. The apparatus for wet preparation of low bulk density copper powder according to claim 3, characterized in that: The movable discharge assembly includes a channel sealing plate, a drive bar, and a receiving bucket. The channel sealing plate is located below the discharge channel and is in contact with the sealing ring gasket. A conical slide is fixedly installed on the channel sealing plate, and a material discharge channel is opened on the channel sealing plate. The material discharge channel is located around the conical slide, and mounting strips are symmetrically fixed on both sides of the channel sealing plate. The mounting strips are inserted into the bearing channel. The upper end of the mounting strip is provided with a mounting through hole, and a mating carrier plate is also fixedly provided thereon, wherein the mating carrier plate is provided with an insertion through hole; A drive bar is installed on the mounting strip, and a mounting rod is fixedly installed on the drive bar. The mounting rod is inserted into the mounting through hole, and a matching spring is sleeved on the mounting rod. A matching push rod is hinged on the drive bar, and a positioning block is hinged to the other end of the matching push rod. A positioning matching rod is fixedly installed on the positioning block, and the positioning matching rod is inserted into the insertion through hole. The receiving bucket is inserted into the alignment groove, and the receiving bucket is located directly below the discharge channel.

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