A processing device for preventing agglomeration of sintered neodymium-iron-boron powder

Abstract

This invention relates to a processing device for anti-agglomeration sintered NdFeB powder, and pertains to the field of NdFeB powder processing technology. It includes a crushing seat and a classifying wheel. The crushing seat contains a classifying wheel, and a fixed wheel is fixed to the inner wall of the crushing seat. A cleaning component is installed within the fixed wheel. A drive shaft is rotatably mounted at the bottom of the crushing seat, and collecting and lifting components are installed at both ends of the drive shaft. This invention, through the crushing seat, drive shaft, and collecting and lifting components, gathers coarse particles settled at the bottom of the crushing seat, then guides the material directionally, smoothly conveying it to the lifting seat. The lifting seat receives the material and lifts it upwards, precisely delivering the coarse particles into the working area of ​​the grinding nozzle. This allows the coarse material to re-participate in the airflow grinding process, improving the efficiency and thoroughness of secondary grinding. The particles are repeatedly impacted and ground by the airflow, ensuring uniform particle size of the NdFeB powder and improving overall processing efficiency and finished powder quality.

Description

Technical Field

[0001] This invention relates to the field of NdFeB powder processing technology, specifically to a processing device for anti-agglomeration sintering NdFeB powder. Background Technology

[0002] In everyday electrical equipment, transformers and magnetic cores are core electromagnetic components. Transformers rely on magnetic cores to convert and transmit electrical energy, while magnetic cores control the direction of the magnetic field and the output of magnetic force. The efficiency and durability of both depend entirely on the quality of the supporting permanent magnet materials. Neodymium iron boron (NdFeB), as a high-performance permanent magnet material, naturally becomes the core substrate for manufacturing these components. Consequently, the corresponding powder processing equipment becomes a key piece of equipment in material production. Conventional crushing equipment often produces uneven particle size, powder agglomeration, and easily introduces impurities that damage the material, failing to meet the requirements of refined production. Therefore, a targeted NdFeB powder processing device is needed. This led to the development of fluidized bed air jet mills, which are the main equipment for processing ultrafine powders. They rely on high-speed airflow to complete the crushing operation. Dry compressed air is generated into a supersonic airflow through nozzles, which makes the raw materials fluidized and suspended inside the chamber. The material particles collide violently with each other, rub against each other and shear each other, and are gradually ground into fine powder. Then, the powder is screened and sorted by the top classifying wheel. The ultrafine powder that meets the standard is collected in a unified manner, while the coarse particles that do not meet the standard fall back into the chamber for repeated grinding. The neodymium iron boron powder that has been refined by the device can be pressed and sintered to form qualified magnets, which can be successfully applied in transformers and various magnetic core poles, effectively ensuring the stable and reliable operation of electromagnetic equipment.

[0003] However, in the actual powder processing process, the existing NdFeB fluidized bed air jet mill has several drawbacks. Due to the high viscosity of NdFeB fine powder, it tends to adhere and accumulate on the outer side of the classifying wheel during operation. This accumulated powder can obstruct the screening path, interfere with the normal screening and separation of particles of different sizes, and reduce the accuracy of the classification operation. At the same time, the coarse material that is screened out does not have a fixed guide and its falling trajectory is chaotic. It tends to accumulate at the bottom of the grinding chamber and is difficult to disperse evenly in the grinding station for further processing, which may result in a low secondary grinding rate of the material.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a processing device for anti-agglomeration sintering NdFeB powder, so as to solve the problems mentioned in the background art of fine powder adhering and accumulating on the outside of the classifying wheel and coarse material falling and accumulating at the bottom of the crushing chamber. The technical solution of this invention provides a solution that is significantly different from the existing technology, which is too simplistic.

[0006] To achieve the above object, the present invention provides the following technical solution: A processing device for anti-agglomeration sintered neodymium iron boron powder, including a crushing seat and a grading wheel. The grading wheel is installed in the crushing seat. A fixed wheel is fixed on the inner wall of the crushing seat, and a cleaning component is arranged inside the fixed wheel. A driving shaft is rotatably installed at the bottom of the crushing seat, and collection and lifting components are arranged at both ends of the driving shaft;

[0007] The collection and lifting components include a driving gear fixed to the upper end of the driving shaft and a rotating disk fixed to the lower end of the driving shaft. A driving tooth ring is arranged on the surface of the rotating disk. It also includes a guiding plate rotatably installed on the inner wall of the crushing seat. A transmission tooth ring is fixed to the bottom of the guiding plate. It also includes a moving seat slidably installed in the crushing seat. An elastic stretching ring is arranged on the side wall of the moving seat. A second lifting rod is rotatably installed at the bottom of the moving seat. A lifting seat is fixed in the crushing seat. A transmission rod is rotatably installed on the surface of the lifting seat. A first lifting rod is fixed to one end of the transmission rod, and a transmission gear is fixed to the other end of the transmission rod. A reset seat is installed on the surface of the lifting seat, and a reset coil spring is arranged inside the reset seat.

[0008] Preferably, the driving shaft is externally connected to a motor, and the driving gear meshes with the transmission tooth ring.

[0009] Preferably, the guiding plate is designed in a spiral shape, and the bottom of the guiding plate closely adheres to the inner bottom surface of the crushing seat.

[0010] Preferably, the moving seat is connected to the inner bottom wall of the crushing seat through an elastic stretching ring, and the second lifting rod is rotatably connected to the first lifting rod.

[0011] Preferably, the transmission gear meshes with the driving tooth ring, and the transmission gear is connected to the reset seat through a reset coil spring.

[0012] Preferably, the cleaning component includes a rotating rod rotatably installed inside the fixed wheel. A transmission connecting rod is rotatably installed on the surface of the rotating rod. A knocking rod is rotatably connected to the bottom of the transmission connecting rod. It also includes a fixed seat fixed to the bottom of the fixed wheel, and a knocking seat is slidably limited inside the fixed seat.

[0013] Preferably, the grading wheel is rotatably connected to the fixed wheel, the grading wheel is fixed to the rotating rod, and the cross-section of the rotating rod is designed in a "ji" shape.

[0014] Preferably, the knocking rod is slidably installed inside the knocking seat, a knocking spring is arranged on the surface of the knocking rod, and the knocking rod is connected to the knocking seat through the knocking spring.

[0015] Preferably, a reset spring is arranged on the surface of the knocking seat, and the knocking seat is connected to the fixed seat through the reset spring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, through the setting of a crushing seat, a drive shaft, and a collection and lifting assembly, uses a motor to drive the drive shaft to rotate, which in turn drives the collection and lifting assembly to operate synchronously. This process gathers the coarse particles that have settled at the bottom of the crushing seat, and then guides the material in a directional manner, smoothly conveying it to the lifting seat. The lifting seat receives the material and lifts it upward, precisely sending the coarse particles into the working area of ​​the grinding nozzle. This allows the coarse material to re-participate in the airflow crushing process, improving the efficiency and thoroughness of the secondary grinding of the material. The particles are repeatedly impacted and ground by the airflow, improving the overall processing stability and the quality of the finished product.

[0018] 2. This invention, through the setting of a grading wheel, a fixed wheel, and a cleaning component, will drive the cleaning component to move synchronously during normal operation of the equipment. The cleaning component will regularly tap the side walls of the grading wheel and the fixed wheel. Relying on the vibration generated by the tapping, the NdFeB fine powder that is sticky and attached to the surface of the grading wheel will be shaken off, solving the problem of powder accumulation on the outside of the wheel. There is no need for manual shutdown for cleaning, keeping the surface of the grading wheel clean and the screening channel unobstructed. It avoids the accumulation of powder from blocking the passage and interfering with particle screening, improving the accuracy and stability of the grading operation, reducing the frequency of equipment maintenance and downtime, ensuring continuous operation of the production line, preventing the attached powder from clumping and mixing into the finished product, and ensuring the uniform particle size of the NdFeB powder. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the present invention;

[0021] Figure 3 This is a cross-sectional view of the fixed wheel of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the cleaning assembly of the present invention;

[0023] Figure 5 This is a cross-sectional view of the material cleaning assembly of the present invention;

[0024] Figure 6 This is a schematic diagram showing the disassembled structure of the material cleaning component of the present invention;

[0025] Figure 7 This is a cross-sectional view of the crushing seat of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the lifting component of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the collection and lifting component from another perspective of the present invention;

[0028] Figure 10 This is a schematic diagram of the transmission gear, reset seat, and reset coil spring of the present invention.

[0029] In the diagram: 1. Crushing seat; 2. Grading wheel; 201. Fixed wheel; 202. Fixed seat; 3. Rotating rod; 301. Transmission connecting rod; 302. Striking rod; 303. Striking seat; 304. Striking spring; 305. Return spring; 4. Drive shaft; 401. Rotating disk; 402. Drive gear; 403. Drive gear ring; 5. Guide plate; 501. Transmission gear ring; 6. Moving seat; 601. Elastic tension ring; 7. Lifting seat; 701. Transmission rod; 702. First lifting rod; 703. Second lifting rod; 704. Transmission gear; 8. Return seat; 801. Return coil spring. Detailed Implementation

[0030] Please see Figures 1-10 The present invention provides a technical solution: a processing device for anti-agglomeration sintered NdFeB powder, comprising a crushing seat 1 and a classifying wheel 2. The classifying wheel 2 is installed inside the crushing seat 1, and a fixed wheel 201 is fixed on the inner wall of the crushing seat 1. A cleaning component is provided inside the fixed wheel 201. The fixed wheel 201 provides a stable installation reference for the cleaning component and remains stationary. The cleaning component automatically removes the sticky fine powder adhering to the surface of the classifying wheel 2 through mechanical vibration. A drive shaft 4 is rotatably installed at the bottom of the crushing seat 1, and collection and lifting components are provided at both ends of the drive shaft 4.

[0031] The collecting and lifting assembly includes a drive gear 402 fixed to the upper end of the drive shaft 4 and a rotating disk 401 fixed to the lower end of the drive shaft 4. A drive gear ring 403 is provided on the surface of the rotating disk 401. It also includes a guide plate 5 rotatably mounted on the inner wall of the crushing seat 1. The guide plate 5 fits against the inner bottom surface of the crushing seat 1 and can comprehensively collect coarse materials that are concentrated and piled up in various parts of the bottom surface and orderly collect them towards the center of the bottom surface. A transmission gear ring 501 is fixed at the bottom of the guide plate 5. It also includes a movable seat 6 slidably mounted in the crushing seat 1. An elastic tension ring 601 is provided on the side wall of the movable seat 6. When the movable seat 6 is lifted upward, the elastic tension ring 601 deforms by itself. To compensate for the gaps caused by displacement and prevent fine powder from seeping into the device gaps, a second lifting rod 703 is rotatably installed at the bottom of the moving seat 6. A lifting seat 7 is fixed inside the crushing seat 1. A transmission rod 701 is rotatably installed on the surface of the lifting seat 7. A first lifting rod 702 is fixed at one end of the transmission rod 701, and a transmission gear 704 is fixed at the other end of the transmission rod 701. A reset seat 8 is installed on the surface of the lifting seat 7. A reset coil spring 801 is provided inside the reset seat 8. When the drive gear ring 403 rotates and disengages from the transmission gear 704, the reset coil spring 801 releases its elastic tension, causing the transmission gear 704 and the collecting and lifting assembly to automatically fall back to their reset positions.

[0032] In one embodiment of the present invention, the drive shaft 4 is externally connected to a motor, which serves as a power source and directly drives the drive shaft 4 to rotate at a constant speed. The drive gear 402 meshes with the transmission gear ring 501. When the drive gear 402 rotates with the drive shaft 4, it synchronously drives the transmission gear ring 501 to rotate at a constant speed, thereby driving the guide plate 5 connected to the transmission gear ring 501 to rotate synchronously.

[0033] As one embodiment of the present invention, the guide plate 5 is spirally designed. The bottom of the guide plate 5 is closely attached to the inner bottom surface of the crushing seat 1. When the guide plate 5 rotates at a constant speed with the transmission gear ring 501, the spiral plate surface will generate a directional pushing force based on the rotation. The coarse material that was originally scattered at various parts of the cavity bottom will be pushed steadily and orderly towards the center position inside the crushing seat 1 along the direction of the spiral curved surface, and finally gather on the surface of the moving seat 6.

[0034] In one embodiment of the present invention, the movable seat 6 is connected to the inner wall of the bottom of the crushing seat 1 via an elastic tension ring 601. The elastic tension ring 601 can generate elastic deformation synchronously with the displacement of the movable seat 6, filling the gap formed between the movable seat 6 and the inner wall of the bottom of the crushing seat 1. The second lifting rod 703 is rotatably connected to the first lifting rod 702. The first lifting rod 702 rotates under the drive of the transmission rod 701, driving the second lifting rod 703 to push the movable seat 6 to complete the lifting action.

[0035] In one embodiment of the present invention, the transmission gear 704 meshes with the drive gear ring 403, which rotates synchronously with the rotating disk 401. During operation, the drive gear ring 403 periodically meshes with the transmission gear 704. The transmission gear 704 is connected to the reset seat 8 through the reset coil spring 801. When the drive gear ring 403 and the transmission gear 704 are in the meshing state, the drive gear ring 403 drives the transmission gear 704 to rotate synchronously, and the drive transmission rod 701 and the first lifting rod 702 are linked to provide power for the lifting of the moving seat 6. After the drive gear ring 403 rotates to the disengaged position, the transmission gear 704 loses the external rotational driving force, and the reset coil spring 801, which has previously generated deformation and stored energy with the rotation, releases the elastic tension, driving the transmission gear 704 to rotate back and reset.

[0036] In one embodiment of the present invention, the cleaning assembly includes a rotating rod 3 rotatably installed inside a fixed wheel 201, a transmission connecting rod 301 rotatably installed on the surface of the rotating rod 3, and a striking rod 302 rotatably connected to the bottom of the transmission connecting rod 301. After the power is transmitted through the transmission connecting rod 301, the striking rod 302 is driven to perform reciprocating linear motion. The assembly also includes a fixed seat 202 fixed to the bottom of the fixed wheel 201, and a striking seat 303 is slidably limited inside the fixed seat 202. The striking rod 302 pushes the striking seat 303 to move, repeatedly impacting the surface of the classifying wheel 2, and shaking off the attached fine powder by vibration.

[0037] As an implementation manner of the present invention, the grading wheel 2 is rotatably connected to the fixed wheel 201. The fixed wheel 201 remains stationary to provide support for the grading wheel 2 and the rotating rod 3. The grading wheel 2 is fixedly connected to the rotating rod 3. The operating power of the grading wheel 2 can directly drive the rotating rod 3 to work. The cross-section of the rotating rod 3 is designed in a "ji" shape. When the rotating rod 3 rotates, it can drive the transmission connecting rod 301 to perform a reciprocating linear motion.

[0038] As an implementation manner of the present invention, the knocking rod 302 is slidably installed in the knocking seat 303. The knocking seat 303 guides and limits the knocking rod 302. A knocking spring 304 is arranged on the surface of the knocking rod 302. The knocking rod 302 is connected to the knocking seat 303 through the knocking spring 304. When the transmission connecting rod 301 drives the knocking rod 302 to move forward, the knocking rod 302 will gradually compress the knocking spring 304, so that the knocking spring 304 accumulates elastic potential energy. When the knocking rod 302 retreats, the knocking spring 304 releases the elastic potential energy to enhance the vibration force of the knocking.

[0039] As an implementation manner of the present invention, a return spring 305 is arranged on the surface of the knocking seat 303. The knocking seat 303 is connected to the fixed seat 202 through the return spring 305. When the knocking rod 302 is driven by power to push the knocking seat 303 to slide forward and complete the knocking action, the knocking seat 303 will synchronously pull the return spring 305, causing the return spring 305 to undergo tensile deformation and store elastic potential energy. When a single knocking action ends, the return spring 305 in the tensile state will quickly release the elastic potential energy, pulling the knocking seat 303 to reset smoothly to prepare for the next round of knocking operation.

[0040] Working principle: When using the processing device for anti-aggregation sintered NdFeB powder, the raw material powder is first conveyed to the inside of the crushing seat 1 through the feeding port. The dry compressed air introduced from the outside is accelerated through the nozzle to form a strong supersonic airflow, making the powder inside the crushing seat 1 maintain a fluidized suspension state as a whole. The powder particles in the suspension state continuously collide at high speed, rub against each other and shear, and the large particle materials are gradually ground and refined into fine powders. The refined powders are conveyed upward, and the particle size screening and sorting work are completed by the grading wheel 2 at the top. While the grading wheel 2 rotates for screening, it drives the rotating rod 3 connected to its end to rotate synchronously. The rotating rod 3 continuously rotates inside the stationary wheel 201 that remains stationary. Since the rotating rod 3 adopts a "zigzag" design structure, the rotating rod 3 will drive the drive connecting rod 301 rotationally assembled on its surface during the rotation process, and then pull the knocking rod 302 to perform a reciprocating linear motion. The knocking rod 302 is slidably installed in the knocking seat 303, and the knocking seat 303 is limit-slidably installed in the fixed seat 202. When the knocking rod 302 moves, it squeezes the knocking spring 304 and pushes the knocking seat 303 to perform a reciprocating movement synchronously. While the knocking seat 303 is displaced by the knocking rod 302, the return spring 305 further provides the return power. The knocking seat 303 continuously knocks on the side walls of the grading wheel 2 and the fixed seat 202. Relying on the vibration generated by the knocking, the NdFeB fine powder adhering to the surface of the grading wheel 2 due to viscosity is shaken off, avoiding the influence of powder accumulation on the screening effect and ensuring the smooth progress of the grading operation;

[0041] The coarse materials separated by the grading wheel 2 fall back naturally. One part directly enters the working area of the nozzle for secondary processing, and the other part settles and falls to the bottom of the crushing seat 1. The motor drives the main shaft 4 to rotate, and the main shaft 4 synchronously drives the driving gear 402 fixed at the upper end and the rotating disk 401 at the lower end to rotate together. The driving gear 402 meshes with the transmission gear ring 501. When rotating, it drives the transmission gear ring 501 to drive the guide plate 5 to rotate synchronously. The guide plate 5 is designed in a spiral shape, and the guide plate 5 is closely attached to the inner bottom surface of the crushing seat 1. When the guide plate 5 rotates, it gradually collects the coarse materials accumulated at the bottom of the crushing seat 1 and guides them to the surface of the moving seat 6 located at the center;

[0042] A drive gear ring 403 on the surface of the rotating disk 401 meshes with a transmission gear 704. As the drive gear ring 403 rotates with the rotating disk 401, it drives the transmission gear 704 to rotate through the meshing. The transmission gear 704 is fixedly connected to the first lifting rod 702 through a transmission rod 701 rotatably mounted on the surface of the lifting seat 7. The transmission gear 704 drives the first lifting rod 702 to rotate synchronously. At the same time, the first lifting rod 702 is rotatably connected to the second lifting rod 703. The second lifting rod 703 is rotatably mounted at the bottom of the movable seat 6. The first lifting rod 702 and the second lifting rod 703 cooperate to drive each other. When the first lifting rod 702 rotates, it smoothly pushes the movable seat 6 to rise. The movable seat 6 then transports the coarse material collected on the surface to the nozzle working area to complete the secondary grinding process. This realizes the automatic collection and recycling of coarse material, improves the problem of local material accumulation, and enhances the overall processing efficiency and the quality of the finished powder product.

[0043] The movable seat 6 is connected to the inner bottom surface of the crushing seat 1 through the elastic tension ring 601. During the process of the movable seat 6 being lifted upward, the elastic tension ring 601 deforms due to its own elasticity, which promptly compensates for the displacement gap between the movable seat 6 and the inner bottom surface of the crushing seat 1, effectively preventing powder from penetrating into the internal structure of the device.

[0044] A reset spring 801 is installed inside the reset seat 8 fixed on the surface of the lifting seat 7. The reset spring 801 is connected to the transmission gear 704. The rotating disk 401 drives the drive gear ring 403 to mesh with the transmission gear 704. When the transmission gear 704 rotates, it compresses the reset spring 801. After the drive gear ring 403 rotates to the disengaged position, the transmission gear 704 loses the external rotational driving force. The reset spring 801, which has previously generated deformation and stored energy with the rotation, then releases its elastic tension, driving the transmission gear 704 to rotate in the opposite direction to reset. After disengaging from the meshing position with the transmission gear 704 and gradually moving away, the transmission gear 704 automatically resets under the tension of the reset spring 801, driving the moving seat 6 to fall downward. All components return to their initial state, ready to start the next complete processing cycle.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A processing device for anti-agglomeration sintered NdFeB powder, comprising a crushing seat (1) and a classifying wheel (2), characterized in that: A classification wheel (2) is installed inside the crushing base (1). A fixed wheel (201) is fixed to the inner wall of the crushing base (1). A material cleaning component is arranged inside the fixed wheel (201). A driving shaft (4) is rotatably installed at the bottom of the crushing base (1). Collection and lifting components are arranged at both ends of the driving shaft (4). The collection and lifting components include a driving gear (402) fixed to the upper end of the driving shaft (4), and a rotating disc (401) fixed to the lower end of the driving shaft (4). A driving tooth ring (403) is arranged on the surface of the rotating disc (401). It also includes a guiding plate (5) rotatably installed on the inner wall of the crushing base (1). A transmission tooth ring (501) is fixed to the bottom of the guiding plate (5). It also includes a moving seat (6) slidably installed inside the crushing base (1). An elastic stretching ring (601) is arranged on the side wall of the moving seat (6). A second lifting rod (703) is rotatably installed at the bottom of the moving seat (6). A lifting seat (7) is fixed inside the crushing base (1). A transmission rod (701) is rotatably installed on the surface of the lifting seat (7). A first lifting rod (702) is fixed to one end of the transmission rod (701). A transmission gear (704) is fixed to the other end of the transmission rod (701). A reset seat (8) is installed on the surface of the lifting seat (7). A reset coil spring (801) is arranged inside the reset seat (8).

2. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 1, characterized in that: The driving shaft (4) is externally connected to a motor. The driving gear (402) meshes with the transmission tooth ring (501).

3. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 1, characterized in that: The guiding plate (5) is designed in a spiral shape. The bottom of the guiding plate (5) closely adheres to the inner bottom surface of the crushing base (1).

4. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 1, characterized in that: The moving seat (6) is connected to the inner bottom wall of the crushing base (1) through the elastic stretching ring (601). The second lifting rod (703) is rotatably connected to the first lifting rod (702).

5. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 1, characterized in that: The transmission gear (704) meshes with the driving tooth ring (403). The transmission gear (704) is connected to the reset seat (8) through the reset coil spring (801).

6. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 1, characterized in that: The material cleaning component includes a rotating rod (3) rotatably installed inside the fixed wheel (201). A transmission connecting rod (301) is rotatably installed on the surface of the rotating rod (3). A knocking rod (302) is rotatably connected to the bottom of the transmission connecting rod (301). It also includes a fixed seat (202) fixed to the bottom of the fixed wheel (201). A knocking seat (303) is limited and slidably installed inside the fixed seat (202).

7. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 6, characterized in that: The classification wheel (2) is rotatably connected to the fixed wheel (201). The classification wheel (2) is fixedly connected to the rotating rod (3). The cross-section of the rotating rod (3) is designed in a "ji" shape.

8. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 6, characterized in that: The knocking rod (302) is slidably installed inside the knocking seat (303). A knocking spring (304) is arranged on the surface of the knocking rod (302). The knocking rod (302) is connected to the knocking seat (303) through the knocking spring (304).

9. The processing apparatus for anti-agglomeration sintering NdFeB powder according to claim 6, characterized in that: A reset spring (305) is arranged on the surface of the knocking seat (303). The knocking seat (303) is connected to the fixed seat (202) through the reset spring (305).

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