Grinding equipment for manganese zinc ferrite powder

By introducing adjustment and cleaning components into the manganese-zinc ferrite powder grinding equipment, the problem of the non-adjustable distance between the grinding roller and the grinding disc was solved, achieving a highly efficient and uniform grinding process and improving grinding accuracy and output quality.

CN121695986AInactive Publication Date: 2026-03-20HAIAN AOSHI AUTOMOTIVE MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-03-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing manganese-zinc ferrite powder grinding equipment cannot adjust the distance between the grinding roller and the grinding disc, resulting in insufficient grinding of materials of different particle sizes, low grinding efficiency, and easy adhesion of materials to the surface of the grinding roller, affecting uniformity.

Method used

A grinding device for manganese-zinc ferrite powder was designed, comprising a first grinding mechanism, a cleaning component, and an adjustment component. The distance between the grinding roller and the grinding disc is adjusted by a hydraulic telescopic rod, and a cleaning brush roller is provided to clean the surface of the grinding roller in real time. At the same time, a transmission component, a material feeding component, and a smoothing component are set to ensure uniform material distribution and grinding accuracy.

Benefits of technology

It achieves efficient grinding of materials of different particle sizes, prevents material adhesion, improves grinding accuracy and uniformity, and ensures stable output quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to manganese zinc ferrite powder grinding equipment which comprises a box body, a first grinding mechanism, a second grinding mechanism and a discharging mechanism are installed on the box body, the manganese zinc ferrite powder grinding equipment is provided with the first grinding mechanism, and a first grinding assembly, a cleaning assembly and an adjusting assembly are arranged in the first grinding mechanism; a first driving motor in the first grinding assembly drives a grinding roller to grind materials, in the grinding process of the grinding roller, through meshing transmission of a second gear and a first gear, a cleaning brush roller rotates synchronously, the surface of the grinding roller is cleaned in real time, and the situation that the grinding precision is affected by material adhesion is prevented; the hydraulic telescopic rod pushes the movable seat to rotate in the bearing seat through the convex shafts installed on the two sides, so that the limiting columns installed on the two sides of the movable seat slide along the limiting grooves in the limiting plates, stable adjustment of the angle of the movable seat is achieved, the gap between the grinding roller and the grinding disc is accurately controlled, and the grinding requirements of different particle sizes are met.
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Description

Technical Field

[0001] This invention relates to the field of manganese-zinc ferrite powder processing technology, and in particular to a grinding device for manganese-zinc ferrite powder. Background Technology

[0002] Manganese-zinc ferrite powder, as an important type of soft magnetic material, is widely used in electronic components, communication equipment, power transformers, new energy vehicle charging piles, and many other fields due to its high permeability, low coercivity, good high-frequency characteristics, and stability. In the production and processing of manganese-zinc ferrite powder, grinding is the core process that determines its particle size distribution, purity, and magnetic properties. Grinding precision and efficiency directly affect the performance and reliability of the end product.

[0003] In some existing grinding equipment for manganese-zinc ferrite powder, the grinding gap is mostly fixed during use, and the distance between the grinding roller and the grinding disc cannot be adjusted. This results in insufficient grinding of materials of different particle sizes, leading to low grinding efficiency, affecting product quality stability, and the grinding roller surface is prone to material adhesion during the grinding process. If not cleaned in time, it will affect the grinding uniformity. Summary of the Invention

[0004] To address the problems mentioned in the background section, the present invention provides a grinding apparatus for manganese-zinc ferrite powder.

[0005] The grinding equipment for manganese-zinc ferrite powder provided by this invention adopts the following technical solution:

[0006] A grinding device for manganese-zinc ferrite powder includes a housing. A first grinding mechanism, a second grinding mechanism, and a feeding mechanism are mounted on the housing. A dust collector is mounted on the back of the housing, and a suction pipe is mounted on the top of the dust collector. One end of the suction pipe extends into the housing, and a dust hood is mounted on the other end of the suction pipe, located on top of the second grinding mechanism. The first grinding mechanism includes a first grinding component, a cleaning component, and an adjusting component. The first grinding component includes symmetrical movable seats mounted inside openings at both ends of the housing. Symmetrical convex shafts are mounted on both sides of the movable seats. One end of each convex shaft is adapted to a bearing seat mounted on the inner wall of the opening. A mounting groove is provided at one end of the movable seat, and a first drive motor is mounted inside the mounting groove. One end of the output shaft of the first drive motor passes through a through hole in the movable seat and into the housing. A grinding roller is also connected to one end of the output shaft of the first drive motor. A first connecting seat is also mounted at the bottom of one end of the movable seat.

[0007] The cleaning assembly includes a sleeve installed at one end of the movable seat. One end of the sleeve extends into the interior of the housing and is fitted with a sealing rubber sleeve. The other end of the sealing rubber sleeve is installed against the inner wall of the openings at both ends of the housing. A housing is also fixedly installed at one end of the sleeve. The housing covers the outside of the grinding roller. Symmetrical shafts are rotatably installed in symmetrical shaft holes in the housing. One end of the shaft is connected to a cleaning brush roller, which is in contact with the outer wall of the grinding roller. Symmetrical first gears are also installed on the shafts. The first gears mesh with a second gear fixedly installed at one end of the output shaft of the first drive motor on one side of the grinding roller.

[0008] The adjustment assembly includes symmetrical hydraulic telescopic rods installed at the bottom of the movable seats at both ends of the housing. A first connecting block is installed at one end of each hydraulic telescopic rod, and the first connecting block is hinged to a first connecting seat installed at the bottom of one end of the movable seat. A second connecting block is installed at the other end of each hydraulic telescopic rod, and the second connecting block is hinged to a second connecting seat provided on a support base installed at the bottom of both ends of the housing. Symmetrical limiting posts are also installed on both sides of the movable seat, and one end of each limiting post slides in a limiting groove on a symmetrical limiting plate installed at the edge of the opening at both ends of the housing.

[0009] Preferably, the second grinding mechanism includes a fixed plate installed inside the housing, a support frame installed at the bottom of the fixed plate, a grinding disc disposed in a circular groove in the middle of the fixed plate, and the second grinding mechanism also includes a transmission component, a feeding component, and a smoothing component.

[0010] Preferably, the transmission assembly includes a second drive motor mounted on a support frame, a first transmission wheel mounted on the output shaft of the second drive motor, a transmission shaft mounted in a shaft hole provided on the support frame, a second transmission wheel mounted on one end of the transmission shaft, a transmission belt sleeved between the first transmission wheel and the second transmission wheel, and the other end of the transmission shaft connected to the bottom of the grinding disc.

[0011] Preferably, the feeding assembly includes a servo motor installed in a cavity inside the grinding disc, the output shaft of the servo motor passing through a through hole in the top of the grinding disc, a fixing ring being fitted on the output shaft of the servo motor, and a lever being installed on the fixing ring, the lever being in contact with the top of the grinding disc.

[0012] Preferably, the smoothing assembly includes two sets of symmetrical L-shaped support rods installed on the top of the fixed plate at the edge of the grinding disc. A movable rod is installed in a through hole on the L-shaped support rod. A limit block is provided at one end of the movable rod, and a smoothing block is connected to the other end of the movable rod. Several smoothing rods are installed at the bottom of the smoothing block, and a spring is connected to the top of the smoothing block. The other end of the spring is connected to the bottom of the L-shaped support rod.

[0013] Preferably, the feeding mechanism includes a feeding hopper installed on the top of the housing. Inside the housing, at the bottom of the feeding hopper, are installed a first rolling roller and a second rolling roller. A shaft at one end of the first rolling roller and the second rolling roller is connected to a bearing seat installed on the inner wall of one end of the housing. A shaft at the other end of the first rolling roller and the second rolling roller passes through a shaft hole opened on the inner wall of the other end of the housing and is equipped with a third gear and a fourth gear. The third gear and the fourth gear mesh with each other. One end of the shaft at the other end of the first rolling roller is also connected to the output shaft of a third drive motor on the top of a fixed seat installed on the side wall of one end of the housing. Inside the housing, at the bottom of the first rolling roller and the second rolling roller, is also installed a feeding hopper.

[0014] In summary, the present invention has the following beneficial technical effects:

[0015] 1. This invention provides a first grinding mechanism, which includes a first grinding component, a cleaning component, and an adjustment component. A first drive motor in the first grinding component drives a grinding roller to grind the material. During the grinding process, a second gear meshes with the first gear, causing a cleaning brush roller to rotate synchronously and clean the surface of the grinding roller in real time, preventing material adhesion and ensuring grinding accuracy. Simultaneously, a hydraulic telescopic rod in the adjustment component pushes a movable seat to rotate within a bearing seat via convex shafts mounted on both sides. This causes the limiting posts mounted on both sides of the movable seat to slide along the limiting grooves on the limiting plate, achieving stable adjustment of the movable seat angle. This precisely controls the gap between the grinding roller and the grinding disc, adapting to grinding requirements of different particle sizes.

[0016] 2. This invention includes a second grinding mechanism, which comprises a transmission component, a material feeding component, and a smoothing component. A second drive motor in the transmission component rotates the transmission shaft, transmitting power to the grinding disc, causing it to rotate. This allows the grinding disc and grinding roller to grind the material. During the rotation of the grinding disc, a servo motor in the material feeding component drives a lever to rotate, feeding the material into the arc-shaped grinding groove of the grinding disc. Simultaneously, during the rotation of the grinding disc, the smoothing component, via a spring, drives a smoothing block and a smoothing rod to dynamically smooth the material in the arc-shaped grinding groove of the grinding disc, ensuring consistent material thickness and effectively preventing material accumulation or uneven distribution. This further improves grinding precision and ensures stable output quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a grinding device for manganese-zinc ferrite powder according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the box in an embodiment of the present invention;

[0019] Figure 3This is a top cross-sectional view of the first grinding mechanism in an embodiment of the present invention;

[0020] Figure 4 This is an enlarged schematic diagram of the first grinding mechanism in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the cleaning group structure in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the second grinding mechanism in an embodiment of the present invention;

[0023] Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged view of the structure at point A;

[0024] Figure 8 This is a cross-sectional view of the feeding mechanism in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Movable seat; 3. Protruding shaft; 4. First drive motor; 5. Grinding roller; 6. First connecting seat; 7. Sleeve; 8. Sealing rubber sleeve; 9. Housing; 10. Cleaning brush roller; 11. First gear; 12. Second gear; 13. Hydraulic telescopic rod; 14. First connecting block; 15. Second connecting block; 16. Second connecting seat; 17. Limiting post; 18. Limiting plate; 19. Fixing plate; 20. Support frame; 21. Grinding disc; 22. 23. Second drive motor; 24. First transmission wheel; 25. Transmission shaft; 26. Second transmission wheel; 27. Transmission belt; 28. Servo motor; 29. ​​L-shaped support rod; 30. Movable rod; 31. Smoothing block; 32. Smoothing rod; 33. Spring; 34. Feed hopper; 35. First rolling roller; 36. Second rolling roller; 37. Third gear; 38. Fourth gear; 39. Third drive motor; 40. Dust collector; 41. Dust suction pipe; 42. Feed hopper. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 —8. The present invention will be described in further detail.

[0027] This invention discloses a grinding device for manganese-zinc ferrite powder, comprising a housing 1. A first grinding mechanism, a second grinding mechanism, and a feeding mechanism are mounted on the housing 1. A dust collector 40 is mounted on the back of the housing 1, and a suction pipe 41 is mounted on the top of the dust collector 40. One end of the suction pipe 41 extends into the interior of the housing 1, and a dust hood is mounted on the other end, located on top of the second grinding mechanism. The first grinding mechanism includes a first grinding component, a cleaning component, and an adjusting component. The first grinding component includes symmetrical movable seats 2 installed inside openings at both ends of the housing 1. Symmetrical convex shafts 3 are mounted on both sides of the movable seats 2. One end of each convex shaft 3 is adapted to a bearing seat mounted on the inner wall of the opening. A mounting groove is provided at one end of the movable seat 2, and a first driving motor is installed inside the mounting groove. The first drive motor 4 has one end of its output shaft passing through a through hole in the movable seat 2 and into the housing 1. A grinding roller 5 is also connected to one end of the first drive motor 4's output shaft. A first connecting seat 6 is also installed at the bottom of one end of the movable seat 2. The cleaning assembly includes a sleeve 7 installed at one end of the movable seat 2. One end of the sleeve 7 passes into the housing 1, and a sealing rubber sleeve 8 is installed at one end. The other end of the sealing rubber sleeve 8 is installed against the inner wall of the openings at both ends of the housing 1. A housing 9 is also fixedly installed at one end of the sleeve 7. The housing 9 covers the outside of the grinding roller 5. Symmetrical shafts are rotatably installed in symmetrical shaft holes in the housing 9. One end of each shaft is connected to a cleaning brush roller 10, which fits against the outer wall of the grinding roller 5. Symmetrical first teeth are also installed on the shafts. Wheel 11, first gear 11 meshes with second gear 12 fixedly installed at one end of the output shaft of first drive motor 4 on one side of grinding roller 5. The adjustment assembly includes symmetrical hydraulic telescopic rods 13 installed at the bottom of movable seats 2 at both ends of housing 1. A first connecting block 14 is installed at one end of hydraulic telescopic rod 13, and the first connecting block 14 is hinged to a first connecting seat 6 installed at the bottom of one end of movable seat 2. A second connecting block 15 is installed at the other end of hydraulic telescopic rod 13, and the second connecting block 15 is hinged to a second connecting seat 16 provided on the support base installed at the bottom of both ends of housing 1. Symmetrical limiting posts 17 are also installed on both sides of movable seat 2. One end of the limiting post 17 slides in the limiting groove on the symmetrical limiting plate 18 installed at the edge of the opening at both ends of housing 1, which is more... The description of the body is as follows: During grinding, the hydraulic telescopic rod 13 is driven, and the telescopic end of the hydraulic telescopic rod 13 drives the first connecting block 14 to move, thereby pushing the first connecting seat 6 installed at the bottom of one end of the movable seat 2. This causes the movable seat 2 to rotate in the bearing seat through the convex shafts 3 installed on both sides, so that the limiting posts 17 installed on both sides of the movable seat 2 slide along the limiting grooves on the limiting plate 18, realizing the stable adjustment of the angle of the movable seat 2. This, in turn, drives the adjustment of the distance between the grinding roller 5 and the second grinding mechanism to adapt to the grinding requirements of different particle sizes. The first drive motor 4 is started, and its output shaft drives the grinding roller 5 to rotate. During the grinding process of the grinding roller 5, the second gear 12 meshes with the first gear 11 to drive the cleaning brush roller 10 to rotate synchronously, cleaning the surface of the grinding roller 5 in real time.To prevent material adhesion from affecting grinding accuracy.

[0028] refer to Figure 2 , Figure 6 and Figure 7 The second grinding mechanism includes a fixed plate 19 installed inside the housing 1. A support frame 20 is installed at the bottom of the fixed plate 19. A grinding disc 21 is disposed in a circular groove in the middle of the fixed plate 19. The second grinding mechanism also includes a transmission assembly, a feeding assembly, and a smoothing assembly. The transmission assembly includes a second drive motor 22 installed on the support frame 20. A first transmission wheel 23 is installed on the output shaft of the second drive motor 22. A transmission shaft 24 is also installed in a shaft hole provided on the support frame 20. A second transmission wheel 25 is installed at one end of the transmission shaft 24. The first transmission wheel 23 and the second transmission wheel 25 are connected. A transmission belt 26 is fitted between the grinding discs 21 and the grinding disc 21. The other end of the transmission shaft 24 is connected to the bottom of the grinding disc 21. The feeding assembly includes a servo motor 27 installed in a cavity inside the grinding disc 21. The output shaft of the servo motor 27 passes through a through hole in the top of the grinding disc 21. A fixing ring is fitted on the output shaft of the servo motor 27, and a lever 28 is installed on the fixing ring. The lever 28 fits against the top of the grinding disc 21. The smoothing assembly includes two sets of symmetrical L-shaped support rods 29 installed on the top of the fixing plate 19 at the edge of the grinding disc 21. A movable rod 30 is installed in the through hole in the L-shaped support rod 29. A limit block is provided at one end of the movable rod 30, and a smoothing block 31 is connected to the other end of the movable rod 30. Several smoothing rods 32 are installed at the bottom of the smoothing block 31, and a spring 33 is connected to the top of the smoothing block 31. The other end of the spring 33 is connected to the bottom of the L-shaped support rod 29. More specifically, when grinding is performed, when the second drive motor 22 is started, the power is transmitted to the drive shaft 24 through the first transmission wheel 23, the transmission belt 26 and the second transmission wheel 25, so that the drive shaft 24 drives the grinding disc 21 to rotate, realizing continuous grinding of materials; at the same time, the servo motor 27 in the cavity inside the grinding disc 21 works. The rotating lever 28 moves the material on the surface of the grinding disc 21, causing it to be evenly distributed in the arc-shaped grinding groove of the grinding disc 21. This prevents material accumulation during the feeding process, ensuring a continuous and stable grinding process and improving grinding uniformity and efficiency. At the same time, during the rotation of the grinding disc 21, the two sets of L-shaped support rods 29 on the fixed plate 19 drive the smoothing block 31 and smoothing rod 32 via the spring 33 to dynamically smooth the material in the arc-shaped grinding groove of the grinding disc 21, keeping the material thickness consistent. This effectively prevents material accumulation or uneven distribution, further improving grinding precision and ensuring stable output quality.

[0029] refer to Figure 8The feeding mechanism includes a feed hopper 34 installed on the top of the housing 1. Inside the housing 1, at the bottom of the feed hopper 34, are installed a first rolling roller 35 and a second rolling roller 36. A shaft at one end of the first rolling roller 35 and the second rolling roller 36 is connected to a bearing seat installed on the inner wall of one end of the housing 1. A shaft at the other end of the first rolling roller 35 and the second rolling roller 36 passes through a shaft hole opened on the inner wall of the other end of the housing 1 and is fitted with a third gear 37 and a fourth gear 38. The third gear 37 and the fourth gear 38 mesh. One end of the shaft at the other end of the first rolling roller 35 is also connected to a third gear at the top of a fixed seat installed on the side wall of one end of the housing 1. The output shaft of the drive motor 39 is connected, and the inside of the housing 1 is also equipped with a feeding hopper 42 at the bottom of the first crushing roller 35 and the second crushing roller 36. More specifically, when the material is fed from the feeding hopper 34, the third drive motor 39 starts, and its power is transmitted to the first crushing roller 35 through the shaft. At the same time, the second crushing roller 36 is driven to rotate synchronously in the opposite direction through the meshing of the third gear 37 and the fourth gear 38. This allows the material to be initially crushed by the first crushing roller 35 and the second crushing roller 36 before entering the grinding process, thereby improving the subsequent grinding efficiency. The initially crushed material falls into the arc-shaped grinding groove of the grinding disc 21 through the feeding hopper 42.

[0030] The implementation principle of a grinding device for manganese-zinc ferrite powder according to an embodiment of the present invention is as follows: During use, the raw material is added from the feed hopper 34, the third drive motor 39 is started, and its power is transmitted to the first grinding roller 35 through the shaft. The third gear 37 meshes with the fourth gear 38, driving the second grinding roller 36 to rotate synchronously in opposite directions. This allows the material to be initially crushed by the first grinding roller 35 and the second grinding roller 36 before entering the grinding process. The crushed material falls onto the grinding disc 21 through the discharge hopper 42. At this time, when the second drive motor 22 starts, power is transmitted through the first transmission wheel 23... The transmission belt 26 and the second transmission wheel 25 transmit power to the transmission shaft 24, driving the grinding disc 21 to rotate. Simultaneously, the servo motor 27 inside the grinding disc 21 operates, driving the lever 28 to rotate and move the material on the surface of the grinding disc 21, ensuring the material is evenly distributed in the arc-shaped grinding groove of the grinding disc 21. At the same time, during the rotation of the grinding disc 21, the two sets of L-shaped support rods 29 on the fixed plate 19, via springs 33, drive the smoothing block 31 and smoothing rod 32 to dynamically smooth the material in the arc-shaped grinding groove of the grinding disc 21, ensuring a consistent material thickness and effectively preventing uneven material distribution. If the material is piled up or unevenly distributed, the first drive motor 4 is started to drive the grinding roller 5 to rotate and grind the raw material. During the grinding process, the second gear 12 meshes with the first gear 11 to drive the cleaning brush roller 10 to rotate synchronously and clean the surface of the grinding roller 5 in real time. When it is necessary to adjust the distance between the grinding roller 5 and the second grinding mechanism to adapt to the grinding requirements of different particle sizes, the hydraulic telescopic rod 13 is driven to drive the first connecting block 14 to move, thereby pushing the first connecting seat 6 installed at the bottom of one end of the movable seat 2, so that the movable seat 2 can be driven by the first connecting seat 6 installed on both sides. The convex shaft 3 rotates within the bearing housing, causing the limiting posts 17 installed on both sides of the movable seat 2 to slide along the limiting grooves on the limiting plate 18, thereby achieving stable adjustment of the angle of the movable seat 2. This, in turn, drives the adjustment of the gap between the grinding roller 5 and the second grinding mechanism, thus precisely controlling the grinding gap to meet the production requirements of different fineness. After adjustment, the grinding roller 5 works in conjunction with the grinding disc 21 during rotation to efficiently grind the material. The ground manganese zinc ferrite powder is fully collected into the dust collector 40 by the dust suction pipe 41 and dust suction hood installed on the dust collector 40.

[0031] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A grinding device for manganese-zinc ferrite powder, comprising a housing (1), characterized in that: The housing (1) is equipped with a first grinding mechanism, a second grinding mechanism, and a feeding mechanism. A dust collector (40) is installed on the back of the housing (1). A suction pipe (41) is installed on the top of the dust collector (40). One end of the suction pipe (41) extends into the housing (1), and a dust hood installed at one end is located on top of the second grinding mechanism. The first grinding mechanism is equipped with a first grinding component, a cleaning component, and an adjusting component. The first grinding component includes symmetrical movable seats (2) installed inside openings at both ends of the housing (1). Symmetrical convex shafts (3) are installed on both sides of the movable seat (2). One end of the convex shaft (3) is adapted to the bearing seats installed on the inner walls of the opening on both sides. An installation groove is opened at one end of the movable seat (2). A first drive motor (4) is installed inside the installation groove. One end of the output shaft of the first drive motor (4) passes through the through hole opened on the movable seat (2) and enters the inside of the housing (1). A grinding roller (5) is also connected to one end of the output shaft of the first drive motor (4). A first connecting seat (6) is also installed at the bottom of one end of the movable seat (2). The cleaning assembly includes a sleeve (7) installed at one end of the movable seat (2), one end of the sleeve (7) is inserted into the inside of the housing (1), and a sealing rubber sleeve (8) is installed at one end. The other end of the sealing rubber sleeve (8) is installed with the inner wall of the openings at both ends of the housing (1). A housing (9) is also fixedly installed at one end of the sleeve (7). The housing (9) covers the outside of the grinding roller (5). A symmetrical shaft is rotatably installed in the symmetrical shaft hole of the housing (9). A cleaning brush roller (10) is connected to one end of the shaft. The cleaning brush roller (10) is in contact with the outer wall of the grinding roller (5). A symmetrical first gear (11) is also installed on the shaft. The first gear (11) meshes with a second gear (12) fixedly installed at one end of the output shaft of the first drive motor (4) on one side of the grinding roller (5). The adjustment assembly includes symmetrical hydraulic telescopic rods (13) installed at the bottom of the movable seat (2) at both ends of the housing (1). A first connecting block (14) is installed at one end of the hydraulic telescopic rod (13). The first connecting block (14) is hinged to a first connecting seat (6) installed at the bottom of one end of the movable seat (2). A second connecting block (15) is installed at the other end of the hydraulic telescopic rod (13). The second connecting block (15) is hinged to a second connecting seat (16) provided on the support base installed at the bottom of both ends of the housing (1). Symmetrical limiting posts (17) are also installed on both sides of the movable seat (2). One end of the limiting post (17) slides in the limiting groove on the symmetrical limiting plate (18) installed at the edge of the opening at both ends of the housing (1).

2. The grinding equipment for manganese-zinc ferrite powder according to claim 1, characterized in that: The second grinding mechanism includes a fixed plate (19) installed inside the housing (1), a support frame (20) is installed at the bottom of the fixed plate (19), and a grinding disc (21) is provided in the circular groove in the middle of the fixed plate (19). The second grinding mechanism also includes a transmission component, a feeding component and a smoothing component.

3. The grinding equipment for manganese-zinc ferrite powder according to claim 2, characterized in that: The transmission assembly includes a second drive motor (22) mounted on a support frame (20), a first transmission wheel (23) mounted on the output shaft of the second drive motor (22), a transmission shaft (24) also mounted in the shaft hole provided on the support frame (20), a second transmission wheel (25) mounted on one end of the transmission shaft (24), a transmission belt (26) sleeved between the first transmission wheel (23) and the second transmission wheel (25), and the other end of the transmission shaft (24) connected to the bottom of the grinding disc (21).

4. The grinding equipment for manganese-zinc ferrite powder according to claim 2, characterized in that: The feeding assembly includes a servo motor (27) installed in a cavity inside the grinding disc (21). The output shaft of the servo motor (27) passes through a through hole at the top of the grinding disc (21). A fixing ring is also fitted on the output shaft of the servo motor (27). A lever (28) is installed on the fixing ring. The lever (28) is in contact with the top of the grinding disc (21).

5. The grinding equipment for manganese-zinc ferrite powder according to claim 2, characterized in that: The smoothing assembly includes two sets of symmetrical L-shaped support rods (29) installed on the top of the fixed plate (19) at the edge of the grinding disc (21). A movable rod (30) is installed in the through hole opened on the L-shaped support rod (29). A limit block is provided at one end of the movable rod (30), and a smoothing block (31) is connected to the other end of the movable rod (30). Several smoothing rods (32) are installed at the bottom of the smoothing block (31), and a spring (33) is also connected to the top of the smoothing block (31). The other end of the spring (33) is connected to the bottom of the L-shaped support rod (29).

6. The grinding equipment for manganese-zinc ferrite powder according to claim 1, characterized in that: The feeding mechanism includes a feeding hopper (34) installed on the top of the box (1). Inside the box (1), at the bottom of the feeding hopper (34), a first rolling roller (35) and a second rolling roller (36) are installed. The shafts at one end of the first rolling roller (35) and the second rolling roller (36) are connected to the bearing seats installed on the inner wall of one end of the box (1). The shafts at the other end of the first rolling roller (35) and the second rolling roller (36) pass through the shaft hole opened on the inner wall of the other end of the box (1) and are equipped with a third gear (37) and a fourth gear (38). The third gear (37) and the fourth gear (38) mesh with each other. One end of the shaft at the other end of the first rolling roller (35) is also connected to the output shaft of the third drive motor (39) on the top of the fixed seat installed on the side wall of one end of the box (1). Inside the box (1), at the bottom of the first rolling roller (35) and the second rolling roller (36), a feeding hopper (42) is also installed.