Powder grinding equipment for high-frequency manganese zinc ferrite production

Abstract

The invention relates to the technical field of powder grinding, and discloses powder grinding equipment for high-frequency manganese zinc ferrite production, which comprises a bottom plate, a shell is fixedly connected to the top of the bottom plate, a grinding mechanism is arranged in the shell, the grinding mechanism comprises a grinding cylinder, the grinding cylinder is arranged in the shell, and the grinding cylinder is arranged in the shell. And a grinding roller is arranged in the grinding cylinder. Through the design of the grinding mechanism, high-frequency manganese zinc ferrite crushed aggregates are fed through one first feeding hopper, after the fed crushed aggregates enter a grinding cylinder, the crushed aggregates are crushed by outer cutting teeth and inner cutting teeth along with rotation of a grinding roller, the crushed aggregates enter a grinding cavity to be ground, and the crushed aggregates are discharged downwards after being fully ground; therefore, crushing and grinding integrated processing is carried out, the materials can be directly crushed and ground, and compared with a traditional mode that crushing is carried out by relying on an additional crushing device and then throwing and grinding are carried out, the steps are simpler, and the processing efficiency is higher.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of powder grinding, in particular to a powder grinding device for high-frequency manganese-zinc ferrite production. BACKGROUND

[0002] Manganese-zinc soft magnetic ferrite powder is a composite oxide powder composed of iron oxide, manganese oxide and zinc oxide, and has a black or dark brown appearance; the crystal structure is spinel type, has high magnetic permeability and low loss characteristics, and is a core material of elements such as transformers and inductors in electronic devices; the manganese-zinc soft magnetic ferrite powder is processed by using a grinding device.

[0003] Patent No. CN218359450U discloses a precision grinding structure for rare earth permanent magnet production, which comprises an electric cylinder, the output end of the electric cylinder is fixedly connected with a pressing plate, and the bottom end of the electric cylinder is fixedly connected to the lower surface of a top plate. The rare earth mineral is conveyed to the support plate through the feeding pipe, and the rare earth mineral is preliminarily crushed by the pressing plate driven by the electric cylinder, and the preliminarily crushed rare earth mineral is pushed to the first roller set by the first push plate driven by the first electric telescopic rod for the first time, and the rare earth mineral after the first time of grinding falls to the second roller set through the gap between the first roller set, and then the second roller set is used for the second time of grinding, and the rare earth mineral after the second time of grinding falls to the sieve plate, a plurality of sieve holes are formed in the sieve plate, and the rare earth mineral meeting the processing requirements falls into the finished product storage tank of the storage tank through the sieve holes.

[0004] When the above device grinds the rare earth mineral, the roller set is used for rolling, in order to ensure sufficient rolling, although two roller sets are arranged, but as a whole, the material can only be rolled twice, compared with long-time repeated rolling and grinding, the above method cannot guarantee the uniformity of the particle size of the powder after rolling and the rolling quality, although the existing grinding device can finely grind the powder, but for the material which has not been fully crushed, the material needs to be pre-crushed by using an additional crushing tool before the fine grinding operation is performed, and accordingly the processing steps are more complicated, therefore, the powder grinding device for high-frequency manganese-zinc ferrite production is provided to solve the above problems. SUMMARY

[0005] In order to solve the above problems, the application provides a powder grinding device for high-frequency manganese-zinc ferrite production.

[0006] The powder grinding device for high-frequency manganese-zinc ferrite production provided by the application adopts the following technical scheme:

[0007] The powder grinding device for high-frequency manganese-zinc ferrite production comprises a bottom plate, a shell is fixedly connected to the top of the bottom plate, and a grinding mechanism is arranged in the shell;

[0008] The grinding mechanism comprises a grinding cylinder arranged inside the shell, a grinding roller arranged inside the grinding cylinder, a grinding cavity formed in the grinding cylinder, the grinding roller extending into the grinding cavity and matching the grinding cavity, inner cutting teeth fixedly connected to the outer side of the grinding roller, outer cutting teeth fixedly connected to the inner wall of the grinding cylinder, two first feeding hoppers fixedly connected to the top of the shell, and a connecting rod integrally formed on the top of the grinding roller and penetrating through the top wall of the shell and being rotatably connected to the shell.

[0009] The shell is internally provided with a screening mechanism, which comprises an annular frame arranged at the bottom of the grinding cylinder, a conical filter screen fixedly connected to the inside of the annular frame, an annular mesh plate fixedly connected to the bottom wall of the annular frame, a shunt frame fixedly connected to the bottom of the annular frame, a shunt hopper arranged at the bottom of the conical filter screen and fixedly connected to the inside of the shunt frame, a material collecting box fixedly connected to the top of the bottom plate, a feeding pipe fixedly connected to the top of the material collecting box, a fan fixedly connected to one side wall of the material collecting box, a second feeding hopper fixedly connected to the top of the material collecting box, and a discharge pipe integrally formed on the shunt frame.

[0010] By using the above technical scheme, the high-frequency manganese-zinc ferrite fragments are fed through one of the first feeding hoppers, and after the fragments enter the inside of the grinding cylinder, they are crushed by the outer cutting teeth and the inner cutting teeth as the grinding roller rotates, and then the crushed fragments are ground in the grinding cavity and discharged downward after being fully ground. In this way, the material can be directly crushed and ground, and compared with the traditional method of crushing the material by an additional crushing device and then feeding and grinding, the steps are simpler and the processing efficiency is higher.

[0011] After the powder is ground, the fully ground powder is fed downward on the conical filter screen, which screens the powder, and the powder meeting the grinding requirements falls downward on the conveying device and is conveyed to the outside of the shell by the conveying device, while the powder not meeting the grinding requirements rolls off the conical filter screen and enters the shunt frame through the annular mesh plate, so as to properly shunt the ground powder, and the fully ground powder can be blown back to the grinding cylinder by the fan for regrinding, so as to ensure the full grinding of the powder.

[0012] Preferably, the inner cutting teeth are distributed at equal intervals around the outer side of the grinding roller, and the outer cutting teeth are distributed at equal intervals around the inner wall of the grinding cylinder.

[0013] By using the above technical scheme, the fragments are crushed between the inner cutting teeth and the outer cutting teeth as the grinding roller rotates.

[0014] Preferably, a horizontal plate is fixedly connected between the two first feed hoppers, one end of the connecting rod is rotatably connected to the horizontal plate, a first motor is fixedly connected to the top of the horizontal plate, the first motor is fixedly connected to a first gear through an output shaft, a second gear is fixedly connected to the outside of the connecting rod, the first gear is disposed on one side of the second gear, and the first gear meshes with the second gear.

[0015] By adopting the above technical solution, the rotation of the first gear drives the rotation of the second gear.

[0016] Preferably, two support plates are fixedly connected to the outside of the grinding cylinder, and both support plates are fixedly connected to the inside of the shell.

[0017] By adopting the above technical solution, the support plate can provide support and fixation for the grinding cylinder.

[0018] Preferably, guide plates are provided on both sides of the annular frame, and the two guide plates are fixedly connected to the two side walls of the inner cavity of the housing. A movable plate is provided on the rear side of the housing, and the movable plate extends into the interior of the housing. The two side walls of the movable plate are slidably connected to the two guide plates respectively. A U-shaped plate is fixedly connected to the rear side wall of the housing, and a spring is fixedly connected to the rear side wall of the housing. One end of the spring is fixedly connected to the inner side of the movable plate. Two extension plates are fixedly connected to the outer side of the annular frame, and the two guide plates pass through the two extension plates respectively.

[0019] By adopting the above technical solution, the spring provides an elastic force to the moving plate.

[0020] Preferably, push-pull rods are provided on the top of both sides of the movable plate. One end of the push-pull rod extends into the interior of the extension plate and is connected to the extension plate via a pivot. The other end of the push-pull rod is connected to the top of the movable plate via a pivot.

[0021] By adopting the above technical solution, the moving plate can drive the push-pull rod to swing after it moves.

[0022] Preferably, a round rod is rotatably connected to the inner side of the U-shaped plate, the round rod is located behind the moving plate, a second motor is fixedly connected to the top of the U-shaped plate, the second motor is fixedly connected to one end of the round rod through an output shaft, and a striking wheel is fixedly connected to the outside of the round rod.

[0023] By adopting the above technical solution, the second motor drives the round rod to rotate after it starts working.

[0024] Preferably, the collection box is disposed on one side of the shell, one end of the discharge pipe extends into the interior of the second feed hopper, one end of the feeding pipe extends into the interior of one of the first feed hoppers, a first baffle is disposed on the top of the collection box, a second baffle is disposed on the top of the first baffle, the second baffle extends into the interior of the first baffle and is slidably connected to the first baffle, a protective mesh plate is fixedly connected inside the collection box, the protective mesh plate is disposed on one side of the fan, and an auxiliary filter screen is fixedly connected to the discharge pipe.

[0025] By adopting the above technical solutions, the protective mesh can reduce the possibility of powder entering the fan.

[0026] Preferably, the first baffle extends into the interior of the second feed hopper, the second baffle extends into the interior of the discharge pipe, and an electric push rod is fixedly connected to one side of the first baffle, with one end of the electric push rod fixedly connected to the outside of the housing.

[0027] By adopting the above technical solution, the electric push rod can push and pull the first baffle horizontally after it is working.

[0028] Preferably, a conveying device is fixedly connected to the top of the base plate, the conveying device extends into the interior of the housing, the conveying device is located at the bottom of the diversion hopper, and a door panel is provided on the front side of the housing, the door panel being connected to the housing via a hinge.

[0029] By adopting the above technical solution, the fully ground powder falls onto the conveying device and is then transported to the outside of the housing by the conveying device.

[0030] In summary, the present invention has the following beneficial technical effects:

[0031] 1. A powder grinding equipment for the production of high-frequency manganese-zinc ferrite, wherein the high-frequency manganese-zinc ferrite fragments are fed into one of the first feed hoppers through the design of the grinding mechanism. After being fed into the grinding cylinder, the fragments are crushed by the outer and inner cutting teeth as the grinding rollers rotate. After being crushed, they enter the grinding chamber for grinding. After being fully ground, they are discharged downwards. This integrates crushing and grinding, and can directly crush and grind the material. Compared with the traditional method of relying on an additional crushing device for crushing before feeding and grinding, the steps are simpler and the processing efficiency is higher.

[0032] 2. A high-frequency manganese-zinc ferrite production powder grinding equipment, through the design of the screening mechanism, after the fully ground powder is put onto the conical filter screen, the conical filter screen screens it. The powder that meets the grinding requirements falls directly down onto the conveying device and is conveyed to the outside of the shell by the conveying device, while the powder that does not meet the grinding requirements rolls off the conical filter screen and enters the diversion frame after passing through the annular mesh plate. This achieves proper diversion of the ground powder, and the powder that is not fully ground can be blown back to the grinding cylinder by the blower for re-grinding, thus ensuring the full grinding of the powder.

[0033] 3. A high-frequency manganese-zinc ferrite production powder grinding equipment, which adopts airflow blowing for secondary feeding of powder that does not meet the grinding index after screening. The feeding method is simpler and more efficient. Compared with the traditional feeding method that relies on conveying devices, the airflow blowing is more thorough and can avoid the problem of difficult cleaning caused by powder residue. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the present invention;

[0035] Figure 2 This is a cross-sectional view of the shell structure in this invention;

[0036] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0037] Figure 4 This is a schematic diagram of the structure of the grinding roller in this invention;

[0038] Figure 5 This is a cross-sectional view of the grinding cylinder in this invention;

[0039] Figure 6 This is a cross-sectional side view of the housing in this invention;

[0040] Figure 7 for Figure 6 Enlarged view of point B in the image;

[0041] Figure 8 This is a cross-sectional view of the annular frame in this invention;

[0042] Figure 9 for Figure 8 Enlarged view of point C in the image;

[0043] Figure 10 This is a schematic diagram of the feeding tube in this invention.

[0044] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Shell; 3. Grinding mechanism; 31. Grinding cylinder; 32. Grinding roller; 33. Grinding chamber; 34. Inner cutting teeth; 35. Outer cutting teeth; 36. First feed hopper; 37. Connecting rod; 38. Horizontal plate; 39. First motor; 391. First gear; 392. Second gear; 4. Screening mechanism; 41. Annular frame; 42. Conical filter screen; 43. Annular screen plate; 44. Diverting frame; 45. Diverting hopper; 46. Collection box 47. Feeding pipe; 48. Fan; 49. Second feed hopper; 491. Discharge pipe; 492. Guide plate; 493. Moving plate; 494. U-shaped plate; 495. Spring; 496. Extension plate; 497. Push-pull rod; 498. Round rod; 499. Second motor; 481. Striking wheel; 482. First baffle; 483. Second baffle; 484. Protective mesh plate; 485. Auxiliary filter screen; 486. Electric push rod; 5. Conveying device; 6. Door panel. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1 - Appendix Figure 10 The present invention will be described in further detail below.

[0046] This invention discloses a powder grinding device for the production of high-frequency manganese-zinc ferrite. (Refer to...) Figures 1-10 The device includes a base plate 1, a housing 2 fixedly connected to the top of the base plate 1, a grinding mechanism 3 inside the housing 2, a grinding cylinder 31 inside the housing 2, a grinding roller 32 inside the grinding cylinder 31, a grinding cavity 33 inside the grinding cylinder 31, the grinding roller 32 extending into the grinding cavity 33 and matching the grinding cavity 33, and an internal cutting tooth 34 fixedly connected to the outside of the grinding roller 32.

[0047] External cutting teeth 35 are fixedly connected to the inner wall of the grinding cylinder 31. Two first feed hoppers 36 are fixedly connected to the top of the shell 2. A connecting rod 37 is integrally formed on the top of the grinding roller 32. The connecting rod 37 passes through the top wall of the shell 2 and is rotatably connected to the shell 2. High-frequency manganese zinc ferrite fragments are fed in through one of the first feed hoppers 36. After being fed in, the fragments enter the grinding cylinder 31. As the grinding roller 32 rotates, the fragments are crushed by the external cutting teeth 35 and the internal cutting teeth 34. After being crushed, they enter the grinding chamber 33 for grinding. After being fully ground, they are discharged downwards. This method of processing can directly crush and grind materials. Compared with the traditional method of relying on an additional crushing device for crushing and then feeding them for grinding, the steps are simpler and the processing efficiency is higher.

[0048] The housing 2 is equipped with a screening mechanism 4, which includes an annular frame 41 located at the bottom of the grinding cylinder 31. A conical filter screen 42 is fixedly connected inside the annular frame 41. An annular mesh plate 43 is fixedly connected to the bottom wall of the annular frame 41. A diversion frame 44 is fixedly connected to the bottom of the annular frame 41. A diversion hopper 45 is located at the bottom of the conical filter screen 42 and is fixedly connected to the inner side of the diversion frame 44. A collection box 46 is fixedly connected to the top of the bottom plate 1. A feeding pipe 47 is fixedly connected to the top of the collection box 46. A blower 48 is fixedly connected to one side wall of the collection box 46. A second feed pipe is fixedly connected to the top of the collection box 46. The bucket 49 and the diversion frame 44 are integrally formed with a discharge pipe 491. After grinding, the fully ground powder is fed downward onto the conical filter screen 42, where it is screened. Powder that meets the grinding requirements falls directly onto the conveying device 5 and is conveyed to the outside of the housing 2. Powder that does not meet the grinding requirements rolls off the conical filter screen 42 and enters the diversion frame 44 after passing through the annular mesh plate 43. This achieves proper diversion of the ground powder. Powder that is not fully ground can also be blown back to the grinding cylinder 31 by the blower 48 for re-grinding, thus ensuring the full grinding of the powder.

[0049] The inner cutting teeth 34 are evenly distributed around the outside of the grinding roller 32, and the outer cutting teeth 35 are evenly distributed around the inner wall of the grinding cylinder 31. After the grinding roller 32 rotates, the crushed material is crushed between the inner cutting teeth 34 and the outer cutting teeth 35. A horizontal plate 38 is fixedly connected between the two first feed hoppers 36. One end of the connecting rod 37 is rotatably connected to the horizontal plate 38. A first motor 39 is fixedly connected to the top of the horizontal plate 38. The first motor 39 is fixedly connected to the first gear 391 through the output shaft. A second gear 392 is fixedly connected to the outside of the connecting rod 37. The first gear 391 is located on one side of the second gear 392 and meshes with the second gear 392. After the first gear 391 rotates, it drives the second gear 392 to rotate. Two support plates are fixedly connected to the outside of the grinding cylinder 31. Both support plates are fixedly connected to the inside of the housing 2. The support plates can provide support and fixation for the grinding cylinder 31.

[0050] Guide plates 492 are provided on both sides of the annular frame 41. The two guide plates 492 are fixedly connected to the two side walls of the inner cavity of the housing 2. A movable plate 493 is provided on the rear side of the housing 2. The movable plate 493 extends into the interior of the housing 2. The two side walls of the movable plate 493 are slidably connected to the two guide plates 492. A U-shaped plate 494 is fixedly connected to the rear side wall of the housing 2. A spring 495 is fixedly connected to the rear side wall of the housing 2. One end of the spring 495 is fixedly connected to the inner side of the movable plate 493. Two extension plates 496 are fixedly connected to the outer side of the annular frame 41. The two guide plates 492 pass through the two extension plates 496 respectively. The spring 495 provides an elastic force to the movable plate 493.

[0051] Push-pull rods 497 are provided on the top of both sides of the movable plate 493. One end of the push-pull rod 497 extends into the interior of the extension plate 496 and is connected to the extension plate 496 via a pivot. The other end of the push-pull rod 497 is connected to the top of the movable plate 493 via a pivot. When the movable plate 493 moves, it can drive the push-pull rod 497 to swing. A round rod 498 is rotatably connected to the inner side of the U-shaped plate 494. The round rod 498 is located on the rear side of the movable plate 493. A second motor 499 is fixedly connected to the top of the U-shaped plate 494. The second motor 499 is fixedly connected to one end of the round rod 498 via an output shaft. A striking wheel 481 is fixedly connected to the outside of the round rod 498. When the second motor 499 works, it drives the round rod 498 to rotate.

[0052] A collection box 46 is located on one side of the housing 2. One end of the discharge pipe 491 extends into the interior of the second feed hopper 49, and one end of the feeding pipe 47 extends into one of the first feed hoppers 36. A first baffle 482 is provided on the top of the collection box 46, and a second baffle 483 is provided on the top of the first baffle 482. The second baffle 483 extends into the interior of the first baffle 482 and is slidably connected to the first baffle 482. A protective mesh plate 484 is fixedly connected inside the collection box 46 and is located on one side of the blower 48. An auxiliary filter screen 485 is fixedly connected to the discharge pipe 491. The protective mesh plate 484 can reduce the possibility of powder entering the interior of the blower 48. The first baffle 482 extends into the interior of the second feed hopper 49, and the second baffle 483 extends into the interior of the discharge pipe 491. An electric push rod 486 is fixedly connected to one side of the first baffle 482. One end of the electric push rod 486 is fixedly connected to the outside of the housing 2. After the electric push rod 486 is working, it can push and pull the first baffle 482 horizontally. A conveying device 5 is fixedly connected to the top of the bottom plate 1. The conveying device 5 extends into the interior of the housing 2. The conveying device 5 is located at the bottom of the diversion hopper 45. A door panel 6 is provided on the front side of the housing 2. The door panel 6 is connected to the housing 2 by a hinge. After the fully ground powder falls onto the conveying device 5, it is conveyed to the outside of the housing 2 by the conveying device 5.

[0053] In actual operation, when this device is used, it is first connected to the power supply. After the first motor 39 starts working, it drives the first gear 391 to rotate. The first gear 391 drives the second gear 392 to rotate. The second gear 392 drives the connecting rod 37 to rotate. The connecting rod 37 drives the grinding roller 32 to rotate. At this time, the high-frequency manganese-zinc ferrite scrap to be ground is put into the first feed hopper 36 on the side away from the feed pipe 47. The put-in scrap falls into the grinding cylinder 31. At this time, as the grinding roller 32 rotates, the inner cutting teeth 34 and the outer cutting teeth... The tooth 35 crushes the material. In the grinding cylinder 31, the distance between the grinding roller 32 and the inner wall of the grinding cylinder 31 decreases as the height decreases. Therefore, the material rolls down continuously and is gradually crushed during the crushing process. When the fully crushed material falls into the grinding chamber 33, the distance between the inner wall of the grinding chamber 33 and the outer side of the grinding roller 32 further shrinks. Thus, the material is crushed and ground in the grinding chamber 33 as it rolls down under the influence of gravity. After being fully ground, it can fall out through the opening at the bottom of the grinding cylinder 31 for feeding.

[0054] When the ground powder falls, it first falls onto the conical filter screen 42. Powder that meets the grinding requirements falls onto the diversion hopper 45 after passing through the conical filter screen 42, and then falls onto the conveying device 5. After the conveying device 5 is turned on, it can transport the powder to the outside of the housing 2 for discharge. Powder that has not yet met the grinding requirements is intercepted by the conical filter screen 42 and rolls down onto the annular mesh plate 43 under the influence of gravity. Finally, it falls into the diversion frame 44 through the annular mesh plate 43. The bottom section of the diversion frame 44 is inclined towards the collection box 46, so the powder in the diversion frame 44 will slide down into the second feed hopper 49 through the discharge pipe 491 and enter the collection box 46 through the second feed hopper 49.

[0055] After the electric push rod 486 is activated, it can push the first baffle 482. The first baffle 482 drives the second baffle 483 to move synchronously. When the first baffle 482 moves into the second feed hopper 49 and isolates the inside of the second feed hopper 49, the second baffle 483 is inserted into the discharge pipe 491 and isolates the inside of the discharge pipe 491. At this time, after the blower 48 is activated, it can blow the powder in the collection box 46, causing the powder to be finally sent into the second feed hopper 49 where its discharge end is located through the feed pipe 47. Through the above operation, it can be seen that this can remove powder that has not reached the grinding standard. The powder is fed back into the grinding cylinder 31 for re-grinding, which can effectively improve the grinding quality. The secondary feeding is carried out by blowing with the blower 48. Compared with the traditional feeding by the conveyor device 5, the airflow is more thorough and can avoid the problem of powder residue causing cleaning difficulties. During the process of blowing the powder with the airflow, the airflow passes through the auxiliary filter screen 485, and part of the airflow can be discharged through the auxiliary filter screen 485. This avoids the situation where the airflow is concentrated and discharged from the end of the feeding pipe 47, and the powder overflows outside the grinding cylinder 31 due to excessive airflow.

[0056] Finally, in the above screening steps, after the second motor 499 starts working, it drives the round rod 498 to rotate. After the round rod 498 rotates, it drives the striking wheel 481 to rotate. After the striking wheel 481 rotates, it strikes the moving plate 493. After being impacted, the moving plate 493 moves and drives the push-pull rod 497 to swing. After the push-pull rod 497 swings, it pushes and pulls the extension plate 496. The extension plate 496 drives the annular frame 41 to move. Under the elastic force of the spring 495, as can be seen from the above connection relationship, the annular frame 41, the conical filter screen and the discharge pipe 491 can perform short-distance up and down rapid shaking. During the shaking process, it can guide the powder to be discharged quickly, avoiding the situation where the powder cannot fall in time and causes powder residue.

[0057] 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 powder grinding device for the production of high-frequency manganese-zinc ferrite, characterized in that: Includes a base plate (1), and a housing (2) is fixedly connected to the top of the base plate (1). A grinding mechanism (3) is provided inside the housing (2). The grinding mechanism (3) includes a grinding cylinder (31), which is located inside the housing (2). A grinding roller (32) is provided inside the grinding cylinder (31). A grinding cavity (33) is opened inside the grinding cylinder (31). The grinding roller (32) extends into the grinding cavity (33) and matches the grinding cavity (33). An inner cutting tooth (34) is fixedly connected to the outside of the grinding roller (32). An outer cutting tooth (35) is fixedly connected to the inner wall of the grinding cylinder (31). Two first feed hoppers (36) are fixedly connected to the top of the housing (2). A connecting rod (37) is integrally formed on the top of the grinding roller (32). The connecting rod (37) passes through the top wall of the housing (2) and is rotatably connected to the housing (2). The shell (2) is provided with a screening mechanism (4), which includes an annular frame (41). The annular frame (41) is located at the bottom of the grinding cylinder (31). A conical filter screen (42) is fixedly connected inside the annular frame (41). An annular mesh plate (43) is fixedly connected to the bottom wall of the annular frame (41). A diversion frame (44) is fixedly connected to the bottom of the annular frame (41). A diversion hopper (45) is provided at the bottom of the conical filter screen (42). The diversion hopper (45) is fixedly connected to the inner side of the diversion frame (44). A collection box (46) is fixedly connected to the top of the bottom plate (1). A feeding pipe (47) is fixedly connected to the top of the collection box (46). A fan (48) is fixedly connected to one side wall of the collection box (46). A second feed hopper (49) is fixedly connected to the top of the collection box (46). A discharge pipe (491) is integrally formed on the diversion frame (44).

2. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 1, characterized in that: The inner cutting teeth (34) are evenly spaced around the outside of the grinding roller (32), and the outer cutting teeth (35) are evenly spaced around the inner wall of the grinding cylinder (31).

3. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 1, characterized in that: A horizontal plate (38) is fixedly connected between the two first feed hoppers (36). One end of the connecting rod (37) is rotatably connected to the horizontal plate (38). A first motor (39) is fixedly connected to the top of the horizontal plate (38). A first gear (391) is fixedly connected to the first motor (39) through the output shaft. A second gear (392) is fixedly connected to the outside of the connecting rod (37). The first gear (391) is located on one side of the second gear (392), and the first gear (391) meshes with the second gear (392).

4. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 1, characterized in that: Two support plates are fixedly connected to the outside of the grinding cylinder (31), and both support plates are fixedly connected to the inside of the shell (2).

5. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 1, characterized in that: Guide plates (492) are provided on both sides of the annular frame (41). The two guide plates (492) are fixedly connected to the two side walls of the inner cavity of the housing (2). A movable plate (493) is provided on the rear side of the housing (2). The movable plate (493) extends into the interior of the housing (2). The two side walls of the movable plate (493) are slidably connected to the two guide plates (492). A U-shaped plate (494) is fixedly connected to the rear side wall of the housing (2). A spring (495) is fixedly connected to the rear side wall of the housing (2). One end of the spring (495) is fixedly connected to the inner side of the movable plate (493). Two extension plates (496) are fixedly connected to the outer side of the annular frame (41). The two guide plates (492) pass through the two extension plates (496).

6. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 5, characterized in that: Push-pull rods (497) are provided on the top of both sides of the movable plate (493). One end of the push-pull rod (497) extends into the interior of the extension plate (496) and is connected to the extension plate (496) via a pivot. The other end of the push-pull rod (497) is connected to the top of the movable plate (493) via a pivot.

7. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 5, characterized in that: A round rod (498) is rotatably connected to the inner side of the U-shaped plate (494). The round rod (498) is located behind the moving plate (493). A second motor (499) is fixedly connected to the top of the U-shaped plate (494). The second motor (499) is fixedly connected to one end of the round rod (498) through its output shaft. A striking wheel (481) is fixedly connected to the outside of the round rod (498).

8. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 1, characterized in that: The collection box (46) is located on one side of the housing (2). One end of the discharge pipe (491) extends into the interior of the second feed hopper (49), and one end of the feeding pipe (47) extends into the interior of one of the first feed hoppers (36). A first baffle (482) is provided on the top of the collection box (46), and a second baffle (483) is provided on the top of the first baffle (482). The second baffle (483) extends into the interior of the first baffle (482) and is slidably connected to the first baffle (482). A protective mesh plate (484) is fixedly connected inside the collection box (46). The protective mesh plate (484) is located on one side of the fan (48), and an auxiliary filter (485) is fixedly connected to the discharge pipe (491).

9. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 8, characterized in that: The first baffle (482) extends into the interior of the second feed hopper (49), and the second baffle (483) extends into the interior of the discharge pipe (491). An electric push rod (486) is fixedly connected to one side of the first baffle (482), and one end of the electric push rod (486) is fixedly connected to the outside of the housing (2).

10. The powder grinding equipment for high-frequency manganese-zinc ferrite production according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to the top of the conveying device (5), which extends into the interior of the shell (2). The conveying device (5) is located at the bottom of the diversion hopper (45). A door panel (6) is provided on the front side of the shell (2), and the door panel (6) is connected to the shell (2) by a hinge.

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