Zinc ferrite soft magnetic grinding device
By designing a grinding device that includes an insulating plate and a turning blade, the problem of uneven particle size and defects caused by lack of grinding in the production of soft magnetic materials was solved, achieving uniform grinding and continuity, and improving the magnetic properties and reliability of subsequent processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-03
AI Technical Summary
In the production of soft magnetic materials, the lack of a grinding process leads to uneven particle size, increases defects, reduces magnetic permeability, increases hysteresis loss, affects magnetic response speed and efficiency, hinders subsequent processing, and affects product performance and reliability.
A grinding device is designed, comprising a shell, a first motor, a grinding barrel, a transparent plate, an isolation plate, a collection frame, and a motor-driven grinding device. The isolation plate forms an isolation wall to ensure that the soft magnetic material is evenly distributed and collides with the grinding block for grinding. The turning blades prevent the filter screen from clogging, thus achieving continuity and stability.
This method achieves uniform grinding of soft magnetic materials, avoids local over- or under-grinding, ensures the continuity and stability of the grinding process, and improves the magnetic properties of the materials and the reliability of subsequent processing.
Smart Images
Figure CN223959768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a grinding device, and more particularly to a zinc ferrite soft magnetic grinding device. Background Technology
[0002] Zinc ferrite (chemical formula ZnFe₂O₄) is a composite oxide with a spinel structure, exhibiting broad application potential in multiple fields due to its unique physical and chemical properties. As a soft magnetic material, zinc ferrite possesses excellent magnetic properties and maintains low loss at lower frequencies, making it suitable for manufacturing high-frequency transformers, electromagnetic shielding materials, and components in other electronic devices. Furthermore, zinc ferrite has attracted attention due to its high photocatalytic activity, sensitivity to visible light, and ability as a catalyst, making it suitable for use in environmental technologies to treat pollutants or in the energy sector to promote water splitting to produce hydrogen.
[0003] In the production of soft magnets, the grinding process is one of the key steps to ensure that the material has good magnetic properties and consistency. The absence of this step directly affects the final quality of the soft magnet. Insufficiently ground soft magnets have larger and more uneven particle sizes, leading to more microstructural defects within the material, thus reducing permeability, increasing hysteresis loss, and affecting the material's magnetic response speed and efficiency. Furthermore, the rough surface of unground material is detrimental to subsequent processing such as coating and insulation treatments, potentially affecting the overall performance and reliability of the product.
[0004] Therefore, it is necessary to design a zinc ferrite soft magnetic grinding device to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to overcome the shortcomings of omitting grinding in the production of soft magnetic materials, such as uneven particle size, increased defects, reduced permeability, increased hysteresis loss, affected magnetic response, hindered subsequent processing, and impacted product performance and reliability, the technical problem of this utility model is to provide a zinc ferrite soft magnetic grinding device.
[0006] The technical implementation scheme of this utility model is as follows: A zinc ferrite soft magnetic grinding device includes a shell, a first motor, a grinding barrel, a transparent plate, an insulating plate, a first collecting frame, a filter screen, a first handle, a second collecting frame, and a second handle. The first motor is fixedly connected to the top of the shell, and the grinding barrel is fixedly connected to the output shaft of the first motor. The grinding barrel is rotatably connected to the shell. The upper part of the grinding barrel has more than one feed port arranged in a circular array. The transparent plate is fixedly connected to the middle of the grinding barrel. More than one insulating plate is arranged in a circular array inside the grinding barrel. The first collecting frame is placed at the lower part of the shell and is located below the grinding barrel. The filter screen is fixedly connected inside the first collecting frame. The first handle is fixedly connected to the right side of the first collecting frame. The second collecting frame is placed at the lower part of the shell and is located below the first collecting frame. The second handle is fixedly connected to the right side of the second collecting frame.
[0007] In a preferred embodiment of the present invention, the present invention further includes a hopper, a hopper cover and a pull rod. Each discharge port of the grinding barrel is connected to and communicates with the hopper. The top of each hopper is rotatably connected to the hopper cover, and the top of each hopper cover is fixedly connected to the pull rod.
[0008] In a preferred embodiment of this utility model, it further includes guide plates, racks, gears, handles, and baffles. The guide plates are symmetrically and fixedly connected to one side of the outer shell. The racks are slidably connected to both guide plates. The two racks are symmetrical. The gears are rotatably connected to the right side of the outer shell. The gears are located between the two guide plates. Both racks mesh with the gears. The handles are fixedly connected to the right side of the gears. The baffles are symmetrically and slidably connected to the lower part of the outer shell. The two baffles are fixedly connected to the corresponding racks.
[0009] In a preferred embodiment of the present invention, the top surfaces of the two baffle plates are in contact with the bottom surface of each of the partition plates.
[0010] In a preferred embodiment of this utility model, it further includes a second motor, a first pulley, a first transmission belt, a second pulley, a second transmission belt, and a turning blade. The second motor is fixedly connected to one side of the lower part of the housing, and the turning blades are symmetrically and rotatably connected to the other side of the lower part of the housing. The first pulley is fixedly connected to the output shaft of the second motor and to one end of the turning blade that extends out of the housing. The first transmission belt is wound between the two first pulleys. The second pulley is fixedly connected to one end of the two turning blades that passes through the housing, and the second transmission belt is wound between the two second pulleys.
[0011] In a preferred embodiment of the present invention, a protective plate is further included, wherein the protective plate for protecting the two racks and the gear is fixedly connected to one side of the lower part of the outer shell.
[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention starts the first motor, and the output shaft of the first motor drives the grinding barrel to rotate. Under high-speed rotation, the isolation plate forms an isolation wall, so that the soft magnetic material and the grinding block collide inside the grinding barrel, thereby achieving effective grinding of the soft magnetic material. The setting of the isolation plate ensures that the soft magnetic material is evenly distributed in the grinding barrel, avoiding the problems of local over-grinding or insufficient grinding.
[0013] 2. This utility model starts a second motor, the output shaft of the second motor drives the first pulley to rotate, and under the drive of the first transmission belt, the first pulley drives the second pulley to rotate, which in turn causes the turning blade to rotate through the second transmission belt, thereby turning the soft magnet and grinding block, thus filtering the grinding block more thoroughly, preventing the filter screen from clogging, and ensuring the continuity and stability of the grinding process. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a partial cross-sectional view of the components of this utility model, including the hopper, hopper cover, and pull rod.
[0016] Figure 3 This is a partial cross-sectional view of the grip, gear, and rack components of this utility model.
[0017] Figure 4 This is a schematic diagram of the covering structure for the components of the present invention, including the second motor, the first pulley, and the first belt.
[0018] The components in the attached diagram are labeled as follows: 1. Outer shell, 2. First motor, 3. Grinding barrel, 4. Feed hopper, 5. Hopper cover, 6. Pull rod, 7. Transparent plate, 701. Isolation plate, 8. First collection frame, 9. Filter screen, 10. First handle, 11. Second collection frame, 12. Second handle, 13. Guide plate, 1301. Rack, 14. Gear, 15. Handle, 16. Baffle plate, 17. Second motor, 18. First pulley, 19. First transmission belt, 20. Second pulley, 21. Second transmission belt, 22. Tilting blade, 23. Protective plate. Detailed Implementation
[0019] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.
[0020] Example: A soft magnetic grinding device for zinc ferrite, such as Figures 1-4 As shown, the device includes a housing 1, a first motor 2, a grinding barrel 3, a transparent plate 7, an insulating plate 701, a first collection frame 8, a filter screen 9, a first handle 10, a second collection frame 11, a second handle 12, a hopper 4, a hopper cover 5, a pull rod 6, a guide plate 13, a rack 1301, a gear 14, a handle 15, and a baffle plate 16. The first motor 2 is screwed onto the top of the housing 1. The grinding barrel 3 is welded to the output shaft of the first motor 2. The grinding barrel 3 is rotatably connected to the housing 1. The upper part of the grinding barrel 3 has three feed inlets arranged in a circular array. The transparent plate 7 is glued to the middle of the grinding barrel 3. Six insulating plates 701 are arranged in a circular array in the lower part of the grinding barrel 3. The first collection frame 8 is placed at the bottom of the housing 1, directly below the grinding barrel 3. The filter screen 9 is screwed into the first collection frame 8. The first handle 10 is welded to the right side of the first collection frame 8. The second collection frame 11 and the second handle 12 are placed at the bottom of the housing 1. The second collection frame 11 is located directly below the first collection frame 8. A second handle 12 is welded to the right side of the second collection frame 11. The three discharge ports of the grinding barrel 3 are all connected to and communicate with the discharge hoppers 4. Each discharge hopper 4 has a rotatably connected hopper cover 5 at its top. A pull rod 6 is welded to the top of each hopper cover 5. Guide plates 13 are symmetrically welded to the upper and lower right sides of the outer casing 1. Two racks 1301 are slidably connected to the two guide plates 13. The racks 1301 are symmetrical vertically. The gear 14 is rotatably connected to the right side of the outer shell 1. The gear 14 is located between the two guide plates 13. Both racks 1301 mesh with the gear 14. The handle 15 is welded to the right side of the gear 14. The baffle plates 16 are symmetrically and slidably connected to the lower part of the outer shell 1. The top surfaces of the two baffle plates 16 are in contact with the bottom surfaces of the six isolation plates 701. Both baffle plates 16 are welded to the corresponding racks 1301.
[0021] like Figure 1 and Figure 4As shown, it also includes a second motor 17, a first pulley 18, a first transmission belt 19, a second pulley 20, a second transmission belt 21, a turning blade 22, and a protective plate 23. The second motor 17 is installed on the lower left side of the outer casing 1 by screws. The turning blades 22 are symmetrically and rotatably connected to the lower right side of the outer casing 1. The first pulley 18 is welded to the output shaft of the second motor 17 and to the end of the turning blade 22 on the left side that protrudes from the outer casing 1. The first transmission belt 19 is wound between the two first pulleys 18. The second pulley 20 is welded to the end of the two turning blades 22 that pass through the outer casing 1. The second transmission belt 21 is wound between the two second pulleys 20. The protective plate 23 for protecting the two racks 1301 and the gear 14 is installed on the lower right side of the outer casing 1 by screws.
[0022] When grinding the soft magnets, first pull the lever 6 to rotate the hopper cover 5 clockwise to open the feed hopper 4. After the worker pours the soft magnets into the grinding barrel 3, pull the lever 6 to rotate the hopper cover 5 counterclockwise to close the feed hopper 4. Then, start the first motor 2. The output shaft of the first motor 2 rotates, driving the grinding barrel 3 to rotate. Because the isolation plate 701 forms an isolation wall under high-speed rotation, the soft magnets are confined above the isolation wall and collide with the grinding blocks, thus realizing the grinding process. The internal grinding situation can be observed through the transparent plate 7. After the soft magnets are ground, close the [grinding chamber]. The first motor 2 stops rotating, and the insulating plate 701 also stops rotating. Next, the operator rotates the handle 15 counterclockwise, causing the gear 14 to rotate counterclockwise, which drives the upper rack 1301 forward and the lower rack 1301 backward, thus causing the baffle plate 16 to move in the opposite direction. When the baffle plate 16 reaches its end point, the magnetic core and the grinding block fall into the filter screen 9 through the gap between the insulating plates 701. The filter screen 9 filters the grinding block and it falls into the second collection frame 11, achieving the separation of the magnetic core and the grinding block. To further separate the magnetic core and the grinding block, and To prevent filter screen 9 from clogging, the operator starts the second motor 17. The output shaft of the second motor 17 drives the first pulley 18 to rotate, which in turn causes the left-side turning blade 22 to rotate via the first transmission belt 19. Under the action of the second pulley 20 and the second transmission belt 21, the left-side turning blade 22 drives the right-side turning blade 22 to rotate simultaneously, turning over the internal material. After the grinding block is completely filtered, the second motor 17 is turned off, and its output shaft stops rotating. Finally, the operator turns the handle 15 clockwise, causing the gear 14 to rotate clockwise, which in turn drives the upper rack 1301 and the lower rack. Move 1301 toward the center of the grinding barrel 3 to close the baffle plate 16 and prevent material from falling. At this time, it is safe to pour in new grinding blocks without them falling. The worker pulls the first handle 10 to pull out the first collection frame 8, takes out the magnetic core inside, and then pushes the first handle 10 back to its original position. Then, pull the second handle 12 to the right to pull out the second collection frame 11, open the hopper cover 5, pour the magnetic core in the second collection frame 11 into the grinding barrel 3, close the hopper cover 5, and push the second handle 12 back to its original position. If the next batch of magnetic cores needs to be ground, repeat the above operation.
[0023] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.
Claims
1. A soft magnetic grinding device for zinc ferrite, characterized in that, The device includes a housing (1), a first motor (2), a grinding barrel (3), a transparent plate (7), an isolation plate (701), a first collection frame (8), a filter screen (9), a first handle (10), a second collection frame (11), and a second handle (12). The first motor (2) is fixedly connected to the top of the housing (1), and the grinding barrel (3) is fixedly connected to the output shaft of the first motor (2). The grinding barrel (3) is rotatably connected to the housing (1). The upper part of the grinding barrel (3) has more than one feed port arranged in a circular array. The transparent plate (7) is fixedly connected to the middle of the grinding barrel (3). The grinding barrel (3) has more than one of the isolation plates (701) arranged in a ring inside. The first collection frame (8) is placed at the lower part of the outer shell (1). The first collection frame (8) is located below the grinding barrel (3). The filter screen (9) is fixedly connected inside the first collection frame (8). The first handle (10) is fixedly connected to the right side of the first collection frame (8). The second collection frame (11) is placed at the lower part of the outer shell (1). The second collection frame (11) is located below the first collection frame (8). The second handle (12) is fixedly connected to the right side of the second collection frame (11).
2. The zinc ferrite soft magnetic grinding apparatus according to claim 1, characterized in that, It also includes a feeding hopper (4), a hopper cover (5) and a pull rod (6). Each feeding port of the grinding barrel (3) is connected to and communicates with the feeding hopper (4). The top of each feeding hopper (4) is rotatably connected to the hopper cover (5). The top of each hopper cover (5) is fixedly connected to the pull rod (6).
3. The zinc ferrite soft magnetic grinding apparatus according to claim 2, characterized in that, It also includes guide plates (13), racks (1301), gears (14), handles (15) and baffles (16). The guide plates (13) are symmetrically fixedly connected to one side of the outer shell (1). The racks (1301) are slidably connected to both guide plates (13). The two racks (1301) are symmetrical. The gears (14) are rotatably connected to the right side of the outer shell (1). The gears (14) are located between the two guide plates (13). Both racks (1301) mesh with the gears (14). The handles (15) are fixedly connected to the right side of the gears (14). The baffles (16) are symmetrically slidably connected to the lower part of the outer shell (1). Both baffles (16) are fixedly connected to the corresponding racks (1301).
4. The zinc ferrite soft magnetic grinding apparatus according to claim 3, characterized in that, The top surfaces of the two baffles (16) are in contact with the bottom surface of each of the partition plates (701).
5. A zinc ferrite soft magnetic grinding apparatus according to claim 4, characterized in that, It also includes a second motor (17), a first pulley (18), a first transmission belt (19), a second pulley (20), a second transmission belt (21), and a turning blade (22). The second motor (17) is fixedly connected to one side of the lower part of the housing (1), and the turning blade (22) is symmetrically and rotatably connected to the other side of the lower part of the housing (1). The first pulley (18) is fixedly connected to the output shaft of the second motor (17) and to one end of the turning blade (22) on one side that protrudes from the housing (1). The first transmission belt (19) is wound between the two first pulleys (18). The second pulley (20) is fixedly connected to one end of the two turning blades (22) that pass through the housing (1). The second transmission belt (21) is wound between the two second pulleys (20).
6. The zinc ferrite soft magnetic grinding apparatus according to claim 5, characterized in that, It also includes a protective plate (23), which is fixedly connected to one side of the lower part of the outer shell (1) for protecting the two racks (1301) and the gear (14).