A magnetic powder powder molding process

Abstract

The application discloses a magnetic powder powder forming process, one end of the rotating drum is slidably connected with a rubber hammer, the mold is located in the beating direction of the rubber hammer, the inner groove of the base is detachably connected with a cover plate, the cover plate is the same as the inner groove of the base in shape, and the cover plate is hollow at the position corresponding to the mold. Before the magnetic core is formed, the equipment is used to inject the magnetic material into the mold, the top frame on the third bearing platform moves along with the extrusion head before pressing, the top frame pushes the top head, the top head drives the sliding rod to move to the inner groove, the sliding rod finally drives the rack to move, the rack drives the rotating drum to rotate, the rubber hammer on the rotating drum moves to the groove position quickly when the rotating drum rotates, so that the rubber hammer quickly beats, the rubber hammer is located on the upper and lower sides of the mold, so that the magnetic material in the mold can be uniformly distributed, so that the magnetic core quality is improved.

Description

Technical Field

[0001] This application relates to the field of powder forming technology, and in particular to a magnetic powder forming process. Background Technology

[0002] A magnetic core is a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical core materials. Manganese-zinc ferrite features high permeability and high flux density, along with low losses. Nickel-zinc ferrite exhibits extremely high impedance and low permeability (less than a few hundred). Ferrite cores are used in coils and transformers in various electronic devices.

[0003] The production of magnetic cores requires molding before sintering. During molding, magnetic powder is injected into a press, and the magnetic core shape is formed by high pressure extrusion. However, the magnetic material is not easy to loosen during pressing, and the magnetic material is not easy to be evenly distributed in the mold. This leads to agglomeration, and the performance of the formed magnetic core will be poor. The entire molding process cannot improve the quality of the magnetic core. Summary of the Invention

[0004] One of the objectives of this application is to provide a magnetic powder forming process.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a magnetic powder forming process, comprising a chassis, a feed inlet, a first cylinder, a second cylinder, a third cylinder, a first support platform, a second support platform, a third support platform, an extrusion head, and a mold. A base is detachably connected to the second support platform at the output end of the second cylinder. An inner groove is formed on the base, and a mold is welded into the inner groove. A vertical rod is detachably connected to the inner groove on the outer periphery of the mold. A rotating cylinder is rotatably connected to the vertical rod. A gear is provided on the rotating cylinder, and the gear meshes with a rack. The input end is located on the outside of the base. A rubber hammer is slidably connected to the other end of the rotating drum. The mold is located in the striking direction of the rubber hammer. A cover plate is detachably connected to the inner groove of the base. The cover plate has the same shape as the inner groove of the base. The cover plate is hollow at the position corresponding to the mold. A retaining seat is slidably connected to the extension seat. The retaining seat is U-shaped. A rubber head is detachably connected to one end of the retaining seat. An insertion rod is provided at the other end of the retaining seat. The insertion rod is inserted into the protrusion of the extension seat. A second spring is sleeved on the insertion rod.

[0006] Preferably, the base is rectangular in shape, the output end of the base is sloping, and the two sides of the base are respectively provided with top frames of the same structure. The upper end of the top frame is detachably connected to the corresponding third support platform. The top frame is vertically arranged on the third support platform, and the lower end of the top frame extends to the base position.

[0007] Preferably, a slide rod is slidably connected to the base, the slide rod is connected through the base, one end of the slide rod is located in the inner groove of the base, the other end of the slide rod is located on the outer side of the base, the outer end of the slide rod on the base corresponds to the top frame, the slide rod and the top frame are arranged in an L-shape, and a top head is detachably connected to the outer end of the slide rod on the base.

[0008] Preferably, the top head overlaps with the lower end of the top frame, the top head is generally trapezoidal, one side of the top head is connected to the top frame, a first spring is sleeved on the slide rod between the top head and the base, one end of the first spring is detachably connected to the extension seat, and the other end of the first spring is detachably connected to the base.

[0009] Preferably, a fixed seat is detachably connected to the inner groove of the base. The fixed seat is rectangular in shape and is arranged vertically in the inner groove of the base. A sliding plate is slidably connected to the fixed seat inside the inner groove. The sliding plate and the fixed seat are arranged in a cross shape and are connected through the fixed seat.

[0010] Preferably, a slide bar is welded to one end of the slide plate, and a rack is welded to the other end of the slide plate. Teeth are provided on both ends of the rack, and the rack meshes with gears on both sides respectively.

[0011] Preferably, the mold inside the inner groove has a groove, the groove is opened vertically along the mold, the groove is located in the striking direction of the rubber hammer, and the groove is U-shaped in general.

[0012] Preferably, vertical rods are arranged on both sides of the opening of the groove, and each vertical rod is provided with a baffle. The diameter of the baffle is larger than the diameter of the vertical rod, and the baffles are arranged on the vertical rod.

[0013] Preferably, the rotating cylinder is located on the vertical rod between the two side baffles, and the rotating cylinders are respectively arranged on the upper and lower sides of the vertical rod. The gears on the rotating cylinders correspond to each other, and each rotating cylinder is welded with an extension seat.

[0014] Compared with the prior art, the beneficial effects of this application are as follows:

[0015] This magnetic powder molding process involves setting a base on a first support platform. An inner groove can be formed on the base, and a mold can be installed within this groove. Magnetic material is stored inside the mold and formed by being extruded by an extrusion head. Vertical rods are installed within the inner groove, located on the outer periphery of the mold and distributed on both sides of the groove opening. The groove is formed on the outer wall of the mold, at its thinnest point. When a rubber hammer strikes the groove, the magnetic material inside the mold vibrates. The rubber hammer is mounted on an extension seat and can move along the extension seat. During operation, the rubber hammer enters the groove as the drum rotates. The inner and outer walls of the groove have different thicknesses, causing the rubber hammer to change its position during rotation. The rubber hammer is connected to the extension seat, and as it moves to the groove, its position on the extension seat changes accordingly. This prevents the rubber hammer from being restricted by the groove during rotation and avoids mutual restriction of movement trajectories. By setting this mechanism, vibration of the magnetic material can be achieved, resulting in a more uniform distribution of the magnetic material within the mold, preventing clumping after pressing, and thus improving the production quality of the magnetic core.

[0016] This magnetic powder forming process involves setting gears on a rotating drum, which mesh with a rack. The rack has teeth on both sides, and gears on the vertical rods on both sides can also connect to the rack. The rotating drum is arranged vertically on the vertical rods, and the gears on the upper and lower sides can also mesh with the corresponding racks. When the rack moves, it simultaneously drives all the gears to rotate, which in turn causes the drum to swing the extension seat. A retaining bracket is installed on the extension seat, securing it to the upper and lower sides. The retaining bracket does not change position as it moves along the extension seat, thus preventing the rubber hammer on the retaining bracket from deviating. The extension seat has a protrusion at one end, which connects to a rod on the retaining seat. The rod can be inserted into the protrusion for secondary restraint of the retaining seat. A second spring is sleeved on the rod, which can push the retaining seat in the opposite direction. The retaining seat can then move the rubber hammer to the inner end of the groove. As the rubber hammer moves, the retaining seat moves along the extension seat due to the position of the rubber hammer, thus realizing the movement of the rubber hammer. When the rubber hammer rotates, it will not restrict the groove, thus not affecting the rotation of the rubber hammer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the top frame structure in this invention.

[0020] Figure 4 This is a schematic diagram of the inner groove in this invention.

[0021] Figure 5 This is a schematic diagram of the structure of the fixing base in this invention.

[0022] Figure 6 For the present invention Figure 4 A magnified structural diagram of region A in the middle.

[0023] Figure 7 For the present invention Figure 5 A magnified structural diagram of region B in the middle.

[0024] Figure 8 This is a schematic diagram of the insert rod in this invention.

[0025] In the diagram: 1. Chassis; 2. First cylinder; 3. Second cylinder; 4. First support platform; 5. Second support platform; 6. Third support platform; 7. Extrusion head; 8. Feed port; 9. Top frame; 10. Cover plate; 11. Base; 12. Inner groove; 13. Mold; 14. Slide plate; 15. Slide rod; 16. Top head; 17. First spring; 18. Fixed seat; 19. Baffle; 20. Vertical rod; 21. Rotary drum; 22. Rack; 23. Gear; 24. Second spring; 25. Insert rod; 26. Extension seat; 27. Groove; 28. Rubber hammer; 29. ​​Card seat; 30. Third cylinder. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] like Figures 1 to 8As shown, the present invention provides a magnetic powder forming process, including a machine housing 1, a feed inlet 8, a first cylinder 2, a second cylinder 3, a third cylinder 30, a first support 4, a second support 5, a third support 6, an extrusion head 7, and a mold 13. A base 11 is detachably connected to the second support 5 at the output end of the second cylinder 3. An inner groove 12 is formed on the base 11, and the mold 13 is welded into the inner groove 12. A vertical rod 20 is detachably connected to the inner groove 12 on the outer periphery of the mold 13. A rotating cylinder 21 is rotatably connected to the vertical rod 20. A gear 23 is provided on the rotating cylinder 21, and the gear 23 meshes with a rack 22. The input end of the rack 22... Located on the outside of the base 11, the other end of the rotating cylinder 21 is slidably connected to a rubber hammer 28. The mold 13 is located in the striking direction of the rubber hammer 28. A cover plate 10 is detachably connected to the inner groove 12 of the base 11. The cover plate 10 has the same shape as the inner groove 12 of the base 11. The cover plate 10 is hollow at the position corresponding to the mold 13. A retaining seat 29 is slidably connected to the extension seat 26. The retaining seat 29 is U-shaped. A rubber head is detachably connected to one end of the retaining seat 29. An insertion rod 25 is provided on the other end of the retaining seat 29. The insertion rod 25 is inserted into the protrusion of the extension seat 26. A second spring 24 is sleeved on the insertion rod 25. Before the magnetic core is formed, the equipment injects magnetic material into the mold 13. Then, the extrusion head 7 moves into the mold 13 to press and form the core. Before pressing, the top frame 9 on the third support 6 moves with the extrusion head 7. The top frame 9 pushes the top head 16, which in turn moves the slide rod 15 into the inner groove 12. The slide rod 15 eventually moves the rack 22, which in turn drives the rotating drum 21 to rotate. When the rotating drum 21 rotates, the rubber hammer 28 on the rotating drum 21 moves quickly towards the groove 27 to strike the core. The rubber hammer 28 is located on the upper and lower sides of the mold 13, which allows the magnetic material in the mold 13 to be evenly distributed, preventing clumping during pressing and improving the quality of the magnetic core. The second spring 24 pushes the card holder 29, changing its position. When the card holder 29 rotates with the extension seat 26, its position can be adjusted according to the groove 27.

[0030] The base 11 is rectangular in shape, with a sloping output end. Identical top brackets 9 are mounted on both sides of the base 11. The upper ends of the top brackets 9 are detachably connected to the corresponding third support platform 6. The top brackets 9 are vertically arranged on the third support platform 6, and their lower ends extend to the base 11. The base 11 allows for the opening of the inner groove 12, within which the mold 13 can be installed. Installing the rubber hammer 28 within the inner groove 12 does not interfere with the injection of magnetic material, thus preventing the components from mutually restricting each other.

[0031] A slide rod 15 is slidably connected to the base 11, passing through the base 11. One end of the slide rod 15 is located in the inner groove 12 of the base 11, and the other end is located on the outer side of the base 11. The outer end of the slide rod 15 on the base 11 corresponds to the top frame 9. The slide rod 15 and the top frame 9 are arranged in an L-shape. A top head 16 is detachably connected to the outer end of the slide rod 15 on the base 11. The top head 16 can be pushed by the top frame 9, which will drive the slide rod 15 to move into the inner groove 12, thereby driving the rack 22 to move.

[0032] In implementation, a base 11 is set on the first support platform 4, and an inner groove 12 can be opened on the base 11. A mold 13 can be installed in the inner groove 12 of the base 11. Magnetic material can be stored inside the mold 13. The magnetic material can be formed after being squeezed by the extrusion head 7. A vertical rod 20 is set in the inner groove 12. The vertical rod 20 is located on the outer periphery of the mold 13 and is distributed on both sides of the opening of the groove 27. The groove 27 is opened on the outer wall of the mold 13. The groove 27 is located at the thinnest part of the mold 13. When the rubber hammer 28 strikes the groove 27, the magnetic material inside the mold 13 can be vibrated. The rubber hammer 28 is mounted on the extension seat 26. As the rubber hammer 28 moves along the extension seat 26 and rotates with the rotating cylinder 21, it enters the groove 27. The inner and outer walls of the groove 27 have different thicknesses, so the position of the rubber hammer 28 changes during rotation. Through the movable connection of the rubber hammer 28 on the extension seat 26, when the rubber hammer 28 moves to the position of the groove 27, its position on the extension seat 26 changes accordingly. When the rubber hammer 28 rotates and strikes, it will not be restricted by the groove 27 and will not be unable to rotate, thus avoiding mutual restriction of the movement trajectory. By setting this, the vibration of the magnetic material can be realized, so that the magnetic material is more evenly distributed in the mold 13, preventing agglomeration after pressing, thereby improving the production quality of the magnetic core.

[0033] The top head 16 overlaps with the lower end of the top frame 9. The top head 16 is trapezoidal in shape, with one inclined side connected to the top frame 9. A first spring 17 is sleeved on the slide rod 15 between the top head 16 and the base 11. One end of the first spring 17 is detached and connected to the top head 16, and the other end is detached and connected to the base 11. The first spring 17 can push the top head 16 in the opposite direction. After the top frame 9 moves away, the first spring 17 can drive the top head 16 to reset, thereby causing the rack 22 to drive the rotating cylinder 21 to reset, thus enabling the next strike.

[0034] A fixed seat 18 is detachably connected to the inner groove 12 of the base 11. The fixed seat 18 is rectangular in shape and vertically arranged within the inner groove 12 of the base 11. A sliding plate 14 is slidably connected to the fixed seat 18 inside the inner groove 12. The sliding plate 14 and the fixed seat 18 are arranged in a cross shape, and the sliding plate 14 is connected through the fixed seat 18. The fixed seat 18 can restrict the sliding plate 14, thereby restricting the sliding rod 15 and the top head 16, thus preventing changes in the installation position and ensuring the pressure of the top frame 9 on the top head 16.

[0035] A sliding rod 15 is welded to one end of the sliding plate 14, and a rack 22 is welded to the other end of the sliding plate 14. The rack 22 has teeth on both sides, and the rack 22 meshes with the gears 23 on both sides. Through the connection between the sliding plate 14 and the rack 22, the sliding plate 14 is driven by the top head 16, which in turn drives the rack 22 to move.

[0036] A groove 27 is provided on the mold 13 inside the inner groove 12. The groove 27 is opened vertically along the mold 13 and is located in the striking direction of the rubber hammer 28. The groove 27 is U-shaped. The wall thickness of the mold 13 can be changed by the groove 27, so that the vibration can be better transmitted when the rubber hammer 28 strikes.

[0037] Vertical rods 20 are arranged on both sides of the opening of the groove 27, and each vertical rod 20 is equipped with a baffle 19. The diameter of the baffle 19 is larger than the diameter of the vertical rod 20, and the baffles 19 are all arranged on the vertical rod 20. The baffles 19 can be installed through the vertical rods 20, and the baffles 19 can restrict the rotating drum 21. When the rotating drum 21 is located between the baffles 19, it will not change position, thereby ensuring that the gear 23 of the rotating drum 21 meshes with the rack 22.

[0038] The rotating cylinder 21 is located on the vertical rod 20 between the two side baffles 19. The rotating cylinders 21 are arranged on the upper and lower sides of the vertical rod 20, and the gears 23 on the rotating cylinders 21 correspond to each other. Each rotating cylinder 21 is welded with an extension seat 26. The extension seat 26 can be driven by the rotating cylinder 21.

[0039] In practice, a gear 23 is installed on the rotating drum 21, and the gear 23 meshes with the rack 22. The rack 22 has teeth on both sides. The gears 23 on the vertical rods 20 on both sides can also connect to the rack 22. The rotating drum 21 is arranged vertically on the vertical rods 20, and the gears 23 on the upper and lower sides can also mesh with the corresponding racks 22. When the rack 22 moves, it can simultaneously drive all the gears 23 to rotate, and the rotating drum 21 can drive the extension seat 26 to swing. A retaining seat 29 is installed on the extension seat 26, and the retaining seat 29 is secured to the upper and lower sides of the extension seat 26. The retaining seat 29 does not change position when it moves along the extension seat 26, thus preventing the rubber hammer 28 on the retaining seat 29 from shifting. This ensures the impact on the mold 13. One end of the extension seat 26 is provided with a protrusion, which can be connected to the insertion rod 25 on the retainer 29. The insertion rod 25 can be inserted into the protrusion, thereby providing secondary restriction on the retainer 29. A second spring 24 is sleeved on the insertion rod 25. The second spring 24 can push the retainer 29 in the opposite direction, which can drive the rubber hammer 28 to move to the inner end of the groove 27. As the rubber hammer 28 moves, the retainer 29 will move along the extension seat 26 due to the position of the rubber hammer 28, thereby realizing the movement of the rubber hammer 28. When the rubber hammer 28 rotates, it will not restrict the groove 27, thus not affecting the rotation of the rubber hammer 28.

[0040] The working principle of this invention is as follows: A base 11 is set on the first support 4, and an inner groove 12 can be opened on the base 11. A mold 13 can be installed in the inner groove 12 of the base 11. Magnetic material can be stored inside the mold 13. The magnetic material can be formed after being squeezed by the extrusion head 7. A vertical rod 20 is set in the inner groove 12. The vertical rod 20 is located on the outer periphery of the mold 13 and is distributed on both sides of the opening of the groove 27. The groove 27 is opened on the outer wall of the mold 13. The groove 27 is located at the thinnest part of the mold 13. When the rubber hammer 28 strikes the groove 27, the magnetic material inside the mold 13 can be vibrated. The rubber hammer 28 is installed on the extension seat 2. On the 6th, the rubber hammer 28 can move along the extension seat 26. When the rubber hammer 28 rotates with the rotating cylinder 21, it will enter the groove 27. The inner and outer walls of the groove 27 have different thicknesses, so the position of the rubber hammer 28 will change during rotation. Through the movable connection of the rubber hammer 28 on the extension seat 26, when the rubber hammer 28 moves to the position of the groove 27, its position on the extension seat 26 will change accordingly. When the rubber hammer 28 rotates and strikes, it will not be restricted by the groove 27 and will not be unable to rotate, thus avoiding mutual restriction of the movement trajectory. By setting it, the vibration of the magnetic material can be realized, so that the magnetic material is more evenly distributed in the mold 13, preventing the formation of defects after pressing. To prevent clumping and improve the production quality of the magnetic core, gears 23 are installed on the rotating drum 21 and mesh with rack 22. Both sides of the rack 22 have teeth. Gears 23 on the vertical rods 20 on both sides can also connect to the rack 22. The rotating drum 21 is arranged vertically on the vertical rods 20, and the gears 23 on the upper and lower sides can also mesh with the corresponding racks 22. When the rack 22 moves, it can simultaneously drive all the gears 23 to rotate, which in turn drives the extension seat 26 to swing. A retaining seat 29 is installed on the extension seat 26, securing it to the upper and lower sides. The retaining seat 29 does not change position when moving along the extension seat 26, thus preventing the rubber hammers on the retaining seat 29 from moving. 28 deflects, thus ensuring the impact on mold 13. A protrusion is provided on one end of extension seat 26, which can be connected to the insertion rod 25 on the retainer 29. The insertion rod 25 can be inserted into the protrusion, thereby providing secondary restriction of retainer 29. A second spring 24 is sleeved on the insertion rod 25, which can push retainer 29 in the opposite direction. Retainer 29 can drive rubber hammer 28 to move to the inner end of groove 27. As rubber hammer 28 moves, retainer 29 moves along extension seat 26 due to the position of rubber hammer 28, thereby realizing the movement of rubber hammer 28. When rubber hammer 28 rotates, it will not restrict each other with groove 27, thus not affecting the rotation of rubber hammer 28.

[0041] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A magnetic powder forming process, comprising a housing (1), a feed inlet (8), a first cylinder (2), a second cylinder (3), a third cylinder (30), a first support (4), a second support (5), a third support (6), an extrusion head (7), and a mold (13), characterized in that: A base (11) is detachably connected to the second support (5) at the output end of the second cylinder (3). An inner groove (12) is provided on the base (11). A mold (13) is welded into the inner groove (12). A vertical rod (20) is detachably connected to the inner groove (12) on the outer periphery of the mold (13). A rotating cylinder (21) is rotatably connected to the vertical rod (20). A gear (23) is provided on the rotating cylinder (21). A rack (22) is meshed with the gear (23). The input end of the rack (22) is located outside the base (11). A rubber hammer (28) is slidably connected to the other end of the rotating cylinder (21). The mold (13) is located in the striking direction of the rubber hammer (28). A cover plate (10) is detachably connected to the inner groove (12) of the base (11). The inner groove (12) of the base (11) has the same shape. The cover plate (10) is hollow at the position corresponding to the mold (13). The rotating cylinder (21) is located on the vertical rod (20) between the two side baffles (19). The rotating cylinders (21) are arranged on the upper and lower sides of the vertical rod (20). The gears (23) on the rotating cylinders (21) correspond to each other. Each rotating cylinder (21) is welded with an extension seat (26). A card seat (29) is slidably connected to the extension seat (26). The card seat (29) is U-shaped. A rubber head is detachably connected to one end of the card seat (29). A plug rod (25) is provided on the other end of the card seat (29). The plug rod (25) is inserted into the protrusion of the extension seat (26). A second spring (24) is sleeved on the plug rod (25).

2. The magnetic powder forming process as described in claim 1, characterized in that: The base (11) is rectangular in shape. The output end of the base (11) is sloped. The base (11) has a top frame (9) with the same structure on both sides. The upper end of the top frame (9) is detached and connected to the corresponding third support (6). The top frame (9) is vertically arranged on the third support (6). The lower end of the top frame (9) extends to the base (11).

3. The magnetic powder forming process as described in claim 1, characterized in that: A slide rod (15) is slidably connected to the base (11). The slide rod (15) is connected through the base (11). One end of the slide rod (15) is located in the inner groove (12) of the base (11), and the other end of the slide rod (15) is located on the outside of the base (11). The end of the slide rod (15) on the outside of the base (11) corresponds to the top frame (9). The slide rod (15) and the top frame (9) are arranged in an L-shape. A top head (16) is detachably connected to the end of the slide rod (15) on the outside of the base (11).

4. The magnetic powder forming process as described in claim 3, characterized in that: The top head (16) overlaps with the lower end of the top frame (9). The top head (16) is generally trapezoidal. One side of the top head (16) is connected to the top frame (9). A first spring (17) is sleeved on the slide rod (15) between the top head (16) and the base (11). One end of the first spring (17) is detached and connected to the top head (16), and the other end of the first spring (17) is detached and connected to the base (11).

5. The magnetic powder forming process as described in claim 1, characterized in that: A fixed seat (18) is detachably connected to the inner groove (12) of the base (11). The fixed seat (18) is rectangular in shape and is arranged vertically in the inner groove (12) of the base (11). A sliding plate (14) is slidably connected to the fixed seat (18) inside the inner groove (12). The sliding plate (14) and the fixed seat (18) are arranged in a cross shape. The sliding plate (14) is connected through the fixed seat (18).

6. The magnetic powder forming process as described in claim 5, characterized in that: A slide bar (15) is welded to one end of the slide plate (14), and a rack (22) is welded to the other end of the slide plate (14). The rack (22) has teeth on both sides, and the rack (22) meshes with gears (23) on both sides respectively.

7. The magnetic powder forming process as described in claim 1, characterized in that: The mold (13) inside the inner groove (12) has a groove (27) which is opened along the vertical direction of the mold (13). The groove (27) is located in the striking direction of the rubber hammer (28). The groove (27) is U-shaped in general.

8. The magnetic powder forming process as described in claim 7, characterized in that: Vertical rods (20) are arranged on both sides of the opening of the groove (27), and each vertical rod (20) is provided with a baffle (19). The diameter of the baffle (19) is larger than the diameter of the vertical rod (20), and the baffles (19) are arranged on the vertical rod (20).

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