A magnetic material powder forming device

By using a combination of electromagnets and electric push rods in magnetic material powder molding equipment, the problem of unidirectional magnetic distribution of powder materials during the molding process is solved, and uniform mixing and efficient molding of magnetic materials are achieved.

CN117259757BActive Publication Date: 2025-09-16JIANGXI TONGDA MAGNETOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202311138388.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-05
Publication Date
2025-09-16
Estimated Expiration
2043-09-05

AI Technical Summary

Technical Problem

Existing magnetic powder material molding equipment cannot effectively disturb and mix the powder material when adding it, resulting in regular unidirectional magnetic distribution after molding, which is difficult to meet the uniformity requirements.

Method used

The magnetic material powder forming equipment is used. By setting the first electromagnet and the second electromagnet, the cake-shaped magnetic material is suspended and rotated irregularly during the extrusion process. Combined with the propulsion of the electric push rod and the extrusion of the extrusion male head, the uniform mixing and high-pressure forming of the powder material are achieved.

Benefits of technology

The uniform mixing and efficient extrusion molding of magnetic powder materials are achieved, ensuring that the molded magnetic materials have good density performance and production efficiency.

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Abstract

The present invention belongs to the technical field of material forming equipment, and in particular to a magnetic material powder forming equipment. In view of the technical problem that the existing pressing and forming equipment cannot perform internal disturbance and mixing when feeding powder materials, the following scheme is proposed, including a fixed base, a driving slide groove is provided at the middle position of the top of the fixed base, and limited side grooves are provided at both sides of the top of the fixed base, and a first slider and a second slider are provided on the top of the fixed base. The powder material of the present invention passes through the interior of the powder feeding chamber. In the process of the magnetic material powder passing through the powder feeding chamber, the third electric push rod is extended to push the tableting block out and extrude it into the tableting groove, and the magnetic material powder passing through at this time is squeezed into a cake with an arc edge. On one side of the cake-shaped magnetic material, a magnetic material convex point formed by the inner point groove will also be formed. Before extrusion molding, several cake-shaped magnetic materials are formed by the tablet press box and fall into the interior of the extrusion mother groove.
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Description

Technical Field

[0001] The present invention relates to the technical field of material forming equipment, in particular to a magnetic material powder forming equipment. Background Art

[0002] The material forming process is to prepare the required finished products through various processing methods on raw materials. In material forming equipment, the forming of powder materials through high-pressure pressing has a faster preparation efficiency. In metal powder material forming, the production of finished gears and sleeves is often prepared by powder pressing. The pressing molding of magnetic powder materials can press the magnetic powder materials into shape in one go, with good density performance and a fast and efficient production process.

[0003] The existing magnetic powder material pressing and molding process has the following problems: Since powder molding is the process of filling powder into a groove and stamping it, the magnetic powder material contains magnetic powder inside. During the filling process, the internal powder has magnetism. When the powder material is poured, the internal magnetic powder is sorted in an orderly manner. The magnetic distribution of the finished magnetic material parts after pressing is regular unidirectional magnetism. The existing pressing and molding equipment cannot disturb and mix the powder material inside when pouring it, and the existing technology is not easy to solve such problems. Therefore, there is an urgent need for magnetic material powder molding equipment to solve the above problems. Summary of the Invention

[0004] Based on the technical problem that existing pressing and molding equipment cannot perform internal disturbance mixing when adding powder materials, the present invention proposes a magnetic material powder molding equipment.

[0005] The present invention proposes a magnetic material powder molding device, including a fixed base, a driving slide groove is provided at the middle position of the top of the fixed base, and limited side grooves are provided at both sides of the top of the fixed base. A first slider and a second slider are slidably provided on the top of the fixed base, the top of the first slider is fixed with a molding male seat by bolts, and the top of the second slider is fixed with a molding female seat by bolts. A sealed extrusion chamber is provided in the middle of one end of the molding male seat close to the molding female seat, and an extrusion male head is slidably engaged with the inner wall of the sealed extrusion chamber. Two fourth electric push rods are fixed to the inner wall of the other end of the sealed extrusion chamber by bolts, and one end of the output shaft of the two fourth electric push rods is in contact with the extrusion male head but not fixed. An extrusion female groove is provided at one end of the molding female seat close to the molding male seat, and the opening size of the extrusion female groove matches the size of the extrusion male head. A tablet press box is fixed to the top of the tablet press box by bolts, and a feed powder box is fixed to the top of the tablet press box by bolts. Two support columns are fixed between one end of the bottom of the feed powder box and the top of the molding female seat.

[0006] Preferably, sliders are fixed to the bottoms of the first slider and the second slider, and the sliders are respectively slidably engaged with the inner walls of both sides of the limiting side groove and the driving sliding groove.

[0007] Preferably, both ends of the fixed base are fixed with closed end covers by bolts, and the same bidirectional sliding screw is sleeved with a bearing at an internal position of the driving slide groove between the two closed end covers, and a motor fixing seat is fixed with bolts in the middle position of the closed end cover at one end, and the motor fixing seat is fixed to one end of the bidirectional sliding screw, and the first slider and the second slider located inside the driving slide groove are both threadedly sleeved with the circumferential outer wall of the bidirectional sliding screw.

[0008] Preferably, two horizontally arranged alignment rods are fixed on the top and bottom of one end of the molding female seat, and two alignment slots are provided on the top and bottom of one end of the molding male seat. The alignment rods and the alignment slots are correspondingly sealed and plugged in, and a sealed air guide cavity that is in communication with the alignment slots and the sealed extrusion chamber is provided.

[0009] Preferably, a powder feeding slot is provided at the bottom of the feeding powder box, and a feeding mechanism is provided at the top of the feeding powder box, the feeding mechanism includes a fixed top plate fixed to the top of the feeding powder box by bolts, a first electric push rod is fixed to the bottom of the fixed top plate by bolts, a powder pushing wedge is fixed to the bottom output shaft of the first electric push rod by bolts, the side cross-section of the powder pushing wedge is a wedge-shaped structure, and the size of the powder pushing wedge matches the opening size of the powder feeding slot.

[0010] Preferably, a vertical powder feed cavity is provided between the top and bottom of the tablet press box, the top of the powder feed cavity is communicated with the powder feed slot in the feed powder box, and the bottom of the powder feed cavity is communicated with the extrusion mother groove in the forming mother seat.

[0011] Preferably, a tablet pressing mechanism is provided inside the tablet pressing machine case, and the tablet pressing mechanism includes a third electric push rod embedded and fixed on the inner wall of one end of the tablet pressing machine case, and the output shaft of the third electric push rod is fixed with a tablet pressing block by bolts. The tablet pressing mechanism also includes a tablet pressing groove provided on the inner wall of the other end of the tablet pressing machine case, and the tablet pressing groove is a curved surface structure, and the tablet pressing block fits and matches the curved surface of the tablet pressing groove, and the inner wall of the tablet pressing groove is provided with an inner point groove.

[0012] Preferably, a lifting mechanism is provided on the inner wall of one end of the molding base, and the lifting mechanism includes two second electric push rods embedded and fixed on the inner wall of one end of the molding base, and the output shafts of the two second electric push rods are fixed with lifting blocks, and the lifting blocks are embedded in the inner wall of the molding base, and the side surfaces of the lifting blocks are aligned with the inner wall of the extrusion groove.

[0013] Preferably, a first electromagnet is fixed on the bottom inner wall of the molding seat at the bottom position of the extrusion groove, and a second electromagnet is fixed on the inner wall of one end of the molding seat at the surrounding position of the extrusion groove, and the second electromagnet surrounds the extrusion groove.

[0014] The beneficial effects of the present invention are:

[0015] 1. The magnetic material powder forming equipment is arranged such that during the process of the magnetic material powder being extruded and descending, the magnetic material powder first passes through the inside of the powder feeding chamber. During the process of the magnetic material powder passing through the powder feeding chamber, the third electric push rod is extended to push the tableting block out and squeeze it into the tableting groove, thereby squeezing the magnetic material powder passing through at this time into a cake shape with an arc edge. A magnetic material convex point formed by the inner point groove is also formed on one side of the cake-shaped magnetic material. Before extrusion molding, several cake-shaped magnetic materials are formed by the tablet pressing machine box and fall into the inside of the extrusion mother groove.

[0016] 2. The magnetic material powder forming equipment suspends the internal cake-shaped magnetic material through the conductive work of the first electromagnet, and causes the cake-shaped magnetic material inside the extrusion mother groove to rotate irregularly inside the extrusion mother groove through the work of the second electromagnet. At the same time, the first electric push rod on the top continues to run to fill sufficient magnetic material powder into the extrusion mother groove. The continuous rotation of the cake-shaped magnetic material enables the internal magnetic powder material to achieve a uniform mixing process.

[0017] 3. The magnetic material powder molding equipment, the molding male seat and the molding female seat are continuously approached to extrude the male head to extrude the magnetic powder material into shape, and when approaching, the alignment rod is extended into the alignment slot, and with the continuous compression process, the air inside is squeezed into the sealed air guide cavity, and the magnetic powder material inside the extrusion female groove is extruded and molded by high pressure through the compressed air supply of the sealed air guide cavity and the extrusion of the fourth electric push rod. The formed magnetic material is pushed out of the extrusion female groove by the extension of the second electric push rod, completing the extrusion molding and discharge of the magnetic powder material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic side view of the overall structure of a magnetic material powder molding device proposed by the present invention;

[0019] Figure 2 This is a schematic top view of the overall structure of a magnetic material powder molding device proposed in the present invention;

[0020] Figure 3 This is a schematic side cross-sectional view of the overall structure of a magnetic material powder molding device proposed by the present invention;

[0021] Figure 4This is an enlarged schematic diagram of the structure of part A of a magnetic material powder molding device proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of a tablet press box of a magnetic material powder molding device proposed in the present invention.

[0023] In the figure: 1. Fixed base; 2. First slider; 3. Motor fixing base; 4. Closed end cover; 5. Limiting side groove; 6. Driving slide; 7. Molding male seat; 8. Extrusion male head; 9. Alignment plug; 10. Molding female seat; 11. Extrusion female groove; 12. Tablet press box; 13. Feed powder box; 14. Second slider; 15. Fixed top plate; 16. First electric push rod; 17. Powder pushing wedge; 18. Powder feed slot hole; 19. Bidirectional sliding screw; 20. Alignment slot; 21. Sealed air guide cavity; 22. Sealed extrusion chamber; 23. First electromagnet; 24. Second electromagnet; 25. Second electric push rod; 26. Powder feed cavity; 27. Tablet pressing groove; 28. Tablet pressing block; 29. ​​Third electric push rod; 30. Inner point groove; 31. Fourth electric push rod. DETAILED DESCRIPTION

[0024] Reference Figure 1-Figure 5 A magnetic material powder molding device includes a fixed base 1, a driving slide 6 is provided at the middle position of the top of the fixed base 1, and limited side grooves 5 are provided at both sides of the top of the fixed base 1. A first slider 2 and a second slider 14 are slidably provided on the top of the fixed base 1. A molding male seat 7 is fixed to the top of the first slider 2 by bolts, and a molding female seat 10 is fixed to the top of the second slider 14 by bolts. A sealed extrusion chamber 22 is provided in the middle of one end of the molding male seat 7 close to the molding female seat 10, and an extrusion male head 8 is slidably connected to the inner wall of the sealed extrusion chamber 22. 7 is located on the inner wall at the other end of the sealed extrusion chamber 22 and is fixed with two fourth electric push rods 31 by bolts. One end of the output shaft of the two fourth electric push rods 31 is in contact with the extrusion male head 8 but is not fixed. An extrusion female groove 11 is provided at one end of the forming female seat 10 close to the forming male seat 7, and the opening size of the extrusion female groove 11 matches the size of the extrusion male head 8. A tablet press case 12 is fixed to the top of the tablet press case 12 by bolts, and a feed powder box 13 is fixed to the top of the tablet press case 12 by bolts. Two support columns are fixed between the bottom end of the feed powder box 13 and the top of the forming female seat 10.

[0025] Furthermore, sliders are fixed to the bottoms of the first slider 2 and the second slider 14, and the sliders are respectively slidably engaged with the inner walls of the limiting side groove 5 and the driving slide groove 6;

[0026] Furthermore, both ends of the fixed base 1 are fixed with closed end covers 4 by bolts, and the same bidirectional sliding screw 19 is sleeved with a bearing at an inner position of the driving chute 6 between the two closed end covers 4, and a motor fixing seat 3 is fixed with bolts in the middle position of the closed end cover 4 at one end, and the motor fixing seat 3 is fixed to one end of the bidirectional sliding screw 19, and the first slider 2 and the second slider 14 are located inside the driving chute 6 and are both threadedly sleeved with the circumferential outer wall of the bidirectional sliding screw 19;

[0027] Furthermore, two horizontally arranged alignment rods 9 are fixed to the top and bottom of one end of the molding female seat 10, and two alignment slots 20 are provided at the top and bottom of one end of the molding male seat 7. The alignment rods 9 are correspondingly and sealedly plugged into the alignment slots 20, and a sealed air guide channel 21 is provided between the alignment slots 20 and the sealed extrusion chamber 22.

[0028] Furthermore, a powder feeding slot 18 is provided at the bottom of the feeding powder box 13, and a feeding mechanism is provided at the top of the feeding powder box 13. The feeding mechanism includes a fixed top plate 15 fixed to the top of the feeding powder box 13 by bolts, a first electric push rod 16 is fixed to the bottom of the fixed top plate 15 by bolts, and a powder pushing wedge 17 is fixed to the bottom output shaft of the first electric push rod 16 by bolts. The side cross-section of the powder pushing wedge 17 is a wedge-shaped structure, and the size of the powder pushing wedge 17 matches the opening size of the powder feeding slot 18;

[0029] Furthermore, a vertical powder feed channel 26 is provided between the top and bottom of the tablet press housing 12. The top of the powder feed channel 26 is in communication with the powder feed slot 18 in the feed powder box 13, and the bottom of the powder feed channel 26 is in communication with the extrusion groove 11 in the forming base 10.

[0030] Furthermore, a tablet pressing mechanism is provided inside the tablet pressing box 12, which includes a third electric push rod 29 fixedly engaged with the inner wall of one end of the tablet pressing box 12, and a tablet pressing block 28 is fixed to the output shaft of the third electric push rod 29 by bolts. The tablet pressing mechanism also includes a tablet pressing groove 27 provided on the inner wall of the other end of the tablet pressing box 12, and the tablet pressing groove 27 is provided with an arc surface structure, and the tablet pressing block 28 fits the arc surface of the tablet pressing groove 27, and an inner point groove 30 is provided on the inner wall of the tablet pressing groove 27;

[0031] Furthermore, a material ejection mechanism is provided on the inner wall of one end of the molding base 10. The material ejection mechanism includes two second electric push rods 25 fixedly engaged with the inner wall of one end of the molding base 10. The output shafts of the two second electric push rods 25 are fixed with a material ejection block, and the material ejection block is engaged with the inner wall of the molding base 10. The side surface of the material ejection block is aligned with the inner wall of the extrusion groove 11.

[0032] Furthermore, a first electromagnet 23 is fixed on the bottom inner wall of the molding seat 10 at the bottom position of the extrusion groove 11, and a second electromagnet 24 is fixed on the inner wall of one end of the molding seat 10 at the surrounding position of the extrusion groove 11, and the second electromagnet 24 surrounds the extrusion groove 11.

[0033] When the present invention is used: the fixed base 1 of the device is fixed on the working table position, and it is fixed and stable. The magnetic material powder that needs to be compressed and molded is placed on the top of the feeding powder box 13 of the device. The internal bidirectional sliding screw 19 is driven by the driving motor to rotate, so that the first slider 2 and the second slider 14 can move closer to or away from each other. When powder molding is performed, the top molding male seat 7 and the molding female seat 10 are controlled by the driving motor to move closer to each other, and one end of the extrusion male head 8 is slightly embedded in the extrusion female groove 11. At this time, the first The reciprocating extension and contraction process of the electric push rod 16 causes the powder pushing wedge 17 to descend, and pushes the magnetic material powder in the feeding powder box 13 into the extrusion mother groove 11 at the bottom through the powder feeding slot hole 18. In the process of the magnetic material powder being extruded and descending, it will first pass through the inside of the powder feeding chamber 26. In the process of the magnetic material powder passing through the powder feeding chamber 26, the third electric push rod 29 extends to push the tableting block 28 out and squeeze it with the tableting slot 27, squeezing the magnetic material powder that passes through at this time into a cake shape with an arc edge. On one side of the cake-shaped magnetic material, a groove 30 formed by the inner point will also be formed. The magnetic material protrusions are formed into several cake-shaped magnetic materials by the tablet press box 12 before extrusion molding and fall into the interior of the extrusion mother groove 11. The conductive work of the first electromagnet 23 makes the internal cake-shaped magnetic materials suspended. The work of the second electromagnet 24 makes the cake-shaped magnetic materials inside the extrusion mother groove 11 rotate irregularly inside the extrusion mother groove 11. At the same time, the first electric push rod 16 at the top continues to operate to fill sufficient magnetic material powder into the interior of the extrusion mother groove 11. The continuous rotation of the cake-shaped magnetic material makes the internal magnetic powder material uniform. During the mixing process, as the molding male seat 7 and the molding female seat 10 continue to approach the extrusion male head 8 to extrude the magnetic powder material, and when they approach, the alignment rod 9 extends into the alignment slot 20, and as the compression process continues, the air inside is squeezed into the sealed air guide cavity 21. Through the compressed air supply of the sealed air guide cavity 21 and the extrusion of the fourth electric push rod 31, the magnetic powder material inside the extrusion female groove 11 is extruded and molded by high pressure. The formed magnetic material is pushed out of the extrusion female groove 11 by the extension of the second electric push rod 25, completing the extrusion molding and discharge of the magnetic powder material.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A magnetic material powder forming device, comprising a fixed base (1), a driving slide groove (6) is provided at the middle position of the top of the fixed base (1), and limited side grooves (5) are provided at both sides of the top of the fixed base (1), and a first slider (2) and a second slider (14) are provided on the top of the fixed base (1), characterized in that: The top of the first slider (2) is fixed with a forming male seat (7) by bolts, and the top of the second slider (14) is fixed with a forming female seat (10) by bolts. A sealed extrusion chamber (22) is provided in the middle of one end of the forming male seat (7) close to the forming female seat (10), and an extrusion male head (8) is slidably engaged with the inner wall of the sealed extrusion chamber (22). Two fourth electric push rods (31) are fixed to the inner wall of the other end of the forming male seat (7) by bolts. The two fourth electric push rods (31) One end of the output shaft is in contact with the extrusion male head (8) but not fixed, an extrusion female groove (11) is provided at one end of the molding female seat (10) close to the molding male seat (7), and the opening size of the extrusion female groove (11) matches the size of the extrusion male head (8), a tablet press box (12) is fixed to the top of the molding female seat (10) by bolts, a feed powder box (13) is fixed to the top of the tablet press box (12) by bolts, and two support columns are fixed between the bottom end of the feed powder box (13) and the top of the molding female seat (10); A powder feeding cavity (26) is provided vertically between the top and bottom of the tablet press case (12), the top of the powder feeding cavity (26) is in communication with the powder feeding slot hole (18) in the feeding powder box (13), and the bottom of the powder feeding cavity (26) is in communication with the extrusion mother groove (11) in the forming mother seat (10). A tablet pressing mechanism is provided inside the tablet press case (12), the tablet pressing mechanism includes a third electric push rod (29) fixedly engaged with the inner wall of one end of the tablet press case (12), the output shaft of the third electric push rod (29) is fixed with a tablet pressing block (28) by bolts, the tablet pressing mechanism also includes a tablet pressing groove (27) provided on the inner wall of the other end of the tablet press case (12), the tablet pressing groove (27) is an arc surface structure, and the tablet pressing block (28) is matched with the arc surface of the tablet pressing groove (27), and the inner wall of the tablet pressing groove (27) is provided with an inner point groove (30); The bottom inner wall of the forming base (10) is located at the bottom position of the extrusion groove (11) and is fixed with a first electromagnet (23); the inner wall of one end of the forming base (10) is located at the surrounding position of the extrusion groove (11) and is fixed with a second electromagnet (24), and the second electromagnet (24) surrounds the extrusion groove (11).

2. A magnetic material powder forming device according to claim 1, characterized in that: Slide blocks are fixed to the bottoms of the first slide block (2) and the second slide block (14), and the slide blocks are respectively slidably engaged with the inner walls of both sides of the limiting side groove (5) and the driving slide groove (6).

3. A magnetic material powder forming device according to claim 2, characterized in that: Both ends of the fixed base (1) are fixed with closed end covers (4) by bolts, and a same bidirectional sliding screw (19) is sleeved with a bearing at an inner position of the driving slide groove (6) between the two closed end covers (4), and a motor fixing seat (3) is fixed with bolts at a middle position of the closed end cover (4) at one end, and the motor fixing seat (3) is fixed to one end of the bidirectional sliding screw (19), and the first slider (2) and the second slider (14) are located inside the driving slide groove (6) and are both sleeved with a thread on the circumferential outer wall of the bidirectional sliding screw (19).

4. The magnetic material powder forming equipment according to claim 1, characterized in that: Two horizontally arranged alignment rods (9) are fixed at the top and bottom of one end of the molding female seat (10), and two alignment slots (20) are provided at the top and bottom of one end of the molding male seat (7). The alignment rods (9) and the alignment slots (20) are correspondingly sealed and plugged in, and a sealed air guide cavity (21) is provided between the alignment slots (20) and the sealed extrusion chamber (22).

5. The magnetic material powder forming equipment according to claim 1, characterized in that: A powder feeding slot (18) is provided at the bottom of the feeding powder box (13), and a feeding mechanism is provided at the top of the feeding powder box (13), wherein the feeding mechanism comprises a fixed top plate (15) fixed to the top of the feeding powder box (13) by bolts, a first electric push rod (16) is fixed to the bottom of the fixed top plate (15) by bolts, and a powder pushing wedge (17) is fixed to the bottom output shaft of the first electric push rod (16) by bolts, wherein the side cross-section of the powder pushing wedge (17) is a wedge-shaped structure, and the size of the powder pushing wedge (17) matches the opening size of the powder feeding slot (18).

6. The magnetic material powder forming equipment according to claim 1, characterized in that: A material ejection mechanism is provided on the inner wall of one end of the molding base (10), and the material ejection mechanism comprises two second electric push rods (25) fixedly engaged with the inner wall of one end of the molding base (10), and the output shafts of the two second electric push rods (25) are both fixed with a material ejection block, and the material ejection block is engaged with the inner wall of the molding base (10), and the side surface of the material ejection block is aligned with the inner wall of the extrusion groove (11).

Citation Information

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