CN117620053A

CN117620053A - Cemented carbide extrusion forming device and method thereof

Info

Publication number: CN117620053A
Application number: CN202311705612.6A
Authority: CN
Inventors: 李世富; 朱云新
Original assignee: Zhuzhou Kunrui Carbide Co ltd
Current assignee: Zhuzhou Kunrui Carbide Co ltd
Priority date: 2023-12-13
Filing date: 2023-12-13
Publication date: 2024-03-01

Abstract

The invention relates to the technical field of hard alloy extrusion molding, and discloses a hard alloy extrusion molding device and a method thereof, which solve the problems that when the ejection force of an ejection structure is large, the ejection structure is easy to leave an indentation on a molding part and needs secondary processing in later period; the gravity of the formed part provides assistance for demolding, so that the force of the magnetic ejection structure on the formed part is reduced, the formed part is convenient to demold, the possibility of leaving an indentation on the formed part is reduced, and the reject ratio is reduced.

Description

Cemented carbide extrusion forming device and method thereof

Technical Field

The invention belongs to the technical field of hard alloy extrusion molding, and particularly relates to a hard alloy extrusion molding device and a hard alloy extrusion molding method.

Background

In the production and processing process of hard alloy workpieces, hot extrusion molding is usually carried out on alloy raw materials, so that workpieces with different shapes and structures can be obtained according to different shapes and structures of a die, after the alloy raw materials are molded in the die, the molded parts are ejected through an ejection structure, wherein the molded parts can be adhered to the inner wall of a die cavity, the ejection structure also needs to overcome the gravity of the molded parts additionally, the molded parts can be ejected from the die, meanwhile, when the temperature of the molded parts positioned in the die is higher, and the ejection force of the ejection structure is larger, the ejection structure is easy to leave an indentation on the molded parts, and further needs to carry out secondary processing in a later period, so that certain limitation exists.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a hard alloy extrusion molding device and a hard alloy extrusion molding method, which effectively solve the problems that when the ejection force of an ejection structure in the background art is large, the ejection structure is easy to leave an indentation on a molded part and secondary processing is required in the later stage.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a carbide extrusion device, the on-line screen storage device comprises a base, the top of base is equipped with the pivot, the bottom and the base of pivot pass through bearing connection, the outside cover of pivot is equipped with the supporting sleeve, the junction of supporting sleeve and pivot is equipped with the bearing, the outside cover of supporting sleeve is equipped with the supporting ring, supporting ring and supporting sleeve are connected through a plurality of first connecting plates, the top of base is equipped with a plurality of bed dies, fixedly connected with first connecting axle on the bed die, the outside cover of first connecting axle is equipped with the mount, the junction of first connecting axle and mount is equipped with the bearing, mount and supporting ring fixed connection, bed die and base pass through rotary support unit connection, the outside cover of pivot is equipped with the rotating sleeve that is located the supporting sleeve below, the junction of rotating sleeve and pivot is equipped with the bearing, rotating sleeve and first connecting axle pass through damping revolution mechanic connection, fixedly connected with two supporting blocks on the first connecting axle, one side of first connecting axle is equipped with the retaining plate, the retaining plate contacts with the bottom of one of them supporting block, fixedly connected with two pressing posts on the bottom of lifting frame, retaining plate and supporting ring pass through sliding adjustment piece connection, be equipped with the first rotating device that is used for driving the rotating sleeve and the bearing bracket, be equipped with the first lifting frame and the top of lifting frame is equipped with the supporting frame through the rotating device that is equipped with the supporting frame and the top of the lifting frame through the rotating device, the lifting frame and the top of the lifting frame is equipped with the fixed die through the fixed connection.

Preferably, the sliding adjusting piece comprises a fixed block fixedly arranged at the top of the stop plate, an inclined surface matched with the pressing column is arranged on the fixed block, a first support plate is arranged on one side of the stop plate, the first support plate is connected with the support ring through a second connecting plate, a sliding groove is formed in the first support plate, one end of the stop plate is located in the sliding groove, and the stop plate is connected with the inner wall of the sliding groove through a compression spring.

Preferably, the damping rotating structure comprises a plurality of first bevel gears arranged between the supporting sleeve and the supporting ring, a second connecting shaft is fixedly connected to the first bevel gears, one end of the second connecting shaft, far away from the first bevel gears, penetrates through the supporting ring, a bearing is arranged at the joint of the second connecting shaft and the supporting ring, the second bevel gears are sleeved outside the rotating shaft, the bottoms of the second bevel gears are fixedly connected with the tops of the rotating sleeves, the first bevel gears are meshed with the second bevel gears, a first damping disc is fixedly connected to the second connecting shaft, a second damping disc is fixedly connected to the first connecting shaft, and the second damping disc is contacted with the first damping disc.

Preferably, the first driver comprises a first motor fixedly mounted at the bottom of the supporting ring, the output end of the first motor is fixedly connected with a first gear, the outer fixed sleeve of the rotary sleeve is provided with a gear ring, and the gear ring is meshed with the first gear.

Preferably, the rotary supporting unit comprises a supporting shaft fixedly mounted on the lower die, a second supporting plate is sleeved outside the supporting shaft, a bearing is arranged at the joint of the supporting shaft and the second supporting plate, and the bottom of the second supporting plate is fixedly connected with the base.

Preferably, the magnetic attraction ejection structure comprises an iron plate fixedly arranged at the bottom of the lifting frame, a plurality of ejection grooves are formed in the inner wall of a cavity of the lower die, an ejection iron plate is arranged in the ejection grooves, a movable rod is fixedly connected to the ejection iron plate, one end of the movable rod, far away from the ejection iron plate, penetrates through the lower die, a magnet ring is sleeved outside the movable rod, the magnet ring and the ejection iron plate are magnetically attracted, one side, far away from the ejection iron plate, of the magnet ring is fixedly connected with the inner wall of the ejection grooves, and one end, far away from the ejection iron plate, of the movable rod is fixedly connected with a magnet block matched with the iron plate.

Preferably, the height adjusting piece comprises a top plate fixedly arranged at the top end of the rotating shaft, and the bottom of the top plate is connected with the lifting frame through a plurality of hydraulic telescopic rods.

Preferably, the damping lifting assembly comprises a third connecting shaft arranged above the supporting seat, a first supporting part is sleeved outside the third connecting shaft, a bearing is arranged at the joint of the third connecting shaft and the first supporting part, the first supporting part is fixedly connected with the supporting seat, one end of the third connecting shaft is fixedly connected with a third bevel gear, the other end of the third connecting shaft is fixedly connected with a third damping disc, the bottom of the rotating sleeve is fixedly connected with a fourth bevel gear, the rotating shaft penetrates through the fourth bevel gear, the third bevel gear is meshed with the fourth bevel gear, one side of the third damping disc is provided with a fourth connecting shaft, a second supporting part is sleeved outside the fourth connecting shaft, a bearing is arranged at the joint of the second supporting part and the fourth connecting shaft, the second supporting part is fixedly connected with the supporting seat, the fourth damping disc is fixedly connected with the third damping disc, the outer fixedly sleeved outside the fourth connecting shaft is provided with a second gear, the bottom of the fourth damping disc is fixedly connected with a toothed plate, the toothed plate is meshed with the second bevel gear, the bottom of the rotating shaft penetrates through the fourth bevel gear, the guide post is fixedly connected with the bottom of the guide post, and the guide post is fixedly connected with the bottom of the guide post.

Preferably, the second driver comprises a third gear fixedly sleeved outside the rotating shaft, a second motor is fixedly connected to the base, a fourth gear is fixedly connected to the output end of the second motor and meshed with the third gear, a plurality of rollers are fixedly connected to the bottom of the supporting seat, and the rollers are in contact with the top of the base.

The invention also provides a hard alloy extrusion molding method, which comprises the hard alloy extrusion molding device, and comprises the following steps:

step one: the lifting frame is driven to move downwards through the height adjusting piece, the lifting frame drives the upper die to move downwards, after the upper die and the lower die are assembled, the upper die and the lower die carry out extrusion molding on alloy raw materials, after the alloy raw materials in the lower die are molded, the lifting frame is driven to move upwards through the height adjusting piece so as to separate the upper die from the lower die, when the initial height of the upper die is reset, the lifting frame is stopped to be driven to move upwards through the height adjusting piece, the rotating shaft is driven to rotate through the second driver so as to enable the upper die to rotate to the position above the next lower die, and a worker can carry out extrusion molding on the alloy raw materials at the next time by adding the alloy raw materials into one lower die below the upper die again;

Step two: when the lifting frame rotates, one of the pressing columns moves to the upper part of the lower die with the forming part inside, at the moment, the upper die is positioned above one of the lower dies, when the lifting frame is driven to move downwards by the height adjusting part, the pressing columns drive the stop plate to slide horizontally by the sliding adjusting part, the limitation of the positions of the supporting blocks and the corresponding first connecting shafts is released, the rotating sleeve is driven to rotate by the first driver, the first connecting shafts with the position limitation released by the rotating sleeve are driven to rotate by the damping rotating structure, so that the lower die with the forming part inside rotates, the lifting frame and the pressing columns are driven to move upwards by the height adjusting part while the lower die rotates, the stop plate is driven to return to the initial position by the sliding adjusting part relative to the supporting ring, and after the lower die is driven to rotate by one hundred eighty degrees by the first connecting shafts, the cavity opening of the lower die with the forming part inside faces downwards;

step three: when the second driver drives the rotating shaft to rotate so that the lifting frame drives the upper die to rotate to the next station, the rotating shaft drives the supporting seat and the supporting plate to synchronously rotate, the supporting plate rotates to the bottom of the lower die with the forming part in the inner part and the cavity opening facing downwards, when the lifting frame moves downwards again, the lifting frame ejects the forming part positioned in the lower die from the cavity through the magnetic ejection structure, the forming part drops onto the supporting plate, a worker removes the forming part positioned on the supporting plate, when the rotating sleeve drives the first connecting shaft defined by the release position to rotate through the damping rotating structure, the height adjusting part drives the lifting frame and the pressing column to move upwards, the rotating sleeve drives the supporting plate to synchronously move upwards through the damping lifting assembly, and the supporting plate contacts with the bottom of the lower die again;

Step four: when the lifting frame drives the upper die to rotate to the next station, the supporting seat and the supporting plate move to the bottom of the lower die with the forming part inside and the cavity opening facing downwards, the other pressing column moves to the upper part of the lower die with the demoulding completion and the cavity opening facing downwards, when the lifting frame drives the pressing column to move downwards, the pressing column can rotate the lower die with the demoulding completion and the cavity opening facing downwards for one hundred eighty degrees again, so that the cavity opening of the lower die faces upwards, the reset of the lower die is completed, and alloy raw materials can be added into the lower die again.

Compared with the prior art, the invention has the beneficial effects that:

when the lifting frame is driven to move downwards through the height adjusting piece, the pressing column slides in the horizontal direction through the sliding adjusting piece driving stop plate, the limitation of the positions of the supporting blocks and the corresponding first connecting shafts is relieved, the rotating sleeve is driven to rotate through the first driver, the first connecting shafts limited in the positions are relieved through the damping rotating structure, so that the lower die with the forming piece inside rotates, the lifting frame and the pressing column are driven to move upwards when the lower die rotates, the sliding adjusting piece driving stop plate is reset to the initial position relative to the supporting ring, after the first connecting shafts drive the lower die to rotate by one hundred eighty degrees, the cavity opening of the lower die with the forming piece inside faces downwards, when the lifting frame drives the upper die to rotate to the next station, the supporting seat and the supporting plate synchronously rotate, the supporting plate rotates to the bottom of the lower die with the forming piece inside and the cavity opening facing downwards, when the lifting frame moves downwards again through the magnetic attraction ejection structure, the forming piece in the lower die is ejected from the cavity, the forming piece falls to the upper die, the working personnel is located on the lower die with the lower die to be formed with the lower die with the cavity opening facing downwards, the forming force can be reduced, and the forming force can be reduced, the forming cavity can be reduced, and the forming force can be reduced by using the ejection force to the forming die with the lower die to be formed with the lower die having the lower die opening to be formed with the higher strength reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged partial schematic view of the present invention at A in FIG. 1;

FIG. 3 is a schematic view of the bottom of the lift frame of the present invention;

FIG. 4 is a schematic view of a support base according to the present invention;

FIG. 5 is a schematic view of the structure of the support ring of the present invention;

FIG. 6 is a schematic view of the bottom of the support ring of the present invention;

FIG. 7 is a schematic view of the lower die of the present invention in cross section;

FIG. 8 is a schematic view showing the structure of the stop plate and the first support plate of the present invention disassembled;

fig. 9 is a schematic structural view of the rotary sleeve of the present invention.

In the figure: 1. a base; 2. a rotating shaft; 3. a support sleeve; 4. a support ring; 5. a first connection plate; 6. a lower die; 7. a first connecting shaft; 8. a fixing frame; 9. a rotating sleeve; 10. a support base; 11. a supporting plate; 12. a support block; 13. a stop plate; 14. a lifting frame; 15. an upper die; 16. pressing the column; 17. a fixed block; 18. a first support plate; 19. a second connecting plate; 20. a chute; 21. a compression spring; 22. a second connecting shaft; 23. a first bevel gear; 24. a second bevel gear; 25. a first damping disk; 26. a second damping disk; 27. a first motor; 28. a first gear; 29. a gear ring; 30. a support shaft; 31. a second support plate; 32. an iron plate; 33. an ejection groove; 34. ejecting the iron plate; 35. a movable rod; 36. a magnet ring; 37. a magnet block; 38. a top plate; 39. a hydraulic telescopic rod; 40. a third connecting shaft; 41. a first support portion; 42. a third bevel gear; 43. a fourth bevel gear; 44. a fourth connecting shaft; 45. a third damping disk; 46. a fourth damping disk; 47. a second gear; 48. a toothed plate; 49. a guide post; 50. a guide sleeve; 51. a roller; 52. a third gear; 53. a second motor; 54. a fourth gear; 55. and a second supporting part.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the first embodiment, as shown in fig. 1 to 9, the invention comprises a base 1, a rotating shaft 2 is arranged above the base 1, the bottom end of the rotating shaft 2 is connected with the base 1 through a bearing, a supporting sleeve 3 is sleeved outside the rotating shaft 2, a bearing is arranged at the joint of the supporting sleeve 3 and the rotating shaft 2, a supporting ring 4 is sleeved outside the supporting sleeve 3, the supporting ring 4 and the supporting sleeve 3 are connected through a plurality of first connecting plates 5, a plurality of lower dies 6 are arranged above the base 1, a first connecting shaft 7 is fixedly connected to the lower dies 6, a fixing frame 8 is sleeved outside the first connecting shaft 7, a bearing is arranged at the joint of the first connecting shaft 7 and the fixing frame 8, the fixing frame 8 is fixedly connected with the supporting ring 4, the lower dies 6 and the base 1 are connected through a rotary supporting unit, a rotary sleeve 9 positioned below the supporting sleeve 3 is sleeved outside the rotating shaft 2, a bearing is arranged at the joint of the rotary sleeve 9 and the rotating shaft 2, the rotary sleeve 9 is connected with the first connecting shaft 7 through a damping rotary structure, two supporting blocks 12 are fixedly connected to the first connecting shaft 7, a stop plate 13 is arranged on one side of the first connecting shaft 7, the stop plate 13 is contacted with the bottom of one of the supporting blocks 12, two pressing columns 16 are fixedly connected to the bottom of the lifting frame 14, the stop plate 13 is connected with the supporting ring 4 through a sliding adjusting piece, a first driver for driving the rotary sleeve 9 to rotate is arranged on the supporting ring 4, a second driver matched with the rotary shaft 2 is arranged on the base 1, a supporting seat 10 positioned below the rotary sleeve 9 is fixedly connected to the rotary shaft 2, a supporting plate 11 is arranged above the supporting seat 10, the supporting plate 11 is connected with the rotary sleeve 9 through a damping lifting assembly, a lifting frame 14 is arranged above the supporting ring 4, the lifting frame 14 is connected with the rotary shaft 2 through a height adjusting piece, the bottom of the lifting frame 14 is fixedly connected with an upper die 15 matched with the lower die 6, and the lower die 6 is provided with a magnetic ejection structure matched with the lifting frame 14; when the lifting frame 14 is driven to move downwards through the height adjusting piece, the pressing column 16 slides in the horizontal direction through the sliding adjusting piece driving stop plate 13, the limitation of the positions of the supporting block 12 and the corresponding first connecting shaft 7 is relieved, the rotating sleeve 9 is driven to rotate through the first driver, the rotating sleeve 9 drives the first connecting shaft 7 limited by the releasing position through the damping rotating structure to rotate, the lower die 6 containing the forming piece inside is enabled to rotate, the lifting frame 14 and the pressing column 16 are driven to move upwards through the height adjusting piece while the lower die 6 rotates, the sliding adjusting piece driving stop plate 13 is reset to the initial position relative to the supporting ring 4, after the first connecting shaft 7 drives the lower die 6 to rotate by one hundred eighty degrees, the cavity opening of the lower die 6 containing the forming piece inside is enabled to face downwards, when the second driver drives the rotating shaft 2 to rotate, so that the lifting frame 14 drives the upper die 15 to rotate to the next station, at the moment, the rotating shaft 2 drives the supporting seat 10 and the supporting plate 11 to rotate synchronously, the lower die 11 rotates to the bottom of the lower die 6 containing the forming piece inside and the cavity opening downwards, when the lifting frame 14 moves downwards again, the lifting frame 14 sucks the lifting frame 14 to enable the forming piece to be located in the lower die 6 to rotate by one hundred eighty degrees, the forming hole of the forming piece can be formed by the lower die 6, the cavity opening of the forming piece can be reduced, the forming cavity opening of the forming piece can be formed by the lower die 11, the forming cavity can be reduced, the forming cavity of the forming piece can be carried out by the forming cavity and the forming cavity by the forming cavity and the forming cavity-shaped piece by the forming cavity and the forming cavity.

In the second embodiment, as shown in fig. 1, 2, 5, 6 and 8, the sliding adjusting member includes a fixed block 17 fixedly installed on the top of a stop plate 13, an inclined surface matched with a pressing post 16 is provided on the fixed block 17, a first support plate 18 is provided on one side of the stop plate 13, the first support plate 18 and the support ring 4 are connected through a second connection plate 19, a chute 20 is provided on the first support plate 18, one end of the stop plate 13 is located in the chute 20, and the stop plate 13 and the inner wall of the chute 20 are connected through a compression spring 21;

when the pressing column 16 moves downwards along with the lifting frame 14, as the pressing column 16 moves downwards continuously, the pressing column 16 contacts with the inclined surface on the fixed block 17, the pressing column 16 slides on the inclined surface of the fixed block 17, the pressing column 16 pushes the fixed block 17 and the stop plate 13 to move, the length of the stop plate 13 in the sliding groove 20 is increased, the compression spring 21 is in a compressed state, the contact area between the stop plate 13 and the bottom of the supporting block 12 is reduced, when the lifting frame 14 descends to the lowest position, the stop plate 13 is not contacted with the bottom of the supporting block 12 any more, the limitation on the positions of the supporting block 12 and the first connecting shaft 7 is released, the rotating sleeve 9 drives the first connecting shaft 7 and the supporting block 12 to rotate through the damping rotating structure, as the lifting frame 14 moves upwards, the pressing column 16 does not press the inclined surface of the fixed block 17 any more, the compression spring 21 drives the stop plate 13 and the fixed block 17 to move reversely, finally, the stop plate 13 is reset to the initial position, when the first connecting shaft 7 and the lower die 6 rotate by one hundred and ten degrees, the other supporting block 12 is automatically stopped from contacting the top of the first connecting shaft 13 and the first die 7 and the ten hundred degrees of the second die are automatically stopped after the first connecting shaft and the first die is rotated.

In the third embodiment, based on the first embodiment, as shown in fig. 1, fig. 2, fig. 5, fig. 6, fig. 7 and fig. 9, the damping rotation structure includes a plurality of first bevel gears 23 disposed between the support sleeve 3 and the support ring 4, a second connection shaft 22 is fixedly connected to the first bevel gears 23, one end of the second connection shaft 22 far away from the first bevel gears 23 penetrates through the support ring 4, a bearing is disposed at the connection position of the second connection shaft 22 and the support ring 4, a second bevel gear 24 is sleeved outside the rotation shaft 2, the bottom of the second bevel gear 24 is fixedly connected with the top of the rotation sleeve 9, the first bevel gears 23 are meshed with the second bevel gears 24, a first damping disc 25 is fixedly connected to the second connection shaft 22, a second damping disc 26 is fixedly connected to the first connection shaft 7, the second damping disc 26 is contacted with the first damping disc 25, a first driver includes a first motor 27 fixedly mounted at the bottom of the support ring 4, a first gear 28 is fixedly connected to the output end of the first motor 27, a second support plate 29 is fixedly mounted at the outer part of the rotation sleeve 9, a second support plate 31 is fixedly mounted at the bottom of the rotation sleeve 9 and is fixedly connected with the second support plate 31, a second support plate 30 is fixedly mounted at the bottom of the rotation sleeve 30, and the first support plate 30 is fixedly mounted at the bottom of the rotation sleeve 30, and the rotation support unit is fixedly mounted at the bottom of the rotation sleeve 31, and the rotation support plate 30 is fixedly mounted at the bottom of the support shaft 30, and has a support shaft 31 is fixedly mounted on the support shaft 31;

The first gear 28 is driven to rotate by the first motor 27, the rotating sleeve 9 is driven to rotate by the first gear 28 through the gear ring 29, the second bevel gear 24 is driven to rotate by the rotating sleeve 9, the second connecting shaft 22 and the first damping disk 25 are driven to rotate by the second bevel gear 24 through the first bevel gear 23, the second damping disk 26 and the first connecting shaft 7 are driven to synchronously rotate by the first damping disk 25 through friction force, when one of the supporting blocks 12 is contacted with the top of the stop plate 13, the first connecting shaft 7 and the second damping disk 26 stop rotating, and as the second connecting shaft 22 and the first damping disk 25 continuously rotate, the second damping disk 26 and the first connecting shaft 7 cannot be driven to rotate by the friction force, so that the lower die 6 is kept in a state parallel to the horizontal plane, and the lower die 6 is supported by the design of the second supporting plate 31 and the supporting shaft 30, so that the lower die 6 rotates smoothly relative to the base 1.

In the fourth embodiment, based on the first embodiment, as shown in fig. 1, fig. 3, fig. 4, fig. 5, fig. 7 and fig. 9, the magnetic attraction ejection structure comprises an iron disc 32 fixedly installed at the bottom of the lifting frame 14, a plurality of ejection grooves 33 are formed on the inner wall of the cavity of the lower mold 6, an ejection iron plate 34 is arranged in the ejection groove 33, a movable rod 35 is fixedly connected to the ejection iron plate 34, one end of the movable rod 35, far away from the ejection iron plate 34, penetrates through the lower mold 6, a magnet ring 36 is sleeved outside the movable rod 35, the magnet ring 36 and the ejection iron plate 34 are magnetically attracted, one side of the magnet ring 36, far away from the ejection iron plate 34, is fixedly connected with an inner wall of the ejection groove 33, one end of the movable rod 35, far away from the ejection iron plate 34, is fixedly connected with a magnet block 37 matched with the iron disc 32, the height adjusting piece comprises a top plate 38 fixedly installed at the top end of the rotating shaft 2, the bottom of the top plate 38 is connected with the lifting frame 14 through a plurality of hydraulic telescopic rods 39, the damping lifting assembly comprises a third connecting shaft 40 arranged above a supporting seat 10, a first supporting part 41 is sleeved outside the third connecting shaft 40, a bearing is arranged at the joint of the third connecting shaft 40 and the first supporting part 41, the first supporting part 41 is fixedly connected with the supporting seat 10, one end of the third connecting shaft 40 is fixedly connected with a third bevel gear 42, the other end of the third connecting shaft 40 is fixedly connected with a third damping disk 45, the bottom of a rotating sleeve 9 is fixedly connected with a fourth bevel gear 43, a rotating shaft 2 penetrates through the fourth bevel gear 43, the third bevel gear 42 is meshed with the fourth bevel gear 43, a fourth connecting shaft 44 is arranged at one side of the third damping disk 45, a second supporting part 55 is sleeved outside the fourth connecting shaft 44, a bearing is arranged at the joint of the second supporting part 55 and the fourth connecting shaft 44, the second supporting part 55 is fixedly connected with the supporting seat 10, the fourth connecting shaft 44 is fixedly connected with a fourth damping disk 46, the fourth damping disk 46 is contacted with a third damping disk 45, a second gear 47 is fixedly sleeved outside the fourth connecting shaft 44, the bottom of the supporting plate 11 is fixedly connected with a toothed plate 48, the toothed plate 48 is meshed with the second gear 47, the bottom of the supporting plate 11 is fixedly connected with two guide posts 49, a guide sleeve 50 is sleeved outside the guide posts 49, the bottom end of the guide sleeve 50 is fixedly connected with the supporting seat 10, the second driver comprises a third gear 52 fixedly sleeved outside the rotating shaft 2, a second motor 53 is fixedly connected on the base 1, the output end of the second motor 53 is fixedly connected with a fourth gear 54, the fourth gear 54 is meshed with the third gear 52, the bottom of the supporting seat 10 is fixedly connected with a plurality of rollers 51, and the rollers 51 are contacted with the top of the base 1;

When the iron plate 32 is positioned above the lower die 6 containing the forming part inside and the cavity opening facing downwards, and the magnet block 37 is positioned above the lower die 6, the iron plate 32 is contacted with the magnet block 37 along with the downward movement of the lifting frame 14, the iron plate 32 and the magnet block 37 are magnetically attracted together, the iron plate 32 pushes the magnet block 37 and the movable rod 35 to move downwards so as to separate the ejection iron plate 34 from the magnet ring 36, the ejection iron plate 34 moves out of the ejection groove 33, the ejection iron plate 34 ejects the forming part positioned in the lower die 6, the forming part falls on the supporting plate 11, the forming part pushes the supporting plate 11 to move downwards synchronously along with the continuous downward movement of the ejection iron plate 34, the supporting plate 11 drives the toothed plate 48 and the guide post 49 to move downwards, the toothed plate 48 drives the second gear 47 and the fourth connecting shaft 44 to rotate, the fourth connecting shaft 44 drives the fourth damping disk 46 to rotate relative to the third damping disk 45, when the molded part is separated from the cavity of the lower die 6, a worker can take off the molded part on the supporting plate 11, when the lifting frame 14 and the iron disk 32 move upwards, the iron disk 32 drives the magnet block 37 and the movable rod 35 to move upwards synchronously through magnetic force so that the ejection iron plate 34 slides into the ejection groove 33 again, the ejection iron plate 34 is finally contacted with the magnet ring 36, the ejection iron plate 34 and the magnet ring 36 are magnetically attracted together, the ejection iron plate 34 is fixed relative to the lower die 6, the iron disk 32 and the magnet block 37 are separated along with the continuous upwards movement of the lifting frame 14, the first driver drives the rotating sleeve 9 to rotate in the process of upwards movement of the lifting frame 14, the rotating sleeve 9 drives the third bevel gear 42 and the third connecting shaft 40 to rotate through the fourth bevel gear 43, the third damping disk 45 drives the fourth damping disk 46 and the fourth connecting shaft 44 to rotate through friction force, the fourth connecting shaft 44 drives the toothed plate 48 to move upwards through the second gear 47, when the supporting plate 11 is contacted with the bottom of the lower die 6 again, the fourth connecting shaft 44 and the fourth damping disk 46 stop rotating, the third damping disk 45 cannot drive the fourth damping disk 46 to rotate through friction force along with continuous rotation of the third connecting shaft 40, movement is stopped when the supporting plate 11 moves to a preset height, stable movement of the supporting plate 11 in the vertical direction relative to the supporting seat 10 is ensured through the design of the guide post 49 and the guide sleeve 50, the fourth gear 54 is driven to rotate through the second motor 53, the rotating shaft 2 can be driven to rotate through the fourth gear 54, and stability when the supporting seat 10 rotates along with the rotating shaft 2 is improved through the design of the roller 51.

The hard alloy extrusion molding method of the embodiment comprises the hard alloy extrusion molding device, and comprises the following steps:

step one: the lifting frame 14 is driven to move downwards through the height adjusting piece, the lifting frame 14 drives the upper die 15 to move downwards, after the upper die 15 and the lower die 6 are clamped, the upper die 15 and the lower die 6 are used for extrusion molding of alloy raw materials, after the alloy raw materials in the lower die 6 are molded, the lifting frame 14 is driven to move upwards through the height adjusting piece so as to separate the upper die 15 from the lower die 6, when the upper die 15 is reset to an initial height, the lifting frame 14 is stopped to be driven to move upwards through the height adjusting piece, the rotating shaft 2 is driven to rotate through the second driver so as to enable the upper die 15 to rotate to the position above the next lower die 6, and a worker can perform extrusion molding of the alloy raw materials at the next time by adding the alloy raw materials into one lower die 6 below the upper die 15 again;

step two: when the lifting frame 14 rotates and one of the pressing columns 16 moves to the position above the lower die 6 containing the forming piece inside, at this time, the upper die 15 is positioned above one of the lower dies 6, when the lifting frame 14 is driven to move downwards by the height adjusting piece, the pressing columns 16 slide horizontally by driving the stop plate 13 through the sliding adjusting piece, the limitation of the positions of the supporting blocks 12 and the corresponding first connecting shafts 7 is released, the rotating sleeve 9 is driven to rotate by the first driver, the rotating sleeve 9 drives the first connecting shafts 7 limited by the releasing positions to rotate by the damping rotating structure, so that the lower die 6 containing the forming piece inside rotates, the lifting frame 14 and the pressing columns 16 are driven to move upwards while the lower die 6 rotates, the stop plate 13 is driven to return to the initial position by the sliding adjusting piece relative to the supporting ring 4, and after the lower die 6 is driven to rotate by one hundred eighty degrees by the first connecting shafts 7, the cavity opening of the lower die 6 containing the forming piece inside faces downwards;

Step three: when the second driver drives the rotating shaft 2 to rotate so that the lifting frame 14 drives the upper die 15 to rotate to the next station, at the moment, the rotating shaft 2 drives the supporting seat 10 and the supporting plate 11 to synchronously rotate, the supporting plate 11 rotates to the bottom of the lower die 6 containing the formed part in the interior and with the cavity opening facing downwards, when the lifting frame 14 moves downwards again, the lifting frame 14 ejects the formed part positioned in the lower die 6 from the cavity through the magnetic ejection structure, the formed part falls onto the supporting plate 11, a worker removes the formed part positioned on the supporting plate 11, when the rotating sleeve 9 drives the first connecting shaft 7 defined by the release position to rotate through the damping rotating structure, the height adjusting part drives the lifting frame 14 and the pressing column 16 to upwards move, the rotating sleeve 9 drives the supporting plate 11 to synchronously upwards through the damping lifting assembly, and the supporting plate 11 contacts with the bottom of the lower die 6 again;

step four: when the lifting frame 14 drives the upper die 15 to rotate to the next station, the supporting seat 10 and the supporting plate 11 move to the bottom of the lower die 6 with the forming part inside and the cavity opening facing downwards, the other pressing column 16 moves to the upper side of the lower die 6 with the demoulding completed and the cavity opening facing downwards, when the lifting frame 14 drives the pressing column 16 to move downwards, the pressing column 16 can rotate the lower die 6 with the demoulding completed and the cavity opening facing downwards by one hundred eighty degrees again, so that the cavity opening of the lower die 6 faces upwards, the reset of the lower die 6 is completed, and alloy raw materials can be added into the lower die 6 again.

Working principle: the lower die 6 above the supporting plate 11 and the lower die 6 with the cavity opening facing downwards are respectively arranged above the supporting plates 6, the cavity openings of the other lower dies 6 face upwards, the rotary sleeve 9 is driven by the first driver to rotate, the first connecting shaft 7 is driven by the rotary sleeve 9 through the damping rotary structure, so that one supporting block 12 on the first connecting shaft 7 contacts with the top of the stop plate 13, the lower dies 6 with the cavity openings facing downwards and the lower dies 6 with the cavity openings facing upwards are ensured to be in a state parallel to the horizontal plane, the rotary sleeve 9 drives the supporting plate 11 to move upwards through the damping lifting assembly, the supporting plate 11 is contacted with the bottoms of the lower dies 6 with the corresponding cavity opening facing downwards, the supporting plate 11 stops moving upwards, after the initial positions of the lower dies 6 and the supporting plate 11 are adjusted, the worker adds alloy raw materials into the lower die 6 below the upper die 15, after the alloy raw materials are added into the die, the lifter 14 is driven by the lifter 14, the lifter 15 moves downwards, after the upper die 15 and the lower die 6 are matched, the upper die 15 and the lower die 6 are contacted with the lower die 6, the upper die 15 is separated by the lifter 15, the lifter 15 is driven by the lifter 15 to press the lifter 15, the lifter 15 to extrude the raw materials from the lower die 15, and the workpiece through the lifter 15 after the lifter 15 is pressed down by the lifter 2, the lifter is driven by the lifter 2, and the lifter is pressed by the lifter 2, when the lifting frame 14 rotates and one of the pressing columns 16 moves to the upper side of the lower die 6 containing the forming part inside, and at this time, the upper die 15 is positioned above one of the lower dies 6, when the lifting frame 14 is driven to move downwards by the height adjusting part, the pressing columns 16 drive the stop plate 13 to slide horizontally by the sliding adjusting part, when the stop plate 13 is no longer contacted with the bottom of the supporting block 12, the limitation of the positions of the supporting block 12 and the corresponding first connecting shaft 7 is released, the lifting frame 14 descends to the lowest position, and at this time, the upper die 15 and the lower die 6 are in a die-closing state, the rotating sleeve 9 is driven to rotate by the first driver, the rotating sleeve 9 drives the first connecting shaft 7 limited by the releasing position to rotate by the damping rotating structure, so that the lower die 6 containing the forming part inside rotates, the height adjusting member drives the lifting frame 14 and the pressing column 16 to move upwards, the limit of the position of the stop plate 13 is released, the sliding adjusting member drives the stop plate 13 to reset to the initial position relative to the support ring 4, after the first connecting shaft 7 drives the lower die 6 to rotate for one hundred eighty degrees, the bottom of the other support block 12 contacts with the stop plate 13 to enable the lower die 6 containing the forming member to rotate for one hundred eighty degrees, the cavity opening of the lower die 6 containing the forming member is downward, when the second driver drives the rotating shaft 2 to rotate, the lifting frame 14 drives the upper die 15 to rotate to the next station, at the moment, the rotating shaft 2 drives the support seat 10 and the supporting plate 11 to synchronously rotate, the supporting plate 11 rotates to the bottom of the lower die 6 containing the forming member and the cavity opening of the cavity is downward, and in the process of clamping the upper die 15 and the lower die 6 when the lifting frame 14 moves downwards again, the lifting frame 14 ejects the formed part positioned in the lower die 6 from the cavity through the magnetic ejection structure, the formed part falls onto the supporting plate 11, the magnetic ejection structure drives the formed part and the supporting plate 11 to synchronously move downwards, the formed part finally moves out of the cavity of the lower die 6, the upper die 15 and the lower die 6 are in a die-closing state, a worker takes down the formed part positioned on the supporting plate 11, when the rotating sleeve 9 drives the first connecting shaft 7 defined by the release position through the damping rotating structure to rotate, the height adjusting part drives the lifting frame 14 and the pressing column 16 to move upwards, the rotating sleeve 9 drives the supporting plate 11 to synchronously move upwards through the damping lifting assembly, when the lifting frame 14 is reset to the initial height, the supporting plate 11 is contacted with the bottom of the lower die 6 again, when the lifting frame 14 drives the upper die 15 to rotate to the next station, when the supporting seat 10 and the supporting plate 11 move to the bottom of the lower die 6 with the die cavity opening facing downwards and the other pressing column 16 moves to the upper part of the lower die 6 with the die cavity opening facing downwards and the lifting frame 14 drives the pressing column 16 to move downwards, the pressing column 16 can rotate the lower die 6 with the die cavity opening facing downwards for one hundred eighty degrees again, so that the die cavity opening of the lower die 6 faces upwards and the reset of the lower die 6 is finished, alloy raw materials can be added into the lower die 6 again, a plurality of lower dies 6 can be sequentially extruded and molded, the lower die 6 with the die cavity opening of the lower die 6 facing downwards and the die cavity opening of the die is turned over for one hundred eighty degrees, the gravity of the die provides assistance to die cavity opening of the lower die 6, the force of the magnetic ejection structure acting on the die is reduced, the die cavity opening of the die is convenient to be demolded, the possibility of leaving an indentation on the die is reduced, the reject ratio is reduced;

When the pressing column 16 moves downwards along with the lifting frame 14, the pressing column 16 is contacted with the inclined surface on the fixed block 17 along with the continuous downwards movement of the pressing column 16, the pressing column 16 slides on the inclined surface of the fixed block 17, the pressing column 16 pushes the fixed block 17 and the stop plate 13 to move, the length of the stop plate 13 in the sliding groove 20 is increased, the compression spring 21 is in a compressed state, the contact area between the stop plate 13 and the bottom of the supporting block 12 is reduced, when the lifting frame 14 descends to the lowest position, the stop plate 13 is not contacted with the bottom of the supporting block 12 any more, the limitation on the positions of the supporting block 12 and the first connecting shaft 7 is released, the rotating sleeve 9 drives the first connecting shaft 7 and the supporting block 12 to rotate through the damping rotating structure, the pressing column 16 does not press the inclined surface of the fixed block 17 any more, the compression spring 21 drives the stop plate 13 and the fixed block 17 to move reversely, finally, the stop plate 13 is reset to the initial position, and when the first connecting shaft 7 and the lower die 6 rotate by one hundred and ten degrees, the other supporting block 12 is automatically stopped from contacting the top of the first connecting shaft 13 and the first die 7 after the first hundred degrees of rotation;

the first motor 27 drives the first gear 28 to rotate, the first gear 28 drives the rotary sleeve 9 to rotate through the gear ring 29, the rotary sleeve 9 drives the second bevel gear 24 to rotate, the second bevel gear 24 drives the second connecting shaft 22 and the first damping disc 25 to rotate through the first bevel gear 23, the first damping disc 25 drives the second damping disc 26 and the first connecting shaft 7 to synchronously rotate through friction force, when one supporting block 12 is contacted with the top of the stop plate 13, the first connecting shaft 7 and the second damping disc 26 stop rotating, and with the continuous rotation of the second connecting shaft 22 and the first damping disc 25, the first damping disc 25 cannot drive the second damping disc 26 and the first connecting shaft 7 to rotate through friction force, so that the lower die 6 is kept in a state parallel to the horizontal plane, and the lower die 6 is supported by the design of the second supporting plate 31 and the supporting shaft 30, so that the lower die 6 rotates smoothly relative to the base 1;

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Cemented carbide extrusion device, including base (1), its characterized in that: the upper side of base (1) is equipped with pivot (2), the bottom of pivot (2) and base (1) pass through bearing connection, the outside cover of pivot (2) is equipped with supporting sleeve (3), the junction of supporting sleeve (3) and pivot (2) is equipped with the bearing, the outside cover of supporting sleeve (3) is equipped with supporting ring (4), supporting ring (4) and supporting sleeve (3) are connected through a plurality of first connecting plates (5), the top of base (1) is equipped with a plurality of bed die (6), fixedly connected with first connecting axle (7) on bed die (6), the outside cover of first connecting axle (7) is equipped with mount (8), the junction of first connecting axle (7) and mount (8) is equipped with the bearing, mount (8) and supporting ring (4) fixed connection, bed die (6) and base (1) pass through rotary support unit connection, the outside cover of pivot (2) is equipped with rotary sleeve (9) that are located supporting sleeve (3) below, the junction of rotary sleeve (9) and pivot (2) is equipped with the bearing, rotary sleeve (9) and first connecting axle (7) are equipped with damping piece (13) through first connecting axle (7) fixed connection, one side is equipped with damping piece (13), the bottom of retaining plate (13) and one of them supporting shoe (12) contacts, the bottom fixedly connected with of crane (14) presses post (16), retaining plate (13) and supporting ring (4) are connected through the slip regulating part, be equipped with on supporting ring (4) and be used for driving rotatory cover (9) rotatory first driver, be equipped with on base (1) with pivot (2) matched with second driver, fixedly connected with is located supporting seat (10) of rotating cover (9) below on pivot (2), the top of supporting seat (10) is equipped with layer board (11), layer board (11) and rotating cover (9) are connected through damping lifting assembly, the top of supporting ring (4) is equipped with crane (14), crane (14) and pivot (2) are connected through the altitude mixture control spare, the bottom fixedly connected with of crane (14) and bed die (6) matched with cope mold (15), be equipped with on bed die (6) with crane (14) matched with magnetism inhale ejecting structure.

2. A cemented carbide extrusion apparatus according to claim 1, wherein: the sliding adjusting piece comprises a fixed block (17) fixedly mounted at the top of a stop plate (13), an inclined surface matched with the pressing column (16) is arranged on the fixed block (17), a first supporting plate (18) is arranged on one side of the stop plate (13), the first supporting plate (18) is connected with a supporting ring (4) through a second connecting plate (19), a sliding groove (20) is formed in the first supporting plate (18), one end of the stop plate (13) is located in the sliding groove (20), and the stop plate (13) is connected with the inner wall of the sliding groove (20) through a compression spring (21).

3. A cemented carbide extrusion apparatus according to claim 1, wherein: the damping rotating structure comprises a plurality of first bevel gears (23) arranged between a supporting sleeve (3) and a supporting ring (4), wherein a second connecting shaft (22) is fixedly connected to the first bevel gears (23), one end, far away from the first bevel gears (23), of the second connecting shaft (22) penetrates through the supporting ring (4), a bearing is arranged at the joint of the second connecting shaft (22) and the supporting ring (4), a second bevel gear (24) is sleeved outside the rotating shaft (2), the bottoms of the second bevel gears (24) are fixedly connected with the top of the rotating sleeve (9), the first bevel gears (23) are meshed with the second bevel gears (24), a first damping disc (25) is fixedly connected to the second connecting shaft (22), and a second damping disc (26) is fixedly connected to the first connecting shaft (7) and is in contact with the first damping disc (25).

4. A cemented carbide extrusion apparatus according to claim 1, wherein: the first driver comprises a first motor (27) fixedly arranged at the bottom of the supporting ring (4), a first gear (28) is fixedly connected to the output end of the first motor (27), a gear ring (29) is fixedly sleeved outside the rotary sleeve (9), and the gear ring (29) is meshed with the first gear (28).

5. A cemented carbide extrusion apparatus according to claim 1, wherein: the rotary supporting unit comprises a supporting shaft (30) fixedly mounted on the lower die (6), a second supporting plate (31) is sleeved outside the supporting shaft (30), a bearing is arranged at the joint of the supporting shaft (30) and the second supporting plate (31), and the bottom of the second supporting plate (31) is fixedly connected with the base (1).

6. A cemented carbide extrusion apparatus according to claim 1, wherein: the magnetic attraction ejection structure comprises an iron plate (32) fixedly mounted at the bottom of a lifting frame (14), a plurality of ejection grooves (33) are formed in the inner wall of a cavity of a lower die (6), an ejection iron plate (34) is arranged in each ejection groove (33), a movable rod (35) is fixedly connected to each ejection iron plate (34), one end of each movable rod (35), far away from each ejection iron plate (34), penetrates through the lower die (6), a magnet ring (36) is sleeved outside each movable rod (35), the magnet ring (36) and the ejection iron plate (34) are magnetically attracted, one side, far away from each ejection iron plate (34), of each magnet ring (36) is fixedly connected with the inner wall of each ejection groove (33), and one end, far away from each ejection iron plate (34), of each movable rod (35) is fixedly connected with a magnet block (37) matched with the iron plate (32).

7. A cemented carbide extrusion apparatus according to claim 1, wherein: the height adjusting piece comprises a top plate (38) fixedly arranged at the top end of the rotating shaft (2), and the bottom of the top plate (38) is connected with the lifting frame (14) through a plurality of hydraulic telescopic rods (39).

8. A cemented carbide extrusion apparatus according to claim 1, wherein: the damping lifting assembly comprises a third connecting shaft (40) arranged above a supporting seat (10), a first supporting part (41) is sleeved outside the third connecting shaft (40), a bearing is arranged at the joint of the third connecting shaft (40) and the first supporting part (41), the first supporting part (41) is fixedly connected with the supporting seat (10), a third bevel gear (42) is fixedly connected with one end of the third connecting shaft (40), a third damping disc (45) is fixedly connected with the other end of the third connecting shaft (40), a fourth bevel gear (43) is fixedly connected with the bottom of a rotary sleeve (9), the rotary shaft (2) penetrates through the fourth bevel gear (43), the third bevel gear (42) is meshed with the fourth bevel gear (43), a fourth connecting shaft (44) is arranged on one side of the third damping disc (45), a second supporting part (55) is sleeved outside the fourth connecting shaft (44), a bearing is arranged at the joint of the second supporting part (55) and the fourth connecting shaft (44), a fourth damping disc (46) is fixedly connected with the bottom of the fourth supporting seat (10), the fourth damping disc (46) is fixedly connected with the fourth damping disc (46), and the toothed plate (48) is meshed with the second gear (47), the bottom of the supporting plate (11) is fixedly connected with two guide posts (49), the outer part of each guide post (49) is sleeved with a guide sleeve (50), and the bottom end of each guide sleeve (50) is fixedly connected with the supporting seat (10).

9. A cemented carbide extrusion apparatus according to claim 1, wherein: the second driver comprises a third gear (52) fixedly sleeved outside the rotating shaft (2), a second motor (53) is fixedly connected to the base (1), a fourth gear (54) is fixedly connected to the output end of the second motor (53), the fourth gear (54) is meshed with the third gear (52), a plurality of rollers (51) are fixedly connected to the bottom of the supporting seat (10), and the rollers (51) are contacted with the top of the base (1).

10. A cemented carbide extrusion method comprising the cemented carbide extrusion apparatus of claim 1, characterized by: the method comprises the following steps:

step one: the lifting frame (14) is driven to move downwards through the height adjusting piece, the lifting frame (14) drives the upper die (15) to move downwards, after the upper die (15) and the lower die (6) are clamped, the upper die (15) and the lower die (6) are subjected to extrusion molding, after the alloy raw materials in the lower die (6) are molded, the lifting frame (14) is driven to move upwards through the height adjusting piece so as to separate the upper die (15) from the lower die (6), when the upper die (15) is reset to an initial height, the lifting frame (14) is stopped to move upwards through the height adjusting piece, the rotating shaft (2) is driven to rotate through the second driver so that the upper die (15) rotates to the position above the next lower die (6), and a worker can perform extrusion molding of the next alloy raw materials by adding the alloy raw materials into one lower die (6) positioned below the upper die (15) again;

Step two: when the lifting frame (14) rotates and one of the pressing columns (16) moves to the upper side of the lower die (6) containing the forming part inside, at the moment, the upper die (15) is positioned above one of the lower dies (6), when the lifting frame (14) is driven to move downwards through the height adjusting part, the pressing columns (16) slide horizontally through the sliding adjusting part driving stop plate (13), the limitation of the positions of the supporting blocks (12) and the corresponding first connecting shafts (7) is relieved, the rotating sleeve (9) is driven to rotate through the first driver, the rotating sleeve (9) drives the first connecting shafts (7) limited by the releasing positions to rotate through the damping rotating structure, so that the lower die (6) containing the forming part inside rotates, and when the lower die (6) rotates, the height adjusting part drives the lifting frame (14) and the pressing columns (16) to move upwards, the sliding adjusting part driving stop plate (13) is reset to the initial position relative to the supporting ring (4), and after the first connecting shafts (7) drive the lower die (6) to rotate for hundred eighty degrees, the opening of the lower die (6) containing the forming part inside faces downwards;

step three: when the second driver drives the rotating shaft (2) to rotate so that the lifting frame (14) drives the upper die (15) to rotate to the next station, at the moment, the rotating shaft (2) drives the supporting seat (10) and the supporting plate (11) to synchronously rotate, the supporting plate (11) rotates to the bottom of the lower die (6) which internally contains a formed part and is provided with a cavity with a downward opening, when the lifting frame (14) moves downwards again, the lifting frame (14) ejects the formed part positioned in the lower die (6) from the cavity through the magnetic ejection structure, the formed part falls onto the supporting plate (11), a worker removes the formed part positioned on the supporting plate (11), and when the rotating sleeve (9) drives the lifting frame (14) and the pressing column (16) to move upwards through the damping rotation structure, the rotating sleeve (9) drives the supporting plate (11) to synchronously move upwards through the damping lifting assembly, and the supporting plate (11) contacts with the bottom of the lower die (6) again;

Step four: when the lifting frame (14) drives the upper die (15) to rotate to the next station, the supporting seat (10) and the supporting plate (11) move to the bottom of the lower die (6) with the forming part inside and the cavity opening facing downwards, the other pressing column (16) moves to the upper part of the lower die (6) with the demoulding completion and the cavity opening facing downwards, when the lifting frame (14) drives the pressing column (16) to move downwards, the pressing column (16) can rotate the lower die (6) with the demoulding completion and the cavity opening facing downwards for one hundred eighty degrees again, so that the cavity opening of the lower die (6) faces upwards, the reset of the lower die (6) is completed, and alloy raw materials can be added into the lower die (6) again.