A cemented carbide extrusion molding device and a method thereof

Abstract

The present application relates to the technical fields of hard alloy extrusion forming, and discloses a hard alloy extrusion forming device and method, which solves the problem that the ejection structure is easy to leave a pressure mark on the formed part when the ejection force is large, and secondary processing is needed in the later stage, and comprises a base, a rotating shaft is arranged above the base, the bottom end of the rotating shaft is connected with the base through a bearing, a support sleeve is arranged outside the rotating shaft, a bearing is arranged at the connection between the support sleeve and the rotating shaft, a support ring is arranged outside the support sleeve, the support ring and the support sleeve are connected through a plurality of first connecting plates, a plurality of lower dies are arranged above the base, a first connecting shaft is fixedly connected to the lower die, a fixing frame is arranged outside the first connecting shaft; the gravity of the formed part provides power for demolding, reduces the force of the magnetic ejection structure acting on the formed part, facilitates the demolding of the formed part, reduces the possibility of leaving a pressure mark on the formed part, and reduces the defective rate.

Description

Technical Field

[0001] This invention belongs to the field of cemented carbide extrusion molding technology, specifically a cemented carbide extrusion molding apparatus and method. Background Technology

[0002] In the production and processing of cemented carbide workpieces, the alloy raw material is usually hot-extruded and formed. Depending on the shape and structure of the mold, different shapes and structures of workpieces can be obtained. After the alloy raw material is formed in the mold, the formed part is ejected by the ejection structure. During this process, the formed part will stick to the inner wall of the mold cavity. The ejection structure also needs to overcome the weight of the formed part in order to eject it from the mold. At the same time, the temperature of the formed part inside the mold is relatively high. When the ejection force is large, the ejection structure is prone to leaving indentations on the formed part, which requires secondary processing in the later stage, which has certain limitations. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a cemented carbide extrusion molding apparatus and method, which effectively solves the problem in the prior art that when the ejection force of the ejection structure is large, the ejection structure is prone to leave indentations on the molded part, and secondary processing is required in the later stage.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cemented carbide extrusion molding apparatus, comprising a base, a rotating shaft disposed above the base, the bottom end of the rotating shaft being connected to the base via a bearing, a support sleeve being fitted around the rotating shaft, a bearing being disposed at the connection between the support sleeve and the rotating shaft, a support ring being fitted around the support sleeve, the support ring and the support sleeve being connected via a plurality of first connecting plates, a plurality of lower dies disposed above the base, a first connecting shaft being fixedly connected to the lower dies, a fixing frame being fitted around the first connecting shaft, a bearing being disposed at the connection between the first connecting shaft and the fixing frame, the fixing frame and the support ring being fixedly connected, the lower dies and the base being connected via a rotary support unit, a rotating sleeve located below the support sleeve being fitted around the rotating shaft, a bearing being disposed at the connection between the rotating sleeve and the rotating shaft, the rotating sleeve and the first connecting plate being fixedly connected via a fixed bracket. The connecting shaft is connected by a damping rotation structure. Two support blocks are fixedly connected to the first connecting shaft. A stop plate is provided on one side of the first connecting shaft. The stop plate contacts the bottom of one of the support blocks. Two pressing columns are fixedly connected to the bottom of the lifting frame. The stop plate and the support ring are connected by a sliding adjustment component. The support ring is provided with a first driver for driving the rotating sleeve to rotate. The base is provided with a second driver that cooperates with the rotating shaft. A support seat located below the rotating sleeve is fixedly connected to the rotating shaft. A support plate is provided above the support seat. The support plate and the rotating sleeve are connected by a damping lifting assembly. A lifting frame is provided above the support ring. The lifting frame and the rotating shaft are connected by a height adjustment component. An upper mold that cooperates with the lower mold is fixedly connected to the bottom of the lifting frame. A magnetic ejection structure that cooperates with the lifting frame is provided on the lower mold.

[0005] Preferably, the sliding adjustment component includes a fixing block fixedly installed on the top of the stop plate. The fixing block has an inclined surface that cooperates with the pressing column. A first support plate is provided on one side of the stop plate. The first support plate and the support ring are connected by a second connecting plate. A sliding groove is provided on the first support plate. One end of the stop plate is located in the sliding groove, and the inner wall of the stop plate and the sliding groove are connected by a compression spring.

[0006] Preferably, the damping rotation structure includes a plurality of first bevel gears disposed between the support sleeve and the support ring. A second connecting shaft is fixedly connected to the first bevel gear, and the end of the second connecting shaft away from the first bevel gear passes through the support ring. A bearing is provided at the connection between the second connecting shaft and the support ring. A second bevel gear is sleeved on the outside of the rotating shaft. The bottom of the second bevel gear is fixedly connected to the top of the rotating sleeve, and the first bevel gear and the second bevel gear mesh with each other. A first damping disc is fixedly connected to the second connecting shaft, and a second damping disc is fixedly connected to the first connecting shaft, and the second damping disc is in contact with the first damping disc.

[0007] Preferably, the first driver includes a first motor fixedly mounted on the bottom of the support ring, the output end of the first motor is fixedly connected to a first gear, and a gear ring is fixedly sleeved on the outside of the rotating sleeve, and the gear ring meshes with the first gear.

[0008] Preferably, the rotating support unit includes a support shaft fixedly installed on the lower mold, a second support plate sleeved on the outside of the support shaft, a bearing at the connection between the support shaft and the second support plate, and the bottom of the second support plate fixedly connected to the base.

[0009] Preferably, the magnetic ejection structure includes an iron plate fixedly installed at the bottom of the lifting frame. Several ejection slots are opened on the inner wall of the cavity of the lower mold. An ejection iron plate is provided in the ejection slot. A movable rod is fixedly connected to the ejection iron plate. The end of the movable rod away from the ejection iron plate passes through the lower mold. A magnetic ring is sleeved on the outside of the movable rod. The magnetic ring and the ejection iron plate are magnetically attracted. The side of the magnetic ring away from the ejection iron plate is fixedly connected to the inner wall of the ejection slot. A magnetic block that cooperates with the iron plate is fixedly connected to the end of the movable rod away from the ejection iron plate.

[0010] Preferably, the height adjustment component includes a top plate fixedly installed at the top of the rotating shaft, and the bottom of the top plate and the lifting frame are connected by several hydraulic telescopic rods.

[0011] Preferably, the damping lifting assembly includes a third connecting shaft disposed above the support base, a first support portion sleeved on the outside of the third connecting shaft, a bearing disposed at the connection between the third connecting shaft and the first support portion, the first support portion and the support base being fixedly connected, a third bevel gear fixedly connected to one end of the third connecting shaft, a third damping disc fixedly connected to the other end of the third connecting shaft, a fourth bevel gear fixedly connected to the bottom of the rotating sleeve, and a rotating shaft passing through the fourth bevel gear, the third bevel gear and the fourth bevel gear meshing, a fourth connecting shaft disposed on one side of the third damping disc, a second support portion sleeved on the outside of the fourth connecting shaft, a bearing disposed at the connection between the second support portion and the fourth connecting shaft, the second support portion and the support base being fixedly connected, a fourth damping disc fixedly connected to the fourth connecting shaft, and the fourth damping disc contacting the third damping disc, a second gear fixedly sleeved on the outside of the fourth connecting shaft, a toothed plate fixedly connected to the bottom of the support plate, and the toothed plate meshing with the second gear, two guide posts fixedly connected to the bottom of the support plate, guide sleeves sleeved on the outside of the guide posts, and the bottom ends of the guide sleeves being fixedly connected to the support base.

[0012] Preferably, the second driver includes a third gear fixedly sleeved on the outside of the rotating shaft, a second motor fixedly connected to the base, a fourth gear fixedly connected to the output end of the second motor, the fourth gear meshing with the third gear, and several rollers fixedly connected to the bottom of the support base, with the rollers contacting the top of the base.

[0013] The present invention also provides a method for extruding cemented carbide, comprising the cemented carbide extrusion molding apparatus as described above, and including the following steps:

[0014] Step 1: The lifting frame is driven to move down by the height adjustment component, and the lifting frame drives the upper mold to move down. After the upper and lower molds are closed, they extrude the alloy material. After the alloy material in the lower mold is formed, the lifting frame is driven to move up by the height adjustment component to separate the upper and lower molds. When the upper mold returns to its initial height, the lifting frame is stopped from moving up by the height adjustment component. The rotating shaft is driven to rotate by the second driver so that the upper mold is rotated above the next lower mold. The operator then adds alloy material to the lower mold located below the upper mold to perform the next extrusion molding of the alloy material.

[0015] Step 2: As the lifting frame rotates, one of the pressing columns moves above the lower mold containing the molded part. At this time, the upper mold is located above one of the lower molds. When the lifting frame is driven to move down by the height adjustment component, the pressing column drives the stop plate to slide horizontally through the sliding adjustment component, releasing the position limitation of the support block and the corresponding first connecting shaft. The rotating sleeve is driven to rotate by the first driver. The rotating sleeve drives the first connecting shaft that has been released from position limitation to rotate through the damping rotation structure, so that the lower mold containing the molded part rotates. At the same time as the lower mold rotates, the height adjustment component drives the lifting frame and the pressing column to move up. The sliding adjustment component drives the stop plate to reset to the initial position relative to the support ring. When the first connecting shaft drives the lower mold to rotate 180 degrees, the cavity opening of the lower mold containing the molded part faces downward.

[0016] Step 3: When the second driver drives the rotating shaft to rotate, causing the lifting frame to drive the upper mold to rotate to the next station, the rotating shaft drives the support base and the pallet to rotate synchronously. The pallet rotates to the bottom of the lower mold containing the molded part and with the cavity opening facing downwards. When the lifting frame moves down again, the lifting frame pushes the molded part located in the lower mold out of the cavity through the magnetic ejection structure. The molded part falls onto the pallet, and the operator removes the molded part from the pallet. When the rotating sleeve drives the first connecting shaft that releases the position limitation to rotate through the damping rotation structure, and the height adjustment component drives the lifting frame and the pressing column to move upwards, the rotating sleeve drives the pallet to move upwards synchronously through the damping lifting assembly, and the pallet contacts the bottom of the lower mold again.

[0017] Step 4: When the lifting frame drives the upper mold to rotate to the next station, and the support base and pallet move to the bottom of the next lower mold containing the molded part with the cavity opening facing downwards, another pressing column moves to the top of the lower mold that has completed demolding and has the cavity opening facing downwards. When the lifting frame drives the pressing column to move downwards, similarly, the pressing column can rotate the lower mold that has completed demolding and has the cavity opening facing downwards by 180 degrees again, so that the cavity opening of the lower mold faces upwards, completing the reset of the lower mold, and then alloy raw materials can be added into the lower mold again.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] When the lifting frame moves downward via the height adjustment mechanism, the pressing column drives the stop plate to slide horizontally via the sliding adjustment mechanism, releasing the position limitation of the support block and the corresponding first connecting shaft. The first driver then drives the rotating sleeve to rotate, and the rotating sleeve, through a damping rotation structure, drives the first connecting shaft, which has been released from its position limitation, to rotate, causing the lower mold containing the molded part to rotate. Simultaneously, the height adjustment mechanism drives the lifting frame and pressing column to move upward, and the sliding adjustment mechanism drives the stop plate to return to its initial position relative to the support ring. After the first connecting shaft drives the lower mold to rotate 180 degrees, the cavity opening of the lower mold containing the molded part faces downward. When the second driver drives the rotating shaft to rotate, the lifting frame drives the upper mold to rotate to the lower position. When working at one station, the rotating shaft drives the support base and the pallet to rotate synchronously. The pallet rotates to the bottom of the lower mold containing the molded part with the cavity opening facing downwards. When the lifting frame moves down again, it uses a magnetic ejection structure to eject the molded part from the cavity of the lower mold. The molded part falls onto the pallet, and the operator removes it. Several lower molds can be extruded and molded in sequence. The lower mold containing the molded part is then rotated 180 degrees so that the cavity opening of the lower mold faces downwards. The gravity of the molded part assists in demolding, reducing the force exerted on the molded part by the magnetic ejection structure, making it easier to demold the molded part. At the same time, it reduces the possibility of leaving indentations on the molded part, thus reducing the defect rate. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A magnified view of a portion of point A in the middle;

[0024] Figure 3 This is a schematic diagram of the structure at the bottom of the lifting frame of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the support base of the present invention;

[0026] Figure 5 This is a schematic diagram of the support ring structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure at the bottom of the support ring of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the lower mold section of the present invention;

[0029] Figure 8 This is a schematic diagram showing the disassembled structure of the stop plate and the first support plate of the present invention;

[0030] Figure 9 This is a schematic diagram of the rotating sleeve of the present invention.

[0031] In the diagram: 1. Base; 2. Rotating shaft; 3. Support sleeve; 4. Support ring; 5. First connecting plate; 6. Lower mold; 7. First connecting shaft; 8. Fixing frame; 9. Rotating sleeve; 10. Support seat; 11. Support plate; 12. Support block; 13. Stop plate; 14. Lifting frame; 15. Upper mold; 16. Pressing column; 17. Fixing block; 18. First support plate; 19. Second connecting plate; 20. Slide groove; 21. Compression spring; 22. Second connecting shaft; 23. First bevel gear; 24. Second bevel gear; 25. First damping disc; 26. Second damping disc; 27. First motor; 28. First gear; 2 9. Gear ring; 30. Support shaft; 31. Second support plate; 32. Iron disc; 33. Ejection slot; 34. Ejection iron plate; 35. Movable rod; 36. Magnetic ring; 37. Magnetic block; 38. Top plate; 39. Hydraulic telescopic rod; 40. Third connecting shaft; 41. First support part; 42. Third bevel gear; 43. Fourth bevel gear; 44. Fourth connecting shaft; 45. Third damping disc; 46. Fourth damping disc; 47. Second gear; 48. Gear plate; 49. Guide column; 50. Guide sleeve; 51. Roller; 52. Third gear; 53. Second motor; 54. Fourth gear; 55. Second support part. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Example 1, by Figures 1 to 9The present invention includes a base 1, a rotating shaft 2 on top of the base 1, the bottom end of the rotating shaft 2 being connected to the base 1 via a bearing, a support sleeve 3 being fitted around the rotating shaft 2, a bearing being provided at the connection between the support sleeve 3 and the rotating shaft 2, a support ring 4 being fitted around the support sleeve 3, and the support ring 4 and the support sleeve 3 being connected by a plurality of first connecting plates 5, a plurality of lower molds 6 being provided above the base 1, a first connecting shaft 7 being fixedly connected to the lower molds 6, a fixing frame 8 being fitted around the first connecting shaft 7, a bearing being provided at the connection between the first connecting shaft 7 and the fixing frame 8, the fixing frame 8 being fixedly connected to the support ring 4, the lower molds 6 and the base 1 being connected by a rotating support unit, a rotating sleeve 9 located below the support sleeve 3 being fitted around the rotating shaft 2, a bearing being provided at the connection between the rotating sleeve 9 and the rotating shaft 2, the rotating sleeve 9 and the first connecting shaft 7 being connected by a damping rotation structure, and a fixed support ring 5 being fixedly connected to the first connecting shaft 7. The fixed connection has two support blocks 12. A stop plate 13 is provided on one side of the first connecting shaft 7. The stop plate 13 contacts the bottom of one of the support blocks 12. Two pressing columns 16 are fixedly connected to the bottom of the lifting frame 14. The stop plate 13 and the support ring 4 are connected by a sliding adjustment component. The support ring 4 is provided with a first driver for driving the rotating sleeve 9 to rotate. The base 1 is provided with a second driver that cooperates with the rotating shaft 2. The rotating shaft 2 is fixedly connected with a support seat 10 located below the rotating sleeve 9. A support plate 11 is provided above the support seat 10. The support plate 11 and the rotating sleeve 9 are connected by a damping lifting assembly. The support ring 4 is provided with a lifting frame 14 above it. The lifting frame 14 and the rotating shaft 2 are connected by a height adjustment component. The bottom of the lifting frame 14 is fixedly connected with an upper mold 15 that cooperates with the lower mold 6. The lower mold 6 is provided with a magnetic ejection structure that cooperates with the lifting frame 14.When the lifting frame 14 is driven to move downward by the height adjustment component, the pressing column 16 drives the stop plate 13 to slide horizontally through the sliding adjustment component, releasing the position limitation of the support block 12 and the corresponding first connecting shaft 7. The rotating sleeve 9 is driven to rotate by the first driver, and the rotating sleeve 9 drives the first connecting shaft 7, which has been released from position limitation, to rotate through the damping rotation structure, so that the lower mold 6 containing the molded part inside rotates. At the same time as the lower mold 6 rotates, the height adjustment component drives the lifting frame 14 and the pressing column 16 to move upward, and the sliding adjustment component drives the stop plate 13 to return to its initial position relative to the support ring 4. After the lower mold 6 is driven to rotate 180 degrees by the first connecting shaft 7, the cavity opening of the lower mold 6 containing the molded part inside faces downward. When the second driver drives the rotating shaft 2 to rotate, so that the lifting frame 14 drives the upper mold 1... 5. When rotating to the next station, the rotating shaft 2 drives the support base 10 and the pallet 11 to rotate synchronously. The pallet 11 rotates to the bottom of the lower mold 6 containing the molded part with the cavity opening facing downwards. When the lifting frame 14 moves down again, the lifting frame 14 uses the magnetic ejection structure to eject the molded part located in the lower mold 6 from the cavity. The molded part falls onto the pallet 11, and the operator removes the molded part from the pallet 11. Several lower molds 6 can be extruded and molded in sequence. The lower mold 6 containing the molded part is rotated 180 degrees so that the cavity opening of the lower mold 6 faces downwards. The gravity of the molded part provides assistance for demolding, reduces the force of the magnetic ejection structure on the molded part, facilitates demolding, and reduces the possibility of leaving indentations on the molded part, thus reducing the defect rate.

[0034] Example 2, based on Example 1, is... Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 The sliding adjustment component includes a fixing block 17 fixedly installed on the top of the stop plate 13. The fixing block 17 has an inclined surface that cooperates with the pressing column 16. 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 by a second connecting plate 19. A sliding groove 20 is provided on the first support plate 18. One end of the stop plate 13 is located in the sliding groove 20, and the inner wall of the stop plate 13 and the sliding groove 20 are connected by a compression spring 21.

[0035] As the lifting frame 14 descends, the pressing column 16 contacts the inclined surface of the fixing block 17. The pressing column 16 slides on the inclined surface of the fixing block 17, pushing the fixing block 17 and the stop plate 13 to move. This increases the length of the stop plate 13 within the slide groove 20, compressing the spring 21 and reducing the contact area between the stop plate 13 and the bottom of the support block 12. When the lifting frame 14 descends to its lowest position, the stop plate 13 no longer contacts the bottom of the support block 12, releasing the contact area between the support block 12 and the stop plate 13. The position of the first connecting shaft 7 is limited. The rotating sleeve 9 drives the first connecting shaft 7 and the support block 12 to rotate through the damping rotation structure. As the lifting frame 14 moves upward, the pressing column 16 no longer presses the inclined surface of the fixing block 17. The compression spring 21 drives the stop plate 13 and the fixing block 17 to move in the opposite direction, eventually causing the stop plate 13 to return to its initial position. When the first connecting shaft 7 and the lower mold 6 rotate 180 degrees, the other support block 12 contacts the top of the stop plate 13, so that the first connecting shaft 7 and the lower mold 6 can automatically stop after rotating 180 degrees.

[0036] Example 3, based on Example 1, is... Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 9 The damping rotation structure includes several first bevel gears 23 disposed between the support sleeve 3 and the support ring 4. A second connecting shaft 22 is fixedly connected to the first bevel gears 23, and the end of the second connecting shaft 22 away from the first bevel gears 23 passes through the support ring 4. A bearing is provided at the connection between the second connecting shaft 22 and the support ring 4. A second bevel gear 24 is sleeved on the outside of the rotating shaft 2. The bottom of the second bevel gear 24 is fixedly connected to the top of the rotating sleeve 9, and the first bevel gears 23 and the second bevel gear 24 mesh with each other. A first damping disc 25 is fixedly connected to the second connecting shaft 22, and a first damping disc 25 is fixedly connected to the first connecting shaft 7. The first drive includes a first motor 27 fixedly mounted on the bottom of the support ring 4, and a first gear 28 fixedly connected to the output end of the first motor 27. A gear ring 29 is fixedly mounted on the outside of the rotating sleeve 9, and the gear ring 29 meshes with the first gear 28. The rotating support unit includes a support shaft 30 fixedly mounted on the lower mold 6. A second support plate 31 is mounted on the outside of the support shaft 30. A bearing is provided at the connection between the support shaft 30 and the second support plate 31. The bottom of the second support plate 31 is fixedly connected to the base 1.

[0037] The first motor 27 drives the first gear 28 to rotate, the first gear 28 drives the rotating sleeve 9 to rotate through the gear ring 29, the rotating 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 rotate synchronously through friction. When one of the support blocks 12 and the top of the stop plate 13 come into contact, the first connecting shaft 7 and the second damping disc 26 stop rotating. As the second connecting shaft 22 and the first damping disc 25 continue to rotate, the first damping disc 25 can no longer drive the second damping disc 26 and the first connecting shaft 7 to rotate through friction, so that the lower mold 6 remains parallel to the horizontal plane. The design of the second support plate 31 and the support shaft 30 supports the lower mold 6 so that the lower mold 6 rotates smoothly relative to the base 1.

[0038] Example 4, based on Example 1, by Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 9The magnetic ejection structure includes an iron plate 32 fixedly installed at the bottom of the lifting frame 14. Several ejection slots 33 are formed on the inner wall of the cavity of the lower mold 6. An ejection plate 34 is placed within each ejection slot 33. A movable rod 35 is fixedly connected to the ejection plate 34. The end of the movable rod 35 away from the ejection plate 34 passes through the lower mold 6. A magnetic ring 36 is sleeved on the outside of the movable rod 35. The magnetic ring 36 and the ejection plate 34 are magnetically attracted. The side of the magnetic ring 36 away from the ejection plate 34 is fixedly connected to the inner wall of the ejection slot 33. The end of the movable rod 35 away from the ejection plate 34 is fixedly connected to a component that cooperates with the iron plate 32. The magnet block 37 and the height adjustment component include a top plate 38 fixedly installed at the top of the rotating shaft 2. The bottom of the top plate 38 and the lifting frame 14 are connected by several hydraulic telescopic rods 39. The damping lifting assembly includes a third connecting shaft 40 disposed above the support base 10. A first support part 41 is sleeved on the outside of the third connecting shaft 40. A bearing is provided at the connection between the third connecting shaft 40 and the first support part 41. The first support part 41 and the support base 10 are fixedly connected. A third bevel gear 42 is fixedly connected to one end of the third connecting shaft 40, and a third damping disc 45 is fixedly connected to the other end of the third connecting shaft 40. The bottom of the rotating sleeve 9 A fourth bevel gear 43 is fixedly connected to the third damping disc 45, and a rotating shaft 2 passes through the fourth bevel gear 43. The third bevel gear 42 and the fourth bevel gear 43 mesh with each other. A fourth connecting shaft 44 is provided on one side of the third damping disc 45. A second support part 55 is sleeved on the outside of the fourth connecting shaft 44. A bearing is provided at the connection between the second support part 55 and the fourth connecting shaft 44. The second support part 55 and the support base 10 are fixedly connected. A fourth damping disc 46 is fixedly connected to the fourth connecting shaft 44, and the fourth damping disc 46 is in contact with the third damping disc 45. A second gear 47 is fixedly sleeved on the outside of the fourth connecting shaft 44. The bottom of the support plate 11... A toothed plate 48 is fixedly connected to the support plate 11, and the toothed plate 48 meshes with the second gear 47. Two guide posts 49 are fixedly connected to the bottom of the support plate 11. A guide sleeve 50 is sleeved on the outside of the guide posts 49. The bottom end of the guide sleeve 50 is fixedly connected to the support base 10. The second drive includes a third gear 52 fixedly sleeved on the outside of 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 meshes with the third gear 52. Several rollers 51 are fixedly connected to the bottom of the support base 10, and the rollers 51 are in contact with the top of the base 1.

[0039] The lifting frame 14 is driven to move vertically relative to the rotating shaft 2 by the hydraulic telescopic rod 39. When the iron plate 32 is above the lower mold 6 containing the molded part and with the cavity opening facing downwards, the magnet block 37 is also above the lower mold 6. As the lifting frame 14 moves downwards, the iron plate 32 and the magnet block 37 come into contact and are magnetically attracted together. The iron plate 32 pushes the magnet block 37 and the movable rod 35 downwards, causing the ejector plate 34 and the magnet ring 36 to separate. The ejector plate 34 moves out of the ejector groove 33, ejecting the molded part located in the lower mold 6. The molded part falls onto the support plate 11. As the ejector plate 34 continues to move downwards, the molded part pushes the support plate 11 downwards synchronously. The support plate 11 drives the toothed plate 48 and guide post 49 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 disc 46 to rotate relative to the third damping disc 45. When the molded part is released from the cavity of the lower mold 6, the operator can remove the molded part from the support plate 11. When the lifting frame 14 and the iron plate 32 move upwards, the iron plate 32 drives the magnet block 37 and the movable rod 35 to move upwards synchronously through magnetic force, so that the ejector plate 34 slides back into the ejector groove 33, and finally ejects the iron plate 34 and the magnet ring 36. The ejector plate 34 and the magnetic ring 36 are magnetically attracted to each other, and the ejector plate 34 is fixed relative to the lower mold 6. As the lifting frame 14 continues to move upward, the iron plate 32 and the magnetic block 37 separate. During the upward movement of the lifting frame 14, the first driver drives the rotating sleeve 9 to rotate. 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 connecting shaft 40 drives the third damping disc 45 to rotate. The third damping disc 45 drives the fourth damping disc 46 and the fourth connecting shaft 44 to rotate through friction. The fourth connecting shaft 44 drives the toothed plate 48 to move upward through the second gear 47. When the support plate 11 is in contact with the lower mold 6 again... When the bottom of the lower mold 6 contacts each other, the fourth connecting shaft 44 and the fourth damping disk 46 stop rotating. As the third connecting shaft 40 continues to rotate, the third damping disk 45 cannot drive the fourth damping disk 46 to rotate through friction, ensuring that the pallet 11 stops moving when it reaches the preset height. Through the design of the guide post 49 and the guide sleeve 50, the pallet 11 moves smoothly in the vertical direction relative to the support base 10. The fourth gear 54 is driven to rotate by the second motor 53. The fourth gear 54 drives the rotating shaft 2 to rotate through the third gear 52. Through the design of the roller 51, the stability of the support base 10 when it follows the rotating shaft 2 is increased.

[0040] This embodiment of a cemented carbide extrusion molding method includes the cemented carbide extrusion molding apparatus as described above, and includes the following steps:

[0041] Step 1: The lifting frame 14 is driven to move down by the height adjustment component. The lifting frame 14 drives the upper mold 15 to move down. After the upper mold 15 and the lower mold 6 are closed, the upper mold 15 and the lower mold 6 extrude the alloy raw material. After the alloy raw material in the lower mold 6 is formed, the lifting frame 14 is driven to move up by the height adjustment component to separate the upper mold 15 and the lower mold 6. When the upper mold 15 returns to its initial height, the lifting frame 14 is stopped from moving up by the height adjustment component. The rotating shaft 2 is driven to rotate by the second driver so that the upper mold 15 rotates to the top of the next lower mold 6. The operator adds alloy raw material to the lower mold 6 located below the upper mold 15 again, and the next extrusion molding of the alloy raw material can be carried out.

[0042] Step 2: While the lifting frame 14 rotates, one of the pressing columns 16 moves to the top of the lower mold 6 containing the molded part. At this time, the upper mold 15 is located above one of the lower molds 6. When the lifting frame 14 is driven to move down by the height adjustment component, the pressing column 16 drives the stop plate 13 to slide horizontally through the sliding adjustment component, releasing the position limitation of the support block 12 and the corresponding first connecting shaft 7. The rotating sleeve 9 is driven to rotate by the first driver. The rotating sleeve 9 drives the first connecting shaft 7, which has been released from position limitation, to rotate through the damping rotation structure, so that the lower mold 6 containing the molded part rotates. While the lower mold 6 rotates, the height adjustment component drives the lifting frame 14 and the pressing column 16 to move up. The sliding adjustment component drives the stop plate 13 to return to the initial position relative to the support ring 4. When the first connecting shaft 7 drives the lower mold 6 to rotate 180 degrees, the cavity opening of the lower mold 6 containing the molded part faces downward.

[0043] Step 3: When the second driver drives the rotating shaft 2 to rotate, so that the lifting frame 14 drives the upper mold 15 to rotate to the next station, at this time the rotating shaft 2 drives the support base 10 and the pallet 11 to rotate synchronously. The pallet 11 rotates to the bottom of the lower mold 6, which contains the molded part and has the cavity opening facing downward. When the lifting frame 14 moves down again, the lifting frame 14 pushes the molded part in the lower mold 6 out of the cavity through the magnetic ejection structure. The molded part falls onto the pallet 11. The operator removes the molded part from the pallet 11. When the rotating sleeve 9 drives the first connecting shaft 7, which is released from the position limitation, to rotate through the damping rotation structure, and the height adjustment component drives the lifting frame 14 and the pressing column 16 to move up, the rotating sleeve 9 drives the pallet 11 to move up synchronously through the damping lifting assembly. The pallet 11 contacts the bottom of the lower mold 6 again.

[0044] Step 4: When the lifting frame 14 drives the upper mold 15 to rotate to the next station, and the support base 10 and the pallet 11 move to the bottom of the next lower mold 6 containing the molded part and with the cavity opening facing downwards, another pressing column 16 moves to the top of the lower mold 6 that has completed demolding and has the cavity opening facing downwards. When the lifting frame 14 drives the pressing column 16 to move downwards, similarly, the pressing column 16 can rotate the lower mold 6 that has completed demolding and has the cavity opening facing downwards by 180 degrees again, so that the cavity opening of the lower mold 6 faces upwards, completing the reset of the lower mold 6, and then alloy raw materials can be added into the lower mold 6 again.

[0045] Working principle: The cavity openings of one lower mold 6 and one adjacent lower mold 6 located above the support plate 11 face downwards, while the cavity openings of the other lower molds 6 face upwards. A first driver drives a rotating sleeve 9 to rotate. The rotating sleeve 9, through a damping rotation structure, drives a first connecting shaft 7 to rotate, causing one of the support blocks 12 on the first connecting shaft 7 to contact the top of a stop plate 13. This ensures that both the lower molds 6 with downward-facing cavity openings and those with upward-facing cavity openings are parallel to the horizontal plane. Simultaneously, the rotating sleeve 9 drives the support plate 11 upwards through a damping lifting assembly. After the support plate 11 contacts the bottom of one corresponding lower mold 6 with a downward-facing cavity opening, the support plate 11 stops moving upwards. Once the initial positions of the lower molds 6 and the support plate 11 are adjusted... Afterwards, the worker adds alloy material to a lower mold 6 located below the upper mold 15. Once the alloy material is added, the lifting frame 14 is driven downwards via the height adjustment mechanism. The lifting frame 14 then drives the upper mold 15 downwards. When the upper mold 15 and lower mold 6 are closed, they extrude and shape the alloy material. After the alloy material in the lower mold 6 is shaped, the lifting frame 14 is driven upwards via the height adjustment mechanism to separate the upper mold 15 and lower mold 6. When the upper mold 15 returns to its initial height, the lifting frame 14 is stopped from moving upwards via the height adjustment mechanism. The second driver then drives the rotating shaft 2 to rotate. The rotating shaft 2, through the height adjustment mechanism, drives the lifting frame 14 and the upper mold 15 to rotate, allowing the upper mold 15 to rotate to the next lower mold. Above 6, the worker adds alloy material to one of the lower molds 6 located below the upper mold 15, and the next extrusion molding of the alloy material can be carried out. While the lifting frame 14 rotates, one of the pressing columns 16 moves to the top of the lower mold 6 containing the molded part. At this time, the upper mold 15 is located above one of the lower molds 6. When the lifting frame 14 is driven to move down by the height adjustment component, the pressing column 16 drives the stop plate 13 to slide horizontally through the sliding adjustment component. When the stop plate 13 is no longer in contact with the bottom of the support block 12, the position restriction of the support block 12 and the corresponding first connecting shaft 7 is released, and the lifting frame 14 descends to the lowest position. At this time, the upper mold 15 and the lower mold 6 are in the mold closing state, driven by the first driver. The rotating sleeve 9 rotates, and the rotating sleeve 9 drives the first connecting shaft 7, which is free from position limitations, to rotate through the damping rotation structure, so that the lower mold 6 containing the molded part rotates. Simultaneously, the height adjustment component drives the lifting frame 14 and the pressing column 16 to move upwards, releasing the position limitation on the stop plate 13. The sliding adjustment component drives the stop plate 13 to return to its initial position relative to the support ring 4. After the first connecting shaft 7 drives the lower mold 6 to rotate 180 degrees, the bottom of another support block 12 contacts the stop plate 13, causing the lower mold 6 containing the molded part to rotate 180 degrees, with the cavity opening of the lower mold 6 facing downwards. When the second driver drives the rotating shaft 2 to rotate, so that the lifting frame 14 drives the upper mold 15 to rotate to the next station...At this time, the rotating shaft 2 drives the support base 10 and the pallet 11 to rotate synchronously. The pallet 11 rotates to the bottom of the lower mold 6, which contains the molded part and has its cavity opening facing downwards. When the lifting frame 14 moves down again, during the process of the upper mold 15 and the lower mold 6 closing, the lifting frame 14 uses a magnetic ejection structure to eject the molded part located in the lower mold 6 from the cavity. The molded part falls onto the pallet 11. At the same time, the magnetic ejection structure drives the molded part and the pallet 11 to move down synchronously. Finally, the molded part is removed from the cavity of the lower mold 6, and at this time, the upper mold 15 and the lower mold 6 are in the closed state. The operator removes the molded part located on the pallet 11. When the rotating sleeve 9 drives the first connecting shaft 7, which is released from position limitation, to rotate through the damping rotation structure, and the height adjustment component drives the lifting frame 14 and the pressing column 16 to move up, the rotating sleeve 9 drives the pallet 11 to move up synchronously through the damping lifting assembly. When the lifting frame 14 returns to its initial height, the pallet 11 contacts the bottom of the lower mold 6 again. When the lifting frame 14 drives the upper mold 15 to rotate to the next station, and the support base 10 and the pallet 11 move to the bottom of the next lower mold 6 containing the molded part with the cavity opening facing downwards, another pressing column 16 moves to the top of the lower mold 6 that has completed demolding and has the cavity opening facing downwards. When the lifting frame 14 drives the pressing column 16 to move downwards, similarly, the pressing column 16 can rotate the lower mold 6 that has completed demolding and has the cavity opening facing downwards by 180 degrees again, so that the cavity opening of the lower mold 6 faces upwards, completing the reset of the lower mold 6. Alloy raw materials can then be added into the lower mold 6 again. Several lower molds 6 can be extruded and molded sequentially. The lower mold 6 containing the molded part is flipped 180 degrees so that the cavity opening of the lower mold 6 faces downwards. The gravity of the molded part provides assistance for demolding, reducing the force of the magnetic ejection structure on the molded part, facilitating demolding of the molded part, and reducing the possibility of leaving indentations on the molded part, thus reducing the defect rate.

[0046] As the lifting frame 14 descends, the pressing column 16 contacts the inclined surface of the fixing block 17. The pressing column 16 slides on the inclined surface of the fixing block 17, pushing the fixing block 17 and the stop plate 13 to move. This increases the length of the stop plate 13 within the slide groove 20, compressing the spring 21 and reducing the contact area between the stop plate 13 and the bottom of the support block 12. When the lifting frame 14 descends to its lowest position, the stop plate 13 no longer contacts the bottom of the support block 12, releasing the contact area between the support block 12 and the stop plate 13. The position of the first connecting shaft 7 is limited. The rotating sleeve 9 drives the first connecting shaft 7 and the support block 12 to rotate through the damping rotation structure. As the lifting frame 14 moves upward, the pressing column 16 no longer presses the inclined surface of the fixed block 17. The compression spring 21 drives the stop plate 13 and the fixed block 17 to move in the opposite direction, eventually causing the stop plate 13 to return to its initial position. When the first connecting shaft 7 and the lower mold 6 rotate 180 degrees, the other support block 12 contacts the top of the stop plate 13, so that the first connecting shaft 7 and the lower mold 6 can automatically stop after rotating 180 degrees.

[0047] The first motor 27 drives the first gear 28 to rotate. The first gear 28 drives the rotating sleeve 9 to rotate through the gear ring 29. The rotating 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 rotate synchronously through friction. When one of the support blocks 12 and the top of the stop plate 13 come into contact, the first connecting shaft 7 and the second damping disc 26 stop rotating. As the second connecting shaft 22 and the first damping disc 25 continue to rotate, the first damping disc 25 can no longer drive the second damping disc 26 and the first connecting shaft 7 to rotate through friction, so that the lower mold 6 remains parallel to the horizontal plane. The design of the second support plate 31 and the support shaft 30 supports the lower mold 6 so that the lower mold 6 can rotate smoothly relative to the base 1.

[0048] The lifting frame 14 is driven to move vertically relative to the rotating shaft 2 by the hydraulic telescopic rod 39. When the iron plate 32 is above the lower mold 6 containing the molded part and with the cavity opening facing downwards, the magnet block 37 is also above the lower mold 6. As the lifting frame 14 moves downwards, the iron plate 32 and the magnet block 37 come into contact and are magnetically attracted together. The iron plate 32 pushes the magnet block 37 and the movable rod 35 downwards, causing the ejector plate 34 and the magnet ring 36 to separate. The ejector plate 34 moves out of the ejector groove 33, ejecting the molded part located in the lower mold 6. The molded part falls onto the support plate 11. As the ejector plate 34 continues to move downwards, the molded part pushes the support plate 11 downwards synchronously. The support plate 11 drives the toothed plate 48 and guide post 49 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 disc 46 to rotate relative to the third damping disc 45. When the molded part is released from the cavity of the lower mold 6, the operator can remove the molded part from the support plate 11. When the lifting frame 14 and the iron plate 32 move upwards, the iron plate 32 drives the magnet block 37 and the movable rod 35 to move upwards synchronously through magnetic force, so that the ejector plate 34 slides back into the ejector groove 33, and finally ejects the iron plate 34 and the magnet ring 36. The ejector plate 34 and the magnetic ring 36 are magnetically attracted to each other, and the ejector plate 34 is fixed relative to the lower mold 6. As the lifting frame 14 continues to move upward, the iron plate 32 and the magnetic block 37 separate. During the upward movement of the lifting frame 14, the first driver drives the rotating sleeve 9 to rotate. 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 connecting shaft 40 drives the third damping disc 45 to rotate. The third damping disc 45 drives the fourth damping disc 46 and the fourth connecting shaft 44 to rotate through friction. The fourth connecting shaft 44 drives the toothed plate 48 to move upward through the second gear 47. When the support plate 11 is in contact with the lower mold 6 again... When the bottom of the lower mold 6 contacts each other, the fourth connecting shaft 44 and the fourth damping disk 46 stop rotating. As the third connecting shaft 40 continues to rotate, the third damping disk 45 cannot drive the fourth damping disk 46 to rotate through friction, ensuring that the pallet 11 stops moving when it reaches the preset height. Through the design of the guide post 49 and the guide sleeve 50, the pallet 11 moves smoothly in the vertical direction relative to the support base 10. The fourth gear 54 is driven to rotate by the second motor 53. The fourth gear 54 drives the rotating shaft 2 to rotate through the third gear 52. Through the design of the roller 51, the stability of the support base 10 when it follows the rotating shaft 2 is increased.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cemented carbide extrusion molding apparatus, comprising a base (1), characterized in that: A rotating shaft (2) is provided above the base (1). The bottom end of the rotating shaft (2) and the base (1) are connected by a bearing. A support sleeve (3) is fitted on the outside of the rotating shaft (2). A bearing is provided at the connection between the support sleeve (3) and the rotating shaft (2). A support ring (4) is fitted on the outside of the support sleeve (3). The support ring (4) and the support sleeve (3) are connected by several first connecting plates (5). Several lower molds (6) are provided above the base (1). A first connecting shaft (7) is fixedly connected to the lower mold (6). A fixed frame (8) is fitted around the shaft (7). A bearing is provided at the connection between the first connecting shaft (7) and the fixed frame (8). The fixed frame (8) and the support ring (4) are fixedly connected. The lower mold (6) and the base (1) are connected by a rotating support unit. A rotating sleeve (9) located below the support sleeve (3) is fitted around the shaft (2). A bearing is provided at the connection between the rotating sleeve (9) and the shaft (2). The rotating sleeve (9) and the first connecting shaft (7) are connected by a damping rotation structure. A fixed... Two support blocks (12) are connected. A stop plate (13) is provided on one side of the first connecting shaft (7). The stop plate (13) contacts the bottom of one of the support blocks (12). The stop plate (13) and the support ring (4) are connected by a sliding adjustment component. The support ring (4) is provided with a first driver for driving the rotating sleeve (9) to rotate. The base (1) is provided with a second driver that cooperates with the rotating shaft (2). A support seat (10) located below the rotating sleeve (9) is fixedly connected to the rotating shaft (2). A support plate (11) is provided above the support ring (4). The support plate (11) and the rotating sleeve (9) are connected by a damping lifting assembly. A lifting frame (14) is provided above the support ring (4). Two pressing columns (16) are fixedly connected to the bottom of the lifting frame (14). The lifting frame (14) and the rotating shaft (2) are connected by a height adjustment component. An upper mold (15) that cooperates with the lower mold (6) is fixedly connected to the bottom of the lifting frame (14). A magnetic ejection structure that cooperates with the lifting frame (14) is provided on the lower mold (6). When the lifting frame (14) is driven to move down by the height adjustment component, the pressing column (16) drives the stop plate (13) to slide horizontally through the sliding adjustment component, thereby releasing the position limitation of the support block (12) and the corresponding first connecting shaft (7); When the rotating sleeve (9) drives the first connecting shaft (7) that is released from position limitation to rotate through the damping rotating structure, and the height adjustment component drives the lifting frame (14) and the pressing column (16) to move upward, the rotating sleeve (9) drives the tray (11) to move upward synchronously through the damping lifting assembly; The damping rotation structure includes several first bevel gears (23) disposed between the support sleeve (3) and the support ring (4). A second connecting shaft (22) is fixedly connected to the first bevel gear (23), and the end of the second connecting shaft (22) away from the first bevel gear (23) passes through the support ring (4). A bearing is provided at the connection between the second connecting shaft (22) and the support ring (4). A second bevel gear (24) is sleeved on the outside of the rotating shaft (2). The bottom of the second bevel gear (24) is fixedly connected to the top of the rotating sleeve (9), and the first bevel gear (23) and the second bevel gear (24) mesh with each other. 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 the second damping disc (26) and the first damping disc (25) are in contact. The magnetic ejection structure includes an iron plate (32) fixedly installed at the bottom of the lifting frame (14). Several ejection slots (33) are provided on the inner wall of the cavity of the lower mold (6). An ejection iron plate (34) is provided in the ejection slot (33). A movable rod (35) is fixedly connected to the ejection iron plate (34). The end of the movable rod (35) away from the ejection iron plate (34) passes through the lower mold (6). A magnetic ring (36) is sleeved on the outside of the movable rod (35). The magnetic ring (36) and the ejection iron plate (34) are magnetically attracted. The side of the magnetic ring (36) away from the ejection iron plate (34) is fixedly connected to the inner wall of the ejection slot (33). A magnetic block (37) that cooperates with the iron plate (32) is fixedly connected to the end of the movable rod (35) away from the ejection iron plate (34).

2. The cemented carbide extrusion molding apparatus according to claim 1, characterized in that: The sliding adjustment component includes a fixing block (17) fixedly installed on the top of the stop plate (13). The fixing block (17) has an inclined surface that cooperates with the pressing column (16). 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 by a second connecting plate (19). A sliding groove (20) is provided on the first support plate (18). One end of the stop plate (13) is located in the sliding groove (20), and the inner wall of the stop plate (13) and the sliding groove (20) are connected by a compression spring (21).

3. The cemented carbide extrusion molding apparatus according to claim 1, characterized in that: The first driver includes a first motor (27) fixedly installed at the bottom of the support ring (4). The output end of the first motor (27) is fixedly connected to a first gear (28). The outer fixed sleeve of the rotating sleeve (9) is provided with a gear ring (29), and the gear ring (29) and the first gear (28) mesh with each other.

4. The cemented carbide extrusion molding apparatus according to claim 1, characterized in that: The rotating support unit includes a support shaft (30) fixedly installed on the lower mold (6), a second support plate (31) is sleeved on the outside of the support shaft (30), a bearing is provided at the connection between the support shaft (30) and the second support plate (31), and the bottom of the second support plate (31) is fixedly connected to the base (1).

5. The cemented carbide extrusion molding apparatus according to claim 1, characterized in that: The height adjustment component includes a top plate (38) fixedly installed at the top of the rotating shaft (2), and the bottom of the top plate (38) and the lifting frame (14) are connected by several hydraulic telescopic rods (39).

6. The cemented carbide extrusion molding apparatus according to claim 1, characterized in that: The damping lifting assembly includes a third connecting shaft (40) disposed above the support base (10). A first support part (41) is sleeved on the outside of the third connecting shaft (40). A bearing is provided at the connection between the third connecting shaft (40) and the first support part (41). The first support part (41) and the support base (10) are fixedly connected. A third bevel gear (42) is fixedly connected to one end of the third connecting shaft (40). A third damping disc (45) is fixedly connected to the other end of the third connecting shaft (40). A fourth bevel gear (43) is fixedly connected to the bottom of the rotating sleeve (9), and the rotating shaft (2) passes through the fourth bevel gear (43). The third bevel gear (42) and the fourth bevel gear (43) mesh with each other. A fourth connecting shaft (44) is provided on one side of the third damping disc (45). A second support part (55) is sleeved on the outside of the connecting shaft (44). A bearing is provided at the connection between the second support part (55) and the fourth connecting shaft (44). The second support part (55) and the support seat (10) are fixedly connected. A fourth damping disc (46) is fixedly connected on the fourth connecting shaft (44), and the fourth damping disc (46) and the third damping disc (45) are in contact. A second gear (47) is fixedly sleeved on the outside of the fourth connecting shaft (44). A toothed plate (48) is fixedly connected to the bottom of the support plate (11), and the toothed plate (48) meshes with the second gear (47). Two guide posts (49) are fixedly connected to the bottom of the support plate (11). A guide sleeve (50) is sleeved on the outside of the guide post (49). The bottom end of the guide sleeve (50) is fixedly connected to the support seat (10).

7. The cemented carbide extrusion molding apparatus according to claim 1, characterized in that: The second driver includes a third gear (52) fixedly sleeved on the outside of the rotating shaft (2), a second motor (53) fixedly connected to the base (1), a fourth gear (54) fixedly connected to the output end of the second motor (53), the fourth gear (54) and the third gear (52) meshing with each other, and a number of rollers (51) fixedly connected to the bottom of the support base (10), and the rollers (51) contact the top of the base (1).

8. A method for extruding cemented carbide, comprising the cemented carbide extrusion molding apparatus as described in claim 1, characterized in that: Includes the following steps: Step 1: Drive the lifting frame (14) to move down through the height adjustment component. The lifting frame (14) drives the upper mold (15) to move down. When the upper mold (15) and the lower mold (6) are closed, the upper mold (15) and the lower mold (6) extrude the alloy material. After the alloy material in the lower mold (6) is formed, drive the lifting frame (14) to move up through the height adjustment component so that the upper mold (15) and the lower mold (6) are separated. When the upper mold (15) returns to its initial height, stop driving the lifting frame (14) to move up through the height adjustment component. Drive the rotating shaft (2) to rotate through the second driver so that the upper mold (15) rotates to the top of the next lower mold (6). The worker adds alloy material to the lower mold (6) located below the upper mold (15) again, and the next extrusion molding of the alloy material can be carried out. Step 2: While the lifting frame (14) is rotating, one of the pressing columns (16) moves to the top of the lower mold (6) containing the molded part. At this time, the upper mold (15) is located above one of the lower molds (6). When the lifting frame (14) is driven to move down by the height adjustment component, the pressing column (16) drives the stop plate (13) to slide horizontally through the sliding adjustment component, releasing the position limitation of the support block (12) and the corresponding first connecting shaft (7). The rotating sleeve (9) is driven to rotate by the first driver. The rotating sleeve (9) drives the first connecting shaft (7) to rotate through the damping rotation structure, so that the lower mold (6) containing the molded part inside rotates. While the lower mold (6) is rotating, the height adjustment component drives the lifting frame (14) and the pressing column (16) to move up. The sliding adjustment component drives the stop plate (13) to reset to the initial position relative to the support ring (4). When the first connecting shaft (7) drives the lower mold (6) to rotate 180 degrees, the cavity opening of the lower mold (6) containing the molded part inside faces downward. Step 3: When the second driver drives the rotating shaft (2) to rotate, so that the lifting frame (14) drives the upper mold (15) to rotate to the next station, at this time the rotating shaft (2) drives the support base (10) and the pallet (11) to rotate synchronously. The pallet (11) rotates to the bottom of the lower mold (6) containing the molded part and with the cavity opening facing downward. When the lifting frame (14) moves down again, the lifting frame (14) pushes the molded part in the lower mold (6) out of the cavity through the magnetic ejection structure. The molded part falls onto the pallet (11). The worker takes off the molded part on the pallet (11). When the rotating sleeve (9) drives the first connecting shaft (7) to rotate through the damping rotation structure, and the height adjustment component drives the lifting frame (14) and the pressing column (16) to move up, the rotating sleeve (9) drives the pallet (11) to move up synchronously through the damping lifting assembly. The pallet (11) contacts the bottom of the lower mold (6) again. Step 4: When the lifting frame (14) drives the upper mold (15) to rotate to the next station, and the support base (10) and the pallet (11) move to the bottom of the next lower mold (6) containing the molded part and with the cavity opening facing down, another pressing column (16) moves to the top of the lower mold (6) that has completed demolding and has the cavity opening facing down. When the lifting frame (14) drives the pressing column (16) to move down, similarly, the pressing column (16) can rotate the lower mold (6) that has completed demolding and has the cavity opening facing down by 180 degrees again, so that the cavity opening of the lower mold (6) faces up, and the lower mold (6) is reset. Then, alloy raw materials can be added into the lower mold (6) again.

Images