Equipment for processing expanded polytetrafluoroethylene (ePTFE) gaskets

Abstract

This invention discloses a processing equipment for expanded polytetrafluoroethylene (ePTFE) gaskets, comprising a support frame, a hydraulic cylinder mounted on the support frame, a pressing cylinder fixed to the output end of the hydraulic cylinder, a support column intermittently rotatably connected to the upper end of the support frame and cooperating with the output end of the hydraulic cylinder, a circular plate fixedly connected to the upper end of the support column, the upper end of the circular plate having multiple forming grooves arranged in a ring array and cooperating with the pressing cylinder, a circular ring with an arc-shaped concave surface at the lower end of the circular plate, and an ejection mechanism for ejecting the formed gasket within the forming grooves. This invention allows for continuous pressing of PTFE rings, avoiding the drawbacks of existing technologies that require manual filling and have low work continuity, thus reducing the workload of workers. Furthermore, it allows for the stacking of PTFE rings without manual intervention.

Description

Technical Field

[0001] This invention relates to the field of polytetrafluoroethylene (PTFE) gasket processing technology, and more particularly to a processing equipment for expanded polytetrafluoroethylene (ePTFE) gaskets. Background Technology

[0002] PTFE gaskets, also known as polytetrafluoroethylene gaskets or Teflon gaskets, are flat gaskets, V-shaped gaskets, piston rings, ball valve washers, etc., made from PTFE rods, tubes, or plates through mechanical turning or cutting.

[0003] The processing of PTFE gaskets involves pressing powder into shape using a hydraulic press. Currently, the pressing process involves manually placing the powder into a mold groove, then placing a pressure ring, followed by placing the mold and pressure ring into the hydraulic press. After pressing, the worker removes the formed PTFE ring, then scrapes off the rough surface of the upper end of the PTFE ring with a scraper, and finally stacks the PTFE rings. This method is inefficient, time-consuming, and labor-intensive, undoubtedly increasing the workload of the workers. In response to this, this application proposes a processing equipment for expanded polytetrafluoroethylene (ePTFE) gaskets. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems by providing a processing equipment for expanded polytetrafluoroethylene (ePTFE) gaskets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A processing device for expanded polytetrafluoroethylene (ePTFE) gaskets includes a support frame, a hydraulic cylinder mounted on the support frame, a pressing cylinder fixed to the output end of the hydraulic cylinder, a support column intermittently rotatably connected to the upper end of the support frame and cooperating with the output end of the hydraulic cylinder, a circular plate fixedly connected to the upper end of the support column, a plurality of forming grooves arranged in a ring array and cooperating with the pressing cylinder on the upper end of the circular plate, a circular ring with an arc-shaped concave surface on the lower part of the circular plate, an ejection mechanism for ejecting the formed gaskets in the forming grooves, a bracket fixed on the support frame, a pushing mechanism mounted on the bracket, a stacking mechanism on the support frame that rotates synchronously with the support column and can cooperate with the pushing mechanism to stack the gaskets, a movable plate fixed to the output end of the hydraulic cylinder, an air bladder cooperating with the pushing mechanism fixed between the movable plate and the bracket, a feeding cylinder for feeding material into the forming grooves and sliding against the upper end of the circular plate mounted on the support frame, a vertical plate fixed on the support frame, and a vibration compaction mechanism between the vertical plate and the movable plate.

[0007] Preferably, the bottom of the ring is fixed with two fixing posts, and the lower ends of the two fixing posts are fixedly connected to the support frame.

[0008] Preferably, a short rod is rotatably connected to the bottom of the support frame, a gear-changing component coaxially connected to two fixed columns is mounted on the short rod, the support column is fixedly connected to the shaft end of the gear-changing component, a transmission rod is fixed to the shaft end of the gear-changing component, the transmission rod is rotatably connected to the support frame, a one-way bearing is mounted on the transmission rod, a gear is mounted on the one-way bearing, a connecting rod is fixed to the bottom of the moving plate, and a rack plate meshing with the gear is fixed to the other end of the connecting rod.

[0009] Preferably, the transmission component includes a housing fixed on a fixed column, and a meshing worm gear and worm are provided inside the housing. The transmission rod is fixedly connected to the worm, and the short rod, support column and worm gear are coaxially fixedly connected. The transmission rod, short rod, support column and housing are rotatably arranged.

[0010] Preferably, the ejection mechanism includes a fixed block fixed in the forming groove, a cylinder that mates with the forming groove is fixed at the upper end of the fixed block, an annular forming cavity is formed between the cylinder and the forming groove, a movable ring is slidably connected in the annular forming cavity, two vertical rods are fixed at the bottom of the movable ring, a circular block located at the bottom of the circular plate is fixed at the bottom of the vertical rods, a circular cylinder that mates with the circular ring is fixed at the bottom of the circular block, and a first spring is fixed between the circular block and the fixed block.

[0011] Preferably, the pushing mechanism includes a piston cylinder fixed on a bracket, the piston cylinder being connected to an air bladder via a conveying pipe, a piston being slidably connected inside the piston cylinder, a moving rod being fixedly connected to the piston, and an arc-shaped pushing block being fixedly attached to the moving rod and sliding with the upper end of the circular plate.

[0012] Preferably, the stacking mechanism includes a U-shaped plate mounted on a support frame, a placement plate slidably connected inside the U-shaped plate opposite to the arc-shaped push block, a screw fixed to the bottom of the placement plate, a threaded cylinder threaded to the lower end of the screw, a hexagonal cylinder fixed to the bottom of the threaded cylinder, a hexagonal prism slidably connected inside the hexagonal cylinder, and transmission wheels mounted on both the hexagonal prism and the short rod, with the two transmission wheels connected by a belt.

[0013] Preferably, the vibration compaction mechanism includes a striking column that slides through the vertical plate and is opposite to the feeding cylinder. A positioning block is fixed on the striking column. A second spring is fixed between the positioning block and the vertical plate. The positioning block is provided with a limiting tooth that can only rotate upward. A driving plate is fixed on the moving plate. A driving tooth that cooperates with the limiting tooth is fixed on the driving plate.

[0014] Preferably, a scraper is fixed on the support frame, and the scraper is slidably abutted against the upper end of the circular plate.

[0015] Preferably, the arc-shaped concave surface includes a first arc surface, a first inclined surface, a second arc surface, and a second inclined surface. The first arc surface and the first inclined surface are connected, the first inclined surface and the second arc surface are connected, the second arc surface and the second inclined surface are connected, and the second inclined surface is connected to the upper end surface of the ring.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows:

[0017] 1. The moving plate moves downward, causing the drive plate and drive teeth to move downward, so that the striking column strikes the feeding cylinder, which can make the material powder in the feeding cylinder fill the forming groove more fully, thereby ensuring the thickness and quality of each PTFE ring.

[0018] 2. The downward movement of the moving plate will compress the air bladder, thereby allowing the air inside the air bladder to be transported to the piston cylinder through the delivery pipe. The movement of the arc-shaped pusher can push the PTFE ring onto the placement plate, thereby collecting the PTFE ring.

[0019] 3. When the output end of the hydraulic cylinder is fully reset, the forming trough containing the raw material powder moves to the bottom of the pressing cylinder, and the rear forming trough is directly opposite the feeding cylinder for feeding.

[0020] 4. Since the placement plate cannot rotate, the threaded cylinder is rotated at a certain angle to make the screw drive the placement plate to move down a certain distance. When it stops moving, the upper end face of the PTFE ring on the upper part of the placement plate is flush with the upper end face of the circular block, so as to prepare for the next stacking of PTFE rings.

[0021] 5. The formed PTFE ring can be pushed upwards by a certain length. This length is the rough surface at the top of the PTFE ring when it is pressed. Therefore, as the round plate drives the PTFE ring to rotate, the rough surface at the top of the PTFE ring can be cleaned by a scraper.

[0022] 6. When the circular cylinder moves to the upper end of the ring through the second inclined plane, the circular cylinder can drive the moving ring to move upward, which can completely push out the PTFE ring. At this time, the moving ring is flush with the upper end of the circular plate, so that the arc-shaped push block can push out the PTFE ring without manual material handling.

[0023] 7. It can continuously press PTFE rings, avoiding the drawbacks of existing technologies that require manual filling and have low work continuity, which affects production efficiency.

[0024] In summary, this invention can continuously press PTFE rings, avoiding the drawbacks of manual material handling and low work continuity that affect production efficiency in existing technologies, reducing the workload of workers, and enabling the stacking of PTFE rings without manual intervention. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the structure of a processing equipment for expanded polytetrafluoroethylene sealing gaskets proposed in this invention;

[0026] Figure 2 This is a rear view of an expanded polytetrafluoroethylene (ePTFE) gasket processing equipment proposed in this invention.

[0027] Figure 3 This is a schematic diagram of the structure for removing the threaded cylinder in a processing equipment for expanded polytetrafluoroethylene sealing gaskets proposed in this invention;

[0028] Figure 4 This is a cross-sectional view of an expanded polytetrafluoroethylene (ePTFE) gasket processing equipment proposed in this invention;

[0029] Figure 5 This is a schematic diagram of the ejection mechanism in a processing equipment for expanded polytetrafluoroethylene sealing gaskets proposed in this invention;

[0030] Figure 6 This is a side view of the ejection mechanism of an expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to the present invention.

[0031] Figure 7 This is a schematic diagram of the ring structure in the expanded polytetrafluoroethylene (ePTFE) gasket processing equipment proposed in this invention.

[0032] In the diagram: 1. Support frame, 2. Feeding cylinder, 3. Hydraulic cylinder, 4. Pressing cylinder, 5. Bracket, 6. Airbag, 7. Rack plate, 8. One-way bearing, 9. Gear, 10. Transmission rod, 11. U-shaped plate, 12. Support column, 13. Circular plate, 14. Placement plate, 15. Scraper, 16. Piston cylinder, 17. Arc-shaped push block, 18. Forming groove, 19. Column, 20. Fixing block, 21. Moving ring, 22. Vertical rod, 23. Circular block, 24. Circular column, 25. Screw, 26. Threaded cylinder, 27. Hexagonal cylinder, 28. Belt, 29. Fixing column, 30. Circular ring, 31. Drive plate, 32. Drive gear, 33. Positioning block, 34. Limiting gear, 35. Vertical plate, 36. Striking column, 37. Conveying pipe, 38. First spring, 39. Hexagonal prism, 40. Transmission wheel, 41. Second spring, 42. Arc-shaped concave surface, 43. Moving plate, 44. Speed ​​change component, 45. Moving rod, 46. Piston, 47. Connecting rod. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-7A processing device for expanded polytetrafluoroethylene (ePTFE) gaskets includes a support frame 1, on which a hydraulic cylinder 3 is mounted. A pressing cylinder 4 is fixed to the output end of the hydraulic cylinder 3. A support column 12, which mates with the output end of the hydraulic cylinder 3, is intermittently rotatably connected to the upper end of the support frame 1. A circular plate 13 is fixedly connected to the upper end of the support column 12. A short rod is rotatably connected to the bottom of the support frame 1. A speed-changing component 44, which is coaxially mounted on the short rod and fixedly connected to two fixed columns 29, is fixedly connected to the shaft end of the support column 12. A transmission rod 10 is fixed to the shaft end of the speed-changing component 44. The transmission rod 10 is connected to the support frame 1. The transmission rod 10 is rotatably connected to a one-way bearing 8, which is mounted on a gear 9. A connecting rod 47 is fixed to the bottom of the moving plate 43, and a rack plate 7 that meshes with the gear 9 is fixed to the other end of the connecting rod 47. The transmission component 44 includes a housing fixed to a fixed column 29. The housing contains a meshing worm gear and a worm. The transmission rod 10 is fixedly connected to the worm. The short rod and the support column 12 are coaxially fixedly connected to the worm gear. The transmission rod 10, the short rod, the support column 12 and the housing are rotatably connected. The transmission method in the transmission component 44 is not limited to this. Transmission gears, etc., can be added according to the actual situation.

[0035] The upper end of the circular plate 13 is provided with multiple forming grooves 18 arranged in a ring array and cooperating with the pressing cylinder 4. A circular ring 30 is provided below the circular plate 13; the circular ring 30 is provided with an arc-shaped concave surface 42, which includes a first arc surface, a first inclined surface, a second arc surface, and a second inclined surface. The first arc surface and the first inclined surface are connected, the first inclined surface and the second arc surface are connected, the second arc surface and the second inclined surface are connected, and the second inclined surface is connected to the upper end surface of the circular ring 30. Figure 7 As shown;

[0036] The molding groove 18 is provided with an ejection mechanism that can eject the molding pad. The ejection mechanism includes a fixed block 20 fixed in the molding groove 18. A cylinder 19 that mates with the molding groove 18 is fixed at the upper end of the fixed block 20. An annular molding cavity is formed between the cylinder 19 and the molding groove 18. A movable ring 21 is slidably connected in the annular molding cavity. Two vertical rods 22 are fixed at the bottom of the movable ring 21. A circular block 23 located at the bottom of the circular plate 13 is fixed at the bottom of the vertical rods 22. A circular column 24 that mates with the circular ring 30 is fixed at the bottom of the circular block 23. A first spring 38 is fixed between the circular block 23 and the fixed block 20.

[0037] A support frame 1 is fixed with a bracket 5, and a pushing mechanism is installed on the bracket 5. The pushing mechanism includes a piston cylinder 16 fixed on the bracket 5. The piston cylinder 16 is connected to the air bag 6 through a conveying pipe 37. A piston 46 is slidably connected inside the piston cylinder 16. A moving rod 45 is fixedly connected to the piston 46. An arc-shaped push block 17 that slides with the upper end of the circular plate 13 is fixed on the moving rod 45.

[0038] The support frame 1 is equipped with a stacking mechanism that rotates synchronously with the support column 12 and can cooperate with the pushing mechanism to stack the gaskets. The stacking mechanism includes a U-shaped plate 11 installed on the support frame 1. A placement plate 14 opposite to the arc-shaped push block 17 is slidably connected inside the U-shaped plate 11. A screw 25 is fixed to the bottom of the placement plate 14. A threaded cylinder 26 is threaded to the lower end of the screw 25. A hexagonal cylinder 27 is fixed to the bottom of the threaded cylinder 26. A hexagonal prism 39 is slidably connected inside the hexagonal cylinder 27. A transmission wheel 40 is installed on both the hexagonal prism 39 and the short rod. The two transmission wheels 40 are connected by a belt 28.

[0039] Among them, a scraper 15 is fixed on the support frame 1. The scraper 15 is slidably abutted against the upper end of the circular plate 13, which can scrape off the rough surface of the upper end of the PTFE ring.

[0040] A movable plate 43 is fixed to the output end of the hydraulic cylinder 3. An air bladder 6 that cooperates with the pushing mechanism is fixed between the movable plate 43 and the bracket 5. A feeding cylinder 2 that feeds material into the forming groove 18 and slides against the upper end of the circular plate 13 is installed on the support frame 1. A vertical plate 35 is fixed on the support frame 1. A vibration mechanism is provided between the vertical plate 35 and the movable plate 43. The vibration mechanism includes a striking column 36 that slides through the vertical plate 35 and is opposite to the feeding cylinder 2. A positioning block 33 is fixed on the striking column 36. A second spring 41 is fixed between the positioning block 33 and the vertical plate 35. A limiting tooth 34 that can only rotate upward is provided on the positioning block 33. A drive plate 31 is fixed on the movable plate 43. A drive tooth 32 that cooperates with the limiting tooth 34 is fixed on the drive plate 31.

[0041] When using this invention, the hydraulic cylinder 3 is activated, and the hydraulic cylinder 3 drives the pressing cylinder 4 to move down and extend into the annular forming cavity. Under the action of the first spring 38, the bottom of the moving ring 21 at this time abuts against the fixed block 20, that is to say, the moving ring 21 cannot move down at this time. With the pressing cylinder 4 pressing down, the powder raw material can be pressed into a PTFE ring.

[0042] The hydraulic cylinder 3 output end works to drive the moving plate 43 to move down. The moving plate 43 drives the connecting rod 47 and the rack plate 7 to move down. Under the action of the one-way bearing 8, the rack plate 7 moves down and drives the gear 9 to rotate, but the transmission rod 10 will not rotate. When the pressing cylinder 4 presses and moves to the bottom, the rack plate 7 disengages from the gear 9. A rubber block that limits the gear 9 can be set on the side of the gear 9 to prevent the gear 9 from rotating randomly, so as to ensure that the rack plate 7 and the gear 9 can mesh stably.

[0043] In addition, another forming groove 18 is directly opposite the feeding cylinder 2. The moving plate 43 moves down, driving the drive plate 31 and drive tooth 32 to move down. The drive tooth 32 moves down intermittently and abuts against the limiting tooth 34, driving the limiting tooth 34, positioning block 33 and striking column 36 to move. When the drive tooth 32 does not abut against the limiting tooth 34, under the action of the second spring 41, the limiting tooth 34, positioning block 33 and striking column 36 are reset. The striking column 36 resets and strikes the feeding cylinder 2. This allows the material powder in the feeding cylinder 2 to be more fully filled in the forming groove 18, thereby ensuring the thickness and quality of each PTFE ring. When the drive tooth 32 moves up, the limiting tooth 34 rotates upward, so that the striking column 36 will not strike the feeding cylinder 2, avoiding the problem of poor flowability caused by repeated tapping and vibration of the powder.

[0044] The downward movement of the movable plate 43 will compress the airbag 6, thereby allowing the air inside the airbag 6 to be transported to the piston cylinder 16 through the delivery pipe 37. The increased pressure inside the piston cylinder 16 drives the piston 46, the movable rod 45, and the arc-shaped push block 17 to move. At this time, the circular column 24 abuts against the upper end face of the circular ring 30. Under the limitation of the circular ring 30, the circular plate 23, the vertical rod 22, and the movable ring 21 move upward, which can push out the formed PTFE ring. The movement of the arc-shaped push block 17 can push the PTFE ring onto the placement plate 14, thereby collecting the PTFE ring.

[0045] After pressing is completed, the hydraulic cylinder 3 drives the pressing cylinder 4 to reset. When the pressing cylinder 4 disengages from the forming groove 18, the rack plate 7 meshes with the gear 9 and drives the gear 9 to rotate. The rotation of the gear 9 drives the one-way bearing 8 and the transmission rod 10 to rotate. The rotation of the transmission rod 10 drives the speed change component 44 to work, thereby realizing the rotation of the short rod, support column 12, and circular plate 13 and rotating at a certain angle. When the output end of the hydraulic cylinder 3 is fully reset, the forming groove 18 containing the raw material powder moves to the bottom of the pressing cylinder 4, and the rear forming groove 18 is directly opposite the feeding cylinder 2 for feeding and loading.

[0046] When the short rod rotates, the hexagonal prism 39, hexagonal cylinder 27, and threaded cylinder 26 can rotate under the transmission of the drive wheel 40 and belt 28. Since the placement plate 14 cannot rotate, the threaded cylinder 26 rotates at a certain angle, causing the screw 25 to drive the placement plate 14 to move down a certain distance. When it stops moving, the upper end face of the PTFE ring on the upper end of the placement plate 14 is flush with the upper end face of the circular block 23, in preparation for the next stacking of PTFE rings. After collection, the threaded cylinder 26 and the placement plate 14 are moved up so that the hexagonal cylinder 27 and the hexagonal prism 39 are aligned, and then a new placement plate 14 is placed, etc.

[0047] The pressing cylinder 4 drives the moving plate 43 to reset, which also resets the piston 46 and the airbag 6;

[0048] The rotation of the circular plate 13 drives the circular column 24 to rotate. When the circular column 24 moves from the first inclined surface to the second arc surface, it can drive the circular column 24 and the moving ring 21 to move upward, thereby pushing the formed PTFE ring upward for a certain length. This length is the rough surface at the upper end of the PTFE ring when it is pressed. Therefore, as the circular plate 13 drives the PTFE ring to rotate, the scraper 15 can clean the rough surface at the upper end of the PTFE ring. Then, when the circular column 24 moves from the second inclined surface to the upper end of the ring 30, it can drive the moving ring 21 to move upward, which can completely push out the PTFE ring. At this time, the moving ring 21 is flush with the upper end of the circular plate 13, so that the arc-shaped pusher 17 can push out the PTFE ring. As described above, the cleaning of the rough surface of the PTFE ring and the material handling are all automated, without the need for manual intervention, which greatly reduces the workload of the workers.

[0049] When the output end of the hydraulic cylinder 3 moves down again to press, the above forming process is repeated. This invention can continuously press the PTFE ring, avoiding the drawbacks of the existing technology of manual filling and low work continuity, which affects production efficiency.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A processing equipment for expanded polytetrafluoroethylene (ePTFE) gaskets, comprising a support frame (1), wherein a hydraulic cylinder (3) is mounted on the support frame (1), and a pressing cylinder (4) is fixed to the output end of the hydraulic cylinder (3), characterized in that, The upper end of the support frame (1) is intermittently rotatably connected to a support column (12) that cooperates with the output end of the hydraulic cylinder (3). The upper end of the support column (12) is fixedly connected to a circular plate (13). The upper end of the circular plate (13) is provided with multiple forming grooves (18) arranged in a ring array and cooperating with the pressing cylinder (4). A circular ring (30) is provided below the circular plate (13). The circular ring (30) is provided with an arc-shaped concave surface (42). The forming groove (18) is provided with an ejection mechanism that can eject the forming pad. A bracket (5) is fixed on the support frame (1). The support frame (1) is equipped with a pushing mechanism. The support frame (1) is equipped with a stacking mechanism that rotates synchronously with the support column (12) and can cooperate with the pushing mechanism to stack the pads. The output end of the hydraulic cylinder (3) is fixed with a moving plate (43). An air bag (6) that cooperates with the pushing mechanism is fixed between the moving plate (43) and the bracket (5). The support frame (1) is equipped with a feeding cylinder (2) that feeds material into the forming groove (18) and slides against the upper end of the circular plate (13). The support frame (1) is fixed with a vertical plate (35). A vibration compaction mechanism is provided between the vertical plate (35) and the moving plate (43).

2. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 1, characterized in that, The bottom of the ring (30) is fixed with two fixing posts (29), and the lower ends of the two fixing posts (29) are fixedly connected to the support frame (1).

3. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 2, characterized in that, A short rod is rotatably connected to the bottom of the support frame (1). A gear changer (44) is mounted on the short rod and is coaxially connected to two fixed columns (29). The support column (12) is fixedly connected to the shaft end of the gear changer (44). A transmission rod (10) is fixed to the shaft end of the gear changer (44). The transmission rod (10) is rotatably connected to the support frame (1). A one-way bearing (8) is mounted on the transmission rod (10). A gear (9) is mounted on the one-way bearing (8). A connecting rod (47) is fixed to the bottom of the moving plate (43). A rack plate (7) that meshes with the gear (9) is fixed to the other end of the connecting rod (47).

4. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 3, characterized in that, The transmission component (44) includes a housing fixed on a fixed column (29), and a meshing worm gear and worm are provided inside the housing. The transmission rod (10) is fixedly connected to the worm, and the short rod and support column (12) are coaxially fixedly connected to the worm gear. The transmission rod (10), short rod, support column (12) and housing are rotatably arranged.

5. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 1, characterized in that, The ejection mechanism includes a fixed block (20) fixed in the forming groove (18). The upper end of the fixed block (20) is fixed with a cylinder (19) that cooperates with the forming groove (18). An annular forming cavity is formed between the cylinder (19) and the forming groove (18). A movable ring (21) is slidably connected in the annular forming cavity. Two vertical rods (22) are fixed at the bottom of the movable ring (21). A circular block (23) located at the bottom of the circular plate (13) is fixed at the bottom of the vertical rods (22). A circular column (24) that cooperates with the circular ring (30) is fixed at the bottom of the circular block (23). A first spring (38) is fixed between the circular block (23) and the fixed block (20).

6. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 1, characterized in that, The pushing mechanism includes a piston cylinder (16) fixed on a bracket (5). The piston cylinder (16) is connected to an air bladder (6) through a conveying pipe (37). A piston (46) is slidably connected inside the piston cylinder (16). A moving rod (45) is fixedly connected to the piston (46). An arc-shaped push block (17) that slides with the upper end of the circular plate (13) is fixed on the moving rod (45).

7. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 6, characterized in that, The stacking mechanism includes a U-shaped plate (11) mounted on a support frame (1). A placement plate (14) opposite to the arc-shaped push block (17) is slidably connected inside the U-shaped plate (11). A screw (25) is fixed to the bottom of the placement plate (14). A threaded cylinder (26) is threaded to the lower end of the screw (25). A hexagonal cylinder (27) is fixed to the bottom of the threaded cylinder (26). A hexagonal prism (39) is slidably connected inside the hexagonal cylinder (27). A transmission wheel (40) is mounted on both the hexagonal prism (39) and the short rod. The two transmission wheels (40) are connected by a belt (28).

8. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 1, characterized in that, The vibration compaction mechanism includes a striking column (36) that slides through the vertical plate (35) and is opposite to the feeding cylinder (2). A positioning block (33) is fixed on the striking column (36). A second spring (41) is fixed between the positioning block (33) and the vertical plate (35). The positioning block (33) is provided with a limiting tooth (34) that can only rotate upward. A drive plate (31) is fixed on the moving plate (43). A drive tooth (32) that cooperates with the limiting tooth (34) is fixed on the drive plate (31).

9. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 1, characterized in that, A scraper (15) is fixed on the support frame (1), and the scraper (15) is slidably abutted against the upper end of the circular plate (13).

10. The expanded polytetrafluoroethylene (ePTFE) gasket processing equipment according to claim 1, characterized in that, The arc-shaped concave surface (42) includes a first arc surface, a first inclined surface, a second arc surface, and a second inclined surface. The first arc surface and the first inclined surface are connected, the first inclined surface and the second arc surface are connected, the second arc surface and the second inclined surface are connected, and the second inclined surface is connected to the upper end surface of the ring (30).

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