Cutting device for polytetrafluoroethylene gasket production

Abstract

The utility model discloses a cutting device for polytetrafluoroethylene gasket production, which comprises a working table, a cutting seat, a cutting assembly and a foot adjusting assembly, the cutting assembly comprises a cutting head positioned vertically above the working table, and the cutting seat moves into a cutting area of the cutting head through a moving assembly. The foot adjusting assembly is used for adjusting the vertical height of the cutting head. During cutting, the pedal plate is loosened, elasticity counteracts a supporting plate through deformation of a first spring and a second spring, the pull rod can push the fixing plate, the cutting head descends at the vertical height, and the polytetrafluoroethylene gasket is cut; and the height of the cutting head is adjusted through the feet, manual operation is not needed, and safety and convenience are improved.

Description

Technical Field

[0001] The utility model relates to a cutting device for producing polytetrafluoroethylene gaskets. Background Art

[0002] Polytetrafluoroethylene is a high molecular polymer made by polymerizing tetrafluoroethylene as a monomer. Its chemical formula is (C2F4) n , excellent in heat and cold resistance, can be used for a long time at -180~260ºC. This material is resistant to acid, alkali and various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene is resistant to high temperatures and has an extremely low friction coefficient.

[0003] At present, polytetrafluoroethylene gaskets are integrally formed after production, and a cutting device is needed to cut them. However, the existing cutting devices all use manual control to raise and lower the cutting head, but at the same time, the placement of the gasket must be taken into account, which makes the operation complicated and prone to accidents. Utility Model Content

[0004] The utility model aims to provide a cutting device for producing polytetrafluoroethylene gaskets to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting device for producing polytetrafluoroethylene gaskets, comprising a workbench, a cutting seat, a cutting assembly and a foot adjustment assembly, wherein the cutting assembly comprises a cutting head located vertically above the workbench, the cutting seat is moved to the cutting area of ​​the cutting head by a moving assembly, and the foot adjustment assembly is used to adjust the vertical height of the cutting head.

[0006] Preferably, the foot adjustment assembly comprises a support plate arranged vertically below the workbench, one end of the support plate is provided with only a foot pedal, and the other end of the support plate is hinged with a pull rod.

[0007] Preferably, the upper surface of the support plate near one end of the foot pedal is connected to the lower surface of the workbench through a first spring, a connecting rod is provided on the upper surface of the support plate near one end of the pull rod, an adjusting plate is provided in the middle of the connecting rod, and a bolt is provided on the top of the connecting rod, and a second spring is provided on the outer sleeve of one end of the connecting rod located between the bolt and the adjusting plate.

[0008] Preferably, a first rotating rod is laterally inserted into one end of the adjustment plate away from the connecting rod, and a second rotating rod is arranged on the support plate and vertically below the first rotating rod.

[0009] Preferably, the cutting assembly further comprises a fixing plate obliquely arranged vertically above the workbench, a third rotating rod is transversely inserted into the fixing plate, and both ends of the third rotating rod are mounted on the workbench.

[0010] Preferably, a motor is provided at the end of the fixed plate, and the power output end of the motor is connected to the power of the cutting head through a transmission belt. The cutting head is arranged at the other end of the fixed plate, and the bottom of the fixed plate away from the cutting head is connected to the pull rod.

[0011] Preferably, the moving assembly includes two bar blocks arranged on the upper surface of the workbench, and the lower surface of the cutting seat is provided with rollers sliding along the length direction of the bar blocks.

[0012] Preferably, a cutting groove is provided on the surface of the cutting seat.

[0013] The technical effects and advantages of the utility model are as follows: the cutting device for producing polytetrafluoroethylene gaskets places the polytetrafluoroethylene gasket to be cut centrally on the surface of the cutting seat, and the staff can step on the foot pedal at this time, and through the rotation of the second rotating rod, one end of the foot pedal moves vertically downward to stretch the first spring, and at the same time, the first rotating rod follows the rotation, and under the pulling of the connecting rod, one end of the adjusting plate drops at the same time, so that the bolt compresses the second spring. At this time, the pull rod can pull the fixed plate, so that the fixed plate drives the cutting wheel to tilt up, and when cutting, the foot pedal is released, and the elastic reaction support plate is supported by the deformation of the first spring and the second spring, so that the pull rod can push the fixed plate, so that the cutting head can drop in the vertical height to cut the polytetrafluoroethylene gasket, and the height of the cutting head can be adjusted by the foot without manual operation, thereby improving safety and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the cutting groove of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the foot adjustment assembly of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the transmission belt of the utility model.

[0018] In the figure: 1. workbench; 2. cutting seat; 3. cutting head; 4. support plate; 5. foot pedal; 6. pull rod; 7. first spring; 8. connecting rod; 9. adjustment plate; 10. second spring; 11. first rotating rod; 12. second rotating rod; 13. fixing plate; 14. third rotating rod; 15. motor; 16. transmission belt; 17. strip block; 18. roller; 19. cutting groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] In order to improve the convenience of cutting PTFE gaskets, refer to Figure 1 , Figure 2 and Figure 3 As shown, it includes a workbench 1, a cutting seat 2, a cutting assembly and a foot adjustment assembly. The cutting assembly includes a cutting head 3 located vertically above the workbench 1. The cutting seat 2 is moved to the cutting area of ​​the cutting head 3 by a moving assembly. The foot adjustment assembly is used to adjust the vertical height of the cutting head 3. The polytetrafluoroethylene gasket to be cut is placed centrally on the surface of the cutting seat 2. At this time, the staff can step on the foot pedal 5. Through the rotation of the third rotating rod 14, one end of the foot pedal 5 moves vertically downward to stretch the first spring 7, and at the same time, the third rotating rod 14 moves downward. The second rotating rod 12 rotates accordingly, and under the pull of the connecting rod 8, one end of the adjusting plate 9 drops at the same time, so that the bolt compresses the second spring 10. At this time, the pull rod 6 can pull the fixed plate 13, allowing the fixed plate 13 to drive the cutting wheel to tilt up. When cutting, release the foot pedal 5, and the first spring 7 and the second spring 10 are deformed to support the elastic reaction plate 4, so that the pull rod 6 can push the fixed plate 13, allowing the cutting head 3 to drop in the vertical height and cut the polytetrafluoroethylene gasket. The height of the cutting head 3 can be adjusted by the foot without manual operation.

[0021] In order to facilitate the cutting of PTFE gaskets, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the foot adjustment assembly includes a support plate 4 arranged vertically below the workbench 1, one end of the support plate 4 is provided with a foot pedal 5, and the other end of the support plate 4 is hinged with a pull rod 6. The pull of the pull rod 6 drives the fixing plate 13 to pry, so that the cutting head 3 can be adjusted in vertical height. The upper surface of the support plate 4 near the foot pedal 5 is connected to the lower surface of the workbench 1 through a first spring 7, and the upper surface of the support plate 4 near the pull rod 6 is provided with a connecting rod 8, an adjustment plate 9 is provided in the middle of the connecting rod 8, and a bolt is provided on the top of the connecting rod 8. The outer sleeve of the end of the connecting rod 8 between the bolt and the adjustment plate 9 is provided with a second spring 10. When the foot pedal 5 moves vertically downward, the first spring 7 will be stretched. When the foot pedal 5 is released, the first spring 7 will shrink, and the elasticity will make one end of the foot pedal 5 return to its original position. When one end of the foot pedal 5 descends, the connecting rod 8 follows and descends, so that the bolt compresses the second spring 10. At this time, the first rotating rod 11 and the second rotating rod 12 rotate in coordination, thereby generating a force to pull the pull rod 6, which facilitates the precise control of the pulling and pushing of the pull rod 6. The first rotating rod 11 is transversely inserted into the end of the adjustment plate 9 away from the connecting rod 8, and the second rotating rod 12 is arranged on the support plate 4 and vertically below the first rotating rod 11. The rotation of the first rotating rod 11 and the second rotating rod 12 facilitates the rotation of the pull rod 6. The cutting assembly also includes a fixed plate 13 obliquely arranged vertically above the workbench 1, and a third rotating rod 14 is transversely inserted in the fixed plate 13. Both ends of the third rotating rod 14 are installed on the workbench 1. By pulling the pull rod 6, the third rotating rod 14 can drive the fixed plate 13 to deflect with the third rotating rod 14 as the center of rotation. A motor 15 is provided at the end of the fixed plate 13, and the power output end of the motor 15 is connected to the cutting head 3 through a transmission belt 16. The cutting head 3 is provided at the other end of the fixed plate 13. The bottom of the fixed plate 13 away from the cutting head 3 is connected to the pull rod 6. A coupling is provided on one side of the cutting head 3, and the cutting head 3 is connected to the transmission belt 16 through the coupling. The moving assembly includes two strip blocks 17 provided on the upper surface of the workbench 1, and the lower surface of the cutting seat 2 is provided with a roller 18 sliding along the length direction of the strip block 17. The strip block 17 is in a shape suitable for the roller 18, so that the roller 18 can slide on the strip block 17, thereby driving the movement of the cutting seat 2. A cutting groove 19 is provided on the surface of the cutting seat 2, and the cutting groove 19 is used to facilitate cutting of the polytetrafluoroethylene gasket.

[0022] When in use, first place the polytetrafluoroethylene gasket to be cut in the center on the surface of the cutting seat 2. At this time, the staff can step on the foot pedal 5. Through the rotation of the second rotating rod 12, one end of the foot pedal 5 moves vertically downward to stretch the first spring 7, and at the same time, the first rotating rod 11 follows the rotation. Under the pulling of the connecting rod 8, one end of the adjusting plate 9 drops at the same time, so that the bolt compresses the second spring 10. At this time, the pull rod 6 can pull the fixed plate 13 to allow the third rotating rod 14 to rotate, so that the fixed plate 13 drives the cutting wheel to tilt up. When cutting, release the foot pedal 5, and through the deformation of the first spring 7 and the second spring 10, the elastic reaction support plate 4 can be supported, so that the pull rod 6 can push the fixed plate 13, so that the cutting head 3 can be lowered in the vertical height to cut the polytetrafluoroethylene gasket.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A cutting device for producing polytetrafluoroethylene gaskets, characterized in that: The invention comprises a workbench (1), a cutting seat (2), a cutting assembly and a foot adjustment assembly, wherein the cutting assembly comprises a cutting head (3) located vertically above the workbench (1), the cutting seat (2) is moved into a cutting area of ​​the cutting head (3) by a moving assembly, and the foot adjustment assembly is used to adjust the vertical height of the cutting head (3).

2. A cutting device for producing polytetrafluoroethylene gaskets according to claim 1, characterized in that: The foot adjustment assembly comprises a support plate (4) arranged vertically below the workbench (1); one end of the support plate (4) is provided with a foot pedal (5); and the other end of the support plate (4) is hinged with a pull rod (6).

3. A cutting device for producing polytetrafluoroethylene gaskets according to claim 2, characterized in that: The upper surface of the support plate (4) at one end close to the foot pedal (5) is connected to the lower surface of the workbench (1) via a first spring (7); a connecting rod (8) is provided on the upper surface of the support plate (4) at one end close to the pull rod (6); an adjusting plate (9) is provided in the middle of the connecting rod (8); a bolt is provided at the top of the connecting rod (8); and a second spring (10) is sleeved on the outside of one end of the connecting rod (8) between the bolt and the adjusting plate (9).

4. A cutting device for producing polytetrafluoroethylene gaskets according to claim 3, characterized in that: A first rotating rod (11) is laterally inserted into one end of the adjustment plate (9) away from the connecting rod (8), and a second rotating rod (12) is arranged on the support plate (4) and vertically below the first rotating rod (11).

5. A cutting device for producing polytetrafluoroethylene gaskets according to claim 4, characterized in that: The cutting assembly further comprises a fixing plate (13) obliquely arranged vertically above the workbench (1), a third rotating rod (14) being laterally inserted into the fixing plate (13), and both ends of the third rotating rod (14) being mounted on the workbench (1).

6. A cutting device for producing polytetrafluoroethylene gaskets according to claim 5, characterized in that: A motor (15) is provided at the end of the fixing plate (13); a power output end of the motor (15) is connected to the power of the cutting head (3) via a transmission belt (16); the cutting head (3) is provided at the other end of the fixing plate (13); and the bottom of one end of the fixing plate (13) away from the cutting head (3) is connected to a pull rod (6).

7. A cutting device for producing polytetrafluoroethylene gaskets according to claim 1, characterized in that: The moving assembly comprises two strip blocks (17) arranged on the upper surface of the workbench (1), and the lower surface of the cutting seat (2) is provided with rollers (18) sliding along the length direction of the strip blocks (17).

8. The cutting device for producing polytetrafluoroethylene gaskets according to claim 1, characterized in that: A cutting groove (19) is provided on the surface of the cutting seat (2).

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