Extrusion device for multi-cavity polytetrafluoroethylene tube production line

Abstract

The utility model provides an extrusion device for a multi-cavity polytetrafluoroethylene tube production line, which relates to the technical field of extrusion devices and comprises a machine body, a heating stretching bin is arranged at the top end of the machine body, a feeding cylinder is arranged on one side of the top end of the heating stretching bin, and a multi-cavity extrusion die is arranged at one end, far away from the feeding cylinder, of the heating stretching bin. A control table is arranged on one side of the machine body, a supporting device is installed at the end, close to the multi-cavity extrusion die, of the outer surface of the machine body through an auxiliary device, and the auxiliary device and the supporting device are located below the multi-cavity extrusion die. The supporting block at the top end of the rectangular rod can support a pipe body at the output end of the multi-cavity extrusion die to avoid deformation of the pipe body after output as much as possible, and the sliding rod can be controlled to slide on the inner wall of the groove rod by pushing the sliding rod to adjust the position according to the output length of the pipe body. And when the extrusion device is not used, the sliding rod is stored in the groove rod, so that the occupied space is reduced, and the use convenience of the extrusion device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion devices, in particular to an extrusion device for a multi-cavity polytetrafluoroethylene tube production line. Background Art

[0002] Multi-cavity polytetrafluoroethylene tube is a special polymer material pipe. During production, pure polytetrafluoroethylene raw material is added into the inside of the extrusion equipment, and the multi-cavity polytetrafluoroethylene tube is formed through heating, stretching and cooling processes inside the extrusion equipment.

[0003] When producing multi-cavity polytetrafluoroethylene tubes through an extruder, a bracket to support the output of the pipe is usually placed at one end of the output port of the extrusion equipment to prevent the angle of the pipe from deviating and falling during output. However, due to the different extrusion length requirements for different types of pipes during pipe production, different support frames need to be replaced when supporting the pipes, resulting in reduced convenience when using the extrusion device. Utility Model Content

[0004] The utility model aims to solve the problem that different types of pipes have different extrusion length requirements when producing pipes, and different support frames need to be replaced when supporting the pipes, resulting in reduced convenience when using the extrusion device. A multi-cavity polytetrafluoroethylene pipe production line extrusion device is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-cavity polytetrafluoroethylene tube production line extrusion device, including a machine body, a heating and stretching chamber is arranged at the top of the machine body, a feeding barrel is arranged on one side of the top of the heating and stretching chamber, a multi-cavity extrusion die is arranged at the end of the heating and stretching chamber away from the feeding barrel, a control console is arranged on one side of the machine body, and a supporting device is installed at one end of the outer surface of the machine body close to the multi-cavity extrusion die with the aid of an auxiliary device, the auxiliary device and the supporting device are located below the multi-cavity extrusion die, and the supporting device can support the bottom of the tube extruded through the multi-cavity extrusion die after processing.

[0006] The effect achieved by the above components is: when using an extrusion device to produce a multi-cavity polytetrafluoroethylene tube, the supporting device is installed on one side of the machine body through an auxiliary device, the raw material is added to the inside of the feed barrel, and the operating parameters of the machine body are adjusted through the control console on one side of the machine body, so that the raw material enters the interior of the heating and stretching chamber for processing. After the processing is completed, it is extruded into a tube shape through a multi-cavity extrusion die. After the tube body is output, it is supported by the supporting device to ensure as much as possible that the tube body will not tilt or deform during output and movement.

[0007] Preferably, the supporting device includes a slot rod, the inner wall of the slot rod is slidably connected to a sliding rod, one side of the sliding rod is fixedly connected to an auxiliary rod, the top of the sliding rod is fixedly connected to a threaded cylinder, the inner wall of the threaded cylinder is threadedly connected to a first screw, the top of the first screw is rotatably connected to a rectangular rod, the top of the rectangular rod is fixedly connected to a plurality of support blocks, the bottom end of the rectangular rod is fixedly connected to a telescopic rod, a sliding groove is provided at the top of the slot rod, the bottom end of the telescopic rod slides on the inner wall of the sliding groove, and the bottom end of the telescopic rod is fixedly connected to one side of the top of the sliding rod.

[0008] The effect achieved by the above-mentioned components is: by setting the support block, when using the extrusion device, the supporting device can be installed on one end of the heating and stretching chamber under the multi-cavity extrusion mold with the help of an auxiliary device, and rotating the first screw can control the first screw to move up and down on the inner wall of the threaded barrel to drive the telescopic rod to telescope and adjust the height position of the rectangular rod, and the support block at the top of the rectangular rod can support the bottom of the tube extruded by the multi-cavity extrusion mold, and holding the auxiliary rod to push or pull the sliding rod can control the sliding rod to slide on the inner wall of the groove rod and the bottom end of the telescopic rod to slide on the inner wall of the slide groove to adjust the distance between the sliding rod and the machine body for easy use, thereby improving the flexibility and convenience when using the extrusion device.

[0009] Preferably, a rectangular frame is fixedly connected to the bottom end of the telescopic rod, and the inner wall of the rectangular frame slides on the outer surface of the slot rod.

[0010] The effect achieved by the above-mentioned components is: when the sliding rod is pushed to slide on the inner wall of the slot rod, the rectangular frame will slide on the outer surface of the slot rod. The rectangular frame can further limit the angle between the end of the sliding rod away from the slot rod and the end located inside the slot rod, thereby avoiding the sliding rod from tilting and falling at the angle away from the end of the slot rod as much as possible.

[0011] Preferably, a disc is fixedly connected to the bottom end of the first screw rod, and a grip rod is rotatably connected to the bottom end of the disc.

[0012] The effect achieved by the above components is that holding the outer surface of the gripping rod at the bottom end of the disc and pushing the disc to rotate can more conveniently control the rotation of the first screw to adjust the height position of the rectangular rod and the supporting block at the top end of the rectangular rod.

[0013] Preferably, a positioning component for fixing the moving position of the sliding rod is provided on one side of the sliding rod, and the positioning component includes a second screw rod, one end of the second screw rod is fixedly connected to one side of the sliding rod, the outer surface of the second screw rod is slidably connected to a U-shaped block, the outer surface of the second screw rod is threadedly connected to a threaded ring, the U-shaped block is located between the sliding rod and the threaded ring, the outer surface of the threaded ring is provided with a plurality of protrusions, a rectangular groove is opened on one side of the groove rod, and the outer surface of the second screw rod slides on the inner wall of the rectangular groove.

[0014] The effect achieved by the above components is: when the sliding rod is pushed to control the sliding rod to slide on the inner wall of the groove rod to adjust the distance between the sliding rod and the machine body, the second screw rod will slide on the inner wall of the rectangular groove, and the threaded ring is rotated by holding the protrusion on the outer surface of the threaded ring to move the threaded ring on the outer surface of the second screw rod, pushing the U-shaped block to slide on the outer surface of the second screw, and pressing one side of the U-shaped block against the outer surface of the groove rod to fix the position of the sliding rod inside the groove rod.

[0015] Preferably, one end of the second screw is fixedly connected to an elastic rope, and one end of the elastic rope away from the second screw is fixedly connected to one side of the threaded ring.

[0016] The effect achieved by the above components is: when the threaded ring rotates outward on the outer surface of the second screw, if it detaches from the surface of the second screw, the threaded ring can be fixed to the outside of the second screw through the elastic rope, thereby preventing the threaded ring from falling off and being lost, affecting the normal use of the positioning assembly.

[0017] Preferably, the auxiliary device includes a rectangular block, one side of which is fixedly connected to two clamping blocks, the outer surface of the rectangular block is provided with a plurality of through holes, the inner walls of the through holes are slidably inserted with bolts, one side of the body is provided with a plurality of threaded holes, the outer surfaces of the bolts are threadedly connected to the inner walls of the threaded holes, and one side of the body is provided with two clamping grooves.

[0018] The effect achieved by the above components is: insert the two clamping blocks on one side of the rectangular block into the two clamping grooves on one side of the body so that the rectangular block fits on one side of the body, and then use bolts to pass through the through holes on the outer surface of the rectangular block and insert them into the threaded holes. Turn the bolts to thread the bolts with the inner walls of the threaded holes so that the rectangular block and the supporting device can be installed on one side of the body. Remove the bolts and then pull out the clamping blocks on one side of the rectangular block so that the rectangular block and the supporting device can be removed.

[0019] Preferably, a rectangular plate is fixedly connected to one side of the outer surface of the body close to the card slots, and the rectangular plate is located below the two card slots.

[0020] The effect achieved by the above components is that when the two card blocks on one side of the rectangular block are inserted into the card slot, the bottom end of the rectangular block can be placed on the surface of the rectangular plate to support the bottom of the rectangular block, making it easy to use bolts to pass through the rectangular block and connect it to the body.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, by setting a supporting device, the support block at the top of the rectangular rod can support the tube body at the output end of the multi-cavity extrusion die to avoid deformation of the tube body after output as much as possible, and pushing the sliding rod can control the sliding rod to slide on the inner wall of the groove rod to adjust the position according to the output length of the tube body, and when the extrusion device is not in use, the sliding rod can be retracted into the interior of the groove rod to reduce the occupied space, thereby improving the convenience of using the extrusion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the body of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the slot rod of the utility model;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the sliding rod of the utility model;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the rectangular plate of the utility model.

[0028] Legend: 1. Machine body; 2. Support device; 3. Auxiliary device; 4. Feed barrel; 5. Heating and stretching chamber; 6. Multi-cavity extrusion mold; 7. Control console; 21. Slot rod; 22. Sliding rod; 23. Threaded barrel; 24. First screw; 25. Rectangular rod; 26. Telescopic rod; 27. Slide groove; 28. Support block; 29. ​​Positioning assembly; 291. Rectangular groove; 292. Second screw; 293. U-shaped block; 294. Threaded ring; 295. Protrusion; 296. Elastic rope; 210. Auxiliary rod; 211. Rectangular frame; 212. Disc; 31. Rectangular block; 32. Through hole; 33. Block; 34. Slot; 35. Bolt; 36. Threaded hole; 37. Rectangular plate. DETAILED DESCRIPTION

[0029] Embodiment 1, as Figure 1-4As shown, the extrusion device of the multi-cavity polytetrafluoroethylene tube production line includes a body 1, a heating and stretching bin 5 is arranged at the top of the body 1, a feeding barrel 4 is arranged at one side of the top of the heating and stretching bin 5, a multi-cavity extrusion die 6 is arranged at the end of the heating and stretching bin 5 away from the feeding barrel 4, a control console 7 is arranged on one side of the body 1, and a supporting device 2 is installed at one end of the outer surface of the body 1 close to the multi-cavity extrusion die 6 with the help of an auxiliary device 3, the auxiliary device 3 and the supporting device 2 are located below the multi-cavity extrusion die 6, and the supporting device 2 can support the bottom of the tube extruded through the multi-cavity extrusion die 6 after processing. When the extrusion device is used to produce multi-cavity polytetrafluoroethylene tubes, the supporting device 2 is installed on one side of the body 1 through the auxiliary device 3, and the raw material is added into the inside of the feeding barrel 4. The operating parameters of the body 1 are adjusted through the control console 7 on one side of the body 1, so that the raw material enters the inside of the heating and stretching bin 5 for processing. After the processing is completed, it is extruded into a tube shape through the multi-cavity extrusion die 6. After the tube body is output, it is supported by the supporting device 2 to ensure as much as possible that the tube body will not tilt and deform when it is output and moved.

[0030] Reference Figure 2-4 As shown, in this embodiment: the supporting device 2 includes a slot rod 21, the inner wall of the slot rod 21 is slidably connected with a sliding rod 22, one side of the sliding rod 22 is fixedly connected with an auxiliary rod 210, the top of the sliding rod 22 is fixedly connected with a threaded cylinder 23, the inner wall of the threaded cylinder 23 is threadedly connected with a first screw rod 24, the top of the first screw rod 24 is rotatably connected with a rectangular rod 25, the top of the rectangular rod 25 is fixedly connected with a plurality of supporting blocks 28, and one side of the bottom end of the rectangular rod 25 is fixedly connected with a telescopic rod 26, the top of the slot rod 21 is provided with a sliding groove 27, the bottom end of the telescopic rod 26 slides on the inner wall of the sliding groove 27, and the bottom end of the telescopic rod 26 is fixedly connected to one side of the top end of the sliding rod 22. By setting the supporting block 28, when using the extrusion device, the supporting device 2 can be installed at one end of the heating and stretching chamber 5 below the multi-cavity extrusion mold 6 with the help of the auxiliary device 3, and the first screw 24 can be rotated to control the first screw 2 The inner wall of the threaded cylinder 23 moves up and down to drive the telescopic rod 26 to telescope and adjust the height position of the rectangular rod 25. The support block 28 at the top of the rectangular rod 25 can support the bottom of the tube extruded by the multi-cavity extrusion mold 6. Holding the auxiliary rod 210, pushing or pulling the sliding rod 22 can control the sliding rod 22 to slide on the inner wall of the groove rod 21, and the bottom end of the telescopic rod 26 slides on the inner wall of the slide groove 27 to adjust the distance between the sliding rod 22 and the machine body 1 for easy use. By setting the supporting device 2, the support block 28 at the top of the rectangular rod 25 can support the output end tube body of the multi-cavity extrusion mold 6 to avoid deformation of the tube body after output as much as possible. Pushing the sliding rod 22 can control the sliding rod 22 to slide on the inner wall of the groove rod 21 to adjust the position according to the output length of the tube body, and when the extrusion device is not in use, the sliding rod 22 is put into the inner wall of the groove rod 21 to reduce the occupied space, thereby improving the convenience of using the extrusion device.

[0031] Reference Figure 2-4 As shown, in this embodiment: the bottom end of the telescopic rod 26 is fixedly connected with a rectangular frame 211, and the inner wall of the rectangular frame 211 slides on the outer surface of the slot rod 21. When the sliding rod 22 is pushed to slide on the inner wall of the slot rod 21, the rectangular frame 211 will slide on the outer surface of the slot rod 21, and the angle between the end of the sliding rod 22 away from the slot rod 21 and the end located inside the slot rod 21 can be further limited by the rectangular frame 211, so as to avoid the sliding rod 22 away from the end of the slot rod 21 from deflecting and falling as much as possible. The bottom end of the first screw rod 24 is fixedly connected with a disc 212, and the bottom end of the disc 212 is rotatably connected with a grip rod. Holding the outer surface of the grip rod at the bottom end of the disc 212 and pushing the disc 212 to rotate can more conveniently control the first screw 24 to rotate and adjust the height position of the rectangular rod 25 and the top support block 28 of the rectangular rod 25.

[0032] Reference Figure 2-4 As shown, in this embodiment: a positioning assembly 29 for fixing the moving position of the sliding rod 22 is provided on one side of the sliding rod 22, and the positioning assembly 29 includes a second screw rod 292, one end of the second screw rod 292 is fixedly connected to one side of the sliding rod 22, and a U-shaped block 293 is slidably connected to the outer surface of the second screw rod 292, and a threaded ring 294 is threadedly connected to the outer surface of the second screw rod 292, and the U-shaped block 293 is located between the sliding rod 22 and the threaded ring 294, and a plurality of protrusions 295 are provided on the outer surface of the threaded ring 294, and a rectangular groove 291 is provided on one side of the groove rod 21, and the outer surface of the second screw rod 292 slides on the inner wall of the rectangular groove 291, and when the sliding rod 22 is pushed to control the sliding rod 22 to slide on the inner wall of the groove rod 21 to adjust the distance between the sliding rod 22 and the machine body 1, the second screw rod 292 will be in the rectangular groove 291 The inner wall of the second screw rod 292 is slidable, and the threaded ring 294 is held at the protrusion 295 on the outer surface of the threaded ring 294 and rotated to make the threaded ring 294 move on the outer surface of the second screw rod 292, pushing the U-shaped block 293 to slide on the outer surface of the second screw rod 292. Pressing one side of the U-shaped block 293 against the outer surface of the slot rod 21 can fix the position of the sliding rod 22 inside the slot rod 21. One end of the second screw rod 292 is fixedly connected to an elastic rope 296, and the end of the elastic rope 296 away from the second screw rod 292 is fixedly connected to one side of the threaded ring 294. When the threaded ring 294 is rotated outward on the outer surface of the second screw rod 292, if it is separated from the surface of the second screw rod 292, the threaded ring 294 can be fixed to the outside of the second screw rod 292 through the elastic rope 296, so as to avoid the threaded ring 294 from falling off and being lost, which affects the normal use of the positioning assembly 29.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, in this embodiment: the auxiliary device 3 includes a rectangular block 31, one side of the rectangular block 31 is fixedly connected with two clamping blocks 33, the outer surface of the rectangular block 31 is provided with a plurality of through holes 32, the inner wall of the through hole 32 is slidably inserted with a bolt 35, one side of the body 1 is provided with a plurality of threaded holes 36, the outer surface of the bolt 35 is threadedly connected with the inner wall of the threaded hole 36, and one side of the body 1 is provided with two clamping grooves 34, the two clamping blocks 33 on one side of the rectangular block 31 are inserted into the two clamping grooves 34 on one side of the body 1 so that the rectangular block 31 is attached to one side of the body 1, and then the bolt 35 is inserted through the through hole 32 on the outer surface of the rectangular block 31 and inserted into the threaded hole 36, and then the bolt 35 is rotated. The movable bolt 35 can be threadedly connected with the inner wall of the threaded hole 36 to install the rectangular block 31 and the supporting device 2 on one side of the body 1. The rectangular block 31 and the supporting device 2 can be removed by removing the bolt 35 and then pulling out the block 33 on one side of the rectangular block 31. A rectangular plate 37 is fixedly connected to one side of the outer surface of the body 1 close to the slot 34. The rectangular plate 37 is located below the two slots 34. When the two blocks 33 on one side of the rectangular block 31 are inserted into the slots 34, the bottom end of the rectangular block 31 can be placed on the surface of the rectangular plate 37 to support the bottom of the rectangular block 31, so as to facilitate the use of the bolt 35 to pass through the rectangular block 31 and connect it to the body 1.

[0034] Working principle: When using an extrusion device to produce a multi-cavity polytetrafluoroethylene tube, the two blocks 33 on one side of the rectangular block 31 can be first inserted into the two slots 34 on one side of the body 1 to make the rectangular block 31 fit on one side of the body 1, and then the bolt 35 is passed through the through hole 32 on the outer surface of the rectangular block 31 and inserted into the threaded hole 36, and the bolt 35 is turned to thread the bolt 35 with the inner wall of the threaded hole 36 to install the rectangular block 31 and the supporting device 2 on one side of the body 1, and the auxiliary rod 210 is pushed to control the sliding rod 22 to slide on the inner wall of the groove rod 21 to adjust the horizontal position of the sliding rod 22, and then the threaded ring 294 is rotated to make the threaded ring 294 move on the outer surface of the second screw rod 292 to press the U-shaped block 293 against the outer surface of the groove rod 21 to fix the position of the sliding rod 22, and then The first screw 24 is rotated to control the rectangular rod 25 to move up and down to adjust the height position of the rectangular rod 25 and the support block 28 and fix them. After the adjustment is completed, the polytetrafluoroethylene raw material is added to the inside of the feed barrel 4, and the operating parameters of the body 1 are adjusted through the control console 7 on one side of the body 1, so that the motor at the top of the body 1 is operated to send the raw material inside the feed barrel 4 into the heating and stretching bin 5, and the raw material inside is heated and stretched by the heating device on one side of the heating and stretching bin 5. Before being output through the multi-cavity extrusion die 6, the tube body is cooled by the cooling device inside the heating and stretching bin 5. After the tube body is output through the multi-cavity extrusion die 6, it will move on the surface of the support block 28 at the top of the rectangular rod 25, and the tube body is supported by the rectangular rod 25 and the support block 28 to ensure that the tube body will not be deformed after being output.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A multi-cavity polytetrafluoroethylene tube production line extrusion device, comprising a body (1), characterized in that: A heating and stretching chamber (5) is arranged at the top of the machine body (1), a feeding cylinder (4) is arranged on one side of the top of the heating and stretching chamber (5), a multi-cavity extrusion die (6) is arranged at the end of the heating and stretching chamber (5) away from the feeding cylinder (4), a control console (7) is arranged on one side of the machine body (1), and a supporting device (2) is installed on the end of the outer surface of the machine body (1) close to the multi-cavity extrusion die (6) with the aid of an auxiliary device (3), and the supporting device (2) can support the bottom of the tube extruded through the multi-cavity extrusion die (6) after processing.

2. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 1, characterized in that: The supporting device (2) comprises a slot rod (21), the inner wall of the slot rod (21) is slidably connected with a sliding rod (22), one side of the sliding rod (22) is fixedly connected with an auxiliary rod (210), the top end of the sliding rod (22) is fixedly connected with a threaded cylinder (23), the inner wall of the threaded cylinder (23) is threadedly connected with a first screw rod (24), the top end of the first screw rod (24) is rotatably connected with a rectangular rod (25), the top end of the rectangular rod (25) is fixedly connected with a plurality of supporting blocks (28), one side of the bottom end of the rectangular rod (25) is fixedly connected with a telescopic rod (26), the top end of the slot rod (21) is provided with a sliding groove (27), the bottom end of the telescopic rod (26) slides on the inner wall of the sliding groove (27), and the bottom end of the telescopic rod (26) is fixedly connected to one side of the top end of the sliding rod (22).

3. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 2, characterized in that: The bottom end of the telescopic rod (26) is fixedly connected to a rectangular frame (211), and the inner wall of the rectangular frame (211) slides on the outer surface of the slot rod (21).

4. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 3, characterized in that: The bottom end of the first screw rod (24) is fixedly connected to a disc (212), and the bottom end of the disc (212) is rotatably connected to a gripping rod.

5. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 4, characterized in that: A positioning component (29) capable of fixing the moving position of the sliding rod (22) is provided on one side of the sliding rod (22).

6. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 5, characterized in that: The positioning assembly (29) comprises a second screw rod (292), one end of which is fixedly connected to one side of the sliding rod (22), the outer surface of the second screw rod (292) is slidably connected to a U-shaped block (293), the outer surface of the second screw rod (292) is threadedly connected to a threaded ring (294), the U-shaped block (293) is located between the sliding rod (22) and the threaded ring (294), the outer surface of the threaded ring (294) is provided with a plurality of protrusions (295), a rectangular groove (291) is provided on one side of the groove rod (21), and the outer surface of the second screw rod (292) slides on the inner wall of the rectangular groove (291).

7. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 6, characterized in that: One end of the second screw rod (292) is fixedly connected to an elastic rope (296), and one end of the elastic rope (296) away from the second screw rod (292) is fixedly connected to one side of the threaded ring (294).

8. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 7, characterized in that: The auxiliary device (3) comprises a rectangular block (31), one side of the rectangular block (31) is fixedly connected to two clamping blocks (33), the outer surface of the rectangular block (31) is provided with a plurality of through holes (32), the inner walls of the through holes (32) are slidably inserted with bolts (35), one side of the machine body (1) is provided with a plurality of threaded holes (36), the outer surfaces of the bolts (35) are threadedly connected to the inner walls of the threaded holes (36), and one side of the machine body (1) is provided with two clamping grooves (34).

9. The multi-cavity polytetrafluoroethylene tube production line extrusion device according to claim 8, characterized in that: A rectangular plate (37) is fixedly connected to one side of the outer surface of the body (1) close to the card slots (34), and the rectangular plate (37) is located below the two card slots (34).

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