PTFE (Polytetrafluoroethylene) short fiber drafting device

Abstract

The utility model relates to the technical field of drafting devices, and discloses a PTFE short fiber drafting device which comprises a first vertical plate, a second vertical plate and a PTFE short fiber processed product, and a first roller, a first drafting compression roller, a second drafting compression roller and a second roller are arranged between the first vertical plate and the second vertical plate. And pressing wheel assemblies are arranged above the first roller and the second roller correspondingly, sliding grooves are formed in the side wall faces, close to each other, of the first vertical plate and the second vertical plate correspondingly, sliding plates are movably clamped in the sliding grooves, and driving units are arranged in the sliding grooves. A first roller, a first drafting compression roller, a second drafting compression roller and a second roller are arranged between a first vertical plate and a second vertical plate to form a structure for flattening and smoothing PTFE short fiber processed products, a sliding plate can be moved by arranging a driving unit, and the second roller and the second drafting compression roller are movably arranged on the sliding plate. And the sliding plate moves to drive the second roller and the second drafting compression roller to synchronously move so as to realize drafting of the PTFE short fibers, so that the production requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of drafting devices, in particular to a PTFE staple fiber drafting device. Background Art

[0002] PTFE, short for polytetrafluoroethylene, is a plastic with excellent chemical resistance and high temperature stability.

[0003] During the production and preparation process of PTFE staple fibers, they are stretched reasonably through a drawing device to change their physical structure, thereby changing the mechanical properties, dimensional stability and other characteristics of the PTFE staple fibers, making them more suitable for specific application scenarios. Different drawing forces are required according to different usage scenarios. The existing devices are not convenient for adjustment during the production process, resulting in excessive waste of raw materials during the debugging process.

[0004] Therefore, those skilled in the art provide a PTFE staple fiber drawing device to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a PTFE staple fiber drafting device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PTFE staple fiber stretching device, comprising a first vertical plate, a second vertical plate and a PTFE staple fiber processed product, a first roller, a first stretching pressure roller, a second stretching pressure roller and a second roller are arranged between the first vertical plate and the second vertical plate, a pressure wheel assembly is arranged above the first roller and the second roller, the pressure wheel assembly comprises a first pressure roller, a second pressure roller and a pneumatic push rod, the first stretching pressure roller and the second stretching pressure roller are located on the same horizontal plane, the first roller and the second roller are located on the same horizontal plane, a first drive motor is arranged at one end of the first roller, a second drive motor is arranged at one end of the second roller, a slide groove is opened on the side wall surface where the first vertical plate and the second vertical plate are close to each other, a slide plate is movably engaged in the slide groove, a drive unit for moving the slide plate is arranged in the slide groove, and the drive unit comprises a servo motor and a threaded rod.

[0007] Preferably, one end of the first roller is movably mounted on a side wall of the second vertical plate through a bearing, the first drive motor is fixedly mounted on a side wall of the first vertical plate away from the second vertical plate, and the other end of the first roller movably passes through the first vertical plate and is fixedly connected to the output shaft of the first drive motor.

[0008] Preferably, one end of the second roller is movably mounted on the outer wall of the skateboard on one side of the second vertical plate through a bearing, a rectangular groove is penetrated on one side wall of the first vertical plate, the support plate is fixedly mounted on one side wall of the skateboard, the support plate is located in the rectangular groove, the second drive motor is fixed on the support plate, and the other end of the second roller movably penetrates the skateboard on one side of the first vertical plate and is fixedly connected to the output shaft of the second drive motor.

[0009] Preferably, both ends of the first stretching roller are movably mounted between the first vertical plate and the second vertical plate via bearings, and both ends of the second stretching roller are movably mounted between the two slide plates via bearings.

[0010] Preferably, both ends of the first pressing roller and the second pressing roller are provided with a rectangular plate, the rectangular plate is L-shaped, the first pressing roller, the second pressing roller and the rectangular plate are movably connected, a protrusion is fixedly connected to the inner wall of the rectangular plate, the telescopic end of the pneumatic push rod is fixedly connected to the corresponding rectangular plate, the pneumatic push rods on both sides of the first pressing roller are respectively fixedly installed on the top of the first vertical plate and the second vertical plate, the pneumatic push rods on both sides of the second pressing roller are respectively fixedly installed on the top of the slide plate, the first vertical plate, the second vertical plate and the slide plate are provided with limiting grooves at the positions corresponding to the protrusions, and the protrusions are movably engaged in the corresponding limiting grooves.

[0011] Preferably, the right ends of the first vertical plate and the second vertical plate are fixedly installed with servo motors, one end of the threaded rod is movably installed on one side wall of the slide groove through a bearing, and the other end of the threaded rod movably passes through the slide groove and is fixedly connected to the corresponding servo motor output shaft.

[0012] Preferably, the threaded rod movably passes through the corresponding slide plate, and a guide rod is fixedly installed in the slide groove, the guide rod movably passes through the corresponding slide plate, and the guide rod is located on the sides of the first vertical plate and the second vertical plate.

[0013] The utility model provides a PTFE staple fiber drafting device, which has the following beneficial effects:

[0014] (1) This PTFE staple fiber stretching device comprises a first roller, a first stretching roller, a second stretching roller and a second roller arranged between a first vertical plate and a second vertical plate to form a structure for flattening and smoothing the PTFE staple fiber processed product. The slide plate can be moved by arranging a driving unit. The second roller and the second stretching roller are movably arranged on the slide plate. The movement of the slide plate drives the second roller and the second stretching roller to move synchronously to achieve the stretching of the PTFE staple fiber, thereby meeting the production needs and saving the raw materials used in the debugging process.

[0015] (2) A PTFE staple fiber stretching device, wherein both ends of a first stretching roller are movably mounted between a first vertical plate and a second vertical plate through bearings, and both ends of a second stretching roller are movably mounted between two slide plates through bearings. The first stretching roller and the second stretching roller are arranged to change the movement direction of the PTFE staple fiber processed product. A pressure wheel assembly is arranged directly above the first roller and the second roller. The pneumatic push rod controls the height of the rectangular plate to rise and fall during operation, and the rectangular plate drives the corresponding first pressure roller or the second pressure roller to rise and fall synchronously. The first pressure roller is close to the PTFE staple fiber processed product to press and smooth the PTFE staple fiber processed product.

[0016] (3) The PTFE staple fiber stretching device is fixedly installed on the right side of the first vertical plate and the second vertical plate by setting a servo motor. The servo motor drives the corresponding threaded rod to rotate during operation. The threaded rod movably penetrates the slide plate to drive the slide plate to move. A guide rod is set in the slide groove to limit the movement of the slide plate. The movement of the slide plate drives the second roller and the second stretching roller to move as a whole, thereby realizing the stretching of the PTFE staple fiber processed product. The adjustment accuracy is higher by adopting the driving method of the servo motor and the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a PTFE staple fiber drafting device of the utility model;

[0018] Figure 2 It is a right side schematic diagram of a PTFE staple fiber drafting device of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection relationship between the first roller, the first drafting roller, the second roller, and the second drafting roller and the pressure wheel assembly of a PTFE staple fiber drafting device of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection relationship between the first roller and the first driving motor of a PTFE staple fiber drafting device of the utility model;

[0021] Figure 5 It is a top view schematic diagram of a PTFE staple fiber drawing device of the utility model.

[0022] Legend:

[0023] 10. First vertical plate; 11. Second vertical plate; 12. PTFE staple processed product; 13. First roller; 14. First drive motor; 15. Rectangular groove; 17. Servo motor; 18. First pressure roller; 19. Second pressure roller; 20. Rectangular plate; 21. Protrusion; 22. Pneumatic push rod; 25. First stretching pressure roller; 26. Second stretching pressure roller; 27. Second drive motor; 28. Slide plate; 29. ​​Support plate; 30. Slide groove; 31. Threaded rod; 32. Guide rod; 33. Second roller. DETAILED DESCRIPTION

[0024] like Figure 1-5 As shown: a PTFE staple fiber drafting device, comprising a first vertical plate 10, a second vertical plate 11 and a PTFE staple fiber processed product 12, a first roller 13, a first drafting roller 25, a second drafting roller 26 and a second roller 33 are arranged between the first vertical plate 10 and the second vertical plate 11, and a pressure wheel assembly is arranged above the first roller 13 and the second roller 33, the pressure wheel assembly comprises a first pressure roller 18, a second pressure roller 19 and a pneumatic push rod 22, the first drafting roller 25 and the second drafting roller 26 are arranged above the first roller 13 and the second roller 33, and the pressure wheel assembly comprises a first pressure roller 18, a second pressure roller 19 and a pneumatic push rod 22, and the first drafting roller 25 and the second drafting roller 26 are arranged between the first vertical plate 10 and the second vertical plate 11. 6 are located on the same horizontal plane, the first roller 13 and the second roller 33 are located on the same horizontal plane, a first drive motor 14 is provided at one end of the first roller 13, a second drive motor 27 is provided at one end of the second roller 33, a slide groove 30 is provided on a wall surface of one side where the first vertical plate 10 and the second vertical plate 11 are close to each other, a slide plate 28 is movably engaged in the slide groove 30, a drive unit for moving the slide plate 28 is provided in the slide groove 30, and the drive unit includes a servo motor 17 and a threaded rod 31.

[0025] Specifically, a structure for flattening and smoothing the PTFE staple fiber processed product 12 is formed by arranging a first roller 13, a first stretching roller 25, a second stretching roller 26 and a second roller 33 between the first vertical plate 10 and the second vertical plate 11. The slide plate 28 can be moved by arranging a driving unit. The second roller 33 and the second stretching roller 26 are movably arranged on the slide plate 28. The movement of the slide plate 28 drives the second roller 33 and the second stretching roller 26 to move synchronously to achieve the stretching of the PTFE staple fiber, thereby meeting the production needs and saving the raw materials used in the debugging process.

[0026] One end of the first roller 13 is movably mounted on a side wall of the second vertical plate 11 through a bearing, the first drive motor 14 is fixedly mounted on a side wall of the first vertical plate 10 away from the second vertical plate 11, and the other end of the first roller 13 movably passes through the first vertical plate 10 and is fixedly connected to the output shaft of the first drive motor 14.

[0027] Specifically, the first drive motor 14 is fixedly mounted on a side wall of the first vertical plate 10, one end of the first roller 13 is movably mounted on a side wall of the second vertical plate 11 through a bearing, the other end of the first roller 13 movably passes through the first vertical plate 10 and is fixedly connected to the output shaft of the first drive motor 14, and the first drive motor 14 drives the first roller 13 to rotate during operation.

[0028] One end of the second roller 33 is movably mounted on the outer wall of the slide plate 28 on one side of the second vertical plate 11 through a bearing, a rectangular groove 15 is penetrated on one side wall of the first vertical plate 10, a support plate 29 is fixedly mounted on one side wall of the slide plate 28, the support plate 29 is located in the rectangular groove 15, the second drive motor 27 is fixed on the support plate 29, and the other end of the second roller 33 movably penetrates the slide plate 28 on one side of the first vertical plate 10 and is fixedly connected to the output shaft of the second drive motor 27.

[0029] Specifically, one end of the second roller 33 is installed on the outer wall surface of the skateboard 28 on one side of the second vertical plate 11 through a bearing, the second drive motor 27 is fixedly installed on the support plate 29, and the support plate 29 is fixedly installed on one side wall of the skateboard 28. The other end of the second roller 33 movably passes through the skateboard 28 on one side of the first vertical plate 10 and is fixedly connected to the output shaft of the second drive motor 27. The second drive motor 27 drives the second roller 33 to rotate during operation.

[0030] Both ends of the first drafting roller 25 are movably mounted between the first vertical plate 10 and the second vertical plate 11 through bearings, and both ends of the second drafting roller 26 are movably mounted between the two slide plates 28 through bearings.

[0031] Specifically, both ends of the first stretching roller 25 are movably installed between the first vertical plate 10 and the second vertical plate 11 through bearings, and both ends of the second stretching roller 26 are movably installed between the two slides 28 through bearings. The first stretching roller 25 and the second stretching roller 26 can change the movement direction of the PTFE staple fiber processed product 12.

[0032] Rectangular plates 20 are provided at both ends of the first pressing roller 18 and the second pressing roller 19. The rectangular plates 20 are L-shaped. The first pressing roller 18, the second pressing roller 19 and the rectangular plates 20 are movably connected. A protrusion 21 is fixedly connected to the inner wall surface of the rectangular plate 20. The telescopic ends of the pneumatic push rods 22 are fixedly connected to the corresponding rectangular plates 20. The pneumatic push rods 22 on both sides of the first pressing roller 18 are respectively fixedly installed on the top of the first vertical plate 10 and the second vertical plate 11. The pneumatic push rods 22 on both sides of the second pressing roller 19 are respectively fixedly installed on the top of the slide plate 28. The first vertical plate 10, the second vertical plate 11 and the slide plate 28 are provided with limiting grooves at the positions corresponding to the protrusions 21, and the protrusions 21 are movably engaged in the corresponding limiting grooves.

[0033] Specifically, a pressure wheel assembly is arranged directly above the first roller 13 and the second roller 33. The pneumatic push rod 22 controls the height of the rectangular plate 20 to rise and fall during operation. The rectangular plate 20 drives the corresponding first pressure roller 18 or the second pressure roller 19 to rise and fall synchronously. The first pressure roller 18 is close to the PTFE staple fiber processed product 12 to press and smooth the PTFE staple fiber processed product 12.

[0034] The right ends of the first vertical plate 10 and the second vertical plate 11 are fixedly installed with the servo motor 17, one end of the threaded rod 31 is movably installed on a side wall of the slide slot 30 through a bearing, and the other end of the threaded rod 31 movably penetrates the slide slot 30 and is fixedly connected to the corresponding output shaft of the servo motor 17. The threaded rod 31 movably penetrates the corresponding slide plate 28, and a guide rod 32 is also fixedly installed in the slide slot 30, and the guide rod 32 movably penetrates the corresponding slide plate 28, and the guide rod 32 is located on the side of the first vertical plate 10 and the second vertical plate 11.

[0035] Specifically, a servo motor 17 is fixedly installed on the right side of the first vertical plate 10 and the second vertical plate 11. The servo motor 17 drives the corresponding threaded rod 31 to rotate during operation. The threaded rod 31 movably penetrates the slide plate 28 to drive the slide plate 28 to move. A guide rod 32 is arranged in the slide groove 30 to limit and guide the movement of the slide plate 28. The movement of the slide plate 28 drives the second roller 33 and the second stretching roller 26 to move as a whole, thereby realizing the stretching of the PTFE staple fiber processed product 12. The adjustment accuracy is higher by adopting the driving mode of the servo motor 17 and the threaded rod 31.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A PTFE staple fiber drafting device, comprising a first vertical plate (10), a second vertical plate (11) and a PTFE staple fiber processed product (12), characterized in that: A first roller (13), a first drafting roller (25), a second drafting roller (26) and a second roller (33) are arranged between the first vertical plate (10) and the second vertical plate (11); a pressure wheel assembly is arranged above the first roller (13) and the second roller (33); the pressure wheel assembly includes a first pressure roller (18), a second pressure roller (19) and a pneumatic push rod (22); the first drafting roller (25) and the second drafting roller (26) are located on the same horizontal plane; the first roller (13) and the second roller (33) are arranged above the first roller (13) and the second roller (33); (33) are located on the same horizontal plane, a first drive motor (14) is arranged at one end of the first roller (13), a second drive motor (27) is arranged at one end of the second roller (33), a sliding groove (30) is provided on a wall surface of a side where the first vertical plate (10) and the second vertical plate (11) are close to each other, a slide plate (28) is movably engaged in the sliding groove (30), a drive unit for moving the slide plate (28) is arranged in the sliding groove (30), and the drive unit includes a servo motor (17) and a threaded rod (31).

2. The PTFE staple fiber drafting device according to claim 1, characterized in that: One end of the first roller (13) is movably mounted on a side wall of the second vertical plate (11) via a bearing, the first drive motor (14) is fixedly mounted on a side wall of the first vertical plate (10) away from the second vertical plate (11), and the other end of the first roller (13) movably penetrates the first vertical plate (10) and is fixedly connected to the output shaft of the first drive motor (14).

3. The PTFE staple fiber drafting device according to claim 1, characterized in that: One end of the second roller (33) is movably mounted on the outer wall of the slide plate (28) on one side of the second vertical plate (11) through a bearing, a rectangular groove (15) is penetrated through one side wall of the first vertical plate (10), a support plate (29) is fixedly mounted on one side wall of the slide plate (28), the support plate (29) is located in the rectangular groove (15), the second drive motor (27) is fixed on the support plate (29), and the other end of the second roller (33) movably penetrates the slide plate (28) on one side of the first vertical plate (10) and is fixedly connected to the output shaft of the second drive motor (27).

4. The PTFE staple fiber drafting device according to claim 1, characterized in that: The two ends of the first drafting roller (25) are movably mounted between the first vertical plate (10) and the second vertical plate (11) via bearings, and the two ends of the second drafting roller (26) are movably mounted between the two slide plates (28) via bearings.

5. The PTFE staple fiber drafting device according to claim 1, characterized in that: A rectangular plate (20) is provided at both ends of the first pressing roller (18) and the second pressing roller (19), and the rectangular plate (20) is L-shaped. The first pressing roller (18), the second pressing roller (19) and the rectangular plate (20) are movably connected. A protrusion (21) is fixedly connected to the inner wall surface of the rectangular plate (20). The telescopic end of the pneumatic push rod (22) is fixedly connected to the corresponding rectangular plate (20). The pneumatic push rods (22) on both sides of the first pressing roller (18) are respectively fixedly installed on the top of the first vertical plate (10) and the second vertical plate (11). The pneumatic push rods (22) on both sides of the second pressing roller (19) are respectively fixedly installed on the top of the slide plate (28). The first vertical plate (10), the second vertical plate (11) and the slide plate (28) are provided with limiting grooves at positions corresponding to the protrusions (21), and the protrusions (21) are movably engaged in the corresponding limiting grooves.

6. The PTFE staple fiber drafting device according to claim 1, characterized in that: The right ends of the first vertical plate (10) and the second vertical plate (11) are both fixedly mounted with a servo motor (17); one end of the threaded rod (31) is movably mounted on a side wall of the slide groove (30) through a bearing; the other end of the threaded rod (31) movably passes through the slide groove (30) and is fixedly connected to the output shaft of the corresponding servo motor (17).

7. The PTFE staple fiber drafting device according to claim 6, characterized in that: The threaded rod (31) movably penetrates the corresponding slide plate (28), and a guide rod (32) is fixedly installed in the slide groove (30). The guide rod (32) movably penetrates the corresponding slide plate (28), and the guide rod (32) is located on the side of the first vertical plate (10) and the second vertical plate (11).

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