A tension screening device in optical fiber processing

Abstract

The application relates to the field of optical fiber processing, and discloses a tension screening device in optical fiber processing, which comprises a fixed plate, a tension screening assembly movably connected to one end of the fixed plate, a rotating wheel set, a stretching wheel, a limiting rotating wheel, a moving hole, a sliding hole set, a first moving wheel and a second moving wheel, and folding frames rotatably connected to the rear ends of the limiting rotating wheel, the first moving wheel and the second moving wheel; a limiting assembly connected to one end of the fixed plate, the limiting assembly comprising a first connecting rod, a first limiting rod, a first limiting groove, a first spring, a second limiting rod and a second limiting groove; a driving assembly connected to one end of the fixed plate, the driving assembly comprising a double-shaft motor, a circular gear, a connecting block, a third limiting groove and a limiting frame. Compared with the prior art, the application has higher tension screening efficiency in optical fiber processing and reduces the working time of the staff.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical fiber processing, in particular to a tension screening device in optical fiber processing. BACKGROUND

[0002] In the manufacturing process of optical fiber, the optical fiber master material is usually heated by a drawing furnace to melt it and then drawn into a glass optical fiber. The outer periphery of the drawn glass optical fiber forms a cladding layer, thereby manufacturing an optical fiber. The manufactured optical fiber is then wound and wound on a bobbin.

[0003] In the prior art, the optical fiber unwound from the previous bobbin is guided along the line by a pulley, etc. while a predetermined tension is applied to the optical fiber. The optical fiber tension is screened, and then the optical fiber screened in this way is wound on other bobbins. In this way, the optical fiber screening machine is used to irradiate the produced optical fiber in sequence to screen out unqualified optical fiber. The screening speed is slow, and the time for tension detection of the optical fiber is long. The overall screening efficiency is low. Therefore, we disclose a tension screening device in optical fiber processing to meet the needs. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the shortcomings of the prior art, the present application provides a tension screening device in optical fiber processing, which has the advantages of high detection efficiency, and solves the problems of low screening efficiency of optical fiber processing in the prior art.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the present application provides the following technical scheme: a tension screening device in optical fiber processing, comprising a fixed plate, one end of the fixed plate is movably connected with a tension screening assembly, the tension screening assembly comprises a rotating wheel set, a stretching wheel, a limiting rotating wheel, a moving hole, a sliding hole set, a first moving wheel and a second moving wheel, the rear end of the limiting rotating wheel, the first moving wheel and the second moving wheel are rotatably connected with a folding frame; one end of the fixed plate is connected with a limiting assembly, the limiting assembly comprises a first connecting rod, a first limiting rod, a first limiting groove, a first spring, a second limiting rod and a second limiting groove; one end of the fixed plate is connected with a driving assembly, the driving assembly comprises a double-shaft motor, a circular gear, a connecting block, a third limiting groove and a limiting frame; the top end of the fixed plate is connected with a moving assembly, the moving assembly comprises a third moving groove, a rectangular limiting block, a screening light source and a chain set; the middle part of the fixed plate is connected with a reflecting assembly, the reflecting assembly comprises a first moving groove, a reflecting plate set, a second connecting rod, a connecting cylinder, a second moving groove and a third spring; both ends of the fixed plate are connected with a fixed assembly, the fixed assembly comprises a fixed wheel, a fourth spring and a limiting plate, the rotating wheel set and the limiting rotating wheel are rotatably connected with the fixed plate, and the stretching wheel is slidably connected with the third limiting groove.

[0008] Preferably, the fixed plate is fixedly connected with the double-shaft motor, one end of the output shaft of the double-shaft motor is fixedly sleeved with the circular gear, the circular gear is engaged with the connecting block, the connecting block is slidably connected with the limiting frame, and the connecting block is rotatably connected with the stretching wheel.

[0009] Preferably, the second moving wheel is slidably connected in the inner cavity of the moving hole, the first moving wheel is slidably connected in the inner cavity of the sliding hole set, and the sliding hole set comprises a plurality of groups of holes with increasing lengths.

[0010] Preferably, the fixed plate is rotatably connected with the first connecting rod, both ends of the first connecting rod are rotatably connected with the first limiting rod and the second limiting rod respectively, the inner cavity of one end of the fixed plate is provided with the first limiting groove, the first spring fixedly connected with the inner wall top surface of the first limiting groove is fixedly connected with the first limiting rod, the bottom ends of the first limiting rod and the second limiting rod are matched with the second limiting groove, the first limiting rod is slidably connected with the first limiting groove, and the first limiting groove is communicated with the sliding hole set.

[0011] Preferably, the third moving groove is arranged at the top end of the fixed plate, the rectangular limiting block is slidably connected in the inner cavity of the third moving groove, the rectangular limiting block is rotatably connected with the screening light source through a chain wheel, the chain wheel is rotatably connected with the chain set, and the chain set is rotatably connected with the fixed plate.

[0012] Preferably, the light-reflecting plate set comprises two light-reflecting plates, one of the light-reflecting plates at one end of the light-reflecting plate set is fixedly connected with the fixed plate, and the other light-reflecting plate at the other end of the light-reflecting plate set is slidably connected with the inner cavity of the first moving slot of the fixed plate.

[0013] Preferably, the second moving slot in the middle of the fixed plate is rotationally connected with the connecting cylinder, the second connecting rod is movably sleeved with the connecting cylinder, the second connecting rod is rotationally connected with the light-reflecting plate set, and the second connecting rod is fixedly connected with the inner wall of the connecting cylinder through the third spring.

[0014] Preferably, the limiting plate is rotationally connected with the fixed wheel, the fixed wheel is fixedly connected with the limiting plate through the fourth spring, and the limiting plate is attached to the outer wall of the fixed wheel.

[0015] Preferably, the outer wall of the fixed wheel is wrapped with a rubber ring, the rotating wheel set, the stretching wheel, the limiting rotating wheel, the first moving wheel and the second moving wheel are all connected with the optical fiber through pulleys, the chain set comprises a support and a light source body, and the light source body is adapted to the light-reflecting plate set.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the present application provides a tension screening device in optical fiber processing, which has the following beneficial effects:

[0018] 1. The tension screening device in optical fiber processing, by disconnecting the connection between the moving limiting assembly and the first moving wheel and pulling the folding frame, the folding frame drives the second moving wheel and the first moving wheel to move in turn, so that the relative position of the first moving wheel and the second moving wheel increases, the length of the detected optical fiber increases, the length of the optical fiber detected by the device at one time is longer, and the screening speed of the optical fiber tension is faster.

[0019] 2. The tension screening device in optical fiber processing, by driving the first moving wheel and the second moving wheel back to the original position through the folding frame, the optical fiber is gathered in the middle of the device, then the light-reflecting assembly is pulled to the required position, and the moving assembly is rotated, so that the screening light source moves and irradiates the optical fiber, and the light reflected by the light-reflecting plate set is used to judge whether the optical fiber is qualified or not, so that the optical fiber tension screening result comes out faster, and the overall work efficiency is improved.

[0020] 3. The tension screening device in optical fiber processing, by fixing the second connecting rod to the inner wall of the connecting cylinder through the third spring, the third spring can push the light-reflecting plate set forward through the second connecting rod after the light-reflecting plate set moves to the required position, so that the two ends of the light-reflecting plate set are located in the same plane, the influence on the judgment of the optical fiber detection result is reduced, and the optical fiber tension screening result is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 This is a frontal perspective view of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the back of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure of the first spring of the present invention;

[0024] Figure 4 This is a cross-sectional perspective view of the fixing plate of the present invention.

[0025] Figure 5 This is a schematic diagram of the connection structure of the folding frame of the present invention;

[0026] Figure 6 For the present invention Figure 5 A magnified structural diagram at point A;

[0027] Figure 7 This is a schematic diagram of the connection structure of the reflector assembly of the present invention;

[0028] Figure 8 This is a schematic diagram of the connection structure of the connecting cylinder of the present invention;

[0029] Figure 9 For the present invention Figure 8 A magnified structural diagram at point B;

[0030] Figure 10 This is a schematic diagram of the connection structure of the fixed wheel of the present invention;

[0031] Figure 11 For the present invention Figure 10 A magnified structural diagram at point C.

[0032] In the diagram: 1. Fixed plate; 2. Rotating wheel assembly; 3. Tensioning wheel; 4. Limiting wheel; 5. Moving hole; 6. Sliding hole assembly; 7. First moving wheel; 8. Second moving wheel; 9. Folding frame; 10. First connecting rod; 11. First limiting rod; 12. First limiting groove; 13. First spring; 14. Second limiting rod; 15. Second limiting groove; 16. First moving groove; 17. Reflector assembly; 18. Second connecting rod; 19. Connecting cylinder; 20. Second moving groove; 21. Third moving groove; 22. Rectangular limiting block; 23. Screening light source; 24. Chain assembly; 25. Third spring; 26. Dual-axis motor; 27. Circular gear; 28. Connecting block; 29. ​​Third limiting groove; 30. Limiting frame; 31. Fixed wheel; 32. Fourth spring; 33. Limiting plate. Detailed Implementation

[0033] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts, fall within the protection scope of the present application.

[0034] As introduced in the background, the existing problems in the prior art, in order to solve the above technical problems, the present application provides a tension screening device in optical fiber processing.

[0035] In a typical embodiment of the present application, as Figures 1-11As shown, a tension screening device in optical fiber processing, including fixed plate 1, one end of fixed plate 1 is movably connected with tension screening assembly, tension screening assembly includes rotating wheel set 2, stretching wheel 3, limit rotating wheel 4, moving hole 5, sliding hole group 6, first moving wheel 7 and second moving wheel 8, the rear end of limit rotating wheel 4, first moving wheel 7 and second moving wheel 8 is rotatably connected with folding frame 9; one end of fixed plate 1 is connected with limit assembly, limit assembly includes first connecting rod 10, first limit rod 11, first limit slot 12, first spring 13, second limit rod 14 and second limit slot 15; one end of fixed plate 1 is connected with driving assembly, driving assembly includes double-shaft motor 26, circular gear 27, connecting block 28, third limit slot 29 and limit frame 30; the top end of fixed plate 1 is connected with moving assembly, moving assembly includes third moving slot 21, rectangular limit block 22, screening light source 23 and chain group 24; the middle part of fixed plate 1 is connected with light reflection assembly, light reflection assembly includes first moving slot 16, light reflection plate group 17, second connecting rod 18, connecting cylinder 19, second moving slot 20 and third spring 25; both ends of fixed plate 1 are connected with fixed assembly, fixed assembly includes fixed wheel 31, fourth spring 32 and limit plate 33, when using, the connection between moving limit assembly and first moving wheel 7 is disconnected, then folding frame 9 is pulled, so that folding frame 9 drives second moving wheel 8 and first moving wheel 7 to move in turn, so that the relative position of first moving wheel 7 and second moving wheel 8 increases, so that the length of the detection optical fiber increases, so that the device detects the length of the optical fiber longer at a time, so that the tension screening speed of the optical fiber is faster, the optical fiber is wound on rotating wheel set 2, stretching wheel 3, limit rotating wheel 4, first moving wheel 7 and second moving wheel 8 in turn, and then the position of the optical fiber is fixed by using fixed assembly, then the driving assembly is started, so that stretching wheel 3 moves to the required position according to the set tension value, so that stretching wheel 3 exerts tension on the optical fiber and screens the tension of the optical fiber, then the connection between limit assembly and first moving wheel 7 is disconnected by moving limit assembly again, so that folding frame 9 drives first moving wheel 7 and second moving wheel 8 to return to the original position, that is, the optical fiber is gathered in the middle part of the device, then the light reflection assembly is pulled to the required position, and then the moving assembly is rotated, so that screening light source 23 irradiates the optical fiber, and whether the optical fiber is qualified is judged by the light projected by light reflection plate group 17, so that the optical fiber tension screening result comes out faster, and the overall work efficiency is improved.

[0036] In this embodiment, reference is made to the accompanying drawings Figure 1 , 2, the rotating wheel group 2 and the limiting rotating wheel 4 are rotationally connected with the fixed plate 1, the stretching wheel 3 is slidingly connected with the third limiting groove 29, the fixed plate 1 is fixedly connected with the double-shaft motor 26, one end of the output shaft of the double-shaft motor 26 is fixedly sleeved with the circular gear 27, the circular gear 27 is engaged with the connecting block 28, the connecting block 28 is slidingly connected with the limiting frame 30, the connecting block 28 is rotationally connected with the stretching wheel 3, the stretching wheel 3 is slidingly connected with the third limiting groove 29, so that the third limiting groove 29 can limit the moving position of the stretching wheel 3, the connecting block 28 and the limiting frame 30 are slidingly connected, so that the limiting frame 30 can limit the moving position of the connecting block 28, so that the connecting block 28 can drive the stretching wheel 3 to move along with the rotation of the circular gear 27, so that the stretching wheel 3 can help detect the tension of the optical fiber.

[0037] In the embodiment, reference is made to the accompanying drawings Figures 1-4 , the second moving wheel 8 is slidingly connected in the inner cavity of the moving hole 5, the first moving wheel 7 is slidingly connected in the inner cavity of the sliding hole group 6, the sliding hole group 6 includes a plurality of groups of holes with lengths increasing in sequence, the fixed plate 1 is rotationally connected with the first connecting rod 10, the two ends of the first connecting rod 10 are respectively rotationally connected with the first limiting rod 11 and the second limiting rod 14, the inner cavity of one end of the fixed plate 1 is provided with the first limiting groove 12, the first spring 13 fixedly connected with the inner wall top surface of the first limiting groove 12 is fixedly connected with the first limiting rod 11, the bottom ends of the first limiting rod 11 and the second limiting rod 14 are respectively matched with the second limiting groove 15, the first limiting rod 11 is slidingly connected with the first limiting groove 12, the first limiting groove 12 is communicated with the sliding hole group 6, the sliding hole group 6 includes a plurality of groups of holes with lengths increasing in sequence, so that the relative positions of the first moving wheel 7 and the second moving wheel 8 do not change after the folding frame 9 drives the first moving wheel 7 to move to the end of the hole of the sliding hole group 6 and the folding frame 9 drives the second moving wheel 8 to move to the end of the moving hole 5, so that the first moving wheel 7 and the second moving wheel 8 are respectively distributed in the inner cavities of the sliding hole group 6 and the moving hole 5, the lengths of the optical fiber wound on the outer walls of the first moving wheel 7 and the second moving wheel 8 are increased, that is, the detection length of the optical fiber is increased, the first spring 13 is connected with the first limiting rod 11 and the first limiting groove 12, so that the first spring 13 can limit the position of the first limiting rod 11 or the second limiting rod 14 matched with the second limiting groove 15, so that the positions of the folding frame 9 folded or unfolded are fixed, so that the positions of the optical fiber wound on the outer walls of the first moving wheel 7 and the second moving wheel 8 are stable, so that the optical fiber can smoothly perform tension detection.

[0038] In the embodiment, reference is made to the accompanying drawings Figure 1 , 5, 6, the third mobile groove 21 is opened at the top end of the fixed plate 1, the rectangular limiting block 22 is slidingly connected to the inner cavity of the third mobile groove 21, the rectangular limiting block 22 is rotatably connected to the screening light source 23 through the chain wheel, the chain wheel is rotatably connected to the chain set 24, the chain set 24 is rotatably connected to the fixed plate 1, the reflector set 17 includes two reflectors, the reflector at one end of the reflector set 17 is fixedly connected to the fixed plate 1, and the reflector at the other end of the reflector set 17 is slidingly connected to the inner cavity of the first mobile groove 16 opened in the fixed plate 1, the chain set 24 includes a support and a light source body, the light source body is matched with the reflector set 17, the screening light source 23 is rotatably connected to the rectangular limiting block 22 through the chain set 24, the third mobile groove 21 can limit the moving position of the screening light source 23 through the rectangular limiting block 22, the screening light source 23 can move horizontally to detect the optical fiber, and the checking efficiency of the optical fiber is higher.

[0039] In the embodiment, reference is made to the accompanying drawings Figures 7-9 , the second mobile groove 20 opened in the middle of the fixed plate 1 is rotatably connected to the connecting barrel 19, the second connecting rod 18 is movably sleeved with the connecting barrel 19, the second connecting rod 18 is rotatably connected to the reflector set 17, the second connecting rod 18 is fixedly connected to the inner wall of the connecting barrel 19 through the third spring 25, and the second mobile groove 20 is rotatably connected to the connecting barrel 19, so that the resistance of the movement of one end of the reflector set 17 is reduced, the second connecting rod 18 is fixedly connected to the inner wall of the connecting barrel 19 through the third spring 25, so that after the reflector set 17 moves to the required position, the third spring 25 can push the reflector set 17 to move forward through the second connecting rod 18, both ends of the reflector set 17 are located on the same plane, the influence on the judgment of the optical fiber detection result is reduced, and when the reflector set 17 is not used, the reflector set 17 can be moved to one end of the first mobile groove 16, the movement of the first mobile wheel 7 in the inner cavity of the sliding hole set 6 is not interfered, and the whole device can be used smoothly.

[0040] In the embodiment, reference is made to the accompanying drawings Figure 10 、 11 , the limiting plate 33 is rotatably connected to the fixed wheel 31, the fixed wheel 31 is fixedly connected to the limiting plate 33 through the fourth spring 32, the limiting plate 33 is in close contact with the outer wall of the fixed wheel 31, the limiting plate 33 is rotatably connected to the fixed wheel 31, so that the fourth spring 32 can limit the moving position of the limiting plate 33, and the fourth spring 32 makes the fixing effect of the limiting plate 33 on the position of the optical fiber better.

[0041] In the embodiment, reference is made to the accompanying drawings Figure 1 , the outer wall of the fixed wheel 31 is wrapped with a rubber ring, the rotating wheel set 2, the stretching wheel 3, the limiting rotating wheel 4, the first mobile wheel 7 and the second mobile wheel 8 are all connected to the optical fiber through pulleys, so that the two ends of the optical fiber are effectively limited, and the middle part of the optical fiber can be smoothly tension detected.

[0042] The working principle of the present application is as follows: in use, the mobile limiting assembly is disconnected from the first mobile wheel 7, then the folding frame 9 is pulled to move the second mobile wheel 8 and the first mobile wheel 7 in turn, so that the relative position of the first mobile wheel 7 and the second mobile wheel 8 is increased, thereby increasing the length of the detection optical fiber, so that the device can detect longer optical fiber length at a time, and the optical fiber tension screening speed is faster,

[0043] Then the mobile limiting assembly is disconnected from the first mobile wheel 7, so that the folding frame 9 drives the first mobile wheel 7 and the second mobile wheel 8 back to the original position, that is, the optical fiber is gathered in the middle of the device, then the reflective component is pulled to the required position, and the moving assembly is rotated to make the screening light source 23 irradiate the optical fiber, and the light projected by the reflective plate group 17 is used to judge whether the optical fiber is qualified or not, so that the optical fiber tension screening result is obtained faster, and the overall work efficiency is improved,

[0044] The second connecting rod 18 is fixedly connected with the inner wall of the connecting cylinder 19 through the third spring 25, so that after the reflective plate group 17 is moved to the required position, the third spring 25 can push the reflective plate group 17 forward through the second connecting rod 18, so that the two ends of the reflective plate group 17 are located in the same plane, reducing the influence on the judgment of the optical fiber detection result, and the reflective plate group 17 can be moved to one end of the first moving groove 16 when not in use, without interfering with the movement of the first mobile wheel 7 in the sliding hole group 6, so that the device can be used smoothly as a whole.

[0045] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tension screening device for optical fiber processing, characterized in that: Including fixed plate (1), one end of fixed plate (1) is provided with tension screening assembly, tension screening assembly includes rotating wheel group (2), stretching wheel (3), limit rotating wheel (4), moving hole (5), sliding hole group (6), first moving wheel (7) and second moving wheel (8), rear end of limit rotating wheel (4), first moving wheel (7) and second moving wheel (8) are all rotatably connected with folding frame (9), when using, folding frame (9) is pulled, so that folding frame (9) drives second moving wheel (8) and first moving wheel (7) to move in turn, so that the relative position of first moving wheel (7) and second moving wheel (8) increases. One end of the fixed plate (1) is provided with a limiting assembly, the limiting assembly includes a first connecting rod (10), a first limiting rod (11), a first limiting slot (12), a first spring (13), a second limiting rod (14) and a second limiting slot (15), the first spring (13) is connected with the first limiting rod (11) and the first limiting slot (12), so that the first spring (13) can limit the position of the first limiting rod (11) or the second limiting rod (14) after being matched with the second limiting slot (15), so that the position of the folding frame (9) after being folded or unfolded is fixed, one end of the fixed plate (1) is provided with a driving assembly, the driving assembly includes a double shaft motor (26), a circular gear (27), a connecting block (28), a third limiting slot (29) and a limiting frame (30), the top end of the fixed plate (1) is provided with a moving assembly, the moving assembly includes a third moving slot (21), a rectangular limiting block (22), a screening light source (23) and a chain group (24), the middle part of the fixed plate (1) is provided with a reflecting assembly, the reflecting assembly includes a first moving slot (16), a reflecting plate group (17), a second connecting rod (18), a connecting cylinder (19), a second moving slot (20) and a third spring (25), both ends of the fixed plate (1) are connected with a fixed assembly, the fixed assembly includes a fixed wheel (31), a fourth spring (32) and a limiting plate (33), the rotating wheel group (2) and the limiting rotating wheel (4) are rotatably connected with the fixed plate (1), the stretching wheel (3) is slidably connected with the third limiting slot (29), the second moving wheel (8) is slidably connected in the inner cavity of the moving hole (5), the first moving wheel (7) is slidably connected in the inner cavity of the sliding hole group (6), the sliding hole group (6) includes a plurality of groups of holes with increasing lengths, the third moving slot (21) is opened at the top end of the fixed plate (1), the rectangular limiting block (22) is slidably connected in the inner cavity of the third moving slot (21), the rectangular limiting block (22) is rotatably connected with the screening light source (23) through a chain wheel, the chain wheel is rotatably connected with the chain group (24), the chain group (24) is rotatably connected with the fixed plate (1), the third moving slot (21) limits the moving position of the screening light source (23) through the rectangular limiting block (22), so that the screening light source (23) can move horizontally to detect the optical fiber; the reflecting plate group (17) includes two reflecting plates, one end of the reflecting plate group (17) is fixedly connected with the fixed plate (1), the reflecting plate at the other end of the reflecting plate group (17) is slidably connected in the inner cavity of the first moving slot (16) opened in the fixed plate (1).

2. A tension screening device for use in fiber processing according to claim 1, wherein: The fixed plate (1) is fixedly connected with the double-shaft motor (26), one end of the output shaft of the double-shaft motor (26) is fixedly sleeved with the gear wheel (27), the gear wheel (27) is engaged with the connecting block (28), the connecting block (28) is slidably connected with the limiting frame (30), and the connecting block (28) is rotatably connected with the stretching wheel (3).

3. A tension screening device for use in fiber processing according to claim 1, wherein: The fixed plate (1) is rotatably connected with the first connecting rod (10), both ends of the first connecting rod (10) are rotatably connected with the first limiting rod (11) and the second limiting rod (14) respectively, the inner cavity of one end of the fixed plate (1) is provided with the first limiting groove (12), the first spring (13) fixedly connected with the inner wall top surface of the first limiting groove (12) is fixedly connected with the first limiting rod (11), the bottom ends of the first limiting rod (11) and the second limiting rod (14) are matched with the second limiting groove (15), the first limiting rod (11) is slidably connected with the first limiting groove (12), and the first limiting groove (12) is communicated with the sliding hole group (6).

4. A tension screening device for use in fiber processing according to claim 1, wherein: The second moving groove (20) formed in the middle of the fixed plate (1) is rotatably connected with the connecting barrel (19), the second connecting rod (18) is movably sleeved with the connecting barrel (19), the second connecting rod (18) is rotatably connected with the light reflection plate group (17), and the second connecting rod (18) is fixedly connected with the inner wall of the connecting barrel (19) through the third spring (25).

5. A tension screening device for use in fiber processing according to claim 1, wherein: The limiting plate (33) is rotatably connected with the fixed wheel (31), the fixed wheel (31) is fixedly connected with the limiting plate (33) through the fourth spring (32), and the limiting plate (33) is attached to the outer wall of the fixed wheel (31).

6. A tension screening device for use in fiber processing according to claim 5, wherein: The outer wall of the fixed wheel (31) is wrapped with a rubber ring, and the rotating wheel group (2), the stretching wheel (3), the limiting rotating wheel (4), the first moving wheel (7) and the second moving wheel (8) are connected with the optical fiber through pulleys.

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