Automatic inner winding device for ultra-fine optical fiber

Abstract

This invention belongs to the technical field of winding devices, specifically referring to an automatic internal winding device for ultra-fine optical fibers. It includes a winding assembly, a traction assembly, a dual-mode lateral movement assembly, a reversing control assembly, a reversing assembly, a lateral movement guide assembly, a drive assembly, and a frame. The winding assembly is mounted on the drive assembly, the traction assembly is positioned between the winding assembly and the lateral movement guide assembly, and the dual-mode lateral movement assembly is located within the traction assembly. This invention maintains a constant span for the suspended portion of the optical fiber while preventing breakage due to excessive bending. Through the intermittent combination of the antagonistic and commensurate drive assemblies, the rotation direction of the lateral movement screw can be reciprocated during unidirectional rotation of the drive shaft, thereby achieving reciprocating drive of the traction slider.

Description

Technical Field

[0001] This invention belongs to the technical field of winding devices, specifically referring to an automatic internal winding device for ultra-fine optical fibers. Background Technology

[0002] After production, optical fibers are often stored by winding them into spools or reels. Compared with other flexible materials such as filaments, the biggest characteristic of optical fibers is their greater brittleness, which has a strict minimum bending radius limit. Since the exit position of the optical fiber is fixed in the previous process, the traditional method of reciprocating lateral movement of the guide head is not only prone to increasing the bending amplitude of the optical fiber and causing it to break, but also makes it difficult to adjust the optical fiber supply speed because the width of the suspended part is constantly changing. Summary of the Invention

[0003] To address the above issues and overcome the shortcomings of existing technologies, this invention proposes a winding scheme in which the guide head is fixed in position and the winding drum reciprocates laterally during rotation. This scheme maintains a constant span for the suspended portion of the optical fiber and avoids breakage due to excessive bending of the fiber. By intermittently combining the antagonistic and commensurate transmission components, this scheme can reciprocately change the rotation direction of the transverse lead screw when the drive shaft rotates in one direction, thereby achieving reciprocating drive of the traction slider.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes an automatic internal winding device for ultra-fine optical fiber, including a winding assembly, a traction assembly, a dual-mode lateral movement assembly, a reversing control assembly, a reversing assembly, a lateral movement guide assembly, a drive assembly, and a frame. The winding assembly is disposed on the drive assembly, the traction assembly is disposed between the winding assembly and the lateral movement guide assembly, the dual-mode lateral movement assembly is disposed in the traction assembly, the reversing control assembly is disposed on the frame, the reversing assembly is disposed in the reversing control assembly, and the lateral movement guide assembly and the drive assembly are disposed on the frame.

[0005] The traction assembly includes a traction slider, a traction rod, and a force gauge. The traction slider can pull the winding assembly to move laterally via the traction rod, and the force gauge can provide feedback on the traction force of the traction rod.

[0006] This solution uses the reciprocating sliding of the traction slider to pull the winding drum laterally during continuous rotation and winding, thereby achieving layer-by-layer winding without bending the optical fiber itself.

[0007] Furthermore, the winding assembly includes a winding shaft, a winding block, and a winding cylinder. The winding shaft is rotatably disposed in the drive assembly. The winding shaft is provided with a detachable support plate. The winding shaft can rotate and slide in the winding block. The winding block is symmetrically provided with elastic pins. The winding shaft is provided with a groove. The winding cylinder is provided with a boss that matches the winding shaft. The winding cylinder can slide relative to the winding shaft. The winding cylinder is provided with a limiting groove that matches the elastic pin.

[0008] The elastic pin is slidably disposed in the limiting groove.

[0009] The winding block and the winding drum can be connected by the elastic pin. The lateral movement of the winding block drives the winding drum to move laterally. The groove on the winding shaft will not affect the rotation of the winding block, but the cooperation between the groove and the boss can prevent relative rotation between the winding drum and the winding shaft.

[0010] Preferably, the traction slider is mounted on the transverse guide assembly, the two ends of the traction rod are respectively hinged to the traction slider and the winding block, and the tension gauge is mounted on the traction slider.

[0011] Furthermore, the dual-mode lateral movement assembly includes a lateral movement screw, a support block, and a half-width nut. A transmission box is provided on the frame. The lateral movement screw is rotatably disposed between the frame and the transmission box. The support block is fixedly connected to the traction slider. The half-width nut is slidably disposed on the support block. When the support block and the half-width nut are closed, they can be threadedly driven with the lateral movement screw.

[0012] The dual-mode lateral movement assembly also includes a spring plate and a shift cam. The spring plate is located between the support block and the half-width nut. The shift cam is rotatably located in the traction slider and has a handle.

[0013] The rotation of the shift cam can be controlled by turning the handle, which in turn controls the height of the half-nut. The inner wall of the half-nut is provided with threads that match the transverse lead screw. When the half-nut and the support block are separated, the rotation of the transverse lead screw cannot drive the traction slider to move laterally.

[0014] Furthermore, the reversing control assembly includes a drive motor, a driven bracket, and a lifter. The drive motor is mounted on the frame and has a drive shaft. The lifter is located in the transmission box, and the driven bracket is mounted on the lifter.

[0015] By raising and lowering the lifting device, the transmission mode of the reversing component can be controlled, thereby achieving bidirectional drive of the transverse lead screw while the drive shaft continues to rotate.

[0016] Furthermore, the reversing assembly includes a double universal joint and a sliding sleeve. One end of the double universal joint is connected to a transverse lead screw, and the other end of the double universal joint is provided with a sliding cam. The sliding cam is engaged and slidably disposed in the sliding sleeve, and the sliding sleeve is rotatably disposed in the driven bracket.

[0017] Preferably, the reversing assembly further includes a counter-rotating transmission assembly and a co-rotating transmission assembly, wherein the counter-rotating transmission assembly is disposed between the drive shaft and the sliding sleeve, and the co-rotating transmission assembly is disposed between the drive shaft and the sliding sleeve.

[0018] Only one of the opposite-direction drive components and the same-direction drive components can be engaged. The engagement and disengagement of the opposite-direction drive components and the same-direction drive components can be controlled by the vertical lifting of the lifter.

[0019] Furthermore, the transverse guide assembly includes a transverse guide rod and a linear bearing. The transverse guide rod is disposed between the frame and the transmission box. The linear bearing is engaged and slidably disposed on the transverse guide rod. The traction slider is fixed to the outside of the linear bearing.

[0020] Furthermore, the drive assembly includes a belt drive assembly and a winding fork, the winding fork being disposed in a transmission box, the winding shaft being rotatably disposed in the winding fork, and the belt drive assembly being disposed between the winding shaft and the drive shaft.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows:

[0022] (1) This scheme can pull the winding cylinder to move laterally during the continuous rotation and winding of the winding cylinder by the reciprocating sliding of the traction slider, thereby achieving layer-by-layer winding without bending the optical fiber body.

[0023] (2) The connection between the winding block and the winding cylinder can be completed by the elastic pin, so that the winding cylinder can be moved synchronously by the lateral movement of the winding block. The groove on the winding shaft will not affect the rotation of the winding block, but the relative rotation between the winding cylinder and the winding shaft can be avoided by the cooperation of the groove and the boss.

[0024] (3) The rotation of the shift cam can be controlled by turning the handle, thereby controlling the height of the half nut. The inner wall of the half nut is provided with a thread that matches the transverse lead screw. When the half nut and the support block are separated, the rotation of the transverse lead screw cannot drive the traction slider to move laterally.

[0025] (4) By raising and lowering the lifting device, the transmission mode of the reversing component can be controlled, thereby realizing bidirectional drive of the transverse lead screw while the drive shaft is continuously rotating.

[0026] (5) Only one of the opposite-direction transmission components and the same-direction transmission components can be combined. The combination and separation of the opposite-direction transmission components and the same-direction transmission components can be controlled by the vertical lifting of the lifting device. Attached Figure Description

[0027] Figure 1 This is a perspective view of an automatic internal winding device for ultra-fine optical fiber proposed in this invention.

[0028] Figure 2 This is a front view of an automatic internal winding device for ultra-fine optical fiber proposed in this invention.

[0029] Figure 3 This is a right view of an automatic internal winding device for ultra-fine optical fiber proposed in this invention.

[0030] Figure 4 for Figure 2 A cross-sectional view along the cutting line AA;

[0031] Figure 5 for Figure 3 A cross-sectional view along the cutting line BB;

[0032] Figure 6 for Figure 4 A cross-sectional view along the section line CC;

[0033] Figure 7 This is an exploded structural diagram of an automatic internal winding device for ultra-fine optical fiber proposed in this invention.

[0034] Figure 8 for Figure 4 A magnified view of a section at point I;

[0035] Figure 9 for Figure 5 Enlarged view of a section at point II;

[0036] Figure 10 for Figure 7 Enlarged view of a section at point III;

[0037] Figure 11 for Figure 6 A magnified view of a section at point IV.

[0038] Among them, 1. Winding assembly, 2. Traction assembly, 3. Dual-mode lateral movement assembly, 4. Reversing control assembly, 5. Reversing assembly, 6. Lateral movement guide assembly, 7. Drive assembly, 8. Frame, 11. Winding shaft, 12. Winding block, 13. Winding drum, 21. Traction slider, 22. Traction rod, 23. Force gauge, 31. Lateral movement screw, 32. Support block, 33. Half-width nut, 34. Spring plate, 35. Shift cam, 41. 42. Drive motor; 43. Driven bracket; 54. Lifter; 55. Opposite-direction transmission assembly; 56. Same-direction transmission assembly; 57. Double universal joint; 58. Sliding sleeve; 69. Lateral guide rod; 60. Linear bearing; 71. Belt drive assembly; 72. Winding fork; 81. Transmission box; 111. Support plate; 121. Elastic pin; 131. Limiting groove; 351. Handle; 411. Drive shaft; 531. Sliding cam.

[0039] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] like Figures 1-11 As shown, the present invention proposes an automatic internal winding device for ultra-fine optical fiber, including a winding assembly 1, a traction assembly 2, a dual-mode lateral movement assembly 3, a commutation control assembly 4, a commutation assembly 5, a lateral movement guide assembly 6, a drive assembly 7, and a frame 8. The winding assembly 1 is disposed on the drive assembly 7, the traction assembly 2 is disposed between the winding assembly 1 and the lateral movement guide assembly 6, the dual-mode lateral movement assembly 3 is disposed in the traction assembly 2, the commutation control assembly 4 is disposed on the frame 8, the commutation assembly 5 is disposed in the commutation control assembly 4, and the lateral movement guide assembly 6 and the drive assembly 7 are disposed on the frame 8.

[0043] The traction assembly 2 includes a traction slider 21, a traction rod 22, and a force gauge 23. The traction slider 21 can pull the winding assembly 1 to move laterally through the traction rod 22, and the force gauge 23 can provide feedback on the traction force of the traction rod 22.

[0044] This solution uses the reciprocating sliding of the traction slider 21 to pull the winding drum 13 laterally during continuous rotation and winding, thereby achieving layer-by-layer winding without bending the optical fiber body.

[0045] The winding assembly 1 includes a winding shaft 11, a winding block 12, and a winding cylinder 13. The winding shaft 11 is rotatably mounted in the drive assembly 7. The winding shaft 11 is provided with a detachable support plate 111. The winding shaft 11 can rotate and slide in the winding block 12. The winding block 12 is symmetrically provided with elastic pins 121. The winding shaft 11 is provided with a groove. The winding cylinder 13 is provided with a boss that matches the winding shaft 11. The winding cylinder 13 can slide relative to the winding shaft 11. The winding cylinder 13 is provided with a limiting groove 131 that matches the elastic pin 121.

[0046] The elastic pin 121 is slidably disposed in the limiting groove 131.

[0047] The winding block 12 and the winding drum 13 can be connected by the elastic pin 121. Thus, the winding drum 13 can be moved synchronously by the lateral movement of the winding block 12. The groove on the winding shaft 11 will not affect the rotation of the winding block 12. However, the relative rotation between the winding drum 13 and the winding shaft 11 can be avoided by the cooperation of the groove and the boss.

[0048] The traction slider 21 is mounted on the transverse guide assembly 6, and the two ends of the traction rod 22 are respectively hinged to the traction slider 21 and the winding block 12. The tension gauge 23 is mounted on the traction slider 21.

[0049] The dual-mode transverse assembly 3 includes a transverse lead screw 31, a support block 32, and a half-width nut 33. A transmission box 81 is provided on the frame 8. The transverse lead screw 31 is rotatably located between the frame 8 and the transmission box 81. The support block 32 is fixedly connected to the traction slider 21. The half-width nut 33 is slidably located on the support block 32. When the support block 32 and the half-width nut 33 are closed, they can be threadedly driven with the transverse lead screw 31.

[0050] The dual-mode transverse component 3 also includes a spring plate 34 and a shift cam 35. The spring plate 34 is located between the support block 32 and the half-width nut 33. The shift cam 35 is rotatably located in the traction slider 21. A handle 351 is provided on the shift cam 35.

[0051] The shift cam 35 can be rotated by turning the handle 351, thereby controlling the height of the half-nut 33. The inner wall of the half-nut 33 is provided with threads that match the transverse lead screw 31. When the half-nut 33 and the support block 32 are separated, the rotation of the transverse lead screw 31 cannot drive the traction slider 21 to move laterally.

[0052] The reversing control assembly 4 includes a drive motor 41, a driven bracket 42, and a lifter 43. The drive motor 41 is mounted on the frame 8 and has a drive shaft 411. The lifter 43 is located in the transmission box 81, and the driven bracket 42 is mounted on the lifter 43.

[0053] By raising and lowering the lifting device 43, the transmission mode of the reversing component 5 can be controlled, thereby achieving bidirectional drive of the transverse lead screw 31 while the drive shaft 411 continues to rotate.

[0054] The reversing assembly 5 includes a double universal joint 53 and a sliding sleeve 54. One end of the double universal joint 53 is connected to the transverse lead screw 31, and the other end of the double universal joint 53 is provided with a sliding cam 531. The sliding cam 531 is engaged and slidably disposed in the sliding sleeve 54, and the sliding sleeve 54 is rotatably disposed in the driven bracket 42.

[0055] The reversing assembly 5 also includes a counter-rotating transmission assembly 51 and a co-rotating transmission assembly 52. ​​The counter-rotating transmission assembly 51 is located between the drive shaft 411 and the sliding sleeve 54, and the co-rotating transmission assembly 52 is located between the drive shaft 411 and the sliding sleeve 54.

[0056] Only one of the opposite-direction transmission assembly 51 and the same-direction transmission assembly 52 can be engaged. The engagement and disengagement of the opposite-direction transmission assembly 51 and the same-direction transmission assembly 52 can be controlled by the vertical lifting of the lifter 43.

[0057] The opposite-direction transmission assembly 51 can be a wheel-type meshing transmission assembly, such as a gear or a friction transmission pair; the same-direction transmission assembly 52 can be a belt transmission assembly 71.

[0058] The transverse guide assembly 6 includes a transverse guide rod 61 and a linear bearing 62. The transverse guide rod 61 is located between the frame 8 and the transmission box 81. The linear bearing 62 is engaged and slidably mounted on the transverse guide rod 61. The traction slider 21 is fixed to the outside of the linear bearing 62.

[0059] The drive assembly 7 includes a belt drive assembly 71 and a winding fork 72. The winding fork 72 is located in the transmission box 81, and the winding shaft 11 is rotatably located in the winding fork 72. The belt drive assembly 71 is located between the winding shaft 11 and the drive shaft 411.

[0060] In practical use, the user first needs to remove the support plate 111 at the end, install the winding drum 13 on the winding shaft 11, and then install the support plate 111. Since the winding drum 13 and the winding shaft 11 are connected by a groove and a boss, the winding drum 13 can only slide laterally relative to the winding shaft 11 and cannot rotate relative to it. Then, the elastic pin 121 is inserted into the limiting groove 131 to complete the connection between the winding block 12 and the winding drum 13. At this time, the winding shaft 11 can rotate in the winding block 12, and the winding block 12 can move the winding drum 13 laterally along the winding shaft 11. The winding drum 13 rotates with the winding shaft 11.

[0061] After one end of the optical fiber is passed through the fixed guide head and fixed on the winding drum 13, the drive motor 41 is started. The drive shaft 411 drives the winding shaft 11 to rotate continuously through the belt drive assembly 71, thereby realizing the continuous winding of the optical fiber.

[0062] During the continuous winding of the optical fiber, the traction slider 21 needs to slowly and uniformly fold back and move laterally to achieve the technical purpose of winding layer by layer.

[0063] When the lifting device 43 drives the driven bracket 42 to descend to the low position, the opposite direction transmission component 51 separates, and the same direction transmission component 52 is in a tensioned state. At this time, the drive shaft 411 drives the sliding sleeve 54 to rotate in the same direction through the same direction transmission component 52, which in turn drives the transverse lead screw 31 to rotate. Through the thread transmission between the transverse lead screw 31 and the half-width nut 33, the traction slider 21 is pushed to move laterally. When the traction slider 21 moves laterally, it will drive the winding block 12 and the winding cylinder 13 to move laterally through the traction rod 22, thereby achieving a single-layer winding effect from one side to the other.

[0064] When the winding drum 13 slides to the limit position, the tension of the traction rod 22 gradually increases. The tension gauge 23 can not only directly display the tension of the traction rod 22, but also send an electrical signal to drive the lifting device 43 to change state when the tension reaches a certain threshold.

[0065] After receiving the signal, the lifting device 43 is driven to rise to the high position, and the opposite direction transmission component 51 is engaged. At this time, the same direction transmission component 52 is in a relaxed non-transmission state. There are retaining edges on both sides of the pulley of the same direction transmission component 52 to ensure that the belt will not disengage from the pulley. At this time, the drive shaft 411 drives the sliding sleeve 54 to rotate in the opposite direction through the opposite direction transmission component 51, which in turn drives the transverse lead screw 31 to rotate in the opposite direction. Through the thread transmission between the transverse lead screw 31 and the half-width nut 33, the traction slider 21 is pushed to move in the opposite direction, thereby realizing the winding of the next layer of optical fiber.

[0066] During the continuous rotation and winding process of the winding drum 13 following the winding shaft 11, the optical fiber can be wound. This winding method, which involves the winding drum 13 moving back and forth, avoids the problem of excessive bending of the optical fiber caused by the movement of the guide head in conventional reciprocating winding.

[0067] After winding is complete, the end support plate 111 can be removed to remove the wound cylinder 13.

[0068] As another new embodiment of the present invention, a soft magnetic sheet that repels each other can be provided between the belt and the pulley of the co-directional transmission assembly 52. ​​When the co-directional transmission assembly 52 is not tensioned, the belt and the pulley separate from each other, thereby further reducing friction.

[0069] As another new embodiment of the present invention, when switching to manual auxiliary mode, it is necessary to manually turn the handle 351 and drive the shift cam 35 to rotate. After the shift cam 35 is no longer pressed, the half nut 33 leaves the transverse lead screw 31 and the support block 32 under the elastic force of the spring plate 34. Since there is no thread on the support block 32 that matches the transverse lead screw 31, the rotation of the transverse lead screw 31 will not drive the traction slider 21 to move laterally. At this time, the lateral movement of the traction slider 21 is completely controlled by manual free operation.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An automatic inward winding device for ultra-fine optical fiber, comprising a winding assembly (1), a traction assembly (2), and a frame (8), characterized in that: It also includes a dual-mode lateral movement component (3), a commutation control component (4), a commutation component (5), a lateral movement guide component (6), and a drive component (7); The winding assembly (1) is disposed on the drive assembly (7), the traction assembly (2) is disposed between the winding assembly (1) and the transverse guide assembly (6), the dual-mode transverse assembly (3) is disposed in the traction assembly (2), the reversing control assembly (4) is disposed on the frame (8), the reversing assembly (5) is disposed in the reversing control assembly (4), and the transverse guide assembly (6) and the drive assembly (7) are disposed on the frame (8); The traction assembly (2) includes: The traction slider (21) and the traction rod (22) allow the traction slider (21) to pull the winding assembly (1) laterally via the traction rod (22). The tension gauge (23) can provide feedback on the traction force of the pull rod (22).

2. The automatic inward winding device for ultra-fine optical fiber according to claim 1, characterized in that: The winding assembly (1) includes: A winding shaft (11) and a winding lever (12) are provided. The winding shaft (11) is rotatably mounted in the drive assembly (7). A detachable support disk (111) is provided on the winding shaft (11). The winding shaft (11) can rotate and slide in the winding lever (12). Elastic pins (121) are symmetrically provided on the winding lever (12). The winding shaft (11) is provided with a groove. The winding cylinder (13) is provided with a boss that matches the winding shaft (11), the winding cylinder (13) can slide relative to the winding shaft (11), and the winding cylinder (13) is provided with a limiting groove (131) that matches the elastic pin (121). The elastic pin (121) is slidably disposed in the limiting groove (131).

3. The automatic inward winding device for ultra-fine optical fiber according to claim 2, characterized in that: The traction slider (21) is mounted on the transverse guide assembly (6), and the two ends of the traction rod (22) are respectively hinged to the traction slider (21) and the winding block (12). The tension gauge (23) is mounted on the traction slider (21).

4. The automatic inward winding device for ultra-fine optical fiber according to claim 3, characterized in that: The dual-mode transverse assembly (3) includes a transverse lead screw (31), a support block (32), and a half-width nut (33). A transmission box (81) is provided on the frame (8). The transverse lead screw (31) is rotatably disposed between the frame (8) and the transmission box (81). The support block (32) is fixedly connected to the traction slider (21). The half-width nut (33) is slidably disposed on the support block (32). When the support block (32) and the half-width nut (33) are closed, they can be threadedly driven with the transverse lead screw (31).

5. The automatic inward winding device for ultra-fine optical fiber according to claim 4, characterized in that: The dual-mode transverse component (3) also includes a spring plate (34) and a shift cam (35). The spring plate (34) is located between the support block (32) and the half-width nut (33). The shift cam (35) is rotatably located in the traction slider (21). The shift cam (35) is provided with a handle (351).

6. The automatic inward winding device for ultra-fine optical fiber according to claim 5, characterized in that: The reversing control assembly (4) includes a drive motor (41), a driven bracket (42) and a lifter (43). The drive motor (41) is mounted on the frame (8) and has a drive shaft (411) on it. The lifter (43) is located in the transmission box (81) and the driven bracket (42) is mounted on the lifter (43).

7. The automatic inward winding device for ultra-fine optical fiber according to claim 6, characterized in that: The reversing assembly (5) includes a double universal joint (53) and a sliding sleeve (54). One end of the double universal joint (53) is connected to the transverse lead screw (31), and the other end of the double universal joint (53) is provided with a sliding cam (531). The sliding cam (531) is engaged and slidably disposed in the sliding sleeve (54), and the sliding sleeve (54) is rotatably disposed in the driven bracket (42).

8. The automatic inward winding device for ultra-fine optical fiber according to claim 7, characterized in that: The reversing assembly (5) further includes a counter-rotating transmission assembly (51) and a co-rotating transmission assembly (52). The counter-rotating transmission assembly (51) is located between the drive shaft (411) and the sliding sleeve (54), and the co-rotating transmission assembly (52) is located between the drive shaft (411) and the sliding sleeve (54).

9. The automatic inward winding device for ultra-fine optical fiber according to claim 8, characterized in that: The transverse guide assembly (6) includes a transverse guide rod (61) and a linear bearing (62). The transverse guide rod (61) is located between the frame (8) and the transmission box (81). The linear bearing (62) is engaged and slidably mounted on the transverse guide rod (61). The traction slider (21) is fixed to the outside of the linear bearing (62).

10. An automatic inward winding device for ultra-fine optical fiber according to claim 9, characterized in that: The drive assembly (7) includes a belt drive assembly (71) and a winding fork (72). The winding fork (72) is located in the transmission box (81). The winding shaft (11) is rotatably located in the winding fork (72). The belt drive assembly (71) is located between the winding shaft (11) and the drive shaft (411).

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