Rotary traction stranding machine

By using a symmetrically designed rotating bracket and a precise transmission system, the problem of unstable rotation of the stranding machine was solved, improving the quality of stranded wire and the life of the equipment, and achieving higher concentricity and rotational stability.

CN224248354UActive Publication Date: 2026-05-15ZHENGWEI ELECTRICAL TECH (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGWEI ELECTRICAL TECH (JIANGSU) CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing stranding machine's rotating support structure is uneven, resulting in unstable rotation, which affects the stranding quality and equipment lifespan.

Method used

The rotating support, which adopts a coaxial symmetrical design, ensures the concentricity and stability of the rotating support through the first and second take-up wheels and drive mechanism, combined with the fixing clamp and precision transmission system, and improves the stability and safety of the equipment through braking and speed measuring devices.

Benefits of technology

It improves the quality of stranded wire and the service life of equipment, reduces the vibration of the rotating support, and achieves higher concentricity and rotational stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rotary traction stranding machine, which comprises a rack, a rotary bracket, a first leading wheel, a second leading wheel, a first driving mechanism and a second driving mechanism, the rotating bracket is rotationally arranged on the rack around the central shaft of the rotating bracket; the first leading wheel and the second leading wheel are sequentially pivoted to the rotating bracket; the first driving mechanism drives the first leading wheel to rotate; the second driving mechanism drives the rotating support to rotate. The rotating support comprises a first main shaft, a first supporting disc, a second main shaft, a second supporting disc, a pair of upper supporting shafts and a pair of lower supporting shafts. The first supporting disc is fixed to the first main shaft, the second supporting disc is fixed to the second main shaft, the pair of upper supporting shafts is fixed between the first supporting disc and the second supporting disc, and the pair of lower supporting shafts is fixed between the first supporting disc and the second supporting disc. A fixing clamp is arranged between the upper supporting shaft and the lower supporting shaft which are located on the same side. The rotating shaft has the advantages of being high in concentricity, stable in rotation and long in service life.
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Description

Technical Field

[0001] This utility model relates to a stranding mechanism, and more particularly to a rotary traction stranding machine. Background Technology

[0002] A stranding machine is a device used to produce wires and cables by twisting multiple strands of fine wire together to form a single cable. The stranding principle of existing stranding equipment is as follows: multiple strands of wire are released from the pay-off machine and introduced into the main shaft of the stranding machine. From the main shaft, they enter a rotating support. The rotating support twists the multiple strands together, and finally, guide rollers wind the twisted wire into a take-up reel. Because stranding requires high-speed rotation of the wire, the concentricity of the rotating support is crucial. Existing stranding machines typically use a rotating frame structure, where the rotating frame is enclosed on all four sides and bottom by mounting plates, with an opening on the surface. The take-up rollers are then installed into the rotating frame through these openings. This structure, due to the opening on one side of the rotating frame, results in uneven circumferential distribution of force during rotation. This uneven force causes vibration, making the rotation less stable and consequently affecting the quality of the stranded wire and the service life of the stranding machine. Utility Model Content

[0003] The purpose of this invention is to provide a rotary traction stranding machine with high concentricity, stable rotation, and long service life.

[0004] To achieve the above objectives, the rotary traction stranding machine provided by this utility model includes a frame, a rotary support, a first take-up wheel, a second take-up wheel, a first drive mechanism, and a second drive mechanism; the rotary support is rotatably mounted on the frame around its own central axis; the first take-up wheel and the second take-up wheel are pivotally connected to the rotary support in sequence; the first drive mechanism is mounted on the frame and drives the first take-up wheel to rotate; the second drive mechanism is mounted on the frame and drives the rotary support to rotate; the rotary support includes a first main shaft, a first support disc, a second main shaft, a second support disc, and a pair of... An upper support shaft and a pair of lower support shafts are provided; a first main shaft and a second main shaft are coaxially arranged and pivotally connected to both ends of the frame; a first support disk is coaxially fixed to the first main shaft, a second support disk is coaxially fixed to the second main shaft, a pair of upper support shafts are fixed between the first support disk and the second support disk, and a pair of lower support shafts are fixed between the first support disk and the second support disk and are symmetrically arranged with respect to the central axis of the first main shaft; a fixing clamp is provided between the upper support shaft and the lower support shaft located on the same side.

[0005] This invention features a first and second take-up wheel mounted on a rotating bracket. A first drive mechanism rotates the first take-up wheel, allowing the core wire to pass sequentially through the first and second take-up wheels and the rotating bracket. Simultaneously, a second drive mechanism drives the rotating bracket to rotate around its central axis, enabling the core wire to be twisted while being output forward. Furthermore, by coaxially arranging the first main shaft, first support disc, second support disc, and second main shaft, and symmetrically arranging a pair of upper support shafts and a pair of lower support shafts around the central axis, the entire rotating bracket structure is symmetrically and uniformly distributed, greatly ensuring the concentricity of all components. Additionally, a fixing clamp is provided between the upper and lower support shafts on the same side, ensuring precise spacing between them and preventing relative deformation. This further guarantees the concentricity of the components on the rotating bracket. Consequently, vibration during rotation is significantly reduced, rotation is smoother, the quality of the twisted wire is effectively improved, and the service life of the equipment is extended.

[0006] Preferably, the fixing clamp includes a clamp body and a connecting plate, the clamp body clamps the upper support shaft and the lower support shaft respectively, and the connecting plate is fixedly connected to the two clamp bodies.

[0007] Preferably, the connecting plate is located inside the upper and lower support shafts. This allows the fixing clamp to be located inside the rotating bracket, effectively reducing the volume of the rotating bracket and resulting in a more compact and reasonable structure.

[0008] Preferably, the first drive mechanism includes a first servo motor, a first transmission mechanism, a reduction gearbox, and a second transmission mechanism. The first servo motor is mounted on the frame and its output end is connected to the input end of the first transmission mechanism. The output end of the first transmission mechanism is connected to the input end of the reduction gearbox, the output end of the reduction gearbox is connected to the input end of the second transmission mechanism, and the output end of the second transmission mechanism is connected to the first take-up wheel. By using the reduction gearbox to transmit the output power of the first servo motor to the first take-up wheel, mechanical assembly errors can be reduced, thereby achieving precise transmission and effectively reducing the failure rate.

[0009] Specifically, the first transmission mechanism includes a first driving pulley, a transition pulley, a first driven pulley, a first transmission belt, and a second transmission belt. The first driving pulley is connected to the output end of the first servo motor, the transition pulley is coaxially connected to the first main shaft, and the first driven pulley is connected to the input end of the gearbox. The first transmission belt surrounds the first driving pulley and the transition pulley, and the second transmission belt surrounds the transition pulley and the first driven pulley. By setting the boundary line of the transition belt on the first main shaft, and then transmitting the power output from the first servo motor to the gearbox through the first and second transmission belts, the purpose of power transmission can be achieved, and the gearbox can rotate with the rotating support, ensuring no interference, operational stability, and a compact and reasonable structural layout.

[0010] Specifically, the second transmission mechanism includes a second driving pulley, a second driven pulley, and a third transmission belt. The second driving pulley is connected to the output end of the gearbox, the second driven pulley is coaxially connected to the first take-up pulley, and the third transmission belt surrounds the second driving pulley and the second driven pulley.

[0011] Preferably, the central shaft of the first spindle has a first through hole, and an input roller is provided at the end of the first through hole near the first take-up wheel. The central shaft of the second spindle has a second through hole, and an output roller is provided at the end of the second through hole near the second take-up wheel. The core wire passes through the first through hole and the input roller sequentially during input, and passes through the output roller and the second through hole sequentially during output. By providing through holes on the first and second spindles respectively, the core wire can freely pass through the first spindle and enter the interior of the rotating bracket, and then be output from the second spindle. Therefore, the rotating bracket can twist the core wire, effectively reducing the volume of the rotating bracket and achieving high-speed operation.

[0012] Specifically, a first combined wire guide roller is provided between the input roller and the first take-up roller, and a second combined wire guide roller is provided between the second take-up roller and the output roller. By setting the first combined wire guide roller and the second combined wire guide roller, the core wire can be guided and sorted, thereby stably passing the core wire through the first take-up roller and the second take-up roller, improving the quality of the stranded wire.

[0013] Preferably, the rotary traction stranding machine further includes a braking device, which is disposed on the frame and brakes at least one of the first support disc and the second support disc.

[0014] Preferably, the rotary traction stranding machine further includes a speed measuring device mounted on the frame to measure the rotational speed of the first or second main shaft. The braking device allows for rapid braking of the rotating support, enabling quick braking in emergency situations, thus ensuring both operational stability and safety.

[0015] Specifically, a fourth transmission mechanism is provided at one end of the first or second spindle, and a transmission shaft is provided on the side of the frame near the fourth transmission mechanism. The input end of the fourth transmission mechanism is connected to the first or second spindle, and the output end of the fourth transmission mechanism is connected to the transmission shaft. The transmission shaft is connected to the speed measuring device through a fifth transmission mechanism. By utilizing the fourth transmission mechanism, the drive shaft, and the fifth transmission mechanism, the speed measuring device can measure the speed of the first or second spindle, effectively monitoring the rotation speed of the rotating support and ensuring the stability of the stranded wire quality.

[0016] Specifically, the fourth transmission mechanism includes a fourth driving transmission wheel, a fourth driven transmission wheel, and a fourth transmission belt. The fourth driving transmission wheel is coaxially connected to the first main shaft or the second main shaft, the fourth driven transmission wheel is coaxially connected to the transmission shaft, and the fourth transmission belt is wrapped around the fourth driving transmission wheel and the fourth driven transmission wheel. Attached Figure Description

[0017] Figure 1 This is a perspective view of the rotary traction stranding machine of this utility model.

[0018] Figure 2 This is the front view of the rotary traction stranding machine of this utility model.

[0019] Figure 3 This is a utility model Figure 1 Enlarged view of section A.

[0020] Figure 4 This is a top view of the rotary traction stranding machine of this utility model.

[0021] Figure 5 This is a side view of the rotary traction stranding machine of this utility model.

[0022] Figure 6 This is a diagram showing the core wire routing of the rotary traction stranding machine of this utility model. Detailed Implementation

[0023] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] like Figures 1 to 4As shown, the rotary traction stranding machine 100 of this utility model includes a frame 1, a rotary support 2, a first take-up wheel 3, a second take-up wheel 4, a first drive mechanism 5, and a second drive mechanism; the rotary support 2 is rotatably mounted on the frame 1 around its own central axis; the first take-up wheel 3 and the second take-up wheel 4 are pivotally connected to the rotary support 2 in sequence; the pivot axis of the first take-up wheel and the second take-up wheel 4 is perpendicular to the central axis of the rotary support 2. The first driving mechanism 5 is mounted on the frame 1 and drives the first take-up wheel 3 to rotate; the second driving mechanism is mounted on the frame 1 and drives the rotating support 2 to rotate. The rotating support 2 includes a first main shaft 21, a first support disc 22, a second main shaft 23, a second support disc 24, a pair of upper support shafts 25, and a pair of lower support shafts 26. The first main shaft 21 and the second main shaft 23 are coaxially arranged and pivotally connected to both ends of the frame 1. The first support disc 22 is coaxially fixed to the first main shaft 21, the second support disc 24 is coaxially fixed to the second main shaft 23, the pair of upper support shafts 25 are fixed between the first support disc 22 and the second support disc 24, and the pair of lower support shafts 26 are fixed between the first support disc 22 and the second support disc 24 and are symmetrically arranged with respect to the central axis of the first main shaft 21. A fixing clamp 27 is provided between the upper support shaft 25 and the lower support shaft 26 on the same side.

[0025] Please see again Figure 2 and Figure 3The fixing clamp 27 includes a clamping body 271 and a connecting plate 272. The clamping body 271 clamps the upper support shaft 25 and the lower support shaft 26 respectively, and the connecting plate 272 is fixedly connected to the two clamping bodies 271. The connecting plate 272 is located inside the upper support shaft 25 and the lower support shaft 26. This allows the fixing clamp 27 to be located inside the rotating bracket 2, effectively reducing the volume of the rotating bracket 2 and making the structure more compact and reasonable. Specifically, the clamping body 271 has a receiving hole for the upper support shaft 25 or the lower support shaft 26 to pass through. One side of the clamping body 271 is an opening 271a, which communicates with the receiving hole, so that the opposite sides of the clamping body 271 form clamping arms 271a to clamp the upper support shaft 25 or the lower support shaft 26. The two clamping arms 271a of the same clamping body 271 are connected and fixed by screws, so that the opening of the two clamping arms 271a is narrowed, thereby clamping the corresponding upper support shaft 25 or lower support shaft 26. Two or more clamping bodies 271 are provided at the same end of the connecting plate 272, making the connection between the connecting plate 272 and the upper support shaft 25 and lower support shaft 26 more stable. When two clamping bodies 271 are provided at the same end of the connecting plate 272, the fixing clamp is a small fixing clamp; when three or more clamping bodies 271 are provided at the same end of the connecting plate 272, the fixing clamp is a large fixing clamp. In this embodiment, small fixing clamps are provided at both ends of the upper support shaft 25 and the lower support shaft 26, while a large fixing clamp is provided in the middle position between the upper support shaft 25 and the lower support shaft 26. A third support disc 28 is provided at both ends of the large fixing clamp. Furthermore, the clamping body 271 and the connecting plate 272 are fixedly connected by screws.

[0026] Please see again Figure 2 and Figure 3 The first drive mechanism 5 includes a first servo motor 51, a first transmission mechanism 52, a reduction gearbox 53, and a second transmission mechanism 54. The reduction gearbox 53 is a standard general-purpose worm gear reducer. The reduction gearbox 53 is fixed to the rotating bracket 2, specifically, it is fixed between the two upper support shafts 25 via a mounting bracket. The first servo motor 51 is mounted on the frame 1, and its output end is connected to the input end of the first transmission mechanism 52. The output end of the first transmission mechanism 52 is connected to the input end of the reduction gearbox 53, and the output end of the reduction gearbox 53 is connected to the input end of the second transmission mechanism 54. The output end of the second transmission mechanism 54 is connected to the first take-up wheel 3. By using the reduction gearbox 53 to transmit the output power of the first servo motor 51 to the first take-up wheel 3, mechanical assembly errors can be reduced, thereby achieving precise transmission and effectively reducing the failure rate.

[0027] Please see again Figure 2 and Figure 3The first transmission mechanism 52 includes a first active transmission pulley 521, a transition transmission pulley 522, a first driven transmission pulley 523, a first transmission belt 524, and a second transmission belt 525. The first active transmission pulley 521 is connected to the output end of the first servo motor 51. The transition transmission pulley 522 is coaxially connected to the first main shaft 21 and has two rims. The first driven transmission pulley 523 is connected to the input end of the reduction gearbox 53. The first transmission belt 524 is wrapped around one rim of the first active transmission pulley 521 and one rim of the transition transmission pulley 522. The second transmission belt 525 is wrapped around the other rim of the transition transmission pulley 522 and between the first driven transmission pulley 523. By setting the boundary line of the transition transmission belt on the first main shaft 21, and then transmitting the power output from the first servo motor 51 to the reduction gearbox 53 through the first transmission belt 524 and the second transmission belt 525, the purpose of power transmission can be achieved, and the reduction gearbox 53 can rotate together with the rotating support 2, ensuring no interference, ensuring operational stability, and a compact and reasonable structural layout. The second transmission mechanism 54 includes a second driving transmission pulley 541, a second driven transmission pulley 542, and a third transmission belt 543. The second driving transmission pulley 541 is connected to the output end of the reduction gearbox 53, the second driven transmission pulley 542 is coaxially connected to the first take-up pulley 3, and the third transmission belt 543 surrounds the second driving transmission pulley 541 and the second driven transmission pulley 542.

[0028] Please see Figure 2 and Figure 4The first spindle 21 has a first through hole 211 on its central shaft. An input roller 7 is located at one end of the first through hole 211 near the first take-up wheel 3. The input roller 7 is fixedly mounted on the rotating bracket 2 and has an adjustable angle to adjust the wire inlet angle. The second spindle 23 has a second through hole 231 on its central shaft. An output roller 8 is located at one end of the second through hole 231 near the second take-up wheel 4. The output roller 8 is fixedly mounted on the rotating bracket 2 and has an adjustable angle to adjust the wire outlet angle. The core wire 200 passes through the first through hole 211 and the input roller 7 sequentially during input, and through the output roller 8 and the second through hole 231 sequentially during output. By providing through holes on the first spindle 21 and the second spindle 23, the core wire 200 can freely pass through the first spindle 21 and enter the rotating bracket 2, and then exit from the second spindle 23. Therefore, the rotating bracket 2 can twist the core wire 200, effectively reducing the volume of the rotating bracket 2 and achieving high-speed operation. Furthermore, a first combined wire guide roller 9 is provided between the input roller 7 and the first take-up roller 3, and the first combined wire guide roller 9 is fixedly mounted on the rotating bracket 2; a second combined wire guide roller 10 is provided between the second take-up roller 4 and the output roller 8, and the second combined wire guide roller 10 is fixedly mounted on the rotating bracket 2. By setting the first combined wire guide roller 9 and the second combined wire guide roller 10, the core wire 200 can be guided and organized, thereby stably passing the core wire 200 through the first take-up roller 3 and the second take-up roller 4, improving the quality of the stranded wire.

[0029] Please see again Figure 2 The rotary traction stranding machine 100 further includes a braking device 110, which is disposed on the frame 1 and brakes at least one of the first support disc 22 and the second support disc 24. In this embodiment, the braking device 110 is provided below both the first support disc 22 and the second support disc 24. The braking device can be a brake disc type braking device 110 or other types of braking devices 110.

[0030] Please see again Figure 2 and Figure 5The rotary traction stranding machine 100 also includes a speed measuring device 120, which is mounted on the frame 1 and used to measure the rotational speed of the first spindle 21 or the second spindle 23. A braking device 110 is provided to quickly brake the rotating support 2, enabling rapid braking in emergency situations, thus ensuring both operational stability and safety. A fourth transmission mechanism 120 is provided at one end of the first spindle 21 or the second spindle 23. In this embodiment, one end of the second spindle 23 is connected to the fourth transmission mechanism 120. A transmission shaft 130 is located on the side of the frame 1 near the fourth transmission mechanism 120, below the second spindle 23. The input end of the fourth transmission mechanism 140 is connected to the first spindle 21 or the second spindle 23, and the output end of the fourth transmission mechanism 140 is connected to the transmission shaft 130. The transmission shaft 130 is connected to the speed measuring device 120 via a fifth transmission mechanism 150. By utilizing the fourth transmission mechanism 140, the drive shaft, and the fifth transmission mechanism 150, the speed measuring device 120 can measure the speed of the first main shaft 21 or the second main shaft 23, effectively monitoring the rotation speed of the rotating support 2 and ensuring the stability of the stranded wire quality. Specifically, the fourth transmission mechanism 140 includes a fourth drive transmission wheel 141, a fourth driven transmission wheel 142, and a fourth transmission belt 143. The fourth drive transmission wheel 141 is coaxially connected to the first main shaft 21 or the second main shaft 23, the fourth driven transmission wheel 142 is coaxially connected to the transmission shaft 130, and the fourth transmission belt 143 surrounds the fourth drive transmission wheel 141 and the fourth driven transmission wheel 142. The fifth transmission mechanism 150 includes a fifth driving transmission wheel 151, a fifth driven transmission wheel 152, and a fifth transmission belt 153. The fifth driving transmission wheel 151 is coaxially connected to the transmission shaft 130, the fifth driven transmission wheel 152 is connected to the input shaft of the speed measuring device 120, and the fifth transmission belt 153 is wrapped around the fifth driving transmission wheel 151 and the fifth driven transmission wheel 152.

[0031] In summary and in combination Figure 2 and Figure 6 The working principle of the rotary traction stranding machine 100 of this utility model is described in detail below:

[0032] First, the core wire 200 is released from the wire feeding mechanism and passes through the first through hole 211. Then, it sequentially passes around the input roller 7, the first combined wire guide roller 9, the first take-up roller 3, the second take-up roller 4, the second combined wire guide roller, and the output roller 8. Finally, the core wire 200 is output through the second through hole 231. During stranding, the first drive mechanism 5 and the second drive mechanism are activated. The second drive mechanism drives the first take-up roller 3 to rotate around its own central axis. The rotation of the first take-up roller 3 drives the core wire 200 forward. Simultaneously, the first drive mechanism 5 drives the first main shaft 21 to rotate, causing the entire rotating bracket 2 to rotate around its own central axis. The rotation of the rotating bracket 2 drives the first take-up roller 3 and the second take-up roller 4 to rotate around the central axis of the rotating bracket 2. At this time, the core wire 200 passing through the rotating bracket 2 is stranded under the drive of the rotating bracket 2.

[0033] This invention utilizes a first take-up wheel 3 and a second take-up wheel 4 mounted on the rotating bracket 2. A first driving mechanism 5 drives the first take-up wheel 3 to rotate, allowing the core wire 200 to pass sequentially through the first take-up wheel 3, the second take-up wheel 4, and the rotating bracket 2. Simultaneously, a second driving mechanism drives the rotating bracket 2 to rotate around its central axis, enabling the core wire 200 to be twisted while being output forward. Furthermore, by coaxially arranging the first main shaft 21, the first support disk 22, the second support disk 24, and the second main shaft 23, and symmetrically arranging a pair of upper support shafts 25 and a pair of lower support shafts 26 around the central axis, the entire rotating bracket 2 achieves a symmetrical and uniform structural distribution, greatly ensuring the concentricity of all components. Meanwhile, by providing a fixing clip 27 between the upper support shaft 25 and the lower support shaft 26 on the same side, the fixing clip 27 can ensure the accuracy of the distance between the upper support shaft 25 and the lower support shaft 26, and avoid relative deformation between the upper support shaft 25 and the lower support shaft 26, thereby further ensuring the concentricity of the components on the rotating bracket 2. As a result, the vibration of the rotating bracket 2 is greatly reduced when rotating, the rotation is more stable, the quality of the stranded wire is effectively improved, and the service life of the equipment is extended.

[0034] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A rotary traction stranding machine, characterized in that: It includes a frame, a rotating support, a first picking wheel, a second picking wheel, a first drive mechanism, and a second drive mechanism; the rotating support is rotatably mounted on the frame around its own central axis; the first picking wheel and the second picking wheel are pivotally connected to the rotating support in sequence; The first drive mechanism is mounted on the frame and drives the first take-up wheel to rotate; the second drive mechanism is mounted on the frame and drives the rotating support to rotate. The rotating support includes a first main shaft, a first support disc, a second main shaft, a second support disc, a pair of upper support shafts, and a pair of lower support shafts. The first main shaft and the second main shaft are coaxially arranged and pivotally connected to both ends of the frame. The first support disc is coaxially fixed to the first main shaft, the second support disc is coaxially fixed to the second main shaft, the pair of upper support shafts are fixed between the first support disc and the second support disc, and the pair of lower support shafts are fixed between the first support disc and the second support disc and are symmetrically arranged with respect to the central axis of the first main shaft. A fixing clamp is provided between the upper support shaft and the lower support shaft on the same side.

2. The rotary traction stranding machine according to claim 1, characterized in that: The fixing clamp includes a clamp body and a connecting plate. The clamp body clamps the upper support shaft and the lower support shaft respectively, and the connecting plate is fixedly connected to the two clamp bodies.

3. The rotary traction stranding machine according to claim 2, characterized in that: The connecting plate is located inside the upper support shaft and the lower support shaft.

4. The rotary traction stranding machine according to claim 1, characterized in that: The first drive mechanism includes a first servo motor, a first transmission mechanism, a reduction gearbox, and a second transmission mechanism. The first servo motor is mounted on the frame and its output end is connected to the input end of the first transmission mechanism. The output end of the first transmission mechanism is connected to the input end of the reduction gearbox. The output end of the reduction gearbox is connected to the input end of the second transmission mechanism. The output end of the second transmission mechanism is connected to the first take-up wheel.

5. The rotary traction stranding machine according to claim 4, characterized in that: The first transmission mechanism includes a first driving transmission pulley, a transition transmission pulley, a first driven transmission pulley, a first transmission belt, and a second transmission belt. The first driving transmission pulley is connected to the output end of the first servo motor, the transition transmission pulley is coaxially connected to the first main shaft, the first driven transmission pulley is connected to the input end of the gearbox, the first transmission belt is wrapped around the first driving transmission pulley and the transition transmission pulley, and the second transmission belt is wrapped around the transition transmission pulley and the first driven transmission pulley.

6. The rotary traction stranding machine according to claim 4, characterized in that: The second transmission mechanism includes a second driving pulley, a second driven pulley, and a third transmission belt. The second driving pulley is connected to the output end of the gearbox, the second driven pulley is coaxially connected to the first take-up pulley, and the third transmission belt surrounds the second driving pulley and the second driven pulley.

7. The rotary traction stranding machine according to claim 1, characterized in that: The first spindle has a first through hole on its central shaft. An input roller is provided at one end of the first through hole near the first take-up wheel. A first combined wire guide roller is provided between the input roller and the first take-up wheel. The second spindle has a second through hole on its central shaft. An output roller is provided at one end of the second through hole near the second take-up wheel. A second combined wire guide roller is provided between the second take-up wheel and the output roller. The core wire passes sequentially through the first through hole, the input roller, the first combined wire guide roller, the first take-up wheel, the second take-up wheel, the second combined wire guide roller, the output roller, and the second through hole.

8. The rotary traction stranding machine according to claim 1, characterized in that: The rotary traction stranding machine further includes a braking device, which is mounted on the frame and brakes at least one of the first support disc and the second support disc.

9. The rotary traction stranding machine according to claim 1, characterized in that: The rotary traction stranding machine also includes a speed measuring device, which is mounted on the frame and measures the rotational speed of the first spindle or the second spindle.

10. The rotary traction stranding machine according to claim 9, characterized in that: A fourth transmission mechanism is provided at one end of the first spindle or the second spindle. A transmission shaft is provided on the side of the frame near the fourth transmission mechanism. The input end of the fourth transmission mechanism is connected to the first spindle or the second spindle, and the output end of the fourth transmission mechanism is connected to the transmission shaft. The transmission shaft is connected to the speed measuring device through a fifth transmission mechanism.