Wire tension maintenance and clamping device for cable stranding processes

Abstract

The present application relates to cable twisting processing equipment technical field, especially to a kind of wire tension maintenance and clamping device for cable twisting processing, comprising: mounting column;Multiple tensioning mechanisms, around the axis of mounting column is distributed in circular array, each tensioning mechanism includes swingably arranged mounting plate and guide wheel set mounted on the mounting plate;Multiple clamping mechanisms are set up one by one with multiple tensioning mechanisms, each clamping mechanism includes oppositely arranged first clamping wheel and second clamping wheel, the second clamping wheel is slidably mounted to change the clamping gap between the first clamping wheel;The clamping mechanism is set on the side close to the twisted end of wire;Connecting ring, coaxially sleeved on the outer side of mounting column and can slide along the axial direction of mounting column;Driving part, fixedly connected between the mounting column and the connecting ring, for driving the axial sliding of connecting ring.

Description

Technical Field

[0001] This invention relates to the field of cable stranding equipment technology, and in particular to a conductor tension maintaining and clamping device for cable stranding. Background Technology

[0002] In the cable stranding process, multiple conductors are released from their respective pay-off reels, guided by a guide device, and then enter the stranding machine for stranding. To ensure the structural uniformity and electrical performance stability of the stranded conductors, it is necessary to maintain consistent and stable tension for each conductor along the traction direction. In existing technologies, a brake or tension controller is typically installed on the pay-off reel to apply pay-off tension to each conductor, and an overall tension adjustment device is installed at the front end of the stranding equipment to achieve synchronous tension adjustment of multiple conductors before they enter the stranding point. In addition, some stranding equipment also adds a tensioning wheel or swing arm mechanism in the conductor path to compensate for the dynamic tension of the conductors mechanically or pneumatically, thereby reducing tension fluctuations caused by factors such as changes in the rotational inertia of the pay-off reel and reduction in reel diameter.

[0003] However, the aforementioned existing technology still has the following drawbacks: when the wire on a certain pay-off reel is about to be completely paid off, as the remaining wire on the reel decreases, the tension control capability at the pay-off end gradually decreases; once the wire is completely detached from the pay-off reel, the tail wire between the pay-off reel and the stranding end will completely lose the tension provided by the pay-off end, causing the wire to be in a slack state during subsequent stranding and unable to maintain the same tension as other wires; this not only disrupts the tension consistency between multiple wires, causing quality problems such as looseness, serpentine shape, or uneven diameter in the stranded conductor, but also affects the stability of the entire stranding process due to the loss of constraint on the wire; although existing technologies have clamping devices installed at the inlet of the stranding equipment. While existing solutions exist, such clamping devices are typically independent of the tension adjustment mechanism. They cannot automatically and synchronously clamp the tail wire to maintain its tension after the wire is unwound, nor can they effectively isolate the tension fluctuations at the unwound end from the tension requirements at the stranding end. In particular, existing clamping devices lack the function of clamping with a first clamping force during the normal unwound phase and automatically switching to a larger clamping force to maintain the tail wire tension after unwound. They also cannot simultaneously achieve the linkage control of wire tensioning and clamping through the same drive component. Therefore, how to maintain the tail wire tension after the wire is unwound by the unwound reel, achieve automatic switching of clamping force, and effectively isolate the impact of tension fluctuations at the unwound end on the stranding end is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0004] To address the technical problems mentioned above, this invention proposes a conductor tension maintenance and clamping device for cable stranding processing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A conductor tension maintaining and clamping device for cable stranding processing, comprising: Mounting column; Multiple tensioning mechanisms are arranged in a circular array around the axis of the mounting column. Each tensioning mechanism includes a swingable mounting plate and a set of guide wheels mounted on the mounting plate. Multiple clamping mechanisms are provided, each corresponding to one of the multiple tensioning mechanisms. Each clamping mechanism includes a first clamping wheel and a second clamping wheel arranged opposite each other. The second clamping wheel is slidably mounted to change the clamping gap with the first clamping wheel. The clamping mechanism is located on one side near the stranded end of the wire. A connecting ring is coaxially sleeved on the outer side of the mounting post and can slide along the axial direction of the mounting post; A driving component is fixedly connected between the mounting post and the connecting ring, and is used to drive the connecting ring to slide axially. Multiple transmission rods, one end of each transmission rod is hinged to the mounting plate of the corresponding tensioning mechanism, and the other end of each transmission rod is hinged to the connecting ring; Multiple linkage groups, each linkage group being connected between the mounting plate of the corresponding tensioning mechanism and the second clamping wheel of the corresponding clamping mechanism; The wire is wound around the guide wheel assembly and passes through the clamping gap; When the driving component drives the connecting ring to slide along the first direction, the transmission rod drives the mounting plate to swing to tension the wire. At the same time, the mounting plate drives the second clamping wheel to move toward the first clamping wheel through the linkage rod group to clamp the wire. When the connecting ring slides along the second direction opposite to the first direction, the second clamping wheel moves away from the first clamping wheel to release the wire.

[0006] Furthermore, each of the tensioning mechanisms has a mounting plate with a first end and a second end, the first end being hinged to the side wall of the mounting column via a first mounting shaft; the guide wheel assembly includes a first roller, a second roller, and a third roller, the first roller, the second roller, and the third roller being rotatably mounted on the mounting plate, and the axes of the first roller, the second roller, and the third roller are all parallel to the axis of the first mounting shaft; the mounting plate is also provided with an opening slot for the wire to pass through.

[0007] Further, each clamping mechanism includes a mounting bracket fixedly mounted on the outer side of the mounting post, two first sliders, two second sliders, a first clamping wheel, a second clamping wheel, and two first elastic elements; the mounting bracket has two rectangular slots spaced apart, both of which extend radially along the first mounting shaft; each rectangular slot contains one first slider and one second slider; both ends of the first clamping wheel are rotatably connected to the two first sliders, and both ends of the second clamping wheel are rotatably connected to the two second sliders; each rectangular slot contains one first elastic element, one end of which is connected to the inner wall of the corresponding rectangular slot, and the other end of which is connected to the end of the corresponding first slider away from the second slider; the second clamping wheel can slide along the rectangular slot with the second slider; a clamping gap is formed between the first clamping wheel and the second clamping wheel; the axes of the first clamping wheel and the second clamping wheel are parallel to the axis of the first mounting shaft.

[0008] Furthermore, the driving component is a cylinder, the cylinder body is fixedly connected to the outer side of the mounting post, and the piston rod of the cylinder is fixedly connected to the connecting ring.

[0009] Furthermore, one end of each of the transmission rods is hinged to the second end of the mounting plate via a second mounting shaft, and the other end of each of the transmission rods is hinged to the outer side of the connecting ring via a third mounting shaft; the axes of the second mounting shaft and the third mounting shaft are both parallel to the axis of the first mounting shaft.

[0010] Furthermore, each linkage assembly includes two linkage rods; the first end of each linkage rod is hinged to a first connecting shaft provided on the corresponding mounting plate, and the second end of each linkage rod is hinged to a second connecting shaft provided on the corresponding second slider; the axes of the first connecting shaft and the second connecting shaft are both parallel to the axis of the first mounting shaft.

[0011] Furthermore, the winding path of the wire in the device is as follows: around the first roller, through the opening slot, through the clamping gap, around the second roller, and finally around the third roller.

[0012] Furthermore, it also includes two second elastic elements, which are arranged one-to-one with the two second sliders; one end of each second elastic element is connected to the inner wall of the corresponding rectangular groove, and the other end of each second elastic element is connected to the end of the corresponding second slider that is away from the first slider.

[0013] Compared with the prior art, the beneficial effects of the present invention are: Compared with existing technologies, the linkage rod assembly for maintaining and clamping conductor tension in cable stranding processing provided by this invention has significant advantages: Through the mechanical linkage of the driving component, transmission rod, and linkage rod assembly, a single driving component can simultaneously drive multiple tensioning and clamping mechanisms to operate synchronously, ensuring the synchronization of tensioning and clamping of all conductors. The structure is compact, responsive, and requires no independent control, reducing the complexity and control cost of the device. With the cooperation of the first and second elastic elements, the device can automatically switch clamping forces. During the wire feeding process, a smaller first clamping force is used to clamp the conductor, ensuring conductor stability while avoiding damage from over-clamping. Simultaneously, it effectively isolates tension fluctuations caused by changes in the wire feeding reel's diameter and moment of inertia. After wire feeding, it automatically switches to a larger second clamping force to replace the tension maintenance at the wire feeding end. The tail wire tension control effectively solves the technical problem of tail wire slack after the wire is released from the wire reel, ensuring the tension consistency of multiple wires. Through the triangular distribution of the guide wheel group, the reasonable hinge structure of the transmission rod and linkage rod group, and the precise control of the cylinder, the tension and clamping forces can be continuously adjusted, adapting to cable stranding processing of different specifications and process requirements. The structural design of the guide wheel group and clamping wheel can prevent wire slippage and damage, further improving the stability of tension maintenance. In addition, the initial state of the device facilitates wire threading, and the released state facilitates shutdown for wire replacement and maintenance. The bearings and dust covers set in each hinge part reduce mechanical wear, and the setting of elastic elements achieves flexible compensation, reduces rigid impact, extends the service life of the device, reduces maintenance costs, and improves the overall quality of cable stranding, reducing quality defects such as conductor looseness, serpentine shape, and uneven diameter. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the conductor tension maintaining and clamping device for cable stranding processing proposed in this invention. Figure 2 This is a cross-sectional view of the conductor tension maintaining and clamping device for cable stranding processing proposed in this invention. Figure 3 This is a schematic diagram of the tensioning mechanism and clamping mechanism in the conductor tension maintaining and clamping device for cable stranding processing proposed in this invention. Figure 4 This is an exploded view of the tensioning mechanism and the clamping mechanism in the conductor tension maintenance and clamping device for cable stranding proposed in this invention. Figure 5 For the present invention Figure 4 A magnified structural diagram of point A in the middle.

[0015] In the diagram: 1-Mounting column, 2-Tensioning mechanism, 21-Mounting plate, 211-Open slot, 212-First connecting shaft, 22-First roller, 23-Second roller, 24-Third roller, 3-Cylinder, 4-Connecting ring, 5-Wire, 6-Transmission rod, 7-Linkage rod, 8-Clamping mechanism, 81-Mounting bracket, 82-Rectangular slot, 83-First clamping wheel, 84-First slider, 85-Second clamping wheel, 86-Second slider, 861-Second connecting shaft, 87-First elastic element, 9-Second elastic element. Detailed Implementation

[0016] 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.

[0017] Example 1 like Figures 1-5 As shown, this embodiment provides a conductor tension maintaining and clamping device for cable stranding processing, including: Mounting column 1; Multiple tensioning mechanisms 2 are arranged in a circular array around the axis of the mounting column 1. Each tensioning mechanism 2 includes a swingable mounting plate 21 and a set of guide wheels mounted on the mounting plate 21. Multiple clamping mechanisms 8 are provided in a one-to-one correspondence with multiple tensioning mechanisms 2. Each clamping mechanism 8 includes a first clamping wheel 83 and a second clamping wheel 85 arranged opposite to each other. The second clamping wheel 85 is slidably mounted to change the clamping gap with the first clamping wheel 83. The clamping mechanism 8 is located on one side near the twisted end of the wire 5. The connecting ring 4 is coaxially sleeved on the outer side of the mounting post 1 and can slide along the axial direction of the mounting post 1; A driving component is fixedly connected between the mounting post 1 and the connecting ring 4, and is used to drive the connecting ring 4 to slide axially. Multiple transmission rods 6, one end of each transmission rod 6 is hinged to the mounting plate 21 of the corresponding tensioning mechanism 2, and the other end of each transmission rod 6 is hinged to the connecting ring 4; Multiple linkage groups, each linkage group being connected between the mounting plate 21 of the corresponding tensioning mechanism 2 and the second clamping wheel 85 of the corresponding clamping mechanism 8; The wire 5 is wound around the guide wheel assembly and passes through the clamping gap; When the driving component drives the connecting ring 4 to slide along the first direction, the transmission rod 6 drives the mounting plate 21 to swing to tension the wire 5. At the same time, the mounting plate 21 drives the second clamping wheel 85 to move toward the first clamping wheel 83 through the linkage rod group to clamp the wire 5. When the connecting ring 4 slides along the second direction opposite to the first direction, the second clamping wheel 85 moves away from the first clamping wheel 83 to release the wire 5.

[0018] Overall, it includes a mounting column 1, multiple tensioning mechanisms 2, multiple clamping mechanisms 8, a connecting ring 4, a driving component, multiple transmission rods 6, and multiple linkage rod groups; among them, the mounting column 1 is the overall mounting base of the device, made of metal, and its axis is set in the horizontal direction to facilitate the wire 5 to enter the stranding end in the horizontal direction.

[0019] Multiple tensioning mechanisms 2 are arranged in a circular array around the axis of the mounting column 1, and the number matches the number of conductors 5 required for cable stranding (usually 3-6 conductors). Each tensioning mechanism 2 includes a swingable mounting plate 21 and a guide wheel assembly mounted on the mounting plate 21. The mounting plate 21 is made of high-strength alloy plate and has sufficient structural strength to withstand the tension of the conductors 5. The guide wheel assembly is made of wear-resistant rubber material and has anti-slip texture on the surface to avoid tension fluctuations caused by the slippage of the conductors 5.

[0020] Multiple clamping mechanisms 8 are arranged in a one-to-one correspondence with multiple tensioning mechanisms 2. Each clamping mechanism 8 includes a first clamping wheel 83 and a second clamping wheel 85 arranged opposite to each other. The second clamping wheel 85 is slidably installed to change the clamping gap between it and the first clamping wheel 83. The clamping mechanism 8 is arranged on the side close to the stranded end of the wire 5 to ensure that the wire 5 is always in a stable clamped and tensioned state before entering the stranded end.

[0021] The connecting ring 4 is coaxially sleeved on the outer side of the mounting column 1. It adopts a ring structure and a sliding bearing is set between it and the mounting column 1 to ensure that the connecting ring 4 can slide smoothly along the axial direction of the mounting column 1, thereby reducing the impact of sliding friction on the load of the driving component.

[0022] The driving component is fixedly connected between the mounting post 1 and the connecting ring 4, and is used to drive the connecting ring 4 to slide axially. In this embodiment, the driving component can be any one of the following: cylinder 3, hydraulic cylinder or electric push rod. Cylinder 3 is preferred because it has a fast response speed and high control accuracy, and is suitable for realizing the dynamic adjustment of the tension of the wire 5.

[0023] Multiple transmission rods 6 correspond one-to-one with the tensioning mechanism 2. One end of each transmission rod 6 is hinged to the mounting plate 21 of the corresponding tensioning mechanism 2, and the other end of each transmission rod 6 is hinged to the connecting ring 4. The transmission rod 6 adopts a rigid connecting rod structure, and a bearing is set at the hinge to ensure that there is no jamming during the transmission process, so as to realize the synchronous transmission of the sliding of the connecting ring 4 and the swing of the mounting plate 21.

[0024] Multiple linkage groups correspond one-to-one with the tensioning mechanism 2 and the clamping mechanism 8. Each linkage group is connected between the mounting plate 21 of the corresponding tensioning mechanism 2 and the second clamping wheel 85 of the corresponding clamping mechanism 8. The linkage groups also adopt rigid connecting rods to ensure that the swinging motion of the mounting plate 21 can be quickly transmitted to the second clamping wheel 85, so as to realize the synchronous linkage of tensioning and clamping.

[0025] The winding path of conductor 5 is as follows: it passes around the guide wheel group and through the clamping gap, and finally enters the stranding end; the guide wheel group plays a guiding and supporting role for conductor 5, and the clamping mechanism 8 plays a clamping and tension maintaining role for conductor 5.

[0026] In the initial state (threading or non-working state): the connecting ring 4 is at the starting position of its axial sliding stroke; at this time, the mounting plate 21, which is hinged to the connecting ring 4 through the transmission rod 6, is in a non-swinging state, and the tensioning mechanism 2 does not apply tension to the wire 5; at the same time, the linkage group is not subjected to the tension generated by the swing of the mounting plate 21, the second clamping wheel 85 is in a position away from the first clamping wheel 83, and the clamping gap is in the maximum state, which makes it convenient for the operator to pass the wire 5 through the guide wheel group and the clamping gap in sequence.

[0027] In working state (clamping and tensioning of wire 5): When stranding is required, the drive unit moves, driving the connecting ring 4 to slide axially in the first direction (towards the tensioning mechanism 2); the sliding of the connecting ring 4 drives each mounting plate 21 to swing synchronously through multiple transmission rods 6; when the mounting plate 21 swings, the guide wheel group on the mounting plate 21 changes the wrap angle and pressure on the wire 5, thereby applying tension to the wire 5; at the same time, the swing of the mounting plate 21 drives the second clamping wheel 85 to move towards the first clamping wheel 83 through the linkage rod group, reducing the clamping gap, and finally clamping the wire 5.

[0028] Release state (stop or wire reel replacement): When it is necessary to stop processing, replace the wire reel, or perform maintenance, the drive unit drives the connecting ring 4 to slide in a second direction opposite to the first direction; the mounting plate 21 swings in the opposite direction to release the tension on the wire 5; the linkage group removes the force on the second clamping wheel 85, the second clamping wheel 85 moves away from the first clamping wheel 83, the clamping gap increases, and the wire 5 is released.

[0029] Through the cooperation of the driving component, transmission rod 6, and linkage rod group, the mechanical linkage between the tensioning mechanism 2 and the clamping mechanism 8 is realized. A single driving component can simultaneously drive multiple tensioning mechanisms 2 and clamping mechanisms 8 to operate synchronously, ensuring the synchronization of tensioning and clamping of all conductors 5. The structure is compact and easy to control. The clamping mechanism 8 is located on the side close to the stranding end, which can reduce the tension loss of conductors 5 before the stranding end and initially isolate the influence of tension fluctuations at the pay-off end on the stranding end. After the pay-off reel has finished paying off the conductors 5, the clamping mechanism 8 can maintain the clamping of the tail wire to prevent the tail wire from slack, which to a certain extent ensures the tension consistency of multiple conductors 5 and reduces the quality problems of the conductors after stranding.

[0030] Furthermore, each of the tensioning mechanisms 2 has a mounting plate 21 with a first end and a second end. The first end is hinged to the side wall of the mounting column 1 via a first mounting shaft. The guide wheel assembly includes a first roller 22, a second roller 23, and a third roller 24. The first roller 22, the second roller 23, and the third roller 24 are rotatably mounted on the mounting plate 21, and the axes of the first roller 22, the second roller 23, and the third roller 24 are all parallel to the axis of the first mounting shaft. The mounting plate 21 is also provided with an opening slot 211 for the wire 5 to pass through.

[0031] Example 2 like Figures 1-4 As shown, based on Example 1, this example optimizes the tensioning mechanism 2, and the specific structure is as follows: Each tensioning mechanism 2 has a mounting plate 21 with a first end and a second end. The first end is hinged to the side wall of the mounting column 1 via a first mounting shaft. The mounting plate 21 can swing freely around the first mounting shaft. Wear-resistant bearings are provided at the hinge to reduce friction loss during the swinging process. The guide wheel group includes a first roller 22, a second roller 23, and a third roller 24. The first roller 22, the second roller 23, and the third roller 24 are rotatably mounted on the mounting plate 21 via rotating shafts, and the axes of the three are parallel to the axis of the first mounting shaft to ensure that the wire 5 will not deviate when it passes through. The mounting plate 21 is also provided with an opening slot 211 for the wire 5 to pass through. The width of the opening slot 211 is greater than the diameter of the wire 5 to facilitate the passage of the wire 5.

[0032] Based on Example 1, this embodiment further optimizes the winding and tensioning effect of the wire 5: When the wire 5 winds around the guide wheel group, it contacts the first roller 22, the second roller 23, and the third roller 24 in sequence. The three rollers form a triangular distribution, which increases the contact area between the wire 5 and the guide wheel group, improves the stability of the tension force, and prevents the wire 5 from slipping during the tensioning process. The setting of the opening slot 211 allows the wire 5 to pass through the mounting plate 21 stably, ensuring the stability of the wrap angle of the guide wheel group on the wire 5, and further improving the accuracy of tension adjustment.

[0033] By further optimizing the structure of the tensioning mechanism 2, the triangular distribution of the three rollers increases the contact area between the wire 5 and the guide wheel assembly, improving the stability and adjustment accuracy of the tension force; the mounting plate 21 is hinged through the first mounting shaft, allowing for flexible swinging, reducing mechanical wear, and extending the service life of the device.

[0034] Further, each clamping mechanism 8 includes a mounting bracket 81 fixedly mounted on the outer side of the mounting post 1, two first sliders, two second sliders 86, a first clamping wheel 83, a second clamping wheel 85, and two first elastic elements 87; the mounting bracket 81 has two rectangular slots spaced apart, both of which extend radially along the first mounting shaft; each rectangular slot contains one first slider and one second slider 86 slidably disposed therein; the two ends of the first clamping wheel 83 are rotatably connected to the two first sliders respectively, and the two ends of the second clamping wheel 85 are rotatably connected to the two first sliders respectively. The second slider 86 is rotatably connected; each of the rectangular slots is provided with a first elastic element 87, one end of each first elastic element 87 is connected to the inner wall of the corresponding rectangular slot, and the other end of each first elastic element 87 is connected to the end of the corresponding first slider away from the second slider 86; the second clamping wheel 85 can slide along the rectangular slot with the second slider 86; the clamping gap is formed between the first clamping wheel 83 and the second clamping wheel 85; the axes of the first clamping wheel 83 and the second clamping wheel 85 are both parallel to the axis of the first mounting shaft.

[0035] Example 3 like Figures 4-5 As shown, based on Embodiment 2, this embodiment optimizes the clamping mechanism 8, and the specific structure is as follows: Each clamping mechanism 8 includes a mounting bracket 81 fixedly mounted on the outer side of the mounting post 1, two first sliders, two second sliders 86, a first clamping wheel 83, a second clamping wheel 85, and two first elastic elements 87. The mounting bracket 81 is made of metal sheet and is fixedly welded to the outer side of the mounting post 1, providing a mounting base for other components of the clamping mechanism 8. Two rectangular slots are spaced apart on the mounting bracket 81, and both rectangular slots extend radially along the first mounting axis. The inner wall of the rectangular slots is provided with a smooth coating to reduce friction when the sliders slide.

[0036] Each rectangular slot contains a first slider and a second slider 86, both of which have a rectangular structure that matches the rectangular slot to ensure smooth sliding and prevent rotation. The two ends of the first clamping wheel 83 are rotatably connected to the two first sliders via rotating shafts, and the two ends of the second clamping wheel 85 are rotatably connected to the two second sliders 86 via rotating shafts. Both the first clamping wheel 83 and the second clamping wheel 85 are made of wear-resistant rubber and have arc-shaped grooves on their surfaces to match the shape of the wire 5 and prevent damage to the wire 5 during clamping.

[0037] Each rectangular groove is provided with a first elastic element 87, preferably a compression spring. One end of the first elastic element 87 is connected to the inner wall of the corresponding rectangular groove, and the other end is connected to the end of the corresponding first slider that is away from the second slider 86. The second clamping wheel 85 can slide along the rectangular groove with the second slider 86. A clamping gap is formed between the first clamping wheel 83 and the second clamping wheel 85. The axes of the first clamping wheel 83 and the second clamping wheel 85 are both parallel to the axis of the first mounting shaft to ensure that the wire 5 is clamped with uniform force.

[0038] The clamping effect has been further optimized. When the mounting plate 21 swings and drives the second slider 86 to move along the rectangular groove towards the first clamping wheel 83 via the linkage rod group, the second clamping wheel 85 moves synchronously and cooperates with the first clamping wheel 83 to clamp the wire 5. At this time, the first slider is subjected to the reaction force of the wire 5, which compresses the first elastic element 87. The elastic force generated by the first elastic element 87 acts on the first slider, causing the first clamping wheel 83 to apply reverse pressure to the wire 5, further improving the clamping effect. At the same time, the elastic effect of the first elastic element 87 can realize flexible compensation during the clamping process, avoiding rigid impact damage to the wire 5.

[0039] By further optimizing the structure of the clamping mechanism 8, the arrangement of two first sliders and two second sliders 86 makes the installation of the first clamping wheel 83 and the second clamping wheel 85 more stable and the sliding smoother. The arrangement of the first elastic element 87 realizes flexible compensation of the clamping force, avoiding damage to the wire 5 by rigid clamping, and can automatically adjust the clamping force according to the tension change of the wire 5, thereby improving the stability of clamping. The arc-shaped groove design of the first clamping wheel 83 and the second clamping wheel 85 is adapted to the shape of the wire 5, increasing the contact area, further improving the clamping reliability, and effectively isolating the tension fluctuation at the wire release end.

[0040] Furthermore, the driving component is a cylinder 3, the cylinder body of the cylinder 3 is fixedly connected to the outer side of the mounting post 1, and the piston rod of the cylinder 3 is fixedly connected to the connecting ring 4.

[0041] Example 4 like Figures 3-4 As shown, based on Embodiment 3, this embodiment optimizes the driving component, and the specific structure is as follows: The driving component is cylinder 3. The cylinder body of cylinder 3 is fixedly connected to the outer side of mounting column 1 through a bracket. The piston rod of cylinder 3 is fixedly connected to connecting ring 4 through a flange. Cylinder 3 is an adjustable speed cylinder. It can adjust the sliding speed and displacement of connecting ring 4 according to the process requirements of cable stranding, thereby adjusting the tension and clamping force of wire 5. Cylinder 3 is connected to an external air circuit system. The air circuit system is equipped with a pressure regulating valve and a flow control valve to achieve precise control of the movement of cylinder 3.

[0042] By further improving control precision, the extension length and speed of the piston rod of cylinder 3 can be precisely controlled by adjusting the pressure and flow of the air circuit system, thereby controlling the sliding distance and speed of the connecting ring 4. The sliding of the connecting ring 4 drives the mounting plate 21 to swing through the transmission rod 6, realizing continuous adjustment of the tension force. At the same time, the swing of the mounting plate 21 drives the second slider 86 to move through the linkage rod group, realizing synchronous and continuous adjustment of the clamping force, meeting the tension requirements of different specifications of cable stranding.

[0043] By selecting cylinder 3 as the driving component, the response speed is fast and the control precision is high, enabling continuous adjustment of tension and clamping force, and adapting to cable stranding processing of different specifications and process requirements; the installation method of cylinder 3 is stable and reliable, and the connection with connecting ring 4 is firm, ensuring stable power transmission during the driving process and reducing the occurrence of mechanical failures; the air circuit system is easy and quick to adjust, allowing operators to adjust parameters according to the actual processing conditions and improve processing efficiency.

[0044] Furthermore, one end of each of the transmission rods 6 is hinged to the second end of the mounting plate 21 via a second mounting shaft, and the other end of each of the transmission rods 6 is hinged to the outer side of the connecting ring 4 via a third mounting shaft; the axes of the second mounting shaft and the third mounting shaft are both parallel to the axis of the first mounting shaft.

[0045] Example 5 like Figures 3-4 As shown, based on Example 4, this example optimizes the transmission rod 6, and the specific structure is as follows: One end of each transmission rod 6 is hinged to the second end of the mounting plate 21 via a second mounting shaft, and the other end of each transmission rod 6 is hinged to the outer side of the connecting ring 4 via a third mounting shaft; the axes of the second and third mounting shafts are parallel to the axis of the first mounting shaft, ensuring that the swing direction of the transmission rod 6 is consistent with the swing direction of the mounting plate 21, avoiding lateral force during transmission and reducing mechanical loss.

[0046] Both the second and third mounting shafts use high-strength pins, and rolling bearings are installed at the hinges to reduce frictional resistance during transmission and ensure smooth transmission. Dust covers are installed at the hinges of the transmission rod 6 with the mounting plate 21 and the connecting ring 4 to prevent dust and oil from entering and extend the service life of the hinged parts.

[0047] The transmission effect has been further optimized; when the cylinder 3 drives the connecting ring 4 to slide axially, the connecting ring 4 drives the transmission rod 6 to swing around the third mounting shaft through the third mounting shaft, and the other end of the transmission rod 6 drives the mounting plate 21 to swing around the first mounting shaft through the second mounting shaft; since the axes of the second mounting shaft, the third mounting shaft and the first mounting shaft are parallel, there is no lateral force interference during the transmission process, and the swing angle of the mounting plate 21 is linearly related to the sliding distance of the connecting ring 4, which facilitates the precise adjustment of the tension force.

[0048] By optimizing the hinge structure of the transmission rod 6, the second and third mounting shafts are parallel to the axis of the first mounting shaft, avoiding lateral forces during transmission, reducing mechanical losses, and improving transmission efficiency and stability. The installation of rolling bearings and dust covers further extends the service life of the hinged parts and reduces the maintenance cost of the device. The connection between the transmission rod 6 and the mounting plate 21 and the connecting ring 4 is firm, ensuring reliable power transmission and preventing transmission disconnection.

[0049] Furthermore, each linkage group includes two linkage rods 7; the first end of each linkage rod 7 is hinged to the first connecting shaft 212 provided on the corresponding mounting plate 21, and the second end of each linkage rod 7 is hinged to the second connecting shaft 861 provided on the corresponding second slider 86; the axes of the first connecting shaft 212 and the second connecting shaft 861 are both parallel to the axis of the first mounting shaft.

[0050] Example 6 like Figures 3-4 As shown, based on Example 5, this example optimizes the linkage assembly, and the specific structure is as follows: Each linkage assembly includes two linkage rods 7, which are respectively set to two second sliders 86. The first end of each linkage rod 7 is hinged to the first connecting shaft 212 set on the corresponding mounting plate 21, and the second end of each linkage rod 7 is hinged to the second connecting shaft 861 set on the corresponding second slider 86. The axes of the first connecting shaft 212 and the second connecting shaft 861 are both parallel to the axis of the first mounting shaft, ensuring that the swing direction of the linkage rod 7 is compatible with the swing direction of the mounting plate 21 and the sliding direction of the second slider 86, so as to realize the smooth transmission of power.

[0051] The first connecting shaft 212 is fixedly installed in the middle of the mounting plate 21, and the second connecting shaft 861 is fixedly installed on the outer side wall of the second slider 86. The linkage rod 7 adopts the same rigid linkage structure as the transmission rod 6, and the hinge is also equipped with rolling bearings and dust covers to ensure smooth and reliable linkage process.

[0052] The linkage effect has been further optimized; when the mounting plate 21 swings around the first mounting shaft, the first connecting shaft 212 on the mounting plate 21 drives the linkage rod 7 to swing around the first connecting shaft 212, and the other end of the linkage rod 7 drives the second slider 86 to slide along the rectangular groove through the second connecting shaft 861; since the two linkage rods 7 drive the two second sliders 86 to slide synchronously, it ensures that the two ends of the second clamping wheel 85 move synchronously, avoids the second clamping wheel 85 tilting and causing uneven force on the wire 5, and further improves the stability of clamping.

[0053] By using two linkage rods to form a linkage group, the second slider 86 is driven to slide synchronously, ensuring that the two ends of the second clamping wheel 85 are evenly stressed and move synchronously, avoiding damage to the wire 5 or tension fluctuations due to uneven clamping; the hinge structure of the linkage rod 7 is reasonable and the power transmission is smooth, further improving the linkage coordination between the tensioning mechanism 2 and the clamping mechanism 8, ensuring the synchronous adjustment of tension force and clamping force, and improving the working stability of the device.

[0054] Furthermore, the winding path of the wire 5 in the device is as follows: around the first roller 22, through the opening slot 211, through the clamping gap, around the second roller 23, and finally around the third roller 24.

[0055] Example 7 like Figures 1-4 As shown, based on Example 6, this example optimizes the bypass path of conductor 5, and the specific structure is as follows: The winding path of the wire 5 in the device is as follows: it passes around the first roller 22, through the opening slot 211, through the clamping gap, around the second roller 23, and finally around the third roller 24. The first roller 22, the second roller 23, and the third roller 24 are arranged in a triangle. The first roller 22 is located on one side of the mounting plate 21, and the second roller 23 and the third roller 24 are located on the other side of the mounting plate 21. The opening slot 211 is located between the first roller 22 and the second roller 23, and the clamping mechanism 8 is located between the opening slot 211 and the second roller 23, ensuring that the winding path of the wire 5 is reasonable and that the tensioning and clamping actions do not interfere with each other.

[0056] By further optimizing the tension transmission of the conductor 5, the conductor 5 sequentially passes around the first roller 22, through the opening slot 211, through the clamping gap, around the second roller 23, and around the third roller 24, forming a multi-segment contact path, which increases the contact area between the conductor 5 and the guide wheel assembly and improves the transmission efficiency of tension force; at the same time, the clamping mechanism 8 is located in the middle position of the guide wheel assembly, which can clamp the conductor 5 while it is being tensioned, ensuring that the tension of the conductor 5 is stable throughout the entire winding process and further reducing tension fluctuations.

[0057] By optimizing the bypass path of conductor 5, the multi-segment contact bypass method improves the stability and transmission efficiency of tension force and reduces tension loss caused by conductor 5 slippage; the reasonable design of the bypass path ensures that the actions of tensioning mechanism 2 and clamping mechanism 8 do not interfere with each other, ensuring the coordination of the device operation; at the same time, the contact length of conductor 5 in the device can be further extended, which is conducive to the stable maintenance of tension and improves the cable stranding quality.

[0058] Furthermore, it also includes two second elastic elements 9, which are arranged one-to-one with two second sliders 86; one end of each second elastic element 9 is connected to the inner wall of the corresponding rectangular groove, and the other end of each second elastic element 9 is connected to the end of the corresponding second slider 86 away from the first slider.

[0059] The second elastic element 9 provides a certain buffering effect and also provides a restoring force when the linkage 7 moves to the dead point.

[0060] Example 8 like Figures 4-5 As shown, this embodiment adds a second elastic element 9 based on embodiment 3, and the specific structure is as follows: The device also includes two second elastic elements 9, which are arranged one-to-one with two second sliders 86. One end of each second elastic element 9 is connected to the inner wall of the corresponding rectangular groove, and the other end of each second elastic element 9 is connected to the end of the corresponding second slider 86 away from the first slider. The second elastic elements 9 are preferably tension springs, which are in a naturally extended state at their initial state. When the second slider 86 moves toward the first clamping wheel 83, the second elastic element 9 is stretched, generating a reverse pulling force, which plays a buffering and resetting role on the second slider 86.

[0061] The working process of this embodiment is based on that of embodiment 3, with the addition of an automatic clamping force switching function, as detailed below: Mode 1: When the wire feeding reel has not finished feeding the wire 5 (in the process of feeding): While the brake or tension controller of the wire feeding reel provides the feeding tension, the cylinder 3 drives the connecting ring 4 to slide to the appropriate position, and drives the mounting plate 21 to swing through the transmission rod 6, applying tension to the wire 5; at the same time, the mounting plate 21 pulls the second slider 86 through the linkage rod group, so that the second slider 86 overcomes the elastic force of the second elastic element 9 and moves along the rectangular groove towards the first clamping wheel 83. The second clamping wheel 85 moves synchronously and clamps the wire 5 with the first clamping force; at this time, the first elastic element 87 is in a compressed state, and the first clamping wheel 83 slides synchronously with the first slider. The clamping mechanism 8 isolates the tension fluctuation at the feeding end from the tension requirement at the twisting end.

[0062] A pressure sensor can be installed on the first clamping wheel 83 to keep the first clamping force within a preset range.

[0063] Mode 2: After the wire 5 is completely released from the wire release reel (tail wire stage): When the wire 5 on a certain wire release reel is completely released, the wire release reel no longer provides wire tension; at this time, the cylinder 3 keeps the connecting ring 4 in the same position, and the clamping mechanism 8 is still in the clamping state; since the tension at the wire release end disappears, the tension of the wire at the position of the clamping mechanism 8 also disappears. Since the tension of the wire 5 and the elastic force of the first elastic element 87 are action and reaction forces when the wire release end tension disappears, the first elastic element 87 resets and pushes the first slider to move towards the second clamping wheel 85. At this time, the position of the second clamping wheel 85 remains unchanged, so that the clamping mechanism 8 clamps the tail wire with a second clamping force greater than the first clamping force; at this time, the clamping mechanism 8 replaces the original wire release end to provide tension and maintains the tension of the tail wire.

[0064] Release state: When it is necessary to release the wire 5, the cylinder 3 drives the connecting ring 4 to slide in the opposite direction, the mounting plate 21 swings in the opposite direction, the linkage group removes the pulling force on the second slider 86, the second slider 86 automatically resets under the pulling force of the second elastic element 9, moves away from the first clamping wheel 83, and releases the wire 5.

[0065] By adding a second elastic element 9, automatic switching of clamping force is achieved. During the wire feeding process, the wire 5 is clamped with a smaller first clamping force, which ensures the stability of the wire 5 and avoids damage to the wire 5 due to excessive clamping. After the wire feeding is completed, it automatically switches to a larger second clamping force to replace the wire feeding end in maintaining the tension of the tail wire, effectively preventing the tail wire from slack and ensuring the tension consistency of multiple wires 5. The second elastic element 9 also plays a reset role, which facilitates the quick release of the wire 5 when the device stops or changes wires, improving the convenience of operation. At the same time, it further enhances the flexibility compensation capability of the clamping mechanism 8, improving the working stability and reliability of the device.

[0066] Of course, for those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention; therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the invention; no reference numerals in the claims should be regarded as limiting the claims involved.

[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0068] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A conductor tension maintaining and clamping device for cable stranding processing, characterized in that, include: Mounting column (1); Multiple tensioning mechanisms (2) are arranged in a circular array around the axis of the mounting column (1). Each tensioning mechanism (2) includes a swingable mounting plate (21) and a set of guide wheels mounted on the mounting plate (21). Multiple clamping mechanisms (8) are provided in a one-to-one correspondence with multiple tensioning mechanisms (2). Each clamping mechanism (8) includes a first clamping wheel and a second clamping wheel arranged opposite to each other. The second clamping wheel is slidably mounted to change the clamping gap between it and the first clamping wheel. The clamping mechanism (8) is located on one side near the twisted end of the wire (5). The connecting ring (4) is coaxially sleeved on the outer side of the mounting post (1) and can slide along the axial direction of the mounting post (1); A driving component is fixedly connected between the mounting post (1) and the connecting ring (4) for driving the connecting ring (4) to slide axially; Multiple transmission rods (6), one end of each transmission rod (6) is hinged to the mounting plate (21) of the corresponding tensioning mechanism (2), and the other end of each transmission rod (6) is hinged to the connecting ring (4); Multiple linkage groups, each linkage group being connected between the mounting plate (21) of the corresponding tensioning mechanism (2) and the second clamping wheel of the corresponding clamping mechanism (8); The conductor (5) passes around the guide wheel assembly and through the clamping gap; When the driving member drives the connecting ring (4) to slide along the first direction, the transmission rod (6) drives the mounting plate (21) to swing to tension the wire (5). At the same time, the mounting plate (21) drives the second clamping wheel to move toward the first clamping wheel through the linkage rod group to clamp the wire (5). When the connecting ring (4) slides along the second direction opposite to the first direction, the second clamping wheel moves away from the first clamping wheel to release the wire (5).

2. The conductor tension maintaining and clamping device for cable stranding processing according to claim 1, characterized in that, Each of the tensioning mechanisms (2) has a mounting plate (21) with a first end and a second end. The first end is hinged to the side wall of the mounting column (1) via a first mounting shaft. The guide wheel assembly includes a first roller (22), a second roller (23), and a third roller (24). The first roller (22), the second roller (23), and the third roller (24) are rotatably mounted on the mounting plate (21), and the axes of the first roller (22), the second roller (23), and the third roller (24) are all parallel to the axis of the first mounting shaft. The mounting plate (21) is also provided with an opening slot (211) for the wire (5) to pass through.

3. The conductor tension maintaining and clamping device for cable stranding processing according to claim 2, characterized in that, Each clamping mechanism (8) includes a mounting bracket (81) fixedly mounted on the outer side of the mounting post (1), two first sliders, two second sliders (86), a first clamping wheel, a second clamping wheel, and two first elastic elements (87); the mounting bracket (81) has two rectangular slots spaced apart, both of which extend radially along the first mounting shaft; each of the rectangular slots has one first slider and one second slider (86) slidably disposed in each of the rectangular slots; the two ends of the first clamping wheel are rotatably connected to the two first sliders respectively, and the two ends of the second clamping wheel are rotatably connected to the two first sliders respectively. The second slider (86) is rotatably connected; each of the rectangular slots is provided with a first elastic element (87), one end of each first elastic element (87) is connected to the inner wall of the corresponding rectangular slot, and the other end of each first elastic element (87) is connected to the end of the corresponding first slider away from the second slider (86); the second clamping wheel can slide along the rectangular slot with the second slider (86); the clamping gap is formed between the first clamping wheel and the second clamping wheel; the axes of the first clamping wheel and the second clamping wheel are both parallel to the axis of the first mounting shaft.

4. The conductor tension maintaining and clamping device for cable stranding processing according to claim 3, characterized in that, The driving component is a cylinder (3), the cylinder body of the cylinder (3) is fixedly connected to the outer side of the mounting post (1), and the piston rod of the cylinder (3) is fixedly connected to the connecting ring (4).

5. The conductor tension maintaining and clamping device for cable stranding processing according to claim 4, characterized in that, One end of each of the transmission rods (6) is hinged to the second end of the mounting plate (21) via a second mounting shaft, and the other end of each of the transmission rods (6) is hinged to the outer side of the connecting ring (4) via a third mounting shaft; the axes of the second mounting shaft and the third mounting shaft are both parallel to the axis of the first mounting shaft.

6. The conductor tension maintaining and clamping device for cable stranding processing according to claim 5, characterized in that, Each linkage group includes two linkage rods (7); the first end of each linkage rod (7) is hinged to the first connecting shaft (212) provided on the corresponding mounting plate (21), and the second end of each linkage rod (7) is hinged to the second connecting shaft (861) provided on the corresponding second slider (86); the axes of the first connecting shaft (212) and the second connecting shaft (861) are both parallel to the axis of the first mounting shaft.

7. The conductor tension maintaining and clamping device for cable stranding processing according to claim 6, characterized in that, The wire (5) travels in the device in the following order: around the first roller (22), through the opening slot (211), through the clamping gap, around the second roller (23), and finally around the third roller (24).

8. The conductor tension maintaining and clamping device for cable stranding processing according to claim 3, characterized in that, It also includes two second elastic elements (9), which are arranged one-to-one with two second sliders (86); one end of each second elastic element (9) is connected to the inner wall of the corresponding rectangular groove, and the other end of each second elastic element (9) is connected to the end of the corresponding second slider (86) away from the first slider.

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