Wire stranding equipment

Abstract

The invention discloses a wire stranding device, which relates to the field of wire stranding, comprises a support, and is characterized in that a slide rail is fixed on the support, a slide seat slides on the slide rail, a first fixing mechanism is arranged on the slide seat, a second fixing mechanism is arranged above the support, and the second fixing mechanism is arranged above the support. The first fixing mechanism and the second fixing mechanism are respectively used for fixing two ends of a to-be-stranded wire, a mounting rack is fixed on the support, a driving part is mounted on the mounting rack, an output end of the driving part is fixed with the second fixing mechanism, and the driving part drives the second fixing mechanism to rotate so as to realize wire stranding. A length adjusting mechanism is installed on the support and drives the sliding seat to move on the sliding rail so as to adjust the stranding length of the wire rod. The device has the effects of conveniently fixing the wire, adjusting the length of the stranded wire, compensating the length change of the wire during wire stranding, detecting the state of the stranded wire and controlling the motor to stop working.

Description

Technical Field

[0001] This application relates to the field of stranded wires, and more particularly to a stranded wire device. Background Technology

[0002] Stranding is a fundamental process in which multiple monofilaments or strands are twisted together in a specific direction (such as clockwise or counterclockwise) to form a single conductor. This process is widely used in many industrial fields, including wire and cable, metal ropes, textile cables, and composite reinforcing fibers. Stranded wires possess better flexibility, resistance to bending fatigue, stability, and overall mechanical properties; therefore, stranding equipment is a key piece of equipment in the cable manufacturing industry.

[0003] In existing technologies, traditional stranding machines employ a fixed structure, where one spool or fixed point remains in a fixed position while the other rotates to achieve stranding. After completing a specific length of stranding, changing the stranding length often requires replacing components of different specifications. This adjustment process is time-consuming and labor-intensive, reducing production efficiency. Summary of the Invention

[0004] To address the problem that traditional stranding machines require replacing different parts of varying specifications after stranding a specific length of wire, which is time-consuming, labor-intensive, and reduces production efficiency if the stranding length of the wire to be stranded is changed, this application provides a stranding device.

[0005] The stranding device provided in this application adopts the following technical solution: A stranding device includes a support frame, a slide rail fixed on the support frame, a slide block sliding on the slide rail, a first fixing mechanism on the slide block, and a second fixing mechanism above the support frame. The first and second fixing mechanisms are respectively used to fix the two ends of the wire to be stranded. A mounting bracket is fixed on the support frame, and a driving component is mounted on the mounting bracket. The output end of the driving component is fixed to the second fixing mechanism, and the driving component drives the second fixing mechanism to rotate to achieve stranding. A length adjustment mechanism is mounted on the support frame, and the length adjustment mechanism drives the slide block to move on the slide rail to adjust the stranding length of the wire.

[0006] By adopting the above technical solution, the two ends of the wire to be stranded are fixed by the first fixing mechanism and the second fixing mechanism, the driving component drives the second fixing mechanism to rotate to realize the stranding of the wire to be stranded, and the length adjustment mechanism drives the slide to move on the slide rail to realize the adjustment of the strand length of the wire to be stranded.

[0007] Optionally, it also includes a controller. The first fixing mechanism includes a first connecting plate, a first cylinder, a fixing block, and a limiting plate. The first connecting plate is fixed on the slide block. The first cylinder is mounted on the first connecting plate. The fixing block is fixed on the slide block. The piston rod of the first cylinder is fixed to the limiting plate. The limiting plate slides on the slide block for laterally pressing the wire to be stranded. The first cylinder is electrically connected to the controller.

[0008] By adopting the above technical solution, the clamping and releasing of the wire is automated by using a controller to drive the first cylinder. The limiting plate and the fixing block cooperate to clamp the wire laterally, effectively preventing the wire from slipping or coming loose during the stranding process, ensuring the stability of the stranding quality, and reducing the labor intensity of the operators.

[0009] Optionally, the second fixing mechanism includes a mounting base, an arc-shaped block, and a locking block. The mounting base is fixed on the output end of the drive component. The arc-shaped block is located between the mounting base and the locking block and is fixed on the mounting base. The locking block is disposed on the arc-shaped block. The two ends of the arc-shaped block form steps with the mounting base and the locking block, respectively. The steps facilitate stable winding of the coil. The locking block is provided with a groove for locking the coil.

[0010] By adopting the above technical solution, the arc-shaped block, the clamping block, and the mounting base together form a stable winding station. The wire passes through the groove on the clamping block and winds around the arc-shaped block, ensuring that the wire is subjected to uniform force and tightly wound during rotation and twisting. The stepped structure prevents the wire from slipping out from the side during high-speed rotation, ensuring the smoothness and safety of the twisting process.

[0011] Optionally, the card block is fixedly connected to the arc-shaped block.

[0012] By adopting the above technical solution, when the driving component drives the second fixing mechanism to rotate, the clamping block, the arc-shaped block and the mounting base rotate synchronously to achieve the twisting of the wire.

[0013] Optionally, the length adjustment mechanism includes a second connecting plate and a second cylinder. The second connecting plate is fixed on the bracket, the second cylinder is mounted on the second connecting plate, the piston rod of the second cylinder is fixed on the slide, and the second cylinder is electrically connected to the controller.

[0014] By adopting the above technical solution, the second cylinder is electrically connected to the controller, driving the slide to move on the slide rail and adjusting the strand length of the wire. This avoids the problem of needing to replace different specifications of parts when changing the strand length in traditional stranding machines, thus improving production efficiency.

[0015] Optionally, the driving component is a servo motor, the mounting bracket has an oblong hole, the servo motor is fixed on the mounting bracket, and the output end of the servo motor passes through the oblong hole and is fixed to the mounting base. The servo motor is electrically connected to the controller.

[0016] By adopting the above technical solution and using a servo motor as the driving component, the rotation of the second fixing mechanism can be precisely controlled, achieving stable wire twisting operation. An oblong hole is provided on the mounting bracket to facilitate adjustment of the servo motor's mounting position.

[0017] Optionally, the fixing block is provided with an elastic cover plate assembly for vertically pressing the wire to be stranded. The elastic cover plate assembly is connected to the piston rod of the first cylinder through a linkage mechanism. When the piston rod of the first cylinder extends or retracts, the linkage mechanism drives the elastic cover plate assembly to move up and down to press or release the wire to be stranded.

[0018] By adopting the above technical solution, the linkage mechanism converts the horizontal movement of the first cylinder into the vertical movement of the elastic cover plate assembly, realizing the automatic vertical clamping while clamping the wire laterally. This bidirectional clamping mechanism greatly enhances the fixing effect on the wire, effectively preventing the wire from jumping or shifting due to torque during stranding, making the stranding more uniform and tight.

[0019] Optionally, the elastic cover assembly includes a cover body, a first elastic element, and an arc-shaped protrusion. The cover body has an installation groove, the first elastic element is located in the installation groove, and the arc-shaped protrusion slides vertically on the installation groove. The two ends of the first elastic element are fixed to the inner wall of the installation groove and the arc-shaped protrusion, respectively.

[0020] By adopting the above technical solution, the arc-shaped protrusion applies a flexible vertical pressure to the wire under the action of the first elastic element. This elastic clamping method can effectively limit the displacement of the wire and avoid damaging the wire surface due to excessive pressure.

[0021] Optionally, the linkage mechanism includes a receiving frame, an inclined plate, a connecting plate, and a limiting frame. The receiving frame is fixed on the piston rod of the first cylinder, the inclined plate is fixed on the receiving frame, the connecting plate is fixed on the cover plate body, the bottom end of the connecting plate is inclined and slides on the inclined surface of the inclined plate, the limiting frame is fixed on the fixing block, and the connecting plate slides within the limiting frame.

[0022] By adopting the above technical solution and utilizing the inclined plane transmission principle, the horizontal linear motion of the cylinder piston rod is efficiently and reliably converted into the vertical linear motion of the elastic cover plate assembly.

[0023] Optionally, the locking block slides on the arc-shaped plate, and an elastic adaptive mechanism for compensating for length changes during the stranding of the wires is connected between the arc-shaped plate and the locking block. The elastic adaptive mechanism includes a second elastic element, a slider, and a receiving cavity. The receiving cavity is opened on the arc-shaped block, the second elastic element is disposed in the receiving cavity, the slider slides in the receiving cavity, and the slider is fixed to the locking block. The two ends of the second elastic element are respectively fixed to the inner wall of the receiving cavity and the slider.

[0024] By adopting the above technical solution, during the twisting process, the wire will experience a slight length contraction due to twisting. The elastic adaptive mechanism, through the extension and retraction of the first elastic element, causes the locking block and the arc-shaped block to make a slight overall displacement, automatically compensating for this length change and effectively preventing the wire from being overstretched or even broken.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The length adjustment mechanism drives the slide block to move on the slide rail, adjusting the strand length of the wire, avoiding the need to change different specifications of parts to change the strand length, saving time and manpower; 2. When the piston rod of the first cylinder extends or retracts, the linkage mechanism drives the elastic cover plate assembly to move up and down to vertically press or release the wire to be stranded, and drives the limiting plate to move relative to the fixed block to horizontally press or release the stranded wire, thereby achieving effective fixing and releasing of the wire to be stranded. 3. The elastic adaptive mechanism on the second fixing mechanism is used to compensate for the length changes of the wires to be stranded during stranding, ensuring the stability of the stranding process. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an overall schematic diagram of the stranding device provided in Embodiment 1 of this application; Figure 2 This is a structural exploded view of the first fixing mechanism provided in Embodiment 1 of this application; Figure 3 This is provided in Embodiment 1 of this application. Figure 1 Enlarged view of point A in the middle; Figure 4 This is an overall schematic diagram of the stranding device provided in Embodiment 2 of this application; Figure 5 This is a cross-sectional view of the elastic cover plate assembly provided in Embodiment 2 of this application.

[0028] Figure 6 This is a schematic diagram of the linkage mechanism provided in Embodiment 2 of this application; Figure 7 This is a partial schematic diagram of the stranding device provided in Embodiment 3 of this application; Figure 8 This is provided in Embodiment 3 of this application. Figure 7 Enlarged view of point B in the middle.

[0029] Reference numerals: 1. Bracket; 2. Slide rail; 3. Slide seat; 4. First fixing mechanism; 41. First connecting plate; 42. First cylinder; 43. Fixing block; 44. Limiting plate; 5. Second fixing mechanism; 51. Mounting seat; 52. Arc-shaped block; 53. Locking block; 54. Groove; 6. Mounting bracket; 7. Driving component; 8. Length adjustment mechanism; 81. Second connecting plate; 82. Second cylinder; 9. Controller; 10. Waist-shaped hole; 11. Elastic cover plate assembly; 111. Cover plate body; 112. First elastic element; 113. Arc-shaped protrusion; 114. Mounting groove; 12. Linkage mechanism; 121. Receiving frame; 122. Inclined plate; 123. Connecting plate; 124. Limiting frame; 13. Elastic adaptive mechanism; 131. Second elastic element; 132. Slider; 133. Receiving cavity; 14. Tension sensor. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail.

[0031] This application discloses a stranding device. Example

[0032] Reference Figure 1 A stranding device includes a controller 9 and a bracket 1. A slide rail 2 is fixed on the bracket 1, and a slide block 3 slides on the slide rail 2. A first fixing mechanism 4 for fixing one end of the wire to be stranded is provided on the slide block 3.

[0033] Reference Figure 1 A length adjustment mechanism 8, which drives the slide block 3 to slide, is installed on the bracket 1. The length adjustment mechanism 8 includes a second connecting plate 81 and a second cylinder 82. The second connecting plate 81 is fixed to the bracket 1 and serves as the basic support for the entire adjustment mechanism. The second cylinder 82 is mounted on the second connecting plate 81 and serves as the power source for the length adjustment mechanism 8. The piston rod of the second cylinder 82 is fixedly connected to the slide block 3 and electrically connected to the controller 9. Under the command of the controller 9, the second cylinder 82 drives the slide block 3 to move along the slide rail 2.

[0034] Reference Figure 2The first fixing mechanism 4 includes a first connecting plate 41, a first cylinder 42, a fixing block 43, and a limiting plate 44. The first connecting plate 41 and the fixing block 43 are both fixed on the slide 3. The first cylinder 42 is mounted on the first connecting plate 41, and the piston rod of the first cylinder 42 is fixedly connected to the limiting plate 44.

[0035] Reference Figure 1 and Figure 2 The bottom of the limiting plate 44 slides in contact with the upper surface of the slide block 3. The controller 9 is electrically connected to the first cylinder 42, and the controller 9 can control the extension and retraction of the piston rod of the first cylinder 42, thereby driving the limiting plate to move toward or away from the fixed block 43, realizing the lateral clamping or loosening of the wire. A placement groove for placing the wire is provided on the side of the fixed block 43 near the limiting plate 44.

[0036] Reference Figure 1 and Figure 3 A mounting bracket 6 is also fixed on the support 1, and the mounting bracket 6 is provided with a second fixing mechanism 5 for fixing the other end of the wire. The first fixing mechanism 4 and the second fixing mechanism 5 work together to determine and clamp the initial length of the wire to be stranded.

[0037] Reference Figure 1 and Figure 3 The length adjustment mechanism 8 is used to drive the slide block 3 to move on the slide rail 2, thereby changing the distance between the first fixing mechanism 4 and the second fixing mechanism 5, and realizing the adjustment of the stranding length of the wire.

[0038] Reference Figure 1 and Figure 3 A drive component 7 is mounted on the mounting bracket 6. In this embodiment, the drive component 7 is a servo motor. The output end of the servo motor is fixed to the second fixing mechanism 5 to drive its rotation, thereby realizing wire twisting. The controller 9 is electrically connected to the servo motor and controls the start and stop of the drive component 7.

[0039] The number of rotations of the servo motor is input into the controller 9. The controller 9 precisely controls the rotation of the servo motor according to the preset number of rotations, thereby ensuring the accuracy of the second fixing mechanism 5 in driving the wire to be stranded to rotate, and realizing precise stranding operation.

[0040] Reference Figure 3 Additionally, a waist-shaped hole 10 is provided on the mounting bracket 6, and the output end of the servo motor passes through the waist-shaped hole 10 and is fixed to the mounting base 51. The waist-shaped hole 10 allows for some adjustment of the servo motor's mounting position to accommodate installation requirements at different heights.

[0041] Reference Figure 3The second fixing mechanism 5 includes a mounting base 51, an arc-shaped block 52, and a locking block 53. The mounting base 51 is fixed to the output end of the drive unit 7 and can rotate synchronously with the output end of the drive unit 7. The arc-shaped block 52 is fixed to the adjacent side of the mounting base 51 and the locking block 53, and its two ends form a stepped shape with the mounting base 51 and the locking block 53 respectively. This structure helps the wire to fit tightly and prevent slippage.

[0042] Reference Figure 3 A groove 54 is provided on the card block 53. The free end of the wire to be stranded passes through this groove 54 and is wound around the arc block 52. In this embodiment, the top of the arc block 52 is flat and the side wall is curved, so that the wire to be stranded is wound more tightly around the arc block 52.

[0043] In Embodiment 1 of this application, the implementation principle of a stranding device is as follows: The controller 9 controls the second cylinder 82 in the length adjustment mechanism 8. The piston rod of the second cylinder 82 drives the slide block 3 to move along the slide rail 2, thereby changing the distance between the first fixing mechanism 4 and the second fixing mechanism 5 to determine the initial stranding length of the wire. Then, the first fixing mechanism 4 and the second fixing mechanism 5 are used to fix the ends of the wire to be stranded. Finally, the controller 9 controls the servo motor to start, synchronously driving the mounting base 51 to rotate. The mounting base 51 drives the arc-shaped block 52 and the clamping block 53 to rotate, thereby driving the wire to be stranded to rotate, realizing the stranding operation. Example

[0044] The difference between Example 2 and Example 1 is that: (Refer to...) Figure 4 A tension sensor 14 is installed on the fixed block 43 to detect the state of the stranded wire, and the controller 9 is electrically connected to the tension sensor 14. When the value of the tension sensor 14 exceeds the preset value, the controller 9 controls the servo motor to stop working.

[0045] The tension sensor 14 is used to monitor the tension of the wires to be stranded in real time during the stranding process. When the tension exceeds the preset value, it indicates that the wires may be in an abnormal condition, such as being overstretched or stuck. At this time, after receiving the signal from the tension sensor 14, the controller 9 immediately controls the servo motor to stop working to avoid further damage to the wires and equipment.

[0046] Reference Figure 4 To further enhance the fixing effect, an elastic cover plate assembly 11 for vertically pressing the wire is provided above the fixing block 43. The elastic cover plate assembly 11 is connected to the piston rod of the first cylinder 42 through the linkage mechanism 12.

[0047] Reference Figure 5The elastic cover assembly 11 includes a cover body 111, a second elastic element 131, and an arc-shaped protrusion 113. A mounting groove 114 is formed on the cover body 111, and the first elastic element 112 is located within the mounting groove 114. The arc-shaped protrusion 113 slides vertically on the mounting groove 114, and both ends of the first elastic element 112 are fixed to the inner wall of the mounting groove 114 and the arc-shaped protrusion 113, respectively.

[0048] The arc-shaped protrusion 113 applies a flexible vertical pressure to the wire under the action of the second elastic element 131. This elastic clamping method can effectively limit the displacement of the wire and avoid damaging the wire surface due to excessive pressure.

[0049] Reference Figure 4 and Figure 5 When the controller 9 controls the piston rod of the first cylinder 42 to extend, the linkage mechanism 12 drives the elastic cover plate assembly 11 to move downward and press the wire. At this time, the arc-shaped protrusion 113 will be subjected to the reaction force of the wire, thereby compressing the second elastic element 131, thus achieving elastic pressing and avoiding damage to the wire.

[0050] Reference Figure 6 The linkage mechanism 12 includes a receiving frame 121, an inclined plate 122, a connecting plate 123, and a limiting frame 124. The receiving frame 121 is fixed to the piston rod of the first cylinder 42, and the limiting frame 124 is fixed to the fixing block 43. The inclined plate 122 is fixed to the receiving frame 121 and has an upwardly inclined surface. The upper end of the connecting plate 123 is fixed to the cover plate body 111, and the lower end of the connecting plate 123 has an inclined surface that matches the inclined plate 122 and slides on the inclined plate 122.

[0051] Reference Figure 6 In this second embodiment, in order to ensure the stability of the up-and-down movement of the elastic cover assembly 11, two sets of linkage mechanisms 12 are provided, and the two sets of elastic mechanisms are located on both sides of the elastic cover assembly 11.

[0052] When the controller 9 extends the piston rod of the first cylinder 42, it drives the limiting plate 44 away from the fixed block 43, expanding the lateral space. Simultaneously, it causes the receiving frame 121 and the inclined plate 122 to move horizontally in the same direction. The inclined surface of the inclined plate 122 slides relative to the inclined surface of the connecting plate 123, generating an upward thrust that pushes the connecting plate 123 and the elastic cover assembly 11 upward, thereby releasing the vertical pressure on the wire. At this time, there is ample operating space, facilitating the placement of the wire in the placement slot.

[0053] When the piston rod of the first cylinder 42 retracts, it drives the limiting plate 44 to approach the fixing block 43, clamping the wire laterally. Simultaneously, it causes the receiving frame 121 and the inclined plate 122 to move in the same direction. The inclined surface of the inclined plate 122 slides relative to the inclined surface of the connecting plate 123, generating a downward pulling force that pulls the connecting plate 123 and the elastic cover plate assembly 11 downward, thereby achieving elastic compression of the wire. This linkage design achieves automatic coordination of lateral clamping and vertical compression, greatly enhancing the reliability of the fixation. Example

[0054] The difference between Example 3 and Example 2 is that: (Refer to...) Figure 7 and Figure 8 In this third embodiment, the connection between the locking block 53 and the arc-shaped block 52 is that the locking block 53 slides on the arc-shaped block 52. Unlike the second embodiment, the locking block 53 is fixedly connected to the arc-shaped block 52. Since the length of the wire changes during the stranding process, an elastic adaptive mechanism 13 is provided on the arc-shaped block 52 to compensate for the length change of the wire to be stranded during stranding.

[0055] Reference Figure 8 The elastic adaptive mechanism 13 includes a second elastic element 131 and a slider 132. A receiving cavity 133 is formed on the arc-shaped block 52. The second elastic element 131 is disposed within the receiving cavity 133, and the slider 132 is slidably embedded in the receiving cavity 133, and the slider 132 is fixedly connected to the locking block 53. Both ends of the second elastic element 131 are fixed to the inner wall of the receiving cavity 133 and the slider 132, respectively.

[0056] During the stranding process, when the overall length of the wires to be stranded shortens, the wire tension increases, causing the locking block 53 to be subjected to tension. This, in turn, moves the slider 132 within the receiving cavity 133, stretching the second elastic element 131. The elastic deformation of the second elastic element 131 can compensate for changes in wire length, preventing damage to the wire due to excessive stretching or compression, thus ensuring the quality of the stranded wire.

[0057] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stranding device, characterized in that: The device includes a bracket (1), a slide rail (2) fixed on the bracket (1), a slide block (3) sliding on the slide rail (2), a first fixing mechanism (4) on the slide block (3), and a second fixing mechanism (5) above the bracket (1). The first fixing mechanism (4) and the second fixing mechanism (5) are used to fix the two ends of the wire to be stranded, respectively. A mounting bracket (6) is fixed on the bracket (1), and a driving component (7) is installed on the mounting bracket (6). The output end of the driving component (7) is fixed to the second fixing mechanism (5). The driving component (7) drives the second fixing mechanism (5) to rotate to achieve stranding. A length adjustment mechanism (8) is installed on the bracket (1). The length adjustment mechanism (8) drives the slide block (3) to move on the slide rail (2) to adjust the stranding length of the wire.

2. The stranding device according to claim 1, characterized in that: It also includes a controller (9). The first fixing mechanism (4) includes a first connecting plate (41), a first cylinder (42), a fixing block (43), and a limiting plate (44). The first connecting plate (41) is fixed on the slide (3). The first cylinder (42) is mounted on the first connecting plate (41). The fixing block (43) is fixed on the slide (3). The piston rod of the first cylinder (42) is fixed to the limiting plate (44). The limiting plate (44) slides on the slide (3) for laterally pressing the wire to be stranded. The first cylinder (42) is electrically connected to the controller (9).

3. The stranding device according to claim 1, characterized in that: The second fixing mechanism (5) includes a mounting base (51), an arc-shaped block (52), and a locking block (53). The mounting base (51) is fixed on the output end of the drive unit (7). The arc-shaped block (52) is located between the mounting base (51) and the locking block (53). The arc-shaped block (52) is fixed on the mounting base (51). The locking block (53) is set on the arc-shaped block (52). The two ends of the arc-shaped block (52) form steps with the mounting base (51) and the locking block (53) respectively. The steps facilitate the stable winding of the coil. The locking block (53) is provided with a groove (54) for locking the coil.

4. A stranding device according to claim 3, characterized in that: The card block (53) is fixedly connected to the arc-shaped block (52).

5. A stranding device according to claim 2, characterized in that: The length adjustment mechanism (8) includes a second connecting plate (81) and a second cylinder (82). The second connecting plate (81) is fixed on the bracket (1), and the second cylinder (82) is mounted on the second connecting plate (81). The piston rod of the second cylinder (82) is fixed on the slide (3), and the second cylinder (82) is electrically connected to the controller (9).

6. A stranding device according to claim 2, characterized in that: The driving component (7) is a servo motor. The mounting bracket (6) has an oblong hole (10). The servo motor is fixed on the mounting bracket (6). The output end of the servo motor passes through the oblong hole (10) and is fixed to the mounting base (51). The servo motor is electrically connected to the controller (9).

7. A stranding device according to claim 2, characterized in that: The fixing block (43) is provided with an elastic cover plate assembly (11) for vertically pressing the wire to be stranded. The elastic cover plate assembly (11) is connected to the piston rod of the first cylinder (42) through a linkage mechanism (12). When the piston rod of the first cylinder (42) extends or retracts, the linkage mechanism (12) drives the elastic cover plate assembly (11) to move up and down to press or release the wire to be stranded.

8. A stranding device according to claim 7, characterized in that: The elastic cover plate assembly (11) includes a cover plate body (111), a first elastic element (112), and an arc-shaped protrusion (113). The cover plate body (111) has an installation groove (114). The first elastic element (112) is located in the installation groove (114), and the arc-shaped protrusion (113) slides vertically on the installation groove (114). The two ends of the first elastic element (112) are fixed to the inner wall of the installation groove (114) and the arc-shaped protrusion (113), respectively.

9. A stranding device according to claim 8, characterized in that: The linkage mechanism (12) includes a receiving frame (121), an inclined plate (122), a connecting plate (123), and a limiting frame (124). The receiving frame (121) is fixed on the piston rod of the first cylinder (42). The inclined plate (122) is fixed on the receiving frame (121). The connecting plate (123) is fixed on the cover plate body (111). The bottom end of the connecting plate (123) is inclined and slides on the inclined surface of the inclined plate (122). The limiting frame (124) is fixed on the fixing block (43), and the connecting plate (123) slides within the limiting frame (124).

10. A stranding device according to claim 3, characterized in that: The locking block (53) slides on the arc plate. An elastic adaptive mechanism (13) for compensating for the length change of the wire to be stranded is connected between the arc plate and the locking block (53). The elastic adaptive mechanism (13) includes a second elastic element (131), a slider (132) and a receiving cavity (133). The receiving cavity (133) is opened on the arc block (52). The second elastic element (131) is disposed in the receiving cavity (133). The slider (132) slides in the receiving cavity (133) and is fixed to the locking block (53). The two ends of the second elastic element (131) are fixed to the inner wall of the receiving cavity (133) and the slider (132) respectively.

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