Cable production line and cable

The cable production line and cables with pre-deformation twisting and dynamic adjustment of twisting pitch solve the problems of core gap and insulation aging, improve the mechanical strength and electrical performance of the cable, and extend the service life of the cable.

CN120854067APending Publication Date: 2025-10-28BEIJING DAYANER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510875003.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

In the prior art, the helical pitch of the wire cores is too long during twisting, and the wire cores cannot fit tightly together, resulting in high cable resistance, microgaps, and accelerated insulation aging.

Method used

The pre-deformation stranding technology is adopted, and uniform pressure is applied to the wire core through the indented pressing sheet and the wire-contacting ball. The twisting pitch is dynamically adjusted in combination with the U-shaped support plate and the lifting platform. The pressure sensor and distance sensor of the fixed wire structure are used to monitor the tension in real time. The thermosetting material extruder body and the alternating cooling structure are combined to ensure uniform coating of the insulation layer and staged temperature control.

Benefits of technology

The cables are tightly twisted, which prevents the cores from unraveling and the insulation from cracking, thus improving the mechanical strength and electrical performance of the cables and extending their reliability and life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a cable production line and a cable, and belongs to the technical field of cable production. The cable production line comprises a wiring table, and further comprises a cabling structure which is arranged at the outer side of a wire drawing table and is used for twisting a plurality of single wires into a conductor; the wire fixing structure is arranged at the inner side of the cabling structure and is used for preventing the wire core from loosening and excessive stretching to balance the consistency of the tension of the wire core; the alternate cooling structure is arranged on the outer side, close to the thermosetting material extruding machine body, of the wiring table and is used for preventing the cable from generating micro gaps due to rapid cooling in a mode that air cooling is performed on a cable core of the cable and then refrigerant contact is performed; the guide assembly is mounted in the middle of the wire drawing table and used for regularly introducing a guide wire to one side of the wire drawing assembly; according to the invention, pre-deformation stranding is adopted, uniform pressure is applied to the wire cores through the indented pressing sheets and the contact wire clamping balls, and the wire cores are forced to be tightly attached; the twisting pitch is adjusted by the U-shaped supporting plate and the lifting platform, so that a gap caused by overlong spiral pitch is avoided, and the cable is not easy to scatter.
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Description

Technical Field

[0001] This invention relates to the field of cable manufacturing technology, and in particular to a cable production line and a cable. Background Art

[0002] In the cable manufacturing process, conductor wires are typically formed by stranding (such as concentric stranding, bundle stranding, or double stranding). If the design requires the conductor wires to be divided into three groups, each group can be independently stranded and then assembled into a cable. Multiple groups of conductor wires can be arranged symmetrically around the central reinforcement or filler material.

[0003] Existing single-strand twisting machines primarily twist multiple wire bundles during the cable stranding process. Since the wire bundle cross-section is generally circular, the resulting cable has significant gaps between the strands, leading to loose strands that easily unravel and increased cable resistance. Furthermore, during the stranding of multiple insulated cores into the cable core, improper process control or substandard external conditions can result in loose wrapping between the cable core and insulation layer. Excessive helical pitch during stranding can prevent tight bonding between cores, and micro-gaps can occur due to rapid cooling. Additionally, inconsistent tension among the cores can cause some cores to slack or overstretch, resulting in loose strands after stranding. This can lead to partial discharge, accelerated insulation aging, and ultimately, reduced electrical performance, compromising cable reliability and lifespan. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where the spiral pitch of the wire core is too long during stranding, the wire cores cannot be tightly fitted, and the micro gaps caused by rapid cooling of the cable and the loosening after stranding lead to partial discharge of the wire cores and accelerated insulation aging. Therefore, this invention proposes a cable production line and a cable.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cable production line and a cable, including a cable routing table, and further comprising:

[0007] An annealing furnace body is located on the top side of the wire feeding table, and a wire drawing table is also provided on the outside of the annealing furnace body. An inclined support arm is also provided on the outside of the wire drawing table, and a wire drawing assembly is also provided in the middle of the inclined support arm.

[0008] The cabling structure, located on the outside of the drawing table, is used to twist multiple single wires into a conductor;

[0009] The wire-fixing structure is located inside the cabling structure to prevent the wire core from loosening and being overstretched, thereby balancing the tension of the wire core.

[0010] The thermosetting extruder body is fixedly connected to the outside of the cable tray near the cable-forming structure. Rubber curtain doors are also fitted on both sides of the thermosetting extruder body. The rubber curtain doors are used to reduce the entry of cold air and pollutants into the thermosetting extruder.

[0011] An alternating cooling structure is set on the outside of the cable tray near the thermosetting extruder body. It is used to prevent the cable from developing micro gaps due to rapid cooling by first air cooling and then contacting the core of the cable with the refrigerant.

[0012] A guide assembly, installed in the middle of the drawing table, is used to introduce the wire guide rule to one side of the drawing assembly.

[0013] As a preferred technical solution of this application, the wire drawing assembly includes a transverse bracket installed on the outside of the inclined support arm, a sliding block slidably connected to the inside of the transverse bracket, a wedge-shaped wire drawing abutment installed on the top of the sliding block and in contact with the guide wire surface, a transverse screw installed on the bottom of the sliding block, a threaded sleeve threaded onto the outside of the transverse thread, a fixed plate installed on the bottom of the transverse bracket, a reduction motor installed in the middle of the fixed plate, and a gear transmission shaft installed on the outside of the output end of the reduction motor for driving the threaded sleeve to rotate.

[0014] As a preferred technical solution of this application, the cabling structure includes a four-corner bracket installed on the top of the cabling platform, a boss installed on the top of the four-corner bracket, a push cylinder installed at the middle of the top of the boss, a lifting platform installed on the outside of the output end of the push cylinder and slidably connected to the inner wall of the four-corner bracket, a U-shaped support plate installed at the bottom of the lifting platform and connected to the wire fixing structure, and a wire locking assembly installed on both sides of the four-corner bracket for guiding the stranding of the wire.

[0015] As a preferred technical solution of this application, the wire fixing structure includes a stepper motor installed on one side of the U-shaped support plate, a grooved pressure plate installed on the outside of the output end of the stepper motor for pressing the guide wire, a pressure sensor installed on the side of the U-shaped support plate away from the grooved pressure plate for contacting the stranded guide wire, and a distance sensor installed on the side of the grooved pressure plate and the pressure sensor for measuring the thickness of the stranded cable.

[0016] As a preferred technical solution of this application, the wire locking assembly includes a DC motor installed on the outside of the four corner brackets, a rotating cover installed below the DC motor, a compression spring installed inside one side of the rotating cover, a connecting plate installed on the outside of the compression spring, and a contact wire catch ball rotatably connected to the outside of the connecting plate and used to gather the guide wire.

[0017] As a preferred technical solution of this application, the alternating cooling structure includes a cable body installed on the outside of the cable outlet end of the rotating shroud, an air inlet platform installed on the top of the cable tray, an air pump installed on the top of the air inlet platform, an air duct installed on the outside of the air pump output end and connected to the inside of the top of the air inlet platform, an air blowing pipe installed at the bottom of the air duct for cooling the surface of the cable body, a discharge pipe installed at the bottom of the air inlet platform for adsorbing impurities on the surface of the cable body, a pump installed on the outside of the discharge pipe, a cooling box installed on the side of the cable tray near the air inlet platform, and a cooling pipe installed on the inside of the top of the cooling box for contacting the surface of the cable body.

[0018] As a preferred technical solution of this application, the guiding assembly includes a drive motor installed on the outside of the inclined support arm, a notched spool installed on the outside of the output end of the drive motor for pulling the guide wire, a fixed bracket installed on the wire feeding table near the outside of the inclined support arm, and a wire drawing disc rotatably connected to the inside of the fixed bracket.

[0019] As a preferred technical solution of this application, the wire drawing discs are located on the inner side of the fixed bracket and are staggered. The wire drawing discs are used to divide the guide wires into three groups, and each group can be independently drawn and then formed into a cable.

[0020] As a preferred technical solution of this application, the DC motor and the rotating cover form a rotating structure through a transmission belt, and the two sets of rotating covers are of equal size and are flush with each other in the X-axis direction.

[0021] A cable, the cable body comprising a core body and an outer sheath, the core body being sleeved inside the outer sheath and used for different signals and phases, the outer sheath filling the outside of the core body and used to protect the core body.

[0022] Compared with the prior art, the present invention provides a cable production line and a cable, which have the following beneficial effects:

[0023] 1. This cable production line and cable, this device adopts pre-deformed stranding, and applies uniform pressure to the wire core through the indented pressure plate and contact ball to force the wire core to fit tightly; the U-shaped support plate and lifting platform dynamically adjust the stranding pitch to avoid gaps caused by excessive helical pitch, so that the stranded cable is not easy to unravel and the mechanical strength is improved.

[0024] 2. The cable production line and cable, the fixed structure integrates pressure sensors and distance sensors to monitor the core tension and strand thickness in real time. The clamping force of the grooved pressure plate is dynamically adjusted by a stepper motor, and the rotating cover and compression spring adaptively compensate for the core tension fluctuation.

[0025] 3. The cable production line and cable are equipped with a thermosetting material extruder and a rubber curtain to isolate contaminants and ensure uniform coating of the insulation layer; the alternating cooling structure adopts a staged temperature control with air cooling first and then refrigerant contact to avoid insulation shrinkage cracks caused by rapid cooling.

[0026] 4. The cable production line and cable achieve a drawing diameter accuracy of ±0.02mm through the coordinated adjustment of the wedge-shaped drawing abutment and the transverse screw. The guide assembly, through the notched spool and the staggered drawing disc, enables the device to independently draw multiple sets of wire cores into cables. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a cable production line and cable proposed in this invention;

[0028] Figure 2 This is a side view of a cable production line and cable routing table proposed in this invention;

[0029] Figure 3 This is a schematic diagram of the structure of a cable production line and cable wire drawing assembly proposed in this invention;

[0030] Figure 4 This is a schematic diagram of a cable production line and cable assembly structure proposed in this invention;

[0031] Figure 5 This is a schematic diagram of a cable production line and cable fixing structure proposed in this invention;

[0032] Figure 6 This is a schematic diagram of the structure of a cable production line and cable locking assembly proposed in this invention;

[0033] Figure 7 This is a schematic diagram of a cable production line and an alternating cable cooling structure proposed in this invention;

[0034] Figure 8 This is a distribution diagram of a cable production line and cable cooling pipes proposed in this invention;

[0035] Figure 9 This invention provides a cable production line and a cable. Figure 1 A schematic diagram of the structure of part A;

[0036] Figure 10 This invention provides a cable production line and a cable. Figure 2 A schematic diagram of the structure of part B.

[0037] In the picture:

[0038] 1. Wire drawing table; 2. Annealing furnace body; 21. Wire drawing table; 22. Slanted support arm; 23. Wire drawing assembly; 231. Horizontal support; 232. Sliding block; 233. Wedge-shaped wire drawing abutment; 234. Horizontal screw; 235. Threaded sleeve; 236. Fixing plate; 237. Gear motor; 238. Gear drive shaft; 3. Cable forming structure; 301. Four-corner support; 302. Boss; 303. Push cylinder; 304. Lifting platform; 305. U-shaped support plate; 306. Wire locking assembly; 3061. DC motor; 3062. Rotating cover; 3063. Compression spring; 3064. Connecting plate; 3065. 4. Contact ball; 5. Wire fixing structure; 6. Stepper motor; 7. Pressure plate with indentation; 8. Pressure sensor; 9. Distance sensor; 10. Thermosetting material extruder body; 11. Rubber curtain door; 12. Alternating cooling structure; 13. Cable body; 24. Core body; 15. Outer sheath; 26. Air inlet platform; 37. Air pump; 48. Air duct; 59. Air blowing pipe; 600. Discharge pipe; 101. Suction pump; 202. Cooling box; 202. Cooling pipe; 21. Guide assembly; 22. Drive motor; 33. Spool with notch; 44. Fixing bracket; 55. Wire drawing disc; 66. Linear shaft; 77. Through hole. Detailed Implementation

[0039] 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.

[0040] Example:

[0041] Reference Figure 1-3 A cable production line includes a cable routing table 1, and further includes:

[0042] The annealing furnace body 2 is located on the top side of the wire feeding table 1, and a wire drawing table 21 is also provided on the outside of the annealing furnace body 2. An inclined support arm 22 is also provided on the outside of the wire drawing table 21, and a wire drawing assembly 23 is also provided in the middle of the inclined support arm 22. The wire feeding table 1 is used to support and connect various functional components to ensure the stability of the material transmission path. The annealing furnace body 2 is used to perform continuous annealing treatment on metal wires. The inclined support arm 22 fixes the wire drawing assembly 23 and provides structural support.

[0043] The cabling structure 3 is located on the outside of the drawing table 21 and is used to twist multiple single wires into a conductor.

[0044] The wire fixing structure 4 is located inside the cabling structure 3 and is used to prevent the wire core from loosening and excessive stretching in order to balance the consistency of the wire core tension.

[0045] The thermosetting extruder body 5 is fixedly connected to the outside of the cable tray 1 near the cable-forming structure 3. Rubber curtain doors 51 are also fitted on both sides of the thermosetting extruder body 5. The rubber curtain doors 51 are used to reduce the entry of cold air and pollutants into the thermosetting extruder. The thermosetting extruder body 5 is used to uniformly coat the molten insulating material onto the conductor surface.

[0046] Alternating cooling structure 6 is set on the outside of the cable tray 1 near the thermosetting material extruder body 5. It is used to prevent the cable from having micro gaps due to rapid cooling by first air cooling and then contacting the core of the cable with the refrigerant.

[0047] The guide assembly 7 is installed in the middle of the drawing table 21 and is used to guide the wire guide rules to one side of the wire drawing assembly 23.

[0048] like Figure 3 and Figure 9 As shown, in one embodiment: the wire drawing assembly 23 includes a transverse support 231 mounted on the outside of the inclined support arm 22, a sliding block 232 slidably connected to the inside of the transverse support 231, a wedge-shaped wire drawing abutment 233 mounted on the top of the sliding block 232 and in contact with the wire guide surface, a transverse screw 234 mounted on the bottom of the sliding block 232, a threaded sleeve 235 threaded onto the outside of the transverse thread, a fixing plate 236 mounted on the bottom of the transverse support 231, a reduction motor 237 mounted in the middle of the fixing plate 236, and a gear transmission shaft 238 mounted on the outside of the output end of the reduction motor 237 and used to drive the threaded sleeve 235 to rotate; the transverse screw 234 and the threaded sleeve 235 convert the rotational motion of the reduction motor 237 into the linear motion of the sliding block 232, controlling the wire drawing force; the reduction motor 237, in conjunction with the gear transmission shaft 238, provides power to drive the threaded sleeve 235 to rotate, thereby realizing the automatic adjustment of the wire drawing process.

[0049] like Figure 2 and Figure 10 As shown, in one embodiment: the cabling structure 3 includes a four-corner bracket 301 installed on the top of the cabling platform 1, a boss 302 installed on the top of the four-corner bracket 301, a push cylinder 303 installed at the middle of the top of the boss 302, a lifting platform 304 installed on the outside of the output end of the push cylinder 303 and slidably connected to the inner wall of the four-corner bracket 301, a U-shaped support plate 305 installed at the bottom of the lifting platform 304 and connected to the wire fixing structure 4, and a wire locking assembly 306 installed on both sides of the four-corner bracket 301 for guiding the wire and twisting the wire; the lifting platform 304 carries the U-shaped support plate 305 and dynamically adjusts the twisting position, and the wire locking assembly 306 gathers the guide wire to prevent it from spreading out during twisting.

[0050] like Figure 4 and Figure 5As shown, in one embodiment: the wire fixing structure 4 includes a stepper motor 401 mounted on one side of the U-shaped support plate 305, a grooved pressure plate 402 mounted on the outside of the output end of the stepper motor 401 for pressing the guide wire, a pressure sensor 403 mounted on the side of the U-shaped support plate 305 away from the grooved pressure plate 402 for contacting the stranded guide wire, and a distance sensor 404 mounted on the side of the grooved pressure plate 402 and the pressure sensor 403 for measuring the thickness of the stranded cable; the grooved pressure plate 402 increases friction through grooves to prevent the wire core from slipping, the pressure sensor 403 is used to monitor the tension of the wire harness in real time, and the distance sensor 404 is used to measure the thickness of the stranded cable.

[0051] like Figure 2 and Figure 6 As shown, in one embodiment: the wire locking assembly 306 includes a DC motor 3061 mounted on the outside of the four corner brackets 301, a rotating cover 3062 mounted below the DC motor 3061, a compression spring 3063 mounted inside one side of the rotating cover, a connecting plate 3064 mounted on the outside of the compression spring 3063, and a contact ball 3065 rotatably connected to the outside of the connecting plate 3064 and used for gathering the guide wire; the wire locking assembly 306 is used to drive the stranding action, keep the wire harness rotating synchronously, and simultaneously adaptively gather the guide wire to balance the stranding tension.

[0052] like Figure 7 and Figure 8 As shown, in one embodiment: the alternating cooling structure 6 includes a cable body 61 installed outside the cable outlet end of the rotating shroud, an air inlet platform 62 installed on the top of the cable tray 1, an air pump 63 installed on the top of the air inlet platform 62, an air duct 64 installed outside the output end of the air pump 63 and connected to the inner side of the top of the air inlet platform 62, an air blowing pipe 65 installed at the bottom of the air duct 64 for cooling the surface of the cable body 61, a discharge pipe 66 installed at the bottom of the air inlet platform 62 for adsorbing impurities on the surface of the cable body 61, a suction pump 67 installed outside the discharge pipe 66, a cooling box 68 installed on the side of the cable tray 1 near the air inlet platform 62, and a cooling pipe 69 installed on the inner side of the top of the cooling box 68 for contacting the surface of the cable body 61; the air inlet platform 62, in conjunction with the air pump 63, is used to provide air-cooled airflow to initially solidify the insulation layer, and the cooling box 68 and the cooling pipe 69 are used for precise cooling by contact with the refrigerant to prevent micro-gap.

[0053] like Figure 1 and Figure 2As shown, in one embodiment: the guide assembly 7 includes a drive motor 71 mounted on the outside of the inclined support arm 22, a notched spool 72 mounted on the outside of the output end of the drive motor 71 and used for pulling the guide wire, a fixed bracket 73 mounted on the wire guide table 1 near the outside of the inclined support arm 22, and a wire drawing disc 74 rotatably connected to the inside of the fixed bracket 73; the guide assembly 7 is used to pull the guide wire to ensure that the angle of entry into the wire drawing assembly 23 is consistent.

[0054] like Figure 2 As shown, in one embodiment: the wire drawing discs 74 are located inside the fixed bracket 73 and are staggered. The wire drawing discs 74 are used to divide the guide wires into three groups, and each group can be drawn independently and then formed into a whole cable.

[0055] like Figure 2 As shown, in one embodiment: the DC motor 3061 and the rotating cover form a rotating structure through a transmission belt, and the two sets of rotating covers are of equal size and are flush with each other in the X-axis direction.

[0056] like Figure 1 and Figure 2 The cable shown has a cable body 61 including a core body 611 and an outer sheath 612. The core body 611 is sleeved inside the outer sheath 612 and is used for different signals and phases. The outer sheath 612 fills the outside of the core and is used to protect the core body 611. The cable body 61 is used to transmit current or signals, and multiple cores are twisted together to improve conductivity.

[0057] Specifically, in the use of a cable production line and cable: copper / aluminum rods enter the annealing furnace 2 from the wire feeding rack, undergo continuous annealing under inert gas protection to eliminate work hardening and improve ductility. The annealed wire enters the drawing table 21, is guided by the notched spool 72 of the guide assembly 7, and is pre-stretched in groups by staggered drawing discs 74. During the drawing process, the geared motor 237 drives the gear transmission shaft 238 to rotate the threaded sleeve 235. The threaded sleeve 235 drives the sliding block 232 to move laterally through the transverse screw 234, so that the wedge-shaped drawing abutment 233 presses the wire, achieving graded diameter reduction. The distance sensor 404 monitors the wire diameter in real time and provides feedback to adjust the abutment pressure. After drawing, multiple single wires enter the cabling structure 3. Simultaneously, the push cylinder 303 is activated, driving the lifting platform 304 to descend smoothly with the cooperation of the linear shaft 100 and the built-in through hole 101. The U-shaped support plate 305 carries the wire harness. The DC motor 3061 drives two sets of rotating cylinders to rotate synchronously via a transmission belt, and the wire harness is twisted at a preset pitch. During this process, the compression spring 3063 pushes the connecting plate 3064, which, in conjunction with the contact ball 3065, gathers the wire harness to prevent it from unraveling during twisting. When securing the wires, the pressure sensor 403 detects the overall pressure of the wire harness. When there is excessive pressure, the stepper motor 401 adjusts the clamping force of the indented pressure plate 402 to reduce the guide wire gap. The distance sensor 404 monitors the twisting thickness, and if it exceeds the tolerance, it triggers the lifting platform 304 for fine adjustment. Next, the stranded conductor enters the thermosetting extruder 5, where XLPE and other materials are extruded at high temperature. A rubber curtain 51 isolates the cable from external cold air, and the gap between the extruder head and the cable core is ≤0.5mm to ensure the insulation layer is free of air bubbles. Then, the air pump 63 is started, delivering room temperature air through the air duct 64 to the air blowing pipe 65, evenly blowing it onto the cable surface to initially solidify the insulation layer. Next, the cable enters the cooling box 68, where low-temperature nitrogen gas is introduced through the cooling pipe 69 to directly contact the insulation layer, achieving precise temperature control. The suction pump 67 adsorbs surface-detached particles through the discharge pipe 66. Finally, the cooled cable is guided to the take-up device via guide wheels.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cable production line, comprising a cable routing table, characterized in that, Also includes: An annealing furnace body is located on the top side of the wire feeding table, and a wire drawing table is also provided on the outside of the annealing furnace body. An inclined support arm is also provided on the outside of the wire drawing table, and a wire drawing assembly is also provided in the middle of the inclined support arm. The cabling structure, located on the outside of the drawing table, is used to twist multiple single wires into a conductor; The wire-fixing structure is located inside the cabling structure to prevent the wire core from loosening and being overstretched, thereby balancing the tension of the wire core. The thermosetting extruder body is fixedly connected to the outside of the cable tray near the cable-forming structure. Rubber curtain doors are also fitted on both sides of the thermosetting extruder body. The rubber curtain doors are used to reduce the entry of cold air and pollutants into the thermosetting extruder. An alternating cooling structure is set on the outside of the cable tray near the thermosetting extruder body. It is used to prevent the cable from developing micro gaps due to rapid cooling by first air cooling and then contacting the core of the cable with the refrigerant. A guide assembly, installed in the middle of the drawing table, is used to introduce the wire guide rule to one side of the drawing assembly.

2. The cable production line according to claim 1, characterized in that, The wire drawing assembly includes a transverse bracket installed on the outside of the inclined support arm, a sliding block slidably connected to the inside of the transverse bracket, a wedge-shaped wire drawing abutment installed on the top of the sliding block and in contact with the guide wire surface, a transverse screw installed on the bottom of the sliding block, a threaded sleeve threaded onto the outside of the transverse thread, a fixed plate installed on the bottom of the transverse bracket, a reduction motor installed in the middle of the fixed plate, and a gear drive shaft installed on the outside of the output end of the reduction motor for driving the threaded sleeve to rotate.

3. A cable production line according to claim 1, characterized in that, The cabling structure includes four corner brackets installed on the top of the cabling platform, a boss installed on the top of the four corner brackets, a push cylinder installed at the middle of the top of the boss, a lifting platform installed on the outside of the output end of the push cylinder and slidably connected to the inner wall of the four corner brackets, a U-shaped support plate installed at the bottom of the lifting platform and connected to the wire fixing structure, and a wire locking assembly installed on both sides of the four corner brackets for guiding and stranding the wire.

4. A cable production line according to claim 3, characterized in that, The cable fixing structure includes a stepper motor mounted on one side of the U-shaped support plate, a grooved pressure plate mounted on the outside of the stepper motor output end for pressing the guide wire, a pressure sensor mounted on the side of the U-shaped support plate away from the grooved pressure plate for contacting the stranded guide wire, and a distance sensor mounted on the side of the grooved pressure plate and the pressure sensor for measuring the thickness of the stranded cable.

5. A cable production line according to claim 3, characterized in that, The wire locking assembly includes a DC motor mounted on the outside of the four corner brackets, a rotating cover mounted below the DC motor, a compression spring mounted inside one side of the rotating cover, a connecting plate mounted on the outside of the compression spring, and a contact wire catch ball rotatably connected to the outside of the connecting plate for gathering the guide wire.

6. A cable production line according to claim 1, characterized in that, The alternating cooling structure includes a cable body installed outside the cable outlet end of the rotating shroud, an air inlet platform installed on the top of the cable tray, an air pump installed on the top of the air inlet platform, an air duct installed outside the air pump output end and connected to the inner side of the top of the air inlet platform, an air blowing pipe installed at the bottom of the air duct for cooling the surface of the cable body, a discharge pipe installed at the bottom of the air inlet platform for adsorbing impurities on the surface of the cable body, a suction pump installed outside the discharge pipe, a cooling box installed on the side of the cable tray near the air inlet platform, and a cooling pipe installed on the inner side of the top of the cooling box for contacting the surface of the cable body.

7. A cable production line according to claim 1, characterized in that, The guiding assembly includes a drive motor mounted on the outside of the inclined arm, a notched spool mounted on the outside of the output end of the drive motor for drawing the guide wire, a fixed bracket mounted on the wire feeding table near the outside of the inclined arm, and a wire drawing disc rotatably connected to the inside of the fixed bracket.

8. A cable production line according to claim 7, characterized in that, The wire drawing discs are located inside the fixed bracket and are staggered. The wire drawing discs are used to divide the guide wires into three groups, and each group can be drawn independently before being assembled into a cable.

9. A cable production line according to claim 5, characterized in that, The DC motor and the rotating cover form a rotating structure through a transmission belt, and the two sets of rotating covers are of equal size and are flush with each other in the X-axis direction.

10. A cable according to any one of claims 1-9, characterized in that, The cable body includes a core body and an outer sheath. The core body is sleeved inside the outer sheath and is used for different signals and phases. The outer sheath fills the outside of the core body and is used to protect the core body.