Cabling equipment for cross-linked polyethylene insulated cable

Abstract

A cross-linked polyethylene insulated cable cabling device relates to the technical field of special cable manufacturing equipment, and is characterized in that a monitoring mechanism is provided with a wire inlet sleeve with a power connection assembly at an inlet of a wire outlet cylinder, two power connection bodies are isolated when an insulated wire core normally passes through, and the two power connection bodies are contacted and conducted to form a loop when the insulated wire core is used up; and the trigger controller stops the driving motor and the traction device immediately, so that invalid twisting is avoided. The wire clamping mechanism adopts air pressure to drive wire clamping blocks, during normal operation, an insulated wire core is in contact with a roller to enable each wire clamping block to be kept in an open state, and during wire breaking, the wire clamping blocks are quickly closed under the action of a spring to clamp the insulated wire core, so that equipment or personnel injury caused by swinging of the insulated wire core is prevented. According to the equipment, double safety protection of automatic shutdown and cable core locking is realized through linkage design, and the safety and production continuity of cabling operation are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of special equipment for manufacturing cables. Background Art

[0002] In the manufacturing process of cross-linked polyethylene (XLPE) insulated cables, cabling equipment and processes are critical to the cable's structural integrity and performance stability. Cabling equipment primarily twists multiple insulated cores or shielding layers into a cable core according to design requirements, and completes processes such as filling and wrapping. However, existing cabling equipment monitoring methods have some shortcomings. For example, in the cabling of three-core XLPE cables, existing cabling machines load the three phase insulated cores onto corresponding payout reels within the stranding cage. The payout system then pulls the insulated cores and rotates the cage to twist them. Operators typically visually determine when the insulated cores on each payout reel are exhausted, then manually shut down the stranding cage and payout system. This can easily lead to inadvertent failures, resulting in ineffective stranding of the remaining insulated cores after one phase's insulated core is exhausted. This results in wasted strands and wastes material. Furthermore, when an insulated core is broken, the free end of the core can be violently swung during rotation, potentially causing damage to equipment and personnel. Summary of the Invention

[0003] In view of this, the present invention provides a cross-linked polyethylene insulated cable cabling device, which can automatically stop twisting when the insulation core is exhausted, thereby reducing material waste and preventing the insulation core from being torn and swinging.

[0004] In order to achieve the above objectives, the present invention provides the following technical solutions.

[0005] Cross-linked polyethylene insulated cable cabling equipment includes a base, a stranding cage, a drive motor, a stranding die and a traction device. The stranding cage includes a main shaft, a rear rotary disk and at least two pay-off assemblies. The rear rotary disk is provided with at least two outlet drums, which correspond to the pay-off assemblies one by one. The outlet drums are provided with an inlet and an outlet. The traction device pulls the insulated wire core from the pay-off assembly through the inlet and outlet of the outlet drum and the stranding die in sequence for stranding. The outlet drum is also provided with a monitoring mechanism for detecting whether an insulated wire core passes through and a wire clamping mechanism for clamping the insulated wire core. The monitoring mechanism includes: A controller for controlling the start and stop of the drive motor and traction device; The inlet sleeve is located at the entrance of the outlet sleeve, and is provided with a horizontal hole for the insulated wire core to pass through and two vertical holes perpendicular to the horizontal hole, and the two vertical holes are arranged opposite to each other; The power connection assembly is provided in two groups and is installed in the two vertical holes respectively. It includes a power connection body and a first elastic member. The two power connections are electrically connected to the controller via wires. The first elastic member is connected to the power connection body to apply an elastic force directed to the axis of the horizontal hole to the power connection body. When the insulated wire core passes through the horizontal hole, the two power connections are separated. When the two power connections are in contact, a circuit is formed, so that the controller controls the drive motor and the traction device to stop. The wire clamping mechanism includes: The wire clamping sleeve is arranged in the outlet sleeve and is located behind the inlet sleeve. The wire clamping sleeve has a wire clamping cavity and at least two sliding cavities evenly arranged around the wire clamping cavity. The sliding cavity is connected to the external air source. The clamping assembly is provided with at least two groups, which include a wire clamping block and a second elastic member. The upper part of the wire clamping block is slidably connected to the sliding cavity, and the lower part of the wire clamping block extends into the wire clamping cavity. The second elastic member is connected to the wire clamping block to apply an elastic force directed to the wire clamping cavity to the wire clamping block. The lower part of the wire clamping block is provided with a roller for contacting the insulated wire core. The roller protrudes from the surface of the wire clamping block in contact with the insulated wire core, and the roller is located at one end close to the wire inlet sleeve.

[0006] By setting up a monitoring mechanism, when the insulated core passes through the incoming sleeve, it naturally pushes the two power receiving bodies apart, so that the two power receiving bodies are physically separated. When the insulated core of a phase is exhausted, the first elastic member pushes the two power receiving bodies to contact to form a loop, triggering the controller to send a signal to control the drive motor and traction device to stop immediately, to prevent the twisting from continuing and causing invalid twisting. By setting up a clamping mechanism, the insulated core first contacts the roller after passing through the incoming sleeve, so that each clamping block remains open. When the insulated core of a phase is exhausted, the roller loses contact with the insulated core, and the clamping block immediately closes under the action of the second elastic member to clamp the insulated core moving toward the outlet of the outlet barrel, to prevent the insulated core from being swung by the twisting cage after falling out and injuring equipment or personnel.

[0007] Among them, the wire clamping mechanism also includes a sliding ring and a third elastic member. The sliding ring is sleeved on the outside of the wire clamping sleeve and is rotatably connected to the wire clamping sleeve. A protrusion is provided on the sliding ring, and a sliding groove that cooperates with the protrusion is provided on the wire outlet barrel. The protrusion is inserted into the sliding groove so that the wire clamping mechanism can slide along the sliding groove. The third elastic member is connected to the wire clamping mechanism to apply an elastic force to reset the wire clamping mechanism forward.

[0008] Since the traction device cannot stop instantly due to inertia, it will still pull the insulated wire core to move a certain distance after receiving the stop signal from the controller, which may cause the clamped insulated wire core to be torn off and thrown out, causing personnel or equipment to be thrown and causing safety accidents. By providing a sliding ring and a sliding groove, the wire clamping mechanism can slide a certain distance along the wire outlet barrel for buffering after clamping the insulated wire core, thereby avoiding the situation where the traction device continues to pull due to inertia during the shutdown process and breaks the insulated wire core.

[0009] The contact surface of the clamping block with the insulated wire core is equipped with multiple engaging teeth. Because the outer surface of the insulated wire core is relatively smooth, the contact surface between the clamping block and the insulated wire core may slip during high-speed pulling, resulting in unstable clamping. By adding engaging teeth to the contact surface of the clamping block, the teeth can embed into the surface of the insulated wire core during clamping, improving the clamping effect and reducing the risk of slippage when the clamping block clamps the insulated wire core.

[0010] The wire clamping mechanism further includes a front air jet end cover and a rear air jet end cover, wherein the front air jet end cover is mounted on the front end face of the wire clamping sleeve, and the rear air jet end cover is mounted on the rear end face of the wire clamping sleeve, and the front air jet end cover and the rear air jet end cover are respectively provided with a first air duct and a second air duct connected to an external air source, and the first air duct and the second air duct are both provided with at least two chip blowing nozzles at intervals, and the chip blowing nozzles are aligned with the surface of the wire clamping block in contact with the insulated wire core. Since the engaging teeth of the wire clamping block may scrape out surface debris of the insulated wire core when clamping, these debris will adhere to the surface of the wire clamping block, resulting in an inability to clamp the wire the next time, and may also be brought into the twisting mold along with the insulated wire core during the next twisting, resulting in being twisted into the cable after cabling, thereby reducing the quality of the cable. By providing the front air jet end cover and the rear air jet end cover, the chip blowing nozzles are used to blow air to clean the surface of the wire clamping block, thereby reducing the impact of debris on the next wire clamping and twisting.

[0011] Among them, protrusions for blocking the chip blowing nozzles are provided at intervals in the wire clamping cavity, the chip blowing nozzles of the first air channel and the second air channel are staggered, the front end face of the wire clamping sleeve is provided with an annular groove, a fixed blade is provided in the annular groove, and the first air channel is provided with a blade nozzle aligned with the fixed blade. If the chip blowing nozzles on both sides spray at the same time, the debris on the surface of the wire clamping block may not be blown away from the wire clamping cavity smoothly, but may remain in the wire clamping cavity. By providing protrusions and staggered chip blowing nozzles at intervals in the wire clamping cavity, the thrust of the external air jet is used to push the wire clamping sleeve to rotate. When the wire clamping sleeve rotates, the protrusions alternately open the chip blowing nozzles on both sides, and the chip blowing nozzles on both sides alternately spray air for cleaning, thereby achieving a better cleaning effect.

[0012] The wire is covered with an insulating layer and has a connecting terminal at its end. The connecting body includes: Conductive balls, used to contact the insulated wire core; A ball push rod is used to install a conductive ball, the bottom of which is connected to the first elastic member, and an intermediate cavity is provided inside the ball push rod; a connecting conductor for connecting the wire and the conductive ball, the connecting conductor being disposed in the intermediate cavity and being capable of sliding; a fourth elastic member being disposed at the bottom of the connecting conductor to push the connecting conductor into contact with the conductive ball; the connecting conductor having an inner cavity into which the wire is inserted and held fixed so that the connecting conductor can slide relative to the wire; The connecting spring is used for contacting and conducting with the connecting terminal. The connecting spring is arranged in the inner cavity and sleeved on the wire. One end of the connecting spring is connected to the connecting conductor, and the other end extends along the wire and is separated from the connecting terminal.

[0013] If the contact (conductive ball) remains charged when the insulated wire core passes through the cable entry sleeve, static electricity will accumulate on the surface of the insulated wire core, causing dust and other impurities in the environment to adhere to the insulated wire core, reducing the quality of the cable. By providing a connecting conductor and connecting spring, the two conductive balls are disconnected from the wire before contact, ensuring that no voltage acts on the surface of the insulated wire core and preventing static electricity accumulation.

[0014] The transverse hole is provided with a plurality of sliding balls, which convert sliding friction into rolling friction, thereby reducing the friction force when the insulated wire core passes through the wire entry sleeve, making the insulated wire core pass more smoothly and reducing the resistance encountered by the traction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the cross-linked polyethylene insulated cable cabling equipment of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the cross-linked polyethylene insulated cable cabling equipment of the present invention from another perspective.

[0017] Figure 3 It is a front view of the cross-linked polyethylene insulated cable cabling equipment of the present invention.

[0018] Figure 4 For the Figure 3 Partial cross-sectional view along the AA direction.

[0019] Figure 5 This is an exploded view of part of the cage structure.

[0020] Figure 6 It is a cross-sectional view of the wire clamping mechanism.

[0021] Figure 7 A cross-sectional view of the monitoring mechanism.

[0022] Figure 8 A perspective cutaway view of the rear rotating disc with the disc cover hidden.

[0023] Figure 9 This is an exploded view of the wire clamping mechanism.

[0024] Figure 10 Schematic diagram of the three-dimensional structure of the wire clamping block.

[0025] Figure 11 It is a schematic diagram of the three-dimensional structure of the front jet end cover and the rear jet end cover.

[0026] Figure 12 It is a three-dimensional cross-sectional view of the electrical connection body.

[0027] Reference numerals include: Stranding cage 1, main shaft 11, conductive sheet 111, rotary joint 112, brush ring 113, brush rod 114, rear rotary disc 12, outlet drum 121, drum cover 1211, chute 1212, disc cover 122, front rotary disc 13, pay-off assembly 14; Monitoring mechanism 2, inlet sleeve 21, horizontal hole 211, sliding ball 2111, vertical hole 212, electrical connection body 22, conductive ball 221, ball push rod 222, intermediate cavity 223, connecting conductor 224, inner cavity 2241, fourth elastic member 225, connecting spring 226, fixing flange 227, first elastic member 23, third air channel 24; Wire clamping mechanism 3, wire clamping sleeve 31, wire clamping cavity 311, protrusion 3111, sliding cavity 312, annular groove 313, fixed blade 314, wire clamping block 315, roller 3151, engaging tooth 3152, second elastic member 316, sliding collar 32, protrusion 321, exhaust hole 3211, third elastic member 33, front air injection end cover 34, first air channel 341, rear air injection end cover 35, second air channel 351, chip blowing nozzle 36, blade nozzle 37, air guide ring 38, groove 381; Base 4, drive motor 5, transmission belt 51, twisting die 6, insulated core 7, wire 8, connecting terminal 81, air pipe 9. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to specific embodiments.

[0029] Combine Figure 1-Figure 5 The cross-linked polyethylene insulated cable cabling equipment of this embodiment includes a base 4, a stranding cage 1, a drive motor 5, a stranding die 6 and a traction device (not shown in the figure), combined with Figure 3 、 Figure 5 The cage 1 includes a main shaft 11, a front rotary disk 13, a rear rotary disk 12 and three pay-off assemblies 14. The rear rotary disk 12 is provided with a disk cover 122 and three outlet drums 121. The outlet drums 121 correspond to the pay-off assemblies 14 one by one. The outlet drums 121 are provided with an inlet, an outlet and a drum cover 1211. Figure 1 The traction device pulls the insulated wire core 7 from the pay-off assembly 14 through the inlet and outlet of the outlet barrel 121 and enters the stranding die 6. The drive motor 5 is connected to the main shaft 11 through the transmission belt 51 to drive the stranding cage 1 to rotate for stranding. Figure 5The outlet barrel 121 is also provided with a monitoring mechanism 2 for detecting whether an insulated wire core 7 passes through and a wire clamping mechanism 3 for clamping the insulated wire core 7. When the monitoring mechanism 2 detects that the insulated wire core 7 passing through the outlet barrel 121 is exhausted or missing, the driving motor 5 and the traction device are controlled to stop, and the wire clamping mechanism 3 automatically clamps the insulated wire core 7 still remaining in the outlet barrel 121.

[0030] Combine Figure 4-Figure 8 The monitoring mechanism 2 includes a controller (not shown), an inlet sleeve 21, and a power connection assembly. The controller, such as an STM32 or PLC, is used to control the start and stop of the drive motor 5 and the traction device. The inlet sleeve 21 is located at the entrance of the outlet sleeve 121 and is fixedly connected to the rear rotating disk 12. Figure 7 The inlet sleeve 21 is provided with a horizontal hole 211 for the insulated wire core 7 to pass through and two vertical holes 212 perpendicular to the horizontal hole 211. The two vertical holes 212 are arranged opposite each other. There are two sets of power connection components and they are respectively installed in the two vertical holes 212. Each set of power connection components includes a power connection body 22 and a first elastic member 23. The two power connection bodies 22 of the two sets of power connection components are electrically connected to the controller via a wire 8. The first elastic member 23 is connected to the power connection body 22 to apply an elastic force to the power connection body 22 pointing to the axis of the horizontal hole 211. When the insulated wire core 7 passes through the horizontal hole 211, the two power connection bodies 22 are separated. When the insulated wire core 7 is missing, the two power connection bodies 22 are pushed by the elastic force of the first elastic member 23 to contact each other and form a conductive loop. The controller receives the electrical signal and controls the drive motor 5 and the traction device to stop. In addition, the wire inlet sleeve 21 is provided with a third air channel 24 connected to the external air source. The third air channel 24 is connected to the external air source through the air pipe 9 and is connected to the vertical hole 212. When the insulated wire core 7 is initially loaded, the external air source can be used to drive the two power connectors 22 to open, and then the insulated wire core 7 can be passed through the wire inlet sleeve 21.

[0031] like Figure 9 As shown, the clamping mechanism 3 includes a clamping sleeve 31 and a clamping assembly. Figure 4 、 Figure 6 and Figure 8 The clamping sleeve 31 is provided in the outlet sleeve 121 and is located behind the inlet sleeve 21. The clamping sleeve 31 is provided with an annular groove 313, which is connected to the external air source. Figure 6 and Figure 9The wire clamping sleeve 31 is provided with a wire clamping cavity 311 and four sliding cavities 312 evenly arranged around the wire clamping cavity 311. The lower cavity of the sliding cavity 312 is connected to the annular groove 313, and the upper cavity of the sliding cavity 312 is connected to the outside. There are two groups of clamping assemblies, each group of clamping assemblies includes two wire clamping blocks 315 and two second elastic members 316. The upper part of the wire clamping block 315 is slidably connected to the sliding cavity 312, and the lower part of the wire clamping block 315 extends into the wire clamping cavity 311. The second elastic member 316 is connected to the wire clamping block 315 to apply an elastic force to the wire clamping block 315 directed to the wire clamping cavity 311. The lower part of the wire clamping block 315 is provided with a roller 3151 for contacting the insulated wire core 7. The roller 3151 protrudes from the surface of the wire clamping block 315 in contact with the insulated wire core 7, and the roller 3151 is located at one end close to the inlet sleeve 21. Under normal conditions, the insulated wire core 7 contacts the rollers 3151, which lift the clamping blocks 315, allowing the insulated wire core 7 to be pulled normally through the clamping sleeve 31. When the insulated wire core 7 is exhausted, the free end of the insulated wire core 7 is pulled into the clamping sleeve 31. When the free end of the insulated wire core 7 loses contact with the rollers 3151, the clamping blocks 315 lose the support of the rollers 3151 and the insulated wire core 7 and, pushed by the second elastic member 316, converge toward the clamping cavity 311, thereby clamping and locking the insulated wire core 7 that has not yet escaped from the clamping cavity 311. When it is necessary to remove or load the insulated wire core 7, an external air source can be used to drive the clamping blocks 315 to open. By setting up the wire clamping mechanism 3, the insulated wire core 7 first contacts the roller 3151 after passing through the wire inlet sleeve 21, so that each wire clamping block 315 remains open. When the insulated wire core 7 of a phase is exhausted, the roller 3151 loses contact with the insulated wire core 7, and the wire clamping block 315 immediately closes under the action of the second elastic member 316 to clamp the insulated wire core 7 moving toward the outlet of the wire outlet barrel 121, preventing the insulated wire core 7 from being swung by the cage 1 after escaping and injuring equipment or personnel.

[0032] Combine Figure 4 、 Figure 5 and Figure 8One end of the main shaft 11 connected to the rear rotating disk 12 is sleeved with two conductive sheets 111, and the conductive sheet 111 is fixedly connected to the main shaft 11 to rotate synchronously with the main shaft 11. The two power connections 22 of each monitoring mechanism 2 are respectively connected to the two conductive sheets 111 through the wire 8 according to the positive and negative polarities. For example, all power connections 22 connected to the positive pole of the controller are connected to the same conductive sheet 111, and all power connections 22 connected to the negative pole of the controller are connected to another conductive sheet 111. The other end of the main shaft 11 is sleeved with two brush rings 113, and the brush ring 113 is fixedly connected to the main shaft 11 to rotate synchronously with the main shaft 11. The conductive sheet 111 and the brush ring 113 are connected one-to-one by the wire 8, and a brush rod 114 matching the brush ring 113 is also provided. The brush rod 114 is provided with two connected brushes, and the two brushes are in one-to-one contact with the two brush rings 113. The controller can be installed on the brush rod 114 and does not need to rotate with the cage 1. In this way, as long as the two power contacts 22 of any monitoring mechanism 2 are in contact with each other, that is, no matter which phase of the insulated core 7 is missing, a circuit can be formed through the conductive sheet 111 and the brush ring 113, allowing the controller to control the drive motor 5 and the traction device to stop. In addition, see Figure 2 A connecting air channel (not shown in the figure) is provided inside the main shaft 11, and a rotary joint 112 is provided at the entrance of the connecting air channel. The rotary joint 112 is connected to the external air source. The rotary joint 112 can maintain connection with the external air source under rotating working conditions. The outlet of the connecting air channel (not shown in the figure) is provided at one end where the main shaft 11 is connected to the rear rotating disk 12 (the first air channel 341 and the second air channel 351 mentioned below are both connected to the outlet through the air pipe 9).

[0033] By setting up the monitoring mechanism 2, when the insulated wire core 7 passes through the incoming wire sleeve 21, it naturally pushes the two electrical connections 22 apart, physically separating the two electrical connections 22. When the insulated wire core 7 of a phase is exhausted, the first elastic member 23 pushes the two electrical connections 22 into contact to form a loop, triggering the controller to send a signal to control the drive motor 5 and the traction device to immediately stop, preventing the twisting from continuing and causing invalid twisting. Of course, a photoelectric sensor can also be used to detect the insulated wire core 7 in the incoming wire barrel, but the wiring of the photoelectric sensor is more complicated under rotating conditions, and each outgoing wire barrel 121 needs to be wired separately. The present invention is more compact by setting up wiring structures such as the conductive sheet 111 and the brush ring 113, and is not affected by the rotation of the stranding cage 1.

[0034] Since the traction device cannot stop instantly due to inertia, after receiving the stop signal from the controller, the traction device will still drive the insulated core 7 to move a certain distance, which may cause the clamped insulated core 7 to be torn off and thrown out, causing personnel or equipment to be thrown and causing safety accidents. Figure 4 and Figure 9The clamping mechanism 3 also includes a sliding ring 32 and a third elastic member 33. The sliding ring 32 is sleeved on the outside of the clamping sleeve 31 and is rotatably connected to the clamping sleeve 31, so that the clamping sleeve 31 can rotate relative to the sliding ring 32. A protrusion 321 is provided on the sliding ring 32, and an exhaust hole 3211 communicating with the outside is provided on the protrusion 321. Figure 5 The outlet barrel 121 is provided with a slide groove 1212 that cooperates with the protrusion 321. The protrusion 321 is inserted into the slide groove 1212, so that the clamping mechanism 3 can slide along the slide groove 1212. The sliding ring 32 also includes an air guide ring 38. The air guide ring 38 is provided with a groove 381 for exhaust. The groove 381 is connected to the exhaust hole 3211. Figure 6 The upper chamber of the sliding cavity 312 is connected to the exhaust hole 3211 through the groove 381. The third elastic member 33 is connected to the wire clamping mechanism 3 to apply an elastic force to reset the wire clamping mechanism 3 forward. When the free end of the insulated wire core 7 is clamped and locked by the wire clamping block 315, the entire wire clamping mechanism 3 can slide a certain distance along the slide groove 1212 of the outlet barrel 121 with the cooperation of the sliding collar 32 and the slide groove 1212. By providing the sliding collar 32 and the slide groove 1212, the wire clamping mechanism 3 can slide a certain distance along the outlet barrel 121 for buffering after clamping the insulated wire core 7, preventing the traction device from continuing to pull due to inertia during the shutdown process and tearing the insulated wire core 7.

[0035] Since the outer surface of the insulated wire core 7 is relatively smooth, when the clamping blocks 315 are closing and clamping the insulated wire core 7, the contact surface between the clamping blocks 315 and the insulated wire core 7 may slip, resulting in unstable clamping. Figure 10 The surface of the clamping block 315 that contacts the insulated wire core 7, i.e., the lower surface of the clamping block 315, is provided with a plurality of engaging teeth 3152. By providing the engaging teeth 3152 on the contact surface of the clamping block 315, the engaging teeth 3152 can be embedded into the surface of the insulated wire core 7 during clamping, thereby improving the clamping effect of the clamping block 315 and reducing the possibility of the clamping block 315 slipping when clamping the insulated wire core 7.

[0036] When the clamping teeth 3152 of the clamping block 315 clamp the insulated wire core 7, it is possible that the surface debris of the insulated wire core 7 will be scraped out. These debris will adhere to the surface of the clamping block 315, resulting in failure to clamp the wire next time. These debris may also be brought into the twisting mold 6 along with the insulated wire core 7 during the next twisting, causing them to be twisted into the cable after being twisted, thereby reducing the quality of the cable. Figure 6 、 Figure 9 and Figure 11 The clamping mechanism 3 also includes a front air-jet end cover 34 and a rear air-jet end cover 35, see Figure 6The front jet end cover 34 is installed on the front end surface of the clamping sleeve 31, and the rear jet end cover 35 is installed on the rear end surface of the clamping sleeve 31. The front jet end cover 34 and the rear jet end cover 35 are respectively provided with a first air channel 341 and a second air channel 351 connected to the external air source. Figure 6 and Figure 11 The first air passage 341 and the second air passage 351 are each provided with four chip blowing nozzles 36 at intervals. Each chip blowing nozzle 36 is aimed at the contact surface between the clamping block 315 and the insulated wire core 7. By providing the front air jet end cover 34 and the rear air jet end cover 35, the chip blowing nozzles 36 are used to blow air to clean the contact surface between the clamping block 315 and the insulated wire core 7, reducing the impact of debris on the next clamping and twisting process.

[0037] If the chip blowing nozzles 36 on both sides spray air at the same time, the chips on the surface of the clamping block 315 may not be blown away from the clamping cavity 311 smoothly, but may remain in the clamping cavity 311. Figure 9 , 4 protrusions 3111 are provided in the clamping cavity 311, see Figure 11 The chip blowing nozzles 36 are staggered, and the spacing angles of the chip blowing nozzles 36 are consistent with the spacing angles of the protrusions 3111. The front end surface of the clamping sleeve 31 is provided with an annular groove 313, in which a fixed blade 314 is located. The first air channel 341 is provided with a blade nozzle 37 aligned with the fixed blade 314. When an external air source blows air into the first air channel 341 and the second air channel 351, the chip blowing nozzles 36 eject airflow. At the same time, the blade nozzle 37 ejects airflow toward the fixed blade 314. Driven by the airflow, the fixed blade 314 drives the clamping sleeve 31 to rotate. As the clamping sleeve 31 rotates, the protrusions 3111 alternately pass through the chip blowing nozzles 36 of the first air channel 341 and the second air channel 351, causing the chip blowing nozzles 36 on both sides to be alternately opened and blocked, performing alternating air jet cleaning. By arranging protrusions 3111 and staggered chip blowing nozzles 36 at intervals in the wire clamping cavity 311, the thrust of the external air jet is used to push the wire clamping sleeve 31 to rotate. When the wire clamping sleeve 31 rotates, the protrusions 3111 alternately open the chip blowing nozzles 36 on both sides, and the chip blowing nozzles 36 on both sides alternately spray air for cleaning, thereby achieving a better cleaning effect.

[0038] When the insulated wire core 7 passes through the inlet sleeve 21, if the power supply 22 remains charged, static electricity will accumulate on the surface of the insulated wire core 7, causing dust and other impurities in the environment to be electrostatically adsorbed onto the surface of the insulated wire core 7, thereby reducing the quality of the cable. Figure 7 、 Figure 12The wire 8 is coated with an insulating layer and has a connecting terminal 81 at its end. The electrical connection body 22 includes a conductive ball 221, a ball push rod 222, a connecting conductor 224, a connecting spring 226, and a fixing flange 227. The conductive ball 221 is embedded in the top of the ball push rod 222 for contacting the insulated wire core 7. The bottom of the ball push rod 222 is connected to the first elastic member 23, and an intermediate cavity 223 is defined within the ball push rod 222. The connecting conductor 224 is used to connect the wire 8 and the conductive ball 221. The connecting conductor 224 is arranged in the middle cavity 223 and can slide. A fourth elastic member 225 is provided at the bottom of the connecting conductor 224. The fixing flange 227 is used to provide support for the fourth elastic member 225. The fourth elastic member 225 is respectively connected to the bottom of the fixing flange 227 and the top of the connecting conductor 224 to push the connecting conductor 224 into contact with the conductive ball 221. The connecting conductor 224 has an inner cavity 2241. The wire 8 is inserted into the inner cavity 2241 and remains fixed, allowing the connecting conductor 224 to slide relative to the wire 8. The connecting spring 226 is made of a conductive material. The connecting spring 226 is arranged in the inner cavity 2241 and is sleeved on the wire 8. One end of the connecting spring 226 is connected to the connecting conductor 224, and the other end extends along the wire 8 and is separated from the connecting terminal 81.

[0039] Combine Figure 4 、 Figure 7 and Figure 12 When the insulated wire core 7 passes through the inlet sleeve 21, the conductive balls 221 in the two vertical holes 212 contact the insulated wire core 7, the ball push rod 222 is lifted, and the connecting terminal 81 and the connecting spring 226 are relatively separated. When the insulated wire core 7 is missing from the inlet sleeve 21, the ball push rod 222 and the conductive balls 221 in the two vertical holes 212 are pushed down by the first elastic member 23, and the connecting terminal 81 and the connecting spring 226 are relatively close together until they contact. The electrical signal of the wire 8 is transmitted from the connecting terminal 81 through the connecting spring 226 and the connecting conductor 224 to the conductive balls 221. When the two conductive balls 221 contact, a connected circuit is formed. By providing the connecting conductor 224 and the connecting spring 226, the two conductive balls 221 remain disconnected from the wire 8 before contact, ensuring that no voltage acts on the surface of the insulated wire core 7 and preventing static electricity accumulation.

[0040] See also Figure 7 A plurality of sliding balls 2111 are provided in the transverse hole 211 to reduce the friction force when the insulating core 7 passes through the inlet sleeve 21, so that the insulating core 7 passes more smoothly and the resistance experienced by the traction device is reduced.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A cross-linked polyethylene insulated cable cabling device, comprising a base, a stranding cage, a drive motor, a stranding die, and a pulling device. The stranding cage comprises a main shaft, a rear rotary disk, and at least two pay-off assemblies. The rear rotary disk is provided with at least two outlet drums, each corresponding to a pay-off assembly. The outlet drums are provided with an inlet and an outlet. The pulling device pulls the insulated wire core from the pay-off assembly through the inlet and outlet of the outlet drum and the stranding die for stranding. The device is characterized in that: The outlet barrel is also provided with a monitoring mechanism for detecting whether an insulated wire core passes through and a wire clamping mechanism for clamping the insulated wire core; Monitoring agencies include: A controller for controlling the start and stop of the drive motor and traction device; The inlet sleeve is located at the entrance of the outlet sleeve, and is provided with a horizontal hole for the insulated wire core to pass through and two vertical holes perpendicular to the horizontal hole, and the two vertical holes are arranged opposite to each other; The power connection assembly is provided in two groups and is installed in the two vertical holes respectively. It includes a power connection body and a first elastic member. The two power connections are electrically connected to the controller via wires. The first elastic member is connected to the power connection body to apply an elastic force directed to the axis of the horizontal hole to the power connection body. When the insulated wire core passes through the horizontal hole, the two power connections are separated. When the two power connections are in contact, a circuit is formed, so that the controller controls the drive motor and the traction device to stop. The wire clamping mechanism includes: The wire clamping sleeve is arranged in the outlet sleeve and is located behind the inlet sleeve. The wire clamping sleeve has a wire clamping cavity and at least two sliding cavities evenly arranged around the wire clamping cavity. The sliding cavity is connected to the external air source. The clamping assembly is provided with at least two groups, which include a wire clamping block and a second elastic member. The upper part of the wire clamping block is slidably connected to the sliding cavity, and the lower part of the wire clamping block extends into the wire clamping cavity. The second elastic member is connected to the wire clamping block to apply an elastic force directed to the wire clamping cavity to the wire clamping block. The lower part of the wire clamping block is provided with a roller for contacting the insulated wire core. The roller protrudes from the surface of the wire clamping block in contact with the insulated wire core and is located at one end close to the wire inlet sleeve.

2. The cross-linked polyethylene insulated cable cabling equipment according to claim 1, characterized in that: The wire clamping mechanism also includes a sliding ring and a third elastic member. The sliding ring is sleeved on the outside of the wire clamping sleeve and is rotatably connected to the wire clamping sleeve. A protrusion is provided on the sliding ring, and a sliding groove that cooperates with the protrusion is provided on the wire outlet barrel. The protrusion is inserted into the sliding groove so that the wire clamping mechanism can slide along the sliding groove. The third elastic member is connected to the wire clamping mechanism to apply an elastic force to reset the wire clamping mechanism forward.

3. The cross-linked polyethylene insulated cable cabling equipment according to claim 1, characterized in that: The surface of the clamping block that contacts the insulated wire core is provided with a plurality of engaging teeth.

4. The cross-linked polyethylene insulated cable cabling equipment according to claim 3, characterized in that: The wire clamping mechanism also includes a front jet end cover and a rear jet end cover. The front jet end cover is installed on the front end surface of the wire clamping sleeve, and the rear jet end cover is installed on the rear end surface of the wire clamping sleeve. The front jet end cover and the rear jet end cover are respectively provided with a first air duct and a second air duct connected to an external air source. The first air duct and the second air duct are both provided with at least two chip blowing nozzles at intervals, and the chip blowing nozzles are aligned with the surface of the wire clamping block that contacts the insulated wire core.

5. The cross-linked polyethylene insulated cable cabling equipment according to claim 4, characterized in that: The wire clamping cavity is provided with protrusions for blocking the chip blowing nozzles at intervals. The chip blowing nozzles of the first air duct and the second air duct are arranged alternately. The front end face of the wire clamping sleeve is provided with an annular groove, and a fixed blade is provided in the annular groove. The first air duct is provided with a blade nozzle aimed at the fixed blade.

6. The cross-linked polyethylene insulated cable cabling equipment according to claim 1, characterized in that: The wire is covered with an insulating layer and has a connecting terminal at its end. The connecting body includes: Conductive balls, used to contact the insulated wire core; A ball push rod is used to install a conductive ball, the bottom of which is connected to the first elastic member, and an intermediate cavity is provided inside the ball push rod; a connecting conductor for connecting the wire and the conductive ball, the connecting conductor being disposed in the intermediate cavity and being capable of sliding; a fourth elastic member being disposed at the bottom of the connecting conductor to push the connecting conductor into contact with the conductive ball; the connecting conductor having an inner cavity into which the wire is inserted and held fixed so that the connecting conductor can slide relative to the wire; The connecting spring is used for contacting and conducting with the connecting terminal. The connecting spring is arranged in the inner cavity and sleeved on the wire. One end of the connecting spring is connected to the connecting conductor, and the other end extends along the wire and is separated from the connecting terminal.

7. The cross-linked polyethylene insulated cable cabling equipment according to claim 1, characterized in that: A plurality of sliding-assisting balls are arranged in the transverse hole.

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