Aerial insulated cable and processing equipment thereof

Abstract

The invention relates to the technical field of cable processing equipment, in particular to an aerial insulated cable and processing equipment thereof.The aerial insulated cable comprises a mounting frame, a first mounting ring and a second mounting ring, the first mounting ring and the second mounting ring are rotationally connected to the mounting frame, and when the first mounting ring and the second mounting ring drive a pay-off assembly to rotate, multiple wires are stranded together; the plurality of wires which are twisted together form a cable; the second mounting ring is provided with a tensioning assembly used for tensioning the end part of the stranded wire, and the tensioning assembly comprises a limiting rod fixed on the second mounting ring, a first tensioning ring and a second tensioning ring which are connected to the limiting rod in a sliding manner, and a tensioning spring arranged between the first tensioning ring and the second tensioning ring; and the tension spring pulls the first tension ring and the second tension ring to get close to each other, so as to clamp and fix the end part of the wire in the limiting rod. According to the invention, the end part of the wire can be twisted more tightly.

Description

Technical Field

[0001] This application relates to the technical field of cable processing equipment, and in particular to an overhead insulated cable and its processing equipment. Background Technology

[0002] Overhead insulated cables are a type of power transmission line specifically designed for outdoor installations. They are characterized by having an insulating material wrapped around the conductor, which retains the advantages of traditional bare overhead conductors while providing greater safety and adaptability.

[0003] Overhead insulated cables are generally composed of a single conductor, several conductors, or several groups of conductors. Because multiple conductors, after being twisted together, offer advantages such as good flexibility, high reliability, high strength, and good stability, all multi-conductor cables currently use a stranding machine to twist copper wires into a single conductor. A cable stranding machine is an auxiliary device used in cable production to strand wires for better cable manufacturing. After the multiple conductors are stranded, an extruder forces insulating material onto the stranded cable, ultimately forming an insulating layer on the cable surface.

[0004] For example, Chinese patent document CN119340038B discloses a cable stranding machine and its usage method, including a base with a motor-driven mounting plate on the base, and further including: a wire feeding roller assembly, wherein multiple sets of the wire feeding roller assembly are evenly distributed circumferentially on the mounting plate, and a wire take-up roller assembly for winding the stranded wire is provided at the end of the base away from the mounting plate; and a wire separating reel, which is mounted on the base via a first support, and a connection is provided between the wire separating reel and the mounting plate. The device includes a wire distributor with a threading hole for a single wire to pass through; and a stranding seat, which is mounted on a base via a second support. The stranding seat is positioned between the wire distributor and the take-up roller assembly. The stranding seat is provided with several anti-wear components and a drive assembly for driving the anti-wear components to rotate on the stranding seat. The several anti-wear components together form a stranding hole for the wire to pass through. A guide mechanism is provided between the stranding seat and the take-up roller assembly, and the guide mechanism is provided with a guide seat with the same structure as the stranding seat. In practical use, anti-wear components are installed to ensure that the conductor passing through the stranding seat comes into contact with and rubs against the stranding seat at multiple points during the stranding process. This prevents a single point on the stranding seat from constantly contacting and rubbing against the conductor, and extends the interval between the next contact between a single point on the stranding seat and the winding conductor. This keeps the contact point between the conductor and the inner wall of the stranding seat constantly changing, thereby achieving a wear-free function. This reduces the degree of wear on a single point on the inner wall of the stranding seat, and prevents the heat generated by friction between the conductor and the stranding seat from concentrating, thus avoiding heat-induced deformation and damage to the conductor and ensuring the quality of cable processing.

[0005] In the aforementioned related technologies, during conductor stranding, the conductor passing through the stranding seat makes multiple points of contact and friction with the stranding seat, avoiding constant contact and friction between the stranding seat and the conductor at a single point. This extends the interval between the next contact between a single point of the stranding seat and the winding conductor, ensuring that the contact point between the conductor and the inner wall of the stranding seat is constantly changing, thereby achieving a wear-free function. However, during the conductor stranding process, the conductor detaches from the pay-off frame. After the conductor end completely detaches from the pay-off frame, there is no tension at the conductor end, which is in a loose state. When stranding at the coil position, it is easy to cause the stranded cable to be not tight enough, affecting the quality of the cable end. Summary of the Invention

[0006] This application provides an overhead insulated cable and its processing equipment, aiming to solve the problem of poor stranding effect at the cable tail in related technologies.

[0007] The technical solution for an overhead insulated cable and its processing equipment provided in this application is as follows: First aspect: An overhead insulated cable processing device includes a mounting frame and a first mounting ring and a second mounting ring rotatably connected to the mounting frame. The mounting frame is equipped with a drive assembly for rotating the first mounting ring. A wire feeding assembly is mounted on the first and second mounting rings. When the first and second mounting rings drive the wire feeding assembly to rotate, multiple conductors are twisted together to form a cable. The second mounting ring is equipped with a tensioning assembly for tightening the ends of the twisted conductors. The tensioning assembly includes a limiting rod fixed to the second mounting ring, a first tensioning ring and a second tensioning ring slidably connected to the limiting rod, and a tension spring disposed between the first and second tensioning rings. The tension spring pulls the first and second tensioning rings closer together, clamping and fixing the ends of the conductors within the limiting rod. The second mounting ring is also equipped with a spreading assembly for moving the first tensioning ring towards the second tensioning ring. When the conductor has not completely detached from the wire feeding reel, the first and second tensioning rings remain open and do not clamp the conductor.

[0008] By adopting the above technical solution, during the cable production process, the wire feeding assembly feeds the wire. During the feeding process, the first and second mounting rings drive the wire feeding assembly to rotate, causing multiple conductors to twist together. When the conductors are not detached from the feeding reel, the first and second tensioning rings do not clamp the conductors. After the conductor ends detach from the wire feeding assembly, it indicates that the conductors on the wire feeding assembly have been used. Then, the assembly is opened and detached from the opening plate. Under the action of the tension spring, the first and second tensioning rings are pulled closer to each other. Finally, the conductors are clamped by the first and second tensioning rings. By sliding on the limit rod, the first and second tensioning rings support the conductor ends, giving the conductor ends a certain tension. In the subsequent twisting process, the conductor ends are twisted more tightly, resulting in better cable quality after production.

[0009] Optionally, the mounting plate is provided with a linkage assembly for moving the first tension ring and the second tension ring in opposite directions. When the first tension ring is pushed away from the limit rod by the spreading assembly, the second tension ring also moves away from the limit rod. The linkage assembly includes a first linkage rack fixed on the first tension ring and a second linkage rack fixed on the second tension ring, as well as a rotating gear rotatably connected to the mounting plate. The rotating gear meshes with both the first and second linkage racks simultaneously.

[0010] By adopting the above technical solution, after the opening component is separated from the first tensioning ring, the tensioning spring drives the first tensioning ring to move closer to the second tensioning ring. At this time, the first linkage rack on the first tensioning ring drives the rotating gear to rotate, the rotating gear drives the second linkage rack to rotate, and the second linkage rack drives the second tensioning ring to move closer to the first tensioning ring, so that the first tensioning ring and the second tensioning ring can be clamped on the end of the wire.

[0011] Optionally, the spreading assembly includes a mounting shaft rotatably connected to the second mounting ring and a spreading plate disposed on the mounting shaft. The spreading plate is used to spread the first tension ring and the second tension ring, so that the tension spring is in a stretched state. The spreading plate includes a mounting part and a spreading part. The mounting part is fixedly mounted on the mounting shaft, and the spreading part is fixed on the mounting part, and the spreading part abuts against the inner side of the mounting plate on the first tension ring. The second mounting ring is provided with a turning assembly for turning the mounting shaft. The turning assembly causes the mounting shaft to drive the spreading plate to rotate, and the spreading plate is no longer in contact with the first tension ring.

[0012] By adopting the above technical solution, after the wire is detached from the wire feeding assembly, the actuating assembly drives the mounting shaft to rotate, and the mounting shaft drives the spreading plate to rotate. During the outward rotation of the spreading plate, the first tensioning ring is first pulled to move away from the limiting rod. After the spreading part is detached from the inner side of the first tensioning ring, the tension spring drives the first tensioning ring to move closer to the second tensioning ring, thereby facilitating clamping at the end of the wire.

[0013] Optionally, the actuating assembly includes an actuating shaft rotatably connected to a second mounting ring, a sealing plate fixed to the actuating shaft, an actuating plate fixed to the actuating shaft, and an abutting plate fixed to the mounting shaft. The abutting plate abuts against the actuating plate. A actuating spring is provided on the second mounting ring. One end of the actuating spring is fixed to the second mounting ring, and the other end is fixed to the actuating plate. The actuating spring is used to drive the actuating plate to rotate toward the second tensioning ring.

[0014] Optionally, a reset torsion spring is sleeved on the mounting shaft to drive the mounting shaft and the first tensioning ring to reset. One end of the reset torsion spring is fixed on the second mounting ring, and the other end is fixed on the mounting shaft.

[0015] Optionally, the limiting rod is provided with a pressing plate for pressing the first tensioning plate and the second tensioning plate. The pressing plate includes a guide part and a pressing part. The guide part and the pressing part are spaced apart from the side of the limiting rod, and the end of the guide part away from the pressing part is inclined away from the limiting rod.

[0016] By adopting the above technical solution, the first tension plate and the second tension plate are better fixed to the end of the wire under the action of the pressure plate, which facilitates the sliding of the wire and the first tension plate and the second tension plate on the limiting rod at the same time.

[0017] Optionally, the limiting rod is provided with a push plate, and the push plate is provided with a push slope. When the pressing part is disengaged from the first tension ring and the second tension ring, the inner side of the tension plate abuts against the push slope, and the push slope pushes the first tension ring and the second tension ring away from each other.

[0018] By adopting the above technical solution, the pushing slope on the pushing plate pushes the first tensioning ring and the second tensioning ring away from each other, which facilitates the wire to be released from the first tensioning ring and the second tensioning ring.

[0019] Optionally, the wire feeding assembly includes a wire feeding frame disposed on a first mounting ring and a second mounting ring, a wire feeding shaft rotatably connected to the wire feeding frame, and a wire feeding reel fixed on the wire feeding shaft, wherein a wire is wound on the wire feeding reel.

[0020] Optionally, the mounting frame is provided with a support assembly for supporting the second mounting ring. The support assembly includes a support frame fixed on the mounting frame and a plurality of support rollers rotatably connected to the support frame. The plurality of support rollers are used to abut against the side of the second mounting ring.

[0021] By adopting the above technical solution, the second mounting ring can be supported by multiple support rollers, thus making the rotation of the first and second mounting rings more stable.

[0022] The second aspect: An overhead insulated cable includes a cable sheath extruded by an extruder and an overhead insulated cable core made using overhead insulated cable processing equipment, wherein the cable sheath is made of polyvinyl chloride (PVC).

[0023] By adopting the above technical solution, the purchased copper or aluminum rods are cold-drawn to the required monofilament diameter through a wire drawing machine die, so that the monofilaments regain their flexibility and ductility to meet the bending requirements of the cable. Multiple annealed wires are then twisted together in a certain direction to form a cable with sufficient flexibility and stability. Before the twisted cable enters the extruder production line, it usually passes through a preheating device to remove moisture from the surface of the wires and raise the temperature of the wires, so that the molten insulation material can wrap the wires more tightly and evenly, reduce internal stress, and improve adhesion.

[0024] Insulating material (polyvinyl chloride (PVC)) is added to the extruder hopper in granular form. Inside the extruder barrel, the material is heated and sheared and plasticized by the screw, becoming molten. The molten plastic is continuously propelled by the screw through a precision die (die head). A preheated conductor passes through the center of the die head, and the molten insulation is uniformly and continuously extruded and coated onto the conductor surface. After extrusion, the cable, now wrapped with the molten insulation layer, needs to be... It is placed in a long cooling water tank and cooled gradually in several stages (such as warm water and cold water) to avoid internal stress or micropores caused by sudden cooling.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Under the action of the tension spring, the first tension ring and the second tension ring are pulled closer to each other, and finally the wire is clamped by the first tension ring and the second tension ring. The first tension ring and the second tension ring slide on the limit rod to support the end of the wire, so that the end of the wire also has a certain tension, making the wire twisted more tightly in the subsequent twisting process.

[0026] 2. After the spreading part disengages from the inner side of the first tensioning ring, the tensioning spring drives the first tensioning ring to move closer to the second tensioning ring, thereby facilitating clamping at the end of the wire. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is the front view of an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the driver component structure according to an embodiment of this application.

[0030] Figure 4This is a schematic diagram of the structure of the expansion component according to an embodiment of this application.

[0031] Figure 5 This is a cross-sectional view of the limiting rod according to an embodiment of this application.

[0032] Figure 6 This is a schematic diagram of the toggle component structure according to an embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the linkage component structure in an embodiment of this application.

[0034] Figure 8 This is a schematic diagram of the sealing plate structure according to an embodiment of this application.

[0035] Reference numerals: 01, Mounting bracket; 02, First mounting ring; 03, Second mounting ring; 04, Connecting rod; 05, Wire concentrator; 1, Drive assembly; 11, Drive motor; 12, Drive gear; 13, Drive shaft; 14, Driven gear; 2, Wire feeding assembly; 22, Wire feeding frame; 23, Wire feeding shaft; 24, Wire feeding reel; 3, First wire threading hole; 31, Second wire threading hole; 32, Third wire threading hole; 33, Mounting plate; 34, Return torsion spring; 35, Actuating spring; 36, Push plate; 37, Pushing inclined surface; 4, Support assembly; 41, Support frame; 42, Support roller; 5, Tensioning assembly; 51, Limiting rod; 511, Inclined part; 512, Horizontal part; 52, First tensioning ring; 521, Mounting rod; 522 523. Tensioning part; 53. Tensioning plate; 54. Second tensioning ring; 55. Tensioning spring; 6. Spreading assembly; 61. Mounting shaft; 62. Spreading plate; 621. Mounting part; 622. Spreading part; 7. Linkage assembly; 71. First linkage rack; 72. Second linkage rack; 73. Rotating gear; 8. Actuating assembly; 81. Actuating shaft; 82. Sealing plate; 83. Actuating plate; 84. Abutment plate; 9. Pressing plate; 91. Guide part; 92. Pressing part. Detailed Implementation

[0036] The following combination Figures 1-8 This application will be described in further detail.

[0037] First aspect: This application discloses an overhead insulated cable processing device, including a mounting frame 01 and a first mounting ring 02 and a second mounting ring 03 rotatably connected to the mounting frame 01. A connecting rod 04 is provided between the first mounting ring 02 and the second mounting ring 03, connecting the first mounting ring 02 and the second mounting ring 03. A driving assembly 1 is provided on the mounting frame 01, which is used to drive the first mounting ring 02 to rotate. A wire feeding assembly 2 is provided between the first mounting ring 02 and the second mounting ring 03. During the wire feeding process, the first mounting ring 02 drives the second mounting ring 03 to rotate, and the first mounting ring 02 and the second mounting ring 03 drive the wire feeding assembly 2 to rotate. Then, multiple wires are twisted together to form a cable. At the same time, a tensioning assembly 5 is provided on the second mounting ring 03 to tighten the ends of the twisted wires. A wire combining reel 05 is provided on the mounting frame 01.

[0038] A second wire-passing hole 31 is provided on the second mounting ring 03. Multiple second wire-passing holes 31 are provided and are evenly spaced along the circumference of the second mounting ring 03. Each second wire-passing hole 31 is provided with a limit component (not shown in the figure). The limit component is used to limit the wire pulled out from the wire-laying assembly 2.

[0039] The wire feeding assembly 2 includes a wire feeding frame 22 mounted on a first mounting ring 02 and a second mounting ring 03, a wire feeding shaft 23 rotatably connected to the wire feeding frame 22, and a wire feeding reel 24 fixed on the wire feeding shaft 23. A wire is wound on the wire feeding reel 24. One end of a connecting rod 04 away from the first mounting ring 02 extends out of the second mounting ring 03. A pressure plate is fixedly mounted on the end of the connecting rod 04 extending out of the second mounting ring 03. The pressure plate has a first wire-passing hole 3, and multiple first wire-passing holes 3 are provided on the pressure plate. Multiple second wire-passing holes 31 are the same number as the multiple first wire-passing holes 3, and the multiple first wire-passing holes 3 correspond one-to-one with the multiple second wire-passing holes 31. A third wire-passing hole 32 is provided on the wire feeding frame 22. The wire on the wire feeding reel 24 passes through the third wire-passing hole 32, the second wire-passing hole 31, and the first wire-passing hole 3 in sequence, and finally enters the wire-combining reel 05.

[0040] One end of the wire feeding frame 22 is rotatably connected to a first mounting shaft 61, and the other end is rotatably connected to a second mounting shaft 61. The first mounting shaft 61 is rotatably connected to a first mounting ring 02, and the second mounting shaft 61 is rotatably connected to a second mounting ring 03. The third wire hole 32 passes through the wire feeding frame 22. The third wire hole 32 on the wire feeding frame 22 communicates with the second wire hole 31 on the second mounting ring 03, so that the wires on the wire feeding reel 24 can pass through the third wire hole 32, the second wire hole 31 and the first wire hole 3 in sequence.

[0041] In this embodiment, the wire feeding assembly 2 is set to three groups, and three first wire threading holes 3, two second wire threading holes 31 and three third wire threading holes 32 are also provided. Then, the three wires are twisted together. In other embodiments, the number of wire feeding assemblies 2 can be set according to the actual number of wires to be twisted. Since three second wire threading holes 31 are provided, three groups of limiting assemblies are also provided.

[0042] The limiting assembly includes a first limiting shaft and a second limiting shaft rotatably connected to the second mounting ring 03. Both the first and second limiting shafts are rotatably connected within the second wire-passing hole 31 and are arranged parallel and spaced apart. The distance between the first and second limiting shafts allows the wire on the wire-feeding reel 24 to pass through. The first and second limiting shafts abut against the surface of the wire. During the wire feeding process, both the first and second limiting shafts rotate on the second mounting ring 03, which can limit the wire and reduce the friction between the first and second limiting shafts and the wire.

[0043] A support assembly 4 is provided on the mounting frame 01. The support assembly 4 is used to support the second mounting ring 03. The support assembly 4 includes a support frame 41 fixed on the mounting frame 01 and a plurality of support rollers 42 rotatably connected to the support frame 41. The upper surface of the support frame 41 is set with an arc-shaped structure and is concentrically arranged with the second mounting ring 03. The plurality of support rollers 42 are evenly spaced along the arc-shaped structure. The plurality of support rollers 42 are used to abut against the side of the second mounting ring 03. During the rotation of the first mounting ring 02 driving the connecting rod 04 and the second mounting ring 03, the support rollers 42 can support the second mounting ring 03, making the second mounting ring 03 and the first mounting ring 02 more stable during rotation.

[0044] The drive assembly 1 includes a drive motor 11 fixed on the mounting bracket 01, a drive gear 12 fixed on the output shaft of the drive motor 11, a drive shaft 13 rotatably connected to the mounting bracket 01, and a driven gear 14 fixed on the drive shaft 13. The drive gear 12 and the driven gear 14 mesh, and the drive shaft 13 is fixed on the first mounting ring 02. The first mounting ring 02 is rotatably connected to the mounting bracket 01 through the drive shaft 13. During the process of the drive motor 11 driving the drive gear 12 to rotate, the drive gear 12 drives the driven gear 14 to rotate, the driven gear 14 drives the drive shaft 13 to rotate, and the drive shaft 13 drives the first mounting ring 02 to rotate. Under the action of the connecting rod 04, the second mounting ring 03 is driven to rotate. The first mounting ring 02 and the second mounting ring 03 drive multiple sets of wire feeding assemblies 2 to rotate simultaneously, so that multiple sets of wires are twisted together.

[0045] The tensioning assembly 5 includes a limiting rod 51 fixed on the second mounting ring 03, a first tensioning ring 52 and a second tensioning ring 53 slidably connected to the limiting rod 51, and a tensioning spring 54 disposed between the first tensioning ring 52 and the second tensioning ring 53. The tensioning spring 54 pulls the first tensioning ring 52 and the second tensioning ring 53 closer to each other, and then clamps and fixes the end of the wire in the limiting rod 51. During the twisting process, the end of the wire is tightened, so that the wires in the wire twisting reel 05 can be twisted more tightly.

[0046] The limiting rod 51 is configured with an inclined part 511 and a horizontal part 512. Both the inclined part 511 and the horizontal part 512 are hollow structures with openings at both ends. The opening at the end of the inclined part 511 away from the horizontal part 512 corresponds to the second wire hole 31, allowing the wire in the second wire hole 31 to enter the inclined part 511. The wire then enters the horizontal part 512 from the inclined part 511, and then enters the first wire hole 3 from the horizontal part 512. The wire extending from the first wire hole 3 enters the wire combining reel 05 for twisting, and finally twists into a cable.

[0047] The first tensioning ring 52 includes a mounting rod 521 slidably connected to the limiting rod 51, a tensioning part 522 fixed to the mounting rod 521, and a tensioning plate 523 fixed to the mounting rod 521. A mounting plate 33 is provided on the tensioning plate 523, and the tensioning plate 523 is slidably connected to the mounting plate 33. In this embodiment, the first tensioning ring 52 and the second tensioning ring 53 have the same structure. The specific structure of the second tensioning ring 53 will not be described in detail. The tensioning plate 523 on the second tensioning ring 53 is also slidably connected to the mounting plate 33.

[0048] The two ends of the tension spring 54 are fixedly connected to the two tension plates 523 respectively, so that the tension spring 54 can pull the two tension plates 523 closer to each other. The tension plates 523 that are close to each other drive the tensioning parts 522 to be close to each other, so that the two tensioning parts 522 abut against the surface of the wire, and the end of the wire is clamped under the action of the tension spring 54.

[0049] To improve the clamping strength of the first tensioning ring 52 and the second tensioning ring 53 on the conductor, a rubber pad is provided on the tensioning part 522 of the first tensioning ring 52 and a rubber pad is also provided on the tensioning part 522 of the second tensioning ring 53. When the conductor end is clamped, the two rubber pads are in a compressed state.

[0050] A spreading component 6 is provided on the second mounting ring 03. The spreading component 6 is used to move the first tensioning ring 52 towards the second tensioning ring 53. Then, when the wire is not detached from the wire release reel 24, the first tensioning ring 52 and the second tensioning ring 53 do not clamp the wire. A linkage component 7 is provided on the mounting plate 33. The linkage component 7 is used to move the first tensioning ring 52 and the second tensioning ring 53 in opposite directions. When the first tensioning ring 52 is pushed away from the limit rod 51 by the spreading component 6, the second tensioning ring 53 also moves away from the limit rod 51. At this time, it is convenient for the wire to pass between the first tensioning ring 52 and the second tensioning ring 53.

[0051] The spreading assembly 6 includes a mounting shaft 61 rotatably connected to the second mounting ring 03 and a spreading plate 62 disposed on the mounting shaft 61. The spreading plate 62 is used to spread the first tension ring 52 and the second tension ring 53, so that the tension spring 54 is in a stretched state. The spreading plate 62 includes a mounting part 621 and a spreading part 622. The mounting part 621 is fixedly mounted on the mounting shaft 61, and the spreading part 622 is fixed on the mounting part 621. The spreading part 622 abuts against the inner side of the mounting plate 33 on the first tension ring 52. Due to the setting of the linkage assembly 7, when the first tension ring 52 moves away from the limit rod 51, the second tension ring 53 also moves away from the limit rod 51, so that the first tension ring 52 and the second tension ring 53 are in an open state.

[0052] The linkage assembly 7 includes a first linkage rack 71 fixed to the first tension ring 52, a second linkage rack 72 fixed to the second tension ring 53, and a rotating gear 73 rotatably connected to the mounting plate 33. The rotating gear 73 meshes with both the first linkage rack 71 and the second linkage rack 72. When the first tension ring 52 moves, the first linkage rack 71 moves, driving the rotating gear 73 to rotate. The rotating gear 73 then drives the second linkage rack 72 to rotate, causing the second tension ring 53 to move in the opposite direction. When the first tension ring 52 moves towards the limiting rod 51, the second tension ring 53 moves towards the limiting rod 51, thereby clamping the wire inside the limiting rod 51.

[0053] A toggle assembly 8 is provided on the second mounting ring 03. The toggle assembly 8 is used to toggle the mounting shaft 61, so that the mounting shaft 61 drives the expansion plate 62 to rotate. The expansion plate 62 is no longer in contact with the first tension ring 52. The first tension ring 52 moves closer to the limit rod 51 under the action of the tension spring 54. At the same time, the second tension ring 53 also moves closer to the limit rod 51. The first tension ring 52 and the second tension ring 53 clamp the wire inside the limit rod 51.

[0054] A reset torsion spring 34 is fitted on the mounting shaft 61. One end of the reset torsion spring 34 is fixed on the second mounting ring 03, and the other end is fixed on the mounting shaft 61. After the actuating component 8 drives the spreading plate 62 to rotate away from the limiting rod 51, the spreading plate 62 and the first tensioning ring 52 no longer abut. When the spreading plate 62 rotates in the opposite direction, the reset torsion spring 34 drives the mounting shaft 61 and the first tensioning ring 52 to reset, so that the spreading component 6 can spread and limit the first tensioning ring 52.

[0055] The actuating assembly 8 includes an actuating shaft 81 rotatably connected to the second mounting ring 03, a sealing plate 82 fixed to the actuating shaft 81, an actuating plate 83 fixed to the actuating shaft 81, and an abutment plate 84 fixed to the mounting shaft 61. The abutment plate 84 abuts against the actuating plate 83. A toctuating spring 35 is provided on the second mounting ring 03. The toctuating spring 35 is a tension spring. One end of the toctuating spring 35 is fixed to the second mounting ring 03, and the other end is fixed to the actuating plate 83. The toctuating spring 35 is used to drive the actuating plate 83 to rotate towards the second tensioning ring 53. At this time, the sealing plate 82 will block the second wire hole 31.

[0056] After the wire on the wire reel 24 is completely detached, the end of the wire will detach from the third wire hole 32 and then from the second wire hole 31. After the wire detaches from the second wire hole 31, the actuating plate 83 will rotate under the action of the actuating spring 35. The actuating plate 83 will drive the actuating shaft 81 and the sealing plate 82 to rotate. The sealing plate 82 will seal the second wire hole 31. When a wire passes through the second wire hole 31, the end of the sealing plate 82 away from the actuating shaft 81 will abut against the surface of the wire. When no wire passes through the second wire hole 31... The actuating spring 35 drives the actuating plate 83 to rotate, the actuating plate 83 pushes the abutment plate 84 to rotate, the abutment plate 84 drives the mounting shaft 61 and the spreading plate 62 to rotate, the spreading part 622 will disengage from the inner side of the tension plate 523, at this time, under the action of the tension spring 54, the first tension ring 52 moves towards the limit rod 51, and under the action of the linkage component 7, the second tension ring 53 also moves towards the limit rod 51. Then, under the action of the tension spring 54, the first tension ring 52 and the second tension ring 53 are clamped at the end of the wire.

[0057] A pressing plate 9 is provided on the limiting rod 51. The pressing plate 9 is used to press the first tensioning plate 523 and the second tensioning plate 523 together, thereby making the first tensioning plate 523 and the second tensioning plate 523 pressed on the end of the wire better fixed. At the same time, it increases the friction between the first tensioning plate 523 and the second tensioning plate 523 and the limiting rod 51, so that the wire between the tensioning assembly 5 and the wire bonding reel 05 is in a tensioned state, thereby making the wire twisting effect in the wire bonding reel 05 better.

[0058] The clamping plate 9 includes a guide portion 91 and a clamping portion 92. The guide portion 91 and the clamping portion 92 are spaced apart from the side of the limiting rod 51. The end of the guide portion 91 away from the clamping portion 92 is inclined away from the limiting rod 51, so that the first tensioning plate 523 can move between the clamping plate 9 and the limiting rod 51. The clamping portion 92 presses the first tensioning plate 523 and the second tensioning plate 523 against the side of the limiting rod 51. At this time, the friction between the end of the wire and the limiting rod 51 can be increased. During the twisting process, the wire is kept taut at all times, and finally the twisting of the end of the wire is tighter.

[0059] A push plate 36 is provided on the limit rod 51, and a push slope 37 is provided on the push plate 36. When the clamping part 92 disengages from the first tension ring 52 and the second tension ring 53, the inner side of the tension plate 523 abuts against the push slope 37. The push slope 37 pushes the first tension ring 52 and the second tension ring 53 away from each other. At this time, the first tension ring 52 and the second tension ring 53 disengage from the end of the wire, and the wire after disengagement enters the wire conduit 05.

[0060] The implementation principle of an overhead insulated cable processing device according to an embodiment of this application is as follows: multiple conductors are respectively wound on the wire feeding reel 24, and then pass through the third wire feeding hole 32 and the second wire feeding hole 31 in sequence, with the second wire feeding hole 31 in the open state. The conductors enter the limiting rod 51 from the second wire feeding hole 31, enter the first wire feeding hole 3 from the limiting rod 51, and then enter the wire combining reel 05 from the first wire feeding hole 3. During the rotation of the wire feeding frame 22, the multiple conductors are twisted together.

[0061] After the wire on the wire reel 24 is completely detached, the end of the wire will detach from the third wire hole 32 and then from the second wire hole 31. After the wire detaches from the second wire hole 31, since there is no wire in the second wire hole 31, the actuating plate 83 will rotate under the action of the actuating spring 35. The actuating plate 83 will drive the actuating shaft 81 and the sealing plate 82 to rotate, and the sealing plate 82 will seal the second wire hole 31. When there is a wire passing through the second wire hole 31, the end of the sealing plate 82 away from the actuating shaft 81 will abut against the surface of the wire. When there is no wire passing through the second wire hole 31, the actuating spring 35 will drive the actuating plate 83 to rotate, and the actuating plate 83 will push the abutting plate 84 to rotate. The abutting plate 84 will drive the mounting shaft 61 and the spreading plate 62 to rotate. The spreading part 622 will detach from the inner side of the tensioning plate 523. At this time, under the action of the tensioning spring 54, the first tensioning ring 52 will move towards the limit rod 51.

[0062] Under the action of the linkage component 7, the second tensioning ring 53 also moves closer to the limiting rod 51. Then, under the action of the tension spring 54, the first tensioning ring 52 and the second tensioning ring 53 are clamped to the end of the wire. Then, the first tensioning ring 52 and the second tensioning ring 53 move simultaneously with the wire. The first tensioning ring 52 and the second tensioning ring 53 slide on the limiting rod 51 and enter between the limiting rod 51 and the pressing part 92. The pressing part 92 presses the first tensioning plate 523 and the second tensioning plate 523 against the limiting rod 51. On the side, this can increase the friction between the end of the wire and the limiting rod 51, keeping the wire taut during the twisting process, and finally making the twisting of the wire end tighter; when the pressing part 92 disengages from the first tensioning ring 52 and the second tensioning ring 53, the inner side of the tensioning plate 523 abuts against the pushing inclined surface 37, and the pushing inclined surface 37 pushes the first tensioning ring 52 and the second tensioning ring 53 away from each other. At this time, the first tensioning ring 52 and the second tensioning ring 53 disengage from the end of the wire, and finally the disengaged wire enters the wire conduit 05.

[0063] The second aspect: An overhead insulated cable includes a cable sheath extruded by an extruder and an overhead insulated cable core made using overhead insulated cable processing equipment. The cable sheath is sleeved on the cable core, and the material of the cable sheath is polyvinyl chloride (PVC).

[0064] 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. An aerial insulated cable processing device, comprising a mounting frame (01) and a first mounting ring (02) and a second mounting ring (03) rotatably connected to the mounting frame (01), characterized in that: The mounting frame (01) is provided with a driving assembly (1) for driving the first mounting ring (02) to rotate, the first mounting ring (02) and the second mounting ring (03) are provided with a pay-off assembly (2), and the first mounting ring (02) and the second mounting ring (03) drive the pay-off assembly (2) to rotate, so that a plurality of wires are stranded together, and the plurality of stranded wires form a cable; the second mounting ring (03) is provided with a tensioning assembly (5) for tensioning the ends of the stranded wires, the tensioning assembly (5) comprises a limiting rod (51) fixed on the second mounting ring (03), a first tensioning ring (52) and a second tensioning ring (53) slidably connected on the limiting rod (51), and a tensioning spring (54) arranged between the first tensioning ring (52) and the second tensioning ring (53), the tensioning spring (54) pulls the first tensioning ring (52) and the second tensioning ring (53) to approach each other, and clamps and fixes the wire ends in the limiting rod (51); the second mounting ring (03) is provided with a spreading assembly (6) for moving the first tensioning ring (52) to the direction of the second tensioning ring (53), and when the wire does not separate from the pay-off disc (24), the first tensioning ring (52) and the second tensioning ring (53) do not clamp the wire.

2. An aerial insulated cable processing apparatus according to claim 1, characterized in that: The first tensioning ring (52) is provided with a mounting plate (33), the mounting plate (33) is provided with a linkage assembly (7) for moving the first tensioning ring (52) and the second tensioning ring (53) in opposite directions, when the first tensioning ring (52) is pushed by the spreading assembly (6) to move away from the limiting rod (51), the second tensioning ring (53) also moves away from the limiting rod (51), the linkage assembly (7) comprises a first linkage rack (71) fixed on the first tensioning ring (52), a second linkage rack (72) fixed on the second tensioning ring (53), and a rotating gear (73) rotatably connected to the mounting plate (33), the rotating gear (73) is engaged with the first linkage rack (71) and the second linkage rack (72) at the same time.

3. An aerial insulated cable processing apparatus according to claim 2, characterized in that: The spreading assembly (6) comprises a mounting shaft (61) rotatably connected to the second mounting ring (03) and a spreading plate (62) arranged on the mounting shaft (61), the spreading plate (62) is used for spreading the first tensioning ring (52) and the second tensioning ring (53), so that the tensioning spring (54) is in a stretched state, the spreading plate (62) comprises a mounting portion (621) and a spreading portion (622), the mounting portion (621) is fixedly mounted on the mounting shaft (61), the spreading portion (622) is fixed on the mounting portion (621), and the spreading portion (622) abuts on the inner side of the mounting plate (33) on the first tensioning ring (52); the second mounting ring (03) is provided with a pushing assembly (8) for pushing the mounting shaft (61); the pushing assembly (8) drives the mounting shaft (61) to rotate the spreading plate (62), and the spreading plate (62) no longer contacts the first tensioning ring (52).

4. An aerial insulated cable processing apparatus according to claim 3, characterized in that: The toggle assembly (8) comprises a toggle shaft (81) rotatably connected to the second mounting ring (03), a blocking plate (82) fixed to the toggle shaft (81), a toggle plate (83) fixed to the toggle shaft (81), and an abutting plate (84) fixed to the mounting shaft (61), the abutting plate (84) abutting on the toggle plate (83), the second mounting ring (03) is provided with a toggle spring (35), one end of the toggle spring (35) is fixed to the second mounting ring (03), the other end is fixed to the toggle plate (83), and the toggle spring (35) is used to drive the toggle plate (83) to rotate towards the second tension ring (53).

5. An aerial insulated cable processing apparatus according to claim 3, characterized in that: The mounting shaft (61) is provided with a reset torsion spring (34) for resetting the mounting shaft (61) and the first tension ring (52), one end of the reset torsion spring (34) is fixed to the second mounting ring (03), and the other end is fixed to the mounting shaft (61).

6. An aerial insulated cable processing apparatus according to claim 1, characterized in that: The limiting rod (51) is provided with a pressing plate (9) for pressing the first tension plate (523) and the second tension plate (523), the pressing plate (9) comprises a guide portion (91) and a pressing portion (92), the guide portion (91) and the pressing portion (92) are arranged apart from the side surface of the limiting rod (51), and the end of the guide portion (91) away from the pressing portion (92) is inclined away from the limiting rod (51).

7. An aerial insulated cable processing apparatus according to claim 6, characterized in that: The limiting rod (51) is provided with a push plate (36), the push plate (36) is provided with a push inclined surface (37), when the pressing portion (92) is separated from the first tension ring (52) and the second tension ring (53), the inner side surface of the tension plate (523) abuts on the push inclined surface (37), and the push inclined surface (37) pushes the first tension ring (52) and the second tension ring (53) away from each other.

8. An aerial insulated cable processing apparatus according to claim 1, characterized in that: The pay-off assembly (2) comprises a pay-off frame (22) arranged on the first mounting ring (02) and the second mounting ring (03), a pay-off shaft (23) rotatably connected to the pay-off frame (22), and a pay-off disc (24) fixed to the pay-off shaft (23), and the pay-off disc (24) is wound with a wire.

9. An aerial insulated cable processing apparatus according to claim 1, characterized in that: The mounting frame (01) is provided with a supporting assembly (4) for supporting the second mounting ring (03), the supporting assembly (4) comprises a supporting frame (41) fixed to the mounting frame (01) and a plurality of supporting rollers (42) rotatably connected to the supporting frame (41), and the plurality of supporting rollers (42) are used to abut on the side surface of the second mounting ring (03).

10. An aerial insulated electrical cable, characterized by: The cable sheath is extruded by an extruder, and the aerial insulated cable core is made by using the aerial insulated cable processing equipment of claim 1, and the material of the cable sheath is polyvinyl chloride (PVC).

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