Instrument cable, cable processing equipment and cable processing method

Abstract

The invention discloses an instrument cable, cable processing equipment and a cable processing method, and relates to the technical field of instrument cables.The instrument cable processing equipment comprises a frame body, a stranding cage used for winding an oil steel wire on the cable is rotationally connected to the interior of the frame body, and the instrument cable processing equipment further comprises a transmission mechanism and a triggering mechanism; the transmission mechanism comprises an inner pipe slidably connected to the interior of the stranding cage, a first spring is arranged between the inner pipe and the stranding cage, one end of the frame body is rotationally connected with a transmission pipe, a motor assembly used for driving the transmission pipe to rotate is fixedly installed at one end of the frame body, and a brake assembly is arranged between the frame body and the inner pipe. The stranding cage is braked through the friction force between the first friction disc and the second friction disc, and the design can greatly reduce continuous rotation of the stranding cage under the inertia effect after the stranding cage is shut down, so that safety accidents caused by collision and winding of broken oil steel wires and surrounding objects are avoided, workers can conveniently and rapidly overhaul and recover production, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of instrument cables, and particularly to an instrument cable, a cable processing device and a cable processing method. Background Art

[0002] Instrument communication cables are mainly used for signal transmission in systems such as electronic computers, monitoring circuits, and automation control in industrial environments. The core is to ensure accurate and stable signal transmission. Therefore, high requirements are imposed on the anti-interference performance and mechanical protection performance of the cables. In order to improve the mechanical strength of instrument cables, armoring is required.

[0003] Armoring is a processing technology for wrapping a metal protection structure around a cable. The core function is to enhance the mechanical strength and environmental tolerance of the cable. The armoring process of instrument cables is generally carried out by a stranding machine. Existing stranding machines mainly consist of a stranding cage and a pay-off reel. The stranding cage drives the pay-off reel to perform a circular motion, so that the steel wire on the pay-off reel is spirally wound around the cable drawn out from the stranding cage to form a finished cable.

[0004] During the operation of the stranding machine, the steel wire released from the pay-off reel is always in a taut state. When the relevant components of the wire guide wheel inside the stranding machine are worn, the tension on the steel wire will fluctuate, resulting in fatigue damage or even breakage of the steel wire. In the existing device, the switch of the motor is arranged outside the stranding machine and an elastic trigger is abutted against the steel wire. When the steel wire breaks, the elastic trigger moves radially outwards. Then, when the stranding machine continues to rotate, it will drive the elastic trigger to contact the switch, realizing automatic shutdown.

[0005] However, since there are multiple pay-off reels wound with steel wires installed inside the stranding cage and the self-weight is extremely large, after shutdown, the stranding cage will still continue to rotate under the action of inertia, resulting in the broken steel wire colliding and entangling with surrounding components, aggravating equipment damage and easily causing safety accidents. Moreover, the impact vibration received during the inertial rotation of the stranding cage will also be transmitted to the motor drive shaft, damaging the motor. Not only that, when the elastic trigger in the existing device is triggered at the position just crossing the switch, the elastic trigger needs to rotate one week with the stranding cage before contacting the switch to stop the equipment. Therefore, the response speed of wire breakage shutdown is slow and uncontrollable, and the safety is relatively low. Summary of the Invention

[0006] The purpose of the present invention is to propose an instrument cable, a cable processing device and a cable processing method to solve the problems that after wire breakage shutdown of the traditional stranding machine, the stranding cage will still rotate under the action of inertia, easily damaging surrounding equipment and causing safety accidents, and the response speed of wire breakage shutdown is slow and uncontrollable.

[0007] To achieve the above objectives, the present invention employs the following technology: an instrument cable processing equipment, comprising a frame, an internally rotatably connected auger for winding steel wire onto a cable, a transmission mechanism and a triggering mechanism, the transmission mechanism comprising an inner tube slidably connected inside the auger, a first spring disposed between the inner tube and the auger, a transmission tube rotatably connected to one end of the frame, a motor assembly for driving the transmission tube to rotate fixedly mounted at one end of the frame, one end of the inner tube slidably connected to the transmission tube via an insert, and a limit unit mounted at the other end, a pressure-contact switch mounted at one end of the frame, and a braking assembly disposed between the frame and the inner tube; The braking assembly includes a friction disc one fixed to one end of the inner tube, and a friction disc two slidably connected to one end of the frame via a damper; When the oil steel wire breaks, the inner tube moves axially under the elastic force of the first spring, causing the insert to slide out of the groove of the transmission tube; at the same time, it causes friction disc one to come into contact with friction disc two and brake through friction.

[0008] As a further description of the instrument cable processing equipment described above: one end of the winch is fixed with an extension tube, a branching disc rotatably connected to the frame is fixed on the extension tube, five branching discs are fixed on the extension tube, a tile-shaped hole branching ring is fixed at the end of the extension tube, and a pressing mold and an adjustable guide wheel straightener are fixedly installed on the frame.

[0009] As a further description of the instrument cable processing equipment described above: the triggering mechanism includes elastic support units corresponding one-to-one with the oil steel wires, a push rod is slidably connected inside the distribution plate, and a locking unit is provided between the extension tube and the inner tube.

[0010] As a further description of the instrument cable processing equipment described above: the elastic support unit includes a slide frame that is slidably connected inside the distributor and fixed to the push rod, a roller is rotatably connected inside the slide frame, and a second spring is provided between the slide frame and the inner wall of the distributor.

[0011] As a further description of the instrument cable processing equipment described above: the locking unit includes a mounting plate rotatably connected inside the extension tube, an inclined block corresponding to the elastic support unit is fixed to the outside of the mounting plate, a stop block is fixed inside the extension tube, a tension spring is fixed between the mounting plate and the inner wall of the extension tube, and a counterweight plate is fixed on the mounting plate.

[0012] As a further description of the instrument cable processing equipment described above: the limiting unit includes a support block elastically connected to the inner tube, and a steel ball is embedded on one side of the support block.

[0013] As a further description of the instrument cable processing equipment described above, it also includes a fixing structure, which includes an installation tube fixed inside the extension tube, elastic clamps symmetrically arranged on the installation tube, an extrusion block fixed on the outer wall of the inner tube, and a clamp plate that penetrates the extension tube is elastically connected inside one of the branching circular plates.

[0014] As a further description of the instrument cable processing equipment described above, it also includes a branching guide roller structure, which includes a mounting bracket fixed on an extension tube, and a concave guide roller and a bearing guide roller are rotatably connected inside the mounting bracket.

[0015] The instrument cable processing method based on the above-mentioned instrument cable processing equipment includes the following steps: S1. Pass the oiled steel wire on the winch through the wire distribution disc, wire distribution disc, wire distribution guide pressure wheel structure and tile-shaped hole wire distribution ring in sequence. The motor assembly drives the winch to rotate through the transmission tube and inner tube, so that the oiled steel wire is wrapped around the outside of the cable. S2. When the oil steel wire breaks, the elastic support unit in contact with it pushes the inclined block through the push rod, causing the mounting plate and the inner tube to deflect relative to each other, and the support block deflects to align with the notch of the mounting plate. S3. When the support block loses the support of the mounting plate, the inner tube moves axially under the elastic force of the first spring, causing the insert to slide out of the groove of the transmission tube, and at the same time causing friction disc one to contact friction disc two for friction braking. S4. The axial movement of the inner tube pushes the outer inclined surface of the elastic clamp, causing the elastic clamp to bend inward and clamp the cable. S5. The axial movement of the inner tube pushes the clamping plate outward through the extrusion block, clamping the oil steel wire in the dividing hole of the dividing plate.

[0016] The instrument cable processed by the above-mentioned instrument cable processing equipment includes multiple copper conductor cores covered with cross-linked polyethylene layers, the copper conductor cores are cabled and wrapped with polyester film tape and aluminum-plastic composite film, the aluminum-plastic composite film is extruded with a PVC inner lining layer, multiple oil steel wires are wrapped around the PVC inner lining layer, and the oil steel wires are extruded with a PVC outer sheath.

[0017] In summary, due to the adoption of the above-mentioned technology in the instrument cable, cable processing equipment, and cable processing method, the beneficial effects of this invention are: 1. When the oil-coated steel wire breaks, this application triggers the axial movement of the inner tube through a triggering mechanism, causing the insert on the inner tube to disengage from the transmission tube groove, thus releasing the transmission between the transmission tube and the inner tube. The movement of the inner tube causes friction disc one to contact friction disc two, and the friction between friction disc one and friction disc two brakes the winch. This design can significantly reduce the continued rotation of the winch under inertia after it stops, thereby preventing the broken oil-coated steel wire from colliding and entangled with surrounding objects, causing safety accidents, and facilitating quick maintenance and production recovery by staff, thus accelerating production efficiency. Moreover, compared to existing devices that stop the winch by triggering a switch, this application achieves the effect of automatically stopping the winch by disengaging the inner tube from the transmission tube. This design can prevent the vibration generated by the winch during braking from being transmitted to the motor assembly, thus protecting the motor assembly from damage.

[0018] 2. When the oil-coated steel wire breaks, the elastic support unit in contact with it loses the tension support of the oil-coated steel wire and moves towards the center point of the dividing plate under the elastic force. This causes the push rod to squeeze the inclined surface of the inclined block, causing the mounting plate to deflect and align the notch of the mounting plate with the support block. As a result, the mounting plate no longer supports the support block, and the inner tube moves axially under the elastic force of the first spring. Compared with the existing device, this application ensures that the speed of triggering the winch to stop is consistent each time the oil-coated steel wire breaks, and it also speeds up the shutdown response. This design not only significantly reduces safety risks, but also allows operators to predict the downtime of the equipment after the oil-coated steel wire breaks, further improving operational safety.

[0019] 3. By increasing the weight of the mounting plate with a counterweight plate, the rotational inertia of the mounting plate can be increased. When the rotation of the winch is obstructed or suddenly jammed due to external factors, the mounting plate will continue to rotate under the action of inertia, thereby aligning the notch with the limit unit, triggering the transmission mechanism to stop and brake the winch. This design is used to further improve the safety of the device and provide effective protection for safe production.

[0020] 4. Existing instrument cables typically use thin or thick round steel wires for armoring, which generally have limited tensile strength and exert significant pressure on the cable under stress, easily damaging the inner lining layer. This application uses flat oil-coated steel wire armored cables. After armoring, the oil-coated steel wires are evenly distributed along the surface of the PVC inner lining layer, resulting in a round cable appearance and an oil-coated steel wire coverage rate of ≥%. This effectively improves the cable's mechanical strength. Furthermore, the oil-coated steel wires are in full contact with the PVC inner lining layer, thus reducing the pressure exerted on the cable under stress. In addition, slippage between the oil-coated steel wires and the PVC inner lining layer is less likely to occur, thereby improving the cable's protective effect. Attached Figure Description

[0021] Figure 1 A first overall schematic diagram according to the present invention is shown; Figure 2A second overall schematic diagram according to the present invention is shown; Figure 3 The present invention is shown Figure 2 Enlarged view of point A in the middle; Figure 4 A cross-sectional view of the winch according to the present invention is shown; Figure 5 The present invention is shown Figure 4 Enlarged view at point B in the middle; Figure 6 The present invention is shown Figure 4 Enlarged view at point C; Figure 7 The present invention is shown Figure 4 Enlarged view at point D; Figure 8 A schematic diagram of the oil-filled steel wire according to the present invention is shown; Figure 9 A cross-sectional view of the extension tube according to the present invention is shown; Figure 10 The present invention is shown Figure 9 Enlarged view at point E in the middle; Figure 11 A schematic diagram of the cable cross-section according to the present invention is shown.

[0022] Legend: 10. Frame; 11. Screw cage; 12. Extension pipe; 13. Distribution plate; 14. Distribution disc; 15. Tile-shaped hole distribution ring; 16. Pressing die; 17. Guide wheel straightener; 20. Transmission mechanism; 21. Inner tube; 22. First spring; 23. Transmission tube; 24. Motor assembly; 25. Braking assembly; 251. Friction disc one; 252. Friction disc two; 253. Damper; 26. Hydraulic rod; 27. Pressure switch; 28. Limiting unit; 281. Support block; 282. Steel ball; 30. Triggering mechanism; 31. Elastic support unit; 311. Slide frame; 312. Roller; 313. Second spring; 32. Push rod; 33. Locking unit; 331. Mounting plate; 332. Tension spring; 333. Inclined block; 334. Stop block; 34. Counterweight plate; 40. Fixed structure; 41. Mounting tube; 42. Elastic clamping block; 43. Compression block; 44. Clamping plate; 50. Branching guide roller structure; 51. Mounting bracket; 52. Concave guide roller; 53. Bearing guide roller; 61. Copper conductor core; 62. Cross-linked polyethylene layer; 63. Polyester film wrapping; 64. Aluminum-plastic composite film; 65. Tinned copper wire grounding wire; 66. PVC inner lining layer; 67. Oil-coated steel wire; 68. PVC outer sheath. Detailed Implementation

[0023] The following will describe clearly and completely the technical specifications of the present invention, including an instrument cable, cable processing equipment, and cable processing method, with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1-10 As shown, the present invention provides an instrument cable processing device, including a frame 10. A winch 11 for winding oil-coated steel wire 67 onto a cable is rotatably connected inside the frame 10. An extension tube 12 is fixed to one end of the winch 11. A wire distributor 13, rotatably connected to the frame 10, is fixed to the extension tube 12. Five wire distributor circular plates 14 are also fixed to the extension tube 12. The five wire distributor circular plates 14 are unequally spaced and have different diameters. The tension and torsional pitch of the oil-coated steel wire 67 at different wire distributor circular plates 14... Unlike other components, the stress of the oil steel wire 67 can be gradually eliminated. The end of the extension tube 12 is fixed with a tile-shaped hole dividing ring 15. The frame 10 is fixedly installed with a pressing mold 16 and an adjustable guide wheel straightener 17. The axes of the auger 11, extension tube 12, dividing plate 13, dividing plate 14, tile-shaped hole dividing ring 15 and pressing mold 16 are coincident. The number of dividing holes on the dividing plate 13, dividing plate 14 and tile-shaped hole dividing ring 15 is the same, and the dividing holes of the tile-shaped hole dividing ring 15 are tile-shaped. The inside of the winch 11 is equipped with coils wound with oiled steel wire 67. The number of coils is the same as the number of branch holes of the branching plate 13. During cable armoring, the oiled steel wire 67 on each coil is pulled out and passed through the branching plate 13, the five branching round plates 14 and the branching holes of the tile-shaped branching ring 15 in sequence. The cable to be armored passes through the winch 11, the extension tube 12 and the pressing die 16 in sequence, and moves slowly axially under the drive of the external traction mechanism. At the same time, the winch 11 rotates, which drives the extension tube 12, the branching plate 13, the branching round plate 14 and the tile-shaped branching ring 15 to rotate, so that the oiled steel wire 67 spirally winds and wraps around the outside of the cable, realizing the cable armoring process. After the oiled steel wire 67 is wrapped around the cable, it passes through the pressing die 16. The pressing die 16 limits and squeezes the oiled steel wire 67 and the cable to improve the tightness between the oiled steel wire 67 and the cable.

[0025] Then, the guide wheel straightener 17 presses the cable wrapped with oil steel wire 67 to eliminate the prestress remaining on the cable by the oil steel wire 67, so as to prevent the cable from bending in a serpentine manner after passing the traction wheel and make the cable appear straight.

[0026] Reference Figures 3-6In order to automatically stop the winch 11 when the oil steel wire 67 breaks and avoid causing a safety accident, a transmission mechanism 20 and a triggering mechanism 30 are provided between the frame 10 and the winch 11. The transmission mechanism 20 includes an inner tube 21 slidably connected inside the winch 11, a first spring 22 between the inner tube 21 and the winch 11, a transmission tube 23 rotatably connected to the end of the frame 10 away from the extension tube 12, a motor assembly 24 fixedly installed at one end of the frame 10, the drive shaft of the motor assembly 24 and the transmission tube 23 being connected by a belt and a pulley, the end of the inner tube 21 away from the extension tube 12 extending out of the winch 11 and into the transmission tube 23, an insert fixed on the inner tube 21 and slidably connected to the inner wall groove of the transmission tube 23 through the insert, and a limit unit 28 installed at the end of the winch 11 near the extension tube 12; When the steel wire 67 breaks, the support of the limiting unit 28 is released by the triggering mechanism 30. At this time, the elastic force of the first spring 22 drives the inner tube 21 to move axially in the direction of the extension tube 12. During the movement, the inner tube 21 and the winch 11 are always slidably connected. The axial movement of the inner tube 21 will cause the insert to disengage from the groove of the transmission tube 23. The motor assembly 24 drives the transmission tube 23 to rotate and no longer drives the inner tube 21 to rotate through the insert, thereby causing the winch 11 to lose the drive of the motor assembly 24 and realize the automatic stop of the winch 11.

[0027] Even after the winch 11 loses the drive of the motor assembly 24, it will still rotate under inertia. During this process, the disconnected oil steel wire 67 is prone to collision and entanglement with surrounding equipment, causing the winch 11 to vibrate. This application stops the winch 11 by disengaging the inner tube 21 from the transmission tube 23, which can prevent the vibration of the winch 11 from being transmitted to the transmission tube 23 and the motor assembly 24 when it rotates inertia, thereby protecting the motor assembly 24 from damage.

[0028] Reference Figure 3 , Figure 4 and Figure 5 In order to quickly brake the winch 11 after it stops, a braking assembly 25 is provided between the frame 10 and the inner tube 21. The braking assembly 25 includes a friction disc 251 fixed to one end of the inner tube 21, a damper 253 fixedly installed at one end of the frame 10, and a friction disc 252 fixed to the movable end of the damper 253. When the inner tube 21 moves axially, it drives the friction disc 251 to move, so that the friction disc 251 contacts the friction disc 252. The friction between the friction disc 251 and the friction disc 252 will prevent the inner tube 21 and the winch 11 from continuing to rotate, thereby achieving the effect of braking the winch 11. The damper 253 is used to dampen and buffer the friction disc 251, so that the friction disc 251 and the friction disc 252 are more stable when they come into contact.

[0029] A pressure switch 27 is fixedly installed at one end of the frame 10 near the transmission tube 23. The pressure switch 27 is used to control the power supply of the motor assembly 24, the wire feeding reel inside the winch 11 and the external traction mechanism, to suppress the chain reaction caused by the breakage of the oil steel wire 67, and the friction disc 251 can trigger the pressure switch 27 when it moves with the inner tube 21. A hydraulic rod 26 is fixedly installed at one end of the frame 10 near the friction disc 251. By controlling the extension of the hydraulic rod 26, the friction disc 251 can be pushed, which will drive the inner tube 21 to reset so that the device can resume operation.

[0030] Reference Figure 6 , Figure 9 and Figure 10 To expedite the shutdown response time of the winch 11 when the oil steel wire 67 breaks, the triggering mechanism 30 includes an elastic support unit 31 corresponding to the oil steel wire 67. The elastic support unit 31 is installed in the branching hole of the branching plate 13. A push rod 32 is slidably connected inside the branching plate 13. The elastic support unit 31 includes a sliding frame 311 slidably connected inside the branching plate 13 and fixed to the push rod 32. A roller 312 is rotatably connected inside the sliding frame 311. A second spring 313 is provided between the sliding frame 311 and the inner wall of the branching plate 13. During cable processing, the oil steel wire 67 passes through the inside of the sliding frame 311. At this time, the oil steel wire 67 is in a taut state. The oil steel wire 67 is in close contact with the roller 312 and applies pressure to the roller 312 in the direction away from the center point of the branching plate 13, so that the second spring 313 is compressed. The elastic support unit 31 monitors whether the oil steel wire 67 breaks through the elastic force. A locking unit 33 for supporting the limiting unit 28 is provided between the extension tube 12 and the inner tube 21. The locking unit 33 includes a mounting plate 331 rotatably connected inside the extension tube 12. An inclined block 333 corresponding to the elastic support unit 31 is fixed to the outside of the mounting plate 331. A stop block 334 is fixed inside the extension tube 12. A tension spring 332 is fixed between the mounting plate 331 and the inner wall of the extension tube 12. Figure 9 and Figure 10 As shown, the mounting plate 331 cannot rotate counterclockwise due to the obstruction of the stop 334. At this time, the tension spring 332 is in a stretched state. Under the elastic force of the tension spring 332, the mounting plate 331 is prevented from deflecting on its own inside the extension tube 12. The limiting unit 28 includes a support block 281 elastically connected to the inner tube 21. A steel ball 282 is embedded on one side of the support block 281. The steel ball 282 is in contact with the mounting plate 331. When the oil wire 67 is not broken, the mounting plate 331 supports the limiting unit 28, and the inner tube 21 cannot move axially relative to the winch 11. At this time, the first spring 22 is in a compressed and stored state. The inner edge of the mounting disc 331 is provided with a notch. When the oil steel wire 67 breaks, the roller 312 in contact with it loses the support of the oil steel wire 67. The elastic force of the second spring 313 drives the sliding frame 311 and the push rod 32 to move towards the mounting disc 331, causing the push rod 32 to press the inclined surface of the inclined block 333, so that the mounting disc 331 and the inner tube 21 deflect relatively. The notch of the mounting disc 331 deflects to align with the support block 281. At this time, the mounting disc 331 no longer supports the limiting unit 28, and the first spring 22 can drive the inner tube 21 and the limiting unit 28 to move axially through the elastic force, triggering the braking component 25 to brake the cage 11 and disengaging the transmission tube 23 and the inner tube 21 from the transmission.

[0031] Based on the above design, when the oil steel wire 67 breaks, the corresponding elastic support unit 31 can press the inclined block 333 through the push rod 32, drive the mounting disc 331 to deflect, release the support of the limiting unit 28 and the inner tube 21, and stop the cage 11 through the transmission mechanism 20. Compared with the existing device, this design not only makes the response time of the cage 11 to stop controllable, but also speeds up the response time of the cage 11 to stop, effectively avoiding the continuous expansion of the fault.

[0032] A counterweight plate 34 is fixed on the mounting disc 331. By increasing the weight of the mounting disc 331 through the counterweight plate 34, the rotational inertia of the mounting disc 331 can be increased. The rotation of the cage 11 drives the extension tube 12 to rotate. The extension tube 12 drives the inclined block 333 and the mounting disc 331 to rotate through the stop block 334. When the rotation of the cage 11 is blocked or suddenly jammed due to external factors, the mounting disc 331 will continue to rotate under the action of inertia, so that the notch aligns with the limiting unit 28, triggering the transmission mechanism 20 to stop and brake the cage 11. This design is used to further improve the safety of the device and provide an effective guarantee for safe production.

[0033] Refer to Figure 9 , a fixing structure 40 is provided on the extension tube 12. The fixing structure 40 includes a mounting tube 41 fixed inside the extension tube 12. Symmetrically arranged elastic clamping blocks 42 are fixed on the mounting tube 41. The elastic clamping blocks 42 penetrate the side wall of the mounting tube 41. An extrusion block 43 is fixed on the outer wall of the inner tube 21. The inner ends of the clamping plates 44 elastically connected to each wire dividing hole of one of the wire dividing circular plates 14 penetrate the extension tube 12. The end of the clamping plate 44 close to the inner tube 21 is an inclined surface and contacts the inclined surface of the extrusion block 43; When the oil steel wire 67 breaks, triggering the axial movement of the inner tube 21, the inner tube 21 pushes the outer inclined surface of the elastic clamp 42, causing each elastic clamp 42 to bend inward and clamp the cable, thus limiting the cable. The elastic clamp 42 and the cable can slide, preventing the inner tube 21 from driving the elastic clamp 42 to twist the cable through the installation tube 41 during the braking process of the winch 11. When the oil steel wire 67 breaks, it will cause the cable to tilt or even bend due to uneven force, affecting the uniformity of the armor. This design can limit the cable when the oil steel wire 67 breaks, which is convenient for subsequent recovery processing and ensures the uniformity of the armor. When the inner tube 21 moves axially, it also drives the extrusion block 43 to push the clamping plate 44 outward, clamping the oil steel wire 67 in the branching hole of the branching plate 14, so as to prevent the broken oil steel wire 67 from loosening and reducing the armor quality of the part of the cable that has been wrapped with oil steel wire 67.

[0034] Reference Figure 9 Because flat steel wire 67 is used for armoring, a branching guide roller structure 50 is provided on the extension tube 12 to prevent the steel wire 67 from rolling. The branching guide roller structure 50 includes a mounting bracket 51 fixed on the extension tube 12. The mounting bracket 51 is rotatably connected to a concave guide roller 52 and a bearing guide roller 53. The steel wire 67 passes between the concave guide roller 52 and the bearing guide roller 53. The steel wire 67 is clamped by the concave guide roller 52 and the bearing guide roller 53, which can prevent the steel wire 67 from turning over during the transportation process and ensure that the steel wire 67 completely wraps the surface of the cable.

[0035] The instrument cable processing method based on the above-mentioned instrument cable processing equipment includes the following steps: S1. Pass the oiled steel wire 67 on the winch 11 through the wire divider 13, the wire divider disc 14, the wire divider guide pressure wheel structure 50 and the tile-shaped hole wire divider ring 15 in sequence. The motor assembly 24 drives the winch 11 to rotate through the transmission tube 23 and the inner tube 21, so that the oiled steel wire 67 is wrapped around the outside of the cable. S2. When the oil steel wire 67 breaks, the elastic support unit 31 that comes into contact with it pushes the inclined block 333 through the push rod 32, so that the mounting plate 331 and the inner tube 21 are relatively deflected, and the support block 281 is deflected to align with the notch of the mounting plate 331. S3. When the support block 281 loses the support of the mounting plate 331, the inner tube 21 moves axially under the elastic force of the first spring 22, causing the insert to slide out of the groove of the transmission tube 23, and at the same time causing the friction disc 1 251 to contact the friction disc 252 for friction braking. S4. The inner tube 21 moves axially to push the outer inclined surface of the elastic clamp 42, causing the elastic clamp 42 to bend inward and clamp the cable. S5. The axial movement of the inner tube 21 pushes the clamping plate 44 outward through the extrusion block 43, clamping the oil steel wire 67 in the dividing hole of the dividing plate 14.

[0036] like Figure 11 The diagram shows a cross-sectional view of the instrument cable to be processed according to the present invention. The instrument cable includes multiple copper conductor cores 61 covered by a cross-linked polyethylene layer 62. Two copper conductor cores 61 covered by a cross-linked polyethylene layer 62 are twisted together in units. Several units are combined into a cable. The cable is wrapped with a polyester film tape 63. The polyester film tape 63 is wrapped with an aluminum-plastic composite film 64 and multiple strands of tinned copper wire grounding wire 65 are inserted. The aluminum-plastic composite film 64 is extruded with a PVC inner lining layer 66. Multiple oil-coated steel wires 67 are wrapped around the PVC inner lining layer 66. The oil-coated steel wires 67 are extruded with a PVC outer sheath 68. Oil-coated steel wire 67 is evenly distributed around the outer circumference of the cable, resulting in a round overall appearance of the cable.

[0037] The cable is armored with flat steel wires 67. After armoring, the steel wires 67 are evenly distributed along the surface of the PVC inner lining layer 66, resulting in a round cable appearance. The coverage of the steel wires 67 is ≥90%. Because the steel wires 67 are in full contact with the PVC inner lining layer 66, the pressure exerted on the cable by the steel wires 67 is relatively small when subjected to pressure. Furthermore, slippage between the steel wires 67 and the PVC inner lining layer 66 is not likely to occur, thereby improving the protection effect of the cable.

[0038] Working principle: In the initial state, the stop block 334 supports the inclined block 333, the tension spring 332 is in a stretched state, the notch on the inner edge of the mounting plate 331 is misaligned with the support block 281, the mounting plate 331 supports the support block 281, the first spring 22 is in a compressed state, the inner tube 21 and the limiting unit 28 cannot move axially, the insert on the inner tube 21 is engaged with the groove of the transmission tube 23, the oil steel wire 67 passes through the slide frame 311 and is tightened, the tension of the oil steel wire 67 pushes the roller 312, causing the slide frame 311 to compress the second spring 313, and the roller 312 does not contact the inclined block 333; When the oil steel wire 67 breaks, the roller 312 loses the support of the oil steel wire 67. The elastic force of the second spring 313 drives the slide frame 311 and the push rod 32 to move toward the inclined block 333. The push rod 32 squeezes the inclined surface of the inclined block 333, causing the inclined block 333 and the mounting plate 331 to deflect, so that the notch on the inner edge of the mounting plate 331 is aligned with the support block 281. The tension spring 332 is further stretched. Then, under the elastic force of the first spring 22, the inner tube 21 drives the support block 281 to pass through the notch of the mounting plate 331, and the inner tube 21 insert is dislodged from the groove of the transmission tube 23. The movement of the inner tube 21 also drives the friction disc 251 to move, causing the friction disc 251 to contact the friction disc 252. The friction between the two restricts the rotation of the inner tube 21, thereby braking the winch 11 that is slidably connected to the inner tube 21. When the inner tube 21 moves, the end near the extension tube 12 enters between the installation tube 41 and the extension tube 12, squeezing the outer inclined surface of the elastic clamp 42, causing the elastic clamp 42 to bend inward to limit the cable. At the same time, the inner tube 21 drives the squeezing block 43 to move and push the clamp 44, so that the clamp 44 abuts the oil steel wire 67 against the branch hole of the branch plate 14.

[0039] 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 present invention's technology, to an instrument cable, cable processing equipment, cable processing method, and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. An instrument cable processing apparatus comprising a frame body (10), a stranding cage (11) for winding oil wire (67) on a cable is rotatably connected inside the frame body (10), characterized in that, Also include transmission mechanism (20) and trigger mechanism (30), the transmission mechanism (20) includes the inner tube (21) which is slidingly connected inside the winch (11), the inner tube (21) and the winch (11) are provided with the first spring (22), one end of the frame body (10) is rotatably connected with the transmission pipe (23), one end of the frame body (10) is fixedly installed with the motor assembly (24) for driving the transmission pipe (23) to rotate, one end of the inner tube (21) is slidingly connected with the transmission pipe (23) through the embedded block, the other end is installed with the limiting unit (28), one end of the frame body (10) is installed with the pressure touch switch (27), the frame body (10) and the inner tube (21) are provided with the brake assembly (25); The brake assembly (25) includes a friction disc one (251) fixed to one end of the inner tube (21), and a friction disc two (252) slidingly connected to one end of the frame body (10) through a damper (253); When the oil wire (67) breaks, the inner tube (21) moves axially under the elastic force of the first spring (22), driving the embedded block to slide out of the sliding groove of the transmission pipe (23); at the same time, the friction disc one (251) is in contact with the friction disc two (252) to brake by friction.

2. An instrument cable processing apparatus according to claim 1, wherein One end of the winch (11) is fixed with an extension pipe (12), the extension pipe (12) is fixed with a wire distribution disc (13) rotatably connected with the frame body (10), the extension pipe (12) is fixed with five wire distribution circular plates (14), the end of the extension pipe (12) is fixed with a tile-shaped hole wire distribution ring (15), the frame body (10) is fixedly installed with a compression mold (16) and a spacing adjustable guide wheel straightener (17).

3. An instrument cable processing apparatus according to claim 1, wherein The trigger mechanism (30) includes an elastic support unit (31) corresponding to the oil wire (67), the inside of the wire distribution disc (13) is slidingly connected with a push rod (32), and the extension pipe (12) and the inner tube (21) are provided with a locking unit (33).

4. An instrument cable processing apparatus according to claim 3, wherein The elastic support unit (31) includes a sliding frame (311) slidingly connected inside the wire distribution disc (13) and fixed with the push rod (32), the inside of the sliding frame (311) is rotatably connected with a roller (312), and the second spring (313) is arranged between the sliding frame (311) and the inner wall of the wire distribution disc (13).

5. An instrument cable processing apparatus according to claim 3, wherein The locking unit (33) includes a mounting disc (331) rotatably connected inside the extension pipe (12), the outside of the mounting disc (331) is fixed with an inclined block (333) corresponding to the elastic support unit (31), the inside of the extension pipe (12) is fixed with a stop block (334), the mounting disc (331) and the inner wall of the extension pipe (12) are fixed with a tension spring (332), and the mounting disc (331) is fixed with a counterweight plate (34).

6. An instrument cable processing apparatus according to claim 1, wherein The limiting unit (28) includes a support block (281) elastically connected to the inner tube (21), and a steel ball (282) is embedded in one side of the support block (281).

7. An instrument cable processing apparatus according to claim 1, wherein It also includes a fixed structure (40), which includes a mounting tube (41) fixed inside the extension tube (12), and elastic clamping blocks (42) are symmetrically arranged on the mounting tube (41), and the outer wall of the inner tube (21) is fixed with a pressing block (43), and the inside of one of the wire distribution round plates (14) is elastically connected with a clamping plate (44) extending through the extension tube (12).

8. An instrument cable processing apparatus according to claim 7, wherein It also includes a wire distribution guide pressure wheel structure (50), which includes a mounting bracket (51) fixed on the extension tube (12), and a concave guide pressure wheel (52) and a bearing guide wheel (53) are rotatably connected inside the mounting bracket (51).

9. A method for processing an instrument cable, applied to the instrument cable processing apparatus according to any one of claims 1 to 8, characterized in that, It includes the following steps: S1, the oil steel wire (67) on the stranding cage (11) is sequentially threaded through the wire distribution disc (13), the wire distribution round plate (14), the wire distribution guide pressure wheel structure (50) and the tile-shaped hole wire distribution ring (15), and the motor assembly (24) drives the stranding cage (11) to rotate through the transmission tube (23) and the inner tube (21), so that the oil steel wire (67) is wound and wrapped outside the cable; S2, when the oil steel wire (67) breaks, the elastic support unit (31) in contact with it pushes the inclined block (333) through the push rod (32), so that the mounting disc (331) is relatively deflected with the inner tube (21), and the supporting block (281) is deflected to align with the notch of the mounting disc (331); S3, the supporting block (281) loses the support of the mounting disc (331), and the inner tube (21) moves axially under the elastic force of the first spring (22), drives the embedded block to slide out of the sliding slot of the transmission tube (23), and drives the friction disc one (251) to contact the friction disc two (252) to brake by friction; S4, the inner tube (21) moves axially to push the outer inclined surface of the elastic clamping block (42), so that the elastic clamping block (42) bends inward to clamp the cable; S5, the inner tube (21) moves axially to push the clamping plate (44) outward through the pressing block (43), and the oil steel wire (67) is clamped in the wire distribution hole of the wire distribution round plate (14).

10. An instrument cable processing apparatus according to claim 1, wherein the instrument cable being processed is characterized by, It includes a plurality of copper conductor cores (61) covered by a cross-linked polyethylene layer (62), the copper conductor cores (61) are cabled outside a polyester film tape (63) and an aluminum-plastic composite film (64), the aluminum-plastic composite film (64) is extruded to cover a PVC inner liner (66), a plurality of oil steel wires (67) are wrapped outside the PVC inner liner (66), and the oil steel wires (67) are extruded to cover a PVC outer sheath (68).

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