Instrument cable and cable processing apparatus and cable processing method
By introducing transmission and triggering mechanisms into the instrument cable processing equipment, the automatic shutdown and rapid response of the winch are realized, which solves the problems of safety accidents caused by inertial rotation after the traditional frame winch stops due to wire breakage and slow response speed, and improves the safety and production efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANJIN YUANHUA CABLE CO LTD
- Filing Date
- 2026-02-02
- Publication Date
- 2026-07-28
AI Technical Summary
In traditional frame winch, after a wire breakage and shutdown, the winch cage will continue to rotate due to inertia, which can easily damage surrounding equipment and cause safety accidents. Moreover, the response speed for stopping the wire breakage is slow and uncontrollable.
An instrument cable processing device is used, including a frame, a transmission mechanism and a triggering mechanism. The axial movement of the inner tube drives the insert to disengage from the transmission tube groove. Combined with the friction braking of the friction disc, the winch is automatically stopped. The stop response speed and safety are improved by the elastic support unit and the counterweight plate.
It effectively reduces equipment collisions and vibrations caused by the inertial rotation of the winch, protects motor components from damage, improves shutdown response speed and safety, and ensures rapid production recovery.
Smart Images
Figure CN121672279B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of instrument cable technology, and in particular to an instrument cable, cable processing equipment, and cable processing method. Background Technology
[0002] Instrument communication cables are mainly used for signal transmission in systems such as electronic computers, monitoring circuits, and automated control in industrial environments. The core requirement is to ensure accurate and stable signal transmission. Therefore, high requirements are placed on the anti-interference performance and mechanical protection performance of the cables. In order to improve the mechanical strength of instrument cables, they need to be armored.
[0003] Armoring is a process of wrapping a cable with a metal protective structure. Its core function is to improve the cable's mechanical strength and environmental resistance. The armoring of instrument cables is generally carried out by a frame stranding machine. The existing frame stranding machine mainly consists of a cage and a reel. The cage drives the reel to make a circular motion, so that the steel wire on the reel is spirally wound around the cable pulled out from the cage to form the finished cable.
[0004] During operation, the wire released from the wire reel of the frame stranding machine is always taut. When the relevant components of the wire pulley inside the frame stranding machine wear out, the tension on the wire will fluctuate, causing fatigue damage or even breakage of the wire. The existing device places the motor switch outside the frame stranding machine and uses an elastic trigger to contact the wire. When the wire breaks, the elastic trigger moves radially outward. Then, as the frame stranding machine continues to rotate, it will drive the elastic trigger to contact the switch, achieving automatic shutdown.
[0005] However, because the winch contains multiple wire reels with coiled steel wire inside, it is extremely heavy. Therefore, after the machine stops, the winch will continue to rotate due to inertia. This causes broken steel wire to collide and become entangled with surrounding components, exacerbating equipment damage and easily leading to safety accidents. Moreover, the impact vibrations experienced by the winch during its inertial rotation can be transmitted to the motor drive shaft, damaging the motor. Furthermore, in the existing device, when the elastic trigger is activated just past the switch position, it needs to rotate one full turn with the winch before contacting the switch to stop the equipment. Therefore, the response speed for stopping the machine after wire breakage is slow and uncontrollable, resulting in low safety. Summary of the Invention
[0006] The purpose of this invention is to solve the problems of traditional wire mesh winch, where the winch cage continues to rotate under inertia after a wire breakage and shutdown, which can easily damage surrounding equipment and cause safety accidents, and the slow and uncontrollable response speed after a wire breakage and shutdown. Therefore, this invention proposes an instrument cable, cable processing equipment, and cable processing method.
[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 that comes into 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 plate 331 has a notch. When the oil steel wire 67 breaks, the roller 312 that is 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 toward the mounting plate 331, so that the push rod 32 presses the inclined surface of the inclined block 333, thereby causing the mounting plate 331 and the inner tube 21 to deflect relative to each other. The notch of the mounting plate 331 deflects to align with the support block 281. At this time, the mounting plate 331 no longer supports the limiting unit 28. The first spring 22 can drive the inner tube 21 and the limiting unit 28 to move axially through its elastic force, triggering the braking assembly 25 to brake the winch 11 and disengage 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, causing the mounting plate 331 to deflect, releasing the support of the limit unit 28 and the inner tube 21, and stopping the winch 11 through the transmission mechanism 20. Compared with the existing device, this design not only makes the response time of stopping the winch 11 controllable, but also speeds up the response time of stopping the winch 11, effectively preventing the fault from continuing to expand.
[0032] A counterweight plate 34 is fixed on the mounting plate 331. The counterweight plate 34 increases the weight of the mounting plate 331, which increases the rotational inertia of the mounting plate 331. The rotation of the winch 11 drives the extension tube 12 to rotate. The extension tube 12 drives the inclined block 333 and the mounting plate 331 to rotate through the stop block 334. When the rotation of the winch 11 is obstructed or suddenly jammed due to external factors, the mounting plate 331 will continue to rotate under the action of inertia, so that the notch is aligned with the limit unit 28, triggering the transmission mechanism 20 to stop and brake the winch 11. This design is used to further improve the safety of the device and provide effective protection for safe production.
[0033] Reference Figure 9 The extension tube 12 is provided with a fixing structure 40, which includes an installation tube 41 fixed inside the extension tube 12. The installation tube 41 is fixed with symmetrically arranged elastic clamps 42, which penetrate the side wall of the installation tube 41. The outer wall of the inner tube 21 is fixed with a pressing block 43. Each of the dividing holes of one of the dividing circular plates 14 is elastically connected with a clamping plate 44 that penetrates the extension tube 12. The end of the clamping plate 44 near the inner tube 21 is inclined and contacts the inclined surface of the pressing 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 device, comprising a frame (10), wherein a winch (11) for winding steel wire (67) onto a cable is rotatably connected inside the frame (10), characterized in that, It also includes a transmission mechanism (20) and a triggering mechanism (30). The transmission mechanism (20) includes an inner tube (21) slidably connected inside the winch (11). A first spring (22) is provided between the inner tube (21) and the winch (11). A transmission tube (23) is rotatably connected to one end of the frame (10). A motor assembly (24) for driving the transmission tube (23) to rotate is fixedly installed at one end of the frame (10). One end of the inner tube (21) is slidably connected to the transmission tube (23) through an insert, and a limit unit (28) is installed at the other end. A pressure switch (27) is installed at one end of the frame (10). A braking assembly (25) is provided between the frame (10) and the inner tube (21). The braking assembly (25) includes a friction disc one (251) fixed to one end of the inner tube (21), and a friction disc two (252) slidably connected to one end of the frame (10) through a damper (253). One end of the winch (11) is fixed with an extension tube (12), and a wire divider (13) rotatably connected to the frame (10) is fixed on the extension tube (12). Five wire divider discs (14) are fixed on the extension tube (12), and a tile-shaped hole wire divider ring (15) is fixed at the end of the extension tube (12). A pressing mold (16) and a guide wheel straightener (17) with adjustable spacing are fixedly installed on the frame (10). The triggering mechanism (30) includes an elastic support unit (31) corresponding to the oil steel wire (67), a push rod (32) is slidably connected inside the splitter (13), and a locking unit (33) is provided between the extension tube (12) and the inner tube (21). The elastic support unit (31) includes a sliding frame (311) that is slidably connected inside the distributor 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 distributor plate (13). 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 on 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). A counterweight plate (34) is fixed on the mounting plate (331). When the oil steel wire (67) breaks, 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); at the same time, it causes the friction disc one (251) to contact the friction disc two (252) and brake through friction.
2. The instrument cable processing equipment according to claim 1, characterized in that, The limiting unit (28) includes a support block (281) elastically connected to the inner tube (21), and a steel ball (282) is embedded on one side of the support block (281).
3. The instrument cable processing equipment according to claim 1, characterized in that, It also includes a fixing structure (40), which includes an installation tube (41) fixed inside the extension tube (12), on which symmetrically arranged elastic clamps (42) are fixed, and an extrusion block (43) is fixed on the outer wall of the inner tube (21), and a clamping plate (44) that penetrates the extension tube (12) is elastically connected inside one of the dividing circular plates (14).
4. The instrument cable processing equipment according to claim 3, characterized in that, It also includes a branch line guide roller structure (50), which includes a mounting bracket (51) fixed on the extension tube (12), and the mounting bracket (51) is rotatably connected to a concave guide roller (52) and a bearing guide roller (53).
5. A method for processing instrument cables, applied to the instrument cable processing equipment described in any one of claims 1-4, characterized in that, Includes the following steps: S1. Pass the oiled steel wire (67) on the winch (11) through the wire divider (13), wire divider disc (14), wire divider guide roller structure (50) and 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 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 be aligned 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 one (251) to contact the friction disc two (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 to clamp the cable. S5. The inner tube (21) moves axially and 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).
6. The instrument cable processed by the instrument cable processing equipment according to claim 1, characterized in that, It includes multiple copper conductor cores (61) covered by a cross-linked polyethylene layer (62), the copper conductor cores (61) are cabled and wrapped with a polyester film tape (63) and an aluminum-plastic composite film (64), the aluminum-plastic composite film (64) is extruded with a PVC inner lining layer (66), multiple oil steel wires (67) are wrapped around the PVC inner lining layer (66), and the oil steel wires (67) are extruded with a PVC outer sheath (68).