Wire and cable passing free corner device

Abstract

The utility model discloses a wire and cable passing free corner device, and relates to the technical field of cable equipment, the wire and cable passing free corner device comprises a rack, a first wire guide wheel, a tension balance assembly and a second wire guide wheel are sequentially arranged on the rack, and a cross rod fixed on the rack is arranged below the second wire guide wheel; an arc-shaped sleeve is fixed to the end, away from the second wire guide wheel, of the transverse rod, an adjusting ring is rotationally arranged in the arc-shaped sleeve, a fixing assembly is arranged on the arc-shaped sleeve and used for fixing the adjusting ring, a fixing joint is fixed to the adjusting ring, a direction-adjusting wire guide wheel is installed on the fixing joint, and the bottom of the direction-adjusting wire guide wheel is flush with the bottom of the second wire guide wheel. The first wire guide wheel, the second wire guide wheel and the direction-adjusting wire guide wheel are all provided with wire grooves used for containing wires. According to the device, the direction-adjusting wire guide wheel can be adjusted to any direction according to needs, it can be guaranteed that the extending direction of a wire can be freely controlled, the function of free turning is achieved, the adjusting steps are simple, and operation is convenient.

Description

Technical Field

[0001] This application relates to the field of cable equipment technology, and in particular to a free-turning device for wires and cables. Background Technology

[0002] Rewinding machines are used for wire feeding and take-up operations. Therefore, a wire guiding system is set up in the rewinding machine to guide the diamond wire on the feeding spool to the take-up spool. During rewinding, the feeding spool and the take-up spool often have different directions and positions, so the wire needs to be bent at different angles to be accurately rewound.

[0003] For example, the diamond wire guiding system for a rewinding machine (patent number CN215326148U) has the following shortcomings in actual use:

[0004] The wire output from the feed reel of the above device can be transported within the same wire-passing plane, avoiding the wire from being transported between guide reels on different planes, preventing the wire from twisting during transport, and ensuring the quality of the wire wound on the take-up reel. However, the directions of the two guide reels that change direction are basically fixed and can only be adjusted slightly. When the position of the take-up reel changes, it is difficult to provide effective guidance. Summary of the Invention

[0005] To address the technical problem of the inconvenience in changing the direction of the conductor wheel, this application provides a free-turning device for wires and cables.

[0006] The free-turning device for wire and cable crossing provided in this application adopts the following technical solution:

[0007] A free-turning device for wires and cables includes a frame on which a first guide wheel, a tension balancing assembly, and a second guide wheel are sequentially arranged. A crossbar fixed to the frame is arranged below the second guide wheel. An arc-shaped sleeve is fixed to the end of the crossbar away from the second guide wheel, and an adjusting ring is rotatably arranged in the arc-shaped sleeve. A fixing assembly is arranged on the arc-shaped sleeve to fix the adjusting ring. A fixing section is fixed on the adjusting ring, and a directional guide wheel is installed on the fixing section. The bottom of the directional guide wheel is flush with the bottom of the second guide wheel. The first guide wheel, the second guide wheel, and the directional guide wheel are all provided with grooves for accommodating wires.

[0008] By adopting the above technical solution, the wire is released from the pay-off reel, passes sequentially over the top of the first guide reel, under the tension balancing assembly and the second guide reel, and then extends horizontally to the bottom of the directional guide reel. After changing direction along the groove of the directional guide reel, it enters the take-up reel. The adjusting ring can rotate on the arc-shaped sleeve, allowing the directional guide reel to be adjusted to any direction as needed. This ensures that the direction of wire extension can be freely controlled, achieving the function of free turning. Moreover, when the directional guide reel changes direction, one side of it is always aligned with the second guide reel, so that the wire will not twist or fall off when it enters the directional guide reel from the second guide reel.

[0009] Preferably, the fixing component includes a fastening bolt threaded to the side end of the arc-shaped sleeve, and the adjusting ring has a pressing groove on the side near the fastening bolt, with the end of the fastening bolt abutting against the bottom of the pressing groove.

[0010] By adopting the above technical solution, after the adjusting ring is rotated to the required direction, the end of the fastening bolt can be pressed against the compression groove to fix the adjusting ring. This will not cause scratches on the surface of the adjusting ring or hinder its rotation.

[0011] Preferably, two symmetrically distributed fixing sleeves are fixed inside the fixing section. A piston rod is slidably inserted inside the fixing sleeve, and a tension spring for retracting the piston rod is provided between the fixing sleeve and the piston rod. A pressure wheel is fixed between the two piston rods, and the pressure wheel abuts against the groove of the adjusting guide wheel.

[0012] By adopting the above technical solution, the two tension springs pull the pressure rollers from both sides toward the direction guide rollers. When the wire passes between the direction guide rollers and the pressure rollers, it can be clamped by both, thus improving the stability of the wire conveying.

[0013] Preferably, a fixing ring is fixed on the fixing section, a connecting rod is fixed on the fixing ring, and an extension wheel is installed at the other end of the connecting rod, with the extension wheel and the directional guide wheel in the same guide plane.

[0014] By adopting the above technical solution, if the direction of the wire changes 180° after passing around the directional guide wheel, the wire may come into contact with the frame or other components. In this case, if the wire changes 90° after passing around the directional guide wheel and continues to pass around the extension wheel, the effect of changing the direction by 180° can still be achieved, and the wire can be kept away from the frame to prevent positional conflict.

[0015] Preferably, the connecting rod includes a first connecting rod and a second connecting rod, both of which have elongated slots for fixing, and the first connecting rod and the second connecting rod are fixed to each other by at least two mounting bolts, with the extension wheel rotatably disposed at the end of the second connecting rod.

[0016] By adopting the above technical solution, the first link and the second link are fixed together by at least two mounting bolts, which can freely adjust the degree of overlap between them, thereby freely changing the length of the connecting rod, further improving the adjustability of the guide position of the wire and expanding the adjustable range.

[0017] Preferably, the tension balancing assembly includes a static tension wheel installed above the frame, and a lifting sleeve is fixed directly below the static tension wheel on the frame. A lifting column is slidably arranged inside the lifting sleeve, a dynamic tension wheel is installed on the lifting column, a support rod is fixed on the lifting column, a support plate is fixed on the frame, the support plate is located directly below the support rod, a tension sensor is installed on the support plate, and the tension sensor is connected to the support rod through an elastic element.

[0018] By adopting the above technical solution, in actual use, the tension sensor is electrically connected to the drive motor of the take-up reel or the let-off reel. After the wire passes over the first guide reel, it passes under the dynamic tension reel, then moves towards the first guide reel and continues to pass over the static tension reel from above, and then passes under the second guide reel. When the wire tension is too high, the dynamic tension reel will move upward, and the elastic element will increase the tension on the tension sensor. At this time, the speed of the drive motor of the take-up reel or the let-off reel can be adjusted by changing the parameters of the tension sensor to ensure that the wire tension remains consistent and improve the rewinding quality.

[0019] Preferably, both the static tension wheel and the dynamic tension wheel are provided with multiple grooves, and the static tension wheel has one more groove than the dynamic tension wheel.

[0020] By adopting the above technical solution, in actual use, after the wire passes around the first guide wheel, it passes over one of the grooves of the static tension wheel from above, and then vertically downwards and passes under one of the grooves of the dynamic tension wheel. After repeatedly passing between the static and dynamic tension wheels multiple times, it passes under the second guide wheel from above the static tension wheel. By repeatedly passing between the static and dynamic tension wheels multiple times, the influence of tension changes on the wire vibration amplitude can be reduced, further ensuring the stability of the wire.

[0021] Preferably, a mounting base is fixed on the frame, and two vertical rollers are rotatably mounted on the mounting base, with the two vertical rollers located on the side of the first guide wheel away from the second guide wheel.

[0022] By adopting the above technical solution, the wire of the wire feeding reel passes between the two vertical rollers. The wire feeding reel has a certain lateral length. When there is a certain axial angle between the wire and the first guide wheel, the two vertical rollers can ensure that the wire will not fall off the first guide wheel and can reduce the friction of the wire.

[0023] Preferably, an air blowing pipe and a connecting frame are fixed on the frame, and an air inlet hopper is fixed on the connecting frame. The inlet of the air inlet hopper is directly opposite the air blowing pipe, and the outlet of the air inlet hopper is used to connect to the ash collection bag.

[0024] By adopting the above technical solution, when the air blowing pipe is connected to the air supply equipment, the airflow can blow the dust off and collect it in the dust bag connected to the outlet of the air inlet, thus achieving a cleaning effect and preventing dust from drifting away.

[0025] Preferably, a metal ring is fixed on the frame, and the metal ring is provided with soft metal bristles. The frame is made of metal and is grounded.

[0026] By adopting the above technical solution, the surface of the wire may carry static electricity after being blown by airflow. The static electricity can be conducted to the ground by the soft metal bristles, preventing unnecessary losses caused by static electricity.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When the wire extends from the bottom of the second guide wheel to the bottom of the directional guide wheel, the adjusting ring can rotate on the arc-shaped sleeve, allowing the directional guide wheel to be adjusted to any direction as needed. This ensures that the direction of wire extension can be freely controlled, achieving the function of free rotation. Moreover, the adjustment steps are convenient. Furthermore, when the directional guide wheel changes direction, one side of it is always aligned with the second guide wheel, preventing the wire from twisting or falling off when it enters the directional guide wheel from the second guide wheel.

[0029] 2. During the rewinding process, the tension may change at any time. When the wire passes through the tension balancing component, the tension balancing component can weaken the tension change. On the one hand, it can prevent the wire from shaking significantly and coming off the wire-passing mechanism, and on the other hand, it can improve the quality of rewinding. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall isometric structure of this application;

[0031] Figure 2 This is a schematic diagram of the directional guide wheel in this application;

[0032] Figure 3 This is a schematic diagram of the disassembled structure of the directional guide wheel in this application;

[0033] Figure 4 This is a schematic diagram of the pressure roller in this application;

[0034] Figure 5 This is a partial structural schematic diagram of the tension balancing component in Embodiment 1 of this application;

[0035] Figure 6 This is a partial structural diagram of this application;

[0036] Figure 7 This is a schematic diagram of the tension balancing component in Embodiment 1 of this application.

[0037] Reference numerals: 1. Frame; 2. First guide roller; 3. Second guide roller; 4. Horizontal bar; 5. Vertical bar; 6. Arc-shaped sleeve; 7. Adjusting ring; 8. Fixed section; 9. Directional guide roller; 10. Fastening bolt; 11. Extrusion groove; 12. Fixed sleeve; 13. Piston rod; 14. First retaining ring; 15. Second retaining ring; 16. Tension spring; 17. Shaft; 18. Pressing roller; 19. Fixed ring; 20. First connecting rod; 1. Second connecting rod; 22. Long slot; 23. Mounting bolt; 24. Extension wheel; 25. Static tension wheel; 26. Lifting sleeve; 27. Lifting column; 28. Dynamic tension wheel; 29. ​​Support rod; 30. Support plate; 31. Tension sensor; 32. Elastic component; 33. Mounting base; 34. Vertical roller; 35. Air blowing pipe; 36. Fixing buckle; 37. Connecting frame; 38. Air inlet hopper; 39. Anti-slip ring; 40. Metal ring. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0039] This application discloses a free-turning device for wires and cables.

[0040] Example 1:

[0041] Reference Figure 1 and Figure 2 A free-turning device for wires and cables includes a frame 1 for mounting components. On the frame 1, a first guide wheel 2, a tension balancing assembly, and a second guide wheel 3 are arranged sequentially according to the wire transmission path. A crossbar 4 is fixedly mounted on the frame 1 below the second guide wheel 3. A vertical bar 5 is fixed to the end of the crossbar 4 away from the second guide wheel 3, and an arc-shaped sleeve 6 is connected above the vertical bar 5.

[0042] An adjusting ring 7 is rotatably mounted inside the arc-shaped sleeve 6. By rotating the adjusting ring 7, the angle of subsequent related components (direction guide wheel 9) can be adjusted to meet the requirements of different wire routing. To ensure stability after adjustment, the arc-shaped sleeve 6 is equipped with a fixing component to fix the adjusting ring 7 in the required position.

[0043] Specifically, the fixing assembly includes a fastening bolt 10 threaded to the side end of the arc-shaped sleeve 6, and an extrusion groove 11 is provided on the side of the adjusting ring 7 near the fastening bolt 10. When it is necessary to fix the adjusting ring 7, the fastening bolt 10 is tightened so that its end abuts against the bottom of the extrusion groove 11, and the adjusting ring 7 is fixed by this extrusion action.

[0044] A fixed section 8 is fixedly connected to the adjusting ring 7, and a directional guide wheel 9 is installed on the fixed section 8. The bottom of the directional guide wheel 9 is flush with the bottom of the second guide wheel 3. This design helps to ensure smooth transmission of the wire. In addition, the first guide wheel 2, the second guide wheel 3, and the directional guide wheel 9 are all provided with wire grooves. These wire grooves are used to accommodate the wire and ensure that the wire is stable and orderly during transmission.

[0045] With the above setup, after the wire is released from the feed reel, it first passes over the top of the first guide reel 2, then passes through the tension balancing assembly, and then passes under the second guide reel 3, at which point the wire is in a horizontally extended state.

[0046] After the wire extends horizontally below the directional guide wheel 9, it changes direction along the groove of the directional guide wheel 9 and finally connects to the take-up wheel. Among them, the adjusting ring 7 is the key component for realizing the adjustment of the wire direction. It is rotatably mounted on the arc-shaped sleeve 6. By rotating the adjusting ring 7, the directional guide wheel 9 can be adjusted to any direction, thereby freely controlling the extension direction of the wire and realizing the free angle function.

[0047] During the process of the directional guide wheel 9 changing direction, one side always remains aligned with the second guide wheel 3, ensuring that when the wire enters the directional guide wheel 9 from the second guide wheel 3, it can smoothly transition without twisting or falling off, thus guaranteeing the stability of wire transmission.

[0048] After the adjusting ring 7 is rotated to the desired direction, it is fixed by tightening the fastening bolt 10. The operation is simple, and the end of the fastening bolt 10 will abut against the compression groove 11, which will not scratch the surface of the adjusting ring 7, will not affect the subsequent rotation of the adjusting ring 7, and will extend its service life.

[0049] Reference Figure 2 , Figure 3 and Figure 4 Two symmetrically distributed fixed sleeves 12 are fixed to the inner side of the fixed section 8. A piston rod 13 is slidably inserted inside each fixed sleeve 12. To enable the piston rod 13 to retract automatically, a tension spring 16 is provided between the fixed sleeve 12 and the piston rod 13. A first retaining ring 14 and a second retaining ring 15 are respectively provided on the outer side of the fixed sleeve 12 and the outer side of the piston rod 13. The tension spring 16 is sleeved on the fixed sleeve 12, and its two ends are fixed to the first retaining ring 14 and the second retaining ring 15 respectively. The elastic force of the tension spring 16 causes the piston rod 13 to tend to retract into the fixed sleeve 12.

[0050] Two piston rods 13 are connected to a shaft 17 at their ends away from the fixed sleeve 12, and a pressure wheel 18 is rotatably mounted at the middle position of the shaft 17. Under the action of the tension spring 16, the pressure wheel 18 is always pressed against the groove of the guide wheel 9, which can effectively prevent the wire from falling out of the groove or shifting position during transmission, ensuring the smooth and accurate transmission of the wire.

[0051] With the above settings, the wire can be clamped between the directional guide wheel 9 and the pressure wheel 18 when it passes through, thus improving the stability of the wire conveying.

[0052] A fixing ring 19 is fixedly connected to the fixing section 8. The fixing ring 19 serves as the connection base, and a connecting rod is fixed on it. The connecting rod consists of a first connecting rod 20 and a second connecting rod 21. This segmented design facilitates flexible adjustment of length and angle.

[0053] To facilitate adjustment and fixation of the connecting rod length, both the first connecting rod 20 and the second connecting rod 21 are provided with elongated slots 22. During installation, the first connecting rod 20 and the second connecting rod 21 are fixed together by at least two mounting bolts 23. Installers can adjust the position of the mounting bolts 23 in the elongated slots 22 to change the overall length of the connecting rod according to actual needs, so as to meet different installation requirements.

[0054] An extension wheel 24 is rotatably provided at the end of the second link 21 away from the first link 20, and the extension wheel 24 and the directional guide wheel 9 are in the same guide plane.

[0055] With the above settings, the distance between the extension wheel 24 and the directional guide wheel 9 can be changed by the first link 20 and the second link 21, so that the wire changes direction by 90° after passing the directional guide wheel 9 and continues to pass the extension wheel 24, still achieving the effect of changing direction by 180°, and can keep the wire away from the frame 1 to prevent positional conflict.

[0056] refer to Figure 1 and Figure 5 The core structure of the tension balancing assembly consists of a dynamic tension wheel 28 and a static tension wheel 25. The static tension wheel 25 is mounted on top of the frame 1 and serves as the reference component for tension adjustment, with a fixed position. Directly below the static tension wheel 25, a lifting sleeve 26 is fixedly installed on the frame 1. A lifting column 27 is slidably installed inside the lifting sleeve 26, allowing the lifting column 27 to move up and down within the lifting sleeve 26.

[0057] A dynamic tension wheel 28 is installed above the lifting column 27. The dynamic tension wheel 28 changes position as the lifting column 27 moves, thereby achieving dynamic adjustment of the wire tension. To monitor and provide feedback on tension changes in real time, a support rod 29 is fixedly connected to the lifting column 27. Simultaneously, a support plate 30 is fixed to the frame 1, positioned directly below the support rod 29. A tension sensor 31 is installed on the support plate 30, and the tension sensor 31 is connected to the support rod 29 via an elastic element 32.

[0058] With the above settings, in actual use, the tension sensor 31 is electrically connected to the drive motor of the take-up reel or the pay-off reel. After the wire passes over the first guide reel 2, it passes under the dynamic tension wheel 28, then moves towards the first guide reel 2, and continues to pass over the static tension wheel 25, and then passes under the second guide reel 3. When the wire tension changes, the dynamic tension wheel 28 will drive the lifting column 27 and the support rod 29 to move up and down, and then transmit the tension change to the tension sensor 31 through the elastic element 32. The tension sensor 31 can detect the tension in real time and feed the signal back to the control system so that the drive motor of the take-up reel or the pay-off reel can be adjusted in time to ensure that the wire tension remains consistent and improve the rewinding quality.

[0059] refer to Figure 6 The frame 1 is fixed with a mounting base 33, and two vertical rollers 34 are rotatably mounted on the mounting base 33. Before the wire passes over the first guide wheel 2, it passes through the two vertical rollers 34. The wire feeding wheel has a certain lateral length. When there is a certain axial angle between the wire and the first guide wheel 2, the two vertical rollers 34 can ensure that the wire will not fall off the first guide wheel 2 and can reduce the friction of the wire.

[0060] The frame 1 is made of metal and is grounded. The metal frame 1 not only has sufficient strength and stability, but the grounding design also effectively prevents static electricity accumulation, avoiding damage to wires and equipment and ensuring production safety.

[0061] An air blowing pipe 35 and a connecting frame 37 are fixedly installed on the frame 1. The air blowing pipe 35 is connected to the frame 1 by a fixing clip 36. The air blowing pipe 35 is used to blow air to remove dust and other impurities from the surface of the wire. An air inlet 38 is fixed on the connecting frame 37. The inlet of the air inlet 38 is directly opposite the air blowing pipe 35. This design ensures that the air blowing out of the air blowing pipe 35 can smoothly enter the air inlet 38. An anti-slip ring 39 is provided on the outside of the outlet of the air inlet 38 to connect the dust collection bag and prevent the dust collection bag from falling off. When the airflow carries dust into the air inlet 38, the dust will be collected in the dust collection bag, thereby achieving effective dust removal and maintaining the cleanliness of the production environment and the wire.

[0062] In addition, a metal ring 40 is fixed on the frame 1, and the metal ring 40 is provided with metal bristles. When the wire passes through the metal ring 40, the metal bristles can conduct the static electricity on the surface of the wire to the ground, preventing unnecessary damage caused by static electricity.

[0063] The implementation principle of this embodiment is as follows: the wire is released from the pay-off reel, passes sequentially over the top of the first guide reel 2, the tension balance component, and the bottom of the second guide reel 3, and then extends horizontally to the bottom of the directional guide reel 9. After changing direction along the wire groove of the directional guide reel 9, it enters the take-up reel. The adjusting ring 7 can rotate on the arc-shaped sleeve 6 and is fixed by the fastening bolt 10. The directional guide reel 9 can be adjusted to any direction as needed, which can ensure that the direction of wire extension can be freely controlled and realize the function of free angle turning. Moreover, when the directional guide reel 9 changes direction, one side of it is always aligned with the second guide reel 3, so that the wire will not twist or fall off when it enters the directional guide reel 9 from the second guide reel 3.

[0064] Furthermore, in practical use, the tension sensor 31 is electrically connected to the drive motor of the take-up reel or the let-off reel. After the wire passes over the first guide reel 2, it passes under the dynamic tension wheel 28, then moves towards the first guide reel 2, and continues to pass over the static tension wheel 25, and then passes under the second guide reel 3. When the wire tension is too high, the dynamic tension wheel 28 will move upward, and the elastic element 32 will increase the tension on the tension sensor 31. At this time, the speed of the drive motor of the take-up reel or the let-off reel can be adjusted by changing the parameters of the tension sensor 31 to ensure that the wire tension remains consistent and improve the rewinding quality.

[0065] Example 2:

[0066] This embodiment optimizes the structure of the tension balancing component based on Embodiment 1, specifically in the following ways:

[0067] Both the static tension wheel 25 and the dynamic tension wheel 28 are provided with multiple grooves, and the static tension wheel 25 has one more groove than the dynamic tension wheel 28.

[0068] The implementation principle of this embodiment is as follows: After the wire passes around the first guide wheel 2, it enters the tension balancing component area. The wire first passes over the top of one of the grooves of the static tension wheel 25, then goes vertically downwards, and then passes under one of the grooves of the dynamic tension wheel 28. Then, the wire does not leave directly, but repeatedly winds between the static tension wheel 25 and the dynamic tension wheel 28 in this manner multiple times.

[0069] By repeatedly winding the wire between the static tension wheel 25 and the dynamic tension wheel 28, the impact of tension changes can be effectively buffered. When tension fluctuates, the buffer structure formed by multiple windings can disperse the impact force generated by the tension change, reduce the impact of tension change on the wire vibration amplitude, and thus further ensure the stability of the wire during transmission, allowing the wire to enter the subsequent second guide wheel 3 smoothly and orderly.

[0070] In summary, this device can adjust the directional guide wheel 9 to any direction as needed, ensuring that the direction of wire extension can be freely controlled, achieving the function of free angle turning. Moreover, the adjustment steps are simple and convenient to operate.

[0071] 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. A free-turning device for wires and cables, comprising a frame (1), characterized in that: The frame (1) is provided with a first guide wheel (2), a tension balancing component and a second guide wheel (3) in sequence. A crossbar (4) fixed to the frame (1) is provided below the second guide wheel (3). An arc-shaped sleeve (6) is fixed to the end of the crossbar (4) away from the second guide wheel (3). An adjusting ring (7) is rotatably provided in the arc-shaped sleeve (6). A fixing component is provided on the arc-shaped sleeve (6) for fixing the adjusting ring (7). A fixing section (8) is fixed on the adjusting ring (7). A directional guide wheel (9) is installed on the fixing section (8). The bottom of the directional guide wheel (9) is flush with the bottom of the second guide wheel (3). The first guide wheel (2), the second guide wheel (3) and the directional guide wheel (9) are all provided with a groove for accommodating the wire.

2. The free-turning device for wires and cables according to claim 1, characterized in that: The fixing component includes a fastening bolt (10) threaded to the side of the arc-shaped sleeve (6), and an extrusion groove (11) is provided on the side of the adjusting ring (7) near the fastening bolt (10), with the end of the fastening bolt (10) abutting against the bottom of the extrusion groove (11).

3. A power cable pass-through free rotation corner device according to claim 1, characterized in that: Two symmetrically distributed fixing sleeves (12) are fixed inside the fixing section (8). A piston rod (13) is slidably inserted inside the fixing sleeve (12), and a tension spring (16) for retracting the piston rod (13) is provided between the fixing sleeve (12) and the piston rod (13). A pressure wheel (18) is fixed between the two piston rods (13), and the pressure wheel (18) abuts against the groove of the guide wheel (9).

4. A power cable pass-through free rotation corner device according to claim 1, characterized in that: A fixing ring (19) is fixed on the fixing section (8), and a connecting rod is fixed on the fixing ring (19). An extension wheel (24) is installed at the other end of the connecting rod, and the extension wheel (24) and the directional guide wheel (9) are in the same guide plane.

5. A power and communication cable raceway free rotation corner fitting according to claim 4 wherein: The connecting rod includes a first connecting rod (20) and a second connecting rod (21). Both the first connecting rod (20) and the second connecting rod (21) are provided with long slots (22) for fixing. The first connecting rod (20) and the second connecting rod (21) are fixed to each other by at least two mounting bolts (23). An extension wheel (24) is rotatably disposed at the end of the second connecting rod (21).

6. A power and communication cable raceway free rotation corner fitting according to claim 1, wherein: The tension balancing assembly includes a static tension wheel (25) installed above the frame (1), and a lifting sleeve (26) is fixed directly below the static tension wheel (25) on the frame (1). A lifting column (27) is slidably arranged inside the lifting sleeve (26). A dynamic tension wheel (28) is installed on the lifting column (27). A support rod (29) is fixed on the lifting column (27). A support plate (30) is fixed on the frame (1). The support plate (30) is located directly below the support rod (29). A tension sensor (31) is installed on the support plate (30), and the tension sensor (31) is connected to the support rod (29) through an elastic element (32).

7. A wire and cable raceway free rotation corner device according to claim 6, wherein: Both the static tension wheel (25) and the dynamic tension wheel (28) are provided with multiple grooves, and the static tension wheel (25) has one more groove than the dynamic tension wheel (28).

8. A power and communication cable raceway free rotation corner fitting according to claim 1 wherein: The frame (1) is fixed with a mounting base (33), and two vertical rollers (34) are rotatably mounted on the mounting base (33), and the two vertical rollers (34) are located on the side of the first guide wheel (2) away from the second guide wheel (3).

9. A power and communication cable pass-through free rotation corner fitting according to claim 1, wherein: The frame (1) is fixed with an air blowing pipe (35) and a connecting frame (37). An air inlet hopper (38) is fixed on the connecting frame (37), and the inlet of the air inlet hopper (38) is directly opposite to the air blowing pipe (35). The outlet of the air inlet hopper (38) is used to connect to the ash collection bag.

10. A free-turning device for wires and cables according to claim 1 or 9, characterized in that: A metal ring (40) is fixed on the frame (1), and the metal ring (40) is provided with metal soft hair. The frame (1) is made of metal and is grounded.

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