Wire twister for power cable processing

Abstract

The utility model discloses a wire twister for power cable processing, which comprises a base, two groups of mounting racks are fixedly connected onto the base, a mounting disc is fixedly connected onto one group of mounting racks, a mounting ring is fixedly connected onto the other group of mounting racks, a rotating shaft is coaxially and fixedly connected onto a driving shaft of a driving motor, and a rotating shaft is fixedly connected onto the rotating shaft. A mounting plate is fixedly mounted on the rotating shaft, a fixing cylinder is fixedly mounted outside the rotating shaft, a plurality of groups of fixing plates are fixedly connected to the fixing cylinder, wire discs are detachably mounted on the fixing plates, two groups of guide discs are fixedly connected to the rotating shaft, and wires are arranged in the two groups of guide discs in a penetrating manner. According to the utility model, the pay-off tension of the wire is kept stable, so that the change of the pay-off tension caused by the reduction of the wire on the wire reel in the wire twisting process is avoided, and the stability of the pay-off tension in the wire twisting process is ensured, thereby improving the finished product quality and stability of the processed power cable.

Description

Technical Field

[0001] This utility model relates to the field of cable processing equipment, specifically to a stranding machine for processing power cables. Background Technology

[0002] Power cables are cables used to transmit and distribute electrical energy. They are widely used in urban underground power grids, power plant lead-out lines, internal power supply in industrial and mining enterprises, and underwater power transmission lines across rivers and seas.

[0003] To further understand the existing stranding devices for power cable processing, a search revealed Chinese Patent CN222106343U, which discloses a stranding machine for power cable processing. The machine includes a housing, a motor at the bottom of which is mounted. A rotating shaft is located at the output end of the motor. One end of the rotating shaft has a drive pulley, a belt on its outer surface, and a driven pulley on its inner wall. A second drive pulley is located in the middle of the rotating shaft, with a belt on its outer surface and a driven pulley on its inner wall. The center of the driven pulley... The system is equipped with a rotating shaft, a fixed plate on the other side of the shaft, a rotating rod on the surface of the driven pulley, a tension rod on the outer surface of the rotating rod, a telescopic rod rotatably connected to the other end of the tension rod, a push-pull ring at the end of the telescopic rod, a driving bevel gear at the end of the rotating shaft, a driven bevel gear on the surface of the driving bevel gear, a rotating rod on the inner wall of the driven bevel gear, a take-up drum at the end of the rotating rod, a baffle on one side of the outer casing, a lead-out drum inside the baffle, a support plate at the end of the lead-out drum, a pay-off drum on the outer surface of the support plate, and a steering wheel at the center of the support plate.

[0004] After exploration and analysis, the patent has the following drawbacks in actual use: Although the patent achieves the purpose of uniform distribution of power cables by setting push-pull rings and telescopic rods, it does not control the tension of the wire cores during the power cable processing. As the number of wire cores on the wire core decreases during the wire core processing, the wire tension changes, resulting in uneven wire tension. This may lead to problems such as loose strands, inconsistent strand pitch, and single-wire back strands. In severe cases, it may even lead to single-wire breakage or missing strands, affecting the overall quality and stability of the stranded power cable. Utility Model Content

[0005] To address the technical problems of uneven wire tension in existing power cables, which may lead to issues such as loose strands, inconsistent stranding pitch, and single-wire back strands, and in severe cases, even single-wire breakage or missing strands, thus affecting the overall quality and stability of the stranded power cable, this utility model provides a wire stranding machine for power cable processing.

[0006] The technical solution adopted by this utility model is as follows: it includes a base and a drive motor. Two sets of mounting brackets are fixedly connected to the base. One set of mounting brackets is fixedly connected to a mounting plate, and the other set of mounting brackets is fixedly connected to a mounting ring. A rotating shaft is coaxially fixedly connected to the drive shaft of the drive motor. A mounting plate is fixedly installed on the rotating shaft. A fixing cylinder is fixedly installed on the outside of the rotating shaft. Several sets of fixing plates are fixedly connected to the fixing cylinder. A wire reel is detachably installed on the fixing plate. Two sets of guide plates are fixedly connected to the rotating shaft. Wires are threaded through the two sets of guide plates. A support plate is fixedly connected to the base. A wire reel is fixedly installed on the support plate. A constant tension mechanism is provided on the mounting plate.

[0007] Furthermore, the constant tension mechanism includes several sets of mounting seats fixedly mounted on the mounting plate, a rotating rod rotatably mounted on the mounting seats, an upper roller fixedly mounted on the outside of the rotating rod, and a lower roller rotatably mounted in the mounting seats. One end of the rotating rod is fixedly connected to a first bevel gear, one side of the first bevel gear meshes with a second bevel gear, one end of the second bevel gear is fixedly connected to a connecting rod, one end of the connecting rod is fixedly mounted with a gear, the outside of the gear meshes with a toothed ring, and the toothed ring is fixedly mounted on the inner wall of the mounting ring.

[0008] By adopting the above technical solution, the tension of the wire being laid out is kept constant.

[0009] Furthermore, the end of the mounting base is threadedly connected to an adjusting screw, one end of which is rotatably mounted to a fixed base, and the lower roller is rotatably mounted in the fixed base.

[0010] By adopting the above technical solution, the requirements for using wires of different specifications can be met.

[0011] Furthermore, a limiting groove is provided on the mounting base, and a limiting block is slidably installed in the limiting groove. The limiting block is fixedly connected to the side of the mounting base.

[0012] By adopting the above technical solution, the stability of the fixed base during movement is improved.

[0013] Furthermore, a lower protective cage is fixedly installed between the mounting plate and the mounting ring, and an upper protective cage is rotatably installed between the mounting plate and the mounting ring.

[0014] By adopting the above technical solutions, the safety of the device during use is improved.

[0015] Furthermore, both the lower and upper protective cages are fixedly equipped with locking blocks, and insert rods are inserted into the two sets of locking blocks.

[0016] By adopting the above technical solution, it is easy to replace the wire reel.

[0017] The beneficial effects of this utility model are: by using the mounting plate in conjunction with the mounting ring, toothed ring, mounting base, rotating rod, upper roller, lower roller, first bevel gear, second bevel gear, connecting rod and gear, the upper roller and lower roller rotate at a constant speed to push the conductor to move during the stranding process of the power cable. This avoids the change in wire tension caused by the reduction of wire on the conductor reel during the stranding process, ensuring the stability of the wire tension during the stranding process, thereby improving the finished quality and stability of the processed power cable.

[0018] The mounting base, in conjunction with the adjusting screw, fixed seat, and lower roller, adjusts the distance between the lower and upper rollers to accommodate wires of different diameters, thus improving the practicality of the device. The mounting base, along with the limiting groove, limiting block, and fixed seat, enhances the stability of the lower roller during adjustment, thereby improving the overall stability of the device during use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the fixed cylinder and the guide plate in this utility model;

[0021] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0022] Figure 4 This is a schematic diagram of the mounting base and connecting rod in this utility model;

[0023] Figure 5 This is a schematic diagram of the assembly of the upper roller, lower roller and mounting base in this utility model;

[0024] Figure 6 This is a schematic diagram of the upper protective cage in the open state of this utility model.

[0025] The following are the components labeled in the diagram: 1. Base; 2. Mounting bracket; 3. Mounting plate; 4. Mounting ring; 5. Drive motor; 6. Mounting plate; 7. Rotating shaft; 8. Guide plate; 9. Support plate; 10. Wire coil; 11. Fixed cylinder; 12. Fixed plate; 13. Wire coil; 14. Wire; 15. Mounting seat; 16. Rotating rod; 17. Upper roller; 18. Lower roller; 19. First bevel gear; 20. Second bevel gear; 21. Connecting rod; 22. Gear; 23. Gear ring; 24. Fixed seat; 25. Adjusting screw; 26. Limiting groove; 27. Limiting block; 28. Lower protective cage; 29. ​​Upper protective cage; 30. Locking block; 31. Insert rod. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The following is in conjunction with the appendix Figure 1-6 The present invention will be further described below.

[0029] To address the problems existing in the background art, this application proposes the following technical solution: A base 1 and a drive motor 5 are included. Two sets of mounting brackets 2 are fixedly connected to the base 1. One set of mounting brackets 2 has a mounting plate 3 fixedly connected to it, and the other set of mounting brackets 2 has a mounting ring 4 fixedly connected to it. A rotating shaft 7 is coaxially fixedly connected to the drive shaft of the drive motor 5. A mounting plate 6 is fixedly mounted on the rotating shaft 7. The mounting plate 6 and the mounting ring 4 are rotatably connected. A fixed cylinder 11 is fixedly mounted on the outside of the rotating shaft 7. Several sets of fixed plates 12 are fixedly connected to the fixed cylinder 11. A guide plate 13 is detachably mounted on the fixed plate 12. The guide plate 13 is mounted on the fixed plate 12 by bolts. Two sets of guide plates 8 are fixedly connected to the rotating shaft 7. Wires 14 are threaded through the two sets of guide plates 8. A support plate 9 is fixedly connected to the base 1. A twisted wire disc 10 is fixedly mounted on the support plate 9. A constant tension mechanism is provided on the mounting plate 6.

[0030] The conductor reel 13 is mounted on the fixing plate 12. The conductors 14 on the conductor reel 13 pass through the mounting plate 6, the constant tension mechanism, the two sets of guide plates 8, and the stranding reel 10 in sequence. The mounting plate 6 and the guide plates 8 are provided with wire-passing holes. Multiple sets of conductor reels 13 are placed by several sets of fixing plates 12 to hold multiple sets of conductors 14. The drive motor 5 drives the rotating shaft 7 to rotate. The rotating shaft 7 drives the conductor reel 13, the mounting plate 6, and the two sets of guide plates 8 to rotate, so that multiple sets of conductors 14 rotate around the axis of the rotating shaft 7 and are twisted together in the stranding reel 10. The twisted power cable is pulled out at a constant speed by an external traction device (not shown in the attached figure). The stranding reel 10 is composed of multiple layered circular or bobbing frames. The conductors 14 are distributed along the spiral grooves of the stranding reel 10. The stranding reel 10 is a mature existing technology. The constant tension mechanism keeps the tension of the wires released from the conductor reel 13 constant, thereby improving the quality of the power cable stranding.

[0031] To further explain, the constant tension mechanism includes several sets of mounting seats 15 fixedly mounted on the mounting plate 6, a rotating rod 16 rotatably mounted on the mounting seat 15, an upper roller 17 fixedly mounted on the outside of the rotating rod 16, and a lower roller 18 rotatably disposed in the mounting seat 15. One end of the rotating rod 16 is fixedly connected to a first bevel gear 19, one side of the first bevel gear 19 is meshed with a second bevel gear 20, one end of the second bevel gear 20 is fixedly connected to a connecting rod 21, one end of the connecting rod 21 is fixedly mounted with a gear 22, the outside of the gear 22 is meshed with a toothed ring 23, and the toothed ring 23 is fixedly mounted on the inner wall of the mounting ring 4.

[0032] The wire 14 passes between the upper roller 17 and the lower roller 18, and is pressed against both rollers. The connecting rod 21 is rotatably connected to the mounting plate 6. As the rotating shaft 7 drives the mounting plate 6 to rotate, the mounting plate 6 drives the connecting rod 21 to rotate around the rotating shaft 7. The connecting rod 21 drives the gear 22 to rotate around the rotating shaft 7. Because the gear 22 meshes with the gear ring 23 and the gear ring 23 is fixedly installed, the gear 22 rotates. The gear 22 drives the connecting rod 21 and the second bevel gear 20 to rotate. The second bevel gear 20 drives the first bevel gear 1... 9 rotates, the first bevel gear 19 drives the rotating rod 16 and the upper roller 17 to rotate. Due to the friction between the upper roller 17 and the conductor 14, the upper roller 17 pushes the conductor 14 to move when it rotates, realizing the release of the conductor 14 on the conductor reel 13 during the stranding process. Since the rotating shaft 7 maintains a constant speed during the stranding process, the release speed of the conductor 14 is constant, avoiding changes in the release tension due to the reduction of the conductor 14 on the conductor reel 13, ensuring the stability of the release tension during the stranding process, thereby improving the finished quality and stability of the processed power cable.

[0033] Furthermore, the end of the mounting base 15 is threadedly connected to an adjusting screw 25, and one end of the adjusting screw 25 is rotatably mounted to a fixed base 24, with the lower roller 18 rotatably mounted in the fixed base 24.

[0034] By rotating the adjusting screw 25, the position of the fixed seat 24 in the mounting seat 15 can be adjusted, thereby adjusting the distance between the lower roller 18 and the upper roller 17, realizing the clamping of wires 14 of different diameters, expanding the application range of the device and improving its practicality.

[0035] To further explain, a limiting groove 26 is provided on the mounting base 15, and a limiting block 27 is slidably installed in the limiting groove 26. The limiting block 27 is fixedly connected to the side of the fixed base 24.

[0036] The limiting block 27, together with the limiting groove 26, guides and limits the movement of the fixed seat 24, preventing the fixed seat 24 from rotating when the adjusting screw 25 rotates, thus improving the stability of the lower roller 18 during movement and improving the overall stability of the device during use.

[0037] Furthermore, a lower protective cage 28 is fixedly installed between the mounting plate 3 and the mounting ring 4, and an upper protective cage 29 is also rotatably installed between the mounting plate 3 and the mounting ring 4.

[0038] The lower protective cage 28, together with the upper protective cage 29, plays a protective role, preventing injury to personnel from the high-speed rotation of the wire reel 13 during the wire twisting process, eliminating potential safety hazards, and improving the safety of the device.

[0039] Furthermore, both the lower protective cage 28 and the upper protective cage 29 are fixedly installed with locking blocks 30, and insert rods 31 are inserted into the two sets of locking blocks 30.

[0040] Both sets of locking blocks 30 have insertion holes that fit the insertion rods 31. During use, the insertion rods 31 are inserted into the two sets of locking blocks 30, fixing the upper protective cage 29 onto the lower protective cage 28 to prevent the upper protective cage 29 from shaking. When the machine is stopped and the wire reel 13 needs to be replaced, the insertion rods 31 are pulled out from the two sets of locking blocks 30, and the upper protective cage 29 is rotated to open it so that the locking blocks 30 can be replaced (as shown in the attached diagram). Figure 6 (As shown), to improve the ease of use of the device.

[0041] For specific operation, please refer to the following instructions: Install the wire guide spool 13 on the fixed plate 12. The wires 14 on the wire guide spool 13 pass sequentially through the mounting plate 6, between the upper roller 17 and the lower roller 18, through the two sets of guide discs 8, and through the twisting disc 10. The drive motor 5 drives the rotating shaft 7 to rotate. The rotating shaft 7 drives the wire guide spool 13, the mounting plate 6, and the two sets of guide discs 8 to rotate, causing multiple sets of wires 14 to rotate around the axis of the rotating shaft 7 and twist together in the twisting disc 10. During the twisting process, the rotating shaft 7 drives the mounting plate 6 to rotate, while the mounting plate 6 drives the connecting rod 21 to rotate around the rotating shaft 7. The connecting rod 21 drives the gear 22 to rotate around the rotating shaft 7. Gear 22 meshes with gear ring 23 and gear ring 23 is fixedly set. When gear 22 rotates, gear 22 drives connecting rod 21 and second bevel gear 20 to rotate. Second bevel gear 20 drives first bevel gear 19 to rotate. First bevel gear 19 drives rotating rod 16 and upper roller 17 to rotate. Due to the friction between upper roller 17 and wire 14, upper roller 17 pushes wire 14 to move when it rotates, realizing the wire 14 being released from wire reel 13 during the wire twisting process. Since rotating shaft 7 maintains a constant speed during the wire twisting process, the wire release speed of wire 14 is constant, ensuring the stability of wire tension during the wire twisting process.

[0042] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A wire stranding machine for processing power cables, characterized in that, The device includes a base (1) and a drive motor (5). Two sets of mounting brackets (2) are fixedly connected to the base (1). One set of mounting brackets (2) is fixedly connected to a mounting plate (3), and the other set of mounting brackets (2) is fixedly connected to a mounting ring (4). A rotating shaft (7) is coaxially fixedly connected to the drive shaft of the drive motor (5). A mounting plate (6) is fixedly installed on the rotating shaft (7). A fixing cylinder (11) is fixedly installed on the outside of the rotating shaft (7). Several sets of fixing plates (12) are fixedly connected to the fixing cylinder (11). A wire reel (13) is detachably installed on the fixing plate (12). Two sets of guide plates (8) are fixedly connected to the rotating shaft (7). Wires (14) are passed through the two sets of guide plates (8). A support plate (9) is fixedly connected to the base (1). A twisted wire reel (10) is fixedly installed on the support plate (9). A constant tension mechanism is provided on the mounting plate (6).

2. The wire stranding machine for power cable processing according to claim 1, characterized in that, The constant tension mechanism includes several sets of mounting seats (15) fixedly mounted on the mounting plate (6), a rotating rod (16) rotatably mounted on the mounting seat (15), an upper roller (17) fixedly mounted on the outside of the rotating rod (16), and a lower roller (18) rotatably mounted in the mounting seat (15). One end of the rotating rod (16) is fixedly connected to a first bevel gear (19), and a second bevel gear (20) meshes with one side of the first bevel gear (19). One end of the second bevel gear (20) is fixedly connected to a connecting rod (21), and a gear (22) is fixedly mounted on one end of the connecting rod (21). A toothed ring (23) meshes with the outside of the gear (22), and the toothed ring (23) is fixedly mounted on the inner wall of the mounting ring (4).

3. A wire stranding machine for power cable processing according to claim 2, characterized in that, The end of the mounting base (15) is threadedly connected to an adjusting screw (25), and a fixed base (24) is rotatably mounted on one end of the adjusting screw (25). The lower roller (18) is rotatably mounted in the fixed base (24).

4. A wire stranding machine for power cable processing according to claim 3, characterized in that, A limiting groove (26) is provided on the mounting base (15), and a limiting block (27) is slidably installed in the limiting groove (26). The limiting block (27) is fixedly connected to the side of the fixing base (24).

5. A wire stranding machine for power cable processing according to claim 4, characterized in that, A lower protective cage (28) is fixedly installed between the mounting plate (3) and the mounting ring (4), and an upper protective cage (29) is also rotatably installed between the mounting plate (3) and the mounting ring (4).

6. A wire stranding machine for power cable processing according to claim 5, characterized in that, Locking blocks (30) are fixedly installed on both the lower protective cage (28) and the upper protective cage (29), and insert rods (31) are inserted into the two sets of locking blocks (30).

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