High-speed constant-tension communication line pair twister

Abstract

The utility model belongs to the field of wire and cable manufacturing equipment, and particularly relates to a high-speed constant-tension communication wire pair twister, which comprises a wire coil driven to rotate, a twisting bow and a tension adjusting device, the tension adjusting device is arranged between the twisting bow and a wire guiding mechanism, and the tension adjusting device comprises a tension sensor and a tension buffer. The tension buffer comprises a mounting base, a first guide wheel, a guide rail, a tension spring and a supporting rod, the two ends of the tension spring are connected with the supporting rod and the sliding block respectively, the sliding block abuts against the inner side face of one frame plate under the action of the tension spring, the tension sensor comprises a second guide wheel and a pressure sensor, and a rotating shaft of the second guide wheel is parallel to a rotating shaft of the first guide wheel. When the pair twister works, a twisted cable sequentially passes through the first guide wheel and the second guide wheel, then enters the wire guiding mechanism and is finally wound on the wire coil, and the pair twister has the advantages of being high in working efficiency, good in twisting quality and easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of wire and cable manufacturing equipment, specifically relating to a high-speed constant tension communication line twisting machine. Background Technology

[0002] To reduce interference, communication lines need to be twisted. Existing twisting machines typically use a twisting bow to twist the cable. The cable to be twisted enters the twisting machine from one end of the central shaft, is twisted by the rotating bow, and then coiled onto a reel under the guidance of the conductor mechanism. To produce high-quality communication lines, it is essential to maintain a constant twist pitch during the twisting process. Cable tension has a significant impact on the pitch during twisting. To ensure stable cable tension, existing twisting machines generally have a tension regulator (see patent application number 202310574050 X, which describes a twisting machine, twisted cable, its preparation method, and a cable containing the same). The existing tension regulator is located between the pay-off mechanism and the twisting bow, resulting in a complex structure. Furthermore, it cannot sense the effect on cable tension caused by the cable moving back and forth along the reel shaft during take-up, which leads to changes in the twist pitch and makes it difficult to improve twisting quality. Additionally, the existing reel shaft is perpendicular to the central shaft of the twisting machine, requiring axial rotation of the reel for loading and unloading, making the operation complex. Utility Model Content

[0003] The purpose of this invention is to provide a high-speed constant tension communication line twisting machine with simple structure and high twisting quality.

[0004] The technical solutions for achieving the above objectives include the following:

[0005] A high-speed constant tension communication cable twisting machine includes a frame, a central shaft horizontally mounted on the frame, a twisted bow rotating around the central shaft, a driven rotating cable reel, and a tension adjusting device. The cable reel is positioned in the middle of the frame, with its rotation axis parallel to and below the central shaft. A cable guide mechanism is located above the cable reel, with the cable path as a reference. The tension adjusting device is positioned between the twisted bow and the cable guide mechanism. The tension adjusting device includes a tension sensor and a tension damper. The tension damper includes a mounting base, a first guide wheel, a guide rail, a tension spring, and a support rod. The mounting base is positioned above the central shaft and on one side of the cable guide mechanism. It includes a base plate and two parallel and spaced-apart frame plates connected to the base plate. The base plate is connected to the frame. The guide rail... Both ends of the cable are connected to two frame plates respectively. A slider is installed on the guide rail. The first guide wheel is connected to the slider. The rotation axis of the first guide wheel is perpendicular to the guide rail. The support rod is set parallel to the guide rail and is installed on the frame. The two ends of the tension spring are connected to the support rod and the slider respectively. Under the action of the tension spring, the slider abuts against the inner side of one frame plate. The position of the support rod along its length direction is adjustable to adjust the tension of the tension spring. The tension sensor includes a second guide wheel and a pressure sensor. The second guide wheel is installed on the frame above the tension buffer. The rotation axis of the second guide wheel is parallel to the rotation axis of the first guide wheel. The pressure sensor is installed between the rotation axis of the second guide wheel and the frame. During operation, the twisted cable passes through the first and second guide wheels in sequence, then enters the wire guide mechanism, and finally is coiled on the reel.

[0006] Furthermore, the support rod has a slot along its length, and the frame has a positioning hole. The support rod is movably installed in a groove on the mounting base, and the support rod and the frame are fixed by positioning bolts inserted into the slot and positioning hole.

[0007] Furthermore, a reel lift is provided below the reel.

[0008] Furthermore, the guide rail is set horizontally.

[0009] Furthermore, the guide rail has two parallel rails.

[0010] When the aforementioned high-speed constant tension communication cable twisting machine is working, the tension adjustment device is set between the twisting bow and the take-up mechanism (the conductor mechanism above the reel). When the twisted cable is wound on the reel, the cable swings back and forth along the central axis of the reel. The speed of the reel is adjusted according to the changes in the tension sensor to ensure that the cable winding speed remains stable. When the conductor mechanism pulls the cable in a reciprocating direction and switches, the cable tension changes abruptly. The tension spring on the tension buffer buffers the abrupt change and absorbs the excess energy, thereby reducing the impact of the tension change on the cable movement.

[0011] This invention relates to a high-speed constant tension communication cable twisting machine with a tension adjustment device that can buffer sudden changes in cable tension caused by the reciprocating motion of the cable coil, resulting in a more stable cable conveying speed and ensuring a stable cable twisting pitch, thus producing higher quality communication cables. The coil axis of this invention is parallel to the central axis of the twisting machine. The coil can be installed simply by rolling it directly under the twisting machine and raising it; removal is done in reverse order. The entire process does not require changing the coil's axial direction, which improves the efficiency of loading and unloading coils. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the high-speed constant tension communication line twisting machine structure as an example.

[0013] Figure 2 This is a schematic diagram of the tension buffer structure in an embodiment;

[0014] Figure 3 The diagram illustrates the working principle of a high-speed constant tension communication line twister as an example.

[0015] In the diagram, 1. Frame; 2. Wire reel; 3. Bow; 4. Wire conductor mechanism; 5. Second guide wheel; 6. Tension buffer; 6-1. Base plate; 6-2. Frame plate; 6-3. First guide wheel; 6-4. Guide rail; 6-5. Tension spring; 6-6. Support rod; 6-6-1. Bar hole; 7. Twisted pair wire; 8. Elevator. Detailed Implementation

[0016] The present invention will be described in detail below with reference to the embodiments.

[0017] See Figures 1 to 3A high-speed constant tension communication line twisting machine includes a frame 1, a central shaft horizontally mounted on the frame 1, a bow 3 rotating around the central shaft, a driven rotating wire spool 2, and a tension adjusting device. The wire spool 2 is positioned in the middle of the frame 1, and a wire spool lift 8 is located below the wire spool 2. The rotating shaft of the wire spool 2 is parallel to the central shaft and located below the central shaft. A conductor mechanism 4 is located above the wire spool 2, with the path of the twisted wire 7 as a reference. The tension adjusting device is located between the bow 3 and the conductor mechanism 4, and includes a tension sensor and a tension buffer 6. The tension buffer 6 includes... The mounting base, first guide wheel 6-3, guide rail 6-4, tension spring 6-5, and support rod 6-6 are all present. The mounting base is located above the central shaft and to the right of the guide mechanism 4. It includes a base plate 6-1 and two frame plates 6-2 connected to the base plate 6-1. The two frame plates 6-2 are parallel and spaced apart on the left and right sides of the base plate 6-1. The base plate 6-1 is fixed to the frame 1. The guide rail 6-4 is horizontally arranged, with its two ends connected to the two frame plates 6-2 respectively. The guide rail 6-4 has two parallel rails, one above the other. A slider is mounted on the guide rail 6-4, and the first guide wheel 6-3 is connected to the slider. The axle of wheel 6-3 is perpendicular to guide rail 6-4 and arranged along the front-to-back direction. Support rod 6-6 is parallel to guide rail 6-4. Support rod 6-6 has a slotted hole 6-6-1 along its length. The frame 1 has several spaced positioning holes along the slotted hole 6-6-1. Support rod 6-6 is movably installed in a groove at the bottom of the mounting base. Support rod 6-6 and frame 1 are fixed by positioning bolts inserted into the slotted hole 6-6-1 and the positioning holes. The two ends of tension spring 6-5 are connected to the slider and the left end of support rod 6-6, respectively. Under the action of tension spring 6-5, the slider abuts against the left side... The frame plate 6-2 is fixed at different positions by positioning bolts to make the position of the support rod 6-6 along its length adjustable, so as to adjust the tension of the tension spring 6-5. The tension sensor includes a second guide wheel 5 and a pressure sensor. The second guide wheel 5 is installed on the frame 1 on the upper right side of the tension buffer 6. The rotation axis of the second guide wheel 5 is parallel to the rotation axis of the first guide wheel 6-3. The pressure sensor is installed between the rotation axis of the second guide wheel 5 and the frame 1. During operation, the twisted wires 7 pass through the first and second guide wheels in sequence, then enter the wire guide mechanism 4, and finally are coiled on the wire reel 2.

[0018] The high-speed constant tension communication line twisting machine of this embodiment adopts a tension adjustment device to buffer sudden changes in cable tension, which can effectively improve the twisting quality and increase the twisting speed under the same conditions, thus improving production efficiency. In addition, since the axial direction does not need to be changed when loading and unloading the reel 2, it is conducive to simplifying the structure, reducing failures, and making operation simpler.

Claims

1. A high-speed constant tension communication wire pair stranding machine comprising a frame, a center shaft horizontally arranged on the frame, a stranding bow rotating around the center shaft, a wire reel driven to rotate, and a tension adjusting device, characterized in that, The wire reel is arranged in the middle of the rack, the rotating shaft of the wire reel is parallel to the central shaft and arranged below the central shaft, a wire guide mechanism is arranged above the wire reel, the tension adjusting device is arranged between the bow and the wire guide mechanism, the tension adjusting device comprises a tension sensor and a tension buffer, the tension buffer comprises a mounting base, a first guide wheel, a guide rail, a tension spring and a support rod, the mounting base is arranged above the central shaft and on one side of the wire guide mechanism, the mounting base comprises a bottom plate and two rack plates connected to the bottom plate, the two rack plates are parallel and arranged at intervals, the bottom plate is connected to the rack, the two ends of the guide rail are connected to the two rack plates respectively, a sliding block is arranged on the guide rail, the first guide wheel is connected to the sliding block, the rotating shaft of the first guide wheel is perpendicular to the guide rail, the support rod is arranged parallel to the guide rail, the support rod is arranged on the rack, the two ends of the tension spring are connected to the support rod and the sliding block respectively, under the action of the tension spring, the sliding block abuts against the inner side of one rack plate, the position of the support rod along the length direction of the support rod is adjustable, so as to adjust the tension of the tension spring, the tension sensor comprises a second guide wheel and a pressure sensor, the second guide wheel is arranged on the rack above the tension buffer, the rotating shaft of the second guide wheel is parallel to the rotating shaft of the first guide wheel, the pressure sensor is arranged between the rotating shaft of the second guide wheel and the rack, in working, the twisted cable passes through the first guide wheel and the second guide wheel in sequence, then enters the wire guide mechanism and finally is wound on the wire reel.

2. The high speed constant tension communications wire pair stranding machine of claim 1, wherein, The support rod is provided with a slot along the length direction of the support rod, the rack is provided with a positioning hole, the support rod is movably arranged in the groove arranged at the bottom of the mounting base, and the support rod and the rack are fixed by inserting a positioning bolt into the slot and the positioning hole.

3. The high speed constant tension communications wire pair stranding machine of claim 1 wherein, A wire reel elevator is arranged below the wire reel.

4. The high speed constant tension communications wire pair stranding machine of claim 1 wherein, The guide rail is arranged horizontally.

5. The high speed constant tension communications wire pair stranding machine of claim 1 wherein, The guide rail is provided with two parallel guide rails. The support rod is provided with a slot along the length direction of the support rod, the rack is provided with a positioning hole, the support rod is movably arranged in the groove arranged at the bottom of the mounting base, and the support rod and the rack are fixed by inserting a positioning bolt into the slot and the positioning hole.

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