Single stranding machine for armored cable

Abstract

The utility model discloses a single stranding machine for an armored cable, which can adjust the tension of the cable at any time during working, and simultaneously prevents the cable from being untwisted in a conduction process, so that the cable is loosened and the stranding effect is not influenced. Comprising a workbench, a first rotating shaft and a second rotating shaft which can rotate are arranged on the workbench, a pay-off assembly is fixedly installed between the first rotating shaft and the second rotating shaft, and a clamping device used for fixing a take-up winding roller is rotatably arranged at the end, close to the second rotating shaft, of the first rotating shaft; the end, away from the first rotating shaft, of the second rotating shaft is fixedly connected with a tension adjusting assembly, the rotation center of the tension adjusting assembly, the rotation center of the first rotating shaft and the rotation center of the second rotating shaft coincide, and the tension adjusting assembly comprises a connecting frame rotationally installed on the workbench; a first wire guide wheel and a second wire guide wheel are rotatably installed on the connecting frame, and the first wire guide wheel can slide relative to the second wire guide wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing and manufacturing, in particular to a single twisting machine for armored cables. Background Art

[0002] Single twisting machine is mainly used to twist PE or PVC coated core wires such as control cables, communication cables, power cables, etc. It is widely used in making stranded wires. For example, the Chinese patent with publication number CN103632773A discloses a frame-type single-twister and its working method, which includes: a pair of brackets 2, motors 1, 2 and 3 are provided on the base, a rectangular frame bearing is matched with the pair of brackets 2, each bracket 2 is provided with a bearing seat 1, the frame is rotatably matched with the bearing seat 1, the lead wheels are respectively rotatably matched with the rectangular frame on the left side of the frame through a rotating shaft, the motor 1 drives each lead wheel to rotate around the rotating shaft, and a plurality of wire grooves are provided on the outer circumference of the lead wheel; the wire drum is rotatably matched with the rectangular frame on the right side of the frame and the center line of the wire drum coincides with the rotation center line of the frame; a wire arrangement mechanism for evenly winding the cable on the wire drum is fixedly arranged above the wire drum in the rectangular frame on the right side of the frame, the wire arrangement mechanism is provided with a wire arrangement frame, and the wire arrangement frame is provided with a laser rangefinder 1 and a laser rangefinder 2; the frame-type single-twister adopts a laser rangefinder to measure the winding thickness on the wire drum and ensures that the lead speed and the winding speed are accurately matched through the cooperation of the motor and the differential.

[0003] In this patent, two lead wheels are arranged side by side in the vertical direction, and the distance between the two lead wheels is fixed and cannot be adjusted. This causes the cable to be easily twisted during the twisting process, affecting the twisting effect. At the same time, when the lead speed and the winding speed are not adjusted in time, the cable tension is too large or too small, which may cause the cable to break or detach from the lead wheel, affecting the twisting effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the defects of the existing technical problems and provide a single twisting machine for armored cables, in which the wire taking-up and wire releasing can be controlled separately, and the tension of the cable can be adjusted during operation, while avoiding the back-twisting of the cable during the conduction process, which makes the cable loose and affects the twisting effect.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a single twisting machine for armored cables, comprising a workbench, on which a rotatable first rotating shaft and a second rotating shaft are arranged in a horizontal direction, the first rotating shaft and the second rotating shaft are both hollow tubular structures, a pay-off assembly is fixedly installed between the first rotating shaft and the second rotating shaft, a clamping device for fixing a take-up roller is rotatably provided at one end of the first rotating shaft close to the second rotating shaft, a tension adjustment assembly is fixedly connected to one end of the second rotating shaft away from the first rotating shaft, the tension adjustment assembly can rotate synchronously with the first rotating shaft and the second rotating shaft, the rotation centers of the tension adjustment assembly, the first rotating shaft and the second rotating shaft coincide, the tension adjustment assembly comprises a connecting frame rotatably mounted on the workbench, and one end of the connecting frame is fixedly connected to the second rotating shaft, a first wire wheel and a second wire wheel are rotatably mounted on the connecting frame, the first wire wheel and the second wire wheel are arranged side by side in the horizontal direction, and the first wire wheel can slide relative to the second wire wheel.

[0006] Furthermore, the wire-paying assembly includes a wire-paying frame fixedly installed between the first rotating shaft and the second rotating shaft, the wire-paying frame includes two horizontal beams parallel to the workbench and two vertical beams perpendicular to the workbench, the two horizontal beams are fixedly installed between the two vertical beams, so that the horizontal beams and the vertical beams form a rectangular frame structure, and the two vertical beams are fixedly connected to the first rotating shaft and the second rotating shaft respectively, so that the first rotating shaft and the second rotating shaft can drive the wire-paying frame to rotate synchronously when they rotate.

[0007] Furthermore, the pay-off assembly also includes a pay-off drum slidably mounted on the pay-off frame, a rotatable first screw is provided on the cross beam, the pay-off drum is threadedly connected to the first screw, the first transmission motor is fixedly mounted on the vertical beam close to the first rotating shaft, a worm gear reducer is connected to the first transmission motor, and the output end of the worm gear reducer is connected to the first screw through a belt drive.

[0008] Furthermore, the clamping device includes a connecting sleeve rotatably mounted in the first rotating shaft, and a movable top and a pressure plate arranged on the connecting sleeve and slidable relative to the first rotating shaft. A fixed top is rotatably mounted on one end of the second rotating shaft close to the first rotating shaft.

[0009] Furthermore, a slidable sliding sleeve is provided in the connecting sleeve, and one end of the sliding sleeve close to the second rotating shaft extends outside the connecting sleeve, and the movable top and the pressure plate are fixedly mounted on one end of the sliding sleeve close to the second rotating shaft.

[0010] Furthermore, an end cover is fixedly installed on one end of the sliding sleeve away from the second rotating shaft, and a second screw rod is threaded on the end cover. A second transmission motor is fixedly installed on the workbench, and the second transmission motor is used to drive the second screw rod to rotate. The output end of the second transmission motor is fixedly connected to the other end of the second screw rod.

[0011] Furthermore, a first driving assembly for driving the first rotating shaft and the second rotating shaft to rotate is provided on the workbench, and the first driving assembly includes a first motor fixedly mounted on the workbench and a first transmission wheel fixedly sleeved on the outer wall of the first rotating shaft, and the first motor is connected to the first transmission wheel through a belt drive.

[0012] Furthermore, the workbench is also provided with a second drive assembly for driving the clamping device to rotate, the second drive assembly includes a second motor fixedly mounted on the workbench, the connecting sleeve extends to the outside of the first rotating shaft at one end away from the second rotating shaft, a second transmission wheel is fixedly mounted on the outer wall of the part of the connecting sleeve extending outside the first rotating shaft, and the second motor is connected to the second transmission wheel through a belt drive.

[0013] Furthermore, the workbench is also provided with a wire assembly, which includes a wire roller assembly, a wire tube and a wire rack. The wire roller assembly is fixedly installed on the workbench, and the wire roller assembly is located on the side of the tension adjustment assembly away from the second rotating shaft. The wire tube is fixedly installed between the second rotating shaft and the tension adjustment assembly. The wire rack is fixedly installed on the outer wall of the second rotating shaft. A wire outlet is opened on the side wall of the second rotating shaft, and the position of the wire outlet corresponds to the wire rack.

[0014] Furthermore, a sliding groove is provided on the connecting frame, a sliding column is provided in the sliding groove, the first wire wheel is rotatably mounted on the sliding column, and a driving cylinder for driving the first wire wheel to slide is also fixedly mounted on the connecting frame, and the gas rod of the driving cylinder is fixedly connected to the other end of the sliding column.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects:

[0016] 1. The first motor and the second motor drive the pay-off assembly and the take-up roller to rotate separately, so that the limited pay-off can be controlled separately and rotate in the same direction or in the opposite direction;

[0017] 2. During operation, the distance between the first wire wheel and the second wire wheel can be adjusted to adjust the tension of the cable;

[0018] 3. The tension adjustment assembly can rotate synchronously with the second rotating shaft, and the first wire wheel and the second wire wheel are arranged side by side in the horizontal direction, so as to avoid the cable from twisting back during the transmission process, which makes the cable loose and affects the twisting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a single twisting machine for armored cables of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a single twisting machine for armored cables of the utility model from another angle;

[0021] Figure 3 for Figure 1 A magnified view of part A in FIG.

[0022] Figure 4 for Figure 1 A magnified view of part B in FIG.

[0023] Figure 5 for Figure 2 The enlarged view of the C part in FIG.

[0024] Figure 6 It is a cross-sectional schematic diagram of a single twisting machine for armored cables of the utility model;

[0025] Figure 7 for Figure 6 A schematic diagram of the structure of the tension adjustment component part;

[0026] Figure 8 for Figure 6 A schematic structural diagram of the second rotating shaft portion;

[0027] Fig. 9 for Figure 6 A schematic diagram of the structure of the pay-off component part;

[0028] Fig.10 for Figure 6 Schematic diagram of the structure of the first rotating shaft part.

[0029] Figure numerals: 1, workbench; 2, first rotating shaft; 3, second rotating shaft; 4, pay-off assembly; 5, tension adjustment assembly; 6, clamping device; 7, first driving assembly; 8, second driving assembly; 9, wire assembly; 10, bearing seat; 11, hydraulic lifting platform; 31, fixed top; 32, wire outlet; 41, crossbeam; 411, slide rail; 42, vertical beam; 43, pay-off drum; 431, sliding block; 44, first screw rod; 45, first transmission motor; 46, reducer; 51, connecting frame; 511, sliding groove; 512, sliding Moving column; 513, sliding bar; 514, sliding plate; 515, infrared sensor; 52, first wire wheel; 53, second wire wheel; 54, driving cylinder; 61, connecting sleeve; 62, movable top; 63, pressure plate; 631, pressure sensor; 64, sliding sleeve; 65, end cover; 66, second screw rod; 67, second transmission motor; 71, first motor; 72, first transmission wheel; 81, second motor; 82, second transmission wheel; 91, wire roller assembly; 92, wire tube; 93, wire rack; 100, wire take-up roller. DETAILED DESCRIPTION

[0030] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0031] In the present embodiment, a single twisting machine for armored cables is provided, including a workbench 1, on which a rotatable first rotating shaft 2 and a second rotating shaft 3 are provided in a horizontal direction, a pay-off assembly 4 is fixedly installed between the first rotating shaft 2 and the second rotating shaft 3, an end of the second rotating shaft 3 away from the first rotating shaft 2 is fixedly connected to a tension adjustment assembly 5, and an end of the first rotating shaft 2 close to the second rotating shaft 3 is rotatably provided with a clamping device 6 for fixing a winding roller 100, the tension adjustment assembly 5 can rotate synchronously with the first rotating shaft 2 and the second rotating shaft 3, and the rotation centers of the tension adjustment assembly 5, the first rotating shaft 2 and the second rotating shaft 3 coincide, and the workbench 1 is also provided with a first driving assembly 7 for driving the first rotating shaft 2 and the second rotating shaft 3 to rotate and a second driving assembly 8 for driving the clamping device 6 to rotate.

[0032] In this embodiment, the pay-off assembly 4 includes a pay-off frame fixedly installed between the first rotating shaft 2 and the second rotating shaft 3, and the pay-off frame includes two horizontal beams 41 parallel to the workbench 1 and two vertical beams 42 perpendicular to the workbench 1. The two horizontal beams 41 are fixedly installed between the two vertical beams 42, so that the horizontal beams 41 and the vertical beams 42 form a rectangular frame structure, and the two vertical beams 42 are fixedly connected to the first rotating shaft 2 and the second rotating shaft 3, respectively, so that the first rotating shaft 2 and the second rotating shaft 3 can drive the pay-off frame to rotate synchronously when rotating.

[0033] In this embodiment, the pay-off assembly 4 also includes a pay-off drum 43 slidably mounted on the pay-off frame. Specifically, two slide rails 411 are provided on one of the crossbeams 41 of the pay-off frame, and a sliding block 421 corresponding to the slide rails 411 is provided on the pay-off drum 43, so that the pay-off drum 43 can slide on the crossbeam 41. A rotatable first screw rod 412 is also provided on the crossbeam 41. The pay-off drum 43 is threadedly connected to the first screw rod 412. A first transmission motor 45 is fixedly mounted on the vertical beam 42 close to the first rotating shaft 2. A reducer 46 is connected to the first transmission motor 45, and an output end of the reducer 46 is connected to the first screw rod 412 through a belt drive, so that the first transmission motor 45 can drive the first screw rod 412 to rotate, thereby allowing the pay-off drum 43 to slide on the crossbeam 41 to perform a pay-off action.

[0034] In this embodiment, distance sensors (not shown in the figure) are provided at both ends of the pay-off reel 43, and the distance between the pay-off reel 43 and the left and right vertical beams 42 measured by the distance sensor can be used to control the first transmission motor 45 to rotate forward and reverse, so that the pay-off reel 43 can slide back and forth on the horizontal beam 41, so that the cable is evenly wound on the take-up roller 100.

[0035] In this embodiment, the first rotating shaft 2 and the second rotating shaft 3 are both hollow tubular structures. The clamping device 6 includes a connecting sleeve 61 rotatably mounted in the first rotating shaft 2 and a movable top 62 and a pressure plate 63 arranged on the connecting sleeve 61 and slidable relative to the first rotating shaft 2. Specifically, the connecting sleeve 61 can be rotatably mounted in the first rotating shaft 2 through a bearing. A slidable sliding sleeve 64 is provided in the connecting sleeve 61. The end of the sliding sleeve 64 close to the second rotating shaft 3 extends to the outside of the connecting sleeve 61. The movable top 62 and the pressure plate 63 are fixedly mounted on the end of the sliding sleeve 64 close to the second rotating shaft 3. A guide key (not shown in the figure) is fixedly provided on the inner wall of the connecting sleeve 61. A keyway (not shown in the figure) corresponding to the guide key is provided on the outer wall of the sliding sleeve 64, so that the sliding sleeve 64 can slide in the connecting sleeve 61, and an end cover 65 is fixedly installed at one end of the sliding sleeve 64 away from the second rotating shaft 3, and a second screw rod 66 is threadedly connected to the end cover 65. A second transmission motor 67 is fixedly installed on the workbench 1, and the second transmission motor 67 is used to drive the second screw rod 66 to rotate. The output end of the second transmission motor 67 is fixedly connected to the other end of the second screw rod 66. When the second transmission motor 67 drives the second screw rod 66 to rotate, it can drive the sliding sleeve 64 to slide in the connecting sleeve 61, so that the movable top 62 and the pressure plate 63 can slide relative to the first rotating shaft 2.

[0036] In this embodiment, a fixed top 31 is rotatably mounted on one end of the second rotating shaft 3 close to the first rotating shaft 2, and the take-up roller 100 can be fixed between the first rotating shaft 2 and the second rotating shaft 3 by the cooperation of the fixed top 31 and the movable top 62. Specifically, a hydraulic lifting platform 11 for lifting or lowering the take-up roller 100 is provided on the workbench 1. The hydraulic lifting platform 11 lifts the take-up roller 100 to between the fixed top 31 and the movable top 62, and the second transmission motor 67 drives the second screw rod 66 to rotate, so that the movable top 62 is moved to the second rotating shaft 2. The tip 62 moves close to the fixed tip 31 until the fixed tip 31 and the movable tip 62 are both inserted into the central through hole of the take-up roller 100 and clamp the take-up roller 100. The pressure plate 63 is tightly attached to one side end face of the take-up roller 100. A pressure sensor 631 is provided on the pressure plate 63. The extension amount of the movable tip 62 can be controlled by the pressure value fed back by the pressure sensor 631 to avoid damage to the take-up roller 100 caused by excessive pressure from the movable tip 62, or insufficient fixation caused by insufficient pressure.

[0037] In this embodiment, the first driving assembly 7 includes a first motor 71 fixedly mounted on the workbench 1 and a first transmission wheel 72 fixedly sleeved on the outer wall of the first rotating shaft 2. The first motor 71 can be connected to the first transmission wheel 72 through a belt drive, so that the first motor 71 can drive the first rotating shaft 2 to rotate. Since the pay-off assembly 4 is fixedly mounted between the first rotating shaft 2 and the second rotating shaft 3, the first rotating shaft 2 can synchronously drive the second rotating shaft 3 and the pay-off assembly 4 to rotate when rotating. The second driving assembly 8 includes a second motor 81 fixedly mounted on the workbench 1, and the connecting sleeve 61 is away from the second rotating shaft. One end of the shaft 3 extends to the outside of the first rotating shaft 2, and a second transmission wheel 82 is fixedly installed on the outer wall of the part of the connecting sleeve 61 extending to the outside of the first rotating shaft 2. The second motor 81 can be connected to the second transmission wheel 82 through belt drive. The second motor 81 can drive the connecting sleeve 61 to rotate. Since the movable top 62 is arranged on the connecting sleeve 61, and the winding roller 100 is fixedly installed between the fixed top 31 and the movable top 62, the winding roller 100 can be driven to rotate when the connecting sleeve 61 rotates, thereby realizing the independent rotation of the pay-off assembly 4 and the winding roller 100, as well as the same direction or reverse rotation.

[0038] In this embodiment, a wire assembly 9 is also provided on the workbench 1, and the wire assembly 9 includes a wire roller assembly 91, a wire tube 92 and a wire rack 93. The wire roller assembly 91 is fixedly installed on the workbench 1, and the wire roller assembly 91 is located on the side of the tension adjustment assembly 5 away from the second rotating shaft 3. The wire tube 92 is fixedly installed between the second rotating shaft 3 and the tension adjustment assembly 5. The wire rack 93 is fixedly installed on the outer wall of the second rotating shaft 3. A wire outlet 32 ​​is opened on the side wall of the second rotating shaft 3, and the position of the wire outlet 32 ​​corresponds to the wire rack 93.

[0039] In this embodiment, the tension adjustment assembly 5 includes a connecting frame 51 rotatably mounted on the workbench 1, and one end of the connecting frame 51 is fixedly connected to the second rotating shaft 3 through a wire tube 92, so that the second rotating shaft 3 can drive the tension adjustment assembly 5 to rotate synchronously when rotating. The tension adjustment assembly 5 also includes a first wire wheel 52 and a second wire wheel 53 rotatably mounted on the connecting frame 51. The first wire wheel 52 and the second wire wheel 53 are arranged side by side in the horizontal direction, and the first wire wheel 52 can slide relative to the second wire wheel 53. A driving cylinder 54 for driving the first wire wheel 52 to slide is also fixedly mounted on the connecting frame 51. Specifically, a sliding groove 511 is provided on the connecting frame 51, and a sliding column 512 is provided in the sliding groove 51 ... The wire wheel 52 is rotatably mounted on the sliding column 512, and the air rod of the driving cylinder 54 is fixedly connected to the other end of the sliding column 512, so that when the driving cylinder 54 is working, the extension or retraction of its air rod can drive the first wire wheel 52 to slide relative to the second wire wheel 53. The second wire wheel 53 is provided with a tension sensor (not shown in the figure). When working, the driving cylinder 54 can be controlled according to the numerical value feedback from the tension sensor to adjust the spacing between the first wire wheel 52 and the second wire wheel 53, thereby adjusting the tension of the cable. At the same time, since the tension adjustment component 5 can rotate synchronously with the second rotating shaft 3, and the first wire wheel 52 and the second wire wheel 53 are arranged side by side in the horizontal direction, the cable is prevented from twisting back during the transmission process, which makes the cable loose and affects the twisting effect.

[0040] In order to improve the stability of the sliding column 512 when sliding, two sliding bars 513 are provided on the connecting frame 51 , and a sliding plate 514 is fixedly installed on the sliding column 512 . The sliding plate 514 is slidably connected to the connecting frame 51 through the sliding bars 513 .

[0041] In this embodiment, an infrared sensor 515 is also provided on the connecting frame 51, which can function as a meter.

[0042] In this embodiment, the connecting frame 51 , the first rotating shaft 2 , and the second rotating shaft 3 are all installed on the workbench 1 through the bearing seat 10 .

[0043] The use process of the utility model is as follows: the hydraulic lifting platform 11 lifts the take-up roller 100 to between the fixed top 31 and the movable top 62, and the second transmission motor 67 drives the second screw rod 66 to rotate, so that the movable top 62 moves close to the fixed top 31, until the fixed top 31 and the movable top 62 are both inserted into the central through hole of the take-up roller 100 and the take-up roller 100 is clamped; the cable passes through the wire roller assembly 91, the tension adjustment assembly 5, the wire tube 92, the second rotating shaft 3, the wire rack 93 and the pay-off drum 43 in sequence and is wound onto the take-up roller 100 The first motor 71 and the second motor 81 drive the pay-off assembly 4 and the take-up roller 100 to rotate separately, and at the same time, the pay-off drum 43 slides back and forth on the crossbeam 41, so that the cable is evenly wound on the take-up roller 100; when working, the cylinder 54 is driven to move according to the numerical control feedback from the tension sensor to adjust the distance between the first wire wheel 52 and the second wire wheel 53, thereby adjusting the tension of the cable. At the same time, since the connecting frame 51 can rotate synchronously with the second rotating shaft 3, the cable is prevented from twisting back during the transmission process, which makes the cable loose and affects the twisting effect.

[0044] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single twisting machine for armored cables, comprising a workbench (1), wherein a first rotating shaft (2) and a second rotating shaft (3) are rotatably arranged on the workbench (1) in a horizontal direction, wherein the first rotating shaft (2) and the second rotating shaft (3) are both hollow tubular structures, a pay-off assembly (4) is fixedly installed between the first rotating shaft (2) and the second rotating shaft (3), and a clamping device (6) for fixing a take-up roller (100) is rotatably arranged at one end of the first rotating shaft (2) close to the second rotating shaft (3), characterized in that: The end of the second rotating shaft (3) away from the first rotating shaft (2) is fixedly connected with a tension adjustment component (5), and the tension adjustment component (5) can rotate synchronously with the first rotating shaft (2) and the second rotating shaft (3). The rotation centers of the tension adjustment component (5), the first rotating shaft (2) and the second rotating shaft (3) coincide. The tension adjustment component (5) comprises a connecting frame (51) rotatably mounted on the workbench (1), and one end of the connecting frame (51) is fixedly connected to the second rotating shaft (3). A first wire wheel (52) and a second wire wheel (53) are rotatably mounted on the connecting frame (51). The first wire wheel (52) and the second wire wheel (53) are arranged side by side in a horizontal direction, and the first wire wheel (52) can slide relative to the second wire wheel (53).

2. A single twisting machine for armored cables according to claim 1, characterized in that: The pay-off assembly (4) comprises a pay-off frame fixedly mounted between the first rotating shaft (2) and the second rotating shaft (3), the pay-off frame comprising two cross beams (41) parallel to the workbench (1) and two vertical beams (42) perpendicular to the workbench (1), the two cross beams (41) being fixedly mounted between the two vertical beams (42) so that the cross beams (41) and the vertical beams (42) form a rectangular frame structure, the two vertical beams (42) being fixedly connected to the first rotating shaft (2) and the second rotating shaft (3) respectively so that the first rotating shaft (2) and the second rotating shaft (3) can drive the pay-off frame to rotate synchronously when rotating.

3. A single twisting machine for armored cables according to claim 2, characterized in that: The pay-off assembly (4) further comprises a pay-off drum (43) slidably mounted on the pay-off frame, a rotatable first screw rod (412) is provided on the cross beam (41), the pay-off drum (43) is threadedly connected to the first screw rod (412), a first transmission motor (45) is fixedly mounted on the vertical beam (42) close to the first rotating shaft (2), a reducer (46) is connected to the first transmission motor (45), and an output end of the reducer (46) is connected to the first screw rod (412) via a belt drive.

4. A single twisting machine for armored cables according to claim 1, characterized in that: The clamping device (6) comprises a connecting sleeve (61) rotatably mounted inside the first rotating shaft (2), and a movable center point (62) and a pressure plate (63) arranged on the connecting sleeve (61) and slidable relative to the first rotating shaft (2); a fixed center point (31) is rotatably mounted on one end of the second rotating shaft (3) close to the first rotating shaft (2).

5. A single twisting machine for armored cables according to claim 4, characterized in that: A slidable sliding sleeve (64) is provided inside the connecting sleeve (61), and one end of the sliding sleeve (64) close to the second rotating shaft (3) extends outside the connecting sleeve (61), and the movable top (62) and the pressure plate (63) are fixedly mounted on one end of the sliding sleeve (64) close to the second rotating shaft (3).

6. A single twisting machine for armored cables according to claim 5, characterized in that: An end cover (65) is fixedly mounted on one end of the sliding sleeve (64) away from the second rotating shaft (3); a second screw rod (66) is threadedly connected to the end cover (65); a second transmission motor (67) is fixedly mounted on the workbench (1); the second transmission motor (67) is used to drive the second screw rod (66) to rotate; an output end of the second transmission motor (67) is fixedly connected to the other end of the second screw rod (66).

7. A single twisting machine for armored cables according to claim 1, characterized in that: A first driving assembly (7) for driving the first rotating shaft (2) and the second rotating shaft (3) to rotate is provided on the workbench (1), the first driving assembly (7) comprising a first motor (71) fixedly mounted on the workbench (1) and a first transmission wheel (72) fixedly sleeved on the outer wall of the first rotating shaft (2), the first motor (71) being connected to the first transmission wheel (72) via a belt drive.

8. A single twisting machine for armored cables according to claim 4, characterized in that: The workbench (1) is also provided with a second drive assembly (8) for driving the clamping device (6) to rotate, the second drive assembly (8) comprising a second motor (81) fixedly mounted on the workbench (1), one end of the connecting sleeve (61) away from the second rotating shaft (3) extending to the outside of the first rotating shaft (2), a second transmission wheel (82) is fixedly mounted on the outer wall of the portion of the connecting sleeve (61) extending to the outside of the first rotating shaft (2), and the second motor (81) is connected to the second transmission wheel (82) via a belt drive.

9. A single twisting machine for armored cables according to claim 1, characterized in that: The workbench (1) is also provided with a wire assembly (9), the wire assembly (9) comprising a wire roller assembly (91), a wire tube (92) and a wire rack (93); the wire roller assembly (91) is fixedly mounted on the workbench (1), and the wire roller assembly (91) is located on a side of the tension adjustment assembly (5) away from the second rotating shaft (3); the wire tube (92) is fixedly mounted between the second rotating shaft (3) and the tension adjustment assembly (5); the wire rack (93) is fixedly mounted on the outer wall of the second rotating shaft (3); a wire outlet (22) is provided on the side wall of the second rotating shaft (3); the position of the wire outlet (22) corresponds to the wire rack (93).

10. A single twisting machine for armored cables according to claim 1, characterized in that: The connecting frame (51) is provided with a sliding groove (511), a sliding column (512) is provided in the sliding groove (511), the first wire wheel (52) is rotatably mounted on the sliding column (512), and a driving cylinder (54) for driving the first wire wheel (52) to slide is also fixedly mounted on the connecting frame (51), and the gas rod of the driving cylinder (54) is fixedly connected to the other end of the sliding column (512).

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