Wire and cable stranding machine

Abstract

The invention discloses a wire and cable stranding machine which comprises a base, a rotating seat is rotatably connected to the top of one side of the base, the rotating seat is driven by a driving mechanism to rotate, a support is fixedly connected to the top of the rotating seat, supporting shafts are symmetrically and fixedly connected to the two sides of the support, and a rotating disc is rotatably connected to the supporting shafts. When the stranding machine works, the electric mechanism drives the main shaft to rotate, the main shaft drives the first wire reel and the second wire reel to rotate, and the second wire reel is inserted into the slot of the transmission wheel through the insertion rod, so that the second wire reel drives the corresponding turntable to rotate through the transmission wheel, the material rollers on the turntable discharge materials, and a cable is stranded; through the arrangement of the two groups of rotating discs, when one group of rotating discs works, the material rollers on the other group of rotating discs can be replaced, the stranding machine can continuously work while the material rollers are replaced, long-time shutdown of the stranding machine is avoided, and the overall working efficiency of the stranding machine is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire twisting machines, in particular to a wire and cable twisting machine. Background Art

[0002] A wire stranding machine is a kind of mechanical equipment that can be widely used for stranding various soft / hard conductor wires. It can twist multiple single conductors into one strand to meet the process requirements of the wire. Therefore, a wire and cable stranding machine is needed in the cable production process.

[0003] Existing wire and cable stranding machines, such as the wire and cable processing stranding machine proposed in Publication No.: CN118507159A, include a base and a cage, the cage is mounted on the top of the base through meshing gears, the meshing gear is connected to a motor transmission fixed to one side of the base through a toothed belt transmission, and the output end of the motor is connected to a sub-control mechanism; a top seat, the top seat is arranged between the cage and the base, the top seat is moved closer to or farther from the base through two sets of telescopic frames arranged below the top seat, and the base is rotatably arranged on the top of the base; a fixing mechanism, the fixing mechanism is arranged at a position close to the meshing gear at the top of the base, and the fixing mechanism clamps and fixes the meshing gear through a sub-control mechanism. The present invention facilitates the automatic loading and unloading operations of the wire drum, and has a compact and simple structure, which can protect the use of the motor.

[0004] The existing wire and cable twisting machine has a compact and simple structure and can protect the use of the motor. However, it is found in use that when the twisting machine is working, the material roller needs to rotate with the cage. When the material roller is discharged and needs to be replaced, the twisting machine stops working. The twisting machine can only continue to work after all the material rollers are replaced, resulting in a long downtime of the twisting machine, which makes the overall working efficiency of the twisting machine low and inconvenient to use. Therefore, we propose a wire and cable twisting machine to solve the problem raised. Summary of the invention

[0005] The object of the present invention is to provide a wire and cable stranding machine, which achieves the purpose of replacing the material rollers on one group of turntables while the other group of turntables is working by setting up two groups of turntables. The stranding machine can continue to work while the material rollers are replaced, thus avoiding long-term shutdown of the stranding machine and effectively improving the overall working efficiency of the stranding machine.

[0006] To achieve the above object, the present invention provides the following technical solution: a wire and cable stranding machine, comprising a base, a top of one side of the base is rotatably connected to a rotating seat, and the rotating seat is driven by a driving mechanism to rotate, wherein:

[0007] The top of the base is provided with a bracket, and the two sides of the bracket are symmetrically fixedly connected to the support shaft, and a turntable is rotatably connected to the support shaft, and a material roller is symmetrically installed on the side of the turntable away from the bracket, and the material roller is installed on the turntable through a quick disassembly and assembly mechanism. A sliding seat is slidably arranged on the top of the other side of the base for sliding movement, and the top of the base corresponding to the sliding seat is provided with a second slide groove, and the bottom of the sliding seat corresponding to the second slide groove is fixedly connected to the second sliding block, and a screw rod threadedly connected to the second sliding block is rotatably connected in the second slide groove. A second motor is installed at one end of the sliding seat corresponding to the base, and the shaft end of the second motor is fixedly connected to the screw rod, and the middle part of the top of the sliding seat is fixedly connected to the support frame, and the support frame is rotatably connected to the main shaft;

[0008] The main shaft is provided with first wire holes distributed in a circular shape and at equal intervals, the main shaft is fixedly connected to a first wire disk at one end away from the rotating seat, a second wire disk is penetrated at a position corresponding to the first wire hole, the main shaft is fixedly connected to a second wire disk at one end close to the rotating seat, a third wire hole is penetrated at a side of the second wire disk corresponding to the first wire hole, the second wire disk is symmetrically rotatably connected to first guide wheels at both sides corresponding to the third wire hole, the second wire disk is rotatably connected to a second guide wheel at the position corresponding to the first wire hole, a transmission wheel is fixedly connected to a middle part of a side of the turntable away from the bracket, slots are equidistantly provided on a side of the transmission wheel away from the turntable, a plug rod is fixedly connected to a side corresponding to the slot of the second wire disk, and the main shaft is driven to rotate by an electric mechanism.

[0009] Preferably, the driving mechanism includes a transmission groove, a transmission groove is opened inside the rotating seat corresponding to the base, a worm wheel is fixedly connected to the shaft end of the rotating seat corresponding to the transmission groove, a worm is rotatably connected to the inside of the transmission groove close to the worm wheel, a first motor is installed on the outer end of the worm corresponding to the base, and the shaft end of the first motor is fixedly connected to the worm.

[0010] Preferably, the installation position of the material roller corresponds to the positions of the first wire hole, the second wire hole, and the third wire hole.

[0011] Preferably, the quick disassembly and assembly mechanism includes a mounting seat, a mounting seat is symmetrically arranged at the position of the turntable corresponding to the material roller, and limiting frames are symmetrically fixedly connected to both sides of the mounting seat, and a rotating shaft groove is opened on the inner side of the limiting frame, and a rotating shaft is fixedly connected to one end of the material roller corresponding to the rotating shaft groove, and ball grooves are opened equidistantly on the inner wall of the rotating shaft groove, and balls are rotatably connected in the ball grooves, and a first sliding groove is opened on the side of the turntable close to the mounting seat, and a first sliding block is fixedly connected to the side of the mounting seat corresponding to the first sliding groove, and a screw rod is rotatably connected in the first sliding groove, and the end of the screw rod passes through the interior of the turntable and extends to the outside.

[0012] Preferably, the ball is a sphere, and the outer diameter of the ball matches the inner diameter of the ball groove.

[0013] Preferably, the screw rod is provided with two sections of opposite external threads, and the screw rod is threadedly connected to the first sliding blocks on both sides respectively through the two sections of opposite external threads.

[0014] Preferably, the slot opening is trumpet-shaped, and the inner diameter of the slot matches the outer diameter of the insertion rod.

[0015] Preferably, the electric mechanism includes a third motor, the third motor is installed on one side of the support frame, the main shaft is fixedly connected to the outer side of the third motor with a first reversing gear, and the shaft end of the third motor is fixedly connected to the first reversing gear with a second reversing gear.

[0016] Preferably, the first reversing gear is annular, and the first reversing gear is meshed with the second reversing gear.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, when the stranding machine is working, the electric mechanism drives the main shaft to rotate, and the main shaft drives the first wire drum and the second wire drum to rotate. The second wire drum is inserted into the slot of the transmission wheel through the insertion rod, so that the second wire drum drives the corresponding turntable to rotate through the transmission wheel, so that the material roller on the turntable discharges the material and the cable is stranded. By setting two groups of turntables, the material rollers on one group of turntables can be replaced when the other group of turntables is working. The stranding machine can continue to work while the material rollers are replaced, avoiding long-term shutdown of the stranding machine, and effectively improving the overall working efficiency of the stranding machine.

[0019] The adjusting screw is then rotated in the opposite direction so that the limiting frames are brought closer together and the rotating shaft is restricted in the rotating shaft groove, thereby completing the installation of the material roller. The material roller is replaced by the quick disassembly and assembly mechanism of the material roller, and the working efficiency of the material roller is effectively improved. When the material roller rotates through the rotating shaft, the sliding friction between the rotating shaft and the rotating shaft groove is replaced by the rolling friction between the rotating shaft and the ball, thereby effectively reducing the friction force received by the material roller during rotation, so that the material roller can be discharged by rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from a side view;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the turntable of the present invention;

[0024] Figure 5 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0025] Figure 6 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at B in the middle;

[0026] Figure 7 For the present invention Figure 4 Schematic diagram of the partial enlarged structure at point C in the middle.

[0027] In the figure: 1, base; 2, rotating seat; 3, transmission groove; 4, worm gear; 5, worm; 6, first motor; 7, bracket; 8, support shaft; 9, turntable; 10, material roller; 11, mounting seat; 12, limit frame; 13, shaft groove; 14, shaft; 15, ball groove; 16, ball; 17, first slide groove; 18, first slider; 19, adjusting screw; 20, sliding seat; 21, second slide groove; 22, second slider; 23, lead screw; 24, second motor; 25, support frame; 26, main shaft; 27, first wire hole; 28, first wire reel; 29, second wire hole; 30, second wire reel; 31, third wire hole; 32, first guide wheel; 33, second guide wheel; 34, transmission wheel; 35, slot; 36, plug rod; 37, third motor; 38, first reversing gear; 39, second reversing gear. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example:

[0030] See also Figures 1 to 7 The present invention provides a technical solution: a wire and cable stranding machine, comprising a base 1, a rotating base 2 is rotatably connected to the top of one side of the base 1, and the rotating base 2 is driven by a driving mechanism to rotate, wherein:

[0031] A bracket 7 is fixedly connected to the top of the rotating seat 2, and support shafts 8 are symmetrically fixedly connected to both sides of the bracket 7. A turntable 9 is rotatably connected to the support shaft 8. A material roller 10 is symmetrically installed on the side of the turntable 9 away from the bracket 7. The material roller 10 is installed on the turntable 9 through a quick disassembly mechanism. A sliding seat 20 is slidably arranged on the top of the other side of the base 1. A second slide groove 21 is opened on the top of the base 1 corresponding to the sliding seat 20. A second slider 22 is fixedly connected to the bottom of the sliding seat 20 corresponding to the second slide groove 21. A screw rod 23 threadedly connected to the second slider 22 is rotatably connected in the second slide groove 21. A second motor 24 is installed at one end of the base 1 corresponding to the sliding seat 20. The shaft end of the second motor 24 is fixedly connected to the screw rod 23. A support frame 25 is fixedly connected to the middle of the top of the sliding seat 20, and a main shaft 26 is rotatably connected to the support frame 25.

[0032] The main shaft 26 is provided with first wire holes 27 distributed in an annular shape and at equal intervals. A first wire reel 28 is fixedly connected to the end of the main shaft 26 away from the rotating seat 2. A second wire hole 29 is penetrated through the position of the first wire hole 27 of the first wire reel 28. A second wire reel 30 is fixedly connected to the end of the main shaft 26 close to the rotating seat 2. A third wire hole 31 is penetrated through the side of the second wire reel 30 corresponding to the first wire hole 27. The second wire reel 30 is symmetrically rotatably connected to the first guide wheels 32 on both sides corresponding to the third wire hole 31. The second wire reel 30 is rotatably connected to the position of the first wire hole 27. A transmission wheel 34 is fixedly connected to the middle part of the side of the rotating disk 9 away from the bracket 7. Slots 35 are equidistantly provided on the side of the transmission wheel 34 away from the rotating disk 9. A plugging rod 36 is fixedly connected to the side of the second wire reel 30 corresponding to the slot 35. The main shaft 26 is driven to rotate by an electric mechanism.

[0033] When the stranding machine is working, the electric mechanism drives the main shaft 26 to rotate, and the main shaft 26 drives the first wire drum 28 and the second wire drum 30 to rotate. The second wire drum 30 is inserted into the slot 35 of the transmission wheel 34 through the insertion rod 36, so that the second wire drum 30 drives the corresponding turntable 9 to rotate through the transmission wheel 34, so that the material roller 10 on the turntable 9 discharges the material and the cable is stranded. By setting up two groups of turntables 9, the material roller 10 on the other group of turntables 9 can be replaced while one group of turntables 9 is working. The stranding machine can continue to work while the material roller 10 is replaced, thereby avoiding long-term shutdown of the stranding machine and effectively improving the overall working efficiency of the stranding machine.

[0034] See also Figures 1 to 7The driving mechanism includes a transmission groove 3, a transmission groove 3 is opened inside the base 1 corresponding to the rotating base 2, a worm wheel 4 is fixedly connected to the shaft end of the rotating base 2 corresponding to the transmission groove 3, a worm 5 is rotatably connected to the inside of the transmission groove 3 near the worm wheel 4, a first motor 6 is installed at the outer end of the base 1 corresponding to the worm 5, and the shaft end of the first motor 6 is fixedly connected to the worm 5. The installation position of the material roller 10 corresponds to the positions of the first wire hole 27, the second wire hole 29, and the third wire hole 31. When the turntable 9 needs to be converted, the second motor 24 drives the screw rod 2 3 is rotated, so that the lead screw 23 drives the sliding seat 20 to move away from the rotating seat 2 through the second slider 22, so that the second wire drum 30 drives the insertion rod 36 to move out of the slot 35, and the worm 5 is driven to rotate by the first motor 6. The worm 5 drives the rotating seat 2 to rotate 180 degrees through the engagement with the worm wheel 4, and the position of the turntable 9 is exchanged. Then, the second motor 24 drives the lead screw 23 to rotate in the opposite direction, so that the sliding seat 20 moves toward the rotating seat 2, and the second wire drum 30 drives the insertion rod 36 to be inserted into the inside of the slot 35, so that the stranding machine continues to work.

[0035] See also Figures 1 to 7The quick disassembly and assembly mechanism includes a mounting seat 11, and the mounting seat 11 is symmetrically arranged at the position of the turntable 9 corresponding to the material roller 10. The mounting seat 11 is symmetrically fixedly connected to the limiting frame 12 on both sides. The inner side of the limiting frame 12 is provided with a rotating shaft groove 13. The material roller 10 is fixedly connected to a rotating shaft 14 at one end corresponding to the rotating shaft groove 13. The inner wall of the rotating shaft groove 13 is equidistantly provided with ball grooves 15. A ball 16 is rotatably connected in the ball groove 15. A first sliding groove 17 is provided on the side of the turntable 9 close to the mounting seat 11. The mounting seat 11 A first slider 18 is fixedly connected to one side of the corresponding first slide groove 17, and a screw rod 23 is rotatably connected in the first slide groove 17. The end of the screw rod 23 passes through the interior of the turntable 9 and extends to the outside. The ball 16 is a sphere, and the outer diameter of the ball 16 coincides with the inner diameter of the ball groove 15. The screw rod 23 is provided with two opposite external threads, and the screw rod 23 is threadedly connected to the first sliders 18 on both sides through the two opposite external threads. When the material roller 10 on the stopped turntable 9 is replaced, the turntable 9 The corresponding adjusting screw 19 is driven, and the adjusting screw 19 drives the first sliders 18 on both sides to move in opposite directions through two opposite external threads, so that the mounting seats 11 on both sides of the material roller 10 are separated from each other, and the mounting seats 11 drive the limit frames 12 to move away from each other, and the rotating shaft groove 13 is opened, so that the material roller 10 drives the rotating shaft 14 to move out of the rotating shaft groove 13, and the material roller 10 to be installed is mounted in the rotating shaft groove 13 through the rotating shaft 14, and the adjusting screw 19 is rotated in the opposite direction to make the limit frames 12 approach each other, and the rotating shaft 14 is moved. The installation of the material roller 10 can be completed by being confined in the rotating shaft groove 13. Through the quick disassembly and assembly mechanism of the material roller 10, the material roller 10 can be quickly replaced, which effectively improves the working efficiency of the material roller 10. When the material roller 10 rotates through the rotating shaft 14, the rotating shaft 14 replaces the sliding friction between the rotating shaft 14 and the rotating shaft groove 13 through the rolling friction formed by the ball 16, which effectively reduces the friction force applied to the material roller 10 during rotation, so that the material roller 10 can discharge the material by rotating.

[0036] See also Figures 1 to 7 The opening of the slot 35 is trumpet-shaped, and the inner diameter of the slot 35 coincides with the outer diameter of the insertion rod 36. The electric mechanism includes a third motor 37. The third motor 37 is installed on one side of the support frame 25. The main shaft 26 is fixedly connected to the outer side of the third motor 37 with a first reversing gear 38, and the shaft end of the third motor 37 corresponding to the first reversing gear 38 is fixedly connected to the second reversing gear 39. The first reversing gear 38 is annular, and the first reversing gear 38 is meshed with the second reversing gear 39.

[0037] Working principle: When the wire and cable stranding machine is working, the third motor 37 drives the second reversing gear 39 to rotate, and the second reversing gear 39 drives the main shaft 26 to rotate by meshing with the first reversing gear 38, and the main shaft 26 drives the first wire drum 28 and the second wire drum 30 to rotate. The second wire drum 30 is inserted into the slot 35 of the transmission wheel 34 through the insertion rod 36, so that the second wire drum 30 drives the corresponding turntable 9 to rotate through the transmission wheel 34, so that the material roller 10 on the turntable 9 discharges the material and the cable is stranded. By setting up two groups of turntables 9, when one group of turntables 9 is working, the material rollers on the other group of turntables 9 can be 10 is replaced. When the turntable 9 needs to be converted, the second motor 24 drives the screw rod 23 to rotate, so that the screw rod 23 drives the sliding seat 20 to move away from the rotating seat 2 through the second slider 22, so that the second wire drum 30 drives the insertion rod 36 to move out of the slot 35, and the first motor 6 drives the worm 5 to rotate. The worm 5 drives the rotating seat 2 to rotate 180° through the engagement with the worm wheel 4, and the position of the turntable 9 is exchanged. Then, the second motor 24 drives the screw rod 23 to rotate in the opposite direction, so that the sliding seat 20 moves toward the rotating seat 2, and the second wire drum 30 drives the insertion rod 36 to be inserted into the slot 35, so that the stranding machine continues to work;

[0038] When replacing the material roller 10 on the stopped turntable 9, the corresponding adjusting screw 19 is rotated, and the adjusting screw 19 drives the first sliders 18 on both sides to move in opposite directions through the two opposite external threads, so that the mounting seats 11 on both sides of the material roller 10 are separated from each other, and the mounting seats 11 drive the limit frames 12 to separate from each other, and the shaft groove 13 is opened, so that the material roller 10 drives the shaft 14 to move out of the shaft groove 13, and the material roller 10 to be installed is mounted in the shaft groove 13 through the shaft 14, and the adjusting screw 19 is rotated in the opposite direction to allow the limit frames 12 to move away from each other. 2 are brought close to each other, and the rotating shaft 14 is restricted in the rotating shaft groove 13, so that the installation of the material roller 10 can be completed. Through the quick disassembly and assembly mechanism of the material roller 10, the material roller 10 can be quickly replaced, which effectively improves the working efficiency of the material roller 10, and when the material roller 10 rotates through the rotating shaft 14, the rotating shaft 14 replaces the sliding friction between the rotating shaft 14 and the rotating shaft groove 13 through the rolling friction formed by the ball 16, which effectively reduces the friction force received by the material roller 10 when it rotates, so that the material roller 10 can discharge the material by rotating.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire and cable stranding machine, comprising a base (1), characterized in that: A rotating seat (2) is rotatably connected to the top of one side of the base (1), and the rotating seat (2) is driven by a driving mechanism to rotate, wherein: The top of the rotating seat (2) is fixedly connected with a bracket (7), and the two sides of the bracket (7) are symmetrically fixedly connected with support shafts (8), and a turntable (9) is rotatably connected to the support shaft (8), and a material roller (10) is symmetrically installed on the side of the turntable (9) away from the bracket (7), and the material roller (10) is installed on the turntable (9) through a quick disassembly mechanism. A sliding seat (20) is slidably arranged on the top of the other side of the base (1), and a second slide groove (21) is opened on the top of the base (1) corresponding to the sliding seat (20). The sliding seat (20) is fixedly connected with a second sliding block (22) at the bottom corresponding to the second sliding groove (21), and a screw rod (23) threadedly connected to the second sliding block (22) is rotatably connected in the second sliding groove (21); a second motor (24) is installed at one end of the base (1) corresponding to the sliding seat (20), and the shaft end of the second motor (24) is fixedly connected to the screw rod (23); a support frame (25) is fixedly connected to the middle of the top end of the sliding seat (20), and a main shaft (26) is rotatably connected to the support frame (25); The main shaft (26) is provided with first wire holes (27) distributed in an annular manner and at equal intervals; the main shaft (26) is fixedly connected to an end away from the rotating seat (2) with a first wire disc (28); a second wire hole (29) is passed through the position of the first wire disc (28) corresponding to the first wire hole (27); the main shaft (26) is fixedly connected to an end close to the rotating seat (2) with a second wire disc (30); a third wire hole (31) is passed through the side of the second wire disc (30) corresponding to the first wire hole (27); the second wire disc (30) is connected to the side of the second wire disc (30) corresponding to the first wire hole (27); The two sides of the three wire holes (31) are symmetrically connected to first guide wheels (32) for rotation; the second wire reel (30) is connected to a second guide wheel (33) for rotation corresponding to the position of the first wire hole (27); a transmission wheel (34) is fixedly connected to the middle of the side of the rotating disk (9) away from the bracket (7); slots (35) are equidistantly provided on the side of the transmission wheel (34) away from the rotating disk (9); a plug rod (36) is fixedly connected to the side of the second wire reel (30) corresponding to the slot (35); and the main shaft (26) is driven to rotate by an electric mechanism.

2. The wire and cable stranding machine according to claim 1, characterized in that: The driving mechanism comprises a transmission groove (3), the transmission groove (3) is provided inside the base (1) corresponding to the rotating base (2), a worm wheel (4) is fixedly connected to the shaft end of the rotating base (2) corresponding to the transmission groove (3), a worm (5) is rotatably connected to the inside of the transmission groove (3) close to the worm wheel (4), a first motor (6) is installed at the outer end of the base (1) corresponding to the worm (5), and the shaft end of the first motor (6) is fixedly connected to the worm (5).

3. The wire and cable stranding machine according to claim 1, characterized in that: The installation position of the material roller (10) corresponds to the positions of the first wire hole (27), the second wire hole (29), and the third wire hole (31).

4. The wire and cable stranding machine according to claim 1, characterized in that: The quick disassembly and assembly mechanism comprises a mounting seat (11), the mounting seat (11) is symmetrically arranged at the position of the rotating disk (9) corresponding to the material roller (10), the mounting seat (11) is symmetrically fixedly connected to the limiting frame (12) on both sides, the inner side of the limiting frame (12) is provided with a rotating shaft groove (13), the material roller (10) is fixedly connected to one end of the rotating shaft groove (13) corresponding to the rotating shaft groove (13), the inner wall of the rotating shaft groove (13) is equidistantly provided with ball grooves (15), the ball grooves (15) are rotatably connected to the balls (16), the rotating disk (9) is provided with a first sliding groove (17) on the side close to the mounting seat (11), the mounting seat (11) is fixedly connected to the side corresponding to the first sliding groove (17), the first sliding groove (17) is rotatably connected to a screw rod (23), the end of the screw rod (23) passes through the interior of the rotating disk (9) and extends to the outside.

5. The wire and cable stranding machine according to claim 4, characterized in that: The ball (16) is a sphere, and the outer diameter of the ball (16) matches the inner diameter of the ball groove (15).

6. The wire and cable stranding machine according to claim 4, characterized in that: The screw rod (23) is provided with two sections of opposite external threads, and the screw rod (23) is threadedly connected to the first sliding blocks (18) on both sides respectively through the two sections of opposite external threads.

7. The wire and cable stranding machine according to claim 1, characterized in that: The opening of the slot (35) is trumpet-shaped, and the inner diameter of the slot (35) matches the outer diameter of the insertion rod (36).

8. The wire and cable stranding machine according to claim 1, characterized in that: The electric mechanism comprises a third motor (37), the third motor (37) is mounted on one side of the support frame (25), the main shaft (26) is fixedly connected to the outer side of the third motor (37) with a first reversing gear (38), and the shaft end of the third motor (37) is fixedly connected to the first reversing gear (38) with a second reversing gear (39).

9. The wire and cable stranding machine according to claim 1, characterized in that: The first reversing gear (38) is annular, and the first reversing gear (38) is meshed with the second reversing gear (39).

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