Wheel-type Rotary Traction Pre-twisting Machine

Abstract

The present invention relates to the technical field of pre-twisting machines, and discloses a wheel-type rotary traction pre-twisting machine, which includes a box body. A main shaft is movably installed inside the box body. The main shaft penetrates through the entire inside of the box body. A hollow shaft is arranged inside the main shaft. A pneumatic brake is installed inside the box body. A second synchronous pulley is sleeved outside the main shaft. The right end of the hollow shaft extends out of the inside of the main shaft, and a third synchronous pulley is sleeved and installed at the right end of the hollow shaft. A first motor and a second motor are installed inside the box body. A rotating frame is arranged at the left end of the main shaft, and a synchronous pulley is sleeved at the left end of the main shaft. In the present invention, by providing a hollow shaft and a second motor, when the second motor is started, the output shaft of the second motor drives the fifth synchronous pulley to drive the second synchronous pulley, thereby driving the entire main shaft and the rotating frame to rotate, so that multiple strands of core wires are twisted together.

Description

Technical Field

[0001] The present invention relates to the technical field of pre-twisting machines, and particularly to a wheel-type rotary traction pre-twisting machine. Background Art

[0002] Before multiple-strand cables enter a stranding machine, they need to be pre-twisted once to share the stranding load of the bunching machine and make the final stranding of the cables round and full. Commonly used pre-twisting machines include three-wheel pre-twisting machines.

[0003] After retrieval, application number CN201220400786.2 discloses a pre-twisting machine, which includes: a frame and a rotating cylinder provided in the frame; the left and right ends of the rotating cylinder are respectively fitted on a pair of support plates of the frame through coaxially distributed left and right hollow rotating shaft bearings; left and right guide wheels are provided in the rotating cylinder, and the central axes of the left and right guide wheels are in a pair of parallel planes and cross-distributed; left and right central guide wheels are respectively provided at the inner ports of the left and right hollow rotating shafts; a wire guiding die is provided between the left and right guide wheels, and three wire guiding holes are distributed on the wire guiding die; during operation, the rotating cylinder rotates, and multiple-strand cables enter the rotating cylinder from the hollow rotating shaft at the left end of the rotating cylinder.

[0004] However, through the exploration of the inventor, it is found that this technical solution still has at least the following defects:

[0005] Traditional three-wheel pre-twisting machines have no wire guiding function and only a rotating function. During the process of forming a lay length by pre-twisting, wire slipping may occur, and 100% pre-twisting cannot be achieved. At the same time, the lay length of the cable during the pre-twisting process cannot be changed by separately controlling the rotational speed of the motor. When the cable contacts the take-off wheel, the cable may slip. For this reason, we propose a wheel-type rotary traction pre-twisting machine. Summary of the Invention

[0006] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a wheel-type rotary traction pre-twisting machine.

[0007] To achieve the above object, the present invention adopts the following technical solution. A wheel-type rotary traction pre-twisting machine includes a box body. A main shaft is movably installed inside the box body, and the main shaft penetrates through the entire inside of the box body. A hollow shaft is provided inside the main shaft. A pneumatic brake is installed inside the box body. A second synchronous pulley is sleeved outside the main shaft. The right end of the hollow shaft extends out of the inside of the main shaft, and a third synchronous pulley is sleeved and installed at the right end of the hollow shaft. A first motor and a second motor are installed inside the box body. A rotating frame is provided at the left end of the main shaft, and a synchronous pulley is sleeved at the left end of the main shaft.

[0008] Preferably, a guide wheel seat is provided on the left side of the box body. A wire outlet wheel and a wire inlet wheel are movably installed on the guide wheel seat, and the guide wheel seat is movably installed inside the rotating frame.

[0009] Preferably, two first bearing seats are installed on the inner bottom surface of the rotating frame, and the two first bearing seats are symmetric with respect to the main shaft.

[0010] Preferably, the bearing parts of the two first bearing seats are sleeved with first synchronous pulleys, and the two first synchronous pulleys move synchronously through a synchronous belt with a synchronous pulley arranged on the main shaft. The front ends of the bearing parts of the two first bearing seats are respectively installed with second bearing seats, and a wire taking wheel and a first wire taking wheel are respectively installed on the two second bearing seats.

[0011] Preferably, a first wire taking wheel shaft is arranged inside both the first wire taking wheel and the wire taking wheel, and the first wire taking wheel and the wire taking wheel are installed on the corresponding second bearing seats through the arranged first wire taking wheel shaft.

[0012] Preferably, an L-shaped support is installed on the outer wall surface of the rotating frame, and a hole is formed in the support.

[0013] Preferably, a wire blocking rod is installed in the support through a fixing bolt, and the position of the wire blocking rod is on the side of the wire taking wheel away from the first wire taking wheel.

[0014] Preferably, a fifth synchronous pulley is sleeved on the output shaft of the second motor, and the fifth synchronous pulley and the second synchronous pulley move synchronously through a synchronous belt.

[0015] Preferably, a fourth synchronous pulley is sleeved on the output shaft of the first motor, and the fourth synchronous pulley and the third synchronous pulley move synchronously through a synchronous belt.

[0016] Preferably, a brake disc is fixed on the output end of the pneumatic brake.

[0017] Beneficial effects

[0018] The present invention provides a wheeled rotary traction pre-twisting machine, which has the following beneficial effects:

[0019] 1. For this wheeled rotary traction pre-twisting machine, by providing a hollow shaft and a second motor, when the output shaft of the second motor rotates, it will drive the fifth synchronous pulley installed on the output shaft to rotate. The fifth synchronous pulley and the second synchronous pulley move synchronously through a synchronous belt. After the second motor is started, it will drive the second synchronous pulley to move through the fifth synchronous pulley. The second synchronous pulley is sleeved on the outer cylindrical wall surface of the main shaft. When the second synchronous pulley moves, it will drive the entire main shaft to rotate together. The core wire passes through the inside of the hollow shaft and extends from the left side of the main shaft. The core wire is passed through the inlet wheel and wound around the wire taking wheel, and then the core wire is continued to be wound around the first wire taking wheel so that the core wire finally comes out from the outlet wheel. Start the second motor, and the output shaft of the second motor drives the fifth synchronous pulley and the second synchronous pulley to rotate synchronously, thereby driving the entire main shaft and the rotating frame to rotate, so as to twist multiple core wires.

[0020] 2. The wheel-type rotary traction pre-twisting machine is provided with a synchronous pulley III, a motor I, and a synchronous pulley IV. When the output shaft of the motor I rotates, it will drive the synchronous pulley IV installed on the output shaft to move. The synchronous pulley IV and the synchronous pulley III perform synchronous movement through a synchronous belt. After the motor I is started, the synchronous pulley IV will drive the synchronous pulley III to rotate. The synchronous pulley III is sleeved on the outer cylindrical wall surface of the main shaft. When the motor I drives the synchronous pulley III to rotate, it will drive the entire hollow shaft to rotate together. The synchronous pulley installed at the left front end of the hollow shaft will move together with the hollow shaft. The hollow shaft is connected to the two synchronous pulleys I through the synchronous belt provided on the synchronous pulley. When the hollow shaft operates, it will drive the take-up wheel I and the take-up wheel to move. The set take-up wheel I and the take-up wheel will pull the core wire forward during the movement, giving the core wire a certain linear velocity. With a fixed linear velocity and a fixed twisting velocity of the core wire, a fixed lay length will be formed.

[0021] 3. The wheel-type rotary traction pre-twisting machine is provided with a guide wheel seat. The inlet wheel and the outlet wheel are movably installed on the guide wheel seat. The guide wheel seat is arranged on the rotary frame. During the operation of the entire device, the guide wheel seat automatically centers on the rotary frame, and the positions of the outlet wheel and the inlet wheel are changed, so as to realize the switching of the lay length in the S / Z direction.

[0022] 4. The wheel-type rotary traction pre-twisting machine is provided with a motor I and a motor II. The operating speeds of the motor I and the motor II can be independently controlled. When the motor I and the motor II are operating, through the synchronous pulleys IV and V installed on their respective output shafts, they can drive the synchronous pulley III and the synchronous pulley II to perform synchronous movement respectively. By separately adjusting the rotation speed of the motor I to control the speed of the synchronous pulley III that moves synchronously with the output shaft of the motor I, the rotation speed of the entire hollow shaft can be controlled, so as to realize changing the linear velocity of the core wire to change the size of the cable lay length.

[0023] 5. The wheel-type rotary traction pre-twisting machine is subjected to rubber coating treatment on the surfaces of the take-up wheel I and the take-up wheel. When the core wire is wound around the take-up wheel I and the take-up wheel, due to the rubber coating on the surfaces of the take-up wheel I and the take-up wheel, the friction force increases when the core wire contacts the surfaces of the take-up wheel I and the take-up wheel, reducing the occurrence of core wire slipping. At the same time, because the surfaces of the take-up wheel I and the take-up wheel after rubber coating treatment are soft, it can play a certain protective effect on the surface of the core wire when contacting the core wire for a long time.

[0024] 6. The wheeled rotary traction pre-twisting machine is provided with a pneumatic brake 14. The output end of the pneumatic brake 14 is connected to the connecting end of the brake disc 15. After the whole device finishes processing the core wire, by starting the pneumatic brake 14, the output end of the starting brake 14 will pull the whole brake disc to closely adhere to the outer surface of the main shaft 13, increasing the contact with the main shaft 13, so that the main shaft 13 during rotation stops rotating, enabling the main shaft 13 to start and stop efficiently during use. When the whole device stops running, the main shaft 13 stops faster, facilitating the extraction of the core wire. Brief Description of the Drawings

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0026] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0027] Figure 1 It is a schematic diagram of the whole of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the guide wheel seat of the present invention.

[0029] Legend Explanation:

[0030] 1. First wire drawing wheel; 2. Wire outlet wheel; 3. Synchronous belt pulley; 4. Wire inlet wheel; 5. Wire drawing wheel; 6. First wire drawing wheel shaft; 7. Wire blocking rod; 8. Support; 9. Second bearing seat; 10. Rotary frame; 11. First synchronous belt pulley; 12. First bearing seat; 13. Main shaft; 14. Pneumatic brake; 15. Brake disc; 16. Hollow shaft; 17. Box body; 18. Second synchronous belt pulley; 19. Third synchronous belt pulley; 20. First motor; 21. Fourth synchronous belt pulley; 22. Second motor; 23. Fifth synchronous belt pulley; 24. Guide wheel seat. Detailed Embodiment

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment: A wheel-type rotary traction pre-twisting machine, as Figure 1 - Figure 2 shown, includes a box body 17. Holes are provided on both inner side wall surfaces of the box body 17. A main shaft 13 is movably installed inside the box body 17. The main shaft 13 runs through the entire inside of the box body 17. The main shaft 13 can rotate inside the box body 17. A hollow shaft 16 is arranged inside the main shaft 13. A pneumatic brake 14 is installed inside the box body 17. A second synchronous pulley 18 is sleeved outside the main shaft 13. The right end of the hollow shaft 16 extends out of the inside of the main shaft 13. A third synchronous pulley 19 is sleeved and installed at the right end of the hollow shaft 16. A first motor 20 and a second motor 22 are installed inside the box body 17. By providing the first motor 20 and the second motor 22, the running speeds of the first motor 20 and the second motor 22 can be independently controlled. When the first motor 20 and the second motor 22 are running, through the fourth synchronous pulley 21 and the fifth synchronous pulley 23 installed on their respective output shafts, they can drive the third synchronous pulley 19 and the second synchronous pulley 18 to move synchronously respectively. By separately adjusting the rotation speed of the first motor 20 to control the speed of the third synchronous pulley 19 that moves synchronously with the output shaft of the first motor 20, the rotation speed of the entire hollow shaft 16 can be controlled, so as to change the linear speed of the core wire to change the size of the cable lay length.

[0033] A rotary frame 10 is arranged at the left end of the main shaft 13. Two bearing seats 12 are installed on the inner bottom surface of the rotary frame 10. The two

[0034] bearing seats 12 are symmetric with each other with respect to the main shaft 13. An L-shaped support 8 is installed on the outer wall surface of the rotary frame 10. A hole is provided in the support 8. A wire blocking rod 7 is installed in the support 8 through a fixing bolt. The position of the wire blocking rod 7 is on the side of the take-off wheel 5 away from the first take-off wheel 1. A synchronous pulley 3 is sleeved at the left end of the main shaft 13.

[0035] A guide wheel seat 24 is arranged on the left side of the box body 17. A wire outlet wheel 2 and a wire inlet wheel 4 are movably installed on the guide wheel seat 24. The guide wheel seat 24 is movably installed inside the rotary frame 10. The wire inlet wheel 4 and the wire outlet wheel 2 are movably installed on the guide wheel seat 24. The guide wheel seat 24 is arranged on the rotary frame 10. During the operation of the entire device, the guide wheel seat 24 automatically centers on the rotary frame 10, and the positions of the wire outlet wheel 2 and the wire inlet wheel 4 are changed, so as to realize the switching of the lay length in the S / Z direction.

[0036] Synchronous belt pulleys one 11 are sleeved on the bearing parts of the two bearing seats one 12, and the two synchronous belt pulleys one 11 move synchronously with the synchronous belt pulley 3 arranged on the main shaft 13 through a synchronous belt. Bearing seats two 9 are installed at the front ends of the bearing parts of the two bearing seats one 12, and a take-up wheel 5 and a take-up wheel one 1 are respectively installed on the two bearing seats two 9.

[0037] Take-up wheel shafts one 6 are arranged inside both the take-up wheel one 1 and the take-up wheel 5. The take-up wheel one 1 and the take-up wheel 5 are installed on the corresponding bearing seats two 9 through the arranged take-up wheel shafts one 6. By applying rubber coating treatment to the surfaces of the take-up wheel one 1 and the take-up wheel 5, when the core wire is wound around the take-up wheel one 1 and the take-up wheel 5, due to the rubber coating on the surfaces of the take-up wheel one 1 and the take-up wheel 5, the frictional force increases when the core wire contacts the surfaces of the take-up wheel one 1 and the take-up wheel 5, reducing the occurrence of the core wire slipping. At the same time, since the surfaces of the take-up wheel one 1 and the take-up wheel 5 after rubber coating treatment are soft, it can play a certain protective effect on the surface of the core wire when contacting the core wire for a long time.

[0038] A synchronous belt pulley five 23 is sleeved on the output shaft of the motor two 22. The synchronous belt pulley five 23 and the synchronous belt pulley two 18 move synchronously through a synchronous belt. When the output shaft of the motor two 22 rotates, it will drive the synchronous belt pulley five 23 installed on the output shaft to rotate. The synchronous belt pulley five 23 and the synchronous belt pulley two 18 move synchronously through a synchronous belt. After the motor two 22 is started, it will drive the synchronous belt pulley two 18 to move through the synchronous belt pulley five 23. The synchronous belt pulley two 18 is sleeved on the outer cylindrical wall surface of the main shaft 13. When the synchronous belt pulley two 18 moves, it will drive the entire main shaft 13 to rotate together. The core wire passes through the inside of the hollow shaft 16 and extends from the left side of the main shaft 13. The core wire is passed through the inlet wheel 4 and wound around the take-up wheel 5, and then continues to be wound around the take-up wheel one 1 so that the core wire finally comes out from the outlet wheel 2. Start the motor two 22. The output shaft of the motor two 22 drives the synchronous belt pulley five 23 and the synchronous belt pulley two 18 to rotate synchronously, thereby driving the entire main shaft 13 and the rotating frame 10 to rotate, so that multiple strands of core wire form a lay length.

[0039] A synchronous pulley four 21 is sleeved on the output shaft of the first motor 20. The synchronous pulley four 21 and the synchronous pulley three 19 perform synchronous motion through a synchronous belt. When the output shaft of the first motor 20 rotates, it will drive the synchronous pulley four 21 installed on the output shaft to move. The synchronous pulley four 21 and the synchronous pulley three 19 perform synchronous motion through the synchronous belt. After the first motor 20 is started, the synchronous pulley four 21 will drive the synchronous pulley three 19 to rotate. The synchronous pulley three 19 is sleeved on the outer cylindrical wall surface of the main shaft 13. When the first motor 20 drives the synchronous pulley three 19 to rotate, it will drive the entire hollow shaft 16 to rotate together. The synchronous pulley 3 installed at the left front end of the hollow shaft 16 will move together with the hollow shaft 16. The hollow shaft 16 is connected to the two synchronous pulleys one 11 through the synchronous belt provided on the synchronous pulley 3. When the hollow shaft 16 operates, it will drive the take-up pulley one 1 and the take-up pulley 5 to move. The provided take-up pulley one 1 and the take-up pulley 5 will pull the core wire forward during the movement, giving the core wire a certain linear velocity. With a fixed linear velocity, when multiple core wires move, the multiple core wires will be stranded and form a fixed lay length.

[0040] The output end of the pneumatic brake 14 is fixed with a brake disc 15, and the brake disc 15 surrounds the outer cylindrical wall surface of the main shaft 13.

[0041] The working principle of the present invention:

[0042] By providing a hollow shaft 16 and a second motor 22, when the output shaft of the second motor 22 rotates, it will drive the synchronous pulley five 23 installed on the output shaft to rotate. The synchronous pulley five 23 and the synchronous pulley two 18 perform synchronous motion through a synchronous belt. After the second motor 22 is started, it will drive the synchronous pulley two 18 to move through the synchronous pulley five 23. The synchronous pulley two 18 is sleeved on the outer cylindrical wall surface of the main shaft 13. When the synchronous pulley two 18 moves, it will drive the entire main shaft 13 to rotate together. The core wire passes through the inside of the hollow shaft 16 and extends from the left side of the main shaft 13. The core wire is passed through the inlet pulley 4 and wound around the take-up pulley 5, and then the core wire is continued to be wound around the take-up pulley one 1 so that the core wire finally comes out from the outlet pulley 2. The second motor 22 is started, and the output shaft of the second motor 22 drives the synchronous pulley five 23 and the synchronous pulley two 18 to rotate synchronously, thereby driving the entire main shaft 13 and the rotating frame 10 to rotate, so that multiple core wires are stranded.

[0043] By providing a synchronous pulley three 19, a motor one 20 and a synchronous pulley four 21, when the output shaft of the motor one 20 rotates, it will drive the synchronous pulley four 21 installed on the output shaft to move. The synchronous pulley four 21 and the synchronous pulley three 19 perform synchronous movement through a synchronous belt. After the motor one 20 starts, the synchronous pulley four 21 will drive the synchronous pulley three 19 to rotate. The synchronous pulley three 19 is sleeved on the outer cylindrical wall surface of the main shaft 13. When the motor one 20 drives the synchronous pulley three 19 to rotate, it will drive the entire hollow shaft 16 to rotate together. The synchronous pulley 3 installed at the left front end of the hollow shaft 16 will move together with the hollow shaft 16. The hollow shaft 16 is connected to the two synchronous pulleys one 11 through the synchronous belt provided on the synchronous pulley 3. When the hollow shaft 16 operates, it will drive the take-up pulley one 1 and the take-up pulley 5 to move. The provided take-up pulley one 1 and take-up pulley 5 will pull the core wire forward during the movement, giving the core wire a certain linear velocity. With a fixed linear velocity and a fixed torsional velocity, the core wire will form a fixed lay length.

[0044] By providing a guide wheel seat 24, the inlet wheel 4 and the outlet wheel 2 are movably installed on the guide wheel seat 24. The guide wheel seat 24 is arranged on the rotating frame 10. During the operation of the entire device, the guide wheel seat 24 automatically centers on the rotating frame 10, changing the positions of the outlet wheel 2 and the inlet wheel 4, thereby realizing the switching of the lay length in the S / Z direction.

[0045] By providing a motor one 20 and a motor two 22, the operating speeds of the motor one 20 and the motor two 22 can be independently controlled. When the motor one 20 and the motor two 22 are operating, through the synchronous pulleys four 21 and the synchronous pulley five 23 installed on their respective output shafts, they can drive the synchronous pulley three 19 and the synchronous pulley two 18 to perform synchronous movement respectively. By separately adjusting the rotational speed of the motor one 20, the speed of the synchronous pulley three 19 that moves synchronously with the output shaft of the motor one 20 is controlled, thereby controlling the rotational speed of the entire hollow shaft 16, and thus realizing changing the linear velocity of the core wire to change the size of the cable lay length.

[0046] By applying rubber coating treatment to the surfaces of the take-up pulley one 1 and the take-up pulley 5, when the core wire is wound around the take-up pulley one 1 and the take-up pulley 5, due to the rubber coating on the surfaces of the take-up pulley one 1 and the take-up pulley 5, the frictional force increases when the core wire contacts the surfaces of the take-up pulley one 1 and the take-up pulley 5, reducing the occurrence of the core wire slipping. At the same time, due to the soft surfaces of the take-up pulley one 1 and the take-up pulley 5 after the rubber coating treatment, it can play a certain protective effect on the surface of the core wire when in contact with the core wire for a long time.

[0047] By providing a pneumatic brake 14, the output end of the pneumatic brake 14 is connected to the connection end of the brake disc 15. After the entire device finishes processing the core wire, by starting the pneumatic brake 14, the output end of the activated brake 14 will pull the entire brake disc tightly against the outer surface of the main shaft 13, increasing the contact with the main shaft 13, so that the main shaft 13 during rotation stops rotating, enabling the main shaft 13 to start and stop efficiently during use. When the entire device stops running, the main shaft 13 stops faster, facilitating the extraction of the core wire.

[0048] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Wheel-type rotary traction pre-twisting machine, including a box body (17), Characterized in that: A main shaft (13) is movably installed inside the box body (17), the main shaft (13) runs through the entire inside of the box body (17), a hollow shaft (16) is arranged inside the main shaft (13), a pneumatic brake (14) is installed inside the box body (17), a second synchronous pulley (18) is sleeved outside the main shaft (13), the right end of the hollow shaft (16) extends out of the inside of the main shaft (13), and a third synchronous pulley (19) is sleeved and installed at the right end of the hollow shaft (16). A first motor (20) and a second motor (22) are installed inside the box body (17). A rotating frame (10) is arranged at the left end of the main shaft (13), and a synchronous pulley (3) is sleeved at the left end of the main shaft (13); A guide wheel seat (24) is arranged on the left side of the box body (17), and the guide wheel seat (24) is arranged inside the rotating frame (10). A wire outlet wheel (2) and a wire inlet wheel (4) are movably installed on the guide wheel seat (24) to change the positions of the wire outlet wheel (2) and the wire inlet wheel (4), so as to realize the switching of the lay direction; A fifth synchronous pulley (23) is sleeved on the output shaft of the second motor (22), and the fifth synchronous pulley (23) and the second synchronous pulley (18) are synchronously moved through a synchronous belt.

2. The wheel-type rotary traction pre-twisting machine according to claim 1, Characterized in that: Two bearing seats one (12) are installed on the inner bottom surface of the rotating frame (10), and the two bearing seats one (12) are symmetrical with respect to the main shaft (13).

3. The wheel-type rotary traction pre-twisting machine according to claim 2, Characterized in that: Synchronous pulleys one (11) are sleeved on the bearing parts of the two bearing seats one (12), and the two synchronous pulleys one (11) are synchronously moved through a synchronous belt with the synchronous pulley (3) arranged on the main shaft (13). Bearing seats two (9) are installed at the front ends of the bearing parts of the two bearing seats one (12), and a wire taking wheel (5) and a first wire taking wheel (1) are respectively installed on the two bearing seats two (9).

4. The wheel-type rotary traction pre-twisting machine according to claim 3, Characterized in that: A first wire taking wheel shaft (6) is arranged inside both the first wire taking wheel (1) and the wire taking wheel (5), and the first wire taking wheel (1) and the wire taking wheel (5) are installed on the corresponding bearing seats two (9) through the arranged first wire taking wheel shaft (6).

5. The wheel-type rotary traction pre-twisting machine according to claim 1, Characterized in that: An L-shaped support (8) is installed on the outer wall surface of the rotating frame (10), and a hole is opened in the support (8).

6. The wheel-type rotary traction pre-twisting machine according to claim 5, Characterized in that: A wire blocking rod (7) is installed in the support (8) through a fixing bolt, and the position of the wire blocking rod (7) is on the side of the wire taking wheel (5) away from the first wire taking wheel (1).

7. The wheel-type rotary traction pre-twisting machine according to claim 1, Characterized in that: A synchronous pulley four (21) is sleeved on the output shaft of the first motor (20), and the synchronous pulley four (21) and the synchronous pulley three (19) are synchronously moved through a synchronous belt.

8. The wheeled rotary traction pre-twisting machine according to claim 1, characterized in that: The output end of the pneumatic brake (14) is fixed with a brake disc (15).

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