Automatic precision winding machine

Abstract

The invention discloses an automatic precision winding and reeling machine. An unwinding transmission mechanism, a length measuring device, a tension detecting device, a constant motion mechanism and a winding transmission mechanism are all installed on a frame structure. The unwinding transmission mechanism can be installed and drive a wire drum to rotate and reel the wire. The winding transmission mechanism can be installed and drive a target roller to rotate and reel the wire reeled off the wire drum. The length measuring device can measure the length of the wire passing through it. The tension detecting device can detect the tension of the wire in the winding process. The length measuring device and the tension detecting device are electrically connected and communicated with a control system respectively. The constant motion mechanism can drive the wire to move axially along the target roller to realize the axial arrangement of the wire along the target roller and the reversal and cross-layer. The control system controls the constant motion mechanism, the unwinding transmission mechanism and the winding transmission mechanism to operate. The invention realizes the fully automatic operation of reeling, saves labor to a great extent, and ensures the consistency of reeling quality.

Description

Technical Field

[0001] The invention relates to textile equipment, in particular to an automatic precision winding and rewinding machine. Background Art

[0002] The precision winding rewinding machine is used to transfer raw materials such as yarn, copper wire, metal filament, chemical fiber filament from the regularly wound reel 1 to the target roller 2. The winding meets the requirements of close arrangement, consistent cross-layer, uniform tension and accurate fixed length. Similar to the cylindrical target roller, it is a conical structure with a slightly larger diameter. The starting section of the winding is fixed on the inner edge of the large diameter side. The first layer is laid flat on the target roller. From the second layer onwards, the two ends of each additional layer are reduced inward by a definable number of turns, and this cycle is repeated until a certain set length is met. The winding process requires that there should be no defects such as bad cross-layers and uneven gaps, and it can be unwound smoothly after winding.

[0003] The prior art originally transferred the wire drum to the target roller by manual intervention or a simple mechanism in a free state. The winding arrangement and cross-layer all relied on manual control or operation. Humans were fully involved in the entire process, which was a huge workload and boring repetitive labor. It also had extremely high requirements on the operators, was extremely inefficient, and the rewinding length was limited. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention provides an automatic precision winding and rewinding machine, which can realize full automation of rewinding, greatly save labor, and ensure the consistency of rewinding quality.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an automatic precision winding and rewinding machine, including a frame structure, an unwinding transmission mechanism, a length measuring device, a tension detection device, a constant motion mechanism, a winding transmission mechanism and a control system, wherein the unwinding transmission mechanism, the length measuring device, the tension detection device, the constant motion mechanism and the winding transmission mechanism are all installed on the frame structure, the unwinding transmission mechanism can be installed and drive the wire drum to rotate and unwind the wire, the winding transmission mechanism can be installed and drive the target roller to rotate to wind the wire withdrawn from the wire drum, the length measuring device can measure the length of the wire passing through it, the tension detection device can detect the tension of the wire during the winding process, the length measuring device and the tension detection device are respectively electrically connected and communicated with the control system, the constant motion mechanism can drive the wire to move axially along the target roller to realize the axial arrangement of the wire along the target roller and the reversal of the cross-layer, and the control system controls the operation of the constant motion mechanism, the unwinding transmission mechanism and the winding transmission mechanism.

[0006] As a further improvement of the present invention, the unwinding transmission mechanism includes a first support base, a first transmission shaft, a first servo motor and a wire drum fixing device, the first support base is fixedly connected to the frame structure, the first servo motor is fixedly mounted on the first support base, the first servo motor power output shaft is fixedly connected to the first transmission shaft, a first bearing is fixedly installed on the first support base, the first transmission shaft is inserted in the bearing hole of the first bearing, the wire drum can be sleeved on the first transmission shaft, and the wire drum fixing device can fixedly connect the wire drum to the first transmission shaft.

[0007] As a further improvement of the present invention, the wire drum fixing device includes a first support arm, a first positioning block and a first locking sleeve. A circle of radially outward-expanding step ring is formed on the first transmission shaft. The first support arm is fixedly sleeved on the outside of the radially outward-expanding step ring of the first transmission shaft. The first positioning block can be fixedly installed on the outside of the circumference of the first support arm and can be adjusted along the radial position of the first support arm. The first locking sleeve can be removably fixedly sleeved on the outside of the first transmission shaft. The axial ends of the wire drum sleeved on the first transmission shaft are tightly clamped between the radially outward-expanding step ring and the first locking sleeve, and the first positioning block can be inserted into the eccentric groove on the end face of one axial end of the wire drum so as to be stopped.

[0008] As a further improvement of the present invention, the winding transmission mechanism includes a second servo motor, a second bearing, a second support base, a second transmission shaft and a target roller fixing device. The second support base is fixedly mounted on the frame structure, the second servo motor is fixedly mounted on the second support base, the second servo motor power output shaft is coaxially fixedly connected with the second transmission shaft, the second transmission shaft passes through the bearing hole of the second bearing, the target roller can be sleeved on the second transmission shaft, and the target roller fixing device can fixedly connect the target roller with the second transmission shaft.

[0009] As a further improvement of the present invention, the target roller fixing device includes a second support arm, a second positioning block, a retaining ring and a second locking sleeve. The retaining ring is fixedly sleeved on the second transmission shaft in an axially adjustable position. The second support arm is fixedly connected to the retaining ring. The positioning block is fixedly installed on the second support arm in a radially adjustable manner along the second transmission shaft, and the second positioning block can be inserted and stopped in an eccentric groove on an axial end face of the target roller. The second locking sleeve is removably fixedly sleeved on the outside of the second transmission shaft, and the axial ends of the target roller sleeved on the second transmission shaft are tightly clamped between the retaining ring and the second locking sleeve.

[0010] As a further improvement of the present invention, the length measuring device includes a first bracket, an incremental encoder and a first V-shaped roller. The first bracket is fixedly installed on the frame structure so that its position can be adjusted. The first V-shaped roller is rotatably installed on the first bracket. The wire is wound around the outer circumferential surface of the first V-shaped roller, and the incremental encoder is coaxially fixed to the first V-shaped roller.

[0011] As a further improvement of the present invention, a line guiding device is also provided, which includes a third bracket and a second V-shaped roller. The third bracket is fixedly mounted on the frame structure so that its position can be adjusted, and the second V-shaped roller is rotatably mounted on the third bracket. After the wire is turned by the second V-shaped roller, it is wrapped around the outer circumferential surface of the first V-shaped roller at a set wrap angle.

[0012] As a further improvement of the present invention, the tension detection device includes a tension detection sensor and a second bracket, the second bracket is fixedly installed on the frame structure with an adjustable position, and the tension detection sensor is fixedly mounted on the bracket.

[0013] As a further improvement of the present invention, the constant motion mechanism includes a transverse slide, a longitudinal slide, a transverse slide, a longitudinal slide, a third servo motor, a fourth servo motor and a guide device. The transverse slide is fixedly installed on the frame structure, the transverse slide can be installed on the transverse slide along the axial direction of the target roller on a horizontal plane, the longitudinal slide is fixedly installed on the transverse slide, and the longitudinal slide can be installed on the longitudinal slide along the radial direction of the target roller. The third servo motor and the fourth servo motor respectively drive the transverse slide and the longitudinal slide to slide through the transmission mechanism, and the control system controls the start and stop of the third servo motor and the fourth servo motor. The guide device includes a guide plate and a porcelain mouth. The guide plate is fixedly installed on the longitudinal slide, and the porcelain mouth is fixedly connected to the guide plate. The porcelain mouth is a U-shaped closed wire guide ceramic, and the wire can be passed through the porcelain mouth.

[0014] As a further improvement of the present invention, an auxiliary device is also provided, which includes a raw yarn detection device, a finished yarn appearance detection device, a human-machine interface, an operating switch button and a control cabinet. The raw yarn detection device can detect raw yarn defects, the finished yarn appearance detection device is installed at the top of the frame structure, the finished yarn appearance detection device can detect the arrangement of winding and forming, the control cabinet is fixedly installed on one side of the frame structure, the control system is arranged in the control cabinet, the human-machine interface and the operating switch button are fixedly installed on the frame structure and are electrically connected and communicated with the control system.

[0015] The beneficial effects of the present invention are as follows: the present invention realizes automatic unwinding of the wire reel into a wire reel through the unwinding transmission mechanism, realizes automatic winding and wire taking-up of the wire through the winding transmission mechanism, and in the process of taking-up the wire is realized by the constant motion mechanism to realize the wire being wound in a tightly arranged axial direction of the target roller, accurately changing the direction across layers when reaching the axial end of the target roller, and ensuring that the wire is always wound tangentially to the radial direction of the horizontal direction of the target roller, and the winding length is accurately determined by the length measuring device, and the wire is kept in a stable tension during the winding process by the tension detecting device. The equipment realizes the fully automated operation of rewinding, saves labor to a great extent, and ensures the consistency of rewinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention;

[0017] Figure 2 It is a left view of the present invention.

[0018] Figure 3 It is a schematic diagram of the unwinding transmission mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the length measuring device of the present invention;

[0020] Figure 5 It is a schematic diagram of a tension detection device of the present invention;

[0021] Figure 6 It is a schematic diagram of the line guiding device of the present invention;

[0022] Figure 7 It is a schematic diagram of the perpetual motion mechanism of the present invention;

[0023] Figure 8 It is a schematic diagram of the winding transmission mechanism of the present invention. DETAILED DESCRIPTION

[0024] Embodiment: An automatic precision winding reel machine comprises a frame structure 3, an unwinding transmission mechanism 4, a length measuring device 5, a tension detection device 6, a constant motion mechanism 8, a winding transmission mechanism 9 and a control system, wherein the unwinding transmission mechanism 4, the length measuring device 5, the tension detection device 6, the constant motion mechanism 8 and the winding transmission mechanism 9 are all installed on the frame structure 3, the unwinding transmission mechanism 4 can be installed and drive the wire drum 1 to rotate and unwind the wire, the winding transmission mechanism 9 can be installed and drive the target roller 2 to rotate to wind the wire withdrawn from the wire drum 1, the length measuring device 5 can measure the length of the wire passing through it, the tension detection device 6 can detect the tension of the wire during the winding process, the length measuring device 5 and the tension detection device 6 are respectively electrically connected and communicated with the control system, the constant motion mechanism 8 can drive the wire to move axially along the target roller 2 to realize the axial arrangement of the wire along the target roller 2 and the reversal of the cross-layer, and the control system controls the operation of the constant motion mechanism 8, the unwinding transmission mechanism 4 and the winding transmission mechanism 9.

[0025] The frame structure 3 is used as a supporting foundation, and other mechanical mechanisms or devices are installed on the frame structure 3. The frame structure 3 is built with aluminum profiles, which has a firm and reliable structure and is quick and convenient to install. The groove structure of the aluminum profile is convenient for the installation and adjustment of various mechanisms.

[0026] The unwinding transmission mechanism 4 is used to fix the wire drum 1 and drive the material to actively exit the wire drum 1. The length measuring device 5 is used to accurately determine the length of the winding. The tension detection device 6 is used to detect and feedback the tension during the winding process. After receiving the signal, the control system fine-tunes the rotation speed of the target roller 2 and the wire drum 1 to keep the winding tension fluctuating within an allowable small range. The constant motion mechanism 8 is used to guide the material to be closely arranged along the axial direction of the target roller 2, accurately change direction and cross layers when reaching the axial end of the target roller 2, and ensure that it is always wound on the target roller 2 in a radially tangential manner to the horizontal direction of the target roller 2. The winding transmission mechanism 9 is used to fix the target roller 2 and actively drive the target roller 2 to wind and rewind. The control system coordinates the various components through programming and electrical component control to cooperate with each other to complete the winding work.

[0027] The unwinding transmission mechanism 4 includes a first support base 13, a first transmission shaft 14, a first servo motor 11 and a wire drum fixing device 15. The first support base 13 is fixedly connected to the frame structure 3, the first servo motor 11 is fixedly mounted on the first support base 13, the power output shaft of the first servo motor 11 is fixedly connected to the first transmission shaft 14, the first bearing 12 is fixedly installed on the first support base 13, the first transmission shaft 14 is inserted in the bearing hole of the first bearing 12, the wire drum 1 can be sleeved on the first transmission shaft 14, and the wire drum fixing device 15 can fix the wire drum 1 to the first transmission shaft 14. The first servo motor 11 drives the wire drum to rotate in the opposite direction of the winding direction of the wire wound thereon through the first transmission shaft 14 to realize unwinding. The control system controls the unwinding speed by controlling the rotation speed of the first servo motor 11, thereby ensuring that the tension of the wire is uniform and stable during the rewinding process.

[0028] The wire drum fixing device 15 includes a first support arm 16, a first positioning block 17 and a first locking sleeve 18. A circle of radially outward-expanding step ring is formed on the first transmission shaft 14. The first support arm 16 is fixedly sleeved on the outer side of the radially outward-expanding step ring of the first transmission shaft 14. The first positioning block 17 can be fixedly installed on the outer side of the circumference of the first support arm 16 and can be adjusted along the radial position of the first support arm 16. The first locking sleeve 18 can be removably fixedly sleeved on the outer side of the first transmission shaft 14. The axial ends of the wire drum 1 sleeved on the first transmission shaft 14 are tightly clamped between the radially outward-expanding step ring and the first locking sleeve 18, and the first positioning block 17 can be inserted into the eccentric groove on the end face of one axial end of the wire drum 1 so as to be stopped. A connecting piece is fixedly provided on the outer side of the circumference of the first support arm 16, and a long strip mounting hole extending radially along the support arm is provided on the connecting piece. A connecting piece is slidably provided in the long strip mounting hole, and the connecting piece clamps and fixes the first positioning block 17 with the connecting piece, thereby realizing the radial movement of the first positioning block 17 along the first transmission shaft 14 to the wire drum 1. The axial inner side of the wire drum 1 is positioned by the step of the first transmission shaft 14, and the outer side is positioned, locked or loosened by screwing in and out of the locking sleeve. The locking sleeve and the first transmission shaft are connected by threads to realize screwing in and out positioning. This structure is convenient and quick to operate for taking and putting the wire drum 1. Here, the locking sleeve drives its own four balls to tighten or loosen with the first transmission shaft (optical axis) by screwing or loosening its own threads. The threads are screwed manually without the need for a wrench tool, so it is convenient to take and put. This part is a common structure, and those skilled in the art can easily obtain its specific structure and can be purchased on the market.

[0029] The winding transmission mechanism 9 includes a second servo motor 35, a second bearing 36, a second support base 37, a second transmission shaft 38 and a target roller fixing device 39. The second support base 37 is fixedly mounted on the frame structure 3, the second servo motor 35 is fixedly mounted on the second support base 37, the power output shaft of the second servo motor 35 is coaxially fixedly connected with the second transmission shaft 38, the second transmission shaft 38 runs through the bearing hole of the second bearing 36, the target roller 2 can be sleeved on the second transmission shaft 38, and the target roller fixing device 39 can fix the target roller 2 with the second transmission shaft 38. The second servo motor 35 provides power to drive the second transmission shaft 38 to rotate, thereby driving the target roller 2 to rotate, and unifying the wire reel into a wire reel 1 to wind the wire material withdrawn from the upper and lower wires.

[0030] The target roller fixing device 39 includes a second arm 40, a second positioning block 41, a retaining ring 42 and a second locking sleeve 43. The retaining ring 42 is fixedly sleeved on the second transmission shaft 38 in an axially adjustable position. The second arm 40 is fixedly connected to the retaining ring 42. The positioning block is fixedly installed on the second arm 40 in an adjustable manner along the radial direction of the second transmission shaft 38. The second positioning block 41 is inserted into the eccentric groove on the axial end face of the target roller 2 in a stoppered manner. The second locking sleeve 43 is fixedly sleeved on the outer side of the second transmission shaft 38 in a detachable manner. The axial ends of the target roller 2 sleeved on the second transmission shaft 38 are tightly clamped between the retaining ring 42 and the second locking sleeve 43. By finely adjusting the position of the second positioning block 41, it is ensured that when the target roller 2 is inserted into the second transmission shaft 38, the second positioning block 41 is just inserted into the eccentric groove of the target roller 2 without relative rotation. The target roller 2 is positioned axially inwardly by the step surface of the retaining ring 42, and the outer side is positioned, locked or loosened by screwing in and out of the locking sleeve, so that the target roller 2 can be taken in and out conveniently and quickly.

[0031] The length measuring device 5 includes a first bracket 19, an incremental encoder 20 and a first V-shaped roller 21. The first bracket 19 is fixedly mounted on the frame structure 3 so that its position can be adjusted. The first V-shaped roller 21 is rotatably mounted on the first bracket 19. The wire is wound around the outer circumferential surface of the first V-shaped roller 21. The incremental encoder 20 is coaxially fixedly connected to the first V-shaped roller 21. With the help of the control system, a control method of recording and correcting the length encoder and the servo motor transmission is adopted to achieve accurate length recording. The frame structure 3 is provided with a slide rail along the axial direction of the vertical unwinding transmission mechanism 4. The first bracket 19 can slide along the slide rail. The first bracket 19 can be fixedly positioned with the slide rail at any position through a connector. The first V-shaped roller 21 is preferably made of nylon, and its groove bottom diameter is 60mm to 70mm.

[0032] A line guiding device 7 is also provided, which includes a third bracket 24 and a second V-shaped roller 25. The third bracket 24 is fixedly mounted on the frame structure 3 so that its position can be adjusted, and the second V-shaped roller 25 is rotatably mounted on the third bracket 24. After the wire is turned by the second V-shaped roller 25, it is wound around the outer circumferential surface of the first V-shaped roller 21 at a set wrap angle.

[0033] The line guide device 7 ensures that the raw materials run along a reasonable route. The functions of the line guide device 7 are:

[0034] (1) Assist the raw material to smoothly come off the wire drum 1 and wrap it around the length measuring V-shaped roller with a large wrap angle to ensure the accuracy of the length measurement;

[0035] (ii) When the raw material passes through the tension detection device 6, it is always perpendicular to the three pulley axes of the tension detection sensor 22 and is located in the middle of the three pulley axes, which is convenient for tension detection.

[0036] The tension detection device 6 includes a tension detection sensor 22 and a second bracket 23. The second bracket 23 is fixedly mounted on the frame structure 3 and its position can be adjusted. The tension detection sensor 22 is fixed on the bracket. The tension detection sensor 22 adopts a three-pulley sensor, which has high accuracy, stable performance and easy installation. When the raw material passes through, the tension change during operation is detected according to the pressure fluctuation on the pulley and output to the control system.

[0037] The constant motion mechanism 8 includes a transverse slide 26, a longitudinal slide 28, a transverse slide 31, a longitudinal slide 32, a third servo motor, a fourth servo motor and a guide device. The transverse slide 26 is fixedly mounted on the frame structure 3, the transverse slide 31 can be installed on the transverse slide 26 along the axial direction of the target roller 2 on a horizontal plane, the longitudinal slide 28 is fixedly mounted on the transverse slide 31, and the longitudinal slide 32 can be installed on the longitudinal slide 28 along the radial direction of the target roller 2. The third servo motor and the fourth servo motor drive the transverse slide 31 and the longitudinal slide 32 to slide respectively through the transmission mechanism, and the control system controls the start and stop of the third servo motor and the fourth servo motor. The guide device includes a guide plate 33 and a porcelain mouth 34. The guide plate 33 is fixedly mounted on the longitudinal slide 32, and the porcelain mouth 34 is fixedly connected to the guide plate 33. The porcelain mouth 34 is a U-shaped closed wire guide ceramic, and the wire can be passed through the porcelain mouth 34.

[0038] The transverse slide 26 is fixedly mounted on the frame structure 3 through the transverse slide 26 mounting plate 27. The transverse slide 26 is driven by a third servo motor to drive the slide to move along the axial direction of the target roller 2. The longitudinal slide 28 is fixedly connected to the slide of the transverse slide 26 through the longitudinal slide 28 mounting plate 29. The longitudinal slide 28 is driven by a fourth servo motor to drive the slide to move along the radial direction of the target roller 2. The guide device restrains the wire through the porcelain mouth 34 of the U-shaped closed wire guide ceramic, and the raw wire will not run out of the porcelain mouth 34. Under the control of the electrical system, the raw wire is tightly arranged and wound around the target roller 2 in a consistent pattern across layers through the porcelain mouth 34 on the guide device under the coordinated movement of the transverse slide 26 and the longitudinal slide 28.

[0039] An auxiliary device 10 is also provided, which includes a raw yarn detection device 44, a finished yarn appearance detection device 45, a human-machine interface 46, an operating switch button 47 and a control cabinet 48. The raw yarn detection device 44 can detect raw yarn defects, and the finished yarn appearance detection device 45 is installed at the top of the frame structure 3. The finished yarn appearance detection device 45 can detect the arrangement of winding and forming. The control cabinet 48 is fixedly installed on one side of the frame structure 3, and the control system is arranged in the control cabinet 48. The human-machine interface 46 and the operating switch button 47 are fixedly installed on the frame structure 3 and are electrically connected and communicated with the control system.

[0040] The raw yarn detection device 44 and the finished yarn appearance detection device 45 can be imaging devices, such as cameras, which detect the appearance of the wire by imaging it. The human-machine interface 46 facilitates the input and reading of data, and the operating switch button 47 can facilitate the start and stop of the equipment, the adjustment of the retracting and winding speed, and the emergency stop of accidents, etc., which is convenient for manual control of the equipment.

Claims

1. An automatic precision winding and rewinding machine, characterized in that: The invention comprises a frame structure (3), an unwinding transmission mechanism (4), a length measuring device (5), a tension detection device (6), a constant motion mechanism (8), a winding transmission mechanism (9) and a control system. The unwinding transmission mechanism, the length measuring device, the tension detection device, the constant motion mechanism and the winding transmission mechanism are all installed on the frame structure. The unwinding transmission mechanism can be installed and drive the wire drum (1) to rotate and unwind the wire. The winding transmission mechanism can be installed and drive the target roller (2) to rotate and wind the wire unwound from the wire drum. The length measuring device can measure the length of the wire passing through it. The tension detection device can detect the tension of the wire during the winding process. The length measuring device and the tension detection device are respectively electrically connected and communicated with the control system. The constant motion mechanism can drive the wire to move along the axial direction of the target roller to achieve the arrangement of the wire along the axial direction of the target roller and the reversal of the cross-layer. The control system controls the operation of the constant motion mechanism, the unwinding transmission mechanism and the winding transmission mechanism. The length measuring device comprises a first bracket (19), an incremental encoder (20) and a first V-shaped roller (21). The first bracket can be positioned The adjustment is fixedly installed on the frame structure, the first V-shaped roller is rotatably installed on the first bracket, the wire is wound around the outer surface of the circumference of the first V-shaped roller, the incremental encoder is coaxially fixedly connected to the first V-shaped roller, the constant motion mechanism includes a transverse slide (26), a longitudinal slide (28), a transverse slide (31), a longitudinal slide (32), a third servo motor, a fourth servo motor and a guide device, the transverse slide is fixedly installed on the frame structure, the transverse slide can be installed on the transverse slide along the axial direction of the target roller on a horizontal plane, the longitudinal slide is fixedly installed on the transverse slide, the longitudinal slide can be installed on the longitudinal slide along the radial direction of the target roller, the third servo motor and the fourth servo motor drive the transverse slide and the longitudinal slide to slide respectively through the transmission mechanism, the control system controls the start and stop of the third servo motor and the fourth servo motor, the guide device includes a guide plate (33) and a porcelain mouth (34), the guide plate is fixedly installed on the longitudinal slide, the porcelain mouth is fixedly connected to the guide plate, the porcelain mouth is a U-shaped closed wire guide ceramic, and the wire can be inserted into the porcelain mouth.

2. The automatic precision winding and rewinding machine according to claim 1 is characterized in that: The unwinding transmission mechanism comprises a first support base (13), a first transmission shaft (14), a first servo motor (11) and a wire drum fixing device (15), wherein the first support base is fixedly connected to the frame structure, the first servo motor is fixedly mounted on the first support base, the first servo motor power output shaft is fixedly connected to the first transmission shaft, a first bearing (12) is fixedly mounted on the first support base, the first transmission shaft is inserted into a bearing hole of the first bearing, the wire drum can be sleeved on the first transmission shaft, and the wire drum fixing device can fixedly connect the wire drum to the first transmission shaft.

3. The automatic precision winding and rewinding machine according to claim 2 is characterized in that: The wire drum fixing device comprises a first support arm (16), a first positioning block (17) and a first locking sleeve (18); a circle of radially outwardly expanding step ring is formed on the first transmission shaft; the first support arm is fixedly sleeved on the outer side of the radially outwardly expanding step ring of the first transmission shaft; the first positioning block can be fixedly installed on the outer side of the circumference of the first support arm and can be adjusted along the radial position of the first support arm; the first locking sleeve can be detachably fixedly sleeved on the outer side of the first transmission shaft; the axial ends of the wire drum sleeved on the first transmission shaft are tightly clamped between the radially outwardly expanding step ring and the first locking sleeve; and the first positioning block can be inserted into an eccentric groove on the end face of one axial end of the wire drum so as to be stopperable.

4. The automatic precision winding and rewinding machine according to claim 1 is characterized in that: The winding transmission mechanism comprises a second servo motor (35), a second bearing (36), a second support base (37), a second transmission shaft (38) and a target roller fixing device (39), wherein the second support base is fixedly mounted on the frame structure, the second servo motor is fixedly mounted on the second support base, the second servo motor power output shaft is coaxially fixedly connected with the second transmission shaft, the second transmission shaft passes through the bearing hole of the second bearing, the target roller can be sleeved on the second transmission shaft, and the target roller fixing device can fix the target roller to the second transmission shaft.

5. The automatic precision winding and rewinding machine according to claim 4 is characterized in that: The target roller fixing device comprises a second support arm (40), a second positioning block (41), a retaining ring (42) and a second locking sleeve (43); the retaining ring is fixedly sleeved on the second transmission shaft in an axially adjustable manner; the second support arm is fixedly connected to the retaining ring; the positioning block is fixedly mounted on the second support arm in an adjustable manner along the radial direction of the second transmission shaft; the second positioning block is inserted into an eccentric groove on an axial end face of the target roller in a stop manner; the second locking sleeve is fixedly sleeved on the outer side of the second transmission shaft in a detachable manner; and the axial ends of the target roller sleeved on the second transmission shaft are tightly clamped between the retaining ring and the second locking sleeve.

6. The automatic precision winding and rewinding machine according to claim 1, characterized in that: A line guide device (7) is also provided, the line guide device comprising a third bracket (24) and a second V-shaped roller (25), the third bracket being fixedly mounted on the frame structure in an adjustable manner, the second V-shaped roller being rotatably mounted on the third bracket, and the wire being turned by the second V-shaped roller and then wound around the outer circumferential surface of the first V-shaped roller at a set wrap angle.

7. The automatic precision winding and rewinding machine according to claim 1, characterized in that: The tension detection device comprises a tension detection sensor (22) and a second bracket (23); the second bracket is fixedly mounted on the frame structure in an adjustable position; and the tension detection sensor is fixedly mounted on the bracket.

8. The automatic precision winding and rewinding machine according to claim 1, characterized in that: An auxiliary device (10) is also provided, which includes a raw yarn detection device (44), a finished yarn appearance detection device (45), a human-machine interface (46), an operation switch button (47) and a control cabinet (48). The raw yarn detection device can detect raw yarn defects, the finished yarn appearance detection device is installed at the top of the frame structure, the finished yarn appearance detection device can detect the arrangement of winding and forming, the control cabinet is fixedly installed on one side of the frame structure, the control system is arranged in the control cabinet, and the human-machine interface and the operation switch button are fixedly installed on the frame structure and are electrically connected and communicated with the control system.

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