A napping winding device

Abstract

This invention relates to the field of textile equipment, and more particularly to a compact and efficient napping and winding device suitable for use in circular knitting machines. The napping and winding device includes a base, a support, a control system, a winding roller, a first napping roller, a second napping roller, a first drive assembly, a second drive assembly, a third drive assembly, and a fourth drive assembly. The support has a support column, which is rotatably mounted on the base. The third drive assembly is connected to the support column to enable rotation of the support. The winding roller is rotatably mounted on the support. The fourth drive assembly is connected to the winding roller. The central axis of the winding roller is perpendicular to the central axis of the support column. The first and second napping rollers are rotatably mounted on the support and are located above the winding roller. The central axes of the first and second napping rollers are parallel to the central axis of the winding roller. The first drive assembly is connected to the first napping roller, and the second drive assembly is connected to the second napping roller.

Description

Technical Field

[0001] This invention relates to the field of textile equipment, and more particularly to a napping and winding device. Background Technology

[0002] Traditional napping of fabric involves: first, weaving the fabric using a rotary loom or other textile equipment; then, winding the fabric using a system within the equipment; finally, transferring it to a napping machine; and then unwinding, napping, and rewinding the fabric. Nailing is a mechanical process that creates a napped surface on fabric. The napping machine is the main piece of machinery used in napping. Its operation involves abrasive grains densely arranged on the surface of the napping roller, which are sharp, pointed, and blade-shaped, varying in size. During napping, these abrasive grains come into close contact with the fabric. As the abrasive roller rotates at high speed, each grain acts like a cutting tool, pulling out and cutting the fibers in the yarn. Repeated friction on the fabric surface creates the napped surface.

[0003] Existing napping machine structures, such as the napping machine for foldable fabric disclosed in Chinese Patent Application No. 202010277781.4, include a napping processing box with a side door and a base plate disposed at the bottom of the napping processing box. Inside the napping processing box, near the side, are unwinding rollers for winding the fabric. Inside the napping processing box are a napping mechanism and two guide rollers. The napping mechanism includes two napping fixing seats and two napping rollers respectively disposed on the napping fixing seats. The two guide rollers are disposed away from the unwinding area within the napping processing box. On one side of the roller, a support frame is also provided on the base plate, located on one side of the napping treatment box. The support frame is equipped with a drive assembly for moving the fabric and a folding mechanism. The drive assembly includes two drive rollers mounted on the support frame. These two drive rollers are driven to rotate by a drive motor mounted on the support frame, thus moving the fabric. The folding assembly includes a horizontal mounting bar that is laterally mounted on the support frame and slides thereon, and a power unit mounted on the side wall of the napping treatment box that drives the horizontal mounting bar to reciprocate. Two guide rollers are mounted on the horizontal mounting bar. The two napping rollers can nap both sides of the fabric. Guided by the guide rollers, the fabric moves through the drive assembly. The ends of the fabric pass through the two guide rollers, which reciprocate laterally under the action of the power unit. This allows the napped fabric to be neatly folded inside the folding box under the guidance of the two guide rollers, facilitating collection and enabling double-sided napping of the fabric.

[0004] Traditional napping finishing processes require one unwinding and two rewinding steps, and involve transferring the woven fabric, resulting in redundant steps and reduced processing efficiency. The aforementioned napping machine uses an unwinding roller to unwind the woven fabric, and then guides it through two guide rollers to napp and finish it. This structure makes the napping machine production line longer, while the circular knitting machine has limited space for the rewinding system, making it impossible to combine with the circular knitting machine to optimize the process.

[0005] Therefore, through years of production and research, the applicant has proposed a napping and winding device that can be applied to large disc machines to realize the integrated process of weaving, napping and finishing and winding, thereby optimizing the process. Summary of the Invention

[0006] Therefore, in view of the above problems, the present invention provides a grinding and winding device that is applicable to large circular knitting machines, has a compact structure, and has high production efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A napping and winding device includes a base, a support, a control system, a winding roller, a first napping roller, a second napping roller, a first drive assembly, a second drive assembly, a third drive assembly, and a fourth drive assembly. The support has a support column rotatably mounted on the base. The third drive assembly is connected to the support column to enable rotation of the support. The winding roller is rotatably mounted on the support. The fourth drive assembly is connected to the winding roller. The central axis of the winding roller is perpendicular to the central axis of the support column. The first and second napping rollers are rotatably mounted on the support and distributed above the winding roller. The central axes of the first and second napping rollers are parallel to the central axis of the winding roller. The first drive assembly is connected to the first napping roller, and the second drive assembly is connected to the second napping roller. The control system includes a controller, and the first, second, third, and fourth drive assemblies are electrically connected to the controller.

[0009] The lateral direction is defined as extending along the axial direction of the take-up roller, and the longitudinal direction is defined as extending perpendicular to the lateral direction on the same horizontal plane. The support includes a support column, a base plate, two fixed seats, two movable seats, a shaft, two swing arms, two bearing seats, and an adjustment assembly. The upper end of the support column is vertically mounted on the lower surface of the base plate via bearings. The two fixed seats are fixed at both ends of the base plate in the lateral direction. Each fixed seat has a high support portion and a low support portion, which are distributed along the longitudinal direction. The axial ends of the take-up roller are respectively mounted on the low support portions of the two fixed seats via bearing seats. The first abrasive roller has its axial ends rotatably mounted on the high support of two fixed seats via bearings. The intermediate shaft is rotatably mounted on the base plate, and its central axis is parallel to the central axis of the take-up roller. Two movable seats are fixed at both axial ends of the intermediate shaft and are distributed on one longitudinal side of the two fixed seats. The second abrasive roller has its axial ends rotatably mounted on the two movable seats via bearings. One end of each of the two swing arms is fixed at a distance from the axial middle of the intermediate shaft. The adjustment assembly is located between the free end of the swing arm and the base plate and is used to adjust the position of the second abrasive roller.

[0010] The adjustment assembly includes an adjustment seat on the base plate, a drive cylinder with one end hinged to the adjustment seat, a connecting rod trussing on the free ends of the two swing arms, and a connecting frame with one end hinged to the middle of the connecting rod. The other end of the connecting frame is hinged to the adjustment seat, and the other end of the drive cylinder is hinged to the middle of the connecting frame.

[0011] The connecting frame includes a first connecting rod with one end hinged to a connecting rod, a first rotating shaft and a second rotating shaft coaxially distributed and rotatably mounted on an adjusting seat, a curved arm fixed to one end of the first rotating shaft and the second rotating shaft close to each other, and a second connecting rod hinged to the free end of the curved arm. The central axis of the second connecting rod is perpendicular to the central axis of the first connecting rod. The other end of the first connecting rod is hinged to the middle of the second connecting rod. The other end of the driving cylinder is hinged to the middle of the second connecting rod. When the distance between the second connecting rod and the intermediate shaft is at its minimum, the connecting frame forms a self-locking mechanism.

[0012] Furthermore, the low support portion is provided with an inclined through groove, which is inclined along the direction from the second grinding roller to the first grinding roller. The two bearing seats are respectively located in the through grooves on the two low support portions, and lifting cylinders are respectively provided between the two bearing seats and the base plate.

[0013] Furthermore, guide grooves are provided on both sides of the through groove and along its length, and a slider that cooperates with the guide groove is provided on the bearing seat.

[0014] Furthermore, the third drive assembly includes a drive motor, a drive pulley on the output shaft of the drive motor, a driven pulley on the support column, and a transmission belt wound around the drive pulley and the driven pulley.

[0015] Furthermore, a buffer assembly is provided between the upper end of the support column and the base plate. The buffer assembly includes a buffer seat fixed to the lower surface of the base plate and a buffer cylinder provided on the buffer seat. The upper part of the support column is embedded in the buffer cylinder. The lower end of the buffer cylinder is provided with a first locking block. The outer surface of the support column is provided with a second locking block. A torsion spring is provided between the first locking block and the second locking block. A buffer frame and a through hole are provided in the middle of the outer surface of the buffer cylinder. A wear-resistant block is embedded in the through hole. A threaded rod is threadedly connected to the buffer frame. A pressure plate is provided at the inner end of the threaded rod. A buffer spring is provided between the pressure plate and the wear-resistant block.

[0016] By adopting the aforementioned technical solution, the beneficial effects of the present invention are as follows: This napping and winding device drives the support to rotate via the third drive component, thereby cooperating with the rotation of the fabric on the circular knitting machine. This allows the fabric woven by the circular knitting machine to be wound up by the winding roller. The front side of the fabric abuts against the first napping roller, and the back side abuts against the second napping roller. The front and back sides of the fabric abut against the first and second napping rollers respectively, achieving napping of the front and back sides of the fabric. This structure, through the napping structure of the winding roller of the circular knitting machine and the first and second napping rollers, and through… The third drive assembly drives the bracket for mounting the take-up roller, the first napping roller, and the second napping roller to rotate, while the fourth drive assembly drives the take-up roller to rotate. Simultaneously, through the friction between the fabric and the first or second napping roller, the tension of the fabric remains stable during the conveying and winding process. Compared to previous structural designs, the use of guide rollers can be eliminated. As a result, the napping and winding device has a compact structure and can be used on large circular knitting machines to realize the integration of weaving, napping, and winding processes into one device, thereby optimizing the process and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the buffer component in an embodiment of the present invention;

[0019] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the first and second abrasive rollers in the separated state in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the first and second abrasive rollers in the bonding state in an embodiment of the present invention;

[0022] Figure 6This is a top view of the connecting frame in an embodiment of the present invention;

[0023] Figure 7 This is a front view structural diagram of the support component in an embodiment of the present invention;

[0024] Figure 8 This is a top view of the support component in an embodiment of the present invention;

[0025] Figure 9 This is a circuit module diagram of an embodiment of the present invention. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0027] The embodiments of the present invention are as follows:

[0028] refer to Figure 1 and Figure 9 As shown, a napping and winding device is mounted on a large disc machine. The device includes a base 1, a support 2, a control system 3, a winding roller 4, a first napping roller 5, a second napping roller 6, a first drive assembly 7, a second drive assembly 8, a third drive assembly 9, and a fourth drive assembly 10. The support 2 has a support column 21, which is rotatably mounted on the base 1. The third drive assembly 9 is connected to the support column 21 to achieve rotation of the support 2. The winding roller 4... The first abrasive roller 5 and the second abrasive roller 6 are rotatably mounted on the support 2 and connected to the take-up roller 4. The central axis of the take-up roller 4 is perpendicular to the central axis of the support column 21. The first abrasive roller 5 and the second abrasive roller 6 are rotatably mounted on the support 2 and are distributed on the upper side of the take-up roller 4. The central axis of the first abrasive roller 5 and the central axis of the second abrasive roller 6 are parallel to the central axis of the take-up roller 4. The first drive assembly 7 is connected to the first abrasive roller 5 and the second drive assembly 8 is connected to the second abrasive roller 6.

[0029] This napping and winding device drives the support 2 to rotate via the third drive assembly 9, thereby cooperating with the rotation of the fabric on the circular knitting machine. The fabric woven by the circular knitting machine is wound up by the take-up roller 4. The front side of the fabric abuts against the first napping roller 5, and the back side abuts against the second napping roller 6. The front and back sides of the fabric abut against the first and second napping rollers respectively, achieving napping finishing on both sides of the fabric. This structure, through the napping finishing structure of the take-up roller 4 of the circular knitting machine with the first and second napping rollers 5 and 6, and driven by the third drive assembly 9, achieves napping finishing on both sides of the fabric. The bracket for mounting the take-up roller 4, the first napping roller 5, and the second napping roller 6 rotates, and the fourth drive assembly 10 drives the take-up roller 4 to rotate. At the same time, through the friction between the fabric and the first napping roller 5 or the second napping roller 6, the tension of the fabric during the conveying and winding process is kept stable. Compared with the previous structural design, the use of guide rollers can be eliminated. As a result, the napping and winding device has a compact structure and can be used on large circular knitting machines to realize the integration of weaving, napping, and winding processes into one equipment, thereby optimizing the process and improving production efficiency.

[0030] refer to Figure 4 and Figure 5 As shown, the axial direction of the take-up roller 4 is defined as the transverse direction, and the direction perpendicular to the transverse direction and located on the same horizontal plane is defined as the longitudinal direction. The support 2 includes a support column 21, a base plate 22, two fixed seats 23, two movable seats 24, a shaft 25, two swing arms 26, two bearing seats 27, and an adjustment assembly 28. The upper end of the support column 21 is vertically mounted on the lower surface of the base plate 22 via bearings. The two fixed seats 23 are fixed at both ends of the transverse direction of the base plate 22. Each fixed seat 23 has a high support portion 231 and a low support portion 232, which are distributed along the longitudinal direction. The axial ends of the take-up roller 4 are respectively mounted on the two fixed seats 23 via bearing seats 27. On the low support portion 232, the axial ends of the first abrasive roller 5 are rotatably mounted on the high support portions 231 of the two fixed seats 23 via bearings. The intermediate shaft 25 is rotatably mounted on the base plate 22. The central axis of the intermediate shaft 25 is parallel to the central axis of the take-up roller 4. The two movable seats 24 are fixed on the axial ends of the intermediate shaft 25 and distributed on one longitudinal side of the two fixed seats 23. The axial ends of the second abrasive roller 6 are rotatably mounted on the two movable seats 24 via bearings. One end of the two swing arms 26 is fixed at a distance from the axial middle of the intermediate shaft 25. The adjustment component 28 is located between the free end of the swing arm 26 and the base plate 22 and is used to adjust the position of the second abrasive roller 6.

[0031] Adjusting component 28 adjusts the swing angle of swing arm 26, causing intermediate shaft 25 to rotate, thereby causing movable seats 24 at both ends of intermediate shaft 25 to swing, which in turn causes the second napping roller 6 to swing around intermediate shaft 25 as the central axis, thereby adjusting the position of the second napping roller 6. In use, by adjusting the contact and separation of the first napping roller 5 and the second napping roller 6, single-sided or double-sided napping of the fabric can be achieved. When the first napping roller 5 and the second napping roller 6 are separated, the bracket 2 is driven to rotate by the third drive component 9, so that the front side of the fabric is in contact with the first napping roller 5 or the back side of the fabric is in contact with the second napping roller 6, thereby achieving single-sided napping of the front or back side of the fabric. When the first napping roller 5 and the second napping roller 6 are in contact, the fabric passes through the gap between the first napping roller 5 and the second napping roller 6, thereby achieving synchronous double-sided napping of the fabric.

[0032] The adjustment assembly 28 includes an adjustment seat 281 mounted on a base plate 22, a drive cylinder 282 with one end hinged to the adjustment seat 281, a connecting rod 283 trussed on the free ends of two swing arms 26, and a connecting frame 284 with one end hinged to the middle of the connecting rod 283. The other end of the connecting frame 284 is hinged to the adjustment seat 281, and the other end of the drive cylinder 282 is hinged to the middle of the connecting frame 284.

[0033] refer to Figure 6 As shown, the connecting frame 284 includes a first connecting rod 101 with one end hinged to the connecting rod 283, a first rotating shaft 102 and a second rotating shaft 103 coaxially distributed and rotatably mounted on the adjusting seat 281, a curved arm 104 fixed to one end of the first rotating shaft 102 and the second rotating shaft 103 close to each other, and a second connecting rod 105 hinged to the free end of the curved arm 104. The central axis of the second connecting rod 105 is perpendicular to the central axis of the first connecting rod 101. The other end of the first connecting rod 101 is hinged to the middle of the second connecting rod 105. The other end of the driving cylinder 282 is hinged to the middle of the second connecting rod 105. When the distance between the second connecting rod 105 and the intermediate shaft 25 is at its minimum, the connecting frame forms a self-locking mechanism.

[0034] During adjustment, the second connecting rod 105 is driven to rotate along the swing direction of the crank arm 104 by the drive cylinder 282, thereby driving the first connecting rod 101 hinged to the second connecting rod 105 to move, which in turn causes the connecting rod 283 to rotate along the swing direction of the swing arm 104, causing the intermediate shaft 25 to rotate. When the distance between the second connecting rod 105 and the intermediate shaft 25 is at its minimum, the line connecting the two hinge points on the crank arm 104 coincides with the line connecting the two hinge points on the swing arm 26, causing the connecting frame 284 to form a self-locking mechanism. That is, when the first grinding roller 5 and the second grinding roller 6 separate, the connecting frame 284... 84 forms a self-locking mechanism, thereby locking the second grinding roller 6, saving energy of the drive cylinder 282, and ensuring structural stability. When the distance between the second connecting rod 105 and the intermediate shaft 25 is at its maximum, the line connecting the two hinge points on the crank arm 104 and the line connecting the two hinge points on the swing arm 26 forms an acute angle. That is, when the first grinding roller 5 and the second grinding roller 6 are in contact, the torque formed by the gravity of the second grinding roller 6 is relatively small, which means the force acting on the drive cylinder is smaller. This reduces the energy of the drive cylinder and achieves energy saving and environmental protection effects.

[0035] refer to Figure 3 As shown, the low support 232 is provided with an inclined through groove 11. The through groove 11 is inclined along the direction from the second grinding roller 6 to the first grinding roller 5. The two bearing seats 27 are respectively provided in the through grooves 11 on the two low support 232. The two bearing seats 27 and the base plate 22 are respectively provided with lifting cylinders 12.

[0036] The through groove 11 has guide grooves 13 on both sides and along its length, and the bearing seat 27 has a slider 14 that cooperates with the guide grooves 13.

[0037] The lifting cylinder 12 drives the bearing seat 27 to slide along the through groove 11, so that when the winding roller 4 is finished winding, it is convenient to pull the shaft of the winding roller 4, so that the rolled fabric can be taken out and the efficiency of use can be improved. In addition, the through groove 11 is inclined along the direction of the second abrasive roller 6 towards the first abrasive roller 5, so that when the winding diameter of the fabric gradually increases, the distance between it and the first abrasive roller 5 can be maintained, which is convenient for taking out the fabric.

[0038] The third drive assembly 9 includes a drive motor 91, a drive pulley 92 on the output shaft of the drive motor 91, a driven pulley 93 on the support column 21, and a transmission belt 94 wound around the drive pulley 92 and the driven pulley 93.

[0039] A buffer assembly 15 is provided between the upper end of the support column 21 and the base plate 22. The buffer assembly 15 includes a buffer seat 151 fixed on the lower surface of the base plate 22 and a buffer cylinder 152 provided on the buffer seat 151. The upper part of the support column 21 is embedded in the buffer cylinder 152. The lower end of the buffer cylinder 152 is provided with a first locking block 153. The outer surface of the support column 21 is provided with a second locking block 154. A torsion spring 155 is provided between the first locking block 153 and the second locking block 154. A buffer frame 156 and a through hole 157 are provided in the middle of the outer surface of the buffer cylinder 152. A wear-resistant block 158 is embedded in the through hole 157. A threaded rod 159 is threadedly connected to the buffer frame 156. A pressure plate 160 is provided at the inner end of the threaded rod 159. A buffer spring 161 is provided between the pressure plate 160 and the wear-resistant block 158.

[0040] When the fabric is conveyed with a deviation, the forces acting on the two ends of the winding roller 4 are different, which in turn causes the base plate 22 to rotate. The torsion spring 155 can correct the deviation of the base plate 22. At the same time, the friction between the wear-resistant block 158 and the side of the support column 21 can be adjusted by adjusting the friction of the wear-resistant block 158 through the threaded rod 159, so that the rotation torque of the base plate 22 can be adjusted. This allows different types of fabrics to maintain the winding tension while correcting deviation, thus improving the applicability.

[0041] refer to Figure 7 and Figure 8 As shown, a support assembly 20 is provided on the base plate 22 and below the take-up roller. The support assembly 20 includes a first support roller 201, a second support roller 202, a third support roller 203, a fifth drive assembly 206, and a sixth drive assembly 207. The first support roller 201 and the second support roller 202 are coaxially and rotatably mounted on the base plate 22. The fifth drive assembly 206 and the sixth drive assembly 207 are respectively connected to the first support roller 201 and the second support roller 202. The third support roller 203 is rotatably mounted on the base plate 22 and is arranged parallel to the first support roller 201. The take-up roller 4 is distributed between the first support roller 201 and the third support roller 203.

[0042] The first support roller 201, the second support roller 202, and the third support roller 203 support the rolled fabric. The fifth drive assembly 206 and the sixth drive assembly 207 are connected to the first support roller 201 and the second support roller 202, respectively. They cooperate with the take-up roller 4 to clamp the rolled fabric. On the one hand, this reduces the load on the take-up roller 4, and on the other hand, it assists in clamping and winding. It also provides traction, thereby improving the winding quality of the fabric. By adjusting the drive speed of the first drive assembly 7 and the second drive assembly 8, a speed difference is created between the first support roller 201 and the second support roller 202. This causes a change in the tension of the fabric at both ends of the take-up roller, which in turn drives the support to rotate, thus achieving the winding and correction function of the fabric.

[0043] The first drive component 7, the second drive component 8, the fourth drive component 10, the fifth drive component 206 and the sixth drive component 207 are all servo motors.

[0044] The control system 3 includes a controller 31, an angle sensor 32 mounted on a base plate 22, a first photoelectric sensor 33 and a second photoelectric sensor 34 mounted on both sides of the fabric in the transverse direction, and a timer 35. The angle sensor 32, the first photoelectric sensor 33, the second photoelectric sensor 34 and the timer 35 are electrically connected to the input terminal of the controller 31. The first drive assembly 7, the second drive assembly 8, the third drive assembly 9, the fourth drive assembly 10, the fifth drive assembly 206, the sixth drive assembly 207, the lifting cylinder 12 and the drive cylinder 282 are electrically connected to the output terminal of the controller 31.

[0045] The control method of the control system 3 is:

[0046] 1) The deflection angle A of the base plate 22 is checked by the angle sensor 32, and the deviation of the fabric is detected by the first photoelectric sensor 33 and the second photoelectric sensor 34. When 5°≥A≥-5°, the direction of the deviation is determined by the first photoelectric sensor 33 or the second photoelectric sensor 34. At the same time, when the first photoelectric sensor 33 or the second photoelectric sensor 34 detects the fabric deviation, the timer 35 keeps time. When the timer 35 counts less than 6 seconds, the fifth drive component 206 or the sixth drive component 207 does not operate, and the base plate 22 is corrected by the torsion spring 155.

[0047] 2) When 5°≥A ≥-5°, the deviation direction is determined by the first photoelectric sensor 33 or the second photoelectric sensor 34. At the same time, when the first photoelectric sensor 33 or the second photoelectric sensor 34 detects the fabric deviation, the timer 35 keeps time. When the timer 35 counts for more than 6 seconds, the fifth drive component 206 or the sixth drive component 207 is controlled to operate, so that the first support roller 201 and the second support roller 202 form a speed difference. This causes the clamping tension of the fabric at both ends of the winding roller 4 to change, thereby achieving the correction of the base plate.

[0048] 3) When A < -5° or A > 5°, the deviation direction is determined by the first photoelectric sensor 33 or the second photoelectric sensor 34. The fifth drive component 206 or the sixth drive component 207 is controlled to make the first support roller 201 and the second support roller 202 form a speed difference, thereby changing the clamping tension of the fabric at both ends of the winding roller 4 to achieve the correction of the base plate.

[0049] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A napping and winding device, characterized in that: The napping and winding device includes a base, a support, a control system, a winding roller, a first napping roller, a second napping roller, a first drive assembly, a second drive assembly, a third drive assembly, and a fourth drive assembly. The support has a support column, which is rotatably mounted on the base. The third drive assembly is connected to the support column to enable rotation of the support. The winding roller is rotatably mounted on the support. The fourth drive assembly is connected to the winding roller. The central axis of the winding roller is perpendicular to the central axis of the support column. The first and second napping rollers are rotatably mounted on the support and distributed above the winding roller. The central axes of the first and second napping rollers are parallel to the central axis of the winding roller. The first drive assembly is connected to the first napping roller, and the second drive assembly is connected to the second napping roller. The control system includes a controller, and the first, second, third, and fourth drive assemblies are electrically connected to the controller. The lateral direction is defined as extending along the axial direction of the take-up roller, and the longitudinal direction is defined as extending perpendicular to the lateral direction on the same horizontal plane. The support includes a support column, a base plate, two fixed seats, two movable seats, a shaft, two swing arms, two bearing seats, and an adjustment assembly. The upper end of the support column is vertically mounted on the lower surface of the base plate via bearings. The two fixed seats are fixed at both ends of the base plate in the lateral direction. Each fixed seat has a high support portion and a low support portion, which are distributed along the longitudinal direction. The axial ends of the take-up roller are respectively mounted on the low support portions of the two fixed seats via bearing seats. The first abrasive roller has its axial ends rotatably mounted on the high support of two fixed seats via bearings. The intermediate shaft is rotatably mounted on the base plate, and its central axis is parallel to the central axis of the take-up roller. Two movable seats are fixed at both axial ends of the intermediate shaft and are distributed on one longitudinal side of the two fixed seats. The second abrasive roller has its axial ends rotatably mounted on the two movable seats via bearings. One end of each of the two swing arms is fixed at a distance from the axial middle of the intermediate shaft. The adjustment assembly is located between the free end of the swing arm and the base plate and is used to adjust the position of the second abrasive roller. The adjustment assembly includes an adjustment seat on the base plate, a drive cylinder with one end hinged to the adjustment seat, a connecting rod trussing on the free ends of the two swing arms, and a connecting frame with one end hinged to the middle of the connecting rod. The other end of the connecting frame is hinged to the adjustment seat, and the other end of the drive cylinder is hinged to the middle of the connecting frame. The connecting frame includes a first connecting rod with one end hinged to a connecting rod, a first rotating shaft and a second rotating shaft coaxially distributed and rotatably mounted on an adjusting seat, a curved arm fixed to one end of the first rotating shaft and the second rotating shaft close to each other, and a second connecting rod hinged to the free end of the curved arm. The central axis of the second connecting rod is perpendicular to the central axis of the first connecting rod. The other end of the first connecting rod is hinged to the middle of the second connecting rod. The other end of the driving cylinder is hinged to the middle of the second connecting rod. When the distance between the second connecting rod and the intermediate shaft is at its minimum, the connecting frame forms a self-locking mechanism.

2. The abrasive winding device according to claim 1, characterized in that: The low support is inclined with a through groove, which is inclined along the direction from the second grinding roller to the first grinding roller. The two bearing seats are respectively located in the through grooves on the two low support parts, and lifting cylinders are respectively provided between the two bearing seats and the base plate.

3. The abrasive winding device according to claim 2, characterized in that: The through groove has guide grooves on both sides and along its length, and the bearing seat has a slider that cooperates with the guide grooves.

4. The abrasive winding device according to claim 1, characterized in that: The third drive assembly includes a drive motor, a drive pulley on the output shaft of the drive motor, a driven pulley on the support column, and a transmission belt wound around the drive pulley and the driven pulley.

5. The abrasive winding device according to any one of claims 1 to 4, characterized in that: A buffer assembly is provided between the upper end of the support column and the base plate. The buffer assembly includes a buffer seat fixed to the lower surface of the base plate and a buffer cylinder provided on the buffer seat. The upper part of the support column is embedded in the buffer cylinder. A first locking block is provided at the lower end of the buffer cylinder. A second locking block is provided on the outer surface of the support column. A torsion spring is provided between the first locking block and the second locking block. A buffer frame and a through hole are provided in the middle of the outer surface of the buffer cylinder. A wear-resistant block is embedded in the through hole. A threaded rod is threadedly connected to the buffer frame. A pressure plate is provided at the inner end of the threaded rod. A buffer spring is provided between the pressure plate and the wear-resistant block.

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