Grid unwinding assembly

Abstract

The utility model discloses a grid unwinding assembly, which comprises a supporting assembly, an unwinding assembly, a winding assembly, a winding assembly, a winding assembly and a winding assembly, and is characterized in that the bottom of the cross section of the supporting groove is arc-shaped; the unwinding drum comprises a drum body and a limiting disc, and a first butt joint part is arranged on the face, back to the drum body, of the limiting disc; the butt joint assemblies are arranged at the two ends of the supporting groove respectively and comprise butt joint discs, the butt joint discs rotate around the axes of the butt joint discs, and second butt joint parts are arranged on the faces, adjacent to the supporting groove, of the butt joint discs; the translation assembly drives the butt joint assembly to move; and the rotating assembly drives the butt joint disc to rotate. According to the grid unwinding assembly, centering of the unwinding drum is achieved while the limiting disc is supported through the supporting groove, the butt-joint assembly is driven by the translation assembly to be close to the limiting disc, after the first butt-joint part and the second butt-joint part are connected, the butt-joint assembly is driven by the rotating assembly to rotate, power for rotation of the unwinding drum is provided, operation is convenient, the structure is simple, cost is reduced, and practicability is high. The unwinding drum is supported and rotated through the supporting assembly and the rotating assembly, and stable unwinding is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grid unwinding, in particular to a grid unwinding component. Background Art

[0002] The grid unwinder is mainly used to automatically unwind rolled raw materials (usually lead strips) to subsequent processing equipment for punching and other processing. The grid unwinder can provide raw materials stably and continuously, ensuring the smooth operation of the production line.

[0003] Before the grid unwinder is operational, a worker must install the winding shaft into the corresponding unwinding mechanism and align it to ensure coaxiality. Prior art, such as Chinese Utility Model Patent Publication No. CN218310096U, discloses a feeding device for punching battery grids. This device utilizes a centering and transfer mechanism to assist in the operation, lifting and translating the winding shaft for easier alignment. A tightening mechanism then rotates the sleeve to secure it coaxially with the winding shaft, eliminating the need for manual tightening and reducing the burden on workers.

[0004] However, the feeding device is complex in structure, which increases the cost of the equipment. In addition, during actual centering, the centering mechanism is required to move the winding shaft in both the lifting and translation directions, which is time-consuming. In addition, the tightening part in the tightening mechanism is inserted into the inner hole of the winding shaft for support and locking. The winding shaft and the coiled material on the winding shaft are heavy, and the overall weight is usually several tons. As a result, the tightening part is subjected to excessive pressure and is easily deformed and damaged, which greatly reduces the coaxial locking effect of the winding shaft, making it difficult to achieve stable rotation of the winding shaft, affecting the unwinding effect.

[0005] Therefore, it is necessary to improve the grid unwinding assembly in the prior art. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects in the prior art and provide a grid unwinding assembly which has a simple structure, reduces costs, is convenient and quick to align, and ensures stable rotation of the unwinding drum to achieve stable feeding.

[0007] In order to achieve the above technical effects, the technical solution of the utility model is: a grid unwinding assembly, comprising:

[0008] A support assembly, the support assembly comprising a support slot extending in a horizontal direction with a slot opening facing upward, the support slot being a through slot and having an arc-shaped bottom in cross section;

[0009] The unwinding drum comprises a cylinder with a horizontal axis and a limit plate fixed at both ends of the cylinder with a coaxial centerline and arranged in the support groove, the limit plate is adapted to the lower portion of the support groove, and a first docking portion is provided on a side of the limit plate facing away from the cylinder, and the first docking portion is spaced apart from the axis of the unwinding drum;

[0010] Docking components, the docking components are respectively provided at both ends of the support groove and correspond one-to-one with the limit plates, the docking components include a docking plate, the axis of the docking plate passes through the center of the bottom of the cross section of the support groove, the docking plate rotates around its own axis, and a second docking portion is provided on a surface of the docking plate adjacent to the support groove;

[0011] a translation assembly, the translation assembly corresponding to the docking assembly one-to-one and driving the corresponding docking assembly to move along the length direction of the support groove, so as to achieve a radially detachable connection between the docking plate and the limiting plate through the first docking portion and the second docking portion;

[0012] A rotating assembly is provided between the output end of one of the translation assemblies and the docking assembly corresponding to the translation assembly, and the rotating assembly drives the docking plate to rotate.

[0013] Preferably, in order to achieve a quick detachable connection between the docking plate and the upper limit plate on the unwinding drum, one of the first docking portion and the second docking portion is an inserting recess and the other is an inserting protrusion.

[0014] Preferably, in order to facilitate the insertion of the plug-in boss into the plug-in recess, the width of the plug-in recess is greater than the outer diameter of the plug-in boss, or the plug-in recess is an arc-shaped opening, and the axis of the plug-in recess coincides with the axis of the docking plate.

[0015] Preferably, in order to further facilitate the rapid docking of the docking plate and the limiting plate, the plug-in recesses are arc-shaped and are distributed in a circular array with their own axis as the center line, and adjacent plug-in recesses are arranged closely together.

[0016] Preferably, in order to reduce the friction force when the limit plate rotates, a ball that rotates around its own center is provided on the docking plate, and the ball protrudes from the side of the docking plate adjacent to the support groove. The ball is distributed in a circular array with the axis of the docking plate as the center line.

[0017] Preferably, in order to reduce the friction force when the limit plate rotates, a sleeve is provided on the support groove, which is axially consistent with the length direction of the support groove and rotates around its own axis. The sleeve is distributed on the inner wall of the support groove along the length direction of the cross-section of the inner wall of the support groove.

[0018] Preferably, in order to facilitate stable rotation of the limiting plate in the supporting groove, the depth of the supporting groove is greater than the outer diameter of the limiting plate.

[0019] Preferably, in order to accurately control the axial position of the docking plate, a distance sensor facing the supporting groove is provided on the docking plate.

[0020] Preferably, in order to stably support the unwinding drum, two support assemblies are provided, which are distributed along the length direction of the support groove and correspond one-to-one to the limit plates at both ends of the unwinding drum.

[0021] Preferably, in order to expand the scope of application of the unwinding drum, the support groove is slidably arranged in parallel to its own length direction and is connected to a locking component, and the locking component is used to lock the support groove in at least two positions.

[0022] To sum up, compared with the existing technology, the grid unwinding assembly of the utility model supports the limit disk through the support groove while realizing the centering of the unwinding drum, and uses the translation assembly to drive the docking assembly close to the limit disk, so that after the first docking part and the second docking part are connected, the docking assembly is driven by the rotating assembly to rotate, providing power for the rotation of the unwinding drum. It is easy to operate, simple in structure, and reduces costs. It relies on the support assembly and the rotating assembly to support and rotate the unwinding drum respectively, thereby achieving stable unwinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 yes Figure 1 Explosion diagram of

[0025] Figure 3 yes Figure 2 A magnified view of part A;

[0026] Figure 4 It is a structural diagram of the support assembly of the utility model;

[0027] Figure 5 yes Figure 4 Explosion diagram of

[0028] Figure 6 It is a structural diagram of the translation assembly of the utility model;

[0029] Figure 7 It is a structural diagram of the docking assembly of the utility model;

[0030] Figure 8 yes Figure 7 Explosion diagram of

[0031] Figure 9 yes Figure 7Schematic diagram of the cross-section structure;

[0032] Figure 10 It is a structural schematic diagram of the unwinding drum of the utility model;

[0033] In the figure: 1. Base; 11. Bracket; 12. Guide rail; 121. Positioning socket; 13. Locking assembly; 131. Screw; 132. Smooth rod; 133. Protruding cap; 2. Support assembly; 21. Support groove; 211. U-shaped plate; 212. Transverse connecting shaft; 213. Push rod; 22. Sleeve; 23. Support foot; 24. Sliding seat; 241. Slide groove; 242. Positioning lock hole; 3. Unwinding drum; 31. Cylinder body; 32. Limiting plate; 321. Insertion notch; 4. Docking assembly; 41. Docking plate; 4 11. Inner disk; 4111. Assembly through hole; 4112. Inner through hole; 412. Outer disk; 4121. Assembly blind hole; 4122. Outer through hole; 413. Bolt; 414. Nut; 42. Insert boss; 43. Ball bearing; 44. Distance sensor; 5. Translation assembly; 51. Translation motor; 52. Screw; 53. Screw sleeve; 54. Slide rod; 55. Slide sleeve; 56. Translation frame; 6. Rotation assembly; 61. Rotation motor; 62. Reducer; 7. Connection assembly; 71. Connection frame; 72. Bearing. DETAILED DESCRIPTION

[0034] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] like Figures 1-10 As shown, the grid unwinding assembly of the present invention includes:

[0036] The support assembly 2 includes a support groove 21 extending in a horizontal direction and with the groove opening facing upward. The support groove 21 is a through groove and the bottom of the cross section is an arc shape;

[0037] The unwinding drum 3 includes a cylinder 31 with a horizontal axis and a limit plate 32 fixed to both ends of the cylinder 31 and arranged in the support groove 21. The limit plate 32 is adapted to the lower portion of the support groove 21. The limit plate 32 is provided with a first docking portion on a side facing away from the cylinder 31. The first docking portion is spaced apart from the axis of the unwinding drum 3.

[0038] Docking assembly 4, which is provided at both ends of the support groove 21 and corresponds one-to-one with the limit plate 32. The docking assembly 4 includes a docking plate 41. The axis of the docking plate 41 passes through the center of the bottom of the cross section of the support groove 21. The docking plate 41 rotates around its own axis. A second docking portion is provided on a surface of the docking plate 41 adjacent to the support groove 21.

[0039] The translation assembly 5 corresponds to the docking assembly 4 one by one and drives the corresponding docking assembly 4 to move along the length direction of the support groove 21 to achieve a radially detachable connection between the docking plate 41 and the limiting plate 32 through the first docking portion and the second docking portion;

[0040] The rotating assembly 6 is provided between the output end of one of the translation assemblies 5 and the docking assembly 4 corresponding to the translation assembly 5 , and the rotating assembly 6 drives the docking plate 41 to rotate;

[0041] The grid unwinding assembly of the utility model also includes:

[0042] The base 1 is fixed horizontally on the ground. Two vertically arranged brackets 11 are fixed on the base 1. The two brackets 11 are arranged along the length direction of the support groove 21. The two translation components 5 are respectively arranged on the two brackets 11. The support component 2 is arranged on the base 1;

[0043] The connecting component 7 is arranged between the output end of another translation component 5 and the docking component 4 corresponding to the translation component 5.

[0044] When the device is in use, the unwinding drum 3 is placed on the support groove 21 through the lifting equipment. Since the bottom of the support groove 21 is arc-shaped and the lower part of the support groove 21 is adapted to the limit plate 32 at the end of the cylinder 31 (the outer diameter of the limit plate 32 is larger than the outer diameter of the cylinder 31), after the unwinding drum 3 is placed on the support groove 21, the support groove 21 supports the unwinding drum 3, and the unwinding drum 3 and the support groove 21 and the docking plate 41 are coaxial.

[0045] Then, the two translation components 5 at both ends of the support groove 21 are started, and the two docking components 4 are driven to lean against the end of the unwinding drum 3 on the support groove 21 through the rotation component 6 and the connection component 7, that is, the limit plate 32 moves, so that the second docking part on the docking plate 41 and the first docking part on the limit plate 32 are docked. Then, the rotation component 6 is started, driving the docking plate 41 to rotate, and the connection between the first docking part and the second docking part is used to realize the rotation of the unwinding drum 3 around its own axis.

[0046] Compared with the prior art, the grid unwinding assembly of the present invention relies on the support groove 21 to support the limit plate 32, thereby supporting the unwinding drum 3, and the lower part of the support groove 21 is adapted to the limit plate 32, so that the support groove 21 can realize automatic centering of the unwinding drum 3. It is only necessary to use the lifting equipment to place the limit plate 32 into the support groove 21 from above the support groove 21, without the need for related operations such as lifting and translation, which is convenient and quick to center. The rotating assembly 6 drives the docking plate 41 to rotate, providing power for the unwinding drum 3 to rotate around its own axis. The rotating assembly 6 and the support assembly 2 respectively rotate and support the unwinding drum 3, thereby ensuring the stable rotation of the unwinding drum 3. In addition, the device has a simple structure and can reduce costs.

[0047] like Figure 6 As shown, the translation assembly 5 includes a translation motor 51, the casing of the translation motor 51 is fixed on one of the brackets 11 and faces the support assembly 2, the output end is fixedly connected to the coaxial centerline with a screw rod 52, the screw rod 52 is threadedly connected to a screw sleeve 53, the screw sleeve 53 is fixedly connected to a translation frame 56, and guide units are also provided on both sides of the screw rod 52, the guide unit includes a sliding rod 54 and a sliding sleeve 55 that slide together, and the sliding rod 54 and the sliding sleeve 55 are fixedly connected to the translation frame 56 and the bracket 11 respectively.

[0048] After adopting the above structure, when the position of the two docking components 4 needs to be adjusted, the translation motor 51 is started, driving the screw rod 52 to rotate, acting on the screw sleeve 53, and under the mutual cooperation of the sliding rod 54 and the sliding sleeve 55, the translation frame 56 moves along the length direction parallel to the support groove 21, and the movement of the two docking components 4 is realized through the connecting component 7 and the rotating component 6.

[0049] like Figure 2 As shown, the rotating assembly 6 includes a rotating motor 61 and a reducer 62, and the rotating motor 61 and the reducer 62 are both fixed on the translation frame 56 of one of the translation assemblies 5, the rotating shaft of the rotating motor 61 is connected to the input end of the reducer 62, and the output of the reducer 62 is connected to the docking disk 41 of one of the docking assemblies 4; the connecting assembly 7 includes a connecting frame 71 and a bearing 72, one end of the connecting frame 71 is fixedly connected to the translation frame 56 of another translation assembly 5, and the other end is connected to the inner ring of the bearing 72, and the outer ring of the bearing 72 is fixedly connected to the docking disk 41 of another docking assembly 4.

[0050] After adopting the above structure, the rotating motor 61 is started and the docking disk 41 is driven to rotate around its own axis through the reducer 62. The reducer 62 can reduce the output speed of the rotating motor 61 and increase the torque, thereby meeting the unwinding requirement; and, in the case of overload or instantaneous increase in torque, the reducer 62 can absorb part of the energy to protect the rotating motor 61 from damage. In addition, the presence of the reducer 62 can also reduce the load inertia of the rotating motor 61, making the start and stop and speed change of the rotating motor 61 easier to control; and the output end of the other translation component 5 is connected to the docking disk 41 of the docking component 4 through the connecting frame 71 and the bearing 72, so that after the translation component 5 is activated, it can drive the docking disk 41 to move axially, and the inner ring of the bearing 72 is fixedly connected to the connecting frame 71, and the outer ring is fixedly connected to the docking disk 41, so that the docking disk 41 can rotate around its own axis, and the first docking part and the second docking part are aligned, so that the docking disk 41 can be docked with the limit disk 32 on the unwinding drum 3.

[0051] A further improvement is that, between the first docking portion and the second docking portion, one is an inserting recess 321 and the other is an inserting protrusion 42 .

[0052] Specifically, such as Figure 7 and Figure 10 As shown, the first docking portion is provided on the limiting plate 32 and is separated from the axis of the unwinding drum 3 by the plugging recess 321 , and the second docking portion is provided on the docking plate 41 and is separated from the axis of the docking plate 41 by the plugging protrusion 42 .

[0053] With the above design, after the unwinding drum 3 is placed in the support groove 21, the docking plate 41 is rotated so that the plugging protrusion 42 is aligned with the plugging recess 321. The translation assembly 5 drives the docking plate 41 to move, so that the plugging protrusion 42 is inserted into the plugging recess 321. Then, the docking plate 41 is rotated by the rotary motor 61, so that the plugging protrusion 42 rotates around the axis of the docking plate 41. After acting on the inner wall of the plugging recess 321, the limit plate 32 is rotated, thereby realizing the rotation of the unwinding drum 3 about its own axis. After unwinding is completed, the translation assembly 5 drives the two docking plates 41 away from the limit plate 32, and the unwinding drum 3 can be removed from the support groove 21 by the lifting equipment. In this way, the docking plate 41 and the unwinding drum 3 can be quickly connected and disconnected, which is conducive to improving work efficiency.

[0054] A further improvement is that the plug-in recesses 321 are arc-shaped and are distributed in a ring array with their own axis as the center line, and adjacent plug-in recesses 321 are arranged closely together.

[0055] Specifically, in the present invention, there are six plug-in recesses 321 on the limit plate 32 distributed in a circular array, and there are also six corresponding plug-in bosses 42 distributed in a circular array. By increasing the length of the plug-in recesses 321 and shortening the spacing between adjacent plug-in recesses 321, it is convenient to insert the plug-in bosses 42 into the plug-in recesses 321, so that after the plug-in bosses 42 rotate, they can act on the inner wall of the plug-in recess 321 to drive the unwinding drum 3 to rotate; of course, the number of plug-in recesses 321 and plug-in bosses 42 can also be other multiples. In addition, the plug-in recess 321 can also increase its width so that its width is greater than the width of the plug-in bosses 42, so that the plug-in bosses 42 can be conveniently inserted into the plug-in recess 321.

[0056] A further improvement is that a ball 43 rotating around its own center is provided on the docking plate 41. The ball 43 protrudes from the side of the docking plate 41 adjacent to the support groove 21. The ball 43 is distributed in a ring array with the axis of the docking plate 41 as the center line.

[0057] After the docking plate 41 is driven to move by the translation component 5, the ball 43 protruding from the docking plate 41 is in contact with the side of the limit plate 32 away from the cylinder 31, which can achieve good axial positioning of the unwinding drum 3, prevent the unwinding drum 3 from axial deviation, and ensure the axial accuracy of the coil after unwinding. At the same time, the rotating ball 43 is in contact with the limit plate 32, which can reduce the friction force on the limit plate 32 when it rotates, thereby facilitating the rotation of the unwinding drum 3.

[0058] A further improvement is that a distance sensor 44 facing the supporting groove 21 is provided on the docking plate 41 .

[0059] By setting up a distance sensor 44, the distance position between the docking plate 41 and the limit plate 32 at the end of the unwinding drum 3 on the support groove 21 can be detected, so as to accurately control the translation component 5 to drive the docking plate 41 to move, so that the surface of the ball 43 on the docking plate 41 fits with the limit plate 32.

[0060] The specific structure of the docking assembly 4 of the utility model is as follows Figure 7-Figure 9As shown, the docking plate 41 includes an inner plate 411 and an outer plate 412 with the same outer diameter and coaxial centerline. The inner plate 411 is located between the support assembly 2 and the outer plate 412. The inner plate 411 and the outer plate 412 are fixedly connected by a fastening unit distributed in an annular array. The fastening unit includes a bolt 413 and a nut 414 connected by a thread. The inner plate 411 and the outer plate 412 are adjacent to each other on a side with an annular array of assembly through holes 4111. The outer plate 412 and the inner plate 411 are adjacent to each other on a side with an annular array of assembly through holes 4111. The annular array has an assembly blind hole 4121, and the assembly through hole 4111 and the assembly blind hole 4121 correspond one to one and are combined to form an assembly cavity adapted for the ball 43. The plug-in boss 42 is integrally connected to the inner disk 411. The inner disk 411 is also provided with an inner through hole 4112, and the outer disk 412 is also provided with an outer through hole 4122. The inner through hole 4112 and the outer through hole 4122 are interconnected and combined to form a mounting through hole, and the distance sensor 44 is arranged in the mounting through hole.

[0061] A further improvement is that the depth of the support groove 21 is greater than the outer diameter of the limiting disk 32. By increasing the groove depth of the support groove 21, it is ensured that the limiting disk 32 can be accommodated in the support groove 21, ensuring the safe and stable rotation of the unwinding drum 3.

[0062] A further improvement is that two support assemblies 2 are provided, which are distributed along the length direction of the support groove 21 and correspond one-to-one to the limit plates 32 at both ends of the unwinding drum 3; a sleeve 22 is provided on the support groove 21, which is axially consistent with the length direction of the support groove 21 and rotates around its own axis, and the sleeve 22 is distributed on the inner wall of the support groove 21 along the length direction of the cross-section of the inner wall of the support groove 21.

[0063] The specific structure of the support groove 21 is as follows Figure 4 and Figure 5 As shown, the support groove 21 includes two U-shaped plates 211 distributed along its own circumference, and the tops of the two U-shaped plates 211 are fixedly connected by a top rod 213. There is also a transverse connecting shaft 212 between the two U-shaped plates 211 and spaced apart along the length direction of the U-shaped plates 211. The sleeve 22 is sealed and sleeved outside the transverse connecting shaft 212, and the two ends of the sleeve 22 are in contact with the two U-shaped plates 211.

[0064] After adopting the above design, the two U-shaped plates 211 are fixedly connected by two top rods 213 and multiple transverse connecting shafts 212 to form a support groove 21, and a sleeve 22 is arranged outside the transverse connecting shaft 212. While supporting the limit plate 32 through the sleeve 22, the sleeve 22 can rotate around the axis of the transverse connecting shaft 212, reducing the friction force on the limit plate 32 during rotation, thereby facilitating the rotation of the unwinding drum 3 and reducing the power consumption of the rotating component 6.

[0065] A further improvement is that the support groove 21 is slidably arranged in a direction parallel to its own length and is connected to a locking component 13, which is used to lock the support groove 21 in at least two positions.

[0066] Specifically, the bottom surface of the U-shaped plate 211 is fixed with a support leg 23 distributed along the width direction of the support groove 21 and extending in the plumb direction. The bottom end of the support leg 23 is fixedly connected with a horizontal sliding seat 24. The bottom surface of the sliding seat 24 is in contact with the top surface of the base 1. The bottom surface of the sliding seat 24 is also provided with two slide grooves 241 distributed along the width direction of the support groove 21. The top surface of the base 1 is fixedly connected with two guide rails 12 distributed side by side. The guide rails 12 extend in a length direction parallel to the support groove 21. The slide grooves 241 are adapted to the guide rails 12, so as to meet the function of the support groove 21 sliding and changing its position along its own length direction.

[0067] The guide rail 12 is provided with a plurality of positioning holes 121 distributed side by side along its length direction. The positioning holes 121 are through holes extending in the vertical direction. The positioning holes 121 are arranged closely to each other. The sliding seat 24 is provided with a positioning lock hole 242 extending in the vertical direction and in the shape of a through hole. The locking assembly 13 includes a locking pin, and the positioning lock hole 242 is plugged into and matched with one of the positioning holes 121 through the locking pin.

[0068] With the above design, the sliding seat 24 can be moved along the guide rail 12 to adjust the position of the support groove 21 so that the positioning lock hole 242 is aligned with one of the positioning sockets 121. Then, the locking pin is inserted to lock the position of the sliding seat 24, thereby locking the position of the support groove 21. In this way, the axial position of the support groove 21 can be easily adjusted and locked according to the distance and position of the limit plate 32 of the unwinding drum 3, making the support groove 21 suitable for unwinding drums 3 of various lengths.

[0069] To prevent the lock pin from loosening after insertion, the lock pin includes a convex cap 133, a screw rod 131, and a smooth rod 132, which are coaxially connected in sequence. The outer diameter of the smooth rod 132 is consistent with the inner diameter of the positioning socket 121. The screw rod 131 is threadedly connected to the inner wall of the positioning lock hole 242, and the screw rod 131 and the smooth rod 132 have the same outer diameter. With this design, the screw rod 131 is threadedly connected to the positioning lock hole 242, making it easy to use the convex cap 133 to screw the screw rod 131 into the positioning lock hole 242. At the same time, the circumferential outer edge of the smooth rod 132 is sealed against the positioning socket 121, thereby locking the position of the sliding seat 24 and the support groove 21 and preventing the lock pin from disengaging from the positioning socket 121 and the positioning lock hole 242.

[0070] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A grid unwinding assembly, characterized in that: include: A support assembly (2), the support assembly (2) comprising a support groove (21) extending in a horizontal direction and with a groove opening facing upward, the support groove (21) being a through groove and having a bottom in an arc-shaped cross section; An unwinding drum (3), the unwinding drum (3) comprising a cylinder (31) with a horizontal axis and a limiting plate (32) fixed to both ends of the cylinder (31) with a coaxial centerline and arranged in the support groove (21), the limiting plate (32) being adapted to the lower portion of the support groove (21), the limiting plate (32) being provided with a first docking portion on a side facing away from the cylinder (31), and the first docking portion being spaced apart from the axis of the unwinding drum (3); A docking assembly (4), the docking assembly (4) being arranged at both ends of the support groove (21) and corresponding one-to-one with the limit plate (32), the docking assembly (4) comprising a docking plate (41), the axis of the docking plate (41) passing through the center of the bottom of the cross section of the support groove (21), the docking plate (41) rotating around its own axis, and a second docking portion being provided on a surface of the docking plate (41) adjacent to the support groove (21); a translation assembly (5), the translation assembly (5) corresponding to the docking assembly (4) one-to-one and driving the corresponding docking assembly (4) to move along the length direction of the support groove (21), so as to achieve a radially detachable connection between the docking plate (41) and the limiting plate (32) through the first docking portion and the second docking portion; A rotating assembly (6) is provided between an output end of one of the translation assemblies (5) and a docking assembly (4) corresponding to the translation assembly (5), and the rotating assembly (6) drives the docking plate (41) to rotate.

2. The grid unwinding assembly according to claim 1, characterized in that: Of the first docking portion and the second docking portion, one is a plug-in recess (321) and the other is a plug-in protrusion (42).

3. The grid unwinding assembly according to claim 2, characterized in that: The width of the plug-in recess (321) is greater than the outer diameter of the plug-in protrusion (42), or the plug-in recess (321) is an arc-shaped opening, and the axis of the plug-in recess (321) coincides with the axis of the docking plate (41).

4. The grid unwinding assembly according to claim 3, characterized in that: The plug-in recesses (321) are arc-shaped and are distributed in a ring array with their own axis as the center line, and adjacent plug-in recesses (321) are arranged closely together.

5. The grid unwinding assembly according to claim 1, characterized in that: The docking plate (41) is provided with a ball (43) that rotates around its own sphere center. The ball (43) protrudes from a side of the docking plate (41) adjacent to the support groove (21). The ball (43) is distributed in a ring array with the axis of the docking plate (41) as the center line.

6. The grid unwinding assembly according to claim 1, characterized in that: The support groove (21) is provided with a sleeve (22) whose axial direction is consistent with the length direction of the support groove (21) and rotates around its own axis. The sleeve (22) is distributed on the inner wall of the support groove (21) along the length direction of the cross section of the inner wall of the support groove (21).

7. The grid unwinding assembly according to claim 1, characterized in that: The depth of the support groove (21) is greater than the outer diameter of the limiting plate (32).

8. The grid unwinding assembly according to claim 1, characterized in that: The docking plate (41) is provided with a distance sensor (44) facing the supporting groove (21).

9. The grid unwinding assembly according to claim 1, characterized in that: The support components (2) are provided with two, distributed along the length direction of the support groove (21) and corresponding one-to-one to the limit plates (32) at both ends of the unwinding drum (3).

10. The grid unwinding assembly according to claim 1, characterized in that: The support groove (21) is slidably arranged in a direction parallel to its own length and is connected to a locking component (13). The locking component (13) is used to lock the support groove (21) in at least two positions.

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