Roll changing device

Abstract

The utility model discloses a roll changing device which comprises a winding and unwinding mechanism, the winding and unwinding mechanism comprises two winding and unwinding frames which are oppositely arranged front and back, an unwinding assembly and a winding assembly, and the unwinding assembly and the winding assembly each comprise a first rotating shaft and a second rotating shaft which are oppositely arranged front and back. The first rotating shaft penetrates through one winding and unwinding frame and can rotate and move back and forth relative to the winding and unwinding frame, and the second rotating shaft penetrates through the other winding and unwinding frame and can rotate and move back and forth relative to the winding and unwinding frame; the transfer mechanism and the winding and unwinding mechanism are arranged in a left-right spaced mode, the transfer mechanism comprises two transfer supporting frames and a transfer assembly, the two transfer supporting frames and the transfer assembly are oppositely arranged in a front-back mode, and the transfer assembly comprises two transfer rotating shafts which are oppositely arranged in a front-back mode; and the lifting platform is located between the two winding and unwinding frames and the two transfer supporting frames, and the lifting platform can move left and right. According to the utility model, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a rewinding device. Background Technology

[0002] In the production process of lithium battery electrodes, coating lines are typically used to coat the electrodes.

[0003] Existing coating production lines generally include an unwinding mechanism at the head of the coating line, a winding mechanism at the tail of the coating line, and a coating machine located between the unwinding and winding mechanisms. The unwinding mechanism typically includes two unwinding frames arranged front-to-back and an unwinding shaft rotatably disposed between the two unwinding frames. The unwinding shaft is used to unwind the substrate (which includes an unwinding drum and a substrate wound around it) mounted on it. The winding mechanism typically includes two winding frames arranged front-to-back and a winding shaft rotatably disposed between the two winding frames. The winding shaft is used to rotate the winding drum mounted on it after the substrate (i.e., the electrode) has been coated by the coating machine, thereby winding the coated substrate to form a wound roll (which includes a winding drum and a substrate wound around it). After the substrate of the unwinding roll on the unwinding spool is unwound, leaving only an empty unwinding drum, a new unwinding roll is typically transferred to the unwinding mechanism by a first AGV. Then, the empty unwinding drum is manually removed from the unwinding spool and transferred to the first AGV. The new unwinding roll from the first AGV is then manually installed onto the unwinding spool, thus completing the roll change. Similarly, after the take-up drum on the take-up spool is wound up and forms a take-up roll, a second AGV typically transfers the empty take-up drum to the take-up mechanism. Then, the take-up roll is manually removed from the take-up spool and transferred to the second AGV. The empty take-up drum from the second AGV is then manually installed onto the take-up spool, completing the roll change. Because roll change is done manually, production time is increased, production efficiency is reduced, and production costs are increased. Furthermore, the need for two AGVs during roll change further increases production costs. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a roll changing device that can save production time, improve production efficiency, and reduce production costs.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A winding and unwinding device includes: a winding and unwinding mechanism, the winding and unwinding mechanism comprising two winding and unwinding frames arranged front-to-back, an unwinding assembly, and a winding assembly, each of the unwinding assembly and the winding assembly including a first rotating shaft and a second rotating shaft arranged front-to-back, the first rotating shaft passing through one of the winding and unwinding frames and being rotatable and movable back-to-back relative to that frame, a first end of the first rotating shaft located between the two winding and unwinding frames and having a first clamp, a second end of the first rotating shaft located in front of the two winding and unwinding frames, the second rotating shaft passing through the other winding and unwinding frame and being rotatable and movable back-to-back relative to that frame, a first end of the second rotating shaft located between the two winding and unwinding frames and having a second clamp, and a second end of the second rotating shaft located behind the two winding and unwinding frames; and a transfer mechanism, the transfer mechanism and the winding and unwinding mechanism being arranged left-to-right at intervals. The transfer mechanism includes two transfer support frames and a transfer assembly arranged in a front-to-back configuration. The transfer assembly includes two transfer shafts arranged in a front-to-back configuration, each passing through one of the two transfer support frames and capable of rotating and moving back and forth relative to the corresponding transfer support frames. One transfer shaft has its first end located between the two transfer support frames and its second end located in front of the two transfer support frames. The other transfer shaft has its first end located between the two transfer support frames and its second end located behind the two transfer support frames. The first ends of the two transfer shafts are each provided with two transfer clamps. A lifting platform is located between the two unwinding and winding frames and the two transfer support frames. The lifting platform can move left and right to transfer unwinding material, winding material, unwinding drum, and winding drum between the unwinding and winding mechanism and the transfer mechanism. The lifting platform can accommodate clamps of different heights.

[0007] The beneficial effects of this utility model are as follows: This utility model, through the provision of a winding and unwinding mechanism, a transfer mechanism, and a lifting platform, includes a winding and unwinding mechanism comprising an unwinding assembly and a winding assembly, and a transfer mechanism comprising a transfer assembly. After the substrate of the unwound material on the unwinding assembly is unwound and only an empty unwinding drum remains, the empty unwinding drum can be automatically removed from the first and second rotating shafts of the unwinding assembly and transferred to an AGV vehicle. Furthermore, new unwound material transferred by the AGV vehicle can be automatically installed on the first and second rotating shafts of the unwinding assembly. After the winding drum on the winding assembly has finished winding the coated substrate to form a wound material, the wound material can be automatically removed from the winding assembly... The unwinding and rewinding components can be automatically removed from the first and second shafts and transferred to the AGV vehicle. Empty take-up rolls transported by the AGV vehicle can also be automatically installed on the first and second shafts of the take-up assembly. This enables automatic roll changing, which saves production time, improves production efficiency, and reduces production costs compared to the existing manual method. Furthermore, by integrating the unwinding and take-up components together, only one AGV vehicle is needed, eliminating the need for two, further reducing production costs. At the same time, since the roll changing device is located at the head of the coating production line, the AGV vehicle does not need to travel from one side of the coating production line, improving the utilization rate of workshop space. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the structure of a roll changing device provided in one embodiment of the present invention;

[0010] Figure 2 yes Figure 1 A schematic diagram of the first angle of the winding and unwinding mechanism of the winding changer shown;

[0011] Figure 3 yes Figure 2 A schematic diagram of the second angle of the winding and unwinding mechanism shown;

[0012] Figure 4 yes Figure 2 A schematic diagram of the structure of the first rotating shaft, first sliding sleeve, first chuck, rotation drive module, and first take-up / unwinding drive module of the unwinding assembly of the unwinding mechanism shown;

[0013] Figure 5 yes Figure 2 A schematic diagram of the structure of the second rotating shaft, connecting sleeve, second sliding sleeve, second chuck, and second winding / unwinding drive module of the unwinding assembly of the winding / unwinding mechanism shown;

[0014] Figure 6 yes Figure 5A schematic diagram of the structure of the second rotating shaft, second sliding sleeve, second chuck, and second winding / unwinding drive module of the unwinding assembly shown;

[0015] Figure 7 yes Figure 1 A schematic diagram of the transfer mechanism of the roll changing device shown;

[0016] Figure 8 yes Figure 7 A schematic diagram of the transfer shaft, transfer chuck, and transfer drive module of the transfer mechanism shown;

[0017] Figure 9 yes Figure 1 A schematic diagram of the structure of the lifting platform of the winding device when the cylinder support assembly and the coil support assembly are in the lowest position, and the slide rail and platform drive mechanism.

[0018] Figure 10 yes Figure 1 A schematic diagram of the material cylinder support assembly and the coil support assembly of the lifting platform of the coil changing device shown in the diagram, at the highest position and the first angle of the platform drive mechanism;

[0019] Figure 11 yes Figure 10 A schematic diagram of the lifting platform and platform drive mechanism at a second angle;

[0020] Figure 12 yes Figure 10 A schematic diagram of the upper frame, coil support assembly, and drum support assembly of the lifting platform at a first angle;

[0021] Figure 13 yes Figure 12 A schematic diagram of the upper frame, coil support assembly, and drum support assembly of the lifting platform from a second angle.

[0022] Figure 14 yes Figure 12 The diagram shows the structure of the support module of the barrel support assembly after the mounting plate is removed at the first angle.

[0023] Figure 15 yes Figure 14 The diagram shows the second angle of the support module after the mounting plate has been removed.

[0024] Figure 16 yes Figure 14 The diagram shows the structure of the support module at the third angle after the mounting plate has been removed.

[0025] Figure 17 yes Figure 14 The diagram shows the structure of the support module after removing the mounting plate and support block.

[0026] Figure 18 yes Figure 14 The diagram shows the first angle of the support module after removing the mounting plate, support base, and support block.

[0027] Figure 19 yes Figure 18 The diagram shows the second angle of the support module after removing the mounting plate, support base, and support block.

[0028] Figure label:

[0029] 10. Winding / unwinding mechanism; 11. Winding / unwinding frame; 111. First frame through hole; 112. Second frame through hole; 12. Unwinding assembly; 121. First rotating shaft; 1211. First sliding sleeve; 1212. Sliding sleeve bearing seat; 1213. Winding / unwinding bearing seat; 122. Second rotating shaft; 1221. Connecting sleeve; 1222. Second sliding sleeve; 1223. Sliding sleeve fixing seat; 1224. Connecting sleeve bearing; 123. First chuck; 124. Second chuck; 125. Rotation drive module; 1251. Second motor; 12 52. Second reducer; 1253. Drive sprocket; 1254. Driven sprocket; 126. First take-up / unwind drive module; 1261. Take-up / unwind cylinder; 1262. First connector; 127. Second take-up / unwind drive module; 1271. First motor; 1272. Second reducer; 1273. Lead screw; 12731. Lead screw bearing seat; 1274. Nut; 1275. Second connector; 12751. Through hole of second connector; 1276. Support shaft; 1277. Linear bearing; 13. Take-up assembly;

[0030] 20. Transfer mechanism; 21. Transfer support frame; 22. Transfer shaft; 2211. Transfer bearing seat; 222. Connecting bearing seat; 23. Transfer chuck; 24. Transfer drive module; 241. Transfer cylinder; 242. Transfer connector;

[0031] 30. Lifting platform; 31. Lower frame; 31a. Lower frame through cavity; 31b. Lower mounting groove; 311. Sliding block; 312a. First lower support rod; 312b. Second lower support rod; 313a. Second middle support rod; 313b. Second middle support rod; 32. Upper frame; 32a. Upper frame through cavity; 32b. Upper mounting groove; 321a. First upper support rod; 321b. Second upper support rod; 322. Frame support plate; 33. Scissor bracket; 331. First connecting rod; 332. Second connecting rod; 333. Third connecting rod; 334. Fourth connecting rod; 335. Bracket drive component; 34. Coil support assembly; 341. Mounting plate; 3411. Waist hole; 3412. Vertical plate; 34121. Vertical plate through hole; 34122. Vertical plate shaft 342. Support seat; 3421. Clearance groove; 3422. Stop block; 3423. Second through hole of support seat; 3424. Support seat groove; 3425. Support seat slide rail; 3426. Support seat slider; 3433. Support seat bearing; 344. Support block; 3441. Placement groove; 3442. Pad block; 3443. Accommodating cavity; 346. Push cylinder; 3461. Cylinder seat; 347. Support shaft; 3471. Cam; 34711. Cam protrusion; 3472. Push block; 34721. Push rod; 348. Adjusting block; 35. Barrel support assembly; 361. First screw; 3611. First locking nut; 362. Second screw; 3621. Second locking nut; 363. Third screw; 3631. Third locking nut;

[0032] 40. Guide rail; 50. Platform drive mechanism; 51. Platform motor; 52. Platform reducer; 53. Horizontal rotating shaft; 54. Commutator; 55. Vertical rotating shaft; 56. Gear; 57. Rack; 60. Fixing plate;

[0033] 101. Unwind the coiled material; 102. Rewind the coiled material; 103. Unwind the roll; 104. Rewind the roll. Detailed Implementation

[0034] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0035] Please refer to Figure 1 This utility model provides a roll changing device for use at the head of a coating production line. The roll changing device includes a take-up / unwind mechanism 10, a transfer mechanism 20, a lifting platform 30, a guide rail 40, and a platform drive mechanism 50. The transfer mechanism 20 and the take-up / unwind mechanism 10 are arranged at left-right intervals.

[0036] Combination Figures 2 to 6 As shown, the unwinding / rewinding mechanism 10 includes two unwinding / rewinding frames 11 arranged opposite each other, and an unwinding component 12 and a winding component 13 mounted on the two unwinding / rewinding frames 11. The unwinding / rewinding frames 11 are used to be installed on the workshop floor, and the two unwinding / rewinding frames 11 provide mounting support for the unwinding component 12 and the winding component 13. In this embodiment, there are two unwinding components 12 and two winding components 13. The two winding components 13 and the two unwinding components 12 are arranged alternately from left to right. The two winding components 13 and the first unwinding component 12 are at the same height, and the second unwinding component 12 is located below the two winding components 13 and the first unwinding component 12. It can be understood that the number and height of the unwinding components 12 and the winding components 13 can be set according to the actual situation.

[0037] Specifically, both the unwinding assembly 12 and the winding assembly 13 include a first rotating shaft 121, a second rotating shaft 122, a rotation drive module 125, a first winding / unwinding drive module 126, and a second winding / unwinding drive module 127. The first rotating shaft 121 and the second rotating shaft 122 are arranged in a front-to-back configuration. The first rotating shaft 121 passes through one of the winding / unwinding frames 11 and can rotate and move back and forth relative to that frame. The first end of the first rotating shaft 121 is located between the two winding / unwinding frames 11 and is provided with a first clamp 123. The second end of the first rotating shaft 121 is located in front of the two winding / unwinding frames 11. The second rotating shaft 122 passes through the other winding / unwinding frame 11 and can rotate and move back and forth relative to that frame. The first end of the second rotating shaft 122 is located between the two winding / unwinding frames 11 and is provided with a second clamp 124. The second end of the second rotating shaft 122 is located behind the two winding / unwinding frames 11. A rotation drive module 125 is mounted on one of the take-up / unwinding frames 11 and is used to drive the first rotating shaft 121 to rotate, thereby driving the first chuck 123 to rotate. A first take-up / unwinding drive module 126 is mounted on one of the take-up / unwinding frames 11 and is used to drive the first rotating shaft 121 to move back and forth, thereby driving the first chuck 123 to move back and forth. A second take-up / unwinding drive module 127 is mounted on another take-up / unwinding frame 11 and is used to drive the second rotating shaft 122 to move back and forth, thereby driving the second chuck 124 to move back and forth.

[0038] In practical applications, when the unwinding drum 103 of the unwinding material 101 is positioned between the first chuck 123 and the second chuck 124 of the unwinding assembly 12, the first rotating shaft 121 of the unwinding assembly 12 drives the first chuck 123 to move backward, and the second rotating shaft 122 drives the second chuck 124 to move forward. This allows the first chuck 123 and the second chuck 124 of the unwinding assembly 12 to be inserted into both ends of the unwinding drum 103 of the unwinding material 101, thus clamping the unwinding material 101. The unwinding material 101 is then mounted on the first rotating shaft 121 and the second rotating shaft 122 of the unwinding assembly 12. Subsequently, the first rotating shaft 121 of the unwinding assembly 12 drives the first chuck 123 to rotate, thereby… The unwinding assembly 12 can rotate the unwinding roll 101, the second rotating shaft 122, and the second chuck 124, thereby enabling the unwinding of the substrate of the unwinding roll 101, which is the electrode sheet. After the substrate of the unwinding roll 101 is unwound and only the empty unwinding drum 103 remains, the first rotating shaft 121 of the unwinding assembly 12 drives the first chuck 123 to move forward and the second rotating shaft 122 drives the second chuck 124 to move backward. This allows the first chuck 123 and the second chuck 124 of the unwinding assembly 12 to move out from both ends of the empty unwinding drum 103, thereby releasing the empty unwinding drum 103. The empty unwinding drum 103 is then removed from the first rotating shaft 121 and the second rotating shaft 122 of the unwinding assembly 12. When the empty take-up drum 104 is positioned between the first chuck 123 and the second chuck 124 of the take-up assembly 13, the first shaft 121 of the take-up assembly 13 drives the first chuck 123 to move backward, and the second shaft 122 drives the second chuck 124 to move forward. This allows the first chuck 123 and the second chuck 124 of the take-up assembly 13 to be inserted into the two ends of the empty take-up drum 104, thus clamping the empty take-up drum 104. The empty take-up drum 104 is thus mounted on the first shaft 121 and the second shaft 122 of the take-up assembly 13. Then, the first shaft 121 of the take-up assembly 13 drives the first chuck 123 to rotate, thereby moving the empty take-up drum 104... The take-up drum 104, the second rotating shaft 122, and the second chuck 124 rotate, thus enabling the coated substrate to be wound up through the empty take-up drum 104. After the substrate is wound up to form a wound roll 102, the first rotating shaft 121 of the take-up assembly 13 drives the first chuck 123 to move forward, and the second rotating shaft 122 drives the second chuck 124 to move backward. This allows the first chuck 123 and the second chuck 124 of the take-up assembly 12 to move out from both ends of the take-up drum 104 of the wound roll 102, thereby releasing the wound roll 102, which is then removed from the first rotating shaft 121 and the second rotating shaft 122 of the take-up assembly 13.

[0039] In this embodiment, one of the winding and unwinding frames 11 is provided with a first through hole that passes through its outer and inner sides. The first through hole communicates with the interior of the winding and unwinding frame 11. A first rotating shaft 121 passes through the first through hole of one of the winding and unwinding frames 11. The other winding and unwinding frame 11 is provided with a second through hole that passes through its outer and inner sides. The second through hole communicates with the interior of the winding and unwinding frame 11. A second rotating shaft 122 passes through the second through hole of the other winding and unwinding frame 11. The first take-up and unwind drive module 126 includes a take-up and unwind cylinder 1261 and a first connector 1262 disposed on one of the take-up and unwind frames 11. A first sliding sleeve 1211 is sleeved on the outer periphery of the first rotating shaft 121. The first sliding sleeve 1211 is rotatably disposed in the first through hole. Two sliding sleeve bearing seats 1212 are rotatably sleeved on the outer periphery of both ends of the first sliding sleeve 1211. The two sliding sleeve bearing seats 1212 are respectively disposed in the first through hole. The two sliding sleeve bearing seats 1212 extend from both ends of the first through hole and are respectively fixed on the outer and inner sides of one of the take-up and unwind frames 11. The two sliding sleeve bearing seats 1212 provide rotational support for the first sliding sleeve 1211. The first connector 1262 is sleeved on the outer periphery of the second end of the first rotating shaft 121. The output end of the winding and unwinding cylinder 1261 is connected to the first connector 1262. The winding and unwinding cylinder 1261 is used to drive the first connector 1262 to move back and forth, thereby driving the first rotating shaft 121 to move back and forth relative to the first sliding sleeve 1211.

[0040] The first connector 1262 is provided with a mounting hole, and a take-up and untake-up bearing seat 1213 is provided in the mounting hole of the first connector 1262. The two ends of the take-up and untake-up bearing seat 1213 protrude from both sides of the first connector 1262 respectively, and the take-up and untake-up bearing seat 1213 is rotatably sleeved on the outer periphery of the second end of the first rotating shaft 121.

[0041] The second take-up / unwind drive module 127 includes a first motor 1271, a first reducer 1272, a lead screw 1273, and a nut 1274. The first reducer 1272 is disposed inside another take-up / unwind frame 11, and the first motor 1271 is mounted on the first reducer 1272. The output end of the first motor 1271 is connected to the input end of the first reducer 1272. The lead screw 1273 passes through the other take-up / unwind frame 11 and can rotate relative to it. One end of the lead screw 1273 is connected to the output end of the first reducer 1272. The nut 1274 is threadedly engaged with the lead screw 1273, and a second connecting member 1275 is sleeved on the outer periphery of the nut 1274. A connecting sleeve 1221 is rotatably fitted around the outer periphery of the second rotating shaft 122. The connecting sleeve 1221 passes through the second through hole. A second sliding sleeve 1222 is fitted around the outer periphery of the connecting sleeve 1221 and is disposed within the second through hole. One end of the second connecting member 1275 is connected to one end of the connecting sleeve 1221. The second end of the second rotating shaft 122 is accommodated within the through hole 12751 at one end of the second connecting member 1275. The other end of the second connecting member 1275 is slidably fitted around the outer periphery of the support shaft rod 1276, which is disposed outside another winding frame 11. The first motor 1271 drives the lead screw 1273 to rotate via the first reducer 1272, thereby causing the nut 1274 to move back and forth, which in turn causes the second connecting member 1275 to move back and forth. The back and forth movement of the second connecting member 1275 causes the connecting sleeve 1221 to move back and forth relative to the second sliding sleeve 1222, thereby causing the second rotating shaft 122 to move back and forth. The support shaft 1276 provides support for the forward and backward movement of the second connector 1275 to ensure the smoothness of the forward and backward movement of the second connector 1275.

[0042] In this embodiment, two connecting sleeve bearings 1224 are respectively provided at both ends of the connecting sleeve 1221. The two connecting sleeve bearings 1224 are respectively sleeved on the outer periphery of the second rotating shaft 122 to provide rotational support for the second rotating shaft 122. A sliding sleeve fixing seat 1223 is sleeved on the outer periphery of one end of the second sliding sleeve 1222. The sliding sleeve fixing seat 1223 is disposed in the second through hole, and part of the sliding sleeve fixing seat 1223 extends out of the second through hole and is fixed on the inner side of another winding frame 11. Another take-up and unwind frame 11 is provided with a lead screw through hole that passes through its outer and inner sides. The lead screw through hole communicates with the interior of the take-up and unwind frame 11. The lead screw 1273 passes through the lead screw through hole of the other take-up and unwind frame 11. For example, two lead screw bearing seats 12731 are rotatably sleeved on the outer periphery of the lead screw 1273. The two lead screw bearing seats 12731 are respectively disposed in the lead screw through hole of the other take-up and unwind frame 11. The two lead screw bearing seats 12731 extend out of the lead screw through hole of the other take-up and unwind frame 11 and are respectively fixed on the inner and outer sides of the other take-up and unwind frame 11. The two lead screw bearing seats 12731 provide support for the rotation of the lead screw 1273. Understandably, the number of lead screw bearing seats 12731 can be set according to the actual situation. The other end of the second connector 1275 is provided with a through hole. The second connector 1275 is slidably sleeved on the outer periphery of the support shaft 1276 through its through hole. A linear bearing 1277 is provided in the through hole. The linear bearing 1277 is sleeved on the outer periphery of the support shaft 1276. The linear bearing 1277 can ensure the smoothness of the back-and-forth movement of the second connector 1275.

[0043] The rotation drive module 125 includes a second motor 1251, a second reducer 1252, and a transmission assembly. The second reducer 1252 is disposed on the outside of one of the take-up and untake-down frames 11, and the second motor 1251 is disposed on the second reducer 1252. The output end of the second motor 1251 is connected to the input end of the second reducer 1252, and the output end of the second reducer 1252 is connected to the first sliding sleeve 1211 through the transmission assembly. The second motor 1251 is used to drive the first sliding sleeve 1211 to rotate through the second reducer 1252 and the transmission assembly, thereby driving the first rotating shaft 121 to rotate.

[0044] The transmission assembly is a sprocket and chain drive assembly, including a driving sprocket 1253, a driven sprocket 1254, and a chain sleeved around the outer periphery of the driving sprocket 1253 and the driven sprocket 1254. The output end of the second reducer 1252 extends into the interior of one of the take-up / unwinding frames 11. Both the driving sprocket 1253 and the chain are located inside one of the take-up / unwinding frames 11. The driving sprocket 1253 is sleeved around the outer periphery of the output end of the second reducer 1252, and the driven sprocket 1254 is sleeved around the outer periphery of the first sliding sleeve 1211. The second motor 1251 drives the driving sprocket 1253 to rotate through the second reducer 1252. Under the transmission action of the driven sprocket 1253 and the chain, the first sliding sleeve 1211 can be driven to rotate. It is understood that the transmission assembly can also be replaced by a synchronous belt drive assembly.

[0045] In this embodiment, the winding and unwinding frame 11 is provided with a plurality of, for example, three first frame through holes 111 and a plurality of, for example, three second frame through holes 112. The three first frame through holes 111 and the three second frame through holes 112 are arranged sequentially at intervals along the length direction of the winding and unwinding frame 11, and the three second frame through holes 112 are located below the three first frame through holes 111 respectively. There are two take-up and unwind cylinders 1261, which are respectively connected to both ends of the first connecting member 1262. The two take-up assemblies 13 and the first unwind assembly 12 correspond to the three first frame through holes 111. The two take-up and unwind cylinders 1261 of the two take-up assemblies 13 and the first unwind assembly 12 are respectively located on the top of one of the take-up / unwind frames 11 and on the inner wall of the top of the corresponding first frame through hole 111. The two take-up and unwind cylinders 1261 of the second unwind assembly 12 are respectively located on the inner wall of the end of one of the take-up / unwind frames 11 away from the transfer mechanism 20 and the end of the last second frame through hole 112 away from the transfer mechanism 20. In the two take-up assemblies 13 and the first unwind assembly 12, their rotation drive modules 125 are located to the right of their first rotating shaft 121. In the second unwind assembly 12, its rotation drive module 125 is located below its first rotating shaft 121. In the two winding assemblies 13 and the first unwinding assembly 12, the lead screw 1273 and the support shaft 1276 are located to the right of their second rotating shaft 122. In the second unwinding assembly 12, the lead screw 1273 and the support shaft 1276 are located below their second rotating shaft 122. Understandably, the number of winding / unwinding cylinders 1261 can be set according to actual conditions.

[0046] Combination Figure 7 and Figure 8As shown, the transfer mechanism 20 includes two transfer support frames 21 arranged front-to-back and a transfer assembly mounted on the two transfer support frames 21. The transfer support frames 21 are used to install on the workshop floor, and the two transfer support frames 21 provide mounting support for the transfer assembly. The transfer assembly includes two transfer shafts 22 arranged front-to-back and two transfer drive modules 24 corresponding to the two transfer shafts 22 and the two transfer support frames 21, respectively. The two transfer shafts 22 pass through the two transfer support frames 21 and can rotate and move back and forth relative to their respective transfer support frames 21. The first end of one transfer shaft 22 is located between the two transfer support frames 21 and the second end is located in front of the two transfer support frames 21. The first end of the other transfer shaft 22 is located between the two transfer support frames 21 and the second end is located behind the two transfer support frames 21. The first end of each of the two transfer shafts 22 is provided with two transfer clamps 23. Two transfer drive modules 24 are arranged in a front-to-back configuration and are respectively mounted on two transfer support frames 21. The transfer drive modules 24 are used to drive the corresponding transfer shafts 22 to move back and forth, thereby driving the corresponding transfer chucks 23 to move back and forth. The two transfer chucks 23 are respectively used to insert and cooperate with the two ends of the unwinding drum 103 and the take-up drum 104.

[0047] In practical applications, when the unwinding drum 103 of the unwinding coil 101 or the winding drum 104 of the winding coil 102 is positioned between the two transfer chucks 23, one transfer shaft 22 drives the corresponding transfer chuck 23 to move backward, and the other transfer shaft 22 drives the corresponding transfer chuck 23 to move forward. This allows the two transfer chucks 23 to be inserted into both ends of the unwinding drum 103 of the unwinding coil 101 or both ends of the winding drum 104 of the winding coil 102, thus achieving clamping and unwinding... After clamping the unwinding roll 101 or the rewinding roll 102, one of the transfer shafts 22 drives the corresponding transfer chuck 23 to move forward, and the other transfer shaft 22 drives the corresponding transfer chuck 23 to move backward. This allows the two transfer chucks 23 to move out from both ends of the unwinding drum 103 of the unwinding roll 101 or from both ends of the rewinding drum 104 of the rewinding roll 102, thereby releasing the unwinding roll 101 or the rewinding roll 102. When an empty unwinding drum 103 or an empty take-up drum 104 is positioned between the two transfer chucks 23, one transfer shaft 22 drives the corresponding transfer chuck 23 to move backward, and the other transfer shaft 22 drives the corresponding transfer chuck 23 to move forward. This allows the two transfer chucks 23 to be inserted into the two ends of the empty unwinding drum 103 or the two ends of the empty take-up drum 104, thus clamping the empty unwinding drum 103 or the empty take-up drum 104. After clamping an empty unwinding drum 103 or an empty take-up drum 104, the drum 104 drives the corresponding transfer chuck 23 to move forward through one transfer shaft 22 and drives the corresponding transfer chuck 23 to move backward through the other transfer shaft 22. This allows the two transfer chucks 23 to move out from both ends of the empty unwinding drum 103 or from both ends of the empty take-up drum 104, thereby releasing the empty unwinding drum 103 or the empty take-up drum 104.

[0048] In this embodiment, the transfer shaft 22 passes through the transfer through hole of the corresponding transfer support frame 21. A transfer sliding sleeve (not shown in the figure) is sleeved on the outer periphery of the transfer shaft 22, and the transfer sliding sleeve is rotatably disposed within the transfer through hole of the corresponding transfer support frame 21. The transfer drive module 24 includes a transfer cylinder 241 and a transfer connector 242 disposed on the corresponding transfer support frame 21. The transfer connector 242 is rotatably sleeved on the outer periphery of the second end of the corresponding transfer shaft 22, and the output end of the transfer cylinder 241 is connected to the transfer connector 242. The transfer cylinder 241 is used to drive the transfer connector 242 to move back and forth, thereby driving the corresponding transfer shaft 22 to move back and forth.

[0049] In this embodiment, two transfer bearing seats 2211 are respectively fitted around the outer periphery of both ends of the transfer sleeve. The two transfer bearing seats 2211 are respectively disposed in the transfer through holes of the corresponding transfer support frame 21. Parts of the two transfer bearing seats 2211 extend out from the corresponding transfer through holes and are respectively fixed to the outer and inner sides of the corresponding transfer support frame 21. The two transfer bearing seats 2211 provide rotational support for the transfer sleeve.

[0050] The transfer connector 242 is provided with a mounting hole, and a connector bearing seat 222 is provided in the mounting hole of the transfer connector 242. The two ends of the connector bearing seat 222 protrude from both sides of the transfer connector 242 respectively, and the connector bearing seat 222 is rotatably sleeved on the outer periphery of the second end of the transfer shaft 22.

[0051] There are two transfer cylinders 241, which are respectively installed at both ends of the corresponding transfer support frame 21. The output ends of the two transfer cylinders 241 are respectively connected to both ends of the transfer connector 242. Understandably, the number of transfer cylinders 241 can be set according to the actual situation.

[0052] Combination Figures 9 to 12 As shown, the lifting platform 30 is located between two take-up / unwinding frames 11 and two transfer support frames 21. The lifting platform 30 can move left and right to transfer the unwinding roll 101, take-up roll 102, unwinding drum 103, and take-up drum 104 between the take-up / unwinding mechanism 10 and the transfer mechanism 20. The lifting platform 30 can accommodate chucks of different heights. The guide rail 40 is located between the bottom ends of the two take-up / unwinding frames 11 and the bottom ends of the two transfer support frames 21. One end of the guide rail 40 protrudes from the end of the two transfer support frames 21 away from the take-up / unwinding mechanism 10, and the other end of the guide rail 40 protrudes from the end of the two take-up / unwinding frames 11 away from the transfer mechanism 20. The bottom end of the lifting platform 30 is provided with a sliding block 311 that slides with the guide rail 40. The platform drive mechanism 50 is used to drive the lifting platform 30 to move left and right along the guide rail 40. The guide rail 40 and sliding block 311 ensure that the lifting platform 30 moves in a straight line and improve the stability of the movement of the lifting platform 30.

[0053] In this embodiment, there are two guide rails 40, which are arranged opposite each other and respectively mounted on the top of two fixed plates 60. The two fixed plates 60 are used to mount the guide rails on the workshop floor. The number of sliding blocks 311 corresponds to the number of guide rails 40. It can be understood that the number of guide rails 40 and sliding blocks 311 can be set according to the actual situation.

[0054] The lifting platform 30 includes a lower frame 31, an upper frame 32 located above the lower frame 31, a lifting assembly 33 connecting the lower frame 31 and the upper frame 32, a roll material support assembly 34 for receiving unwound roll 101 and rewound roll 102, and a drum support assembly 35 for receiving empty unwound drum 103 and empty rewound drum 104. The lower frame 31 has a lower frame through cavity 31a extending along its height direction, and the upper frame 32 has an upper frame through cavity 32a extending along its height direction. The bottom end of the lower frame 31 is provided with the aforementioned sliding block 311, and the lower frame 31 can move left and right along the guide rail 40. The platform drive mechanism 50 is used to drive the lower frame 31 to move left and right along the guide rail 40. The lifting assembly 33 is used to drive the upper frame 32 to move up and down. The drum support assembly 35 and the roll material support assembly 34 are arranged at left and right intervals. The upper frame 31 has two frame support plates 322 arranged opposite each other at its top ends. Both the coil support assembly 34 and the drum support assembly 35 include two support modules arranged opposite each other, located at the two ends of the upper frame 32, with each module positioned at the top of one of the frame support plates 322. The left-right movement of the lower frame 31 moves the lifting assembly 33, the upper frame 32, the coil support assembly 34, and the drum support assembly 35 left-right. The up-down movement of the upper frame 32 moves the coil support assembly 34 and the drum support assembly 35 up-down. In practical applications, the distance between the two frame support plates 322 is greater than the length of the unwound coil 101 and the rewound coil 102. The lifting assembly 33 drives the upper frame 32, the coil support assembly 34, and the drum support assembly 35 up-down, thus adapting to chucks of different heights and providing good compatibility. The upper frame through cavity 32a is configured such that when the unwinding coil 101 or the rewinding coil 102 is placed on the coil support assembly 34, part of the unwinding coil 101 or the rewinding coil 102 is located inside the upper frame through cavity 32a. This design can reduce the height of the coil support assembly 34, thereby reducing the height of the lifting platform 30.

[0055] In this embodiment, the two support modules of the roll support assembly 34 are respectively located at the middle positions of both ends of the upper frame 32. When the unwound roll 101 or the rewound roll 102 is placed on the roll support assembly 34, the center of gravity of the unwound roll 101 or the rewound roll 102 and the center of the lifting platform 30 are located on the same vertical line, which can avoid the lifting platform 30 from tipping over.

[0056] The platform drive mechanism 50 includes a platform motor 51, a platform reducer 52, two horizontal rotating shafts 53, two commutators 54, two vertical rotating shafts 55, and two racks 57 arranged in a front-to-back configuration. The platform reducer 52 and the two commutators 54 are respectively mounted on one side of the lower frame 31, for example, the right side, via a base. The platform motor 51 is mounted on the platform reducer 52, and the output end of the platform motor 51 is connected to the input end of the platform reducer 52. The platform reducer 52 is a T-type reducer. The platform reducer 52 is located between the two horizontal rotating shafts 53. One end of each horizontal rotating shaft 53 is connected to the two output ends of the platform reducer 52, and the other end of each horizontal rotating shaft 53 is connected to the input ends of the two commutators 54. Two vertical rotating shafts 55 are located below the two commutators 54. One end of each shaft is connected to the output end of the commutator 54, and the other end extends downwards and is equipped with two gears 56. Each gear 56 meshes with a rack 57. The racks 57 are located between the bottom ends of the two take-up / unwinding frames 11 and the bottom ends of the two transfer support frames 21. One end of each rack protrudes from the end of the transfer support frame 21 away from the take-up / unwinding mechanism 10, and the other end protrudes from the end of the two take-up / unwinding frames 11 away from the transfer mechanism 20. Two guide rails 40 are located between the two racks 57, and the length of each rack 57 is adapted to the length of the guide rails 40. The racks 57 are respectively positioned at the top of the two fixed plates 60. The lower frame 31 is located between the two racks 57. The platform motor 51 drives two horizontal rotating shafts 53 to rotate via the platform reducer 52, which in turn drives two vertical rotating shafts 55 to rotate via two commutators 54, which in turn drives two gears 56 to rotate. Under the action of the two gears 56 meshing with the two racks 57 respectively, the two gears 56 can move left and right along the two racks 57 respectively. The left and right movement of the two racks 57 can drive the two vertical rotating shafts 55, the two commutators 54, the two horizontal rotating shafts 53, the platform reducer 52, the platform motor 51, and the lower frame 31 to move left and right, which in turn can drive the lifting assembly 33, the upper frame 32, the coil support assembly 34, and the barrel support assembly 35 to move left and right.

[0057] The lifting assembly 33 includes a scissor bracket and a bracket drive component 335. The scissor bracket includes two lower linkage groups arranged in a front-to-back orientation and two upper linkage groups arranged in a front-to-back orientation, with the two upper linkage groups corresponding to the two lower linkage groups respectively.

[0058] The lower linkage assembly includes a first linkage 331 and a second linkage 332. The first linkage 331 and the second linkage 332 are hinged together in an X shape via a hinge shaft. The lower frame through cavity 31a is provided with a first lower support rod 312a and a second lower support rod 312b. The second lower support rod 312b and the first lower support rod 312a are arranged at left and right intervals. The inner walls of the two ends of the through cavity 31a of the lower frame are respectively provided with two lower mounting grooves 31b. The two ends of the first lower support rod 312a and the second lower support rod 312b extend into the two lower mounting grooves 31b respectively. The two ends of the first lower support rod 312a are respectively set on the bottom of the two lower mounting grooves 31b, specifically in the mounting holes at the bottom of the two lower mounting grooves 31b respectively. The two ends of the second lower support rod 312b are close to the bottom of the two lower mounting grooves 31b respectively. This structure can limit the two ends of the second lower support rod 312b and prevent the second lower support rod 312b from moving out of the through cavity 31a of the lower frame. The first end of the first connecting rod 331 and the first end of the second connecting rod 332 respectively extend into the through cavity 31a of the lower frame and are rotatably fitted around the outer periphery of the first lower support rod 312a and the outer periphery of the second lower support rod 312b respectively. In this embodiment, the first end of the first connecting rod 331 and the first end of the second connecting rod 332 are respectively provided with a first lower hole. The first end of the first connecting rod 331 and the first end of the second connecting rod 332 are rotatably fitted around the outer periphery of the first lower support rod 312a and the outer periphery of the second lower support rod 312b respectively through their respective first lower holes. A first middle support rod 313a and a second middle support rod 313b are provided between the lower frame 31 and the upper frame 32. The second middle support rod 313b and the first middle support rod 313a are arranged at left and right intervals. The first middle support rod 313a corresponds to the first lower support rod 312a, and the second middle support rod 313b corresponds to the second lower support rod 312b. The second end of the first connecting rod 331 is rotatably sleeved on the outer periphery of the second intermediate support rod 313b, and the second end of the second connecting rod 332 is rotatably sleeved on the outer periphery of the first intermediate support rod 313a. In this embodiment, the second ends of the first connecting rod 331 and the second ends of the second connecting rod 332 are respectively provided with first upper holes. The second ends of the first connecting rod 331 and the second ends of the second connecting rod 332 are rotatably sleeved on the outer periphery of the second intermediate support rod 313b and the outer periphery of the first intermediate support rod 313a through their respective first upper holes.

[0059] The upper linkage assembly includes a third link 333 and a fourth link 334, which are hinged together in an X-shape via a hinge shaft. The first end of the third link 333 and the first end of the fourth link 334 are rotatably fitted around the outer periphery of the first middle support rod 313a and the second middle support rod 313b, respectively. In this embodiment, the first end of the third link 333 and the first end of the fourth link 334 are respectively provided with a second lower hole, which allows them to be rotatably fitted around the outer periphery of the first middle support rod 313a and the second middle support rod 313b. The first end of the third link 333 is close to the second end of the corresponding second link 332 of the lower linkage assembly. In this embodiment, the second end of the second link 332 is located between the first end of the corresponding third link 333 of the upper linkage assembly and the center of the lower frame through cavity 31a. The first end of the fourth link 334 is close to the second end of the first link 331 of the corresponding lower link group. In this embodiment, the first end of the fourth link 334 is located between the second end of the first link 331 of the corresponding lower link group and the center of the through cavity 31a of the lower frame.

[0060] The upper frame through cavity 32a is provided with a first upper support rod 321a and a second upper support rod 321b. The second upper support rod 321b and the first upper support rod 321a are arranged at left and right intervals. The first upper support rod 321a corresponds to the first middle support rod 313a, and the second upper support rod 321b corresponds to the second middle support rod 313b. The inner walls at both ends of the upper frame through cavity 32a are respectively provided with two upper mounting grooves 32b. The first upper support rod 313a and the second upper support rod 313b Both ends of the first upper support rod 313a extend into the two upper mounting slots 32b respectively. The two ends of the first upper support rod 313a are respectively set on the bottom of the two upper mounting slots 32b, specifically in the mounting holes at the bottom of the two upper mounting slots 32b. The two ends of the second upper support rod 313b are close to the bottom of the two upper mounting slots 32b respectively. This structure can limit the two ends of the second upper support rod 313b and prevent the second upper support rod 313b from moving out of the through cavity 32a of the upper frame. The second end of the third link 333 and the second end of the fourth link 334 extend into the through cavity 32a of the upper frame and are rotatably fitted onto the outer periphery of the second upper support rod 321b and the outer periphery of the first upper support rod 321a, respectively. In this embodiment, the second end of the third link 333 and the second end of the fourth link 334 are respectively provided with a second upper hole. The second end of the third link 333 and the second end of the fourth link 334 are rotatably fitted onto the outer periphery of the second upper support rod 321b and the outer periphery of the first upper support rod 321a, respectively, through their respective second upper holes.

[0061] The bracket drive component 335 is located between the first middle support rod 313a and the second middle support rod 313b. The bracket drive component 335 is hinged to the first middle support rod 313a, and its output end is hinged to the second middle support rod 313b. The bracket drive component 335 drives the second middle support rod 313a to move left and right, thereby causing the first link 331 and the second link 332 of the two lower link groups to rotate around their hinge point. This, in turn, causes the third link 333 and the fourth link 334 of the two upper link groups to rotate around their hinge point, thereby causing the upper frame 32 to move downward and upward. Simultaneously, the rotation of the third link 333 and the fourth link 334 of the two upper link groups around their hinge point, and the rotation of the first link 331 and the second link 332 of the two lower link groups around their hinge point, can drive the first middle support rod 313a, the second middle support rod 313b, and the bracket drive component 335 to move downward or upward.

[0062] In this embodiment, there are two support drive components 335, which are arranged at a distance from each other and are close to the two lower connecting rod groups and the two upper connecting rod groups, respectively. The support drive component 335 is a hydraulic cylinder. Understandably, the support drive component 335 can also be other types, such as an electric cylinder, an electric lead screw, etc.

[0063] Combination Figures 12 to 19 As shown, the support module includes a mounting plate 341, a support base 342, and a support block 344. The mounting plates 341 of the two support modules are respectively disposed at both ends of the upper frame 32, and the mounting plates 341 partially protrude from the top of the frame support plate 322. The top and one end of the support base 342 are open. The support bases 342 of the two support modules are respectively placed on the top of the two frame support plates 322, and one end of the support base 342 is installed on one side of the mounting plate 341. The support block 344 is disposed at the other end of the support base 342. The top of the support block 344 is provided with a placement groove 3441. In actual application, the two ends of the unwinding drum 103 or the take-up drum 104 can be placed at the bottom of the placement grooves 3441 of the two support modules respectively. The top end of the support base 342 near the support block 344 is provided with a clearance groove 3421, which corresponds to the placement groove 3441. The clearance slots 3421 of the two support modules are used to allow clearance at both ends of the unwinding drum 103 or the take-up drum 104. Both the placement slot 3441 and the clearance slot 3421 are inverted trapezoidal structures.

[0064] In this embodiment, two pads 3442 are respectively provided on the inner walls of the two sides of the placement groove 3441, which are arranged opposite each other. When the two ends of the unwinding drum 103 or the winding drum 104 are respectively placed at the bottom of the placement groove 3441 of the two support modules, the two pads 3442 of the two support modules contact the outer peripheral surfaces of the two ends of the unwinding drum 103 or the winding drum 104 to play a supporting and anti-slip role. The top of the support base 342 is provided with two blocks 3422 arranged opposite each other. The clearance groove 3421 is located between the two blocks 3422. The ends of the two blocks 3422 near the clearance groove 3421 extend into the clearance groove 3421. When the two ends of the unwinding drum 103 or the take-up drum 104 are respectively placed at the bottom of the placement groove 3441 of the two support modules, the ends of the two blocks 3422 near the clearance groove 3421 respectively abut against the corresponding ends of the unwinding drum 103 or the take-up drum 104, thereby positioning the unwinding drum 103 or the take-up drum 104.

[0065] The support block 344 is slidably disposed at the other end of the support base 342 and can move up and down relative to the support base 342. In this embodiment, two grooves 3424 are respectively provided on both sides of the other end of the support base 342. The bottom of the groove 3424 is provided with a support base slide rail 3425. The support base slide rail 3425 is slidably engaged with a support base slider 3426. The support base slider 2426 is disposed at the end of the support block 344 near the support base 342.

[0066] The support module also includes a pushing structure, which comprises a support shaft 347 and a pushing cylinder 346. A vertical plate 3412 is provided at the bottom of the support base 342, and is positioned on one side of the mounting plate 341. The support shaft 347 is located within the support base 342, with one end rotatably mounted on the vertical plate 3412. The other end of the support shaft 347 passes through a first through hole at the other end of the support base 342 and is located within a rectangular accommodating cavity 3443 of the support block 344. A cam 3471 is fitted around the outer periphery of the other end of the support shaft 347, and is located within the accommodating cavity 3443. The pushing cylinder 346 is tilted upwards and positioned within the support base 342. A portion of the pushing cylinder 346 extends from a second through hole 3423 on one side of the support base 342, and the output end of the pushing cylinder 346 is connected to the pushing block 3472 fitted around the outer periphery of the support shaft 347. In this embodiment, the support module located at the front has a second through hole 3423 on the right side of its support base 342, and the support module located at the rear has a second through hole 3423 on the left side of its support base 342. The push cylinder 346 drives the push block 3472 to rotate around the axis of the support shaft 347, thereby causing the support shaft 347 to rotate, which in turn causes the cam 3471 to rotate. In this embodiment, in the initial position, the protrusion 34711 of the cam 3471 of the front support module is located to the right of its support shaft 347, and the protrusion 34711 of the cam 3471 of the rear support module is located to the left of its support shaft 347. When the push cylinder 346 drives the push block 3472 to rotate clockwise around the axis of the support shaft 347, the push block 3472 can drive the support shaft 347 to rotate clockwise, thereby driving the cam 3471 to rotate clockwise. When the cam 3471 abuts against the inner wall of the top of the accommodating cavity 3443, as the cam 3471 continues to rotate, the protrusion 34711 of the cam 3471 can drive the support block 344 to move upward until the support block 344 reaches the highest position. Then, the push cylinder 346 drives the push block 3472 to rotate counterclockwise around the axis of the support shaft 347. Thus, the push block 3472 can drive the support shaft 347 and the cam 3471 to rotate counterclockwise. During the rotation of the cam 3471, it can move downward relative to the support seat 342 under the gravity of the support block 344. When the protrusion 34711 of the cam 3471 separates from the inner wall of the top of the accommodating cavity 3443, the support seat 342 moves downward to the initial position, that is, the lowest position.

[0067] In this embodiment, the vertical plate 3412 is provided with vertical plate through holes 34121 extending through both sides. One end of the supporting shaft 347 is rotatably disposed in the through hole 34121 of the vertical plate 3412 via the vertical plate bearing 3412. A supporting bearing 3433 is provided in the first through hole at the other end of the supporting seat 342. The supporting bearing 3433 is sleeved on the outer periphery of the supporting shaft 347 to provide rotational support for the supporting shaft 347.

[0068] The push cylinder 346 is mounted at the bottom of the support base 342 via a cylinder seat 3461. A push rod 34721 is provided on the outer circumferential surface of the push block 3472, and the output end of the push cylinder 346 is connected to the end of the push rod 34721. The push cylinder 346 drives the push rod 34721 to rotate around the axis of the support shaft 347, thereby causing the push block 3472 to rotate around the axis of the support shaft 347.

[0069] One end of the support base 342 is detachably mounted on one side of the mounting plate 341. Specifically, one end of the support base 342 is provided with a round screw hole, and one side of the mounting plate 341 is provided with a waist hole 3411 corresponding to the round screw hole (the waist hole 3411 is a through hole with semicircles at both ends and a rectangle in the middle). The waist hole 3411 extends to the other side of the mounting plate 341. The length direction of the waist hole 3411 is the same as the height direction of the mounting plate 341. The round screw hole is a threaded hole. The first fastener is installed in the internal threads of the round screw hole and the corresponding waist hole 3411. The number of round screw holes, waist holes 3411 and the first fastener can be set according to the actual situation.

[0070] Both the barrel support assembly 35 and the coil support assembly 34 include two adjusting modules arranged in a front-to-back configuration. These two adjusting modules correspond to the two support modules and the two frame support plates 322, respectively. Each adjusting module includes an adjusting block 348. The adjusting blocks 348 of the two adjusting modules are located within two upper mounting slots 32b and below the two frame support plates 322, respectively. The adjusting blocks 348 are threaded with a second fastener and a third fastener. The top of the upper frame 32 has a first screw hole corresponding to the second fastener, which communicates with the corresponding upper mounting slot 32b. The end of the second fastener passes through the first screw hole and the second screw hole of the corresponding frame support plate 322, and abuts against the bottom of the corresponding support base 342. The second fastener is threadedly connected to the first and second screw holes. The ends of the third fasteners of the two adjusting modules abut against the bottom of the two upper mounting slots 32b, respectively. The number of second fasteners, adjusting blocks 348, third fasteners, first screw holes, and second screw holes can be set according to actual conditions. This structure allows for adjustment of the height of the support base 342, which in turn allows for adjustment of the height of the support block 344. When the two ends of the unwinding drum 103 are placed at the bottom of the placement slots 3421 of the two support modules, the support blocks 344 of the two support modules move the unwinding drum 103 upward to a predetermined position, ensuring that the height of the unwinding drum 103 corresponds to the height of the first chuck 123, the second chuck 124, and the two intermediate chucks 23 of the unwinding assembly 12. Similarly, when the two ends of the take-up drum 104 are placed at the bottom of the placement slots 3421 of the two support modules, the support blocks 344 of the two support modules move the take-up drum 104 upward to a predetermined position, ensuring that the height of the take-up drum 104 corresponds to the height of the first chuck 123, the second chuck 124, and the two intermediate chucks 23 of the take-up assembly 12. If, in the initial position, the first fastener is located in the middle of the waist hole 3411, when the height of the support block 344 needs to be increased, first loosen the first fastener, then move the support base 342, support block 344, support shaft 347, and push cylinder 346 upwards as a whole. After moving to the appropriate position, tighten the first fastener, and then tighten the second fastener so that the end of the second fastener abuts against the bottom end of the corresponding support base 342. When the height of the support block 344 needs to be decreased, first loosen the first fastener, then tighten the corresponding second fastener so that the end of the second fastener separates from the bottom end of the corresponding support base 342. Then move the support base 342, support block 344, support shaft 347, and push cylinder 346 downwards as a whole. After moving to the appropriate position, tighten the first fastener, and then tighten the corresponding second fastener so that the end of the second fastener abuts against the bottom end of the corresponding support base 342.

[0071] In this embodiment, the first fastener includes a first screw 361, which is threadedly installed in a round screw hole and a slotted hole 3411. A first locking nut 3611 is threadedly fitted onto the first screw 361, and the first locking nut 3611 abuts against the other side of the corresponding mounting plate 341 to lock the first screw 361 and the corresponding mounting plate 341 together. The second fastener includes a second screw 362, and the third fastener includes a third screw 363. The adjusting block 348 has a first threaded hole corresponding to the second screw 362 and a second threaded hole corresponding to the third screw 363. The second screw 362 is threadedly installed in the first threaded hole, and the third screw 363 is threadedly installed in the second threaded hole. The second screw 362 and the third screw 363 are respectively threaded with a second locking nut 3621 and a third locking nut 3631. The second locking nut 3621 abuts against the bottom end of the adjusting block 348 to lock the second screw 362 and the adjusting block 348 together. The third locking nut 3631 abuts against one side of the adjusting block 348 to lock the third screw 363 and the adjusting block 348 together.

[0072] With the above structure, in practical application, taking the unwinding assembly 12 and the rewinding assembly 13 located on the left as examples, after the substrate of the unwound roll 101 on the unwinding assembly 12 is unwound and only an empty unwinding drum 103 remains, the two transfer cylinders 241 first drive the two transfer chucks 23 to move in opposite directions, that is, the transfer chuck 23 located in front moves forward and the transfer chuck 23 located in the rear moves backward. Then, the AGV vehicle drives the unwound roll 101 to move to the right to the two transfer supports. The unwinding coil 101 is positioned between the two transfer support frames 21, with both ends of the unwinding drum 103 corresponding to the two transfer chucks 23. Then, two transfer cylinders 241 drive the two transfer chucks 23 to move towards each other—the front transfer chuck 23 moves backward and the rear transfer chuck 23 moves forward—so that the two transfer chucks 23 are respectively inserted into both ends of the unwinding drum 103 of the unwinding coil 101. Thus, the unwinding coil 101 is removed from the AGV, and the AGV moves out between the two transfer support frames 21. Then, the platform drive mechanism 50 drives the lifting platform 30 to move to the left between the two transfer support frames 21, positioning the coil support assembly 34 below the unwinding coil 101. Then, the lifting assembly 33 drives the coil support assembly 34 to move upward to a predetermined position. Then, the cams 3471 of the two support modules of the coil support assembly 34 drive the corresponding support blocks 344 to move upward to the predetermined positions. At this time, both ends of the unwinding drum 103 of the unwinding coil 101 are respectively placed at the bottom of the placement slots 3441 of the two support modules of the coil support assembly 34, and the unwinding coil 101 is partially located within the through cavity 32a of the upper frame. Then, the two transfer cylinders 241 drive the two transfer chucks 23 to move in opposite directions, so that the two transfer chucks 23 are removed from both ends of the unwinding drum 103 of the unwinding coil 101, thus placing the unwinding coil 101 on the lifting platform 30. Then, the support blocks 344 of the two support modules of the coil support assembly 34 drive the unwinding coil 101 downward to the initial position. Then, the platform drive mechanism 50 drives the lifting platform 30 to move to the right between the two take-up and unwinding frames 21, and positions the drum support assembly 35 below the first chuck 123 and the second chuck 124 of the unwinding assembly 12. Then, the lifting assembly 33 drives the drum support assembly 35 to move upward to a predetermined position. Then, the cams 3471 of the two support modules of the drum support assembly 35 drive the corresponding support blocks 344 to move upward to the predetermined positions. At this time, the two ends of the empty unwinding drum 103 on the first chuck 123 and the second chuck 124 of the unwinding assembly 12 are respectively placed at the bottom of the placement slots 3441 of the two support modules of the drum support assembly 35.Then, the first take-up / unwinding drive module 126 and the second take-up / unwinding drive module 127 of the unwinding assembly 12 drive the first chuck 123 of the unwinding assembly 12 to move forward and the second chuck 124 to move backward, respectively, so that the first chuck 123 and the second chuck 124 of the unwinding assembly 12 move out from both ends of the empty unwinding drum 103. In this way, the empty unwinding drum 103 on the unwinding assembly 12 is removed from the first rotating shaft 121 and the second rotating shaft 122 of the unwinding assembly 12 and placed on the lifting platform 30. Then, the support blocks 344 of the two support modules of the drum support assembly 35 drive the empty unwinding drum 103 to move downward to the initial position. Then, the platform drive mechanism 50 drives the lifting platform 30 to move to the left, so that the unwound roll 101 on the roll support assembly 34 is located between the first chuck 123 and the second chuck 124 of the unwinding assembly 12. Then, the cams 3471 of the two support modules of the roll material support assembly 34 drive the corresponding support blocks 344 to move upward to the predetermined position. At this time, the unwinding drum 103 of the unwinding roll 101 corresponds to the first chuck 123 and the second chuck 124 of the unwinding assembly 12. Then, the first take-up and unwinding drive module 126 and the second take-up and unwinding drive module 127 of the unwinding assembly 12 drive the first chuck 123 of the unwinding assembly 12 to move backward and the second chuck 124 to move forward, so that the first chuck 123 and the second chuck 124 are respectively inserted into the two ends of the unwinding drum 103 of the unwinding roll 101. In this way, the unwinding roll 101 is removed from the lifting platform 30 and installed on the first rotating shaft 121 and the second rotating shaft 122 of the unwinding assembly 12. Then, the support blocks 344 of the two support modules of the roll material support assembly 34 move downward to the initial position. After unwinding and splicing, the first rotating shaft 121 and the first chuck 123 of the unwinding assembly 12 are driven to rotate by the rotation drive module 125 of the unwinding assembly 12, thereby driving the unwound material 101, the second rotating shaft 122 and the second chuck 124 of the unwinding assembly 12 to rotate, thus realizing the unwinding of the substrate of the unwound material 101. Then, the material cylinder support assembly 35 and the empty unwinding drum 103 are driven to move downward to the initial position by the lifting assembly 33. Then, the lifting platform 30 is driven to move to the left between the two transfer support frames 21 by the platform drive mechanism 50. At this time, the empty unwinding drum 103 is located below the two transfer chucks 23. Then, the lifting assembly 33 drives the drum support assembly 35 and the empty unwinding drum 103 to move upward to a predetermined position. Then, the cams 3471 of the two support modules of the drum support assembly 35 respectively drive the corresponding support blocks 344 and the empty unwinding drum 103 to move upward to the predetermined position. At this time, the empty unwinding drum 103 corresponds to the two transfer chucks 23. Then, the two transfer cylinders 241 respectively drive the two transfer chucks 23 to move towards each other, so that the two transfer chucks 23 are respectively inserted into the two ends of the empty unwinding drum 103. Thus, the empty unwinding drum 103 is removed from the lifting platform 30.Then, the support blocks 344 of the two support modules of the barrel support assembly 35 move downward to the initial position. Then, the barrel support assembly 35 is driven downward to the initial position by the lifting assembly 33. Then, the lifting platform 30 is driven to move to the right to the initial position by the platform drive mechanism 50. Then, the AGV moves to the right between the two transfer support frames 21. At this time, the empty unwinding drum 103 on the two transfer chucks 23 is placed on the AGV. Then, the two transfer cylinders 241 drive the two transfer chucks 23 to move in opposite directions, so that the two transfer chucks 23 are removed from both ends of the empty unwinding drum 103. Thus, the empty unwinding drum 103 is placed on the AGV. Then, the AGV can move the empty unwinding drum 103 to the unwinding storage station.

[0073] After the substrate is wound into a coil 102 by the take-up drum 104 on the take-up assembly 13, the two transfer cylinders 241 drive the two transfer chucks 23 to move in opposite directions. Then, the AGV moves the empty take-up drum 104 to the right between the two transfer chucks 23, at which point the empty take-up drum 104 corresponds to the two transfer chucks 23. Then, the two transfer cylinders 241 drive the two transfer chucks 23 to move towards each other, so that the two transfer chucks 23 are inserted into the two ends of the empty take-up drum 104, thus removing the empty take-up drum 104 from the AGV. The AGV then moves out from between the two transfer support frames 21. Then, the platform drive mechanism 50 drives the lifting platform 30 to move between the two transfer support frames 21, at which point the drum support assembly 35 is located below the empty take-up drum 104. Then, the lifting assembly 33 drives the drum support assembly 35 upward to a predetermined position. Then, the cams 3471 of the two support modules of the drum support assembly 35 drive the corresponding support blocks 344 upward to the predetermined positions. At this point, the two ends of the empty take-up drum 104 are respectively placed at the bottom of the placement slots 3441 of the two support modules of the drum support assembly 35. Then, the two transfer cylinders 241 drive the two transfer chucks 23 to move in opposite directions, so that the two transfer chucks 23 move out from the two ends of the empty take-up drum 104, thus placing the empty take-up drum 104 on the lifting platform 30. Then, the support blocks 344 of the two support modules of the drum support assembly 35 drive the empty take-up drum 104 downward to the initial position. Then, the platform drive mechanism 50 drives the lifting platform 30 to move to the right between the two take-up and unwinding frames 21, and positions the roll support assembly 34 below the first chuck 123 and the second chuck 124 of the take-up assembly 13. Then, the lifting assembly 33 drives the coil support assembly 34 to move upward to a predetermined position. Then, the cams 3471 of the two support modules of the coil support assembly 33 drive the corresponding support blocks 344 to move upward to the initial position. At this time, the two ends of the take-up drum 104 of the take-up coil 102 on the take-up assembly 13 are respectively placed at the bottom of the placement slots 3441 of the two support modules of the coil support assembly 34. Then, the first take-up and untake-up drive module 126 and the second take-up and untake-up drive module 127 of the take-up assembly 13 drive the first chuck 123 of the take-up assembly 13 to move forward and the second chuck 124 to move backward, so that the first chuck 123 and the second chuck 124 of the take-up assembly 13 are removed from the two ends of the take-up drum 104 of the take-up coil 102. In this way, the take-up coil 102 on the first rotating shaft 121 and the second rotating shaft 122 of the take-up assembly 13 is placed on the lifting platform 30. Then, the platform drive mechanism 50 drives the lifting platform 30 to move to the right so that the empty take-up drum 104 on the drum support assembly 35 is located between the first chuck 123 and the second chuck 124 of the take-up assembly 13.Then, the cams 3471 of the two support modules of the drum support assembly 35 drive the corresponding support blocks 344 upward to the predetermined position. At this time, the empty take-up drum 104 corresponds to the first chuck 123 and the second chuck 124 of the take-up assembly 13. Then, the first take-up and untake-up drive modules 126 and 127 of the take-up assembly 13 drive the first chuck 123 of the take-up assembly 13 to move backward and the second chuck 124 to move forward, so that the first chuck 123 and the second chuck 124 are respectively inserted into the two ends of the empty take-up drum 104. In this way, the empty take-up drum 104 is removed from the lifting platform 30 and installed on the first rotating shaft 121 and the second rotating shaft 122 of the take-up assembly 13. Then, the support blocks 344 of the two support modules of the drum support assembly 35 move downward to the initial position. After the winding assembly is completed, the first rotating shaft 121 and the first chuck 123 of the winding assembly 13 are driven to rotate by the rotation drive module 125 of the winding assembly 13. This drives the empty winding drum 104, the second rotating shaft 122 and the second chuck 124 of the winding assembly 13 to rotate, thus enabling the winding of the coated substrate through the empty winding drum 104. Then, the material support assembly 35, the winding roll 102 and the roll support assembly 34 are driven to move downward to the initial position by the lifting assembly 33. Then, the lifting platform 33 is driven to move to the left between the two transfer support frames 21 by the platform drive mechanism 50. At this time, the winding roll 102 is located below the two transfer chucks 23. Then, the lifting assembly 33 drives the coil support assembly 35 and the take-up coil 102 to move upward to a predetermined position. Then, the cams 3471 of the two support modules of the coil support assembly 35 drive the corresponding support blocks 344 to move upward to the predetermined position. At this point, the take-up drum 104 of the take-up coil 102 corresponds to the two transfer chucks 23. Then, the two transfer cylinders 241 drive the two transfer chucks 23 to move towards each other, so that the two transfer chucks 23 are respectively inserted into the two ends of the take-up drum 104 of the take-up coil 102, thus removing the take-up coil 102 from the lifting platform 30. Then, the support blocks 344 of the two support modules of the coil support assembly 34 move downward to the initial position. Then, the lifting assembly 33 drives the coil support assembly 34 to move downward to the initial position. Then, the platform drive mechanism 50 drives the lifting platform 30 to move to the right to the initial position. The AGV then moves to the right between the two transfer support frames 21, at which point the winding material 102 on the transfer assembly is placed on the AGV. Then, two transfer cylinders 241 drive the two transfer chucks 23 to move in opposite directions, causing them to exit from both ends of the winding drum 104 of the winding material 102, thus placing the winding material 102 on the AGV. The AGV then moves the winding material 102 to the winding storage station.

[0074] This utility model features a winding and unwinding mechanism 10, a transfer mechanism 20, and a lifting platform 30. The winding and unwinding mechanism 10 includes an unwinding assembly 12 and a winding assembly 13. The transfer mechanism 20 includes a transfer assembly. After the substrate of the unwound material 101 on the unwinding assembly 12 is unwound, leaving only an empty unwinding drum 103, the empty unwinding drum 103 can be automatically removed from the first rotating shaft 121 and the second rotating shaft 122 of the unwinding assembly 12 and transferred to an AGV vehicle. New unwound material 101 transferred by the AGV vehicle can also be automatically installed on the first rotating shaft 121 and the second rotating shaft 122 of the unwinding assembly 12. After the winding drum 104 on the winding assembly 13 has finished winding the coated substrate to form a wound material 102, the winding can be automatically... Material 102 is removed from the first shaft 121 and the second shaft 122 of the winding assembly 13 and transferred to the AGV vehicle. Empty winding drum 104, which is transferred by the AGV vehicle, can be automatically installed on the first shaft 121 and the second shaft 122 of the winding assembly 13. This enables automatic roll changing, which saves production time, improves production efficiency, and reduces production costs compared to the existing manual method. Furthermore, by integrating the unwinding assembly 12 and the winding assembly 13 together, only one AGV vehicle is needed, eliminating the need for two, further reducing production costs. At the same time, since the roll changing device is located at the head of the coating production line, the AGV vehicle does not need to travel from one side of the coating production line, improving the utilization rate of workshop space.

[0075] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A roll changing device, characterized in that, include: The unwinding and winding mechanism includes two unwinding and winding frames arranged in a front-to-back configuration, an unwinding assembly, and a winding assembly. Both the unwinding and winding assemblies include a first rotating shaft and a second rotating shaft arranged in a front-to-back configuration. The first rotating shaft passes through one of the unwinding and winding frames and is rotatable and movable back-to-back relative to that frame. A first end of the first rotating shaft is located between the two unwinding and winding frames and is provided with a first clamp. A second end of the first rotating shaft is located in front of the two unwinding and winding frames. The second rotating shaft passes through the other unwinding and winding frame and is rotatable and movable back-to-back relative to that frame. A first end of the second rotating shaft is located between the two unwinding and winding frames and is provided with a second clamp. A second end of the second rotating shaft is located behind the two unwinding and winding frames. The transfer mechanism and the winding / unwinding mechanism are arranged side-by-side. The transfer mechanism includes two transfer support frames and a transfer assembly arranged front-to-back. The transfer assembly includes two transfer shafts arranged front-to-back. The two transfer shafts pass through the two transfer support frames and can rotate and move back and forth relative to their respective transfer support frames. The first end of one transfer shaft is located between the two transfer support frames and the second end is located in front of the two transfer support frames. The first end of the other transfer shaft is located between the two transfer support frames and the second end is located behind the two transfer support frames. The first ends of the two transfer shafts are respectively provided with two transfer clamps. The lifting platform is located between two unwinding and winding frames and two transfer support frames. The lifting platform can move left and right to transfer unwinding rolls, winding rolls, unwinding drums and winding drums between the unwinding and winding mechanism and the transfer mechanism. The lifting platform can be adapted to chucks of different heights.

2. The roll changing device according to claim 1, characterized in that, Both the unwinding assembly and the winding assembly include a rotation drive module, a first winding / unwinding drive module, and a second winding / unwinding drive module. The rotation drive module is mounted on one of the winding / unwinding frames and is used to drive the first rotating shaft to rotate. The first winding / unwinding drive module is mounted on one of the winding / unwinding frames and is used to drive the first rotating shaft to move back and forth. The second winding / unwinding drive module is mounted on the other winding / unwinding frame and is used to drive the second rotating shaft to move back and forth.

3. The roll changing device according to claim 2, characterized in that, The first rotating shaft passes through a first through hole in one of the winding and unwinding frames, and the second rotating shaft passes through a second through hole in the other winding and unwinding frame; The first take-up and unwind drive module includes a take-up and unwind cylinder and a first connector disposed on one of the take-up and unwind frames. A first sliding sleeve is sleeved on the outer periphery of the first rotating shaft. The first sliding sleeve is rotatably disposed in the first through hole. The first connector is sleeved on the outer periphery of the second end of the first rotating shaft. The output end of the take-up and unwind cylinder is connected to the first connector. The second take-up and unwind drive module includes a first motor, a first reducer, a lead screw, and a nut. The first reducer is disposed inside another take-up and unwind frame. The first motor is mounted on the first reducer, and the output end of the first motor is connected to the input end of the first reducer. The lead screw passes through another take-up and unwind frame and can rotate relative to it. One end of the lead screw is connected to the output end of the first reducer. The nut is threaded into the lead screw. A second connecting member is sleeved on the outer periphery of the nut. A connecting sleeve is rotatably sleeved on the outer periphery of the second rotating shaft. The connecting sleeve passes through the second through hole. A second sliding sleeve is sleeved on the outer periphery of the connecting sleeve and is disposed within the second through hole. One end of the second connecting member is connected to one end of the connecting sleeve, and the other end of the second connecting member is slidably sleeved on the outer periphery of a support shaft. The support shaft is disposed outside the other take-up and unwind frame.

4. The roll changing device according to claim 3, characterized in that, The rotation drive module includes a second motor, a second reducer, and a transmission assembly. The second reducer is disposed on the outside of one of the take-up and unwind frames. The second motor is disposed on the second reducer. The output end of the second motor is connected to the input end of the second reducer. The output end of the second reducer is connected to the first sliding sleeve through the transmission assembly. The second motor is used to drive the first sliding sleeve to rotate through the second reducer and the transmission assembly.

5. The roll changing device according to claim 1, characterized in that, The transfer assembly also includes two transfer drive modules corresponding to the two transfer shafts and the two transfer support frames, respectively. The two transfer drive modules are arranged in a front-to-back orientation and are respectively mounted on the two transfer support frames. The transfer drive modules are used to drive the corresponding transfer shafts to move back and forth.

6. The roll changing device according to claim 5, characterized in that, The transfer shaft passes through the transfer through hole of the corresponding transfer support frame. A transfer sliding sleeve is sleeved on the outer periphery of the transfer shaft. The transfer sliding sleeve is rotatably disposed in the transfer through hole of the corresponding transfer support frame. The transfer drive module includes a transfer cylinder and a transfer connector disposed on the corresponding transfer support frame. The transfer connector is rotatably sleeved on the outer periphery of the second end of the corresponding transfer shaft. The output end of the transfer cylinder is connected to the transfer connector.

7. The roll changing device according to claim 1, characterized in that, The roll changing device also includes a guide rail and a platform drive mechanism. The guide rail is located between the bottom ends of the two take-up and untake-up frames and the bottom ends of the two transfer support frames. One end of the guide rail protrudes from the end of the two transfer support frames away from the take-up and untake-up mechanism, and the other end of the guide rail protrudes from the end of the two take-up and untake-up frames away from the transfer mechanism. The bottom end of the lifting platform is provided with a sliding block that slides with the guide rail. The platform drive mechanism is used to drive the lifting platform to move left and right along the guide rail.

8. The roll changing device according to claim 7, characterized in that, The lifting platform includes a lower frame, an upper frame located above the lower frame, a lifting assembly, a coil support assembly, and a cylinder support assembly connecting the lower frame and the upper frame. The lower frame has a through cavity extending along its height direction, and the upper frame has a through cavity extending along its height direction. The sliding block is located at the bottom end of the lower frame. The platform driving mechanism is used to drive the lower frame to move left and right along the guide rail. The lifting assembly is used to drive the upper frame to move up and down. Two frame support plates arranged in a front-to-back orientation are respectively located at both ends of the top of the upper frame. The cylinder support assembly and the coil support assembly are arranged at left-to-right intervals. Each of the cylinder support assembly and the coil support assembly includes two support modules arranged in a front-to-back orientation. The two support modules are respectively located at both ends of the upper frame, and the two support module portions are respectively placed at the top of the two frame support plates.

9. The roll changing device according to claim 8, characterized in that, The platform drive mechanism includes a platform motor, a platform reducer, two horizontal rotating shafts, two commutators, two vertical rotating shafts, and two racks arranged in a front-to-back configuration. The platform reducer and the two commutators are respectively located on one side of the lower frame. The platform motor is mounted on the platform reducer, and its output end is connected to the input end of the platform reducer. The platform reducer is located between the two horizontal rotating shafts, with one end of each shaft connected to the two output ends of the platform reducer, and the other end connected to the output ends of the two commutators. The input end is connected, and two vertical rotating shafts are located below the two commutators respectively. One end of each vertical rotating shaft is connected to the output end of the two commutators, and the other end of each vertical rotating shaft extends downward and is provided with two gears respectively. The two gears mesh with two racks respectively. The two racks are located between the bottom ends of the two take-up and unwinding frames and the bottom ends of the two transfer support frames. One end of each rack protrudes from the end of the two transfer support frames away from the take-up and unwinding mechanism, and the other end of each rack protrudes from the end of the two take-up and unwinding frames away from the transfer mechanism. The lower frame is located between the two racks.

10. The roll changing device according to claim 8, characterized in that, The lifting assembly includes a scissor-type bracket and a bracket drive component; The scissor-type bracket includes two lower connecting rod groups arranged in a front-to-back orientation and two upper connecting rod groups arranged in a front-to-back orientation, with the two upper connecting rod groups corresponding to the two lower connecting rod groups respectively. The lower connecting rod group includes a first connecting rod and a second connecting rod, which are hinged together in an X-shape. A first lower support rod and a second lower support rod are provided in the through cavity of the lower frame, with the second lower support rod and the first lower support rod spaced apart from each other. Two lower mounting grooves are provided on the inner walls of both ends of the through cavity of the lower frame, with the ends of the first lower support rod and the second lower support rod extending into the two lower mounting grooves respectively. The ends of the first lower support rod are respectively located at the bottom of the two lower mounting grooves, and the ends of the second lower support rod are respectively close to the bottom of the two lower mounting grooves. The first end of the first connecting rod and the first end of the second connecting rod extend into the through cavity of the lower frame and are rotatably sleeved on the outer periphery of the first lower support rod and the outer periphery of the second lower support rod respectively. A first middle support rod and a second middle support rod are provided between the lower frame and the upper frame. The second middle support rod and the first middle support rod are arranged at left and right intervals. The first middle support rod corresponds to the first lower support rod, and the second middle support rod corresponds to the second lower support rod. The second end of the first connecting rod is rotatably sleeved on the outer periphery of the second middle support rod. The second end of the second connecting rod is rotatably sleeved on the outer periphery of the first middle support rod. The upper connecting rod group includes a third connecting rod and a fourth connecting rod. The third connecting rod and the fourth connecting rod are hinged together in an X shape. The first end of the third connecting rod and the first end of the fourth connecting rod are rotatably sleeved on the outer periphery of the first middle support rod and the outer periphery of the second middle support rod, respectively. The first end of the third connecting rod is close to the second end of the second connecting rod of the corresponding lower connecting rod group, and the first end of the fourth connecting rod is close to the second end of the first connecting rod of the corresponding lower connecting rod group. The upper frame through cavity is provided with a first upper support rod and a second upper support rod, which are arranged at left and right intervals. The first upper support rod corresponds to the first middle support rod, and the second upper support rod corresponds to the second middle support rod. The inner walls of both ends of the upper frame through cavity are provided with two upper mounting grooves. The two ends of the first upper support rod and the second upper support rod extend into the two upper mounting grooves respectively. The two ends of the first upper support rod are respectively set on the bottom of the two upper mounting grooves. The two ends of the second upper support rod are close to the bottom of the two upper mounting grooves respectively. The second end of the third connecting rod and the second end of the fourth connecting rod extend into the upper frame through cavity and are rotatably sleeved on the outer periphery of the second upper support rod and the outer periphery of the first upper support rod respectively. The bracket drive is located between the first and second middle support rods. The bracket drive is hinged to the first middle support rod, and the output end of the bracket drive is hinged to the second middle support rod.

11. The roll changing device according to claim 8, characterized in that, The support module includes a mounting plate, a support base, and a support block. The mounting plates of the two support modules are respectively disposed at both ends of the upper frame, and the mounting plate portion protrudes from the top of the frame support plate. The top and one end of the support base are both open. The support bases of the two support modules are respectively placed on the top of the two frame support plates. One end of the support base is installed on one side of the mounting plate. The support block is disposed at the other end of the support base. The top of the support block is provided with a placement groove, and the top end of the support base near the support block is provided with a clearance groove, which corresponds to the placement groove.

12. The roll changing device according to claim 11, characterized in that, The support block is slidably disposed at the other end of the support base and can move up and down relative to the support base. The support module also includes a pushing structure, which includes a support rotating shaft and a pushing cylinder. A vertical plate is provided at the bottom of the support base and is disposed on one side of the mounting plate. The support rotating shaft is located inside the support base. One end of the support rotating shaft is rotatably disposed on the vertical plate. The other end of the support rotating shaft passes through a first through hole at the other end of the support base and is located in the receiving cavity of the support block. A cam is sleeved on the outer periphery of the other end of the support rotating shaft and is located in the receiving cavity. The pushing cylinder is tilted upward and disposed inside the support base. Part of the pushing cylinder extends out from a second through hole on one side of the support base. The output end of the pushing cylinder is connected to a push block sleeved on the outer periphery of the support rotating shaft.

13. The roll changing device according to claim 12, characterized in that, One end of the support base is detachably mounted on one side of the mounting plate. One end of the support base is provided with a round screw hole. One side of the mounting plate is provided with a waist hole corresponding to the round screw hole. The waist hole extends to the other side of the mounting plate and the length direction of the waist hole is the same as the height direction of the mounting plate. The round screw hole and the corresponding waist hole are threaded with a first fastener. Both the barrel support assembly and the coil support assembly include two adjustment modules arranged in a front-to-back configuration. The two adjustment modules correspond to the two support modules and the two frame support plates, respectively. Each adjustment module includes an adjustment block. The inner walls at both ends of the through cavity of the upper frame are provided with two upper mounting slots. The adjustment blocks of the two adjustment modules are located in the two upper mounting slots and correspond to the two frame support plates, respectively. The adjustment blocks are threaded with a second fastener and a third fastener. The end of the second fastener passes through the first screw hole at the top of the upper frame and the second screw hole of the corresponding frame support plate and abuts against the bottom of the corresponding support seat. The second fastener is threadedly connected to the first screw hole and the second screw hole. The ends of the third fasteners of the two adjustment modules abut against the bottom of the two upper mounting slots, respectively.

14. The roll changing device according to claim 11, characterized in that, The inner walls on both sides of the placement groove are provided with two pads, which are arranged opposite each other. The top of the support base is provided with two blocks arranged opposite each other. The clearance groove is located between the two blocks, and the end of the two blocks closest to the clearance groove extends into the clearance groove.

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