Winding mechanism and recovery device comprising same

Abstract

The utility model relates to the technical field of battery recycling, in particular to a winding mechanism and a recycling device comprising the same, the winding mechanism comprises a winding roller and a positioning column, the winding roller is used for winding a battery diaphragm, and an opening groove allowing one end of the battery diaphragm to be inserted and installed is formed in the peripheral wall of the winding roller; the positioning column is arranged in the open slot and is used for allowing the battery diaphragm to penetrate through, so that the battery diaphragm is fixed on the peripheral wall of the positioning column. According to the winding mechanism, the battery diaphragm is fixed through the positioning column, in the process that the winding roller winds and recycles the battery diaphragm, pollution caused by falling of the battery diaphragm can be avoided, it can be guaranteed that the battery diaphragm is wound around the winding roller in the rotating direction of the winding roller, and the quality of the disassembled and recycled battery diaphragm is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery recycling, and particularly to a winding mechanism and a recycling device including the same. Background Art

[0002] With the rapid development of new energy electric vehicles, as a core component of new energy electric vehicles, the scrapped quantity of batteries is increasing day by day. Due to its special material composition, it is easy to cause environmental pollution after being scrapped. The recycling of waste batteries has become an important factor affecting the development of the industry.

[0003] In the structure of lithium batteries, the battery separator is the most technically barrier key inner component in the lithium-ion battery industrial chain. The performance of the battery separator determines the interface structure, internal resistance, etc. of the battery, directly affects the characteristics such as the capacity, cycle, and safety performance of the battery, and its cost accounts for about 20% in power batteries. Therefore, the recycling of the battery separator has become an important technology. However, in the process of disassembling and recycling the battery separator by the existing recycling devices, the battery separator cannot be automatically wound up, or the fixing effect on the battery separator is poor, resulting in the battery separator being scattered on the workbench and causing pollution, so that it cannot be effectively recycled and utilized, causing waste of resources.

[0004] In view of this, the present application is specifically proposed. Utility Model Content

[0005] The present application provides a winding mechanism and a recycling device including the same, for solving the problem of how to effectively fix the battery separator to avoid pollution caused by the falling off of the battery separator.

[0006] On the one hand, the present application provides a winding mechanism and a recycling device including the same, comprising:

[0007] A winding roller, which is used for winding the battery separator, and an opening groove for inserting and loading one end of the battery separator is arranged on the outer peripheral wall of the winding roller;

[0008] A positioning column, which is arranged in the opening groove and is used for the battery separator to pass through, so that the battery separator is fixed on the outer peripheral wall of the positioning column.

[0009] In some embodiments, the opening groove extends along the length direction of the winding roller, and a plurality of the positioning columns are arranged at intervals along the length direction of the winding roller in the opening groove.

[0010] In some embodiments, a plurality of the opening grooves are arranged at intervals along the length direction of the winding roller, and at least one positioning column is arranged in each opening groove.

[0011] In some of these embodiments, the opening groove has a first side wall and a second side wall that are oppositely arranged in a first direction, and the positioning post extends from one of the first side wall and the second side wall to the other, where the first direction is perpendicular to the length direction of the winding roller.

[0012] In some of these embodiments, the winding mechanism further includes:

[0013] A winding motor;

[0014] A winding shaft that is rotatably sleeved inside the winding roller and axially penetrates the winding roller along its axis;

[0015] A connecting plate, the connecting plate includes a transverse portion and a vertical portion, the transverse portion is arranged along the length direction of the winding roller, the vertical portion is for the winding shaft to pass through, and one end of the winding shaft passes through the vertical portion and is connected to the winding motor; and

[0016] A limiting plate, the limiting plate is detachably connected to the transverse portion, the limiting plate and the vertical portion are arranged oppositely along the axial direction of the winding shaft and sleeved on the winding shaft, so that the winding roller is clamped between the limiting plate and the vertical portion.

[0017] In some of these embodiments, the transverse portion is provided with a chute that opens upward and depresses downward, the limiting plate is arranged in the chute, and the winding mechanism further includes:

[0018] A lead screw, one end of the lead screw is provided with a crank, and the other end of the lead screw extends into the chute and is rotatably connected to the limiting plate;

[0019] A lead screw nut, the lead screw nut is sleeved on the lead screw, and one end of the lead screw nut away from the crank abuts against the limiting plate.

[0020] In some of these embodiments, one end of the lead screw nut away from the crank is provided with a plug-in block extending towards the limiting plate, and the limiting plate is provided with a plug-in hole for the plug-in block to be plugged into.

[0021] On the other hand, the present application also provides a recycling device, including:

[0022] A workbench;

[0023] The winding mechanism as described in any one of the above, the winding mechanism is mounted to the workbench through a first bracket;

[0024] A flattening mechanism, the flattening mechanism is arranged upstream of the winding mechanism along the conveying direction of the battery separator for flattening the battery separator; and

[0025] Trimming mechanism, which is arranged between the flattening mechanism and the winding mechanism, and is used for trimming the battery separator.

[0026] In some embodiments, the flattening mechanism includes an upper pressing roller and a lower pressing roller for flattening the battery separator. The upper pressing roller and the lower pressing roller are respectively mounted on the workbench through a second bracket, and the axes of the upper pressing roller and the lower pressing roller are parallel to the axis of the winding roller.

[0027] In some embodiments, the trimming mechanism includes a third bracket mounted on the workbench. The third bracket has an inverted U-shaped groove for the battery separator to pass through. Cutting knives are respectively arranged on both side walls of the inverted U-shaped groove, and the two cutting knives are oppositely arranged on both sides in the width direction of the battery separator.

[0028] After adopting the above technical solutions, the present application has the following beneficial effects compared with the prior art.

[0029] 1. In the winding mechanism of the present application, the battery separator is fixed by the positioning posts. During the process of winding and recycling the battery separator by the winding roller, it can not only prevent the battery separator from falling off and causing pollution, but also ensure that the battery separator is wound on the winding roller along the rotation direction of the winding roller, improving the quality of the recycled battery separator.

[0030] 2. In the winding mechanism of the present application, by arranging a flattening mechanism and a trimming mechanism upstream in the conveying direction of the battery separator, the flattening treatment and trimming treatment of the battery separator are realized, ensuring the flatness of the battery separator and preventing the battery separator from having rough edges, which may cause the battery separator to be unable to be reused, further improving the quality of the recycled battery separator. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of a recycling device in an embodiment of the present application;

[0032] Figure 2 is a top view of a recycling device in an embodiment of the present application;

[0033] Figure 3 is Figure 2 a partial enlarged view of part A in

[0034] Figure 4 is a schematic structural diagram of the winding mechanism in an embodiment of the present application;

[0035] Figure 5 is Figure 4 a partial enlarged view of part B in

[0036] Figure 6 is a cross-sectional view of the winding roller in an embodiment of the present application.

[0037] In the figure: 100, recycling device; 110, workbench; 111, support plate; 112, support leg; 120, first bracket; 130, winding mechanism; 131, winding roller; 1311, winding roller body; 1312, first limiting part; 1313, second limiting part; 1314, opening groove; 13141, first side wall; 13142, second side wall; 13143, groove bottom; 132, positioning column; 133, driving component; 1331, winding motor; 1332, winding shaft; 1333, protective cover; 1334, first rotating shaft; 1335, second rotating shaft; 1336, synchronous limiting bar; 1337, synchronous inserting rod; 134, connecting plate; 1341, vertical part; 1342, horizontal part; 1343, sliding groove; 135, limiting plate; 136, lead screw assembly; 1361, lead screw; 1362, lead screw nut; 1363, crank; 1364, inserting block; 1365, sliding rod; 137, first baffle; 138, second baffle; 140, flattening mechanism; 141, upper pressing roller; 142, lower pressing roller; 143, second bracket; 150, edge trimming mechanism; 151, third bracket; 1511, inverted U-shaped groove; 152, cutting knife. Detailed implementation manners

[0038] Next, the technical solutions of the present application will be described clearly and completely in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0039] In the embodiments of the present application, a winding mechanism 130 is provided, which is used for winding and recycling battery diaphragms during the battery recycling process. For the specific structure of the winding mechanism 130, please refer to Figures 1 to 6 , which includes a winding roller 131 and a positioning column 132. Among them, the winding roller 131 is used for winding the battery diaphragm, and an opening groove 1314 for inserting one end of the battery diaphragm is provided on the outer peripheral wall of the winding roller 131; the positioning column 132 is arranged in the opening groove 1314 and is used for the battery diaphragm to pass through, so that the battery diaphragm is fixed on the outer peripheral wall of the positioning column 132.

[0040] According to the winding mechanism 130 of the present application, the battery diaphragm is fixed by the positioning column 132. During the process of winding and recycling the battery diaphragm by the winding roller 131, not only can the battery diaphragm be prevented from falling off and causing pollution, but also the battery diaphragm can be ensured to be wound on the winding roller 131 along the rotation direction of the winding roller 131, improving the quality of the disassembled and recycled battery diaphragm.

[0041] As Figures 4 to 6As shown, the open slot 1314 has a first side wall 13141 and a second side wall 13142 that are oppositely arranged in a first direction. The positioning post 132 extends from one of the first side wall 13141 and the second side wall 13142 to the other. Herein, the first direction is perpendicular to the length direction of the winding roller 131, such that one end of the battery separator in its length direction is sleeved on the positioning post 132, and the width direction of the battery separator is arranged in the same direction as the length direction of the winding roller 131.

[0042] As Figures 4 to 6 shown, the open slot 1314 is a U-shaped groove or a C-shaped groove extending along the length direction of the winding roller 131. The U-shaped groove or the C-shaped groove has a first side wall 13141 and a second side wall 13142 that are oppositely arranged in a first direction. One end of the battery separator in its length direction is inserted into the U-shaped groove or the C-shaped groove through the open end of the U-shaped groove or the C-shaped groove to achieve clamping and limiting of the battery separator, and the battery separator passes through the positioning post 132 to achieve socket fixing of the battery separator. During the winding and recycling process of the battery separator, it is ensured that the battery separator is firmly wound around the winding roller 131.

[0043] The positioning post 132 extends from the first side wall 13141 in the first direction or in the direction close to the bottom 13143 of the open slot 1314 to the second side wall 13142. Exemplarily, as Figures 4 to 6 shown, the first direction is arranged in the same direction as the height direction of the winding roller 131. The open slot 1314 is a C-shaped groove extending along the length direction of the winding roller 131. The first side wall 13141 and the second side wall 13142 are oppositely arranged along the height direction of the winding roller 131. The positioning post 132 extends upward from the first side wall 13141. There is a gap between the positioning post 132 and the second side wall 13142 for the battery separator to be inserted and loaded.

[0044] As an alternative embodiment, as Figures 4 to 6 shown, the open slot 1314 extends along the length direction of the winding roller 131. A plurality of positioning posts 132 are arranged at intervals along the length direction of the winding roller 131 in the open slot 1314. One end of the battery separator in its length direction is provided with through holes. The plurality of through holes are arranged at intervals along the width direction of the battery separator, that is, the plurality of through holes are arranged at intervals along the length direction of the winding roller 131. The plurality of through holes of the battery separator respectively pass through the corresponding positioning posts 132, such that the battery separator is fixed on the outer peripheral wall of the positioning post 132 to achieve multi-point fixing of the battery separator, ensure that the battery separator is closely attached to the outer peripheral wall of the winding roller 131, so that the battery separator has good flatness, and prevent local bulging of the battery separator from affecting the secondary utilization of the battery separator.

[0045] As an embodiment not shown, a plurality of opening slots 1314 are arranged at intervals along the length direction of the winding roller 131. At least one positioning post 132 is arranged in each opening slot 1314. One end of the battery separator along its length direction is provided with a plug-in portion, and a plurality of plug-in portions are arranged at intervals along the width direction of the battery separator, that is, a plurality of plug-in portions are arranged at intervals along the length direction of the winding roller 131. At least one through hole is formed in each plug-in portion. The plurality of plug-in portions of the battery separator are respectively plugged into the corresponding opening slots 1314, and the through holes of each plug-in portion pass through the positioning posts 132 in the corresponding opening slots 1314, so that the battery separator is fixed on the outer peripheral wall of the positioning post 132, realizing multi-point fixation of the battery separator, and the battery separator can better fit on the outer peripheral wall of the winding roller 131, ensuring the flatness of the battery separator.

[0046] As Figure 1 , Figure 2 and Figures 4 to 6 shown, the winding mechanism 130 further includes a driving assembly 133, a connecting plate 134 and a limiting plate 135. The driving assembly 133 is used to drive the winding roller 131 to wind and recycle the battery separator. Among them, the driving assembly 133 includes a winding motor 1331 and a winding shaft 1332. The winding shaft 1332 is rotatably sleeved in the winding roller 131 and axially penetrates the winding roller 131; the connecting plate 134 includes a transverse portion 1342 and a vertical portion 1341, that is, the connecting plate 134 is an L-shaped bent plate. The transverse portion 1342 is arranged along the length direction of the winding roller 131 and is arranged below the winding roller 131. The vertical portion 1341 is used for the winding shaft 1332 to pass through. One end of the winding shaft 1332 passes through the vertical portion 1341 and is connected to the winding motor 1331; the limiting plate 135 is detachably connected to the transverse portion 1342. The limiting plate 135 and the vertical portion 1341 are arranged opposite to each other along the axial direction of the winding shaft 1332 and are sleeved on the winding shaft 1332, so that the winding roller 131 is clamped between the limiting plate 135 and the vertical portion 1341, preventing the winding roller 131 from moving axially during rotation and affecting the battery separator winding operation.

[0047] As Figure 1 , Figure 2 , Figure 5 and Figure 6 shown, the driving assembly 133 further includes a protective cover 1333 arranged opposite to the vertical portion 1341. The winding motor 1331 is arranged in the protective cover 1333. The protective cover 1333 is fixed on the vertical portion 1341 by fasteners, which can effectively prevent foreign objects from entering the winding motor 1331, reduce the operation failure rate of the winding motor 1331, and improve the operation reliability of the winding motor 1331.

[0048] For the specific structure of the winding roller 131, please refer to Figures 1 to 6, which includes a cylindrical winding roller body 1311, a first limiting portion 1312 and a second limiting portion 1313 protruding radially along the winding roller body 1311. Among them, the first limiting portion 1312 and the second limiting portion 1313 are oppositely arranged at both ends of the winding roller body 1311 along its axial direction; the winding roller body 1311 has the same extending direction as the transverse portion 1342, and an opening groove 1314 for inserting and loading one end of the battery separator is provided on the outer peripheral wall of the winding roller body 1311. The positioning post 132 is arranged in the opening groove 1314 for the battery separator to pass through, so that the battery separator is fixed on the outer peripheral wall of the positioning post 132.

[0049] As Figures 1 to 6 shown, the winding shaft 1332 is rotatably sleeved in the winding roller body 1311 and axially penetrates the winding roller body 1311. The winding shaft 1332 is slidably connected to the inside of the winding roller body 1311 through a synchronous limiting strip 1336, so that the winding roller 131 rotates synchronously with the rotation of the winding motor 1331.

[0050] As Figures 1 to 5 shown, the winding mechanism 130 further includes a first baffle 137 and a second baffle 138. The driving assembly 133 further includes a first rotating shaft 1334 and a second rotating shaft 1335. Among them, the first baffle 137 is arranged between the vertical portion 1341 and the first limiting portion 1312, and the second baffle 138 is arranged between the limiting plate 135 and the second limiting portion 1313. The first rotating shaft 1334 penetrates the vertical portion 1341 and the first baffle 137, and both ends of the first rotating shaft 1334 are connected to one end of the winding shaft 1332 and the winding motor 1331 respectively. One end of the second rotating shaft 1335 penetrates the limiting plate 135 and is connected to the other end of the winding shaft 1332 through a synchronous inserting rod 1337, and the synchronous inserting rod 1337 penetrates the second baffle 138 and is connected to the other end of the winding shaft 1332, so that the winding motor 1331 can drive the first rotating shaft 1334, the first baffle 137, the second rotating shaft 1335 and the second baffle 138 to rotate synchronously.

[0051] As Figure 4 shown, the transverse portion 1342 is provided with an upward-opening and downward-depressed sliding groove 1343. The limiting plate 135 is arranged in the sliding groove 1343. The winding mechanism 130 further includes a lead screw assembly 136 connected to the limiting plate 135. The lead screw assembly 136 can both fix the limiting plate 135 to prevent the winding roller 131 from crosstalking during rotation, and can also be separated from the limiting plate 135 to facilitate removing the winding roller 131 filled with the battery separator, so as to replace a new winding roller 131 to continue the winding operation.

[0052] For the specific structure of the lead screw assembly 136, please refer to Figure 2 , Figure 3 and Figure 4, which includes a lead screw 1361 and a lead screw nut 1362. One end of the lead screw 1361 is provided with a crank 1363, and the other end of the lead screw 1361 extends into the chute 1343 and is rotatably connected to the limit plate 135; the lead screw nut 1362 is sleeved on the lead screw 1361, and one end of the lead screw nut 1362 away from the crank 1363 abuts against the limit plate 135. By controlling the rotation direction of the crank 1363, the lead screw nut 1362 moves towards the limit plate 135 and abuts against the limit plate 135, so as to clamp and fix the winding roller 131, or the lead screw nut 1362 moves away from the limit plate 135 to separate from the limit plate 135, thereby releasing the fixation of the limit plate 135.

[0053] As Figure 2 , Figure 3 and Figure 4 shown, one end of the lead screw nut 1362 away from the crank 1363 is provided with a plug-in block 1364 extending towards the limit plate 135, and the limit plate 135 is provided with a plug-in hole for the plug-in block 1364 to be inserted. Through the plug-in cooperation between the plug-in block 1364 and the limit plate 135, the axial crosstalk of the limit plate 135 along the winding roller 131 is restricted, and the fixing effect of the limit plate 135 is enhanced.

[0054] As Figure 2 , Figure 3 and Figure 4 shown, the lead screw assembly 136 further includes a sliding rod 1365. The sliding rod 1365 is arranged in parallel with the lead screw 1361 and is slidably connected to the lead screw nut 1362. Since the sliding rod 1365 and the lead screw 1361 are arranged in parallel, when the lead screw 1361 rotates, the lead screw nut 1362 is driven to move along the axis direction of the lead screw 1361, so as to realize the plug-in cooperation or separation between the plug-in block 1364 and the limit plate 135.

[0055] In the embodiment of the present application, a recycling device 100 is further provided. For the specific structure of the recycling device 100, please refer to Figure 1 and Figure 2 , which includes a workbench 110, the winding mechanism 130, the flattening mechanism 140 and the edge trimming mechanism 150 in the above embodiments. Among them, the winding mechanism 130 is installed on the workbench 110 through the first bracket 120; the flattening mechanism 140 is arranged upstream of the winding mechanism 130 along the conveying direction of the battery separator, and is used for flattening the battery separator; the edge trimming mechanism 150 is arranged between the flattening mechanism 140 and the winding mechanism 130, and is used for trimming the edge of the battery separator, so as to perform edge trimming, flattening and winding operations on the battery separator in sequence.

[0056] According to the recycling device 100 of the present application, by arranging a flattening mechanism 140 and a trimming mechanism 150 upstream in the conveying direction of the battery separator, the flattening treatment and trimming treatment of the battery separator are realized, ensuring the flatness of the battery separator, preventing the battery separator from having rough edges and causing the battery separator to be unable to be reused, and further improving the quality of the disassembled and recycled battery separator.

[0057] As Figure 1 and Figure 2 shown, the workbench 110 includes a support plate 111 arranged in the horizontal direction and support legs 112 arranged below the support plate 111. Among them, the winding mechanism 130, the flattening mechanism 140, and the trimming mechanism 150 are respectively arranged on the support plate 111, and at least four support legs 112 are spaced apart and arranged at the bottom of the support plate 111 to ensure that the strength of the workbench 110 meets the requirements of the battery separator winding and recycling operation.

[0058] For the specific structure of the flattening mechanism 140, please refer to Figure 1 and Figure 2 , which includes an upper pressing roller 141 and a lower pressing roller 142 for flattening the battery separator. Among them, the upper pressing roller 141 and the lower pressing roller 142 are respectively installed on the workbench 110 through a second bracket 143, and the axes of the upper pressing roller 141 and the lower pressing roller 142 are parallel to the axis of the winding roller 131. When the battery separator passes between the upper pressing roller 141 and the lower pressing roller 142, the upper pressing roller 141 and the lower pressing roller 142 can flatten the battery separator to ensure the flatness of the battery separator.

[0059] For the specific structure of the trimming mechanism 150, please refer to Figure 1 and Figure 2 , which includes a cutting knife 152 and a third bracket 151. Among them, the third bracket 151 is installed on the workbench 110, and the third bracket 151 has an inverted U-shaped groove 1511 for the battery separator to pass through. Cutting knives 152 are respectively arranged on both side walls of the inverted U-shaped groove 1511, and the two cutting knives 152 are oppositely arranged on both sides in the width direction of the battery separator. When the battery separator passes through the inverted U-shaped groove 1511, the two cutting knives 152 respectively perform trimming treatment on both sides in the width direction of the battery separator to prevent the battery separator from having rough edges and causing the battery separator to be unable to be reused.

[0060] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0061] In addition, the terms "upper" and "lower" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "upper" and "lower" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0062] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0063] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0064] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as a limitation to the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A winding mechanism, characterized in that, Comprising: A winding roller for winding a battery separator, and an opening groove for inserting and loading one end of the battery separator is provided on the outer peripheral wall of the winding roller; A positioning post is provided in the opening groove for the battery separator to pass through, so that the battery separator is fixed on the outer peripheral wall of the positioning post.

2. The winding mechanism according to claim 1, wherein The opening groove extends along the length direction of the winding roller, and a plurality of the positioning posts are arranged at intervals along the length direction of the winding roller in the opening groove.

3. The winding mechanism according to claim 1, wherein A plurality of the opening grooves are arranged at intervals along the length direction of the winding roller, and at least one positioning post is arranged in each opening groove.

4. The winding mechanism according to claim 1, wherein The opening groove has a first side wall and a second side wall oppositely arranged in a first direction, and the positioning post extends from one of the first side wall and the second side wall to the other, wherein the first direction is perpendicular to the length direction of the winding roller.

5. The winding mechanism according to any one of claims 1 to 4, characterized in that, The winding mechanism further comprises: A winding motor; A winding shaft rotatably sleeved in the winding roller and axially penetrating the winding roller along its axis; A connecting plate including a transverse portion and a vertical portion, the transverse portion is arranged along the length direction of the winding roller, the vertical portion is for the winding shaft to pass through, and one end of the winding shaft passes through the vertical portion and is connected to the winding motor; and A limiting plate detachably connected to the transverse portion, the limiting plate and the vertical portion are arranged oppositely along the axial direction of the winding shaft and sleeved on the winding shaft, so that the winding roller is clamped between the limiting plate and the vertical portion.

6. The winding mechanism according to claim 5, characterized in that, The transverse portion is provided with a chute that is upwardly open and downwardly recessed, the limiting plate is arranged in the chute, and the winding mechanism further comprises: A lead screw, one end of the lead screw is provided with a crank, and the other end of the lead screw extends into the chute and is rotatably connected to the limiting plate; A lead screw nut sleeved on the lead screw, and one end of the lead screw nut away from the crank abuts against the limiting plate.

7. The winding mechanism according to claim 6, wherein One end of the lead screw nut away from the crank is provided with a plug-in block extending towards the limiting plate, and a plug-in hole for the plug-in block to be inserted and loaded is provided on the limiting plate.

8. A recycling device, characterized in that, Comprising: A workbench; The winding mechanism according to any one of claims 1 to 7, and the winding mechanism is mounted to the workbench through a first bracket; A flattening mechanism arranged upstream of the winding mechanism along the conveying direction of the battery separator for flattening the battery separator; And A trimming mechanism arranged between the flattening mechanism and the winding mechanism for trimming the battery separator.

9. The recovery device according to claim 8, characterized in that, The flattening mechanism comprises an upper flattening roller and a lower flattening roller for flattening the battery separator, the upper flattening roller and the lower flattening roller are respectively mounted to the workbench through a second bracket, and the axes of the upper flattening roller and the lower flattening roller are parallel to the axis of the winding roller.

10. The recovery device according to claim 8, characterized in that The trimming mechanism comprises a third bracket mounted on the workbench, the third bracket has an inverted U-shaped groove for the battery separator to pass through, and cutting knives are respectively arranged on both side walls of the inverted U-shaped groove, and the two cutting knives are oppositely arranged on both sides in the width direction of the battery separator.

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