Winding equipment

Abstract

The utility model provides winding equipment, and relates to the technical field of batteries. The winding equipment comprises a passing roller and a smoothing mechanism, the passing roller comprises a roller body and a roller shaft penetrating through the roller body, the smoothing mechanism comprises a first connecting piece, a second connecting piece, a rotating piece and a smoothing piece, the first connecting piece and the second connecting piece are connected to the roller shaft, the first connecting piece is located between the second connecting piece and the roller body, and the smoothing piece is located on the peripheral side of the roller body. One end of the rotating piece is connected with the smoothing piece, the end, away from the smoothing piece, of the rotating piece is rotationally connected with the second connecting piece, the rotating piece is magnetically connected with the first connecting piece, and the first rotating axis of the roller body is perpendicular to the second rotating axis of the rotating piece. Based on the design of the structure, the risk that the pole lug is damaged by the smoothing piece in the pole piece penetrating process is reduced, and therefore the production yield of the winding equipment is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a winding device. Background Technology

[0002] There are usually two processes for manufacturing electrode components for battery cells: winding and stacking. When the winding process is used to manufacture electrode components, the electrode sheets need to be cut and wound into shape by winding equipment. In order to prevent the electrode tabs from folding, a smoothing part is set at the roller where the electrode sheets pass to smooth the tabs. After the electrode sheets are interrupted, they need to be passed through the tiny gap between the smoothing part and the roller body again. During the process, the smoothing part is prone to damaging the tabs, thus affecting the production yield. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a winding device that aims to solve the technical problem that the flattening component is prone to damage to the electrode tabs during the electrode threading process, which affects the production yield.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] Embodiments of this application provide a winding apparatus having a first direction and a second direction perpendicular to each other, and comprising:

[0006] The roller includes a roller body and a roller shaft disposed along the first direction and passing through the roller body. The roller body and the roller shaft are rotatably connected. The roller body has a first rotation axis parallel to the first direction.

[0007] A smoothing mechanism includes a first connector, a second connector, a rotating member, and a smoothing member. The first connector and the second connector are connected to the roller shaft. The first connector is located between the second connector and the roller body along the first direction. The smoothing member is located on the outer periphery of the roller body. One end of the rotating member is connected to the smoothing member, and the end of the rotating member away from the smoothing member is rotatably connected to the second connector. The rotating member has a second rotation axis parallel to the second direction, and the rotating member is magnetically connected to the first connector.

[0008] In one embodiment, one of the rotating member and the first connecting member is provided with a first magnet, and the other is a ferromagnetic metal element magnetically connected to the first magnet.

[0009] In one embodiment, the rotating member includes a first connecting part, a transition part, and a second connecting part connected in sequence. The first connecting part is rotatably connected to the second connecting member, and the second connecting part is connected to the smoothing member. The transition part is provided with a first mounting hole on the side of the roller body along the first direction. The first magnet is located in the first mounting hole. The side of the first connecting member away from the roller body along the first direction abuts against the transition part.

[0010] In one embodiment, the smoothing mechanism further includes a first plastic part and a rotating shaft passing through the first plastic part. The second connecting member is provided with a groove. The end of the rotating member away from the smoothing member is located in the groove and is hinged to the groove wall through the rotating shaft. The first plastic part is rotatably connected to the rotating shaft and abuts against the groove wall and the rotating member.

[0011] In one embodiment, the second connector is slidably connected to the roller along the first direction and is magnetically connected to the first connector.

[0012] In one embodiment, one of the first connector and the second connector is provided with a second magnet, and the other is provided with a third magnet that is magnetically connected to the second magnet.

[0013] In one embodiment, the first connector has a second mounting hole on the side away from the roller body along the first direction, and the second connector has a third mounting hole on the side facing the roller body along the first direction. The second magnet is located in the second mounting hole, and the third magnet is located in the third mounting hole. The side of the first connector away from the roller body along the first direction abuts against the second connector.

[0014] In one embodiment, one of the first connector and the second connector is provided with a positioning hole, and the other is provided with a positioning part, which passes through the positioning hole.

[0015] In one embodiment, the second connector is provided with a plurality of positioning holes on the side facing the roller body along the first direction, with two adjacent positioning holes spaced apart. The first connector is provided with a plurality of positioning parts on the side facing away from the roller body along the first direction, with two adjacent positioning parts spaced apart. Each positioning part passes through one positioning hole.

[0016] In one embodiment, the roller includes a shaft and a second plastic part, the roller is rotatably connected to the shaft, the second plastic part covers the outer periphery of the shaft, the first connecting member is provided with a first through hole, the second connecting member is provided with a second through hole, the shaft passes through the first through hole and the second through hole, the second plastic part is interference-fitted with the first through hole and clearance-fitted with the second through hole.

[0017] The beneficial effects of this application are as follows:

[0018] The winding equipment provided in this application has a first direction and a second direction perpendicular to each other, and includes a guide roller and a smoothing mechanism. A first connector and a second connector of the smoothing mechanism are connected to the roller shaft of the guide roller. The first connector is located between the second connector and the roller body of the guide roller along the first direction. One end of a rotating component is connected to the smoothing component, and the end of the rotating component away from the smoothing component is rotatably connected to the second connector. The first rotation axis of the roller body is parallel to the first direction, and the second rotation axis of the rotating component is parallel to the second direction, such that the first and second rotation axes intersect. Simultaneously, the rotating component is magnetically connected to the first connector, making the rotating component and the first connector detachably connected. Thus, by rotating the rotating component, it can be disengaged from the first connector, thereby moving the smoothing component away from the roller body to create space for the electrode insertion. This reduces the risk of the smoothing component damaging the electrode tabs during electrode insertion and improves the production yield of the winding equipment.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This invention provides a schematic diagram of the assembly structure of the roller and smoothing mechanism from one perspective in one embodiment of the present application.

[0022] Figure 2 This invention provides a schematic diagram of the assembly structure of the roller and smoothing mechanism from another perspective in one embodiment of the present application.

[0023] Figure 3 It shows Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0024] Figure 4 It shows Figure 3 A magnified structural diagram of region B in the middle;

[0025] Figure 5 It shows in Figure 1 A schematic diagram showing the state of the smoothing component moving away from the roller body as the rotating component rotates;

[0026] Figure 6 It shows in Figure 5 A schematic diagram showing the state of the smoothing component as it slides further away from the roller body, based on the sliding of the second connecting component;

[0027] Figure 7 It shows Figure 1 A schematic diagram of the assembly structure of the central smoothing mechanism from a one-view perspective;

[0028] Figure 8 It shows Figure 7 Decomposition structure diagram Figure 1 ;

[0029] Figure 9 It shows Figure 7 Decomposition structure diagram Figure 2 .

[0030] Explanation of key component symbols:

[0031] 100 - Overpass roller; 110 - Roller body; 120 - Roller shaft; 121 - Shaft body; 122 - Second plastic part; 200 - Smoothing mechanism; 210 - First connecting piece; 211 - Second mounting hole; 212 - Positioning part; 213 - First through hole; 220 - Second connecting piece; 221 - Groove; 222 - Third mounting hole; 223 - Positioning hole; 224 - Second through hole; 230 - Rotating part; 231 - First mounting hole; 232 - Arc surface; 233 - Gap; 234 - First connecting part; 235 - Adapter part; 236 - Second connecting part; 240 - Smoothing part; 251 - First magnet; 252 - Second magnet; 253 - Third magnet; 261 - First plastic part; 262 - Rotating shaft; X - First direction; Y - Second direction; Z - Third direction; J - First rotation axis; K - Second rotation axis. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this application, the terms "first," "second," etc., are used to distinguish different objects and should not be construed as indicating or implying a specific order or hierarchy, or implicitly specifying the number of technical features indicated. Therefore, a feature marked "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0036] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In the description of this application, the term "and / or" indicates that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0038] In the description of this application, "parallel" includes not only the case of absolute parallelism, but also the case of approximate parallelism as commonly understood in engineering; similarly, "perpendicular" also includes not only the case of absolute perpendicularity, but also the case of approximate perpendicularity as commonly understood in engineering. For example, if the angle between two directions is 80° to 90°, the two directions can be considered perpendicular; if the angle between two directions is 0° to 10°, the two directions can be considered parallel.

[0039] There are usually two processes for manufacturing electrode components for battery cells: winding and stacking. When the winding process is used to manufacture electrode components, the electrode sheets need to be cut and wound into shape by winding equipment. In order to prevent the electrode tabs from folding and causing short circuits in the electrode components, a smoothing component is set at each roller through which the electrode sheets pass to smooth the tabs. After the electrode sheet is interrupted, it needs to be re-passed through the tiny gap between the smoothing component and the roller. Due to the small size of the gap and the large number of rollers, the process of passing the electrode sheets through is time-consuming and labor-intensive, and the smoothing component is prone to damaging the tabs, thus affecting production efficiency and production yield.

[0040] To address the aforementioned technical problems, embodiments of this application provide a winding device, relating to the field of battery technology, primarily used for slitting and winding electrode sheets.

[0041] like Figure 1 As shown, the winding equipment provided in this embodiment includes a guide roller 100 and a smoothing mechanism 200.

[0042] The roller 100 includes a roller body 110 and a roller shaft 120 passing through the roller body 110 along a first direction X. The roller body 110 and the roller shaft 120 are rotatably connected. The roller body 110 has a first rotation axis J parallel to the first direction X. The smoothing mechanism 200 includes a first connector 210, a second connector 220, a rotating member 230, and a smoothing member 240. The first connector 210 and the second connector 220 are connected to the roller shaft 120. The first connector 210 is located between the second connector 220 and the roller body 110 along the first direction X. The smoothing member 240 is located on the outer periphery of the roller body 110. One end of the rotating member 230 is connected to the smoothing member 240. The end of the rotating member 230 away from the smoothing member 240 is rotatably connected to the second connector 220. The rotating member 230 has a second rotation axis K parallel to the second direction Y. The rotating member 230 is magnetically connected to the first connector 210.

[0043] It is understood that the winding device provided in this embodiment has a first direction X and a second direction Y that are perpendicular to each other, and includes a guide roller 100 and a smoothing mechanism 200. The first connecting member 210 and the second connecting member 220 of the smoothing mechanism 200 are connected to the roller shaft 120 of the guide roller 100. The first connecting member 210 is located between the second connecting member 220 and the roller body 110 of the guide roller 100 along the first direction X. One end of the rotating member 230 is connected to the smoothing member 240, and the end of the rotating member 230 away from the smoothing member 240 is rotatably connected to the second connecting member 220. The first rotation axis J of the roller body 110 is parallel to the first direction X, and the second rotation axis K of the rotating member 230 is parallel to the second direction Y, so that the first rotation axis J and the second rotation axis K intersect. At the same time, the rotating member 230 is magnetically connected to the first connecting member 210, so that the rotating member 230 and the first connecting member 210 are detachably connected.

[0044] In this way, by rotating the rotating component 230, it can be disengaged from the first connecting component 210, thereby causing the smoothing component 240 to move away from the roller body 110, so as to make room for the insertion of the electrode sheet (e.g. Figure 5 As shown in the figure, this is a schematic diagram of the state when the smoothing part 240 moves away from the roller body 110 as the rotating part 230 rotates. This reduces the risk of the smoothing part 240 damaging the electrode tabs during the electrode insertion process and improves the production yield of the winding equipment.

[0045] In addition, by rotating the rotating component 230 to move the smoothing component 240 away from the roller body 110, it is easier to place the electrode sheet on the outer periphery of the roller body 110. After the electrode sheet is placed, the rotating component 230 can be rotated to move the smoothing component 240 to the outer periphery of the roller body 110. This reduces the difficulty of threading the electrode sheet and thus improves the production efficiency of the winding equipment.

[0046] It should be noted that since the first rotation axis J of the roller body 110 is parallel to the first direction X, and the second rotation axis K of the rotating component 230 is parallel to the second direction Y, while the first direction X and the second direction Y are perpendicular, the first rotation axis J and the second rotation axis K intersect. Here, the intersection between the first rotation axis J and the second rotation axis K can be a non-planar intersection, that is, the first rotation axis J and the second rotation axis K are located in different planes, or it can be a coplanar intersection, that is, the first rotation axis J and the second rotation axis K are located in the same plane. No specific restrictions are made here.

[0047] like Figures 2 to 4 As shown, in one embodiment, one of the rotating member 230 and the first connecting member 210 is provided with a first magnet 251, and the other is a ferromagnetic metal element magnetically connected to the first magnet 251.

[0048] For example, the first magnet 251 is a permanent magnet (magnet), an electromagnet (electromagnet), or other component that can magnetically attract ferromagnetic metals, and no specific limitation is made here.

[0049] It should be noted that ferromagnetic metal components are made of ferromagnetic metals, which can be iron, cobalt, nickel, steel (an alloy of iron and carbon), etc., without specific restrictions.

[0050] Understandably, since one of the rotating member 230 and the first connecting member 210 is provided with a first magnet 251, and the other is a ferromagnetic metal element, the ferromagnetic metal element is magnetically connected to the first magnet 251, making the rotating member 230 magnetically connected to the first connecting member 210. Thus, when the rotating member 230 is rotated in a direction away from the roller body 110, the rotating member 230 can disengage from the first connecting member 210, thereby causing the smoothing member 240 to move away from the roller body 110; when the rotating member 230 is rotated in a direction close to the roller body 110, the rotating member 230 can magnetically connect to the first connecting member 210 when it rotates to a preset angle, thus limiting further rotation of the rotating member 230 and allowing the smoothing member 240 to be accurately moved to the outer periphery of the roller body 110.

[0051] Of course, in the above embodiments, the rotating part 230 can also be a ferromagnetic metal element, and the first magnet 251 can be provided on the first connecting part 210. Alternatively, magnets can be provided on the rotating part 230 and the first connecting part 210 respectively. Both of these designs can achieve magnetic connection between the rotating part 230 and the first connecting part 210. No specific restrictions are placed on the structure of the magnetic connection between the two.

[0052] like Figure 3 , Figure 4 and Figure 9 As shown, the rotating member 230 further includes a first connecting part 234, a transition part 235, and a second connecting part 236 connected in sequence. The first connecting part 234 is rotatably connected to the second connecting member 220, and the second connecting part 236 is connected to the smoothing member 240. The transition part 235 is provided with a first mounting hole 231 on the side facing the roller body 110 along the first direction X. The first magnet 251 is located in the first mounting hole 231. The first connecting member 210 abuts against the transition part 235 on the side facing away from the roller body 110 along the first direction X.

[0053] It is understood that the first magnet 251 is accommodated through the first mounting hole 231. When the rotating member 230 is rotated to a preset angle in the direction close to the roller body 110, the rotating member 230 is magnetically connected to the first connecting member 210 through the first magnet 251. At this time, the first connecting member 210 abuts against the transfer part 235 on the side away from the roller body 110 in the first direction X. In this way, under the dual action of magnetic connection and abutment, the rotation angle of the rotating member 230 is reliably positioned, so that the smoothing member 240 can be accurately moved to the outer periphery of the roller body 110 under the rotation of the rotating member 230.

[0054] like Figures 2 to 4 As shown, it should be noted that the winding device also has a third direction Z, and the first direction X, the second direction Y and the third direction Z are mutually perpendicular. By setting a transition part 235 between the first connecting part 234 and the second connecting part 236, and making the first connecting member 210 abut against the transition part 235, this structural design allows the vertical distance L2mm from the side of the first connecting member 210 facing the smoothing member 240 along the third direction Z to the first rotation axis J and the vertical distance L1mm from the second rotation axis K to the first rotation axis J to satisfy: L2>L1, thereby more effectively restricting the further rotation of the rotating member 230.

[0055] like Figures 2 to 4 As shown, in one embodiment, the smoothing mechanism 200 further includes a first plastic part 261 and a rotating shaft 262 disposed through the first plastic part 261. A groove 221 is provided on the second connecting member 220. One end of the rotating member 230 away from the smoothing member 240 is located in the groove 221 and is hinged to the groove wall of the groove 221 through the rotating shaft 262. The first plastic part 261 is rotatably connected to the rotating shaft 262 and abuts against the groove wall of the groove 221 and the rotating member 230.

[0056] For example, the material of the first plastic part 261 may be polyoxymethylene (POM), polyetheretherketone (PEEK), polyethylene terephthalate (PET), etc., without specific limitations.

[0057] It should be noted that the end of the rotating member 230 away from the smoothing member 240 is hinged to the groove wall of the groove 221 through the rotating shaft 262, so that the end of the rotating member 230 away from the smoothing member 240 is rotatably connected to the second connecting member 220.

[0058] Understandably, when the rotating part 230 and the second connecting part 220 are made of metal, their mutual friction will generate metal dust. Metal dust trapped in the electrode assembly increases the risk of short circuits. Therefore, by providing a first plastic part 261 between the rotating part 230 and the groove wall of the groove 221, the rotating part 230 will not directly contact the second connecting part 220 when it rotates relative to it, thereby reducing the possibility of metal dust generation due to friction and improving the production yield of the winding equipment. Figures 2 to 4 As shown, a gap 233 is reserved between the end of the rotating member 230 away from the smoothing member 240 and the bottom of the groove 221. This gap 233 can reduce the possibility of interference and friction between the rotating member 230 and the roller shaft 120 during rotation.

[0059] like Figures 2 to 4 As shown, the rotating member 230 is further provided with an arc surface 232 at the end away from the smoothing member 240. The arc surface 232 ensures that the rotation radius of the rotating member 230 remains unchanged during rotation, thereby further reducing the possibility of structural interference between the rotating member 230 and the roller shaft 120 during rotation.

[0060] like Figure 5 and Figure 6 As shown, in one embodiment, the second connector 220 is slidably connected to the roller 120 along the first direction X, and is magnetically connected to the first connector 210.

[0061] It is understandable that, based on the rotatable connection between the end of the rotating member 230 away from the smoothing member 240 and the second connecting member 220, and since the second connecting member 220 is slidably connected to the roller shaft 120 along the first direction X, and the second connecting member 220 is also magnetically connected to the first connecting member 210, thus, based on the smoothing member 240 being moved away from the roller body 110 by rotating the rotating member 230, by moving the second connecting member 220 to disengage it from the first connecting member 210 and slide it away from the roller body 110, the smoothing member 240 can be further moved away from the roller body 110 (e.g., by moving the second connecting member 220 to disengage it from the first connecting member 210 and slide it in a direction away from the roller body 110). Figure 6 As shown in the figure, this is a schematic diagram of the state when the smoothing member 240 moves further away from the roller body 110 as the second connecting member 220 slides, so as to leave more space for the electrode sheet to be inserted, thereby further reducing the risk of the smoothing member 240 damaging the electrode tab during the electrode sheet insertion process.

[0062] Furthermore, when the second connector 220 is moved to slide to a preset position in the direction close to the roller body 110, the second connector 220 is magnetically connected to the first connector 210, thereby achieving the positioning of the second connector 220 and enabling the smoothing member 240 to be accurately moved to the outer periphery of the roller body 110.

[0063] like Figure 8 and Figure 9 As shown, one of the first connector 210 and the second connector 220 is provided with a second magnet 252, and the other is provided with a third magnet 253 that is magnetically connected to the second magnet 252, so as to realize the magnetic connection between the first connector 210 and the second connector 220.

[0064] For example, a second magnet 252 is provided on the first connector 210 and a third magnet 253 is provided on the second connector 220; of course, it is also possible that a third magnet 253 is provided on the first connector 210 and a second magnet 252 is provided on the second connector 220.

[0065] For example, the first magnet 251 and / or the second magnet 252 can be permanent magnets (magnets), electromagnets (electromagnets) or other components with magnetic attraction capabilities, without specific limitations.

[0066] Of course, in the above embodiments, the first connector 210 may be provided with a magnet and the second connector 220 may be a ferromagnetic metal element magnetically connected to the magnet, or the second connector 220 may be provided with a magnet and the first connector 210 may be a ferromagnetic metal element magnetically connected to the magnet. Both can achieve magnetic connection between the first connector 210 and the second connector 220. No specific limitation is made on the magnetic connection structure between the two.

[0067] like Figure 3 , Figure 8 and Figure 9 As shown, the first connector 210 is provided with a second mounting hole 211 on the side away from the roller body 110 along the first direction X, and the second connector 220 is provided with a third mounting hole 222 on the side facing the roller body 110 along the first direction X. The second magnet 252 is located in the second mounting hole 211, and the third magnet 253 is located in the third mounting hole 222. The side of the first connector 210 away from the roller body 110 along the first direction X abuts against the second connector 220.

[0068] It is understood that the second magnet 252 is accommodated through the second mounting hole 211, and the third magnet 253 is accommodated through the third mounting hole 222. In this way, when the second connector 220 is moved to slide to a preset position in the direction close to the roller body 110, the second connector 220 is magnetically connected to the first connector 210. At this time, the side of the first connector 210 away from the roller body 110 along the first direction X abuts against the second connector 220. Thus, under the dual action of magnetic connection and abutment, the position of the second connector 220 is reliably positioned, so that the smoothing member 240 can be accurately moved to the outer periphery of the roller body 110.

[0069] like Figure 8 and Figure 9 As shown, one of the first connector 210 and the second connector 220 is provided with a positioning hole 223, and the other is provided with a positioning part 212. The positioning part 212 is provided through the positioning hole 223. This can improve the positioning accuracy. In the state where the second connector 220 and the first connector 210 are magnetically connected, the relative rotation of the first connector 210 and the second connector 220 is restricted, thereby improving the structural stability of the smoothing mechanism 200.

[0070] For example, the positioning part 212 may be a positioning pin, a positioning shaft, a positioning protrusion, etc., and no specific limitation is made here.

[0071] like Figure 8 and Figure 9 As shown, the second connector 220 is provided with a plurality of positioning holes 223 on the side of the roller body 110 along the first direction X, with two adjacent positioning holes 223 spaced apart. The first connector 210 is provided with a plurality of positioning parts 212 on the side of the roller body 110 along the first direction X away from the roller body 110, with two adjacent positioning parts 212 spaced apart. Each positioning part 212 is provided through a positioning hole 223.

[0072] It is understandable that by setting multiple positioning holes 223 and multiple positioning parts 212, with each positioning part 212 passing through a positioning hole 223, the relative rotation of the first connector 210 and the second connector 220 can be more effectively restricted when the second connector 220 is magnetically connected to the first connector 210.

[0073] like Figure 1 , Figure 2 and Figure 7 As shown, the roller 120 further includes a shaft 121 and a second plastic part 122. The roller 110 is rotatably connected to the shaft 121. The second plastic part 122 covers the outer periphery of the shaft 121. A first through hole 213 is provided on the first connecting member 210, and a second through hole 224 is provided on the second connecting member 220. The shaft 121 passes through the first through hole 213 and the second through hole 224. The second plastic part 122 is interference-fitted with the first through hole 213, so that the first connecting member 210 is fixedly connected to the roller 120. The second plastic part 122 is clearance-fitted with the second through hole 224, so that the second connecting member 220 is slidably connected to the roller 120.

[0074] It should be noted that "fixed connection" can be understood as: the relative positions of two objects remain unchanged under normal use conditions, that is, they will not easily separate or move relative to each other.

[0075] For example, the material of the second plastic part 122 may be polyoxymethylene (POM), polyetheretherketone (PEEK), polyethylene terephthalate (PET), etc., without specific limitations.

[0076] It is understandable that when the roller 120 and the second connector 220 are made of metal, metal dust is easily generated due to friction when the second connector 220 slides relative to the roller 120. In view of this, by providing a roller 120 with a second plastic part 122, the second plastic part 122 can reduce the possibility of metal dust being generated due to metal friction, thereby improving the production yield of the winding equipment.

[0077] It should be noted that, for those skilled in the art, the fixed connection between the first connector 210 and the roller 120 is not limited to the interference fit described above. The fixed connection can also be welding, injection molding, bonding, etc., and no specific restrictions are made here.

[0078] like Figure 2 and Figure 7 As shown, the outer contour of the second plastic part 122 is non-circular, and the second through hole 224 is a non-circular hole. This reduces the possibility of the second connector 220 rotating when sliding relative to the roller shaft 120 in the first direction X.

[0079] For example, the non-circular shape can be an ellipse or a rectangle, or something else. Figure 2 The combined shape of the circle and rectangle shown is not described in detail here.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A winding device, characterized in that, It has a first direction (X) and a second direction (Y) that are perpendicular to each other, and includes: The roller (100) includes a roller body (110) and a roller shaft (120) disposed along the first direction (X) through the roller body (110). The roller body (110) is rotatably connected to the roller shaft (120). The roller body (110) has a first rotation axis (J) parallel to the first direction (X). A smoothing mechanism (200) includes a first connector (210), a second connector (220), a rotating member (230), and a smoothing member (240). The first connector (210) and the second connector (220) are connected to the roller (120). The first connector (210) is located between the second connector (220) and the roller body (110) along the first direction (X). The smoothing member (240) is located on the outer periphery of the roller body (110). One end of the rotating member (230) is connected to the smoothing member (240), and the end of the rotating member (230) away from the smoothing member (240) is rotatably connected to the second connector (220). The rotating member (230) has a second rotation axis (K) parallel to the second direction (Y). The rotating member (230) is magnetically connected to the first connector (210).

2. The winding equipment according to claim 1, characterized in that, One of the rotating member (230) and the first connecting member (210) is provided with a first magnet (251), and the other is a ferromagnetic metal element magnetically connected to the first magnet (251).

3. The winding equipment according to claim 2, characterized in that, The rotating component (230) includes a first connecting part (234), a transition part (235), and a second connecting part (236) connected in sequence. The first connecting part (234) is rotatably connected to the second connecting part (220), and the second connecting part (236) is connected to the smoothing part (240). The transition part (235) is provided with a first mounting hole (231) on the side of the roller body (110) along the first direction (X). The first magnet (251) is located in the first mounting hole (231). The first connecting part (210) abuts against the transition part (235) on the side of the roller body (110) along the first direction (X) away from the roller body (110).

4. The winding equipment according to claim 1, characterized in that, The smoothing mechanism (200) further includes a first plastic part (261) and a rotating shaft (262) passing through the first plastic part (261). The second connecting member (220) is provided with a groove (221). The end of the rotating member (230) away from the smoothing member (240) is located in the groove (221) and is hinged to the groove wall of the groove (221) through the rotating shaft (262). The first plastic part (261) is rotatably connected to the rotating shaft (262) and abuts against the groove wall of the groove (221) and the rotating member (230).

5. The winding apparatus according to any one of claims 1 to 4, characterized in that, The second connector (220) is slidably connected to the roller (120) along the first direction (X) and magnetically connected to the first connector (210).

6. The winding device according to claim 5, characterized in that, One of the first connector (210) and the second connector (220) is provided with a second magnet (252), and the other is provided with a third magnet (253) magnetically connected to the second magnet (252).

7. The winding device according to claim 6, characterized in that, The first connector (210) has a second mounting hole (211) on the side away from the roller body (110) along the first direction (X), and the second connector (220) has a third mounting hole (222) on the side facing the roller body (110) along the first direction (X). The second magnet (252) is located in the second mounting hole (211), and the third magnet (253) is located in the third mounting hole (222). The side of the first connector (210) away from the roller body (110) along the first direction (X) abuts against the second connector (220).

8. The winding equipment according to claim 5, characterized in that, One of the first connector (210) and the second connector (220) is provided with a positioning hole (223), and the other is provided with a positioning part (212), which is disposed through the positioning hole (223).

9. The winding equipment according to claim 8, characterized in that, The second connector (220) has a plurality of positioning holes (223) on the side facing the roller body (110) along the first direction (X), with two adjacent positioning holes (223) spaced apart. The first connector (210) has a plurality of positioning parts (212) on the side away from the roller body (110) along the first direction (X), with two adjacent positioning parts (212) spaced apart. Each positioning part (212) passes through one positioning hole (223).

10. The winding apparatus according to claim 5, characterized in that, The roller (120) includes a shaft (121) and a second plastic part (122). The roller (110) is rotatably connected to the shaft (121). The second plastic part (122) covers the outer periphery of the shaft (121). The first connecting member (210) is provided with a first through hole (213), and the second connecting member (220) is provided with a second through hole (224). The shaft (121) passes through the first through hole (213) and the second through hole (224). The second plastic part (122) is interference-fitted with the first through hole (213) and clearance-fitted with the second through hole (224).

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