Anti-curling device and pole piece manufacturing equipment
By using the synchronous movement of conveyor rollers and clamping mechanisms in the lithium battery electrode manufacturing process, the problem of edge curling of electrode strips during drying was solved, achieving flat strips and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-17
AI Technical Summary
During the drying process of lithium battery electrode strips, the increased coating thickness makes the edges at both ends of the strip prone to warping and curling, leading to problems such as strip breakage, reducing production efficiency and increasing costs.
Multiple conveyor rollers and clamping mechanisms are used. The clamping mechanisms are driven by the drive mechanism to move synchronously and provide lateral tension by clamping both ends of the material belt. Combined with the edge detection mechanism and the adjustment mechanism, the material belt is kept flat during the conveying process.
It effectively prevents the electrode strip from curling during the drying process, improves production efficiency, reduces strip breakage, and lowers production costs.
Smart Images
Figure CN224000698U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery manufacturing equipment technology, and in particular to an anti-rolling device and electrode manufacturing equipment. Background Technology
[0002] Lithium-ion batteries are a common type of rechargeable battery, widely used in various electronic devices and power tools due to their high energy density, long lifespan, and low self-discharge rate. In lithium-ion battery production, positive and negative electrode slurries are coated onto the surface of foil to form electrode strips.
[0003] However, as the coating thickness gradually increases with the energy density requirements during the coating process, tensile stress is generated due to the evaporation of the slurry solvent during the drying process. This causes the edges of the electrode strip at both ends in the width direction to warp (the edges are prone to curling), resulting in problems such as strip breakage. This not only reduces production efficiency but also increases production costs. Utility Model Content
[0004] Therefore, it is necessary to provide an anti-rolling device and electrode manufacturing equipment that can prevent the electrode strip from rolling during the drying process, in order to address the problem that the electrode strip is prone to rolling.
[0005] An anti-rolling device, comprising:
[0006] Multiple conveyor rollers are arranged sequentially along the conveying direction;
[0007] Two sets of clamping mechanisms are spaced apart along the axial direction of the conveyor rollers to form a conveyor belt space. The electrode strip conveyed by the multiple conveyor rollers passes through the conveyor belt space. The two sets of clamping mechanisms clamp or release the two ends of the electrode strip in the conveyor belt space respectively.
[0008] Two drive mechanisms are provided, with each set of clamping mechanisms corresponding to one drive mechanism; in the conveying direction, the clamping mechanism is able to keep synchronized with the electrode strip conveyed by the conveying roller under the drive of the drive mechanism.
[0009] In one embodiment, the driving mechanism includes a first driving member, a driving wheel, a driven wheel, and a transmission belt. The driving wheel and the driven wheel are spaced apart along the conveying direction. The driving wheel is fixedly connected to the first driving member, and the transmission belt is sleeved over the driving wheel and the driven wheel.
[0010] The clamping mechanism is fixedly connected to the conveyor belt.
[0011] In one embodiment, each set of clamping mechanisms includes two sets of gripper groups, and each set of gripper groups includes a plurality of grippers arranged sequentially along the circumferential direction of the conveyor belt.
[0012] In the circumferential direction, the distance between each pair of adjacent jaws in each jaw group is less than the distance between two jaw groups.
[0013] In one embodiment, the anti-curling device further includes a curling detection mechanism.
[0014] The edge-rolling detection mechanism includes a light emitting end and a light receiving end, which are positioned opposite each other on both sides of the electrode strip in the axial direction.
[0015] In one embodiment, the anti-rolling device further includes an adjustment mechanism connected to two sets of clamping mechanisms, which are able to move closer to or further away from each other in the axial direction under the adjustment of the adjustment mechanism.
[0016] In one embodiment, the adjustment mechanism includes two tracks and a drive assembly. The two tracks are spaced apart in the axial direction, and the drive assembly is located between the two tracks in the axial direction. Both tracks are fixedly connected to the drive assembly. Two sets of clamping mechanisms are respectively movably disposed within the corresponding tracks.
[0017] The two tracks can move closer to or further away from each other along the axial direction under the action of the drive assembly.
[0018] In one embodiment, the track includes two straight sections and two curved sections. The two straight sections are spaced apart along the axial direction, and the two curved sections are respectively located at both ends of the straight sections along the conveying direction. Each curved section is connected to both ends of the two straight sections.
[0019] In one embodiment, the drive assembly includes a second drive member, a gear, and a rack, wherein the gear is fixedly connected to the second drive member, and the rack meshes with both ends of the gear along the conveying direction;
[0020] The rack extends along the axial direction, and the racks arranged at both ends of the gear along the conveying direction are fixedly connected to the tracks at both ends.
[0021] In one embodiment, each set of clamping mechanisms includes a jaw and a roller, the roller being connected to the jaw and rotatably disposed within the track.
[0022] An electrode manufacturing apparatus, the electrode manufacturing apparatus including the anti-rolling device as described above.
[0023] The aforementioned anti-rolling device and electrode manufacturing equipment, when the conveyor rollers transport the electrode strip through the conveyor belt space, allow two sets of clamping mechanisms to clamp the electrode strip from both ends along its width. This pulls the electrode strip outwards along its width, flattening it, reducing breakage, improving production efficiency, and lowering costs. Furthermore, because the drive mechanism can drive the clamping mechanisms to move at the same speed as the electrode strip, the two clamping mechanisms continuously provide lateral tension to the strip during its movement, keeping it flat throughout the process. This flattening effect is further ensured if the strip remains flat during the drying process. Attached Figure Description
[0024] Figure 1 This is a structural diagram of an anti-rolling device provided in an embodiment of this application;
[0025] Figure 2 A structural diagram of an anti-rolling device provided in another embodiment of this application;
[0026] Figure 3 A top view of an anti-rolling device provided in another embodiment of this application;
[0027] Figure 4 for Figure 3 A structural diagram of the anti-rolling device shown in the image from one perspective;
[0028] Figure 5 for Figure 3 Another structural view of the anti-rolling device shown in the diagram;
[0029] Figure 6 for Figure 1 Enlarged view of section A of the anti-rolling device shown in the diagram;
[0030] Figure 7 for Figure 3 A partial structural diagram of the anti-rolling device shown;
[0031] Figure 8 for Figure 7 The enlarged view of section B of the structure shown.
[0032] Explanation of reference numerals in the attached figures:
[0033] 100. Anti-rolling device; 10. Conveyor roller; 20. Clamping mechanism; 21. Gripper; 22. Roller; 30. Drive mechanism; 31. Driving wheel; 32. Driven wheel; 33. Conveyor belt; 40. Detection mechanism; 41. Transmitter; 42. Receiver; 50. Adjustment mechanism; 51. Track; 511. Straight section; 512. Curved section; 52. Drive assembly; 521. Gear; 522. Rack; 200. Electrode strip; X. Conveying direction; Y. Axial direction; L. Central axis. Detailed Implementation
[0034] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "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 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 that the first feature is at a lower horizontal level than the second feature.
[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0040] See Figure 1 One embodiment of this application provides an anti-curling device 100 for preventing warping of the edges at both ends of the electrode strip 200 in the width direction. In lithium battery production, the electrode strip 200 is often formed by coating positive and negative electrode slurries onto the surface of a highly conductive metal foil. The slurry is formed by mixing active materials (such as lithium iron phosphate, nickel cobalt manganese oxide, or graphite), conductive agents, binders, and solvents.
[0041] The anti-rolling device 100 includes multiple conveying rollers 10, which are arranged sequentially along the conveying direction X. The multiple conveying rollers 10 cooperate with the conveying direction X to convey the electrode material strip 200.
[0042] The anti-rolling device 100 also includes two sets of clamping mechanisms 20. These two sets of clamping mechanisms 20 are spaced apart along the axial direction Y of the conveyor rollers 10, forming a conveyor belt space through which the electrode strip 200, conveyed by the multiple conveyor rollers 10, passes. Specifically, the axial direction Y of the conveyor rollers 10 is parallel to the width direction of the electrode strip 200 passing through the conveyor belt space. The two sets of clamping mechanisms 20 respectively clamp or release both ends of the electrode strip 200 in the conveyor belt space. Specifically, the clamping mechanisms 20 clamp the empty foil positions (uncoated slurry positions) at both ends of the electrode strip 200.
[0043] The anti-rolling device 100 also includes two drive mechanisms 30. Each set of clamping mechanisms 20 is connected to a corresponding drive mechanism 30. The drive mechanism 30 drives the clamping mechanism 20 connected to it to move along the conveying direction X. In the conveying direction X, the clamping mechanism 20, driven by the drive mechanism 30, can keep synchronized with the electrode strip 200 conveyed by the conveyor roller 10 to prevent the electrode strip 200 from tearing. That is, when the conveyor roller 10 conveys the electrode strip 200 along the conveying direction X, if the clamping mechanism 20 clamps the end of the electrode strip 200, the drive mechanism 30 can drive the clamping mechanism 20 to keep synchronized with the electrode strip 200.
[0044] The anti-rolling device 100 provided in this application embodiment allows two sets of clamping mechanisms 20 to clamp the electrode strip 200 from both ends of its width direction when the conveyor roller 10 conveys the electrode strip 200 through the conveyor belt space. This pulls the electrode strip 200 outwards along its width direction, flattening it, reducing breakage, improving production efficiency, and lowering costs. Furthermore, since the drive mechanism 30 drives the clamping mechanisms 20 to move at the same speed as the electrode strip 200, the two sets of clamping mechanisms 20 continuously provide lateral tension to the electrode strip 200 during its movement, keeping it flat throughout the process. This flattening effect is further ensured by maintaining the electrode strip 200 flat during the drying process.
[0045] The anti-rolling device 100 also includes a controller (not shown in the figure), and the clamping mechanism 20 and the drive mechanism 30 are both connected to the controller. The controller controls the clamping mechanism 20 to clamp or release the electrode strip 200, and controls whether the drive mechanism 30 drives the clamping mechanism 20 to move, and keeps synchronized with the electrode strip 200 when the drive mechanism 30 drives the clamping mechanism 20 to move.
[0046] In some embodiments, see Figure 2The anti-curling device 100 also includes a curling detection mechanism 40, which includes a light emitting end 41 and a light receiving end 42, which are positioned opposite each other on both sides of the electrode strip 200 in the axial direction Y. Thus, when the electrode strip 200 curls or warps, the light emitted by the light emitting end 41 will be blocked by the warped portion of the electrode strip 200, and the light receiving end 42 will not receive the light emitted by the light emitting end 41, thereby determining that the electrode strip 200 has curled or warped. The controller controls the clamping mechanism 20 to clamp the electrode strip 200 and controls the drive mechanism 30 to drive the clamping mechanism 20 to move along the conveying direction X.
[0047] In some embodiments, see further reference. Figure 1 and Figure 2 The anti-rolling device 100 includes two conveying rollers 10, which are spaced apart in the conveying direction X. The clamping mechanism 20 and the driving mechanism 30 are located between the two conveying rollers 10 in the conveying direction X, making the structure of the anti-rolling device 100 compact and reducing the floor space occupied by the anti-rolling device 100.
[0048] It is conceivable that in other embodiments, the anti-rolling device 100 may also include three or more conveying rollers 10, and the specific positional relationship between the clamping mechanism 20 and the driving mechanism 30 and the conveying rollers 10 is not limited.
[0049] In some embodiments, see Figure 3 Multiple conveyor rollers 10 are arranged at intervals along a straight line. The anti-rolling device 100 has a central axis L passing through the middle of the multiple conveyor rollers 10. Two sets of clamping mechanisms 20 and two drive mechanisms 30 are symmetrically arranged on both sides of the central axis L. The central axis L coincides with the center line of the electrode strip 200. That is, the two sets of clamping mechanisms 20 and the two drive mechanisms 30 have the same structure and are arranged axially symmetrically with respect to the central axis L to ensure that the lateral tension applied by the two sets of clamping mechanisms 20 to both sides of the electrode strip 200 is balanced, reducing the offset of the electrode strip 200.
[0050] It is conceivable that in other embodiments, the structures of the two sets of clamping mechanisms 20 and the two driving mechanisms 30 may be different, or they may be asymmetrically arranged on both sides of the central axis L, which is not limited here.
[0051] In some embodiments, see further reference. Figure 1The drive mechanism 30 includes a first drive member, a drive wheel 31, a driven wheel 32, and a transmission belt 33. The drive wheel 31 and the driven wheel 32 are spaced apart along the conveying direction X. The drive wheel 31 is fixedly connected to the first drive member, and the transmission belt 33 is sleeved over the drive wheel 31 and the driven wheel 32. The clamping mechanism 20 is fixedly connected to the transmission belt 33. Thus, when the first drive member is activated, it drives the drive wheel 31 to rotate, thereby driving the transmission belt 33 to move, which in turn drives the clamping mechanism 20 to move along the conveying direction X. Optionally, the first drive member can be a motor or a cylinder, etc.
[0052] Because the conveyor belt 33 has a ring structure, in addition to driving the clamping mechanism 20 to move along the conveying direction X, the conveyor belt 33 can also drive the clamping mechanism 20 to move in the opposite direction along the conveying direction X, so that the clamping mechanism 20 returns to its initial position. In this way, the clamping mechanism 20 can return to its initial position (…). Figure 1 The electrode strip 200 is clamped at the position indicated by reference numeral 21, and moves synchronously with the electrode strip 200 to the first position. Figure 3 When the electrode strip 200 is loosened at the position circled by the number A, it is then returned to the initial position to clamp the electrode strip 200 and loosened again at the first position. This process is repeated to improve work efficiency.
[0053] In other embodiments, the drive mechanism 30 can also be configured in other ways, as long as it can achieve the purpose of driving the clamping mechanism 20 to move along the conveying direction X. For example, the drive mechanism 30 can omit the driving wheel 31, the driven wheel 32, and the conveyor belt 33, and only include the first drive member. The clamping mechanism 20 is directly connected to the first drive member, and the first drive member drives the clamping mechanism 20 to move along the conveying direction X. In this case, the first drive member can be a cylinder.
[0054] Further reading Figure 1 Each clamping mechanism 20 includes multiple grippers 21, which are spaced apart along the circumferential direction of the conveyor belt 33. When it is necessary to flatten the electrode strip 200, at least some of the grippers 21 of the clamping mechanism 20 clamp the end of the electrode strip 200 to cooperate with the grippers 21 of another set of clamping mechanisms 20 to provide lateral tension to flatten the electrode strip 200.
[0055] Of course, in some other embodiments, each clamping mechanism 20 may also include only one gripper 21, which is not limited here.
[0056] Specifically, each clamping mechanism 20 includes two sets of gripper groups, and each gripper group includes multiple grippers 21 arranged sequentially along the circumferential direction of the conveyor belt 33. In the circumferential direction of the conveyor belt 33, the distance between two adjacent grippers 21 in each gripper group is smaller than the distance between two gripper groups. In this way, the two sets of gripper groups can alternately be positioned close to the side of the electrode strip 200, ensuring that the grippers 21 can clamp and flatten the electrode strip 200 as needed, avoiding the electrode strip 200 waiting for the grippers 21, thus improving work efficiency.
[0057] It should be noted that the number of grippers 21 in each gripper group can be set as needed. For example, in some specific embodiments, each gripper group includes 5 grippers 21. Figure 1 The five grippers 21 on the inner side (the side closer to the electrode strip 200 in the Y-axis direction) form one gripper group, and the five grippers 21 on the outer side (the side farther away from the electrode strip 200 in the Y-axis direction) form another gripper group.
[0058] In this application, the specific structure of the gripper 21 is not limited, as long as it can clamp the electrode strip 200 in the thickness direction. In some embodiments, the gripper 21 may include a first clamping plate and a second clamping plate, which can move closer to or further away from each other to clamp or release the electrode strip 200 in the thickness direction.
[0059] Continue reading Figure 2 The anti-rolling device 100 also includes an adjustment mechanism 50, which is connected to two sets of clamping mechanisms 20. The two sets of clamping mechanisms 20 can move closer to or further apart from each other along the axial Y direction of the conveyor roller 10 under the adjustment of the adjustment mechanism 50. That is, the distance between the two sets of clamping mechanisms 20 along the axial Y direction of the conveyor roller 10 changes under the adjustment of the adjustment mechanism 50. Thus, by changing the distance between the two sets of clamping mechanisms 20 along the axial Y direction, the lateral tension applied to the electrode strip 200 by the two sets of clamping mechanisms 20 can be changed (excessive lateral tension will damage the electrode strip 200, while insufficient lateral tension will not achieve the desired flattening effect), thereby controlling the flattening effect of the electrode strip 200.
[0060] Specifically, the controller can control the adjusting mechanism 50 to adjust the spacing of the two sets of clamping mechanisms 20 in the axial Y direction based on the running speed of the electrode strip 200, the relationship between the actual value and the preset value of the lateral tension provided to the electrode strip 200 by the two sets of clamping mechanisms 20, etc.
[0061] In some embodiments, see Figure 4 and Figure 5The adjusting mechanism 50 includes two tracks 51 and a drive assembly 52. The two tracks 51 are spaced apart along the Y-axis, and the drive assembly 52 is located between the two tracks 51 along the Y-axis. Both tracks 51 are fixedly connected to the drive assembly 52, and two sets of clamping mechanisms 20 are movably disposed within their respective tracks 51. The two tracks 51 can move closer or further apart along the Y-axis under the action of the drive assembly 52.
[0062] Since the drive assembly 52 can drive the two tracks 51 to move closer or further apart along the axial Y direction, and the two sets of clamping mechanisms 20 are respectively located within the corresponding tracks 51, when the two tracks 51 move closer or further apart along the axial Y direction, the tracks 51 drive the clamping mechanisms 20 located within them to move closer or further apart, thereby achieving the purpose of adjusting the two sets of clamping mechanisms 20 along the axial Y direction, that is, adjusting the magnitude of the lateral tension applied to the electrode strip 200 by the two sets of clamping mechanisms 20. Furthermore, since the two sets of clamping mechanisms 20 are movably located within the tracks 51, it can be seen that the track 51 is only provided to facilitate the adjustment of the distance between the two sets of clamping mechanisms 20 along the axial Y direction, and does not affect the movement of the clamping mechanisms 20 in the conveying direction X.
[0063] It is conceivable that in other embodiments, the adjusting mechanism 50 may also adopt other methods, such as setting the adjusting mechanism 50 to only include the driving component 52, which is directly connected to the clamping mechanism 20, and the driving component 52 directly drives the two sets of clamping mechanisms 20 to move closer or further apart. When the driving component 52 is directly connected to the clamping mechanism 20, the driving component 52 will not interfere with the driving mechanism 30 driving the clamping mechanism 20 to move along the conveying direction X.
[0064] Specifically, two tracks 51 are symmetrically arranged on both sides of the central axis L. Since the center line of the electrode strip 200 coincides with the central axis L, the central axis L is used as a reference during adjustment to ensure that the two tracks 51 are always at the same distance from the central axis L, thereby ensuring that the electrode strip 200 is subjected to uniform force in the width direction.
[0065] It should be noted that when the drive mechanism 30 includes a first drive member, a drive wheel 31, a driven wheel 32, and a transmission belt 33, the clamping mechanism 20 is connected to the transmission belt 33. When the positions of the two tracks 51 change in the axial Y direction, the positions of the two sets of clamping mechanisms 20 also change in the axial Y direction. Because the transmission belt 33 is relatively soft, it can deform accordingly with the different positions of the clamping mechanisms 20, without restricting the movement of the clamping mechanisms 20. Of course, in some other embodiments, when the drive mechanism 30 is rigidly connected to the clamping mechanism 20, the drive mechanism 30 also moves with the clamping mechanism 20 when the clamping mechanism 20 moves with the tracks 51.
[0066] Continue reading Figure 4The track 51 includes two straight sections 511 and two curved sections 512. The two straight sections 511 are spaced apart along the axial direction Y, and the two curved sections 512 are respectively located at both ends of the straight sections 511 along the conveying direction X. Each curved section 512 is connected to both ends of the two straight sections 511. In this way, the clamping mechanism 20 can make a circular motion within the track 51, and when the clamping mechanism 20 moves within the straight sections 511 inside the track 51, it can clamp the electrode strip 200 and keep it moving synchronously with the electrode strip 200 under the action of the drive mechanism 30.
[0067] In some specific embodiments, when the drive mechanism 30 includes an annular conveyor belt 33, the shape of the conveyor belt 33 is adapted to the shape of the track 51 so that the clamping mechanism 20 can move within the annular track 51 under the drive of the conveyor belt 33.
[0068] It is conceivable that in other embodiments, the shape of the track 51 is not limited, such as the track 51 may be configured as a straight strip extending along the conveying direction X.
[0069] See Figures 6-8 The clamping mechanism 20 also includes a roller 22, which is connected to the gripper 21 and is rotatably disposed within the track 51. The rotatable disposal of the roller 22 within the track 51 reduces friction and facilitates the movement of the gripper 21 along the trajectory of the track 51.
[0070] In some embodiments, see further reference. Figure 4 The drive assembly 52 includes a second drive member, a gear 521, and a rack 522. The gear 521 is fixedly connected to the second drive member, and the racks 522 mesh with both ends of the gear 521 along the conveying direction X. The racks 522 extend along the axial direction Y, and the racks 522 arranged at both ends of the gear 521 along the conveying direction X are fixedly connected to the rails 51 at both ends. Thus, the second drive member drives the gear 521 to rotate, and the gear 521 pulls the two racks 522 to move relative to each other along the axial direction Y. The two racks 522 drive the two rails 51 to move closer or further apart along the axial direction Y, thereby adjusting the distance between the two sets of clamping mechanisms 20 in the axial direction Y, and thus adjusting the magnitude of the lateral tension provided by the two sets of clamping mechanisms 20 to the electrode strip 200.
[0071] Optionally, please continue reading Figure 4 The adjusting mechanism 50 includes two drive components 52, which are spaced apart in the conveying direction X. The gears 521 of the two drive components 52 are respectively connected to the two ends of the track 51 in the conveying direction X. Under the action of the two drive components 52, the track 51 moves synchronously at both ends in the conveying direction X, ensuring that the two tracks 51 are always parallel, thereby guaranteeing the accuracy of the lateral tension applied to the electrode strip 200 by the two sets of clamping mechanisms 20.
[0072] It is conceivable that in other embodiments, the drive component 52 can be configured in other ways, as long as it can achieve the effect of adjusting the axial Y-distance between the two tracks 51. For example, the adjustment mechanism 50 can be configured as a telescopic rod structure, with both ends of the telescopic rod structure connected to the two tracks 51 respectively. When the telescopic rod structure extends, the two tracks 51 move away from each other in the axial Y direction, and when the telescopic rod structure retracts, the two tracks 51 move closer together in the axial Y direction.
[0073] Another embodiment of this application provides an electrode manufacturing apparatus, including the aforementioned anti-rolling device 100. Since the anti-rolling device 100 has beneficial effects, the electrode manufacturing apparatus including the anti-rolling device 100 has the same beneficial effects, which will not be described in detail here.
[0074] Optionally, the electrode manufacturing equipment also includes a drying device with a drying chamber, through which the electrode strip 200 is dried under the conveying action of the conveyor roller 10. Generally, due to the higher air frequency and temperature in the latter half of the drying chamber, the solvent evaporates rapidly, causing the slurry particles on the electrode strip 200 to shrink, leading to foil bending or even film cracking. Therefore, edge curling or warping of the electrode strip 200 often occurs in the latter half of the drying chamber. Therefore, the aforementioned edge curling detection mechanism 40, clamping mechanism 20, and driving mechanism 30 can be located in the latter half of the drying chamber to ensure that the electrode strip 200 remains flat during the drying process.
[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0076] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An anti-roll device, characterized in that, The application relates to a winding preventing device for a pole piece material belt. The winding preventing device comprises a plurality of conveying rollers (10) arranged in sequence along a conveying direction (X); two groups of clamping mechanisms (20) are arranged in the axial direction (Y) of the conveying rollers (10) and form a belt conveying space, a pole piece material belt (200) conveyed by the plurality of conveying rollers (10) passes through the belt conveying space, and the two groups of clamping mechanisms (20) clamp or release two ends of the pole piece material belt (200) in the belt conveying space respectively; and two driving mechanisms (30) are correspondingly connected to the two groups of clamping mechanisms (20), and the clamping mechanisms (20) can keep synchronization with the pole piece material belt (200) conveyed by the conveying rollers (10) under the driving of the driving mechanisms (30) in the conveying direction (X). The driving mechanism (30) comprises a first driving member, a driving wheel (31), a driven wheel (32) and a transmission belt (33), the driving wheel (31) and the driven wheel (32) are arranged in sequence along the conveying direction (X), the driving wheel (31) is fixedly connected with the first driving member, and the transmission belt (33) is sleeved on the driving wheel (31) and the driven wheel (32). The clamping mechanism (20) is fixedly connected with the transmission belt (33).
2. The roll-over prevention device of claim 1, wherein Each group of clamping mechanisms (20) comprises two groups of clamping jaw groups, each group of clamping jaw groups comprises a plurality of clamping jaws (21) arranged in sequence along a surrounding direction of the transmission belt (33). In the surrounding direction, the interval between every two adjacent clamping jaws (21) in each group of clamping jaw groups is smaller than the interval between two groups of clamping jaw groups.
3. The roll-over prevention device of claim 2, wherein The winding preventing device further comprises a curling detection mechanism (40), The curling detection mechanism (40) comprises a light emitting end (41) and a light receiving end (42), and the light emitting end (41) and the light receiving end (42) are arranged opposite to both sides of the pole piece material belt (200) in the axial direction (Y).
4. The roll-over prevention device of claim 1 wherein, The winding preventing device further comprises an adjusting mechanism (50), the adjusting mechanism (50) is connected with the two groups of clamping mechanisms (20), and the two groups of clamping mechanisms (20) can approach or move away from each other in the axial direction (Y) under the adjusting action of the adjusting mechanism (50). The adjusting mechanism (50) comprises two tracks (51) and a driving assembly (52), the two tracks (51) are arranged in sequence in the axial direction (Y), the driving assembly (52) is located between the two tracks (51) in the axial direction (Y), and the two tracks (51) are fixedly connected with the driving assembly (52); and the two groups of clamping mechanisms (20) are movably arranged in the corresponding tracks (51).
5. An anti-roll device according to any one of claims 1 to 4, wherein, The two tracks (51) can approach or move away from each other in the axial direction (Y) under the action of the driving assembly (52).
6. The roll-over prevention device of claim 5, wherein 7. The roll-over prevention device of claim 6, wherein The track (51) comprises two straight sections (511) and two curved sections (512), the two straight sections (511) are arranged at intervals along the axial direction (Y), and the two curved sections (512) are arranged at the two ends of the straight sections along the conveying direction respectively, and the two ends of each curved section (512) are connected with the two straight sections (511) respectively.
8. The roll-over prevention device of claim 6 wherein, The driving assembly (52) comprises a second driving member, a gear (521) and a rack (522), the gear (521) is fixedly connected with the second driving member, and the gear (521) is engaged with the rack (522) at both ends along the conveying direction (X). The rack (522) extends along the axial direction (Y), and the racks (522) at both ends of the gear (521) along the conveying direction (X) are fixedly connected with the tracks (51) at both ends respectively.
9. The roll-over prevention device of claim 6 wherein, Each set of the clamping mechanism (20) comprises a clamping jaw (21) and a roller (22), the roller (22) is connected with the clamping jaw (21) and is arranged to roll in the track (51).
10. An electrode tab manufacturing apparatus characterized by comprising: The pole piece manufacturing equipment comprises the anti-curling device according to any one of claims 1-9.