A pole piece anti-wrinkle device

By designing a pole-plate wrinkle-proof device including a track mechanism, a wrinkle-proof mechanism, an angle adjustment mechanism and a belt avoidance mechanism, the problems of pole-plate wrinkle and short circuit in lithium battery production are solved, and the product quality and production efficiency are significantly improved.

CN222749501UActive Publication Date: 2025-04-11ZHUHAI KEHENGHAONENG INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202421352218.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-04-11
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

During the production process of lithium batteries, the electrode sheet is prone to folding due to external environment and equipment errors after rolling, especially the wrinkles of the electrodes may cause diaphragm puncture and cause battery short circuit. Anti-wrinkle devices that are not installed or inconvenient to use in existing equipment are difficult to effectively prevent this problem.

Method used

An extreme sheet wrinkle prevention device is designed, including a rail mechanism, a wrinkle prevention mechanism, an angle adjustment mechanism and a belt avoidance mechanism. The anti-wrinkle mechanism is provided at the bottom of the angle adjustment mechanism, and is rotatably connected to it, and is inclined to the direction of the movement of the pole sheet to prevent the pole sheet from folding.

Benefits of technology

Through this device, the pole sheet eliminates wrinkles after being discharged from the roll, greatly improving yield and production efficiency, and avoiding the occurrence of battery short circuit.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a pole piece wrinkle prevention device, comprising a track mechanism, an anti-wrinkle mechanism, an angle adjustment mechanism and a belt threading avoidance mechanism, wherein the track mechanism is arranged above the pole piece movement direction; the angle adjustment mechanism and the belt threading avoidance mechanism are slidably connected to the track mechanism, and the two are connected to each other, and the belt threading avoidance mechanism drives the angle adjustment mechanism to slide along the track mechanism; the anti-wrinkle mechanism is arranged at the bottom of the angle adjustment mechanism and is rotationally connected thereto, and the connection between the anti-wrinkle mechanism and the pole piece is inclined to the movement direction of the pole piece. The utility model can mobilize the angle adjustment mechanism away from the pole piece when the battery pole piece is threaded through the arrangement of the belt threading avoidance mechanism, so as to facilitate the passage of the belt threading rod. After the threading is completed, the angle adjustment mechanism is mobilized to reset, so as to avoid manual adjustment of the position of the angle adjustment mechanism each time the belt is threaded, thereby improving work efficiency.
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Description

Technical Field

[0001] The present application relates to the technical field of battery processing, and in particular to a pole piece anti-slip device. Background Art

[0002] In the production process of lithium batteries, after the pole pieces are rolled, they may wrinkle during the traction process due to various problems such as external environmental factors and equipment installation errors. In particular, the wrinkles of the pole ears may cause puncture of the diaphragm and cause a short circuit in the battery.

[0003] Among the existing battery production equipment, some equipment is not equipped with anti-wrinkle devices, or uses arc rollers to prevent wrinkles. However, the arc rollers are perpendicular to the direction of movement of the pole pieces, which makes it difficult to achieve the anti-wrinkle effect and is also inconvenient to use. Utility Model Content

[0004] Based on this, it is necessary to provide a pole piece anti-wrinkle device to overcome the defects of the anti-wrinkle device in the existing equipment, which is inconvenient to use and has poor effect.

[0005] A pole piece wrinkle prevention device comprises: a track mechanism, an anti-wrinkle mechanism, an angle adjustment mechanism and a belt-threading avoidance mechanism, wherein the track mechanism is arranged above the pole piece movement direction; the angle adjustment mechanism and the belt-threading avoidance mechanism are slidably connected to the track mechanism, and the two are connected to each other, and the belt-threading avoidance mechanism drives the angle adjustment mechanism to slide along the track mechanism; the anti-wrinkle mechanism is arranged at the bottom of the angle adjustment mechanism and is rotationally connected thereto, and the connection between the anti-wrinkle mechanism and the pole piece is inclined to the movement direction of the pole piece.

[0006] As a preferred embodiment of the pole piece anti-wrinkle device in the utility model, the track mechanism includes a mounting plate, a guide rail mounting seat and a guide rail, and the guide rail is arranged above the pole piece movement direction and perpendicular to its axial direction; the two ends of the guide rail are connected to the equipment frame through the guide rail mounting seat and the mounting plate in turn.

[0007] As a preferred embodiment of the anti-wrinkle device for the pole piece in the utility model, the anti-wrinkle mechanism includes a clamping roller assembly, a roller seat and a first driving mechanism, the clamping roller assembly is rotatably connected to one side of the roller seat; the first driving mechanism is arranged on the other side of the roller seat through a cylinder seat, and its output end is rotatably connected to the clamping roller assembly through a rotating block.

[0008] As a preferred embodiment of the electrode wrinkle prevention device of the utility model, the clamping roller assembly includes a lower aluminum clamping roller, an upper rubber clamping roller and a rotating shaft, one end of the lower aluminum clamping roller is rotatably connected to a roller seat; the upper rubber clamping roller is connected to one end of the rotating shaft through a rubber roller bracket; the other end of the rotating shaft passes through the roller seat and is connected to a rotating block.

[0009] As a preferred embodiment of the pole piece wrinkle prevention device in the utility model, after the lower aluminum clamping roller and the upper rubber clamping roller are connected to the pole piece, the axial direction of the lower aluminum clamping roller and the upper rubber clamping roller is inclined to the movement direction of the pole piece.

[0010] As a preferred embodiment of the pole piece wrinkle prevention device of the utility model, the angle adjustment mechanism includes a rotating disk, a rotating connecting shaft, a connecting seat and a guide block, one side of the guide block is slidably connected to the track mechanism; one end of the rotating disk passes through the guide block from top to bottom and is connected to the rotating connecting shaft; the connecting seat is arranged at the bottom of the rotating connecting shaft.

[0011] As a preferred embodiment of the pole piece wrinkle prevention device of the utility model, a pointer is provided at the other end of the rotating disk, and a scale is provided at the top of the guide block at a position corresponding to the pointer.

[0012] As a preferred embodiment of the pole piece wrinkle prevention device of the utility model, handles are provided on the other two sides of the guide block.

[0013] As a preferred embodiment of the pole piece wrinkle prevention device of the utility model, the belt threading avoidance mechanism includes a second driving mechanism, a connecting block and a slider. The second driving mechanism is fixedly connected to the slider through a fixing block, and its output end is connected to the angle adjustment mechanism through a connecting block. One side of the slider is slidably connected to the track mechanism.

[0014] As a preferred embodiment of the pole piece wrinkle prevention device of the utility model, a track clamp is provided on the slider.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a belt-threading avoidance mechanism, and when the battery pole piece is threaded, the angle adjustment mechanism can be adjusted away from the pole piece, so as to facilitate the passage of the belt-threading rod. After the belt threading is completed, the angle adjustment mechanism is adjusted to reset, and the position of the angle adjustment mechanism can be avoided from being manually adjusted each time the belt is threaded, thereby improving work efficiency.

[0017] The utility model eliminates the wrinkle phenomenon of the pole piece after it leaves the rolling roller by setting the connection between the anti-wrinkle mechanism and the pole piece inclined to the moving direction of the pole piece, greatly guarantees the yield rate and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the pole piece anti-wrinkle device in the embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the overall structure of the anti-wrinkle mechanism in the embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the overall structure of the angle adjustment mechanism in the embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of the overall structure of the belt-threading avoidance mechanism in the embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the structure when the clamping roller assembly is connected to the pole piece in the embodiment of the present application;

[0024] Description of reference numerals:

[0025] 11. Mounting plate;

[0026] 12. Guide rail mounting seat;

[0027] 13. Guide rails;

[0028] 14. Anti-wrinkle mechanism; 141. Lower aluminum clamping roller; 142. Upper rubber clamping roller; 143. Rubber roller bracket; 144. Rotating shaft; 145. Rotating block; 146. Roller seat; 147. First driving mechanism; 148. Cylinder seat;

[0029] 15. Angle adjustment mechanism; 151. Rotating disk; 152. Handle; 153. Rotating connecting shaft; 154. Connecting seat; 155. Guide block; 156. Pointer;

[0030] 16. Belt threading avoidance mechanism; 161. Second driving mechanism; 162. Fixed block; 163. Connecting block; 164. Sliding block; 165. Track clamp. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] Example

[0038] This embodiment provides a pole piece anti-wrinkle device, such as Figure 1 As shown, it includes: a track mechanism, an anti-wrinkle mechanism 14, an angle adjustment mechanism 15 and a belt-threading avoidance mechanism 16, the track mechanism is arranged above the direction of movement of the pole piece and is connected to the equipment frame; the angle adjustment mechanism 15 and the belt-threading avoidance mechanism 16 are slidably connected to the track mechanism, and the two are connected to each other, the angle adjustment mechanism 15 and the belt-threading avoidance mechanism 16 each include a pair, and the belt-threading avoidance mechanism 16 drives the angle adjustment mechanism 15 to slide along the track mechanism when it works; the anti-wrinkle mechanism 14 is arranged at the bottom of the angle adjustment mechanism 15 and is rotatably connected thereto, the angle adjustment mechanism 15 can adjust the angle of the connection between the anti-wrinkle mechanism 14 and the pole piece, and the connection between the anti-wrinkle mechanism 14 and the pole piece is inclined to the direction of movement of the pole piece.

[0039] In this embodiment, the track mechanism includes a mounting plate 11, a guide rail mounting seat 12 and a guide rail 13. The guide rail 3 is arranged above the direction of movement of the pole piece and perpendicular to its axial direction; the two ends of the guide rail 13 are connected to the equipment frame through the guide rail mounting seat 12 and the mounting plate 11 in sequence. The track mechanism is used to fix the anti-wrinkle mechanism 14, the angle adjustment mechanism 15 and the belt threading avoidance mechanism 16 above the direction of the pole piece movement in the opposite direction.

[0040] like Figure 2 As shown, the anti-wrinkle mechanism 14 includes a clamping roller assembly, a roller seat 146 and a first driving mechanism 147. The clamping roller assembly is used to clamp the pole piece and is rotationally connected to one side of the roller seat 146. The first driving mechanism 147 is arranged on the other side of the roller seat 146 through a cylinder seat 148, and its output end is rotationally connected to the clamping roller assembly through a rotating block 145. The movement of the first driving mechanism 147 can drive part of the clamping roller assembly to rotate.

[0041] In this embodiment, the clamping roller assembly includes a lower aluminum clamping roller 141, an upper rubber clamping roller 142 and a rotating shaft 144. One end of the lower aluminum clamping roller 141 is rotatably connected to a roller seat 146; the upper rubber clamping roller 142 is connected to one end of the rotating shaft 144 through a rubber roller bracket 143; the other end of the rotating shaft 144 passes through the roller seat 146 and is connected to a rotating block 145. The movement of the first driving mechanism 147 can drive the rotating shaft 144 to rotate, so that the upper rubber clamping roller 142 is close to or away from the lower aluminum clamping roller 141.

[0042] In this embodiment, by setting the lower aluminum clamping roller 141 and the upper rubber clamping roller 142, the pole piece and the clamping roller assembly are in flexible contact, which increases the friction between the pole piece and the clamping roller assembly and has a better anti-wrinkle effect.

[0043] like Figure 5 As shown, the arrow represents the direction of movement of the pole piece. After the lower aluminum clamping roller 141 and the upper rubber clamping roller 142 are connected to the pole piece, the axial direction of the lower aluminum clamping roller 141 and the upper rubber clamping roller 142 is inclined to the direction of movement of the pole piece. A pair of the lower aluminum clamping roller 141 and the upper rubber clamping roller 142 are distributed in an eight-shaped shape on the pole piece, which is not easy to break the belt and has a better anti-wrinkle effect, which greatly guarantees the yield rate and improves production efficiency.

[0044] like Figure 3 As shown, the angle adjustment mechanism 15 includes a rotating disk 151, a rotating connecting shaft 153, a connecting seat 154 and a guide block 155, one side of the guide block 155 is slidably connected to the track mechanism; one end of the rotating disk 151 passes through the guide block 155 from top to bottom and is connected to the rotating connecting shaft 153; the connecting seat 154 is arranged at the bottom of the rotating connecting shaft 153. The rotation of the rotating disk 151 drives the connecting seat 154 to rotate.

[0045] In this embodiment, a pointer 156 is provided at the other end of the rotating disk 151 , and a scale is provided at the top of the guide block 155 at a position corresponding to the pointer 156 . This structure facilitates the operator to better grasp the rotation angle of the anti-wrinkle mechanism 14 .

[0046] In this embodiment, the guide block 155 is provided with handles 152 on both sides, which facilitates the operator to rotate the rotating disk 151.

[0047] like Figure 4 As shown, the belt threading avoidance mechanism 16 includes a second driving mechanism 161, a connecting block 163 and a slider 164. The second driving mechanism 161 is fixedly connected to the slider 164 through a fixing block 162, and its output end is connected to the angle adjustment mechanism 15 through the connecting block 163. One side of the slider 164 is slidably connected to the track mechanism.

[0048] In this embodiment, a rail clamp 165 is provided on the slider 164, and the structure is used to fix the belt-threading avoidance mechanism 16 to the slide rail 13, and at the same time, it is convenient to change the spacing between the belt-threading avoidance mechanisms 16 to adapt to pole pieces of different widths.

[0049] Working principle: When the battery pole piece is being threaded, the threading avoidance mechanism 16 pushes the anti-wrinkle mechanism 14 and the angle adjustment mechanism 15 away from the pole piece to facilitate the threading rod to pass through. After threading is completed, the threading avoidance mechanism 16 pushes the anti-wrinkle mechanism 14 and the angle adjustment mechanism 15 close to the pole piece. There is no need to adjust the position of the anti-wrinkle mechanism 14 every time the strap is threaded, thereby increasing work efficiency. Then manually adjust the angle adjustment mechanism 15 so that the anti-wrinkle mechanism 14 is in an eight-shaped shape opposite to the direction of movement of the pole piece. Finally, the first drive mechanism 147 is turned on, so that the upper clamping roller 142 presses down to clamp the pole piece. After passing through the clamping roller assembly, the pole piece moves to both sides to achieve an anti-wrinkle effect.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0051] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A pole piece anti-wrinkle device, characterized in that: include: A track mechanism, an anti-wrinkle mechanism (14), an angle adjustment mechanism (15) and a belt-threading avoidance mechanism (16), wherein the track mechanism is arranged above the direction of movement of the pole piece; the angle adjustment mechanism (15) and the belt-threading avoidance mechanism (16) are slidably connected to the track mechanism, and the two are connected to each other, and the belt-threading avoidance mechanism (16) drives the angle adjustment mechanism (15) to slide along the track mechanism; the anti-wrinkle mechanism (14) is arranged at the bottom of the angle adjustment mechanism (15) and is rotatably connected thereto, and the connection between the anti-wrinkle mechanism (14) and the pole piece is inclined to the direction of movement of the pole piece.

2. The pole piece anti-wrinkle device according to claim 1, characterized in that: The track mechanism comprises a mounting plate (11), a guide rail mounting seat (12) and a guide rail (13); the guide rail (13) is arranged above the direction of movement of the pole piece and perpendicular to its axial direction; the two ends of the guide rail (13) are connected to the equipment frame through the guide rail mounting seat (12) and the mounting plate (11) in sequence.

3. The pole piece anti-wrinkle device according to claim 1, characterized in that: The anti-wrinkle mechanism (14) comprises a clamping roller assembly, a roller seat (146) and a first driving mechanism (147); the clamping roller assembly is rotationally connected to one side of the roller seat (146); the first driving mechanism (147) is arranged on the other side of the roller seat (146) through a cylinder seat (148), and its output end is rotationally connected to the clamping roller assembly through a rotating block (145).

4. The pole piece anti-wrinkle device according to claim 3, characterized in that: The clamping roller assembly comprises a lower aluminum clamping roller (141), an upper rubber clamping roller (142) and a rotating shaft (144); one end of the lower aluminum clamping roller (141) is rotatably connected to a roller seat (146); the upper rubber clamping roller (142) is connected to one end of the rotating shaft (144) via a rubber roller bracket (143); and the other end of the rotating shaft (144) passes through the roller seat (146) and is connected to a rotating block (145).

5. The pole piece anti-wrinkle device according to claim 4, characterized in that: After the lower aluminum clamping roller (141) and the upper rubber clamping roller (142) are connected to the pole piece, the axial directions of the lower aluminum clamping roller (141) and the upper rubber clamping roller (142) are inclined to the movement direction of the pole piece.

6. The pole piece anti-wrinkle device according to claim 1, characterized in that: The angle adjustment mechanism (15) comprises a rotating disk (151), a rotating connecting shaft (153), a connecting seat (154) and a guide block (155); one side of the guide block (155) is slidably connected to a track mechanism; one end of the rotating disk (151) passes through the guide block (155) from top to bottom and is connected to the rotating connecting shaft (153); the connecting seat (154) is arranged at the bottom of the rotating connecting shaft (153).

7. The pole piece anti-wrinkle device according to claim 6, characterized in that: A pointer (156) is provided at the other end of the rotating disk (151), and a scale is provided at a position corresponding to the pointer (156) on the top of the guide block (155).

8. The pole piece anti-wrinkle device according to claim 7, characterized in that: The guide block (155) is provided with handles (152) on the other two sides.

9. The pole piece anti-wrinkle device according to claim 1, characterized in that: The belt threading avoidance mechanism (16) comprises a second driving mechanism (161), a connecting block (163) and a sliding block (164); the second driving mechanism (161) is fixedly connected to the sliding block (164) via a fixing block (162); an output end thereof is connected to the angle adjustment mechanism (15) via a connecting block (163); and one side of the sliding block (164) is slidably connected to a track mechanism.

10. The pole piece anti-wrinkle device according to claim 9, characterized in that: The slide block (164) is provided with a track clamp (165).