Edge bulging prevention device for lithium battery pole piece coating machine

Abstract

The utility model provides an anti-edge-bulging device for a lithium battery pole piece coating machine. The anti-edge-bulging device comprises a frame body and at least one rotating roller mechanism which is used for being in contact with a raised edge part of a lithium battery pole piece, each rotating roller mechanism is rotatably arranged on the frame body; each rotating roller mechanism comprises a support arm, a connecting rod and a rotating roller module; the connecting rod is connected with the rotating roller module; one end of the support arm is adjustably connected with the connecting rod, and the other end of the support arm is rotatably and movably connected with the frame body, so that the distance between the roller module and the raised edge part of the lithium battery pole piece is adjustable. The anti-edge-bulging device for the lithium battery pole piece coating machine is high in universality and practicability, and can effectively prevent edge bulging of the two sides of the lithium battery pole piece in the coating process, so that the coating quality and efficiency of the lithium battery pole piece are improved, and the quality of the lithium battery pole piece rolled as a raw material after being coated is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and more specifically, to an anti-drumping device for a lithium battery electrode coating machine. Background Technology

[0002] Lithium-ion batteries have been widely used in numerous mobile devices in defense, industry, and civilian sectors due to their advantages such as high energy density, small size, long lifespan, and low self-discharge. In recent years, with the development of the manufacturing industry, the lithium-ion production process has gradually become more streamlined and automated. Among these processes, the coating of lithium battery electrodes mostly uses extrusion coating heads.

[0003] The lithium battery electrode coating device with an extrusion coating head is the next step after the preparation of the slurry. The main purpose of this step is to uniformly coat the positive and negative current collectors with a slurry that has good stability, good viscosity and good fluidity. Electrode coating is of great significance to the capacity, consistency and safety of lithium batteries.

[0004] However, during the use of lithium battery electrode coating equipment, the aluminum foil in the conveying state often has local depressions or wrinkles, which affects the uniformity and fullness of coating. At the same time, the positive electrode paste on the coated aluminum foil is unevenly distributed, and due to the influence of the aluminum foil's own tilt, the aluminum foil is prone to bulging on both sides. This greatly affects the quality and efficiency of lithium battery electrode coating, and also affects the quality of the lithium battery electrode after coating and its winding as raw material. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies in the prior art and provide an anti-bulging device for a lithium battery electrode coating machine. This anti-bulging device is highly versatile and practical, and can effectively prevent the phenomenon of bulging on both sides during the lithium battery electrode coating process, thereby improving the quality and efficiency of lithium battery electrode coating and improving the quality of the lithium battery electrode after coating and its winding as raw material.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an anti-drumping device for a lithium battery electrode coating machine, characterized in that: it includes a frame and at least one rotating roller mechanism for contacting the protruding edge portion of the lithium battery electrode; each of the rotating roller mechanisms is rotatably mounted on the frame; each rotating roller mechanism includes a support arm, a connecting rod, and a rotating roller module; the connecting rod is connected to the rotating roller module; one end of the support arm is adjustablely connected to the connecting rod, and the other end is rotatably and movablely connected to the frame, so that the distance between the rotating roller module and the protruding edge portion of the lithium battery electrode is adjustable.

[0007] In the above solution, the rotating roller module of this invention can be rotated via a support arm, allowing it to contact and flatten the protruding edges of lithium battery electrode sheets at different heights. Furthermore, the rotating roller module can be adjusted by moving the support arm to align with the protruding edges of the lithium battery electrode sheets. Additionally, one end of the support arm is adjustable to a connecting rod, allowing for adjustment of the roller module's installation height according to actual needs. This makes the distance between the roller module and the protruding edges of the lithium battery electrode sheets adjustable, thereby improving the versatility and practicality of the anti-bulging device. During operation, this invention can contact and flatten the protruding edges of the lithium battery electrode sheets using the gravity of the rotating roller module, effectively preventing bulging on both sides during the lithium battery electrode sheet coating process. This improves the quality and efficiency of lithium battery electrode sheet coating, and enhances the quality of the coated lithium battery electrode sheets as raw materials when wound up.

[0008] The adjustable connection between one end of the support arm and the connecting rod means that the anti-bulging device also includes fasteners; the support arm has an adjustment hole one, and the connecting rod has an adjustment hole two. After the position of the connecting rod and the support arm is adjusted, the adjustment hole two and the adjustment hole one are connected by fasteners to realize the adjustable connection between the support arm and the connecting rod.

[0009] The rotating roller module is rotatably connected to the connecting rod, allowing the rotation angle of the rotating roller module to be adjusted.

[0010] The roller module includes a roller assembly, a frustum, and an adjustment assembly; the frustum is located at the bottom of the connecting rod; the adjustment assembly is connected to the roller assembly and is rotatably connected to the frustum.

[0011] The roller module also includes a connecting block; the adjusting component includes an adjusting block and an adjusting bolt; the adjusting block is rotatably connected to the frustum and connected to the roller assembly; the connecting block is connected to a connecting rod, and the adjusting bolt passes through the connecting block and abuts against the adjusting block; during operation, rotating the adjusting bolt pushes the adjusting block, causing the adjusting block to rotate along the frustum, thereby making the rotation angle of the roller assembly connected to the adjusting block adjustable.

[0012] Two adjusting bolts are provided, each passing through the connecting block and abutting against it. During operation, rotating one adjusting bolt pushes the adjusting block, causing it to rotate clockwise around the frustum, thus adjusting the clockwise rotation angle of the roller assembly connected to the adjusting block. Alternatively, rotating the other adjusting bolt pushes the adjusting block, causing it to rotate counterclockwise around the frustum, thus adjusting the counterclockwise rotation angle of the roller assembly connected to the adjusting block.

[0013] The roller assembly includes a roller and a roller frame; the roller frame is connected to an adjustment assembly, and the roller is mounted on the roller frame.

[0014] The frame is equipped with reinforcing ribs. This design improves the structural strength of the anti-bulging edge device.

[0015] The frame is equipped with casters with brakes at the bottom. This design facilitates the movement of the anti-bulging edge device.

[0016] The rotating roller module contacts the protruding edge of the lithium battery electrode, which is located between the take-up roller and the conveyor roller of the lithium battery electrode coating machine.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects: the anti-drumping device of the present invention for lithium battery electrode coating machine is highly versatile and practical. The anti-drumping device can effectively prevent the phenomenon of drumping on both sides during the coating process of lithium battery electrode, thereby improving the quality and efficiency of lithium battery electrode coating and improving the quality of lithium battery electrode after coating and winding as raw material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the anti-bulging edge device of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the support arm in the anti-bulging edge device of this utility model;

[0020] Figure 3 This is a schematic diagram of the connecting rod and rotating roller module in the anti-bulging edge device of this utility model;

[0021] Figure 4 This is a schematic diagram showing the positions of the anti-bulging edge device of this utility model and the winding roller and conveyor roller of the lithium battery electrode coating machine.

[0022] Among them, 1 is the frame, 1.1 is the support rod, 2 is the lithium battery electrode, 3 is the support arm, 3.1 is the first adjustment hole, 4 is the connecting rod, 4.1 is the second adjustment hole, 5 is the fastener, 6 is the frustum, 7 is the connecting block, 8 is the adjustment block, 9 is the adjustment bolt, 10 is the rotating roller, 11 is the rotating roller frame, 12 is the reinforcing rib, 13 is the caster, 14 is the take-up roller, and 15 is the conveyor roller. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example

[0025] like Figures 1 to 4As shown, the anti-bulging device for a lithium battery electrode coating machine of this invention includes a frame 1 and two rotating roller mechanisms for contacting the protruding edge portion of the lithium battery electrode 2. Each rotating roller mechanism is rotatably mounted on a support rod 1.1 of the frame 1. Each rotating roller mechanism includes a support arm 3, a connecting rod 4, and a rotating roller module. The connecting rod 4 is connected to the rotating roller module. One end of the support arm 3 is adjustablely connected to the connecting rod 4, and the other end is rotatably and movablely connected to the frame 1, so that the distance between the rotating roller module and the protruding edge portion of the lithium battery electrode 2 is adjustable. The rotating roller module of this invention contacts the protruding edge portion of the lithium battery electrode 2, which is located between the take-up roller and the conveyor roller of the lithium battery electrode coating machine.

[0026] Specifically, the adjustable connection between one end of the support arm 3 and the connecting rod 4 means that the anti-bulging device also includes a fastener 5, the support arm 3 has an adjustment hole 3.1, and the connecting rod 4 has an adjustment hole 4.1. After the position of the connecting rod 4 and the support arm 3 is adjusted, the adjustment hole 4.1 and the adjustment hole 3.1 are connected by the fastener 5 to realize the adjustable connection between the support arm 3 and the connecting rod 4.

[0027] Furthermore, the rotating roller module of this invention is rotatably connected to the connecting rod 4, enabling adjustable rotation angle of the rotating roller module. Specifically, the rotating roller module includes a rotating roller assembly, a frustum 6, a connecting block 7, and an adjusting assembly. The adjusting assembly includes an adjusting block 8 and two adjusting bolts 9. The frustum 6 is located at the bottom of the connecting rod 4, and the adjusting block 8 is rotatably connected to the frustum 6 and connected to the rotating roller assembly. The connecting block 7 is connected to the connecting rod 4, and the two adjusting bolts 9 pass through the connecting block 7 and abut against the adjusting block 8. During operation, rotating one adjusting bolt 9 pushes the adjusting block 8, causing the adjusting block 8 to rotate clockwise along the frustum 6, thus adjusting the clockwise rotation angle of the rotating roller assembly connected to the adjusting block 8; or, rotating the other adjusting bolt 9 pushes the adjusting block 8, causing the adjusting block 8 to rotate counterclockwise along the frustum 6, thus adjusting the counterclockwise rotation angle of the rotating roller assembly connected to the adjusting block 8. The rotating roller assembly includes a rotating roller 10 and a rotating roller frame 11. The rotating roller frame 11 is connected to the adjusting block 8 of the adjusting assembly, and the rotating roller 10 is mounted on the rotating roller frame 11.

[0028] To improve the structural strength of the anti-bulging device, the frame 1 is equipped with reinforcing ribs 12, and the bottom of the frame 1 is equipped with casters 13 with brake components. This design facilitates the movement of the anti-bulging device. The rotating roller module of this invention contacts the protruding edge of the lithium battery electrode 2, which is located between the take-up roller 14 and the conveyor roller 15 of the lithium battery electrode coating machine. In existing lithium battery electrode coating machines, the take-up roller 14 is the very end of the entire machine. During operation, the anti-bulging device can be moved to the very end of the machine to flatten the protruding edge of the lithium battery electrode 2 between the rotating roller module of the anti-bulging device and the take-up roller 14 and the conveyor roller 15.

[0029] The rotating roller module of this invention can be rotated via the support arm 3, allowing it to contact and flatten the protruding edges of lithium battery electrode sheets 2 at different heights. Furthermore, the rotating roller module can be adjusted via the support arm 3 to align with the protruding edges of the lithium battery electrode sheets 2. Additionally, one end of the support arm 3 is adjustablely connected to the connecting rod 4, allowing for adjustment of the roller module's installation height according to actual needs. This makes the distance between the roller module and the protruding edges of the lithium battery electrode sheets 2 adjustable, thereby improving the versatility and practicality of the anti-bulging device. During operation, this invention can flatten the protruding edges of the lithium battery electrode sheets 2 using the gravity of the rotating roller module, effectively preventing bulging on both sides during the coating process of the lithium battery electrode sheets 2. This improves the quality and efficiency of the coating process and enhances the quality of the coated lithium battery electrode sheets 2 when wound up as raw material.

[0030] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A beading prevention device for a lithium battery pole piece coating machine, characterized in that: The anti-curling device comprises a frame and at least one rotating roller mechanism for contacting the edge of the protruding part of the lithium battery pole piece; each rotating roller mechanism is rotatably arranged on the frame; each rotating roller mechanism comprises a supporting arm, a connecting rod and a rotating roller module; the connecting rod is connected with the rotating roller module; one end of the supporting arm is adjustably connected with the connecting rod, and the other end is rotatably and movably connected with the frame, so that the distance between the rotating roller module and the edge of the protruding part of the lithium battery pole piece is adjustable.

2. The anti-curl device for a lithium battery pole piece coating machine according to claim 1, characterized in that: One end of the supporting arm is adjustably connected with the connecting rod, that is, the anti-curling device further comprises a fastener; the supporting arm is provided with an adjusting hole one, and the connecting rod is provided with an adjusting hole two; after the adjusting positions of the connecting rod and the supporting arm are adjusted, the fastener is used to connect the adjusting hole two and the adjusting hole one, so that the supporting arm is adjustably connected with the connecting rod.

3. The anti-curl device for a lithium battery pole piece coating machine according to claim 1, characterized in that: The rotating roller module is rotatably connected with the connecting rod, so that the rotating angle of the rotating roller module is adjustable.

4. The anti-curl device for a lithium battery pole piece coating machine according to claim 3, characterized in that: The rotating roller module comprises a rotating roller assembly, a circular table and an adjusting assembly; the circular table is arranged at the bottom of the connecting rod; the adjusting assembly is connected with the rotating roller assembly and rotatably connected with the circular table.

5. The anti-curl device for a lithium battery pole piece coating machine according to claim 4, characterized in that: The rotating roller module further comprises a connecting block; the adjusting assembly comprises an adjusting block and an adjusting bolt; the adjusting block is rotatably connected with the circular table and connected with the rotating roller assembly; the connecting block is connected with the connecting rod, and the adjusting bolt is in abutment with the adjusting block through the connecting block; during work, the adjusting bolt is rotated to push the adjusting block, so that the adjusting block rotates along the circular table, and the rotating angle of the rotating roller assembly connected with the adjusting block is adjustable.

6. The anti-curl device for a lithium battery pole piece coating machine according to claim 5, characterized in that: The adjusting bolt is provided with two adjusting bolts, and the two adjusting bolts are in abutment with the adjusting block through the connecting block; during work, one adjusting bolt is rotated to push the adjusting block, so that the adjusting block rotates clockwise along the circular table, and the clockwise rotating angle of the rotating roller assembly connected with the adjusting block is adjustable; or, the other adjusting bolt is rotated to push the adjusting block, so that the adjusting block rotates counterclockwise along the circular table, and the counterclockwise rotating angle of the rotating roller assembly connected with the adjusting block is adjustable.

7. The anti-curl device for a lithium battery pole piece coating machine according to claim 4, characterized in that: The rotating roller assembly comprises a rotating roller and a rotating roller frame; the rotating roller frame is connected with the adjusting assembly, and the rotating roller is installed on the rotating roller frame.

8. The anti-curl device for a lithium battery pole piece coating machine according to claim 1, characterized in that: The frame is provided with a reinforcing rib.

9. The anti-curl device for a lithium battery pole piece coating machine according to claim 1, characterized in that: The bottom of the frame is provided with a castor with a brake component.

10. The anti-curl device for a lithium battery pole piece coating machine according to claim 1, characterized in that: The rotating roller module contacts the edge of the protruding part of the lithium battery pole piece, and the edge of the protruding part of the lithium battery pole piece is located between the winding roller and the conveying roller of the lithium battery pole piece coating machine.

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