CN216757020U - Bottom coating pole piece coating device - Google Patents

Abstract

The utility model relates to a priming pole piece coating device, comprising a pole roll unwinding component (1), a pole piece passing roll component (2), a laser module moving component (3) and a coating component (4). The coated pole piece (5) is unwound from the pole roll unwinding assembly (1), the pole piece passing roller assembly (2) supports the primer pole piece (5), and the laser module moving assembly (3) is arranged on the pole roll Between the unwinding assembly (1) and the coating assembly (4). Compared with the prior art, the utility model can increase the coating thickness of the pole piece, increase the single capacity of the pole piece, reduce the risk of baking cracking of the pole piece, and reduce the risk of powder drop of the pole piece during the rolling process.

Description

A primer coating device

technical field

The utility model relates to the technical field of battery production, in particular to an undercoating pole piece coating device.

Background technique

As a key process in the production of battery pole pieces, foil coating is mainly used to complete the production of battery pole pieces through foil bottom coating, bottom coating baking, bottom coating secondary coating, and secondary coating baking. There is no treatment on the surface of the coated pole piece. If the thickness of the secondary coating is too thick, the adhesion of the coating will become weak, resulting in poor coating consistency; in addition, the pole piece is easy to crack during the coating and baking process; secondly, the coating After completion, the rolling process of the next process is easy to lose powder and stick to the roller, which affects the capacity and production efficiency of the pole piece monomer.

Utility model content

The purpose of the utility model is to provide a primer-coating pole piece coating device to increase the adhesiveness of the secondary coating.

The purpose of the present utility model can be achieved by the following technical solutions: a primer coating device for pole piece, comprising a pole roll unwinding assembly, a pole piece passing roller assembly, a laser module moving component and a coating component, a primer pole piece Unwinding from the pole roll unwinding component, the pole piece over-roll component supports the primer pole piece, and the laser module moving component is arranged between the pole roll unwinding component and the coating component.

Preferably, the laser module moving assembly is arranged above the primer-coated pole piece, and is used to score the surface of the primer-coated pole piece.

Preferably, the notches are arranged in parallel and at equal intervals, with a depth of 0.05 mm, a width of 1 mm and a gap of 5 mm.

Further preferably, the moving direction of the laser module in the laser module moving assembly is perpendicular to the moving direction of the primer pole piece.

Preferably, the primer coating device further includes a CCD feedback component.

Further preferably, the CCD feedback assembly includes a CCD light supplementary plate and a CCD lens.

Further preferably, the CCD light supplement plate is arranged below the primer-coated pole piece, and the CCD lens is arranged above the primer-coated pole piece.

Further preferably, the CCD feedback assembly is arranged between the pole roll unwinding assembly and the laser module moving assembly.

Preferably, the pole roll unwinding assembly adopts servo control.

Preferably, the primer-coated pole piece coating device further comprises an X-axis servo moving component, and the X-axis servo moving component adjusts the left and right positions of the pole roll unwinding component.

Preferably, the pole piece passing roller assembly includes a plurality of pole piece passing rolls arranged in parallel.

Preferably, the coating component is used for secondary coating of the pole piece, and the coating thickness can be up to 300um at most.

Compared with the prior art, the utility model has the following advantages:

1. The utility model can increase the coating thickness of the pole piece, increase the capacity of the single piece of the pole piece, reduce the risk of baking and cracking of the pole piece, reduce the risk of powder dropping of the pole piece during the rolling process, and improve the production efficiency of the next process;

2. The utility model uses the laser module moving assembly to carry out gap scoring on the bottom coating pole piece to increase the roughness of the bottom coating, thereby increasing the adhesion of the secondary coating, effectively improving the coating thickness of the pole piece, and then effectively. Improve the single capacity of the pole piece;

3. The utility model uses the laser module moving assembly to carry out gap scoring on the primer pole piece, which can ensure the stability of the secondary coating, thereby reducing the risk of pole piece baking and cracking and the risk of pole piece powder falling during the rolling process;

4. The utility model adopts the servo unwinding and the pole roll position adjustment mechanism to ensure the consistency of the whole unwinding speed and position;

5. The utility model adopts a CCD feedback component and a laser module linkage mechanism to ensure the uniformity of the bottom coating pole piece nicks;

6. The device of the utility model can increase the coating stability, the roller is not easy to stick during the rolling process, the cleaning times of the roller are reduced, and the rolling production efficiency can be effectively improved.

Description of drawings

Fig. 1 is the structural representation of the primer coating device of the utility model;

In the picture: 1-pole roll unwinding component, 2-pole piece over-roll component, 3-laser module moving component, 4-coating component, 5-priming pole piece, 6-CCD feedback component, 61-CCD compensation component Light plate, 62-CCD lens, 7-X-axis servo moving assembly, 8-scoring, 9-second coating area, 10-pole piece edge area.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. The following examples are implemented on the premise of the technical solutions of the present utility model, and provide detailed implementation manners and specific operation processes, but the protection scope of the present utility model is not limited to the following examples.

Example 1

A priming pole piece coating device, as shown in Figure 1, includes a pole roll unwinding assembly 1, a pole piece passing roll assembly 2, a laser module moving assembly 3, a coating assembly 4, a CCD feedback assembly 6 and an X axis Servo moving component 7, the bottom-coated pole piece 5 that has been coated and baked by the foil material is pulled out from the pole roll unwinding component 1, and supported by the pole piece passing roller component 2, passes through the CCD feedback component 6, the laser mold Set the moving assembly 3 and the coating assembly 4 for secondary coating.

Among them, the pole roll unwinding assembly 1 is arranged on the X-axis servo moving assembly 7, and the left and right positions of the pole roll unwinding assembly 1 are adjusted by the X-axis servo moving assembly 7. The pole roll unwinding assembly 1 adopts servo control to control the pole roll unwinding. speed. The CCD feedback component 6 includes a CCD supplementary light plate 61 and a CCD lens 62 , which can detect the position of the primer area in linkage, and feedback the X-axis servo moving component 7 to complete the adjustment of the left and right positions of the pole roll unwinding component 1 .

The laser module moving component 3 is used to score the surface of the primer pole piece 5, and the formed score 8 has a depth of 0.05mm, a width of 1mm, and a gap of 5mm. The sheet 5 is subjected to secondary coating, and a secondary coating area 9 is formed on the surface thereof, and the coating thickness of the secondary coating area 9 can be up to 300um (single side). In particular, the edge regions 10 on the left and right sides of the primer-coated pole piece 5 in this embodiment are not subjected to primer coating and secondary coating, which can improve the consistency of the thickness of the pole piece, thereby improving the cell capacity after battery assembly.

Example 2

A primer-coated pole piece coating device is also provided with a CCD feedback component 6 at the secondary coating area 9, and the rest of the structure is the same as that of Embodiment 1.

The above description of the embodiments is for the convenience of those skilled in the art to understand and use the present invention. It will be apparent to those skilled in the art that various modifications to these embodiments can be readily made, and the generic principles described herein can be applied to other embodiments without inventive step. Therefore, the present invention is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should all fall within the protection scope of the present invention.

Claims (10)

1. An undercoating pole piece coating device, characterized in that it comprises a pole roll unwinding assembly (1), a pole piece passing roll assembly (2), a laser module moving assembly (3) and a coating assembly (4) , the primer pole piece (5) is unwound from the pole roll unwinding assembly (1), the pole piece passing roller assembly (2) supports the primer pole piece (5), and the laser module moving component (3) is arranged in Between the pole roll unwinding assembly (1) and the coating assembly (4). 2 . The primer electrode piece coating device according to claim 1 , wherein the laser module moving assembly ( 3 ) is arranged above the primer electrode piece ( 5 ), and is used for coating the primer electrode piece ( 5 ). 3 . Sheet (5) for surface scoring. 3. The priming pole piece coating device according to claim 2, characterized in that the moving direction of the laser module in the laser module moving assembly (3) and the movement of the primer pole piece (5) Orientation is vertical. 4 . The primer-coated pole piece coating device according to claim 1 , wherein the primer-coated pole piece coating device further comprises a CCD feedback component ( 6 ). 5 . 5 . The primer coating device according to claim 4 , wherein the CCD feedback assembly ( 6 ) comprises a CCD light supplement plate ( 61 ) and a CCD lens ( 62 ). 6 . 6 . The priming pole piece coating device according to claim 5 , wherein the CCD light-filling plate ( 61 ) is arranged below the primer pole piece ( 5 ), and the CCD lens ( 62 ) is arranged on the primer piece 6 . Above the pole piece (5). 7. The priming pole piece coating device according to claim 4, wherein the CCD feedback component (6) is arranged between the pole roll unwinding component (1) and the laser module moving component (3). between. 8 . The priming pole piece coating device according to claim 1 , wherein the pole roll unwinding assembly ( 1 ) adopts servo control. 9 . 9 . The primer-coated pole piece coating device according to claim 1 , wherein the primer-coated pole piece coating device further comprises an X-axis servo moving component ( 7 ), and the X-axis servo moving component (7) Adjust the position of the pole roll unwinding assembly (1). 10 . The priming pole piece coating device according to claim 1 , wherein the pole piece passing roller assembly ( 2 ) comprises a plurality of pole piece passing rolls arranged in parallel. 11 .

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