Lithium battery pole piece coating mechanism

Abstract

The utility model discloses a lithium battery pole piece coating mechanism, and relates to the technical field of pole piece processing, the lithium battery pole piece coating mechanism comprises a rack, a coating box, a tensioning assembly and a coating assembly, the coating box is arranged on the rack, and a coating roller rotationally connected with first fixing plates on the two sides of the rack is arranged in the coating box; a guide roller rotationally connected with second fixing plates on the two sides of the rack is arranged on the right side of the coating box, the tensioning assembly is arranged on the rack on the left side of the coating box, and the coating assembly is arranged on the right side of the coating roller. A battery pole piece is adjusted through a tensioning roller and a threaded rod of the tensioning assembly, so that the battery pole piece is in a tensioning state, the situation that the battery pole piece is in a loose state, and consequently conveying and coating operation on the battery pole piece is difficult is avoided, meanwhile, the position of a scraping plate is adjusted through a driving lead screw of the coating assembly, and the coating efficiency is improved. The coating thickness of the battery pole piece can be adjusted, and the scraping plate is arranged to be of an arc-shaped structure, so that the scraped coating can fall into the coating box inwards, and the coating is prevented from splashing everywhere.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pole piece processing, specifically relates to a lithium battery pole piece coating mechanism. BACKGROUND

[0002] Lithium battery pole piece coating is a key technology in the manufacturing process of lithium battery, and its main purpose is to uniformly coat the slurry with good stability, good viscosity and good fluidity on the positive and negative current collectors, and to dry the coated slurry, which has important influence on the capacity, consistency, cycle life and safety of lithium battery. The existing coating device is generally fixed thickness coating when coating the battery pole piece, so when the battery pole piece needs different thickness coating, it is generally difficult to achieve, and the coating scraper on the battery pole piece may splash the scraped coating to all directions when coating the coating on the battery pole piece, causing waste of coating and disorder of the coating device. SUMMARY

[0003] The utility model aims at providing a lithium battery pole piece coating mechanism to overcome the above-mentioned defects in the prior art.

[0004] A lithium battery pole piece coating mechanism, comprising a rack, a coating tank, a tensioning assembly and a coating assembly, the coating tank is arranged on the rack, a coating roller is arranged in the coating tank and rotatably connected with the two fixed plates one on both sides of the rack, a guide roller is rotatably connected with the two fixed plates two on the right side of the coating tank and both sides of the rack;

[0005] The tensioning assembly is arranged on the rack on the left side of the coating tank and is used for tensioning the pole piece;

[0006] The coating assembly is arranged on the right side of the coating roller and between the two fixed plates one and is used for adjusting the coating thickness of the coating on the pole piece.

[0007] Preferably, the tensioning assembly comprises a lifting block, a threaded rod and a tensioning roller, the two sides of the rack are symmetrically provided with fixed plates three, a lifting block is slidably connected in the sliding groove on each fixed plate three, a threaded rod is threadedly connected to each fixed plate three, the lower end of the threaded rod is rotatably connected with the lifting block, and the two ends of the tensioning roller are rotatably connected to the two lifting blocks.

[0008] Preferably, the coating assembly comprises a guide rod, a driving screw rod and a scraper, the two ends of the guide rod are connected between the two connecting blocks one on the inner side of one of the fixed plates one, the driving screw rod is rotatably connected to the two connecting blocks two on the inner side of the other fixed plate one, a jam screw for abutting the driving screw rod and the connecting block two is threadedly connected to one of the connecting blocks two, the scraper is of arc structure and one end of the scraper is screw-connected with the driving screw rod through a screw nut, and the other end of the scraper is slidably connected to the guide rod.

[0009] Preferably, the top of the threaded rod is provided with a hand wheel one.

[0010] Preferably, the end of the driving screw rod is provided with a hand wheel two.

[0011] The utility model discloses the beneficial effect reached is:

[0012] The utility model discloses the tensioning roller and threaded rod of tensioning assembly are adjusted to battery pole piece, make battery pole piece be in the tensioned state, avoid battery pole piece to be in the slack state, thereby hardly conveying and coating operation to battery pole piece are carried out, simultaneously, the position of the scraper is adjusted to the driving screw rod of coating assembly, and the coating thickness of battery pole piece can be adjusted, and the arc structure that the scraper sets up can make the coating that scrapes falls into the coating tank inwards, avoids the coating to splash everywhere. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the whole of the utility model.

[0014] Figure 2 It is the structure schematic diagram of coating roller, guide roller, tensioning roller and one side of coating assembly of the utility model.

[0015] Figure 3 It is Figure 2 It is the structure schematic diagram of the local enlarged view of A place.

[0016] Figure 4 It is the structure schematic diagram of the other side of coating roller, guide roller, tensioning roller and coating assembly of the utility model.

[0017] Figure 5 It is the structure schematic diagram of the scraper of the utility model.

[0018] In the drawing, 1, frame, 11, fixed plate one, 12, fixed plate two, 2, coating tank, 3, coating roller, 4, guide roller, 5, tensioning assembly, 51, fixed plate three, 52, sliding slot, 53, lifting block, 54, threaded rod, 541, hand wheel one, 55, tensioning roller, 6, coating assembly, 61, guide rod, 62, connecting block one, 63, driving screw rod, 631, hand wheel two, 64, connecting block two, 65, scraper, 66, top screw. DETAILED DESCRIPTION

[0019] Below, by the description of the embodiment, the specific embodiment of the utility model is further detailed to help the technical personnel in the art to have more complete, accurate and thorough understanding of the conception, technical scheme of the utility model.

[0020] For example, Figures 1-5The utility model provides a kind of lithium battery pole piece coating mechanism, including rack 1, coating tank 2, tensioning component 5 and coating component 6, the coating tank 2 is located on rack 1, coating tank 2 is equipped with the coating roller 3 being rotationally connected with the fixed plate one 11 of both sides of rack 1, the right side of coating tank 2 is equipped with the guide roller 4 being rotationally connected with the fixed plate two 12 of both sides of rack 1, the tensioning component 5 is located on the rack 1 left side of coating tank 2 and is used to tension pole piece, the coating component 6 is located at the right side of coating roller 3 and between two fixed plate one 11 and is used to adjust the coating thickness of coating on pole piece.

[0021] It needs to be noted that the tensioning component 5 includes lifting block 53, threaded rod 54 and tensioning roller 55, the two sides of the rack 1 are symmetrically provided with fixed plate three 51, each lifting block 53 is slidably connected in the sliding groove 52 on each fixed plate three 51, each fixed plate three 51 is threadedly connected with a threaded rod 54, the top of the threaded rod 54 is provided with a hand wheel 541, so as to facilitate the rotation of the threaded rod 54, the lower end of the threaded rod 54 is rotationally connected with the lifting block 53, and the two ends of the tensioning roller 55 are respectively rotationally connected to the two lifting blocks 53.

[0022] In addition, the coating component 6 includes guide rod 61, drive screw 63 and scraper 65, the two ends of the guide rod 61 are respectively connected between the two connecting blocks one 62 on the inner side of one of the fixed plate one 11, the drive screw 63 is rotationally connected to the two connecting blocks two 64 on the inner side of the other fixed plate one 11, the end of the drive screw 63 is provided with a hand wheel 631, so as to facilitate the rotation of the drive screw 63, the top tight screw 66 for abutting the drive screw 63 and the connecting block two 64 is threadedly connected to one of the connecting block two 64, the scraper 65 is of arc structure and is screw-connected with the drive screw 63 through a screw nut at one end, the other end of the scraper 65 is slidably connected to the guide rod 61, and the arc-shaped scraper 65 can avoid the splashing of the scraped coating everywhere.

[0023] Specific implementation and principles:

[0024] S1, pass the battery pole piece through the tensioning roller 55, the coating roller 3 and the guide roller 4, adjust the position of the lifting block 53 in the sliding groove 52 on the fixed plate by rotating the hand wheel 541 on the threaded rod 54, so as to tension the battery pole piece;

[0025] S2, unscrew the top tight screw 66 on the connecting block two 64, then rotate the drive screw 63 through the hand wheel 631, so as to move the scraper 65 along the guide rod 61, so as to adjust the thickness of the coating on the battery pole piece, then tighten the top tight screw 66 to fix the drive screw 63 and the connecting block two 64;

[0026] S3, the driving device drives the battery pole piece to move, and the battery pole piece is immersed in the coating tank 2 during the movement to perform coating operation on the surface thereof;

[0027] S4, when the coated battery pole piece passes through the scraper 65, the excess coating is scraped to the coating tank 2 by the scraper 65.

[0028] In summary, the tensioning roller 55 and the threaded rod 54 of the tensioning assembly 5 are used to adjust the battery pole piece, so that the battery pole piece is in a tensioning state, avoiding the battery pole piece in a slack state, so that the battery pole piece is difficult to be transported and coated, and the position of the scraper 65 is adjusted by the driving lead screw 63 of the coating assembly 6, so that the coating thickness of the battery pole piece can be adjusted, and the scraper 65 is arranged in an arc-shaped structure, so that the scraped coating falls into the coating tank 2 inward, avoiding the coating splashing everywhere.

[0029] The above-mentioned embodiments of the present application do not constitute a limitation on the protection scope of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A lithium battery pole piece coating mechanism, characterized in that: Including frame (1), paint tank (2), tensioning assembly (5) and coating assembly (6), the paint tank (2) is arranged on the frame (1), the paint tank (2) is provided with paint roller (3) rotatably connected with the fixed plate one (11) on both sides of the frame (1), the right side of the paint tank (2) is provided with guide roller (4) rotatably connected with the fixed plate two (12) on both sides of the frame (1); The tensioning assembly (5) is arranged on the frame (1) on the left side of the paint tank (2) and is used for tensioning the pole piece; The coating assembly (6) is arranged on the right side of the paint roller (3) and is located between the two fixed plate one (11) and is used for adjusting the coating thickness of the coating on the pole piece.

2. The lithium battery pole piece coating mechanism according to claim 1, characterized in that: The tensioning assembly (5) includes lifting block (53), threaded rod (54) and tensioning roller (55), the frame (1) is provided with fixed plate three (51) on both sides, the lifting block (53) is slidably connected in the sliding groove (52) on each fixed plate three (51), the threaded rod (54) is threadedly connected on each fixed plate three (51), the lower end of the threaded rod (54) is rotatably connected with the lifting block (53), and the two ends of the tensioning roller (55) are rotatably connected to the two lifting blocks (53).

3. The lithium battery pole piece coating mechanism according to claim 1, characterized in that: The coating assembly (6) includes guide rod (61), drive screw (63) and scraper (65), the two ends of the guide rod (61) are connected between the two connecting blocks one (62) on the inner side of one of the fixed plate one (11), the drive screw (63) is rotatably connected to the two connecting blocks two (64) on the inner side of the other fixed plate one (11), one of the connecting blocks two (64) is threadedly connected with the tight screw (66) for abutting the drive screw (63) and the connecting block two (64), the scraper (65) is arc-shaped structure, one end of the scraper (65) is screw-connected with the drive screw (63) through the screw nut, and the other end of the scraper (65) is slidably connected to the guide rod (61).

4. The lithium battery pole piece coating mechanism according to claim 2, characterized in that: The top of the threaded rod (54) is provided with hand wheel one (541).

5. The lithium battery pole piece coating mechanism according to claim 3, characterized in that: The end of the drive screw (63) is provided with hand wheel two (631).

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