CN212136624U

CN212136624U - A compression roller device for lithium battery tab

Info

Publication number: CN212136624U
Application number: CN202020332290.0U
Authority: CN
Inventors: 钱帮芬; 郑斌; 赵利平
Original assignee: Haiyi New Energy Yangzhou Co ltd
Current assignee: Haiyi New Energy Yangzhou Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-12-11
Anticipated expiration: 2030-03-17

Abstract

The utility model provides a compression roller device for lithium cell utmost point ear, including support frame and roller, roller periphery equipartition sets up a plurality of fillets arch, the support frame includes crossbeam and stand, the stand is equipped with two, and fixed connection is in respectively the crossbeam both ends, and equal perpendicular to crossbeam, fixed roller bearing and the lower roller bearing of being equipped with between the stand, it is the level setting with the lower roller bearing to go up the roller bearing, the roller includes roller and lower roller bearing, and the upper roller bearing surface is equipped with the bearing, and the upper roller bearing passes through the bearing and rotates to connect the upper roller, and the lower roller bearing surface is equipped with the bearing, and the lower roller bearing passes through the bearing and rotates to connect lower roller, the protruding both sides that correspond the setting in utmost point ear same position of upper roller. The utility model discloses equipment replacement is convenient, and the cost is lower, requires lowly to the operating personnel level, is fit for using on a large scale in the coiling type lithium cell production process.

Description

A compression roller device for lithium battery tab

Technical Field

The utility model belongs to lithium cell production facility field, in particular to a compression roller device for lithium cell utmost point ear.

Background

In the production process of the square lithium ion battery with the aluminum shell, a winding core needs to be obtained through a winding process, and the production method is efficient and low in cost and is widely applied. The processing of the tab is to cut out one side of the pole piece in a laser cutting mode and wind the tab into a winding core along with the pole piece. Due to the characteristics of the geometry and the material of the tab, uneven shearing force is generated on the surface of the tab in the winding link process, and the tab is easily wrinkled, bent and the like under the action of small disturbance, so that the charging and discharging and even the safety performance of a winding core are influenced. Therefore, the improvement of the bending rigidity of the tab has important significance on the production efficiency and the yield of the coiled lithium battery. At present, most manufacturers add a smoothing device at the position of an upper roller column of a winding machine in the production process, the installation cost is high, the quantity is large, and the problem of bending of the tabs cannot be fundamentally solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a compression roller device for lithium battery tab, including support frame and roller, roller periphery equipartition sets up a plurality of fillets arch, the support frame includes crossbeam and stand, the stand is equipped with two, and fixed connection is in respectively the crossbeam both ends, and equal perpendicular to crossbeam, fixed roller bearing and the lower roller bearing of being equipped with between the stand, it is the level setting to go up roller bearing and lower roller bearing, the roller includes roller and lower roller bearing, and the upper roller bearing surface is equipped with the bearing, and upper roller bearing passes through the bearing and rotates to connect and connect the upper roller, and lower roller bearing surface is equipped with the bearing, and lower roller bearing passes through the bearing and rotates and connect lower roller, the protruding correspondence of upper roller and lower roller sets up the upper and lower both sides.

Further: and the two ends of the upper rolling shaft and the lower rolling shaft are horizontally and fixedly connected between the two upright posts through bolts.

Further: the middle parts of the two upright posts are respectively provided with a height adjusting groove, and the two ends of the upper rolling shaft and the lower rolling shaft are horizontally fixed in the height adjusting grooves through bolts.

Further: the protrusions are hemispherical with a diameter of 2 mm.

Further: the linear distance between the adjacent protrusions was 3 mm.

Further: the distance between the bulges of the upper roller and the bulges of the lower roller is 1 mm.

Has the advantages that: the utility model discloses a roll-in mode makes utmost point ear surface obtain the strengthening rib of certain density, improves the internal stress of utmost point ear, improves the whole bending rigidity of utmost point ear, under the prerequisite of guaranteeing utmost point ear overcurrent capacity and welding property, effectively solves the problem that utmost point ear crosses the roller and buckles in the coiling link; the equipment replacement is convenient, the cost is lower, the requirement on the level of an operator is low, and the method is suitable for large-scale application in the production process of the winding type lithium battery.

Drawings

FIG. 1 is a schematic structural view of the present invention,

FIG. 2 is a schematic view of the relative positions of the height adjusting slot and the bolt of the present invention,

description of the drawings: 1-bulge, 2-beam, 3-column, 4-upper roller, 5-lower roller, 6-upper roller, 7-lower roller, 8-bolt and 9-height adjusting groove.

Detailed Description

The present invention will be further clarified by the following description in conjunction with the accompanying drawings, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the invention by those skilled in the art after reading the present invention are within the scope defined by the appended claims.

The utility model discloses a compression roller device for lithium cell utmost point ear, as shown in fig. 1, including support frame and roller, roller periphery equipartition sets up the protruding 1 of a plurality of fillets, the support frame includes crossbeam 2 and stand 3, stand 3 is equipped with two, fixed connection is at 2 both ends of crossbeam respectively, and equal perpendicular to crossbeam 2, fixed roller bearing 4 and the lower roller bearing 5 of being equipped with between the stand 3, it is the level setting to go up roller bearing 4 and lower roller bearing 5, the roller includes roller 6 and lower roller bearing 7, it is equipped with the bearing to go up roller bearing 4 surface, it connects upper roller 6 to go up roller bearing 4 through the bearing rotation, lower roller bearing 5 surface is equipped with the bearing, lower roller bearing 5 rotates through the bearing and connects lower roller bearing 7, upper roller bearing 6 and lower roller bearing 7's protruding 1 correspondence.

The two ends of the upper roller 4 and the lower roller 5 are horizontally and fixedly connected between the two upright posts 3 through bolts 8. The middle parts of the two upright posts 3 are respectively provided with a height adjusting groove 9, so that the upper roller 4 and the lower roller 5 can be horizontally adjusted up and down in the height adjusting grooves, as shown in fig. 2, two ends of the upper roller 4 and the lower roller 5 are horizontally fixed in the height adjusting grooves 9 through bolts 8. The protrusions 1 are hemispherical with a diameter of 2 mm. The linear distance between adjacent protrusions 1 was 3 mm. The distance between the bulge 1 of the upper roller 6 and the bulge 1 of the lower roller 7 is 1 mm.

The utility model discloses a roll-in mode makes utmost point ear surface obtain the strengthening rib of certain density, improves the internal stress of utmost point ear, improves the whole bending rigidity of utmost point ear, under the prerequisite of guaranteeing utmost point ear overcurrent capacity and welding property, effectively solves the problem that utmost point ear crosses the roller and buckles in the coiling link; the equipment replacement is convenient, the cost is lower, the requirement on the level of an operator is low, and the method is suitable for large-scale application in the production process of the winding type lithium battery.

Claims

1. The utility model provides a compression roller device for lithium battery tab, includes support frame and roller, roller periphery equipartition sets up a plurality of fillet archs (1), its characterized in that: the support frame includes crossbeam (2) and stand (3), stand (3) are equipped with two, fixed connection respectively in crossbeam (2) both ends, and equal perpendicular to crossbeam (2), fixed roller bearing (4) and lower roller bearing (5) of being equipped with between stand (3), it is the level setting to go up roller bearing (4) and lower roller bearing (5), the roller includes roller (6) and lower roller (7), and it is equipped with the bearing to go up roller bearing (4) surface, and last roller bearing (4) rotate through the bearing and connect roller bearing (6), and lower roller bearing (5) surface is equipped with the bearing, and lower roller bearing (5) rotate through the bearing and connect roller bearing (7) down, arch (1) of going up roller bearing (6) and lower roller bearing (7) correspond the upper and lower both sides that set up in utmost point ear same position.

2. The roll apparatus for a lithium battery tab according to claim 1, wherein: the two ends of the upper roller (4) and the lower roller (5) are horizontally and fixedly connected between the two upright posts (3) through bolts (8).

3. The roll apparatus for a lithium battery tab according to claim 2, wherein: the middle parts of the two upright posts (3) are respectively provided with a height adjusting groove (9), and the two ends of the upper roller (4) and the lower roller (5) are horizontally fixed in the height adjusting grooves (9) through bolts (8).

4. The roll apparatus for a lithium battery tab according to claim 1, wherein: the bulges (1) are hemispherical with the diameter of 2 mm.

5. The roll apparatus for a lithium battery tab according to claim 1, wherein: the straight-line distance between the adjacent bulges (1) is 3 mm.

6. The roll apparatus for a lithium battery tab according to claim 1, wherein: the distance between the bulges (1) of the upper roller (6) and the bulges (1) of the lower roller (7) is 1 mm.