Rolling device for lithium battery tabs

Abstract

A rolling device for lithium battery tabs comprises a support, tab rolling devices arranged on the support and a telescopic device used for adjusting the distance between the tab rolling devices, and a hoisting plate used for hoisting the telescopic device is arranged in the support. The pole lug rolling device comprises a supporting roller rotationally arranged in the support and a roller frame arranged at the telescopic end of the telescopic device, an upper pressing roller is rotationally arranged in the roller frame, and a gap for a pole lug to penetrate through is reserved between the supporting roller and the upper pressing roller. According to the utility model, the bracket is arranged on the roller press in front of the pole piece rolling area, then the pole lug area of the pole piece is rolled and extended by the supporting roller and the upper pressing roller, and the rolled pole lug is rolled and extended on the coating part of the foil through the roller press; and the problem of wrinkling of the pole piece caused by uneven stress of the foil coating part and the tab area is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of the ear roll pressure, especially related to a kind of roll pressure device of lithium battery pole ear. BACKGROUND

[0002] The pole piece is formed by coating paint on the two sides of foil, then drying, and then roll pressing after drying. In the pole piece roll pressing process, the paint part of the pole piece is thicker than the uncoated part (pole ear) of the pole piece, so that the stress of the pole ear position and the paint part of the pole piece is uneven, resulting in different extension deformation of the paint part of the pole piece and the pole ear, wrinkles occur, and the quality of the pole piece is affected. SUMMARY

[0003] The utility model aims at providing a kind of roll pressure device of lithium battery pole ear, to solve the technical problem proposed in the above background technique.

[0004] To achieve the above object, the specific technical scheme of the utility model of a kind of roll pressure device of lithium battery pole ear is as follows:

[0005] A kind of roll pressure device of lithium battery pole ear, including support, be located on the support pole ear roll pressure device and be used for adjusting the extension device of pole ear roll pressure device spacing, in support inside be provided for the extension device of hoisting extension device hoisting plate. Pole ear roll pressure device includes the support roller rotationally arranged in the support, roll stand is arranged on the extension end of extension device, and the upper compression roller is rotationally arranged in the roll stand, and the gap for the pole ear to pass through is left between the support roller and the upper compression roller.

[0006] Further, the lower compression roller is arranged on the support roller, and the lower compression roller is arranged corresponding to the upper compression roller.

[0007] Further, the traction frame is slidably arranged on the hoisting plate, the traction frame is detachably connected with the extension device through the connecting piece at the bottom end of the traction frame, and the traction frame is limited with the hoisting plate by bolt. The connecting seat is slidably arranged on the support roller corresponding to the upper compression roller, and the lower compression roller is rotationally arranged with the connecting seat.

[0008] Further, the connecting plate is arranged at the outer side end of the connecting seat, the sliding block is arranged at the outer side end of the roll stand, and the connecting plate and the sliding block are slidably arranged.

[0009] The roll pressure device of the utility model of a kind of lithium battery pole ear has the following advantages:

[0010] 1. The utility model sets up support in front of the pole piece roll pressing area of roll press, and then the pole ear area of pole piece is roll pressed and extended by support roller and upper compression roller, and the problem that the pole piece is wrinkled due to uneven stress of foil paint part and pole ear area is effectively prevented after foil paint part is roll pressed and extended by roll press.

[0011] 2, the utility model discloses the connecting seat and support roll are set to sliding connection, and the lower pressure roller is rotationally arranged on the connecting seat, and the lower pressure roller and the upper pressure roller are correspondingly arranged, can prevent the upper pressure roller to the lug roll pressure, and the lug and the foil coating part junction of ear are bent, make the lug area better be pressed by the upper pressure roller and the lower pressure roller. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structure schematic diagram of the lithium battery lug's roll pressure device of the utility model;

[0013] Fig. 2 It is the lower pressure roller, connecting seat, connecting plate and sliding slot schematic diagram of the utility model;

[0014] Fig. 3 It is the roll frame, sliding block traction frame schematic diagram of the utility model.

[0015] Mark explanation in drawing:

[0016] 1, support;2, lug roll pressure device;21, support roll;22, upper pressure roller;23, roll frame;3, hoisting plate;4, air cylinder;5, convex block;6, clamping plate;7, bolt;8, lower pressure roller;9, connecting seat;10, connecting plate;11, sliding slot;12, sliding block. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the utility model, the utility model a kind of lithium battery lug's roll pressure device is further described in detail below with the drawings.

[0018] As Figs. 1 to 3 Indicated, the utility model a kind of lithium battery lug's roll pressure device, including the support 1 of U type, the lug roll pressure device 2 for being set in the support 1 of U type and the expansion device for adjusting the distance of lug roll pressure device 2 to the lug area of pole piece is rolled at the same time, still be equipped with the hoisting plate 3 for hoisting expansion device in the support 1 at its top end.It needs to be explained, the roll pressure device of lithium battery lug is set in the front of the pole piece roll pressure area of roll press, so that after lug roll pressure device 2 is rolled to the lug area on the pole piece, again through the pole piece roll pressure area of roll press to the foil with coating part is rolled, so that lug is fully extended before being rolled by roll press, effectively prevent the problem that pole piece is rolled by roll press when lug area is wrinkled due to uneven stress of lug and foil coating part when being rolled.

[0019] Specifically, the tab roller pressing device 2 is provided with two, and the two tab roller pressing devices 2 are arranged corresponding to the tab position of the pole piece. The tab roller pressing device 2 includes a support roller 21 arranged in the bracket 1 through a rotating shaft, a roller frame 23 arranged at the telescopic end of the telescopic device, and an upper pressing roller 22 arranged in the roller frame 23. The upper pressing roller 22 is located directly above the support roller 21, and a gap for the tab to pass through is left between the support roller 21 and the upper pressing roller 22. The inner side end of the upper pressing roller 22 is arranged corresponding to the inner side end of the tab on the pole piece. In this way, the upper pressing roller 22 can fully roll press the tab area. When the pole piece is roll pressed, the pole piece first passes through the tab roller pressing device of the lithium battery, and then passes through the roll press to roll press the pole piece. The roll press works, and the pole piece advances under the action of the roll press. At the same time, the tab area on the pole piece also advances and is roll pressed under the action of the support roller 21 and the upper pressing roller 22. Not only can the coating part of the pole piece be fully roll pressed, but also the tab area of the pole piece can be fully roll pressed.

[0020] It should be noted that the thickness of the pole piece is different, and when different thickness pole pieces are replaced, the height of the upper pressing roller 22 on the roller frame 23 can be adjusted by the telescopic device to adjust the distance between the upper pressing roller 22 and the support roller 21. In this embodiment, the telescopic device is a pneumatic cylinder 4, which is connected with an external air pump. The pneumatic cylinder 4 can also be replaced with a hydraulic cylinder. The use of the pneumatic cylinder 4 is not limited here, and it can meet the needs.

[0021] In order to facilitate the upper pressing roller 22 to roll press the tab area of different widths, a traction frame is slidably arranged on the hoisting plate 3, and the traction frame is limited with the hoisting plate 3 through bolts 7. The bottom end of the traction frame is detachably connected with the telescopic device through a connecting piece. By moving the traction frame, the telescopic device connected therewith and the upper pressing roller 22 connected with the telescopic device through the roller frame 23 can be moved, so that the upper pressing roller 22 can adapt to the roll pressing work of tab areas of different widths. Specifically, the traction frame includes a convex block 5, the bottom end of the convex block 5 is detachably connected with the telescopic device through a connecting piece, and the connecting piece in this embodiment is a bolt, which can also be connected with a screw. At the same time, two clamping plates 6 are arranged at the top end of the convex block 5, the hoisting plate 3 is slidably arranged between the two clamping plates 6, and the bolts 7 are penetrated through the two clamping plates 6. The bolt 7 is threadedly connected with one of the clamping plates 6, and the two clamping plates 6 are limited with the hoisting plate 3 through the bolt 7. By rotating the nut of the bolt 7, the two clamping plates 6 are moved close to each other, the hoisting plate 3 is clamped between the two clamping plates 6, and the clamping plate 6 can be fixed relative to the hoisting plate 3. Similarly, by reversely rotating the nut of the bolt 7, the clamping of the hoisting plate 3 by the two clamping plates 6 is released, and the traction frame can be slid on the hoisting plate 3 again.

[0022] As preferred, the lower pressing roller 8 is arranged on the supporting roller 21, and the connecting seat 9 is arranged on the supporting roller 21 corresponding to the sliding of the upper pressing roller 22, and the lower pressing roller 8 is rotatably arranged on the connecting seat 9. The lower pressing roller 8 is arranged corresponding to the upper pressing roller 22, that is, the inner side end of the lower pressing roller 8 is flush with the inner side end of the upper pressing roller 22. When the lateral position of the upper pressing roller 22 is adjusted by the traction frame, the corresponding lower pressing roller 8 is adjusted in the lateral position on the supporting roller 21 through the connecting seat 9, so that the inner side end of the upper pressing roller 22 is flush with the inner side end of the lower pressing roller 8, so as to fully extend the tab area. When the tab area passes through the tab roller pressing device 2, the bottom surface of the tab is supported on the lower pressing roller 8, and at this time, the upper pressing roller 22 can roll and extend the tab area. In this way, the tab can be prevented from being supported on the supporting roller 21, and then the upper pressing roller 22 is pressed on the tab, so that the bending of the coating part of the tab and the tab area is caused, and the overall pressing of the tab is affected.

[0023] As another preferred, the connecting seat 9 is provided with a connecting plate 10 extending upward at the outer side end, and the roller frame 23 is provided with a sliding block 12 at the outer side end, the connecting plate 10 and the sliding block 12 are slidably arranged, and a sliding groove 11 is formed on the connecting plate 10 corresponding to the position of the sliding block 12. The connecting seat 9 and the roller frame 23 are connected together through the connecting plate 10 and the sliding block 12, and then when the traction frame is moved, the traction frame drives the upper pressing roller 22 to move through the telescopic device and the roller frame 23, and at the same time, the sliding block 12 on the roller frame 23 drives the lower pressing roller 8 on the connecting seat 9 to move on the supporting roller 21 through the connecting plate 10, so that the upper pressing roller 22 and the lower pressing roller 8 are synchronously moved, and the process of repeatedly adjusting the positions of the upper pressing roller 22 and the lower pressing roller 8 is saved, which saves time and labor and is simple to operate.

[0024] Method for use: loosen the bolt 7 on the traction frame, then flush the inner side end surface of the two upper pressing rollers 22 with the inner side end of the tab according to the width of the tab of the tab, then tighten the bolt 7 on the traction frame, so that the traction frame is limited in position on the hoisting plate 3, then start the air pump, the air pump drives the cylinder 4 to work, the cylinder 4 drives the upper pressing roller 22 to adjust longitudinally through the roller frame 23 to meet the roller pressing of the tab, then start the roller press, and the roller press rolls and presses the part to be coated on the tab, and the tab area is rolled and pressed by the upper pressing roller 22 and the lower pressing roller 8.

[0025] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A kind of lithium battery tab roller press device, it is characterized by: Including support (1), be set on the tab roller press device (2) of support (1) and the telescopic device for adjusting the interval of tab roller press device (2), be equipped with in support (1) for the hoisting telescopic device hoisting plate (3); Tab roller press device (2) includes the support roller (21) rotationally arranged in support (1), roller bracket (23) is set on the telescopic end of telescopic device, and upper press roller (22) is rotationally arranged in roller bracket (23), and the gap that tab passes through is left between support roller (21) and upper press roller (22).

2. The lithium battery tab roller press device according to claim 1, wherein: The support roller (21) is provided with a lower press roller (8), and the lower press roller (8) is correspondingly arranged with the upper press roller (22).

3. The lithium battery tab roller press device according to claim 2, wherein: The hoisting plate (3) is slidably provided with a traction frame, the bottom end of the traction frame is detachably connected with the telescopic device through a connecting piece, and the traction frame is limited with the hoisting plate (3) through bolts (7). The support roller (21) is slidably provided with a connecting seat (9) corresponding to the upper press roller (22), and the lower press roller (8) is rotationally arranged with the connecting seat (9).

4. The lithium battery tab roller press device according to claim 3, wherein: The connecting seat (9) is provided with a connecting plate (10) at the outer side end, the roller bracket (23) is provided with a sliding block (12) at the outer side end, and the connecting plate (10) and the sliding block (12) are slidably arranged.

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