Die cutting device for pole piece of lithium battery

Abstract

The utility model discloses a lithium battery pole piece die cutting device which comprises a base, an installation groove is formed in the upper surface of the base, a second motor is fixedly connected in the installation groove, an output shaft of the second motor is fixedly connected with a two-way screw rod, the outer surface of the two-way screw rod is symmetrically connected with threaded blocks in a threaded mode, and the threaded blocks are fixedly connected with the two-way screw rod in a threaded mode. Limiting plates are fixedly connected to the upper ends of the two threaded blocks, a mounting frame is fixedly connected to the upper end of the base, a vertical rod is fixedly connected to the upper end of the mounting frame, a third motor is fixedly connected to the upper end of the vertical rod, a rotating rod is fixedly connected to an output shaft of the third motor, and a rocker is rotatably connected to one side of the rotating rod; and the lower end of the rocker is rotationally connected with a rotating seat. And by arranging the mounting groove, the second motor, the two-way screw and the threaded block, the limiting plate is driven to move, the pole piece is limited, the pole piece conveyed to the die cutting table is prevented from deviating, and the die cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole piece die cutting, in particular to a pole piece die cutting device for lithium batteries. Background Technique

[0002] As a core component of new energy vehicles, the technical level and output of lithium-ion batteries will also increase accordingly. The pole piece is an important component in power batteries. After the production of lithium-ion battery pole pieces, it is necessary to cut the pole ears according to the structure and specifications of the batteries. Laser cutting and hardware die cutting are often used for pole ear cutting.

[0003] The existing die cutting devices generally consist of a feeding device and a die cutting device. However, the existing feeding devices are relatively simple and can only achieve the feeding effect of extrusion. It is not convenient to limit the pole pieces, and it is easy to shift during die cutting, resulting in a reduction in die cutting quality. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pole piece die cutting device for lithium batteries, which can drive the limiting plate to move through the installation groove, the second motor, the bidirectional screw rod and the threaded block, limit the pole piece, prevent the pole piece transported to the die cutting table from shifting, and improve the die cutting quality.

[0005] To achieve the above purpose, a pole piece die cutting device for lithium batteries is provided, including a base. The upper end of the base is symmetrically and fixedly connected with fixing plates. One side of one of the fixing plates is fixedly connected with a connecting frame. The upper end of the connecting frame is fixedly connected with a first motor. The output shaft of the first motor is fixedly connected with a driving gear. One side of one of the fixing plates is rotatably connected with a driven gear. The driving gear and the driven gear are both fixedly connected with conveying rollers on one side.

[0006] An installation groove is opened on the upper surface of the base. A second motor is fixedly connected inside the installation groove. The output shaft of the second motor is fixedly connected with a bidirectional screw rod. The outer surface of the bidirectional screw rod is symmetrically threadedly connected with threaded blocks. The upper ends of the two threaded blocks are both fixedly connected with limiting plates. The upper end of the base is fixedly connected with an installation frame. The upper end of the installation frame is fixedly connected with a vertical rod. The upper end of the vertical rod is fixedly connected with a third motor. The output shaft of the third motor is fixedly connected with a rotating rod. One side of the rotating rod is rotatably connected with a rocker. The lower end of the rocker is rotatably connected with a rotating seat. The lower end of the rotating seat is fixedly connected with a reciprocating rod. The lower end of the reciprocating rod is fixedly connected with a reciprocating plate. The lower end of the reciprocating plate is fixedly connected with a die cutting knife. The upper end of the base is fixedly connected with a die cutting table.

[0007] According to the described pole piece die cutting device for lithium batteries, the driving gear meshes with the driven gear.

[0008] According to the described pole piece die-cutting device for a lithium battery, one side of the bidirectional screw is fixedly connected with a bearing, and the bearing is fixed on the side wall of the installation groove.

[0009] According to the described pole piece die-cutting device for a lithium battery, the lower end of the threaded block is slidably connected with the bottom wall of the installation groove.

[0010] According to the described pole piece die-cutting device for a lithium battery, the limiting plate is slidably arranged on the outer surface of the conveying roller.

[0011] According to the described pole piece die-cutting device for a lithium battery, sliding grooves are provided on both inner walls of the mounting frame, a sliding rod is fixedly connected inside the sliding groove, a slider is slidably connected to the outer surface of the sliding rod, and one side of the slider is fixedly connected with the side wall of the reciprocating plate.

[0012] According to the described pole piece die-cutting device for a lithium battery, the die-cutting table is located below the die-cutting knife.

[0013] According to the described pole piece die-cutting device for a lithium battery, a collection box is arranged on the base.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the described pole piece die-cutting device for a lithium battery, by arranging the installation groove, the second motor, the bidirectional screw, and the threaded block, the limiting plate is driven to move to limit the pole piece, preventing the pole piece conveyed to the die-cutting table from shifting, and improving the die-cutting quality.

[0016] 2. For the described pole piece die-cutting device for a lithium battery, by arranging the vertical rod, the third motor, the rotating rod, the rocker, the rotating seat, the reciprocating rod, and the reciprocating plate, the die-cutting knife is driven to reciprocate up and down to realize the die-cutting of the pole piece.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0019] Figure 1 is a perspective view of the pole piece die-cutting device for a lithium battery of the present utility model;

[0020] Figure 2 is a partial cross-sectional view of the base of the pole piece die-cutting device for a lithium battery of the present utility model;

[0021] Figure 3 is for the present utility model Figure 1 magnified schematic diagram at A in

[0022] Figure 4 For the present utility model Figure 1 The enlarged schematic view at position B in it.

[0023] In the figure: 1. Base; 2. Fixed plate; 3. Connecting frame; 4. First motor; 5. Driven gear; 6. Conveyor roller; 7. Installation groove; 8. Second motor; 9. Bi-directional screw; 10. Threaded block; 11. Bearing; 12. Driving gear; 13. Mounting frame; 14. Vertical rod; 15. Third motor; 16. Rotating rod; 17. Rocker; 18. Rotating seat; 19. Reciprocating rod; 20. Reciprocating plate; 21. Die cutting knife; 22. Die cutting table; 23. Chute; 24. Slide bar; 25. Slide block; 26. Collection box; 27. Limiting plate. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the embodiments of the present utility model provide a technical solution: a pole piece die cutting device for lithium batteries, including a base 1. The upper end of the base 1 is symmetrically and fixedly connected with fixed plates 2. One side of one fixed plate 2 is fixedly connected with a connecting frame 3. The upper end of the connecting frame 3 is fixedly connected with a first motor 4. The output shaft of the first motor 4 is fixedly connected with a driving gear 12. One side of one fixed plate 2 is rotatably connected with a driven gear 5. The driving gear 12 and the driven gear 5 are both fixedly connected with conveyor rollers 6 on one side. By setting the first motor 4, the driving gear 12, the driven gear 5, and the conveyor rollers 6, the pole piece is conveyed;

[0026] The upper surface of the base 1 is provided with an installation groove 7. A second motor 8 is fixedly connected inside the installation groove 7. The output shaft of the second motor 8 is fixedly connected with a bidirectional screw 9. The outer surface of the bidirectional screw 9 is symmetrically thread-connected with thread blocks 10. The upper ends of the two thread blocks 10 are fixedly connected with limiting plates 27. By setting the installation groove 7, the second motor 8, the bidirectional screw 9, and the thread blocks 10, the limiting plates 27 are driven to move to limit the pole piece, prevent the pole piece transported to the die-cutting table 22 from shifting, and improve the die-cutting quality. The upper end of the base 1 is fixedly connected with an installation frame 13. The upper end of the installation frame 13 is fixedly connected with a vertical rod 14. The upper end of the vertical rod 14 is fixedly connected with a third motor 15. The output shaft of the third motor 15 is fixedly connected with a rotating rod 16. One side of the rotating rod 16 is rotatably connected with a rocker 17. The lower end of the rocker 17 is rotatably connected with a rotating seat 18. The lower end of the rotating seat 18 is fixedly connected with a reciprocating rod 19. The lower end of the reciprocating rod 19 is fixedly connected with a reciprocating plate 20. The lower end of the reciprocating plate 20 is fixedly connected with a die-cutting knife 21. The upper end of the base 1 is fixedly connected with a die-cutting table 22. By setting the vertical rod 14, the third motor 15, the rotating rod 16, the rocker 17, the rotating seat 18, the reciprocating rod 19, and the reciprocating plate 20, the die-cutting knife 21 is driven to reciprocate up and down to realize the die-cutting of the pole piece.

[0027] The driving gear 12 meshes with the driven gear 5. One side of the bidirectional screw 9 is fixedly connected with a bearing 11 to facilitate the rotation of the bidirectional screw 9. The bearing 11 is fixed to the side wall of the installation groove 7. The lower end of the thread block 10 is slidably connected with the bottom wall of the installation groove 7. The limiting plate 27 is slidably arranged on the outer surface of the conveying roller 6. Both inner walls of the installation frame 13 are provided with sliding grooves 23. A sliding rod 24 is fixedly connected inside the sliding grooves 23. The outer surface of the sliding rod 24 is slidably connected with a slider 25. One side of the slider 25 is fixedly connected with the side wall of the reciprocating plate 20. By setting the sliding grooves 23, the sliding rod 24, and the slider 25, it is convenient to limit the reciprocating plate 20 and prevent it from shifting. The die-cutting table 22 is located below the die-cutting knife 21. A collection box 26 is arranged on the base 1 to facilitate the collection of the die-cut pole pieces.

[0028] Working principle: During use, power is connected, and the second motor 8 is started. The second motor 8 drives the bidirectional screw 9 to rotate. The bidirectional screw 9 drives the threaded block 10 to move. The threaded block 10 drives the limiting plate 27 to move, thereby restricting the pole pieces of different widths. The first motor 4 is started. The first motor 4 drives the driving gear 12 to rotate. The driving gear 12 drives the driven gear 5 to rotate. The driving gear 12 and the driven gear 5 drive the conveying rollers 6 to rotate, thereby conveying the pole pieces. The pole pieces are conveyed to the die-cutting table 22. The third motor 15 is started. The third motor 15 drives the rotating rod 16 to rotate. The rotating rod 16 drives the rocker 17 to rotate. The rocker 17 further drives the reciprocating rod 19 to achieve reciprocating lifting, thereby driving the reciprocating plate 20 and the die-cutting knife 21 to achieve reciprocating lifting, and die-cutting the pole pieces. The die-cut pole pieces are collected through the collection box 26.

[0029] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A lithium battery electrode die-cutting device, comprising a base (1), characterized in that: The upper end of the base (1) is symmetrically fixedly connected to a fixing plate (2), one side of the fixing plate (2) is fixedly connected to a connecting frame (3), the upper end of the connecting frame (3) is fixedly connected to a first motor (4), the output shaft of the first motor (4) is fixedly connected to a driving gear (12), one side of the fixing plate (2) is rotatably connected to a driven gear (5), and one side of the driving gear (12) and the driven gear (5) are both fixedly connected to a conveying roller (6); The upper surface of the base (1) is provided with a mounting groove (7), the interior of the mounting groove (7) is fixedly connected to a second motor (8), the output shaft of the second motor (8) is fixedly connected to a bidirectional screw rod (9), the outer surface of the bidirectional screw rod (9) is symmetrically threadedly connected to a threaded block (10), the upper ends of the two threaded blocks (10) are fixedly connected to a limiting plate (27), the upper end of the base (1) is fixedly connected to a mounting frame (13), the upper end of the mounting frame (13) is fixedly connected to a vertical rod (14), and the upper end of the vertical rod (14) is fixedly connected to the mounting frame (13). A third motor (15) is fixedly connected, the output shaft of the third motor (15) is fixedly connected to a rotating rod (16), one side of the rotating rod (16) is rotatably connected to a rocker (17), the lower end of the rocker (17) is rotatably connected to a rotating seat (18), the lower end of the rotating seat (18) is fixedly connected to a reciprocating rod (19), the lower end of the reciprocating rod (19) is fixedly connected to a reciprocating plate (20), the lower end of the reciprocating plate (20) is fixedly connected to a die-cutting knife (21), and the upper end of the base (1) is fixedly connected to a die-cutting table (22).

2. A lithium battery pole piece die-cutting device as claimed in claim 1, characterized in that: The driving gear (12) is meshed with the driven gear (5).

3. A lithium battery pole piece die-cutting device as claimed in claim 1, characterized in that: A bearing (11) is fixedly connected to one side of the bidirectional screw rod (9), and the bearing (11) is fixed to the side wall of the mounting groove (7).

4. A lithium battery pole piece die-cutting device as claimed in claim 1, characterized in that: The lower end of the threaded block (10) is slidably connected to the bottom wall of the mounting groove (7).

5. A lithium battery pole piece die-cutting device as claimed in claim 1, characterized in that: The limiting plate (27) is slidably arranged on the outer surface of the conveying roller (6).

6. A lithium battery pole piece die-cutting device as claimed in claim 1, characterized in that: Both inner walls of the mounting frame (13) are provided with sliding grooves (23), the interior of the sliding grooves (23) is fixedly connected with a sliding rod (24), the outer surface of the sliding rod (24) is slidably connected with a sliding block (25), and one side of the sliding block (25) is fixedly connected to the side wall of the reciprocating plate (20).

7. A lithium battery pole piece die-cutting device as claimed in claim 1, characterized in that: The die-cutting platform (22) is located below the die-cutting knife (21).

8. A lithium battery pole piece die-cutting device as claimed in claim 1, characterized in that: The base (1) is provided with a collecting frame (26).

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