Lithium battery diaphragm compounding device

Abstract

The utility model discloses a lithium battery diaphragm compounding device, which relates to the technical field of lithium battery diaphragm production and comprises two groups of side plates, guide rails fixedly connected to the top ends of the side plates, compounding shafts cooperatively connected to the inner walls of the side plates, storage boxes fixedly connected to the inner walls of the side plates, and two groups of limiting plates cooperatively connected with the guide rails respectively. The side end of the limiting plate is fixedly connected with a clamping assembly, the clamping assembly is matched with the composite shaft, the two ends of the supporting plate are connected with the side plates in a matched mode respectively, the bottom end of the supporting plate is connected with a cutter in a matched mode, and the cutter is matched with the composite shaft. The clamping effect of the clamping assembly prevents the lithium battery diaphragm and the compounding shaft from slipping, and when the lithium battery diaphragm and the next pole piece are compounded, the clamping assembly relieves the clamping effect on the lithium battery diaphragm, so that the compounding accuracy of the lithium battery diaphragm and the next pole piece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery diaphragm production, in particular to a lithium battery diaphragm composite device. Background Art

[0002] Lithium battery separator is one of the key components of lithium-ion batteries. Its main function is to physically separate the positive and negative electrodes to prevent short circuits caused by direct contact, while allowing lithium ions to pass freely to achieve ion transfer and charge compensation between the positive and negative electrodes. The performance of the separator has an important impact on the battery's capacity, rate, cycle life and safety.

[0003] In the prior art, lithium battery separators are often compounded using compounding equipment and motors. The separator and the pole piece are moved together through the compounding roller of the compounding equipment. The motor drives the compounding roller to rotate. When the pole piece passes through the compounding roller, the cutting knife on the compounding equipment cuts the lithium battery separator.

[0004] However, after the lithium battery separator is cut, the lithium battery separator will be quickly pulled out of the composite roller under the tension at the rear end of the composite roller, causing the lithium battery separator and the composite roller to slip. The slippage of the lithium battery separator will affect the measurement of the material length by the composite equipment, thereby affecting the accuracy of the lithium battery separator composite. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery diaphragm composite device to solve the technical problem in the prior art that after the lithium battery diaphragm is cut, the lithium battery diaphragm will be quickly pulled out of the composite roller under the action of the tension at the rear end of the composite roller, causing the lithium battery diaphragm and the composite roller to slip. The slippage of the lithium battery diaphragm will affect the measurement of the material length by the composite equipment, thereby affecting the accuracy of the composite of the lithium battery diaphragm.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] A lithium battery separator composite device, comprising:

[0008] Side panels, the side panels are provided in two groups, the top ends of the side panels are fixedly connected to the guide rails, the inner walls of the side panels are cooperatively connected to the composite shafts, and the inner walls of the side panels are fixedly connected to the storage boxes;

[0009] The limiting plates are provided with two groups and are respectively connected with the guide rails. The side ends of the limiting plates are fixedly connected with clamping components, and the clamping components cooperate with the composite shaft;

[0010] The support plate has two ends respectively connected with the side plates, and the bottom end of the support plate is connected with a cutter, which is matched with the composite shaft.

[0011] As a further solution of the present invention: a slide groove is opened inside the guide rail, a servo motor is fixedly connected to the side end of the guide rail, the servo motor is fixedly connected to the side plate, a slide is clamped in the slide groove and is slidably connected to the slide, and the slide is fixedly connected to the limit plate.

[0012] As a further solution of the present invention: a threaded hole is formed through the slide seat, a threaded rod is threadedly connected to the inner wall of the threaded hole, and the threaded rod is fixedly connected to the servo motor.

[0013] As a further solution of the present invention: the clamping assembly includes: a clamper and a clamping plate, the clamper is fixedly connected to the limit plate, the clamping plate is provided with two groups and is respectively located at the upper and lower ends of the clamper, and the clamping plate is cooperatively connected to the clamper.

[0014] As a further solution of the present invention: the side panel is longitudinally provided with an adjustment groove, the top end of the side panel is fixedly connected to a driving machine, the inner wall of the side panel is cooperatedly connected with a number of conveying shafts along the length direction, the inner wall of the adjustment groove is clamped and connected with an adjustment seat, the adjustment seat cooperates with the driving machine, the adjustment seat is fixedly connected to the support plate, and the conveying shaft cooperates with the composite shaft.

[0015] As a further solution of the present invention: a plurality of connecting holes are opened at the bottom of the support plate along the length direction, a connecting column is slidably connected to the inner wall of the connecting hole, a spring is provided inside the connecting hole, the upper and lower ends of the spring are respectively fixedly connected to the support plate and the connecting column, and the bottom end of the connecting column is fixedly connected to a pressure plate.

[0016] Beneficial effects of the utility model:

[0017] 1. The lithium battery diaphragm is stored in a storage box. When the lithium battery diaphragm is taken out of the storage box and passes through the composite shaft together with the electrode, the composite shaft is driven to rotate by the motor of the prior art, and the composite shaft composites the lithium battery diaphragm and the electrode. When the electrode passes through the composite shaft, the composite shaft stops rotating, the clamping assembly clamps the lithium battery diaphragm, the support plate moves to the top of the lithium battery diaphragm, the cutter at the bottom of the support plate moves, and the cutter cuts the lithium battery diaphragm.

[0018] 2. When the lithium battery diaphragm is cut, the clamping effect of the clamping assembly prevents the lithium battery diaphragm and the composite shaft from slipping. When the lithium battery diaphragm and the next electrode are composited, the clamping assembly releases the clamping effect on the lithium battery diaphragm, thereby ensuring the accuracy of the composite of the lithium battery diaphragm and the next electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a top view of the overall structure of the utility model;

[0022] Figure 3 This is the AA cross-sectional view of the overall structure of the utility model;

[0023] Figure 4 BB is a cross-sectional view of the overall structure of the utility model;

[0024] Figure 5 This is a CC sectional view of the overall structure of the present utility model;

[0025] Figure 6 For the utility model Figure 5 A magnified schematic diagram of the structure at A;

[0026] Figure 7 This is a schematic diagram of the guide rail structure of the present utility model;

[0027] Figure 8 This is a schematic diagram of the limit plate structure of the utility model;

[0028] Figure 9 This is a schematic diagram of the support plate structure of the present utility model.

[0029] In the figure: 1. Side panel; 2. Storage box; 3. Guide rail; 4. Drive motor; 5. Servo motor; 6. Conveyor shaft; 7. Threaded rod; 8. Slide; 9. Slide seat; 10. Limit plate; 11. Adjustment slot; 12. Adjustment seat; 13. Support plate; 14. Clamp; 15. Clamping plate; 16. Composite shaft; 17. Cutter; 18. Connecting hole; 19. Spring; 20. Connecting column; 21. Press plate; 22. Threaded hole. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1-9 As shown, a lithium battery diaphragm composite device includes: a side plate 1, a limiting plate 10 and a support plate 13,

[0032] The side panels 1 are provided with two groups. The top of the side panels 1 is fixedly connected to the guide rail 3. The inner wall of the side panels 1 is cooperatively connected to the composite shaft 16. The inner wall of the side panels 1 is fixedly connected to the storage box 2. The lithium battery diaphragm is stored in the storage box 2. When the lithium battery diaphragm is taken out of the storage box 2 and passes through the composite shaft 16 together with the electrode, the composite shaft 16 is driven to rotate by the motor of the prior art, and the composite shaft 16 composites the lithium battery diaphragm and the electrode.

[0033] The limiting plate 10 is provided with two groups and is respectively connected with the guide rail 3. The side end of the limiting plate 10 is fixedly connected with a clamping assembly, and the clamping assembly cooperates with the composite shaft 16. The two ends of the support plate 13 are respectively connected with the side plate 1, and the bottom end of the support plate 13 is cooperated with a cutter 17, which cooperates with the composite shaft 16. When the pole piece passes through the composite shaft 16, the composite shaft 16 stops rotating, and the clamping assembly clamps the lithium battery diaphragm. The support plate 13 moves to the top of the lithium battery diaphragm, and the cutter 17 at the bottom end of the support plate 13 moves, and the cutter 17 cuts the lithium battery diaphragm. When the lithium battery diaphragm is cut, the clamping effect of the clamping assembly prevents the lithium battery diaphragm and the composite shaft 16 from slipping. When the lithium battery diaphragm and the next pole piece are compounded, the clamping assembly releases the clamping effect on the lithium battery diaphragm, thereby ensuring the accuracy of the compounding of the lithium battery diaphragm and the next pole piece.

[0034] When the servo motor 5 is running, the servo motor 5 rotates with the threaded rod 7, and the threaded rod 7 is threadedly connected to the threaded hole 22 to drive the slide 9 to slide along the inner wall of the chute 8, thereby realizing the adjustment of the distance between the two groups of limit plates 10, thereby ensuring that the limit plates 10 can limit lithium battery diaphragms of different sizes.

[0035] In some specific embodiments, the clamping assembly includes: a clamper 14 and a clamping plate 15. The clamper 14 is fixedly connected to the limit plate 10. The clamping plates 15 are provided in two groups and are respectively located at the upper and lower ends of the clamper 14. The clamping plates 15 are cooperatively connected with the clamper 14. When the limit plate 10 moves to the side end of the lithium battery diaphragm, the lithium battery diaphragm is located between the two groups of clamping plates 15. When the clamper 14 is running, the clamper 14 drives the two groups of clamping plates 15 to move toward the lithium battery diaphragm, and the two groups of clamping plates 15 thereby clamp the lithium battery diaphragm.

[0036] In some specific embodiments, an adjustment groove 11 is longitudinally opened on the side panel 1, a driving machine 4 is fixedly connected to the top of the side panel 1, and a plurality of conveying shafts 6 are connected to the inner wall of the side panel 1 along the length direction. An adjustment seat 12 is clamped and connected to the inner wall of the adjustment groove 11, and the adjustment seat 12 cooperates with the driving machine 4. The adjustment seat 12 is fixedly connected to the support plate 13, and the conveying shaft 6 cooperates with the composite shaft 16. When the lithium battery diaphragm and the machine sheet pass through the composite shaft 16, the lithium battery diaphragm and the electrode sheet move to the conveying shaft 6, and the two ends of the conveying shaft 6 rotate along the side panel 1. The conveying shaft 6 can be driven by an electric motor of the prior art, and the conveying shaft 6 conveys the composite lithium battery diaphragm. When the support plate 13 moves in height, the driving machine 4 drives the adjusting seat 12 to move along the inner wall of the adjustment groove 11, and the adjustment groove 11 moves with the support plate 13, thereby realizing the height adjustment of the support plate 13.

[0037] In some specific embodiments, a plurality of connecting holes 18 are opened at the bottom of the support plate 13 along the length direction, and a connecting column 20 is slidably connected to the inner wall of the connecting hole 18. A spring 19 is provided inside the connecting hole 18. The upper and lower ends of the spring 19 are fixedly connected to the support plate 13 and the connecting column 20 respectively, and the bottom end of the connecting column 20 is fixedly connected to a pressure plate 21. When the support plate 13 moves to the top of the lithium battery diaphragm, the pressure plate 21 at the bottom of the support plate 13 and the lithium battery diaphragm are supported. The pressure plate 21 supports the connecting column 20 and moves upward along the inner wall of the connecting hole 18. The connecting hole 18 compresses the spring 19, wherein the pressure plate 21 supports the lithium battery diaphragm to prevent the lithium battery diaphragm from tilting and deflecting when it is cut by the cutter 17. At the same time, the elastic tension provided by the spring 19 is transmitted to the pressure plate 21 through the connecting column 20, ensuring that the pressure plate 21 fully supports and limits the lithium battery diaphragm.

[0038] The above describes several embodiments of the present invention in detail, but the present invention is not limited to these embodiments and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A lithium battery separator composite device, characterized in that: include: Side panels (1), the side panels (1) are provided with two groups, the top ends of the side panels (1) are fixedly connected to guide rails (3), the inner walls of the side panels (1) are cooperatively connected to composite shafts (16), and the inner walls of the side panels (1) are fixedly connected to storage boxes (2); A limit plate (10), wherein the limit plate (10) is provided with two groups and is respectively connected to the guide rail (3); a clamping assembly is fixedly connected to the side end of the limit plate (10), and the clamping assembly is matched with the composite shaft (16); A support plate (13), both ends of the support plate (13) are respectively connected to the side plates (1), the bottom end of the support plate (13) is connected to a cutter (17), and the cutter (17) is connected to the composite shaft (16).

2. A lithium battery separator composite device according to claim 1, characterized in that: A slide groove (8) is provided inside the guide rail (3), a servo motor (5) is fixedly connected to the side end of the guide rail (3), the servo motor (5) is fixedly connected to the side plate (1), a slide seat (9) is clamped and connected in the slide groove (8) and is slidably connected to the slide seat (9), and the slide seat (9) is fixedly connected to the limit plate (10).

3. A lithium battery separator composite device according to claim 2, characterized in that: The slide seat (9) is provided with a threaded hole (22) extending therethrough, the inner wall of the threaded hole (22) is threadedly connected to a threaded rod (7), and the threaded rod (7) is fixedly connected to the servo motor (5).

4. A lithium battery separator composite device according to claim 1, characterized in that: The clamping assembly comprises: a clamp (14) and a clamping plate (15); the clamp (14) is fixedly connected to the limit plate (10); the clamping plates (15) are provided with two groups and are respectively located at the upper and lower ends of the clamp (14); the clamping plates (15) are cooperatively connected to the clamp (14).

5. The lithium battery separator composite device according to claim 1, characterized in that: The side plate (1) is longitudinally provided with an adjustment groove (11), the top end of the side plate (1) is fixedly connected to a driving machine (4), the inner wall of the side plate (1) is matched and connected to a plurality of conveying shafts (6) along the length direction, the inner wall of the adjustment groove (11) is clamped and connected to an adjustment seat (12), the adjustment seat (12) is matched with the driving machine (4), the adjustment seat (12) is fixedly connected to the support plate (13), and the conveying shaft (6) is matched with the composite shaft (16).

6. A lithium battery separator composite device according to claim 1, characterized in that: The bottom of the support plate (13) is provided with a plurality of connection holes (18) along the length direction, the inner wall of the connection hole (18) is slidably connected to a connection column (20), a spring (19) is provided inside the connection hole (18), the upper and lower ends of the spring (19) are respectively fixedly connected to the support plate (13) and the connection column (20), and the bottom end of the connection column (20) is fixedly connected to a pressure plate (21).

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