Diaphragm swing mechanism

Abstract

The utility model relates to a diaphragm swing mechanism which comprises a base, a rolling assembly, a deviation rectifying assembly, a hot cutting assembly and a guide rail, the deviation rectifying assembly and the guide rail are installed on the base, the deviation rectifying assembly drives the rolling assembly to move along the guide rail, and the rolling assembly comprises a first clamping roller unit, a first passing roller, a second passing roller, a second clamping roller unit and a movable seat. The first clamping roller unit, the first passing roller, the second passing roller, the second clamping roller unit and the hot cutting assembly are installed on the movable base, and a diaphragm sequentially passes through the first clamping roller unit, the first passing roller, the second passing roller and the second clamping roller unit. According to the diaphragm swing mechanism, the edge position of the diaphragm is recognized through the deviation correction sensor, deviation correction control is conducted on the diaphragm in real time, the alignment degree in the lamination process is guaranteed, the cover plate protective covers on the two sides can reduce the influence of wind resistance on diaphragm swing in the left-right swing process, the diaphragm hot cutting mechanism rapidly cuts off the diaphragm, and the overall structure is simple, light and effective; the lamination efficiency is improved, the cost is saved, and the production efficiency is effectively improved.

Description

Technical Field

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

[0002] Lithium-ion batteries are a new generation of green high-energy batteries with excellent performance and have become one of the key points of high-tech development. Lithium-ion batteries have the following characteristics: high voltage, high capacity, low consumption, no memory effect, no pollution, small size, low internal resistance, low self-discharge, and many cycles. Due to the above characteristics, lithium-ion batteries have been applied to many civil and military fields such as mobile phones, laptops, camcorders, digital cameras, etc.

[0003] As an important component of lithium batteries, pole pieces play a vital role in the performance of batteries. The cells of lithium-ion batteries are formed by stacking multiple groups of positive and negative pole pieces alternately. The existing cell stacking process is to stack single pieces alternately. During the process of alternate stacking of diaphragms, the diaphragms are prone to shifting, resulting in the inability to maintain neatness during subsequent stacking, thus resulting in defective products. Utility Model Content

[0004] The main purpose of the utility model is to provide a diaphragm swing mechanism to solve the above technical problems and to correct the deviation of the diaphragm in real time.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A diaphragm swing mechanism includes a base, a roller conveying assembly, a deviation correction assembly, a hot cutting assembly and a guide rail, wherein the deviation correction assembly and the guide rail are installed on the base, and the deviation correction assembly drives the roller conveying assembly to move along the guide rail. The roller conveying assembly includes a first clamping roller unit, a first passing roller, a second passing roller, a second clamping roller unit and a movable seat, and the first clamping roller unit, the first passing roller, the second passing roller, the second clamping roller unit and the hot cutting assembly are installed on the movable seat, and the diaphragm passes through the first clamping roller unit, the first passing roller, the second passing roller and the second clamping roller unit in sequence.

[0007] As a preferred technical solution, the correction component includes a correction sensor structure, a correction motor, a correction screw and a correction connecting block. The correction connecting block and the correction sensor structure are installed on the movable seat, the correction screw is engaged with the correction connecting block, and the correction motor drives the correction screw to rotate.

[0008] As a preferred technical solution, the correction sensor structure includes a correction sensor and a correction sensor bracket, and the correction sensor is installed on the correction sensor bracket.

[0009] As a preferred technical solution, the hot cutting assembly includes a hot cutting bracket, a hot cutting cylinder, a thermal fuse bracket and a thermal fuse, the thermal fuse is installed on the thermal fuse bracket, the hot cutting cylinder is installed on the hot cutting bracket, and the hot cutting cylinder drives the thermal fuse bracket to move.

[0010] As a preferred technical solution, the thermal fuse bracket includes a mounting plate, a clamping portion, a fixing portion, an abutting portion, a spring, a mounting rod and a limiting rod. The fixing portion is fixed on the mounting plate, the mounting rod passes through the fixing portion and the abutting portion, the spring is inserted into the mounting rod, the clamping portion is installed at both ends of the mounting rod, one end of the spring abuts against the clamping portion, and the other end abuts against the abutting portion, one end of the limiting rod is fixed on the abutting portion and inserted into the clamping portion, and the clamping portion clamps both ends of the thermal fuse.

[0011] As a preferred technical solution, it further includes a film pressing structure, and the film pressing structure is installed on the movable seat.

[0012] As a preferred technical solution, the film pressing structure includes a film pressing cylinder and a film pressing block, and the film pressing cylinder drives the film pressing block to move relative to the second roller.

[0013] The roller conveying assembly also includes a cover plate shield, which is arranged on the two end surfaces of the movable seat.

[0014] The beneficial effects of the utility model are as follows: the above-mentioned diaphragm swing mechanism can identify the edge position of the diaphragm through the correction sensor, and perform correction control on the diaphragm in real time to ensure the alignment of the stacking process. The cover shields on both sides can reduce the influence of wind resistance on the diaphragm swinging during the left and right swinging process. The diaphragm hot cutting mechanism quickly cuts off the diaphragm. The overall structure is simple, light and effective, which is conducive to improving the stacking efficiency and saving costs at the same time. It is flexible and agile in operation and can effectively improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure diagram of the diaphragm swing mechanism involved in the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure diagram of the diaphragm swing mechanism involved in the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 It is a schematic diagram of the diaphragm tape transport involved in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the hot cutting component involved in the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Please combine Figure 1 , Figure 2 and Figure 3 As shown, a diaphragm swing mechanism includes a base 1, a roller conveying assembly 5, a deviation correction assembly 3, a hot cutting assembly 4, a guide rail 2 and a film pressing structure. The deviation correction assembly 3 and the guide rail 2 are installed on the base 1. The deviation correction assembly 3 drives the roller conveying assembly 5 to move along the guide rail 2. The roller conveying assembly 5 includes a first clamping roller unit 52, a first over roller 53, a second over roller 54, a second clamping roller unit 55 and a movable seat 51. The first clamping roller unit 52, the first over roller 53, the second over roller 4, the second clamping roller unit 55, the hot cutting assembly 4 and the film pressing structure are installed on the movable seat 51. The diaphragm a passes through the first clamping roller unit 52, the first over roller 53, the second over roller 54 and the second clamping roller unit 55 in sequence. The first clamping roller unit 52 includes two first clamping rollers 521, and the two first clamping rollers 521 abut against each other. The second clamping roller unit 55 includes two second clamping rollers 551, and the two second clamping rollers 551 abut against each other.

[0021] The roller conveying assembly 5 also includes a cover plate shield 56, which is arranged on the two end surfaces of the movable seat 51 and covers the outer surfaces of the first clamping roller unit 52 and the first passing roller 53, so as to prevent wind resistance from affecting the diaphragm swing.

[0022] Please continue to refer to Figure 1 As shown, the deflection correction component 3 includes a deflection correction sensor structure 35, a deflection correction motor 31, a deflection correction screw 32, a deflection correction connection block 33 and a deflection correction connection seat 34. The deflection correction connection seat 34 and the deflection correction sensor structure 35 are installed on the movable seat 51. The deflection correction screw 32 is engaged with the deflection correction connection block 33. The deflection correction connection block 33 is fixed on the deflection correction connection seat 34. The deflection correction motor 31 drives the deflection correction screw 32 to rotate, thereby driving the deflection correction connection block 33 to move, so as to drive the movable seat 51 to move along the guide rail 2. The deflection correction sensor structure 35 includes a deflection correction sensor 352 and a deflection correction sensor bracket 351. The deflection correction sensor 352 is installed on the deflection correction sensor bracket 351. The deflection correction sensor bracket 351 is installed on the movable seat 51. The deflection correction sensor 352 is aligned with the edge of the diaphragm a.

[0023] Please refer to Figure 4As shown, the hot cutting assembly 4 includes a hot cutting bracket 46, a hot cutting cylinder 41, a guide rod 42, a guide sleeve 43, a thermal fuse bracket 44 and a thermal fuse 45. The thermal fuse 34 is installed on the thermal fuse bracket 33, the hot cutting cylinder 41 and the guide sleeve 43 are installed on the hot cutting bracket 46, one end of the guide rod 42 is fixed on the thermal fuse bracket 44 and inserted into the guide sleeve 43, the hot cutting cylinder 41 drives the thermal fuse bracket 44 to move along the guide rod 42, thereby driving the thermal fuse 45 to move, so as to cut the diaphragm a. The thermal fuse bracket 44 includes a mounting plate 441, a clamping portion 445, a fixing portion 442, an abutting portion 444, a spring 446, a mounting rod 443 and a limiting rod 447. The fixing portion 442 is fixed on the mounting plate 441, the mounting rod 443 passes through the fixing portion 442 and the abutting portion 444, the spring 446 is inserted into the mounting rod 443, the clamping portion 445 is installed at both ends of the mounting rod 443, one end of the spring 446 abuts against the clamping portion 445, and the other end abuts against the abutting portion 444, one end of the limiting rod 447 is fixed on the abutting portion 444 and inserted into the clamping portion 445, and the clamping portion 445 clamps both ends of the thermal fuse 45.

[0024] The film pressing structure includes a film pressing cylinder 6 and a film pressing block (not shown in the figure). The film pressing cylinder 6 drives the film pressing block to move relative to the second roller 54.

[0025] When the above-mentioned diaphragm swing mechanism is in use, the correction sensor 352 recognizes that the edge of the diaphragm is offset, and the correction motor 31 drives the correction screw 32 to rotate, thereby driving the correction connecting block 33 to move, thereby driving the movable seat 51 to move along the guide rail 2 to achieve correction of the diaphragm.

[0026] When the diaphragm needs to be cut, the film pressing cylinder 6 drives the film pressing block to move relative to the second roller 54 to press the diaphragm onto the second roller 54, and the hot cutting cylinder 41 drives the thermal fuse bracket 44 to move along the guide rod 42, thereby driving the thermal fuse 45 to move to cut the diaphragm a.

[0027] The above-described embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent application scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A diaphragm swing mechanism, characterized in that: It includes a base, a roller conveying assembly, a deviation correction assembly, a hot cutting assembly and a guide rail, the deviation correction assembly and the guide rail are installed on the base, the deviation correction assembly drives the roller conveying assembly to move along the guide rail, the roller conveying assembly includes a first clamping roller unit, a first passing roller, a second passing roller, a second clamping roller unit and a movable seat, the first clamping roller unit, the first passing roller, the second passing roller, the second clamping roller unit and the hot cutting assembly are installed on the movable seat, and the diaphragm passes through the first clamping roller unit, the first passing roller, the second passing roller and the second clamping roller unit in sequence.

2. The diaphragm swing mechanism according to claim 1, characterized in that: The correction component includes a correction sensor structure, a correction motor, a correction screw and a correction connection block. The correction connection block and the correction sensor structure are installed on the movable seat. The correction screw is engaged with the correction connection block. The correction motor drives the correction screw to rotate.

3. The diaphragm swing mechanism according to claim 2, characterized in that: The deflection correction sensor structure comprises a deflection correction sensor and a deflection correction sensor bracket, and the deflection correction sensor is installed on the deflection correction sensor bracket.

4. The diaphragm swing mechanism according to claim 1, characterized in that: The hot-cut assembly comprises a hot-cut bracket, a hot-cut cylinder, a thermal fuse bracket and a thermal fuse. The thermal fuse is installed on the thermal fuse bracket. The hot-cut cylinder is installed on the hot-cut bracket. The hot-cut cylinder drives the thermal fuse bracket to move.

5. The diaphragm swing mechanism according to claim 4, characterized in that: The thermal fuse bracket includes a mounting plate, a clamping portion, a fixing portion, an abutting portion, a spring, a mounting rod and a limiting rod. The fixing portion is fixed on the mounting plate, the mounting rod passes through the fixing portion and the abutting portion, the spring is inserted into the mounting rod, the clamping portion is mounted on both ends of the mounting rod, one end of the spring abuts against the clamping portion, and the other end abuts against the abutting portion, one end of the limiting rod is fixed on the abutting portion and inserted into the clamping portion, and the clamping portion clamps both ends of the thermal fuse.

6. The diaphragm swing mechanism according to claim 1, characterized in that: It further comprises a film pressing structure, and the film pressing structure is installed on the movable seat.

7. The diaphragm swing mechanism according to claim 6, characterized in that: The film pressing structure includes a film pressing cylinder and a film pressing block, and the film pressing cylinder drives the film pressing block to move relative to the second roller.

8. The diaphragm swing mechanism according to claim 1, characterized in that: The roller conveying assembly also includes a cover plate shield, which is arranged on the two end surfaces of the movable seat.

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