Pole piece rolling deviation rectifying device

Abstract

The utility model discloses a pole piece rolling deviation rectifying device which comprises a traction roller and a driven roller arranged at the front end of the traction roller and further comprises opposite side deviation rectifying mechanisms symmetrically arranged at the two ends of the driven roller. The opposite side deviation rectifying mechanism comprises a push rod, a connecting plate fixed at one end of the push rod, a deviation rectifying plate connected with the connecting plate and a roller; wherein the deviation rectifying plate is parallel to the driven roller, the rolling wheel is located above the deviation rectifying plate, and the rolling wheel is rotationally connected with the connecting plate through a rotating shaft. The opposite side deviation rectifying mechanism is arranged at the front end of the rolling process, the electric push rod pushes the connecting plate to move towards the middle, so that the side edge of the pole piece enters the slit between the roller and the deviation rectifying plate, the roller rolls on the surface of the pole piece to realize opposite side deviation rectifying, the pole piece is effectively prevented from deviating before rolling, and the quality of the pole piece is improved. And the pole piece production quality is obviously improved. And the flattening mechanism is used for preliminarily flattening wrinkles of the pole piece before deviation rectification, so that stable operation of the pole piece before deviation rectification is ensured.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery electrode processing technology, and in particular to an electrode roller pressing and correction device. Background Technology

[0002] In the lithium battery electrode processing, the coated electrodes need to be rolled to achieve the required compaction density. However, in existing technologies, the electrodes are prone to shifting before rolling, resulting in uneven stacking during rolling, which seriously affects production quality and efficiency. In addition, the electrodes are also prone to wrinkling during transportation, further affecting product quality. Utility Model Content

[0003] The purpose of this invention is to provide an electrode roll forming correction device, which corrects the edge alignment of the electrode through an edge correction mechanism, effectively preventing the electrode from shifting before rolling and significantly improving the quality of electrode production.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model discloses an electrode roll pressing and correction device, including a traction roller, a driven roller disposed at the front end of the traction roller, and a side correction mechanism symmetrically disposed at both ends of the driven roller; the side correction mechanism includes a push rod, a connecting plate fixed to one end of the push rod, a correction plate connected to the connecting plate, and a roller; wherein, the correction plate is parallel to the driven roller, the roller is located above the correction plate, and the roller is rotatably connected to the connecting plate through a rotating shaft.

[0006] A further embodiment includes a smoothing mechanism; the smoothing mechanism includes a guide rod disposed above and parallel to the traction roller, a bushing slidably connected to the guide rod, and a bent plate connected to the bushing; the extended end of the bent plate is parallel to the traction roller.

[0007] A further embodiment: the smoothing mechanism also includes an elastic element connecting the extended end of the bent plate and the bushing.

[0008] A further solution: the bushing and the guide rod are connected with a clearance fit.

[0009] A further option includes a take-up roller located at the front end of the traction roller.

[0010] A further embodiment includes support seats located at both ends of the take-up roller, a motor for driving the take-up roller to rotate, and clamping plates parallel to the take-up roller; the ends of the clamping plates are fixed to the inside of the support seats.

[0011] A further embodiment includes a base, a first gantry and a second gantry mounted on the base; the end of the driven roller is connected to the first gantry, and both ends of the traction roller and the guide rod are connected to the second gantry; the end of the push rod passes through the side plate of the first gantry and the second gantry.

[0012] A further option includes an upper pressure roller and a lower pressure roller located between the traction roller and the take-up roller.

[0013] A further solution: a slit is formed between the upper and lower pressure rollers to allow the electrode sheet to pass through, and the height of the slit is the same as the height of the correction plate.

[0014] A further solution: the number of correction plates is two.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention incorporates an edge-aligning correction mechanism at the front end of the rolling process. An electric pusher moves a connecting plate towards the center, causing the electrode edge to enter the narrow gap between the roller and the correction plate. The roller rolls across the electrode surface to correct the edge alignment, effectively preventing electrode misalignment before rolling and significantly improving electrode production quality. A smoothing mechanism initially smooths wrinkles on the electrode before correction, ensuring stable operation. Combined with springs, the bending plate adapts to electrode thicknesses, enhancing the device's practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;

[0019] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0021] In the diagram: 1-Traction roller, 2-Driven roller, 3-Correction mechanism, 31-Push rod, 32-Connecting plate, 33-Correction plate, 34-Roller, 35-Rotating shaft, 4-Lower pressure roller, 5-Smoothing mechanism, 51-Guide rod, 52-Busset, 53-Bending plate, 54-Elastic element, 6-Take-up roller, 7-Support seat, 8-Motor, 9-Clamping plate, 10-Base, 11-First gantry, 12-Second gantry, 13-Upper pressure roller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Please see Figure 1-4 In this embodiment, an electrode rolling correction device includes a traction roller 1, a driven roller 2 located at the front end of the traction roller 1, and an edge correction mechanism 3 symmetrically located at both ends of the driven roller 2. The edge correction mechanism 3 includes a push rod 31, a connecting plate 32 fixed to one end of the push rod 31, a correction plate 33 connected to the connecting plate 32, and a roller 34. The correction plate 33 is parallel to the driven roller 2, the roller 34 is located above the correction plate 33, and the roller 34 is rotatably connected to the connecting plate 32 via a rotating shaft 35. By pushing the connecting plate 32 closer together with the push rod 31, the two sides of the electrode enter the gap between the roller 34 and the correction plate 33. The electrode moves forward under the drive of the traction roller 1, and the friction between the electrode and the roller 34 drives the roller 34 to roll. The rolling of the roller 34 realizes the edge correction of the electrode, effectively preventing the electrode from shifting before rolling and significantly improving the electrode production quality.

[0025] Furthermore, there are two correction plates 33, symmetrically arranged directly below the roller 34. The two correction plates 33 on each side can more stably support the electrode sheet, preventing uneven force on the electrode sheet from causing tilting or shaking. In addition, the synergistic effect of the two correction plates 22 and the roller 34 can better achieve correction.

[0026] Furthermore, the device also includes a smoothing mechanism 5; the smoothing mechanism 5 includes a guide rod 51 positioned above and parallel to the traction roller 1, a bushing 52 slidably connected to the guide rod 51, and a bending plate 53 connected to the bushing 52; the extended end of the bending plate 53 is parallel to the traction roller 1. The displacement of the bushing 52 on the guide rod 51 can be adjusted according to the width of the electrode sheet, and a small gap is formed between the bending plate 53 and the traction roller 1 for the electrode sheet to pass through. Under the action of the bending plate 53, the electrode sheet is initially smoothed to prevent wrinkling and to initially correct the path of the electrode sheet, so that the electrode sheet is in a relatively flat and stable state before edge correction, which helps to improve the accuracy and effect of correction.

[0027] Furthermore, the smoothing mechanism 5 also includes an elastic element 54 connecting one end of the bending plate 53 to the bushing 52, and the other end of the bending plate 53 is movably connected to the outer periphery of the bushing 52. The elastic element 54 is a spring, which gives the extended end of the bending plate 53 a certain elasticity, which can adapt to electrode sheets of different thicknesses and improve the practicality of the device.

[0028] Furthermore, the bushing 52 and the guide rod 51 are connected with a clearance fit. The bushing 52 hangs naturally under the gravity of the bending plate 53, ensuring that the bending plate 53 is horizontal.

[0029] Furthermore, this device also includes a take-up roller 6 located at the front end of the traction roller 1. The take-up roller 6 has support seats 7 at both ends, a motor 8 for driving the take-up roller 6 to rotate, and a clamping plate 9 parallel to the take-up roller 6; the end of the clamping plate 9 is fixed to the inner side of the support seat 7. Driven by the motor 8, the take-up roller 6 rotates, winding up the electrode sheet that has undergone roll forming, facilitating subsequent processing and storage.

[0030] Furthermore, the device also includes a base 10, a first gantry 11 and a second gantry 12 mounted on the base 10; the driven roller 2 is connected to the first gantry 11 at its end, and the traction roller 1 and the guide rod 51 are connected to the second gantry 12 at both ends; the push rod 31 is disposed through the side plate of the first gantry 11 at its end.

[0031] In other embodiments, the first gantry 11 and the second gantry 12 can be an integrated design, requiring only that the gantry can fix components such as the traction roller 1, the driven roller 2, and the guide rod 51.

[0032] Furthermore, the device also includes an upper pressure roller 13 and a lower pressure roller 4 disposed between the traction roller 1 and the winding roller 6. The coated electrode sheet is rolled under the action of the upper pressure roller 13 and the lower pressure roller 4 to achieve the required compaction density, and then wound up.

[0033] Furthermore, a slit is formed between the upper pressure roller 13 and the lower pressure roller 4 to allow the electrode sheet to pass through. The height of the slit is the same as the height of the correction plate 33, ensuring that the electrode sheet can smoothly and accurately enter the roller pressing slit after correction, and avoiding the electrode sheet from shifting or getting stuck during roller pressing due to height mismatch.

[0034] In operation, the electrode sheet moves towards the driven roller 2 under the action of the traction roller 1. The smoothing mechanism 5 above the traction roller 1 initially smooths the moving electrode sheet. When the electrode sheet moves onto the driven roller 2, the push rods 31 on both sides push the connecting plate 32 towards the middle, causing the electrode sheet to enter the slit between the correction plate 33 and the roller 34. The friction of the roller 34 locks the direction of movement of the electrode sheet and corrects it in real time. After correction, the electrode sheet enters the space between the upper pressure roller 13 and the lower pressure roller 4 for rolling, making the coating on the surface of the electrode sheet denser. The rolled electrode sheet is then wound up under the action of the winding roller 6, facilitating subsequent processing. After the electrode sheet has been wound up, the electric push rod needs to be retracted to facilitate the introduction of the next electrode sheet and the adjustment of its initial position.

[0035] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0036] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. An electrode roll pressing and correction device, comprising a traction roller (1) and a driven roller (2) disposed at the front end of the traction roller (1), characterized in that, It also includes a side-correcting mechanism (3) symmetrically arranged at both ends of the driven roller (2); the side-correcting mechanism (3) includes a push rod (31), a connecting plate (32) fixed at one end of the push rod (31), a correction plate (33) connected to the connecting plate (32) and a roller (34); wherein the correction plate (33) is parallel to the driven roller (2), the roller (34) is located above the correction plate (33), and the roller (34) is rotatably connected to the connecting plate (32) through a rotating shaft (35).

2. The electrode roll pressing and correction device according to claim 1, characterized in that, It also includes a smoothing mechanism (5); the smoothing mechanism (5) includes a guide rod (51) disposed above and parallel to the traction roller (1), a bushing (52) slidably connected to the guide rod (51), and a bending plate (53) connected to the bushing (52); the extended end of the bending plate (53) is parallel to the traction roller (1).

3. The electrode roll pressing and correction device according to claim 2, characterized in that, The smoothing mechanism (5) also includes an elastic element (54) connecting the extended end of the bent plate (53) and the bushing (52).

4. The electrode roll pressing and correction device according to claim 2, characterized in that, The bushing (52) and the guide rod (51) are connected by a clearance fit.

5. The electrode roll pressing and correction device according to claim 1, characterized in that, It also includes a take-up roller (6) located at the front end of the traction roller (1).

6. The electrode roll pressing and correction device according to claim 5, characterized in that, It also includes support seats (7) at both ends of the take-up roller (6), a motor (8) for driving the take-up roller (6) to rotate, and a clamping plate (9) parallel to the take-up roller (6); the end of the clamping plate (9) is fixed inside the support seat (7).

7. The electrode roll pressing and correction device according to claim 2, characterized in that, It also includes a base (10), a first gantry (11) and a second gantry (12) mounted on the base (10); the end of the driven roller (2) is connected to the first gantry (11), and the two ends of the traction roller (1) and the guide rod (51) are connected to the second gantry (12); the end of the push rod (31) is set through the side plate of the first gantry (11).

8. The electrode roll pressing and correction device according to claim 5, characterized in that, It also includes an upper pressure roller (13) and a lower pressure roller (4) located between the traction roller (1) and the winding roller (6).

9. The electrode roll pressing and correction device according to claim 8, characterized in that, A slit is formed between the upper pressure roller (13) and the lower pressure roller (4) for the electrode sheet to pass through, and the height of the slit is the same as the height of the correction plate (33).

10. The electrode roll pressing and correction device according to claim 1, characterized in that, The number of the correction plates (33) is two.

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