A dust removal device for pole piece cutting

Abstract

The utility model discloses a dust collector for pole piece cutting, including the ultrasonic generator of being located pole piece at least one side, be located the sliding table of ultrasonic generator bottom, wherein, the sliding table includes support platform, drive mechanism that drive ultrasonic generator carries out horizontal direction removal, the utility model discloses through the non -contact dust removal of ultrasonic generator to pole piece, solve the problem of pole piece damage in the prior art of brush dust removal, and through the position of ultrasonic generator is adjusted to the sliding table, to ensure that it can accurately aim at pole piece surface to reach the best dust removal effect.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery electrode production, and in particular to a dust removal device for electrode cutting. Background Technology

[0002] In the research, development, trial production, and manufacturing of square lithium batteries, electrode cutting is an essential step. Common laser cutting methods generate dust. If this dust adheres to the rolled material and enters subsequent processes, or even gets caught inside the battery, it may puncture the separator paper inside the cell, causing a micro-short circuit or even a battery explosion—serious safety hazards. Currently, most dust removal devices used after laser-cut electrodes are brush-type. These devices come into contact with the electrodes during dust removal, potentially causing some wear on the electrode surface. Furthermore, the distance between the device and the electrode needs precise control: too close, and the electrode may be damaged; too far, dust residue may remain. In addition, the dust adhering to the brush needs to be cleaned regularly; otherwise, the dust removal effect will significantly decrease, increasing labor costs. To address the dust removal needs after laser cutting, there is an urgent need to develop more efficient and non-contact dust removal technology to reduce wear on the electrodes and cleaning and maintenance costs, thereby improving the safety and efficiency of the production process. Therefore, providing an efficient and low-cost improved design or technical solution for laser-cut dust removal is the research direction of this utility model. Utility Model Content

[0003] The purpose of this invention is to provide a dust removal device for electrode cutting. It achieves non-contact dust removal of the electrode through an ultrasonic generator, solving the problem of electrode damage caused by brush dust removal in the prior art. Furthermore, the position of the ultrasonic generator can be adjusted by a sliding table to ensure that it can be accurately aligned with the electrode surface, thereby achieving the best dust removal effect.

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

[0005] This utility model discloses a dust removal device for electrode cutting, including an ultrasonic generator disposed on at least one side of the electrode and a slide table disposed at the bottom of the ultrasonic generator; wherein, the slide table includes a support platform and a drive mechanism for driving the ultrasonic generator to move horizontally.

[0006] A further embodiment: The support platform includes an upper platform and a lower platform that are slidably connected; the drive mechanism includes a lateral adjustment bolt connected to the upper platform and a near-far adjustment bolt connected to the lower platform; wherein, the lateral adjustment bolt is parallel to the electrode plate, and the near-far adjustment bolt is perpendicular to the electrode plate.

[0007] A further embodiment includes a guide roller for transporting the electrode sheet; the guide roller includes an upper roller located above the ultrasonic generator and a lower roller located below the slide table.

[0008] A further embodiment includes bonding rollers located on both sides of the electrode sheet; the bonding rollers are located between the upper roller and the lower roller.

[0009] A further embodiment: The ultrasonic generator includes an ultrasonic cavity and negative pressure cavities located on both sides of the ultrasonic cavity and communicating with it; the ultrasonic cavity is provided with a positive pressure pipe interface, and the negative pressure cavity is connected to a negative pressure pipe interface.

[0010] A further solution includes a distance sensor for detecting the distance between the ultrasonic generator and the electrode.

[0011] A further embodiment: The number of ultrasonic generators is two, respectively located on both sides of the electrode; the two ultrasonic generators are arranged in a staggered manner, one above the other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention achieves non-contact dust removal by placing ultrasonic generators on both sides of the electrode sheet, preventing wear or damage to the electrode surface and effectively avoiding problems such as electrode damage and peeling caused by dust removal operations. The relative position of the ultrasonic generator and the electrode sheet can be flexibly adjusted via a sliding table to ensure precise alignment with the electrode surface, thereby achieving optimal dust removal results. The contact rollers prevent the electrode sheet from rubbing against the dust removal head due to vibration, further ensuring the integrity and performance of the electrode sheet.

[0014] Ultrasonic generators are characterized by low energy consumption and require almost no maintenance. The main maintenance tasks include only checking the fan and replacing the filter element regularly. Compared with traditional brush dust removal devices, which require regular cleaning and replacement of the brushes, this greatly reduces maintenance and labor costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side sectional view of the present invention;

[0017] In the diagram: 1-Electrode, 2-Ultrasonic generator, 21-Positive pressure tube interface, 22-Negative pressure tube interface, 3-Slide table, 31-Support platform, 311-Upper platform, 312-Lower platform, 32-Drive mechanism, 321-Horizontal adjustment bolt, 322-Long distance adjustment bolt, 4-Guide roller, 41-Upper roller, 42-Lower roller, 5-Contact roller. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] Please see Figure 1-2 In this embodiment, a dust removal device for electrode cutting includes ultrasonic generators 2 disposed on both sides of the electrode 1 and a slide 3 disposed at the bottom of the ultrasonic generators 2. The slide 3 includes a support platform 31 and a drive mechanism 32 for driving the ultrasonic generators 2 to move horizontally. The ultrasonic generators 2 do not need to contact the electrode 1. By changing the distance and lateral displacement of the ultrasonic generators 2 relative to the electrode 1 through the slide 3, it is ensured that they can be accurately aligned with the electrode surface, thereby achieving the best dust removal effect.

[0021] Furthermore, the support platform 31 includes an upper platform 311 and a lower platform 312 that are slidably connected; the drive mechanism 32 includes a lateral adjustment bolt 321 connected to the upper platform 311 and a distance adjustment bolt 322 connected to the lower platform 312; wherein, the lateral adjustment bolt 321 is parallel to the electrode 1, and the distance adjustment bolt 322 is perpendicular to the electrode 1. The upper platform 311 has a corresponding threaded hole for accommodating the lateral adjustment bolt 321. When the lateral adjustment bolt 321 is rotated, the upper platform 311 can be driven, thereby driving the ultrasonic generator 2 to move left and right relative to the electrode 1; similarly, the lower platform 312 also has a corresponding threaded hole for accommodating the distance adjustment bolt 322. When the distance adjustment bolt 322 is rotated, the lower platform 312 can be driven, thereby driving the upper platform 311 and the ultrasonic generator 2 to adjust the distance relative to the electrode 1.

[0022] Furthermore, this device also includes a guide roller 4 for conveying the electrode sheet; the guide roller 4 includes an upper roller 41 located above the ultrasonic generator 2 and a lower roller 42 located below the slide table 3. The function of the guide roller 4 is to guide the electrode sheet 1 to move smoothly on the production line. After the electrode sheet 1 passes through the dust removal device from the upper roller 41, it connects with the lower roller 42, ensuring that the electrode sheet 1 does not deviate during the entire dust removal process and can pass smoothly. By adjusting the rotation speed of the guide roller 4, the speed at which the electrode sheet 1 passes through the dust removal device can be controlled, and more precise control further improves the dust removal effect.

[0023] Furthermore, the device also includes bonding rollers 5 disposed on both sides of the electrode 1; the bonding rollers 5 are located between the upper roller 41 and the lower roller 42. The function of the bonding rollers 5 is to prevent the electrode 1 from rubbing against the ultrasonic generator 2 due to shaking or vibration during the dust removal process. By closely bonding to the surface of the electrode 1, they provide additional support and cushioning, ensuring that the electrode 1 remains stable during the dust removal process.

[0024] Furthermore, the ultrasonic generator 2 includes an ultrasonic cavity and negative pressure cavities located on both sides of the ultrasonic cavity and communicating with it; the ultrasonic cavity is provided with a positive pressure pipe interface 21, and the negative pressure cavities are connected to a negative pressure pipe interface 22. Both the positive pressure pipe interface 21 and the negative pressure pipe interface 22 adopt a side-outlet pipe method to avoid dust accumulation in the inner cavity of the generator.

[0025] Furthermore, the device also includes a distance sensor for detecting the distance between the ultrasonic generator 2 and the electrode 1. When the electrode 1 vibrates abnormally or deviates from its normal position, the dust removal device can be stopped in time to avoid damage to the electrode 1.

[0026] Furthermore, there are two ultrasonic generators 2, which are respectively located on both sides of the electrode 1; the two ultrasonic generators 2 are staggered in the upper and lower positions to avoid mutual interference between the ultrasonic waves on both sides.

[0027] In operation, the ultrasonic generator 2 converts electrical signals into mechanical vibrations, generating ultrasonic waves. These ultrasonic waves create pressure waves that cause periodic expansion and collapse of bubbles in the medium. The resulting shock waves effectively remove dust, dirt, or impurities adhering to the surface of the electrode 1 without contaminating or damaging the material surface. Compared to traditional non-contact air knife dust removal technology, laser dust removal can effectively remove fine dust particles with a diameter of less than 6μm, significantly improving dust removal efficiency.

[0028] 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.

[0029] 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. A dust removal device for electrode cutting, characterized in that, It includes an ultrasonic generator (2) disposed on at least one side of the electrode (1) and a slide (3) disposed at the bottom of the ultrasonic generator (2); wherein the slide (3) includes a support platform (31) and a drive mechanism (32) for driving the ultrasonic generator (2) to move horizontally.

2. The dust removal device for electrode cutting according to claim 1, characterized in that, The support platform (31) includes an upper platform (311) and a lower platform (312) that are slidably connected; the drive mechanism (32) includes a lateral adjustment bolt (321) connected to the upper platform (311) and a near-far adjustment bolt (322) connected to the lower platform (312); wherein the lateral adjustment bolt (321) is parallel to the electrode (1) and the near-far adjustment bolt (322) is perpendicular to the electrode (1).

3. The dust removal device for electrode cutting according to claim 1, characterized in that, It also includes a guide roller (4) for transporting the electrode sheet; the guide roller (4) includes an upper roller (41) located above the ultrasonic generator (2) and a lower roller (42) located below the slide table (3).

4. The dust removal device for electrode cutting according to claim 3, characterized in that, It also includes bonding rollers (5) disposed on both sides of the electrode (1); the bonding rollers (5) are disposed between the upper roller (41) and the lower roller (42).

5. The dust removal device for electrode cutting according to claim 1, characterized in that, The ultrasonic generator (2) includes an ultrasonic cavity and negative pressure cavities located on both sides of the ultrasonic cavity and connected thereto; the ultrasonic cavity is provided with a positive pressure pipe interface (21), and the negative pressure cavity is connected with a negative pressure pipe interface (22).

6. The dust removal device for electrode cutting according to claim 1, characterized in that, It also includes a distance sensor for detecting the distance between the ultrasonic generator (2) and the electrode (1).

7. The dust removal device for electrode cutting according to claim 1, characterized in that, There are two ultrasonic generators (2), which are respectively located on both sides of the electrode (1); the two ultrasonic generators (2) are arranged in an offset manner.

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