Battery pole piece magnetic powder adsorption mechanism

Abstract

The utility model discloses a kind of battery pole piece magnetic powder adsorption mechanism, including vertical plate, at least two rotating rollers are rotatably connected with the vertical plate side by bearing, the vertical plate side with the rotating roller is oppositely provided with two adsorption components, gap is left between two the adsorption components for pole piece to pass through, the adsorption component includes iron plate, accommodating groove is opened on the iron plate, separating strip for separating accommodating groove into two installation cavities is set in the accommodating groove, a plurality of magnets are respectively arranged in two installation cavities.Compared with prior art, the utility model separates accommodating groove into two independent installation cavities by separating strip, magnets in two cavities do not contact each other, step-by-step operation can be operated when cleaning, i.e. magnet cleaning in one installation cavity, magnet continues to work in another installation cavity, ensure the sustained adsorption of pole piece magnetic powder, avoid production process interruption due to magnet cleaning operation.

Description

Technical Field

[0001] This utility model relates to the field of battery electrode conveying technology, and in particular to a battery electrode magnetic powder adsorption mechanism. Background Technology

[0002] In the field of battery manufacturing, the surface cleanliness of electrodes, as the core carrier of energy storage and conversion, is a key indicator for ensuring battery cycle life, charge-discharge efficiency, and safety. Friction between the electrode and the equipment rollers during rolling, wear of cutting tools during slitting, and floating metal dust in the production environment all contribute to the adhesion of extremely fine magnetic powder to the electrode surface. These seemingly tiny particles can enter the battery cell during subsequent winding processes. After battery assembly, the magnetic powder may gradually pierce the separator separating the positive and negative electrodes under the electrochemical action of charging and discharging, causing internal short circuits. This can lead to a sudden drop in battery capacity and bulging, or even severe thermal runaway, and in severe cases, fires, explosions, and other accidents that endanger production safety. Therefore, the efficient removal of magnetic powder from the electrode surface is an indispensable and crucial step in the electrode production process.

[0003] Existing magnetic powder removal equipment for electrodes is mostly an integrated magnetic attraction mechanism. However, during use, the magnetic powder adsorbed on the surface of the magnet will gradually accumulate over time, requiring periodic shutdowns to disassemble the equipment for cleaning. This directly disrupts the continuous operation rhythm of the production line, not only wasting working hours but also potentially affecting the stability of electrode transmission due to frequent start-stop cycles, thereby reducing overall production efficiency.

[0004] To address these issues, we propose a magnetic powder adsorption mechanism for battery electrodes. Utility Model Content

[0005] The main purpose of this utility model is to provide a magnetic powder adsorption mechanism for battery electrodes. The receiving groove is divided into two independent installation cavities by a partition strip. The magnets in the two cavities do not contact each other. Cleaning can be carried out in steps, that is, while the magnet in one installation cavity is being cleaned, the magnet in the other installation cavity continues to work, ensuring continuous adsorption of magnetic powder on the electrode and avoiding interruption of the production process due to the cleaning of the magnets.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A magnetic powder adsorption mechanism for battery electrodes includes a vertical plate. At least two rotating rollers are rotatably connected to one side of the vertical plate via bearings. Two adsorption components are arranged opposite each other on the side of the vertical plate with the rotating rollers. A gap is left between the two adsorption components to allow the electrode to pass through. Each adsorption component includes an iron plate with a receiving groove. A dividing strip is provided in the receiving groove to divide the receiving groove into two mounting cavities. Several magnets are respectively arranged in the two mounting cavities.

[0007] Furthermore, the iron plate has an opening at the end away from the upright plate.

[0008] Furthermore, several of the magnets are glued together at their ends with partitions.

[0009] Furthermore, the iron plate is fixedly connected to the upright plate via a connecting device.

[0010] Furthermore, the connecting device includes a connecting plate and a threaded hole on the upright plate. The connecting plate is fixedly connected to the iron plate. The connecting plate has an oblong hole, and a bolt is inserted into the oblong hole with one end of the bolt threaded into the threaded hole.

[0011] Furthermore, a washer is fitted onto the end of the bolt.

[0012] Furthermore, a limit post is fixed to the side of the connecting plate that contacts the upright plate, and a limit groove is formed on the upright plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a separator to divide the receiving groove into two independent mounting cavities. The magnets in the two cavities do not come into contact with each other, and cleaning can be carried out in steps. That is, while the magnet in one mounting cavity is being cleaned, the magnet in the other mounting cavity continues to work, ensuring the continuous adsorption of magnetic powder on the electrode sheet and avoiding interruption of the production process due to the cleaning of the magnets.

[0014] The waist-shaped hole design of the connecting device of this utility model allows for adjustment of the height of the connecting plate, thereby flexibly adjusting the distance between the magnet and the electrode to ensure that the adsorption force meets the requirements; at the same time, the limiting post and the limiting groove cooperate to ensure that the iron plate and the magnet are set horizontally, further ensuring the adsorption stability.

[0015] The partition plate at the end of the magnet in this invention reduces the attraction between adjacent magnets. Combined with the opening design at the end of the iron plate, it makes it easy for personnel to quickly remove the magnets and clean the magnetic powder on the surface, reducing the difficulty and time cost of cleaning operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a magnetic powder adsorption mechanism for battery electrodes according to this utility model.

[0017] Figure 2 This is a schematic diagram of the adsorption component and connecting device of a battery electrode magnetic powder adsorption mechanism according to the present invention.

[0018] Figure 3 This is a cross-sectional structural diagram of the connecting device and the upright plate of the magnetic powder adsorption mechanism for battery electrodes according to this utility model.

[0019] In the diagram: 1. Vertical plate; 2. Adsorption assembly; 201. Iron plate; 202. Receiving groove; 203. Opening; 204. Magnet; 205. Partition; 206. Separator strip; 3. Connecting device; 301. Connecting plate; 302. Waist-shaped hole; 303. Bolt; 304. Gasket; 305. Threaded hole; 306. Limiting groove; 307. Limiting post; 4. Rotating roller. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figure 1-3As shown, a battery electrode magnetic powder adsorption mechanism includes a vertical plate 1. At least two rotating rollers 4 are rotatably connected to one side of the vertical plate 1 via bearings. Two adsorption components 2 are arranged opposite each other on the side of the vertical plate 1 with rotating rollers 4. A gap is left between the two adsorption components 2 for the electrode to pass through. The adsorption component 2 includes an iron plate 201. A receiving groove 202 is opened on the iron plate 201. A dividing strip 206 is provided in the receiving groove 202 to divide the receiving groove 202 into two mounting cavities. A plurality of magnets 204 are respectively arranged in the two mounting cavities.

[0025] In this embodiment, such as Figure 1 and Figure 2 As shown, several magnets 204 will attract the iron plate 201, thereby fixing the magnets 204 in the receiving groove 202. The two rotating rollers 4 are horizontally set. When the electrode is transported by the rotating rollers 4, the two adsorption components 2 will be located above and below the electrode respectively, so that the magnets 204 of the two adsorption components 2 can attract the magnetic powder adhering to the electrode. This avoids the magnetic powder from piercing the diaphragm during subsequent winding, packaging or charging and discharging processes, causing direct contact between the positive and negative electrodes and causing an internal short circuit.

[0026] The separator 206 divides the receiving groove 202 into two mounting cavities. The magnets 204 in the two mounting cavities do not contact each other. Therefore, when cleaning the magnetic powder on the surface of the magnet 204, the magnet 204 in one mounting cavity can be removed for cleaning first. At this time, the magnet 204 in the other mounting cavity continues to work to attract the magnetic powder on the electrode. After the magnet 204 is cleaned, it is installed back into the corresponding mounting cavity. Then the magnet 204 in the other mounting cavity is removed for cleaning. After cleaning, it is installed back into the mounting cavity. Therefore, this adsorption mechanism can clean the magnet 204 in steps, so that the adsorption mechanism can continuously attract the magnetic powder on the electrode.

[0027] Among them, such as Figure 2 As shown, the iron plate 201 has an opening 203 at the end away from the vertical plate 1, and several magnets 204 are glued to the ends with partitions 205. When it is necessary to remove the magnets 204 from the installation cavity, the personnel can manually apply force to the partitions 205, so that the magnets 204 can be moved out through the openings through the partitions 205. Furthermore, the partitions 205 are made of PVC material, which can reduce the attraction between adjacent magnets 204, thereby making it easier for personnel to remove the magnets 204 from the installation cavity.

[0028] Among them, such as Figure 2 and Figure 3As shown, the iron plate 201 is fixedly connected to the upright plate 1 through the connecting device 3. The connecting device 3 includes a connecting plate 301 and a threaded hole 305 opened on the upright plate 1. The connecting plate 301 is fixedly connected to the iron plate 201. The connecting plate 301 has a waist-shaped hole 302. A bolt 303 is inserted into the waist-shaped hole 302, and one end of the bolt 303 is threaded into the threaded hole 305. The diameter of the clamped part of the bolt 303 is larger than the width of the waist-shaped hole 302. Therefore, the bolt 303 cannot pass through the waist-shaped hole 302. So when the bolt 303 is screwed into the threaded hole 305, the clamped part of the bolt 303 can be used to fix the connecting plate 301 to the upright plate 1. Before the bolt 303 is tightened, the connecting plate 301 can move relative to the bolt 303 through the waist-shaped hole 302. Therefore, the installation height of the connecting plate 301 can be adjusted, thereby adjusting the distance between the magnet 204 and the pole piece, thereby ensuring that the magnet 204 can attract the magnetic powder on the pole piece.

[0029] Among them, such as Figure 3 As shown, the angle between the connecting plate 301 and the iron plate 201 is 90 degrees. The side of the connecting plate 301 that contacts the vertical plate 1 is fixed with a limiting post 307. A limiting groove 306 is opened on the vertical plate 1. After the limiting post 307 is located in the limiting groove 306, the limiting groove 306 can limit the limiting post 307, so that the limiting post 307 can only make linear movements of lifting and lowering. With the cooperation of bolt 303 and threaded hole 305, it can be ensured that the connecting plate 301 is installed vertically, thereby making the iron plate 201 and magnet 204 set horizontally.

[0030] Among them, such as Figure 2 and Figure 3 As shown, a washer 304 is fitted at the end of the bolt 303. The washer 304 has a larger contact area with the connecting plate 301, which can further improve the fixing stability of the connecting plate 301 after the bolt 303 is tightened.

[0031] Working principle: The upright plate 1 is installed on the conveying path of the electrode sheet, and the electrode sheet passes through the gap between the two adsorption components 2 under the action of the rotating roller 4. At this time, the magnets 204 in the upper and lower adsorption components 2 can adsorb the magnetic powder adhering to the electrode sheet. The adsorption assembly 2 is fixedly connected to the upright plate 1 via the connecting device 3. The connecting plate 301 of the connecting device 3 has a slotted hole 302. A bolt 303 passes through the slotted hole 302 and is threaded into the threaded hole 305 of the upright plate 1. When the bolt 303 is not tightened, the connecting plate 301 can move relative to the bolt 303 through the slotted hole 302, thereby adjusting the installation height of the connecting plate 301 and consequently adjusting the distance between the magnet 204 and the electrode plate to ensure the magnet 204's adsorption effect on the magnetic powder on the electrode plate. Simultaneously, a limiting post 307 fixed to the side of the connecting plate 301 in contact with the upright plate 1 is located within a limiting groove 306 on the upright plate 1. The limiting groove 306 limits the limiting post 307, ensuring that the limiting post 307 can only move in a linear motion. Combined with the bolt 303 and the threaded hole 305, this ensures that the connecting plate 301 is installed vertically, thereby ensuring that the iron plate 201 and the magnet 204 are set horizontally.

[0032] Furthermore, the iron plate 201 has an opening 203 at the end away from the vertical plate 1, and several magnets 204 have PVC partitions 205 glued to their ends. When it is necessary to clean the magnetic powder on the surface of the magnets 204, the magnets 204 can be removed from the opening 203 through the partitions 205. Since the partitions 205 can reduce the attraction force between adjacent magnets 204, it is convenient for personnel to remove the magnets 204. And since the magnets 204 in the two mounting cavities do not contact each other, the magnets 204 can be cleaned in steps. That is, the magnets 204 in one mounting cavity can be removed and cleaned first, while the magnets 204 in the other mounting cavity continue to work. After cleaning is completed and the magnets are reinstalled, the magnets 204 in the other mounting cavity can be cleaned. This ensures that the adsorption mechanism can continuously adsorb the magnetic powder on the pole pieces.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A magnetic powder adsorption mechanism for battery electrodes, comprising a vertical plate (1), wherein at least two rotating rollers (4) are rotatably connected to one side of the vertical plate (1) via bearings, characterized in that: Two adsorption components (2) are arranged opposite each other on the side of the vertical plate (1) with the rotating roller (4). A gap is left between the two adsorption components (2) for the electrode to pass through. The adsorption component (2) includes an iron plate (201). A receiving groove (202) is opened on the iron plate (201). A dividing strip (206) is provided in the receiving groove (202) to divide the receiving groove (202) into two mounting cavities. Several magnets (204) are respectively provided in the two mounting cavities.

2. The battery electrode magnetic powder adsorption mechanism according to claim 1, characterized in that: The iron plate (201) has an opening (203) at the end away from the vertical plate (1).

3. The battery electrode magnetic powder adsorption mechanism according to claim 1, characterized in that: A partition (205) is glued to the ends of several of the magnets (204).

4. A battery electrode magnetic powder adsorption mechanism according to any one of claims 1-3, characterized in that: The iron plate (201) is fixedly connected to the upright plate (1) through the connecting device (3).

5. The battery electrode magnetic powder adsorption mechanism according to claim 4, characterized in that: The connecting device (3) includes a connecting plate (301) and a threaded hole (305) opened on the upright plate (1). The connecting plate (301) is fixedly connected to the iron plate (201). A waist-shaped hole (302) is opened on the connecting plate (301). A bolt (303) is inserted into the waist-shaped hole (302) and one end of the bolt (303) is threaded into the threaded hole (305).

6. The battery electrode magnetic powder adsorption mechanism according to claim 5, characterized in that: A washer (304) is fitted onto the end of the bolt (303).

7. The battery electrode magnetic powder adsorption mechanism according to claim 5, characterized in that: The connecting plate (301) is fixed with a limit post (307) on the side of the contact plate (1), and a limit groove (306) is provided on the plate (1).

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