Pole piece brush dust removal mechanism

Abstract

The utility model relates to the technical field of pole piece processing equipment, especially to a pole piece brush dust removal mechanism, two dust removal units are spliced through opposite movement on the slide rail, the dust removal unit includes dust cover with half-enclosing design, two dust covers form a closed type sealed dustproof cavity that completely covers the pole piece, can flexibly adapt to pole pieces of different widths, can also completely restrain the dust generated in the brush sweeping process in the closed space, avoids the secondary pollution problem caused by dust diffusion, significantly improves the dust removal effect and the cleanliness of the production environment, in addition, the dust removal unit includes a driving motor and a brush, the brush is supported on the dust cover through the bearing structure at both ends, and reliable transmission is realized through the shaft coupling and the driving motor, the brush high-speed rotation carries out dust removal to the pole piece surface.

Description

Technical Field

[0001] This utility model relates to the technical field of electrode processing equipment, and in particular to an electrode brush dust removal mechanism. Background Technology

[0002] Dust is generated after the lithium-ion battery electrode sheets are cut. If it is not thoroughly cleaned, the residual dust can cause micro-short circuits in the battery cell, leading to serious safety problems such as excessive self-discharge, capacity decay, or even thermal runaway, and significantly reducing the consistency of battery performance.

[0003] Currently, high-pressure air blowing or vacuum adsorption are the mainstream methods for dust removal. High-pressure air blowing easily disperses dust, causing secondary pollution and consuming a lot of energy; vacuum adsorption has the drawbacks of easy nozzle clogging, frequent maintenance, and poor removal effect on highly adhesive fine dust. In addition, the existing mechanism has a fixed structure, which makes it difficult to flexibly adapt to electrode sheets of different widths, thicknesses or materials, and the adjustment is cumbersome when changing production lines, resulting in poor versatility. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a dust removal mechanism for electrode brushes.

[0005] The present invention adopts the following technical solution:

[0006] A dust removal mechanism for electrode sheets includes a slide rail and two symmetrically arranged dust removal units, which are slidably mounted on the slide rail. Each dust removal unit includes a base plate slidably connected to the slide rail, a drive motor fixed to the base plate, a brush connected to the output shaft of the drive motor, and a dust cover covering the outside of the brush. The drive motor drives the brush to rotate around its own axis to clean the surface of the electrode sheet. The opposing sidewalls of the two dust covers are provided with mating openings. When the two dust removal units move towards each other to be joined together, the two mating openings are aligned, so that the two dust covers together form a sealed dustproof cavity.

[0007] Preferably, it further includes two drive devices respectively fixed to both ends of the slide rail, the telescopic ends of the drive devices being connected to the base plate; the two drive devices are used to drive the two dust removal units to move towards or away from each other along the slide rail.

[0008] Preferably, the bottom of the base plate is fixedly provided with a slider that is slidably connected to the slide rail.

[0009] Preferably, the brush includes a brush shaft and bristles fixedly covering the outer peripheral wall of the brush shaft.

[0010] Preferably, the front and rear walls of the dust cover are respectively provided with a first bearing and a second bearing; the first bearing is provided with a rotating assembly, and the second bearing is provided with a drive shaft; one end of the brush shaft is connected to the rotating assembly, the other end of the brush shaft is connected to the drive shaft, and the end of the drive shaft away from the brush shaft is connected to the output shaft of the drive motor via a coupling.

[0011] Preferably, each of the two dust covers has a U-shaped notch on its opposite surface; when the two dust removal units move toward each other to be spliced ​​together, the two U-shaped notches align to form a feed inlet that communicates with the sealed dustproof cavity; the feed inlet allows the electrode sheet to pass through.

[0012] Preferably, the opposite side edges of the two base plates form a discharge port for the electrode sheet to be discharged after splicing.

[0013] Preferably, the base plate has a dust collection hole, and the dust removal unit further includes a collection pipe fixed below the base plate, the collection pipe being connected to the dust collection hole.

[0014] Preferably, the recycling pipeline includes a main recycling pipe and a guide pipe disposed above the main recycling pipe. The upper end of the guide pipe is connected to the dust recycling hole, and the lower end of the guide pipe is connected to the main recycling pipe. The side wall of the guide pipe is an inclined surface.

[0015] Preferably, the base plate is provided with a motor mounting bracket, and the drive motor is fixed to the base plate through the motor mounting bracket.

[0016] The beneficial effects of this utility model are as follows: The electrode brush dust removal mechanism of this utility model consists of two dust removal units that move towards each other on a slide rail. Each dust removal unit includes a dust cover with a semi-enclosed design. The two dust covers form a closed, sealed dustproof chamber that completely covers the electrode. This design can flexibly adapt to electrode widths and completely confine the dust generated during brush cleaning within the sealed space, preventing secondary pollution caused by dust escape and significantly improving dust removal efficiency and the cleanliness of the production environment. In addition, the dust removal unit includes a drive motor and a brush. The brush is supported on the dust cover by bearings at both ends and reliably transmitted to the drive motor via a coupling. The high-speed rotation of the brush removes dust from the electrode surface. The dust removal unit also includes a recovery pipe at the bottom, which connects to a negative pressure system and the dust cover. The dust swept off by the brush is sucked into the recovery system for centralized processing. The overall mechanism has a compact layout, with high integration of components such as the drive motor, brush, bearings, and recovery pipe, resulting in good space utilization and contributing to the internal structural layout of the electrode processing device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the electrode brush dust removal mechanism of this utility model; Figure 2 This is a schematic diagram of the electrode brush dust removal mechanism of this utility model from another angle; Figure 3 This is a top view of the electrode brush dust removal mechanism of this utility model; Figure 4 for Figure 3 Sectional view along AA; Figure 5 for Figure 3 A cross-sectional view along BB.

[0018] Numbering on the map: 10-Slide rail; 20 - Dust removal unit; 21-Base plate; 211-Slider; 212-Dust collection hole; 22-Drive motor; 23-Brush; 231-Brush shaft; 232-Brush bristles; 233-Rotating assembly; 234-Drive shaft; 24-Dust cover; 241-Docking opening; 242-U-shaped notch; 243-Feed inlet; 244-Discharge outlet; 25-Sealed dustproof chamber; 26-Recycling pipeline; 261-Main recycling pipe; 262-Guide pipe; 27-Motor mounting base; 30 - Drive unit. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figures 1 to 5 As shown, the electrode brush dust removal mechanism of this utility model includes a slide rail 10 and two symmetrically arranged dust removal units 20, which are slidably mounted on the slide rail 10. Each dust removal unit 20 includes a base plate 21 slidably connected to the slide rail 10, a drive motor 22 fixed to the base plate 21, a brush 23 connected to the output shaft of the drive motor 22, and a dust cover 24 covering the outside of the brush 23. The drive motor 22 drives the brush 23 to rotate around its own axis to clean the surface of the electrode. The opposing sidewalls of the two dust covers 24 each have a mating opening 241. When the two dust removal units 20 move towards each other and are joined together, the two mating openings 241 engage, so that the two dust covers 24 together form a sealed dustproof cavity 25.

[0023] During operation, the two base plates 21 move towards each other along the slide rail 10 until the mating openings 241 of the two dust covers 24 align. At this point, the two dust covers 24 together form a sealed dustproof cavity 25, and the cleaning ranges of the two brushes 23 overlap. The electrode sheet enters vertically into the sealed dustproof cavity 25 and passes between the two brushes 23, which continuously rotate to clean the surface of the electrode sheet. The two dust removal units 20 move towards each other or away from each other along the slide rail 10. On the one hand, this allows the two dust covers 24 to be joined together to form a sealed dustproof cavity 25, effectively preventing secondary pollution caused by dust escape. On the other hand, it allows adjustment of the spacing between the two brushes 23 to accommodate electrode sheets of different thicknesses, improving adaptability.

[0024] Specifically, the aforementioned electrode brush dust removal mechanism also includes two drive devices 30 respectively fixed to both ends of the slide rail 10. The telescopic ends of the drive devices 30 are connected to the base plate 21. The two drive devices 30 are used to drive the two dust removal units 20 to move towards or away from each other along the slide rail 10. In this embodiment, the drive device 30 is a cylinder or an electric cylinder, which has a fast response speed. A slider 211 is fixed to the bottom of the base plate 21 and is slidably connected to the slide rail 10. The sliding cooperation between the slider 211 and the slide rail 10 ensures smooth sliding of the two dust removal units 20. At the same time, in this embodiment, two parallel slide rails 10 are provided to further ensure the smoothness of sliding of the dust removal units 20.

[0025] Specifically, the brush 23 includes a brush shaft 231 and brush bristles 232 fixedly covering the outer peripheral wall of the brush shaft 231. The front and rear walls of the dust cover 24 are respectively provided with a first bearing (not shown in the figure) and a second bearing (not shown in the figure); the first bearing houses a rotating assembly 233, and the second bearing houses a transmission shaft 234; one end of the brush shaft 231 is connected to the rotating assembly 233, and the other end of the brush shaft 231 is connected to the transmission shaft 234. The end of the transmission shaft 234 away from the brush shaft 231 is connected to the output shaft of the drive motor 22 via a coupling. This connection structure effectively supports the brush 23 within the dust cover 24, employing a transmission path of "drive motor 22 - coupling - transmission shaft 234 - brush shaft 231 - rotating assembly 233," effectively achieving reliable transmission of the brush 23 while simultaneously isolating the internal structure of the dust cover 24 from the outside, effectively achieving a sealed dustproof environment.

[0026] Specifically, each of the two dust covers 24 has a U-shaped notch 242 on its opposite surface. When the two dust removal units 20 move towards each other and are joined together, the two U-shaped notches 242 align to form an inlet 243 that communicates with the sealed dustproof chamber 25. The inlet 243 is used for the electrode sheets to pass through. At the same time, the opposite side edges of the two base plates 21, through dimensional control, can form an outlet 244 for the electrode sheets to be discharged after being joined together. When the electrode sheets are being dusted, they move vertically through the inlet 243 and the outlet 244 in sequence, effectively completing the dust removal process, and the movement path is reasonably designed.

[0027] Specifically, the base plate 21 has a dust collection hole 212, and the dust removal unit 20 also includes a collection pipe 26 fixed below the base plate 21, which is connected to the dust collection hole 212. This structure utilizes the principle of negative pressure dust collection, allowing the dust brushed off to be quickly sucked in through the dust collection hole 212 and discharged along the collection pipe 26, effectively preventing dust accumulation and secondary re-entrainment in the cavity, and maintaining continuous and efficient dust removal capabilities. Furthermore, the recycling pipeline 26 includes a main recycling pipe 261 and a guide pipe 262 located above the main recycling pipe 261. The upper end of the guide pipe 262 is connected to the dust collection hole 212, and the lower end of the guide pipe 262 is connected to the main recycling pipe 261. The side wall of the guide pipe 262 is inclined. The inclined design of the guide pipe 262 utilizes the principle of gravity flow, which significantly improves the guidance and flow of dust, ensuring that the dust can smoothly flow into the main recycling pipe 261 for centralized processing, fundamentally avoiding blockage and retention at the interface.

[0028] Specifically, a motor mounting bracket 27 is provided on the base plate 21, and the drive motor 22 is fixed to the base plate 21 through the motor mounting bracket 27. By adding a dedicated mounting position, the rigidity and stability of the motor connection are significantly improved, the vibration and displacement generated during high-speed operation are effectively suppressed, the transmission accuracy is guaranteed, and the equipment life is extended.

[0029] Compared to existing technologies, the electrode brush dust removal mechanism of this utility model involves two dust removal units 20 that move towards each other on a slide rail 10. Each dust removal unit 20 includes a semi-enclosed dust cover 24, and the two dust covers 24 form a closed, sealed dustproof cavity 25 that completely covers the electrode. This not only flexibly adapts to electrode widths but also completely confines the dust generated during the brush 23's cleaning process within the sealed space, preventing secondary pollution caused by dust escape and significantly improving the dust removal effect and the cleanliness of the production environment. In addition, the dust removal unit 20 includes a drive motor 2 The dust removal unit 20 includes a brush 23, which is supported on the dust cover 24 by bearings at both ends and reliably transmitted to the drive motor 22 via a coupling. The brush 23 rotates at high speed to remove dust from the electrode surface. The dust removal unit 20 also includes a recovery pipe at the bottom, which connects to the negative pressure system and the dust cover 24. The dust swept off by the brush 23 is sucked into the recovery system and centrally processed. The overall structure is compact, with high integration of components such as the drive motor 22, brush 23, bearings, and recovery pipe 26, resulting in good space utilization and contributing to the internal structural layout of the electrode processing device.

[0030] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A dust removal mechanism using electrode brushes, characterized in that, The device includes a slide rail and two symmetrically arranged dust removal units, which are slidably mounted on the slide rail. Each dust removal unit includes a base plate slidably connected to the slide rail, a drive motor fixed to the base plate, a brush connected to the output shaft of the drive motor, and a dust cover covering the outside of the brush. The drive motor drives the brush to rotate around its own axis to clean the surface of the electrode sheet. The opposite sidewalls of the two dust covers are provided with mating openings. When the two dust removal units move towards each other to be joined together, the two mating openings are aligned, so that the two dust covers together form a sealed dustproof cavity.

2. The electrode brush dust removal mechanism according to claim 1, characterized in that, It also includes two drive devices fixed to both ends of the slide rail, with the telescopic ends of the drive devices connected to the base plate; the two drive devices are used to drive the two dust removal units to move towards or away from each other along the slide rail.

3. The electrode brush dust removal mechanism according to claim 1, characterized in that, The bottom of the base plate is fixedly provided with a slider that is slidably connected to the slide rail.

4. The electrode brush dust removal mechanism according to claim 1, characterized in that, The brush includes a brush shaft and bristles fixedly covering the outer peripheral wall of the brush shaft.

5. The electrode brush dust removal mechanism according to claim 4, characterized in that, The front and rear walls of the dust cover are respectively provided with a first bearing and a second bearing; the first bearing is provided with a rotating assembly, and the second bearing is provided with a drive shaft; one end of the brush shaft is connected to the rotating assembly, the other end of the brush shaft is connected to the drive shaft, and the end of the drive shaft away from the brush shaft is connected to the output shaft of the drive motor through a coupling.

6. The electrode brush dust removal mechanism according to claim 1, characterized in that, Both dust covers have U-shaped notches on their opposite surfaces; when the two dust removal units move toward each other to be joined together, the two U-shaped notches align to form a feed inlet that communicates with the sealed dustproof cavity; the feed inlet allows the electrode sheet to pass through.

7. The electrode brush dust removal mechanism according to claim 1, characterized in that, The opposite side edges of the two base plates, after being spliced ​​together, form a discharge port for the electrode sheets to be discharged.

8. The electrode brush dust removal mechanism according to claim 1, characterized in that, The base plate has a dust collection hole, and the dust removal unit also includes a collection pipe fixed below the base plate, which is connected to the dust collection hole.

9. The electrode brush dust removal mechanism according to claim 8, characterized in that, The recycling pipeline includes a main recycling pipe and a guide pipe located above the main recycling pipe. The upper end of the guide pipe is connected to the dust collection hole, and the lower end of the guide pipe is connected to the main recycling pipe. The side wall of the guide pipe is an inclined surface.

10. The electrode brush dust removal mechanism according to claim 1, characterized in that, The base plate is provided with a motor mounting bracket, and the drive motor is fixed to the base plate through the motor mounting bracket.

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