Battery pole piece profiling and dust removal device

Abstract

The application relates to a battery pole piece profiling dust removal device. The battery pole piece profiling dust removal device comprises a passing roller, a dust suction piece and an air knife. The dust suction piece is located on one side of the passing roller, the dust suction piece is provided with a dust suction port, and the dust suction port faces the passing roller. The air knife comprises a main body and an air nozzle, the main body is connected with the air nozzle, the main body has a curved surface, the curved surface is oppositely arranged with the side surface of the passing roller, the curved surface is provided with an air outlet, the air outlet spirally extends around the central axis of the passing roller, a blast channel is formed in the main body, the blast channel is connected with the air outlet, one end of the blast channel is communicated with the air nozzle, and the blast channel is inclined to the direction of the dust suction piece. The scheme provided by the application can blow all waste dust to the dust suction port, and the production environment of the equipment is prevented from being polluted by waste dust.

Description

Technical Field

[0001] This application relates to the field of battery production technology, and in particular to a battery electrode contour dust removal device. Background Technology

[0002] During the production of battery electrodes, the electrodes need to be cut into the shape of tabs. This cutting process generates dust, which easily adheres to the electrodes. Therefore, a dust removal device is needed to remove the dust from the electrodes.

[0003] In related technologies, dust removal devices typically include air knives and dust collection components. The air knife disperses the dust on the electrode, and the dust collection component then sucks up the scattered dust. However, in existing systems, after the air knife disperses the dust, the dust collection component can only suck up part of the dispersed dust, and some dust will scatter in the surrounding equipment. After the dust accumulates in the equipment for a long time, it can easily pollute the production environment of the equipment. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides a battery electrode contour dust removal device that can blow all waste dust toward the dust suction port, thereby avoiding waste dust pollution of the equipment's production environment.

[0005] This application provides a battery electrode contour dust removal device, which includes a roller, a dust collection component, and an air knife. The dust collection component is located on one side of the roller and has a dust collection port facing the roller. The air knife includes a main body and an air nozzle. The main body is connected to the air nozzle. The main body has a curved surface, which faces the side of the roller. The curved surface has an air outlet that spirals around the central axis of the roller. An air delivery channel is provided inside the main body and is connected to the air outlet. One end of the air delivery channel is connected to the air nozzle, and the air delivery channel is inclined toward the dust collection component.

[0006] Furthermore, the extending direction of the air outlet forms an angle A with the axial direction of the roller, and the angle A is 0~30°.

[0007] Furthermore, the shape of the curved surface matches the shape of the side of the roller facing the main body.

[0008] Furthermore, the length direction of the air supply channel is the same as the extension direction of the air outlet, and the width direction of the air supply channel is inclined towards the direction of the dust collection component.

[0009] Furthermore, the orientation of the dust suction port is the same as the axial direction of the roller.

[0010] Furthermore, the roller is provided with a belt-carrying area that contacts the electrode sheet, and the belt-carrying area is located between the dust suction port and the air outlet at the end away from the dust suction port.

[0011] Furthermore, the center of the dust suction port is on the central axis of the roller, and the diameter of the dust suction port is larger than the diameter of the roller.

[0012] Furthermore, the battery electrode contour dust removal device also includes a drive mechanism, which is connected to the air knife and drives the air knife to move toward or away from the roller.

[0013] Furthermore, the driving mechanism includes a guide rail, a slider, and a power component. The guide rail extends vertically, the slider is mounted on the guide rail, the main body is connected to the slider, and the power component is connected to the slider. The power component drives the slider to slide along the guide rail.

[0014] Furthermore, the battery electrode contour dust removal device also includes a filter, which is connected to the end of the air nozzle facing away from the main body.

[0015] The technical solution provided in this application may include the following beneficial results: by opening an air outlet on the curved surface, the air outlet extends spirally around the central axis of the roller, ensuring that the air outlet has sufficient length in the axial direction of the roller to blow air across the entire width of the electrode sheet, ensuring that the entire width of the electrode sheet can be dusted. Furthermore, due to the spiral extension of the central axis of the roller, the air supply channel can be tilted towards the dust collection component, and the gas blown out of the air outlet can blow all the waste dust towards the dust collection port, ensuring that the waste dust will not fall outside the battery electrode sheet conformal dust removal device, thus avoiding waste dust pollution of the equipment's production environment.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0018] Figure 1 This is a schematic diagram of the structure of the battery electrode contour dust removal device shown in the embodiments of this application; Figure 2 This is another structural schematic diagram of the battery electrode contour dust removal device shown in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the air knife shown in the embodiments of this application; Figure 4This is a cross-sectional view of the main body shown in the embodiments of this application; Figure 5 This is a perspective view of the main body shown in the embodiments of this application.

[0019] Reference numerals: 1. Overhead roller; 2. Dust suction component; 21. Dust suction port; 3. Air knife; 31. Main body; 311. Curved surface; 312. Air outlet; 313. Air supply channel; 314. Air nozzle; 32. Drive mechanism; 41. Guide rail; 42. Slider; 43. Power component; 5. Base; 6. Air supply assembly; 7. Electrode. Detailed Implementation

[0020] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0021] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In related technologies, dust removal devices typically include an air knife and a suction unit. The air knife disperses the dust on the electrode sheets, and the suction unit then removes the scattered dust. However, in existing systems, after the air knife disperses the dust, the suction unit can only remove a portion of it, leaving some dust scattered in surrounding equipment. Over time, this dust accumulation can easily contaminate the production environment. To address these issues, this application provides a battery electrode sheet contour-following dust removal device that directs all dust towards the suction port, preventing dust contamination of the production environment.

[0025] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0026] See Figure 1 and Figure 2 The battery electrode contouring dust removal device includes a guide roller 1, a dust collection component 2, and an air knife 3. The guide roller 1 guides the electrode 7 as it travels on the conveyor belt, allowing it to pass through the air knife 3. The dust collection component 2 is connected to the air knife 3 and is located on one side of the guide roller 1. The dust collection component 2 has a dust collection port 21 facing the guide roller 1. The dust collection component 2 can remove dust from the electrode 7. When the dust collection component 2 is working, under negative pressure, the dust on the electrode 7 passes through the dust collection port 21 and enters the dust collection component 2.

[0027] See Figure 2-5 The air knife 3 includes a main body 31 and an air nozzle 32, with the main body 31 connected to the air nozzle 32. The main body 31 has a curved surface 311, which faces the side of the roller 1. An air outlet 312 is provided on the curved surface 311; the air outlet 312 is elongated and spirals around the central axis of the roller 1. An air supply channel 313 and an air cavity 314 are provided inside the main body 31, with the air cavity 314 extending axially along the roller 1 within the main body 31. One end of the air supply channel 313 is connected to the air nozzle 32. The air nozzle 32 is connected to one end of the air cavity 314, and the air supply channel 313 is located on the side of the air cavity 314 closest to the roller 1, with the air cavity 314 connected to the air supply channel 313. The air outlet 312 is located on the side of the air supply channel 313 closest to the roller 1, and the air supply channel 313 is connected to the air outlet 312. The air supply channel 313 is inclined towards the suction component 2. When it is necessary to remove the waste dust on the electrode 7, the operator can input gas into the air nozzle 32. The gas enters the air chamber 314 through the air nozzle 32, and then enters the air supply channel 313 from the air chamber 314. After being guided by the air supply channel 313, the gas is blown onto the electrode 7 on the roller 1 along the inclined direction of the air supply channel 313, carrying away the waste dust on the electrode 7 and flowing along the surface of the electrode 7 to the dust suction port 21.

[0028] This application opens an air outlet 312 on the curved surface 311, so that the air outlet 312 extends spirally around the central axis of the roller 1, ensuring that the air outlet 312 has sufficient length in the axial direction of the roller 1 to blow air over the entire width of the electrode sheet 7, ensuring that the entire width of the electrode sheet 7 can be dusted. Furthermore, due to the spiral extension of the central axis of the roller 1, the air supply channel 313 can be tilted towards the dust collection component 2, and the gas blown out of the air outlet 312 can blow all the waste dust towards the dust collection port 21, ensuring that the waste dust will not fall outside the battery electrode sheet conformal dust removal device, and avoiding waste dust pollution of the equipment's production environment.

[0029] See Figure 2-4 In some embodiments, the extension direction of the air outlet 312 forms an angle A with the axial direction of the roller 1, and the angle A is 0~30°. The gas coming out of the air outlet 312 can blow away the waste dust on the electrode 7 to the greatest extent and blow all the waste dust into the dust suction port 21. In addition, limiting the angle A to 0~30° can ensure that the length of the air outlet 312 in the axial direction of the roller 1 exceeds the width of the electrode 7, and that the gas blown out of the air outlet 312 can act entirely on the electrode 7 on the roller 1.

[0030] See Figure 1-3 The shape of the curved surface 311 matches the shape of the side of the roller 1 facing the main body 31. When the gas blows away the dust on the electrode 7, the curved surface 311 can cover the area where the gas and dust come into contact as much as possible, ensuring that all the dust can enter the dust inlet 21 and will not escape from the gap between the roller 1 and the curved surface 311.

[0031] See Figure 2-5 The air supply channel 313 is elongated, and its length direction is the same as that of the air outlet 312. This ensures that after the gas enters the air supply channel 313 from the air chamber 314, the gas can diffuse evenly within the air supply channel 313 and pass evenly through the air outlet 312 before flowing to the electrode 7 on the roller 1. The width direction of the air supply channel 313 is inclined towards the dust collection component 2, allowing the gas to flow along the width direction of the air supply channel 313. This guides the gas through the air supply channel 313 and flows to the surface of the electrode 7 before flowing towards the dust collection port 21, preventing the gas from flowing to the side away from the dust collection port 21 and causing dust contamination of the equipment. The roller 1 has a conveyor belt area that contacts the electrode 7. This conveyor belt area is located between the dust collection port 21 and the end of the air outlet 312 furthest from the dust collection port 21, ensuring that the air outlet 312 can blow all the dust across the entire width of the electrode 7 into the dust collection port 21, thereby ensuring that the dust on the electrode 7 is thoroughly cleaned.

[0032] See Figure 1-4In some embodiments, the suction port 21 is oriented in the same direction as the axial direction of the roller 1. When gas is blown onto the electrode 7 on the roller 1, the gas can flow along the surface of the electrode 7 and blow the waste dust towards the suction port 21, so that all the waste dust on the electrode 7 enters the suction port 21. The suction port 21 is a circular hole, and the center of the suction port 21 is on the central axis of the roller 1. The diameter of the suction port 21 is larger than the diameter of the roller 1, ensuring that when the gas flows along the surface of the electrode 7, all the waste dust on the electrode 7 can be blown into the suction port 21.

[0033] See Figure 1-3 The battery electrode contour dust removal device also includes a drive mechanism 4, a base 5, and an air supply assembly 6. The air supply assembly 6 and the drive mechanism 4 are mounted on the base 5. The air supply assembly 6 is connected to the air nozzle 32 via a pipe, and can supply air to the air nozzle 32. The drive mechanism 4 is connected to the air knife 3, and drives the air knife 3 to move toward or away from the roller 1. The operator can adjust the distance between the main body 31 and the roller 1 according to the thickness of the electrode 7; when the roller 1 or the main body 31 needs maintenance, the operator can also use the drive mechanism 4 to increase the distance between the main body 31 and the roller 1.

[0034] See Figure 1-3 In some embodiments, the drive mechanism 4 includes a guide rail 41, a slider 42, and a power component 43. The guide rail 41 extends vertically, and the slider 42 is mounted on the guide rail 41 and can slide up and down along the guide rail 41. The main body 31 is fixed to the slider 42, and the power component 43 is connected to the slider 42. The power component 43 drives the slider 42 to slide along the guide rail 41. The power component 43 can be a cylinder or a hydraulic cylinder. The main body 31 is located above the roller 1, and the power component 43 can drive the slider 42 to slide up and down, thereby driving the main body 31 to move toward or away from the roller 1. In some embodiments, the drive mechanism 4 can be a lead screw slide module.

[0035] See Figure 1-3 The battery electrode contour dust removal device also includes a filter and a gas collection block. The filter is connected to the end of the gas nozzle 32 facing away from the main body 31. The filter is connected to the gas collection block, and the gas collection block is connected to the gas nozzle 32. External equipment can supply gas to the filter. After the gas is filtered by the filter, it enters the gas collection block and then reaches the gas nozzle 32 through a pipeline. The filter can remove impurities in the gas, preventing impurities in the gas from contaminating the electrode 7.

[0036] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0037] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A battery electrode contour-following dust removal device, characterized in that, include: Roller pass; A dust-collecting component is located on one side of the roller, and the dust-collecting component has a dust-collecting port facing the roller. An air knife includes a main body and an air nozzle. The main body is connected to the air nozzle. The main body has a curved surface, which faces the side of the roller. An air outlet is provided on the curved surface, and the air outlet extends spirally around the central axis of the roller. An air supply channel is provided inside the main body, which is connected to the air outlet. One end of the air supply channel is connected to the air nozzle, and the air supply channel is inclined towards the dust collection component.

2. The battery electrode contour dust removal device according to claim 1, characterized in that: The extension direction of the air outlet forms an angle A with the axial direction of the roller, and the angle A is 0~30°.

3. The battery electrode contour dust removal device according to claim 2, characterized in that: The shape of the curved surface matches the shape of the side of the roller facing the main body.

4. The battery electrode contour dust removal device according to claim 2, characterized in that: The length direction of the air supply channel is the same as the extension direction of the air outlet, and the width direction of the air supply channel is inclined towards the direction of the dust collection component.

5. The battery electrode contour dust removal device according to claim 1, characterized in that: The suction port is oriented in the same direction as the axial direction of the roller.

6. The battery electrode contour dust removal device according to claim 1 or 5, characterized in that: The roller has a belt-carrying area that contacts the electrode sheet, and the belt-carrying area is located between the dust inlet and the air outlet at the end away from the dust inlet.

7. The battery electrode contour dust removal device according to claim 5, characterized in that: The center of the dust suction port is on the central axis of the roller, and the diameter of the dust suction port is larger than the diameter of the roller.

8. The battery electrode contour dust removal device according to claim 1, characterized in that: It also includes a drive mechanism connected to the air knife, which drives the air knife to move toward or away from the roller.

9. The battery electrode contour dust removal device according to claim 8, characterized in that: The driving mechanism includes a guide rail, a slider, and a power component. The guide rail extends vertically, the slider is mounted on the guide rail, the main body is connected to the slider, and the power component is connected to the slider. The power component drives the slider to slide along the guide rail.

10. The battery electrode contour dust removal device according to claim 1, characterized in that: It also includes a filter, which is connected to the end of the air nozzle facing away from the main body.

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