A lithium battery electrode burr cleaning device

Abstract

This invention relates to the field of lithium battery electrode technology and discloses a lithium battery electrode burr cleaning device, including a frame with a conveyor belt in the middle for placing lithium battery electrodes to be cleaned. A straightening plate and a cleaning block are sequentially arranged along the conveyor belt's transport direction. Two sets of straightening plates are positioned on either side of the conveyor belt to straighten the lithium battery electrodes being transported on it. Two sets of cleaning blocks are also positioned on either side of the conveyor belt to clean burrs from the sides of the lithium battery electrodes. A negative pressure adsorption mechanism is located between the two sets of cleaning blocks in the middle of the conveyor belt. The conveyor belt has several ventilation holes for adsorbing the lithium battery electrodes onto it. Through the cooperation of the straightening plates and cleaning blocks, and the stable fixation of the electrodes by the negative pressure adsorption mechanism, the positioning and cleaning of the electrodes are achieved.

Description

Technical Field

[0001] This invention relates to the field of lithium battery electrode technology, specifically to a lithium battery electrode burr cleaning device. Background Technology

[0002] In the lithium battery manufacturing industry, lithium battery electrodes are a core component, and their quality directly affects the performance and safety of lithium batteries. During the electrode production process, processes such as cutting and rolling inevitably produce burrs on the edges of the electrodes. If these burrs are not effectively removed, they can easily puncture the separator during lithium battery assembly and use, leading to short circuits between the positive and negative electrodes, causing battery performance degradation, shortened lifespan, and even potential safety accidents.

[0003] Currently, the main method for cleaning burrs on lithium battery electrodes is manual cleaning. Manual cleaning relies on manual operation by workers, which is not only inefficient and costly, but also highly dependent on the worker's skill level and working condition, making it difficult to guarantee consistent cleaning quality. Therefore, developing a lithium battery electrode burr cleaning device is of significant practical importance. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this application provides a lithium battery electrode burr cleaning device.

[0006] (II) Technical Solution

[0007] To solve the above problems, this application provides the following technical solution: a lithium battery electrode burr cleaning device, including a frame, the frame being arranged in a "U" shape, a conveyor belt being arranged in the middle of the frame, the conveyor belt being used to place the lithium battery electrode to be cleaned and to drive the lithium battery electrode to move, and a straightening plate and a cleaning block being arranged sequentially along the conveying direction of the conveyor belt.

[0008] The corrective plates are in two sets, which are arranged on both sides of the conveyor belt. The two sets of corrective plates are arranged in a funnel shape and are used to correct the lithium battery electrode sheets conveyed on the conveyor belt.

[0009] The cleaning blocks are in two sets, which are arranged on both sides of the conveyor belt. The two sets of cleaning blocks are used to clean the burrs on both sides of the lithium battery electrode. A negative pressure adsorption mechanism is arranged between the two sets of cleaning blocks. The negative pressure adsorption mechanism is located in the middle of the conveyor belt. Several ventilation holes are opened on the conveyor belt. The negative pressure air is used by the negative pressure fan to adsorb the lithium battery electrode on the conveyor belt.

[0010] Preferably, the two sets of straightening plates are driven by a first cylinder, which is fixedly installed on both sides of the frame. The spacing between the two sets of straightening plates is adjusted according to the width of the lithium battery electrode to straighten the lithium battery electrode during transportation.

[0011] Preferably, the two sets of cleaning blocks are driven by a second cylinder, which is fixedly installed on both sides of the frame. The spacing between the two sets of cleaning blocks is adjusted according to the width of the lithium battery electrode to clean the burrs on both sides of the lithium battery electrode conveyed on the conveyor belt.

[0012] Preferably, the conveyor belt is driven by several sets of drive shafts to drive the conveyor belt. At least one side of the drive shaft is provided with a first motor to drive the drive shaft to rotate, thereby driving several drive shafts to move synchronously under the action of the conveyor belt.

[0013] Preferably, the cleaning block has a groove on the side near the lithium battery electrode. The two sides of the lithium battery electrode to be cleaned are located in the groove of the cleaning block. A second motor is provided at the top of the groove of the cleaning block. A grinding head is installed on the output shaft of the second motor. The grinding head is located in the groove. The groove is adapted to the side of the lithium battery electrode and is used to clean the burrs on the side of the lithium battery electrode.

[0014] Preferably, the cleaning block is provided with an air pipe inside, one end of which is connected to an air source, and the other end of which is located in the groove of the cleaning block and connected to two jet nozzles. The two jet nozzles are arranged at an angle on the upper and lower sides of the lithium battery electrode sheet to blow away the edges of the lithium battery electrode sheet after the burrs are cleaned.

[0015] Preferably, the negative pressure adsorption mechanism includes a negative pressure fan, the negative pressure fan is connected to an air collecting plate, the air collecting plate is connected to several sets of branch pipes, the branch pipes are located at the middle of the upper and lower sides of the conveyor belt, and the branch pipes are located below the cleaning blocks, for adsorbing and fixing the lithium battery electrode sheets passing between two cleaning blocks.

[0016] Preferably, the bronchus is provided with several sets of negative pressure inhalation ports, which are arranged in a funnel shape.

[0017] Preferably, the cleaning device further includes a controller, which is wired to the first cylinder, the second cylinder, the second motor, and the first motor, and is used to control the coordinated operation between the various mechanisms.

[0018] Preferably, the frame is supported by support columns.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this application provides a lithium battery electrode burr cleaning device, which has the following beneficial effects:

[0021] 1. This lithium battery electrode burr cleaning device achieves electrode positioning and cleaning through the cooperation of the straightening plate and the cleaning block, as well as the stable fixation of the electrode by the negative pressure adsorption mechanism.

[0022] 2. The lithium battery electrode burr cleaning device uses a first cylinder and a second cylinder to drive a straightening plate and a cleaning block respectively to achieve adjustable spacing, which can adapt to lithium battery electrodes of different widths and thicknesses, thus expanding the scope of application and improving versatility.

[0023] 3. This lithium battery electrode burr cleaning device uses an air jet nozzle inside the cleaning block to promptly blow away grinding debris, and a negative pressure adsorption mechanism to collect the debris, effectively avoiding debris residue and secondary pollution, ensuring a clean electrode cleaning environment, and improving electrode quality.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a front view of the structure of a lithium battery electrode burr cleaning device according to this application;

[0027] Figure 2 This is a top view schematic diagram of a lithium battery electrode burr cleaning device according to this application;

[0028] Figure 3 This is a cross-sectional structural schematic diagram of a lithium battery electrode burr cleaning device according to this application;

[0029] Figure 4 This is a schematic diagram of the structure of the cleanup block in this application;

[0030] Figure 5 For this application Figure 4 Enlarged structural diagram at point A;

[0031] Figure 6 This is a schematic diagram of the negative pressure adsorption mechanism of this application;

[0032] Figure 7 This is a side view of the negative pressure adsorption mechanism of this application.

[0033] Reference numerals: 100, frame; 101, drive shaft; 102, first motor; 103, conveyor belt; 104, support column; 200, straightening plate; 201, first cylinder; 300, cleaning block; 301, second cylinder; 302, second motor; 303, grinding head; 304, jet nozzle; 305, air pipe; 400, negative pressure fan; 401, air collection plate; 402, negative pressure air intake; 403, branch pipe; 500, lithium battery electrode. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "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 based on the orientation or positional relationship shown in the accompanying drawings, 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.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] Please see Figures 1-7This application provides a new technical solution: a lithium battery electrode burr cleaning device, including a frame 100, the frame 100 being arranged in a "U" shape, a conveyor belt 103 being arranged in the middle of the frame 100, the conveyor belt 103 being used to place the lithium battery electrode 500 to be cleaned and to drive the lithium battery electrode 500 to move, and a straightening plate 200 and a cleaning block 300 being arranged sequentially along the conveying direction of the conveyor belt 103;

[0039] The corrective plates 200 are in two sets, and the two sets of corrective plates 200 are arranged on both sides of the conveyor belt 103. The two sets of corrective plates 200 are arranged in a funnel shape and are used to correct the lithium battery electrode sheets 500 conveyed on the conveyor belt 103.

[0040] The cleaning blocks 300 are in two sets, and the two sets of cleaning blocks 300 are arranged on both sides of the conveyor belt 103. The two sets of cleaning blocks 300 are used to clean the burrs on both sides of the lithium battery electrode 500. A negative pressure adsorption mechanism is arranged between the two sets of cleaning blocks 300. The negative pressure adsorption mechanism is located in the middle of the conveyor belt 103. The conveyor belt 103 has several ventilation holes. The negative pressure air is used by the negative pressure fan 400 to adsorb the lithium battery electrode 500 on the conveyor belt 103.

[0041] When the lithium battery electrode 500 enters the conveyor belt 103, the straightening plate 200, with its special flared shape, guides and initially corrects the electrode that may shift during transport. Next, two sets of cleaning blocks 300 located on both sides of the conveyor belt 103 have internal structures that clean burrs from both sides of the electrode. Simultaneously, a negative pressure adsorption mechanism located in the middle of the conveyor belt 103 generates negative pressure through a negative pressure fan 400. Air flows through several ventilation holes on the conveyor belt 103, adsorbing and fixing the lithium battery electrode 500 onto the conveyor belt 103, preventing displacement of the electrode during transport and cleaning.

[0042] The U-shaped frame 100 has a stable structure and can effectively resist external vibration interference. The conveyor belt 103 has a transmission speed of 0.5-2m / min, which can be flexibly adjusted according to production needs to adapt to different production rhythms, laying a good foundation for subsequent cleaning work. The negative pressure adsorption mechanism generates an adsorption force of no less than 500Pa, ensuring that the electrode sheet remains stable and does not move during the cleaning process, effectively improving the cleaning accuracy and quality.

[0043] In some embodiments, the two sets of straightening plates 200 are driven by a first cylinder 201, which is fixedly installed on both sides of the frame 100. The spacing between the two sets of straightening plates 200 is adjusted according to the width of the lithium battery electrode 500 to straighten the lithium battery electrode 500 during the transport process.

[0044] The stroke adjustment range of the first cylinder 201 is 0-100mm. When it is necessary to clean lithium battery electrode sheets 500 of different widths, the control system sends a command to the first cylinder 201, which then extends or retracts, thereby changing the spacing between the two sets of straightening plates 200. During the conveying process of the lithium battery electrode sheets 500, the straightening plates 200 with the adjusted spacing precisely straighten the electrode sheets, ensuring that they move smoothly along the central axis of the conveyor belt 103.

[0045] In some embodiments, the two sets of cleaning blocks 300 are driven by a second cylinder 301, which is fixedly installed on both sides of the frame 100. The spacing between the two sets of cleaning blocks 300 is adjusted according to the width of the lithium battery electrode 500 to clean the burrs on both sides of the lithium battery electrode 500 conveyed on the conveyor belt 103.

[0046] The stroke adjustment range of the second cylinder 301 is 0-80mm. Based on the actual width of the lithium battery electrode 500, the control system controls the extension and retraction of the second cylinder 301 to adjust the distance between the two sets of cleaning blocks 300, so that the groove on the side of the cleaning block 300 closest to the lithium battery electrode 500 matches the edge of the electrode. When the lithium battery electrode 500 is conveyed to the position of the cleaning block 300, the structure inside the cleaning block 300 starts to work, cleaning the burrs on both sides of the electrode.

[0047] In some embodiments, the conveyor belt 103 is driven by a plurality of drive shafts 101, which drive the conveyor belt 103 to move. At least one side of each drive shaft 101 is provided with a first motor 102, which drives the drive shaft 101 to rotate. Under the action of the conveyor belt 103, the drive shafts 101 move synchronously. When the first motor 102 is powered on, it operates and outputs power to drive the drive shaft 101 connected to it to rotate. Under the action of the conveyor belt 103, the other drive shafts 101 rotate synchronously, thereby making the conveyor belt 103 run stably and moving the lithium battery electrode 500 placed on it forward.

[0048] In some embodiments, the cleaning block 300 has a groove on one side near the lithium battery electrode 500. The two sides of the lithium battery electrode 500 to be cleaned are located in the groove of the cleaning block 300. A second motor 302 is provided at the top of the groove of the cleaning block 300. A grinding head 303 is installed on the output shaft of the second motor 302. The grinding head 303 is provided in the groove, which is adapted to the side of the lithium battery electrode 500 for cleaning the burrs on the side of the lithium battery electrode 500.

[0049] When the lithium battery electrode 500 is conveyed to the cleaning block 300, both sides of the electrode enter the groove of the cleaning block 300. The second motor 302, installed at the top of the groove, drives the grinding head 303 on the output shaft to rotate at high speed after being powered on. The high-speed rotating grinding head 303 contacts the burrs on the side of the electrode and removes the burrs through grinding, thus cleaning the burrs on the side of the lithium battery electrode 500.

[0050] In some embodiments, the cleaning block 300 is provided with an air pipe 305 inside. One end of the air pipe 305 is connected to an air source, and the other end of the air pipe 305 is located in the groove of the cleaning block 300 and connected to two jet nozzles 304. The two jet nozzles 304 are inclinedly arranged on the upper and lower sides of the lithium battery electrode 500 for blowing away the edges of the lithium battery electrode 500 after deburring. The air source pressure is 0.3-0.5MPa. A control valve is provided at the connection between the air source and the air pipe 305 to control the air pressure. When the grinding head 303 grinds and cleans the burrs on the edges of the lithium battery electrode 500, the jet nozzles 304 work simultaneously, spraying the compressed air transmitted from the air source through the air pipe 305 at a certain angle, using the impact force of the airflow to blow the debris generated during grinding away from the surface of the lithium battery electrode 500.

[0051] In some embodiments, the negative pressure adsorption mechanism includes a negative pressure fan 400, which is connected to an air collecting plate 401. The air collecting plate 401 is connected to a plurality of branch pipes 403. The branch pipes 403 are located at the middle of the upper and lower sides of the conveyor belt 103. The branch pipes 403 are located below the cleaning block 300 and are used to adsorb and fix the lithium battery electrode 500 passing between two cleaning blocks 300.

[0052] The negative pressure generated by the negative pressure fan 400 creates an adsorption force of no less than 500 Pa on the surface of the conveyor belt 103, sufficient to adsorb lithium battery electrode sheets 500 with a thickness ranging from 0.05 to 0.3 mm. Several ventilation holes on the conveyor belt 103 are connected to the negative pressure suction ports 402. Under the action of negative pressure, the lithium battery electrode sheets 500 located on the conveyor belt 103 are adsorbed and fixed. When the lithium battery electrode sheet 500 passes between the two cleaning blocks 300, the negative pressure adsorption mechanism continues to work, ensuring that the electrode sheet remains stable and does not move. The evenly distributed negative pressure suction ports 402 and ventilation holes ensure that the adsorption force on the electrode sheet on the conveyor belt 103 is uniform, preventing deformation of the electrode sheet due to uneven force and ensuring the stability and quality of the electrode sheet during the cleaning process.

[0053] In this embodiment, the bronchus 403 is provided with several sets of negative pressure suction ports 402, which are funnel-shaped. The funnel-shaped suction ports 402 on the bronchus 403 have an opening diameter of 10-15 mm. After the negative pressure fan 400 generates negative pressure suction, the airflow is transmitted through the bronchus 403 to the negative pressure suction ports 402. The funnel-shaped structure allows the airflow to diffuse at the negative pressure suction ports 402, increasing the contact area with the lithium battery electrode 500, thereby more effectively adsorbing and fixing the lithium battery electrode 500 located on the conveyor belt 103.

[0054] In some embodiments, the cleaning device further includes a controller, which is wired to the first cylinder 201, the second cylinder 301, the second motor 302 and the first motor 102, for controlling the coordinated operation of the various mechanisms.

[0055] In some embodiments, the frame 100 is supported by a support column 104. When the device is running, the support column 104 transfers the weight of the frame 100 and the components installed on it to the ground, ensuring the stability of the device operation.

[0056] Working principle: When using a lithium battery electrode burr cleaning device, the operator places the lithium battery electrode 500 to be cleaned on the conveyor belt 103 in the middle of the frame 100. The first motor 102 drives the transmission shaft 101, which in turn drives the conveyor belt 103 to transport the electrode. After the electrode enters the conveying area, the first cylinder 201 adjusts the distance between the two sets of flared straightening plates 200 to guide and initially straighten the electrode, so that it moves forward along the central axis of the conveyor belt 103. The negative pressure fan 400 generates negative pressure, which is absorbed and fixed by the air collection plate 401, the branch pipe 403 and the negative pressure suction port 402 through the air holes of the conveyor belt 103. The second cylinder 301 adjusts the distance between the cleaning blocks 300 so that their grooves fit the sides of the electrode. After the electrode sheet enters the grooves on both sides, the second motor 302 drives the grinding head 303 to rotate and clean the burrs. At the same time, the air jet head 304 sprays compressed air to blow away the debris. The cleaned electrode sheet is sent to the end by the conveyor belt 103, and the operator collects it and proceeds to the next process.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery pole piece burr cleaning device, characterized in that, The device includes a frame, which is U-shaped, and a conveyor belt is provided in the middle of the frame. The conveyor belt is used to place the lithium battery electrode sheets to be cleaned and to move the lithium battery electrode sheets. A straightening plate and a cleaning block are arranged sequentially along the conveyor belt conveying direction. The corrective plates are in two sets, which are arranged on both sides of the conveyor belt. The two sets of corrective plates are arranged in a funnel shape and are used to correct the lithium battery electrode sheets conveyed on the conveyor belt. The cleaning blocks are in two sets, which are arranged on both sides of the conveyor belt. The two sets of cleaning blocks are used to clean the burrs on both sides of the lithium battery electrode. A negative pressure adsorption mechanism is arranged between the two sets of cleaning blocks. The negative pressure adsorption mechanism is located in the middle of the conveyor belt. Several ventilation holes are opened on the conveyor belt. The negative pressure air is used by the negative pressure fan to adsorb the lithium battery electrode on the conveyor belt.

2. The lithium battery electrode burr cleaning device according to claim 1, characterized in that, The two sets of straightening plates are driven by a first cylinder, which is fixedly installed on both sides of the frame. The spacing between the two sets of straightening plates is adjusted according to the width of the lithium battery electrode to straighten the lithium battery electrode during transportation.

3. The lithium battery electrode burr cleaning device according to claim 1, characterized in that, The two sets of cleaning blocks are driven by a second cylinder, which is fixedly installed on both sides of the frame. The spacing between the two sets of cleaning blocks is adjusted according to the width of the lithium battery electrode to clean the burrs on both sides of the lithium battery electrode conveyed on the conveyor belt.

4. The lithium battery electrode burr cleaning device according to claim 1, characterized in that, The conveyor belt is driven by several sets of transmission shafts, which are used to drive the conveyor belt to move. At least one side of the transmission shaft is provided with a first motor, which is used to drive the transmission shaft to rotate and drive the several transmission shafts to move synchronously under the action of the conveyor belt.

5. The lithium battery electrode burr cleaning device according to claim 1, characterized in that, The cleaning block has a groove on one side near the lithium battery electrode. The two sides of the lithium battery electrode to be cleaned are located in the groove of the cleaning block. A second motor is provided at the top of the groove of the cleaning block. A grinding head is installed on the output shaft of the second motor. The grinding head has a groove that matches the side of the lithium battery electrode and is used to clean the burrs on the side of the lithium battery electrode.

6. The lithium battery electrode burr cleaning device according to claim 5, characterized in that, The cleaning block is equipped with an air pipe inside. One end of the air pipe is connected to an air source, and the other end of the air pipe is located in the groove of the cleaning block and connected to two jet nozzles. The two jet nozzles are arranged at an angle on the upper and lower sides of the lithium battery electrode sheet to blow away the edges of the lithium battery electrode sheet after the burrs are removed.

7. The lithium battery electrode burr cleaning device according to claim 1, characterized in that, The negative pressure adsorption mechanism includes a negative pressure fan, which is connected to an air collecting plate. The air collecting plate is connected to several sets of branch pipes. The branch pipes are located at the middle of the upper and lower sides of the conveyor belt. The branch pipes are located below the cleaning blocks and are used to adsorb and fix the lithium battery electrode sheets passing between two cleaning blocks.

8. The lithium battery electrode burr cleaning device according to claim 7, characterized in that, The bronchus is provided with several sets of negative pressure inhalation ports, which are arranged in a funnel shape.

9. The lithium battery electrode burr cleaning device according to claim 1, characterized in that, The cleaning device also includes a controller, which is connected to the first cylinder, the second cylinder, the second motor, and the first motor by wires, and is used to control the coordinated operation between the various mechanisms.

10. A lithium battery electrode burr cleaning device according to claim 1, characterized in that, The frame is supported by support columns.

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