Lithium battery pole piece unwinding device with offset correction function

Abstract

The utility model discloses a lithium battery pole piece unwinding device with an offset correction function, and relates to the technical field of lithium battery pole piece unwinding devices. The bottom of the sensor is fixedly connected with a sliding block, the two ends of the sliding rod are fixedly connected with connecting pieces, one end of each connecting piece is fixedly connected with a second motor, and the inner wall of each connecting piece is fixedly connected with a telescopic rod. The second motor drives the telescopic rod to stretch out and draw back, so that the telescopic rod drives the sliding block to slide outside the sliding rod, the deviation position of the pole piece on the deviation rectifying wheel is adjusted, and the situation that the pole piece deviates in the conveying process, and consequently defective goods appear in the subsequent machining process is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery electrode unwinding device, specifically a lithium battery electrode unwinding device with offset correction function. Background Technology

[0002] Lithium-ion battery electrodes are a crucial component of lithium-ion batteries, directly impacting their performance and safety. Electrodes are typically composite structures composed of current collectors and active materials. In lithium-ion batteries, aluminum foil is generally used as the current collector for the positive electrode, while copper foil is used for the negative electrode. The manufacturing process of electrodes includes unwinding, coating, rolling, slitting, and tab welding. These processes are vital to the battery's capacity, consistency, and safety. The manufacturing of lithium-ion battery electrodes is a precise process requiring strict process control.

[0003] Existing lithium battery electrode unwinding devices mainly involve placing the lithium battery electrode sheet onto the unwinding device, which is then transported stably by guide wheels for further processing. However, during the unwinding process, the electrode sheet may deviate from the guide wheels, resulting in defective products in subsequent processing, affecting the processing of the electrode sheet and wasting material costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lithium battery electrode unwinding device with offset correction function, which solves the problem that the electrode may deviate from the guide wheel during the unwinding process, resulting in defective electrode products in subsequent processing, affecting electrode processing and wasting material costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery electrode unwinding device with offset correction function. It includes a conveying assembly, a correction assembly fixedly connected to the bottom of the conveying assembly, the correction assembly including a correction wheel, a sensor fixedly connected to one end of the correction wheel, a slider fixedly connected to the bottom of the sensor, holes at both ends of the slider and sliding rods inside, connecting members fixedly connected to both ends of the sliding rods, a second motor fixedly connected to one end of the connecting member, and a telescopic rod fixedly connected to the inner wall of the connecting member.

[0006] Preferably, the conveying assembly includes a mounting plate, one end of which is fixedly connected to an unwinding wheel, and the other end of which is provided with a groove. An adjusting wheel is slidably connected inside the groove, and a cylinder is movably connected to the back of the adjusting wheel. A fixing member is movably connected to the bottom of the cylinder.

[0007] Preferably, the upper end of the mounting plate is movably connected to a first guide wheel, a second guide wheel, and a third guide wheel; the side of the mounting plate is fixedly connected to a side guide wheel; the surface of the mounting plate is movably connected to a side guide wheel; and the lower part of the mounting plate is movably connected to a first conveyor wheel and a second conveyor wheel.

[0008] Preferably, the slide groove is arc-shaped, one end of the adjusting wheel is slidably connected inside the slide groove, and the other end of the adjusting wheel is movably connected to the center of the slide groove.

[0009] Preferably, a base plate is fixedly connected to the bottom of the mounting plate, and a motor is fixedly connected to the back of the mounting plate. The output end of the motor passes through the mounting plate and is fixedly connected to the unwinding wheel on the surface of the mounting plate.

[0010] Preferably, a fixing plate and a second fixing plate are fixedly connected to one top end of the mounting plate, and the correction wheel is movably connected to the middle of the fixing plate and the second fixing plate.

[0011] Preferably, the top of the sensor has a slot, and the connector is fixedly connected inside the slot of the sensor.

[0012] Preferably, the slider is slidably connected to the surface of the slide rod, and the slide rod is symmetrically arranged about the inside of the connector.

[0013] Preferably, one end of the telescopic rod is fixedly connected to the side of the slider, and the output end of the second motor passes through the side of the connector and is fixedly connected to the telescopic rod on the inner wall of the connector.

[0014] This invention provides a lithium battery electrode unwinding device with offset correction function. Compared with the prior art, it has the following advantages:

[0015] 1. A lithium battery electrode unwinding device with offset correction function, wherein the lithium battery electrode is conveyed to the surface of the correction wheel by a second conveying wheel. When the sensor detects that the electrode deviates from the set range, the second motor drives the telescopic rod to extend and retract, so that the telescopic rod drives the slider to slide outside the slide bar to adjust the position of the electrode on the correction wheel, so as to avoid the electrode from deviating during the conveying process, which would result in defective products in subsequent processing.

[0016] 2. A lithium battery electrode unwinding device with offset correction function, which drives the adjusting wheel to rotate around the center of the slide groove by extending and retracting the cylinder, thereby adjusting the tension of the electrode sheet conveyed on the surface by the adjusting wheel, preventing wear or external factors from affecting the unwinding device and the guide wheel and other equipment that convey the electrode sheet, thereby realizing the synchronous conveying of the electrode sheet by the unwinding device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the conveying component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the back structure of the conveying assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the correction component structure of this utility model.

[0021] In the diagram: 1. Conveying assembly; 2. Correcting assembly; 11. Mounting plate; 12. First guide wheel; 13. Second guide wheel; 14. Third guide wheel; 15. Side guide wheel; 16. First conveying wheel; 17. Second conveying wheel; 18. Unwinding wheel; 19. Adjusting wheel; 110. Base plate; 111. Cylinder; 112. Fixing component; 113. Motor; 100. Slide groove; 21. Correcting wheel; 22. Sensor; 23. Connecting component; 24. Slider; 25. Slide rod; 26. Second motor; 27. Fixing plate; 28. Second fixing plate; 29. ​​Telescopic rod. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4This utility model provides a technical solution: a lithium battery electrode unwinding device with offset correction function. It includes a conveying assembly 1, with a correction assembly 2 fixedly connected to the bottom of the conveying assembly 1. The correction assembly 2 includes a correction wheel 21, and a sensor 22 fixedly connected to one end of the correction wheel 21. The sensor 22 consists of four parts: a sensitive element, a conversion element, a conversion circuit, and an auxiliary power supply. These four parts cooperate to complete the sensing, conversion, and output functions of the sensor 22. It can sense the position of the electrode on the correction wheel 21 and convert the offset distance of the electrode into a digital signal, which is then transmitted to the control terminal to control the second motor 26 to start and drive the correction device. A slider 24 is fixedly connected to the bottom of the sensor 22. The slider 24 is connected to the bottom of the sensor 22 and drives the correction wheel 21, which is movably connected to one end of the sensor 22, to correct the offset electrode. The slider 24 has holes at both ends and a slide rod 25 is provided inside. The two ends of the slide rod 25 are fixedly connected to the connector 23. One end of the connector 23 is fixedly connected to the second motor 26. The inner wall of the connector 23 is fixedly connected to the telescopic rod 29. The telescopic rod 29 is used to extend and retract under the action of the second motor 26, which drives the slider 24, which is fixedly connected to one end, to slide outside the slide rod 25, and drives the correction wheel 21, which is movably connected to one end of the sensor 22 at the top of the slide rod 25, to correct the offset of the electrode.

[0024] Please see Figure 1-3 The conveying assembly 1 includes a mounting plate 11. One end of the mounting plate 11 is fixedly connected to an unwinding wheel 18, which is used to mount the electrode roll. The other end of the mounting plate 11 has a groove 100. An adjusting wheel 19 is slidably connected inside the groove 100. A cylinder 111 is movably connected to the back of the adjusting wheel 19. A fixing member 112 is movably connected to the bottom of the cylinder 111. The cylinder 111 can drive the adjusting wheel 19 to slide inside the groove 100, adjusting the tension of the electrode roll and preventing friction between the electrode roll and the unwinding device from causing equipment wear or preventing synchronization issues during electrode conveying. The upper end of the mounting plate 11 is movably connected to a first guide wheel 12 and a second guide wheel 13. Guide wheel 13 and third guide wheel 14 are fixedly connected to the side of mounting plate 11. Side guide wheel 15 is movably connected to the surface of mounting plate 150. First conveying wheel 16 and second conveying wheel 17 are movably connected to the bottom of mounting plate 11. Electrode sheets slide on the outside of both, which play the role of conveying the electrode sheets. The slide groove 100 is arc-shaped. One end of adjusting wheel 19 is slidably connected to the inside of slide groove 100, and the other end of adjusting wheel 19 is movably connected to the center of slide groove 100. Base plate 110 is fixedly connected to the bottom of mounting plate 11. Motor 113 is fixedly connected to the back of mounting plate 11. The output end of motor 113 passes through mounting plate 11 and is fixedly connected to unwinding wheel 18 on the surface of mounting plate 11.

[0025] Please see Figure 1-4The top end of the mounting plate 11 is fixedly connected to a fixing plate 27 and a second fixing plate 28. The correction wheel 21 is movably connected to the middle of the fixing plate 27 and the second fixing plate 28. The top of the sensor 22 has a slot. The connector 23 is fixedly connected to the inside of the slot in the sensor 22. The slider 24 is slidably connected to the surface of the slide rod 25. The slide rod 25 is symmetrically arranged about the inside of the connector 23. The symmetrical arrangement of the slide rod 25 can fix the movement direction of the slider 24 when it is pushed by the telescopic rod 29. One end of the telescopic rod 29 is fixedly connected to the side of the slider 24. The output end of the second motor 26 passes through the side of the connector 23 and is fixedly connected to the inner wall of the connector 23 with the telescopic rod 29.

[0026] In use, the lithium battery electrode is first installed on the outside of the unwinding roller 18. The first guide roller 12, the second guide roller 13, the third guide roller 14, the side guide roller 15, the first conveying roller 16, the second conveying roller 17, and the adjusting roller 19 work together to convey the lithium battery electrode to the surface of the correction roller 21. When the sensor 22 detects that the electrode deviates from the set range, the second motor 26 drives the telescopic rod 29 to extend and retract, so that the telescopic rod 29 drives the slider 24 to slide outside the slide rod 25 to adjust the position of the electrode on the correction roller 21, so as to avoid the electrode from deviating during the conveying process. As the cylinder 111 extends and retracts, it drives the adjusting roller 19 to rotate around the center of the slide groove 100, thereby adjusting the tension of the electrode conveyed on the surface. This prevents wear or external factors from affecting the equipment that conveys the electrode, such as the unwinding device and the guide roller, thus realizing the synchronous conveying of the electrode by the unwinding device.

[0027] In this embodiment, a lithium battery electrode unwinding device with offset correction function is described. The structural features and working principle of the above-mentioned components are based on existing technologies and will not be detailed here.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery electrode unwinding device with offset correction function, comprising a conveying assembly (1), characterized in that: The bottom of the conveying component (1) is fixedly connected to the correction component (2); The correction assembly (2) includes a correction wheel (21), a sensor (22) is fixedly connected to one end of the correction wheel (21), a slider (24) is fixedly connected to the bottom of the sensor (22), the slider (24) has holes at both ends and a sliding rod (25) is provided inside, a connector (23) is fixedly connected to both ends of the sliding rod (25), a second motor (26) is fixedly connected to one end of the connector (23), and a telescopic rod (29) is fixedly connected to the inner wall of the connector (23). The conveying assembly (1) includes a mounting plate (11), one end of which is fixedly connected to an unwinding wheel (18), and the other end of which is provided with a sliding groove (100). An adjusting wheel (19) is slidably connected inside the sliding groove (100), and a cylinder (111) is movably connected to the back of the adjusting wheel (19). A fixing member (112) is movably connected to the bottom of the cylinder (111).

2. The lithium battery electrode unwinding device with offset correction function according to claim 1, characterized in that: The upper end of the mounting plate (11) is movably connected to a first guide wheel (12), a second guide wheel (13) and a third guide wheel (14), the side of the mounting plate (11) is fixedly connected to a (150), the surface of the (150) is movably connected to a side guide wheel (15), and the lower part of the mounting plate (11) is movably connected to a first conveyor wheel (16) and a second conveyor wheel (17).

3. The lithium battery electrode unwinding device with offset correction function according to claim 1, characterized in that: The slide groove (100) is arc-shaped, one end of the adjusting wheel (19) is slidably connected inside the slide groove (100), and the other end of the adjusting wheel (19) is movably connected to the center of the slide groove (100).

4. A lithium battery electrode unwinding device with offset correction function according to claim 2, characterized in that: The bottom of the mounting plate (11) is fixedly connected to a base plate (110), and the back of the mounting plate (11) is fixedly connected to a motor (113). The output end of the motor (113) passes through the mounting plate (11) and is fixedly connected to the unwinding wheel (18) on the surface of the mounting plate (11).

5. A lithium battery electrode unwinding device with offset correction function according to claim 4, characterized in that: The top end of the mounting plate (11) is fixedly connected to a fixing plate (27) and a second fixing plate (28), and the correction wheel (21) is movably connected to the middle of the fixing plate (27) and the second fixing plate (28).

6. A lithium battery electrode unwinding device with offset correction function according to claim 1, characterized in that: The top of the sensor (22) has a slot, and the connector (23) is fixedly connected inside the slot of the sensor (22).

7. A lithium battery electrode unwinding device with offset correction function according to claim 1, characterized in that: The slider (24) is slidably connected to the surface of the slide rod (25), which is symmetrically arranged about the inside of the connector (23).

8. A lithium battery electrode unwinding device with offset correction function according to claim 1, characterized in that: One end of the telescopic rod (29) is fixedly connected to the side of the slider (24), and the output end of the second motor (26) passes through the side of the connector (23) and is fixedly connected to the telescopic rod (29) on the inner wall of the connector (23).

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