Equipment for detecting surface defects of lithium battery pole piece

Abstract

The utility model discloses a device for detecting lithium battery pole piece surface defect, including transmission frame, adjusting assembly and moving assembly, the adjusting assembly includes visual inspection assembly, the visual inspection assembly is fixedly connected to the front side of transmission frame, the top of the visual inspection assembly is provided with support frame, and the support frame is provided with a movable assembly. A lighting assembly is movably connected into the supporting frame, a rotating plate is fixedly connected to the front side of the lighting assembly, a through opening is formed in the rotating plate, a screw is slidably connected into the through opening, a nut is in threaded connection with the surface of the screw, the nut is located at the top of the rotating plate, and a round plate is arranged at the bottom of the nut. The adjusting assembly is used for adjusting the illumination angle of the light source, deviation of the illumination angle of the light source is prevented, the visual detection mechanism can distinguish the pole piece and the rotating roller, the defects of the pole piece can be effectively detected, and design defects do not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery electrode sheets, and specifically relates to a device for detecting surface defects of lithium battery electrode sheets. Background Art

[0002] Lithium battery electrode sheets are an important part of lithium batteries. As carriers of the active materials on the positive and negative electrodes of the battery, they play a crucial role in the performance and safety of the battery. The following is a detailed analysis of lithium battery electrode sheets: I. Composition of lithium battery electrode sheets. Lithium battery electrode sheets are mainly composed of a substrate, active materials, binders, and conductive agents, etc. Substrate: Usually metal foils, such as copper foil (positive electrode) and aluminum foil (negative electrode), which provide support for the active materials and serve as current collectors. Active materials: They are the main substances for the electrochemical reactions in the battery and determine the capacity and energy density of the battery. Common positive electrode active materials include lithium cobaltate, nickel cobalt manganese ternary materials, lithium iron phosphate, etc.; the negative electrode active material is mainly graphite. Binder: Used to firmly bond the active materials to the substrate to ensure the structural stability of the battery during charge and discharge. Conductive agent: Improves the electrical conductivity of the electrode sheet and promotes the progress of electrochemical reactions. II. Design of lithium battery electrode sheets. The design of lithium battery electrode sheets is a key link in the battery manufacturing process, which directly affects various performance indicators of the battery. The key factors that need to be concerned during the design process include: Selection and ratio of active materials: Different active materials have different electrochemical properties, and a reasonable ratio can improve the overall performance of the battery.

[0003] A visual inspection module for lithium battery electrode sheets with the patent number CN217911651U published on the Chinese Patent Network relates to the technical field of lithium battery electrode sheet detection. To solve the problems that the existing visual inspection module has low detection efficiency and cannot sort the lithium battery electrode sheets in time after the detection is completed, the visual inspection module includes a first conveyor belt and a second conveyor belt. A first visual inspection mechanism is installed above the first conveyor belt, and a second visual inspection structure is installed above the second conveyor belt. The lithium battery electrode sheet body is located at the upper ends of the first conveyor belt and the second conveyor belt. Both the first visual inspection mechanism and the second visual inspection structure include vertical plates. There are two vertical plates. Above the two vertical plates, a top plate is installed. A visual inspection camera is installed at the lower end of the top plate. Auxiliary inspection mechanisms are installed on the inner sides of both vertical plates. The auxiliary inspection mechanism includes supplementary light tubes and auxiliary inspection cameras. There are two supplementary light tubes, but this electrode sheet detection mechanism does not have an adjustment component. When the illumination angle of the light source deviates, it will be difficult for the visual inspection mechanism to distinguish the electrode sheet from the roller, resulting in difficulty in effectively detecting the defects of the electrode sheet, and there are design drawbacks.

[0004] Therefore, it is necessary to design and transform the component for detecting the surface defects of lithium battery electrodes to effectively prevent the phenomenon that its angle is difficult to adjust. Summary of the Invention

[0005] To solve the problems raised in the above background technology, the purpose of the present utility model is to provide a device for detecting the surface defects of lithium battery electrodes, which has the advantage of angle adjustment and solves the problem of difficult angle adjustment.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A device for detecting the surface defects of lithium battery electrodes, including a transmission frame, an adjustment component and a moving component;

[0007] The adjustment component includes a vision detection component, the vision detection component is fixedly connected to the front side of the transmission frame, a support frame is arranged on the top of the vision detection component, an illumination component is movably connected inside the support frame, a rotating plate is fixedly connected to the front side of the illumination component, a through hole is opened inside the rotating plate, a screw rod is slidably connected inside the through hole, a nut is threadedly connected to the surface of the screw rod, the nut is located on the top of the rotating plate, a circular plate is arranged at the bottom of the nut, a sliding block is fixedly connected to the bottom of the circular plate, and a sliding groove is opened on the top of the rotating plate, and the sliding groove is slidably connected with the sliding block.

[0008] As a preferred embodiment of the present utility model, the moving component includes a limiting frame, the bottom of the limiting frame is fixedly connected to the top of the vision detection component, fixing ears are fixedly connected to both sides of the support frame, a circular hole is opened on the top of the vision detection component, and a bolt is arranged on the top of the fixing ear.

[0009] As a preferred embodiment of the present utility model, a limiting plate is fixedly connected to the top of the vision detection component, a square plate is fixedly connected to the bottom of the bolt, and the square plate is slidably connected with the limiting plate.

[0010] As a preferred embodiment of the present utility model, a connecting ring is fixedly connected to the surface of the nut, a limiting ring is fixedly connected to the top of the circular plate, and the connecting ring is located inside the limiting ring.

[0011] As a preferred embodiment of the present utility model, a top plate is fixedly connected to the top of the screw rod, and the top plate is located on the top of the nut.

[0012] As a preferred embodiment of the present utility model, a corrosion-resistant layer is arranged on the surface of the support frame, and the number of the support frames is two.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The utility model adjusts the illumination angle of the light source by using an adjusting component to prevent deviation of the illumination angle of the light source. The visual detection mechanism can distinguish the pole piece from the roller and can effectively detect pole piece defects, without design drawbacks.

[0015] 2. By setting a moving component, the utility model can adjust the lateral position of the lighting component, adapt to pole pieces at different positions, and improve the lighting range of the lighting component.

[0016] 3. By setting a limiting plate and a square plate, the utility model can limit the screw rod to prevent the screw rod from shaking and improve the stability of the screw rod.

[0017] 4. By setting a connecting ring and a limiting ring, the utility model can connect the nut to the round plate, prevent the nut from detaching from the round plate, and improve the stability of the nut.

[0018] 5. By setting a top plate, the utility model can limit the nut to prevent the nut from detaching from the screw rod and improve the stability of the nut.

[0019] 6. By setting a corrosion-resistant layer, the utility model can prevent the support frame from being corroded and improve the service life of the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the utility model;

[0021] Figure 2 is a three-dimensional schematic diagram of the visual detection component of the utility model;

[0022] Figure 3 is a three-dimensional schematic diagram of the rotating plate of the utility model;

[0023] Figure 4 is a three-dimensional schematic diagram of the sliding groove of the utility model.

[0024] In the figure: 1, drive frame; 2, adjusting component; 201, visual detection component; 202, support frame; 203, lighting component; 204, rotating plate; 205, through hole; 206, screw rod; 207, nut; 208, round plate; 209, sliding block; 210, sliding groove; 3, moving component; 301, limiting frame; 302, fixed ear; 303, round hole; 304, bolt; 4, limiting plate; 5, square plate; 6, connecting ring; 7, limiting ring; 8, top plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1 to 4 shown, a device for detecting surface defects of lithium battery electrodes provided by the present utility model includes a transmission frame 1, an adjustment assembly 2 and a moving assembly 3;

[0027] The adjustment assembly 2 includes a visual detection assembly 201. The visual detection assembly 201 is fixedly connected to the front side of the transmission frame 1. A support frame 202 is arranged on the top of the visual detection assembly 201. An illumination assembly 203 is movably connected inside the support frame 202. A rotating plate 204 is fixedly connected to the front side of the illumination assembly 203. A through hole 205 is opened inside the rotating plate 204. A screw rod 206 is slidably connected inside the through hole 205. A nut 207 is threadedly connected to the surface of the screw rod 206. The nut 207 is located on the top of the rotating plate 204. A circular plate 208 is arranged at the bottom of the nut 207. A sliding block 209 is fixedly connected to the bottom of the circular plate 208. A sliding groove 210 is opened on the top of the rotating plate 204. The sliding groove 210 is slidably connected to the sliding block 209.

[0028] Referring to Figure 2 , the moving assembly 3 includes a limiting frame 301. The bottom of the limiting frame 301 is fixedly connected to the top of the visual detection assembly 201. Fixed ears 302 are fixedly connected to both sides of the support frame 202. A circular hole 303 is opened on the top of the visual detection assembly 201. A bolt 304 is arranged on the top of the fixed ear 302.

[0029] As a technical optimization scheme of the present utility model, by setting the moving assembly 3, the horizontal position of the illumination assembly 203 can be adjusted, which can adapt to electrodes at different positions and improve the illumination range of the illumination assembly 203.

[0030] Referring to Figure 3 , a limiting plate 4 is fixedly connected to the top of the visual detection assembly 201. A square plate 5 is fixedly connected to the bottom of the bolt 304. The square plate 5 is slidably connected to the limiting plate 4.

[0031] As a technical optimization scheme of the present utility model, by setting the limiting plate 4 and the square plate 5, the screw rod 206 can be limited to prevent the screw rod 206 from shaking and improve the stability of the screw rod 206.

[0032] Referring to Figure 4, a connecting ring 6 is fixedly connected to the surface of the nut 207, a limiting ring 7 is fixedly connected to the top of the circular plate 208, and the connecting ring 6 is located inside the limiting ring 7.

[0033] As a technical optimization scheme of the present utility model, by providing the connecting ring 6 and the limiting ring 7, the nut 207 can be connected to the circular plate 208, preventing the nut 207 from detaching from the circular plate 208 and improving the stability of the nut 207.

[0034] Reference Figure 4 , a top plate 8 is fixedly connected to the top of the screw rod 206, and the top plate 8 is located on top of the nut 207.

[0035] As a technical optimization scheme of the present utility model, by providing the top plate 8, the nut 207 can be limited, preventing the nut 207 from detaching from the screw rod 206 and improving the stability of the nut 207.

[0036] Reference Figure 2 , a corrosion-resistant layer is provided on the surface of the support frame 202, and the number of support frames 202 is two.

[0037] As a technical optimization scheme of the present utility model, by providing the corrosion-resistant layer, the support frame 202 can be prevented from being corroded, improving the service life of the support frame 202.

[0038] The working principle and usage process of the present utility model: When in use, when the angle of the lighting component 203 needs to be adjusted, the nut 207 is rotated. The nut 207 pushes the circular plate 208 downward through the thread. The circular plate 208 drives the rotating plate 204 to rotate downward through the sliding block 209. The rotating plate 204 drives the lighting component 203 to rotate upward around the support frame 202. At this time, the sliding groove 210 limits the rotating plate 204 through the sliding block 209 to prevent the rotating plate 204 from rotating upward. Reversing the above steps can rotate the lighting component 203 downward, achieving the effect of adjusting the angle. The horizontal position of the lighting component 203 can be adjusted through the bolt 304 and the round hole 303.

[0039] In summary: The device applied to detect the surface defects of lithium battery electrodes uses the adjustment component to adjust the lighting angle of the light source, preventing deviation in the lighting angle of the light source. The visual inspection mechanism can distinguish the electrode and the roller, and can effectively detect the electrode defects. There are no design drawbacks, solving the problem of difficult angle adjustment.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting surface defects of lithium battery electrode sheets, comprising a transmission frame (1), an adjustment component (2) and a moving component (3). It is characterized in that: The adjustment component (2) includes a visual detection component (201), the visual detection component (201) is fixedly connected to the front side of the transmission frame (1), a support frame (202) is arranged on the top of the visual detection component (201), an illumination component (203) is movably connected inside the support frame (202), a rotating plate (204) is fixedly connected to the front side of the illumination component (203), a through hole (205) is formed inside the rotating plate (204), a screw rod (206) is slidably connected inside the through hole (205), a nut (207) is threadedly connected to the surface of the screw rod (206), the nut (207) is located on the top of the rotating plate (204), a circular plate (208) is arranged at the bottom of the nut (207), a sliding block (209) is fixedly connected to the bottom of the circular plate (208), a sliding groove (210) is formed on the top of the rotating plate (204), and the sliding groove (210) is slidably connected to the sliding block (209).

2. The device for detecting surface defects of lithium battery electrode sheets according to claim 1, wherein: The moving component (3) includes a limiting frame (301), the bottom of the limiting frame (301) is fixedly connected to the top of the visual detection component (201), fixing ears (302) are fixedly connected to both sides of the support frame (202), a circular hole (303) is formed on the top of the visual detection component (201), and a bolt (304) is arranged on the top of the fixing ear (302).

3. The device for detecting surface defects of lithium battery electrode sheets according to claim 2, wherein: A limiting plate (4) is fixedly connected to the top of the visual detection component (201), a square plate (5) is fixedly connected to the bottom of the bolt (304), and the square plate (5) is slidably connected to the limiting plate (4).

4. An apparatus for detecting surface defects of lithium battery electrodes according to claim 1, characterized in that: A connecting ring (6) is fixedly connected to the surface of the nut (207), a limiting ring (7) is fixedly connected to the top of the circular plate (208), and the connecting ring (6) is located inside the limiting ring (7).

5. An apparatus for detecting surface defects of lithium battery electrodes according to claim 1, characterized in that: A top plate (8) is fixedly connected to the top of the screw rod (206), and the top plate (8) is located on the top of the nut (207).

6. The device for detecting surface defects of lithium battery electrodes according to claim 1, characterized in that: A corrosion-resistant layer is arranged on the surface of the support frame (202), and the number of the support frames (202) is two.

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