Detection device for snakelike edge of pole piece

Abstract

The utility model relates to a pole piece snakelike edge detection device, comprising a detection bench which provides a flat bench surface used for spreading a pole piece to be detected; the fixing piece is fixedly arranged at the left upper corner of the table top, and the fixing piece is used for fixing the left upper corner of the pole piece to be detected; the sliding rail is horizontally arranged on the right side of the fixing part; the sliding block is arranged on the sliding rail in a sliding mode, and the sliding block is used for simulating the tape moving process in the winding process of the to-be-detected pole piece; the graduated scale is vertically arranged on the right side of the sliding rail, the zero graduation line of the graduated scale and the lower edge of the sliding rail are located on the same horizontal line, and the graduated scale is used for reading the displacement of the right side of the pole piece to be detected in the simulated tape moving process. According to the utility model, by simulating the tape walking process in the winding process, the abnormity of the snakelike edge of the pole piece can be identified in advance, the scrap of the pole piece is reduced, the quality and efficiency of the winding process are improved, and the overall production yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a device for detecting the serpentine edge of a pole piece. Background Art

[0002] In the manufacturing process of 46 series large cylindrical batteries, the winding process is one of the key steps, and the quality of pole piece winding directly affects the production efficiency and battery performance. During the roller pressing and slitting processes of the pole piece, serpentine edges are likely to occur, which will cause abnormal fluctuations in the material line during winding, affecting the production efficiency and yield of the winding process, and further affecting the safety performance of the battery.

[0003] Currently, there is a lack of standardized testing tools for the serpentine edge of pole pieces. Usually, the state of the pole piece is determined by detecting the wavy edge of the stationary pole piece. This method is cumbersome and time-consuming to test, and is affected by subjective factors, and cannot accurately simulate the winding process of the pole piece. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for detecting the serpentine edge of a pole piece aiming at the deficiencies in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provide a device for detecting the serpentine edge of a pole piece, including:

[0007] A detection table, which provides a flat tabletop for spreading the pole piece to be detected;

[0008] A fixing member, which is fixedly arranged at the upper left corner of the tabletop, and is used for fixing the upper left corner of the pole piece to be detected;

[0009] A slide rail, which is horizontally arranged on the right side of the fixing member;

[0010] A slider, which is slidably arranged on the slide rail, and is used for simulating the tape running process during winding for the pole piece to be detected;

[0011] And a scale, which is vertically arranged on the right side of the slide rail, and the zero scale line of the scale is on the same horizontal line as the lower edge of the slide rail, and the scale is used for reading the displacement of the right side of the pole piece to be detected during the simulated tape running process.

[0012] Preferably, the fixing member includes: a bottom plate fixedly arranged at the upper left corner of the tabletop, a connecting plate fixedly arranged at the upper top of the bottom plate, a top plate fixedly arranged at the top of the connecting plate, and a pressing plate slidably arranged between the bottom plate and the top plate; wherein,

[0013] The pressing plate and the bottom plate are used to clamp the upper left corner of the electrode sheet to be detected.

[0014] Preferably, a first rubber buffer layer is provided on the top surface of the bottom plate.

[0015] Preferably, a second rubber buffer layer is provided on the bottom surface of the pressing plate.

[0016] Preferably, the fixing member further includes: a screw; wherein,

[0017] A threaded hole is penetratingly formed in the top plate, and a bearing is provided at a corresponding position on the top surface of the pressing plate;

[0018] The screw is in threaded fit with the threaded hole, the bottom end of the screw is in rotational fit with the bearing, the top end of the screw is higher than the top surface of the top plate, and the screw is used to drive the pressing plate to approach or move away from the bottom plate.

[0019] Preferably, an operating portion is fixedly provided at the top end of the screw, and the operating portion is used to operate the rotation of the screw.

[0020] Preferably, the threaded hole is formed at the center of the top plate.

[0021] Preferably, the fixing member further includes: four limiting rods; wherein,

[0022] Four limiting holes are respectively formed at the four corners of the top plate, the four limiting rods are respectively slidably disposed in the four limiting holes, the bottom ends of the four limiting rods are respectively fixedly connected to the four corners of the top surface of the pressing plate, and the four limiting rods are used to stabilize the sliding of the pressing plate and limit the maximum sliding distance of the pressing plate.

[0023] Preferably, the slider includes: a sliding portion slidably disposed on the slide rail and a main body portion fixedly disposed at the top end of the sliding portion; wherein,

[0024] The lower part of the main body portion is lower than the lower edge of the slide rail, and the main body portion is used to simulate the tape running process during the winding process of the electrode sheet to be detected.

[0025] Preferably, the slider is driven by a linear driving mechanism.

[0026] The utility model adopts the above technical solutions, and compared with the prior art, has the following technical effects:

[0027] The utility model can simulate the tape running process during winding, identify the abnormal snake-shaped edges of the pole piece in advance, reduce the waste of pole pieces, improve the quality and efficiency of the winding process, and enhance the overall production yield. The utility model is easy to operate, has a short test time, is easy to master, has accurate measurement results, small errors, low costs, and strong compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the snake-shaped edge detection device for the pole piece in the utility model;

[0029] Figure 2 is Figure 1 a partial enlarged view of part A in

[0030] wherein, the reference numerals include:

[0031] detection table 1; tabletop 11; fixing member 2; bottom plate 21; connecting plate 22; top plate 23; pressing plate 24; screw 25; operating part 251; limiting rod 26; slide rail 31; slider 32; sliding part 321; main body part 322; scale 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will describe the detailed embodiments of the utility model in detail.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the claims and the specification should have the ordinary meanings understood by those with ordinary skills in the technical field to which the utility model belongs.

[0034] The "including" or similar words used in the specification and claims of the utility model patent application mean that the objects appearing before "including" cover the objects listed after "including" or their equivalents, and do not exclude other objects.

[0035] The numerical values mentioned in the utility model include all numerical values that increase one unit by one unit from low to high. Here, it is assumed that there is an interval of at least two units between any lower value and higher value. For example, if it is said that a component amount or a physical quantity ranges from 1 to 100, 10 to 90 is better, and 20 to 80 is the best, it means that numerical values such as 5 to 95, 14 to 76, 23 to 67, 32 to 58, 41 to 49, etc. have been clearly listed in this specification; for numerical values less than 1, 0.0001, 0.001, 0.01, or 0.1 is considered a more appropriate unit. The foregoing examples are only for illustrative purposes. In fact, all numerical combinations between the lowest value and the highest value listed are considered to be clearly listed in this specification in a similar manner.

[0036] Embodiment 1

[0037] As Figure 1 shown, this embodiment provides a serpentine edge detection device for a pole piece, including:

[0038] A detection table 1, and the detection table 1 provides a flat tabletop 11 for spreading the pole piece to be detected;

[0039] A fixing member 2, and the fixing member 2 is fixedly arranged at the upper left corner of the tabletop 11; As Figure 2 shown, the fixing member 2 includes: a bottom plate 21 fixedly arranged at the upper left corner of the tabletop 11, a connecting plate 22 fixedly arranged at the upper top end of the bottom plate 21, a top plate 23 fixedly arranged at the top end of the connecting plate 22, a pressing plate 24 slidably arranged between the bottom plate 21 and the top plate 23, a screw rod 25, and four limiting rods 26;

[0040] Wherein, a threaded hole is penetratedly opened at the center of the top plate 23, a bearing is arranged at a corresponding position on the top surface of the pressing plate 24, the screw rod 25 is in threaded fit with the threaded hole, the bottom end of the screw rod 25 is in rotational fit with the bearing, the top end of the screw rod 25 is higher than the top surface of the top plate 23, and an operating portion 251 is fixedly arranged at the top end of the screw rod 25; Limiting holes are respectively opened at the four corners of the top plate 23, and the four limiting rods 26 are respectively slidably arranged in the four limiting holes, and the bottom ends of the four limiting rods 26 are respectively fixedly connected to the four corners of the top surface of the pressing plate 24;

[0041] Thus, the operating portion 251 is used to operate the screw rod 25 to rotate, the screw rod 25 is used to drive the pressing plate 24 to approach or move away from the bottom plate 21, the four limiting rods 26 are used to stabilize the sliding of the pressing plate 24 and limit the maximum sliding distance of the pressing plate 24, and the pressing plate 24 and the bottom plate 21 are used to clamp the upper left corner of the pole piece to be detected;

[0042] A slide rail 31, and the slide rail 31 is horizontally arranged on the right side of the fixing member 2;

[0043] A slider 32, and the slider 32 is slidably arranged on the slide rail 31. The slider 32 includes: a sliding portion 321 slidably arranged on the slide rail 31, and a main body portion 322 fixedly arranged at the top end of the sliding portion 321;

[0044] Wherein, the lower part of the main body portion 322 is lower than the lower edge of the slide rail 31;

[0045] Thus, the main body portion 322 is used to simulate the tape running process during the winding process of the pole piece to be detected;

[0046] and a scale 4, the scale 4 is vertically arranged on the right side of the slide rail 31, the zero scale line of the scale 4 is on the same horizontal line as the lower edge of the slide rail 31, and the scale 4 is used to read the displacement of the right side of the pole piece to be detected during the simulated tape running process.

[0047] In a preferred embodiment, to avoid crushing the pole piece and at the same time increase the friction during clamping to prevent slipping, a first rubber buffer layer is arranged on the top surface of the bottom plate 21.

[0048] In a preferred embodiment, to avoid crushing the pole piece and at the same time increase the friction during clamping to prevent slipping, a second rubber buffer layer is arranged on the bottom surface of the pressing plate 24.

[0049] In a preferred embodiment, the slider 32 is driven by a linear drive mechanism.

[0050] In a more preferred embodiment, the slide rail 31 is a linear drive mechanism such as an electric push rod to drive the slider 32 to slide.

[0051] In another more preferred embodiment, a rotational drive mechanism such as a motor is arranged on the slide rail 31, and the rotational drive mechanism drives the slider 32 to slide on the slide rail 31 through a gear-rack pair drive mechanism or a lead screw-nut pair drive mechanism.

[0052] The working principle of the pole piece serpentine edge detection device is as follows:

[0053] Cut a pole piece with a fixed length (for example: 100 cm), spread the pole piece on the tabletop 11, operate the operation part 251, and drive the pressing plate 24 to approach the bottom plate 21 by rotating the screw rod 25 until the pressing plate 24 and the bottom plate 21 clamp the upper left corner of the pole piece;

[0054] At this time, one side of the material area of the pole piece is arranged parallel to the slide rail 31, and the sliding speed of the slider 32 is set proportionally (the sliding speed of the slider 32 = the winding speed during the winding process ÷ the length of the pole piece during the winding process × the aforementioned fixed length) to simulate the tape running process during the winding process;

[0055] During this process, the right side of the pole piece will shift downward under the action of the slider 32;

[0056] After the simulated tape running process ends, by reading the reading of the right side of the pole piece on the scale 4 at this time, it can be judged whether the pole piece has a serpentine edge that will affect the winding process.

[0057] In summary, the present utility model can simulate the tape running process during the winding process, identify the abnormal snake-shaped edges of the pole piece in advance, reduce the waste of pole pieces, improve the quality and efficiency of the winding process, and enhance the overall production yield. The present utility model is easy to operate, has a short test time, is easy to get started, has accurate measurement results, small errors, low costs, and strong compatibility.

[0058] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the specification and illustrated content of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pole piece serpentine edge detection device, characterized in that Comprising: A detection table (1), the detection table (1) providing a flat tabletop (11) for spreading the electrode sheet to be detected; A fixing member (2), the fixing member (2) being fixedly arranged at the upper left corner of the tabletop (11), the fixing member (2) being used for fixing the upper left corner of the electrode sheet to be detected; A slide rail (31), the slide rail (31) being horizontally arranged on the right side of the fixing member (2); A slider (32), the slider (32) being slidably arranged on the slide rail (31), the slider (32) being used for simulating the tape running process during the winding of the electrode sheet to be detected; And a scale (4), the scale (4) being vertically arranged on the right side of the slide rail (31), the zero scale line of the scale (4) being on the same horizontal line as the lower edge of the slide rail (31), the scale (4) being used for reading the displacement of the right side of the electrode sheet to be detected during the simulated tape running process.

2. The pole piece serpentine edge detection device according to claim 1, wherein The fixing member (2) includes: a bottom plate (21) fixedly arranged at the upper left corner of the tabletop (11), a connecting plate (22) fixedly arranged at the upper top end of the bottom plate (21), a top plate (23) fixedly arranged at the top end of the connecting plate (22), and a pressing plate (24) slidably arranged between the bottom plate (21) and the top plate (23); wherein, The pressing plate (24) and the bottom plate (21) are used for clamping the upper left corner of the electrode sheet to be detected.

3. The pole piece serpentine edge detection device according to claim 2, wherein A first rubber buffer layer is arranged on the top surface of the bottom plate (21).

4. The pole piece serpentine edge detection device according to claim 2, wherein A second rubber buffer layer is arranged on the bottom surface of the pressing plate (24).

5. The pole piece serpentine edge detection device according to claim 2, characterized in that, The fixing member (2) further includes: a screw (25); wherein, A threaded hole is penetrated and opened on the top plate (23), and a bearing is arranged at a corresponding position on the top surface of the pressing plate (24); The screw (25) is in threaded cooperation with the threaded hole, the bottom end of the screw (25) is in rotational cooperation with the bearing, the top end of the screw (25) is higher than the top surface of the top plate (23), and the screw (25) is used for driving the pressing plate (24) to approach or move away from the bottom plate (21).

6. The pole piece serpentine edge detection device according to claim 5, wherein An operation part (251) is fixedly arranged at the top end of the screw (25), and the operation part (251) is used for operating the rotation of the screw (25).

7. The pole piece serpentine edge detection device according to claim 5, characterized in that, The threaded hole is opened at the center of the top plate (23).

8. The pole piece serpentine edge detection device according to claim 7, characterized in that, The fixing member (2) further includes: four limiting rods (26); wherein, Four limiting holes are respectively opened at the four corners of the top plate (23), the four limiting rods (26) are respectively slidably arranged in the four limiting holes, the bottom ends of the four limiting rods (26) are respectively fixedly connected to the four corners of the top surface of the pressing plate (24), and the four limiting rods (26) are used for stabilizing the sliding of the pressing plate (24) and at the same time limiting the maximum sliding distance of the pressing plate (24).

9. The pole piece serpentine edge detection device according to claim 1, characterized in that The slider (32) includes: a sliding part (321) slidably arranged on the slide rail (31), and a main body part (322) fixedly arranged at the top end of the sliding part (321); wherein, The lower part of the main body (322) is lower than the lower edge of the slide rail (31), and the main body (322) is used to simulate the tape running process during the winding of the pole piece to be detected.

10. The pole piece serpentine edge detection device according to claim 1, characterized in that, The slider (32) is driven by a linear drive mechanism.

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