A current collector coating peeling tool

Abstract

This utility model provides a stripping fixture for current collector coatings, relating to the field of current collector coatings. It includes a working platform with a stainless steel test plate fixedly connected to its top surface. A movable stripping plate is slidably connected to the top surface of the working platform. Two fixing mechanisms are provided on the exterior of the stainless steel test plate. A bracket is fixedly connected to the top surface of the working platform, and an adjusting screw is rotatably connected to the end of the bracket. An internally threaded sleeve is threaded onto the outer surface of the adjusting screw, and an L-value color difference tester is fixedly installed at the bottom end of the internally threaded sleeve. This application optimizes and modifies existing stripping testing instruments by setting up components such as a stainless steel test plate, a movable stripping plate, an L-value color difference tester, and fixing mechanisms. This effectively improves the stripping effect and force quantification accuracy of the device, facilitating quality control and color management of the stripping process and meeting stringent system control requirements.

Description

Technical Field

[0001] This utility model relates to a coating peeling tool, specifically a current collector coating peeling tool, belonging to the field of current collector coating technology. Background Technology

[0002] The current collector coating is a coating applied to the current collector, a crucial component of a battery. It primarily collects the weak current generated by the active materials on the positive and negative electrodes. Common current collectors are aluminum foil and copper foil. Carbon-coated aluminum foil has gained widespread use in recent years due to its advantages, such as improved electrode adhesion and reduced internal resistance of the cell. It is mainly used as the current collector in battery cells, onto which active materials are coated to form the cell. The processing technology for carbon-coated aluminum foil utilizes gravure roller transfer coating to coat the aluminum or copper foil surface with conductive agents and other main substances. The typical coating thickness is 1 μm on one side, with a coating amount of 0.5 g / m² on one side. Due to its thin coating thickness, testing its peel strength has always been a challenge in the industry.

[0003] Existing conventional technologies have the following disadvantages: I. Common testing methods are not suitable for peel testing of thin coatings. The peel force of the carbon coating layer is difficult to quantify accurately, which will lead to the failure of product quality control and make it difficult to meet the stringent system control requirements. Second, the test values ​​of the equipment cannot represent the peel force of the coating, but only the peel force between the tape and the coating.

[0004] To address the shortcomings of the conventional techniques described above, we provide a current collector coating stripping tool to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a current collector coating peeling tool to solve the above-mentioned problems, thereby addressing the issues of poor peeling effect and difficulty in accurately quantifying peeling force in conventional coating peeling tests in the prior art.

[0006] This utility model is achieved through the following technical solution: a current collector coating peeling fixture, including a working platform, a stainless steel test plate fixedly connected to the top surface of the working platform, a movable peeling plate slidably connected to the top surface of the working platform, two fixing mechanisms provided on the outside of the stainless steel test plate, a bracket fixedly connected to the top surface of the working platform, an adjusting screw rotatably connected to the end of the bracket, an internal threaded sleeve threaded to the outer surface of the adjusting screw, an L-value color difference tester fixedly installed at the bottom end of the internal threaded sleeve, and the fixing mechanism including two support rods fixed to the top surface of the working platform, each support rod having a limit post slidably connected to its end.

[0007] Preferably, the top surface of the work platform is provided with an insertion hole adapted to the limiting post, and each limiting post penetrates the stainless steel test plate and is slidably connected to the stainless steel test plate. The limiting post plays the role of limiting and fixing the stainless steel test plate.

[0008] Preferably, the fixing mechanism further includes a crossbar, the two ends of which are fixedly connected to two limiting posts, and the crossbar facilitates the operator to control the limiting posts.

[0009] Preferably, a servo motor is fixedly mounted on the outside of the bracket, and one end of the adjusting screw is fixedly connected to the output shaft of the servo motor, with the servo motor providing power for the rotation of the adjusting screw.

[0010] Preferably, a peeling screw is rotatably connected inside the working platform, and a second servo motor is fixedly installed outside the working platform. The peeling screw is fixedly connected to the output shaft of the second servo motor, and the second servo motor provides power for the rotation of the peeling screw.

[0011] Preferably, a slider is fixedly connected to the bottom surface of the movable peeling plate. The slider slides in a groove opened inside the working platform. The peeling screw passes through the slider and is threadedly connected to the slider. The slider drives the movable peeling plate to move.

[0012] Preferably, a connecting plate is fixedly connected to the top surface of the movable peeling plate, and a fixing clip is fixedly installed at the end of the connecting plate, the fixing clip serving to fix the end of the peeling tape.

[0013] Preferably, a peeling tester is fixedly installed on the top surface of the work platform, a torque sensor is fixedly installed inside the work platform, a carbon-coated aluminum foil to be tested is adhered to the top surface of the stainless steel test plate, a peeling tape is adhered to the top surface of the carbon-coated aluminum foil to be tested, and the torque sensor can monitor the change in torque during the peeling process in real time.

[0014] This utility model provides a current collector coating peeling tool, which has the following beneficial effects: 1. This application optimizes and modifies existing peel testing instruments by setting up components such as stainless steel test plates, moving peel plates, L-value color difference testers, and fixing mechanisms. By combining with a colorimeter, products and tapes are tested simultaneously before and after peeling. The change in colorimeter values ​​is used to accurately quantify the peel test values, effectively improving the peeling effect and strength quantification accuracy of the device. This facilitates quality control and color management of the peeling process, meeting stringent system control requirements.

[0015] 2. This application utilizes components such as support rods, limiting posts, connecting plates, and fixing clamps. The support rods and limiting posts facilitate the fixation of the stainless steel test plate by the operator, while the connecting plate and fixing clamps facilitate the fixation of the peeling tape. The peeling screw and servo motor drive the peeling tape to peel the coating off the surface of the carbon-coated aluminum foil to be tested, effectively improving the peeling effect of the device and enhancing the ease of operation of the peeling operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the fixing mechanism of this utility model; Figure 4 This is a partial structural schematic diagram of the present invention.

[0017] [Explanation of Key Component Symbols] 1. Working platform; 2. Stainless steel test plate; 3. Movable peeling plate; 4. Fixing mechanism; 401. Support rod; 402. Limiting post; 403. Crossbar; 5. Bracket; 6. Adjusting screw; 7. Internal threaded sleeve; 8. L-value color difference tester; 9. Servo motor one; 10. Peeling screw; 11. Servo motor two; 12. Slider; 13. Connecting plate; 14. Fixing clamp; 15. Peeling tester; 16. Torque sensor; 17. Carbon-coated aluminum foil to be tested; 18. Peeling tape. Detailed Implementation

[0018] This utility model provides a current collector coating stripping tool.

[0019] Example 1;

[0020] Please see Figure 1 and Figure 2 The device includes a work platform 1, the outer surface of which has multiple evenly distributed fixing plates with fixing holes to facilitate the worker to fix the work platform 1 in a suitable position during installation, thus facilitating the use of the device. The structural components shown in the accompanying drawings of this application are all illustrative examples. The specific implementation should be adapted and optimized based on the functional requirements, assembly conditions and process limitations in the actual application scenario, including structural parameters, size specifications and connection methods.

[0021] Please see Figure 1 , Figure 2 and Figure 3A stainless steel test plate 2 is fixedly connected to the top surface of the work platform 1. A carbon-coated aluminum foil 17 to be tested is adhered to the top surface of the stainless steel test plate 2. A release tape 18 is adhered to the top surface of the carbon-coated aluminum foil 17. The carbon-coated aluminum foil 17 is the current collector to be tested. An active coating material is adhered to its top surface by an adhesive. The release tape 18 is transparent or made of 3M material. The adhesion between the release tape 18 and the coating of the current collector is greater than the adhesion between the current collector and the material coating layer and less than the adhesion between the carbon-coated aluminum foil 17 and the surface of the stainless steel test plate 2. This allows the release tape 18 to peel off the coating of the current collector during the movement of the current collector, thereby achieving the separation of the material layer from the current collector.

[0022] Please refer to it again. Figure 1 and Figure 2 A movable peeling plate 3 is slidably connected to the top surface of the working platform 1. A connecting plate 13 is fixedly connected to the top surface of the movable peeling plate 3. A fixing clamp 14 is fixedly installed at the end of the connecting plate 13. The connecting plate 13 provides stable support for the fixing clamp 14. The end of the fixing clamp 14 has a fine toothed interlocking structure, which can stably clamp the end of the peeling tape 18. When the fixing clamp 14 clamps the peeling tape 18, the movable peeling plate 3 can slide and drive the fixing clamp 14 to move through the connecting plate 13, so that the peeling tape 18 can peel off the coating material on the surface of the carbon-coated aluminum foil 17 to be tested.

[0023] The peeling screw 10 is rotatably connected inside the working platform 1, and a servo motor 11 is fixedly installed outside the working platform 1. The peeling screw 10 is fixedly connected to the output shaft of the servo motor 11. When the servo motor 11 is started, it can drive the peeling screw 10 to rotate inside the working platform 1. The rotation of the peeling screw 10 can drive the slider 12 to slide inside the slide groove through the thread design, thereby driving the moving peeling plate 3 to move on the top surface of the working platform 1, providing power for the peeling test of the equipment.

[0024] A slider 12 is fixedly connected to the bottom surface of the movable peeling plate 3. The slider 12 slides in a groove opened inside the working platform 1. The peeling screw 10 passes through the slider 12 and is threadedly connected to the slider 12. The rotation of the peeling screw 10 can drive the slider 12 to slide in the groove opened on the top surface of the working platform 1. Both the groove and the slider 12 are convex designs, which can make the slider 12 slide stably inside the groove and prevent the slider 12 from tilting during the sliding process, thus affecting the clamping stability of the fixed clamp 14 on the end of the peeling tape 18.

[0025] A peel testing machine 15 is fixedly installed on the top surface of the working platform 1. A torque sensor 16 is fixedly installed inside the working platform 1. The peel testing machine 15 is a BLD-200H model, which can control the operation of various electrical components in the setup. The torque sensor 16 can monitor the moving distance of the peeling tape 18 in real time and upload the data to the peel testing machine 15. The peel testing machine 15 records and measures the force value change during the peeling process based on the data transmitted by the torque sensor 16 and the L-value color difference tester 8, and thereby obtains the peel strength of the material, thus effectively improving the accuracy of the device in quantifying the peeling force.

[0026] Example 2;

[0027] Please see Figure 1 and Figure 4 The top surface of the working platform 1 is fixedly connected to a bracket 5, and an adjusting screw 6 is rotatably connected to the end of the bracket 5. A servo motor 9 is fixedly installed on the outside of the bracket 5. One end of the adjusting screw 6 is fixedly connected to the output shaft of the servo motor 9. The bracket 5 adopts a tripod design, which has high stability and can provide stable support for the adjusting screw 6. When the servo motor 9 is started, it can drive the adjusting screw 6 to rotate, providing power for the position adjustment of the L-value color difference tester 8. The L-value color difference tester 8, servo motor 9, servo motor 11, peel tester 15 and torque sensor 16 are all existing technologies, and will not be described in detail in this application.

[0028] The outer surface of the adjusting screw 6 is threaded with an internally threaded sleeve 7. An L-value color difference tester 8 is fixedly installed at the bottom of the internally threaded sleeve 7. Rotating the adjusting screw 6 can drive the internally threaded sleeve 7 to move on its surface. The movement of the internally threaded sleeve 7 can drive the L-value color difference tester 8 to move, thereby adjusting the position of the L-value color difference tester 8 so that the L-value color difference tester 8 can detect the sample to be tested at different positions. The L-value color difference tester 8 consists of an illumination system (such as a standard light source), a detection system (such as an integrating sphere or a ring illumination structure), and a data system. It can simulate the reflected or transmitted light of the measured object at different viewing angles (such as 0 / 45, d / 8). During measurement, the instrument compares the measured color parameters with the standard sample and outputs color difference data such as ΔE, ΔL, Δa, and Δb for quality control and color management. After the carbon foil was peeled off, a portion of its surface was removed, and the color difference tester value increased from 46.1 to 46.9. The color of the tape after peeling turned black, decreasing from 87.78 to 77.7. These values ​​show that the peeling technology in this application can more effectively improve the accuracy and effect of the peeling operation compared to conventional peeling technology.

[0029] Example 3;

[0030] Please see Figure 1 , Figure 2 and Figure 3The stainless steel test plate 2 is externally equipped with two fixing mechanisms 4. The fixing mechanism 4 includes two support rods 401 fixed on the top surface of the work platform 1. Each support rod 401 is slidably connected to a limit post 402 at its end. Through the setting of the two fixing mechanisms 4, the stainless steel test plate 2 can be stably limited and fixed, so that the stainless steel test plate 2 remains stable during the peel test and avoids the stainless steel test plate 2 from moving and affecting the peeling effect of the peeling tape 18 on the top coating of the carbon-coated aluminum foil 17 to be tested.

[0031] The top surface of the work platform 1 is provided with insertion holes that are compatible with the limiting posts 402. Each limiting post 402 passes through the stainless steel test plate 2 and is slidably connected to the stainless steel test plate 2. The inside of the stainless steel test plate 2 is also provided with insertion holes that are compatible with the limiting posts 402. When the limiting post 402 is inserted into the insertion hole on the top surface of the work platform 1, it can limit the stainless steel test plate 2 and fix the stainless steel test plate 2 on the top surface of the work platform 1. After the test is completed, the staff can pull out the limiting post 402 from the stainless steel test plate 2 to cancel the limitation on the stainless steel test plate 2 and make it convenient to take out the stainless steel test plate 2.

[0032] The fixing mechanism 4 also includes a crossbar 403, with both ends of the crossbar 403 fixedly connected to two limiting posts 402. The top surface of the crossbar 403 has a handle, which allows the operator to operate the crossbar 403 to insert the limiting post 402 into the corresponding socket or pull the limiting post 402 out of the socket, facilitating the peeling test.

[0033] Working principle: In use, the operator first attaches the aluminum foil 17 to be tested onto the stainless steel test plate 2, then attaches the release tape 18 to the aluminum foil 17, pulls the two crossbars 403 to place the stainless steel test plate 2 in a suitable position on the work platform 1, and then releases the crossbars 403. At this time, the limiting post 402 will descend under the action of gravity. When the limiting post 402 is inserted into the socket, the stainless steel test plate 2 can be fixed. Then the operator starts the servo motor 9 to control the L-value color difference tester 8 to move to a suitable detection position. Then the operator starts the servo motor 11, which drives the peeling screw 10 to rotate. The rotation of the peeling screw 10 drives the slider 12 to slide in the groove. The internal movement of the slider 12 drives the moving peeling plate 3 to move. The moving peeling plate 3 drives the fixing clamp 14 to move through the connecting plate 13. After the fixing clamp 14 moves to the appropriate position, the operator clamps and fixes one end of the peeling tape 18 in the fixing clamp 14. Then, the servo motor 11 is controlled to reverse. The reverse rotation of the servo motor 11 drives the moving peeling plate 3 to move in the opposite direction. The movement of the moving peeling plate 3 can drive the peeling tape 18 to peel the coating from the surface of the carbon-coated aluminum foil 17 to be tested. During the peeling process, the torque sensor 16 can monitor the torque change in real time. The L-value color difference tester 8 can quantify the peeling test value by measuring the color difference change of the object to be tested, which effectively improves the quantitative accuracy of the peeling test.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A current collector coating peeling tool comprising a work platform (1), characterized in that: A stainless steel test plate (2) is fixedly connected to the top surface of the work platform (1), and a movable peeling plate (3) is slidably connected to the top surface of the work platform (1). Two fixing mechanisms (4) are provided on the outside of the stainless steel test plate (2). A bracket (5) is fixedly connected to the top surface of the work platform (1). An adjusting screw (6) is rotatably connected to the end of the bracket (5). An internal thread sleeve (7) is threaded to the outer surface of the adjusting screw (6). An L-value color difference tester (8) is fixedly installed at the bottom end of the internal thread sleeve (7). The fixing mechanism (4) includes two support rods (401) fixed on the top surface of the work platform (1), and each support rod (401) is slidably connected to a limit post (402) at its end.

2. The current collector coating peeling tooling of claim 1, wherein: The top surface of the work platform (1) is provided with a socket adapted to the limiting post (402), and each limiting post (402) penetrates the stainless steel test plate (2) and is slidably connected to the stainless steel test plate (2).

3. The current collector coating peeling tool according to claim 1, characterized in that: The fixing mechanism (4) also includes a crossbar (403), the two ends of which are fixedly connected to two limiting posts (402).

4. The current collector coating peeling tooling of claim 1, wherein: The bracket (5) is externally fixedly mounted with a servo motor (9), and one end of the adjusting screw (6) is fixedly connected to the output shaft of the servo motor (9).

5. The current collector coating peeling tooling of claim 1, wherein: The work platform (1) is internally connected to a peeling screw (10), and the work platform (1) is externally fixedly installed with a servo motor (11). The peeling screw (10) is fixedly connected to the output shaft of the servo motor (11).

6. A current collector coating stripping tool according to claim 5, wherein: The bottom surface of the movable peeling plate (3) is fixedly connected to a slider (12), which slides in a groove opened inside the working platform (1). The peeling screw (10) passes through the slider (12) and is threadedly connected to the slider (12).

7. The current collector coating peeling tooling of claim 1, wherein: The top surface of the movable peeling plate (3) is fixedly connected to a connecting plate (13), and a fixing clip (14) is fixedly installed at the end of the connecting plate (13).

8. The current collector coating peeling tooling of claim 1, wherein: A peel tester (15) is fixedly installed on the top surface of the work platform (1), and a torque sensor (16) is fixedly installed inside the work platform (1). A carbon-coated aluminum foil (17) to be tested is adhered to the top surface of the stainless steel test plate (2), and a peeling tape (18) is adhered to the top surface of the carbon-coated aluminum foil (17).

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