A composite aluminum foil current collector coating thickness detection device

Abstract

The application discloses a kind of composite aluminum foil current collector film coating thickness detection devices, it is related to laser thickness measurement technical field;Including detection conveying piece, drive winding piece is installed on the detection conveying piece, the drive winding piece is used to winding composite aluminum foil;The detection conveying piece is used to adapt compensation composite aluminum foil conveying line;Laser thickness measurement piece is installed on the detection conveying piece;The laser thickness measurement piece is used to laser test composite aluminum foil thickness;Pressing piece is installed on the laser thickness measurement piece;The pressing piece is used to press composite aluminum foil;With jamming test piece, it is convenient to control measurement position, directly prompt staff, can be used to avoid aluminum foil welding spot or the position of existing defect, ensure the test accuracy of testing;To solve the problem that current composite aluminum foil current collector film coating thickness detection device is not convenient for controlling measurement position, it is not convenient for not stopping machine multiple aluminum foil thickness measurement.

Description

Technical Field

[0001] This invention relates to the field of laser thickness measurement technology, specifically to a composite aluminum foil current collector coating thickness detection device. Background Technology

[0002] Composite aluminum foil current collectors are a new type of lithium battery material. A polymer support layer is used between the two conductive metal layers to improve battery safety, energy density, and other performance characteristics. The thickness of the composite aluminum foil current collector is crucial in its preparation, directly affecting its performance. Current composite aluminum foil current collector coating thickness testing devices typically require manual sampling and weighing, which is inconvenient for non-destructive testing on the production line. Furthermore, sample extraction can cause production line stoppages, hindering continuous automatic testing. Traditional single-piece aluminum foil testing methods have limited sampling locations, and multi-piece thickness measurements are greatly affected by the flatness of the aluminum foil, reducing testing accuracy and resulting in inaccurate data. It also makes it difficult to control the measurement location. Measuring aluminum foil solder joints or defective areas also affects accuracy and can easily damage the aluminum foil, increasing the defect rate.

[0003] Therefore, we propose a composite aluminum foil current collector coating thickness detection device. Summary of the Invention

[0004] The purpose of this invention is to provide a composite aluminum foil current collector coating thickness detection device to solve the problems mentioned in the background art, such as the inconvenience of controlling the measurement position and the inconvenience of measuring the thickness of multiple aluminum foils without stopping the machine.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a composite aluminum foil current collector coating thickness detection device, comprising a detection conveyor, a drive winding component mounted on the detection conveyor, the drive winding component being used to wind composite aluminum foil; the detection conveyor is used to adapt to and compensate for the composite aluminum foil conveying line; a laser thickness gauge is mounted on the detection conveyor; the laser thickness gauge is used to laser test the thickness of the composite aluminum foil; a pressing component is mounted on the laser thickness gauge; the pressing component is used to press the composite aluminum foil; a tight bulge test component is mounted on the pressing component; the tight bulge test component is used to test the winding effect of the composite aluminum foil; a negative pressure component is mounted on the detection conveyor; two jamming test components are mounted at the bottom of the negative pressure component; the jamming test components are used to test the surface smoothness of the composite aluminum foil; the detection conveyor includes: a conveying mounting plate and a lifting slider, two lifting sliders being slidably mounted on the conveying mounting plate; two rows of through holes are formed on the conveying mounting plate.

[0006] Preferably, the detection conveyor further includes: a floating roller and a fixed roller, with the floating roller rotatably mounted on each of the two lifting sliders; and two fixed rollers rotatably mounted on the conveyor mounting plate.

[0007] Preferably, the driving winding component includes: a drive motor, a rotary disk, winding rollers, a support disk, and indicator lights. The drive motor is fixedly mounted on the conveying mounting plate; the output shaft of the drive motor passes through the conveying mounting plate; a rotary disk is fixedly mounted on the output shaft of the drive motor; four winding rollers are rotatably mounted on the rotary disk; a support disk is fixedly mounted on the rotary disk; the top surface of the support disk is tangent to two winding rollers on the same side; and indicator lights are fixedly mounted on the support disk.

[0008] Preferably, the laser thickness measuring device includes: a support frame, a thickness laser rangefinder, and a deviation indicator light. The support frame is fixedly installed on the side of the conveyor mounting plate by two bolts. The thickness laser rangefinder is fixedly installed on the support frame. The thickness laser rangefinder is used for laser measurement of the thickness of the composite aluminum foil. A deviation indicator light is fixedly installed on the front side of the support frame. The thickness laser rangefinder is located above the support plate.

[0009] Preferably, the pressing component includes: a pressing frame, a pressing electromagnet, a test block, an elastic rubber strip, and a connecting wire. The pressing frame is slidably mounted on a support frame. The pressing electromagnet is fixedly mounted on the pressing frame. The pressing electromagnet is used to magnetically attract the support frame. A spring is provided between the pressing frame and the support frame, and the spring between the pressing frame and the support frame is located outside the pressing electromagnet. The test block is fixedly mounted on the pressing frame. An elastic rubber strip is fixedly mounted on the inner side of the test block, and a connecting wire is fixedly mounted on the side of the elastic rubber strip.

[0010] Preferably, the compact bulge test piece includes: a bulge test shell, a closed corrugated tube, and a tension spring. The closed corrugated tube is fixedly installed on the bulge test shell. The bulge test shell is slidably installed on a support frame. The top end of the closed corrugated tube is fixedly installed on the bottom of the thickness laser rangefinder. A tension spring is sleeved on the outside of the bulge test shell. The two ends of the tension spring are connected between the bulge test shell and the pressing frame. The bulge test shell is used to adhere aluminum foil.

[0011] Preferably, the compact bulge test piece further includes: a contact ring, wherein the contact ring is sleeved on the outside of the bulge test shell and the contact ring is in contact with the contact wire; the contact ring, the contact wire and the deviation indicator light are connected in series with a power supply.

[0012] Preferably, the negative pressure component includes: a negative pressure box, a bonding rubber ring, and a negative pressure fan. The negative pressure box is fixedly installed on the side of the conveying mounting plate; a bonding rubber ring is fixedly installed on the inner side of the negative pressure box; the bonding rubber ring has a groove in the middle; two bonding rubber rings are used to bond the two sides of the aluminum foil; the negative pressure box has a hollow structure; a negative pressure fan is fixedly installed on the side of the negative pressure box; the negative pressure fan is used for suction.

[0013] Preferably, the jamming test piece includes: a jamming mounting slot, a pressing slider, and a time delay switch. Two jamming mounting slots are fixedly installed at the bottom of the negative pressure box. The two jamming mounting slots have the same structure. A pressing slider is slidably mounted on the jamming mounting slot. A time delay switch is fixedly mounted on the pressing slider, and the end of the time delay switch is attached to the inner side of the jamming mounting slot. The jamming mounting slot is electrically connected to an indicator light.

[0014] Preferably, the jamming test piece further includes: a V-shaped spring, a bonding spring, and a bonding fiber cloth. Two V-shaped springs are fixedly installed on the pressing slider. The ends of the two V-shaped springs are respectively connected to the inner side of the jamming mounting groove. A bonding spring is fixedly installed at the bottom of the pressing slider. A bonding fiber cloth is fixedly installed at the bottom of the bonding spring, and the bonding fiber cloth is used to bond to the surface of the aluminum foil.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention utilizes a laser thickness gauge for online inspection, and in conjunction with a drive winding component, enables multi-layer inspection of aluminum foil in a single winding process. This reduces errors caused by local sampling, resulting in more accurate results. It also helps eliminate errors when laser-measuring thinner aluminum foil. With the inspection conveyor, sampling can be performed during aluminum foil transport without stopping the machine, without affecting normal winding and transport. The use of floating rollers allows for lifting and floating adaptation, resulting in a more rational structure and preventing the aluminum foil from being torn.

[0017] The use of a clamping test piece facilitates control of the measurement position and directly prompts the operator. It can be used to indicate where to avoid aluminum foil solder joints or defective locations, ensuring the accuracy of the test. At the same time, it can prevent damage to the aluminum foil in contact with the solder joints or defective locations during winding or thickness measurement, as well as prevent breakage at defective locations. This structure can reduce the defect rate and ensure accurate thickness measurement.

[0018] Using a tight bulge test piece in conjunction with a pressing component can prevent gaps between aluminum foils after the pressing frame moves down to adhere the foil, which could result in substandard thickness accuracy due to poor aluminum foil surface flatness or insufficient tightness during foil winding. This ensures the flatness of the multi-layer aluminum foil during measurement and accurate sampling position. It also reduces interference caused by wear on the bottom of the bulge test shell. The bulge test shell can be used for inspection before each thickness measurement, ensuring the accuracy of the recorded data. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the composite aluminum foil current collector coating thickness detection device after the aluminum foil has been installed, according to the present invention.

[0020] Figure 2This is a schematic diagram of the overall structure of a composite aluminum foil current collector coating thickness detection device according to the present invention;

[0021] Figure 3 This is a cross-sectional view of the internal structure of a composite aluminum foil current collector coating thickness detection device according to the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the detection conveyor component of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the drive winding component of the present invention;

[0024] Figure 6 This is a schematic diagram of the laser thickness measuring component structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the pressing component structure of the present invention;

[0026] Figure 8 For the present invention Figure 3 Enlarged view of the structure of region B in the middle;

[0027] Figure 9 For the present invention Figure 8 Enlarged view of the structure of region C in the middle;

[0028] Figure 10 This is a schematic diagram of the negative pressure component structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the stuck test piece structure of the present invention.

[0030] In the diagram: 1. Inspection conveyor; 101. Conveyor mounting plate; 102. Lifting slider; 103. Floating roller; 104. Fixed roller; 2. Drive winding component; 201. Drive motor; 202. Rotary disk; 203. Winding roller; 204. Support disk; 205. Indicator light; 3. Laser thickness gauge; 301. Support frame; 302. Thickness laser rangefinder; 303. Deviation indicator light; 4. Pressing component; 401. Pressing frame; 402. Pressing electromagnet; 403. Test block ; 4031, Elastic rubber strip; 4032, Connecting wire; 5, Tight bulge test piece; 501, Bulge test shell; 502, Enclosed corrugated pipe; 503, Tension spring; 504, Connecting ring; 6, Negative pressure component; 601, Negative pressure box; 6011, Fitting rubber ring; 602, Negative pressure fan; 7, Sticking test piece; 701, Sticking mounting slot; 702, Pressing slider; 703, Delay switch; 704, V-shaped spring; 705, Fitting spring; 706, Fitting fiber cloth. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figures 1 to 11 As shown:

[0033] This invention provides a technical solution: a composite aluminum foil current collector coating thickness detection device, comprising a detection conveying component 1, a driving winding component 2 mounted on the detection conveying component 1 for winding composite aluminum foil; the detection conveying component 1 is used to adapt and compensate for the composite aluminum foil conveying line; a laser thickness gauge 3 is mounted on the detection conveying component 1 for laser testing of the composite aluminum foil thickness; a pressing component 4 is mounted on the laser thickness gauge 3 for pressing the composite aluminum foil; and a compaction bulge test component 5 is mounted on the pressing component 4. The solid bulge test piece 5 is used to test the winding effect of composite aluminum foil; the test conveyor 1 is equipped with a negative pressure component 6; two jamming test pieces 7 are installed at the bottom of the negative pressure component 6; the jamming test pieces 7 are used to test the surface smoothness of the composite aluminum foil; the test conveyor 1 includes: a conveyor mounting plate 101 and a lifting slider 102, two lifting sliders 102 are slidably installed on the conveyor mounting plate 101; the conveyor mounting plate 101 has two rows of through holes, and the two rows of through holes at the bottom of the conveyor mounting plate 101 are used to pass bolts for installation on the composite aluminum foil production line.

[0034] The detection conveyor 1 includes: a floating roller 103 and a fixed roller 104, with the floating roller 103 rotatably mounted on each of the two lifting sliders 102; two fixed rollers 104 are rotatably mounted on the conveyor mounting plate 101; the drive winding component 2 includes: a drive motor 201, a rotating disk 202, winding rollers 203, a support disk 204, and an indicator light 205; the drive motor 201 is fixedly mounted on the conveyor mounting plate 101; the output shaft of the drive motor 201 passes through the conveyor mounting plate 101; the rotating disk 202 is fixedly mounted on the output shaft of the drive motor 201; four winding rollers 203 are rotatably mounted on the rotating disk 202; the rotating disk 202... A support plate 204 is fixedly installed on the support plate 204; the top surface of the support plate 204 is tangent to the two winding rollers 203 on the same side; an indicator light 205 is fixedly installed on the support plate 204; the laser thickness measuring component 3 includes: a support frame 301, a thickness laser rangefinder 302, and a deviation indicator light 303. The support frame 301 is fixedly installed on the side of the conveyor mounting plate 101 by two bolts; the thickness laser rangefinder 302 is fixedly installed on the support frame 301; the thickness laser rangefinder 302 is used for laser measurement of the thickness of the composite aluminum foil; a deviation indicator light 303 is fixedly installed on the front side of the support frame 301; the thickness laser rangefinder 302 is located above the support plate 204 and uses laser... Thickness measuring component 3 enables online detection. Simultaneously, in conjunction with the drive winding component 2, it allows for multi-layer detection of aluminum foil in a single winding, reducing errors from local sampling and resulting in more accurate results. It also helps eliminate errors when laser-measuring thinner aluminum foil. Combined with the detection conveyor component 1, sampling and winding detection can be performed during aluminum foil conveying without stopping the machine, without affecting normal aluminum foil winding and conveying. The floating roller 103 enables lifting and floating adaptation, resulting in a more rational structure, preventing aluminum foil breakage, and enhancing practicality. It ensures online detection while guaranteeing multi-layer thickness measurement, achieving non-destructive thickness measurement, reducing scrap rate, and is located at the bottom of the conveyor mounting plate 101. The two rows of through holes are used to pass through bolts for installation on the composite aluminum foil production line. When the aluminum foil is wound up and shortened in length, it can pull the floating roller 103, which in turn drives the lifting slider 102 to rise for adaptation. Similarly, if one end has an aluminum foil winding structure, the floating roller 103 will also rise for adaptation. The aluminum foil will not be directly torn, and subsequent testing can be carried out quickly. The weight of the floating roller 103 can provide a buffer length for the aluminum foil, which can improve the safety of aluminum foil conveying and measurement. The length of the bulge test shell 501 is measured by the thickness laser rangefinder 302. Since the bottom of the bulge test shell 501 is attached to the aluminum foil, it can more stably reflect the thickness of the aluminum foil.

[0035] The pressing component 4 includes: a pressing frame 401, a pressing electromagnet 402, a test block 403, an elastic rubber strip 4031, and a connecting wire 4032. The pressing frame 401 is slidably mounted on the support frame 301. The pressing electromagnet 402 is fixedly mounted on the pressing frame 401. The pressing electromagnet 402 is used to magnetically attract the support frame 301. A spring is provided between the pressing frame 401 and the support frame 301, and the spring between the pressing frame 401 and the support frame 301 is located outside the pressing electromagnet 402. The test block 403 is fixedly mounted on the pressing frame 401. An elastic rubber strip 4031 is fixedly mounted on the inner side of the test block 403, and the elastic... A connecting wire 4032 is fixedly installed on the side of the rubber strip 4031; the compact bulge test piece 5 includes: a bulge test shell 501, a closed corrugated tube 502, and a tension spring 503. The closed corrugated tube 502 is fixedly installed on the bulge test shell 501; the bulge test shell 501 is slidably installed on the support frame 301; the top end of the closed corrugated tube 502 is fixedly installed on the bottom of the thickness laser rangefinder 302; a tension spring 503 is sleeved on the outside of the bulge test shell 501; the two ends of the tension spring 503 are connected between the bulge test shell 501 and the pressing frame 401; the bulge test shell 501 is used to adhere aluminum foil; the compact bulge test piece 5 also includes: a connecting ring 50. 4. A contact ring 504 is sleeved on the outside of the bulge test housing 501, and the contact ring 504 is in contact with the contact wire 4032. The contact ring 504, the contact wire 4032, and the deviation indicator light 303 are connected in series with a power supply. The use of a tight bulge test piece 5 in conjunction with a pressing piece 4 can prevent the problem of insufficient thickness accuracy caused by poor flatness of the aluminum foil surface or poor tightness during aluminum foil winding, which would result in gaps between aluminum foils after the pressing frame 401 moves down to adhere the aluminum foil. This ensures the flatness of the adhesion of multi-layer aluminum foil during measurement, ensures accurate sampling position, and reduces the impact of the bottom of the bulge test housing 501. Interference caused by wear is addressed by exploiting the unevenness of the detection area due to poor winding tightness or uneven aluminum foil. The bulge test shell 501 can be used to detect this before each thickness measurement, ensuring the accuracy of the recorded data. The bulge test shell 501 will be in contact with the aluminum foil. Once the aluminum foil below the bulge test shell 501 and below the pressing frame 401 is no longer on the same plane, the tension spring 503 will pull the bulge test shell 501 away from the pressing frame 401. At this time, the corresponding electrical contact ring 504 and electrical contact wire 4032 will be misaligned and no longer in contact. The deviation indicator light 303 will also turn off to indicate this. The thickness data at this time is not used as a reference.

[0036] The negative pressure component 6 includes: a negative pressure box 601, a bonding rubber ring 6011, and a negative pressure fan 602. The negative pressure box 601 is fixedly installed on the side of the conveying mounting plate 101. The bonding rubber ring 6011 is fixedly installed inside the negative pressure box 601. The bonding rubber ring 6011 has a groove in the middle. The two bonding rubber rings 6011 are used to bond the two sides of the aluminum foil. The negative pressure box 601 has a hollow structure. The negative pressure fan 602 is fixedly installed on the side of the negative pressure box 601. The negative pressure fan 602 is used for suction. The negative pressure component 6 can perform cleaning work by negative pressure, reducing the impact of the deposits on the aluminum foil surface on subsequent tests. The structure is simple and reasonable, and the negative pressure cleaning method can reduce wear.

[0037] Example 2, based on Example 1, the jamming test piece 7 includes: a jamming mounting slot 701, a pressing slider 702, and a delay switch 703. Two jamming mounting slots 701 are fixedly installed at the bottom of the negative pressure box 601; the two jamming mounting slots 701 have the same structure; a pressing slider 702 is slidably mounted on the jamming mounting slot 701; a delay switch 703 is fixedly mounted on the pressing slider 702, and the end of the delay switch 703 is attached to the inner side of the jamming mounting slot 701; the jamming mounting slot 701 is electrically connected to an indicator light 205; the jamming test piece 7 also includes: a V-shaped spring 704, an adhesive spring 705, and an adhesive fiber cloth 706. Two V-shaped springs 704 are fixedly mounted on the pressing slider 702; the ends of the two V-shaped springs 704 are respectively connected to the inner side of the jamming mounting slot 701; an adhesive spring 705 is fixedly mounted at the bottom of the pressing slider 702; the adhesive... The bottom of the spring clip 705 is fixedly equipped with a bonding fiber cloth 706, which is used to adhere to the surface of the aluminum foil. The clamping test piece 7 is used to facilitate the control of the measurement position and directly prompt the staff. It can be used to remind the staff to avoid the aluminum foil solder joints or defective positions, ensuring the accuracy of the test. At the same time, it can prevent the aluminum foil to be damaged when the solder joints or defective positions are wrapped or measured, and prevent the defective positions from being broken, which can reduce the defect rate and ensure the accuracy of the thickness measurement position. During the aluminum foil conveying process, after the negative pressure component 6 has completed the cleaning, if there are still adhering impurities, burrs or laser solder joints on the surface of the aluminum foil, the aluminum foil will rub against the bonding fiber cloth 706, thereby pulling the bonding fiber cloth 706 downward. This will control the indicator light 205 to light up to indicate that the thickness measurement work cannot be performed during this period, and also assist the staff in the quality inspection of the aluminum foil in this section.

[0038] The working principle of this embodiment is as follows: First, the aluminum foil is placed as shown in the attached... Figure 1The positions are respectively aligned with the floating roller 103, fixed roller 104, and winding roller 203. As the aluminum foil is conveyed, if the aluminum foil thickness needs to be measured, the drive motor 201 can be directly controlled to rotate the four winding rollers 203, thus fitting the aluminum foil around the outside of the four winding rollers 203. The number of turns can be adjusted according to requirements. During this process, because the aluminum foil is wound up and shortened in length, the floating roller 103 can be pulled, causing the lifting slider 102 to rise for adaptation. Similarly, if one end has an aluminum foil winding structure, the floating roller 103 will also rise to adapt, preventing the aluminum foil from being directly torn. Subsequent testing can then be performed quickly using the weight of the floating roller 103. To allow for a buffer length for the aluminum foil, after the four winding rollers 203 have finished winding the aluminum foil, they are positioned at the bottom with the support plate 204. At this point, the length of the distance to the bulge test shell 501 can be measured by the thickness laser rangefinder 302. Because the bottom of the bulge test shell 501 will be in contact with the aluminum foil, this can more stably reflect the thickness of the aluminum foil. Before performing the thickness measurement using the thickness laser rangefinder 302, the aluminum foil can be pressed by pressing the electromagnet 402 to magnetically attract the support frame 301. If the aluminum foil is not tight enough, when pressing down the aluminum foil, since the aluminum foil is a composite material, the aluminum foil below the bulge test shell 501 will lack sufficient density. When the pressing bracket 401 is pressed, the bulging test shell 501 will adhere to the aluminum foil. If the aluminum foil below the bulging test shell 501 is no longer on the same plane as the aluminum foil below the pressing bracket 401, and with the pulling of the tension spring 503, the bulging test shell 501 will no longer be flush with the pressing bracket 401. The corresponding contact ring 504 and contact wire 4032 will misalign and no longer adhere, and the deviation indicator light 303 will turn off. The thickness data at this point is not for reference. Similarly, if the bottom of the bulging test shell 501 experiences significant wear due to prolonged use, the contact ring 504 and contact wire 4032 will also misalign, thus avoiding errors caused by wear. To ensure the adhesion and accuracy of multi-layer aluminum foil testing, a negative pressure fan 602 can be used for real-time suction. The negative pressure box 601 covers both sides of the aluminum foil for cleaning. After the cleaning is completed, if there are still adhering impurities, burrs, or laser weld points on the surface of the aluminum foil, the aluminum foil will rub against the fiber cloth 706, thereby pulling the fiber cloth 706 downward. This will cause the downward sliding block 702 to move down and lengthen the V-shaped spring 704. At this time, the delay switch 703 is also moved down, no longer squeezing and jamming the inside of the mounting slot 701. This will control the indicator light 205 to light up to indicate that thickness measurement cannot be performed during this period.

[0039] 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.

[0040] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite aluminum foil current collector coating thickness detection device, comprising a detection conveying component (1), wherein a driving winding component (2) is mounted on the detection conveying component (1), characterized in that: The drive winding component (2) is used to wind composite aluminum foil; the detection conveyor component (1) is used to adapt and compensate the composite aluminum foil conveyor line; a laser thickness gauge (3) is installed on the detection conveyor component (1); the laser thickness gauge (3) is used to laser test the thickness of the composite aluminum foil; A pressing component (4) is installed on the laser thickness measuring component (3); the pressing component (4) is used to press the composite aluminum foil; The pressing component (4) is equipped with a compact bulge test component (5); the compact bulge test component (5) is used to test the winding effect of the composite aluminum foil; the detection conveyor component (1) is equipped with a negative pressure component (6); the bottom of the negative pressure component (6) is equipped with two jamming test components (7); the jamming test components (7) are used to test the surface smoothness of the composite aluminum foil; The detection conveyor (1) includes: a conveyor mounting plate (101) and a lifting slider (102). Two lifting sliders (102) are slidably mounted on the conveyor mounting plate (101). Two rows of through holes are provided on the conveyor mounting plate (101), and the two rows of through holes at the bottom of the conveyor mounting plate (101) are used to pass through bolts for installation on the composite aluminum foil production line. The detection conveyor (1) further includes: a floating roller (103) and a fixed roller (104), with the floating roller (103) rotatably mounted on the two lifting sliders (102); and two fixed rollers (104) rotatably mounted on the conveyor mounting plate (101). The drive winding component (2) includes: a drive motor (201), a rotary disk (202), winding rollers (203), a support disk (204), and an indicator light (205). The drive motor (201) is fixedly mounted on the conveyor mounting plate (101). The output shaft of the drive motor (201) passes through the conveyor mounting plate (101). The rotary disk (202) is fixedly mounted on the output shaft of the drive motor (201). Four winding rollers (203) are rotatably mounted on the rotary disk (202). The support disk (204) is fixedly mounted on the rotary disk (202). The top surface of the support disk (204) is tangent to two winding rollers (203) on the same side. The indicator light (205) is fixedly mounted on the support disk (204). The negative pressure component (6) includes: a negative pressure box (601), a rubber ring (6011), and a negative pressure fan (602). The negative pressure box (601) is fixedly installed on the side of the conveying mounting plate (101). The rubber ring (6011) is fixedly installed on the inner side of the negative pressure box (601). The rubber ring (6011) has a groove in the middle. The two rubber rings (6011) are used to attach the two sides of the aluminum foil. The negative pressure box (601) has a hollow structure. The negative pressure fan (602) is fixedly installed on the side of the negative pressure box (601). The negative pressure fan (602) is used for suction.

2. The composite aluminum foil current collector coating thickness detection device according to claim 1, characterized in that: The laser thickness measuring device (3) includes: a support frame (301), a thickness laser rangefinder (302), and a deviation indicator light (303). The support frame (301) is fixedly installed on the side of the conveying mounting plate (101) by two bolts. The thickness laser rangefinder (302) is fixedly installed on the support frame (301). The thickness laser rangefinder (302) is used for laser measurement of the thickness of composite aluminum foil. The deviation indicator light (303) is fixedly installed on the front side of the support frame (301). The thickness laser rangefinder (302) is located above the support plate (204).

3. The composite aluminum foil current collector coating thickness detection device according to claim 2, characterized in that: The pressing component (4) includes: a pressing frame (401), a pressing electromagnet (402), a test block (403), an elastic rubber strip (4031), and a connecting wire (4032). The pressing frame (401) is slidably mounted on a support frame (301). The pressing electromagnet (402) is fixedly mounted on the pressing frame (401). The pressing electromagnet (402) is used to magnetically attract the support frame (301). A spring is provided between the pressing frame (401) and the support frame (301), and the spring between the pressing frame (401) and the support frame (301) is located outside the pressing electromagnet (402). The test block (403) is fixedly mounted on the pressing frame (401). An elastic rubber strip (4031) is fixedly mounted on the inner side of the test block (403), and a connecting wire (4032) is fixedly mounted on the side of the elastic rubber strip (4031).

4. The composite aluminum foil current collector coating thickness detection device according to claim 3, characterized in that: The compact bulge test piece (5) includes: a bulge test shell (501), a closed corrugated tube (502), and a tension spring (503). The closed corrugated tube (502) is fixedly installed on the bulge test shell (501). The bulge test shell (501) is slidably installed on the support frame (301). The top end of the closed corrugated tube (502) is fixedly installed on the bottom of the thickness laser rangefinder (302). The tension spring (503) is sleeved on the outside of the bulge test shell (501). The two ends of the tension spring (503) are connected between the bulge test shell (501) and the pressing frame (401). The bulge test shell (501) is used to adhere aluminum foil.

5. The composite aluminum foil current collector coating thickness detection device according to claim 4, characterized in that: The compact bulge test piece (5) further includes: a contact ring (504), which is sleeved on the outside of the bulge test shell (501) and the contact ring (504) is attached to the contact wire (4032); the contact ring (504), the contact wire (4032) and the deviation indicator light (303) are connected in series with a power supply.

6. The composite aluminum foil current collector coating thickness detection device according to claim 1, characterized in that: The stuck test piece (7) includes: a stuck mounting slot (701), a pressing slider (702), and a time delay switch (703). Two stuck mounting slots (701) are fixedly installed at the bottom of the negative pressure box (601). The two stuck mounting slots (701) have the same structure. A pressing slider (702) is slidably installed on the stuck mounting slot (701). A time delay switch (703) is fixedly installed on the pressing slider (702), and the end of the time delay switch (703) is attached to the inner side of the stuck mounting slot (701). The stuck mounting slot (701) is electrically connected to an indicator light (205).

7. The composite aluminum foil current collector coating thickness detection device according to claim 6, characterized in that: The sticking test piece (7) further includes: a V-shaped spring (704), a bonding spring (705), and a bonding fiber cloth (706). Two V-shaped springs (704) are fixedly installed on the pressing slider (702). The ends of the two V-shaped springs (704) are respectively connected to the inner side of the sticking mounting groove (701). A bonding spring (705) is fixedly installed at the bottom of the pressing slider (702). A bonding fiber cloth (706) is fixedly installed at the bottom of the bonding spring (705), and the bonding fiber cloth (706) is used to bond to the surface of the aluminum foil.

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