A PET composite copper foil coating adhesion testing device and method

Abstract

The present invention belongs to the technical field of PET composite copper foil production, and specifically relates to a device and method for testing the adhesion of a PET composite copper foil coating. The device and method comprise a cleaning unit, a testing unit, and a conveying unit. The device and method provide a testing unit comprising a test column, which can fix the test column to the coatings on both sides of the PET composite copper foil without using an adhesive, and pull the test column in opposite directions to complete the test, thereby saving time, i.e., eliminating the need for a large amount of waiting time, facilitating operation, and saving time and effort. The device and method further provide a cleaning unit, which can clean both sides of the PET composite copper foil, reduce dust on the PET composite copper foil, and thereby strengthen the fixation of the PET composite copper foil by the testing unit. The conveying unit can clamp the PET composite copper foil so that it passes through the cleaning unit to reach the testing unit, thereby facilitating operation.

Description

Technical Field

[0001] The invention belongs to the technical field of PET composite copper foil production, in particular to a device and method for testing the adhesion of a PET composite copper foil coating. Background Art

[0002] PET copper foil is a lithium battery negative electrode current collector. It uses polymer materials such as PET to replace part of the metal, showing partial "demetallization" and has the advantages of high safety, high energy density and long life. The PET composite copper foil structure is a sandwich type.

[0003] When producing PET composite copper foil, it is necessary to conduct adhesion testing on the coating to evaluate whether it meets the requirements for use;

[0004] When testing the adhesion of a coating, the cross-cut method and the pull-off method are often used. The cross-cut method is a test method that uses a cutting tool to cut the coating with a right-angle grid pattern to penetrate the substrate to evaluate the resistance of the coating to detachment from the substrate. The result is evaluated by the area of ​​detachment of the coating. The cross-cut method is usually performed manually using a grid knife. Since PET composite copper foil is relatively thin, it is easy to scratch the PET composite copper foil using a grid knife, which is not conducive to judgment. Therefore, the pull-off method is more convenient for testing the adhesion of PET composite copper foil coatings. However, when using the pull-off method for testing, it is necessary to use The test column and the sample are bonded with adhesive. The two most commonly used adhesives are epoxy resin glue and quick-drying cyanoacrylate adhesive. Epoxy adhesives must be tested after 24 hours at room temperature, while quick-drying cyanoacrylate adhesives can reach test strength after 15 minutes at room temperature. However, it is still recommended to test after 2 hours. During this period, transparent tape is required to fix the newly bonded test column to prevent the adhesive from not curing to a certain strength and causing the column to deviate from its original adhesive position. It can be seen that when using the pull-off method for experiments, the preparation period takes a lot of time, and the operation is complicated, time-consuming and labor-intensive.

[0005] In view of this, the present invention solves the above technical problems by proposing a PET composite copper foil coating adhesion testing device and method. Summary of the Invention

[0006] In order to make up for the shortcomings of the existing technology, the present invention provides a PET composite copper foil coating adhesion test device and method, which is convenient, fast and does not use adhesives to perform an adhesion test on the coating of the PET composite copper foil by a pull-off method.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a PET composite copper foil coating adhesion testing device, comprising: a cleaning unit, which can clean both sides of the PET composite copper foil; a testing unit, which includes a test column, which can fix the test column to the coating on both sides of the PET composite copper foil without using an adhesive, and pull the test column in different directions to complete the test; and a conveying unit, which can clamp the PET composite copper foil so that it passes through the cleaning unit to the testing unit.

[0008] A testing unit is provided, which includes a test column. The testing unit can fix the test column and the coating on both sides of the PET composite copper foil without using an adhesive, and pull the test column in different directions to complete the test, which saves time, that is, there is no need to spend a lot of waiting time, and the operation is convenient, saving time and effort; and a cleaning unit is provided. The cleaning unit can clean both sides of the PET composite copper foil, reduce dust on the PET composite copper foil, and thereby strengthen the fixation of the PET composite copper foil by the test unit; the conveying unit can clamp the PET composite copper foil so that it passes through the cleaning unit to reach the testing unit, which facilitates operation.

[0009] Preferably, the test unit comprises: a test frame, the test frame is a semi-enclosed structure, and a base is fixedly installed on the top and bottom of the test frame; a No. 1 telescopic rod, and the two bases are fixedly connected to the No. 1 telescopic rod on one side close to the middle part of the test frame; a No. 1 tube, and the No. 1 tube is two and is respectively located on the side where the two No. 1 telescopic rods are close to each other, and the two No. 1 telescopic rods can drive the two No. 1 tubes to move closer to or away from each other; a test column, and the test column is fixedly installed on the side where the two No. 1 tubes are close to each other, and the suction cup is fixedly installed on the side where the two test columns are close to each other; the interior of each No. 1 tube is hollow, and the No. 1 electromagnet is fixedly installed on the end of the interior of the two No. 1 tubes away from each other, and the interior of each No. 1 tube is slidably connected to a No. 1 piston, and the side of each No. 1 piston close to the No. 1 electromagnet is fixedly connected to a metal block, and a No. 1 spring is fixedly connected between each No. 1 electromagnet and its corresponding metal block; an air hole is provided at the central part of each suction cup, and each air hole passes through the test column and is connected to the interior of the No. 1 tube.

[0010] Preferably, the periphery of one of the test columns is slidably connected to a cutting platform, and the periphery of the other test column is slidably connected to a cutting knife; the cutting platform and the cutting knife are fixedly connected to two No. 2 telescopic rods on the side away from each other, and the end of each No. 2 telescopic rod cylinder is fixedly connected to a No. 1 pipe, and the other end of each No. 1 pipe is fixedly connected to the end of the No. 1 tube on the corresponding side away from the suction cup, and each No. 1 pipe connects the interior of the corresponding No. 2 telescopic rod cylinder with the interior of the No. 1 tube.

[0011] Preferably, one end of each of the No. 1 telescopic rods is fixedly connected with a sliding inner cylinder, each of the sliding inner cylinders is in the shape of a "F" (X), the outer side of each of the sliding inner cylinders is slidably connected to a sliding outer cylinder, each of the sliding outer cylinders is in the shape of a "door", each of the sliding inner cylinders is arranged to pass through the sliding outer cylinder, the opening part of each of the sliding outer cylinders is fixedly connected to one end of the No. 1 cylinder, and a No. 2 spring is fixedly installed between the side of the interior of the two sliding inner cylinders that are away from each other and the end of the No. 1 cylinder; the end of each of the sliding inner cylinders close to the No. 1 cylinder is fixedly connected to a No. 1 conductive block, and the part of the inner wall of each of the sliding outer cylinders corresponding to the No. 1 conductive block is fixedly connected to a resistor bar, and the end of each resistor bar close to the No. 1 telescopic rod is connected to a power wire, and each of the No. 1 conductive blocks is electrically connected to the control circuit of the No. 1 electromagnet on the corresponding side;

[0012] One side of the test frame is transparent, so that the test process can be observed and the PET composite copper foil can be taken out after the test. A sensor is set on the base to record the tensile strength of the two No. 1 telescopic rods; the metal block is made of a material that can be attracted by a magnet, such as iron; when the No. 1 electromagnet attracts the metal block to approach, the No. 1 spring is in a compressed state; the area between the end of the No. 1 cylinder close to the test column and the No. 1 piston is recorded as the No. 1 area, and the air hole is connected to the No. 1 area; the side where the cutting platform and the cutting knife are away from each other is fixedly connected with two No. 2 telescopic rods, and these two No. 2 telescopic rods are located in the same straight line, and when the cutting platform and the cutting knife are driven closer or away from each other, the cutting platform and the cutting knife can be evenly stressed; the rod body of the No. 2 telescopic rod is fixedly connected to the cutting platform or the cutting knife, and the barrel body of the No. 2 telescopic rod is fixedly connected to the No. 1 pipe, and the No. The area between the electromagnet and the metal block is recorded as area No. 2, and the No. 1 pipe connects area No. 2 with the inside of the cylinder of the No. 2 telescopic rod; the sliding inner cylinder is in the shape of a "F", the upper sliding inner cylinder is in the shape of a regular "F", and the lower sliding inner cylinder is in the shape of an inverted "F", the sliding inner cylinder is directly connected to the No. 1 telescopic rod, and is connected to the No. 1 tube through the No. 2 spring; the sliding outer cylinder is in the shape of a "door", the upper sliding outer cylinder is in the shape of a regular "door", and the lower sliding outer cylinder is in the shape of an inverted "door", the sliding outer cylinder is only connected to the No. 1 tube, and the sliding inner cylinder can slide relative to the sliding outer cylinder; when the sliding inner cylinder is pulled out from the sliding outer cylinder, the length of the resistance bar connected to the control circuit of the No. 1 electromagnet becomes shorter, and the resistance becomes smaller, which is similar to the principle of a sliding rheostat. The greater the current flowing through the No. 1 electromagnet, the stronger the magnetism, and the tighter the suction cup sucks; it is worth noting that, if Figure 7 As shown, when the sliding inner cylinder is pulled out from the sliding outer cylinder to a certain extent, it is limited and cannot be pulled out further, thereby ensuring structural stability.

[0013] Preferably, the cleaning unit includes: box No. 1, one side of the test frame is fixedly connected to box No. 1; box No. 2, the other side of box No. 1 is fixedly connected to box No. 2, and the height of box No. 1 is higher than that of box No. 2; brush No. 1, box No. 1 and box No. 2 are both fixedly connected to telescopic rods No. 3, and the top of each telescopic rod No. 3 is fixedly connected to brush No. 1; the conveying unit includes: a conveying frame, the conveying frame is arranged through box No. 1, box No. 2 and the test frame, and the upper and lower ends of the conveying frame are located inside box No. 1, box No. 2 and the test frame. Parts are transparent; motor No. 1, motor No. 1 is arranged on both sides of the conveying frame, the two motors No. 1 can move along the conveying frame, and the output shafts of the two motors No. 1 are fixedly connected to copper foil clips.

[0014] Preferably, both the No. 1 box and the No. 2 box are filled with water.

[0015] Preferably, a support rod is fixedly connected to one side of the No. 1 box and the No. 2 box near the test frame, and a No. 2 brush is fixedly connected to the top of each support rod.

[0016] Preferably, the connection between the test frame and the No. 1 box is rotatably connected to two flattening rollers, and the two flattening rollers are distributed up and down;

[0017] There are gaps in the side walls of box No. 1, box No. 2 and the test frame to ensure that motor No. 1, copper foil clamp and copper foil can pass through the side walls of box No. 1, box No. 2 and the test frame; the height of box No. 1 is higher than that of box No. 2 to ensure that the copper foil clamp with the PET composite copper foil can be flipped in box No. 1, and the two motors No. 1 can move along the conveyor frame, and the movement can be driven by a screw nut pair plus a motor; brush No. 1 and brush No. 2 can be made of sponge material; the two flattening rollers only contact the upper and lower surfaces of the PET composite copper foil, and there is enough space on both sides of the two flattening rollers to ensure that motor No. 1 and copper foil clamp can pass through the two flattening rollers; the flipping timing of the copper foil clamp in box No. 1, the staying timing in the test frame, and the extension timing of the telescopic rod No. 3 can all be set in advance through the program, and the above operations can be completed by timing or manual control; motor No. 1 is a brake servo motor.

[0018] A method for testing the adhesion of a PET composite copper foil coating is provided, wherein the method adopts a PET composite copper foil coating adhesion testing device as described above, and comprises the following steps:

[0019] S1: The copper foil clamp is adjusted to one end of the No. 2 box in advance. The copper foil clamp clamps the copper foil. Then the No. 1 motor is controlled to move along the conveyor frame. The copper foil clamp carries the PET composite copper foil into the No. 2 box and the No. 1 box. The No. 1 brush cleans both sides of the PET composite copper foil separately.

[0020] S2: Before the test, the test column and the suction cup are separated from each other. When the conveying unit conveys the PET composite copper foil to between the two suction cups, the conveying unit stops working and the two No. 1 telescopic rods are controlled to extend so that the test column and the suction cups can jointly press the PET composite copper foil. At this time, the No. 1 electromagnet is activated, so that the No. 1 piston approaches the No. 1 electromagnet, causing the air hole to absorb air, and cooperating with the suction cups to suck the upper and lower surfaces of the PET composite copper foil; when the No. 1 piston approaches the No. 1 electromagnet, the No. 1 piston presses the air into the cylinder of the No. 2 telescopic rod through the No. 1 pipe, so that the cutting platform and the cutting knife approach each other and contact the PET composite copper foil, completing the cutting;

[0021] S3: Control the two No. 1 telescopic rods to shorten. When the coating of the PET composite copper foil falls off, record the relevant data and complete the experiment. After the experiment, both the No. 1 spring and the No. 2 spring are reset.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention discloses a device and method for testing the adhesion of a PET composite copper foil coating. A testing unit is provided, wherein the testing unit includes a test column. The testing unit can fix the test column to the coatings on both sides of the PET composite copper foil without using an adhesive, and pull the test column in opposite directions to complete the test, thereby saving time, i.e., no large amount of waiting time is required, and the operation is convenient, saving time and effort. A cleaning unit is also provided, which can clean both sides of the PET composite copper foil, reduce dust on the PET composite copper foil, and thereby strengthen the fixation of the PET composite copper foil by the testing unit. A conveying unit can clamp the PET composite copper foil so that it passes through the cleaning unit to the testing unit, thereby facilitating operation.

[0024] 2. The present invention discloses a device and method for testing the adhesion of a PET composite copper foil coating. Before testing, the test column and the suction cup are separated from each other. When the conveying unit conveys the PET composite copper foil between the two suction cups, the conveying unit is stopped and the two No. 1 telescopic rods are controlled to extend so that the test column and the suction cups jointly hold the PET composite copper foil. At this time, the No. 1 electromagnet is activated, causing the No. 1 piston to approach the No. 1 electromagnet, causing the air hole to absorb air, and cooperating with the suction cups to suck the upper and lower surfaces of the PET composite copper foil. When the No. 1 piston approaches the No. 1 electromagnet, the No. 1 piston presses air into the barrel of the No. 2 telescopic rod through the No. 1 pipe, causing the cutting platform and the cutting blade to approach each other, contact the PET composite copper foil, and complete the cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is a perspective view of the present invention;

[0027] Figure 2 yes Figure 1 A local enlarged view of point A;

[0028] Figure 3 is a top view of the present invention;

[0029] Figure 4 is a cross-sectional view of the present invention;

[0030] Figure 5 yes Figure 4 A local enlarged view of point B;

[0031] Figure 6 yes Figure 5 A local enlarged view of point C;

[0032] Figure 7 yes Figure 6 A local enlarged view of point D;

[0033] Figure 8 is a perspective view of a test unit of the present invention;

[0034] In the figure: 1. Cleaning unit; 11. Box No. 1; 12. Box No. 2; 13. Brush No. 1; 131. Telescopic rod No. 3; 14. Flattening roller; 2. Test unit; 21. Test column; 211. Suction cup; 212. Air hole; 22. Test frame; 23. Base; 24. Telescopic rod No. 1; 25. Cylinder No. 1; 251. Electromagnet No. 1; 252. Piston No. 1; 253. Metal block; 254. Spring No. 1; 3. Conveying unit; 31. Conveying frame; 32. Motor No. 1; 33. Copper foil clamp; 4. Cutting platform; 41. Cutting knife; 42. Telescopic rod No. 2; 43. Pipe No. 1; 5. Sliding inner cylinder; 51. Sliding outer cylinder; 52. Spring No. 2; 53. Conductive block No. 1; 54. Resistor bar; 6. Support rod; 61. Brush No. 2. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] like Figure 1 、 Figure 3 、 Figure 4 As shown;

[0037] The present invention provides a PET composite copper foil coating adhesion testing device, comprising: a cleaning unit 1, which is capable of cleaning both sides of the PET composite copper foil; a testing unit 2, which includes a test column 21, which is capable of fixing the test column 21 to the coatings on both sides of the PET composite copper foil without using an adhesive, and pulling the test column 21 in opposite directions to complete the test; and a conveying unit 3, which is capable of holding the PET composite copper foil clamp 33 so that it passes through the cleaning unit 1 and reaches the testing unit 2.

[0038] During work, when testing the adhesion of the coating, the cross-cut method and the pull-off method are often used. The cross-cut method is a test method that uses a cutting knife 41 to cut the coating in a right-angle grid pattern to penetrate the substrate to evaluate the resistance of the coating to detachment from the substrate. The result is evaluated by the coating detachment area. The cross-cut method is usually performed manually using a grid knife. Since the PET composite copper foil is relatively thin, the PET composite copper foil can easily be scratched using a grid knife, which is not conducive to judgment. Therefore, it is more convenient to use the pull-off method to test the adhesion of the PET composite copper foil coating. However, when using the pull-off method for the experiment, an adhesive is required to bond the test column 21 to the sample. The two most commonly used adhesives are epoxy resin glue and fast-drying cyanoacrylate adhesive. Epoxy adhesives can only be tested after 24 hours at room temperature, while fast-drying cyanoacrylate adhesives can reach test strength after 15 minutes at room temperature. However, it is still recommended to wait for 2 hours. The test is carried out, and during this period, transparent tape is needed to fix the newly adhered test column 21 to prevent the adhesive from not being cured to a certain strength and causing the cylinder to deviate from the original adhesive position; it can be seen that when using the pull-off method to conduct the experiment, a lot of time is needed during the preparation period, and the operation is complicated, time-consuming and labor-intensive, so a test unit 2 is set, and the test unit 2 includes a test column 21. The test unit 2 can fix the test column 21 and the coating on both sides of the PET composite copper foil without using adhesive, and pull the test column 21 in different directions to complete the test, saving time, that is, no need to spend a lot of waiting time, and facilitating operation, saving time and effort; and a cleaning unit 1 is set, and the cleaning unit 1 can clean both sides of the PET composite copper foil, reduce dust on the PET composite copper foil, and thereby strengthen the fixation of the PET composite copper foil by the test unit 2; the conveying unit 3 can clamp the PET composite copper foil 33 so that it passes through the cleaning unit 1 to the test unit 2, which is convenient for operation.

[0039] As a specific embodiment of the present invention, Figure 4 、 Figure 5 、 Figure 6 、 Figure 8As shown; the test unit 2 includes: a test frame 22, the test frame 22 is a semi-enclosed structure, and the top and bottom of the test frame 22 are fixedly installed with a base 23; a No. 1 telescopic rod 24, and the two bases 23 are fixedly connected to the No. 1 telescopic rod 24 on one side close to the middle part of the test frame 22; a No. 1 tube 25, and the No. 1 tube 25 is two and is respectively located on the side where the two No. 1 telescopic rods 24 are close to each other, and the two No. 1 telescopic rods 24 can drive the two No. 1 tubes 25 to move closer to or away from each other; a test column 21, and the two No. 1 tubes 25 are fixedly installed with a test column 21 on the side where the two test columns 21 are close to each other. A suction cup 211 is fixedly installed on one side; the interior of each No. 1 tube 25 is hollow, and a No. 1 electromagnet 251 is fixedly installed on the end of the two No. 1 tubes 25 away from each other. The interior of each No. 1 tube 25 is slidably connected to a No. 1 piston 252, and a metal block 253 is fixedly connected to the side of each No. 1 piston 252 close to the No. 1 electromagnet 251. A No. 1 spring 254 is fixedly connected between each No. 1 electromagnet 251 and its corresponding metal block 253; an air hole 212 is provided in the central part of each suction cup 211, and each air hole 212 passes through the test column 21 and communicates with the interior of the No. 1 tube 25;

[0040] like Figure 5 、 Figure 6 、 Figure 8 As shown; the periphery of one test column 21 is slidably connected to a cutting platform 4, and the periphery of the other test column 21 is slidably connected to a cutting knife 41; the cutting platform 4 and the cutting knife 41 are fixedly connected to two No. 2 telescopic rods 42 on the side away from each other, and the end of each No. 2 telescopic rod 42 cylinder is fixedly connected to a No. 1 pipe 43, and the other end of each No. 1 pipe 43 is fixedly connected to the end of the No. 1 tube 25 on the corresponding side away from the suction cup 211, and each No. 1 pipe 43 connects the interior of the corresponding No. 2 telescopic rod 42 cylinder with the interior of the No. 1 tube 25;

[0041] like Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown; one end of each No. 1 telescopic rod 24 is fixedly connected with a sliding inner cylinder 5, each sliding inner cylinder 5 is in the shape of a "F", and the outer side of each sliding inner cylinder 5 is slidably connected to a sliding outer cylinder 51, each sliding outer cylinder 51 is in the shape of a "door", and each sliding inner cylinder 5 is arranged to pass through the sliding outer cylinder 51, and the opening part of each sliding outer cylinder 51 is fixedly connected to one end of the No. 1 cylinder 25, and a No. 2 spring 52 is fixedly installed between the side of the two sliding inner cylinders 5 that is away from each other and the end of the No. 1 cylinder 25; the end of each sliding inner cylinder 5 close to the No. 1 cylinder 25 is fixedly connected to a No. 1 conductive block 53, and the position of the inner wall of each sliding outer cylinder 51 corresponding to the No. 1 conductive block 53 is fixedly connected to a resistor bar 54, and the end of each resistor bar 54 close to the No. 1 telescopic rod 24 is connected to the power wire, and each No. 1 conductive block 53 is electrically connected to the control circuit of the No. 1 electromagnet 251 on the corresponding side;

[0042] During operation, one side of the test frame 22 is transparent, so that the test process can be observed and the PET composite copper foil can be taken out after the test. A sensor is provided on the base 23 to record the tensile strength of the two No. 1 telescopic rods 24; the metal block 253 is a material that can be attracted by a magnet, such as iron; when the No. 1 electromagnet 251 attracts the metal block 253 to approach, the No. 1 spring 254 is in a compressed state; the area between the end of the No. 1 cylinder 25 close to the test column 21 and the No. 1 piston 252 is recorded as the No. 1 area, and the air hole 212 is connected to the No. 1 area; the side where the cutting platform 4 and the cutting knife 41 are away from each other is fixedly connected with two No. 2 telescopic rods 42, and these two No. 2 telescopic rods 42 are located in the same straight line, and when the cutting platform 4 and the cutting knife 41 are driven closer or away from each other, the cutting platform 4 and the cutting knife 41 can be evenly stressed; the rod body of the No. 2 telescopic rod 42 is fixedly connected to the cutting platform 4 or the cutting knife 41, and the barrel body of the No. 2 telescopic rod 42 is fixedly connected to the No. 1 pipe 4 3. The area between the No. 1 electromagnet 251 and the metal block 253 is recorded as the No. 2 area. The No. 1 pipe 43 connects the No. 2 area with the interior of the cylinder of the No. 2 telescopic rod 42. The sliding inner cylinder 5 is in the shape of a Chinese character "J". The upper sliding inner cylinder 5 is in the shape of a regular Chinese character "J", while the lower sliding inner cylinder 5 is in the shape of an inverted Chinese character "J". The sliding inner cylinder 5 is directly connected to the No. 1 telescopic rod 24 and is connected to the No. 1 cylinder 25 through the No. 2 spring 52. The sliding outer cylinder 51 is in the shape of a Chinese character "Gate". The upper sliding outer cylinder 51 is in the shape of a regular gate, while the lower sliding inner cylinder 5 is in the shape of an inverted Chinese character "Gate". The sliding outer cylinder 51 on the side is in the shape of an inverted door. The sliding outer cylinder 51 is only fixedly connected to the No. 1 cylinder 25. The sliding inner cylinder 5 can slide relative to the sliding outer cylinder 51. When the sliding inner cylinder 5 is pulled out of the sliding outer cylinder 51, the length of the resistor bar 54 connected to the control circuit of the No. 1 electromagnet 251 becomes shorter and the resistance becomes smaller. This is similar to the principle of a sliding rheostat. The greater the current flowing through the No. 1 electromagnet 251, the stronger the magnetism, and the tighter the suction cup 211 is attracted. It is worth noting that, if Figure 7 As shown, when the sliding inner cylinder 5 is pulled out from the sliding outer cylinder 51 to a certain extent, it is limited and cannot be pulled out further, thereby ensuring the stability of the structure;

[0043] Before the test, the test column 21 and the suction cup 211 are separated from each other. When the conveying unit 3 conveys the PET composite copper foil to between the two suction cups 211, the conveying unit 3 stops working and controls the two No. 1 telescopic rods 24 to extend so that the test column 21 and the suction cup 211 can jointly hold the PET composite copper foil. At this time, the No. 1 electromagnet 251 is started to attract the metal block 253, so that the No. 1 piston 252 is close to the No. 1 electromagnet 251, so that the air hole 212 sucks air and cooperates with the suction cup 211 to suck the upper and lower surfaces of the PET composite copper foil; when the No. 1 piston 252 is close to the No. 1 electromagnet 251, the No. 1 piston 252 presses the gas into the cylinder of the No. 2 telescopic rod 42 through the No. 1 pipe 43, so that the cutting platform 4 and the cutting knife 41 are close to each other, contacting the PET composite copper foil, and completing the cutting. This can avoid the surrounding coating affecting the attached The accuracy of the force applied enables most of the test parts to be adsorbed by the suction cup 211; then the two telescopic rods 24 are controlled to shorten, at which time the sliding inner cylinder 5 is withdrawn from the sliding outer cylinder 51, the second spring 52 is extended, the first conductive block 53 moves along the resistor strip 54, and the resistance in the control circuit connected to the first electromagnet 251 is reduced, and the magnetic force of the first electromagnet 251 is increased, so that the first piston 252 is closer to the first electromagnet 251, and the suction cup 211 inhales more air, and the suction cup 211 sucks tighter, that is, as the degree of the first telescopic rod 24 pulling the PET composite copper foil increases, the suction cup 211 sucks tighter, reducing the chance of the suction cup 211 and the PET composite copper foil falling off; when the coating of the PET composite copper foil falls off, the relevant data is recorded and the experiment is completed; after the experiment, the first spring 254 and the second spring 52 are both reset.

[0044] As a specific embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 4 As shown; the cleaning unit 1 includes: box No. 11, one side of the test frame 22 is fixedly connected to box No. 11; box No. 2 12, the other side of box No. 1 1 is fixedly connected to box No. 2 12, and the height of box No. 1 1 is higher than that of box No. 2 12; brush No. 13, box No. 1 1 and box No. 2 12 are fixedly connected to telescopic rod No. 31, and the top of each telescopic rod No. 3 131 is fixedly connected to brush No. 13; the conveying unit 3 includes: a conveying frame 31, the conveying frame 31 passes through box No. 1 11, box No. 2 12 and the test frame 22, and the upper and lower ends of the conveying frame 31 are located inside box No. 1 11, box No. 2 12 and the test frame 22. The parts are transparent; motor No. 1 32, motor No. 1 32 is provided on both sides of the conveying frame 31, and the two motors No. 1 32 can move along the conveying frame 31, and the output shafts of the two motors No. 1 32 are fixedly connected to copper foil clips 33;

[0045] Both box 11 and box 2 12 are filled with water;

[0046] like Figure 4As shown; the No. 1 box 11 and the No. 2 box 12 are fixedly connected to one side of the test frame 22, and the top of each support rod 6 is fixedly connected to the No. 2 brush 61;

[0047] like Figure 4 As shown; the connection between the test frame 22 and the No. 1 box 11 is rotatably connected to two flattening rollers 14, and the two flattening rollers 14 are distributed up and down;

[0048] During operation, there are gaps in the side walls of box 11, box 12 and test frame 22 to ensure that motor 32, copper foil clip 33 and copper foil can pass through the side walls of box 11, box 12 and test frame 22; box 11 is higher than box 12 to ensure that copper foil clip 33 with PET composite copper foil can be turned over in box 11, and two motors 32 can move along the conveying frame 31, and the movement can be driven by a screw nut pair and a motor; brush 13, brush 2 The number 1 brush 61 can be made of sponge material; the two flattening rollers 14 only contact the upper and lower surfaces of the PET composite copper foil, and sufficient space is left on both sides of the two flattening rollers 14 to ensure that the number 1 motor 32 and the copper foil clamp 33 can pass through the two flattening rollers 14; the turning timing of the copper foil clamp 33 in the number 1 box 11, the staying timing in the test frame 22, and the extension timing of the number 3 telescopic rod 131 can all be set in advance through the program, and the above operations can be completed by timing or manual control; the number 1 motor 32 is a brake servo motor;

[0049] The copper foil clamp 33 is adjusted to one end of the No. 2 box 12 in advance, and the copper foil clamp 33 holds the copper foil, and then the No. 1 motor 32 is controlled to move along the conveying frame 31. When the copper foil clamp 33 brings the PET composite copper foil into the No. 2 box 12, the corresponding No. 3 telescopic rod 131 is extended, and the water-soaked No. 1 brush 13 contacts the PET composite copper foil to complete the dust removal on one side of the PET composite copper foil, and then contacts the No. 2 brush 61 in the No. 2 box 12. The No. 2 brush 61 is dry and absorbs excess moisture; when the copper foil clamp 33 brings the PET composite copper foil into the No. 1 box 11, the No. 1 motor 32 drives the copper foil clamp 33 to flip 180 degrees, and then controls the corresponding No. 3 telescopic rod 131 to extend, and the water-soaked No. 1 brush 13 contacts the other side of the PET composite copper foil to complete The other side is dusted, and then it contacts the No. 2 brush 61 in the No. 1 box 11. The No. 2 brush 61 is dried and absorbs excess moisture. After the No. 1 brush 13 has removed dust, it retracts into the water, allowing the No. 1 brush 13 to clean itself. The above process completes the dust removal on both sides of the PET composite copper foil and maintains a certain humidity. On the one hand, it reduces the dust from affecting the adsorption of the suction cup 211. On the other hand, the wet PET composite copper foil is more conducive to the sealing between the suction cup 211 and the PET composite copper foil, and thus more conducive to the adsorption of the suction cup 211. Before entering the test frame 22, the copper foil clamp 33 carries the PET composite copper foil and passes it between the two flattening rollers 14. The two flattening rollers 14 flatten it to reduce the unevenness of the PET composite copper foil from affecting the adsorption of the suction cup 211.

[0050] A method for testing the adhesion of a PET composite copper foil coating is provided. The method employs any one of the above-mentioned PET composite copper foil coating adhesion testing devices and comprises the following steps:

[0051] S1: The copper foil clamp 33 is adjusted to one end of the No. 2 box 12 in advance, and the copper foil clamp 33 clamps the copper foil. Then, the No. 1 motor 32 is controlled to move along the conveying frame 31. The copper foil clamp 33 carries the PET composite copper foil into the No. 2 box 12 and the No. 1 box 11. The No. 1 brush 13 cleans both sides of the PET composite copper foil respectively.

[0052] S2: Before the test, the test column 21 and the suction cup 211 are separated from each other. When the conveying unit 3 conveys the PET composite copper foil to between the two suction cups 211, the conveying unit 3 stops working and controls the two No. 1 telescopic rods 24 to extend so that the test column 21 and the suction cups 211 jointly press the PET composite copper foil. At this time, the No. 1 electromagnet 251 is activated, so that the No. 1 piston 252 approaches the No. 1 electromagnet 251, causing the air hole 212 to absorb air, and cooperating with the suction cups 211 to suck the upper and lower surfaces of the PET composite copper foil; when the No. 1 piston 252 approaches the No. 1 electromagnet 251, the No. 1 piston 252 presses the air into the cylinder of the No. 2 telescopic rod 42 through the No. 1 pipe 43, so that the cutting platform 4 and the cutting knife 41 approach each other and contact the PET composite copper foil, completing the cutting;

[0053] S3: Control the two No. 1 telescopic rods 24 to shorten. When the coating of the PET composite copper foil falls off, record the relevant data and complete the experiment. After the experiment, the No. 1 spring 254 and the No. 2 spring 52 are both reset.

Claims

1. A PET composite copper foil coating adhesion test device, characterized by: include: A cleaning unit (1), wherein the cleaning unit (1) is capable of cleaning both sides of the PET composite copper foil; A test unit (2), comprising a test column (21), capable of fixing the test column (21) and the coatings on both sides of the PET composite copper foil without using an adhesive, and pulling the test column (21) in opposite directions to complete the test; A conveying unit (3), wherein the conveying unit (3) is capable of holding the PET composite copper foil clamp (33) so that the PET composite copper foil passes through the cleaning unit (1) and reaches the testing unit (2); The testing unit (2) comprises: A test frame (22), the test frame (22) is a semi-enclosed structure, and a base (23) is fixedly installed on the top and bottom of the test frame (22); A first telescopic rod (24), one side of the two bases (23) close to the middle portion of the test frame (22) is fixedly connected to the first telescopic rod (24); A trumpet (25), wherein the trumpets (25) are two and are respectively located on one side of the two first telescopic rods (24) close to each other, and the two first telescopic rods (24) can drive the two first trumpets (25) to move closer to or farther away from each other; A test column (21), a test column (21) is fixedly installed on the side of the two No. 1 cylinders (25) close to each other, and a suction cup (211) is fixedly installed on the side of the two No. 1 cylinders (21) close to each other; the interior of each No. 1 cylinder (25) is hollow, and the ends of the interiors of the two No. 1 cylinders (25) away from each other are fixedly installed with a No. 1 electromagnet (251); the interior of each No. 1 cylinder (25) is slidably connected to a No. 1 piston (252), and a metal block (253) is fixedly connected to the side of each No. 1 piston (252) close to the No. 1 electromagnet (251); a No. 1 spring (254) is fixedly connected between each No. 1 electromagnet (251) and its corresponding metal block (253); an air hole (212) is provided at the central part of each suction cup (211), and each air hole (212) passes through the test column (21) and is communicated with the interior of the No. 1 cylinder (25); The periphery of one of the test columns (21) is slidably connected to a cutting platform (4), and the periphery of the other test column (21) is slidably connected to a cutting knife (41); the cutting platform (4) and the cutting knife (41) are fixedly connected to two No. 2 telescopic rods (42) on the side away from each other, and the end of the cylinder of each No. 2 telescopic rod (42) is fixedly connected to a No. 1 pipe (43), and the other end of each No. 1 pipe (43) is fixedly connected to the end of the No. 1 tube (25) on the corresponding side away from the suction cup (211), and each No. 1 pipe (43) connects the interior of the cylinder of the corresponding No. 2 telescopic rod (42) with the interior of the No. 1 tube (25); one end of each No. 1 telescopic rod (24) is fixedly connected to a sliding inner tube (5), and each sliding inner tube (5) is in a "J" shape, and the outer side of each sliding inner tube (5) is slidably connected to a sliding inner tube (5). The movable outer cylinder (51) is a door-shaped sliding outer cylinder. Each sliding inner cylinder (5) is arranged to pass through the sliding outer cylinder (51). The opening of each sliding outer cylinder (51) is fixedly connected to one end of the No. 1 cylinder (25). A No. 2 spring (52) is fixedly installed between the side of the two sliding inner cylinders (5) that is away from each other and the end of the No. 1 cylinder (25); the end of each sliding inner cylinder (5) close to the No. 1 cylinder (25) is fixedly connected to the No. 1 conductive block (53). The portion of the inner wall of each sliding outer cylinder (51) corresponding to the No. 1 conductive block (53) is fixedly connected to a resistor bar (54). The end of each resistor bar (54) close to the No. 1 telescopic rod (24) is connected to a power supply wire. Each No. 1 conductive block (53) is electrically connected to the control circuit of the No. 1 electromagnet (251) on the corresponding side.

2. The PET composite copper foil coating adhesion testing device according to claim 1, characterized in that: The cleaning unit (1) comprises: Box No. 1 (11), one side of the test frame (22) is fixedly connected to box No. 1 (11); A second box (12), the other side of the first box (11) is fixedly connected to the second box (12), and the height of the first box (11) is higher than that of the second box (12); A No. 1 brush (13), wherein the No. 1 box (11) and the No. 2 box (12) are both fixedly connected with a No. 3 telescopic rod (131), and the top of each No. 3 telescopic rod (131) is fixedly connected with a No. 1 brush (13); The conveying unit (3) comprises: A conveying frame (31), the conveying frame (31) is arranged to pass through the No. 1 box (11), the No. 2 box (12) and the test frame (22), and the upper and lower ends of the conveying frame (31) are located inside the No. 1 box (11), the No. 2 box (12) and the test frame (22) are transparent; A No. 1 motor (32) is provided on both sides of the conveying frame (31), the two No. 1 motors (32) can move along the conveying frame (31), and the output shafts of the two No. 1 motors (32) are fixedly connected with copper foil clips (33).

3. The PET composite copper foil coating adhesion testing device according to claim 2, characterized in that: The first box (11) and the second box (12) are both filled with water.

4. The PET composite copper foil coating adhesion testing device according to claim 3, characterized in that: A support rod (6) is fixedly connected to one side of the inside of the No. 1 box (11) and the No. 2 box (12) close to the test frame (22), and a No. 2 brush (61) is fixedly connected to the top of each support rod (6).

5. The PET composite copper foil coating adhesion testing device according to claim 4, characterized in that: The connection between the test frame (22) and the No. 1 box (11) is rotatably connected to two flattening rollers (14), and the two flattening rollers (14) are distributed up and down.

6. A method for testing the adhesion of a PET composite copper foil coating, the method employing the device for testing the adhesion of a PET composite copper foil coating according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: The copper foil clamp (33) is adjusted to one end of the No. 2 box (12) in advance, and the copper foil clamp (33) clamps the copper foil (33), and then the No. 1 motor (32) is controlled to move along the conveying frame (31), and the copper foil clamp (33) brings the PET composite copper foil into the No. 2 box (12) and the No. 1 box (11), and the No. 1 brush (13) cleans both sides of the PET composite copper foil respectively; S2: Before the test, the test column (21) and the suction cup (211) are separated from each other. When the conveying unit (3) conveys the PET composite copper foil to between the two suction cups (211), the conveying unit (3) stops working and controls the two No. 1 telescopic rods (24) to extend so that the test column (21) and the suction cup (211) jointly press the PET composite copper foil. At this time, the No. 1 electromagnet (251) is started, so that the No. 1 piston (252) approaches the No. 1 electromagnet (251), so that the air hole (212) absorbs air and cooperates with the suction cup (211) to suck the upper and lower surfaces of the PET composite copper foil. When the No. 1 piston (252) approaches the No. 1 electromagnet (251), the No. 1 piston (252) presses the gas into the cylinder of the No. 2 telescopic rod (42) through the No. 1 pipe (43), so that the cutting platform (4) and the cutting knife (41) approach each other and contact the PET composite copper foil, completing the cutting. S3: Control the two No. 1 telescopic rods (24) to shorten, and when the coating of the PET composite copper foil falls off, record the relevant data and complete the experiment; after the experiment is completed, the No. 1 spring (254) and the No. 2 spring (52) are both reset.

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