Electrostatic inspection apparatus for anti-static protective film

Abstract

The application relates to the technical field of electrostatic detection, and discloses an electrostatic detection equipment for an anti-static protective film, which comprises a test table, a static voltage tester fixedly connected to the top of the test table, a base plate fixedly connected to the top of the test table, a sliding frame slidingly connected to the inner wall of the test table, an extrusion block slidingly connected to the inner wall of the sliding frame, and an electric telescopic rod II. The electric telescopic rod II is started to extend, a connecting frame is pushed to move, a gas pressure frame and a connecting rod are driven to move, the connecting rod is extruded upwards by the extrusion of the concave plate and the convex plate, a spring piston block is driven to rise, a lifting assembly and a discharge assembly are used to generate negative pressure in the gas pressure frame, bubbles between the protective film and the base plate are simultaneously attracted, the bubbles move towards the edge area of the protective film, the bubbles are discharged, the bubbles remaining between the protective film and the base plate are effectively prevented, the peeling process of the protective film is not unstable, the generated static voltage is not greatly fluctuated, and the accuracy of detection data is ensured.

Description

Technical Field

[0001] This invention relates to the field of electrostatic testing equipment technology, specifically to an electrostatic testing device for an antistatic protective film. Background Technology

[0002] When two materials come into contact and rub against each other, electron / ion transfer occurs, causing an imbalance of positive and negative charges in the object's local area. Excess charge remains on the object's surface, forming static electricity. Friction, bonding, and peeling of ordinary PE / PET protective films generate tribostatic electricity. Static electricity can attract dust, damage electronic components, and interfere with precision products. The purpose of antistatic treatment (adding antistatic agents and conductive coatings) is to suppress the tribostatic voltage generated during peeling / bonding and protect the substrate. Therefore, electrostatic testing is usually required during the production of protective films, necessitating the use of electrostatic testing equipment to ensure the antistatic performance of the protective film.

[0003] In the electrostatic testing of antistatic protective films, the protective film is usually first adhered to the substrate, and then peeled off at a uniform speed using a film peeler. The instantaneous static electricity is measured with an electrostatic voltmeter. After the protective film is adhered to the substrate, a pressure roller is used to squeeze the protective film. However, air bubbles may be generated during the adhesion process. When the pressure roller squeezes the protective film, it may squeeze large air bubbles into small air bubbles, making it difficult for the air bubbles to be fully expelled. Air bubbles will cause unevenness in the peeling process of the protective film, resulting in large fluctuations in the static voltage data and affecting the accuracy of the test. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an electrostatic testing device for antistatic protective film, including a test table, an electrostatic voltmeter fixedly connected to the top of the test table, a substrate plate fixedly connected to the top of the test table, and a sliding frame slidably connected to the inner wall of the test table.

[0005] The inner wall of the sliding frame is slidably connected to a compression block, and the top of the inner wall of the test bench is fixedly connected to an electric telescopic rod. The left side of the output end of the electric telescopic rod is fixedly connected to the right side of the sliding frame. The test bench also includes:

[0006] The testing mechanism is installed on the top of the substrate board, and includes several air pressure frames installed on the top of the substrate board.

[0007] A suction mechanism is installed on the top of the test bench. The suction mechanism includes a concave plate fixedly connected to the top of the test bench, and a convex plate fixedly connected to the top of the test bench.

[0008] A synchronization mechanism is installed on the top of the substrate board, and the synchronization mechanism includes several synchronization frames installed on the top of the substrate board.

[0009] The substrate is made of glass or stainless steel, and there are four pneumatic frames and two synchronous frames. In use, the operator applies the protective film to the top of the substrate, then retracts the electric telescopic rod, moving the sliding frame towards the substrate until it is aligned with the left side of the substrate. Once aligned, the operator lifts one end of the protective film, bending it, and places the bent end into the bottom of the extrusion block. The operator then rotates the bolt to lower the extrusion block, pressing and fixing the protective film. After fixing, the electrostatic voltmeter is activated, and the electric telescopic rod is extended, pushing the sliding frame away from the substrate. The extrusion block then pulls the protective film away from the substrate, and the electrostatic voltmeter collects the static electricity generated at the moment of separation.

[0010] Preferably, the testing facility also includes:

[0011] Roll forming assembly, which is installed on top of the substrate board;

[0012] The driver component is installed on top of the test bench.

[0013] Preferably, the suction mechanism further includes:

[0014] The lifting assembly is installed on the inner wall of the pneumatic frame;

[0015] The emission assembly is installed on the inner wall of the air pressure frame.

[0016] Preferably, the synchronization mechanism also includes:

[0017] The pusher component is installed at the bottom of the synchronization frame.

[0018] Preferably, the roll forming assembly includes a connecting frame disposed on the top of the substrate plate, the front side of the connecting frame being slidably connected to the inner wall of the concave plate;

[0019] The back of the connecting frame is slidably connected to the inner wall of the convex plate, and the inner wall of the connecting frame is slidably connected to the extrusion roller.

[0020] The extrusion roller is made of anti-static silicone to prevent static electricity from being generated on the surface of the protective film when the extrusion roller rolls. The extrusion roller can also rotate while sliding within the connecting frame.

[0021] Preferably, the drive assembly includes an electric telescopic rod II fixedly connected to the top of the test bench, the left side of the output end of the electric telescopic rod II being fixedly connected to the right side of the connecting frame, and a pressure roller frame being fixedly connected to the left side of the connecting frame;

[0022] The pressure roller frame is made of anti-static silicone to prevent static electricity from being generated on the surface of the protective film when the pressure roller frame rolls. After the protective film is bonded to the substrate, the electric telescopic rod extends and pushes the connecting frame toward the sliding frame, causing the extrusion roller and the pressure roller frame to move synchronously, so that the pressure roller frame and the extrusion roller extrude the protective film.

[0023] Preferably, the lifting assembly includes a plurality of connecting rods disposed on the top of the substrate plate, the outer walls of the plurality of connecting rods being slidably connected to the inner walls of the plurality of pneumatic frames, and spring piston blocks being slidably connected to the inner walls of the plurality of pneumatic frames.

[0024] The bottom of several connecting rods on the front is slidably connected to the top of the concave plate, and the bottom of several connecting rods on the back is slidably connected to the top of the convex plate.

[0025] The system includes four connecting rods and four spring piston blocks, with sealing strips fixedly connected to the outer walls of each of the four spring piston blocks.

[0026] Preferably, the lifting assembly further includes several inclined top blocks fixedly connected to the left and right sides of the pneumatic frame, the tops of several spring piston blocks are fixedly connected to the bottoms of several connecting rods, and the side of several pneumatic frames near the extrusion roller is fixedly connected to the outer wall of the connecting frame.

[0027] The inner wall of the synchronous frame located on the front is fixedly connected to the outer wall of several connecting rods located on the front, and the inner wall of the synchronous frame located on the back is fixedly connected to the outer wall of several connecting rods located on the back.

[0028] There are eight inclined top blocks. Each pneumatic frame is connected to an inclined top block on the left and right sides. During the movement of the connecting frame, the pneumatic frame and connecting rod will move. The connecting rod on the front and the connecting rod on the back will be squeezed upward by the protruding positions of the concave and convex plates, respectively, which will drive the spring piston block to rise, so that the spring of the spring piston block is compressed and accumulates the rebound force.

[0029] Preferably, the emission assembly includes a plurality of air inlet slots formed on the inner wall of the pneumatic frame, ball-head spring rods are slidably connected to the inner walls of the plurality of pneumatic frames, and the outer walls of the plurality of spring piston blocks are slidably connected to the inner walls of the plurality of air inlet slots.

[0030] The system includes four air inlet slots and four ball-head spring rods. During the ascent of the spring piston block, the air inlet slots are blocked by the spring piston block, preventing external gas from entering the pneumatic frame. As the spring piston block continues to move, the space at the bottom of the spring piston block increases, creating a negative pressure until the spring piston block separates from the air inlet slots. At this point, the bottom of the spring piston block connects with the outside. When the pneumatic frame moves towards the sliding frame, it drives the inclined top block to move. The inclined surface of the inclined top block contacts the bottom of the protective film, lifting the edge of the protective film and separating it from the substrate. The air inlet slots are aligned with the edge area of ​​the protective film. The negative pressure generated in the pneumatic frame attracts external gas into the pneumatic frame and simultaneously attracts air bubbles between the protective film and the substrate, moving them towards the edge area of ​​the protective film. This helps to expel the air bubbles, effectively preventing a large number of air bubbles from remaining between the protective film and the substrate, which could lead to an unstable protective film peeling process and large fluctuations in the generated static voltage, thus ensuring the accuracy of the test data.

[0031] When the connecting rods on the front and back separate from the protruding positions of the concave and convex plates, respectively, and move to their concave positions, the spring piston block's rebound force is released, causing the spring piston block and connecting rods to return to their original positions. When the spring piston block moves into the air inlet groove, it will block the gas from escaping from the bottom of the spring piston block. The spring piston block will then compress the gas, which will then compress the ball spring rod, allowing it to accumulate rebound force, remove the obstruction to the gas, open the exhaust channel, and the gas in the air pressure frame will be discharged from the ball spring rod. This process continues until the connecting rods on the front and back are again compressed by the protruding positions of the concave and convex plates, respectively. This process repeats to achieve multiple cycles of air extraction, fully expelling air bubbles from the mating surfaces.

[0032] Preferably, the pushing component includes a connecting rod rotatably connected to the bottom of the timing frame, and the inner wall of the extrusion roller is provided with a plurality of annular grooves, and the inner wall of each of the plurality of annular grooves is slidably connected with a slide rod;

[0033] The outer walls of several slide rods are slidably connected to the inner wall of the connecting frame, and the inner walls of several connecting rods are rotatably connected to the side of several slide rods away from the extrusion roller.

[0034] There are two annular grooves, two sliding rods, and two connecting rods. When the connecting rod on the left moves and is squeezed and raised by the protruding part of the concave plate, it will drive the synchronous frame and connecting rod to rise. The connecting rod will pull the sliding rod on the left to move towards the concave plate. As the sliding rod continues to move, it will contact the left side of the inner wall of the annular groove on the left. When the sliding rod continues to move, it will push the extrusion roller to move towards the concave plate.

[0035] The connecting rod on the right side moves from the protruding position of the convex plate to the concave position. The connecting rod on the right side descends, pushing the synchronous frame and connecting rod on the right side to descend, and pushing the slide rod on the right side to move towards the concave plate. At the same time, the slide rod on the left side pushes the extrusion roller to move towards the concave plate, so that the slide rod on the right side can continuously slide in the annular groove on the right side, ensuring that the extrusion roller can move smoothly when moving laterally.

[0036] As the connecting rods on the left and right sides continue to move, when the connecting rod on the left side descends and the connecting rod on the right side rises, the connecting rod and slide bar on the right side will pull the squeezing roller towards the convex plate. The squeezing roller will then move towards the air pressure frame on the side that generates negative pressure, causing the squeezing roller to generate lateral thrust, actively pushing the bubbles towards the edge of the protective film, improving the flow efficiency of the bubbles, and ensuring that the bubbles are fully discharged.

[0037] The present invention has the following beneficial effects:

[0038] (1) In this invention, the operator attaches the protective film to the top of the substrate board, starts the electric telescopic rod to extend, and pushes the connecting frame to move towards the sliding frame. This will drive the air pressure frame and the connecting rod to move. The connecting rod will be squeezed upward by the protruding positions of the concave plate and the convex plate, which will drive the spring piston block to rise. Through the lifting component and the discharge component, a negative pressure is generated in the air pressure frame, which will attract external gas into the air pressure frame. At the same time, it will attract the air bubbles between the protective film and the substrate board and move them towards the edge area of ​​the protective film, thereby promoting the discharge of air bubbles. This effectively prevents a large number of air bubbles from remaining between the protective film and the substrate board, which would cause the protective film peeling process to be unstable and cause large fluctuations in the generated static voltage, thereby ensuring the accuracy of the test data.

[0039] (2) In this invention, when multiple air pressure frames move synchronously toward the sliding frame, during the process of the connecting rod on the front moving from the concave position of the concave plate to the convex position, the connecting rod on the back moving from the convex position of the convex plate to the concave position, the connecting rod on the front rising and the connecting rod on the back falling, so that the air pressure frames on the front and back alternately generate negative pressure suction, effectively preventing the air pressure frames on the front and back from generating suction to guide the bubbles out at the same time. The bubbles in the middle area of ​​the protective film will be attracted by the two suction forces at the same time, which will cause the two suction forces to cancel each other out and affect the expulsion of the bubbles.

[0040] (3) In this invention, when the connecting rod on the left moves and is squeezed and raised by the protruding position of the concave plate, it will drive the synchronous frame and the connecting rod to rise. The connecting rod will pull the sliding rod on the left to move towards the concave plate. As the sliding rod continues to move, the sliding rod will contact the left side of the inner wall of the annular groove on the left. As the sliding rod continues to move, it will push the squeezing roller to move towards the concave plate, so that the squeezing roller generates a lateral thrust, actively pushing the bubble towards the edge of the protective film, improving the flow efficiency of the bubble, and ensuring that the bubble is fully discharged.

[0041] (4) In this invention, when the edge of the protective film is pushed up by the inclined surface of the top block and the squeeze roller moves laterally to squeeze the air bubble, the vertical surface of the top block will block the movement of the protective film, which effectively prevents the protective film from being pushed off a large distance when the squeeze roller moves laterally, so that the edge of the protective film is always aligned with the air inlet groove, ensuring that the air bubble is guided out. In addition, by squeezing the protective film by the squeeze roller, the protective film can be fully bonded to the substrate, which can ensure that the bonding degree between the protective film and the substrate tends to be uniform each time, effectively preventing the bonding degree between the protective film and the substrate from being too different during multiple tests, which would affect the accuracy of repeated tests. Attached Figure Description

[0042] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0045] Figure 3 This is a schematic diagram of the cross-sectional structure of the test bench of the present invention;

[0046] Figure 4 This is a top view of the substrate of the present invention;

[0047] Figure 5 This is a right-side view of the substrate of the present invention;

[0048] Figure 6 This is a cross-sectional schematic diagram of the pneumatic frame of the present invention;

[0049] Figure 7 This is a rear cross-sectional view of the pneumatic frame of the present invention;

[0050] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0051] Figure 9 This is a schematic diagram of the right-side cross-sectional view of the extrusion roller of the present invention;

[0052] Figure 10 For the present invention Figure 9 Enlarged view of point B in the middle;

[0053] Figure 11 This is a schematic diagram of the working process of the sliding frame of the present invention.

[0054] The attached diagram lists the components represented by each number as follows:

[0055] In the diagram: 1. Testing mechanism; 11. Roller assembly; 12. Drive assembly; 13. Testing platform; 14. Electrostatic voltmeter; 15. Substrate board; 16. Sliding frame; 17. Extrusion block; 18. Electric telescopic rod one; 101. Pneumatic frame; 111. Connecting frame; 112. Extrusion roller; 121. Electric telescopic rod two; 122. Roller frame; 2. Suction mechanism; 21. Lifting assembly; 22. Discharge assembly; 201. Concave plate; 202. Convex plate; 211. Connecting rod; 212. Spring piston block; 213. Inclined top block; 221. Air inlet groove; 222. Ball head spring rod; 3. Synchronization mechanism; 31. Push assembly; 301. Synchronization frame; 311. Annular groove; 312. Slide rod; 313. Connecting rod. Detailed Implementation

[0056] 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.

[0057] For examples, please refer to Figures 1-11 The present invention is an electrostatic testing device for an antistatic protective film, including a test bench 13, an electrostatic voltmeter 14 fixedly connected to the top of the test bench 13, a substrate plate 15 fixedly connected to the top of the test bench 13, and a sliding frame 16 slidably connected to the inner wall of the test bench 13.

[0058] A pressing block 17 is slidably connected to the inner wall of the sliding frame 16. An electric telescopic rod 18 is fixedly connected to the top of the inner wall of the test platform 13. The left side of the output end of the electric telescopic rod 18 is fixedly connected to the right side of the sliding frame 16. The specific model of the electrostatic voltmeter 14 is YL-H03C-SV. It also includes:

[0059] Test mechanism 1 is installed on the top of substrate 15. Test mechanism 1 includes several air pressure frames 101 installed on the top of substrate 15.

[0060] The suction mechanism 2 is installed on the top of the test bench 13. The suction mechanism 2 includes a concave plate 201 fixedly connected to the top of the test bench 13, and a convex plate 202 fixedly connected to the top of the test bench 13.

[0061] Synchronization mechanism 3 is installed on the top of substrate plate 15. Synchronization mechanism 3 includes several synchronization frames 301 installed on the top of substrate plate 15.

[0062] The substrate board 15 is made of glass or stainless steel, etc. Four pneumatic frames 101 and two synchronization frames 301 are provided. In use, the operator applies a protective film to the top of the substrate board 15, then activates the electric telescopic rod 18 to retract, causing the sliding frame 16 to move towards the substrate board 15, so that the sliding frame 16 is in contact with the left side of the substrate board 15. Figure 11 As shown, after the protective film is properly attached, the operator lifts one end of the protective film, bending it, and inserts the bent end into the bottom of the extrusion block 17. Then, the operator rotates the bolt to push the extrusion block 17 down, as shown. Figure 11 As shown in position G, the protective film is squeezed and fixed. After the film is fixed, the electrostatic voltmeter 14 is activated, and then the electric telescopic rod 18 is activated to extend and push the sliding frame 16 to move away from the substrate 15. The squeezing block 17 will pull the protective film and the substrate 15 apart. The electrostatic voltmeter 14 will collect the electrostatic value generated at the moment of separation in real time.

[0063] Testing facility 1 also includes:

[0064] Roll forming assembly 11 is mounted on top of substrate plate 15;

[0065] Drive component 12 is installed on top of test stand 13.

[0066] The suction mechanism 2 also includes:

[0067] Lifting component 21 is installed on the inner wall of the pneumatic frame 101;

[0068] The emission assembly 22 is installed on the inner wall of the air pressure frame 101.

[0069] Synchronization mechanism 3 also includes:

[0070] Push component 31 is installed at the bottom of the synchronization frame 301.

[0071] The roll forming assembly 11 includes a connecting frame 111 disposed on the top of the substrate plate 15, and the front side of the connecting frame 111 is slidably connected to the inner wall of the concave plate 201.

[0072] The back of the connecting frame 111 is slidably connected to the inner wall of the protruding plate 202, and the inner wall of the connecting frame 111 is slidably connected to the extrusion roller 112.

[0073] The extrusion roller 112 is made of anti-static silicone to prevent static electricity from being generated on the surface of the protective film when the extrusion roller 112 rolls. The extrusion roller 112 can also rotate while sliding in the connecting frame 111.

[0074] The drive assembly 12 includes an electric telescopic rod 121 fixedly connected to the top of the test bench 13. The left side of the output end of the electric telescopic rod 121 is fixedly connected to the right side of the connecting frame 111, and the left side of the connecting frame 111 is fixedly connected to the pressure roller frame 122.

[0075] The material of the pressure roller frame 122 is anti-static silicone to prevent static electricity from being generated on the surface of the protective film when the pressure roller frame 122 rolls. After the protective film is attached to the substrate board 15, the electric telescopic rod 121 is extended to push the connecting frame 111 to move towards the sliding frame 16, thereby driving the extrusion roller 112 and the pressure roller frame 122 to move synchronously, so that the pressure roller frame 122 and the extrusion roller 112 extrude the protective film.

[0076] The lifting assembly 21 includes a plurality of connecting rods 211 disposed on the top of the substrate plate 15. The outer walls of the plurality of connecting rods 211 are slidably connected to the inner walls of the plurality of pneumatic frames 101. Spring piston blocks 212 are slidably connected to the inner walls of the plurality of pneumatic frames 101.

[0077] The bottom of several connecting rods 211 on the front side is slidably connected to the top of the concave plate 201, and the bottom of several connecting rods 211 on the back side is slidably connected to the top of the convex plate 202.

[0078] The connecting rods 211 are provided in four parts, and the spring piston blocks 212 are provided in four parts. The outer walls of the four spring piston blocks 212 are all fixedly connected with sealing strips.

[0079] The lifting assembly 21 also includes several inclined top blocks 213 fixedly connected to the left and right sides of the pneumatic frame 101, the tops of several spring piston blocks 212 are fixedly connected to the bottoms of several connecting rods 211, and the side of several pneumatic frames 101 near the extrusion roller 112 is fixedly connected to the outer wall of the connecting frame 111.

[0080] The inner wall of the synchronous frame 301 located on the front is fixedly connected to the outer wall of several connecting rods 211 located on the front, and the inner wall of the synchronous frame 301 located on the back is fixedly connected to the outer wall of several connecting rods 211 located on the back.

[0081] There are eight inclined top blocks 213. Each pneumatic frame 101 is connected to an inclined top block 213 on the left and right sides. During the movement of the connecting frame 111, the pneumatic frame 101 and the connecting rod 211 will move. The connecting rod 211 on the front and the connecting rod 211 on the back will be squeezed upward by the protruding positions of the concave plate 201 and the convex plate 202, respectively, which will drive the spring piston block 212 to rise, so that the spring of the spring piston block 212 is compressed and accumulates the rebound force.

[0082] The emission assembly 22 includes a plurality of air inlet slots 221 formed on the inner wall of the air pressure frame 101, ball-head spring rods 222 are slidably connected to the inner walls of the plurality of air pressure frames 101, and the outer walls of the plurality of spring piston blocks 212 are slidably connected to the inner walls of the plurality of air inlet slots 221.

[0083] The system includes four air intake slots 221 and four ball-head spring rods 222. During the ascent of the spring piston block 212, the air intake slots 221 are blocked by the spring piston block 212. Figure 8 As shown in position H, external gas cannot enter the pressure frame 101. As the spring piston block 212 continues to move, the space at the bottom of the spring piston block 212 will increase, as... Figure 8 As shown in position I, this will create negative pressure at the bottom of the spring piston block 212 until it separates from the air inlet groove 221. At this point, the bottom of the spring piston block 212 will be connected to the outside. When the air pressure frame 101 moves towards the sliding frame 16, it will drive the inclined top block 213 to move. The inclined surface of the inclined top block 213 will contact the bottom of the protective film, lifting the edge of the protective film, as shown in position I. Figure 7 As shown in position E, the edge of the protective film is separated from the substrate 15, and the air inlet groove 221 is aligned with the edge area of ​​the protective film. The negative pressure generated in the air pressure frame 101 will attract external gas into the air pressure frame 101, and at the same time attract the air bubbles between the protective film and the substrate 15, moving them towards the edge area of ​​the protective film, thereby promoting the expulsion of air bubbles. This effectively prevents a large number of air bubbles from remaining between the protective film and the substrate 15, which would cause the protective film peeling process to be unstable and result in large fluctuations in the generated static voltage, thus ensuring the accuracy of the test data.

[0084] When the connecting rod 211 on the front and the connecting rod 211 on the back separate from the protruding positions of the concave plate 201 and the convex plate 202 respectively, and move to their concave positions, the restoring force of the spring piston block 212 will be released, causing the spring piston block 212 and the connecting rod 211 to return to their original positions. When the spring piston block 212 moves into the air inlet groove 221, it will block the gas from escaping from the bottom of the spring piston block 212. Figure 8As shown in position I, the spring piston block 212 will compress the gas, which will then compress the ball spring rod 222 to move, allowing the ball spring rod 222 to accumulate rebound force, remove the obstruction to the gas, open the exhaust channel, and the gas in the air pressure frame 101 will be discharged from the ball spring rod 222 until the connecting rod 211 on the front and the connecting rod 211 on the back are compressed again by the protruding positions of the concave plate 201 and the convex plate 202, respectively. The above steps are repeated to achieve multiple cycles of air extraction, so as to fully expel the air bubbles in the mating surface.

[0085] The pushing component 31 includes a connecting rod 313 rotatably connected to the bottom of the timing frame 301, and the inner wall of the extrusion roller 112 is provided with a plurality of annular grooves 311, and the inner wall of the plurality of annular grooves 311 is slidably connected with a sliding rod 312.

[0086] The outer walls of several slide rods 312 are slidably connected to the inner wall of the connecting frame 111, and the inner walls of several connecting rods 313 are rotatably connected to the side of several slide rods 312 away from the extrusion roller 112.

[0087] There are two annular grooves 311, two slide rods 312, and two connecting rods 313. When the connecting rod 211 on the left moves and is pushed upwards by the protruding part of the concave plate 201, it will drive the synchronous frame 301 and the connecting rod 313 to rise. The connecting rod 313 will then pull the slide rod 312 on the left towards the concave plate 201. Figure 9 As shown, as the slide bar 312 continues to move, it will contact the left side of the inner wall of the left annular groove 311, as... Figure 10 As shown, if the slide bar 312 continues to move, it will push the extrusion roller 112 to move towards the concave plate 201;

[0088] The connecting rod 211 on the right side moves from the protruding position of the convex plate 202 to the recessed position. The connecting rod 211 on the right side will descend, pushing the synchronous frame 301 and connecting rod 313 on the right side to descend, pushing the slide rod 312 on the right side to move towards the concave plate 201. At the same time, the slide rod 312 on the left side will push the extrusion roller 112 to move towards the concave plate 201, so that the slide rod 312 on the right side can continuously slide in the annular groove 311 on the right side, ensuring that the extrusion roller 112 can move smoothly when moving laterally.

[0089] As the connecting rods 211 on the left and right sides continue to move, when the connecting rod 211 on the left descends and the connecting rod 211 on the right rises, the connecting rod 313 and the sliding rod 312 on the right side will pull the extrusion roller 112 towards the convex plate 202. Figure 9As shown, the extrusion roller 112 will move towards the air pressure frame 101 on the side that generates negative pressure, so that the extrusion roller 112 generates lateral thrust, actively pushing the bubbles towards the edge of the protective film, improving the flow efficiency of the bubbles, and ensuring that the bubbles are fully discharged.

[0090] The number of the above structures is not limited. Those skilled in the art can freely set them according to actual needs, as long as the above structures are installed at the connection positions of the corresponding structures.

[0091] A specific application of this embodiment is as follows: When using this invention, the operator applies the protective film to the top of the substrate board 15, then activates the electric telescopic rod 18 to retract, causing the sliding frame 16 to move towards the substrate board 15, so that the sliding frame 16 is in contact with the left side of the substrate board 15, as shown below. Figure 11 As shown, after the protective film is properly attached, the operator lifts one end of the protective film, bending it, and inserts the bent end into the bottom of the extrusion block 17. Then, the operator rotates the bolt to push the extrusion block 17 down, as shown. Figure 11 As shown in position G, the protective film is squeezed and fixed. After the film is fixed, the electrostatic voltmeter 14 is activated, and then the electric telescopic rod 18 is activated to extend and push the sliding frame 16 to move away from the substrate 15. The squeezing block 17 will pull the protective film and the substrate 15 apart. The electrostatic voltmeter 14 will collect the electrostatic value generated at the moment of separation in real time.

[0092] After the protective film is bonded to the substrate board 15, the electric telescopic rod 121 is extended by starting, pushing the connecting frame 111 to move towards the sliding frame 16, which drives the extrusion roller 112 and the pressure roller frame 122 to move synchronously, so that the pressure roller frame 122 and the extrusion roller 112 extrude the protective film. During the movement of the connecting frame 111, the pneumatic frame 101 and the connecting rod 211 will move. The connecting rod 211 on the front and the connecting rod 211 on the back will be squeezed upward by the protruding positions of the concave plate 201 and the convex plate 202, respectively, which will drive the spring piston block 212 to rise, so that the spring of the spring piston block 212 is compressed and accumulates the rebound force.

[0093] During the upward movement of the spring piston block 212, the air intake slot 221 is blocked by the spring piston block 212, such as Figure 8 As shown in position H, external gas cannot enter the pressure frame 101. As the spring piston block 212 continues to move, the space at the bottom of the spring piston block 212 will increase, as... Figure 8 As shown in position I, this will create negative pressure at the bottom of the spring piston block 212 until it separates from the air inlet groove 221. At this point, the bottom of the spring piston block 212 will be connected to the outside. When the air pressure frame 101 moves towards the sliding frame 16, it will drive the inclined top block 213 to move. The inclined surface of the inclined top block 213 will contact the bottom of the protective film, lifting the edge of the protective film, as shown in position I. Figure 7 As shown in position E, the edge of the protective film is separated from the substrate 15, and the air inlet groove 221 is aligned with the edge area of ​​the protective film. The negative pressure generated in the air pressure frame 101 will attract external gas into the air pressure frame 101, and at the same time attract the air bubbles between the protective film and the substrate 15, moving them towards the edge area of ​​the protective film, thereby promoting the expulsion of air bubbles. This effectively prevents a large number of air bubbles from remaining between the protective film and the substrate 15, which would cause the protective film peeling process to be unstable and result in large fluctuations in the generated static voltage, thus ensuring the accuracy of the test data.

[0094] When the connecting rod 211 on the front and the connecting rod 211 on the back separate from the protruding positions of the concave plate 201 and the convex plate 202 respectively, and move to their concave positions, the restoring force of the spring piston block 212 will be released, causing the spring piston block 212 and the connecting rod 211 to return to their original positions. When the spring piston block 212 moves into the air inlet groove 221, it will block the gas from escaping from the bottom of the spring piston block 212. Figure 8 As shown in position I, the spring piston block 212 will compress the gas, which will then compress the ball spring rod 222 to move, allowing the ball spring rod 222 to accumulate rebound force, remove the obstruction to the gas, open the exhaust channel, and the gas in the air pressure frame 101 will be discharged from the ball spring rod 222 until the connecting rod 211 on the front and the connecting rod 211 on the back are compressed again by the protruding positions of the concave plate 201 and the convex plate 202, respectively. The above steps are repeated to achieve multiple cycles of air extraction, and the air bubbles in the mating surface are fully discharged.

[0095] As multiple pneumatic frames 101 move synchronously toward the sliding frame 16, the connecting rod 211 on the front moves from the recessed position of the concave plate 201 to the convex position, while the connecting rod 211 on the back moves from the convex position of the convex plate 202 to the recessed position. Figure 6 As shown, the connecting rod 211 on the front will rise and the connecting rod 211 on the back will fall, causing the spring piston blocks 212 on the front and back to rise alternately, generating negative pressure suction in the air pressure frame 101 on the front and back. This effectively prevents the air pressure frame 101 on the front and back from generating suction to guide the bubbles out at the same time. Bubbles in the middle area of ​​the protective film will be attracted by the two suction forces at the same time, which will cause the two suction forces to cancel each other out and affect the expulsion of the bubbles.

[0096] During the movement of the left connecting rod 211, when it is pushed upward by the protruding part of the concave plate 201, it will drive the synchronous frame 301 and the connecting rod 313 to rise. The connecting rod 313 will pull the slide rod 312 on the left side towards the concave plate 201. Figure 9 As shown, as the slide bar 312 continues to move, it will contact the left side of the inner wall of the left annular groove 311, as... Figure 10 As shown, if the slide bar 312 continues to move, it will push the extrusion roller 112 to move towards the concave plate 201;

[0097] The connecting rod 211 on the right side moves from the protruding position of the convex plate 202 to the recessed position. The connecting rod 211 on the right side will descend, pushing the synchronous frame 301 and connecting rod 313 on the right side to descend, pushing the slide rod 312 on the right side to move towards the concave plate 201. At the same time, the slide rod 312 on the left side will push the extrusion roller 112 to move towards the concave plate 201, so that the slide rod 312 on the right side can continuously slide in the annular groove 311 on the right side, ensuring that the extrusion roller 112 can move smoothly when moving laterally.

[0098] As the connecting rods 211 on the left and right sides continue to move, when the connecting rod 211 on the left descends and the connecting rod 211 on the right rises, the connecting rod 313 and the sliding rod 312 on the right side will pull the extrusion roller 112 towards the convex plate 202. Figure 9 As shown, the extrusion roller 112 will move towards the air pressure frame 101 on the side that generates negative pressure, so that the extrusion roller 112 generates lateral thrust, actively pushing the bubbles towards the edge of the protective film, improving the flow efficiency of the bubbles, and ensuring that the bubbles are fully discharged.

[0099] As the inclined top block 213 pushes the protective film upward at its edge, and the extrusion roller 112 moves laterally to extrude the air bubble, the vertical surface of the inclined top block 213, such as... Figure 8 As shown in the position of J, it will block the movement of the protective film, effectively preventing the protective film from being pushed off a large distance when the extrusion roller 112 moves laterally, so that the edge of the protective film is always aligned with the air inlet groove 221, ensuring that air bubbles are guided out; in addition, by extruding the protective film by the extrusion roller 112, the protective film can be fully adhered to the substrate 15, which can ensure that the adhesion between the protective film and the substrate 15 tends to be uniform each time, effectively preventing the adhesion between the protective film and the substrate 15 from being too different during multiple tests, which would affect the accuracy of repeated tests;

[0100] When the extrusion roller 112 moves into position towards the sliding frame 16, the electric telescopic rod 121 is activated to retract, which drives the connecting frame 111, the electric telescopic rod 121 and the pressure roller frame 122 to return to their original positions. The pressure roller frame 122 will flatten the protective film again, effectively preventing the inclined top block 213 from lifting the edge of the protective film again during the return process, which would affect the adhesion between the protective film and the substrate board 15.

[0101] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electrostatic testing device for an antistatic protective film, comprising a test bench (13), wherein an electrostatic voltmeter (14) is fixedly connected to the top of the test bench (13), a substrate plate (15) is fixedly connected to the top of the test bench (13), and a sliding frame (16) is slidably connected to the inner wall of the test bench (13). The inner wall of the sliding frame (16) is slidably connected to a pressing block (17), and the top of the inner wall of the test platform (13) is fixedly connected to an electric telescopic rod (18). The left side of the output end of the electric telescopic rod (18) is fixedly connected to the right side of the sliding frame (16). The characteristic of this design is that... Also includes: The test mechanism (1) is installed on the top of the substrate board (15) and includes several air pressure frames (101) installed on the top of the substrate board (15). A suction mechanism (2) is installed on the top of the test bench (13). The suction mechanism (2) includes a concave plate (201) fixedly connected to the top of the test bench (13), and a convex plate (202) fixedly connected to the top of the test bench (13). Synchronization mechanism (3) is installed on the top of substrate plate (15). The synchronization mechanism (3) includes a plurality of synchronization frames (301) installed on the top of substrate plate (15). When in use, the protective film is attached to the top of the substrate board (15), and then the electric telescopic rod (18) is activated to retract, causing the sliding frame (16) to move toward the substrate board (15).

2. The electrostatic testing equipment for an antistatic protective film according to claim 1, characterized in that: The testing facility (1) also includes: Roll forming assembly (11), which is mounted on top of substrate plate (15); A drive assembly (12) is mounted on top of a test bench (13).

3. The electrostatic testing equipment for an antistatic protective film according to claim 2, characterized in that: The suction mechanism (2) further includes: Lifting assembly (21), which is installed on the inner wall of the pneumatic frame (101); The emission assembly (22) is installed on the inner wall of the pressure frame (101).

4. The electrostatic testing equipment for an antistatic protective film according to claim 3, characterized in that: The synchronization mechanism (3) further includes: A push assembly (31) is mounted on the bottom of a synchronization frame (301).

5. The electrostatic testing equipment for an antistatic protective film according to claim 4, characterized in that: The roller pressing assembly (11) includes a connecting frame (111) disposed on the top of the substrate plate (15), the front side of the connecting frame (111) being slidably connected to the inner wall of the concave plate (201); The back of the connecting frame (111) is slidably connected to the inner wall of the protruding plate (202), and the inner wall of the connecting frame (111) is slidably connected to the extrusion roller (112). The extrusion roller (112) can also rotate while sliding within the connecting frame (111).

6. The electrostatic testing equipment for an antistatic protective film according to claim 5, characterized in that: The drive assembly (12) includes an electric telescopic rod two (121) fixedly connected to the top of the test bench (13). The left side of the output end of the electric telescopic rod two (121) is fixedly connected to the right side of the connecting frame (111). The left side of the connecting frame (111) is fixedly connected to the pressure roller frame (122). In this process, by activating the extension of the electric telescopic rod (121), the connecting frame (111), the extrusion roller (112) and the pressure roller frame (122) are pushed to move towards the sliding frame (16), so that the extrusion roller (112) and the pressure roller frame (122) extrude the protective film.

7. The electrostatic testing equipment for an antistatic protective film according to claim 6, characterized in that: The lifting assembly (21) includes a plurality of connecting rods (211) disposed on the top of the substrate plate (15). The outer walls of the plurality of connecting rods (211) are slidably connected to the inner walls of the plurality of pneumatic frames (101). The inner walls of the plurality of pneumatic frames (101) are slidably connected to spring piston blocks (212). The bottom of several connecting rods (211) on the front side is slidably connected to the top of the concave plate (201), and the bottom of several connecting rods (211) on the back side is slidably connected to the top of the convex plate (202).

8. The electrostatic testing equipment for an antistatic protective film according to claim 7, characterized in that: The lifting assembly (21) also includes several inclined top blocks (213) fixedly connected to the left and right sides of the pneumatic frame (101), the tops of several spring piston blocks (212) are fixedly connected to the bottoms of several connecting rods (211), and the side of several pneumatic frames (101) near the extrusion roller (112) is fixedly connected to the outer wall of the connecting frame (111). The inner wall of the synchronous frame (301) located on the front is fixedly connected to the outer wall of a number of connecting rods (211) located on the front, and the inner wall of the synchronous frame (301) located on the back is fixedly connected to the outer wall of a number of connecting rods (211) located on the back. When the connecting frame (111) moves, it will drive the pneumatic frame (101) and the connecting rod (211) to move. The connecting rod (211) is squeezed by the protruding positions of the concave plate (201) and the convex plate (202), which will cause the connecting rod (211) to rise and the spring piston block (212) to rise.

9. The electrostatic testing equipment for an antistatic protective film according to claim 7, characterized in that: The emission assembly (22) includes a plurality of air inlet slots (221) formed on the inner wall of the air pressure frame (101), and ball-head spring rods (222) are slidably connected to the inner walls of the plurality of air pressure frames (101), and the outer walls of the plurality of spring piston blocks (212) are slidably connected to the inner walls of the plurality of air inlet slots (221). When the spring piston block (212) rises, it increases the space at its bottom, thereby generating negative pressure.

10. The electrostatic testing equipment for an antistatic protective film according to claim 6, characterized in that: The pushing assembly (31) includes a connecting rod (313) rotatably connected to the bottom of the timing frame (301), and the inner wall of the extrusion roller (112) is provided with a plurality of annular grooves (311), and the inner walls of the plurality of annular grooves (311) are slidably connected with sliding rods (312). The outer walls of several slide rods (312) are slidably connected to the inner wall of the connecting frame (111), and the inner walls of several connecting rods (313) are rotatably connected to the side of several slide rods (312) away from the extrusion roller (112). When the connecting rod (211) rises, it will drive the synchronous frame (301) to rise, thereby pulling the connecting rod (313) to rotate, and the connecting rod (313) will pull the slide rod (312) to move.

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