A light guide plate ink adhesion detection device

Abstract

The application discloses a light guide plate ink adhesion detection equipment, including: detection support table, the top of the detection support table is fixedly installed with a control cabinet; a light guide plate supporting mechanism, the light guide plate supporting mechanism is arranged on the top of the detection support table, and the light guide plate supporting mechanism is used for clamping and fixing the light guide plate; an adjusting mechanism, the adjusting mechanism is arranged on the top of the detection support table, and the adjusting mechanism is used for adjusting the detection point; a pressing mechanism, the pressing mechanism is arranged on the adjusting mechanism. Through the design of the light guide plate supporting mechanism, the cam can be driven to rotate by the work of the driving motor, the connecting sleeve can be pushed during the rotation of the cam, and then the connecting sleeve is reset by the elastic force of the spring, so that the scraper can repeatedly scrape on the top of the light guide plate, the function of automatically conducting the scratch resistance test is realized, the labor intensity of workers is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of light guide plate testing technology, specifically to a light guide plate ink adhesion testing device. Background Technology

[0002] A light guide plate is a key optical component primarily used to achieve efficient diffusion and uniform distribution of light sources. It is typically made of high-transmittance polymer material through injection molding, with specific microstructures (such as dots, prisms, or etched textures) formed on or inside the plate through precision machining. Its working principle is based on total internal reflection: when light enters from the edge or a specific location, it undergoes multiple total internal reflections within the plate, and scatters upon encountering the surface microstructures, thus converting concentrated line / point light sources into uniform planar light output. Modern light guide plate designs often incorporate auxiliary optical films such as diffusion films and brightness enhancement films to further improve brightness uniformity and light energy utilization. This technology is widely used in LCD backlight modules, LED flat panel lights, advertising light boxes, automotive dashboards, and other fields, offering advantages such as thinness, light weight, and flexibility, while effectively reducing energy consumption, making it one of the core components of new display and lighting technologies.

[0003] During the production of light guide plates, the ink adhesion performance needs to be randomly checked. Ink adhesion problems in light guide plates can be caused by various factors, including improper substrate treatment, ink formulation issues, or unsuitable process parameters. If insufficient adhesion is detected, methods such as corona treatment, adding adhesion promoters, or adjusting drying parameters can be considered to improve it.

[0004] Currently, scratch resistance tests are often used for testing. The scratch resistance test involves applying moderate pressure with your thumbnail and repeatedly scratching the dry ink layer multiple times to observe whether scratches or peeling occur.

[0005] Traditional scratch resistance testing is conducted manually, which is inefficient and leads to high labor intensity for workers. Furthermore, the heat generated by repeated scratching causes the test area to heat up, potentially softening and affecting test accuracy. Therefore, we propose a light guide plate ink adhesion testing device. Summary of the Invention

[0006] The purpose of this invention is to provide a light guide plate ink adhesion testing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a light guide plate ink adhesion testing device, comprising:

[0008] A testing support platform, on the top of which a control cabinet is fixedly installed;

[0009] A light guide plate support mechanism is provided on the top of the detection support platform and is used to clamp and fix the light guide plate.

[0010] An adjustment mechanism is provided on the top of the detection support platform, and the adjustment mechanism is used to adjust the detection point.

[0011] A pressure-applying mechanism, which is mounted on an adjusting mechanism, is used to control the pressure applied during detection.

[0012] A scratch resistance testing mechanism is provided at the end of a pressure application mechanism. The scratch resistance testing mechanism is used to perform scratch testing while simultaneously dissipating heat at the testing area.

[0013] The scratch resistance testing mechanism includes a receiving seat, a support frame fixedly installed on the side of the receiving seat, an air box fixedly installed at the bottom of the receiving seat, a first one-way valve fixedly connected to the side of the air box, an air filter connected to the end of the first one-way valve away from the air box by a threaded connection, a bent pipe fixedly connected to the bottom of the air box, a second one-way valve fixedly connected to the end of the bent pipe away from the air box, a strip-shaped spray pipe fixedly connected to the end of the second one-way valve, a sealing slide plate slidably connected to the inner wall of the air box, a reset elastic element fixedly installed on the side of the sealing slide plate, the end of the reset elastic element away from the sealing slide plate fixedly installed on the side of the inner wall of the air box, and a transmission push rod fixedly installed on the side of the sealing slide plate away from the reset elastic element.

[0014] Preferably, a support frame is fixedly installed on the top of the support frame, a drive motor is fixedly installed on the top of the support frame, the output shaft of the drive motor extends to the bottom of the support frame and is fixedly connected to a rotating shaft, and a cam is fixedly installed on the bottom of the rotating shaft.

[0015] Preferably, a smooth rod is fixedly installed between the two sides of the inner wall of the support frame, a sliding seat is slidably connected to the outer wall of the smooth rod, a spring is fixedly installed on the side of the sliding seat, and the end of the spring away from the sliding seat is fixedly connected to the side of the inner wall of the support frame.

[0016] Preferably, a roller is rotatably connected to the top of the sliding seat, a connecting sleeve is fixedly installed at the bottom of the sliding seat, and a scraper is movably inserted into the bottom of the connecting sleeve.

[0017] Preferably, the adjustment mechanism includes two symmetrical support blocks, both of which are fixedly installed on the top of the detection support platform. A strip rod and a track rod are fixedly installed between adjacent sides of the two symmetrical support blocks. A sliding column is slidably connected to the outer wall of the strip rod and the track rod. A positioning bolt is threadedly connected to the outer wall of the sliding column, and the threaded end of the positioning bolt is movably abutting against the outer wall of the strip rod.

[0018] Preferably, a kit is fixedly installed on the top of the sliding column, a support beam is slidably connected to the inner wall of the kit, and a positioning bolt is threadedly connected to the top of the kit, with the threaded end of the positioning bolt movably abutting against the top of the support beam.

[0019] Preferably, the pressure applying mechanism includes two cylinders, both of which are fixedly installed on the inner wall of the support beam. A sealing slider is slidably connected to the inner wall of the cylinder, and an extension shaft is fixedly installed at the bottom of the sealing slider. The receiving seat is fixedly installed at the bottom of the extension shaft.

[0020] Preferably, a three-way pipe is fixedly connected between the tops of the two cylinders, a digital pressure gauge is fixedly connected to the top of the three-way pipe, and a solenoid valve is fixedly connected to the side of the three-way pipe.

[0021] Preferably, the light guide plate support mechanism includes a base plate, which is fixedly installed on the top of the detection support platform. A first symmetrical support block is fixedly installed on both sides of the base plate. A servo motor is fixedly installed on the side of one of the first symmetrical support blocks. A round rod is fixedly installed between adjacent sides of the two first symmetrical support blocks. A bidirectional lead screw is rotatably connected between adjacent sides of the two first symmetrical support blocks. The output shaft of the servo motor is fixedly connected to the end of the bidirectional lead screw. A symmetrical slider is slidably connected to the outer wall of the round rod and the bidirectional lead screw. An L-shaped clamping arm is fixedly installed on the outer wall of the symmetrical slider.

[0022] Preferably, the inner side of the L-shaped clamping arm is provided with a groove, a limit rod is slidably connected to the inner wall of the L-shaped clamping arm, a connecting plate is fixedly installed at the end of the limit rod, a protrusion is fixedly installed on the side of the connecting plate, a clamping elastic element is fixedly installed on the side of the connecting plate away from the protrusion, the end of the clamping elastic element away from the connecting plate is fixedly installed on the inner wall of the groove, a push switch is fixedly installed on the inner wall of the groove, and a pressure rod is fixedly installed on the outer wall of the connecting plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention, through the overall design of the light guide plate support mechanism, uses the operation of a drive motor to drive the cam to rotate. During the rotation of the cam, it pushes the connecting sleeve, and then the elastic force of the spring drives the connecting sleeve to return to its original position. This causes the scraper to repeatedly scrape the top of the light guide plate, realizing the function of automatically performing scratch resistance testing, reducing the labor intensity of workers, and improving the efficiency of the testing work.

[0025] During the process of the connecting sleeve moving to the right, it will push the transmission push rod, causing the sealing slide plate to move to the right. The air inside the blower box will be sprayed out from the strip nozzle through the bend and the No. 2 one-way valve under pressure, and sprayed onto the scraping detection area of ​​the light guide plate. The airflow will carry away the heat generated by friction, avoiding excessive heat accumulation and high temperature, which may cause softening and affect the accuracy of the test, and reducing the interference of the test. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the light guide plate support mechanism of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the groove in this invention;

[0029] Figure 4 This is a schematic diagram of the adjustment mechanism of the present invention;

[0030] Figure 5 This is a schematic diagram of the pressure application mechanism of the present invention;

[0031] Figure 6 This is a cross-sectional structural diagram of the cylinder of the present invention;

[0032] Figure 7 This is a schematic diagram of the scratch resistance testing mechanism of the present invention;

[0033] Figure 8 This is a schematic diagram of the supporting frame of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the blower box of the present invention;

[0035] Figure 10 This is a schematic diagram of the internal structure of the blower box of the present invention.

[0036] In the diagram: 1. Detection support platform; 11. Control cabinet; 2. Light guide plate support mechanism; 21. Base plate; 22. Symmetrical support block No. 1; 23. Round rod; 24. Servo motor; 25. Bidirectional lead screw; 26. Symmetrical slider; 27. L-shaped clamping arm; 271. Groove; 272. Limiting rod; 273. Connecting plate; 274. Protrusion; 275. Clamping elastic element; 276. Press switch; 277. Pressure rod; 3. Adjustment mechanism; 31. Symmetrical support block No. 2; 32. Strip rod; 33. Track rod; 34. Sliding column; 35. Positioning bolt No. 1; 36. Kit; 37. Positioning bolt No. 2; 38. Support beam; 4. Pressure application mechanism; 41. 411. Cylinder; 412. Sealing slider; 413. Extension shaft; 42. T-joint; 43. Digital pressure gauge; 44. Solenoid valve; 5. Scratch resistance testing mechanism; 51. Receiving seat; 52. Support frame; 521. Smooth rod; 522. Sliding seat; 523. Spring; 524. Roller; 525. Connecting sleeve; 526. Scraper; 53. Support frame; 54. Drive motor; 55. Rotating shaft; 56. Cam; 57. Blower box; 571. No. 1 check valve; 572. Air filter cover; 573. Bend; 574. No. 2 check valve; 575. Strip nozzle; 576. Reset elastic element; 577. Sealing slide plate; 578. Transmission push rod. Detailed Implementation

[0037] 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.

[0038] Please see Figures 1-10 This invention provides a technical solution: a light guide plate ink adhesion testing device, comprising:

[0039] The test support platform 1 has a control cabinet 11 fixedly installed on its top.

[0040] The light guide plate support mechanism 2 is set on the top of the detection support platform 1 and is used to clamp and fix the light guide plate.

[0041] Adjustment mechanism 3 is located on the top of the detection support platform 1 and is used to adjust the detection point.

[0042] The pressure applying mechanism 4 is mounted on the regulating mechanism 3 and is used to control the pressure applied for detection.

[0043] The scratch resistance testing mechanism 5 is located at the end of the pressure applying mechanism 4. The scratch resistance testing mechanism 5 is used to perform scratch testing and dissipate heat at the testing area.

[0044] The scratch resistance testing mechanism 5 includes a receiving seat 51, a support frame 52 fixedly mounted on the side of the receiving seat 51, and a blower box 57 fixedly mounted on the bottom of the receiving seat 51. A first-order check valve 571 is fixedly connected to the side of the blower box 57, and an air filter 572 is threadedly connected to the end of the first-order check valve 571 away from the blower box 57. A bent pipe 573 is fixedly connected to the bottom of the blower box 57, and a second-order check valve 574 is fixedly connected to the end of the bent pipe 573 away from the blower box 57. A strip-shaped spray pipe 575 is fixedly connected to the end of the second-order check valve 574. A sealing slide plate 577 is slidably connected to the inner wall of the blower box 57. A reset elastic element 576 is fixedly mounted on the side of the sealing slide plate 577, and the end of the reset elastic element 576 away from the sealing slide plate 577 is fixedly mounted on the side of the inner wall of the blower box 57. A transmission push rod 578 is fixedly mounted on the side of the sealing slide plate 577 away from the reset elastic element 576. The scratch resistance test is then performed. During the test, the connecting sleeve 525 will repeatedly shift to the right. During the shift of the connecting sleeve 525 to the right, it will push the transmission push rod 578, causing the sealing slide plate 577 to move to the right. The air inside the blower box 57 will be sprayed out from the strip nozzle 575 through the bend pipe 573 and the second one-way valve 574 under pressure. The air is sprayed onto the scraping detection area of ​​the light guide plate. The airflow carries away the heat generated by friction, reducing the high temperature interference of the test and ensuring the accuracy of the test. When the connecting sleeve 525 resets to the left, the elastic force of the reset elastic element 576 can push the sealing slide plate 577 to reset to the left. Then, cold air from the outside can be drawn into the blower box 57 from the end of the first one-way valve 571. Through the design of the air filter cover 572, the air absorbed at the first one-way valve 571 can be filtered. During maintenance, the air filter cover 572 can be disassembled and cleaned by rotating.

[0045] In a preferred embodiment, a support frame 53 is fixedly mounted on the top of the support frame 52, and a drive motor 54 is fixedly mounted on the top of the support frame 53. The output shaft of the drive motor 54 extends to the bottom of the support frame 53 and is fixedly connected to a rotating shaft 55. A cam 56 is fixedly mounted on the bottom of the rotating shaft 55. A smooth rod 521 is fixedly mounted between the two sides of the inner wall of the support frame 52. A sliding seat 522 is slidably connected to the outer wall of the smooth rod 521. A spring 523 is fixedly mounted on the side of the sliding seat 522, and the end of the spring 523 away from the sliding seat 522 is fixedly connected to the inside of the support frame 52. On the side of the wall, the control drive motor 54 works, which drives the rotating shaft 55 to rotate, thereby driving the cam 56 to rotate. During the rotation of the cam 56, it pushes the connecting sleeve 525. When the connecting sleeve 525 is pushed, it slides to the right along the outer wall of the smooth rod 521, while compressing the spring 523. When the cam 56 rotates to the initial state, the elastic force of the spring 523 drives the connecting sleeve 525 to reset, thereby driving the scraper 526 to move left and right continuously, realizing the function of automatically performing scratch resistance test, reducing the labor intensity of the staff, and improving the efficiency of the testing work.

[0046] In a preferred embodiment, a roller 524 is rotatably connected to the top of the sliding seat 522, and a connecting sleeve 525 is fixedly installed at the bottom of the sliding seat 522. A scraper 526 is movably inserted into the bottom of the connecting sleeve 525. When the scraper 526 is damaged, it can be replaced. Loosen the bolts on the side of the connecting sleeve 525, and then pull the scraper 526 out from the bottom of the connecting sleeve 525. After inserting a new scraper 526, tighten the bolts on the side of the connecting sleeve 525. During the rotation of the cam 56, the connecting sleeve 525 is pushed by the roller 524. The roller 524 can rotate, reducing the damage caused by friction and extending the service life. Several notches can be opened at the bottom of the scraper 526 to facilitate the passage of heat dissipation air.

[0047] In the preferred embodiment, the adjustment mechanism 3 includes two symmetrical support blocks 31, both of which are fixedly installed on the top of the testing support platform 1. A strip rod 32 and a track rod 33 are fixedly installed between adjacent sides of the two symmetrical support blocks 31. A sliding column 34 is slidably connected to the outer wall of the strip rod 32 and the track rod 33. A positioning bolt 35 is threadedly connected to the outer wall of the sliding column 34. The threaded end of the positioning bolt 35 is in movable contact with the outer wall of the strip rod 32. If it is necessary to adjust the position of the scratch resistance testing mechanism 5 in the left and right directions, the positioning bolt 35 is loosened, and then the sliding column 34 can be slid on the outer wall of the strip rod 32 and the track rod 33. After the adjustment is completed, the positioning bolt 35 is tightened.

[0048] In a preferred embodiment, a kit 36 ​​is fixedly installed on the top of the sliding column 34, a support beam 38 is slidably connected to the inner wall of the kit 36, and a positioning bolt 37 is threadedly connected to the top of the kit 36. The threaded end of the positioning bolt 37 is in movable contact with the top of the support beam 38. If it is necessary to adjust the position of the scratch resistance testing mechanism 5 in the front-back direction, the positioning bolt 37 is loosened, and then the support beam 38 can be slid in the inner cavity of the kit 36. After the adjustment is completed, the positioning bolt 37 is tightened.

[0049] In a preferred embodiment, the pressure applying mechanism 4 includes two cylinders 41, both fixedly mounted on the inner wall of the support beam 38. A sealing slider 411 is slidably connected to the inner wall of each cylinder 41. An extension shaft 412 is fixedly mounted at the bottom of the sealing slider 411, and a receiving seat 51 is fixedly mounted at the bottom of the extension shaft 412. A three-way pipe 42 is fixedly connected between the tops of the two cylinders 41. A digital pressure gauge 43 is fixedly connected to the top of the three-way pipe 42, and a solenoid valve 44 is fixedly connected to the side of the three-way pipe 42. The output end of an external air source is pre-connected to the end of the solenoid valve 44. The interface of the solenoid valve 44 is threaded, and the external air source is a device such as an air pump. By controlling the opening of the solenoid valve 44, gas can flow through the three-way pipe 42 into the cylinder. Inside 41, the gas pushes the sealing slider 411 downward, which in turn drives the scratch resistance testing mechanism 5 to move downward through the transmission of the extension shaft 412. At this time, the gas pressure inside the three-way pipe 42 is monitored by the digital pressure gauge 43, and the monitoring data is fed back to the control cabinet 11. After reaching the preset value, the control cabinet 11 will close the solenoid valve 44 to achieve the constant pressure detection function, avoiding the problem that excessive pressure can easily damage the light guide plate. It is worth noting that the control cabinet 11, digital pressure gauge 43, and solenoid valve 44 in this solution are devices that can be purchased on the market by those skilled in the art. The structure of these devices has not been modified in this paper. Therefore, those skilled in the art are familiar with their working principle based on their professional knowledge and can apply it skillfully. Therefore, this paper will not elaborate on this further.

[0050] In a preferred embodiment, the light guide plate support mechanism 2 includes a base plate 21, which is fixedly mounted on the top of the detection support platform 1. A first symmetrical support block 22 is fixedly mounted on both sides of the base plate 21. A servo motor 24 is fixedly mounted on the side of one of the first symmetrical support blocks 22. A round rod 23 is fixedly mounted between adjacent sides of the two first symmetrical support blocks 22. A bidirectional lead screw 25 is rotatably connected between adjacent sides of the two first symmetrical support blocks 22. The output shaft of the servo motor 24 is fixedly connected to the end of the bidirectional lead screw 25. Symmetrical sliders 26 are slidably connected to the outer walls of the round rod 23 and the bidirectional lead screw 25. An L-shaped clamping arm 27 is fixedly mounted on the outer wall of the symmetrical sliders 26. When the light guide plate is placed on the top of the base plate 21, the servo motor 24 is controlled to rotate, driving the bidirectional lead screw 25 to rotate and causing the two symmetrical sliders 26 to slide towards each other on the outer wall of the round rod 23. This, in turn, drives the L-shaped clamping arm 27 to clamp and fix the light guide plate, facilitating the detection process.

[0051] In a preferred embodiment, the inner side of the L-shaped clamping arm 27 has a groove 271. A limit rod 272 is slidably connected to the inner wall of the L-shaped clamping arm 27. A connecting plate 273 is fixedly installed at the end of the limit rod 272. A protrusion 274 is fixedly installed on the side of the connecting plate 273. A clamping elastic element 275 is fixedly installed on the side of the connecting plate 273 away from the protrusion 274. The end of the clamping elastic element 275 away from the connecting plate 273 is fixedly installed on the inner wall of the groove 271. A push switch 276 is fixedly installed on the inner wall of the groove 271. The outer wall of the connecting plate 273 is fixedly... A pressure rod 277 is fixedly installed. In the initial state, the protrusion 274 protrudes from the groove 271. When the L-shaped clamping arm 27 clamps the light guide plate, the protrusion 274 will first contact the light guide plate and push it. When the clamping is completed, the protrusion 274 will be completely squeezed into the L-shaped clamping arm 27. At this time, the pressure rod 277 presses the push switch 276. The push switch 276 is electrically connected to the servo motor 24. The push signal controls the servo motor 24 to stop working, so as to prevent the L-shaped clamping arm 27 from moving further and causing the light guide plate to be damaged by pressure.

[0052] Working principle: In use, the light guide plate is placed on top of the substrate 21. The servo motor 24 is controlled to work, which drives the bidirectional lead screw 25 to rotate, driving the two symmetrical sliders 26 to slide towards each other on the outer wall of the round rod 23. This, in turn, drives the L-shaped clamping arm 27 to clamp and fix the light guide plate. Then, the position of the scratch resistance testing mechanism 5 is adjusted. If the position of the scratch resistance testing mechanism 5 needs to be adjusted in the left and right direction, loosen the positioning bolt 1 35, and then slide the sliding column 34 on the outer wall of the strip rod 32 and the track rod 33. After adjustment, tighten the positioning bolt 1 35. If the position of the scratch resistance testing mechanism 5 needs to be adjusted in the front and back direction, loosen the positioning bolt 2 37, and then slide the support beam 38 in the inner cavity of the kit 36. After adjustment, tighten the positioning bolt 2 37. The output end of the external air source is connected to the end of the solenoid valve 44 in advance. Controlling the solenoid valve 44 to open allows the gas to flow through the three-way pipe 42 into the inside of the cylinder 41. The gas will push the sealing slider 411. The downward movement is achieved by the extension shaft 412 driving the scratch resistance testing mechanism 5 to move downwards as a whole. At this time, the digital pressure gauge 43 monitors the air pressure inside the three-way pipe 42 and feeds the monitoring data back to the control cabinet 11. After reaching the preset value, the control cabinet 11 closes the solenoid valve 44, causing the scraper 526 to press against the top of the light guide plate with constant pressure. Subsequently, the drive motor 54 is controlled to work, driving the cam 56 to rotate. During the rotation of the cam 56, it pushes the connecting sleeve 525, which is then pushed by the spring. The elastic force of 523 drives the connecting sleeve 525 to reset, thereby causing the scraper 526 to repeatedly scrape the top of the light guide plate, realizing the function of automatically performing a scratch resistance test. During the displacement of the connecting sleeve 525, it will push the transmission push rod 578, causing the sealing slide plate 577 to move to the right. The air inside the blower box 57 will be sprayed out from the strip nozzle 575 under pressure through the bend pipe 573 and the second one-way valve 574, spraying onto the scraping detection point of the light guide plate, and the heat generated by friction will be carried away by the airflow.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the adhesion of ink to a light guide plate, characterized in that, include: A testing support platform (1) is provided, and a control cabinet (11) is fixedly installed on the top of the testing support platform (1); A light guide plate support mechanism (2) is provided on the top of the detection support platform (1) and is used to clamp and fix the light guide plate. Adjustment mechanism (3), which is located on the top of the detection support platform (1), is used to adjust the detection point; A pressure applying mechanism (4) is provided on the adjusting mechanism (3) and is used to control the pressure applied for detection. Scratch resistance testing mechanism (5), the scratch resistance testing mechanism (5) is located at the end of the pressure applying mechanism (4), the scratch resistance testing mechanism (5) is used to perform scratch testing and heat dissipation at the testing point; The scratch resistance testing mechanism (5) includes a support base (51), a support frame (52) fixedly mounted on the side of the support base (51), a support bracket (53) fixedly mounted on the top of the support frame (52), a drive motor (54) fixedly mounted on the top of the support bracket (53), the output shaft of the drive motor (54) extends to the bottom of the support bracket (53) and is fixedly connected to a rotating shaft (55), a cam (56) fixedly mounted on the bottom of the rotating shaft (55); and a cam (56) is fixedly mounted between the two sides of the inner wall of the support frame (52). A smooth rod (521) is provided, and a sliding seat (522) is slidably connected to the outer wall of the smooth rod (521). A spring (523) is fixedly installed on the side of the sliding seat (522), and the end of the spring (523) away from the sliding seat (522) is fixedly connected to the side of the inner wall of the support frame (52). A roller (524) is rotatably connected to the top of the sliding seat (522), and a connecting sleeve (525) is fixedly installed at the bottom of the sliding seat (522). A scraper (526) is movably inserted into the bottom of the connecting sleeve (525). A blower box (57) is fixedly installed at the bottom of the receiving seat (51). A first one-way valve (571) is fixedly connected to the side of the blower box (57). An air filter cover (572) is threadedly connected to the end of the first one-way valve (571) away from the blower box (57). A bent pipe (573) is fixedly connected to the bottom of the blower box (57). A second one-way valve (574) is fixedly connected to the end of the bent pipe (573) away from the blower box (57). A strip nozzle (575) is fixedly connected to the end of the second one-way valve (574). A sealing slide plate (577) is slidably connected to the inner wall of the blower box (57). A reset elastic element is fixedly installed on the side of the sealing slide plate (577). 576), the end of the reset elastic member (576) away from the sealing slide plate (577) is fixedly installed on the side of the inner wall of the blower box (57), and the side of the sealing slide plate (577) away from the reset elastic member (576) is fixedly installed with a transmission push rod (578); during the rotation of the cam (56), the connecting sleeve (525) will be pushed through the roller (524). During the repeated movement of the connecting sleeve (525), the transmission push rod (578) will be pushed, causing the sealing slide plate (577) to move. The air inside the blower box (57) will be sprayed out from the strip nozzle (575) through the bend pipe (573) and the second one-way valve (574) under pressure, and sprayed to the scraping detection point of the light guide plate.

2. The light guide plate ink adhesion testing device according to claim 1, characterized in that: The adjustment mechanism (3) includes two symmetrical support blocks (31). The number of the two symmetrical support blocks (31) is set to two and both are fixedly installed on the top of the detection support platform (1). A strip rod (32) and a track rod (33) are fixedly installed between the two adjacent sides of the two symmetrical support blocks (31). A sliding column (34) is slidably connected to the outer wall of the strip rod (32) and the track rod (33). A positioning bolt (35) is threadedly connected to the outer wall of the sliding column (34). The threaded end of the positioning bolt (35) is in movable contact with the outer wall of the strip rod (32).

3. The light guide plate ink adhesion testing device according to claim 2, characterized in that: A kit (36) is fixedly installed on the top of the sliding column (34). A support beam (38) is slidably connected to the inner wall of the kit (36). A positioning bolt (37) is threadedly connected to the top of the kit (36). The threaded end of the positioning bolt (37) is in movable contact with the top of the support beam (38).

4. The light guide plate ink adhesion testing device according to claim 3, characterized in that: The pressure applying mechanism (4) includes a cylinder (41), the number of cylinders (41) is set to two and both are fixedly installed on the inner wall of the support beam (38). A sealing slider (411) is slidably connected to the inner wall of the cylinder (41), and an extension shaft (412) is fixedly installed at the bottom of the sealing slider (411). The receiving seat (51) is fixedly installed at the bottom of the extension shaft (412).

5. The light guide plate ink adhesion testing device according to claim 4, characterized in that: A three-way pipe (42) is fixedly connected between the tops of the two cylinders (41), a digital pressure gauge (43) is fixedly connected to the top of the three-way pipe (42), and a solenoid valve (44) is fixedly connected to the side of the three-way pipe (42).

6. The light guide plate ink adhesion testing device according to claim 1, characterized in that: The light guide plate support mechanism (2) includes a base plate (21), which is fixedly installed on the top of the detection support platform (1). A first symmetrical support block (22) is fixedly installed on both sides of the base plate (21). A servo motor (24) is fixedly installed on the side of one of the first symmetrical support blocks (22). A round rod (23) is fixedly installed between the adjacent sides of the two first symmetrical support blocks (22). A bidirectional lead screw (25) is rotatably connected between the adjacent sides of the two first symmetrical support blocks (22). The output shaft of the servo motor (24) is fixedly connected to the end of the bidirectional lead screw (25). A symmetrical slider (26) is slidably connected to the outer wall of the round rod (23) and threadedly connected to the bidirectional lead screw (25). An L-shaped clamping arm (27) is fixedly installed on the outer wall of the symmetrical slider (26).

7. The light guide plate ink adhesion testing device according to claim 6, characterized in that: The L-shaped clamping arm (27) has a groove (271) on its inner side. A limit rod (272) is slidably connected to the inner wall of the L-shaped clamping arm (27). A connecting plate (273) is fixedly installed at the end of the limit rod (272). A protrusion (274) is fixedly installed on the side of the connecting plate (273). A clamping elastic element (275) is fixedly installed on the side of the connecting plate (273) away from the protrusion (274). The end of the clamping elastic element (275) away from the connecting plate (273) is fixedly installed on the inner wall of the groove (271). A push switch (276) is fixedly installed on the inner wall of the groove (271). A pressure rod (277) is fixedly installed on the outer wall of the connecting plate (273).

Images