Liquid crystal substrate processing and cleaning method and equipment

Abstract

The invention provides a liquid crystal substrate processing and cleaning method and equipment. The cleaning method comprises the following steps: step 1, a glass substrate conveying stage; 2, a glass substrate transfer stage; 3, an ultrasonic cleaning stage; and 4, a roller brush washing stage. When the glass substrate is cleaned, full-automatic linkage of cleaning of the glass substrate is achieved, manual intervention is not needed, stable conveying of the glass substrate is guaranteed through cooperation of the conveying component and the bearing component of the ultrasonic cleaning pool, accurate transferring of the glass substrate is achieved through the material moving mechanism, and during ultrasonic cleaning, the material moving mechanism presses and positions the glass substrate, so that the glass substrate is cleaned more accurately. The glass substrate is conveyed to the roller brush flushing mechanism for roller brush flushing after ultrasonic cleaning is completed, the roller brush flushing mechanism synchronously completes flushing and conveying to the drying equipment, the process period is shortened, and the overall cleaning efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal substrate cleaning technology, and specifically to a liquid crystal substrate processing and cleaning method and equipment. Background Technology

[0002] Currently, in the LCD and OLED liquid crystal substrate manufacturing industry, mainstream cleaning equipment generally adopts a combination of cleaning agent spraying and brush head scrubbing. This type of equipment sprays chemical cleaning agents or deionized water onto the surface of the liquid crystal substrate glass through nozzles, and then uses a series of brush heads to rub against the substrate surface, thereby removing defects and impurities. However, this traditional cleaning method is almost ineffective at cleaning defects with strong adhesion, such as glass powder. Residual glass powder can cause serious quality problems in subsequent processes, such as short circuits in the substrate circuitry and film peeling. Furthermore, existing cleaning processes also face industry pain points such as low automation and poor process coordination.

[0003] In traditional cleaning processes, manual intervention is often required for substrate transportation, cleaning, and transfer. This not only increases labor costs but also makes the substrate prone to damage or contamination due to human error. Furthermore, each process operates independently without an efficient coordination mechanism, which can lead to displacement and shaking during substrate transportation, resulting in poor cleaning uniformity. In addition, the waiting time between processes prolongs the overall processing cycle, severely restricting cleaning efficiency and the capacity for large-scale production.

[0004] Although technologies such as ultrasonic cleaning and high-pressure spraying have been gradually applied to the field of LCD substrate cleaning, how to organically integrate ultrasonic cleaning with functions such as automated conveying, precise positioning, and process linkage, and solve problems such as substrate displacement and discontinuity in the connection between various links during ultrasonic cleaning, so as to realize the automated closed loop of the entire cleaning process, remains an urgent technical problem to be solved in this field. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a liquid crystal substrate processing and cleaning method and equipment, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method and apparatus for cleaning a liquid crystal substrate, the cleaning method comprising the following steps:

[0008] Step 1: Glass substrate transport stage: The liquid crystal substrate to be cleaned is transported to one side of the ultrasonic cleaning tank using a transport component. The ultrasonic cleaning tank is equipped with a support component.

[0009] Step 2: Glass substrate transfer stage: The liquid crystal substrate on the conveying component is transferred to the ultrasonic cleaning tank by the material transfer mechanism, and the glass substrate is placed on the supporting component.

[0010] Step 3: Ultrasonic cleaning stage: The glass substrate placed on the supporting component is pressed and positioned by the material transfer mechanism;

[0011] Step 4: Roller brush rinsing stage: The glass substrate on the supporting component is transferred to the roller brush rinsing mechanism by the material transfer mechanism. The roller brush rinsing mechanism rinsing the glass substrate by roller brush and then conveying it to the external drying equipment.

[0012] Furthermore: In step two, during the transfer of the liquid crystal substrate on the conveying component into the ultrasonic cleaning tank by the transfer mechanism, the weight of the glass substrate is detected by the transfer mechanism.

[0013] Furthermore: In step three, during the pressing and positioning of the glass substrate placed on the supporting component by the material transfer mechanism, the bending strength of the glass substrate is detected by the material transfer mechanism.

[0014] A liquid crystal substrate processing and cleaning equipment, applying the liquid crystal substrate processing and cleaning method described in any one of the above claims, wherein the conveying component includes a conveying frame, a conveying roller is linearly arrayed and rotatably mounted on the top of the conveying frame in the conveying direction, and a motor for driving the conveying roller to rotate is fixedly mounted on the conveying frame.

[0015] The ultrasonic cleaning tank includes a cleaning tank body, an ultrasonic generator, an inlet pipe, and an outlet pipe. One side of the conveyor frame has the cleaning tank body with an open top. An ultrasonic generator is installed at the bottom of the cleaning tank body, acting within it. An inlet pipe is connected through the top of one side of the cleaning tank body, and an outlet pipe is connected through the bottom of the other side. A flow regulating valve is fixedly installed on the inlet pipe, and a flow regulating valve is fixedly installed on the outlet pipe. The supporting components include support frames symmetrically arranged within the cleaning tank body.

[0016] The roller brush rinsing mechanism includes a rinsing pool, a first conveying roller brush, a cover, a second conveying roller brush, and rinsing components. The main body of the rinsing pool has a rinsing pool with an open top on the side away from the conveyor frame. The first conveying roller brush is installed in a horizontal linear array at the top of the inner side of the rinsing pool. A second motor for driving the first conveying roller brush to rotate is fixedly installed on the rinsing pool. A cover is fixedly installed on one side of the top of the rinsing pool. The second conveying roller brush is installed in a rotatable manner at the bottom of the inner side of the cover and above the first conveying roller brush. A third motor for driving the second conveying roller brush to rotate is fixedly installed on the cover. A rinsing component connected to the rinsing pool is installed on the cover.

[0017] The material transfer mechanism includes a guide rail, a moving block, and a gripping and positioning component. A guide rail is provided above the conveyor frame and the main body of the cleaning tank. The end of the guide rail extends to one side of the cover. A moving block is slidably installed at the bottom of the guide rail in a horizontal direction. An electric slider connected to the moving block is fixedly installed on the guide rail. A gripping and positioning component is installed on the moving block. The gripping and positioning component is used to grip and position the glass substrate.

[0018] Furthermore, the supporting component also includes a snap-fit ​​component, which includes snap-fit ​​units symmetrically installed on the inner bottom wall of the main body of the cleaning tank. Each snap-fit ​​unit includes a snap-fit ​​block fixed horizontally on the inner bottom wall of the main body of the cleaning tank. The longitudinal section of the support frame is inverted U-shaped, and snap-fit ​​holes are provided at both ends of the bottom of the support frame. The support frame is movably fitted onto the outside of two symmetrical snap-fit ​​blocks through the two snap-fit ​​holes, and the support frame is snapped into the two snap-fit ​​blocks.

[0019] Furthermore: the rinsing component includes a water tank, a water pipe 1, and a water pipe 2. The water tank is fixedly installed on one side of the cover. The water pipe 1 is fixedly installed inside the cover and on the side of the conveyor roller brush 2 away from the main body of the cleaning tank. The side of the water pipe 1 closest to the main body of the cleaning tank has a water outlet 1 that slopes downwards along the direction of the main body of the cleaning tank. The water pipe 2 is fixedly installed inside the rinsing tank and below the water pipe 1. The side of the water pipe 2 closest to the main body of the cleaning tank has a water outlet 2 that slopes upwards along the direction of the main body of the cleaning tank. One end of both the water pipe 1 and the water pipe 2 are connected to the water tank.

[0020] Furthermore: the gripping and positioning assembly includes a moving plate, a driving component, a spring telescopic rod, a lower connecting plate, a hinge plate, an upper connecting plate, a drive rod, and a motor. Two moving plates are horizontally slidably mounted on the bottom of the moving block. A driving component connected to both moving plates is mounted on the moving block, used to cause the two moving plates to slide in opposite directions or stop sliding. Vertical telescopic rods are symmetrically fixed to the bottom of the moving plates. An upper connecting plate is fixedly mounted to the bottom of the two telescopic rods. A drive rod connected to the upper connecting plate is fixedly mounted to the bottom of the moving plate. One of the rods consists of two vertically shaped spring telescopic rods symmetrically fixed to the bottom of the upper connecting plate. A lower connecting plate, the same width as the upper connecting plate, is fixedly installed at the bottom of each of the two spring telescopic rods. A hinge plate is hinged to the lower connecting plate via a hinge shaft. A mounting groove is provided on one side of the lower connecting plate, and one end of the hinge shaft extends into the mounting groove. A motor for driving the hinge shaft to rotate is fixedly installed in the mounting groove. A sealing plate for sealing the opening of the mounting groove is fixedly installed at the end of the lower connecting plate. A bidirectional force-measuring component connected to the lower connecting plate is installed on the movable plate.

[0021] Furthermore: the driving component includes a bidirectional threaded rod that is horizontally rotatably mounted on the moving block. The bidirectional threaded rod is threadedly connected to both moving plates. A motor for driving the bidirectional threaded rod to rotate is fixedly mounted on the moving block.

[0022] Furthermore: the bidirectional force measuring component includes a lower fixed frame fixedly installed on the lower connecting plate. Slide grooves are provided on both sides of the lower fixed frame. A sliding plate is vertically slidably installed on the lower fixed frame within the slide grooves. A connecting frame with an inverted U-shaped longitudinal section is fixedly installed on the two sliding plates inside the lower fixed frame. An upper fixed frame is movably fitted onto the outside of the connecting frame and fixedly installed at the bottom of the upper connecting plate. The top of the connecting frame is in contact with the inner top wall of the upper fixed frame. A guide rod movably passes through the inner bottom wall of the lower fixed frame inside the connecting frame. A positioning frame with a U-shaped cross-section is fixedly installed at the top of the guide rod. The top of the positioning frame extends to both sides of the upper fixed frame. A positioning component one is installed on the positioning frame, used to position or cancel positioning between the positioning frame and the upper fixed frame. A positioning component two is installed on the lower connecting plate, used to position or cancel positioning between the lower connecting plate and the sliding plate. A pressure sensor, in contact with the inner top wall of the connecting frame, is fixedly installed on the inner bottom wall of the positioning frame.

[0023] Furthermore: the positioning component one includes a bracket one and a drive rod two. Both sides of the positioning frame have through holes, and both sides of the upper fixed frame have positioning holes. The bracket one is fixedly installed on the positioning frame outside the through holes. The drive rod two is fixedly installed on the bracket one. The piston rod of the drive rod two can move through the through holes and be inserted into the positioning holes and engaged with the upper fixed frame. The positioning component two includes a bracket two, a locking plate and a drive rod three. The bracket two is fixedly installed on the lower connecting plate outside the slide plate. The end of the slide plate near the bracket two has a locking hole. The bracket two has a locking plate that can be inserted into the locking hole and engaged with the slide plate in a horizontal direction. The drive rod three for driving the locking plate to slide is fixedly installed on the bracket two.

[0024] This invention provides a method and apparatus for cleaning liquid crystal substrates. Compared with the prior art, it has the following advantages:

[0025] 1. During the cleaning of glass substrates, the entire process is fully automated without manual intervention. The conveying components work in conjunction with the supporting components of the ultrasonic cleaning tank to ensure stable transport of the glass substrates. The transfer mechanism enables precise transfer of the glass substrates. During ultrasonic cleaning, the transfer mechanism holds and positions the glass substrates to prevent displacement and improve cleaning uniformity. After ultrasonic cleaning, the substrates are transported to the roller brush rinsing mechanism for roller brush rinsing. The roller brush rinsing mechanism simultaneously completes rinsing and transport to the drying equipment, shortening the process cycle and improving overall cleaning efficiency.

[0026] 2. The weight detection function is integrated into the glass substrate transfer process of the transfer mechanism. The gripping structure of the transfer mechanism supports the weight of the substrate, and the integrity of the substrate is determined by the weight data. No additional independent detection equipment is required. The preliminary screening of defective substrates can be achieved without adding a process, reducing ineffective cleaning operations and lowering production costs.

[0027] 3. During the process of pressing and positioning the substrate by the transfer mechanism, the bending strength of the glass substrate is detected by a controllable downward pressure. When a quantitative pressure is applied, if the bending strength of the glass substrate is not up to standard, it will be damaged, thereby quickly screening out glass substrates that meet the strength standard. The detection process is integrated with the positioning step of ultrasonic cleaning, eliminating the need for additional detection procedures and improving the efficiency of glass substrate quality control. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0029] Figure 1 A flowchart of the cleaning method of the present invention is shown;

[0030] Figure 2 A schematic diagram of the cleaning device of the present invention is shown;

[0031] Figure 3 A partial structural schematic diagram of the material transfer mechanism of the present invention is shown;

[0032] Figure 4 A schematic diagram of the mounting structure of the movable plate of the present invention is shown;

[0033] Figure 5 A schematic diagram of the installation structure of the bidirectional force measuring component of the present invention is shown;

[0034] Figure 6 The present invention is shown Figure 5 Enlarged view of point A in the middle;

[0035] Figure 7 A schematic diagram of the mounting structure of the hinge plate of the present invention is shown;

[0036] Figure 8 A schematic diagram of the roller brush rinsing mechanism of the present invention is shown;

[0037] Figure 9 A schematic diagram of the installation structure of the water pipe of the present invention is shown;

[0038] Figure 10A schematic diagram of the installation structure of the support component of the present invention is shown;

[0039] Figure 11 A schematic diagram of the installation structure of the positioning component one of the present invention is shown;

[0040] The diagram shows: 1. Conveying component; 11. Conveying frame; 12. Conveying roller one; 2. Ultrasonic cleaning tank; 21. Cleaning tank body; 22. Ultrasonic generator; 23. Inlet pipe; 231. Flow regulating valve one; 24. Drain pipe; 241. Flow regulating valve two; 3. Supporting component; 31. Support frame; 311. Snap-fit ​​hole; 32. Snap-fit ​​piece; 321. Snap-fit ​​block; 4. Transfer mechanism; 41. Guide rail; 42. Moving block; 43. Gripping and positioning assembly; 431. Moving plate; 432. Driving component; 4321. Bidirectional threaded rod; 433. Spring telescopic rod; 434. Lower connecting plate; 435. Hinge plate; 436. Motor; 437. 438. Upper connecting plate; 5. Drive rod 1; 6. Roller brush rinsing mechanism; 51. Rinsing tank; 52. Conveying roller brush 1; 53. Cover; 54. Conveying roller brush 2; 55. Rinsing component; 551. Water tank; 552. Water pipe 1; 553. Water pipe 2; 6. Bidirectional force measuring component; 61. Lower fixing frame; 62. Slide plate; 621. Clip hole; 63. Connecting frame; 64. Upper fixing frame; 641. Positioning hole; 65. Guide rod; 66. Positioning frame; 67. Positioning component 1; 671. Bracket 1; 672. Drive rod 2; 68. Positioning component 2; 681. Bracket 2; 682. Clip plate; 683. Drive rod 3; 69. Pressure sensor. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0042] Example

[0043] To address the technical problems in the background section, the following method and equipment for processing and cleaning liquid crystal substrates are provided:

[0044] Combination Figures 1-11 As shown, the present invention provides a liquid crystal substrate processing and cleaning method, the cleaning method comprising the following steps:

[0045] Step 1: Glass substrate transport stage: The liquid crystal substrate to be cleaned is transported to one side of the ultrasonic cleaning tank 2 using the transport component 1. The ultrasonic cleaning tank 2 is equipped with a support component 3.

[0046] Step 2: Glass substrate transfer stage: The liquid crystal substrate on the conveying component 1 is transferred to the ultrasonic cleaning tank 2 by the material transfer mechanism 4, and the glass substrate is placed on the supporting component 3.

[0047] Step 3: Ultrasonic cleaning stage: The glass substrate placed on the support component 3 is pressed and positioned by the transfer mechanism 4;

[0048] Step 4: Roller brush rinsing stage: The glass substrate on the supporting component 3 is transferred to the roller brush rinsing mechanism 5 by the material transfer mechanism 4. The roller brush rinsing mechanism 5 rinsing the glass substrate by roller brush and conveying it to the external drying equipment.

[0049] During the cleaning of glass substrates, the entire process is fully automated without manual intervention. The conveying component 1 and the supporting component 3 of the ultrasonic cleaning tank 2 work together to ensure stable transport of the glass substrates. The transfer mechanism 4 enables precise transfer of the glass substrates. During ultrasonic cleaning, the transfer mechanism 4 holds and positions the glass substrates to prevent displacement and improve cleaning uniformity. After ultrasonic cleaning, the substrates are transported to the roller brush rinsing mechanism 5 for roller brush rinsing to improve the cleaning effect. The roller brush rinsing mechanism 5 simultaneously completes rinsing and transport to the drying equipment, shortening the process cycle and improving the overall cleaning efficiency.

[0050] Combination Figures 1-11 As shown, in step two, during the transfer of the liquid crystal substrate on the conveying component 1 to the ultrasonic cleaning tank 2 by the transfer mechanism 4, the weight of the glass substrate is detected by the transfer mechanism 4. The weight detection function is integrated during the transfer of the glass substrate by the transfer mechanism 4. The gripping structure of the transfer mechanism 4 carries the weight of the substrate, and the integrity of the substrate is determined by the weight data. There is no need to set up an additional independent detection device. The preliminary screening of defective substrates can be achieved without adding a process, reducing ineffective cleaning operations and reducing production costs.

[0051] Combination Figures 1-11 As shown, in step three, during the pressing and positioning of the glass substrate placed on the support component 3 by the transfer mechanism 4, the bending strength of the glass substrate is tested by the transfer mechanism 4. During the pressing and positioning of the substrate by the transfer mechanism 4, the bending strength of the glass substrate is tested by a controllable downward pressure. When a quantitative pressure is applied, if the bending strength of the glass substrate is not qualified, it will be damaged, thereby quickly screening out glass substrates with qualified strength. The testing process is integrated with the positioning step of ultrasonic cleaning, eliminating the need for additional testing procedures and improving the efficiency of glass substrate quality control.

[0052] A liquid crystal substrate processing and cleaning equipment, applying the liquid crystal substrate processing and cleaning method described in any of the above claims, wherein the conveying component 1 includes a conveying frame 11, and conveying rollers 12 are rotatably mounted on the top of the conveying frame 11 in a linear array in the conveying direction, and a motor for driving the conveying rollers 12 to rotate is fixedly mounted on the conveying frame 11.

[0053] The ultrasonic cleaning tank 2 includes a cleaning tank body 21, an ultrasonic generator 22, an inlet pipe 23, and a drain pipe 24. The conveyor frame 11 has a cleaning tank body 21 with an open top on one side. Cleaning fluid is contained within the cleaning tank body 21. An ultrasonic generator 22 is installed at the bottom of the cleaning tank body 21, acting within it. An inlet pipe 23 is connected to the top of one side of the cleaning tank body 21, and a drain pipe 24 is connected to the bottom of the other side. The inlet pipe 23 is connected to the delivery end of an external cleaning fluid delivery pump. A flow regulating valve 231 is fixedly installed on the inlet pipe 23, and a flow regulating valve 241 is fixedly installed on the drain pipe 24. The flow regulating valves 231 and 241 are communicatively connected to a PLC control system. The supporting component 3 includes a support frame 31 symmetrically arranged within the cleaning tank body 21.

[0054] The roller brush rinsing mechanism 5 includes a rinsing tank 51, a first conveying roller brush 52, a cover 53, a second conveying roller brush 54, and a rinsing component 55. The rinsing tank body 21 is provided with a rinsing tank 51 with an open top on the side away from the conveyor frame 11. The first conveying roller brush 52 is rotatably mounted in a horizontal linear array at the top of the inner side of the rinsing tank 51. A second motor for driving the first conveying roller brush 52 to rotate is fixedly mounted on the rinsing tank 51. A cover 53 is fixedly mounted on one side of the top of the rinsing tank 51. The second conveying roller brush 54 is rotatably mounted at the bottom of the inner side of the cover 53 and above the first conveying roller brush 52. A third motor for driving the second conveying roller brush 54 to rotate is fixedly mounted on the cover 53. A rinsing component 55 connected to the rinsing tank 51 is mounted on the cover 53.

[0055] The material transfer mechanism 4 includes a guide rail 41, a moving block 42, and a gripping and positioning assembly 43. The guide rail 41 is located above the conveyor frame 11 and the main body of the cleaning tank 21. The end of the guide rail 41 extends to one side of the cover 53. The moving block 42 is slidably mounted horizontally on the bottom of the guide rail 41. An electric slider connected to the moving block 42 is fixedly mounted on the guide rail 41. The gripping and positioning assembly 43 is mounted on the moving block 42. The gripping and positioning assembly 43 is used to grip and position the glass substrate. In use, the conveying component 1 achieves stable conveying of the glass substrate through the conveying roller 12; the main body of the cleaning tank... The inlet pipe 23 and outlet pipe 24 of body 21, together with flow regulating valve 1 231 and flow regulating valve 241, precisely control the amount of cleaning liquid; the roller brush rinsing mechanism 5 simultaneously brushes the upper and lower surfaces of the glass substrate through conveying roller brush 1 52 and conveying roller brush 2 54, and improves the rinsing effect through the cooperation of cover 53 and rinsing component 55; the guide rail 41, electric slider 1 and gripping and positioning component 43 of transfer mechanism 4 cooperate to realize the precise transfer and positioning of glass substrate between conveying component 1, ultrasonic cleaning tank 2 and roller brush rinsing mechanism 5. The overall structure is compact, the transfer is stable, and the cleaning efficiency is improved.

[0056] Combination Figures 1-11 As shown, the supporting component 3 also includes a snap-fit ​​component 32. The snap-fit ​​component 32 includes snap-fit ​​units symmetrically installed on the inner bottom wall of the cleaning tank body 21. The snap-fit ​​unit includes snap-fit ​​blocks 321 fixed horizontally on the inner bottom wall of the cleaning tank body 21. The longitudinal section of the support frame 31 is inverted U-shaped. Snap-fit ​​holes 311 are provided at both ends of the bottom of the support frame 31. The support frame 31 is movably fitted onto the outside of two symmetrical snap-fit ​​blocks 321 through the two snap-fit ​​holes 311, and the support frame 31 is snapped into the two snap-fit ​​blocks 321. In use, the supporting component 3 is movably snapped into the snap-fit ​​holes 311 of the support frame 31 through the snap-fit ​​blocks 321. The spacing between the two support frames 31 can be adjusted according to the width of the glass substrate, thus eliminating the need to replace the overall supporting structure and adapting to the supporting needs of various specifications of liquid crystal substrates, improving the equipment's versatility.

[0057] Combination Figures 1-11As shown, the rinsing component 55 includes a water tank 551, a first water pipe 552, and a second water pipe 553. The water tank 551 is fixedly installed on one side of the cover 53 and is connected to an external water pump. The first water pipe 552 is fixedly installed inside the cover 53 on the side of the second conveying roller brush 54 away from the main body 21 of the cleaning tank. The first water pipe 552 has a downward-sloping outlet hole on the side near the main body 21 of the cleaning tank. The second water pipe 553 is fixedly installed inside the rinsing tank 51, below the first water pipe 552. The second water pipe 553 has an outlet hole on the side near the main body 21 of the cleaning tank. The main body 21 has an upward-sloping water outlet, and one end of the water pipe 552 and the water pipe 553 are connected to the water tank 551. The water pipe 552 of the rinsing component 55 has a downward-sloping water outlet, and the water pipe 553 has an upward-sloping water outlet. In use, the two pipes spray rinsing liquid obliquely from above and below the glass substrate, respectively, to form a cross-rinsing effect, thereby covering the entire area of ​​the upper and lower surfaces of the glass substrate. The water tank 551 provides a stable water source for the water pipes 552 and 553 to ensure uniform rinsing pressure. Combined with the brushing action of the conveyor roller brush 52 and the conveyor roller brush 54, the rinsing cleanliness is improved.

[0058] Combination Figures 1-11As shown, the gripping and positioning assembly 43 includes a movable plate 431, a driving component 432, a spring telescopic rod 433, a lower connecting plate 434, a hinge plate 435, an upper connecting plate 437, a drive rod 438, and a motor 436. Two movable plates 431 are horizontally slidably mounted on the bottom of the movable block 42. A driving component 432, connected to both movable plates 431, is mounted on the movable block 42 to cause the two movable plates 431 to slide in opposite directions or stop sliding. Vertical telescopic rods are symmetrically fixed to the bottom of the movable plates 431. An upper connecting plate 437 is fixedly mounted to the bottom of the two telescopic rods. A drive rod 438 connected to the upper connecting plate 437 is fixedly mounted to the bottom of the movable plate 431. Vertical spring telescopic rods 433 are symmetrically fixed to the bottom of the upper connecting plate 437. A drive rod 438 connected to the upper connecting plate 437 is fixedly mounted to the bottom of the two spring telescopic rods 433. A lower connecting plate 434 of the same width as 437 is provided. A hinge plate 435 is hinged to the lower connecting plate 434 via a hinge shaft. A mounting groove is provided on one side of the lower connecting plate 434. One end of the hinge shaft extends into the mounting groove. A motor 436 for driving the hinge shaft to rotate is fixedly installed in the mounting groove. A sealing plate for sealing the opening end of the mounting groove is fixedly installed at the end of the lower connecting plate 434. A bidirectional force measuring component 6 connected to the lower connecting plate 434 is installed on the moving plate 431. In use, the two moving plates 431 are driven to slide in opposite directions by the driving component 432, thereby adapting to substrates of different widths. The hinge plate 435 is driven to rotate by the motor 436 to achieve lifting and pressing positioning of the glass substrate. The bidirectional force measuring component 6 provides structural support for weight detection and bending strength detection, so that the overall structure of the gripping and positioning component 43 has gripping, positioning, detection and adaptation functions.

[0059] Combination Figures 1-11 As shown, the driving component 432 includes a bidirectional threaded rod 4321 that is horizontally rotatably mounted on the moving block 42. The bidirectional threaded rod 4321 is threadedly connected to two moving plates 431. A motor 4 for driving the bidirectional threaded rod 4321 to rotate is fixedly mounted on the moving block 42. In use, when the motor 4 drives the bidirectional threaded rod 4321 to rotate, the two moving plates 431 slide synchronously in opposite directions, ensuring that the force on both sides of the glass substrate is uniform during gripping, the gripping position is symmetrical, and the stability and accuracy of substrate gripping are improved.

[0060] Combination Figures 1-11As shown, the bidirectional force measuring component 6 includes a lower fixed frame 61 fixedly installed on the lower connecting plate 434. Slide grooves are provided on both sides of the lower fixed frame 61. A sliding plate 62 is vertically slidably installed on the lower fixed frame 61 within the slide grooves. A connecting frame 63 with an inverted U-shaped longitudinal section is fixedly installed on the two sliding plates 62 inside the lower fixed frame 61. An upper fixed frame 64, movably sleeved on the outside of the connecting frame 63, is fixedly installed at the bottom of the upper connecting plate 437. The top of the connecting frame 63 is in contact with the inner top wall of the upper fixed frame 64. A guide rod 65 movably passes through the inner bottom wall of the lower fixed frame 61 inside the connecting frame 63. A positioning frame 66 with a U-shaped cross-section is fixedly installed on the top of the guide rod 65. The part extends to both sides of the upper fixed frame 64. Positioning component 67 is installed on the positioning frame 66. Positioning component 67 is used to position or cancel the positioning between the positioning frame 66 and the upper fixed frame 64. Positioning component 68 is installed on the lower connecting plate 434. Positioning component 68 is used to position or cancel the positioning between the lower connecting plate 434 and the slide plate 62. A pressure sensor 69 is fixedly installed on the inner bottom wall of the positioning frame 66 and fits against the inner top wall of the connecting frame 63. In use, the pressure sensor 69 senses the change of force and, in conjunction with positioning component 67 and positioning component 68, realizes the switching between two detection modes. The same structure adapts to two detection needs, and the switching is convenient. There is no need to set up two additional detection structures, which simplifies the complexity of the equipment.

[0061] Combination Figures 1-11As shown, the positioning component 67 includes a bracket 671 and a drive rod 672. Both sides of the positioning frame 66 have through holes, and both sides of the upper fixing frame 64 have positioning holes 641. A bracket 671 is fixedly installed on the positioning frame 66 outside the through holes. A drive rod 672 is fixedly installed on the bracket 671. The piston rod of the drive rod 672 can movably pass through the through holes and be inserted into the positioning holes 641, engaging with the upper fixing frame 64. The positioning component 68 includes a bracket 681, a locking plate 682, and a drive rod 683. A bracket 681 is fixedly installed on the lower connecting plate 434 outside the sliding plate 62. A locking hole 621 is provided at one end of the sliding plate 62 near the bracket 681. A horizontally movable through-hole 672 allows for insertion into the locking hole 641. The locking plate 682, which engages with the slide plate 62 within the locking hole 621, has a drive rod 683 fixedly mounted on the bracket 681 to drive the locking plate 682 to slide. In use, the positioning component 67 drives the piston rod to be inserted into the positioning hole 641 via the drive rod 672, thereby quickly locking or unlocking the positioning frame 66 and the upper fixed frame 64. The positioning component 68 drives the locking plate 682 to be inserted into the locking hole 621 via the drive rod 683, thereby quickly locking or unlocking the lower connecting plate 434 and the slide plate 62. Through the cooperation of the positioning component 67 and the positioning component 68, the structure is stable and the test data is accurate during the testing process. When switching the testing mode, locking or unlocking can be completed simply by controlling the extension and retraction of the drive rod 672 and the drive rod 683, which is convenient and improves the testing efficiency.

[0062] Working principle and usage process of this invention:

[0063] When conveying the glass substrate to be cleaned, the glass substrate to be cleaned is guided to the top of the conveying roller 12 on the conveying frame 11. Once the multiple motors on the conveying frame 11 are turned on, the multiple conveying rollers 12 rotate to convey the glass substrate to the main body 21 of the cleaning tank.

[0064] When the glass substrate is transferred into the main body 21 of the cleaning tank, the moving block 42 is slid on the guide rail 41 by the electric slider, so that the moving block 42 is positioned directly above the glass substrate at the top of the multiple conveying rollers 12. The upper connecting plate 437 is moved down by the two drive rods 438 respectively, and the lower connecting plate 434 is moved down by the spring telescopic rod 433, so that the two hinge plates 435 are inserted to the outside of both sides of the glass substrate and located below the glass substrate. The hinge plates 435 are rotated around the hinge axis by the two motors 436, so that the free ends of the two hinge plates 435 are close to each other. When the two hinge plates 435 are rotated to a horizontal position, the control motor 436 stops working, and the control motor 4 makes the bidirectional threaded rod 4321 rotate on the moving block 42, so that the two moving plates 431 slide in opposite directions and are close to each other, so that the two lower connecting plates 434 are respectively attached to both sides of the glass substrate. At this time, the two drive rods 438 are controlled to move the two upper connecting plates 437 upward synchronously, so that the glass substrate can be lifted upward.

[0065] When ultrasonically cleaning a glass substrate, according to the width of the glass substrate, two support brackets 31 are respectively fitted onto the outside of two locking blocks 321 on opposite sides through the locking holes 311 at the bottom of the support brackets 31, so that the distance between the two support brackets 31 is less than the width of the glass substrate. Then, through the cooperation of electric slider one, two drive rods one 438 and two motors 436, the glass substrate can be transported into the cleaning tank body 21 and placed on top of the two support brackets 31. The ultrasonic generator 22 is controlled to work, and the glass substrate placed in the cleaning tank body 21 can be ultrasonically cleaned. During this process, the flow regulating valve one 231 and the flow regulating valve two 241 are controlled by the PLC control system to realize real-time control of the cleaning dosage in the cleaning tank body 21.

[0066] After the glass substrate is ultrasonically cleaned, similarly, by cooperating with the electric slider 1, two drive rods 438 and two motors 436, the glass substrate can be transferred to the conveying roller brush 52 located on the outside of the cover 53 and placed on the rinsing tank 51. By controlling multiple motors 2 to rotate the conveying roller brush 52, the glass substrate can be conveyed to the inside of the cover 53. During this process, the external water supply pump is controlled to supply water to the water tank 551. The water enters multiple water pipes 552 and multiple water pipes 553, and then is discharged through the water outlets on the water pipes 552 and 553. When the glass substrate is conveyed to the inside of the cover 53, the water discharged through the water outlets on the water pipes 552 and 553 can achieve the rinsing effect on the surface of the glass substrate, thereby completing the cleaning operation of the glass substrate.

[0067] During the transfer of the glass substrate from the conveyor roller 12 to the main body 21 of the cleaning tank, the two drive rods 672 are controlled to move their piston rods outward from their cylinders, so that the piston rods of the drive rods 672 are inserted into the positioning holes 641, thus locking and positioning the two drive rods 672 with the upper fixed frame 64. Meanwhile, the two drive rods 683 are controlled to slide the locking plates 682 on the bracket 681, so that the ends of the two locking plates 682 are respectively inserted into the two locking holes 621, thus positioning the two locking plates 682 with the two sliding plates 62. At this time, under the gravity of the glass substrate, a downward force is applied to the two hinge plates 435, thereby causing the lower connecting plate 434 to move downward along the two spring telescopic rods 433. When the lower connecting plate 434 moves downward, the connecting frame 63 is moved downward through the two sliding plates 62. The connecting frame 63 applies a downward force to the pressure sensor 69, and the pressure sensor 69 detects a change in the signal. Based on the change in the signal detected by the pressure sensor 69, the gravity value applied by the glass substrate to the two hinge plates 435 can be determined, thus achieving the effect of detecting the weight of the glass substrate.

[0068] The glass substrate is transported into the main body 21 of the cleaning tank and placed on top of the two support frames 31. During ultrasonic cleaning of the glass substrate, the two hinge plates 435 are moved above the glass substrate and symmetrically positioned on the two support frames 31 by the cooperation of the electric slider 1, the two drive rods 438, and the two motors 436. At this time, the two motors 436 rotate the hinge plates 435 around the hinge axis to a vertical position, and the two drive rods 438 move the upper connecting plate 437 downward so that the hinge plates 435 contact the top of the glass substrate. This achieves the effect of pressing and positioning the glass substrate by the two hinge plates 435, improving the stability of the glass substrate during ultrasonic cleaning. During this process, the two drive rods 672 are controlled to move the piston rods of the drive rods 672 into their cylinders, so that the piston rods of the drive rods 672 are hidden inside the perforations, eliminating the positioning between the positioning frame 66 and the upper fixed frame 64. The two drive rods 683 are controlled to slide the snap-fit ​​plate 682 on the bracket 681, so that the ends of the two snap-fit ​​plates 682 are respectively moved to the outside of the two slide plates 62, canceling the snap-fit ​​state between the snap-fit ​​plate 682 and the slide plate 62. At this time, when the upper connecting plate 437 is moved downward by the two drive rods 438, under the reverse force, the hinge plate 435 and the lower connecting plate 434 move upward along the spring telescopic rod 433. The lower fixed frame 61 and the positioning frame 66 push the pressure sensor 69 upward to form a contact with the upper fixed frame 64. The pressure sensor 69 changes the force detection signal, so the pressure value applied to the glass substrate can be known. Thus, by cooperating with the pressure sensor 69, the pressure value applied to the glass substrate can be quantitatively applied. If the bending strength of the glass substrate is not qualified, the glass substrate will be damaged, thus achieving the effect of testing the bending strength of the glass substrate.

[0069] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for processing and cleaning a liquid crystal substrate, characterized in that: The cleaning method includes the following steps: Step 1: Glass substrate transport stage: The liquid crystal substrate to be cleaned is transported to one side of the ultrasonic cleaning tank using a transport component. The ultrasonic cleaning tank is equipped with a support component. Step 2: Glass substrate transfer stage: The liquid crystal substrate on the conveying component is transferred to the ultrasonic cleaning tank by the material transfer mechanism, and the glass substrate is placed on the supporting component. Step 3: Ultrasonic cleaning stage: The glass substrate placed on the supporting component is pressed and positioned by the material transfer mechanism; Step 4: Roller brush rinsing stage: The glass substrate on the supporting component is transferred to the roller brush rinsing mechanism by the material transfer mechanism. The roller brush rinsing mechanism rinsing the glass substrate by roller brush and then conveying it to the external drying equipment.

2. The liquid crystal substrate processing and cleaning method according to claim 1, characterized in that: In step two, during the transfer of the liquid crystal substrate from the conveying component to the ultrasonic cleaning tank by the transfer mechanism, the weight of the glass substrate is detected by the transfer mechanism.

3. The liquid crystal substrate processing and cleaning method according to claim 1, characterized in that: In step three, during the pressing and positioning of the glass substrate placed on the supporting component by the material transfer mechanism, the bending strength of the glass substrate is detected by the material transfer mechanism.

4. A liquid crystal substrate processing and cleaning equipment, characterized in that: The liquid crystal substrate processing and cleaning method according to any one of claims 1-3, wherein the conveying component includes a conveying frame, a conveying roller is rotatably mounted on the top of the conveying frame in a linear array in the conveying direction, and a motor for driving the conveying roller to rotate is fixedly mounted on the conveying frame. The ultrasonic cleaning tank includes a cleaning tank body, an ultrasonic generator, an inlet pipe, and an outlet pipe. One side of the conveyor frame has the cleaning tank body with an open top. An ultrasonic generator is installed at the bottom of the cleaning tank body, acting within it. An inlet pipe is connected through the top of one side of the cleaning tank body, and an outlet pipe is connected through the bottom of the other side. A flow regulating valve is fixedly installed on the inlet pipe, and a flow regulating valve is fixedly installed on the outlet pipe. The supporting components include support frames symmetrically arranged within the cleaning tank body. The roller brush rinsing mechanism includes a rinsing pool, a first conveying roller brush, a cover, a second conveying roller brush, and rinsing components. The main body of the rinsing pool has a rinsing pool with an open top on the side away from the conveyor frame. The first conveying roller brush is installed in a horizontal linear array at the top of the inner side of the rinsing pool. A second motor for driving the first conveying roller brush to rotate is fixedly installed on the rinsing pool. A cover is fixedly installed on one side of the top of the rinsing pool. The second conveying roller brush is installed in a rotatable manner at the bottom of the inner side of the cover and above the first conveying roller brush. A third motor for driving the second conveying roller brush to rotate is fixedly installed on the cover. A rinsing component connected to the rinsing pool is installed on the cover. The material transfer mechanism includes a guide rail, a moving block, and a gripping and positioning component. A guide rail is provided above the conveyor frame and the main body of the cleaning tank. The end of the guide rail extends to one side of the cover. A moving block is slidably installed at the bottom of the guide rail in a horizontal direction. An electric slider connected to the moving block is fixedly installed on the guide rail. A gripping and positioning component is installed on the moving block. The gripping and positioning component is used to grip and position the glass substrate.

5. The liquid crystal substrate processing and cleaning equipment according to claim 4, characterized in that: The supporting component also includes a snap-fit ​​component, which includes snap-fit ​​units symmetrically installed on the inner bottom wall of the main body of the cleaning tank. Each snap-fit ​​unit includes a snap-fit ​​block fixed horizontally on the inner bottom wall of the main body of the cleaning tank. The longitudinal section of the support frame is inverted U-shaped. Snap-fit ​​holes are provided at both ends of the bottom of the support frame. The support frame is movably fitted onto the outside of two symmetrical snap-fit ​​blocks through the two snap-fit ​​holes, and the support frame is snapped into the two snap-fit ​​blocks.

6. The liquid crystal substrate processing and cleaning equipment according to claim 4, characterized in that: The rinsing components include a water tank, a water pipe 1, and a water pipe 2. The water tank is fixedly installed on one side of the cover. The water pipe 1 is fixedly installed inside the cover and on the side of the conveyor roller brush 2 away from the main body of the cleaning tank. The water pipe 1 has a water outlet 1 that slopes downwards along the direction of the main body of the cleaning tank on the side close to the main body of the cleaning tank. The water pipe 2 is fixedly installed inside the rinsing tank and below the water pipe 1. The water pipe 2 has a water outlet 2 that slopes upwards along the direction of the main body of the cleaning tank on the side close to the main body of the cleaning tank. One end of both the water pipe 1 and the water pipe 2 is connected to the water tank.

7. The liquid crystal substrate processing and cleaning equipment according to claim 4, characterized in that: The gripping and positioning assembly includes a moving plate, a driving component, a spring telescopic rod, a lower connecting plate, a hinge plate, an upper connecting plate, a drive rod, and a motor. Two moving plates are horizontally slidably mounted on the bottom of the moving block. A driving component connected to both moving plates is mounted on the moving block, used to make the two moving plates slide in opposite directions or stop sliding. Vertical telescopic rods are symmetrically fixed to the bottom of the moving plates. An upper connecting plate is fixedly mounted to the bottom of the two telescopic rods. A drive rod connected to the upper connecting plate is fixedly mounted to the bottom of the moving plate. Vertical spring telescopic rods are symmetrically fixed to the bottom of the upper connecting plate. A lower connecting plate of the same width as the upper connecting plate is fixedly mounted to the bottom of the two spring telescopic rods. A hinge plate is hinged to the lower connecting plate via a hinge shaft. A mounting groove is opened on one side of the lower connecting plate, and one end of the hinge shaft extends into the mounting groove. A motor for driving the hinge shaft to rotate is fixedly mounted in the mounting groove. A sealing plate for sealing the opening of the mounting groove is fixedly mounted at the end of the lower connecting plate. A bidirectional force measuring component connected to the lower connecting plate is mounted on the moving plate.

8. The liquid crystal substrate processing and cleaning equipment according to claim 7, characterized in that: The driving component includes a bidirectional threaded rod that is horizontally rotatably mounted on the moving block. The bidirectional threaded rod is threadedly connected to both moving plates. A motor for driving the bidirectional threaded rod to rotate is fixedly mounted on the moving block.

9. The liquid crystal substrate processing and cleaning equipment according to claim 7, characterized in that: The bidirectional force measuring component includes a lower fixed frame fixedly installed on the lower connecting plate. Slide grooves are provided on both sides of the lower fixed frame. A sliding plate is vertically mounted on the lower fixed frame within the slide grooves. A connecting frame with an inverted U-shaped longitudinal section is fixedly installed on the two sliding plates inside the lower fixed frame. An upper fixed frame is movably fitted onto the outside of the connecting frame and fixedly installed at the bottom of the upper connecting plate. The top of the connecting frame is flush with the inner top wall of the upper fixed frame. A guide rod extends movably through the inner bottom wall of the lower fixed frame inside the connecting frame. A positioning frame with a U-shaped cross-section is fixedly installed at the top of the guide rod. The top of the positioning frame extends to both sides of the upper fixed frame. A positioning component one is installed on the positioning frame, used to position or cancel the positioning between the positioning frame and the upper fixed frame. A positioning component two is installed on the lower connecting plate, used to position or cancel the positioning between the lower connecting plate and the sliding plate. A pressure sensor, flush with the inner top wall of the connecting frame, is fixedly installed on the inner bottom wall of the positioning frame.

10. A liquid crystal substrate processing and cleaning device according to claim 9, characterized in that: The positioning component one includes a bracket one and a drive rod two. Both sides of the positioning frame have through holes, and both sides of the upper fixed frame have positioning holes. A bracket one is fixedly installed on the positioning frame outside the through holes. A drive rod two is fixedly installed on the bracket one. The piston rod of the drive rod two can movably pass through the through holes and be inserted into the positioning holes, engaging with the upper fixed frame. The positioning component two includes a bracket two, a locking plate, and a drive rod three. A bracket two is fixedly installed on the lower connecting plate outside the sliding plate. A locking hole is opened at one end of the sliding plate near the bracket two. A locking plate, which can be inserted into the locking hole and engage with the sliding plate, movably passes through the bracket two in a horizontal direction. A drive rod three, used to drive the locking plate to slide, is fixedly installed on the bracket two.

Images