Glass substrate post-processing device and control method, control system

Abstract

The disclosure provides a glass substrate post-processing device and a control method and system. The glass substrate post-processing device comprises at least one set of repair post-processing assembly, and the repair post-processing assembly comprises: a grinding stone for polishing a grinding wheel for grinding a glass substrate; a first driving mechanism, the output end of the first driving mechanism is fixed with the grinding stone, and the grinding stone is driven to approach or move away from the grinding wheel; a limiting mechanism, the limiting mechanism comprises a limiting hole through which the grinding stone can pass, and the first driving mechanism drives the grinding stone to move through the limiting hole to approach or move away from the grinding wheel; and a clamping device arranged at the limiting hole of the limiting mechanism, used for clamping the grinding stone when the grinding stone polishes the grinding wheel. Through the cooperation of the grinding stone, the first driving mechanism, the limiting mechanism and the clamping device, the automatic polishing process is improved, and the stability and controllability of the grinding stone polishing the grinding wheel are improved.

Description

Technical Field

[0001] This disclosure relates to the field of glass substrate processing technology, and in particular to a glass substrate post-processing apparatus and control method and control system. Background Technology

[0002] In the production of optoelectronic display glass substrates, such as OLED and LTPS glass substrates produced by the overflow-pull method, the molten glass material overflows and is pulled down to form a board, which is then cut into individual pieces by a cutting machine below the forming furnace and flows into subsequent processing steps. During the post-processing of glass substrates, the edges and corners of the semi-finished glass need to be ground. During the grinding process, prolonged grinding can cause the diamond and other materials in the grinding wheel to become passivated, and glass debris will remain inside the grooves of the grinding wheel. Continuing to grind the glass substrate will cause grinding defects such as chipping and edge burning at the edges and corners. Therefore, the grinding wheel grooves must be repaired with a grinding stone at regular intervals.

[0003] Traditional repair methods involve manually grinding the grooves of a grinding wheel with a handheld grinding disc. However, it is difficult to align the handheld grinding disc with the grooves, and the grinding process is prone to vibration, affecting the repair effect and increasing the risk of injury. Existing repair devices also suffer from poor stability and control. Summary of the Invention

[0004] One of the technical problems to be solved by this disclosure is to improve the grinding effect on glass substrates by providing a post-processing assembly with a well-controllable and compact grinding wheel during the post-processing of glass substrates.

[0005] To address the aforementioned technical problems, in a first aspect, embodiments of this disclosure provide a glass substrate post-processing apparatus, comprising at least one set of post-processing components. Each post-processing component includes: a grinding stone for polishing a polishing wheel used to grind the glass substrate; a first driving mechanism, the output end of which fixes the grinding stone to drive it closer to or away from the polishing wheel; a limiting mechanism including a limiting hole through which the grinding stone can pass, the first driving mechanism driving the grinding stone to move through the limiting hole to approach or move away from the polishing wheel; and a clamping device disposed at the limiting hole of the limiting mechanism for clamping the grinding stone when it polishes the polishing wheel.

[0006] In some embodiments, a clamp is provided at the output end of the first drive mechanism, the end of the grinding stone away from the grinding wheel is shaped to fit the clamp, and / or the end of the limiting mechanism away from the grinding wheel is fixedly connected to the first drive mechanism.

[0007] In some embodiments, the limiting mechanism further includes a push rod, which is perpendicular to the length direction of the limiting mechanism and fixedly connected thereto, and a reinforcing block is provided at the connection point.

[0008] In some embodiments, the post-processing assembly further includes: a spraying part disposed at the limiting hole and aligned with the contact surface between the grinding stone and the grinding wheel to spray out liquid of a certain width; and / or a fixing part, the fixing part including a first fixing surface and a second fixing surface, the first fixing surface being used to fix the grinding wheel, and the second fixing surface being movably connected to the push rod via a slide rail.

[0009] In some embodiments, the glass substrate post-processing apparatus further includes: at least one set of second drive mechanisms and connecting rods; the connecting rods are simultaneously fixed to multiple push rods, and when the second drive mechanism drives the connecting rods to move, it simultaneously drives multiple post-processing components to move.

[0010] In some embodiments, the clamping device is a pneumatic gripper.

[0011] Secondly, embodiments of this disclosure provide a control method for controlling the above-mentioned glass substrate post-processing apparatus, comprising the following steps: in response to the thickness signal and material signal of the glass substrate processed by the grinding wheel, determining the repair interval, repair amount, and repair driving force of the post-processing apparatus; and in response to the wear prediction signal of the grinding wheel, controlling a first driving mechanism to drive the grinding stone to grind the grinding wheel according to the repair driving force and the repair interval until the wear amount of the grinding stone reaches the repair amount.

[0012] In some embodiments, during the repair process, the clamping device is controlled to clamp the grinding stone in response to a wear prediction signal of the grinding wheel.

[0013] In some embodiments, after the grinding wheel is repaired, the following steps are further included: controlling the repaired grinding wheel to work and grind the glass substrate; in response to the defect detection signal of the glass substrate, adjusting one or more of the repair driving force, repair interval and repair amount, and repairing the grinding wheel again, wherein if the glass substrate still has defects after repairing the grinding wheel n times, an alarm signal is issued, where n is a positive integer.

[0014] Thirdly, embodiments of this disclosure provide a control system for a glass substrate post-processing apparatus, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the aforementioned control method for the glass substrate post-processing apparatus.

[0015] Through the above technical solution, the glass substrate post-processing apparatus provided in this disclosure, through the cooperation of a grinding stone, a first driving mechanism, a limiting mechanism, and a clamping device, improves the automation of the grinding process, enhances the stability and controllability of the grinding stone grinding wheel, and thus improves the grinding effect on the glass substrate. The clamping device reduces the vibration and heat generation of the grinding stone, increases the service life of each component, and reduces the wear and tear on the glass substrate. For specific beneficial effects, please refer to the detailed embodiments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure 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 this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the post-processing component disclosed in this embodiment;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping device and the spraying part disclosed in the embodiments of this disclosure;

[0019] Figure 3 This is a schematic diagram of the structure when the post-processing component disclosed in this embodiment is disposed on one side of the glass substrate;

[0020] Figure 4 This is a schematic diagram of the structure when the post-processing components disclosed in this embodiment are disposed on both sides of the glass substrate;

[0021] Figure 5 This is a schematic diagram of the basic flow of the control method for the post-processing device disclosed in this embodiment.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Grinding wheel assembly; 11. Grinding motor; 12. Grinding wheel; 13. Fixing part; 14. Slide rail; 2. Post-processing assembly; 21. First drive mechanism; 211. First drive rod; 212. Clamping jaw; 22. Clamping device; 221. Cylinder; 222. Clamping block; 23. Grinding stone; 24. Limiting mechanism; 241. Limiting hole; 25. Push rod; 26. Reinforcing block; 27. Spraying part; 271. Spray hole; 3. Second drive mechanism; 31. Second motor; 32. Second drive rod; 33. Connecting rod; 4. Glass substrate; 5. Control host; 51. Signal line and air pipe. Detailed Implementation

[0024] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0025] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0026] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0028] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0029] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0031] After the glass substrate semi-finished product is manufactured, it needs to undergo post-processing, such as edge grinding and cutting into blocks, to obtain glass substrates that meet the requirements. Generally, a grinding wheel 12 is used to grind its edges or angled areas. The grinding wheel assembly 1 includes a grinding wheel 12 and a grinding motor 11. The grinding wheel 12 is mounted on the grinding motor 11 and rotates under the drive of the grinding motor 11, grinding the edges of the semi-finished glass substrate. However, since glass fragments easily remain in the grooves of the grinding wheel 12, it needs to be ground with a grinding stone 23 or a repair stone. Manually holding the repair stone to repair the grinding wheel 12 is not only unsafe but also lacks control. For example, to achieve the desired grinding effect, the fitter must constantly adjust the grip strength and observe the workpiece to prevent over-grinding or under-grinding, while simultaneously holding the workpiece firmly with both hands to maintain the grinding angle and prevent deviation and unstable grinding. To address these issues, this invention proposes a glass substrate post-processing device, control method, and control system. Through an automated and standardized control process, the repair efficiency of the grinding wheel 12 is improved, thereby perfecting the glass substrate post-processing steps.

[0032] Please see Figure 1 The glass substrate post-processing apparatus of the present invention includes at least one set of post-processing components 2, which includes: a grinding stone 23, a first driving mechanism 21, a limiting mechanism 24, and a clamping device 22. The grinding stone 23, also known as a repair stone, is used to polish the polishing wheel 12 of the glass substrate 4. When the polishing wheel 12 polishes the glass substrate 4 with its grooves, the grinding stone 23 aligns with the grooves of the polishing wheel 12 for polishing. The output end of the first driving mechanism 21 fixes the grinding stone 23, driving the grinding stone 23 to move closer to or away from the polishing wheel 12.

[0033] Specifically, when the first drive mechanism 21 is activated, the first drive rod 211 extends, causing the grinding stone 23 to approach the grinding wheel 12; when the first drive rod 211 retracts, the grinding stone 23 moves away from the grinding wheel 12. The first drive mechanism 21 can provide driving force pneumatically, electrically, hydraulically, or mechanically. The limiting mechanism 24 includes a limiting hole 241 through which the grinding stone 23 can pass. The limiting hole 241 serves as a channel for the grinding stone 23 to pass through, and the first drive mechanism 21 drives the grinding stone 23 to move through the limiting hole 241 to approach or move away from the grinding wheel 12. If the first drive mechanism 21 uses a single force to control the grinding stone 23 to contact the grinding wheel 12 for continuous grinding, excessive force can easily lead to over-grinding, rapid wear of the grinding stone 23, and a risk of damage to the grinding wheel 12 from the repair stone. Furthermore, the high heat generated requires significant cooling. Therefore, the limiting mechanism 24 can also provide a control fulcrum, allowing other devices to be deployed on the limiting mechanism 24 to improve the repair effect when the grinding stone 23 repairs the grinding wheel 12. A clamping device 22 is provided on at least the limiting mechanism 24. The clamping device 22 is located at the limiting hole 241 of the limiting mechanism 24 and is used to clamp the grinding stone 23 when the grinding stone 23 grinds the grinding wheel 12, thereby preventing the grinding stone 23 from vibrating when grinding the grinding wheel 12. The clamping effect on the grinding stone 23 can be changed by controlling the clamping interval or clamping duration of the clamping device 22. By clamping and releasing the grinding stone at certain intervals, the clamping device 22 avoids overheating and wear of the grinding wheel 12 caused by prolonged grinding, and allows the grinding stone 23 to slow down slowly, generating less heat and extending its service life. The first drive mechanism 21 provides the main thrust, while the clamping device 22 controls the thrust, achieving the effect of pausing and advancing while grinding the workpiece.

[0034] In some embodiments, the limiting mechanism 24 uses a hollow tube as a limiting hole 241 through which the grinding stone 23 passes. To enhance the stability and movement of the device, the end of the tube away from the grinding wheel 12 is connected to the first drive mechanism 21. The tube can be cylindrical or cuboid. A clamping device 22 is provided on the side wall of the tube. By providing a hole in the side wall of the tube, the clamping part of the clamping device 22 can pass through the hole and enter the limiting hole 241 to contact the grinding stone 23. When the clamping device 22 is a pneumatic gripper, the clamping part is the clamping block 222 of the pneumatic gripper, and the cylinder 221 provides driving force to the clamping block 222.

[0035] Please see Figure 2 In this embodiment, two clamping blocks 222 are provided and arranged opposite to each other. By activating the cylinder 221 of the pneumatic gripper, the two clamping blocks 222 move closer to each other to clamp or tighten the grinding stone 23, and the two clamping blocks 222 move further apart to release or untie the grinding stone 23. The pneumatic gripper can be selected from various models available on the market, such as NMHL2, NMHZ2, etc.

[0036] In some embodiments, please refer to Figure 1 The push rod 25 can be positioned at the limiting mechanism 24, which is connected to the push rod 25 in a perpendicular relationship. Specifically, the push rod 25 is perpendicular to the length direction of the tube and is fixedly connected to it, with a reinforcing block 26 at the connection point. When the limiting hole 241 is the tube, the length direction of the push rod 25 is perpendicular to the length direction of the tube. The push rod 25 can be restricted by the slide rail 14, allowing it to reciprocate along its length. The reinforcing block 26 is a reinforcing triangular block to prevent the reaction force of the grinding stone 23 from changing the vertical angle of the structure, thereby preventing the grinding stone 23 from shifting its angle during repair work.

[0037] The proper securing of the grinding stone 23 is crucial in the repair process. Manually holding it with both hands requires considerable force to maintain its position and ensure accurate repair angles. Pushing the stone linearly without proper securing can cause it to deviate due to excessive force during grinding. Therefore, this application employs a push rod 25 in conjunction with a limiting mechanism 24 for secure fixing.

[0038] To provide better control over the reciprocating motion of the push rods 25, the glass substrate post-processing device further includes at least one set of second drive mechanisms 3 and connecting rods 33. The connecting rods 33 are simultaneously fixed to multiple push rods 25 and can drive the multiple push rods 25 to move. When the second drive mechanism 3 drives the connecting rods 33 via the second drive rod 32, it simultaneously drives multiple post-processing components 2 to move, such as controlling the multiple post-processing components 2 to move forward or backward simultaneously. In this embodiment, the output shaft of the second motor 31, i.e., the second drive rod 32, is a lead screw, and the connecting rod 33 has a corresponding threaded hole through which the lead screw passes. When the grinding wheel 12 needs repair, the second motor 31 drives the lead screw to rotate, and the connecting rod 33 pushes out multiple push rods 25, pushing the post-processing components 2 to the corresponding position on the grinding wheel 12. The second motor 31 can precisely control the advancing position to the millimeter level, making the contact point of the grinding stone 23 with the grinding wheel 12 controllable.

[0039] In some embodiments, the spray section 27 may be located at the limiting mechanism 24. See also... Figure 2 The spray section 27 is located at the limiting hole 241 and aligned with the contact surface between the grinding stone 23 and the grinding wheel 12. The spray section 27 has multiple nozzles 271 to spray liquid of a certain width. Furthermore, the water-spraying cooling surface formed by the nozzles 271 efficiently reduces the amount of cooling water used, lowers energy consumption, and avoids significant wastewater splashing, providing excellent protection for on-site equipment and the environment, resulting in a significant environmental benefit. When a pipe body is provided, the spray section is fixed to the side wall of the pipe body and continuously sprays water at a certain angle onto the contact surface between the grinding stone 23 and the grinding wheel 12. The water curtain sprayed by the spray section has a certain width, covering the contact surface and achieving cooling and dust removal effects.

[0040] In some embodiments, the local connection structure between components is improved to enhance the stability of the entire device.

[0041] For example, a clamp 212 is provided at the output end of the first drive mechanism 21. The end of the grinding stone 23 away from the grinding wheel 12 is shaped to fit the clamp 212, and the two are connected by a fixing screw. The clamp 212 can be U-shaped, in which case one end of the grinding stone 23 has a protruding end that fits the U-shaped clamp 212. In addition, in order to facilitate tightening or loosening of the grinding stone 23 and the first drive mechanism 21 at any time during repair, a gap is reserved at the connection between the limiting mechanism 24 and the first drive mechanism 21 to align with the fixing screw. The gap is used to insert a screwdriver to tighten or loosen the fixing screw on the piston rod head used to fix the grinding stone 23. Alternatively, the end of the limiting mechanism 24 away from the grinding wheel 12 is fixedly connected to the first drive mechanism 21.

[0042] For example, a fixing part 13 can be provided to enhance the connection between the grinding wheel 12 and the post-processing component 2. The fixing part 13 includes a first fixing surface and a second fixing surface. The first fixing surface is used to fix the grinding wheel 12, and the second fixing surface is movably connected to the push rod 25 through the slide rail 14. The fixing part 13 can adopt an L-shaped structure, with the first fixing surface and the second fixing surface perpendicular to each other. The grinding motor 11 is vertically fixed to the first fixing surface, and the grinding wheel 12 extends downward from the output end of the grinding motor 11 and is placed horizontally on one side of the edge of the glass substrate 4. The high-speed rotating grinding wheel 12 can perform grinding operations on the glass substrate 4 when it contacts it. The slide rail 14 is provided on the second fixing surface, and the push rod 25 can move back and forth in the horizontal plane through the slide rail 14, thereby driving the post-processing component 2 to move in the horizontal plane. When moving forward, the post-processing component 2 moves closer to the grinding wheel 12; when moving backward, the post-processing component 2 moves away from the grinding wheel 12.

[0043] In some embodiments, multiple grinding wheels 12 are disposed on a grinding platform to simultaneously grind the glass substrate 4. For example, there can be 4 to 6 grinding wheels 12. In the prior art, when different operators perform repairs, the speed of the repair stone varies, resulting in different repair effects. Furthermore, frequent repairs increase the labor intensity of the operators. The grinding platform containing multiple grinding wheels 12 has a compact overall structure. To repair all grinding wheels 12 simultaneously, there are high requirements for the structural simplicity and efficient control of the repair device. It must be convenient for repair without occupying space and affecting the subsequent processing of the glass substrate 4. For overall modification and synergistic effects of the grinding platform, please refer to [link to relevant documentation]. Figure 3 and Figure 4In the glass substrate post-processing apparatus proposed in this application, each grinding wheel 12 is provided with a corresponding post-processing component 2. The push rod 25 in the post-processing component 2 on the same side of the glass substrate 4 is fixed with the same connecting rod 33 and driven by the same second drive mechanism 3. This arrangement can improve the integration of the device, reduce space occupation and energy consumption, and has a good control effect. Specifically, when the grinding wheel 12 needs to be repaired, the second drive mechanism 3 is activated, driving the connected connecting rod 33 to move forward, thereby driving the push rod 25 to move forward along the slide rail 14, driving the limiting mechanism 24 and the grinding stone 23 inside it to move forward and align with the target grinding wheel 12. Then, the first drive mechanism 21 is activated, driving the grinding stone 23 to approach the grinding wheel 12 until it contacts it. The grinding wheel 12 rotates under the drive of the grinding motor 11, and is then polished by the grinding stone 23. During the above process, the clamping device 22 can clamp the grinding stone 23 according to a preset clamping interval or clamping time to reduce the vibration of the grinding stone 23, enhance its stability, and achieve a better repair effect. After the repair is completed, the first drive mechanism 21 drives the grinding stone 23 to retract, and then the second drive mechanism 3 drives the push rod 25 to move backward and return to the initial position.

[0044] To systematize and standardize the repair process of the grinding wheel 12, this invention also provides a method that, based on a post-processing device, controls the repair stone to systematically repair the grinding wheel 12. Compared to manual repair using the grinding stone 23 based on experience, this invention is more stable, safer, and more controllable. Please refer to... Figure 5 The control method for the glass substrate post-processing apparatus proposed in this invention includes the following steps: in response to the thickness signal and material signal of the glass substrate 4 processed by the grinding wheel 12, determining the repair interval, repair amount, and repair driving force of the post-processing apparatus; and in response to the wear prediction signal of the grinding wheel 12, controlling the first driving mechanism 21 to drive the grinding stone 23 to grind the grinding wheel 12 according to the repair driving force and the repair interval, until the wear amount of the grinding stone 23 reaches the repair amount. Specifically, it includes the following steps S0 to S3.

[0045] S0. Set up the control host 5 and computer software, equipped with a display screen and audible and visual alarm prompts. The control host 5 can be controlled by a PLC. The control host 5 mainly controls the running time of the first drive mechanism 21, the pneumatic gripper, and the second drive mechanism 3, and controls the start and stop of the injection section 27 and water pressure through signal lines and air pipes 51.

[0046] S1. Acquire signals and determine the repair interval, repair amount, and repair driving force of the subsequent processing device based on the signals. Acquire the thickness information of the glass substrate 4 to be processed by the grinding wheel 12 to obtain a thickness signal. The thickness of the glass substrate 4 can be measured using a laser thickness gauge. Acquire the material information of the glass substrate 4 to be processed by the grinding wheel 12 to obtain a material signal. Then, the control host 5 determines the corresponding values ​​of the repair interval, repair amount, and repair driving force according to a parameter comparison table for different board thicknesses and materials, based on the corresponding repair interval, repair amount, and pressure.

[0047] To reduce the frictional temperature between the grinding stone 23 and the grinding wheel 12 and extend the lifespan of the device, the grinding stone 23 is controlled to grind multiple times during each repair process. The interval between each grinding is the repair interval. The repair amount is the length consumed by the grinding stone 23 during this repair process. The pressure is the repair driving force, provided by the first driving mechanism 21. When the first driving mechanism 21 is a propulsion cylinder, the repair driving force refers to the air pressure of the propulsion cylinder. The specific values ​​vary depending on the thickness of the glass substrate 4. For example, for a glass substrate thickness of 0.5mm, the repair interval is 30s, the propulsion cylinder air pressure is 1.0MPa, and the repair amount is 2mm; for a substrate thickness of 0.4mm, the repair interval is 20s, the propulsion cylinder air pressure is 0.8MPa, and the repair amount is 1.5mm. In addition, the wear on the grinding wheel 12 varies depending on the material of the glass substrate. The repair force and repair amount required for OLED carrier glass are greater than those for TFT LCD glass substrates because OLED carrier glass has higher hardness and strength, and its edge grinding operation consumes more grinding wheel 12. For a 0.5mm thick TFT LCD glass substrate, the repair interval is 30 seconds, the cylinder pressure is 1.0MPa, and the repair amount is 2mm. For a 0.5mm thick OLED carrier glass substrate, the repair interval is 30 seconds, the cylinder pressure is 1.2MPa, and the repair amount is 2.5mm. The pressure adjustment range of the first drive mechanism 21 is determined according to the glass substrate, for example, 0.5-1.5MPa. Determining the above parameters, compared to relying on manual experience, greatly improves the repair efficiency and stability of the grinding wheel 12. When it is necessary to process glass substrates 4 of new materials or thicknesses, they can be repaired manually, and the repair parameter data can be recorded. This data can be used to train the data model and update the parameter comparison table of repair interval, repair amount, and pressure, so as to accurately match the repair force and repair amount of the grinding wheel 12.

[0048] S2. Obtain the wear prediction signal and control the first drive mechanism 21 to drive the grinding stone 23 to grind the grinding wheel 12 according to the repair driving force and the repair interval until the wear of the grinding stone 23 reaches the repair amount.

[0049] The wear prediction signal can be obtained by analyzing the time points when wear occurs within the past usage cycles of the grinding wheel 12. Specifically, by recording the time points when wear occurs within the usage cycle of the grinding wheel 12 and the usage cycle of the grinding wheel 12 for glass substrates 4 with different thicknesses (e.g., the grinding wheel 12 wears out in the first week of grinding OLED carrier glass or in the second week of grinding TFT LCD glass substrates), a data model is generated. This data model is used to obtain the wear prediction signal, which predicts the time point when the grinding wheel 12 will wear out next. When this time point is reached, a prompt is given, and the grinding stone 23 is controlled to grind the grinding wheel 12. This provides strict cycle prediction and control of the use of the grinding wheel 12, making this step predictive. In the existing technology, the grinding wheel 12 is only checked for repair when operators notice burning or chipping during glass substrate grinding, which is highly subjective. Furthermore, manually recording the usage time of the grinding wheel 12 is prone to errors.

[0050] When the wear prediction signal determines that the grinding wheel 12 needs to be polished, the control host 5 controls the second drive mechanism 3 to move forward, bringing the grinding stone 23 closer to the grinding wheel 12. Then, the first drive mechanism 21 is controlled to push or retract the grinding stone 23 at the repair interval and repair driving force determined by S1. During this process, the length of wear on the grinding stone 23 is detected and compared with the repair amount. Repair stops when the repair amount is reached. When the first drive mechanism 21 is a propulsion cylinder, when the post-processing device starts working, the control host 5 controls the propulsion cylinder with a small air pressure to make the grinding stone 23 contact the grinding wheel 12, and then immediately increases the air pressure to the required pressure (repair driving force). A sensor can be added to the side of the limiting mechanism 24 facing the grinding stone 23 to detect the used length of the grinding stone 23; operation stops when the grinding stone 23 is too short.

[0051] In addition, during the S2 process described above, to prevent the grinding stone 23 from vibrating and affecting the repair grinding wheel 12, the pneumatic grippers need to hold the grinding stone 23 according to a certain holding time and holding interval. The holding time is the duration during which the gripping blocks 222 attract each other and firmly hold the grinding stone 23; the holding interval is the time interval between the gripping blocks 222 attracting and releasing. For example, if the holding interval is 1 second and the holding time is 5-10 seconds, the pneumatic grippers release for 1 second every 5-10 seconds and then close again. This way, after the grinding stone 23 is consumed, it can be pushed forward by the first drive mechanism 21 to further maintain the grinding effect. With the precise control of the first drive mechanism 21 and the pneumatic grippers in the repair system, the grinding stone 23 achieves optimal repair effect on the grinding wheel 12, replacing manual repair and greatly improving the repair effect.

[0052] S3. After the grinding wheel 12 is repaired, the following steps are also included:

[0053] S31. Control the repaired grinding wheel 12 to work and grind the glass substrate. Grind the glass substrate again with the repaired grinding wheel 12 and perform defect detection on the glass substrate to obtain defect detection signals.

[0054] S32. In response to the defect detection signal of the glass substrate 4, adjust one or more of the repair driving force, repair interval, and repair amount to repair the grinding wheel 12 again. If defects still exist, it means that the grinding wheel 12 has not been repaired properly, and the parameters need to be changed again for repair. The display interface of the control host 5 can display the real-time status of the grinding wheel 12, repair records, and glass substrate grinding defect rate trend graph, which facilitates the parameter adjustment of the repair system.

[0055] In step S32, if defects still exist in the glass substrate 4 after repairing the grinding wheel 12 n times (n is a positive integer), an alarm signal is issued. For example, if defects such as glass edge burning are still detected after two consecutive repairs (n=2) of the grinding wheel 12, a red alarm is triggered, and personnel can adjust the parameters in step S1 or scrap the grinding wheel 12. Due to the stability of the repair effect of this repair system and device, if grinding defects still appear in the glass after repairing the grinding wheel 12, it is easier to determine whether the grinding wheel 12 has reached the scrapping standard. In contrast, manual repair requires repeated repairs of the grinding wheel 12 to test whether it is scrapped. This application can determine whether it is damaged or needs parameter adjustment after only two repairs, greatly improving the utilization efficiency of the grinding wheel 12.

[0056] The control system of the glass substrate post-processing apparatus of the present invention includes a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement a control method for the glass substrate post-processing apparatus.

[0057] The glass substrate post-processing apparatus, control method, and control system proposed in this invention can automate the repair of grinding wheels without manual intervention, ensuring speed, safety, and accuracy. Based on grinding data of glass substrates of different materials and thicknesses, a corresponding data model is trained, which serves as a constraint to determine control parameters for refined control. Simultaneously, for grinding platforms containing multiple grinding wheels, a suitable second drive component and push rod are provided to facilitate adjustment of the positional relationship between the grinding stones and grinding wheels, reducing space occupation and centralizing control. This enables rapid and systematic repair of multiple grinding wheels, significantly reducing downtime for repair operations. Through a well-automated control process, parameters and the status of each component are adjusted in real time, resulting in precise and efficient grinding wheel repair. This greatly shortens the cycle of frequent manual grinding wheel repairs, improves glass substrate processing efficiency, and reduces the defect rate of glass substrates, decreasing the edge burning / chipping rate by 30-40%. Furthermore, it reduces costs, for example, by reducing the consumption of repair stones by 20-30% and extending the life of grinding wheels by 30-40%.

[0058] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0059] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A glass substrate post-processing apparatus, characterized in that, Includes at least one set of post-processing components (2), said post-processing components (2) comprising: A grinding stone (23) is used to polish the grinding wheel (12) used to grind the glass substrate (4); The first drive mechanism (21) has the output end of which fixes the grinding stone (23) to drive the grinding stone (23) to move closer to or away from the grinding wheel (12). A limiting mechanism (24) comprising a limiting hole (241) through which the grinding stone (23) can pass, wherein the first driving mechanism (21) drives the grinding stone (23) to move through the limiting hole (241) to move closer to or further away from the grinding wheel (12); and A clamping device (22) is provided at the limiting hole (241) of the limiting mechanism (24) and is used to clamp the grinding stone (23) when the grinding stone (23) grinds the grinding wheel (12). The limiting mechanism (24) also includes a push rod (25). The glass substrate post-processing device further includes: at least one set of second drive mechanism (3) and connecting rod (33); the connecting rod is fixed to multiple push rods (25) at the same time, and when the second drive mechanism (3) drives the connecting rod (33) to move, it simultaneously drives multiple post-processing components (2) to move.

2. The glass substrate post-processing apparatus according to claim 1, characterized in that, The first drive mechanism (21) has a clamp (212) at its output end, and the end of the grinding stone (23) away from the grinding wheel (12) is shaped to fit the clamp (212), and / or The end of the limiting mechanism (24) away from the grinding wheel (12) is fixedly connected to the first driving mechanism (21).

3. The glass substrate post-processing apparatus according to claim 1, characterized in that, The push rod (25) is perpendicular to the length direction of the limiting mechanism (24) and is fixedly connected to it, and a reinforcing block (26) is provided at the connection.

4. The glass substrate post-processing apparatus according to claim 3, characterized in that, The post-processing component (2) also includes: A spraying section (27) is provided at the limiting hole (241) and aligned with the contact surface between the grinding stone (23) and the grinding wheel (12) to spray out a liquid of a certain width; and / or The fixing part (13) includes a first fixing surface and a second fixing surface. The first fixing surface is used to fix the grinding wheel (12), and the second fixing surface is movably connected to the push rod (25) through the slide rail (14).

5. The glass substrate post-processing apparatus according to claim 1, characterized in that, The clamping device (22) is a pneumatic gripper.

6. A control method for the glass substrate post-processing apparatus according to any one of claims 1 to 5, characterized in that, Includes the following steps: In response to the thickness signal and material signal of the glass substrate (4) processed by the grinding wheel (12), the repair interval, repair amount and repair driving force of the post-processing device are determined; as well as In response to the wear prediction signal of the grinding wheel (12), the first drive mechanism (21) is controlled to drive the grinding stone (23) to grind the grinding wheel (12) according to the repair driving force and the repair interval until the wear of the grinding stone (23) reaches the repair amount.

7. The control method for the glass substrate post-processing apparatus according to claim 6, characterized in that, During the repair process, in response to the wear prediction signal of the grinding wheel (12), the clamping device (22) is controlled to clamp the grinding stone (23).

8. The control method for the glass substrate post-processing apparatus according to claim 6, characterized in that, After the grinding wheel (12) is repaired, the following steps are also included: The repaired grinding wheel (12) is controlled to work and grind the glass substrate (4); In response to the defect detection signal of the glass substrate (4), one or more of the repair driving force, repair interval, and repair amount are adjusted, and the grinding wheel (12) is repaired again. If the glass substrate (4) still has defects after the polishing wheel (12) has been repaired n times, an alarm signal will be issued, where n is a positive integer.

9. A control system for a glass substrate post-processing apparatus, characterized in that, The device includes a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the control method of the glass substrate post-processing apparatus according to any one of claims 6 to 8.

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