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

Abstract

The invention provides a glass substrate post-processing device, a control method and a control system. The glass substrate post-processing device comprises at least one group of repair post-processing assemblies, and each repair post-processing assembly comprises a grinding stone used for grinding a grinding wheel for grinding a glass substrate; the grinding stone is fixed to the output end of the first driving mechanism, and the first driving mechanism is used for driving the grinding stone to be close to or away from the grinding wheel; the limiting mechanism comprises a limiting hole through which the millstone can penetrate, and the first driving mechanism drives the millstone to move through the limiting hole so as to be close to or away from the grinding wheel; and the clamping device is arranged at the position of the limiting hole of the limiting mechanism and used for clamping the grinding stone when the grinding stone grinds the grinding wheel. And through cooperation of the grinding stone, the first driving mechanism, the limiting mechanism and the clamping device, the automatic grinding procedure is improved, and the stability and controllability of grinding the grinding wheel through the grinding stone are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of glass substrate processing, and in particular to a glass substrate post-processing device, a control method, and a control system. Background Art

[0002] In the production of optoelectronic display glass substrates, such as OLED and LTPS glass substrates produced by the overflow down-draw method, the molten glass material overflows and is drawn down to form a plate, which is then cut into single pieces by the cutting machine under the forming furnace and flows into the post-processing process. In the post-processing production of glass substrates, the edges and corners of the semi-finished glass need to be ground. During the grinding process, long-term grinding will cause the diamond in the grinding wheel to passivate, and glass debris will remain in the groove of the grinding wheel. Continuing to grind the glass substrate will cause the edges and corners of the glass to fall off, burn edges and other grinding defects. Therefore, the grinding wheel grooves must be repaired with a grindstone at regular intervals.

[0003] The traditional repair method is to use a manual handheld grinding disc to grind and repair the grinding wheel groove, but it is difficult to align the handheld grinding disc with the grinding wheel groove, and it is easy to shake during grinding, which affects the repair effect and is also easy to cause injuries. The existing repair device has poor stability and poor control effect. Summary of the invention

[0004] A technical problem to be solved by the present disclosure is: in the post-processing process of the glass substrate, by providing a post-processing assembly of a grinding wheel with good controllability and compact structure, the grinding effect of the glass substrate is improved.

[0005] To solve the above technical problems, in a first aspect, an embodiment of the present disclosure provides a glass substrate post-processing device, comprising at least one group of post-processing components, the post-processing components comprising: a grindstone, used to grind a grinding wheel for grinding a glass substrate; a first driving mechanism, the output end of the first driving mechanism is fixed with the grindstone, used to drive the grindstone to approach or move away from the grinding wheel; a limiting mechanism, the limiting mechanism comprises a limiting hole through which the grindstone can pass, the first driving mechanism drives the grindstone 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 to clamp the grindstone when the grindstone grinds the grinding wheel.

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

[0008] In some embodiments, the post-processing assembly further includes: a spraying part, which is arranged at the limiting hole and aligned with the contact surface between the grinding stone and the grinding wheel for spraying a liquid with a certain width; and / or a fixing part, which includes a first fixing surface and a second fixing surface. The first fixing surface is used to fix the grinding wheel, and the second fixing surface is movably connected to the push rod through a slide rail.

[0009] In some embodiments, the glass substrate post-processing device further includes: at least one set of second driving mechanisms and connecting rods; the connecting rods are fixedly connected to a plurality of push rods at the same time. When the second driving mechanism drives the connecting rods to move, a plurality of post-processing assemblies are driven to move at the same time.

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

[0011] In a second aspect, an embodiment of the present disclosure provides a control method for controlling the above-mentioned glass substrate post-processing device, including 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 device; and in response to the loss prediction signal of the grinding wheel, controlling the first driving mechanism to drive the grinding stone to grind the grinding wheel according to the repair driving force and at the repair interval until the loss amount of the grinding stone reaches the repair amount.

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

[0013] In some embodiments, after the repair of the grinding wheel is completed, 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. If there are still defects in the glass substrate after repairing the grinding wheel n times, an alarm signal is sent, where n is a positive integer.

[0014] In a third aspect, an embodiment of the present disclosure provides a control system for a glass substrate post-processing device, including a memory, a processor, and a computer program stored on the memory. The processor executes the computer program to implement the control method of the above-mentioned glass substrate post-processing device.

[0015] Through the above technical solutions, the glass substrate post-processing device provided by the present disclosure improves the automated grinding process through the cooperation of the grinding stone, the first driving mechanism, the limiting mechanism, and the clamping device, improves the stability and controllability of the grinding stone for grinding the grinding wheel, and further improves the grinding effect on the glass substrate. Through the clamping of the clamping device, the vibration and heat generation of the grinding stone are reduced, the service life of each component is improved, and the loss of the glass substrate is reduced. For specific beneficial effects, please refer to the specific embodiments. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a post-processing component disclosed in an embodiment of the present disclosure;

[0018] Figure 2 It is a schematic structural diagram of a clamping device and a spraying part disclosed in an embodiment of the present disclosure;

[0019] Figure 3 It is a schematic structural diagram when the post-processing component disclosed in an embodiment of the present disclosure is arranged on one side of the glass substrate;

[0020] Figure 4 It is a schematic structural diagram when the post-processing component disclosed in an embodiment of the present disclosure is arranged on both sides of the glass substrate;

[0021] Figure 5 It is a schematic basic flowchart of a control method for a post-processing device disclosed in an embodiment of the present disclosure.

[0022] Explanation of reference numerals:

[0023] 1. Grinding wheel assembly; 11. Grinding motor; 12. Grinding wheel; 13. Fixing part; 14. Slide rail; 2. Post-processing component; 21. First driving mechanism; 211. First driving rod; 212. Clamping opening; 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 driving mechanism; 31. Second motor; 32. Second driving rod; 33. Connecting rod; 4. Glass substrate; 5. Control host; 51. Signal line and air pipe. Detailed implementation manners

[0024] The following will further describe the implementation manners of the present disclosure in detail in conjunction with the accompanying drawings and embodiments. The detailed description and the accompanying drawings of the following embodiments are used to exemplarily illustrate the principle of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed in the text, but including all technical solutions falling within the scope of the claims.

[0025] These embodiments are provided by the present disclosure to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary, rather than as limitations.

[0026] It should be noted that in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] In addition, the "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Terms such as "including" or "comprising" mean that the elements before this term cover the elements listed after this term, and do not exclude the possibility of also covering other elements.

[0028] It should also be noted that in the description of the present disclosure, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0029] All terms used in the present disclosure have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as, should be construed as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0030] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and devices should be regarded as part of the specification.

[0031] After the semi-finished glass substrate is fabricated, post-processing is required, such as grinding the edges, cutting into pieces, etc., to obtain a glass substrate that meets the requirements. Generally, a grinding wheel 12 is used to grind its edge or angular part. The grinding wheel assembly 1 includes a grinding wheel 12 and a grinding motor 11. The grinding wheel 12 is provided on the grinding motor 11. Driven by the grinding motor 11, the grinding wheel 12 rotates and grinds against the edge of the semi-finished glass substrate. However, since glass debris is likely to remain in the grooves of the grinding wheel 12, a grindstone 23 or a repair stone is needed to polish it. Manually holding the repair stone to repair the grinding wheel 12 is not only unsafe but also has weak controllability. For example, in order to achieve the effect of grinding the workpiece, the fitter will constantly adjust the holding force of the hand to observe the workpiece, prevent over-grinding or insufficient grinding of the workpiece, and at the same time hold the workpiece with both hands to firmly maintain the grinding angle of the workpiece and prevent deviation during grinding and unstable grinding. In view of the above situation, the present invention proposes a glass substrate post-processing device, a control method, and a control system, which improve the repair efficiency of the grinding wheel 12 through an automated and standardized control process, and thus improve the glass substrate post-processing procedure.

[0032] Please refer to Figure 1 , the glass substrate post-processing device of the present invention includes at least one set of post-processing assemblies 2, and the post-processing assembly 2 includes: a grindstone 23, a first driving mechanism 21, a limiting mechanism 24, and a clamping device 22. Among them, the grindstone 23, that is, the repair stone, is used to polish the grinding wheel 12 for grinding the glass substrate 4. When the grinding wheel 12 grinds the glass substrate 4 with the grooves of the grinding wheel 12, the grindstone 23 aligns with the grooves of the grinding wheel 12 for polishing. The output end of the first driving mechanism 21 is fixed with the grindstone 23 to drive the grindstone 23 to approach or move away from the grinding wheel 12.

[0033] Specifically, when the first driving mechanism 21 is controlled to start and the first driving rod 211 is pushed out, the grinding stone 23 approaches the grinding wheel 12; when the first driving rod 211 retracts, the grinding stone 23 moves away from the grinding wheel 12. When the first driving mechanism 21 provides driving force, it can adopt pneumatic means, or electric, hydraulic, mechanical and other means. The limiting mechanism 24 includes a limiting hole 241 through which the grinding stone 23 can pass. The limiting hole 241 serves as a passage for the grinding stone 23. The first driving 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 driving mechanism 21 controls the grinding stone 23 to contact the grinding wheel 12 with a single force and continuously grind, a large force is likely to cause excessive grinding, the grinding stone 23 is worn out quickly, there is a risk that the grinding wheel 12 will be damaged by the repair stone, and a large amount of heat is generated and a large amount of cooling is required. Therefore, the limiting mechanism 24 can also provide a control fulcrum, so that when the grinding stone 23 repairs the grinding wheel 12, other devices can be deployed on the limiting mechanism 24 to improve the repair effect. At least a clamping device 22 is provided on the limiting mechanism 24. The clamping device 22 is arranged 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. The clamping device 22 clamps and loosens the repair stone at regular intervals, avoiding overheating and wear of the grinding wheel 12 caused by long-term grinding, enabling the grinding stone 23 to slow down slowly, generating less heat and having a long service life. The first driving mechanism 21 plays a main thrust role, while the clamping device 22 plays a role in controlling the thrust, and the effect of pausing and advancing while grinding the workpiece can be achieved.

[0034] In some embodiments, the limiting mechanism 24 uses a hollow tube body as the limiting hole 241 for the grinding stone 23 to pass through. In order to enhance the stability and movement effect of the device, one end of the tube body away from the grinding wheel 12 is connected to the first driving mechanism 21. The tube body can be cylindrical or cubic. The clamping device 22 is arranged on the side wall of the tube body. By setting holes on the side wall of the tube body, the clamping part of the clamping device 22 can pass through the holes 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 for the clamping block 222.

[0035] Please refer to Figure 2 , in this embodiment, there are two clamping blocks 222 which are arranged oppositely. By starting the cylinder 221 of the pneumatic gripper, the two clamping blocks 222 approach each other to clamp or hold the grinding stone 23, and the two clamping blocks 222 move away from each other to loosen or release the grinding stone 23. Multiple models of pneumatic grippers can be selected on the market, such as models NMHL2, NMHZ2, etc.

[0036] In some embodiments, referring to Figure 1 , the push rod 25 can be arranged at the limiting mechanism 24. The limiting mechanism 24 is connected to the push rod 25 and is in a vertical relationship. Specifically, the push rod 25 is perpendicular to the length direction of the pipe body and is fixedly connected thereto, and a reinforcing block 26 is provided at the connection. When the limiting hole 241 is the pipe body, the length direction of the push rod 25 is perpendicular to the length direction of the pipe body. The push rod 25 can be restricted by the slide rail 14 and reciprocate along the length direction. The reinforcing block 26 is a reinforcing triangular block to prevent the reaction force during the operation of the grinding stone 23 from changing the vertical angle of the structure, thereby preventing the grinding stone 23 from deviating in angle during the repair operation.

[0037] How to fix the grinding stone 23 is crucial in the repair process. Manually holding it with both hands requires a great deal of force to keep the grinding stone 23 fixed, so as to make the repair angle accurate; when pushing the repair stone linearly, if it is not fixed properly, the repair stone may deviate due to excessive force during the grinding process. Therefore, in this application, the push rod 25 and the limiting mechanism 24 are used in cooperation to fix it.

[0038] Among them, in order to provide better control for the reciprocating movement of the push rod 25, the glass substrate post-processing device further includes: at least one set of second driving mechanisms 3 and connecting rods 33. The connecting rod 33 is fixedly connected to a plurality of push rods 25 at the same time and can drive the plurality of push rods 25 to move. When the second driving mechanism 3 drives the connecting rod 33 to move through the second driving rod 32, it simultaneously drives a plurality of post-processing components 2 to move, such as controlling the plurality of post-processing components 2 to move forward or backward at the same time. In this embodiment, the output shaft of the second motor 31, i.e., the second driving rod 32, is a lead screw, and the connecting rod 33 has corresponding threaded holes for the lead screw to pass through. When the grinding wheel 12 needs to be repaired, the second motor 31 drives the lead screw to rotate, and the connecting rod 33 pushes out a plurality of push rods 25, pushing the post-processing component 2 to the corresponding position of the grinding wheel 12. The second motor 31 can accurately control the advancing position to the millimeter level, which makes the contact point where the grinding stone 23 contacts the grinding wheel 12 controllable.

[0039] In some embodiments, the spraying part 27 can be arranged at the limiting mechanism 24. Referring to Figure 2 , the spraying part 27 is arranged at the limiting hole 241 and is aligned with the contact surface between the grinding stone 23 and the grinding wheel 12. The spraying part 27 is provided with a plurality of spray holes 271 for spraying a liquid with a certain width. Moreover, the water spraying cooling surface formed by the spray holes 271 can more efficiently reduce the usage amount of cooling water, reduce energy consumption, and will not cause large wastewater splashing, which has a good protective effect on the on-site equipment and environment, and the environmental protection effect is obvious. When there is a pipe body, the water spraying part is fixed on the side wall of the pipe body and sprays water continuously at a certain angle to the contact surface between the grinding stone 23 and the grinding wheel 12. The water curtain sprayed by the water spraying part has a certain width and can cover the contact surface to achieve the effects of cooling and dust removal.

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

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

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

[0043] In some embodiments, multiple grinding wheels 12 are provided on the grinding platform to polish the glass substrate 4 simultaneously. For example, there can be 4 to 6 grinding wheels 12. In the prior art, when different operators perform repairs, the advancing speeds of the repair stones are different, resulting in different repair effects and frequent repairs, increasing the labor intensity of the operators. The overall mechanism of the grinding platform including multiple grinding wheels 12 is compact. To repair all the grinding wheels 12 simultaneously, high requirements are imposed on the structural simplification and efficient control of the repair device. It should be convenient for repair and not occupy space to affect the post-processing process of the glass substrate 4. To achieve the overall transformation and synergistic effect of the grinding platform, please refer to Figure 3 and Figure 4, in the post-processing device for glass substrates proposed in this application, a corresponding post-processing component 2 is provided for each grinding wheel 12. The push rods 25 in the post-processing components 2 on the same side of the glass substrate 4 are fixed to the same connecting rod 33 and driven by the same second driving mechanism 3. Such a setting can improve the integration of the device, reduce the space occupation and energy consumption, and have a good control effect. Specifically, when the grinding wheel 12 needs to be repaired, the second driving mechanism 3 is started to drive 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 therein to move forward until they are aligned with the target grinding wheel 12. Then, the first driving mechanism 21 is started to drive the grinding stone 23 to approach the grinding wheel 12 until they are in contact. The grinding wheel 12 rotates driven by the grinding motor 11, and then the grinding stone 23 is used to polish it. During the above process, the clamping device 22 can clamp the grinding stone 23 at a preset clamping interval or clamping duration to reduce the vibration of the grinding stone 23 and enhance its stability, resulting in a better repair effect. After the repair is completed, the first driving mechanism 21 drives the grinding stone 23 to retract, and then the second driving mechanism 3 drives the push rod 25 to move backward to return to the original position.

[0044] In order to make the repair operation of the grinding wheel 12 systematic and rule-based. The present invention also provides a method, based on the post-processing device, to control the repair stone to repair the grinding wheel 12 regularly. Compared with manually using the grinding stone 23 to repair by experience, the present invention is more stable, safe, and has strong controllability. Please refer to Figure 5 , the control method of the post-processing device for glass substrates proposed by the present 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 device; and in response to the loss prediction signal of the grinding wheel 12, controlling the first driving mechanism 21 to drive the grinding stone 23 to polish the grinding wheel 12 at the repair driving force and at the repair interval until the loss amount of the grinding stone 23 reaches the repair amount. Specifically, it includes the following steps S0 to S3.

[0045] S0. Set up a 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 duration of the first driving mechanism 21, the pneumatic gripper, and the second driving mechanism 3, and the start and stop of the injection part 27 of the signal line and the air pipe 51 and the water pressure.

[0046] S1. Collect signals, and determine the repair interval, repair amount, and repair driving force of the post-processing device according to the signals. Collect the thickness information of the glass substrate 4 to be processed by the grinding wheel 12 to obtain a thickness signal. A laser thickness gauge can be used to measure the thickness of the input glass substrate 4. Collect 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 the parameter comparison tables of the repair interval, repair amount, pressure, etc. corresponding to different plate thicknesses and materials.

[0047] Among them, to reduce the friction temperature between the grindstone 23 and the grinding wheel 12 and extend the service life of the device, the grindstone 23 will be controlled to be polished multiple times during each repair process, and the interval time between each polishing is the repair interval. The repair amount is the length that the grindstone 23 needs to consume during this repair process. The pressure is the repair driving force, which is the power 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. For different thicknesses of the glass substrate 4, the specific values are different. For example, when the glass substrate is 0.5 mm thick → the repair interval is 30 s, the air pressure of the propulsion cylinder is 1.0 MPa, and the repair amount is 2 mm; when the plate thickness is 0.4 mm → the repair interval is 20 s, the air pressure of the propulsion cylinder is 0.8 Mpa, and the repair amount is 1.5 mm. In addition, glass substrates of different materials also have different losses to the grinding wheel 12. The repair force and repair amount required for the OLED carrier glass are greater than those of the TFT liquid crystal glass substrate because the OLED carrier glass has higher hardness and strength, and its edge grinding operation consumes the grinding wheel 12 more. For the TFT liquid crystal glass substrate with a plate thickness of 0.5 mm → the repair interval is 30 s, the air pressure of the propulsion cylinder is 1.0 MPa, and the repair amount is 2 mm. For the OLED carrier glass with a plate thickness of 0.5 mm → the repair interval is 30 s, the air pressure of the propulsion cylinder is 1.2 Mpa, and the repair amount is 2.5 mm. Determine the pressure adjustment range of the first driving mechanism 21 according to the glass substrate, for example, 0.5 - 1.5 MPa. The determination of the above parameters greatly improves the repair efficiency and stability of the grinding wheel 12 compared with manual experience. When a new material or thickness of the glass substrate 4 needs to be processed subsequently, it can be manually repaired, and the repair parameter data can be recorded. Using this data to train the data model and update the above parameter comparison tables of the repair interval, repair amount, and pressure can accurately match the repair force and repair amount of the grinding wheel 12.

[0048] S2. Obtain a loss prediction signal, and control the first driving mechanism 21 to drive the grindstone 23 to polish the grinding wheel 12 at the repair driving force and at the repair interval until the loss amount of the grindstone 23 reaches the repair amount.

[0049] Among them, the loss prediction signal can be obtained by analyzing the time points of loss during the past usage cycles of the grinding wheel 12. Specifically, by recording the time points of loss during the usage cycle of the grinding wheel 12 and the usage cycles of the grinding wheel 12 for grinding glass substrates 4 with different thickness components (for example, the grinding wheel 12 shows loss in the first week of grinding the OLED carrier glass or the grinding wheel 12 shows loss in the second week of grinding the TFT liquid crystal glass substrate), a data model is generated, and the loss prediction signal is obtained from this data model to predict the time point of the next loss of the grinding wheel 12. When this time point is reached, a prompt is given, and the grinding wheel 12 is controlled to be polished by the grindstone 23. In this way, the usage of the grinding wheel 12 has a strict cycle prediction and control, and this step is predictive. In the prior art, when an operator discovers phenomena such as edge burning and edge chipping during the grinding of the glass substrate, the grinding wheel 12 is checked to see if it needs to be repaired, which is highly subjective. In addition, it is easy to make mistakes when personnel manually record the usage time of the grinding wheel 12.

[0050] When it is determined according to the loss prediction signal that the grinding wheel 12 needs to be polished, the control host 5 controls the second driving mechanism 3 to move forward, driving the grindstone 23 close to the grinding wheel 12, and then controls the first driving mechanism 21 to push or retract the grindstone 23 at the repair interval and repair driving force determined by S1. During this process, the length of the consumed grindstone 23 is detected and compared with the repair amount until the repair amount is reached, and the repair is stopped. When the first driving mechanism 21 is a propulsion cylinder, when the post-processing device starts to work, the control host 5 controls the propulsion cylinder with a smaller air pressure to make the grindstone 23 contact the grinding wheel 12, and then immediately increases the air pressure to the required pressure (repair driving force). Among them, a sensor can be added to the side of the limit mechanism 24 facing the grindstone 23 to detect the usage length of the grindstone 23, and the operation is stopped when the grindstone 23 is too short.

[0051] In addition, during the above S2 process, to prevent the grindstone 23 from shaking and affecting the repair of the grinding wheel 12, the pneumatic gripper needs to grip the grindstone 23 according to a certain clamping time and clamping interval. Among them, the clamping time is the continuous time when the clamping blocks 222 are attracted to each other and grip the grindstone 23; and the clamping interval is the time interval between the attraction and release of the clamping blocks 222. For example, when the clamping interval is 1 second and the clamping time is 5 - 10 seconds, the pneumatic gripper releases for 1 second every 5 - 10 seconds and then closes again. In this way, after the grindstone 23 is consumed, it can be pushed by the first driving mechanism 21 to further maintain the grinding effect. With the cooperation of the first driving mechanism 21 and the pneumatic gripper precisely controlled by the repair system, the effect of the grindstone 23 in repairing the grinding wheel 12 reaches the best, which can replace manual repair and greatly improve the repair effect.

[0052] S3. After the repair of the grinding wheel 12 is completed, the following steps are further included:

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

[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, and repair the grinding wheel 12 again. When defects still exist, it indicates that the grinding wheel 12 has not been repaired well. At this time, parameters still need to be changed to repair it again. The display interface of the control host 5 can display the real-time status of the grinding wheel 12, repair records, and the trend chart of the grinding defect rate of the glass substrate, which is convenient for adjusting the parameters of the repair system.

[0055] In S32, if the glass substrate 4 still has defects after the grinding wheel 12 is repaired n times (n is a positive integer), an alarm signal is issued. For example, when defects such as glass edge burning are still detected after the grinding wheel 12 is repaired continuously twice (n = 2), a red alarm is triggered, and personnel can adjust the parameters in S1 or scrap the grinding wheel 12. Due to the stability of the repair effect of this repair system and device, when the glass still has grinding defects after the grinding wheel 12 is repaired, it is easier to judge that the grinding wheel 12 has reached the scrap standard. When manually repairing, it is necessary to repeatedly repair the grinding wheel 12 to test whether it is scrapped. This application can determine whether it is damaged or the parameters need to be adjusted after 2 repairs, greatly improving the use efficiency of the grinding wheel 12.

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

[0057] The glass substrate post-processing device, control method, and control system proposed by the present invention can realize automatic repair of the grinding wheel without manual repair, quickly, safely, and accurately. And based on the grinding data of glass substrates with different materials and thicknesses, a corresponding data model is trained, and control parameters are determined based on this constraint to achieve refined control. At the same time, for a grinding platform with multiple grinding wheels, a suitable second driving component and a push rod are provided to facilitate the adjustment of the positional relationship between the grinding stone and the grinding wheel, reducing space occupation and realizing centralized control, and realizing rapid and regular reasonable repair of multiple grinding wheels, greatly saving the downtime of the repair operation. Through a good automatic control process, parameters or the states of various components are adjusted in real time, making the repair of the grinding wheel precise and efficient, greatly shortening the cycle of manual frequent repair of the grinding wheel, improving the processing efficiency of the glass substrate, reducing the defect rate of the glass substrate, and enabling the glass substrate edge burning / chipping rate to be reduced by 30 - 40%. And the cost is reduced. For example, the consumption of the repair stone is reduced by 20 - 30%, and at the same time, the service life of the grinding wheel is extended by 30 - 40%.

[0058] So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details well 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] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or equivalent replacements can be made to some technical features without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way.

Claims

1. A glass substrate post-processing device, characterized in that: The invention comprises at least one post-processing component (2), wherein the post-processing component (2) comprises: A grindstone (23) for grinding a grinding wheel (12) for grinding the glass substrate (4); a first driving mechanism (21), wherein the grinding stone (23) is fixed at an output end of the first driving mechanism (21) so as to drive the grinding stone (23) to move closer to or farther from the grinding wheel (12); a limiting mechanism (24), the limiting mechanism (24) comprising a limiting hole (241) through which the grinding stone (23) can pass, the first driving mechanism (21) driving the grinding stone (23) to move through the limiting hole (241) to approach or move away from the grinding wheel (12); and A clamping device (22) is arranged at the limiting hole (241) of the limiting mechanism (24) and is used to clamp the grinding stone (23) when the grinding stone (23) is grinding the grinding wheel (12).

2. The glass substrate post-processing device according to claim 1, characterized in that: The output end of the first driving mechanism (21) is provided with a clamping opening (212), and the shape of one end of the grinding stone (23) away from the grinding wheel (12) is adapted to the clamping opening (212), and / or One 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 device according to claim 1, characterized in that: The limiting mechanism (24) further comprises a push rod (25), the push rod (25) being perpendicular to the length direction of the limiting mechanism (24) and fixedly connected thereto, and a reinforcing block (26) being provided at the connection point.

4. The glass substrate post-processing device according to claim 3, characterized in that: The post-processing component (2) further comprises: a spraying portion (27), the spraying portion (27) being arranged at the limiting hole (241) and being aligned with the contact surface between the grinding stone (23) and the grinding wheel (12) to spray liquid with a certain width; and / or A fixing portion (13), the fixing portion (13) comprising a first fixing surface and a second fixing surface, the first fixing surface being used to fix the grinding wheel (12), and the second fixing surface being movably connected to the push rod (25) via a slide rail (14).

5. The glass substrate post-processing device according to claim 4, characterized in that: The glass substrate post-processing device also includes: At least one set of a second driving mechanism (3) and a connecting rod (33); The connecting rod is fixed to the plurality of push rods (25) at the same time, and when the second driving mechanism (3) drives the connecting rod (33) to move, it also drives the plurality of post-processing components (2) to move at the same time.

6. The glass substrate post-processing device according to claim 1, characterized in that: The clamping device (22) is a pneumatic clamping jaw.

7. A method for controlling a glass substrate post-processing device according to any one of claims 1 to 6, characterized in that: The steps include: In response to a thickness signal and a material signal of the glass substrate (4) processed by the grinding wheel (12), determining a repair interval, a repair amount, and a repair driving force of a post-processing device; as well as In response to the loss prediction signal of the grinding wheel (12), the first driving mechanism (21) is controlled to drive the grindstone (23) to grind the grinding wheel (12) according to the repair driving force and at the repair interval until the loss amount of the grindstone (23) reaches the repair amount.

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

9. The control method of the glass substrate post-processing device according to claim 7, characterized in that: After the grinding wheel (12) is repaired, the following steps are also included: Controlling the repaired grinding wheel (12) 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, the repair interval and the repair amount are adjusted to repair the grinding wheel (12) again. Wherein, after the grinding wheel (12) has been repaired n times, if the glass substrate (4) still has defects, an alarm signal is issued, and n is a positive integer.

10. A control system for a glass substrate post-processing device, characterized in that: The device comprises 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 device according to any one of claims 7 to 9.

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