BOW shape control method of ribbon glass based on online temperature detection

Abstract

The present invention provides a BOW-shaped control method for ribbon glass based on online temperature detection, including S1, overflow forming: S2, annealing detection: S2.1, the glass ribbon is conveyed downward to the annealing furnace directly below the muffle furnace through the first vertical traction roller, and the plurality of second vertical traction rollers in the annealing furnace pull the glass ribbon downward; S2.2, the thermocouples between the second vertical traction rollers detect the temperature of the glass ribbon online, and transmit the temperature data to the background analysis platform; S2.3, the background analysis platform processes the temperature data and determines whether the temperature exceeds the threshold: S3, abnormal processing: S4, qualified material output. When there is a fault, the present invention can timely alarm to improve the staff to adjust the parameters of the muffle furnace and the annealing furnace, and at the same time, under the condition of ensuring that the equipment does not stop, the abnormal glass ribbon of a specified length can be transferred and output through the waste processing system to avoid the abnormal glass ribbon flowing to the subsequent process.

Description

Technical Field

[0001] The invention relates to the technical field of glass processing, and in particular to a BOW-shaped control method of ribbon-shaped glass based on online temperature detection. Background Art

[0002] The overflow down-draw method is one of the main methods for producing liquid crystal glass substrates. This method is to mix the raw materials in a specific proportion and then put them into a pool furnace to heat them to a molten state, and then transport them to the overflow bricks in the muffle furnace through a platinum pipe. When the overflow bricks are full, the molten glass will overflow along the two sides of the overflow bricks to the inclined wall surface. At the bottom of the overflow bricks, the two strands of glass materials merge to form a glass plate root, which is pulled downward by a traction device to form a single piece of glass ribbon;

[0003] In production, the glass sheets flow down the annealing furnace at a uniform speed. In normal production, the glass sheets have a certain BOW shape, which is used to enhance the stability and certain stress strength of the glass sheets. In daily production, the glass sheets are clamped by short rollers in each area and flow downward at a uniform speed. If the initial glass ribbon process temperature cannot meet the requirements, the glass ribbon cannot form a qualified BOW shape in the subsequent shaping process. If the on-site personnel do not find it in time or find it too late, the abnormal glass sheets will flow to the subsequent process, resulting in defective products being processed in the subsequent process. Even worse, the abnormal glass sheets are processed into finished products and flow to the client, causing damage to the customer's equipment, which has an extremely bad impact.

[0004] The patent with publication number CN109375565A discloses: by installing an online detection and automatic adjustment system for measuring the BOW type of TFT glass substrate at the exit of the annealing furnace, the system includes a sensor device, an online analysis device, and an adjustment device; the sensor device includes a cylinder with a grating and a roller, and a distance sensor, and the online analysis device includes an information transmission system and an MES system; the adjustment device includes a PLC system and a solenoid valve. According to the characteristics of the system, the present invention also includes a control method with simple process and strong operability. By accurately controlling the position of the cylinder and then using the roller of the cylinder to change the BOW type of the glass, the function of real-time online monitoring, comparison and adjustment of the BOW shape is realized. The obtained glass product has strong consistency, stable production line and high yield rate.

[0005] The prevention method of the above-mentioned existing patent is that when it is found that the BOW shape is unqualified, it is promptly transferred to the trimming process for shape trimming to ensure that the output product BOW shape is qualified. However, this method is only a remedial measure and cannot solve the problem of unqualified BOW shape from the source.

[0006] In summary, there is a need for a method for controlling the BOW shape of ribbon glass that can control the temperature of the glass sheet to eliminate unqualified BOW shape. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a BOW-shaped control method for band-shaped glass based on online temperature detection, which solves the problems mentioned in the background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A BOW-shaped control method for ribbon glass based on online temperature detection, the control method comprising the following steps;

[0010] S1. Overflow molding:

[0011] The molten glass is transported through platinum pipes to the overflow bricks in the muffle furnace;

[0012] When the overflow brick is full, the molten glass will overflow along the two sides of the overflow brick to the inclined wall surface, and the two streams of glass will merge at the bottom of the overflow brick to form a glass plate root;

[0013] The glass sheet is pulled downward by a plurality of first vertical pulling rollers to obtain a flexible glass ribbon;

[0014] S2. Annealing test:

[0015] S2.1, the glass ribbon is transported downward to the annealing furnace directly below the muffle furnace by a first vertical pulling roller, and a plurality of second vertical pulling rollers in the annealing furnace pull the glass ribbon downward;

[0016] S2.2, the thermocouple between the second vertical traction rollers detects the temperature of the glass ribbon online, and transmits the temperature data to the background analysis platform;

[0017] S2.3. The background analysis platform processes the temperature data and determines whether the temperature exceeds the threshold:

[0018] If yes, the temperature of the glass ribbon is abnormal, and the glass ribbon cannot be made into a BOW shape.

[0019] The analysis platform determines the length of the abnormal glass ribbon and enters S3;

[0020] If not, the temperature of the glass ribbon is normal, and the process goes to S4;

[0021] S3. Exception handling:

[0022] The abnormal glass ribbon is transported to the bottom of the annealing furnace through the second vertical traction roller.

[0023] In a square vertical converter;

[0024] The backend analysis platform links with the on-site alarm system to warn workers to adjust the muffle

[0025] Furnace and annealing furnace working parameters;

[0026] The backend analysis platform links the waste treatment system in the transfer furnace to switch to working state, cuts off the abnormal glass ribbon of specified length and transfers it to the waste recovery furnace;

[0027] Determine whether the length transferred to the waste recovery furnace reaches the abnormal length determined by the background analysis platform:

[0028] If yes, the abnormal glass ribbon is processed, the waste treatment system is reset to the non-operating state, and the process returns to S2.3;

[0029] If not, the abnormal part has not been processed and the waste treatment system remains in working condition;

[0030] S4. Qualified material output:

[0031] The qualified glass ribbon is further transported to the vertical transfer furnace through the second vertical traction roller;

[0032] The waste handling system in the non-working state continues to pull and transport the qualified glass ribbon downward;

[0033] The qualified glass ribbon is finally turned and transported to the horizontal converter connected to the bottom end of the vertical converter by the third vertical traction roller.

[0034] Furthermore, a plurality of thermocouples are vertically spaced apart and are fixed to the outer wall of the annealing furnace by screws.

[0035] Furthermore, in S2.3, the background analysis platform processes the temperature data and determines whether the temperature exceeds the threshold. The specific process is:

[0036] The temperature data collected by each thermocouple is transmitted to the monitoring platform;

[0037] The monitoring platform plots the temperature data into a real-time curve trend chart;

[0038] Compare the real-time curve trend chart with the standard curve trend chart built into the monitoring platform;

[0039] Determine whether the real-time curve trend graph exceeds the upper and lower thresholds of the standard curve trend graph.

[0040] Furthermore, the overflow brick, the first vertical traction roller, the second vertical traction roller, and the third vertical traction roller are all located on the same vertical center line.

[0041] Further, the waste material processing system includes a deflection conveying assembly, a cutting assembly, a glass sheet displacement assembly, and a discharging assembly;

[0042] The deflection conveying assembly is symmetrically installed on the inner top of the vertical transfer furnace, and the glass sheet displacement assembly is installed below the deflection conveying assembly; the cutting assembly is symmetrically installed in the middle of the vertical transfer furnace, the cutting assembly is located below the glass sheet displacement assembly, and the third vertical traction roller is arranged below the cutting assembly;

[0043] The waste recovery furnace is arranged outside the vertical transfer furnace, and a discharge trough connected to the waste recovery furnace is opened on the side of the vertical transfer furnace, and a discharge assembly is installed inside the discharge trough;

[0044] The glass sheet passes through the deflection conveying assembly, the glass sheet displacement assembly, the cutting assembly, and the third vertical pulling roller in sequence from top to bottom.

[0045] Furthermore, the deflection conveying assembly includes a flipping motor, a base, a swing arm and an auxiliary traction roller. The base is arranged at the inner top of the vertical converter. The top end of the swing arm is rotatably connected to the base and a flipping motor is installed at the rotating connection. The bottom end of the swing arm is rotatably connected to the auxiliary traction roller.

[0046] Furthermore, the glass sheet displacement assembly includes a second hydraulic rod, which is installed on the outer wall of the vertical transfer furnace. The inner wall of the vertical transfer furnace is provided with a guide tube. The movable rod at the end of the second hydraulic rod slides through the vertical transfer furnace and the guide tube. The end of the movable rod is connected to the guide rod, which slides through the guide tube. The outer end of the guide rod is connected to a center column. The outer wall of the center column is slidably covered with a glass sheet guide assembly, and the outer end of the center column is connected to a glass sheet clamping assembly; the glass sheet penetrates the glass sheet clamping assembly.

[0047] Furthermore, the discharging assembly includes a discharging inclined plate, a first waste traction roller, and a second waste traction roller. The discharging inclined plate is tilted in the discharging trough. The first waste traction roller is provided on the upper top part of the discharging inclined plate, and the second waste traction roller is provided on the upper bottom part. The second waste traction roller is arranged in the waste recovery furnace, and the first waste traction roller is arranged in the vertical transfer furnace.

[0048] Furthermore, when the waste processing system is not in operation: the second vertical traction roller, the auxiliary traction roller, the glass sheet clamping assembly, and the third vertical traction roller are located at the same vertical center line; the glass sheet guide assembly is affixed to the stopper at the end of the guide tube, and the glass sheet guide group is spaced apart on one side of the glass sheet.

[0049] Furthermore, the working method of the waste treatment system is as follows:

[0050] The left and right cutting components act synchronously to cut off the initial end of the abnormal glass slices and then separate them; the qualified glass slices continue to be transported downward through the third vertical traction roller;

[0051] The tilting motor drives the swing arm to rotate, so that the auxiliary traction roller deviates from the vertical converter centerline by 15-30°;

[0052] The second hydraulic rod drives the movable rod to move along the guide tube, so that the guide rod and the middle connecting column extend synchronously, and the middle connecting column drives the glass sheet clamping assembly and the glass sheet guide assembly to move synchronously when moving;

[0053] When the glass sheet clamping assembly drives the initial end of the abnormal glass sheet to move above the top end of the discharge inclined plate, the second hydraulic rod stops moving;

[0054] The glass sheet guide assembly moves toward one end of the glass sheet clamping assembly to approach the abnormal glass sheet so that the bottom end of the glass sheet guide assembly is connected with the top end of the discharge inclined plate as a whole. At this time, the bottom of the glass sheet guide assembly is placed below the abnormal glass sheet.

[0055] The abnormal glass flakes are driven by the second vertical traction roller and the auxiliary traction roller to enter the discharge inclined plate along the glass flake guide assembly, and then the abnormal glass flakes are driven by the first waste traction roller and the second waste traction roller to enter the waste recovery furnace along the discharge inclined plate;

[0056] After the abnormal glass sheet is conveyed, the left and right cutting components will act synchronously to cut off the end of the abnormal glass sheet and then separate;

[0057] The deflection conveying assembly and the glass sheet displacement assembly are reset to the non-operating state.

[0058] The present invention provides a band glass BOW shape control method based on online temperature detection. Compared with the prior art, it has the following beneficial effects:

[0059] Thermocouple + background analysis platform can realize online monitoring of the temperature of the glass ribbon prepared by overflow down-drawing. When there is a fault, it can alarm in time to prompt the staff to adjust the parameters of the muffle furnace and annealing furnace. At the same time, while ensuring that the equipment does not stop, the waste treatment system can transfer and output the abnormal glass ribbon of specified length to avoid the abnormal glass ribbon flowing to the subsequent process, effectively ensuring the qualification of the glass ribbon temperature and avoiding the failure to form a BOW shape in the subsequent molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 A schematic diagram of a band-shaped glass BOW-shaped control method based on online temperature detection of the present invention is shown;

[0062] Figure 2 The schematic diagram of the structure of the glass ribbon processing equipment of the present invention is shown;

[0063] Figure 3 A schematic diagram of the structure of the deflection conveying assembly of the present invention is shown;

[0064] Figure 4 A schematic diagram of the structure of the glass sheet displacement assembly of the present invention is shown;

[0065] Figure 5 A schematic diagram of the structure of the glass sheet guide assembly of the present invention is shown;

[0066] Figure 6 The schematic diagram of the structure of the discharging assembly of the present invention is shown;

[0067] Figure 7 A schematic diagram of the structure of the cutting assembly of the present invention in working state is shown;

[0068] Figure 8 The schematic diagram of the abnormal glass sheet transfer state of the present invention is shown;

[0069] Fig. 9 The schematic diagram of the structure of the abnormal glass sheet output state of the present invention is shown;

[0070] As shown in the figure: 1. furnace body; 11. muffle furnace; 111. first vertical traction roller; 12. annealing furnace; 121. second vertical traction roller; 13. vertical transfer furnace; 131. third vertical traction roller; 14. discharge chute; 2. overflow brick; 3. thermocouple; 4. cutting assembly; 5. deflection conveying assembly; 51. turning motor; 52. base; 53. swing arm; 54. auxiliary traction roller; 6. waste recycling furnace; 7. glass sheet displacement assembly; 71. hydraulic rod; 711. movable rod; 72. guide tube; 73. guide rod ; 74. Glass sheet guide assembly; 741. Slider; 742. Vertical plate; 7421. Through hole; 743. Support inclined plate; 744. Displacement motor; 745. Traction wheel; 746. Traction rope; 75. Center column; 751. Slide groove; 752. Spring; 76. Glass sheet clamping assembly; 761. Side plate; 762. Cross frame; 763. First roller; 764. Second roller; 8. Horizontal transfer furnace; 9. Discharging assembly; 91. Discharging inclined plate; 92. First waste traction roller; 93. Second waste traction roller. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] Embodiment 1

[0073] In order to solve the technical problems in the background technology, the following BOW-shaped control method of ribbon glass based on online temperature detection is provided:

[0074] Combination Figure 1-Figure 2 As shown, the present invention provides a BOW-shaped control method for band-shaped glass based on online temperature detection, and the control method comprises the following steps:

[0075] S1. Overflow molding:

[0076] The molten glass is transported to the overflow brick 2 in the muffle furnace 11 through a platinum pipe;

[0077] When the overflow brick 2 is full, the molten glass will overflow along the two sides of the overflow brick 2 to the inclined wall surface, and the two streams of glass materials will merge at the bottom of the overflow brick 2 to form a glass plate root;

[0078] The glass sheet is pulled downward by a plurality of first vertical pulling rollers 111 to obtain a flexible glass ribbon;

[0079] S2. Annealing test:

[0080] S2.1, the glass ribbon is transported downward to the annealing furnace 12 directly below the muffle furnace 11 by the first vertical traction roller 111, and a plurality of second vertical traction rollers 121 in the annealing furnace 12 pull the glass ribbon downward;

[0081] S2.2, the thermocouple 3 between the second vertical traction rollers 121 detects the temperature of the glass ribbon online, and transmits the temperature data to the background analysis platform;

[0082] S2.3. The background analysis platform processes the temperature data and determines whether the temperature exceeds the threshold:

[0083] If yes, the temperature of the glass ribbon is abnormal and the glass ribbon cannot be made into a BOW shape. The background analysis platform determines the length of the abnormal glass ribbon and enters S3;

[0084] If not, the temperature of the glass ribbon is normal, and the process goes to S4;

[0085] S3. Exception handling:

[0086] The abnormal glass ribbon is further transported to the vertical transfer furnace 13 directly below the annealing furnace 12 through the second vertical traction roller 121;

[0087] The background analysis platform links the on-site alarm system to alarm, reminding the workers to adjust the working parameters of the muffle furnace 11 and the annealing furnace 12;

[0088] The background analysis platform links the waste treatment system in the transfer furnace to switch to working state, cuts off the abnormal glass ribbon of specified length and transfers it to the waste recovery furnace 6;

[0089] Determine whether the length transferred to the waste recovery furnace 6 reaches the abnormal length determined by the background analysis platform:

[0090] If yes, the abnormal glass ribbon is processed, the waste treatment system is reset to the non-operating state, and the process returns to S2.3;

[0091] If not, the abnormal part has not been processed and the waste treatment system remains in working condition;

[0092] S4. Qualified material output:

[0093] The qualified glass ribbon is further transported to the vertical transfer furnace 13 through the second vertical traction roller 121;

[0094] The waste handling system in the non-working state continues to pull and transport the qualified glass ribbon downward;

[0095] The qualified glass ribbon is finally turned and transported to the horizontal transfer furnace 8 connected to the bottom end of the vertical transfer furnace 13 by the third vertical traction roller 131 .

[0096] Through the above-mentioned thermocouple 3+backstage analysis platform, the temperature of the glass ribbon prepared by overflow down-drawing can be monitored online. When there is a fault, an alarm can be issued in time to prompt the staff to adjust the parameters of the muffle furnace 11 and the annealing furnace 12. At the same time, while ensuring that the equipment does not stop, the waste treatment system can transfer and output the abnormal glass ribbon of a specified length to avoid the abnormal glass ribbon flowing to the subsequent process, effectively ensuring the qualification of the glass ribbon temperature and avoiding the failure to form a BOW shape in the subsequent molding process.

[0097] The muffle furnace 11, the annealing furnace 12, and the vertical transfer furnace 13 are all arranged in the same vertical furnace body 1;

[0098] In this embodiment, a plurality of thermocouples 3 are arranged vertically at intervals, and the thermocouples 3 are fixed to the outer wall of the annealing furnace 12 by screws; a plurality of thermocouples 3 are arranged to comprehensively collect the temperature of the glass ribbon and improve the collection accuracy; and the fixing by screws can facilitate disassembly and replacement when damaged.

[0099] In this embodiment, in S2.3, the background analysis platform processes the temperature data and determines whether the temperature exceeds the threshold. The specific process is:

[0100] The temperature data collected by each thermocouple 3 is transmitted to the monitoring platform;

[0101] The monitoring platform plots the temperature data into a real-time curve trend chart;

[0102] Compare the real-time curve trend chart with the standard curve trend chart built into the monitoring platform;

[0103] Determine whether the real-time curve trend graph exceeds the upper and lower thresholds of the standard curve trend graph.

[0104] Through the above-mentioned real-time comparison method, it is possible to timely understand whether the real-time temperature exceeds the threshold and realize online monitoring.

[0105] In this embodiment, the overflow brick 2, the first vertical traction roller 111, the second vertical traction roller 121, and the third vertical traction roller 131 are all located on the same vertical center line. The design of the same vertical center line can ensure the stability of traction.

[0106] Embodiment 2

[0107] like Figure 3-Figure 9 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0108] In order to enable the waste treatment system to achieve the above-mentioned purpose of transferring waste of specified length without stopping the machine, the present application provides the following solutions:

[0109] In this embodiment, the waste treatment system includes a deflection conveying assembly 5, a cutting assembly 4, a glass sheet displacement assembly 7, and a discharging assembly 9;

[0110] The deflection conveying assembly 5 is symmetrically installed on the inner top of the vertical transfer furnace 13, and the glass sheet displacement assembly 7 is installed below the deflection conveying assembly 5; the cutting assembly 4 is symmetrically installed in the middle of the vertical transfer furnace 13, the cutting assembly 4 is located below the glass sheet displacement assembly 7, and the third vertical traction roller 131 is arranged below the cutting assembly 4;

[0111] The waste recovery furnace 6 is arranged outside the vertical transfer furnace 13. A discharge chute 14 communicating with the waste recovery furnace 6 is provided on the side of the vertical transfer furnace 13. A discharge assembly 9 is installed inside the discharge chute 14.

[0112] The glass sheet passes through the deflection conveying assembly 5, the glass sheet displacement assembly 7, the cutting assembly 4, and the third vertical pulling roller 131 in sequence from top to bottom.

[0113] In the above scheme, when it is necessary to process the abnormal glass ribbon, the connection between the normal and abnormal initial ends is cut off by the cutting component 4, so that the normal part can flow out normally, and the abnormal part will be transferred to the top of the discharging component 9 under the action of the deflection conveying component 5 and the glass sheet displacement component 7, thereby realizing the switching from the unloading position to the recycling position; the waste recovery furnace 6 is arranged on the side of the vertical transfer furnace 13, which is easy to transfer and the temperature will not be too low.

[0114] In this embodiment, the deflection conveying assembly 5 includes a flipping motor 51, a base 52, a swing arm 53 and an auxiliary traction roller 54. The base 52 is arranged at the inner top of the vertical converter 13. The top end of the swing arm 53 is rotatably connected to the base 52 and the flipping motor 51 is installed at the rotating connection. The bottom end of the swing arm 53 is rotatably connected to the auxiliary traction roller 54.

[0115] By driving the swing arm 53 and the auxiliary traction roller 54 to deflect through the flip motor 51, the offset slope of the glass sheet can be reduced, the stability of the transportation of the glass strip can be ensured, and breakage can be avoided; the auxiliary traction roller 54 can solve the problem of the loss of traction force of the third vertical traction roller 131, and the traction effect can be ensured. When conveying qualified glass sheets, the auxiliary traction roller 54 may not work, and the third vertical traction roller 131 only needs to work, so as to reduce energy consumption.

[0116] In this embodiment, the glass sheet displacement assembly 7 includes a second hydraulic rod 71, which is installed on the outer wall of the vertical transfer furnace 13. The inner wall of the vertical transfer furnace 13 is provided with a guide tube 72. The movable rod 711 at the end of the second hydraulic rod 71 slides through the vertical transfer furnace 13 and the guide tube 72. The end of the movable rod 711 is connected to a guide rod 73, which slides through the guide tube 72. The outer end of the guide rod 73 is connected to a center column 75. The outer wall of the center column 75 is slidably covered with a glass sheet guide assembly 74, and the outer end of the center column 75 is connected to a glass sheet clamping assembly 76; the glass sheet penetrates the glass sheet clamping assembly 76.

[0117] The purpose of the glass sheet displacement assembly 7 is to drive the initial end of the abnormal glass sheet to move to the top of the discharging assembly 9 to achieve the change of the discharging position and ensure that subsequent abnormal glass sheets can continue to be transported to the discharging assembly 9.

[0118] The glass sheet clamping assembly 76 is a portion for clamping and guiding the glass sheet, and the glass sheet vertically passes through it;

[0119] The specific structure of the glass sheet clamping assembly 76 is as follows: the glass sheet clamping assembly 76 includes a side panel 761, a cross frame body 762, a first roller 763, and a second roller 764; the side panel 761 is arranged at the end of the middle connecting column 75, and the outer side surface of the side panel 761 is vertically condensed with the cross frame body 762, and the first roller 763 and the second roller 764 are symmetrically rotatably installed inside the cross frame body 762, and the glass sheet vertically passes through the first roller 763 and the second roller 764.

[0120] The glass sheet guide assembly 74 is used to be connected with the discharging assembly 9 as a whole when transferring abnormal glass sheets to ensure the smoothness of the transfer of abnormal glass sheets. However, in order to guide the abnormal glass sheets to turn, the glass sheet guide assembly 74 must be placed under the glass sheets when transferring abnormal materials, but when conveying qualified glass sheets, it needs to be staggered and placed aside so as not to block the qualified glass sheets. On the other hand, a group of cutting assemblies 4 are located on the side of the glass sheet guide assembly 74, which cannot affect the action of the cutting assembly 4. In order to solve the above problems, the design of the glass sheet guide assembly 74 is given as follows:

[0121] The glass sheet guide assembly 74 includes a slider 741, a vertical plate 742, a support inclined plate 743, and a displacement motor 744. A slide groove 751 is provided on the bottom surface of the middle column 75. The top of the slider 741 is slidably embedded in the slide groove 751. A spring 752 is installed inside the slide groove 751. The spring 752 is placed on the outside of the slider 741. The displacement motor 744 is arranged at the outer end of the upper surface of the middle column 75. The output end of the displacement motor 744 is connected to the traction wheel 745. The outer wall of the traction wheel 745 is wrapped with a traction rope 746. The end of the traction rope 746 is connected to the slider 741; a vertical plate 742 is provided on the bottom surface of the slider 741. A through hole 7421 is provided inside the vertical plate 742 for the cutter of the cutting assembly 4 to pass through. The bottom end of the vertical plate 742 is connected to the support inclined plate 743. The side of the support inclined plate 743 close to the glass sheet is an inner concave arc surface.

[0122] When handling an abnormality, in the early stage, when the middle connecting column 75 extends outward, the glass sheet guide assembly 74 follows the movement. When the glass sheet clamping assembly 76 is driven to move above the discharge assembly 9, the displacement motor 744 works, driving the traction wheel 745 to rotate, and then driving the slider 741 to move through the traction rope 746. The slider 741 will squeeze the spring 752 when moving, and the slider 741 drives the supporting inclined plate to move to the entrance end of the discharge assembly 9 and is placed under the glass sheet; when conveying qualified materials, the slider 741 conflicts with the guide tube 72, and the supporting inclined plate 743 is staggered and placed on the side of the qualified glass sheet.

[0123] In this embodiment, the discharging assembly 9 includes a discharging inclined plate 91, a first waste pulling roller 92, and a second waste pulling roller 93. The discharging inclined plate 91 is tilted in the discharging trough 14. The top upper part of the discharging inclined plate 91 is provided with a first waste pulling roller 92, and the bottom upper part is provided with a second waste pulling roller 93. The second waste pulling roller 93 is arranged in the waste recovery furnace 6, and the first waste pulling roller 92 is arranged in the vertical transfer furnace 13.

[0124] The discharge inclined plate 91 can guide the abnormal glass flakes into the waste recovery furnace 6 to facilitate subsequent processing by workers. The first waste traction roller 92 and the second waste traction roller 93 can ensure the traction output effect, so that the abnormal glass flakes can be completely discharged.

[0125] In this embodiment, when the waste handling system is not in operation: the second vertical traction roller 121, the auxiliary traction roller, the glass sheet clamping assembly 76, and the third vertical traction roller 131 are located at the same vertical center line; the glass sheet guide assembly 74 is abutted against the end of the guide tube 72, and the glass sheet guide assembly is spaced apart and placed on one side of the glass sheet.

[0126] In this embodiment, the cutting assembly 4 includes a pneumatic rod and a cutter. The pneumatic rod is arranged on the side of the vertical converter 13, and the inner end of the pneumatic rod is provided with a cutter.

[0127] In this embodiment, the working method of the waste treatment system is as follows:

[0128] The left and right cutting components 4 act synchronously to cut off the initial end of the abnormal glass sheet and then separate it; the qualified glass sheet continues to be transported downward through the third vertical traction roller 131;

[0129] The turning motor 51 drives the swing arm 53 to rotate, so that the auxiliary traction roller 54 deviates from the center line of the vertical converter 13 by 15-30°;

[0130] The second hydraulic rod 71 drives the movable rod 711 to move along the guide tube 72, so that the guide rod 73 and the middle connecting column 75 extend synchronously. When the middle connecting column 75 moves, it drives the glass sheet clamping assembly 76 and the glass sheet guiding assembly 74 to move synchronously.

[0131] When the glass sheet clamping assembly 76 drives the initial end of the abnormal glass sheet to move above the top of the discharge inclined plate 91, the second hydraulic rod 71 stops moving;

[0132] The glass sheet guide assembly 74 moves toward one end of the glass sheet clamping assembly 76 to approach the abnormal glass sheet so that the bottom end of the glass sheet guide assembly 74 is connected to the top end of the discharge inclined plate 91 as a whole. At this time, the bottom of the glass sheet guide assembly 74 is placed below the abnormal glass sheet.

[0133] The abnormal glass flakes are driven by the second vertical traction roller 121 and the auxiliary traction roller 54 to enter the discharge inclined plate 91 along the glass flake guide assembly 74, and then enter the waste recovery furnace 6 along the discharge inclined plate 91 driven by the first waste traction roller 92 and the second waste traction roller 93;

[0134] After the abnormal glass sheet is conveyed, the left and right cutting components 4 act synchronously to cut off the end of the abnormal glass sheet and then separate;

[0135] The deflection conveying assembly 5 and the glass sheet displacement assembly 7 are reset to the non-operating state.

[0136] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0137] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A belt-shaped glass BOW-shaped control method based on online temperature detection, characterized in that: The control method comprises the following steps: S1. Overflow molding: The molten glass is transported through platinum pipes to the overflow bricks in the muffle furnace; When the overflow brick is full, the molten glass will overflow along the two sides of the overflow brick to the inclined wall surface, and the two streams of glass will merge at the bottom of the overflow brick to form a glass plate root; The glass sheet is pulled downward by a plurality of first vertical pulling rollers to obtain a flexible glass ribbon; S2. Annealing test: S2.1, the glass ribbon is transported downward to the annealing furnace directly below the muffle furnace by a first vertical pulling roller, and a plurality of second vertical pulling rollers in the annealing furnace pull the glass ribbon downward; S2.2, the thermocouple between the second vertical traction rollers detects the temperature of the glass ribbon online, and transmits the temperature data to the background analysis platform; S2.

3. The background analysis platform processes the temperature data and determines whether the temperature exceeds the threshold: If yes, the temperature of the glass ribbon is abnormal and the glass ribbon cannot be made into a BOW shape. The background analysis platform determines the length of the abnormal glass ribbon and enters S3; If not, the temperature of the glass ribbon is normal, and the process goes to S4; S3. Exception handling: The abnormal glass ribbon is further transported to the vertical transfer furnace directly below the annealing furnace through the second vertical traction roller; The backend analysis platform links the on-site alarm system to alert workers to adjust the working parameters of the muffle furnace and annealing furnace; The backend analysis platform links the waste treatment system in the transfer furnace to switch to working state, cuts off the abnormal glass ribbon of specified length and transfers it to the waste recovery furnace; Determine whether the length transferred to the waste recovery furnace reaches the abnormal length determined by the background analysis platform: If yes, the abnormal glass ribbon is processed, the waste treatment system is reset to the non-operating state, and the process returns to S2.3; If not, the abnormal part has not been processed and the waste treatment system remains in working condition; S4. Qualified material output: The qualified glass ribbon is further transported to the vertical transfer furnace through the second vertical traction roller; The waste handling system in the non-working state continues to pull and transport the qualified glass ribbon downward; The qualified glass ribbon is finally turned and transported to the horizontal converter connected to the bottom of the vertical converter by the third vertical traction roller; The overflow brick, the first vertical traction roller, the second vertical traction roller, and the third vertical traction roller are all located on the same vertical center line; The waste material processing system includes a deflection conveying assembly, a cutting assembly, a glass sheet displacement assembly, and a discharging assembly; The deflection conveying assembly is symmetrically installed on the inner top of the vertical transfer furnace, and the glass sheet displacement assembly is installed below the deflection conveying assembly; the cutting assembly is symmetrically installed in the middle of the vertical transfer furnace, the cutting assembly is located below the glass sheet displacement assembly, and the third vertical traction roller is arranged below the cutting assembly; The waste recovery furnace is arranged outside the vertical transfer furnace, and a discharge trough connected to the waste recovery furnace is opened on the side of the vertical transfer furnace, and a discharge assembly is installed inside the discharge trough; The glass sheet passes through the deflection conveying assembly, the glass sheet displacement assembly, the cutting assembly, and the third vertical traction roller in sequence from top to bottom; The deflection conveying assembly includes a flipping motor, a base, a swing arm and an auxiliary traction roller. The base is arranged at the inner top of the vertical converter. The top end of the swing arm is rotatably connected to the base and a flipping motor is installed at the rotating connection. The bottom end of the swing arm is rotatably connected to the auxiliary traction roller.

2. The method for controlling the BOW shape of ribbon glass based on online temperature detection according to claim 1, characterized in that: A plurality of thermocouples are vertically spaced and fixed to the outer wall of the annealing furnace by screws.

3. The method for controlling the BOW shape of ribbon glass based on online temperature detection according to claim 1, characterized in that: In S2.3, the background analysis platform processes the temperature data and determines whether the temperature exceeds the threshold. The specific process is: The temperature data collected by each thermocouple is transmitted to the monitoring platform; The monitoring platform plots the temperature data into a real-time curve trend chart; Compare the real-time curve trend chart with the standard curve trend chart built into the monitoring platform; Determine whether the real-time curve trend graph exceeds the upper and lower thresholds of the standard curve trend graph.

4. The method for controlling the BOW shape of ribbon glass based on online temperature detection according to claim 1, characterized in that: The glass sheet displacement assembly includes a second hydraulic rod, which is installed on the outer wall of the vertical transfer furnace. The inner wall of the vertical transfer furnace is provided with a guide tube. The movable rod at the end of the second hydraulic rod slides through the vertical transfer furnace and the guide tube. The end of the movable rod is connected to the guide rod, which slides through the guide tube. The outer end of the guide rod is connected to a center column. The outer wall of the center column is slidably covered with a glass sheet guide assembly, and the outer end of the center column is connected to a glass sheet clamping assembly; the glass sheet penetrates the glass sheet clamping assembly.

5. The method for controlling the BOW shape of ribbon glass based on online temperature detection according to claim 4, characterized in that: The discharging assembly includes a discharging inclined plate, a first scrap traction roller, and a second scrap traction roller. The discharging inclined plate is tilted in the discharging trough. The first scrap traction roller is provided on the upper top of the discharging inclined plate, and the second scrap traction roller is provided on the upper bottom. The second scrap traction roller is arranged in the scrap recovery furnace, and the first scrap traction roller is arranged in the vertical transfer furnace.

6. The method for controlling the BOW shape of ribbon glass based on online temperature detection according to claim 5, characterized in that: When the waste processing system is not in operation: the second vertical traction roller, the auxiliary traction roller, the glass sheet clamping assembly, and the third vertical traction roller are located at the same vertical center line; the glass sheet guide assembly is abutted against the end of the guide tube, and the glass sheet guide group is spaced apart and placed on one side of the glass sheet.

7. The method for controlling the BOW shape of ribbon glass based on online temperature detection according to claim 6, characterized in that: The working method of the waste treatment system is as follows: The left and right cutting components act synchronously to cut off the initial end of the abnormal glass slices and then separate them; the qualified glass slices continue to be transported downward through the third vertical traction roller; The tilting motor drives the swing arm to rotate, so that the auxiliary traction roller deviates from the vertical converter centerline by 15-30°; The second hydraulic rod drives the movable rod to move along the guide tube, so that the guide rod and the middle connecting column extend synchronously, and the middle connecting column drives the glass sheet clamping assembly and the glass sheet guiding assembly to move synchronously when moving; When the glass sheet clamping assembly drives the initial end of the abnormal glass sheet to move above the top end of the discharge inclined plate, the second hydraulic rod stops moving; The glass sheet guide assembly moves toward one end of the glass sheet clamping assembly to approach the abnormal glass sheet so that the bottom end of the glass sheet guide assembly is connected with the top end of the discharge inclined plate as a whole. At this time, the bottom of the glass sheet guide assembly is placed below the abnormal glass sheet. The abnormal glass flakes are driven by the second vertical traction roller and the auxiliary traction roller to enter the discharge inclined plate along the glass flake guide assembly, and then the abnormal glass flakes are driven by the first waste traction roller and the second waste traction roller to enter the waste recovery furnace along the discharge inclined plate; After the abnormal glass sheet is conveyed, the left and right cutting components will act synchronously to cut off the end of the abnormal glass sheet and then separate; The deflection conveying assembly and the glass sheet displacement assembly are reset to the non-operating state.

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