Intelligent control method and system for calendering molding of 1.6mm ultra-thin aesthetic glass

Abstract

This invention discloses an intelligent control method and system for the calendering and forming of 1.6mm ultra-thin aesthetic glass, relating to the field of glass calendering and forming technology. The method includes: S1 collecting process parameters and quality indicators and storing them in a knowledge base; S2 establishing a thickness-traction rate coupled control model, outputting the optimal traction rate based on the principle that a lower traction rate results in a smaller thickness difference; S3 collaboratively controlling the upper roll temperature of the calender at 490-500℃ and the lower roll temperature at 360-380℃; S4 dynamically adjusting the roll washing frequency to once every 48 hours; S5 establishing a customer quality standard database and adjusting the annealing furnace and cold end processes in a closed loop; S6 determining mass production after meeting the standards. The system includes a data acquisition module, a knowledge base and coupled control module, a temperature collaborative control module, a roll washing optimization module, a quality closed-loop control module, a central control unit, and an actuator. This invention achieves stable mass production with a thickness difference ≤0.10mm and a yield ≥75%.

Description

Technical Field

[0001] This invention relates to the field of glass rolling forming technology, specifically to an intelligent control method and system for rolling forming of 1.6mm ultra-thin aesthetic glass. Background Technology

[0002] With the rapid development of high-end building materials, photovoltaic power generation, and electronic displays, the market demand for thin, aesthetically pleasing glass is increasing. 1.6mm ultra-thin aesthetic glass, due to its advantages such as lightness, beauty, and adaptability, has become an important trend in the industry. Lightweighting of photovoltaic modules can reduce manufacturing costs and improve installation efficiency, and thinner glass contributes significantly to this. However, the current rolling forming process for 1.6mm ultra-thin aesthetic glass is still immature, mainly facing the following technical bottlenecks: (i) Unclear forming process parameters. When producing ultra-thin glass with a thickness of less than 3mm, the stable control of the thickness difference of the glass sheet becomes a core technical challenge. In the existing technology, there is a lack of systematic research and clear parameter ranges for core process parameters such as forming temperature, rolling traction rate, and drawing amount for 1.6mm ultra-thin glass, which leads to the reliance on manual experience for process adjustment and poor reproducibility.

[0003] (ii) Unstable temperature control of the upper and lower rollers in the calendering machine. During the calendering process, the upper and lower rollers are affected by heat differently. The upper roller is in direct contact with the high-temperature molten glass, resulting in greater temperature fluctuations; the lower roller mainly transfers heat through the glass strip, leading to a delayed temperature response. The incoordination of temperature control between the upper and lower rollers directly affects the thickness uniformity and surface quality of the glass sheet. This problem is particularly prominent for 1.6mm ultra-thin glass, as inconsistent roller surface temperatures result in inconsistent thickness on both sides of the pressed glass.

[0004] (iii) The inherent quality of the raw glass sheet is insufficient to meet the requirements of downstream processing. The 1.6mm ultra-thin glass sheet has quality defects in cutting, bending, and light transmittance, resulting in a low product qualification rate and unstable performance. As the glass thickness decreases, the difficulty of annealing control increases, leading to more defects.

[0005] (iv) Lack of intelligent closed-loop control methods. Existing rolling mill control systems are insufficient in terms of control accuracy, response speed, and stability, making it difficult to meet the high requirements of ultra-thin glass production. Parameter adjustments are mostly performed manually, lacking intelligent decision-making and closed-loop control capabilities based on real-time data.

[0006] Therefore, there is an urgent need to develop an intelligent calendering control method and system that can systematically solve the above problems. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the existing defects and provide an intelligent control method and system for calendering of 1.6mm ultra-thin aesthetic glass. This method and system can clearly define the core process parameters, achieve coordinated and stable control of the temperature of the upper and lower rollers, improve product quality and yield, and effectively solve the problems in the background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an intelligent control method for the rolling forming of 1.6mm ultra-thin aesthetic glass, comprising the following steps: S1: Collect multiple sets of process parameter data and corresponding product quality index data during the calendering process, and store them in the process parameter knowledge base; S2: Based on the process parameter knowledge base, establish a thickness-traction rate coupled control model, and automatically calculate and output the optimal traction rate setting value according to the target thickness requirement; S3: Under the condition of fixed drawing amount and forming temperature, monitor and coordinate the temperature of the upper roll and the lower roll of the calender in real time, so that the temperature of the upper roll and the temperature of the lower roll are respectively within their respective preset target ranges; S4: Dynamically adjust the washing frequency of the calender roll according to the surface condition monitoring data of the calender roll, record the stable production cycle after each washing, and automatically increase the washing frequency when the stable production cycle is lower than the preset value. S5: Establish a database containing multiple customer quality standard requirements, monitor the quality parameters of finished glass in real time, and automatically adjust the annealing furnace process parameters and / or cold end process parameters when the detected value deviates from the corresponding target control range until the quality parameters return to the target control range. S6: When all process parameters and product quality indicators from S1 to S5 reach the preset target values, it is determined that the conditions for large-scale production are met, and the solidified process parameter scheme is output.

[0009] Furthermore, in S1, the process parameter data includes at least the forming temperature, drawing amount, calendering pressure, traction rate, upper roll temperature of the calender, lower roll temperature of the calender, roll washing frequency, and stable production cycle; the product quality indicators include at least the glass thickness, thickness difference, and average thickness.

[0010] Furthermore, in S2, the thickness-traction rate coupling control model is established based on the following principle: under the condition that the drawing amount and forming temperature remain unchanged, the lower the traction rate, the smaller the thickness difference; the model automatically matches the optimal traction rate setting value according to the requirements of target average thickness ≥ 1.72 mm and target thickness difference ≤ 0.10 mm.

[0011] Furthermore, in S3, the preset target range for the upper roller temperature is 490–500°C, with an upper limit threshold of 520°C; the preset target range for the lower roller temperature is 360–380°C, with an upper limit threshold of 410°C; the upper roller temperature and the lower roller temperature are independently controlled by adjusting the cooling water flow rate and / or the air cooling intensity, respectively. When the temperature of either roller exceeds the corresponding preset target range, the cooling parameters of that roller are automatically adjusted until the temperature returns to the target range.

[0012] Furthermore, in S4, under the conditions of a drawing volume of 220 tons / day, a forming temperature of 1150℃±5℃, an upper roll temperature of 490~500℃, and a lower roll temperature of 360~380℃, the roll washing frequency is set to once every 48 hours, and the stable production cycle is extended to more than 15 days; the cleaning cycle of the lower roll of the calender is ≥48 hours, and the cleaning cycle of the upper roll of the calender is ≥20 days.

[0013] Furthermore, in S5, the customer quality standard requirements include at least aesthetic standards, cutting standards, curvature standards, and light transmittance standards; the aesthetic standards are determined comprehensively based on the aesthetic requirements of multiple downstream customers, with a target control range of: a value 0.05~0.3, b value -2~-0.5, and color difference value ΔE*ab≤2; the cutting standards include a cutting defect rate threshold, the curvature standards include a curvature threshold, and the light transmittance standards include a lower limit threshold for light transmittance.

[0014] Furthermore, in S6, the preset target values ​​include: stable production cycle ≥ 20 days, yield ≥ 75%, average thickness ≥ 1.72 mm, thickness difference ≤ 0.10 mm, calender lower roll cleaning cycle ≥ 48 hours and calender upper roll cleaning cycle ≥ 20 days; when all the above indicators meet the standards, it is determined that the conditions for large-scale production are met.

[0015] A smart control system for calendering 1.6mm ultra-thin aesthetic glass includes: The data acquisition module is used to collect process parameter data and product quality data in real time during the calendering process; The process parameter knowledge base module is connected to the data acquisition module and is used to store and manage historical process parameter data and corresponding product quality data. The thickness-traction rate coupling control module is connected to the process parameter knowledge base module and is used to automatically calculate and output the optimal traction rate setting value according to the target thickness requirement. The upper and lower roll temperature coordinated control module is connected to the data acquisition module and is used to monitor and coordinate the temperature of the upper roll and / or the lower roll of the calender in real time. A roller washing cycle optimization module, connected to the data acquisition module, is used to dynamically adjust the roller washing frequency according to the surface condition of the calender roll. A quality closed-loop control module, connected to the data acquisition module, is used to perform real-time detection and feedback control of the quality parameters of the finished glass according to the quality standards of downstream customers. The central control unit is connected to each of the above modules and is used to receive data from each module, make comprehensive decisions, and output control commands. An actuator, connected to the central control unit, is used to receive and execute control commands to adjust the operating parameters of the calender.

[0016] Furthermore, the data acquisition module includes a temperature sensor, a pressure sensor, a thickness gauge, and a quality parameter detector, which are used to acquire forming temperature, rolling pressure, glass thickness, and quality parameters, respectively. The temperature sensor includes an infrared thermometer and a thermocouple. The quality parameter detector includes an optical detector for detecting optical performance, a cutting quality detector for detecting cutting performance, a bending degree detector for detecting bending performance, and a light transmittance detector for detecting light transmittance. The thickness gauge is located at the calender outlet, and the quality parameter detector is located at the cold end outlet.

[0017] Furthermore, the central control unit communicates bidirectionally with the data acquisition module, process parameter knowledge base module, thickness-traction rate coupling control module, upper and lower roll temperature collaborative control module, washing roll cycle optimization module, and quality closed-loop control module via industrial Ethernet or fieldbus. The central control unit generates control commands based on the traction rate setpoint output by the coupling control module, the temperature adjustment amount output by the temperature collaborative control module, the washing roll command output by the washing roll optimization module, and the process adjustment amount output by the quality closed-loop control module, and sends these commands to the actuator. The upper and lower roll temperature collaborative control module includes an upper roll temperature controller and a lower roll temperature controller. The upper roll temperature controller is connected to an upper roll cooling water valve and / or an upper roll air-cooling device, and the lower roll temperature controller is connected to a lower roll cooling water valve and / or a lower roll air-cooling device. The central control unit sends temperature setpoints to both the upper and lower roll temperature controllers.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. The core process parameters for 1.6mm ultra-thin aesthetic glass were clarified. Through systematic experimental research and data accumulation, the optimal range of key parameters such as forming temperature, rolling pressure, and traction rate under different drawing conditions was determined, filling the technical gap in the rolling forming process parameters of 1.6mm ultra-thin aesthetic glass.

[0019] 2. Achieved precise coupled control of thickness and traction rate. For the first time, it was revealed that under the condition of constant drawing amount and forming temperature, the lower the traction rate, the smaller the thickness difference. Based on this, a thickness-traction rate coupled control model was established, which can achieve high-precision control of thickness difference ≤0.10mm.

[0020] 3. Coordinated and stable temperature control of the upper and lower rolls was achieved. By independently monitoring and coordinating the temperature of the upper roll (490-500℃) and the temperature of the lower roll (360-380℃), the stability of the temperature field of the calendering roll was ensured, effectively improving the thickness uniformity of 1.6mm ultra-thin glass.

[0021] 4. Significantly extended stable production cycle. By optimizing the roller washing frequency (once every 48 hours), the stable production cycle is extended from the conventional level to more than 15 days (preferably more than 20 days), greatly improving production efficiency and equipment utilization.

[0022] 5. Intelligent closed-loop control of aesthetic quality has been achieved. A database covering mainstream customer aesthetic standards has been established, and target control ranges for a value (0.05-0.3), b value (-2 to -0.5), and ΔE*ab≤2 have been determined, realizing closed-loop quality control throughout the entire process from raw material production to downstream demand.

[0023] 6. Improved product qualification rate and quality consistency. Through the above-mentioned intelligent control methods and systems, the technical indicators of ≥75% yield of 1.6mm ultra-thin aesthetic glass, average thickness ≥1.72mm, and thickness difference ≤0.10mm can be achieved, significantly improving product quality and market competitiveness.

[0024] 7. The technological achievements have been fully solidified and promoted on the production line. Data from large-scale production verification has been compiled into a pilot-scale report, and systematic training has been provided to relevant personnel to ensure the solidified process parameters operate stably on the production line, achieving efficient transformation of R&D results into productivity. Attached Figure Description

[0025] Figure 1 This is a flowchart illustrating the intelligent control method for calendering and forming of 1.6mm ultra-thin aesthetic glass according to the present invention. Figure 2 This is a structural block diagram of the intelligent control system for calendering and forming of 1.6mm ultra-thin aesthetic glass according to the present invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-2 The present invention provides the following embodiments: Example 1

[0028] This embodiment provides a smart control method for the rolling forming of 1.6mm ultra-thin aesthetic glass, including the following steps: Step S1: Construct a knowledge base for process parameters.

[0029] Data was collected on the actual production line of 1.6mm ultra-thin aesthetic glass. Under the conditions of thickness control between 1.65mm and 1.80mm, thickness difference ≤0.10mm, and average thickness ≥1.72mm, the following process parameter data were collected: When the drawing capacity is 200 tons / day: the forming temperature is 1170℃ (infrared thermometry), the calendering pressure is 9000-9500 kg, the thickness difference is 0.09 mm when the drawing rate is 1.95, and the thickness difference is 0.15 mm when the drawing rate is 2.05.

[0030] When the drawing capacity is 220 tons / day: the forming temperature is 1160℃ (infrared thermometry), the calendering pressure is 8000-8500 kg, the thickness difference is 0.1-0.15 mm when the drawing rate is 1.95, and the thickness difference is 0.20 mm when the drawing rate is 2.05.

[0031] The above data is entered into the process parameter knowledge base to form the initial dataset.

[0032] Step S2: Establish a thickness-traction rate coupled control model.

[0033] Based on the process parameter knowledge base constructed in step S1, a coupling relationship model between thickness and draw ratio is established. The model is based on the following principle: under the condition that the drawing amount and forming temperature remain unchanged, the lower the draw ratio, the smaller the thickness difference.

[0034] When the production target requires a thickness difference of ≤0.10mm, if the drawing amount is 200 tons / day and the forming temperature is 1170℃, the model will automatically set the traction rate to 1.95; if the drawing amount is 220 tons / day and the forming temperature is 1160℃, the model will automatically set the traction rate to 1.95.

[0035] Step S3: Implement coordinated temperature control of the upper and lower rolls of the calender.

[0036] Under the conditions of 220 tons / day of drawing capacity and 1150℃±5℃ forming temperature, the temperature of the upper and lower rollers is controlled in a coordinated manner: Upper roller temperature control: By adjusting the cooling water flow rate of the upper roller, the temperature of the upper roller is controlled within the range of 490-500℃ (upper limit 520℃). Lower roller temperature control: By adjusting the cooling water flow rate of the lower roller, the temperature of the lower roller is controlled within the range of 360-380℃ (upper limit 410℃). Collaborative control: Real-time monitoring of the temperature of the upper and lower rollers. When the temperature of the upper roller approaches the upper limit of 520℃, the cooling water flow rate of the upper roller is automatically increased; when the temperature of the lower roller approaches the upper limit of 410℃, the cooling water flow rate of the lower roller is automatically increased; ensuring that the temperature of both rollers is always within the target range.

[0037] Step S4: Implement optimized control of the washing roller cycle.

[0038] Under stable operating conditions of 220 tons / day drawing capacity, forming temperature 1150℃±5℃, upper roller temperature 490-500℃, and lower roller temperature 360-380℃: The initial roller washing frequency was once every 24 hours, and the stable production cycle was approximately 7-10 days. By gradually extending the roller washing interval, when the roller washing frequency was reduced to once every 48 hours, the stable production cycle was extended to 15 days.

[0039] The parameter combination of a washing roller frequency of once every 48 hours and a stable production cycle of 15 days is entered into the process parameter knowledge base as the optimal process scheme. When the stable production cycle is less than 10 days, the system will automatically prompt and suggest increasing the washing roller frequency.

[0040] Step S5: Implement closed-loop quality control.

[0041] Establish a database containing quality standard requirements from multiple customers, as detailed in Table 1 below: Table 1 Database of Quality Standard Requirements from Multiple Customers

[0042] Based on the standards of various customers, the target control range for 1.6mm ultra-thin aesthetic glass is determined as follows: a value 0.05-0.3, b value -2 to -0.5, ΔE*ab≤2.

[0043] The system monitors the a-value, b-value, and ΔE*ab of the finished glass in real time. When the detected values ​​deviate from the target control range, it automatically adjusts the annealing furnace process parameters (such as the annealing temperature profile) and / or the cold end process parameters (such as the cutting speed and cooling conditions) until the optical performance parameters return to the target control range.

[0044] Meanwhile, the cutting performance (cutting defect rate), bending performance (bending degree) and light transmittance of the finished glass are monitored in real time. When the detected value deviates from the corresponding target control range, the corresponding process parameters are automatically adjusted.

[0045] Step S6: Determine whether production can be scaled up.

[0046] When all the above process parameters reach the preset target values, and the stable production cycle is ≥20 days, the yield is ≥75%, the average thickness is ≥1.72mm, the thickness difference is ≤0.10mm, the cleaning cycle of the lower roller of the calender is ≥48 hours and the cleaning cycle of the upper roller of the calender is ≥20 days, it is determined that the conditions for large-scale production are met, and the solidified process parameter scheme is output.

[0047] Example 2

[0048] This embodiment provides an intelligent control system for the rolling and forming of 1.6mm ultra-thin aesthetic glass, including: The data acquisition module is used to collect process parameter data and product quality data in real time during the calendering process. This module includes temperature sensors (infrared thermometer and thermocouple), pressure sensors, a thickness gauge, and quality parameter detectors (optical detector, cutting quality detector, curvature detector, and light transmittance detector). The thickness gauge is located at the calender exit, and the quality parameter detectors are located at the cold end exit.

[0049] The process parameter knowledge base module is connected to the data acquisition module and is used to store and manage historical process parameter data and corresponding product quality data.

[0050] The thickness-traction rate coupling control module is connected to the process parameter knowledge base module and is used to automatically calculate and output the optimal traction rate setting value according to the target thickness requirement.

[0051] An upper and lower roll temperature coordinated control module, connected to the data acquisition module, is used to monitor and coordinately control the temperature of the upper roll and / or the lower roll of the calender in real time. This module includes an upper roll temperature controller and a lower roll temperature controller. The upper roll temperature controller is connected to the upper roll cooling water valve and / or the upper roll air-cooling device, and the lower roll temperature controller is connected to the lower roll cooling water valve and / or the lower roll air-cooling device.

[0052] The washing roll cycle optimization module is connected to the data acquisition module and is used to dynamically adjust the washing roll frequency according to the surface condition of the calender roll.

[0053] The quality closed-loop control module, connected to the data acquisition module, is used to perform real-time detection and feedback control of the quality parameters of the finished glass according to the quality standards required by downstream customers.

[0054] The central control unit is connected to each of the above modules (through bidirectional communication via industrial Ethernet or fieldbus) to receive data from each module, make comprehensive decisions, and output control commands.

[0055] An actuator, connected to the central control unit, is used to receive and execute control commands to adjust the operating parameters of the calender.

[0056] Example 3

[0057] This embodiment provides verification results of large-scale production using the method and system of the present invention.

[0058] On a 1.6mm ultra-thin aesthetic glass production line, the method described in Example 1 and the system described in Example 2 were combined for large-scale production verification, and the various indicators are as follows: Stable production cycle: ≥20 days; Yield: ≥75%; Average thickness: ≥1.72mm; Thickness difference: ≤0.10mm; Calender lower roll cleaning cycle: ≥48 hours; Calender upper roller cleaning cycle: ≥20 days; Optical performance: a value 0.05-0.3, b value -2 to -0.5, ΔE*ab≤2; Cutting performance: Meets the cutting requirements of downstream customers; Bending performance: Meets the bending requirements of downstream customers; Light transmittance: Meets the light transmittance requirements of downstream customers.

[0059] All of the above indicators meet the design requirements, proving that the intelligent control method and system for calendering and forming of 1.6mm ultra-thin aesthetic glass of the present invention has good practicality and promotion value.

[0060] Example 4

[0061] This embodiment provides the process of solidifying technological achievements and promoting them on the production line after achieving large-scale production standards.

[0062] After all indicators in the large-scale production verification of Example 3 have met the standards, the following technical achievements will be solidified and promoted on the production line: First, based on all the experimental data, quality inspection data, and equipment operation data accumulated in steps S1 to S5, a pilot-scale report is compiled and written. This pilot-scale report should include at least the following core contents: the optimal molding temperature under different drawing conditions, the calender pressure setting range, the corresponding data of the traction rate and thickness difference, the temperature control curves of the upper and lower rolls, the corresponding relationship between the roll washing cycle and the stable production cycle, and the compliance status of each customer's aesthetic standards, forming a complete solidified process parameter scheme.

[0063] Secondly, based on the curing process parameter scheme formed in the pilot test report, systematic training was conducted for relevant operators in the calendering, annealing, and cold-end sections. The training content included: the basis for setting and adjusting various process parameters, key points for monitoring the coordinated control of upper and lower roller temperatures, the criteria and operating procedures for determining the roller washing cycle, and the testing methods and feedback adjustment procedures for quality parameters.

[0064] Finally, trained operators are put to work according to the fixed process parameters to ensure that the production line continuously and stably produces 1.6mm ultra-thin aesthetic glass that meets acceptance standards, thus achieving efficient transformation of research and development results into productivity.

[0065] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A smart control method for calendering and forming 1.6mm ultra-thin aesthetic glass, characterized in that, Includes the following steps: S1: Collect multiple sets of process parameter data and corresponding product quality index data during the calendering process, and store them in the process parameter knowledge base; S2: Based on the process parameter knowledge base, establish a thickness-traction rate coupled control model, and automatically calculate and output the optimal traction rate setting value according to the target thickness requirement; S3: Under the condition of fixed drawing amount and forming temperature, monitor and coordinate the temperature of the upper roll and the lower roll of the calender in real time, so that the temperature of the upper roll and the temperature of the lower roll are respectively within their respective preset target ranges; S4: Dynamically adjust the washing frequency of the calender roll according to the surface condition monitoring data of the calender roll, record the stable production cycle after each washing, and automatically increase the washing frequency when the stable production cycle is lower than the preset value. S5: Establish a database containing multiple customer quality standard requirements, monitor the quality parameters of finished glass in real time, and automatically adjust the annealing furnace process parameters and / or cold end process parameters when the detected value deviates from the corresponding target control range until the quality parameters return to the target control range. S6: When all process parameters and product quality indicators from S1 to S5 reach the preset target values, it is determined that the conditions for large-scale production are met, and the solidified process parameter scheme is output.

2. The intelligent control method for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 1, characterized in that, In S1, the process parameter data includes at least the forming temperature, drawing amount, calendering pressure, traction rate, upper roll temperature of calender, lower roll temperature of calender, roll washing frequency, and stable production cycle; the product quality indicators include at least the glass thickness, thickness difference, and average thickness.

3. The intelligent control method for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 1, characterized in that, In S2, the thickness-traction rate coupling control model is established based on the following principle: under the condition that the drawing amount and forming temperature remain unchanged, the lower the traction rate, the smaller the thickness difference; the model automatically matches the optimal traction rate setting value according to the requirements of target average thickness ≥ 1.72 mm and target thickness difference ≤ 0.10 mm.

4. The intelligent control method for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 1, characterized in that, In step S3, the preset target range for the upper roller temperature is 490–500°C, with an upper threshold of 520°C; the preset target range for the lower roller temperature is 360–380°C, with an upper threshold of 410°C; the upper roller temperature and the lower roller temperature are independently controlled by adjusting the cooling water flow rate and / or the air cooling intensity, respectively. When the temperature of either roller exceeds the corresponding preset target range, the cooling parameters of that roller are automatically adjusted until the temperature returns to the target range.

5. The intelligent control method for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 1, characterized in that, In S4, under the conditions of a drawing volume of 220 tons / day, a forming temperature of 1150℃±5℃, an upper roller temperature of 490~500℃, and a lower roller temperature of 360~380℃, the roller washing frequency is set to once every 48 hours, and the stable production cycle is extended to more than 15 days; the cleaning cycle of the lower roller of the calender is ≥48 hours, and the cleaning cycle of the upper roller of the calender is ≥20 days.

6. The intelligent control method for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 1, characterized in that, In S5, the customer quality standard requirements include at least aesthetic standards, cutting standards, curvature standards, and light transmittance standards. The aesthetic standards are determined comprehensively based on the aesthetic requirements of multiple downstream customers, with a target control range of: a value 0.05 to 0.3, b value -2 to -0.5, and color difference value ΔE*ab ≤ 2. The cutting standards include a cutting defect rate threshold, the curvature standards include a curvature threshold, and the light transmittance standards include a lower limit threshold for light transmittance.

7. The intelligent control method for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 1, characterized in that, In step S6, the preset target values ​​include: stable production cycle ≥ 20 days, yield ≥ 75%, average thickness ≥ 1.72 mm, thickness difference ≤ 0.10 mm, calender lower roll cleaning cycle ≥ 48 hours and calender upper roll cleaning cycle ≥ 20 days; when all the above indicators meet the standards, it is determined that the conditions for large-scale production are met.

8. An intelligent control system for calendering and forming 1.6mm ultra-thin aesthetic glass, used to implement the intelligent control method for calendering and forming 1.6mm ultra-thin aesthetic glass as described in any one of claims 1-7, characterized in that, include: The data acquisition module is used to collect process parameter data and product quality data in real time during the calendering process; The process parameter knowledge base module is connected to the data acquisition module and is used to store and manage historical process parameter data and corresponding product quality data. The thickness-traction rate coupling control module is connected to the process parameter knowledge base module and is used to automatically calculate and output the optimal traction rate setting value according to the target thickness requirement. The upper and lower roll temperature coordinated control module is connected to the data acquisition module and is used to monitor and coordinate the temperature of the upper roll and / or the lower roll of the calender in real time. A roller washing cycle optimization module, connected to the data acquisition module, is used to dynamically adjust the roller washing frequency according to the surface condition of the calender roll. A quality closed-loop control module, connected to the data acquisition module, is used to perform real-time detection and feedback control of the quality parameters of the finished glass according to the quality standards of downstream customers. The central control unit is connected to each of the above modules and is used to receive data from each module, make comprehensive decisions, and output control commands. An actuator, connected to the central control unit, is used to receive and execute control commands to adjust the operating parameters of the calender.

9. The intelligent control system for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 8, characterized in that, The data acquisition module includes a temperature sensor, a pressure sensor, a thickness gauge, and a quality parameter detector, which are used to collect forming temperature, rolling pressure, glass thickness, and quality parameters, respectively. The temperature sensor includes an infrared thermometer and a thermocouple. The quality parameter detector includes an optical detector for detecting optical performance, a cutting quality detector for detecting cutting performance, a bending performance detector for detecting bending performance, and a light transmittance detector for detecting light transmittance. The thickness gauge is located at the exit of the rolling mill, and the quality parameter detector is located at the cold end exit.

10. The intelligent control system for calendering and forming of 1.6mm ultra-thin aesthetic glass according to claim 8, characterized in that, The central control unit communicates bidirectionally with the data acquisition module, process parameter knowledge base module, thickness-traction rate coupling control module, upper and lower roll temperature collaborative control module, washing roll cycle optimization module, and quality closed-loop control module via industrial Ethernet or fieldbus. The central control unit generates control commands based on the traction rate setpoint output by the coupling control module, the temperature adjustment amount output by the temperature collaborative control module, the washing roll command output by the washing roll optimization module, and the process adjustment amount output by the quality closed-loop control module, and sends these commands to the actuator. The upper and lower roll temperature collaborative control module includes an upper roll temperature controller and a lower roll temperature controller. The upper roll temperature controller is connected to an upper roll cooling water valve and / or an upper roll air-cooling device, and the lower roll temperature controller is connected to a lower roll cooling water valve and / or a lower roll air-cooling device. The central control unit sends temperature setpoints to both the upper and lower roll temperature controllers.

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