Intelligent control system for glass production line

By using an intelligent control system with redundant PLC controller and main and standby switching channels on the glass production line, the long-term downtime caused by failures in the prior art is solved, the continuity and stability of production are achieved, and the production efficiency and system reliability are improved.

CN119556654APending Publication Date: 2025-03-04信义节能玻璃(江门)有限公司
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Patent Information

Application Number
CN202411679913.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-03-04

AI Technical Summary

Technical Problem

When the control system of the existing glass production line encounters a failure, it lacks an effective response mechanism, which leads to long-term shutdown of the production line, causing huge downtime losses, and it is difficult to quickly resume production.

Method used

Multiple PLC controllers are used to form a redundant control architecture, and the production without stopping is achieved through the main and standby switching channels. The operating status of the glass cleaning machine and the glass flat press are monitored in real time, a fault monitoring model is established and the equipment parameters are adjusted in time to resume production.

Benefits of technology

Ensures the continuity and stability of production, saves time for comprehensive inspections, reduces downtime losses, and improves production efficiency and system reliability.

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Abstract

The invention relates to the field of glass production lines, and particularly discloses an intelligent control system for a glass production line, which comprises a control module, a switch, an operation module, a control electric box and a process node module, the control module comprises a PLC (Programmable Logic Controller) 1, a PLC 2 and a PLC 3; the operation module comprises an operation screen table 1, an operation screen table 2 and an operation screen table 3; the process node module comprises an inner sheet feeding and conveying unit, an outer sheet feeding and conveying unit, a glass cleaning unit, a gluing chamber sheet combining unit, a glass flat pressing unit and a sheet unloading overturning table.
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Description

Technical Field

[0001] The present invention relates to the field of glass production lines, and more particularly to an intelligent control system for glass production lines. Background Art

[0002] At present, when the control system of the glass production line encounters a fault, due to the lack of an effective response mechanism, it can only shut down for a long time to conduct a comprehensive inspection of the line and check the communication address errors. This process not only consumes a lot of time, causing the production line to be shut down for a long time, directly causing huge downtime losses, but also seriously delays the production progress, making it impossible for the company to complete the production task on time, affecting production efficiency. At the same time, the fault tolerance of the traditional control system is poor. When facing a fault in the glass production line, it cannot be flexibly adjusted and it is difficult to quickly resume production. These defects restrict the development of glass production enterprises, and a new intelligent control system is urgently needed to solve the above problems.

[0003] In order to solve the above problems, a technical solution is now provided. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an intelligent control system for a glass production line, which forms a redundant control architecture through multiple PLC controllers, effectively copes with controller failures, ensures the continuity and stability of production, adopts a master-slave exchange channel, and can produce continuously without stopping, saving time for comprehensive inspections, and also reducing downtime losses. By real-time monitoring of the operating status of a glass washing machine and a glass press, a fault monitoring model is established to calculate abnormal evaluation values, and when a fault occurs, the parameters of the equipment are adjusted in a timely and flexible manner, thereby quickly resuming production to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent control system for a glass production line can keep the machine running when a communication network fails, and comprises a control module, a switch, an operation module, a control electric box and a process node module, wherein the control module comprises a PLC controller 1, a PLC controller 2 and a PLC control 3; the operation module comprises an operation screen 1, an operation screen 2 and an operation screen 3; the process node module comprises an inner sheet conveying device for loading and unloading, an outer sheet conveying device for loading and unloading, a glass cleaning machine, a laminating chamber laminating machine, a glass press and a sheet unloading turning table.

[0007] As a further solution of the present invention, the left end of the switch is connected to the PLC controller 1, PLC control 2, and PLC controller 3 respectively, and the PLC controller 1, PLC control 2 and PLC controller 3 are responsible for controlling the production line equipment. The right end of the switch is connected to the left end of the operation screen platform 2 to ensure smooth transmission of information. The upper end of the operation screen platform 2 is connected to the operation screen platform 1, and the lower end of the operation screen platform 2 is connected to the operation screen platform 3. The right end of the operation screen platform 2 is connected to the left end of the control electric box, and the right end of the control electric box is connected to the upper film conveying inner film, the upper film conveying outer film, the glass washing machine, the gluing chamber film, the glass flat press and the unloading film turning table are respectively connected, the upper film conveying outer film is connected to the upper film conveying inner film, the glass washing machine is connected to the upper film conveying outer film, the gluing chamber film is connected to the glass washing machine, the glass washing machine is connected to the gluing chamber film, and the unloading film turning table is connected to the glass washing machine.

[0008] As a further solution of the present invention, the control module is responsible for controlling and monitoring the production line equipment, including the following specific contents:

[0009] The control module includes PLC controller 1, PLC controller 2 and PLC controller 3, which are connected to the operation panel through a switch to realize real-time monitoring, data collection and transmission of control commands for various equipment on the production line. The PLC controller 1, PLC controller 2 and PLC controller 3 form a redundant control architecture, that is, when any controller fails or its performance deteriorates, the control module can identify and automatically switch to another controller. The controller combines the variable frequency speed regulation technology with the secondary circuit switch quantity assembly to ensure that the equipment operation can be dynamically adjusted according to the real-time data during the production process to maintain efficient and stable production. The PLC controller 1, PLC controller 2 and PLC controller 3 all contain dedicated real-time monitoring programs and self-diagnosis programs. The diagnostic program can detect the operating status of the controller, the rationality of the parameter configuration, the current load status and other information. Once an abnormality is found, the system will trigger an alarm and automatically start the redundant control mechanism when necessary.

[0010] As a further solution of the present invention, the operation module is used for remote monitoring and operation, and provides real-time feedback on production status, including the following specific contents:

[0011] The three operating screens of the operating module serve as the user interface of the system and have data collection, display and feedback functions. The operator can monitor the status of each controller, the operation of the glass production line, and the working parameters of glass cleaning, gluing, pressing and conveying equipment in real time through the operating screens, and perform remote control and parameter adjustment according to actual needs; in order to achieve high fault tolerance and continuity of the system, the operating module adopts a redundant communication design. Through the setting of the main and standby switching channels, it allows automatic switching to the standby channel when the main channel fails or the data transmission delay exceeds the standard, thereby ensuring the continuous and stable data transmission. The operating screen 1 and the operating screen 2 are connected to form the main channel, and the operating screen 3 and the operating screen 2 are connected to form the standby channel. No matter which channel fails, it can be switched to another channel for operation, which greatly improves the production efficiency.

[0012] As a further solution of the present invention, the control box is responsible for providing a stable power supply, providing data and power support for the automatic control of the system, including the following specific contents:

[0013] The control electrical box houses electrical components and circuit protection devices, including circuit breakers, relays, contactors and control buttons, providing a stable power supply for the glass production line while protecting the circuit from overload or short circuit, and providing data and power support for the automated control of the system. In addition, the electrical box also includes temperature sensors and humidity adjustment devices to ensure that its internal environment adapts to the optimal working conditions of the electronic components, prolonging the service life of the equipment and improving the reliability of the system.

[0014] As a further solution of the present invention, the process node module is the entire process of glass production, including the following specific contents:

[0015] The upper sheet conveying inner sheet and the upper sheet conveying outer sheet are the initial links of the glass production line, which are responsible for loading the original glass sheets from the conveyor belt to the glass production line. The upper sheet conveying inner sheet passes through the conveyor belt and the pressure regulator to ensure the smooth transmission of the glass sheets during transportation, avoid vibration, sliding and deviation, so that the glass sheets can be accurately transmitted to the designated position. The upper sheet conveying outer sheet further ensures the positioning accuracy of the glass sheets before entering the next process, so as to avoid the problem of misalignment or collision during the subsequent cleaning, gluing and pressing processes. The upper sheet conveying inner sheet and the upper sheet conveying outer sheet are equipped with sensors and sensors for real-time monitoring of the speed, position and tilt angle of the glass sheets, and feedback to the control system to achieve precise transmission control;

[0016] Then, the glass piece enters the glass washing machine, which removes dust, oil and impurities on the glass surface through water spraying, brushing and drying. The water spraying adopts a high-pressure water spray nozzle to ensure that the water flow covers the entire glass surface and effectively removes stubborn stains. The brushing adopts bristles with moderate hardness to remove tiny particles without scratching the glass surface. The drying is to quickly dry the cleaned glass piece through a hot air drying system to ensure that no trace of water is left, so as to provide a clean and dry surface for the next gluing process.

[0017] The bonding chamber aligns two or more pieces of glass and applies adhesive between them to form a composite glass structure. This step requires precise control of the alignment accuracy and bonding thickness of the glass sheets. Therefore, the bonding chamber uses laser sensors and positioning devices to ensure that each piece of glass can maintain a consistent spacing and position to prevent misalignment between glass sheets. At the same time, the bonding chamber uses a micro pump and a fine nozzle to apply adhesive between the glass sheets at a uniform flow rate to ensure that the thickness of the glue layer is consistent and no bubbles are generated.

[0018] The glass sheets after bonding are transferred to the glass press, which is used to apply uniform pressure to the bonded glass, so that the adhesive spreads evenly between the two glass sheets to achieve a firm adhesion effect. In order to prevent slippage during the bonding process, the working surface of the glass press is provided with an anti-slip device to ensure that the glass sheets remain in a fixed position during bonding;

[0019] The unloading and turning platform is used to remove the processed glass sheets from the production line and turn them over. The unloading and turning platform is equipped with a clamp and a support arm to ensure the stability of the glass sheets during the turning process and prevent them from tipping over or sliding.

[0020] As a further solution of the present invention, the control system monitors the operating status of the glass washing machine in real time, including the following specific contents:

[0021] By installing a temperature sensor and a pressure sensor on the glass washing machine, the water temperature data of the glass washing machine, the spray pressure of the glass washing machine when spraying water, and the air drying temperature data of the hot air drying system of the glass washing machine are obtained in real time, a glass washing machine fault monitoring model is established, and the abnormal evaluation value of the glass washing machine is calculated. The formula of the glass washing machine fault monitoring model is:

[0022]

[0023] Where: E is the abnormal evaluation value of the glass washing machine, T wis the water temperature value of the glass washing machine measured by the temperature sensor, T1 is the optimal water temperature value set for the glass washing machine when it is in normal operation, P is the injection pressure value of the glass washing machine when spraying water measured by the pressure sensor, and P opt The optimal spray pressure value when spraying water is set for the glass washing machine, T d is the air-drying temperature value of the hot air drying system measured by the temperature sensor, T2 is the optimal temperature value of the hot air drying system during normal working hours, α is the influence of the pressure value on the abnormal evaluation value of the glass washing machine, β is the influence of the air-drying temperature value on the abnormal evaluation value of the glass washing machine, if the abnormal evaluation value E is greater than the preset safety threshold E1, it means that the glass washing machine is currently in a fault state, and the control system adjusts the water temperature, spray pressure and air-drying temperature of the glass washing machine according to the abnormal evaluation value to ensure continuous production.

[0024] As a further solution of the present invention, the control system monitors the operating status of the glass flat press in real time, including the following specific contents:

[0025] By installing a temperature sensor and a pressure sensor on the glass press, the temperature data of the glass press during pressing, the pressure data of the glass press during pressing, and the time data of the glass press maintaining the pressure during pressing are obtained in real time, a glass press fault monitoring model is established, and the abnormal evaluation value of the glass press is calculated. The formula of the glass press fault monitoring model is:

[0026]

[0027] Where: F is the abnormal evaluation value of the glass flat press, T is the temperature value of the glass flat press during the pressing process measured by the temperature sensor, and T opt is the optimal pressing temperature value of the glass press in normal operation, P1 is the pressure value of the glass press during the pressing process measured by the pressure sensor, P0 is the optimal pressing pressure value of the glass press in normal operation, γ is the influence weight of the pressing pressure value on the abnormal evaluation value of the glass press, t is the time the glass press maintains the pressure during the pressing process, t opt is the optimal pressure holding time of the glass press, δ is the influence weight of the pressure holding time on the abnormal evaluation value of the glass press, if the abnormal evaluation value F is greater than the preset safety threshold F1, it means that the glass press is currently in a fault state, and the control system adjusts the temperature, pressure and pressure holding time of the glass press during the pressing process according to the abnormal evaluation value.

[0028] The technical effects and advantages of the intelligent control system for a glass production line of the present invention are as follows:

[0029] The redundant control architecture is adopted, and a reliable control system is formed by using PLC controller 1, PLC controller 2 and PLC controller 3. Combined with real-time monitoring and self-diagnosis procedures, it can effectively deal with controller failures and ensure the continuity and stability of production. The redundant communication design of the operation module and the main and standby exchange channels ensure the continuous and stable data transmission. The operator can monitor and operate remotely in real time, which improves production efficiency. The control box provides the system with a stable power supply and a good internal environment to extend the life of the equipment. The process node module realizes precise control of the entire process, from the transmission, cleaning, gluing to pressing and unloading of glass sheets, and each link has precise control measures. In addition, the control system can monitor the operating status of the glass washing machine and the glass flat press in real time, calculate the abnormal evaluation value by establishing a fault monitoring model, and adjust the equipment parameters in time to ensure continuous production, effectively improving the overall performance, production efficiency, product quality and system reliability of the glass production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic diagram of the structure of an intelligent control system for a glass production line according to the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0032] Example 1

[0033] See also Figure 1As shown in the structural schematic diagram, an embodiment of the present invention provides an intelligent control system for a glass production line, including a control module, a switch, an operation module, a control electrical box and a process node module, wherein the control module includes a PLC controller 1, a PLC controller 2 and a PLC control 3; the operation module includes an operation screen table 1, an operation screen table 2 and an operation screen table 3; the process node module includes an inner sheet conveying upper sheet, an outer sheet conveying upper sheet, a glass cleaning machine, a laminating chamber laminating machine, a glass flat press and a sheet unloading turning table; the left end of the switch is connected to the PLC controller 1, the PLC control 2 and the PLC controller 3 respectively, and the PLC controller 1, the PLC control 2 and the PLC controller 3 are responsible for controlling the production line equipment, and the right ... The end is connected with the left end of the operation screen platform 2 to ensure smooth transmission of information, the upper end of the operation screen platform 2 is connected with the operation screen platform 1, the lower end of the operation screen platform 2 is connected with the operation screen platform 3, the right end of the operation screen platform 2 is connected with the left end of the control electric box, the right end of the control electric box is respectively connected with the upper film conveying inner film, the upper film conveying outer film, the glass cleaning machine, the gluing chamber film, the glass press and the unloading film turning table, the upper film conveying outer film is connected with the upper film conveying inner film, the glass cleaning machine is connected with the upper film conveying outer film, the gluing chamber film is connected with the glass cleaning machine, the glass cleaning machine is connected with the gluing chamber film, and the unloading film turning table is connected with the glass cleaning machine.

[0034] As a further solution of the present invention, the control module is responsible for controlling and monitoring the production line equipment, including the following specific contents:

[0035] The control module includes PLC controller 1, PLC controller 2 and PLC controller 3, which are connected to the operation panel through a switch to realize real-time monitoring, data collection and transmission of control commands for various equipment on the production line. The PLC controller 1, PLC controller 2 and PLC controller 3 form a redundant control architecture, that is, when any controller fails or its performance deteriorates, the control module can identify and automatically switch to another controller. The controller combines the variable frequency speed regulation technology with the secondary circuit switch quantity assembly to ensure that the equipment operation can be dynamically adjusted according to the real-time data during the production process to maintain efficient and stable production. The PLC controller 1, PLC controller 2 and PLC controller 3 all contain dedicated real-time monitoring programs and self-diagnosis programs. The diagnostic program can detect the operating status of the controller, the rationality of the parameter configuration, the current load status and other information. Once an abnormality is found, the system will trigger an alarm and automatically start the redundant control mechanism when necessary.

[0036] As a further solution of the present invention, the operation module is used for remote monitoring and operation, and provides real-time feedback on production status, including the following specific contents:

[0037] The three operating screens of the operating module serve as the user interface of the system and have data collection, display and feedback functions. The operator can monitor the status of each controller, the operation of the glass production line, and the working parameters of glass cleaning, gluing, pressing and conveying equipment in real time through the operating screens, and perform remote control and parameter adjustment according to actual needs; in order to achieve high fault tolerance and continuity of the system, the operating module adopts a redundant communication design. Through the setting of the main and standby switching channels, it allows automatic switching to the standby channel when the main channel fails or the data transmission delay exceeds the standard, thereby ensuring the continuous and stable data transmission. The operating screen 1 and the operating screen 2 are connected to form the main channel, and the operating screen 3 and the operating screen 2 are connected to form the standby channel. No matter which channel fails, it can be switched to another channel for operation, which greatly improves the production efficiency.

[0038] As a further solution of the present invention, the control box is responsible for providing a stable power supply, providing data and power support for the automatic control of the system, including the following specific contents:

[0039] The control electrical box houses electrical components and circuit protection devices, including circuit breakers, relays, contactors and control buttons, providing a stable power supply for the glass production line while protecting the circuit from overload or short circuit, and providing data and power support for the automated control of the system. In addition, the electrical box also includes temperature sensors and humidity adjustment devices to ensure that its internal environment adapts to the optimal working conditions of the electronic components, prolonging the service life of the equipment and improving the reliability of the system.

[0040] As a further solution of the present invention, the process node module is the entire process of glass production, including the following specific contents:

[0041] The upper sheet conveying inner sheet and the upper sheet conveying outer sheet are the initial links of the glass production line, which are responsible for loading the original glass sheets from the conveyor belt to the glass production line. The upper sheet conveying inner sheet passes through the conveyor belt and the pressure regulator to ensure the smooth transmission of the glass sheets during transportation, avoid vibration, sliding and deviation, so that the glass sheets can be accurately transmitted to the designated position. The upper sheet conveying outer sheet further ensures the positioning accuracy of the glass sheets before entering the next process, so as to avoid the problem of misalignment or collision during the subsequent cleaning, gluing and pressing processes. The upper sheet conveying inner sheet and the upper sheet conveying outer sheet are equipped with sensors and sensors for real-time monitoring of the speed, position and tilt angle of the glass sheets, and feedback to the control system to achieve precise transmission control;

[0042] Then, the glass piece enters the glass washing machine, which removes dust, oil and impurities on the glass surface through water spraying, brushing and drying. The water spraying adopts a high-pressure water spray nozzle to ensure that the water flow covers the entire glass surface and effectively removes stubborn stains. The brushing adopts bristles with moderate hardness to remove tiny particles without scratching the glass surface. The drying is to quickly dry the cleaned glass piece through a hot air drying system to ensure that no trace of water is left, so as to provide a clean and dry surface for the next gluing process.

[0043] The bonding chamber aligns two or more pieces of glass and applies adhesive between them to form a composite glass structure. This step requires precise control of the alignment accuracy and bonding thickness of the glass sheets. Therefore, the bonding chamber uses laser sensors and positioning devices to ensure that each piece of glass can maintain a consistent spacing and position to prevent misalignment between glass sheets. At the same time, the bonding chamber uses a micro pump and a fine nozzle to apply adhesive between the glass sheets at a uniform flow rate to ensure that the thickness of the glue layer is consistent and no bubbles are generated.

[0044] The glass sheets after bonding are transferred to the glass press, which is used to apply uniform pressure to the bonded glass, so that the adhesive spreads evenly between the two glass sheets to achieve a firm adhesion effect. In order to prevent slippage during the bonding process, the working surface of the glass press is provided with an anti-slip device to ensure that the glass sheets remain in a fixed position during bonding;

[0045] The unloading and turning platform is used to remove the processed glass sheets from the production line and turn them over. The unloading and turning platform is equipped with a clamp and a support arm to ensure the stability of the glass sheets during the turning process and prevent them from tipping over or sliding.

[0046] As a further solution of the present invention, the control system monitors the operating status of the glass washing machine in real time, including the following specific contents:

[0047] By installing a temperature sensor and a pressure sensor on the glass washing machine, the water temperature data of the glass washing machine, the spray pressure of the glass washing machine when spraying water, and the air drying temperature data of the hot air drying system of the glass washing machine are obtained in real time, a glass washing machine fault monitoring model is established, and the abnormal evaluation value of the glass washing machine is calculated. The formula of the glass washing machine fault monitoring model is:

[0048]

[0049] Where: E is the abnormal evaluation value of the glass washing machine, T wis the water temperature value of the glass washing machine measured by the temperature sensor, T1 is the optimal water temperature value set for the glass washing machine when it is in normal operation, P is the injection pressure value of the glass washing machine when spraying water measured by the pressure sensor, and P opt The optimal spray pressure value when spraying water is set for the glass washing machine, T d is the air-drying temperature value of the hot air drying system measured by the temperature sensor, T2 is the optimal temperature value of the hot air drying system during normal working hours, α is the influence of the pressure value on the abnormal evaluation value of the glass washing machine, β is the influence of the air-drying temperature value on the abnormal evaluation value of the glass washing machine, if the abnormal evaluation value E is greater than the preset safety threshold E1, it means that the glass washing machine is currently in a fault state, and the control system adjusts the water temperature, spray pressure and air-drying temperature of the glass washing machine according to the abnormal evaluation value to ensure continuous production.

[0050] As a further solution of the present invention, the control system monitors the operating status of the glass flat press in real time, including the following specific contents:

[0051] By installing a temperature sensor and a pressure sensor on the glass press, the temperature data of the glass press during pressing, the pressure data of the glass press during pressing, and the time data of the glass press maintaining the pressure during pressing are obtained in real time, a glass press fault monitoring model is established, and the abnormal evaluation value of the glass press is calculated. The formula of the glass press fault monitoring model is:

[0052]

[0053] Where: F is the abnormal evaluation value of the glass flat press, T is the temperature value of the glass flat press during the pressing process measured by the temperature sensor, and T opt is the optimal pressing temperature value of the glass press in normal operation, P1 is the pressure value of the glass press during the pressing process measured by the pressure sensor, P0 is the optimal pressing pressure value of the glass press in normal operation, γ is the influence weight of the pressing pressure value on the abnormal evaluation value of the glass press, t is the time the glass press maintains the pressure during the pressing process, t opt is the optimal pressure holding time of the glass press, δ is the influence weight of the pressure holding time on the abnormal evaluation value of the glass press, if the abnormal evaluation value F is greater than the preset safety threshold F1, it means that the glass press is currently in a fault state, and the control system adjusts the temperature, pressure and pressure holding time of the glass press during the pressing process according to the abnormal evaluation value.

[0054] The intelligent control system for a glass production line of the present invention adopts a redundant control architecture, and uses PLC controller 1, PLC controller 2 and PLC controller 3 to form a reliable control system. Combined with real-time monitoring and self-diagnosis programs, it can effectively deal with controller failures and ensure the continuity and stability of production. The redundant communication design of the operation module and the main and standby exchange channels ensure the continuous and stable data transmission. The operator can monitor and operate remotely in real time, thereby improving production efficiency. The control box provides the system with a stable power supply and a good internal environment, extending the life of the equipment. The process node module realizes precise control of the entire process, from the transmission, cleaning, gluing of glass sheets to the pressing and unloading of sheets, and each link has precise control measures. In addition, the control system can monitor the operating status of the glass washing machine and the glass flat press in real time, calculate the abnormal evaluation value by establishing a fault monitoring model, and adjust the equipment parameters in time to ensure continuous production, thereby effectively improving the overall performance, production efficiency, product quality and system reliability of the glass production line.

[0055] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0056] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent control system for a glass production line, which can keep the production line running even when a communication network fails, is characterized by: It includes a control module, a switch, an operation module, a control electrical box and a process node module. The control module includes a PLC controller 1, a PLC controller 2 and a PLC control 3; the operation module includes an operation screen 1, an operation screen 2 and an operation screen 3; the process node module includes an inner sheet conveying device for loading and unloading sheets, an outer sheet conveying device for loading and unloading sheets, a glass cleaning machine, a gluing room sheet combining machine, a glass flat press and a sheet unloading turning table.

2. The intelligent control system for a glass production line according to claim 1, characterized in that The left end of the switch is connected to the PLC controller 1, PLC control 2, and PLC controller 3 respectively. The PLC controller 1, PLC control 2, and PLC controller 3 are responsible for controlling the production line equipment. The right end of the switch is connected to the left end of the operation screen 2 to ensure smooth transmission of information; the upper end of the operation screen 2 is connected to the operation screen 1, the lower end of the operation screen 2 is connected to the operation screen 3, and the right end of the operation screen 2 is connected to the left end of the control electrical box.

3. The intelligent control system for a glass production line according to claim 1, characterized in that The right end of the control electrical box is respectively connected to the upper sheet conveying inner sheet, the upper sheet conveying outer sheet, the glass cleaning machine, the gluing chamber sheet closing machine, the glass flat press and the sheet unloading turning table. The upper sheet conveying outer sheet is connected to the upper sheet conveying inner sheet, the glass cleaning machine is connected to the upper sheet conveying outer sheet, the gluing chamber sheet closing machine is connected to the glass cleaning machine, the glass cleaning machine is connected to the gluing chamber sheet closing machine, and the sheet unloading turning table is connected to the glass cleaning machine.

4. The intelligent control system for a glass production line according to claim 1, characterized in that: The PLC controller 1, PLC controller 2 and PLC controller 3 form a redundant control architecture, that is, when any controller fails or its performance degrades, the control module can identify and automatically switch to another controller. The controller is combined with the secondary circuit switch quantity assembly through variable frequency speed regulation technology to ensure that the equipment operation can be dynamically adjusted according to real-time data during the production process.

5. The intelligent control system for a glass production line according to claim 1, characterized in that The operation module adopts a redundant communication design. Through the setting of the main and standby exchange channels, it allows automatic switching to the standby channel when the main channel fails or the data transmission delay exceeds the standard, thereby ensuring the continuous stability of data transmission. The operation screen 1 and the operation screen 2 are connected to form the main channel, and the operation screen 3 and the operation screen 2 are connected to form the standby channel. When any channel fails, it switches to the other channel for operation.

6. The intelligent control system for a glass production line according to claim 1, characterized in that The control electrical box houses electrical components and circuit protection devices, including circuit breakers, relays, contactors and control buttons, to provide a stable power supply for the glass production line, while protecting the circuit from overload or short circuit, and providing data and power support for the automated control of the system. In addition, the electrical box also includes a temperature sensor and a humidity regulator to ensure that its internal environment adapts to the optimal working conditions of the electronic components and prolongs the service life of the control electrical box.

7. The intelligent control system for a glass production line according to claim 1, characterized in that ,Through the temperature sensor and pressure sensor installed on the glass washing machine, the water temperature data of the glass washing machine, the spray pressure of the glass washing machine when spraying water, and the air drying temperature data of the hot air drying system of the glass washing machine are obtained in real time, and a glass washing machine fault monitoring model is established to calculate the abnormal evaluation value of the glass washing machine. The formula of the glass washing machine fault monitoring model is: Where: E is the abnormal evaluation value of the glass washing machine, T w is the water temperature value of the glass washing machine measured by the temperature sensor, T1 is the optimal water temperature value set for the glass washing machine when it is in normal operation, P is the injection pressure value of the glass washing machine when spraying water measured by the pressure sensor, and P opt The optimal spray pressure value when spraying water is set for the glass washing machine, T d is the air-drying temperature value of the hot air drying system measured by the temperature sensor, T2 is the optimal temperature value set for the hot air drying system during normal working hours, α is the influence of the pressure value on the abnormal evaluation value of the glass washing machine, and β is the influence of the air-drying temperature value on the abnormal evaluation value of the glass washing machine.

8. The intelligent control system for a glass production line according to claim 1, characterized in that , through the temperature sensor and pressure sensor installed on the glass press, the temperature data of the glass press during pressing, the pressure data of the glass press during pressing, and the time data of the glass press maintaining the pressure during pressing are obtained in real time, a glass press fault monitoring model is established, and the abnormal evaluation value of the glass press is calculated. The formula of the glass press fault monitoring model is: Where: F is the abnormal evaluation value of the glass flat press, T is the temperature value of the glass flat press during the pressing process measured by the temperature sensor, and T opt is the optimal pressing temperature value of the glass press in normal operation, P1 is the pressure value of the glass press during the pressing process measured by the pressure sensor, P0 is the optimal pressing pressure value of the glass press in normal operation, γ is the influence weight of the pressing pressure value on the abnormal evaluation value of the glass press, t is the time the glass press maintains the pressure during the pressing process, t opt is the optimal pressure holding time of the glass press, and δ is the influence weight of the pressure holding time on the abnormal evaluation value of the glass press.

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