Intelligent printing equipment

Abstract

The invention provides intelligent printing equipment, and the intelligent printing equipment comprises an equipment layer which comprises a printing equipment body and is used for realizing product printing; the data and control layer comprises a printing quality closed-loop control system, an electrical control system, a self-adaptive plate wiping control system, an intelligent sensing system, an intelligent operation and maintenance system and a state data storage system, and the data and control layer is used for collecting and analyzing equipment data and achieving intelligent control and adjustment of the intelligent printing equipment; and the operation layer comprises a man-machine interaction system and is used for performing data interaction with each system of the data and control layer so as to realize information display and man-machine interaction of each system. According to the technical scheme, the manual intervention frequency in the printing process can be reduced, the requirement for experience of operators is lowered, the intelligent and automatic level of existing printing equipment is improved, and high-quality, high-efficiency and safe production of the equipment is achieved.

Description

[0001] This application is a divisional application of Chinese patent application No. 202311257370.9, filed on September 26, 2023, entitled "Intelligent Printing Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of printing equipment technology, and more specifically, to an intelligent printing device. Background Technology

[0003] The production and operation of printing equipment involves multiple stages, including paper feeding, ink supply, printing, paper collection, and product quality inspection. These stages further involve numerous sub-stages, such as warehouse calibration, roller pressure adjustment, plate cleaning, water temperature control, and lubrication. Due to the high production speed, a problem in any stage can lead to a large number of defective products or even a production accident. Current printing equipment operation relies heavily on manual intervention. For example, plate cleaning requires manual adjustment, product replacement requires manual input of electrical control system parameters, and print quality inspection depends on manual inspection and a high level of technical experience. Furthermore, when malfunctions occur during production, it is difficult for staff to immediately stop the machine for repairs and maintenance, potentially leading to economic losses and safety hazards. Summary of the Invention

[0004] This application aims to solve or improve the aforementioned technical problems.

[0005] Therefore, the primary objective of this application is to provide an intelligent printing device.

[0006] To achieve the first objective of this application, the technical solution of the first aspect of this application provides an intelligent printing equipment, comprising: an equipment layer, including a printing equipment body for printing products; a data and control layer, including a printing quality closed-loop control system, an electrical control system, an adaptive plate erasing control system, an intelligent sensing system, an intelligent operation and maintenance system, and a status data storage system, wherein the data and control layer is used to collect and analyze equipment data to control and adjust the intelligent printing equipment; and an operation layer, including a human-machine interaction system for interacting with the various systems in the data and control layer to display information and facilitate human-machine interaction.

[0007] The intelligent printing equipment provided in this application includes an equipment layer, a data and control layer, and an operation layer. The equipment layer includes the printing equipment itself, used for printing products. The data and control layer includes a printing quality closed-loop control system, an electrical control system, an adaptive plate-wiping control system, an intelligent sensing system, an intelligent operation and maintenance system, and a status data storage system. The data and control layer is used to collect and analyze equipment status data to achieve intelligent control and adjustment of the printing equipment itself. The operation layer includes a human-machine interface system, used for data interaction with the data and control layer, enabling information display and human-machine interaction for each system. Through communication between the equipment layer, intelligent sensing system, status data storage system, intelligent operation and maintenance system, adaptive plate-wiping control system, printing quality closed-loop control system, and operation layer, data interaction, control, and information display are achieved, thereby reducing manual intervention, lowering the experience requirements for operators, improving the intelligence and automation level of existing printing equipment, and achieving high-quality, high-efficiency, and safe production.

[0008] In addition, the technical solution provided in this application may also have the following additional technical features:

[0009] In the above technical solution, the electrical control system, intelligent sensing system, and printing quality closed-loop control system communicate and adjust with the printing equipment body through relevant communication protocols.

[0010] In this technical solution, the intelligent sensing system, intelligent operation and maintenance system, adaptive plate-wiping control system, electrical control system, and printing quality closed-loop control system communicate and adjust with the printing equipment body through relevant communication protocols. It can be understood that the intelligent sensing system, intelligent operation and maintenance system, adaptive plate-wiping control system, electrical control system, and printing quality closed-loop control system interact directly or indirectly with the printing equipment body in real time via fieldbus. On the one hand, each system can analyze and summarize the online data collected from the printing equipment body; on the other hand, the intelligent sensing system, intelligent operation and maintenance system, adaptive plate-wiping control system, and printing quality closed-loop control system use algorithms to calculate the adjustment parameters of each actuator in real time and send them to the printing equipment body through the electrical control system, realizing the intelligent and automated operation of the printing equipment.

[0011] In the above technical solution, the printing equipment body includes a paper feeding section, a printing section, an ink carriage section, a paper delivery section, a temperature control system, a plate wiping mechanism, and an ink color remote control system. The paper feeding section, printing section, ink carriage section, and paper delivery section are connected in sequence. The temperature control system and the plate wiping mechanism are both connected to the printing section, and the ink color remote control system is connected to the ink carriage section.

[0012] In this technical solution, the printing equipment body includes a paper feeding section, a printing section, an ink carriage section, a paper delivery section, a temperature control system, a plate wiping mechanism, and an ink remote control system, which are connected sequentially. The temperature control system and the plate wiping mechanism are both connected to the printing section, and the ink remote control system is connected to the ink carriage section.

[0013] In the above technical solution, the intelligent sensing system is used to collect online status data of the printing equipment body through sensors to form an equipment status data pool, and is used to realize data interaction between the printing quality closed-loop control system, electrical control system, adaptive plate erasing control system, intelligent operation and maintenance system, status data storage system and human-machine interaction system.

[0014] In this technical solution, the intelligent sensing system is used to collect online status data of the printing equipment body through sensors, form an equipment status data pool, and realize data interaction between the printing quality closed-loop control system, electrical control system, adaptive plate erasing control system, intelligent operation and maintenance system, status data storage system and human-machine interaction system.

[0015] In the above technical solution, the status data storage system interacts with the intelligent sensing system through relevant communication protocols to store online data from the device sensors collected by the intelligent sensing system in real time, and summarizes the data to form a historical database of device status.

[0016] In this technical solution, the status data storage system interacts with the intelligent sensing system through relevant communication protocols to store online data from the device sensors collected by the intelligent sensing system in real time, and summarizes the data to form a historical database of device status.

[0017] In the above technical solution, the intelligent operation and maintenance system interacts with the intelligent sensing system, the status data storage system, the human-machine interaction system, and the electrical control system through relevant communication protocols. The intelligent operation and maintenance system is used to obtain online and offline data from the equipment sensors of the intelligent sensing system and the status data storage system, to perform real-time status monitoring and analysis of the intelligent printing equipment, to calculate fault prediction results and parameter adjustment data, to send the fault prediction results to the human-machine interaction system for information display through relevant communication protocols, and to send the relevant parameter adjustment data to the electrical control system for adjustment.

[0018] In this technical solution, the intelligent operation and maintenance system interacts with the intelligent sensing system, the status data storage system, the human-machine interaction system, and the electrical control system through relevant communication protocols. The intelligent operation and maintenance system acquires online and offline data from the equipment sensors of the intelligent sensing system and the status data storage system, performs real-time status monitoring and analysis of the intelligent printing equipment, calculates fault prediction results and parameter adjustment data, sends the fault prediction results to the human-machine interaction system for information display via relevant communication protocols, and sends the relevant parameter adjustment data to the electrical control system for adjustment.

[0019] In the above technical solution, the intelligent operation and maintenance system is also used to provide reminders based on the maintenance content set by the operator, and to summarize the equipment failure history and maintenance history to form operation and maintenance reports.

[0020] In this technical solution, the intelligent operation and maintenance system is also used to provide reminders based on the maintenance content set by the operators, and to summarize the equipment failure history and maintenance history to form operation and maintenance reports.

[0021] In the above technical solution, the intelligent operation and maintenance system is also used to send electrical control parameters to the electrical control system when the equipment changes printed products, based on the pre-set experience parameter formula, so as to realize the one-click distribution of experience parameters.

[0022] In this technical solution, the intelligent operation and maintenance system is also used to send electrical control parameters to the electrical control system when the equipment changes printed products, based on the pre-set experience parameter formula, so as to realize the one-click distribution of experience parameters.

[0023] In the above technical solution, the printing quality closed-loop control system interacts with the intelligent sensing system and the printing equipment body through relevant communication protocols to analyze equipment status data and printing product quality data. It uses algorithms to control and adjust key parameters affecting printing product quality in real time, thereby realizing closed-loop control of printing product quality.

[0024] In this technical solution, the printing quality closed-loop control system interacts with the intelligent sensing system and the printing equipment body through relevant communication protocols to analyze equipment status data and printing product quality data. It uses algorithms to control and adjust key parameters affecting printing product quality in real time, thereby achieving closed-loop control of printing product quality.

[0025] In the above technical solution, the adaptive wiping control system interacts with the electrical control system through relevant communication protocols. Based on the pressure data between the wiping roller and the printing plate cylinder, the system uses algorithms to calculate the corresponding motor adjustment control parameters in real time. The electrical control system then controls the corresponding motor to adjust according to the adjustment parameters, thereby achieving automatic adjustment of the wiping roller's movement.

[0026] In this technical solution, the adaptive wiping control system interacts with the electrical control system through relevant communication protocols. Based on the pressure data between the wiping roller and the printing plate cylinder, the system uses algorithms to calculate the corresponding motor adjustment control parameters in real time. The electrical control system then controls the corresponding motor to adjust according to the adjustment parameters, thereby achieving automatic adjustment of the wiping roller's movement.

[0027] In the above technical solution, the electrical control system directly interacts with the intelligent sensing system, the printing equipment body, the adaptive wiping control system, and the human-machine interaction system through relevant communication protocols, and indirectly interacts with the intelligent operation and maintenance system and the printing quality closed-loop control system through the intelligent sensing system. The electrical control system is used to control the relevant mechanisms of the printing equipment body to complete the specified actions based on the adjustment data obtained from the adaptive wiping control system, the intelligent operation and maintenance system, and the printing quality closed-loop control system.

[0028] In this technical solution, the electrical control system directly interacts with the intelligent sensing system, the printing equipment body, the adaptive wiping control system, and the human-machine interface system via relevant communication protocols. It also indirectly interacts with the intelligent operation and maintenance system and the printing quality closed-loop control system through the intelligent sensing system. The electrical control system is used to control relevant mechanisms of the printing equipment body to complete specified actions based on adjustment data obtained from the adaptive wiping control system, the intelligent operation and maintenance system, and the printing quality closed-loop control system.

[0029] In the above technical solution, the intelligent sensing system includes a roller pressure monitoring subsystem, a disc spring fault diagnosis subsystem, a lubrication online diagnosis subsystem, a vibration online diagnosis subsystem, a paper monitoring subsystem, a pneumatic monitoring subsystem, a hydraulic monitoring subsystem, and a temperature monitoring subsystem. The roller pressure monitoring subsystem measures the pressure between the impression cylinder and the printing plate cylinder, the pressure between the wiping cylinder and the printing plate cylinder, and the pressure of the color die cylinder. The disc spring fault diagnosis subsystem monitors the condition of the disc springs and predicts their lifespan. The lubrication online diagnosis subsystem monitors the thin oil lubrication of the printing section and the ink carriage. The vibration online diagnosis subsystem monitors the vibration of the printing cylinder bearings.

[0030] In this technical solution, the intelligent sensing system includes a roller pressure monitoring subsystem, a disc spring fault diagnosis subsystem, a lubrication online diagnosis subsystem, a vibration online diagnosis subsystem, a paper monitoring subsystem, a pneumatic monitoring subsystem, a hydraulic monitoring subsystem, and a temperature monitoring subsystem. The roller pressure monitoring subsystem measures the pressure between the impression cylinder and the printing plate cylinder, the pressure between the wiping cylinder and the printing plate cylinder, and the pressure of the color die cylinder. The disc spring fault diagnosis subsystem monitors the condition of the disc springs and predicts their lifespan. The lubrication online diagnosis subsystem monitors the thin oil lubrication of the printing section and the ink carriage. The vibration online diagnosis subsystem monitors the vibration of the printing cylinder bearings.

[0031] In the above technical solution, the printing quality closed-loop control system includes a printing quality inspection subsystem, a real-time ink color analysis subsystem, and a printing quality closed-loop control algorithm. The printing quality inspection subsystem includes: an online inspection system for real-time inspection of printed product quality and defect analysis; an offline inspection system for operators to perform offline sampling quality checks on printed products; a real-time ink color analysis subsystem for analyzing ink color differences between standard samples and the inspected products, calculating the ink color deviation; and a printing closed-loop control algorithm for calculating adjustment amounts of key parameters such as pressure, temperature, and ink volume based on product quality data from the printing quality inspection subsystem and ink color deviation information from the real-time ink color analysis subsystem, and transmitting these adjustment amounts to the electrical control system and the ink color remote control system via a communication method for adjustment.

[0032] In this technical solution, the printing quality closed-loop control system includes a printing quality inspection subsystem, a real-time ink color analysis subsystem, and a printing quality closed-loop control algorithm. The printing quality inspection subsystem includes an online inspection system and an offline inspection system. The online inspection system is used for real-time inspection of printed product quality and product defect analysis. The offline inspection system is used by operators to perform offline quality checks on sampled printed products. The real-time ink color analysis subsystem is used to analyze the ink color difference between standard samples and the inspected products, calculating the ink color deviation. The printing closed-loop control algorithm, based on the product quality data fed back by the printing quality inspection subsystem and the ink color deviation information fed back by the real-time ink color analysis subsystem, calculates the adjustment amounts of key parameters such as pressure, temperature, and ink volume through an adjustment algorithm, and transmits the relevant adjustment amounts to the electrical control system and the ink color remote control system via a certain communication method for adjustment.

[0033] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0034] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0035] Figure 1 This is a schematic block diagram of the structure of an intelligent printing device according to an embodiment of this application;

[0036] Figure 2 This is a schematic block diagram of the structure of an intelligent printing device according to an embodiment of this application;

[0037] Figure 3 This is a schematic block diagram of the structure of an intelligent sensing system according to an embodiment of this application;

[0038] Figure 4This is a schematic block diagram of the structure of a closed-loop control system for printing quality according to an embodiment of this application;

[0039] Figure 5 This is a partial structural schematic block diagram of an intelligent printing device according to an embodiment of this application;

[0040] Figure 6 This is a schematic block diagram of the structure of an intelligent sensing system according to an embodiment of this application;

[0041] Figure 7 This is a schematic block diagram of the structure of an intelligent operation and maintenance system according to an embodiment of this application;

[0042] Figure 8 This is a schematic block diagram of the structure of a closed-loop control system for printing quality according to an embodiment of this application.

[0043] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0044] 10: Intelligent printing equipment; 102: Equipment layer; 104: Data and control layer; 106: Operation layer; 110: Intelligent sensing system; 120: Status data storage system; 130: Intelligent operation and maintenance system; 140: Adaptive plate erasing control system; 150: Printing quality closed-loop control system; 160: Electrical control system; 170: Printing equipment body; 172: Paper feeding section; 174: Printing section; 176: Ink carriage section; 178: Paper delivery section; 192: Temperature control system; 194: Plate erasing. Mechanisms; 196: Ink color remote control system; 200: Human-machine interaction system; 202: Roller pressure monitoring subsystem; 204: Disc spring fault diagnosis subsystem; 206: Lubrication online diagnosis subsystem; 208: Vibration online diagnosis subsystem; 210: Paper monitoring subsystem; 212: Pneumatic monitoring subsystem; 214: Hydraulic monitoring subsystem; 216: Temperature monitoring subsystem; 218: Printing quality inspection subsystem; 220: Real-time ink color analysis subsystem; 222: Printing quality closed-loop control algorithm. Detailed Implementation

[0045] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0047] The following reference Figures 1 to 8 This application describes some embodiments of an intelligent printing apparatus.

[0048] like Figure 1 and Figure 2 As shown, an intelligent printing device 10 according to an embodiment of this application includes: a device layer 102, including a printing device body 170 for printing products; a data and control layer 104, including a printing quality closed-loop control system 150, an electrical control system 160, an adaptive plate erasing control system 140, an intelligent sensing system 110, an intelligent operation and maintenance system 130, and a status data storage system 120, wherein the data and control layer 104 is used to collect and analyze device data to realize intelligent control and adjustment of the intelligent printing device 10; and an operation layer 106, including a human-computer interaction system 200, for data interaction with each system in the data and control layer 104 to realize information display and human-computer interaction of each system.

[0049] The intelligent printing equipment 10 provided in this embodiment includes an equipment layer 102, a data and control layer 104, and an operation layer 106. The equipment layer 102 includes a printing equipment body 170 for printing products. The data and control layer 104 includes a printing quality closed-loop control system, an electrical control system 160, an adaptive plate erasing control system 140, an intelligent sensing system 110, an intelligent operation and maintenance system 130, and a status data storage system 120. The data and control layer 104 is used to collect and analyze equipment status data to achieve intelligent control and adjustment of the printing equipment body 170. The operation layer 106 includes a human-machine interaction system 200, which interacts with the data and control layer 104 to display information from each system and facilitate human-machine interaction. Communication is achieved between the equipment layer 102, the intelligent sensing system 110, the status data storage system 120, the intelligent operation and maintenance system 130, the adaptive plate erasing control system 140, the printing quality closed-loop control system 150, and the operation layer 106 to realize data interaction, control, and information display. This reduces manual intervention, lowers the experience requirements for operators, improves the intelligence and automation level of existing printing equipment, and achieves high-quality, high-efficiency, and safe production.

[0050] Specifically, the intelligent sensing system 110 is used to collect online status data of the printing equipment body 170 through sensors, forming an equipment status data pool, and to realize data interaction between the printing quality closed-loop control system 150, the electrical control system 160, the adaptive plate erasing control system 140, the intelligent operation and maintenance system 130, the status data storage system 120, and the human-machine interaction system 200. The status data storage system 120 interacts with the intelligent sensing system 110 through relevant communication protocols, storing in real time the online data from the equipment sensors collected by the intelligent sensing system 110, and summarizing the data to form a historical database of equipment status. The intelligent operation and maintenance system 130 obtains online and offline data from the equipment sensors of the intelligent sensing system 110 and the status data storage system 120, performs real-time status monitoring and analysis of the intelligent printing equipment 10, calculates fault prediction results and parameter adjustment data, sends the fault prediction results to the human-machine interaction system 200 for information display through relevant communication protocols, and sends the relevant parameter adjustment data to the electrical control system 160 for adjustment. The printing quality closed-loop control system 150 interacts with the intelligent sensing system 110 and the printing equipment body 170 via relevant communication protocols to analyze equipment status data and printed product quality data. It uses algorithms to control and adjust key parameters affecting printed product quality in real time, achieving closed-loop control of printed product quality. The adaptive wiping control system 140 interacts with the electrical control system 160 via relevant communication protocols to calculate corresponding motor adjustment control parameters in real time based on the pressure data between the wiping roller and the printing plate cylinder. The electrical control system 160 then controls the corresponding motor to adjust according to these parameters, achieving automatic adjustment of the wiping roller's movement.

[0051] like Figure 7 As shown, specifically, the intelligent operation and maintenance system 130 mainly realizes the following functions: First, based on the equipment status data obtained by the intelligent sensing system 110, it uses various methods such as data mining, analysis, and modeling to analyze and judge the equipment status and faults, and provides fault or early warning prompts. Second, it realizes maintenance-related functions for printing equipment maintenance needs, including equipment repair and modification records, equipment fault statistical analysis, spare parts replacement cycle prompts, equipment maintenance reports / charts, etc. Third, it has a self-setting function for electrical control parameters, that is, it realizes the one-click setting function of empirical parameters when the equipment is changing products, which reduces the time for operators to adjust parameters when the equipment is changing products, etc. Fourth, it has an automatic parameter adjustment function, that is, during the operation of the equipment, it uses algorithms to automatically calculate key status parameters such as the pressure of the wiping roller and the pressure of the impression cylinder, and sends the calculated parameters to the electrical control system 160 to realize the automatic adjustment function of the wiping roller, impression cylinder and other mechanisms.

[0052] In the above embodiments, the intelligent sensing system 110, intelligent operation and maintenance system 130, adaptive plate-wiping control system 140, electrical control system 160, and printing quality closed-loop control system 150 communicate and adjust with the printing equipment body 170 via relevant communication protocols. It can be understood that the intelligent sensing system 110, intelligent operation and maintenance system 130, adaptive plate-wiping control system 140, electrical control system 160, and printing quality closed-loop control system 150 interact directly or indirectly with the printing equipment body 170 in real time via fieldbus. On the one hand, each system can analyze, summarize, and display the online data collected from the printing equipment body 170. On the other hand, the intelligent sensing system 110, intelligent operation and maintenance system 130, adaptive plate-wiping control system 140, and printing quality closed-loop control system 150 use algorithms to calculate the adjustment parameters of each actuator in real time and send them to the printing equipment body 170 through the electrical control system 160, thereby realizing the intelligent and automated operation of the printing equipment.

[0053] Furthermore, the printing equipment body 170 includes a paper feeding unit 172, a printing unit 174, an ink carriage unit 176, a paper delivery unit 178, a temperature control system 192, a plate wiping mechanism 194, and an ink color remote control system 196. The paper feeding unit 172, the printing unit 174, the ink carriage unit 176, and the paper delivery unit 178 are connected in sequence. The temperature control system 192 and the plate wiping mechanism 194 are both connected to the printing unit 174, and the ink color remote control system 196 is connected to the ink carriage unit 176.

[0054] In some embodiments, the intelligent operation and maintenance system 130 is used to provide reminders based on the maintenance content set by the operator, and to summarize the equipment fault history and maintenance history to generate an operation and maintenance report. The intelligent operation and maintenance system 130 is also used to send electrical control parameters to the electrical control system 160 when the equipment changes printed products, based on pre-set experience parameter formulas, to realize one-click distribution of experience parameters.

[0055] In the above embodiments, the electrical control system 160 directly interacts with the intelligent sensing system 110, the printing equipment body 170, the adaptive plate-wiping control system 140, and the human-machine interaction system 200 via relevant communication protocols, and indirectly interacts with the intelligent operation and maintenance system 130 and the printing quality closed-loop control system 150 via the intelligent sensing system 110. The electrical control system 160 is used to control relevant mechanisms of the printing equipment body 170 to complete specified actions based on adjustment data obtained from the adaptive plate-wiping control system 140, the intelligent operation and maintenance system 130, and the printing quality closed-loop control system 150.

[0056] like Figure 3 and Figure 6As shown, in some embodiments, the intelligent sensing system 110 includes a roller pressure monitoring subsystem 202, a disc spring fault diagnosis subsystem 204, a lubrication online diagnosis subsystem 206, a vibration online diagnosis subsystem 208, a paper monitoring subsystem 210, a pneumatic monitoring subsystem 212, a hydraulic monitoring subsystem 214, and a temperature monitoring subsystem 216. The roller pressure monitoring subsystem 202 measures the pressure between the impression cylinder and the printing plate roller, the pressure between the wiping cylinder and the printing plate roller, and the pressure of the color die cylinder. The disc spring fault diagnosis subsystem 204 monitors the condition of the disc springs and predicts their lifespan. The lubrication online diagnosis subsystem 206 monitors the thin oil lubrication of the printing section 174 and the ink carriage section 176. The vibration online diagnosis subsystem 208 monitors the vibration of each roller and the vibration of each color die bearing.

[0057] like Figure 4 and Figure 8 As shown, in the above embodiment, the printing quality closed-loop control system 150 includes a printing quality inspection subsystem 218, a real-time ink color analysis subsystem 220, and a printing quality closed-loop control algorithm 222. The printing quality inspection subsystem 218 includes an online inspection system and an offline inspection system. The online inspection system is used for real-time inspection of printed product quality and product defect analysis. The offline inspection system is used by the operator to perform offline sampling quality checks on printed products. The real-time ink color analysis subsystem 220 is used to analyze the ink color difference between a standard sample and the inspected product, calculating the ink color deviation. The printing quality closed-loop control algorithm 222 is used to calculate the adjustment amounts of key parameters such as pressure, temperature, and ink volume based on the product quality data fed back by the printing quality inspection subsystem 218 and the ink color deviation information fed back by the real-time ink color analysis subsystem 220, and sends the relevant adjustment amounts to the electrical control system 160 and the ink color remote control system 196 for adjustment via a certain communication method.

[0058] like Figures 1 to 8 As shown, according to a specific embodiment of the intelligent printing equipment 10 provided in this application, the intelligent system of the printing equipment specifically includes the following subsystems, devices, and equipment: an electrical control system 160, an intelligent sensing system 110, a status data storage system 120, a printing quality inspection system, a printing quality closed-loop control system 150, an intelligent operation and maintenance system 130, an adaptive plate erasing control system 140, a human-machine interaction system 200, and the printing equipment body 170. Each of the above subsystems, devices, and equipment must operate independently to complete its predetermined actions, and also communicate with other systems to achieve data interaction, control, and information display.

[0059] The intelligent printing system consists of three layers: equipment layer 102, data and control layer 104, and operation layer 106.

[0060] The equipment layer 102 includes hardware such as the printing equipment body 170, sensors, and actuators, used to realize the printing function and perform operations such as parameter adjustment. The systems in the data and control layer interact with the printing equipment body 170 in real time via communication methods such as fieldbus. On the one hand, they extract the online status data of the printing equipment body 170 in real time, analyze and summarize the data, and display it. On the other hand, they use algorithms to calculate the real-time adjustment parameters of each actuator in the printing equipment body 170 and send them to each actuator in the equipment layer 102 through the electrical control system 160, thereby realizing the intelligent and automated operation of the printing equipment.

[0061] The data and control layers include a printing quality closed-loop control system 150, an electrical control system 160, an intelligent operation and maintenance system 130, a status data storage system 120, an intelligent sensing system 110, and an adaptive plate erasing control system 140. These layers are primarily responsible for real-time monitoring of the entire machine's status, automatic parameter adjustment, equipment health management, and equipment operation and maintenance management. The intelligent sensing system 110 collects data from various sensors on the printing equipment and aggregates all real-time status data into a data pool. Algorithms are then used to perform real-time status analysis and fault diagnosis on key components such as rollers and bearings. Furthermore, the intelligent operation and maintenance system 130 can acquire sensor data from the data pool via relevant communication methods. It uses algorithms such as fault prediction models to monitor and analyze the real-time status of various parts of the printing equipment. The intelligent operation and maintenance system 130 then sends the calculated fault prediction results and control parameters such as roller printing pressure adjustment to the electrical control system 160, which issues various commands and controls the corresponding mechanisms to complete the specified actions. The status data storage system 120 stores all data from the equipment status data pool to the equipment status storage server in real time. The accumulated sensor data can be used as a historical database for analysis by other intelligent subsystems. The printing quality closed-loop system uses algorithms such as signal image processing and deep learning models to perform quality assessment and defect analysis on the extracted product images, and analyzes the causes of defects. Then, based on the corresponding defect causes, it calculates the adjustment values ​​of relevant mechanisms such as roller printing pressure and ink supply, and sends the adjustment values ​​to the electrical control system 160. The electrical control system 160 issues corresponding commands, and the relevant mechanisms complete the specified actions, thereby realizing closed-loop control of printing quality. The adaptive wiping control system 140 obtains online pressure data between the wiping roller and the printing plate cylinder through the intelligent sensing system 110. It uses an intelligent adjustment algorithm to calculate the corresponding motor adjustment value based on the pressure setpoint and real-time value. Then, the electrical control system 160 controls the corresponding motor to adjust in real time according to the adjustment amount, thereby realizing automatic adjustment of the wiping roller.

[0062] The operation layer 106 mainly consists of the human-machine interaction system 200, which interacts with the data and control layer through relevant communication protocols. In actual production, operators can use the system interface at the intelligent sample viewing station to achieve visualized and intelligent human-machine interaction operations such as querying the status of the entire machine (all software and hardware systems), monitoring production data, digitally managing products, and receiving fault alarms.

[0063] Electrical Control System 160: Primarily responsible for controlling and executing the actions of various machine mechanisms, it consists of a main control PLC, network, adjustment system, motion control system, and safety PLC. In actual production, operators configure and adjust the system parameters on the host computer of Electrical Control System 160. Then, the main control PLC communicates with the motion control system and adjustment system through relevant communication networks, issuing electrical control parameters to control each electromechanical structure and complete the specified actions.

[0064] Temperature control system 192: By automatically controlling the temperature of components such as the printing plate cylinder, ink collection cylinder, ink mold cylinder, ink fountain roller, and wiping solution, it stabilizes the cylinder printing size, ink transfer performance, and wiping effect, thereby ensuring printing quality. Each cylinder's temperature control system 192 is an independently controlled closed-loop temperature control system 192. The closed-loop pipeline uses a safety thermostat to automatically control the heater and an electric three-way proportional valve to dynamically control the loop temperature.

[0065] like Figure 4 As shown, the intelligent sensing system 110 monitors various data types such as vibration, pressure, lubrication, and temperature in real time through sensors on the printing equipment body 170, including rollers, disc springs, lubrication systems, and bearings. It collects various online status data of the equipment through multiple communication methods such as fieldbus, and aggregates all real-time status data into an equipment status data pool. Then, it uses big data modeling and other methods to predict faults in key parameters such as bearing and roller pressure. Furthermore, the intelligent operation and maintenance system 130 can obtain sensor data from the equipment status data pool through relevant communication methods. It performs real-time status monitoring and analysis of various parts of the printing equipment using algorithms such as fault prediction models. The intelligent operation and maintenance system 130 then sends the calculated fault prediction results and control parameters such as roller printing pressure adjustment to the electrical control system 160 through the intelligent sensing system 110. The electrical control system 160 then issues various instructions and controls the corresponding mechanisms to complete the specified actions. The status data storage system 120 stores all data from the equipment status data pool to the equipment status storage server in real time. The accumulated sensor data can be used as a historical database for other intelligent subsystems to access and analyze.

[0066] The intelligent sensing system includes a roller pressure monitoring subsystem, a disc spring fault diagnosis subsystem, a lubrication online diagnosis subsystem, a vibration online diagnosis subsystem, a paper monitoring subsystem, a pneumatic monitoring subsystem, a hydraulic monitoring subsystem, and a temperature monitoring subsystem.

[0067] (1) Online monitoring system for pressure between wiping roller and printing roller: The strain force on the bearing housing is measured by the strain sensor on the bearing housing. The relationship between pressure, friction and strain is calibrated by the wiping roller pressure calibration device, and a pressure and friction prediction model is established. Then, the pressure between the wiping roller and the printing roller is calculated based on the stress.

[0068] (2) Online monitoring system for pressure between impression roller and printing plate roller: By calibrating the elastic modulus of the material, analyzing the linear range of elastic strain, and determining the relationship between local deformation and local stress, the system uses a finite element model to determine the relationship coefficients between the strain at multiple measuring points and boundary conditions such as impression pressure within the range of elastic strain. Furthermore, it uses clustering and other analytical methods to establish an indirect measurement model for compressive stress. In addition, sensors are used to measure the distance change between the impression roller and printing plate roller, analyze the contact area between them, and establish a machine learning model for impression quality.

[0069] (3) Disc spring fault diagnosis system: Measure the change of dynamic displacement of disc spring, identify and analyze the performance parameters of disc spring, such as stiffness (displacement) and damping (vibration amplitude) through the impact response process, and then obtain the disc spring status to determine the maintenance strategy, replacement strategy and replacement standard.

[0070] (4) Lubrication Online Diagnostic System: Used to monitor the lubricating oil in the two thin oil lubrication circuits of the printing section 174 and the ink carriage section 176. Using sensors installed in the thin oil lubrication circuits of the printing section 174 and the ink carriage section 176, the system monitors the particulate contamination, moisture, viscosity and temperature of the lubricating oil online. When the monitored indicators exceed the set range, the system will promptly alarm and notify the operator to perform maintenance.

[0071] (5) Vibration online diagnostic system: The system collects vertical, horizontal or axial vibration acceleration, vibration velocity and displacement signals near components such as impression cylinder, printing plate cylinder, color collection cylinder and color mold cylinder through sensors. At the same time, it collects the shell temperature signal at the sensor measuring point. Then, it uses artificial intelligence model to predict bearing and cylinder failures based on the collected sensor data, accurately locates the faulty component, fault type and severity, and automatically alarms through online detection system software.

[0072] (6) Equipment status monitoring: Real-time data collection of temperature, pressure, transmission and other sensor data on printing equipment, and sending real-time data to external systems through fieldbus and other communication methods to realize equipment operation status monitoring, fault prediction and analysis.

[0073] (7) Paper monitoring: Install a video monitoring system (with recording, storage and playback functions) on key parts of the printing equipment. The monitoring video at historical time points can be reviewed and viewed, providing video evidence for anomaly analysis.

[0074] The intelligent operation and maintenance system 130 mainly realizes the following functions: First, based on the equipment status data obtained by the intelligent sensing system 110, it uses data mining, analysis, modeling and other methods to analyze and judge the equipment status and faults, and provides fault or early warning prompts; Second, it realizes maintenance-related functions for printing equipment maintenance needs, including equipment repair and modification records, equipment fault statistical analysis, spare parts replacement cycle prompts, equipment maintenance reports / charts, etc.; Third, it has an electrical control parameter self-setting function, that is, it realizes the one-click setting function of experience parameters when the equipment changes products, which reduces the time for operators to adjust parameters when the equipment changes products; Fourth, it has an automatic parameter adjustment function, that is, during the equipment operation, it uses algorithms to automatically calculate key status parameters such as the pressure of the wiping roller and the pressure of the impression roller, and sends the calculated parameters to the electrical control system 160 to realize the automatic adjustment function of the wiping roller, impression roller and other mechanisms.

[0075] Functionally, the system can be divided into an intelligent diagnostic unit, an intelligent maintenance unit, a parameter self-setting unit, a parameter self-adjustment unit, a system function unit, and a front-end UI interface. These function units interact with external systems via specific communication methods to acquire online / offline data. They obtain online equipment status data from the intelligent sensing system 110 for real-time status monitoring and fault early warning of the printing equipment; and offline equipment status data from the status data storage system 120 for maintenance reports and historical fault statistics. The system can also indirectly interact with the electrical control system 160 via a specific communication protocol, sending fault early warning information, parameter settings, and parameter adjustments to the electrical control system 160 to achieve intelligent control of each actuator.

[0076] Status data storage system 120: This system stores the equipment status data collected by the intelligent sensing system 110 into the database in real time and backs up the data. All historical equipment status data stored in this system can be read by systems such as the intelligent operation and maintenance system 130 through relevant communication protocols, thereby realizing functions such as fault history analysis and operation and maintenance reports for printing equipment.

[0077] like Figure 4 and Figure 5As shown, the printing quality closed-loop control system 150 consists of multiple subsystems, including a printing quality detection subsystem, a real-time ink color analysis subsystem, and a printing quality closed-loop control algorithm. Through hardware such as imaging systems and sensors installed on the printing equipment, artificial intelligence algorithms are used to improve the detection accuracy and ink color analysis accuracy of both on- and offline printing equipment, thereby obtaining adjustment values ​​for parameters such as printing pressure and ink volume. These adjustment values ​​are then sent to the intelligent sensing system 110. The intelligent sensing system 110 uniformly sends all parameter adjustment information to the electrical control system 160, which in turn controls the ink color remote control system 196 and other actuators to adjust process parameters such as ink volume, thus achieving closed-loop control of printing quality.

[0078] (1) Printing Quality Inspection Subsystem: This system preprocesses the images of printed products captured by industrial cameras, and then inputs the processed images into a pre-trained deep learning model for classification. Image analysis algorithms are then used for comprehensive judgment to obtain the detection results. This system can detect various printing quality defects, including inverted sheets, missing prints, stains, oil stains, varying ink density, color bleeding, smudges, ink smudges, ink stains, infrared ink splatter, infrared missing prints, paper folds, paper holes, and oil stains.

[0079] (2) Real-time Ink Color Analysis Subsystem: The standard sample and the product under inspection are separated by color regions. Then, a pre-trained ink color analysis algorithm is used to compare the color difference between the target and the standard sample. Based on the color deviation between the current printed product and the standard sample, a deep learning model is used to adaptively determine the ink key adjustment amount. This system can detect all printing defects such as ink dots, broken lines, missing prints, light stains, ink buildup, reverse smudging, smearing, ghosting, smearing, oil stains, chemical stains, infrared ink stains, and missing prints.

[0080] (3) Printing closed-loop control algorithm: Based on the image data and analysis results provided by the printing quality detection subsystem and the ink key adjustment amount calculated by the real-time ink color analysis subsystem, continuous waste / severe waste closed-loop control, printing overprint quality closed-loop control and printing ink color quality closed-loop control are realized.

[0081] Adaptive wiping control system: This system analyzes pressure data changes between the wiping roller and the printing plate cylinder using pressure sensors to calculate the appropriate clearance range between them under normal printing conditions, thus establishing a model. In actual operation, this model is used to analyze the collected online data in real time to obtain the wiping motor control parameters. These parameters are then sent to the electrical control system 160, which in turn controls the wiping roller motor to achieve automatic clearance adjustment.

[0082] The Human-Machine Interaction System 200 consists of a sample viewing panel, a sample viewing light, operation buttons, a monitor, a touch screen, and a cabinet. This system can interact with the electrical control system 160, intelligent control server, intelligent operation and maintenance system 130, printing quality closed-loop control system 150, and adaptive plate erasure control system 140 via relevant communication protocols. It can also read equipment status data from the data storage server through a cross-platform database. As the main display system for the entire machine, this system aggregates information from each subsystem and displays overall machine information. Different subsystem interfaces can be switched via pages, including full-machine 3D animation, intelligent sensing key sensor data, fault prediction and diagnosis model status data, fault alarms, event reminders, real-time status data of the printing quality closed-loop control model, real-time status data of the adaptive plate erasure control, and real-time ink volume data.

[0083] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. Terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "joining" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0084] In the description of this application, it should be understood that the terms "up," "down," "front," "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or module referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0085] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An intelligent printing device, characterized in that, include: The equipment layer (102) includes a printing equipment body (170) for printing products; The data and control layer (104) includes a printing quality closed-loop control system (150), an electrical control system (160), an adaptive plate erasing control system (140), an intelligent sensing system (110), an intelligent operation and maintenance system (130), and a status data storage system (120). The data and control layer (104) is used to collect and analyze equipment data to realize the control and adjustment of the intelligent printing equipment. The operation layer (106) includes a human-computer interaction system (200) for data interaction with each system of the data and control layer (104) to realize information display and human-computer interaction of each system; The adaptive wiping control system (140) interacts with the electrical control system (160) through a relevant communication protocol. It is used to calculate the corresponding motor adjustment control parameters in real time based on the pressure data between the wiping roller and the printing plate cylinder using an algorithm. The electrical control system (160) controls the corresponding motor to adjust according to the corresponding adjustment parameters, thereby realizing the automatic separation and adjustment of the wiping roller. The adaptive wiping control system analyzes the pressure data changes between the wiping roller and the printing cylinder through pressure sensors, calculates the appropriate clearance value range between the wiping roller and the printing cylinder under normal printing conditions, establishes a model, and uses the model to perform real-time analysis of the collected online data to obtain motor adjustment control parameters. The intelligent sensing system (110) includes a roller pressure monitoring subsystem (202), a disc spring fault diagnosis subsystem (204), a lubrication online diagnosis subsystem (206), a vibration online diagnosis subsystem (208), a paper monitoring subsystem (210), a pneumatic monitoring subsystem (212), a hydraulic monitoring subsystem (214), and a temperature monitoring subsystem (216). The roller pressure monitoring subsystem (202) is used to measure the pressure between the impression roller and the printing plate roller, and the pressure between the wiping roller and the printing plate roller. The disc spring fault diagnosis subsystem (204) is used to monitor the disc spring status and predict the disc spring life; The online lubrication diagnostic subsystem (206) is used to monitor the thin oil lubrication of the printing section (174) and the ink carriage section (176); The vibration online diagnostic subsystem (208) is used to monitor the vibration of the printing roller bearing; The printing quality closed-loop control system (150) includes a printing quality detection subsystem (218), a real-time ink color analysis subsystem (220), and a printing quality closed-loop control algorithm (222). The printing quality inspection subsystem (218) includes: Online inspection system is used for real-time inspection of printed product quality and analysis of product defects; Offline inspection system, used by operators to perform offline quality checks on printed products by sampling; The real-time ink color analysis subsystem (220) is used to analyze the ink color difference between the standard sample and the inspected product and calculate the ink color deviation. The printing quality closed-loop control algorithm (222) is used to calculate the adjustment amount of key parameters such as pressure, temperature and ink volume based on the product quality data fed back by the printing quality detection subsystem (218) and the ink deviation information fed back by the real-time ink color analysis subsystem (220), and send the relevant adjustment amount to the electrical control system (160) and the ink color remote control system (196) through a certain communication method for adjustment; The status data storage system (120) stores the device status data collected by the intelligent sensing system (110) into the database in real time and backs up the data.

2. The intelligent printing equipment according to claim 1, characterized in that, The electrical control system (160), the intelligent sensing system (110), and the printing quality closed-loop control system (150) communicate and adjust with the printing equipment body (170) through relevant communication protocols.

3. The intelligent printing equipment according to claim 2, characterized in that, The printing equipment body (170) includes a paper feeding section (172), a printing section (174), an ink carriage section (176), a paper receiving section (178), a temperature control system (192), a plate wiping mechanism (194), and an ink color remote control system (196). The paper feeding section (172), the printing section (174), the ink carriage section (176), and the paper receiving section (178) are connected in sequence. The temperature control system (192) and the plate wiping mechanism (194) are both connected to the printing unit (174), and the ink color remote control system (196) is connected to the ink carriage unit (176).

4. The intelligent printing equipment according to claim 1, characterized in that, The intelligent sensing system (110) is used to collect online status data of the printing equipment body (170) through sensors to form an equipment status data pool, and to realize data interaction between the printing quality closed-loop control system (150), the electrical control system (160), the adaptive plate erasing control system (140), the intelligent operation and maintenance system (130), the status data storage system (120) and the human-machine interaction system (200).

5. The intelligent printing equipment according to claim 1, characterized in that, The status data storage system (120) interacts with the intelligent sensing system (110) through relevant communication protocols to store online data of the device sensors collected by the intelligent sensing system (110) in real time, and summarizes the data to form a historical database of device status.

6. The intelligent printing equipment according to claim 1, characterized in that, The intelligent operation and maintenance system (130) interacts with the intelligent sensing system (110), the status data storage system (120), the human-computer interaction system (200), and the electrical control system (160) through relevant communication protocols. The intelligent operation and maintenance system (130) is used to obtain online and offline data from the equipment sensors from the intelligent sensing system (110) and the status data storage system (120), perform real-time status monitoring and analysis of the intelligent printing equipment, calculate fault prediction results and parameter adjustment data, send the fault prediction results to the human-machine interaction system (200) for information display through relevant communication protocols, and send the relevant parameter adjustment data to the electrical control system (160) for adjustment.

7. The intelligent printing equipment according to claim 6, characterized in that, The intelligent operation and maintenance system (130) is also used to provide reminders based on the maintenance content set by the operator, and to summarize the equipment failure history and maintenance history to form an operation and maintenance report.

8. The intelligent printing equipment according to claim 7, characterized in that, The intelligent operation and maintenance system (130) is also used to send electrical control parameters to the electrical control system (160) when the equipment changes printed products, based on the pre-set experience parameter formula, so as to realize the one-click distribution of experience parameters.

9. The intelligent printing equipment according to claim 1, characterized in that, The printing quality closed-loop control system (150) interacts with the intelligent sensing system (110) and the printing equipment body (170) through relevant communication protocols to analyze equipment status data and printing product quality data. It uses algorithms to control and adjust key parameters affecting printing product quality in real time, thereby realizing closed-loop control of printing product quality.

10. The intelligent printing equipment according to claim 1, characterized in that, The electrical control system (160) directly interacts with the intelligent sensing system (110), the printing equipment body (170), the adaptive plate erasing control system (140), and the human-machine interaction system (200) through relevant communication protocols, and indirectly interacts with the intelligent operation and maintenance system (130) and the printing quality closed-loop control system (150) through the intelligent sensing system (110). The electrical control system (160) is used to control the relevant mechanisms of the printing equipment body (170) to complete the specified actions based on the adjustment data obtained from the adaptive plate erasing control system (140), the intelligent operation and maintenance system (130), and the printing quality closed-loop control system (150).

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