Green and environment-friendly printing process and system for corrugated carton

Abstract

The invention provides an environment-friendly printing process and system for corrugated cartons, and relates to the technical field of printing equipment, and the environment-friendly printing process and system comprises a state monitoring module, an ink management module, a printing quality detection module and a display and interaction module; the state monitoring module is used for monitoring and analyzing key components of the equipment in the printing process to obtain a monitoring and analyzing result; the printing quality detection module is used for evaluating the printed corrugated carton to obtain a printing evaluation result; and the display and interaction module is used for receiving and displaying the monitoring analysis result, the task prediction value, the demand liquid filling signal and the printing evaluation result. Real-time monitoring and intelligent adjustment of key components of equipment are achieved through the state monitoring module, equipment faults are effectively prevented, the equipment operation stability and the printing efficiency are improved, the printing quality problem can be found in time through the printing quality detection module, the product percent of pass can be increased, and the product market competitiveness is improved.

Description

Technical Field

[0001] The invention relates to the technical field of printing equipment, and in particular to a green and environmentally friendly printing process and system for corrugated paper boxes. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and falls during transportation. It is light, cheap, widely used, simple to make, and can be recycled and even reused, which has led to a significant increase in its application in the packaging of various commodities. A corrugated cardboard printing machine is a mechanical equipment used for printing on corrugated cardboard.

[0003] At present, in the process of corrugated paper box printing, traditional printing methods and equipment have problems such as ink residue, uneven distribution and serious waste. At the same time, there is a lack of effective monitoring and intelligent management methods for the operation status of printing equipment, ink management and printing quality, which leads to low printing efficiency, increased costs and unstable product quality. Therefore, it is necessary to provide a green and environmentally friendly printing process and system for corrugated paper boxes to solve the above technical problems. Summary of the invention

[0004] The present invention provides a green and environmentally friendly printing process and system for corrugated paper boxes, which solves the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides a green and environmentally friendly printing device for corrugated cardboard boxes, including an equipment shell, and inspection doors are hinged on the front and rear sides of one side of the equipment shell, and a transparent glass plate is provided on the inspection door. A motor box is installed and fixed above the inspection door, and a printing component is arranged in the motor box, the inspection door and the equipment shell. An ink filling cover is hinged on the rear end of the top surface of the equipment shell, and an inking component is arranged under the ink filling cover. A feed rack is installed and fixed in the middle of the front end surface of the equipment shell, and transport components are provided on the feed rack and behind the printing component. The printing component, inking component and transport component constitute a printing mechanism.

[0006] Preferably, the transport component includes a feed rack, one end of which is installed and fixed on both sides of the middle part of the front end surface of the equipment shell, two feed shafts are equidistantly arranged and rotatably connected between the feed racks, four feed wheels are evenly and equidistantly fixed on the feed shafts, feed belts are provided in pairs on the outside of the feed wheels, feed rollers are rotatably connected between the equipment shells behind the feed racks, a positioning wheel is provided directly above the feed rollers, and both ends of the positioning wheel are rotatably connected to the equipment shell.

[0007] Preferably, two discharging shafts are provided at a distance on the same horizontal plane behind the feeding roller, both ends of the discharging shafts are rotatably connected to the equipment shell, a discharging wheel is fixedly connected to the discharging shaft, and a discharging belt is sleeved on the discharging wheel.

[0008] Preferably, the printing assembly includes a gravure roller, one end of the gravure roller is rotatably connected to the rear side of the upper end of the equipment shell, and the other side of the gravure roller is rotatably connected to and passes through the equipment shell, and the first gear is fixedly connected to one end of the gravure roller passing through the equipment shell, and the first gear is obliquely lowered and abutted with the second gear, one side of the second gear is fixedly connected to a rubber impression roller, the outer side surface of the rubber impression roller abuts the outer side surface of the gravure roller, both ends of the rubber impression roller are rotatably connected to the equipment shell, and a third gear is lowered and abutted, and one side of the third gear is fixedly connected to a pressure plate roller, and both ends of the pressure plate roller are rotatably connected to the equipment shell; a belt is sleeved on the connecting shaft between the first gear and the gravure roller, and the other end of the belt is sleeved on the motor, and the motor is installed and fixed in the motor box, and two belts are sleeved on the connecting shaft on one side of the second gear, the other end of one of the belts is sleeved on the outer side surface of the feeding shaft, and the other end of the other of the belts is sleeved on the outer side surface of the discharging shaft.

[0009] Preferably, the inking component includes an ink filling cover, a liquid storage tank is provided below the ink filling cover, the liquid storage tank is fixedly connected to the equipment shell, a partition is vertically fixedly connected to the middle part of the liquid storage tank, and sealing strips are opened on the bottom surface of the liquid storage tank in front and behind the partition, an ink roller is provided in the sealing strip in front of the partition, and a base liquid roller is provided in the sealing strip behind the partition, the ink roller and the base liquid roller are both rotatably connected to the equipment shell, and the outer sides of the ink roller and the base liquid roller abut against the outer side of the gravure cylinder.

[0010] According to the above, the present application also provides a green and environmentally friendly printing process for corrugated paper boxes, comprising the following steps:

[0011] S1, Storage and distribution of ink and base fluid:

[0012] S11, storing the ink and the base liquid in a liquid storage tank below the ink filling cover, respectively, wherein the liquid storage tank is fixedly connected to the device shell;

[0013] S12, the interior of the liquid storage tank is divided into two areas by a partition fixed vertically in the middle to ensure that the ink and the base liquid are stored separately;

[0014] S2, ink and base liquid coating process:

[0015] S21, starting the printing device, the gravure cylinder starts to rotate under the power drive, and its power source is a belt drive connected to the motor;

[0016] S22, as the gravure cylinder rotates, the ink roller and the base liquid roller abutting against the outer side of the gravure cylinder also start to rotate, the ink roller and the base liquid roller take ink and base liquid from the liquid storage tank respectively, the base liquid roller transfers the base liquid to the gravure cylinder, so that the surface of the gravure cylinder is evenly covered with a layer of base liquid, and the ink roller transfers the ink to the gravure cylinder covered with the base liquid;

[0017] S3, Printing process:

[0018] S31, placing the corrugated paper box to be printed on a feed rack, one end of the feed rack is fixed on both sides of the middle of the front end surface of the equipment shell, and the feed wheels on the feed shafts that are equidistantly arranged and rotatably connected between the feed racks convey the corrugated paper box to the printing area through the feed belts that are set in pairs;

[0019] S32, the corrugated paper box is adjusted in posture and position by the feeding roller and the positioning wheel. The positioning wheel is located directly above the feeding roller, and both ends are rotatably connected to the equipment shell;

[0020] S33, when the corrugated paper box enters between the rubber impression cylinder and the platen cylinder, the ink on the gravure cylinder is transferred to the corrugated paper box under the pressure of the rubber impression cylinder to complete the printing.

[0021] According to the above, the present application also provides a green and environmentally friendly printing system for corrugated paper boxes, including a status monitoring module, an ink management module, a printing quality detection module, and a display and interaction module;

[0022] The status monitoring module is used to monitor and analyze the key components of the equipment during the printing process and obtain the monitoring and analysis results; wherein the monitoring and analysis results include the speed influence value, dynamic adjustment factor, and abnormal signals of related components of each key component. The key components of the equipment include the motor, rubber impression cylinder, gravure cylinder, and platen cylinder;

[0023] The ink management module is used to monitor and analyze the liquid level information of the liquid storage tank to obtain the task prediction value and the required filling signal;

[0024] The printing quality detection module is used to evaluate the printed corrugated paper boxes and obtain the printing evaluation results; wherein the printing evaluation results include the qualified difference values ​​of all indicators in the quality indicators of all printed products and the printing quality value and the defective rate of the production task;

[0025] The display and interaction module is used to receive and display monitoring and analysis results, task prediction values, required filling signals and printed evaluation results.

[0026] As a preferred method, key components of the equipment in the printing process are monitored and analyzed, specifically:

[0027] Identify the current printing production task and extract the driving parameters from the production task, the driving parameters including the preset motor output shaft speed, the speed of the rubber impression cylinder, the speed of the gravure cylinder, and the speed of the platen cylinder;

[0028] Obtain key equipment components in the printing process, including motor output shafts, rubber impression cylinders, gravure cylinders, and platen cylinders;

[0029] The speeds of the motor output shaft, the rubber impression cylinder, the gravure cylinder, and the platen cylinder are calculated to differ from their corresponding preset speeds to obtain corresponding speed pre-difference values;

[0030] Set the dynamic monitoring time zone, obtain the speed pre-difference value at any time in the dynamic monitoring time zone, calculate the statistical indicators of the speed pre-difference value in the dynamic monitoring time zone, including the maximum value, minimum value, and variance; perform weighted processing on the speed pre-difference value and all indicators in the statistical indicators to obtain the speed influence value;

[0031] Set the speed impact thresholds corresponding to the motor output shaft, rubber impression roller, gravure roller, and platen roller. If the speed impact value is greater than the speed impact threshold, it indicates that the corresponding speed is abnormal. If the speed of the motor output shaft is abnormal, the speed impact value is converted into a dynamic adjustment factor. The dynamic adjustment factor is used to dynamically adjust the speed of the motor output shaft.

[0032] If the rotation speed of the rubber embossing roller, gravure roller, and platen roller is abnormal, an abnormal signal of the associated component is generated; the rotation speed influence value, dynamic adjustment factor, and abnormal signal of the associated component of each key component are marked as monitoring and analysis results.

[0033] As a preferred method, the liquid level information of the liquid storage tank is monitored and analyzed, specifically:

[0034] Obtain the remaining amount of ink and base liquid in the liquid storage tank, set the liquid level thresholds corresponding to the ink and base liquid, and generate a corresponding replenishment signal if the remaining amount of ink or base liquid is less than the set liquid level threshold;

[0035] Get the current production task, extract printing information from the production task, including printing pattern complexity, printing area, and printing quantity; get the printing material of the printed product, and assign a material score to the printing material; perform weighted processing on all parameters in the printing information and the material score to obtain the task prediction value;

[0036] If the task prediction value is less than the preset task required threshold, it means that the current remaining amount of ink or base liquid is insufficient to support the current production task, and a liquid filling demand signal is generated.

[0037] Preferably, the printed corrugated box is evaluated as follows:

[0038] Install a high-definition camera at the discharge point to collect real-time images of the printed corrugated boxes to obtain printed images;

[0039] Identify printed patterns from printed images and obtain quality indicators of printed patterns, including clarity, color accuracy, and registration accuracy;

[0040] The qualified value of any index in the quality index of the printed image is set, and the qualified value corresponding to the index is obtained by subtracting the corresponding qualified value from the value of any index in the quality index of the printed image; the qualified difference values ​​of all the indexes in the quality index of the printed image are weighted to obtain the printing quality value;

[0041] The printing quality value is compared with the preset printing quality threshold. If the printing quality value is less than the preset printing quality threshold, it means that the printed image on the printed product is unqualified, and the number of defective products of the production task is recorded plus one. After the production task is completed, the number of printings and the number of defective products of the production task are counted, and the defective rate is obtained by dividing the number of printings by the number of defective products.

[0042] The qualified difference values ​​of all indicators in the quality indicators of all printed products, the printing quality value, and the defective rate of the production task are marked as the printing evaluation results.

[0043] Compared with the related art, the green and environmentally friendly printing process and system for corrugated paper boxes provided by the present invention has the following beneficial effects:

[0044] 1. The present invention realizes real-time monitoring and intelligent adjustment of key components of the equipment through the status monitoring module, effectively prevents equipment failure, improves equipment operation stability and printing efficiency, and can timely discover printing quality problems through the printing quality detection module, which helps to improve product qualification rate and enhance product market competitiveness.

[0045] 2. The present invention facilitates the transfer of gravure patterns or fonts through the cooperation of the rubber embossing roller and the gravure roller, thereby realizing the printing capacity of the corrugated cardboard. Furthermore, through the cooperation of the base liquid roller and the ink roller, a layer of base liquid is filled between the ink and the gravure, thereby realizing the ability to prevent the ink from adhering to the gravure, and solving the problem of uneven ink distribution and waste of ink caused by a large amount of ink remaining on the printing wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the overall appearance of a green and environmentally friendly printing device for a corrugated paper box provided by the present invention;

[0047] Figure 2 This is a front view schematic diagram of the overall appearance of the device proposed by the present invention;

[0048] Figure 3 A schematic side view of the overall appearance of the device proposed by the present invention;

[0049] Figure 4 A three-dimensional schematic diagram of the printing mechanism structure proposed by the present invention;

[0050] Figure 5 A schematic side view of the printing mechanism structure proposed by the present invention;

[0051] Figure 6 This is a three-dimensional schematic diagram of the ink coating assembly structure proposed by the present invention;

[0052] Figure 7 This is a principle block diagram of a green environmentally friendly printing system for corrugated paper boxes proposed by the present invention;

[0053] Figure 8 This is a flowchart of a green and environmentally friendly printing process for corrugated paper boxes proposed by the present invention.

[0054] Numbers in the figure: 1. Equipment shell; 2. Inspection door; 3. Ink filling cover; 4. Motor box; 5. Feed rack; 6. Feed shaft; 7. Feed wheel; 8. Feed belt; 9. Feed roller; 10. Positioning wheel; 11. Gravure cylinder; 12. First gear; 13. Second gear; 14. Rubber impression cylinder; 15. Third gear; 16. Platen roller; 17. Base liquid roller; 18. Ink roller; 19. Liquid storage tank; 20. Partition; 21. Discharge shaft; 22. Discharge wheel; 23. Discharge belt. DETAILED DESCRIPTION

[0055] 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.

[0056] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "group", "class" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0057] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0058] Please refer to Figure 1-Figure 8 A green and environmentally friendly printing process for corrugated paper boxes, comprising an equipment shell 1, with an inspection door 2 hinged on both the front and rear sides of one side of the equipment shell 1, a transparent glass plate being provided on the inspection door 2, a motor box 4 being fixedly installed above the inspection door 2, a printing component being arranged in the motor box 4, the inspection door 2 and the equipment shell 1, an ink-adding cover 3 being hingedly installed on the rear end of the top surface of the equipment shell 1, an inking component being arranged under the inking cover 3, a feed rack 5 being fixedly installed in the middle of the front end surface of the equipment shell 1, a transport component being provided on the feed rack 5 and behind the printing component, the printing component, the inking component and the transport component together forming a printing mechanism, and the modular design is convenient for equipment maintenance and upgrading; the transport component comprises a feed rack 5, one end of which is fixedly installed on both sides of the middle of the front end surface of the equipment shell 1, and the feed rack 5 is fixedly installed on both sides of the front end surface of the equipment shell 1. Two feeding shafts 6 are equidistantly arranged and rotatably connected between the material racks 5, four feeding wheels 7 are evenly and equidistantly fixed on the feeding shafts 6, and feeding belts 8 are sleeved in pairs on the outer sides of the feeding wheels 7. Feeding rollers 9 are rotatably connected between the equipment shells 1 behind the feed racks 5, and a positioning wheel 10 is provided just above the feeding roller 9. Both ends of the positioning wheel 10 are rotatably connected to the equipment shell 1. Two discharging shafts 21 are provided at a distance on the same horizontal plane behind the feeding rollers 9, and both ends of the discharging shaft 21 are rotatably connected to the equipment shell 1. A discharging wheel 22 is fixed to the discharging shaft 21, and a discharging belt 23 is sleeved on the discharging wheel 22. The cooperation of the feeding shaft 6 and the discharging shaft 21 facilitates the movement of the cardboard.

[0059] In the present invention, the printing assembly includes a gravure cylinder 11, one end of the gravure cylinder 11 is rotatably connected to the rear side of the upper end inside the equipment shell 1, the other side of the gravure cylinder 11 is rotatably connected and passes through the equipment shell 1, a first gear 12 is fixedly connected to one end of the gravure cylinder 11 passing through the equipment shell 1, a second gear 13 is matched and abutted obliquely below the first gear 12, a rubber impression cylinder 14 is fixedly connected to one side of the second gear 13, the outer side surface of the rubber impression cylinder 14 abuts the outer side surface of the gravure cylinder 11, both ends of the rubber impression cylinder 14 are rotatably connected to the equipment shell 1, a third gear 15 is matched and abutted below the second gear 13, a pressure plate cylinder 16 is fixedly connected to one side of the third gear 15, and both ends of the pressure plate cylinder 16 are rotatably connected to the equipment shell 1, a belt is sleeved on the connecting shaft between the first gear 12 and the gravure cylinder 11, and the other end of the belt is sleeved on the motor, and the motor is installed and fixed in the motor box 4, and a belt is sleeved on the connecting shaft on one side of the second gear 13. There are two belts, the other end of one of the belts is sleeved on the outer side of the feeding shaft 6, and the other end of the other belt is sleeved on the outer side of the discharging shaft 21. Through the cooperation of the belt and the gear set, it is convenient to transmit the power of the motor and drive the printing mechanism to work; the inking component includes an ink adding cover 3, and a liquid storage tank 19 is provided below the ink adding cover 3. The liquid storage tank 19 is fixedly connected to the equipment shell 1, and a partition 20 is vertically fixedly connected to the middle part of the liquid storage tank 19. The bottom surface of the liquid storage tank 19 is provided with sealing strips in front and behind the partition 20. An ink roller 18 is provided in the sealing strip in front of the partition 20, and a base liquid roller 17 is provided in the sealing strip behind the partition 20. The ink roller 18 and the base liquid roller 17 are both rotatably connected to the equipment shell 1, and the outer sides of the ink roller 18 and the base liquid roller 17 are both against the outer side of the gravure cylinder 11. Through the cooperation of the base liquid roller 17 and the ink roller 18, it is convenient to fill a layer of base liquid between the ink and the gravure.

[0060] Working principle: When the present invention is used, firstly, power is supplied to all electrical devices, the ink filling cover 3 is opened, base liquid and ink are added to the corresponding pool in the liquid storage tank 19, the ink filling cover 3 is closed, and the motor in the motor box 4 is started. The motor drives the gravure cylinder 11 to rotate through the belt, thereby driving the base liquid roller 17 and the ink roller 18 to rotate, so that a layer of base liquid is first covered and then a layer of ink is covered. Because the gravure cylinder 11 rotates, the first gear 12 and the second gear 13 are driven to rotate, so that the rubber impression cylinder 14 rotates , the ink on the gravure cylinder 11 that is in contact with the rubber impression cylinder 14 is transferred to the rubber impression cylinder 14, and the target cardboard is placed on the feeding belt 8, and the cardboard will be pushed between the feeding roller 9 and the positioning wheel 10. The positioning wheel 10 automatically corrects the cardboard posture, so that the cardboard is straightened and enters between the rubber impression cylinder 14 and the pressure plate cylinder 16, and the ink on the rubber impression cylinder 14 is transferred to the cardboard surface again, and then the cardboard will be discharged from the other end of the equipment driven by the discharge belt 23 to realize cardboard printing.

[0061] According to the above, the present application also provides a green and environmentally friendly printing process for corrugated paper boxes, comprising the following steps:

[0062] S1, Storage and distribution of ink and base fluid:

[0063] S11, the ink and the base liquid are stored in the liquid storage tank 19 below the ink filling cover 3, respectively, and the liquid storage tank 19 is fixedly connected to the device shell 1;

[0064] S12, the interior of the liquid storage tank 19 is divided into two areas by a partition 20 fixed vertically in the middle, so as to ensure that the ink and the base liquid are stored separately;

[0065] S2, ink and base liquid coating process:

[0066] S21, starting the printing device, the gravure cylinder 11 starts to rotate under the power drive, and its power source is a belt drive connected to the motor;

[0067] S22, as the gravure cylinder 11 rotates, the ink roller 18 and the base liquid roller 17 abutting against the outer side of the gravure cylinder 11 also start to rotate, the ink roller 18 and the base liquid roller 17 respectively take ink and base liquid from the liquid storage tank 19, the base liquid roller 17 transfers the base liquid to the gravure cylinder 11, so that the surface of the gravure cylinder 11 is evenly covered with a layer of base liquid, and the ink roller 18 transfers the ink to the gravure cylinder 11 covered with the base liquid;

[0068] S3, Printing process:

[0069] S31, placing the corrugated paper box to be printed on the feed rack 5, one end of the feed rack 5 is fixed on both sides of the middle of the front end surface of the equipment shell 1, and the feed wheels 7 on the feed shafts 6 equidistantly arranged and rotatably connected between the feed racks 5 convey the corrugated paper box to the printing area through the feed belts 8 arranged in pairs;

[0070] S32, the corrugated paper box is adjusted in posture and position by the feeding roller 9 and the positioning wheel 10, the positioning wheel 10 is located directly above the feeding roller 9, and both ends are rotatably connected to the equipment shell 1;

[0071] S33, when the corrugated paper box enters between the rubber impression cylinder 14 and the platen cylinder 16, the ink on the gravure cylinder 11 is transferred to the corrugated paper box under the pressure of the rubber impression cylinder 14, and the printing is completed.

[0072] According to the above, the present application provides a green and environmentally friendly printing system for corrugated paper boxes, including a status monitoring module, an ink management module, a printing quality detection module, and a display and interaction module;

[0073] The status monitoring module is used to monitor and analyze the key components of the equipment during the printing process and obtain the monitoring and analysis results; wherein the monitoring and analysis results include the speed influence value, dynamic adjustment factor, and abnormal signal of the associated components of each key component. The key components of the equipment include the motor, the rubber impression cylinder 14, the gravure cylinder 11, and the platen cylinder 16;

[0074] The ink management module is used to monitor and analyze the liquid level information of the liquid storage tank 19 to obtain the task prediction value and the required filling signal;

[0075] The printing quality detection module is used to evaluate the printed corrugated paper boxes and obtain the printing evaluation results; wherein the printing evaluation results include the qualified difference values ​​of all indicators in the quality indicators of all printed products and the printing quality value and the defective rate of the production task;

[0076] Display and interaction module, used to receive and display monitoring and analysis results, task prediction values ​​and required filling signals and printed evaluation results;

[0077] It should be noted that the display and interaction module supports access from multiple terminal devices, including computers, tablets and mobile phones; operators can log in to the system through the corresponding terminal devices no matter where they are, view various information in the printing production process in real time, and perform necessary operations and management.

[0078] It should be noted that the system also includes a sensor setting acquisition module; the sensor setting acquisition module is used to install speed sensors on the motor, the motor output shaft and the rubber impression cylinder 14, the gravure cylinder 11, and the platen cylinder 16, and is used to collect the speed of the motor output shaft, the speed of the rubber impression cylinder 14, the speed of the gravure cylinder 11, and the speed of the platen cylinder 16; it also includes installing a liquid level sensor in the liquid storage tank 19; the liquid level sensor is used to collect the remaining amount of ink and base liquid in the liquid storage tank 19; it also includes installing a high-definition camera at the discharge point to collect real-time images of the printed corrugated paper box to obtain a printed image;

[0079] In this application, key components of the equipment during the printing process are monitored and analyzed, specifically:

[0080] Identify the current printing production task, and extract the driving parameters from the production task, the driving parameters including the preset motor output shaft speed, the speed of the rubber impression cylinder 14, the speed of the gravure cylinder 11, and the speed of the platen cylinder 16;

[0081] Obtain key components of the equipment in the printing process, including the motor output shaft, the rubber impression cylinder 14, the gravure cylinder 11, and the platen cylinder 16;

[0082] The speeds of the motor output shaft, the rubber impression cylinder 14, the gravure cylinder 11, and the platen cylinder 16 are calculated to differ from their corresponding preset speeds to obtain corresponding speed pre-differences;

[0083] Set the dynamic monitoring time zone, obtain the speed pre-difference value GF1 at any time in the dynamic monitoring time zone, calculate the statistical indicators of the speed pre-difference value in the dynamic monitoring time zone, including the maximum value GF2, the minimum value GF3, and the variance GF4; perform weighted processing on the speed pre-difference value and all the indicators in the statistical indicators to obtain the speed influence value GF, and the formula is GF=GF1×r1+GF2×r2+GF3×r3+GF4×r4; among which r1, r2, r3, and r4 respectively represent the weight influence factors corresponding to the maximum value, minimum value, and variance of the speed pre-difference value and the corresponding statistical indicators;

[0084] The speed influence thresholds corresponding to the motor output shaft, the rubber impression cylinder 14, the gravure cylinder 11, and the platen cylinder 16 are set. If the speed influence value is greater than the speed influence threshold, it indicates that the corresponding speed is abnormal. If the speed of the motor output shaft is abnormal, the speed influence value is converted into a dynamic adjustment factor through what; the dynamic adjustment factor is used to dynamically adjust the speed of the motor output shaft.

[0085] If the rotation speeds of the rubber embossing cylinder 14, the gravure cylinder 11, and the platen cylinder 16 are abnormal, an abnormal signal of a related component is generated; the rotation speed influence value, dynamic adjustment factor, and abnormal signal of a related component of each key component are marked as monitoring and analysis results.

[0086] In this application, the liquid level information of the liquid storage tank 19 is monitored and analyzed, specifically:

[0087] Obtain the remaining amount of ink and base liquid in the liquid storage tank 19, set the liquid level thresholds corresponding to the ink and base liquid, and generate a corresponding replenishment signal if the remaining amount of ink or base liquid is less than the set liquid level threshold;

[0088] Get the current production task, extract printing information from the production task, including printing pattern complexity, printing area, and printing quantity; get the printing material of the printed product, and assign a material score to the printing material; perform weighted processing on all parameters in the printing information and the material score to obtain the task prediction value;

[0089] If the task prediction value is less than the preset task required threshold, it means that the current remaining amount of ink or base liquid is insufficient to support the current production task, and a liquid filling demand signal is generated.

[0090] In this application, printed corrugated boxes are evaluated for:

[0091] Identify printed patterns from printed images and obtain quality indicators of printed patterns, including clarity, color accuracy, and registration accuracy;

[0092] Set the qualified value of any index in the quality index of the printed image, subtract the corresponding qualified value from the value of any index in the quality index of the printed image to obtain the qualified difference iHG corresponding to the index, where i represents the index number in the quality index; perform weighted processing on the qualified differences of all indexes in the quality index of the printed image to obtain the printing quality value R, which is expressed by the formula: Where n represents the number of indicators in the quality index, if represents the weight influence factor of indicator i in the quality index;

[0093] The printing quality value is compared with the preset printing quality threshold. If the printing quality value is less than the preset printing quality threshold, it means that the printed image on the printed product is unqualified, and the number of defective products of the production task is recorded plus one. After the production task is completed, the number of printings and the number of defective products of the production task are counted, and the defective rate is obtained by dividing the number of printings by the number of defective products.

[0094] The qualified difference values ​​of all indicators in the quality indicators of all printed products, the printing quality value, and the defective rate of the production task are marked as the printing evaluation results.

[0095] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in this disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0096] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A green and environmentally friendly printing device for corrugated paper boxes, comprising a device housing (1), characterized in that: An inspection door (2) is hingedly connected to both the front and rear sides of one side of the device shell (1), and a transparent glass plate is provided on the inspection door (2). A motor box (4) is fixedly installed above the inspection door (2), and a printing component is provided in the motor box (4), the inspection door (2) and the device shell (1). An ink filling cover (3) is hingedly connected to the rear end of the top surface of the device shell (1), and an ink coating component is provided under the ink filling cover (3). A feed rack (5) is fixedly installed in the middle of the front end surface of the device shell (1), and a transport component is provided on the feed rack (5) and behind the printing component. The printing component, the ink coating component and the transport component constitute a printing mechanism.

2. A green environmentally friendly printing device for corrugated paper boxes according to claim 1, characterized in that: The transport assembly comprises a feed rack (5), one end of which is fixedly mounted on both sides of the middle of the front end surface of the equipment shell (1), two feed shafts (6) are equidistantly arranged and rotatably connected between the feed racks (5), four feed wheels (7) are evenly and equidistantly fixedly connected to the feed shafts (6), and feed belts (8) are sleeved in pairs on the outer sides of the feed wheels (7), a feed roller (9) is rotatably connected between the equipment shell (1) behind the feed rack (5), a positioning wheel (10) is provided directly above the feed roller (9), and both ends of the positioning wheel (10) are rotatably connected to the equipment shell (1).

3. The green environmental protection printing device for corrugated paper boxes according to claim 2, characterized in that: Two discharge shafts (21) are arranged at a distance on the same horizontal plane behind the feeding roller (9), and both ends of the discharge shafts (21) are rotatably connected to the equipment shell (1). A discharge rotating wheel (22) is fixedly connected to the discharge shaft (21), and a discharge belt (23) is sleeved on the discharge rotating wheel (22).

4. The green environmental protection printing device for corrugated paper boxes according to claim 1, characterized in that: The printing assembly comprises a gravure roller (11), one end of the gravure roller (11) is rotatably connected to the rear side of the upper end inside the device shell (1), the other side of the gravure roller (11) is rotatably connected to and passes through the device shell (1), a first gear (12) is fixedly connected to the end of the gravure roller (11) passing through the device shell (1), a second gear (13) is matched and abutted at an angle below the first gear (12), a rubber impression roller (14) is fixedly connected to one side of the second gear (13), the outer side surface of the rubber impression roller (14) abuts against the outer side surface of the gravure roller (11), and both ends of the rubber impression roller (14) are rotatably connected to the device shell (1). A third gear (15) is cooperatingly abutted below the second gear (13), and a pressure plate roller (16) is fixedly connected to one side of the third gear (15), and both ends of the pressure plate roller (16) are rotatably connected to the equipment shell (1); a belt is sleeved on the connecting shaft between the first gear (12) and the gravure roller (11), and the other end of the belt is sleeved on the motor, and the motor is installed and fixed in the motor box (4); two belts are sleeved on the connecting shaft on one side of the second gear (13), and the other end of one of the belts is sleeved on the outer surface of the feeding shaft (6), and the other end of the other belt is sleeved on the outer surface of the discharging shaft (21).

5. The green environmental protection printing device for corrugated paper boxes according to claim 1, characterized in that: The ink coating component comprises an ink filling cover (3), a liquid storage tank (19) is provided below the ink filling cover (3), the liquid storage tank (19) is fixedly connected to the device shell (1), a partition (20) is vertically fixedly connected to the middle part of the liquid storage tank (19), the bottom surface of the liquid storage tank (19) is provided with sealing strips in front and behind the partition (20), an ink roller (18) is provided in the sealing strip in front of the partition (20), and a base liquid roller (17) is provided in the sealing strip behind the partition (20), the ink roller (18) and the base liquid roller (17) are both rotatably connected to the device shell (1), and the outer side surfaces of the ink roller (18) and the base liquid roller (17) are both in contact with the outer side surface of the gravure cylinder (11).

6. A green and environmentally friendly printing process for corrugated paper boxes, using a green and environmentally friendly printing device for corrugated paper boxes according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, Storage and distribution of ink and base fluid: S11, the ink and the base liquid are stored in a liquid storage tank (19) below the ink filling cover (3), respectively, and the liquid storage tank (19) is fixedly connected to the device housing (1); S12, the interior of the liquid storage tank (19) is divided into two areas by a partition (20) fixed vertically in the middle, so as to ensure that the ink and the base liquid are stored separately; S2, ink and base liquid coating process: S21, starting the printing device, the gravure cylinder (11) starts to rotate under the power drive, and its power source is a belt drive connected to the motor; S22, as the gravure cylinder (11) rotates, the ink roller (18) and the base liquid roller (17) abutting against the outer side of the gravure cylinder (11) also start to rotate, the ink roller (18) and the base liquid roller (17) respectively take ink and base liquid from the liquid storage tank (19), the base liquid roller (17) transfers the base liquid to the gravure cylinder (11), so that the surface of the gravure cylinder (11) is evenly covered with a layer of base liquid, and the ink roller (18) transfers the ink to the gravure cylinder (11) covered with the base liquid; S3, Printing process: S31, placing the corrugated paper box to be printed on a feed rack (5), one end of the feed rack (5) is fixedly mounted on both sides of the middle of the front end surface of the equipment shell (1), and the feed wheels (7) on the feed shafts (6) equidistantly arranged and rotatably connected between the feed racks (5) convey the corrugated paper box to the printing area through the feed belts (8) arranged in pairs; S32, the corrugated paper box is adjusted in posture and position by the feeding roller (9) and the positioning wheel (10), the positioning wheel (10) is located directly above the feeding roller (9), and the two ends are rotatably connected to the equipment shell (1); S33, when the corrugated paper box enters between the rubber impression cylinder (14) and the platen cylinder (16), the ink on the gravure cylinder (11) is transferred to the corrugated paper box under the pressure of the rubber impression cylinder (14), and the printing is completed.

7. A green environmental printing system for corrugated paper boxes, using a green environmental printing device for corrugated paper boxes according to any one of claims 1 to 5, characterized in that: It includes status monitoring module, ink management module, printing quality detection module, display and interaction module; A status monitoring module is used to monitor and analyze key components of the equipment during the printing process to obtain monitoring and analysis results; wherein the monitoring and analysis results include the speed influence value, dynamic adjustment factor, and abnormal signals of related components of each key component, and the key components of the equipment include a motor, a rubber impression cylinder (14), a gravure cylinder (11), and a pressure plate cylinder (16); An ink management module is used to monitor and analyze the liquid level information of the liquid storage tank (19) to obtain a task prediction value and a required liquid filling signal; The printing quality detection module is used to evaluate the printed corrugated paper boxes and obtain the printing evaluation results; wherein the printing evaluation results include the qualified difference values ​​of all indicators in the quality indicators of all printed products and the printing quality value and the defective rate of the production task; The display and interaction module is used to receive and display monitoring and analysis results, task prediction values, required filling signals and printed evaluation results.

8. A green environmentally friendly printing system for corrugated paper boxes according to claim 7, characterized in that: Monitor and analyze the key components of the equipment during the printing process, specifically: Identifying the current printing production task, and extracting driving parameters from the production task, the driving parameters including a preset motor output shaft speed, a rubber impression cylinder (14) speed, a gravure cylinder (11) speed, and a platen cylinder (16) speed; Obtaining key components of the equipment in the printing process, including a motor output shaft, a rubber impression cylinder (14), a gravure cylinder (11), and a platen cylinder (16); The rotation speeds of the motor output shaft, the rubber impression roller (14), the gravure roller (11), and the pressure plate roller (16) are calculated to differ from their corresponding preset rotation speeds to obtain corresponding rotation speed pre-difference values; Set the dynamic monitoring time zone, obtain the speed pre-difference value at any time in the dynamic monitoring time zone, calculate the statistical indicators of the speed pre-difference value in the dynamic monitoring time zone, including the maximum value, minimum value, and variance; perform weighted processing on the speed pre-difference value and all indicators in the statistical indicators to obtain the speed influence value; The speed influence thresholds corresponding to the motor output shaft, the rubber impression roller (14), the gravure roller (11), and the pressure plate roller (16) are set. If the speed influence value is greater than the speed influence threshold, it indicates that the corresponding speed is abnormal. If the speed of the motor output shaft is abnormal, the speed influence value is converted into a dynamic adjustment factor. The dynamic adjustment factor is used to dynamically adjust the speed of the motor output shaft. If the rotation speed of the rubber embossing roller (14), the gravure roller (11), and the pressure plate roller (16) is abnormal, an abnormal signal of the associated component is generated; the rotation speed influence value, dynamic adjustment factor, and abnormal signal of the associated component of each key component are marked as monitoring and analysis results.

9. The green environmental protection printing system for corrugated paper boxes according to claim 7, characterized in that: Monitor and analyze the liquid level information of the liquid storage tank (19), specifically: Obtaining the remaining amount of ink and base liquid in the liquid storage tank (19), setting liquid level thresholds corresponding to the ink and base liquid, and generating a corresponding replenishment signal if the remaining amount of the ink or base liquid is less than the set liquid level threshold; Get the current production task, extract printing information from the production task, including printing pattern complexity, printing area, and printing quantity; get the printing material of the printed product, and assign a material score to the printing material; perform weighted processing on all parameters in the printing information and the material score to obtain the task prediction value; If the task prediction value is less than the preset task required threshold, it means that the current remaining amount of ink or base liquid is insufficient to support the aforementioned production task, and a liquid filling demand signal is generated.

10. The green environmental protection printing system for corrugated paper boxes according to claim 7, characterized in that: Evaluate the printed corrugated boxes, specifically: Identify printed patterns from printed images and obtain quality indicators of printed patterns, including clarity, color accuracy, and registration accuracy; Setting a qualified value of any index among the quality indexes of the printed image, and subtracting the corresponding qualified value from the value of any index among the quality indexes of the printed image to obtain a qualified difference value corresponding to the index; The qualified differences of all indicators in the quality index of the printed image are weighted to obtain the printing quality value; The printing quality value is compared with the preset printing quality threshold. If the printing quality value is less than the preset printing quality threshold, it means that the printed image on the printed product is unqualified, and the number of defective products of the production task is recorded plus one. After the production task is completed, the number of printings and the number of defective products of the production task are counted, and the defective rate is obtained by dividing the number of printings by the number of defective products. The qualified difference values ​​of all indicators in the quality indicators of all printed products, the printing quality value, and the defective rate of the production task are marked as the printing evaluation results.

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