A printing ink control system

Abstract

This invention discloses a printing ink control system, relating to the field of printing ink control. The system includes a concentration detection module for detecting ink concentration data and sending it to a central control module; a central control module for generating ink control commands based on the ink concentration data and sending these commands to an injection control module; an injection control module for controlling ink injection according to the ink control commands and sending the injection data to a feedback adjustment module; a feedback adjustment module for receiving ink injection data and sending it to the central control module; and an ink material adhesion testing module for detecting the adhesion of ink to the printing material and sending the adhesion data to the central control module. The central control module also adjusts the ink concentration or injection data based on the adhesion status. This invention can accurately and stably control printing ink, thereby improving print quality.

Description

Technical Field

[0001] This invention relates to the field of printing ink control, and in particular to a printing ink control system. Background Technology

[0002] Printing technology has changed significantly over time. In recent years, with the increase in production demand and customers’ high requirements for printing quality, the control of printing ink has become a key factor. In traditional printing technology, ink control is usually based on experience and operator judgment. Although this method is effective in some cases, it also has many problems.

[0003] First, empirical control is often inaccurate and may lead to unstable ink concentration, thus affecting print quality. Second, traditional techniques make it difficult to detect ink adhesion in real time, which may result in insufficient or excessive ink adhesion on certain printing materials. In addition, ink flowability and drying speed are also key factors, but they are difficult to control accurately in traditional techniques, which may lead to poor ink flow or insufficient drying, thus affecting printing speed and quality.

[0004] Finally, with the increasing market demand for fast and efficient printing, traditional ink control methods are struggling to meet the needs of modern production. Therefore, it is crucial to develop a system that can control ink accurately in real time.

[0005] In summary, existing printing ink control technologies suffer from various problems, such as inaccurate control, inability to detect adhesion in real time, and difficulty in regulating flowability and drying speed. These problems limit the development of the printing industry, and there is an urgent need for a new ink control system to solve these issues. Summary of the Invention

[0006] The purpose of this invention is to provide a printing ink control system that can accurately and stably control printing ink, thereby improving printing quality.

[0007] To achieve the above objectives, the present invention provides the following solution:

[0008] A printing ink control system includes: a concentration detection module, a central control module, an injection control module, a feedback adjustment module, a property adaptive adjustment module, and an ink material adhesion testing module;

[0009] The concentration detection module is used to detect the ink concentration data of the ink and send the ink concentration data to the central control module;

[0010] The central control module is used to generate ink control commands based on the ink concentration data and send the ink control commands to the jetting control module.

[0011] The ink injection control module is used to control ink injection according to the ink control command and send ink injection data to the feedback adjustment module;

[0012] The feedback adjustment module is used to receive the ink injection data and send the injection data to the central control module;

[0013] The ink material adhesion testing module is used to detect the adhesion of ink on the printing material and send the adhesion information to the central control module; the central control module is also used to adjust the ink concentration or spraying data according to the adhesion information.

[0014] Optionally, it also includes a property adaptive adjustment module and an infrared rapid drying module;

[0015] The attribute adaptive adjustment module is connected to both the central control module and the infrared rapid drying module. The attribute adaptive adjustment module is used to control the infrared rapid drying module according to the printing requirements of the central control module to adjust the fluidity and drying speed of the ink.

[0016] Optionally, the concentration detection module includes a light source unit, an optical sensor unit, a data processing unit, and a data output unit;

[0017] The light source unit is used to irradiate the flowing ink;

[0018] The optical sensor unit is used to receive the light signal illuminating the ink by the light source unit, convert the light signal into an electrical signal, and send the electrical signal to the data processing unit.

[0019] The data processing unit is used to convert the electrical signal into ink concentration data using Beer-Lambert's law and send the ink concentration data to the data output unit.

[0020] The data output unit is used to send the ink concentration data to the central control module.

[0021] Optionally, the central control module includes a data receiving unit, a data analysis unit, an instruction generation unit, and an instruction output unit;

[0022] The data receiving unit is used to receive the ink concentration data, spraying data, and adhesion status.

[0023] The data analysis unit is used to determine the ink condition based on the ink concentration data, spraying data, and adhesion.

[0024] The instruction generation unit is used to generate ink control instructions based on the ink concentration.

[0025] The instruction output unit is used to receive the ink control instruction and send the ink control instruction to the jetting control module.

[0026] Optionally, the injection control module includes an instruction receiving unit, an instruction parsing unit, a flow control valve, and an injection execution unit;

[0027] The instruction receiving unit is used to receive the ink control instruction sent by the central control module and send the ink control instruction to the instruction parsing unit;

[0028] The instruction parsing unit is used to determine ink injection data according to the received ink control instruction and send the ink injection data to the flow control valve and the feedback adjustment module;

[0029] The flow control valve is used to receive ink ejection data and control the ejection execution unit to eject ink based on the ink ejection data.

[0030] Optionally, the feedback adjustment module includes a data acquisition unit, a data transmission unit, an adjustment strategy generation unit, and an execution adjustment unit;

[0031] The data acquisition unit is used to receive ink jetting data and send the ink jetting data to the data transmission unit;

[0032] The data transmission unit is used to send ink jetting data to the central control module;

[0033] The adjustment strategy generation unit is used to determine the ink jet adjustment strategy based on the ink control command and ink jet data from the central control module; the ink jet adjustment strategy includes increasing, decreasing, and maintaining the current flow rate;

[0034] The execution adjustment unit is used to receive the ink jetting adjustment strategy from the adjustment strategy generation unit and adjust the ink jetting according to the ink jetting adjustment strategy.

[0035] Optionally, the attribute adaptive adjustment module includes a demand analysis unit, an ink flowability adjustment unit, and an ink drying speed adjustment unit;

[0036] The demand analysis unit is used to analyze the printing demand of the central control module to obtain ink flowability parameters and drying speed parameters; the printing demand includes printing speed, material and printing accuracy.

[0037] The ink flowability adjustment unit is used to determine the adjusted ink flowability according to the ink flowability parameters and send the adjusted ink flowability to the infrared rapid drying module;

[0038] The ink drying speed adjustment unit is used to determine the adjusted ink drying speed according to the drying speed parameters and send the adjusted ink drying speed to the infrared rapid drying module.

[0039] Optionally, the infrared rapid drying module includes an infrared emitting unit, a spray detection unit, a start control unit, and a time control unit;

[0040] The infrared emitting unit is positioned above and on both sides of the jet track; the infrared emitting unit is used to emit infrared rays;

[0041] The ink ejection detection unit is used to detect ink ejection and send a trigger signal to the start control unit;

[0042] The start-up control unit is used to receive trigger signals and control the infrared emitting unit to start.

[0043] The time control unit is used to adjust the irradiation time or intensity of the infrared emitting unit according to the ink type, spray thickness, adjusted ink flowability, and adjusted ink drying speed.

[0044] Optionally, the ink material adhesion testing module includes an adhesion sensor unit, an adhesion data parsing unit, a data feedback transmission unit, and an adjustment strategy suggestion unit;

[0045] The adhesion sensor unit is used to detect the contact between ink and printing material;

[0046] The adhesion data analysis unit receives the contact information transmitted by the adhesion sensor unit and calculates the adhesion of the ink on the printing material based on the contact information.

[0047] The data feedback transmission unit is used to send the adhesion degree to the central control module and the adjustment strategy suggestion unit;

[0048] The adjustment strategy suggestion unit is used to determine an adhesion adjustment strategy based on the adhesion degree.

[0049] Optionally, the adhesion of the ink to the printing material is calculated based on the contact conditions, specifically including:

[0050] The contact data is smoothed using a moving average algorithm to obtain preprocessed data; the contact data refers to pressure data or resistance data.

[0051] The preprocessed data is subjected to linear regression to obtain the adhesion force;

[0052] By performing a nonlinear mapping on the adhesion force, the adhesion degree of the ink on the printing material can be obtained.

[0053] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0054] The concentration detection module of this invention is used to detect ink concentration data and send the ink concentration data to the central control module; the central control module is used to generate ink control commands based on the ink concentration data and send the ink control commands to the jetting control module; the jetting control module is used to control ink jetting according to the ink control commands and send ink jetting data to the feedback adjustment module; the feedback adjustment module is used to receive the ink jetting data and send the jetting data to the central control module; the ink material adhesion testing module is used to detect the adhesion of ink on the printing material and send the adhesion status to the central control module; the central control module is also used to adjust the ink concentration or jetting data according to the adhesion status. By accurately and stably controlling the printing ink through the jetting control module, the feedback adjustment module, and the ink material adhesion testing module, the printing quality is improved. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a schematic diagram of the printing ink control system provided by the present invention. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] The purpose of this invention is to provide a printing ink control system that can accurately and stably control printing ink, thereby improving printing quality.

[0059] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0060] like Figure 1As shown, the present invention provides a printing ink control system, including: a concentration detection module, a central control module, an injection control module, a feedback adjustment module, a property adaptive adjustment module, and an ink material adhesion testing module.

[0061] The concentration detection module is used to detect the ink concentration data of the ink and send the ink concentration data to the central control module.

[0062] The central control module is used to generate ink control commands based on the ink concentration data and send the ink control commands to the jetting control module.

[0063] The ink ejection control module is used to control ink ejection according to the ink control command and send the ink ejection data to the feedback adjustment module. Specifically, it uses a flow control valve to eject the ink.

[0064] The feedback adjustment module is used to receive the ink jetting data and send the jetting data to the central control module to adjust the ink jetting in real time.

[0065] The ink adhesion testing module is used to detect the adhesion of ink to the printing material and send the adhesion data to the central control module. The central control module is also used to adjust the ink concentration or spraying data based on the adhesion data. Specifically, an adhesion sensor is used to detect the ink adhesion data on the printing material in real time and feed this data back to the central control module. After the ink is sprayed onto the printing material, this module immediately uses the adhesion sensor to perform real-time detection and evaluate the ink adhesion. This data not only helps evaluate the printing effect but also provides a reference for the next round of printing. Simultaneously, based on the adhesion data, the central control module adjusts the ink control commands for the next round to adjust the spraying concentration or amount, ensuring high-quality printing results.

[0066] The printing ink control system also includes a property adaptive adjustment module and an infrared rapid drying module.

[0067] The adaptive property adjustment module is connected to both the central control module and the infrared rapid drying module. This module controls the infrared rapid drying module according to the printing requirements of the central control module to adjust the ink's flowability and drying speed. The infrared rapid drying module irradiates the ink immediately after ink ejection, accelerating drying and curing. Once the ejection control module performs ink ejection according to the instructions of the central control module, the infrared rapid drying module is immediately activated, ensuring rapid drying and curing of the ink, reducing the risk of ink flow or diffusion, and thus achieving a clear printing effect. The activation of the infrared rapid drying module complements the ink's adaptive property adjustment module, which adjusts the ink's flowability and drying speed, making infrared irradiation more effective.

[0068] The concentration detection module includes a light source unit, an optical sensor unit, a data processing unit, and a data output unit.

[0069] The light source unit is used to irradiate the flowing ink; the light source unit emits 650 nanometers of red light and irradiates the flowing ink.

[0070] The optical sensor unit is used to receive the light signal illuminating the ink from the light source unit, convert the light signal into an electrical signal, and send the electrical signal to the data processing unit; the optical sensor unit is located opposite the ink flow and is used to receive the penetrating red light and convert the red light into an electrical signal.

[0071] The data processing unit is used to convert the electrical signal into ink concentration data using Beer-Lambert's law and send the ink concentration data to the data output unit; the data processing unit receives the electrical signal and converts it into an ink concentration value using Beer-Lambert's law, the mathematical expression of which is:

[0072] A = ε × c × l.

[0073] Where A is absorbance, i.e., the value measured by the optical sensor unit; ε is the molar absorptivity under 650 nm red light; c is the ink concentration; and l is the distance the red light travels through the ink, i.e., the distance between the light source unit and the optical sensor unit.

[0074] The data output unit is used to send the ink concentration data to the central control module. Specifically, the data output unit receives the ink concentration value from the data processing unit and sends it to the central control module.

[0075] The central control module includes a data receiving unit, a data analysis unit, an instruction generation unit, and an instruction output unit.

[0076] The data receiving unit is used to receive the ink concentration data, spraying data, and adhesion status; the data receiving unit receives the ink concentration data from the concentration detection module in real time.

[0077] The data analysis unit is used to determine the ink condition based on the ink concentration data, spraying data, and adhesion; the ink condition includes whether the ink concentration is within the allowable range. The data analysis unit compares the received ink concentration data with a preset concentration standard range to determine whether the ink concentration is within the allowable range.

[0078] The instruction generation unit is used to generate ink control instructions based on the ink concentration. When the ink concentration exceeds a preset concentration standard range, the instruction generation unit generates an ink control instruction to bring the ink concentration back to the preset range. The specific steps for generating the ink control instruction are as follows:

[0079] a. Set the current ink concentration to C, and the preset concentration standard range is the preset minimum concentration value C. min To the preset maximum concentration C max The adjustment coefficient is k, and the control command is ΔC: when C>C max When diluting the ink, the formula for calculating the control command is:

[0080] ΔC=k×(CC max ).

[0081] When C <C min When the ink concentration needs to be increased, the calculation formula for the control command is as follows:

[0082] ΔC=k×(C min -C).

[0083] b. After receiving the ink control command, the central control module will control the jetting control module or the ink property adaptive adjustment module according to the command value ΔC to adjust the ink jetting or its physical properties in real time to ensure that the ink concentration returns to the preset range.

[0084] Specifically, the demand analysis unit analyzes and interprets the current adjustment demand based on the received values. When it indicates that the concentration needs to be increased, the demand analysis unit will determine the appropriate ink flowability and drying speed to ensure that the higher concentration ink still maintains good performance during the printing process.

[0085] The ink flowability adjustment unit will adjust the ink flowability based on the analysis results of the demand analysis unit. For example, for higher ink concentrations, it is necessary to reduce the ink viscosity to maintain good flowability, which can be achieved by adjusting the ink composition or adding specific diluents.

[0086] Based on the results of the demand analysis unit, the ink drying speed adjustment unit adjusts the ink drying speed. For thicker inks, the drying speed needs to be accelerated to prevent excessive diffusion of the ink on the printing material.

[0087] The instruction output unit is used to receive the ink control instruction and send it to the jetting control module. The instruction output unit sends the ink control instruction generated by the instruction generation unit to the jetting control module to guide it in adjusting the ink jetting.

[0088] The ink jet control module includes an instruction receiving unit, an instruction parsing unit, a flow control valve, and an ink jet execution unit. The instruction receiving unit is responsible for receiving instructions; specifically, it can be an interface of a microprocessor or microcontroller, dedicated to receiving, storing, and transmitting instructions from other modules. The instruction parsing unit parses the instructions from the instruction receiving unit; specifically, it can be an embedded software program running on the microcontroller or digital signal processor (DSP), specifically parsing the received instructions and providing corresponding control signals to the flow control valve. The flow control valve is the physical device that actually controls the ink flow rate; a specific example is an electromagnetic flow control valve, which can precisely adjust the ink flow rate or stop the ink flow to achieve precise control of ink jetting. The ink jet execution unit is responsible for actually jetting the ink; specifically, it can be an inkjet printhead that controls the ink jetting through the flow control valve based on the parsing results from the instruction parsing unit.

[0089] The instruction receiving unit is used to receive ink control instructions sent by the central control module and send the ink control instructions to the instruction parsing unit; the instruction receiving unit includes a data interface for real-time acquisition of ink control instructions from the central control module.

[0090] The instruction parsing unit is used to determine ink injection data according to the received ink control instruction and send the ink injection data to the flow control valve and the feedback adjustment module; the instruction parsing unit determines the ink injection flow rate value according to the received instruction; for example, the instruction clearly indicates that the flow rate value is 20 ml / s.

[0091] The flow control valve receives ink ejection data and controls the ejection execution unit to eject ink based on the data. The flow control valve is connected to the command parsing unit, receives the parsed ejection flow rate value, and then controls the ink ejection speed according to this value. Upon receiving control from the flow control valve, the ejection execution unit begins the actual ink ejection operation.

[0092] The feedback adjustment module includes a data acquisition unit, a data transmission unit, an adjustment strategy generation unit, and an execution adjustment unit.

[0093] The data acquisition unit is used to receive ink jetting data and send the ink jetting data to the data transmission unit; the data acquisition unit is used to obtain real-time ink jetting data from the jetting control module, which shows the jetting flow rate per second.

[0094] The data transmission unit is used to send ink jetting data to the central control module; the data transmission unit uses a communication interface to quickly send the collected real-time jetting data to the central control module.

[0095] The adjustment strategy generation unit is used to determine the ink jet adjustment strategy based on the ink control instructions and ink jetting data from the central control module. The ink jetting adjustment strategy includes increasing, decreasing, and maintaining the current flow rate. The adjustment strategy generation unit determines the ink jetting adjustment strategy using a preset adjustment algorithm based on the instructions fed back from the central control module and the acquired jetting data. The adjustment strategy includes increasing, decreasing, and maintaining the current flow rate.

[0096] The execution adjustment unit receives the ink jetting adjustment strategy from the adjustment strategy generation unit and adjusts the ink jetting according to the strategy. The execution adjustment unit adjusts the flow control valve in the jetting control module in real time according to the strategy generated by the adjustment strategy generation unit to regulate ink jetting.

[0097] The attribute adaptive adjustment module includes a demand analysis unit, an ink flowability adjustment unit, and an ink drying speed adjustment unit.

[0098] The demand analysis unit is used to analyze the printing demand of the central control module to obtain ink flowability parameters and drying speed parameters; the printing demand includes printing speed, material and printing accuracy.

[0099] The ink flowability adjustment unit is used to determine the adjusted ink flowability based on the ink flowability parameters and send the adjusted ink flowability to the infrared rapid drying module; the ink flowability adjustment unit adjusts the ink flowability based on the flowability obtained by the demand analysis unit using the following flowability adjustment formula, the specific formula being:

[0100] F = F0 + k × (F d -F c ).

[0101] Where F is the adjusted ink flowability, F0 is the original ink flowability, and k is the flowability adjustment coefficient. d The ideal liquidity obtained from the demand analysis unit, F c This refers to the current ink fluidity.

[0102] The ink drying speed adjustment unit is used to determine the adjusted ink drying speed based on the drying speed parameters and send the adjusted ink drying speed to the infrared rapid drying module. The ink drying speed adjustment unit adjusts the ink drying speed according to the drying speed obtained from the demand analysis unit using the following drying speed adjustment formula:

[0103] D = D0 + p × (D d -D c ).

[0104] Where D is the adjusted ink drying speed, D0 is the original ink drying speed, and p is the drying speed adjustment coefficient. d The ideal drying rate, D, is obtained from the demand analysis unit. c This is the current ink drying speed.

[0105] Specifically, the ink flowability adjustment unit is responsible for adjusting the viscosity of the ink according to the instructions. When the instructions require an increase in ink concentration, the ink viscosity will be increased by reducing the proportion of thinner or adjusting the proportion of components in the ink formula. Conversely, if it is necessary to reduce the ink concentration, the ink viscosity will be reduced by increasing the proportion of thinner or adjusting the formula accordingly. Adjusting the ink viscosity can affect the flowability and uniformity of ink distribution during the printing process.

[0106] The ink drying speed adjustment unit is responsible for adjusting the ink drying rate. According to the instructions of the central control module, when it is necessary to speed up the drying process, the ink formula will be adjusted, such as increasing the proportion of desiccant or modifying the ink composition to speed up the evaporation or curing speed. This is particularly important for high-speed printing processes to avoid ink spreading or contaminating the paper. Conversely, if it is necessary to slow down the drying speed, such as in high-precision printing, the unit will reduce the proportion of desiccant or adjust the formula to extend the drying time.

[0107] The attribute adaptive adjustment module operates primarily after the feedback adjustment module. This design ensures that the system can perform more advanced attribute adaptive adjustments after implementing basic feedback adjustments, thereby more precisely meeting specific printing requirements. The specific workflow is as follows:

[0108] First, the system monitors injection data in real time through a feedback adjustment module. Once a deviation is detected between the injection data and expectations, this module sends an adjustment signal to the central control module.

[0109] a. Demand Analysis Unit: After receiving the adjustment signal from the feedback adjustment module, the demand analysis unit first analyzes the current printing requirements, which include specific ink property requirements such as flowability and drying speed.

[0110] b. Ink Flowability Adjustment Unit: Based on the analyzed requirements, this unit adjusts the ink flowability to ensure that the ink flowability meets the actual printing needs.

[0111] c. Ink drying speed adjustment unit: In addition, the system will adjust the ink drying speed according to the results of the demand analysis unit to ensure that the printed image quality and speed are optimal.

[0112] Optimizing print quality: Proper ink flow ensures uniformity and accuracy during ink ejection, reducing blurring and color distortion. Simultaneously, an appropriate drying speed ensures rapid ink curing on the material, resulting in a sharp image and minimizing ink diffusion or dissolution.

[0113] Improving printing efficiency: Adjusting the ink drying speed can accommodate different printing speed requirements. For example, high-speed printing may require a faster drying speed, while fine printing may allow for slower drying. Proper adjustments can ensure that maximum printing speed is achieved without sacrificing quality.

[0114] Adapting to different materials: Different printing materials may have different requirements for ink flow and drying speed. Adjusting these parameters can ensure that the ink adapts to various materials, thereby expanding the printer's application range.

[0115] The infrared rapid drying module includes an infrared emitting unit, a spray detection unit, a start control unit, and a time control unit.

[0116] The infrared emitting unit is positioned above and on both sides of the spray track; the infrared emitting unit is used to emit infrared rays; the infrared emitting unit includes multiple infrared emitters, which are distributed above and on both sides of the spray track; the infrared emitters can generate infrared rays in the range of 650 nanometers to 1000 nanometers; infrared rays in this range can penetrate deep into the ink and form a uniform heat source on the surface, ensuring that both the deep layers and the surface of the ink are effectively irradiated, avoiding uneven drying or over-baking.

[0117] The spray detection unit is used to detect ink spraying and send a trigger signal to the start control unit. The spray detection unit uses a photoelectric sensor and deploys the photoelectric sensor in the spraying area. The photoelectric sensor can sense the moment when the ink is sprayed from the spray control module. Specifically, when ink spraying is detected, a trigger signal is immediately sent to the start control unit to ensure instant infrared irradiation.

[0118] The start control unit is used to receive trigger signals to control the infrared emitting unit to start. The start control unit adopts a response circuit to receive and process signals from the spray detection unit within milliseconds. Specifically, when the start control unit receives a signal, it will immediately start the infrared emitting unit to perform infrared irradiation without manual intervention, and the whole process is automated.

[0119] The time control unit is used to adjust the irradiation time or intensity of the infrared emitting unit according to the ink type, spray thickness, adjusted ink flowability, and adjusted ink drying speed. The time control unit includes a database of various ink types and spray thicknesses, and is used to set the duration of infrared irradiation based on the ink type and spray thickness to ensure complete ink drying and curing. Simultaneously, if uneven ink drying or partially undried ink is detected, the irradiation time will be automatically extended or the infrared intensity adjusted.

[0120] The infrared rapid drying module, combined with the above four units, ensures that the ink is dried immediately, uniformly, and efficiently after spraying, thereby achieving high-quality printing results.

[0121] The ink material adhesion testing module includes an adhesion sensor unit, an adhesion data analysis unit, a data feedback transmission unit, and an adjustment strategy suggestion unit.

[0122] The adhesion sensor unit is used to detect the contact between ink and printing material. The adhesion sensor unit is disposed below the jetting area and adjacent to the surface of the printing material. It can detect the contact between ink and printing material in real time. The adhesion sensor is miniaturized to reduce interference with the jetting area and can accurately capture the adhesion of ink.

[0123] The adhesion data analysis unit receives the contact information transmitted by the adhesion sensor unit and calculates the adhesion of the ink on the printing material based on the contact information; the adhesion data analysis unit receives the data from the adhesion sensor unit and calculates the magnitude of the adhesion force of the ink on the printing material.

[0124] The data feedback transmission unit is used to send the adhesion degree to the central control module and the adjustment strategy suggestion unit. When the calculated adhesion degree value exceeds or falls below the standard adhesion degree range, the data feedback transmission unit will generate corresponding adjustment suggestions and send the adhesion degree data and adjustment suggestions to the central control module in real time through the communication interface.

[0125] The adjustment strategy suggestion unit is used to determine an adhesion adjustment strategy based on the adhesion value. Based on the resolved adhesion value, the adjustment strategy suggestion unit provides an adhesion adjustment strategy to the central control module, such as increasing the ink concentration or adjusting the ink composition to optimize the adhesion effect.

[0126] The adhesion of the ink to the printing material is calculated based on the contact conditions, specifically including:

[0127] The contact data is smoothed using a moving average algorithm to obtain preprocessed data; the contact data refers to pressure data or resistance data; specifically, the data from the adhesive sensor unit is preprocessed by using a moving average method to smooth the continuously received pressure or resistance data, eliminating instantaneous noise. The specific formula is as follows:

[0128]

[0129] Among them, P avg P represents the average pressure value. i represents the pressure value received in the i-th instance, and n is the number of consecutive data points considered.

[0130] The preprocessed data is subjected to linear regression to obtain the adhesion force; specifically, based on the preprocessed pressure or resistance data, the adhesion force of the ink is calculated using linear regression. The specific formula for linear regression is as follows:

[0131] F adh =a×P avg +b,

[0132] Among them, F adh Representing adhesion force, a and b are regression coefficients obtained by fitting historical data.

[0133] The adhesion force is nonlinearly mapped to obtain the ink's adhesion to the printing material. Specifically, the calculated adhesion force is converted into an adhesion value ranging from 0 to 100 using a nonlinear mapping function. The specific calculation formula is as follows:

[0134]

[0135] Among them, V adh F represents the adhesion value. max and F min These represent the maximum and minimum values ​​of the adhesive force, respectively.

[0136] The specific steps for adjusting adhesion are as follows: The ink material adhesion testing module first uses an adhesion sensor to measure the adhesion force of the ink on the printing material in real time. Once the adhesion value measured by the adhesion testing module is not within the ideal range (e.g., the adhesion is too high or too low), this data will be sent to the central control module. After receiving the adhesion data, the central control module adjusts the ink formulation or concentration based on this information, usually by adjusting the ink property adaptive adjustment module. For example, if the adhesion is too low, the proportion of certain components in the ink needs to be increased to improve the adhesion force; conversely, if the adhesion is too high, the proportion of components needs to be reduced or other properties of the ink need to be adjusted.

[0137] This invention utilizes an adaptive adjustment module to automatically adjust the ink's flowability and drying speed according to printing requirements. This not only solves the problem of difficult ink flowability and drying speed control in traditional technologies but also ensures optimal printing results under various printing materials and environmental conditions. Through real-time concentration detection and adhesion testing, the system accurately controls the ink concentration and adhesion to printing materials. Compared to traditional control methods based on experience and operator judgment, this system provides more accurate and stable ink control, significantly improving print quality and consistency. The infrared rapid drying module enables rapid ink drying and curing, meeting market demands for fast and efficient printing. This instant-drying characteristic not only improves production efficiency but also reduces print quality issues caused by incomplete ink drying. This invention achieves adaptive ink adjustment and rapid drying, meeting the modern market demand for efficient and high-quality printing.

[0138] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0139] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A printing ink control system, characterized in that, include: Concentration detection module, central control module, spray control module, feedback adjustment module, property adaptive adjustment module, and ink material adhesion testing module; The concentration detection module is used to detect the ink concentration data of the ink and send the ink concentration data to the central control module; The central control module is used to generate ink control commands based on the ink concentration data and send the ink control commands to the jetting control module. The ink injection control module is used to control ink injection according to the ink control command and send ink injection data to the feedback adjustment module; The feedback adjustment module is used to receive the ink jetting data and send the jetting data to the central control module; the feedback adjustment module includes a data acquisition unit, a data transmission unit, an adjustment strategy generation unit, and an execution adjustment unit; the data acquisition unit is used to receive the ink jetting data and send the ink jetting data to the data transmission unit; the data transmission unit is used to send the ink jetting data to the central control module; the adjustment strategy generation unit is used to determine the ink jetting adjustment strategy according to the ink control command and ink jetting data of the central control module; The ink jetting adjustment strategy includes increasing, decreasing, and maintaining the current flow rate; the execution adjustment unit is used to receive the ink jetting adjustment strategy from the adjustment strategy generation unit and adjust the ink jetting according to the ink jetting adjustment strategy; The ink material adhesion testing module is used to detect the adhesion of ink on the printing material and send the adhesion information to the central control module; the central control module is also used to adjust the ink concentration or spraying data according to the adhesion information. It also includes an infrared rapid drying module; the property adaptive adjustment module is connected to the central control module and the infrared rapid drying module respectively; The attribute adaptive adjustment module is used to control the infrared rapid drying module according to the printing requirements of the central control module to adjust the ink flowability and drying speed; the attribute adaptive adjustment module includes a requirement analysis unit, an ink flowability adjustment unit, and an ink drying speed adjustment unit; the requirement analysis unit is used to analyze the printing requirements of the central control module to obtain ink flowability parameters and drying speed parameters; the printing requirements include printing speed, material, and printing accuracy; The ink flowability adjustment unit is used to determine the adjusted ink flowability according to the ink flowability parameter and send the adjusted ink flowability to the infrared rapid drying module; the ink drying speed adjustment unit is used to determine the adjusted ink drying speed according to the drying speed parameter and send the adjusted ink drying speed to the infrared rapid drying module; The infrared rapid drying module includes an infrared emitting unit, a jet detection unit, a start control unit, and a time control unit; the infrared emitting unit is located above and on both sides of the jet track; the infrared emitting unit is used to emit infrared rays; the jet detection unit is used to detect ink jetting and send a trigger signal to the start control unit; The start control unit is used to receive a trigger signal to control the infrared emitting unit to start; the time control unit is used to adjust the irradiation time or intensity of the infrared emitting unit according to the ink type, spray thickness, adjusted ink flowability and adjusted ink drying speed.

2. The printing ink control system according to claim 1, characterized in that, The concentration detection module includes a light source unit, an optical sensor unit, a data processing unit, and a data output unit; The light source unit is used to irradiate the flowing ink; The optical sensor unit is used to receive the light signal illuminating the ink by the light source unit, convert the light signal into an electrical signal, and send the electrical signal to the data processing unit. The data processing unit is used to convert the electrical signal into ink concentration data using Beer-Lambert's law and send the ink concentration data to the data output unit. The data output unit is used to send the ink concentration data to the central control module.

3. The printing ink control system according to claim 1, characterized in that, The central control module includes a data receiving unit, a data analysis unit, an instruction generation unit, and an instruction output unit; The data receiving unit is used to receive the ink concentration data, spraying data, and adhesion status. The data analysis unit is used to determine the ink condition based on the ink concentration data, spraying data, and adhesion. The instruction generation unit is used to generate ink control instructions based on the ink concentration. The instruction output unit is used to receive the ink control instruction and send the ink control instruction to the jetting control module.

4. The printing ink control system according to claim 1, characterized in that, The injection control module includes an instruction receiving unit, an instruction parsing unit, a flow control valve, and an injection execution unit; The instruction receiving unit is used to receive the ink control instruction sent by the central control module and send the ink control instruction to the instruction parsing unit; The instruction parsing unit is used to determine ink injection data according to the received ink control instruction and send the ink injection data to the flow control valve and the feedback adjustment module; The flow control valve is used to receive ink ejection data and control the ejection execution unit to eject ink based on the ink ejection data.

5. The printing ink control system according to claim 1, characterized in that, The ink material adhesion testing module includes an adhesion sensor unit, an adhesion data parsing unit, a data feedback transmission unit, and an adjustment strategy suggestion unit. The adhesion sensor unit is used to detect the contact between ink and printing material; The adhesion data analysis unit receives the contact information transmitted by the adhesion sensor unit and calculates the adhesion of the ink on the printing material based on the contact information. The data feedback transmission unit is used to send the adhesion degree to the central control module and the adjustment strategy suggestion unit; The adjustment strategy suggestion unit is used to determine an adhesion adjustment strategy based on the adhesion degree.

6. The printing ink control system according to claim 5, characterized in that, The adhesion of the ink to the printing material is calculated based on the contact conditions, specifically including: The contact data is smoothed using a moving average algorithm to obtain preprocessed data; the contact data refers to pressure data or resistance data. The preprocessed data is subjected to linear regression to obtain the adhesion force; By performing a nonlinear mapping on the adhesion force, the adhesion degree of the ink on the printing material can be obtained.

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