Method, device, equipment and medium for automatic control of printing parameters of screen printing machine

Abstract

The present application provides a method, device, equipment and medium for automatic control of printing parameters of a screen printing machine. The method belongs to the field of electrical digital data processing, including: analyzing the ink in the screen printing machine to obtain ink parameters, glass powder parameters and toner parameters corresponding to the ink; the ink parameters include at least the ink type and the initial viscosity of the ink, the glass powder parameters include at least the glass powder type and the glass powder ratio, and the toner parameters include at least the toner type and the toner ratio; obtaining environmental parameters corresponding to the screen printing machine; the environmental parameters include at least temperature and humidity; generating control parameters based on the ink parameters, glass powder parameters, toner parameters and environmental information; the screen printing machine control parameters include at least the scraper angle, scraper force, return speed, lowering position, retracting position and downward pressure degree corresponding to the scraper of the screen printing machine; controlling the screen printing machine to print the glass to be printed based on the control parameters to obtain the printed colored glaze glass.

Description

Technical Field

[0001] The invention belongs to the field of electronic digital data processing, and in particular relates to a printing parameter automatic control method, device, equipment and medium of a screen printing machine. Background Art

[0002] With the global emphasis on sustainable development and the popularization of low-carbon building concepts, building-integrated photovoltaic (BIPV) technology has gradually become a key component of future building design. BIPV technology can not only use the building surface area for photovoltaic power generation and reduce energy consumption, but also improve the aesthetics and functionality of the building. As the front panel of BIPV products, high-temperature glaze colored glass has excellent weather resistance and good light transmission performance, which can take into account the aesthetics of the building and the efficiency of photovoltaic modules, so it has broad application prospects in the market.

[0003] However, in the production process of BIPV products, the silk screen printing process is one of the key steps that affects its performance and aesthetics. In the silk screen printing process of high-temperature glaze colored glass, related parameters such as ink and glass powder have a significant impact on the quality of the final product. Especially in high temperature environments, changes in parameters such as ink will cause changes in the viscosity and fluidity of the ink, thereby affecting the printing effect, and then affecting the tempering effect, light transmittance, color difference and weather resistance of the colored glaze glass. These problems are particularly prominent in large-scale production. Any slight change in any parameter may lead to a decrease in product quality and consistency, thereby affecting the performance and reliability of the entire BIPV system.

[0004] At present, the traditional screen printing process mainly relies on manual experience to adjust the printing parameters. This practice is not only inefficient, but also difficult to ensure the consistency of the effect of each screen printing. Especially in the production process, due to the influence of factors such as changes in environmental conditions and ink aging, the manual adjustment method is difficult to respond quickly and accurately, resulting in unstable product quality, rising production costs, and difficulty in meeting the market demand for high-quality BIPV products.

[0005] Therefore, there is an urgent need for an automatic control method for printing parameters of a screen printing machine to solve at least one of the above problems. Summary of the invention

[0006] The present application provides a method, device, equipment and medium for automatically controlling the printing parameters of a screen printer, aiming to solve the problem that the traditional screen printing process mainly relies on manual experience to adjust the printing parameters. This practice is not only inefficient, but also difficult to ensure the consistency of the effect of each screen printing. In particular, during the production process, due to the influence of factors such as changes in environmental conditions and ink aging, manual adjustment methods are difficult to respond quickly and accurately control, resulting in unstable product quality, rising production costs, and difficulty in meeting the market demand for high-quality BIPV products.

[0007] In a first aspect, the present application provides a method for automatically controlling printing parameters of a screen printing machine, the method comprising:

[0008] Get the ink in the screen printer;

[0009] Analyze the ink to obtain ink parameters, glass powder parameters and toner parameters corresponding to the ink; the ink parameters at least include the ink type and the initial viscosity of the ink, the glass powder parameters at least include the glass powder type and the glass powder ratio, and the toner parameters at least include the toner type and the toner ratio;

[0010] Acquire environmental parameters corresponding to the screen printing machine; the environmental parameters at least include temperature and humidity;

[0011] Generate control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental information; the screen printing machine control parameters at least include the scraper angle, scraper force, return speed, lowering position, retracting position and downward pressure degree corresponding to the scraper of the screen printing machine;

[0012] The screen printer is controlled according to the control parameters to print the glass to be printed, so as to obtain the printed colored glaze glass.

[0013] In some embodiments, obtaining the ink parameters corresponding to the ink, the glass powder parameters corresponding to the glass powder, and the toner parameters corresponding to the toner includes: obtaining the chemical composition and physical properties corresponding to the ink, and obtaining the type of ink based on the chemical composition and physical properties; performing viscosity analysis on the ink according to a preset viscometer to obtain the initial viscosity corresponding to the ink; performing fluorescence spectral analysis on the ink to obtain the glass powder parameters; performing chromatographic analysis on the ink to obtain the toner parameters.

[0014] Exemplarily, obtaining the ink type according to the chemical composition and physical properties includes: obtaining a preset ink type library, the ink type library including multiple ink types and preset spectral fingerprints corresponding to the ink types; performing spectral analysis on the ink to obtain spectral information corresponding to the ink; generating a spectral fingerprint corresponding to the ink according to the spectral information, chemical composition and physical properties; and searching in the preset ink type library according to the spectral fingerprint to obtain type information corresponding to the ink.

[0015] In some embodiments, generating control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental parameters includes: inputting the ink parameters, glass powder parameters, toner parameters and environmental parameters into a pre-trained BP neural network model, and the ink parameters, glass powder parameters, toner parameters and environmental parameters sequentially pass through the input layer, hidden layer and output layer of the BP neural network model to output the control parameters.

[0016] Exemplarily, before the ink parameters, glass powder parameters, toner parameters and environmental parameters are input into the pre-trained BP neural network model, the method also includes: obtaining the model information of the screen printing machine; obtaining the historical ink information and historical control information corresponding to the model information; the historical ink information at least includes the historical ink parameters, historical toner parameters, historical glass powder parameters and historical environmental parameters, and the historical control information at least includes the historical scraper angle, historical scraper force, historical return speed, historical lowering position, historical retracting position and historical downward pressure degree corresponding to the scraper; generating training samples according to the historical ink information and the corresponding historical control information; completing the iterative training of the BP neural network model according to the maximum number of training times, the preset error threshold and the initial learning rate.

[0017] In some embodiments, the control parameters are generated according to the ink parameters, glass powder parameters, toner parameters and environmental parameters, including: obtaining an initial scraper angle of the screen printer, and generating the scraper angle according to the initial scraper angle, initial ink viscosity and temperature; obtaining an initial scraper force of the screen printer, and generating the scraper force according to the initial scraper force, initial ink viscosity and the toner ratio; obtaining the molecular complexity corresponding to the ink according to the ink type and obtaining the initial knife return speed of the screen printer, and generating the knife return speed according to the initial knife return speed, the molecular complexity and the humidity; obtaining the initial knife lowering position of the screen printer, and generating the knife lowering position according to the initial knife lowering position, the glass powder ratio and the toner ratio; obtaining the initial knife retracting position of the screen printer, and obtaining the knife retracting position according to the initial knife retracting position, temperature and molecular complexity; obtaining the initial downward pressure degree of the screen printer, and obtaining the downward pressure degree according to the initial downward pressure degree, initial ink viscosity and glass powder ratio.

[0018] Exemplarily, the obtaining of the initial scraper angle of the screen printer and generating the scraper angle according to the initial scraper angle, initial ink viscosity and temperature include: obtaining the standard viscosity and standard temperature corresponding to the ink according to the ink type; generating the scraper angle according to the standard viscosity, standard temperature, initial scraper angle, initial ink viscosity and temperature; the expression corresponding to the scraper angle includes:

[0019] ;

[0020] in, is the scraper angle, is the initial scraper angle, is the standard viscosity, The standard temperature is is the initial ink viscosity, For the temperature, and is the preset adjustment factor.

[0021] For example, assume that in the production process of BIPV products, it is necessary to generate the control parameters of the screen printing machine:

[0022] Initial scraper angle: 30°; Initial ink viscosity: 1000 cP; Current temperature: 25°C; Initial scraper force: 50N; Toner ratio: 5%; Ink type: "Acrylic ink"; Initial return speed: 120 mm / s; Current humidity: 50%; Initial lower blade position: 10 mm; Glass powder ratio: 10%; Initial retracting position: 150 mm; Initial downward pressure: 3 mm. Generate control parameters: Scraper angle: Adjusted according to initial scraper angle, initial ink viscosity and current temperature. Scraper force: Adjusted according to initial scraper force, initial ink viscosity and toner ratio. Return speed: Adjusted according to the molecular complexity of the ink type, initial return speed and current humidity. Lower blade position: Adjusted according to initial lower blade position, glass powder ratio and toner ratio. Retracting position: Adjusted according to initial retracting position, current temperature and molecular complexity. Downward pressure: Adjusted according to initial downward pressure, initial ink viscosity and glass powder ratio.

[0023] Exemplarily, the method of obtaining the molecular complexity corresponding to the ink and the initial return speed of the screen printer according to the ink type, and generating the return speed according to the initial return speed, the molecular complexity and the humidity, includes: extracting features of the ink type to obtain Raman spectral features corresponding to each molecule in the ink type; generating the molecular complexity according to multiple Raman spectral features; obtaining the standard humidity corresponding to the ink type; generating the return speed according to the standard humidity, the initial return speed, the molecular complexity and the humidity; the expression of the return speed includes:

[0024] ;

[0025] in, is the return speed, is the initial return speed, The standard humidity is is the molecular complexity, For the temperature, and is the preset adjustment factor.

[0026] In some embodiments, controlling the screen printer to print on the glass to be printed according to the control parameters includes: obtaining the current number of printings of the screen printer; generating the current viscosity of the ink according to the current number of printings and the control parameters, the initial viscosity of the ink, temperature and humidity; updating the control parameters according to the current viscosity of the ink, so as to control the screen printer to print on the glass to be printed according to the updated control parameters.

[0027] Exemplarily, obtaining the current number of prints of the screen printer includes: setting a displacement sensor at the scraper position of the screen printer; obtaining displacement change information measured by the displacement sensor during the printing process of the screen printer; and obtaining the current number of prints of the screen printer by analyzing the displacement change information and the control parameters.

[0028] In a second aspect, the present application provides a printing parameter automatic control device for a screen printing machine, the device comprising:

[0029] A first acquisition unit, used for acquiring ink in the screen printing machine;

[0030] A second acquisition unit is used to analyze the ink, analyze the ink, and acquire ink parameters, glass powder parameters, and toner parameters corresponding to the ink; the ink parameters at least include ink type and ink initial viscosity, the glass powder parameters at least include glass powder type and glass powder ratio, and the toner parameters at least include toner type and toner ratio;

[0031] A third acquisition unit is used to acquire environmental parameters corresponding to the screen printing machine; the environmental parameters at least include temperature and humidity;

[0032] A parameter generating unit, used for generating control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental information; the screen printing machine control parameters at least include a scraper angle, a scraper force, a return speed, a lowering position, a retracting position and a downward pressure degree corresponding to the scraper of the screen printing machine;

[0033] The printing completion unit is used to control the screen printing machine to print the glass to be printed according to the control parameters to obtain the printed colored glaze glass.

[0034] In a third aspect, the present application further provides a computer device, including:

[0035] Memory and processor;

[0036] The memory is used to store computer programs;

[0037] The processor is used to execute the computer program and implement the steps of the method for automatically controlling printing parameters of a screen printing machine as described in the first aspect above when executing the computer program.

[0038] In a fourth aspect, the present application further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, enables the processor to implement the steps of the method for automatically controlling printing parameters of a screen printing machine as described in the first aspect above.

[0039] The embodiment of the present application provides a method, device, equipment and medium for automatically controlling the printing parameters of a screen printing machine, and the method is intended to improve the efficiency and consistency of the screen printing process. The method mainly includes: obtaining the ink currently used from the screen printing machine. Performing a detailed analysis of the ink to obtain ink parameters, glass powder parameters and toner parameters. The ink parameters include the type of ink and the initial viscosity of the ink. The glass powder parameters include the type of glass powder and the ratio of glass powder. The toner parameters include the type of toner and the ratio of toner. Obtaining the parameters of the environment where the screen printing machine is located, including at least temperature and humidity. Generate the control parameters of the screen printing machine based on the ink parameters, glass powder parameters, toner parameters and environmental parameters. The control parameters include scraper angle, scraper force, return speed, lower knife position, retract knife position and downward pressure degree. According to the generated control parameters, the screen printing machine is controlled to print on the glass, and finally the printed colored glaze glass is obtained.

[0040] The method provided further includes the following beneficial effects:

[0041] 1. Improve printing efficiency: The traditional screen printing process relies on manual experience to adjust parameters, which is inefficient. The automated control method can quickly generate and adjust printing parameters, significantly improving printing efficiency.

[0042] 2. Ensure the consistency of printing effect: Manual adjustment of parameters is easily affected by subjective factors, resulting in inconsistent printing effects. The automated control method generates consistent control parameters by accurately analyzing ink and environmental parameters to ensure the consistency of each printing effect.

[0043] 3. Adapt to environmental changes: Changes in environmental conditions (such as temperature and humidity) will affect the printing effect. The automated control system obtains environmental parameters in real time and adjusts the control parameters accordingly. It can quickly respond to environmental changes and ensure the stability of printing quality.

[0044] 4. Reduce production costs: Manual adjustment of parameters is not only inefficient, but also prone to errors, leading to increased scrap rates and rising production costs. Automated control methods reduce the impact of human factors, reduce scrap rates, and thus effectively reduce production costs.

[0045] 5. Meet the demand for high-quality BIPV products: Building integrated photovoltaic (BIPV) products have high requirements for printing technology, and traditional manual methods are difficult to meet their high-quality requirements. The automated control method can produce high-quality glazed glass by precisely controlling printing parameters, better meeting the market demand for BIPV products.

[0046] In summary, this method solves the shortcomings of traditional silk-screen printing process that relies on manual experience by automatically controlling the printing parameters of the silk-screen printer, improves efficiency, stability and quality, reduces production costs, and is particularly suitable for the production of high-quality BIPV products.

[0047] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] Figure 1 This is a schematic flow chart of the steps of a method for automatically controlling printing parameters of a screen printing machine provided in one embodiment of the present application;

[0050] Figure 2 It is a schematic diagram of a scraper angle training result of a BP neural network model provided in one embodiment of the present application;

[0051] Figure 3 It is a schematic diagram of a scraper force training result of a BP neural network model provided in an embodiment of the present application;

[0052] Figure 4 It is a schematic diagram of a knife return speed training result of a BP neural network model provided in an embodiment of the present application;

[0053] Figure 5 It is a schematic diagram of a knife position training result of a BP neural network model provided in one embodiment of the present application;

[0054] Figure 6 It is a schematic diagram of a knife retracting position training result of a BP neural network model provided in one embodiment of the present application;

[0055] Figure 7 It is a schematic diagram of a pressure degree training result of a BP neural network model provided in one embodiment of the present application;

[0056] Figure 8It is a structural schematic diagram of a printing parameter automatic control device provided in one embodiment of the present application;

[0057] Fig. 9 It is a schematic block diagram of the structure of a computer device provided in one embodiment of the present application.

[0058] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0060] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0061] It should be understood that, in order to facilitate the clear description of the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not necessarily limit the difference.

[0062] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0063] It should also be understood that the term “and / or” used in the specification and appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0064] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0065] With the global emphasis on sustainable development and the popularization of low-carbon building concepts, building-integrated photovoltaic (BIPV) technology has gradually become a key component of future building design. BIPV technology can not only use the building surface area for photovoltaic power generation and reduce energy consumption, but also improve the aesthetics and functionality of the building. As the front panel of BIPV products, high-temperature glaze colored glass has excellent weather resistance and good light transmission performance, which can take into account the aesthetics of the building and the efficiency of photovoltaic modules, so it has broad application prospects in the market.

[0066] However, in the production process of BIPV products, the silk screen printing process is one of the key steps that affects its performance and aesthetics. In the silk screen printing process of high-temperature glaze colored glass, related parameters such as ink and glass powder have a significant impact on the quality of the final product. Especially in high temperature environments, changes in parameters such as ink will cause changes in the viscosity and fluidity of the ink, thereby affecting the printing effect, and then affecting the tempering effect, light transmittance, color difference and weather resistance of the colored glaze glass. These problems are particularly prominent in large-scale production. Any slight change in any parameter may lead to a decrease in product quality and consistency, thereby affecting the performance and reliability of the entire BIPV system.

[0067] At present, the traditional screen printing process mainly relies on manual experience to adjust the printing parameters. This practice is not only inefficient, but also difficult to ensure the consistency of the effect of each screen printing. Especially in the production process, due to the influence of factors such as changes in environmental conditions and ink aging, the manual adjustment method is difficult to respond quickly and accurately, resulting in unstable product quality, rising production costs, and difficulty in meeting the market demand for high-quality BIPV products.

[0068] Therefore, there is an urgent need for an automatic control method for printing parameters of a screen printing machine to solve at least one of the above problems.

[0069] To solve the above problems, please refer to Figure 1 , Figure 1 This is a schematic flow chart of a method for automatically controlling printing parameters of a screen printer provided in an embodiment of the present application. The method for automatically controlling printing parameters of a screen printer can be implemented by a computer device, which can be deployed on a single server or a server cluster. It can also be deployed on a handheld terminal, a laptop computer, a wearable device, or a robot.

[0070] Specifically, Figure 1 As shown, the provided method for automatically controlling printing parameters of a screen printer includes steps S101 to S105. The details are as follows:

[0071] Step S101: Obtain ink from the screen printing machine.

[0072] Specifically, the ink samples used in the screen printer are obtained through sensors or manual methods. For example, an ink extraction device is used to automatically extract a certain amount of ink samples from the screen printer. Ensure that the obtained ink samples are accurate and provide a reliable basis for subsequent analysis.

[0073] Step S102. Analyze the ink to obtain ink parameters, glass powder parameters and toner parameters corresponding to the ink; the ink parameters at least include the ink type and the initial viscosity of the ink, the glass powder parameters at least include the glass powder type and the glass powder ratio, and the toner parameters at least include the toner type and the toner ratio.

[0074] Specifically, the ink analysis equipment is used to analyze the acquired ink samples in detail to extract various characteristic parameters of the ink. These parameters include the type of ink, initial viscosity, the type and proportion of glass powder, and the type and proportion of toner. For example, an ink analyzer (such as a viscometer, spectrometer, etc.) is used to test the ink samples and output a detailed parameter report.

[0075] By accurately analyzing the characteristic parameters of the ink, we can better understand the state of the ink and provide a scientific basis for subsequent parameter adjustments.

[0076] Step S103: Obtain environmental parameters corresponding to the screen printing machine; the environmental parameters at least include temperature and humidity.

[0077] Specifically, environmental sensors (such as temperature sensors and humidity sensors) are used to obtain parameters such as temperature and humidity in the working environment of the screen printer. For example, temperature and humidity sensors are installed in the working area of ​​the screen printer to monitor and record environmental parameters in real time. Environmental parameters have a significant impact on the performance of ink. Obtaining accurate environmental parameters helps adjust printing parameters and improve the consistency and stability of printing effects.

[0078] Step S104. Generate control parameters according to ink parameters, glass powder parameters, toner parameters and environmental information; the screen printing machine control parameters at least include the scraper angle, scraper force, return speed, lowering position, retracting position and downward pressure degree corresponding to the scraper of the screen printing machine.

[0079] Specifically, the parameters obtained in step S102 and step S103 are input into the computer device, and the control parameters of the screen printer are generated through the preset algorithm model. These control parameters include scraper angle, scraper force, return speed, lowering position, retracting position and downward pressure, etc. The machine learning algorithm is used to model the ink parameters, glass powder parameters, toner parameters and environmental parameters to generate the most suitable control parameters for the current conditions. By automatically generating control parameters, the printing process can be adjusted in real time, the printing efficiency and product quality can be improved, and the errors caused by manual intervention can be reduced.

[0080] Step S105: Control the screen printer to print the glass to be printed according to the control parameters to obtain the printed colored glaze glass.

[0081] Specifically, the control parameters generated in step S104 are transmitted to the control system of the screen printer, and the printing operation is performed by automatically controlling the various components of the screen printer (such as scrapers, screens, etc.). After receiving the control parameters, the screen printer control system adjusts the angle and strength of the scraper, optimizes the return speed, and ensures accurate control of the printing process. The automated control of the printing process is achieved, the consistency and stability of the printing effect are improved, the production cost is reduced, and the market demand for high-quality BIPV products is met.

[0082] The operation process of steps S101 to S105 is described through a specific embodiment. Assume that in the production process of BIPV products, a screen printer needs to print a layer of colored glaze glass. The specific steps are as follows:

[0083] 1. Get ink: Use the ink extraction device to extract a certain amount of ink sample from the screen printing machine.

[0084] 2. Ink analysis: The ink sample was sent to the ink analyzer, and the test results showed that the ink type was "acrylic ink", the initial viscosity was "1000 cP", the glass powder type was "borosilicate glass powder", the glass powder ratio was "10%", the color powder type was "titanium dioxide", and the color powder ratio was "5%".

[0085] 3. Environmental parameter detection: The environmental sensor installed in the working area of ​​the screen printer monitors the current temperature as "25°C" and humidity as "50%" in real time.

[0086] 4. Generate control parameters: Input the above ink parameters and environmental parameters into the pre-trained machine learning model to calculate the control parameters that best suit the current conditions: scraper angle is "22°", scraper force is "30 N", return speed is "100 mm / s", lower blade position is "5 mm", retract blade position is "150 mm", and downward pressure is "2 mm".

[0087] 5. Control printing: After receiving the above control parameters, the screen printing machine control system automatically adjusts the various parameters of the scraper to perform precise printing, and finally obtains high-quality colored glaze glass.

[0088] In some embodiments, obtaining the ink parameters corresponding to the ink, the glass powder parameters corresponding to the glass powder, and the toner parameters corresponding to the toner includes: obtaining the chemical composition and physical properties corresponding to the ink, and obtaining the type of ink based on the chemical composition and physical properties; performing viscosity analysis on the ink according to a preset viscometer to obtain the initial viscosity corresponding to the ink; performing fluorescence spectral analysis on the ink to obtain the glass powder parameters; performing chromatographic analysis on the ink to obtain the toner parameters.

[0089] The chemical composition (such as solvents, resins, additives, etc.) and physical properties (such as viscosity, density, surface tension, etc.) of the ink are obtained through chemical analysis methods and physical property testing equipment (such as viscometers, atomic absorption spectrometers, etc.). Obtain the type of ink based on the chemical composition and physical properties: Determine the specific type of ink (such as acrylic ink, UV curing ink, etc.) by combining the chemical composition and physical property information. Perform viscosity analysis on the ink according to the preset viscometer to obtain the corresponding initial viscosity of the ink: Use the viscometer to test the ink sample and obtain its initial viscosity value. Perform fluorescence spectral analysis on the ink to obtain glass powder parameters: Use a fluorescence spectrometer to analyze the ink sample and extract the type and proportion information of the glass powder. Perform chromatographic analysis on the ink to obtain toner parameters: Analyze the ink sample through a chromatographic analyzer to extract the type and proportion information of the toner.

[0090] Through a variety of analysis methods, the chemical composition and physical properties of inks can be fully and accurately obtained, providing reliable data support for subsequent parameter adjustments. Using modern analytical equipment (such as viscometers, fluorescence spectrometers, chromatographs, etc.), the analysis of inks can be completed quickly to improve production efficiency. Automated analysis reduces errors caused by manual operations and ensures data accuracy and consistency. It can be applied to different types of inks and has high versatility and flexibility.

[0091] For example, a certain amount of ink sample is extracted from a screen printer. Chemical analysis methods and physical property detection equipment (such as a viscometer, atomic absorption spectrometer, etc.) are used to obtain the chemical composition (such as solvents, resins, additives, etc.) and physical properties (such as viscosity, density, surface tension, etc.) of the ink. The ink sample is tested using a viscometer, and its initial viscosity is "1000 cP". The ink sample is analyzed using a fluorescence spectrometer, and the type of glass powder extracted is "borosilicate glass powder" and the proportion is "10%". The ink sample is analyzed using a chromatographic analyzer, and the type of color powder extracted is "titanium dioxide" and the proportion is "5%".

[0092] Exemplarily, obtaining the ink type according to the chemical composition and physical properties includes: obtaining a preset ink type library, the ink type library including multiple ink types and preset spectral fingerprints corresponding to the ink types; performing spectral analysis on the ink to obtain spectral information corresponding to the ink; generating a spectral fingerprint corresponding to the ink according to the spectral information, chemical composition and physical properties; and searching in the preset ink type library according to the spectral fingerprint to obtain type information corresponding to the ink.

[0093] Establish a database containing multiple ink types and their corresponding preset spectral fingerprints. Generate the spectral fingerprint of the ink by performing spectral analysis on the ink and combining its chemical composition and physical properties. Search the preset ink type library based on the spectral fingerprint to obtain the type information corresponding to the ink: compare the generated spectral fingerprint with the preset spectral fingerprint in the ink type library to determine the specific type of the ink.

[0094] By comparing spectral fingerprints, ink types can be identified with high precision, reducing the risk of misidentification. The establishment of a spectral fingerprint database makes the ink type identification process more efficient and shortens the identification time. Combining spectral information, chemical composition and physical properties to generate spectral fingerprints makes the data richer and more comprehensive, improving the reliability of identification. The preset ink type library can be continuously updated and expanded to adapt to more types of inks, with high flexibility.

[0095] In some embodiments, generating control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental parameters includes: inputting the ink parameters, glass powder parameters, toner parameters and environmental parameters into a pre-trained BP neural network model, and the ink parameters, glass powder parameters, toner parameters and environmental parameters sequentially pass through the input layer, hidden layer and output layer of the BP neural network model to output the control parameters.

[0096] The ink parameters, glass powder parameters, toner parameters and environmental parameters obtained from steps S102 and S103 are used as input data and input into a pre-trained BP neural network model. The input data is calculated and processed through the multi-layer structure of the neural network, and finally the control parameters are generated in the output layer. The schematic diagram of the comparison of the prediction results of the training set and the test set for the scraper angle, scraper force, return speed, lowering position, retracting position and downward pressure degree output by the BP neural network model is shown in Figures 2 to 7 As shown (where Figure 2 (a) is a schematic diagram of the comparison of prediction results of a scraper angle training set of a BP neural network model provided in one embodiment of the present application; Figure 2(b) is a schematic diagram of a comparison of prediction results of a scraper angle test set of a BP neural network model provided in an embodiment of the present application; Figure 3 (a) is a schematic diagram of the comparison of prediction results of a scraper force training set of a BP neural network model provided in an embodiment of the present application; Figure 3 (b) is a schematic diagram of comparison of prediction results of a scraper force test set of a BP neural network model provided in an embodiment of the present application; Figure 4 (a) is a schematic diagram of the comparison of prediction results of a BP neural network model for a knife return speed training set according to an embodiment of the present application; Figure 4 (b) is a schematic diagram of comparison of prediction results of a return speed test set of a BP neural network model provided in an embodiment of the present application; Figure 5 (a) is a schematic diagram of the comparison of prediction results of the knife position training set of a BP neural network model provided in an embodiment of the present application; Figure 5 (b) is a schematic diagram of comparison of prediction results of a cutter position test set of a BP neural network model provided in an embodiment of the present application; Figure 6 (a) is a schematic diagram of the comparison of prediction results of a knife retracting position training set of a BP neural network model provided in an embodiment of the present application; Figure 6 (b) is a schematic diagram of comparison of prediction results of a knife retracting position test set of a BP neural network model provided in an embodiment of the present application; Figure 7 (a) is a schematic diagram of a comparison of prediction results of a pressure degree training set of a BP neural network model provided in an embodiment of the present application; Figure 7 (b) is a schematic diagram of the comparison of the prediction results of the pressure degree test set of a BP neural network model provided in one embodiment of the present application). The BP neural network model can be used to intelligently adjust the printing parameters to improve the accuracy and adaptability of the parameter adjustment. The neural network model can process the input parameters in real time, quickly generate control parameters, and adapt to changes in the production process. The automatic generation of control parameters reduces manual intervention and improves production efficiency and quality stability. By continuously accumulating and optimizing the model, the accuracy and reliability of parameter generation can be gradually improved.

[0097] For example, assume that in the production process of BIPV products, it is necessary to generate the control parameters of the screen printer through the BP neural network model: the current ink parameters, glass powder parameters, toner parameters and environmental parameters are obtained from steps S102 and S103, for example:

[0098] Ink parameters: The ink type is "acrylic ink" and the initial viscosity is "1000 cP".

[0099] Glass powder parameters: The type of glass powder is "borosilicate glass powder" and the proportion is "10%".

[0100] Toner parameters: Toner type is "titanium dioxide" and the proportion is "5%".

[0101] Environmental parameters: temperature is "25°C" and humidity is "50%".

[0102] The above parameters are input into the pre-trained BP neural network model. The model generates control parameters through calculations of the input layer, hidden layer, and output layer, for example:

[0103] The scraper angle is "22°".

[0104] The scraper force is "30 N".

[0105] The return speed is "100 mm / s".

[0106] The lower knife position is "5 mm".

[0107] The knife retraction position is "150 mm".

[0108] The pressing degree is "2 mm".

[0109] Exemplarily, before the ink parameters, glass powder parameters, toner parameters and environmental parameters are input into the pre-trained BP neural network model, the method also includes: obtaining the model information of the screen printing machine; obtaining the historical ink information and historical control information corresponding to the model information; the historical ink information at least includes the historical ink parameters, historical toner parameters, historical glass powder parameters and historical environmental parameters, and the historical control information at least includes the historical scraper angle, historical scraper force, historical return speed, historical lowering position, historical retracting position and historical downward pressure degree corresponding to the scraper; generating training samples according to the historical ink information and the corresponding historical control information; completing the iterative training of the BP neural network model according to the maximum number of training times, the preset error threshold and the initial learning rate.

[0110] By recording the model of the screen printer, the control parameters of the same model can be selected to improve the pertinence of the model. Obtain the historical ink information and historical control information corresponding to the model information: Obtain the historical ink parameters and corresponding control parameters of the screen printer of this model from the database. These historical data include ink parameters, glass powder parameters, toner parameters and environmental parameters, as well as scraper angle, scraper strength, return speed, lower knife position, retract knife position and downward pressure degree. Organize the historical data into training samples for training the BP neural network model. Set the training parameters of the model (such as the maximum number of training times, preset error threshold and initial learning rate), and optimize the model through multiple rounds of iterative training so that it can generate control parameters more accurately.

[0111] By generating training samples from historical data and conducting multiple rounds of iterative training, the prediction accuracy of the BP neural network model can be significantly improved. Different models of screen printing machines have different historical data, so the model can be trained in a targeted manner to improve the adaptability and accuracy of the model. The accumulation of historical data enables the model to continuously learn and optimize, gradually improving its performance. By pre-training the model, the number of trial and error can be reduced in actual production, reducing production costs. The model can be updated and optimized in real time to ensure that parameter adjustments in the production process are more scientific and efficient.

[0112] It should be noted that, in some embodiments, the model information of the screen printer is obtained by recording the model information of the screen printer, such as "NO. A".

[0113] The historical ink information and historical control information of the "NO. A" screen printer are obtained from the database, for example: historical ink parameters: when the initial viscosity is "1000 cP", the scraper angle is "22°"; historical glass powder parameters: when the glass powder ratio is "10%", the scraper force is "30 N"; historical toner parameters: when the toner ratio is "5%, the return speed is "100 mm / s"; historical environmental parameters: when the temperature is "25°C" and the humidity is "50%", the lower knife position is "5 mm", the retracted knife position is "150 mm", and the downward pressure is "2 mm". The above historical data are organized into training samples. The maximum number of training times is set to 1000 times, the preset error threshold is 0.01, and the initial learning rate is 0.1. The BP neural network model is optimized through multiple rounds of iterative training. After the training is completed, the optimized BP neural network model is used to generate the parameters of step S104 to ensure that the generated control parameters are more accurate and reliable.

[0114] In some embodiments, the control parameters are generated according to the ink parameters, glass powder parameters, toner parameters and environmental parameters, including: obtaining an initial scraper angle of the screen printer, and generating the scraper angle according to the initial scraper angle, initial ink viscosity and temperature; obtaining an initial scraper force of the screen printer, and generating the scraper force according to the initial scraper force, initial ink viscosity and the toner ratio; obtaining the molecular complexity corresponding to the ink according to the ink type and obtaining the initial knife return speed of the screen printer, and generating the knife return speed according to the initial knife return speed, the molecular complexity and the humidity; obtaining the initial knife lowering position of the screen printer, and generating the knife lowering position according to the initial knife lowering position, the glass powder ratio and the toner ratio; obtaining the initial knife retracting position of the screen printer, and obtaining the knife retracting position according to the initial knife retracting position, temperature and molecular complexity; obtaining the initial downward pressure degree of the screen printer, and obtaining the downward pressure degree according to the initial downward pressure degree, initial ink viscosity and glass powder ratio.

[0115] The ink type is extracted from the ink parameters obtained in step S102. According to the ink type, the molecular complexity of the ink is obtained by a feature extraction method. The currently set return speed is obtained from the control system or database of the screen printer. The current humidity is extracted from the environmental parameters obtained in step S103. According to the initial return speed, the molecular complexity and the current humidity, the return speed is adjusted by a preset algorithm.

[0116] Through dynamic adjustment based on initial parameters and environmental conditions, the generated control parameters are more accurate and can better adapt to the current production environment. Real-time acquisition and processing of current environmental parameters and ink characteristics, rapid generation of new control parameters, and improved response speed. Automated parameter adjustment reduces manual intervention, improves production efficiency and quality stability. It can generate the most suitable control parameters according to different ink types and environmental conditions, with high adaptability and flexibility.

[0117] Exemplarily, the obtaining of the initial scraper angle of the screen printer and generating the scraper angle according to the initial scraper angle, initial ink viscosity and temperature include: obtaining the standard viscosity and standard temperature corresponding to the ink according to the ink type; generating the scraper angle according to the standard viscosity, standard temperature, initial scraper angle, initial ink viscosity and temperature; the expression corresponding to the scraper angle includes:

[0118] ;

[0119] in, is the scraper angle, is the initial scraper angle, is the standard viscosity, The standard temperature is is the initial ink viscosity, For the temperature, and is the preset adjustment factor.

[0120] By comparing the standard viscosity and standard temperature, the scraper angle can be accurately adjusted to ensure the consistency of the printing effect. The adjustment coefficient in the expression can be optimized according to the experimental data, making the calculation result more scientific and reliable. By considering the change of the current temperature in real time, the scraper angle can be dynamically adjusted to improve the adaptability to environmental changes.

[0121] Exemplarily, the method of obtaining the molecular complexity corresponding to the ink and the initial return speed of the screen printer according to the ink type, and generating the return speed according to the initial return speed, the molecular complexity and the humidity, includes: extracting features of the ink type to obtain Raman spectral features corresponding to each molecule in the ink type; generating the molecular complexity according to multiple Raman spectral features; obtaining the standard humidity corresponding to the ink type; generating the return speed according to the standard humidity, the initial return speed, the molecular complexity and the humidity; the expression of the return speed includes:

[0122] ;

[0123] in, is the return speed, is the initial return speed, The standard humidity is is the molecular complexity, For the temperature, and is the preset adjustment factor.

[0124] Through Raman spectral feature extraction and molecular complexity generation, the return speed is accurately calculated to ensure the stability and consistency of the printing process. The current humidity changes are taken into account in real time, and the return speed is dynamically adjusted to improve the adaptability to environmental changes. Adjustment coefficient and The model can be optimized based on experimental data to make the prediction more scientific and accurate. The most appropriate return speed can be generated by comprehensively considering the molecular complexity of the ink type and the current humidity to improve the printing effect.

[0125] In some embodiments, controlling the screen printer to print on the glass to be printed according to the control parameters includes: obtaining the current number of printings of the screen printer; generating the current viscosity of the ink according to the current number of printings and the control parameters, the initial viscosity of the ink, temperature and humidity; updating the control parameters according to the current viscosity of the ink, so as to control the screen printer to print on the glass to be printed according to the updated control parameters.

[0126] By dynamically adjusting the viscosity of the ink according to the current number of prints and current environmental conditions, the stability and consistency of the printing process are ensured. By updating the control parameters in real time, the screen printer can better adapt to changes in the production process and improve the printing quality. Accurately adjusting and updating the control parameters can reduce printing defects caused by changes in ink viscosity and reduce the scrap rate. Dynamic adjustment and real-time optimization reduce the number of trial and error and improve production efficiency.

[0127] Exemplarily, obtaining the current number of prints of the screen printer includes: setting a displacement sensor at the scraper position of the screen printer; obtaining displacement change information measured by the displacement sensor during the printing process of the screen printer; and obtaining the current number of prints of the screen printer by analyzing the displacement change information and the control parameters.

[0128] By directly monitoring the displacement change of the scraper through the displacement sensor, the current number of prints can be obtained with high precision, reducing the error of manual counting. The displacement sensor can monitor the printing process in real time, ensure the real-time nature of the data, and improve the timeliness and accuracy of control. Combined with the control parameters for analysis, the number of prints can be judged more accurately and more data support can be provided. Through automated monitoring and analysis, the reliability and stability of the entire system can be improved, and production problems caused by counting errors can be reduced.

[0129] The method provided in the embodiment of the present application is intended to improve the efficiency and consistency of the silk screen printing process. The method mainly includes: obtaining the ink currently used from the silk screen printing machine. Performing a detailed analysis of the ink to obtain ink parameters, glass powder parameters and toner parameters. Ink parameters include ink type and ink initial viscosity. Glass powder parameters include glass powder type and glass powder ratio. Toner parameters include toner type and toner ratio. Obtaining parameters of the environment where the silk screen printing machine is located, including at least temperature and humidity. Generate control parameters of the silk screen printing machine based on ink parameters, glass powder parameters, toner parameters and environmental parameters. Control parameters include scraper angle, scraper force, return speed, lower knife position, retract knife position and downward pressure. According to the generated control parameters, control the silk screen printing machine to print on the glass, and finally obtain the printed colored glaze glass.

[0130] The method provided further includes the following beneficial effects:

[0131] 1. Improve printing efficiency: The traditional screen printing process relies on manual experience to adjust parameters, which is inefficient. The automated control method can quickly generate and adjust printing parameters, significantly improving printing efficiency.

[0132] 2. Ensure the consistency of printing effect: Manual adjustment of parameters is easily affected by subjective factors, resulting in inconsistent printing effects. The automated control method generates consistent control parameters by accurately analyzing ink and environmental parameters to ensure the consistency of each printing effect.

[0133] 3. Adapt to environmental changes: Changes in environmental conditions (such as temperature and humidity) will affect the printing effect. The automated control system obtains environmental parameters in real time and adjusts the control parameters accordingly. It can quickly respond to environmental changes and ensure the stability of printing quality.

[0134] 4. Reduce production costs: Manual adjustment of parameters is not only inefficient, but also prone to errors, leading to increased scrap rates and rising production costs. Automated control methods reduce the impact of human factors, reduce scrap rates, and thus effectively reduce production costs.

[0135] 5. Meet the demand for high-quality BIPV products: Building integrated photovoltaic (BIPV) products have high requirements for printing technology, and traditional manual methods are difficult to meet their high-quality requirements. The automated control method can produce high-quality glazed glass by precisely controlling printing parameters, better meeting the market demand for BIPV products.

[0136] In summary, this method solves the shortcomings of traditional silk-screen printing process that relies on manual experience by automatically controlling the printing parameters of the silk-screen printer, improves efficiency, stability and quality, reduces production costs, and is particularly suitable for the production of high-quality BIPV products.

[0137] See also Figure 8 As shown, Figure 8 1 is a schematic diagram of the structure of the printing parameter automatic control device 200 of the screen printing machine provided in the embodiment of the present application. The printing parameter automatic control device 200 of the screen printing machine is used to execute the steps of the printing parameter automatic control method of the screen printing machine shown in the above embodiments. The printing parameter automatic control device 200 of the screen printing machine can be a single server or a server cluster, or the printing parameter automatic control device 200 of the screen printing machine can be a terminal, which can be a handheld terminal, a laptop computer, a wearable device or a robot, etc.

[0138] like Figure 8 As shown, the printing parameter automatic control device 200 of the screen printing machine includes:

[0139] A first acquisition unit 201 is used to acquire ink in the screen printing machine;

[0140] The second acquisition unit 202 is used to analyze the ink, analyze the ink, and acquire ink parameters, glass powder parameters, and toner parameters corresponding to the ink; the ink parameters at least include ink type and ink initial viscosity, the glass powder parameters at least include glass powder type and glass powder ratio, and the toner parameters at least include toner type and toner ratio;

[0141] The third acquisition unit 203 is used to acquire the environmental parameters corresponding to the screen printing machine; the environmental parameters at least include temperature and humidity;

[0142] A parameter generating unit 204 is used to generate control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental information; the screen printing machine control parameters at least include a scraper angle, a scraper force, a return speed, a lowering position, a retracting position and a downward pressure degree corresponding to the scraper of the screen printing machine;

[0143] The printing completion unit 205 is used to control the screen printing machine to print the glass to be printed according to the control parameters to obtain the printed colored glaze glass.

[0144] It should be noted that technical personnel in the relevant field can clearly understand that, for the convenience and conciseness of description, the specific working processes of the printing parameter automatic control device and each module of the silk screen printing machine described above can refer to the corresponding processes in the embodiments of the printing parameter automatic control method of the silk screen printing machine described in the above embodiments, and will not be repeated here.

[0145] The above-mentioned method for automatically controlling printing parameters of a screen printer can be implemented in the form of a computer program. Figure 8 Run on the device shown.

[0146] See also Fig. 9 , Fig. 9 1 is a schematic block diagram of the structure of a computer device provided in an embodiment of the present application. The computer device includes a processor, a memory and a network interface connected via a device bus, wherein the memory may include a storage medium and an internal memory.

[0147] The storage medium can store an operating device and a computer program. The computer program includes program instructions, and when the program instructions are executed, the processor can execute any method for automatically controlling printing parameters of a screen printing machine.

[0148] The processor is used to provide computing and control capabilities and support the operation of the entire computer equipment.

[0149] The internal memory provides an environment for the operation of the computer program in the non-volatile storage medium. When the computer program is executed by the processor, the processor can execute any method for automatically controlling printing parameters of a screen printing machine.

[0150] The network interface is used for network communication, such as sending assigned tasks, etc. Those skilled in the art will appreciate that Fig. 9 The structure shown in the figure is only a block diagram of a part of the structure related to the scheme of the present application, and does not constitute a limitation on the terminal to which the scheme of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0151] It should be understood that the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0152] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps:

[0153] Get the ink in the screen printer;

[0154] Analyze the ink to obtain ink parameters, glass powder parameters and toner parameters corresponding to the ink; the ink parameters at least include the ink type and the initial viscosity of the ink, the glass powder parameters at least include the glass powder type and the glass powder ratio, and the toner parameters at least include the toner type and the toner ratio;

[0155] Acquire environmental parameters corresponding to the screen printing machine; the environmental parameters at least include temperature and humidity;

[0156] Generate control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental information; the screen printing machine control parameters at least include the scraper angle, scraper force, return speed, lowering position, retracting position and downward pressure degree corresponding to the scraper of the screen printing machine;

[0157] The screen printer is controlled according to the control parameters to print the glass to be printed, so as to obtain the printed colored glaze glass.

[0158] In some embodiments, obtaining the ink parameters corresponding to the ink, the glass powder parameters corresponding to the glass powder, and the toner parameters corresponding to the toner includes: obtaining the chemical composition and physical properties corresponding to the ink, and obtaining the type of ink based on the chemical composition and physical properties; performing viscosity analysis on the ink according to a preset viscometer to obtain the initial viscosity corresponding to the ink; performing fluorescence spectral analysis on the ink to obtain the glass powder parameters; performing chromatographic analysis on the ink to obtain the toner parameters.

[0159] Exemplarily, obtaining the ink type according to the chemical composition and physical properties includes: obtaining a preset ink type library, the ink type library including multiple ink types and preset spectral fingerprints corresponding to the ink types; performing spectral analysis on the ink to obtain spectral information corresponding to the ink; generating a spectral fingerprint corresponding to the ink according to the spectral information, chemical composition and physical properties; and searching in the preset ink type library according to the spectral fingerprint to obtain type information corresponding to the ink.

[0160] In some embodiments, generating control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental parameters includes: inputting the ink parameters, glass powder parameters, toner parameters and environmental parameters into a pre-trained BP neural network model, and the ink parameters, glass powder parameters, toner parameters and environmental parameters sequentially pass through the input layer, hidden layer and output layer of the BP neural network model to output the control parameters.

[0161] Exemplarily, before the ink parameters, glass powder parameters, toner parameters and environmental parameters are input into the pre-trained BP neural network model, the method also includes: obtaining the model information of the screen printing machine; obtaining the historical ink information and historical control information corresponding to the model information; the historical ink information at least includes the historical ink parameters, historical toner parameters, historical glass powder parameters and historical environmental parameters, and the historical control information at least includes the historical scraper angle, historical scraper force, historical return speed, historical lowering position, historical retracting position and historical downward pressure degree corresponding to the scraper; generating training samples according to the historical ink information and the corresponding historical control information; completing the iterative training of the BP neural network model according to the maximum number of training times, the preset error threshold and the initial learning rate.

[0162] In some embodiments, the control parameters are generated according to the ink parameters, glass powder parameters, toner parameters and environmental parameters, including: obtaining an initial scraper angle of the screen printer, and generating the scraper angle according to the initial scraper angle, initial ink viscosity and temperature; obtaining an initial scraper force of the screen printer, and generating the scraper force according to the initial scraper force, initial ink viscosity and the toner ratio; obtaining the molecular complexity corresponding to the ink according to the ink type and obtaining the initial knife return speed of the screen printer, and generating the knife return speed according to the initial knife return speed, the molecular complexity and the humidity; obtaining the initial knife lowering position of the screen printer, and generating the knife lowering position according to the initial knife lowering position, the glass powder ratio and the toner ratio; obtaining the initial knife retracting position of the screen printer, and obtaining the knife retracting position according to the initial knife retracting position, temperature and molecular complexity; obtaining the initial downward pressure degree of the screen printer, and obtaining the downward pressure degree according to the initial downward pressure degree, initial ink viscosity and glass powder ratio.

[0163] Exemplarily, the obtaining of the initial scraper angle of the screen printer and generating the scraper angle according to the initial scraper angle, initial ink viscosity and temperature include: obtaining the standard viscosity and standard temperature corresponding to the ink according to the ink type; generating the scraper angle according to the standard viscosity, standard temperature, initial scraper angle, initial ink viscosity and temperature; the expression corresponding to the scraper angle includes:

[0164] ;

[0165] in, is the scraper angle, is the initial scraper angle, is the standard viscosity, The standard temperature is is the initial ink viscosity, For the temperature, and is the preset adjustment factor.

[0166] Exemplarily, the method of obtaining the molecular complexity corresponding to the ink and the initial return speed of the screen printer according to the ink type, and generating the return speed according to the initial return speed, the molecular complexity and the humidity, includes: extracting features of the ink type to obtain Raman spectral features corresponding to each molecule in the ink type; generating the molecular complexity according to multiple Raman spectral features; obtaining the standard humidity corresponding to the ink type; generating the return speed according to the standard humidity, the initial return speed, the molecular complexity and the humidity; the expression of the return speed includes:

[0167] ;

[0168] in, is the return speed, is the initial return speed, The standard humidity is is the molecular complexity, For the temperature, and is the preset adjustment factor.

[0169] In some embodiments, controlling the screen printer to print on the glass to be printed according to the control parameters includes: obtaining the current number of printings of the screen printer; generating the current viscosity of the ink according to the current number of printings and the control parameters, the initial viscosity of the ink, temperature and humidity; updating the control parameters according to the current viscosity of the ink, so as to control the screen printer to print on the glass to be printed according to the updated control parameters.

[0170] Exemplarily, obtaining the current number of prints of the screen printer includes: setting a displacement sensor at the scraper position of the screen printer; obtaining displacement change information measured by the displacement sensor during the printing process of the screen printer; and obtaining the current number of prints of the screen printer by analyzing the displacement change information and the control parameters.

[0171] The present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the processor implements the steps of the method for automatically controlling printing parameters of a screen printing machine as described in the first aspect above.

[0172] The computer-readable storage medium may be an internal storage unit of the computer device described in the foregoing embodiment, such as a hard disk or memory of the computer device. The computer-readable storage medium may also be an external storage device of the computer device, such as a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc., equipped on the computer device.

[0173] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for automatically controlling printing parameters of a screen printing machine, characterized in that: The method comprises: Get the ink from the screen printer; Analyze the ink to obtain ink parameters, glass powder parameters and toner parameters corresponding to the ink; the ink parameters at least include the ink type and the initial viscosity of the ink, the glass powder parameters at least include the glass powder type and the glass powder ratio, and the toner parameters at least include the toner type and the toner ratio; Obtain the environmental parameters corresponding to the screen printer; the environmental parameters at least include temperature and humidity; Generate control parameters according to ink parameters, glass powder parameters, toner parameters and environmental information; the screen printing machine control parameters at least include the scraper angle, scraper force, return speed, lowering position, retracting position and downward pressure degree corresponding to the scraper of the screen printing machine; the method includes: obtaining the initial scraper angle of the screen printing machine, generating the scraper angle according to the initial scraper angle, initial ink viscosity and temperature, including: obtaining the standard viscosity and standard temperature corresponding to the ink according to the ink type; generating the scraper angle according to the standard viscosity, standard temperature, initial scraper angle, initial ink viscosity and temperature; the expression corresponding to the scraper angle includes: ； in, is the scraper angle, is the initial scraper angle, is the standard viscosity, is the standard temperature, is the initial ink viscosity, For temperature, and is a preset adjustment coefficient; the initial scraper force of the screen printer is obtained, and the scraper force is generated according to the initial scraper force, the initial ink viscosity and the toner ratio; the molecular complexity corresponding to the ink is obtained according to the ink type and the initial return knife speed of the screen printer is obtained, and the return knife speed is generated according to the initial return knife speed, the molecular complexity and the humidity, including: extracting the characteristics of the ink type, obtaining the Raman spectrum characteristics corresponding to each molecule in the ink type; generating the molecular complexity according to multiple Raman spectrum characteristics; obtaining the standard humidity corresponding to the ink type; generating the return knife speed according to the standard humidity, the initial return knife speed, the molecular complexity and the humidity; the expression of the return knife speed includes: ； in, is the return speed, is the initial return speed, For standard humidity, The molecular complexity, For temperature, and is the preset adjustment coefficient; obtain the initial knife position of the screen printer, and generate the knife position according to the initial knife position, glass powder ratio and toner ratio; obtain the initial knife closing position of the screen printer, and obtain the knife closing position according to the initial knife closing position, temperature and molecular complexity; obtain the initial downward pressure degree of the screen printer, and obtain the downward pressure degree according to the initial downward pressure degree, initial ink viscosity and glass powder ratio; Controlling the screen printer to print on the glass to be printed according to the control parameters, including: obtaining the current printing times of the screen printer; generating the current viscosity of the ink according to the current printing times and the control parameters, the initial viscosity of the ink, the temperature and the humidity; updating the control parameters according to the current viscosity of the ink, so as to control the screen printer to print on the glass to be printed according to the updated control parameters; obtaining the colored glaze glass after printing.

2. The method according to claim 1, characterized in that The step of obtaining ink parameters, glass powder parameters, and toner parameters corresponding to the ink includes: Obtaining chemical composition and physical properties corresponding to the ink, and obtaining the type of the ink according to the chemical composition and physical properties; Performing viscosity analysis on the ink according to a preset viscometer to obtain the initial viscosity of the ink; Performing fluorescence spectrum analysis on the ink to obtain parameters of the glass powder; Performing chromatographic analysis on the ink to obtain the toner parameters.

3. The method according to claim 2, characterized in that The step of obtaining the ink type according to the chemical composition and physical properties includes: Acquire a preset ink type library, wherein the ink type library includes a plurality of ink types and preset spectral fingerprints corresponding to the ink types; Performing spectral analysis on the ink to obtain spectral information corresponding to the ink; generating a spectral fingerprint corresponding to the ink according to the spectral information, chemical composition and physical properties; A search is performed in a preset ink type library according to the spectral fingerprint to obtain type information corresponding to the ink.

4. The method according to claim 1, characterized in that The generating of control parameters according to the ink parameters, glass powder parameters, toner parameters and environmental parameters comprises: The ink parameters, glass powder parameters, toner parameters and environmental parameters are input into a pre-trained BP neural network model, and the ink parameters, glass powder parameters, toner parameters and environmental parameters are sequentially passed through the input layer, hidden layer and output layer of the BP neural network model to output the control parameters.

5. The method according to claim 4, characterized in that Before inputting the ink parameters, glass powder parameters, toner parameters and environmental parameters into the pre-trained BP neural network model, the method further includes: Obtaining model information of the screen printing machine; Obtain historical ink information and historical control information corresponding to the model information; the historical ink information at least includes historical ink parameters, historical toner parameters, historical glass powder parameters and historical environmental parameters, and the historical control information at least includes historical scraper angles, historical scraper forces, historical return speeds, historical lowering positions, historical retracting positions and historical downward pressure degrees corresponding to the scraper; generating a training sample according to the historical ink information and the corresponding historical control information; The iterative training of the BP neural network model is completed according to the maximum number of training times, the preset error threshold and the initial learning rate.

6. The method according to claim 1, characterized in that The obtaining of the current printing times of the screen printer includes: A displacement sensor is arranged at the scraper position of the screen printing machine; Acquiring displacement change information measured by the displacement sensor during the printing process of the screen printer; The current printing times of the screen printer are obtained by analyzing the displacement change information and the control parameters.

7. A computer device, characterized in that: The computer device includes a memory and a processor; The memory is used to store computer programs; The processor is configured to execute the computer program and implement the method according to any one of claims 1 to 6 when executing the computer program.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, enables the processor to implement the method according to any one of claims 1 to 6.

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