Glass printing manufacturing control method and system based on flexible curved screen

Abstract

The invention discloses a glass printing manufacturing control method and system based on a flexible curved screen, and relates to the technical field of printing. The method comprises the following steps: preheating the curved glass and carrying out preheating adjustment until the preheating is finished; after preheating is finished, the curved glass is flattened; analyzing the flattening of the curved glass to determine the flattening uniformity degree and the flattening qualification degree of the curved glass; performing flattening adjustment according to the flattening uniformity degree and the flattening qualification degree of the curved glass until flattening is finished; after flattening is finished, the curved glass is printed; and after printing is finished, the printing effect of the curved glass is analyzed, and printing optimization adjustment is conducted. The curved glass is printed after flattening is finished, the printing effect of the curved glass is analyzed after printing is finished, printing optimization adjustment is carried out, the effect of accurately printing the curved glass is achieved, and the problem that in the prior art, printing of the curved glass is difficult to accurately carry out is solved.

Description

Technical Field

[0001] The present invention relates to the field of printing technology, and in particular to a glass printing manufacturing control method and system based on a flexible curved screen. Background Art

[0002] There are many types of flexible curved screens, such as tempered glass for curved display screens. At present, tempered glass for curved display screens is widely used in major furniture, commercial display and artificial intelligence fields around the world, and has always been a product with very large market demand. By using a specific manufacturing process, the curved tempered glass is processed into different shapes, which can not only give full play to the characteristics of the glass, but also make up for its shortcomings and no longer be restricted by the natural properties of the glass. There is a big structural difference between curved tempered glass and flat tempered glass. If an ideal printing process is performed on the curved glass, the effect and efficiency of the traditional curved printing process are greatly limited, and the images and texts of the products produced are unclear, the position deviation is large, the production efficiency is low, and the yield rate is low. Therefore, a better curved glass printing and manufacturing method is needed.

[0003] The existing curved glass printing system evenly applies ink on the steel plate, lowers the silicone pad head to the steel plate, sticks the ink on the characters or patterns to the pad head, moves the pad head to the top of the substrate and lowers it, transfers the ink to the surface of the substrate, repeats the above steps to complete the entire printing process, and realizes the printing function on curved glass.

[0004] For example, a curved glass printing machine is disclosed in the invention patent with publication number CN114347638B, which includes a profiling jig for placing curved glass, a carrying platform for transferring patterns, and a roller printing mechanism for printing on the curved glass. The carrying platform transfers the ink pattern to the flexible part of the roller printing mechanism, and the roller printing mechanism causes the flexible part to produce a flexible deformation and fit on the curved glass of the profiling jig, and then prints the pattern on the flexible part on the curved glass.

[0005] For example, the invention patent with announcement number CN114347639B discloses a method for printing curved glass, comprising: a. inking: a printing machine evenly applies ink on a pad; b. transferring: transferring the pad with an ink pattern onto a non-rigid carrier; c. shaping: shaping and deforming the non-rigid carrier with an ink pattern to achieve the same curved shape as the curved glass; d. printing: placing the curved glass on a profiling jig, and the carrier plate with a curved shape is used to print the ink pattern on the curved glass by roller printing.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0007] In the prior art, when printing on curved glass, the edge of the printed pattern is often not clear enough, resulting in a poor printing effect on the curved glass and difficulty in accurately printing on the curved glass. Summary of the invention

[0008] The embodiments of the present application provide a glass printing manufacturing control method and system based on a flexible curved screen, thereby solving the problem in the prior art that it is difficult to accurately print curved glass, and achieving accurate printing of curved glass.

[0009] The embodiment of the present application provides a glass printing manufacturing control method based on a flexible curved screen, comprising the following steps: preheating the curved glass and performing preheating adjustments until the preheating is completed; flattening the curved glass after the preheating is completed; analyzing the flattening of the curved glass to clarify the flattening uniformity and flattening qualification of the curved glass; performing flattening adjustments according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed; printing the curved glass after the flattening is completed; analyzing the printing effect of the curved glass after printing and performing printing optimization adjustments.

[0010] Furthermore, the specific process of preheating the curved glass and performing preheating adjustment until the preheating is completed is: obtaining curved glass preheating effect data of the curved glass; obtaining a curved glass preheating effect index based on the curved glass preheating effect data; and performing preheating adjustment based on the curved glass preheating effect index until the preheating is completed.

[0011] Furthermore, the specific process of performing preheating adjustment according to the curved glass preheating effect index until the preheating is terminated is: obtaining the curved glass preheating effect index, obtaining a preset curved glass preheating effect first threshold and a curved glass preheating effect second threshold from a database, when the curved glass preheating effect index is greater than the curved glass preheating effect first threshold and less than the curved glass preheating effect second threshold, it indicates that the curved glass observation area is preheated evenly; when in other situations, it indicates that the curved glass observation area is preheated unevenly, and preheating adjustment is performed until a preset first number of curved glass observation areas are preheated evenly and the preheating is terminated; the preheating adjustment specifically includes: when the curved glass preheating effect index is below the curved glass preheating effect first threshold, increasing the preheating temperature of the curved glass observation area; when the curved glass preheating effect index is above the curved glass preheating effect second threshold, decreasing the preheating temperature of the curved glass observation area.

[0012] Furthermore, the specific analysis process of the flattening uniformity is: obtaining the flattening uniformity data of the curved glass during the flattening process; deriving the flattening uniformity coefficient of the curved glass according to the flattening uniformity data of the curved glass; analyzing the flattening uniformity of the curved glass according to the flattening uniformity coefficient of the curved glass; the specific analysis process of analyzing the flattening uniformity of the curved glass according to the flattening uniformity coefficient of the curved glass is: obtaining the flattening uniformity coefficient of the curved glass, obtaining the first flattening uniformity threshold of the curved glass and the second flattening uniformity threshold of the curved glass; when the flattening uniformity coefficient of the curved glass is greater than the first flattening uniformity threshold of the curved glass and less than the second flattening uniformity threshold of the curved glass, it indicates that the observation area of ​​the curved glass is flattened evenly; when in other situations, it indicates that the observation area of ​​the curved glass is unevenly flattened, and flattening adjustments are performed.

[0013] Furthermore, the specific analysis process of the flattening qualification degree is: obtaining curved glass flattening qualification analysis data; deriving a curved glass flattening qualification analysis index based on the curved glass flattening qualification analysis data; analyzing the flattening qualification degree of the curved glass based on the curved glass flattening qualification analysis index; the specific analysis process of analyzing the flattening qualification degree of the curved glass based on the curved glass flattening qualification analysis index is: obtaining the curved glass flattening qualification analysis index, obtaining a curved glass flattening qualification first threshold and a curved glass flattening qualification second threshold, when the curved glass flattening qualification analysis index is greater than the curved glass flattening qualification first threshold and the curved glass flattening qualification second threshold, it indicates that the flattening degree of the curved glass observation area is qualified; when in other situations, it indicates that the flattening degree of the curved glass observation area is unqualified.

[0014] Furthermore, the flattening adjustment specifically includes: when the flattening uniformity coefficient of the curved glass is below the first threshold value of the flattening uniformity of the curved glass, increasing the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening; when the flattening uniformity coefficient of the curved glass is above the second threshold value of the flattening uniformity of the curved glass, lowering the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening; the specific analysis process of performing flattening adjustment according to the flattening uniformity and flattening qualification degree of the curved glass until the flattening is completed is: when the flattening uniformity of the preset second number of curved glass flattening areas and the flattening degree of the preset third number of curved glass observation areas are qualified, the flattening of the curved glass is ended.

[0015] Furthermore, the specific analysis process of analyzing the printing effect of the curved glass after the printing is completed and performing printing optimization adjustment is: obtaining curved glass printing effect analysis data of the curved glass; analyzing the curved glass printing effect analysis index according to the curved glass printing effect analysis data; analyzing the printing effect of the curved glass according to the curved glass printing effect analysis index; the specific analysis process of analyzing the printing effect of the curved glass according to the curved glass printing effect analysis index is: obtaining the curved glass printing effect analysis index, obtaining a preset printing effect analysis first threshold and a printing effect analysis second threshold from a database, when the curved glass printing effect analysis index is greater than the printing effect analysis first threshold and less than the printing effect analysis second threshold, it indicates that the printing effect of the curved glass is qualified and no printing optimization adjustment is performed; when in other situations, it indicates that the printing effect of the curved glass is unqualified and printing optimization adjustment is performed.

[0016] Furthermore, the printing optimization adjustment specifically includes: when the curved glass printing effect analysis index is below the first threshold of the printing effect analysis, it indicates that the flattening of the curved glass does not meet the standard, and the suction cup pressure threshold when flattening the curved glass is increased; when the curved glass printing effect analysis index is above the second threshold of the printing effect analysis, it indicates that the flattening of the curved glass exceeds the standard, and the suction cup pressure threshold when flattening the curved glass is lowered.

[0017] Furthermore, the specific method for obtaining the curved glass printing effect analysis index is as follows: obtaining curved glass printing effect analysis data; obtaining a weight factor corresponding to the thickness of the printing ink layer at a preset observation point and the area of ​​the curved glass printing region from a database; dividing the curved glass into a plurality of observation regions, obtaining the number of observation regions, and numbering the observation regions; obtaining the number of observation points preset in the observation region, and numbering the observation points;

[0018]

[0019] Where, ρ is the curved glass printing effect analysis index of curved glass, It is represented as the observation point printing ink layer thickness of the d0th observation point of the g0th observation area of ​​the curved glass, g0=1,2,...,g, g0 represents the number of the observation area, g represents the total number of the observation areas, d0=1,2,...,d, d0 represents the number of the observation point, d represents the total number of the observation points, It is represented as the reference value of the observation point printed ink layer thickness of the d0th observation point in the g0th observation area of ​​the curved glass, YM is represented as the curved glass printing area area of ​​the curved glass, YG is represented as the reference value of the curved glass printing area area of ​​the curved glass, W1 is represented as the weight factor of the observation point printed ink layer thickness in the curved glass printing effect analysis index, and W2 is represented as the weight factor of the curved glass printing area area in the curved glass printing effect analysis index.

[0020] The embodiment of the present application provides a glass printing manufacturing control system based on a flexible curved screen, including: a preheating adjustment module, a flattening module, a flattening analysis module, a flattening adjustment module, a printing module and a printing optimization module; wherein the preheating adjustment module is used to preheat the curved glass and perform preheating adjustments until the preheating is completed; the flattening module is used to flatten the curved glass after the preheating is completed; the flattening analysis module is used to analyze the flattening of the curved glass to clarify the flattening uniformity and flattening qualification of the curved glass; the flattening adjustment module is used to perform flattening adjustments according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed; the printing module is used to print the curved glass after the flattening is completed; the printing optimization module is used to analyze the printing effect of the curved glass after printing and perform printing optimization adjustments.

[0021] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0022] 1. Preheating the curved glass and adjusting the preheating until the preheating is completed, flattening the curved glass after the preheating is completed, analyzing the flattening of the curved glass to clarify the flattening uniformity and flattening qualification of the curved glass, and adjusting the flattening according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed, printing the curved glass after the flattening is completed, and analyzing the printing effect of the curved glass after printing and performing printing optimization adjustments, thereby achieving accurate printing of the curved glass, and effectively solving the problem of difficulty in accurately printing the curved glass in the prior art.

[0023] 2. By obtaining the curved glass preheating effect data of the curved glass, a curved glass preheating effect index is obtained according to the curved glass preheating effect data, and then preheating adjustment is performed according to the curved glass preheating effect index until the preheating is completed, thereby achieving accurate preheating of the curved glass.

[0024] 3. By acquiring the curved glass printing effect analysis data of the curved glass, the curved glass printing effect analysis index is analyzed according to the curved glass printing effect analysis data, and then the printing effect of the curved glass is analyzed according to the curved glass printing effect analysis index, thereby realizing the analysis of the printing effect of the curved glass and performing printing optimization and adjustment, so that the curved glass can be printed more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flow chart of a glass printing manufacturing control method based on a flexible curved screen provided in an embodiment of the present application;

[0026] Figure 2 A curve chart showing the analysis index of the printing effect on curved glass provided in the embodiment of the present application;

[0027] Figure 3 A schematic structural diagram of a glass printing manufacturing control system based on a flexible curved screen provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The embodiment of the present application solves the problem in the prior art that it is difficult to accurately print curved glass by providing a glass printing manufacturing control method and system based on a flexible curved screen. The method preheats the curved glass and performs preheating adjustments until the preheating is completed, flattens the curved glass after the preheating is completed, analyzes the flattening of the curved glass to determine the flattening uniformity and flattening qualification of the curved glass, performs flattening adjustments according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed, and prints the curved glass after the flattening is completed, thereby analyzing the printing effect of the curved glass after printing and performing printing optimization adjustments, thereby achieving accurate printing of the curved glass.

[0029] The technical solution in the embodiment of the present application is to solve the above-mentioned problem that it is difficult to accurately print on curved glass. The overall idea is as follows:

[0030] By preheating the curved glass, obtaining the curved glass preheating effect data of the curved glass, obtaining the curved glass preheating effect index according to the curved glass preheating effect data, and adjusting the preheating according to the curved glass preheating effect index until the preheating is completed; flattening the curved glass after the preheating is completed; obtaining the curved glass flattening uniformity data during the flattening process, obtaining the curved glass flattening uniformity coefficient according to the curved glass flattening uniformity data, analyzing the flattening uniformity of the curved glass according to the curved glass flattening uniformity coefficient, obtaining the curved glass flattening qualified analysis data, and adjusting the curved glass flattening qualified according to the curved glass flattening qualified Analyze the data to obtain the curved glass flattening qualified analysis index, and analyze the flattening qualified degree of the curved glass according to the curved glass flattening qualified analysis index; make flattening adjustments according to the flattening uniformity and flattening qualified degree of the curved glass until the flattening is completed; print the curved glass after the flattening is completed; obtain the curved glass printing effect analysis data of the curved glass after printing, analyze the curved glass printing effect analysis index according to the curved glass printing effect analysis data, analyze the printing effect of the curved glass according to the curved glass printing effect analysis index and make printing optimization adjustments, so as to achieve the effect of accurately printing the curved glass.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figure 1 As shown, it is a flow chart of a glass printing manufacturing control method based on a flexible curved screen provided in an embodiment of the present application, and the method includes the following steps: preheating the curved glass and performing preheating adjustments until the preheating is completed; flattening the curved glass after the preheating is completed; analyzing the flattening of the curved glass to clarify the flattening uniformity and flattening qualification of the curved glass; performing flattening adjustments according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed; printing the curved glass after the flattening is completed; analyzing the printing effect of the curved glass after printing and performing printing optimization adjustments.

[0033] In this embodiment, a preheating device is used to preheat the curved glass before printing. The preheating is terminated after the preheating standard is met and the flattening stage is entered. During the flattening process, the curved glass is flattened while being kept in a softened state until the flattening standard is met. The flattened curved glass is printed and the printing effect is analyzed. The printing is optimized and adjusted according to the printing effect to achieve a better printing effect on the next curved glass.

[0034] Furthermore, the specific process of preheating the curved glass and performing preheating adjustment until the preheating is completed is: obtaining curved glass preheating effect data of the curved glass; obtaining the curved glass preheating effect index according to the curved glass preheating effect data; and performing preheating adjustment according to the curved glass preheating effect index until the preheating is completed.

[0035] In this embodiment, a specific method for obtaining the curved glass preheating effect index is as follows: dividing the curved glass into multiple observation areas, obtaining the number of observation areas, and numbering the observation areas; obtaining the number of observation points preset in the observation area, and numbering the observation points; obtaining the curved glass preheating effect data, including the observation point temperature value and the observation area temperature average value; obtaining the weight factors corresponding to the preset observation point temperature value and the observation area temperature average value from the database.

[0036]

[0037] In the formula, It is represented as the curved glass preheating effect index of the g0th observation area of ​​the curved glass, g0=1,2,...,g, g0 represents the number of the observation area, g represents the total number of observation areas, It is represented as the observation point temperature value of the d0th observation point in the g0th observation area of ​​the curved glass, d0=1,2,...,d, d0 represents the number of the observation point, d represents the total number of observation points, WZ represents the curved glass softening temperature value of the curved glass, It is expressed as the average temperature of the observation area of ​​the g0th observation area of ​​the curved glass, T1 is expressed as the weight factor of the observation point temperature value in the curved glass preheating effect index, and T2 is expressed as the weight factor of the average temperature of the observation area in the curved glass preheating effect index.

[0038] T1 and T2 represent the weight factors corresponding to the preset observation point temperature value and the observation area temperature average value obtained from the database, respectively, and represent the data of the influence degree of the observation point temperature value and the observation area temperature average value on the curved glass preheating effect index. When used, the weight factors corresponding to the observation point temperature value and the observation area temperature average value can be obtained from the database respectively, and the corresponding relationship can be a pre-set mapping relationship, for example, the observation point temperature value and the observation area temperature average value respectively form a mapping set with the weight factors corresponding to the observation point temperature value and the observation area temperature average value preset in the database, and the observation point temperature value and the observation area temperature average value are respectively input into the corresponding mapping set to obtain the weight factors corresponding to the observation point temperature value and the observation area temperature average value, and the mapping relationship can be one-to-one or many-to-one.

[0039] The temperature of the observation point in the observation area at the current moment is obtained through the temperature sensor, and it is used as the observation point temperature value. The temperature average value of the observation area when the curved glass is preheated uniformly is obtained from the database, and it is used as the average temperature value of the observation area. The softening point temperature of the curved glass is obtained from the database, and it is used as the softening temperature value of the curved glass.

[0040] The closer the observation point temperature value is to the softening temperature value of the curved glass, the closer the temperature of the observation point of the curved glass in the observation area is to the softening point temperature, which means that the curved glass is closer to the softening state. When the softening state of the curved glass is more uniform, the closer the observation point temperature value is to the average temperature of the observation area, the more uniform the temperature of the observation area of ​​the curved glass is. When the curved glass is closer to the preheating state and the preheating is uniform, it is more conducive to the subsequent flattening of the curved glass. In the algorithm of this embodiment, the preheating effect data of the curved glass is nonlinearly transformed by using an exponential function, so that the obtained preheating effect index of the curved glass is more accurate, which is conducive to more accurate preheating adjustment according to the preheating effect index of the curved glass.

[0041] Furthermore, the specific process of performing preheating adjustment according to the curved glass preheating effect index until the preheating is terminated is: obtaining the curved glass preheating effect index, obtaining a preset curved glass preheating effect first threshold and a curved glass preheating effect second threshold from a database, when the curved glass preheating effect index is greater than the curved glass preheating effect first threshold and less than the curved glass preheating effect second threshold, it indicates that the curved glass observation area is preheated evenly; when in other situations, it indicates that the curved glass observation area is preheated unevenly, and preheating adjustment is performed until a preset first number of curved glass observation areas are preheated evenly and the preheating is terminated; the preheating adjustment specifically includes: when the curved glass preheating effect index is below the curved glass preheating effect first threshold, increasing the preheating temperature of the curved glass observation area; when the curved glass preheating effect index is above the curved glass preheating effect second threshold, decreasing the preheating temperature of the curved glass observation area.

[0042] In this embodiment, preheating is terminated until a preset first number of observation areas of the curved glass are evenly preheated. When the preset first number is larger, the proportion of the area of ​​the curved glass evenly preheated is larger, and the curved glass as a whole is closer to a uniform preheating state.

[0043] When the curved glass preheating effect index is below the first threshold value of the curved glass preheating effect, the preheating temperature of the curved glass observation area is increased; when the curved glass preheating effect index is above the second threshold value of the curved glass preheating effect, the preheating temperature of the curved glass observation area is lowered. Raising or lowering the preheating temperature of the curved glass observation area is achieved by raising or lowering the heating temperature of the preheating equipment of the curved glass. For example, when the preheating method of the curved glass is hot air heating, the heating temperature corresponding to the curved glass observation area is increased.

[0044] Furthermore, the specific analysis process of the flattening uniformity is: obtain the flattening uniformity data of the curved glass during the flattening process; derive the flattening uniformity coefficient of the curved glass according to the flattening uniformity data of the curved glass; analyze the flattening uniformity of the curved glass according to the flattening uniformity coefficient of the curved glass; the specific analysis process of analyzing the flattening uniformity of the curved glass according to the flattening uniformity coefficient of the curved glass is: obtain the flattening uniformity coefficient of the curved glass, obtain the first flattening uniformity threshold of the curved glass and the second flattening uniformity threshold of the curved glass; when the flattening uniformity coefficient of the curved glass is greater than the first flattening uniformity threshold of the curved glass and less than the second flattening uniformity threshold of the curved glass, it indicates that the observation area of ​​the curved glass is flattened evenly; when in other situations, it indicates that the observation area of ​​the curved glass is unevenly flattened, and flattening adjustments are performed.

[0045] In this embodiment, the specific method for obtaining the curved glass flattening uniformity coefficient is: obtaining the curved glass flattening uniformity data, including the current temperature of the observation point, the average temperature of the observation area, the refractive index of the observation point, the average refractive index of the observation area, the deformation rate of the observation point and the average deformation rate of the observation area; obtaining the preset weight factors corresponding to the current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point from the database.

[0046]

[0047] In the formula, It is expressed as the flattening uniformity coefficient of the curved glass in the g0th observation area of ​​the curved glass, It is represented as the current temperature of the observation point of the d0th observation point in the g0th observation area of ​​the curved glass. It is expressed as the mean temperature of the observation area of ​​the g0th observation area of ​​the curved glass, It is expressed as the observation point refractive index of the d0th observation point in the g0th observation area of ​​the curved glass, It is expressed as the mean refractive index of the observation area of ​​the g0th observation area of ​​the curved glass, It is expressed as the observation point deformation rate of the d0th observation point in the g0th observation area of ​​the curved glass, It is expressed as the average deformation rate of the observation area of ​​the g0th observation area of ​​the curved glass, K1 is expressed as the weight factor of the current temperature of the observation point in the flattening uniformity coefficient of the curved glass, K2 is expressed as the weight factor of the refractive index of the observation point in the flattening uniformity coefficient of the curved glass, K3 is expressed as the weight factor of the deformation rate of the observation point in the flattening uniformity coefficient of the curved glass, and e is expressed as a natural constant.

[0048] K1, K2 and K3 respectively represent the weight factors corresponding to the preset current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point obtained from the database, and respectively represent the data of the influence degree of the current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point on the flattening uniformity coefficient of the curved glass. When used, the weight factors corresponding to the current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point can be obtained from the database respectively, and the corresponding relationship can be a pre-set mapping relationship, for example, the current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point respectively form a mapping set with the weight factors corresponding to the current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point preset in the database, and the current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point are respectively input into the corresponding mapping set to obtain the weight factors corresponding to the current temperature of the observation point, the refractive index of the observation point and the deformation rate of the observation point, and the mapping relationship can be one-to-one or many-to-one.

[0049] After the preheating is completed, the curved glass is flattened. During the flattening process, the curved glass is heated to keep the curved glass in a softened state. At the same time, the curved glass is flattened by adjusting the suction cup pressure of the flattening device. The temperature of each observation point in the observation area at the current moment is obtained by a temperature sensor, which is used as the current temperature of the observation point. The refractive index of each observation point in the observation area is measured by a refractometer, which is used as the refractive index of the observation point. The current curvature of each observation point in the observation area and the curvature at a previously preset time point are measured by a deformation measuring instrument. The current curvature is subtracted from the curvature at a previously preset time point and divided by the time difference to obtain the deformation rate, which is used as the deformation rate of the observation point. The average temperature, average refractive index and average deformation rate of the observation area when the curved glass is evenly flattened at the current moment are obtained from the database, and are used as the average temperature of the observation area, the average refractive index of the observation area and the average deformation rate of the observation area, respectively.

[0050] When the difference between the current temperature of the observation point and the average temperature of the observation area is smaller, the difference between the refractive index of the observation point and the average refractive index of the observation area is smaller, and the difference between the deformation rate of the observation point and the average deformation rate of the observation area is smaller, it means that the softening state of the observation area of ​​the curved glass is more uniform, which is more conducive to the uniform flattening of the curved glass. Conversely, it is less conducive to the uniform flattening of the curved glass, which easily leads to unevenness after the curved glass is flattened. During the flattening process, the temperature will affect the refractive index and deformation rate of the curved glass. When the current temperature of each observation point of the curved glass is higher, the refractive index of the observation point is lower and the deformation rate is greater, that is, the smaller the refractive index of the observation point is, the greater the deformation rate of the observation point is, and vice versa. In the algorithm of this embodiment, the curved glass flattening uniformity data is nonlinearly transformed by using the inverse tangent function, so that the obtained curved glass flattening uniformity coefficient is more accurate, which is conducive to more accurate analysis of the flattening uniformity of the curved glass according to the curved glass flattening uniformity coefficient.

[0051] Furthermore, the specific analysis process of the flattening qualification degree is as follows: obtain the curved glass flattening qualification analysis data; obtain the curved glass flattening qualification analysis index based on the curved glass flattening qualification analysis data; analyze the flattening qualification degree of the curved glass according to the curved glass flattening qualification analysis index; the specific analysis process of analyzing the flattening qualification degree of the curved glass according to the curved glass flattening qualification analysis index is as follows: obtain the curved glass flattening qualification analysis index, obtain the curved glass flattening qualification first threshold and the curved glass flattening qualification second threshold, when the curved glass flattening qualification analysis index is greater than the curved glass flattening qualification first threshold and the curved glass flattening qualification second threshold, it indicates that the flattening degree of the curved glass observation area is qualified; when in other situations, it indicates that the flattening degree of the curved glass observation area is unqualified.

[0052] In this embodiment, the specific method for obtaining the curved glass flattening qualified analysis index is: obtaining the curved glass flattening qualified analysis data, including the observation point curvature radius, the observation point curvature radius standard value, the observation point refractive index, the observation point refractive index standard value, the observation point stress, and the observation point stress standard value; obtaining the preset observation point curvature radius, observation point refractive index and observation point stress corresponding to the weight factors from the database.

[0053]

[0054] In the formula, It is expressed as the curved glass flattening qualified analysis index of the g0th observation area of ​​the curved glass, It is expressed as the observation point curvature radius of the d0th observation point in the g0th observation area of ​​the curved glass, It is expressed as the standard value of the curvature radius of the observation point of the d0th observation point in the g0th observation area of ​​the curved glass, It is expressed as the observation point refractive index of the d0th observation point in the g0th observation area of ​​the curved glass, It is expressed as the standard value of the refractive index of the observation point d0 of the g0 observation area of ​​the curved glass. It is expressed as the observation point stress of the d0th observation point in the g0th observation area of ​​the curved glass, It is expressed as the standard value of the observation point stress at the d0th observation point in the g0th observation area of ​​the curved glass, N1 is expressed as the weight factor of the observation point curvature radius in the curved glass flattening qualified analysis index, N2 is expressed as the weight factor of the observation point refractive index in the curved glass flattening qualified analysis index, and N3 is expressed as the weight factor of the observation point stress in the curved glass flattening qualified analysis index.

[0055] N1, N2 and N3 respectively represent the weight factors corresponding to the preset observation point curvature radius, observation point refractive index and observation point stress obtained from the database, and respectively represent the data of the influence degree of the observation point curvature radius, observation point refractive index and observation point stress on the flattening qualified analysis index of the curved glass. When used, the weight factors corresponding to the observation point curvature radius, observation point refractive index and observation point stress can be obtained from the database respectively, and the corresponding relationship can be a pre-set mapping relationship, for example, the observation point curvature radius, observation point refractive index and observation point stress respectively form a mapping set with the weight factors corresponding to the observation point curvature radius, observation point refractive index and observation point stress preset in the database, and the observation point curvature radius, observation point refractive index and observation point stress are respectively input into the corresponding mapping set to obtain the weight factors corresponding to the observation point curvature radius, observation point refractive index and observation point stress respectively, and the mapping relationship can be one-to-one or many-to-one.

[0056] The radius of curvature of each observation point in the observation area of ​​the curved glass is measured by an arc measuring instrument or a curvature radius measuring instrument, and is used as the curvature radius of the observation point. The radius of curvature, refractive index and stress of each observation point when the curved glass reaches a standard flattened state are obtained from a database, and are used as the standard value of the curvature radius of the observation point, the standard value of the refractive index of the observation point and the standard value of the stress of the observation point. The refractive index of each observation point is measured by a refractometer, and is used as the refractive index of the observation point. The stress of each observation point is measured by a stress measuring instrument, such as a stress meter or an X-ray diffractometer, and is used as the stress of the observation point.

[0057] When the curvature radius of the observation point is closer to the standard value of the curvature radius of the observation point, the refractive index of the observation point is closer to the standard value of the refractive index of the observation point, and the stress of the observation point is closer to the standard value of the stress of the observation point, it means that the flattened state of the observation area of ​​the curved glass is closer to the standard flattened state, and vice versa, it means that the difference between the flattened state of the observation area of ​​the curved glass and the standard flattened state is greater. In the flattening process of the curved glass, the originally curved surface of the curved glass gradually becomes flat, and the curvature radius increases accordingly. In the area with a larger curvature radius, the light is less refracted when passing through, and the refractive index is lower. In the area with a larger curvature radius, the stress distribution on the glass surface is more uniform and the stress is smaller. Therefore, in the flattening process of the curved glass, the greater the degree of flattening of the curved glass, the larger the curvature radius of the observation point, the smaller the refractive index of the observation point, and the smaller the stress of the observation point, and vice versa. In the algorithm of this embodiment, the curved glass flattening qualified analysis data is nonlinearly transformed by using a hyperbolic cosine function to obtain a curved glass flattening qualified analysis index, so that the accuracy of the curved glass flattening qualified analysis index is higher, which is conducive to more accurately analyzing the flattening qualified degree of the curved glass according to the curved glass flattening qualified analysis index.

[0058] Furthermore, the flattening adjustment specifically includes: when the flattening uniformity coefficient of the curved glass is below the first threshold value of the flattening uniformity of the curved glass, increasing the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening; when the flattening uniformity coefficient of the curved glass is above the second threshold value of the flattening uniformity of the curved glass, lowering the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening; the specific analysis process of performing flattening adjustment according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed is: when the flattening uniformity of a preset second number of curved glass flattening areas and the flattening degree of a preset third number of curved glass observation areas are qualified, the flattening of the curved glass is ended.

[0059] In this embodiment, when the curved glass flattening uniformity coefficient is below the first curved glass flattening uniformity threshold, the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening is increased to increase the flattening degree of the curved glass observation area, so that the flattening degree of the curved glass observation area is closer to the flattening degree in the standard flattening state; when the curved glass flattening uniformity coefficient is above the second curved glass flattening uniformity threshold, the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening is lowered to reduce the flattening degree of the curved glass observation area, so that the flattening degree of the curved glass observation area is closer to the flattening degree in the standard flattening state.

[0060] Furthermore, the specific analysis process of analyzing the printing effect of the curved glass after printing is completed and performing printing optimization and adjustment is as follows: obtaining curved glass printing effect analysis data of the curved glass; analyzing the curved glass printing effect analysis indicators based on the curved glass printing effect analysis data; analyzing the printing effect of the curved glass based on the curved glass printing effect analysis indicators; the specific analysis process of analyzing the printing effect of the curved glass based on the curved glass printing effect analysis indicators is as follows: obtaining the curved glass printing effect analysis indicators, obtaining a preset printing effect analysis first threshold and a printing effect analysis second threshold from a database, when the curved glass printing effect analysis indicator is greater than the printing effect analysis first threshold and less than the printing effect analysis second threshold, it indicates that the printing effect of the curved glass is qualified and no printing optimization and adjustment is performed; when in other situations, it indicates that the printing effect of the curved glass is unqualified and printing optimization and adjustment is performed.

[0061] In this embodiment, a printing effect analysis index for curved glass is obtained, and a preset first printing effect analysis threshold and a second printing effect analysis threshold are obtained from a database. When the printing effect analysis index for curved glass is greater than the first printing effect analysis threshold and less than the second printing effect analysis threshold, it indicates that the printing effect of the curved glass is qualified, the printing effect reaches the expected goal, and no printing optimization adjustment is performed; when in other situations, it indicates that the printing effect of the curved glass is unqualified, the printing effect does not reach the expected goal, and printing optimization adjustment is performed.

[0062] Furthermore, a specific method for obtaining the curved glass printing effect analysis index is as follows: obtaining the curved glass printing effect analysis data; obtaining the weight factor corresponding to the preset observation point printing ink layer thickness and the curved glass printing area area from the database; dividing the curved glass into multiple observation areas, obtaining the number of observation areas, and numbering the observation areas; obtaining the number of preset observation points in the observation area, and numbering the observation points.

[0063]

[0064] Where, ρ is the curved glass printing effect analysis index of curved glass, It is represented as the observation point printing ink layer thickness of the d0th observation point of the g0th observation area of ​​the curved glass, g0=1,2,...,g, g0 represents the number of the observation area, g represents the total number of the observation areas, d0=1,2,...,d, d0 represents the number of the observation point, d represents the total number of the observation points, It is represented as the reference value of the observation point printed ink layer thickness of the d0th observation point in the g0th observation area of ​​the curved glass, YM is represented as the curved glass printing area area of ​​the curved glass, YG is represented as the reference value of the curved glass printing area area of ​​the curved glass, W1 is represented as the weight factor of the observation point printed ink layer thickness in the curved glass printing effect analysis index, and W2 is represented as the weight factor of the curved glass printing area area in the curved glass printing effect analysis index.

[0065] In this embodiment, W1 and W2 respectively represent the weight factors corresponding to the preset observation point printing ink layer thickness and the curved glass printing area area obtained from the database, and respectively represent the data of the influence degree of the observation point printing ink layer thickness and the curved glass printing area area on the curved glass printing effect analysis index. When used, the weight factors corresponding to the observation point printing ink layer thickness and the curved glass printing area area can be obtained from the database respectively, and the corresponding relationship can be a pre-set mapping relationship. For example, the observation point printing ink layer thickness and the curved glass printing area area respectively form a mapping set with the weight factors corresponding to the observation point printing ink layer thickness and the curved glass printing area area preset in the database, and the observation point printing ink layer thickness and the curved glass printing area area are respectively input into the corresponding mapping set to obtain the weight factors corresponding to the observation point printing ink layer thickness and the curved glass printing area area, and the mapping relationship can be one-to-one or many-to-one.

[0066] The thickness of the printed ink layer at each observation point in the observation area of ​​the curved glass is measured by an optical microscope or an electron microscope, and is used as the printed ink layer thickness at the observation point. A high-resolution camera is used to capture the image of the printed curved glass. The collected curved glass image is opened using image processing software, and the image is preprocessed, such as adjusting the brightness and contrast to enhance the visibility of the pattern. The printed pattern is separated from the background using image segmentation techniques such as threshold segmentation. After the pattern is separated, the area of ​​the pattern is obtained using the area measurement tool in the image analysis software, and is used as the printed area area of ​​the curved glass. The printed ink layer thickness at each observation point and the printed area area of ​​the curved glass are obtained from a database when the printing effect of the curved glass reaches the expected goal, and are used as reference values ​​for the printed ink layer thickness at the observation point and the printed area area of ​​the curved glass.

[0067] When the thickness of the printed ink layer at the observation point is closer to the reference value of the printed ink layer thickness at the observation point and the area of ​​the printed area on the curved glass is closer to the reference value of the area of ​​the printed area on the curved glass, the better the flattening of the curved glass is, which means the better the printing effect of the curved glass is, and the less printing optimization adjustment is needed. Conversely, the worse the flattening of the curved glass is, the worse the printing effect of the curved glass is, and the more printing optimization adjustment is needed. If the flattening degree of the curved glass is not enough during printing, the color of the printed pattern in the curved area will be lighter or the ink layer will be thinner. If the curved glass is flattened too much during printing, the ink layer will be too thick or the color will be too dark in the printed pattern in the curved area. When the flattening degree of the curved glass is not enough, some areas of the curved glass still maintain their original curvature and are not completely flattened. The ink printed in these areas may not be evenly distributed, resulting in distortion or deformation of the pattern area, making the printed pattern area smaller than the target area of ​​the printed pattern. When the curved glass is flattened too much, the curved glass may exceed its original flat state, and reverse bending or stress may occur, resulting in the printed pattern being stretched, and the printed pattern area is larger than the target area of ​​the printed pattern. Therefore, the greater the thickness of the printed ink layer at the observation point and the larger the area of ​​the printed area of ​​the curved glass, the higher the flattening degree of the curved glass, and vice versa. In the algorithm of this embodiment, a more accurate curved glass printing effect analysis index is obtained by using a logarithmic function to perform nonlinear transformation on the curved glass printing effect analysis data, so that the printing effect of the curved glass can be analyzed more accurately according to the curved glass printing effect analysis index.

[0068] In a specific embodiment, Figure 2 As shown, it is a curve chart of the curved glass printing effect analysis index provided in the embodiment of the present application, with the thickness of the printed ink layer at the observation point as the independent variable and the curved glass printing effect analysis index as the dependent variable. For example, the observation area of ​​the curved glass is set to 1, the observation point is set to 1, and the weight factors corresponding to the thickness of the printed ink layer at the observation point and the area of ​​the printed area of ​​the curved glass are 0.4 and 0.6 respectively. Through the increase and decrease analysis of curve 1, curve 2 and curve 3, it can be known that when the thickness of the printed ink layer at the observation point is greater, the curved glass printing effect analysis index is greater; when the thickness of the printed ink layer at the observation point is smaller, the curved glass printing effect analysis index is smaller. The statistical table of the relevant data of the curved glass printing effect analysis index is shown in Table 1:

[0069] Table 1 Statistical table of relevant data of the analysis index of curved glass printing effect

[0070]

[0071] When the printing area of ​​the curved glass of Curve 1, Curve 2 and Curve 3 are 100 square millimeters, 110 square millimeters and 120 square millimeters respectively, the thickness of the printing ink layer at the observation point are 20 microns, 22 microns and 24 microns respectively, and other parameters are consistent, the curved glass printing effect analysis indexes of Curve 1, Curve 2 and Curve 3 are 0.693, 1.523 and 3.157 respectively. It can be seen that the greater the thickness of the printing ink layer at the observation point and the larger the printing area of ​​the curved glass, the greater the curved glass printing effect analysis index.

[0072] Furthermore, the printing optimization adjustment specifically includes: when the curved glass printing effect analysis index is below the first threshold of the printing effect analysis, it means that the flattening of the curved glass does not meet the standard, and the suction cup pressure threshold when the curved glass is flattened is increased; when the curved glass printing effect analysis index is above the second threshold of the printing effect analysis, it means that the flattening of the curved glass exceeds the standard, and the suction cup pressure threshold when the curved glass is flattened is lowered.

[0073] In the present embodiment, when the curved glass printing effect analysis index is below the first printing effect analysis threshold, it indicates that the flattening of the curved glass does not meet the standard, which may cause the color of the printed pattern of the curved glass to be lighter or the ink layer to be thinner, causing the printed pattern of the curved glass to be distorted or deformed. By increasing the suction cup pressure threshold when the curved glass is flattened, the flattening degree of the curved glass can be increased, thereby facilitating better printing effects. When the curved glass printing effect analysis index is above the second printing effect analysis threshold, it indicates that the flattening of the curved glass exceeds the standard, which may cause the ink layer of the printed pattern of the curved glass to be too thick or the color to be too dark, and the pattern may be stretched or compressed. By lowering the suction cup pressure threshold when the curved glass is flattened, the flattening degree of the curved glass can be reduced, thereby facilitating better printing effects.

[0074] like Figure 3 As shown, it is a structural schematic diagram of a glass printing and manufacturing control system based on a flexible curved screen provided in an embodiment of the present application. A glass printing and manufacturing control system based on a flexible curved screen provided in an embodiment of the present application includes: a preheating adjustment module, a flattening module, a flattening analysis module, a flattening adjustment module, a printing module and a printing optimization module; wherein, the preheating adjustment module is used to preheat the curved glass and perform preheating adjustments until the preheating is completed; the flattening module is used to flatten the curved glass after the preheating is completed; the flattening analysis module is used to analyze the flattening of the curved glass to clarify the flattening uniformity and flattening qualification of the curved glass; the flattening adjustment module is used to perform flattening adjustments according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed; the printing module is used to print the curved glass after the flattening is completed; the printing optimization module is used to analyze the printing effect of the curved glass after printing and perform printing optimization adjustments.

[0075] In this embodiment, the system is used to print on curved glass, so that the curved glass is printed after being precisely flattened, which improves the accuracy of printing. Adjustments are made after analyzing the printing effect, so that subsequent curved glass can achieve better printing effects.

[0076] The technical solution in the above-mentioned embodiment of the present application is to preheat the curved glass and adjust the preheating until the preheating is completed, flatten the curved glass after the preheating is completed, analyze the flattening of the curved glass to clarify the flattening uniformity and flattening qualification of the curved glass, and adjust the flattening according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed, and print the curved glass after the flattening is completed, so as to analyze the printing effect of the curved glass after printing and perform printing optimization adjustment, thereby realizing accurate printing of the curved glass, and effectively solving the problem of difficulty in accurately printing curved glass in the prior art.

[0077] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0078] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0079] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0080] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0081] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0082] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A glass printing manufacturing control method based on a flexible curved screen, characterized in that: The following steps are involved: Preheating the curved glass and making preheating adjustments until the preheating is complete; Flatten the curved glass after preheating; Analyze the flattening of curved glass to determine the flattening uniformity and flattening qualification of curved glass; According to the flattening uniformity and flattening qualification of the curved glass, flattening adjustment is performed until flattening is completed; Printing on curved glass after flattening; After printing, analyze the printing effect of curved glass and make printing optimization adjustments.

2. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 1, characterized in that: The specific process of preheating the curved glass and performing preheating adjustment until the preheating is completed is as follows: Obtaining curved glass preheating effect data of curved glass; The preheating effect index of curved glass is obtained based on the preheating effect data of curved glass; Make preheating adjustments according to the curved glass preheating effect index until the preheating is completed.

3. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 2, characterized in that: The specific process of adjusting the preheating according to the curved glass preheating effect index until the preheating is finished is: Obtaining a curved glass preheating effect index, obtaining a preset curved glass preheating effect first threshold and a curved glass preheating effect second threshold from a database, when the curved glass preheating effect index is greater than the curved glass preheating effect first threshold and less than the curved glass preheating effect second threshold, it indicates that the curved glass observation area is preheated uniformly; When it is in other situations, it means that the curved glass observation area is preheated unevenly, and preheating adjustment is performed until the preset first number of curved glass observation areas are preheated evenly and the preheating is terminated; The preheating adjustment specifically includes: When the curved glass preheating effect index is below the first threshold value of the curved glass preheating effect, the preheating heating temperature of the curved glass observation area is increased; When the curved glass preheating effect index is above the curved glass preheating effect second threshold value, the preheating heating temperature of the curved glass observation area is lowered.

4. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 1, characterized in that: The specific analysis process of the flattening uniformity is as follows: Acquiring curved glass flattening uniformity data during the flattening process; The flattening uniformity coefficient of the curved glass is obtained according to the flattening uniformity data of the curved glass; Analyze the flattening uniformity of curved glass according to the flattening uniformity coefficient of curved glass; The specific analysis process of analyzing the flattening uniformity of the curved glass according to the flattening uniformity coefficient of the curved glass is as follows: Obtaining a curved glass flattening uniformity coefficient, obtaining a curved glass flattening uniformity first threshold and a curved glass flattening uniformity second threshold. When the curved glass flattening uniformity coefficient is greater than the curved glass flattening uniformity first threshold and less than the curved glass flattening uniformity second threshold, it indicates that the curved glass observation area is flattened uniformly. In other cases, it indicates that the viewing area of ​​the curved glass is unevenly flattened and needs to be adjusted.

5. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 4, characterized in that: The specific analysis process of the flattening qualification degree is as follows: Obtaining curved glass flattening qualified analysis data; The curved glass flattening qualified analysis index is obtained based on the curved glass flattening qualified analysis data; Analyze the flattening qualification level of curved glass according to the curved glass flattening qualification analysis index; The specific analysis process of analyzing the flattening qualification degree of the curved glass according to the curved glass flattening qualification analysis index is as follows: Obtaining a curved glass flattening qualified analysis index, obtaining a curved glass flattening qualified first threshold and a curved glass flattening qualified second threshold, when the curved glass flattening qualified analysis index is greater than the curved glass flattening qualified first threshold and the curved glass flattening qualified second threshold, it indicates that the flattening degree of the curved glass observation area is qualified; In other cases, it means that the flattening degree of the curved glass viewing area is unacceptable.

6. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 5, characterized in that: The flattening adjustment specifically includes: When the flattening uniformity coefficient of the curved glass is below the first flattening uniformity threshold of the curved glass, the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening is increased; When the flattening uniformity coefficient of the curved glass is above the second flattening uniformity threshold of the curved glass, the softening heating temperature of the curved glass observation area or the suction cup pressure during flattening is lowered; The specific analysis process of performing flattening adjustment according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed is as follows: When the flattening uniformity of the preset second number of curved glass flattening areas and the flattening uniformity of the preset third number of curved glass observation areas are qualified, the flattening of the curved glass is terminated.

7. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 1, characterized in that: The specific analysis process of analyzing the printing effect of the curved glass after the printing is completed and performing printing optimization adjustment is as follows: Obtaining curved glass printing effect analysis data of curved glass; Analyze the curved glass printing effect analysis index based on the curved glass printing effect analysis data; Analyze the printing effect of curved glass according to the curved glass printing effect analysis index; The specific analysis process of analyzing the printing effect of the curved glass according to the curved glass printing effect analysis index is as follows: Obtaining a printing effect analysis index for the curved glass, obtaining a preset first printing effect analysis threshold and a second printing effect analysis threshold from a database, when the printing effect analysis index for the curved glass is greater than the first printing effect analysis threshold and less than the second printing effect analysis threshold, it indicates that the printing effect of the curved glass is qualified, and no printing optimization adjustment is performed; In other cases, it indicates that the printing effect of the curved glass is unsatisfactory and the printing optimization adjustment is required.

8. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 7, characterized in that: The printing optimization adjustment specifically includes: When the curved glass printing effect analysis index is below the first printing effect analysis threshold, it means that the flattening of the curved glass does not meet the standard, and the suction cup pressure threshold when the curved glass is flattened is increased; When the curved glass printing effect analysis index is above the second printing effect analysis threshold, it indicates that the flattening of the curved glass exceeds the standard, and the suction cup pressure threshold when the curved glass is flattened is lowered.

9. A glass printing manufacturing control method based on a flexible curved screen as claimed in claim 7, characterized in that: The specific method for obtaining the curved glass printing effect analysis index is as follows: Obtain the analysis data of curved glass printing effect; Obtaining weight factors corresponding to the thickness of the printing ink layer at a preset observation point and the area of ​​the printing region of the curved glass from a database; Divide the curved glass into a plurality of observation areas, obtain the number of the observation areas, and number the observation areas; Get the number of observation points preset in the observation area and number the observation points; Where, ρ is the curved glass printing effect analysis index of curved glass, It is represented as the observation point printing ink layer thickness of the d0th observation point of the g0th observation area of ​​the curved glass, g0=1,2,...,g, g0 represents the number of the observation area, g represents the total number of the observation areas, d0=1,2,...,d, d0 represents the number of the observation point, d represents the total number of the observation points, It is represented as the reference value of the observation point printed ink layer thickness of the d0th observation point in the g0th observation area of ​​the curved glass, YM is represented as the curved glass printing area area of ​​the curved glass, YG is represented as the reference value of the curved glass printing area area of ​​the curved glass, W1 is represented as the weight factor of the observation point printed ink layer thickness in the curved glass printing effect analysis index, and W2 is represented as the weight factor of the curved glass printing area area in the curved glass printing effect analysis index.

10. A glass printing manufacturing control system based on a flexible curved screen, characterized in that: include: Preheating adjustment module, flattening module, flattening analysis module, flattening adjustment module, printing module and printing optimization module; Wherein, the preheating adjustment module is used to preheat the curved glass and perform preheating adjustment until the preheating is completed; The flattening module is used to flatten the curved glass after preheating. The flattening analysis module is used to analyze the flattening of the curved glass to determine the flattening uniformity and flattening qualification of the curved glass; The flattening adjustment module is used to adjust the flattening according to the flattening uniformity and flattening qualification of the curved glass until the flattening is completed; The printing module is used to print on the curved glass after flattening; The printing optimization module is used to analyze the printing effect of the curved glass after printing and perform printing optimization adjustments.

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