Full-automatic glass transfer printing control method and device

Abstract

The invention discloses a full-automatic glass transfer printing control method and device, and the method comprises the steps: building a technological parameter database through automatic analysis of glass parameters and transfer printing parameters, achieving full-process parameter matching, reducing the manual trial and error time, collecting the edge image information of target glass, carrying out the centering positioning of the target glass, and carrying out the full-automatic correction through CCD vision. The positioning is more accurate; the printing ink viscosity and the printing ink temperature are monitored and adjusted to ensure the printing ink quality, the pressure of a coating scraper is set based on the surface roughness of the glass to carry out screen printing UV coating, the current coating ink layer thickness is collected in real time, the coating efficiency is improved, the printing ink utilization rate is improved, and the coating quality and precision are ensured; and the coated target glass is conveyed to an imprinting station, the pressure of a compression roller is adjusted based on the texture depth of the film material and the thickness of the glass, so that the grains on the film material are imprinted to the target glass, cooperative dynamic control of imprinting and UV curing is completed, high-efficiency imprinting is achieved, meanwhile, imprinting precision is guaranteed, and the defect rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of glass transfer printing, and in particular to a full-automatic glass transfer printing control method and device. Background Art

[0002] At present, with the rapid growth in demand for display panels, architectural decorative glass and high-end packaging glass, glass surface transfer technology has become one of the core processes for achieving complex textures, high-precision patterns and OLED-like display effects. However, the existing technology still has significant defects in multi-parameter collaborative control, automation accuracy and process adaptability, which restricts the further improvement of production efficiency and product quality. Traditional silk-screen or thermal transfer equipment mostly uses mechanical positioning or semi-automatic correction methods, which makes it difficult to achieve high-precision alignment. For example, the insufficient stability of the chain drive structure will lead to multi-color printing overprint deviations, and the angle adjustment depends on manual intervention, resulting in a high defective rate. In addition, in the existing coating process, parameters such as scraper pressure, ink viscosity and temperature mostly rely on experience settings, and there is also a lack of dynamic adjustment mechanisms. Summary of the invention

[0003] In view of the above-mentioned defects, the embodiment of the present invention discloses a fully automatic glass transfer control method and device, which

[0004] A first aspect of an embodiment of the present invention discloses a fully automatic glass transfer control method, comprising: in response to a glass transfer instruction, obtaining glass parameters and transfer parameters in the glass transfer instruction, wherein the glass parameters include glass size, glass thickness, and glass surface roughness, and the transfer parameters include coating ink viscosity, coating ink temperature, and coating ink layer thickness;

[0005] Clamp the target glass and transfer it to the positioning station, collect edge image information of the target glass, calculate the center coordinates of the target glass, define the center position of the positioning station as the coordinate origin, calculate the deviation vector between the center coordinates and the coordinate origin, and correct the position of the target glass when the deviation vector is greater than a set threshold value so that the target glass is located at the center position of the positioning station;

[0006] The target glass is transferred to the coating station, and the ink viscosity and ink temperature are monitored and adjusted in real time. The coating scraper pressure is set based on the surface roughness of the glass to perform screen printing UV coating on the target glass, and the current coating ink layer thickness is collected in real time to stop the scraper operation when the current coating ink layer thickness meets the coating ink layer thickness;

[0007] The coated target glass is transferred to the imprinting station, and the pressure roller is controlled to move downward to obtain the texture depth of the film material. The pressure of the pressure roller is adjusted based on the texture depth of the film material and the thickness of the glass to imprint the texture on the target glass, and the UV lamp is started to cure the texture on the target glass.

[0008] As an alternative implementation, in the first aspect of the embodiments of the present invention, calculate the central coordinates of the target glass, define the center position of the positioning station as the coordinate origin, and calculate the deviation vector between the central coordinates and the coordinate origin, including:

[0009] Calculate the central coordinates of the target glass as (Xa, Ya), and define the center position of the positioning station as the coordinate origin (0, 0);

[0010] Calculate the X-axis deviation vector and the Y-axis deviation vector respectively. Among them, the X-axis deviation vector ΔX = Xa - 0, and the Y-axis deviation vector ΔY = Ya - 0;

[0011] Determine whether the X-axis deviation vector and / or the Y-axis deviation vector is greater than the set threshold.

[0012] As an alternative implementation, in the first aspect of the embodiments of the present invention, when the deviation vector is greater than the set threshold, correct the position of the target glass so that the target glass is located at the center position of the positioning station, including:

[0013] When the deviation vector is greater than the set threshold, control the position adjustment motor to drive the shifting component to move the target glass to the target area at the maximum value of the set speed range so that the deviation vector is less than or equal to the set threshold;

[0014] Calculate the current deviation vector. When the current deviation vector is greater than the adjustment threshold, control the position adjustment motor to drive the shifting component to move the target glass in the X-axis direction and / or the Y-axis direction until the current deviation vector is less than the adjustment threshold and the correction is completed, which is defined as the target glass being located at the center position of the positioning station.

[0015] As an alternative implementation, in the first aspect of the embodiments of the present invention, monitor the ink viscosity and ink temperature in real time and adjust the ink viscosity and ink temperature, including:

[0016] Collect the current ink viscosity through a viscosity sensor, collect the current ink temperature through a temperature sensor, and perform average filtering processing on the collected current ink viscosity and current ink temperature;

[0017] Compare the viscosity difference between the current ink viscosity and the set ink viscosity threshold. When the viscosity difference is greater than the set value, calculate the temperature adjustment amount according to the ratio between the viscosity difference and the temperature sensitivity coefficient;

[0018] Adjust the current ink temperature based on the temperature adjustment amount.

[0019] As an alternative implementation, in the first aspect of the embodiments of the present invention, adjust the pressure roller pressure based on the film texture depth and the glass thickness, including:

[0020] Calculate the standard pressure roller pressure according to the formula P1 = k1·D + k2·T + P0, where P1 is the standard pressure roller pressure, K1 is the coefficient of influence of the film texture depth, K2 is the glass thickness compensation coefficient, D is the film texture depth, T is the glass thickness, and P0 is the preset basic pressure;

[0021] Collect the current pressure roller pressure and adjust the current pressure roller pressure according to the standard pressure roller pressure.

[0022] As an optional implementation manner, in the first aspect of the embodiments of the present invention, it further includes:

[0023] Collect the ambient temperature and correct the standard pressure roller pressure based on the collected ambient temperature through the formula P1 = k1D + k2T + α(Tenv - 25) + P0, where α is the temperature compensation coefficient and Tenv is the ambient temperature.

[0024] As an optional implementation manner, in the first aspect of the embodiments of the present invention, set the coating blade pressure based on the glass surface roughness to perform screen printing UV coating on the target glass, including:

[0025] Based on the formula P2 = k3·Ra + k4·Ra 2 + Pa to calculate the target pressure and adjust the coating blade pressure to the target pressure, so that the coating blade performs screen printing UV coating on the target glass at the target pressure, where P2 is the target pressure, Ra is the glass surface roughness, Pa is the preset basic pressure of the blade, k3 is the linear response coefficient of the coating blade pressure to the glass surface roughness, and k4 is the non-linear coefficient for correcting the coating blade pressure under high roughness.

[0026] The second aspect of the embodiments of the present invention discloses a full-automatic glass transfer control device, including:

[0027] An instruction response module: used to respond to a glass transfer instruction and obtain the glass parameters and transfer parameters in the glass transfer instruction. The glass parameters include glass size, glass thickness, and glass surface roughness, and the transfer parameters include coating ink viscosity, coating ink temperature, and coating ink layer thickness;

[0028] A glass positioning module: used to clamp the target glass and transfer it to the positioning station, collect the edge image information of the target glass, calculate the center coordinates of the target glass, define the center position of the positioning station as the coordinate origin, calculate the deviation vector between the center coordinates and the coordinate origin, and correct the position of the target glass when the deviation vector is greater than the set threshold, so that the target glass is located at the center position of the positioning station;

[0029] Glass coating module: used to transfer the target glass to the coating station, monitor the ink viscosity and ink temperature in real time, adjust the ink viscosity and ink temperature, set the coating scraper pressure based on the glass surface roughness to perform screen printing UV coating on the target glass, and collect the current coating ink layer thickness in real time to stop the scraper operation when the current coating ink layer thickness meets the coating ink layer thickness;

[0030] Glass imprinting module: used to transfer the coated target glass to the imprinting station, control the downward movement of the pressing roller, obtain the texture depth of the film material, adjust the pressure of the pressing roller based on the texture depth of the film material and the thickness of the glass, so as to imprint the texture on the film material onto the target glass, and start the UV lamp to cure the texture on the target glass.

[0031] As an optional implementation, in the second aspect of the embodiment of the present invention, when the deviation vector is greater than a set threshold, the position of the target glass is corrected so that the target glass is located at the center of the positioning station, including:

[0032] When the deviation vector is greater than a set threshold, the position adjustment motor is controlled to drive the shift component to move the target glass to the target area at a maximum value of a set speed range so that the deviation vector is less than or equal to the set threshold;

[0033] Calculate the current deviation vector. When the current deviation vector is greater than the adjustment threshold, control the position adjustment motor to drive the shift component to move the target glass in the X-axis direction and / or Y-axis direction at a closed-loop adjustment speed until the current deviation vector is less than the adjustment threshold and the correction is completed. It is defined that the target glass is located in the center of the positioning station.

[0034] As an optional implementation, in the second aspect of the embodiment of the present invention, real-time monitoring of ink viscosity and ink temperature, and adjusting the ink viscosity and ink temperature include:

[0035] The current ink viscosity is collected by a viscosity sensor, the current ink temperature is collected by a temperature sensor, and an average filtering process is performed on the collected current ink viscosity and current ink temperature;

[0036] Comparing the viscosity difference between the current ink viscosity and the set ink viscosity threshold, when the viscosity difference is greater than the set value, calculating the temperature adjustment amount according to the ratio between the viscosity difference and the temperature sensitivity coefficient;

[0037] The current ink temperature is adjusted based on the temperature adjustment amount.

[0038] As an optional implementation manner, in the second aspect of the embodiment of the present invention, adjusting the pressure of the pressing roller based on the film material texture depth and the glass thickness includes:

[0039] Calculate the standard pressure roller pressure according to the formula P1 = k1·D + k2·T + P0, where P1 is the standard pressure roller pressure, K1 is the influencing coefficient of the film texture depth, K2 is the glass thickness compensation coefficient, D is the film texture depth, T is the glass thickness, and P0 is the preset base pressure;

[0040] Collect the current pressure roller pressure and adjust the current pressure roller pressure according to the standard pressure roller pressure.

[0041] As an alternative implementation, in the second aspect of the embodiments of the present invention, it further includes:

[0042] Collect the ambient temperature and correct the standard pressure roller pressure based on the collected ambient temperature through the formula P1 = k1D + k2T + α(Tenv - 25) + P0, where α is the temperature compensation coefficient and Tenv is the ambient temperature.

[0043] As an alternative implementation, in the second aspect of the embodiments of the present invention, set the coating blade pressure based on the glass surface roughness to perform screen printing UV coating on the target glass, including:

[0044] Based on the formula P2 = k3·Ra + k4·Ra 2 + Pa to calculate the target pressure and adjust the coating blade pressure to the target pressure, so that the coating blade performs screen printing UV coating on the target glass at the target pressure, where P2 is the target pressure, Ra is the glass surface roughness, Pa is the preset base pressure of the blade, k3 is the linear response coefficient of the coating blade pressure to the glass surface roughness, and k4 is the non - linear coefficient for correcting the coating blade pressure under high roughness.

[0045] The third aspect of the embodiments of the present invention discloses an electronic device, including: a memory storing executable program code; a processor coupled to the memory; the processor calls the executable program code stored in the memory for executing the full - automatic glass transfer control method disclosed in the first aspect of the embodiments of the present invention.

[0046] The fourth aspect of the embodiments of the present invention discloses a computer - readable storage medium storing a computer program, wherein the computer program enables a computer to execute the full - automatic glass transfer control method disclosed in the first aspect of the embodiments of the present invention.

[0047] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0048] In the embodiments of the present invention, a process parameter database is established by automatically parsing glass parameters and transfer parameters to achieve full-process parameter matching, reduce the manual trial-and-error time, and collect the edge image information of the target glass to center-position the target glass. The full-automatic correction by the CCD vision system replaces manual calibration, and the positioning is more accurate. The ink viscosity and ink temperature are monitored and adjusted in real time to ensure the ink quality. The coating blade pressure is set based on the glass surface roughness to perform screen printing UV coating on the target glass, and the current coating ink layer thickness is collected in real time, greatly improving the coating efficiency, increasing the ink utilization rate, and ensuring the coating quality and accuracy. The coated target glass is conveyed to the embossing station, and the pressure roller pressure is adjusted based on the film texture depth and the glass thickness to emboss the pattern on the film onto the target glass, completing the coordinated dynamic control of embossing and UV curing, achieving high-efficiency embossing while ensuring the precision of embossing and reducing the defect rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0050] Figure 1 is a schematic flowchart of a full-automatic glass transfer control method disclosed in the embodiments of the present invention;

[0051] Figure 2 is a schematic structural diagram of a full-automatic glass transfer control device provided in the embodiments of the present invention;

[0052] Figure 3 is a schematic structural diagram of an electronic device provided in the embodiments of the present invention;

[0053] Figure 4 is a structural diagram of a full-automatic glass transfer control device applied to a full-automatic glass transfer control method in the embodiments of the present invention;

[0054] Figure 5 is Figure 4 a top view structural diagram of

[0055] In the figure, 1, feeding and positioning station; 2, coating station; 3, embossing station; 4, sheet conveying station. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that the terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention are used to distinguish different objects rather than to describe a specific order. The terms "including" and "having" in the embodiments of the present invention and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0058] The embodiment of the present invention discloses a fully automatic glass transfer control method, device, electronic device and storage medium. In the embodiment, a process parameter database is established by automatically parsing glass parameters and transfer parameters to achieve full-process parameter matching, reduce manual trial and error time, and collect edge image information of the target glass to center the target glass. Fully automatic correction by a CCD visual system replaces manual adjustment, and the positioning is more accurate; real-time monitoring and adjustment of ink viscosity and ink temperature to ensure ink quality, setting coating scraper pressure based on glass surface roughness to perform silk-screen UV coating on the target glass, and real-time collection of the current coating ink layer thickness, greatly improving coating efficiency, improving ink utilization, and ensuring coating quality and accuracy; the coated target glass is transmitted to the embossing station, and the pressure of the pressing roller is adjusted based on the film material texture depth and glass thickness to emboss the texture on the film material onto the target glass, completing the coordinated dynamic control of embossing and UV curing, achieving efficient embossing while ensuring precision embossing and reducing the defect rate.

[0059] Embodiment 1

[0060] See also Figure 1 , Figure 1It is a schematic flow chart of the full-automatic glass transfer control method disclosed in the embodiments of the present invention. Among them, the execution subject of the method described in the embodiments of the present invention is an execution subject composed of software or / and hardware. This execution subject can receive relevant information through wired or / and wireless means and can send certain instructions. Of course, it can also have certain processing functions and storage functions. This execution subject can control multiple devices, such as remote physical servers or cloud servers and related software, or it can also be a local host or server and related software that performs relevant operations on devices placed somewhere. In some scenarios, it can also control multiple storage devices, and the storage devices can be placed in the same place or different places as the devices. As Figure 1 shown, the full-automatic glass transfer control method includes the following steps:

[0061] 101. In response to the glass transfer instruction, obtain the glass parameters and transfer parameters in the glass transfer instruction. The glass parameters include glass size, glass thickness, and glass surface roughness, and the transfer parameters include coating ink viscosity, coating ink temperature, and coating ink layer thickness.

[0062] In the embodiment, as Figure 4 and Figure 5 shown, there are a total of four workstations. One workstation is the film feeding and positioning station 1, in which the target glass is conveyed in and precisely positioned; one workstation is the coating station 2, which is used for one-to-one alignment and screen printing of UV coating; one workstation is the embossing station 3, which is used for embossing and light curing; one workstation is the film transfer station 4, which is used to convey the transferred target glass out of the film. The glass is automatically lifted and conveyed back and forth through the guide rail under the platform.

[0063] The glass transfer instruction is used to start the system process. This instruction may be manually input or automatically triggered after the system meets the conditions. The glass size usually refers to the glass area.

[0064] 102. Clamp the target glass and convey it to the positioning station, collect the edge image information of the target glass, calculate the center coordinates of the target glass, define the center position of the positioning station as the coordinate origin, calculate the deviation vector between the center coordinates and the coordinate origin, and correct the position of the target glass when the deviation vector is greater than the set threshold so that the target glass is located at the center position of the positioning station.

[0065] First, the target glass is first cleaned and conveyed to the positioning station. The servo motor first centers the glass. The guide rail extends at the initial position, and the suction cup on the guide rail sucks and holds up the glass. The guide rail moves the glass to the second station for screen printing of UV coating. The guide rail lowers the glass, and the platform automatically sucks the glass through suction to ensure that the position remains unchanged. The guide rail returns to the initial position and repeats the same action.

[0066] In the positioning stage, visual correction is adopted in the embodiment. A position deviation threshold of the vision system is set, and combined with the feedback control algorithm of the servo motor, such as the PID algorithm, the correction of the glass position is realized. Specifically, the central coordinates of the target glass are calculated as (Xa, Ya), and the central position of the positioning station is defined as the coordinate origin (0, 0); the X-axis deviation vector and the Y-axis deviation vector are calculated respectively, where the X-axis deviation vector ΔX = Xa - 0, and the Y-axis deviation vector ΔY = Ya - 0; it is judged whether the X-axis deviation vector and / or the Y-axis deviation vector is greater than the set threshold. Further, when the deviation vector is greater than the set threshold, the position of the target glass is corrected so that the target glass is located at the central position of the positioning station, including: when the deviation vector is greater than the set threshold, controlling the position adjustment motor to drive the shifting component to move the target glass to the target area at the maximum value of the set speed range, so that the deviation vector is less than or equal to the set threshold; calculating the current deviation vector, when the current deviation vector is greater than the adjustment threshold, controlling the position adjustment motor to drive the shifting component to move the target glass in the X-axis direction and / or the Y-axis direction until the current deviation vector is less than the adjustment threshold, and the correction is completed, which is defined as the target glass being located at the central position of the positioning station.

[0067] Exemplarily, after the target glass is positioned, the initial deviations ΔX = 0.8 mm and ΔY = -0.3 mm are measured. At this time, the X-axis deviation is greater than the set threshold, and it enters the rough positioning correction stage. Control the X-axis direction to move at the maximum speed of 50 mm / s. It enters the fine positioning range within 0.8 mm / 50 mm / s = 0.016 s. Within the fine positioning range, after closed-loop adjustment, the X-axis deviation changes from 0.8 mm to 0.4 mm to 0.15 mm to 0.05 mm, which is less than the adjustment threshold. At this time, it is very close to 0 and is set as qualified, that is, the correction is completed. Through this method of automatic feedback correction of positioning, the position of the target glass can be accurately positioned, and the positioning correction speed is fast, which can ensure that the glass is accurately centered in the high-speed production line and meet the high-precision manufacturing requirements such as in-vehicle display panels.

[0068] 103. Transfer the target glass to the coating station, monitor the ink viscosity and ink temperature in real time, adjust the ink viscosity and ink temperature, set the coating blade pressure based on the glass surface roughness to perform screen printing UV coating on the target glass, and collect the current coating ink layer thickness in real time, so as to stop the blade work when the current coating ink layer thickness meets the coating ink layer thickness.

[0069] In this step, the system guide rail lowers the glass, and the platform sucks the glass through suction to ensure that the position remains unchanged. Perform screen printing UV coating, and after the coating is completed, the guide rail returns to the initial position.

[0070] Viscosity is an indication of the internal friction (cohesion) of a fluid. Ink viscosity is the "core control valve" of the printing process and needs to be dynamically adjusted according to substrate characteristics (such as glass roughness), printing methods, and environmental conditions. Precise control of viscosity can significantly improve printing efficiency, reduce waste (such as flying ink and reprinting), and ensure that the final product meets industrial standards (such as ISO 2846-1) in terms of adhesion, color saturation, and durability. For high-precision scenarios (such as in-vehicle display panels), the viscosity fluctuation needs to be controlled within ±5% to ensure the consistency of the OLED-like display effect.

[0071] In the embodiment, the ink viscosity and the ink temperature are monitored in real time, and the ink viscosity and the ink temperature are adjusted, including: collecting the current ink viscosity through a viscosity sensor, collecting the current ink temperature through a temperature sensor, and performing an average filtering process on the collected current ink viscosity and the current ink temperature; comparing the viscosity difference between the current ink viscosity and the set ink viscosity threshold, and when the viscosity difference is greater than the set value, calculating the temperature adjustment amount according to the ratio between the viscosity difference and the temperature sensitivity coefficient, that is, the temperature adjustment amount is equal to the viscosity difference divided by the temperature sensitivity coefficient; adjusting the current ink temperature based on the temperature adjustment amount.

[0072] In this step, during the coating stage, by adjusting the ink viscosity and the ink temperature, the stability of the ink viscosity can be precisely controlled, and the ink temperature is adjusted based on the ink viscosity to achieve dynamic distribution, reduce energy consumption, maintain the working performance of the UV ink, ensure the screen printing and transfer quality, and is applicable to the manufacturing scenario of high-precision display panels.

[0073] In this step, in addition to precisely controlling and adjusting the ink viscosity and the ink temperature, the pressure of the coating blade is monitored and feedback-controlled, and the pressure of the coating blade is automatically adjusted according to the glass surface roughness to ensure uniform coating of the ink, and further, the speed of the blade is feedback-adjusted according to the thickness of the coated ink layer. When the blade stops working, it indicates that the coating is completed.

[0074] Specifically, automatically adjusting the pressure of the coating blade according to the glass surface roughness is based on the formula P2 = k3·Ra + k4·Ra 2 + Pa to calculate the target pressure, and adjusting the pressure of the coating blade to the target pressure so that the coating blade performs screen printing UV coating on the target glass at the target pressure, where P2 is the target pressure, Ra is the glass surface roughness, Pa is the preset basic pressure of the blade, k3 is the linear response coefficient of the coating blade pressure to the glass surface roughness, and k4 is the non-linear coefficient for correcting the coating blade pressure under high roughness.

[0075] Among the above, the data of the glass surface roughness is directly obtained through the glass transfer instruction. Specifically, it can be obtained by scanning the three-dimensional topography data of the glass surface, or by measuring with a contact roughness instrument. Before the target glass enters the positioning station, the roughness measurement can be carried out in advance, and thus the glass surface roughness can be obtained in advance. The above K3, K4, and P2 are set in advance according to different glass materials. K3 represents the linear influence of the unit roughness (Ra value) on the squeegee pressure. Exemplarily, K3 = 0.2 N / μm. Specifically, for every 1 micrometer (μm) increase in roughness (Ra value), the squeegee pressure needs to be increased by 0.2 newtons (N) to ensure that the ink fully fills the microscopic uneven structures on the glass surface, while avoiding uneven coating or insufficient ink penetration. Its core function is to convert the microscopic surface characteristics into operable process parameters to ensure that glasses with different roughnesses can all obtain uniform coating and avoid display panel optical defects caused by insufficient or excessive pressure. When the glass surface roughness (Ra) is relatively high, the relationship between the squeegee pressure and the roughness may no longer be linear. Therefore, the embodiment introduces the quadratic term k4·Ra 2 to correct the pressure requirement under high roughness and prevent the ink from overly penetrating into the microscopic grooves on the glass surface due to excessive pressure. The unit of K4 is newtons per square micrometer (N / μm 2 ), indicating the incremental squeegee pressure that needs to be additionally applied for every 1 square micrometer increase in roughness (Ra 2 ). Introducing k4·Ra2 can avoid insufficient ink filling or excessive penetration, making the formula accurate within a larger Ra range.

[0076] 104. Transfer the coated target glass to the embossing station, control the lower movement of the embossing roller, obtain the texture depth of the film material, and adjust the embossing roller pressure based on the texture depth of the film material and the glass thickness to emboss the patterns on the film material onto the target glass, and start the UV lamp to cure the patterns on the target glass.

[0077] In this step, the system transfers the target glass to the embossing station, and the embossing roller moves downward to emboss the patterns on the film onto the glass.

[0078] At the same time, start the UV lamp for curing. After the curing is completed, the glass continues to be transported.

[0079] Screen printing UV coating is a printing process that combines screen printing technology and UV (ultraviolet) curing technology. The ink is printed onto the substrate through a screen printing plate (screen). The mesh holes in the graphic part of the screen can allow the ink to pass through, while the non-graphic part is blocked. And UV curing uses UV ink containing photosensitizers, which rapidly undergoes a photochemical reaction under ultraviolet irradiation, and the liquid ink instantly cures into a film. Compared with traditional screen printing, UV curing has no solvents and low pollution.

[0080] In this step, the pressure roller pressure is adjusted based on the film texture depth and the glass thickness, including: calculating the standard pressure roller pressure according to the formula P1 = k1·D + k2·T + P0, where P1 is the standard pressure roller pressure, K1 is the film texture depth influence coefficient, which is usually related to the material hardness, K2 is the glass thickness compensation coefficient, which is usually related to the glass stiffness, D is the film texture depth, T is the glass thickness, and P0 is the preset basic pressure, which is an empirical value; collecting the current pressure roller pressure and adjusting the current pressure roller pressure according to the standard pressure roller pressure. In an embodiment, the film material temperature depth and the glass thickness can be collected by a sensor, and the preset film texture depth influence coefficient and glass thickness compensation coefficient are matched according to different material types.

[0081] Furthermore, it also includes: collecting the ambient temperature and correcting the standard pressure roller pressure based on the collected ambient temperature through the formula P1 = k1D + k2T + α(Tenv - 25) + P0, where α is the temperature compensation coefficient and Tenv is the ambient temperature. When obtaining the film texture depth data, the surface of the film material is scanned by a laser displacement sensor to obtain the texture depth distribution data Di (i = 1, 2,..., ni), and then the average texture depth is calculated as the film texture depth used in this embodiment. In an application scenario, the glass thickness T of the in-vehicle display glass is 2 mm, its texture film imitating OLED, the film texture depth D = 10 μm, the collected ambient temperature is 30 °C, and from the database according to the material type, K1 = 0.05 MPa / μm, K2 = 0.02 MPa / mm, P0 = 0.1 Mpa. At this time, the target pressure is calculated as 0.05×10 + 0.02×2 + 0.005×(30 - 25) + 0.1 = 0.5 + 0.04 + 0.025 + 0.1 = 0.665 Mpa. Due to the introduction of dynamic pressure adjustment and further proposing temperature compensation calculation in the embodiment, the embossing quality and the equipment intelligent level can be significantly improved.

[0082] After the light curing is completed in the embodiment, the system transports the target glass to the sheet-out station through the guide rail and finally transports it out by the roller. The equipment uses a servo motor and a guide rail system to realize the automatic lifting and transportation of the glass, reducing manual operation and improving production efficiency. Based on visual positioning to detect the product position and automatically correct it to ensure that the product position completely coincides with the screen position. Combining with the UV nano-transfer printing technology, the layering and three-dimensional sense of the glass surface are enhanced, and at the same time, the energy consumption is reduced. Using the UV curing technology, compared with the traditional screen printing, the emission of organic waste gas is reduced. The equipment supports a variety of printing processes (such as screen printing, UV transfer printing, etc.) and is applicable to different types of glass materials.

[0083] Embodiment 2

[0084] Please refer to Figure 2 , Figure 2It is a schematic structural diagram of a fully automatic glass transfer control device disclosed in an embodiment of the present invention. As Figure 2 shown, the fully automatic glass transfer control device may include: an instruction response module 201, a glass positioning module 202, a glass coating module 203, and a glass embossing module 204. The instruction response module 201: is configured to respond to a glass transfer instruction and obtain glass parameters and transfer parameters in the glass transfer instruction. The glass parameters include glass size, glass thickness, and glass surface roughness. The transfer parameters include coating ink viscosity, coating ink temperature, and coating ink layer thickness. The glass positioning module 202: is configured to clamp a target glass and transfer it to a positioning station, collect edge image information of the target glass, calculate the center coordinates of the target glass, define the center position of the positioning station as the coordinate origin, calculate the deviation vector between the center coordinates and the coordinate origin, and correct the position of the target glass when the deviation vector is greater than a set threshold, so that the target glass is located at the center position of the positioning station. The glass coating module 203: is configured to transfer the target glass to a coating station, monitor the ink viscosity and ink temperature in real time, adjust the ink viscosity and ink temperature, set the coating blade pressure based on the glass surface roughness to perform screen printing UV coating on the target glass, and collect the current coating ink layer thickness in real time, and stop the blade work when the current coating ink layer thickness meets the coating ink layer thickness. The glass embossing module 204: is configured to transfer the coated target glass to an embossing station, control the pressure roller to move down, obtain the texture depth of the film material, adjust the pressure roller pressure based on the texture depth of the film material and the glass thickness, emboss the pattern on the film material onto the target glass, and start the UV lamp to cure the pattern on the target glass.

[0085] Further, in the glass positioning module 202, calculating the center coordinates of the target glass, defining the center position of the positioning station as the coordinate origin, and calculating the deviation vector between the center coordinates and the coordinate origin includes: calculating the center coordinates of the target glass as (Xa, Ya), and defining the center position of the positioning station as the coordinate origin (0, 0); respectively calculating the X-axis deviation vector and the Y-axis deviation vector, where the X-axis deviation vector ΔX = Xa - 0, and the Y-axis deviation vector ΔY = Ya - 0; determining whether the X-axis deviation vector and / or the Y-axis deviation vector is greater than a set threshold. And when the deviation vector is greater than the set threshold, correcting the position of the target glass so that the target glass is located at the center position of the positioning station includes: when the deviation vector is greater than the set threshold, controlling the position adjustment motor to drive the displacement component to move the target glass to the target area at the maximum value of the set speed range, so that the deviation vector is less than or equal to the set threshold; calculating the current deviation vector, and when the current deviation vector is greater than the adjustment threshold, controlling the position adjustment motor to drive the displacement component to move the target glass in the X-axis direction and / or the Y-axis direction until the current deviation vector is less than the adjustment threshold and the correction is completed, which is defined as the target glass being located at the center position of the positioning station.

[0086] In the glass coating module 203, the ink viscosity and ink temperature are monitored in real time, and the ink viscosity and ink temperature are adjusted, including: collecting the current ink viscosity through a viscosity sensor, collecting the current ink temperature through a temperature sensor, and performing average filtering processing on the collected current ink viscosity and current ink temperature; comparing the viscosity difference between the current ink viscosity and the set ink viscosity threshold, and when the viscosity difference is greater than the set value, calculating the temperature adjustment amount according to the ratio between the viscosity difference and the temperature sensitivity coefficient; adjusting the current ink temperature based on the temperature adjustment amount. Setting the coating blade pressure based on the glass surface roughness to perform screen printing UV coating on the target glass, including: based on the formula P2 = k3·Ra + k4·Ra 2 + Pa to calculate the target pressure, and adjusting the coating blade pressure to the target pressure so that the coating blade performs screen printing UV coating on the target glass with the target pressure, where P2 is the target pressure, Ra is the glass surface roughness, Pa is the preset basic pressure of the blade, k3 is the linear response coefficient of the coating blade pressure to the glass surface roughness, and k4 is the non-linear coefficient for correcting the coating blade pressure under high roughness.

[0087] In the glass embossing module 204, the pressure of the pressing roller is adjusted based on the texture depth of the film material and the glass thickness, including: calculating the standard pressing roller pressure according to the formula P1 = k1·D + k2·T + P0, where P1 is the standard pressing roller pressure, K1 is the film material texture depth influence coefficient, K2 is the glass thickness compensation coefficient, D is the film material texture depth, T is the glass thickness, and P0 is the preset basic pressure; collecting the current pressing roller pressure and adjusting the current pressing roller pressure according to the standard pressing roller pressure. Further, it also includes a pressure correction module for collecting the ambient temperature and correcting the standard pressing roller pressure based on the collected ambient temperature through the formula P1 = k1D + k2T + α(Tenv - 25) + P0, where α is the temperature compensation coefficient and Tenv is the ambient temperature.

[0088] Embodiment III

[0089] Please refer to Figure 3 , Figure 3 which is a schematic structural diagram of an electronic device disclosed in an embodiment of the present invention. The electronic device can be a computer, a server, etc. Of course, in certain cases, it can also be a smart device such as a mobile phone, a tablet computer, and a monitoring terminal, as well as an image acquisition device with processing functions. As Figure 3 shown, the electronic device may include:

[0090] A memory 301 storing executable program code;

[0091] A processor 302 coupled to the memory 301;

[0092] Among them, the processor 302 calls the executable program code stored in the memory 301 and executes some or all of the steps in the full-automatic glass transfer control method in the first embodiment.

[0093] An embodiment of the present invention discloses a computer-readable storage medium that stores a computer program, where the computer program causes a computer to execute some or all of the steps in the full-automatic glass transfer control method in the first embodiment.

[0094] An embodiment of the present invention also discloses a computer program product, where when the computer program product runs on a computer, it causes the computer to execute some or all of the steps in the full-automatic glass transfer control method in the first embodiment.

[0095] An embodiment of the present invention also discloses an application publishing platform, where the application publishing platform is used to publish a computer program product, and when the computer program product runs on a computer, it causes the computer to execute some or all of the steps in the full-automatic glass transfer control method in the first embodiment.

[0096] In various embodiments of the present invention, it should be understood that the magnitude of the sequence numbers of the various processes does not necessarily mean the inevitable sequence of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0097] The unit described as a separated component may or may not be physically separated, and the component shown as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0098] In addition, in each embodiment of the present invention, the various functional units may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0099] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-accessible memory. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several requests for causing a computer device (which can be a personal computer, a server, or a network device, etc., specifically, the processor in the computer device) to execute some or all of the steps of the methods described in the various embodiments of the present invention.

[0100] In the embodiments provided by the present invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0101] Those of ordinary skill in the art can understand that some or all of the steps in the various methods of the embodiments can be completed by instructing relevant hardware through a program, and this program can be stored in a computer-readable storage medium. The storage medium includes read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc memories, magnetic disk memories, tape memories, or any other computer-readable medium capable of carrying or storing data.

[0102] The full-automatic glass transfer control method, device, electronic device and storage medium disclosed in the embodiments of the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A fully automatic glass transfer control method, characterized in that: include: In response to the glass transfer instruction, obtaining glass parameters and transfer parameters in the glass transfer instruction, wherein the glass parameters include glass size, glass thickness, and glass surface roughness, and the transfer parameters include coating ink viscosity, coating ink temperature, and coating ink layer thickness; Clamp the target glass and transfer it to the positioning station, collect edge image information of the target glass, calculate the center coordinates of the target glass, define the center position of the positioning station as the coordinate origin, calculate the deviation vector between the center coordinates and the coordinate origin, and correct the position of the target glass when the deviation vector is greater than a set threshold value so that the target glass is located at the center position of the positioning station; The target glass is transferred to the coating station, and the ink viscosity and ink temperature are monitored and adjusted in real time. The coating scraper pressure is set based on the surface roughness of the glass to perform screen printing UV coating on the target glass, and the current coating ink layer thickness is collected in real time to stop the scraper operation when the current coating ink layer thickness meets the coating ink layer thickness; The coated target glass is transferred to the imprinting station, and the pressure roller is controlled to move downward to obtain the texture depth of the film material. The pressure of the pressure roller is adjusted based on the texture depth of the film material and the thickness of the glass to imprint the texture on the target glass, and the UV lamp is started to cure the texture on the target glass.

2. The fully automatic glass transfer control method according to claim 1, characterized in that: Calculate the center coordinates of the target glass, define the center position of the positioning station as the coordinate origin, and calculate the deviation vector between the center coordinates and the coordinate origin, including: The center coordinates of the target glass are calculated as (Xa, Ya), and the center position of the positioning station is defined as the coordinate origin (0,0); Calculate the X-axis deviation vector and the Y-axis deviation vector respectively, wherein the X-axis deviation vector ΔX=Xa-0, and the Y-axis deviation vector ΔY=Ya-0; Determine whether the X-axis deviation vector and / or the Y-axis deviation vector is greater than a set threshold.

3. The fully automatic glass transfer control method according to claim 2, characterized in that: When the deviation vector is greater than a set threshold, the position of the target glass is corrected so that the target glass is located at the center of the positioning station, including: When the deviation vector is greater than a set threshold, the position adjustment motor is controlled to drive the shift component to move the target glass to the target area at a maximum value of a set speed range so that the deviation vector is less than or equal to the set threshold; Calculate the current deviation vector. When the current deviation vector is greater than the adjustment threshold, control the position adjustment motor to drive the shift component to move the target glass in the X-axis direction and / or Y-axis direction at a closed-loop adjustment speed until the current deviation vector is less than the adjustment threshold and the correction is completed. It is defined that the target glass is located in the center of the positioning station.

4. The fully automatic glass transfer control method according to claim 1, characterized in that: Real-time monitoring of ink viscosity and ink temperature, and adjustment of ink viscosity and ink temperature, including: The current ink viscosity is collected by a viscosity sensor, the current ink temperature is collected by a temperature sensor, and an average filtering process is performed on the collected current ink viscosity and current ink temperature; Comparing the viscosity difference between the current ink viscosity and the set ink viscosity threshold, when the viscosity difference is greater than the set value, calculating the temperature adjustment amount according to the ratio between the viscosity difference and the temperature sensitivity coefficient; The current ink temperature is adjusted based on the temperature adjustment amount.

5. The fully automatic glass transfer control method according to claim 1, characterized in that: Adjust roller pressure based on film texture depth and glass thickness, including: The standard roller pressure is calculated according to the formula P1=k1·D+k2·T+P0, where P1 is the standard roller pressure, K1 is the film material texture depth influence coefficient, K2 is the glass thickness compensation coefficient, D is the film material texture depth, T is the glass thickness, and P0 is the preset basic pressure; The current pressure of the pressing roller is collected and adjusted according to the standard pressure of the pressing roller.

6. The fully automatic glass transfer control method according to claim 5, characterized in that: Also includes: The ambient temperature is collected, and based on the collected ambient temperature, the standard roller pressure is corrected by the formula P1=k1D+k2T+α(Tenv-25)+P0, where α is the temperature compensation coefficient and Tenv is the ambient temperature.

7. The fully automatic glass transfer control method according to claim 1, characterized in that: Setting the coating blade pressure based on the glass surface roughness to screen-print UV coating on the target glass includes: Based on the formula P2 = k3·Ra + k4·Ra 2 +Pa calculates the target pressure and adjusts the coating scraper pressure to the target pressure so that the coating scraper performs screen printing UV coating on the target glass at the target pressure, wherein P2 is the target pressure, Ra is the surface roughness of the glass, Pa is the preset basic pressure of the scraper, k3 is the linear response coefficient of the coating scraper pressure to the glass surface roughness, and k4 is the nonlinear coefficient of the coating scraper pressure under corrected high roughness.

8. A fully automatic glass transfer control device, characterized in that: include: Instruction response module: used to respond to the glass transfer instruction and obtain the glass parameters and transfer parameters in the glass transfer instruction, wherein the glass parameters include glass size, glass thickness, and glass surface roughness, and the transfer parameters include coating ink viscosity, coating ink temperature, and coating ink layer thickness; Glass positioning module: used to clamp the target glass and transfer it to the positioning station, collect the edge image information of the target glass, calculate the center coordinates of the target glass, define the center position of the positioning station as the coordinate origin, calculate the deviation vector between the center coordinates and the coordinate origin, and correct the position of the target glass when the deviation vector is greater than the set threshold value so that the target glass is located at the center position of the positioning station; Glass coating module: used to transfer the target glass to the coating station, monitor the ink viscosity and ink temperature in real time, adjust the ink viscosity and ink temperature, set the coating scraper pressure based on the glass surface roughness to perform screen printing UV coating on the target glass, and collect the current coating ink layer thickness in real time to stop the scraper operation when the current coating ink layer thickness meets the coating ink layer thickness; Glass imprinting module: used to transfer the coated target glass to the imprinting station, control the downward movement of the pressing roller, obtain the texture depth of the film material, adjust the pressure of the pressing roller based on the texture depth of the film material and the thickness of the glass, so as to imprint the texture on the film material onto the target glass, and start the UV lamp to cure the texture on the target glass.

9. An electronic device, characterized in that: include: A memory storing executable program code; a processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the full-automatic glass transfer control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program enables a computer to execute the full-automatic glass transfer control method according to any one of claims 1 to 7.

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