Method, equipment and system for improving laser efficiency of screen printing plate and storage medium

Abstract

The invention relates to a method, equipment and system for improving the laser efficiency of a screen printing plate and a storage medium. The method comprises the steps that S1, a laser device, a galvanometer and a platform jig are adjusted to preset working conditions; s2, enabling a laser to work a first target pattern at a preset offset focus and a preset speed; s3, after the laser completes the first target pattern, closing the laser at a first preset time delay, skipping to a second target pattern at a preset skipping speed, and opening the laser at a second preset time delay; and the step S3 is repeated until all the target patterns are operated, and the target printing screen is obtained. According to the method for improving the laser efficiency of the screen printing plate, the laser jumping speed is increased, the laser aging of the whole screen printing plate is reduced, the laser aging of the whole screen printing plate is reduced through high-speed marking, the staying time of laser on a steel wire is shortened, and damage to the steel wire is reduced. The inner and outer cutters use a positive focus mode to reduce the line PS value. And the laser delay is reduced, so that the laser full-page duration is reduced.

Description

Technical Field

[0001] This invention relates to the field of screen printing technology for photovoltaic printing, and specifically to a method, equipment, system, and storage medium for improving the laser efficiency of screen printing. Background Technology

[0002] Laser technology is advancing towards higher precision and efficiency in screen printing applications such as printing stencils and circuit board stencils. Modern laser processing emphasizes high-precision motion control and intelligent parameter management. For precision applications like screen printing, ensuring stable laser focus, accurate motion trajectory, and real-time adjustable power are crucial for guaranteeing quality.

[0003] However, the parameters commonly used in lasers at present are low jump, low speed, and focus offset. Low jump increases the laser duration of the entire screen, low speed increases the laser duration of the entire screen and also causes some damage to the steel wire. Focus offset directly increases the PS value of the lines and also increases the laser duration of the entire screen. Laser delay also increases the laser duration of the entire screen. This solution has problems such as low production efficiency, unstable processing quality and low product yield. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a method, device, system and storage medium for improving the efficiency of screen printing lasers, in order to solve the problems of low production efficiency, unstable processing quality and low product yield caused by the low jump, low speed and focus offset operation mode of lasers in the prior art.

[0005] This invention provides a method for improving the laser efficiency of a screen printing plate, comprising: Step S1: Adjust the laser, galvanometer, and platform fixture to the preset working conditions; Step S2: The laser is operated on the first target pattern at a preset focus and preset speed; Step S3: After the laser completes the first target pattern, the laser is turned off after a first preset delay, jumps to the second target pattern at a preset jump speed, and turns on the laser after a second preset delay. Repeat step S3 until all target graphics are obtained, thus obtaining the target printing screen.

[0006] Optionally, in step S1, the preset operating condition settings of the laser include: The laser exit spot is circular, and there is no abnormal light around the laser exit spot. The water tank temperature is controlled at 22±0.2℃.

[0007] Optionally, in step S1, the preset operating conditions of the galvanometer include: Through physical calibration and software calibration, the horizontal level of the galvanometer is kept within 30 μm.

[0008] Optionally, in step S1, the preset working condition settings for the platform fixture include: Adjust the platform fixture level to within 20μm.

[0009] Optionally, in step S2, the preset focus of the laser is set to: inner blade focus 0, outer blade focus 0; the preset speed of the laser is set to: fine grid outer blade speed is set to 1000mm / s.

[0010] Optionally, in step S3, the first preset delay is set to 100μs, the second preset delay is set to 100μs, and the preset jump speed is set to 600mm / s.

[0011] Alternatively, the laser may be an ultraviolet picosecond laser.

[0012] This invention provides a device for improving the efficiency of laser printing on screens, comprising an ultraviolet picosecond laser, a galvanometer system, and a fixture platform. The laser screen printing device uses the aforementioned method for improving the efficiency of laser printing on screens to produce the target printing screen.

[0013] This invention provides a system for improving the efficiency of laser scanning on a screen printing plate, comprising: At least one processor; and, A memory that is communicatively connected to at least one processor; wherein, The memory stores instructions that can be executed by at least one processor, which enables the at least one processor to perform the aforementioned method for improving the efficiency of screen printing laser.

[0014] The present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the aforementioned method for improving the efficiency of screen printing laser.

[0015] The beneficial effects of this invention are: The laser beam passes through a beam expander, a reflector, a galvanometer, and a field lens to reach the target screen. After completing a stroke or graphic, the laser head turns to the next position. Compared to existing solutions, such as a jump speed of 200 mm / s, the laser jump speed in this embodiment is set to 600 mm / s, which reduces the laser efficiency of the entire screen.

[0016] When the laser performs actual marking on the screen, the galvanometer's movement speed is increased to balance efficiency and quality. High-speed marking requires a high-performance galvanometer; otherwise, it may cause squealing or positioning deviations. The line quality is observed by filling the pattern, and the speed is gradually adjusted to the optimal level. In a specific embodiment, the laser's fine grid outer blade speed is set to 1000 mm / s.

[0017] The inner and outer blades use a positive focus method. Specifically, the inner / outer blade defocus is set to 0, which reduces the PS value of the lines and reduces the focus switching of the laser head during the operation of different graphics, thereby reducing the laser plate-wide processing time.

[0018] In the screen cutting process, laser delay is a critical process parameter used to control the timing of laser pulses, ensuring cutting accuracy and the quality of line cutting on the screen. Laser delay primarily affects the energy control at the start and end points of processing, preventing burnt lines or incomplete cuts caused by laser switching lag when marking patterns on the screen. By precisely adjusting the delay parameter, the heat-affected zone can be reduced, improving the smoothness of line edges. Compared to the existing 200μs delay, the delay parameter in this embodiment is set to 100μs. Attached Figure Description

[0019] The features and advantages of the invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the invention in any way. In the drawings: Figure 1 A flowchart of a method for improving the laser efficiency of a screen printing plate according to an embodiment of the present invention is shown; Figure 2 A structural diagram of a system for improving the efficiency of screen printing laser is shown in an embodiment of the present invention. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] like Figure 1 As shown, this embodiment of the invention provides a method for improving the laser efficiency of a screen printing plate, comprising: Step S1: Adjust the laser, galvanometer, and platform fixture to the preset working conditions.

[0022] In this embodiment, the galvanometer system is adjusted to a horizontal level within 30μm through physical calibration and software calibration, the platform fixture is adjusted to a horizontal level within 20μm, and the laser water tank temperature is controlled at 22±0.2℃, which is the preset working condition.

[0023] Step S2: The laser is used to process the first target pattern at a preset focus and preset speed.

[0024] In this embodiment, the inner and outer blades of the laser are in a positive focus manner, the inner / outer blades are defocused by 0, and the speed of the outer blade of the laser fine grid is set to 1000mm / s.

[0025] Step S3: After the laser completes the first target pattern, the laser is turned off with a first preset delay, jumps to the second target pattern with a preset jump speed, and turns on the laser with a second preset delay.

[0026] In this embodiment, the first preset delay is set to 100μs, the second preset delay is set to 100μs, and the preset jump speed is set to 600mm / s.

[0027] Taking a 5W ultraviolet picosecond laser and a 355nm galvanometer system as an example, the following is a detailed process of a laser screen printing method in this embodiment: The laser beam passes through a beam expander, a reflector, a galvanometer, and a field lens to reach the target screen. After completing a stroke or graphic, the laser head turns to the next position. Compared to existing solutions, such as a jump speed of 200 mm / s, the laser jump speed in this embodiment is set to 600 mm / s, which reduces the laser efficiency of the entire screen.

[0028] When the laser performs actual marking on the screen, the galvanometer's movement speed is increased to balance efficiency and quality. High-speed marking requires a high-performance galvanometer; otherwise, it may cause squealing or positioning deviations. The line quality is observed by filling the pattern, and the speed is gradually adjusted to the optimal level. In a specific embodiment, the laser's fine grid outer blade speed is set to 1000 mm / s.

[0029] The inner and outer blades use a positive focus method. Specifically, the inner / outer blade defocus is set to 0, which reduces the PS value of the lines and reduces the focus switching of the laser head during the operation of different graphics, thereby reducing the laser plate-wide processing time.

[0030] In the screen cutting process, laser delay is a critical process parameter used to control the timing of laser pulses, ensuring cutting accuracy and the quality of line cutting on the screen. Laser delay primarily affects the energy control at the start and end points of processing, preventing burnt lines or incomplete cuts caused by laser switching lag when marking patterns on the screen. By precisely adjusting the delay parameter, the heat-affected zone can be reduced, improving the smoothness of line edges. Compared to the existing 200μs delay, the delay parameter in this embodiment is set to 100μs.

[0031] This invention provides a laser screen printing equipment, including an ultraviolet picosecond laser, a galvanometer system, and a fixture platform. The laser screen printing equipment uses the aforementioned method to improve the laser efficiency of the screen printing to produce the target printing screen.

[0032] This invention provides a laser screen printing system, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the aforementioned method for improving the laser efficiency of the screen printing.

[0033] like Figure 2 As shown, the laser screen printing system may include a processor 1 and a memory 2, wherein the processor 1 and the memory 2 can be connected via a bus or other means; the figure shows an example of connection via a bus. The processor 1 can be a central processing unit (CPU). The processor 1 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations thereof.

[0034] Memory 2, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the laser screen printing method in the embodiments of the present invention. Processor 1 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions, and modules stored in memory 2, thereby realizing the laser screen printing method in the above method embodiments.

[0035] The memory 2 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created by the processor 1, etc. Furthermore, the memory 2 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 2 may optionally include memory remotely located relative to the processor 1, and these remote memories may be connected to the processor 1 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0036] The one or more modules are stored in the memory 2, and when executed by the processor 1, they perform the following: Figure 1 The laser screen printing method shown in the embodiment.

[0037] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium can also include combinations of the above types of memory.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for improving the efficiency of screen printing laser, characterized in that, include: Step S1: Adjust the laser, galvanometer, and platform fixture to the preset working conditions; Step S2: The laser is used to work on the first target pattern at a preset focus and preset speed; Step S3: After the laser completes the first target pattern, the laser is turned off after a first preset delay, jumps to the second target pattern at a preset jump speed, and turns on the laser after a second preset delay. Repeat step S3 until all target graphics are obtained, thus obtaining the target printing screen.

2. The method for improving the laser efficiency of a screen printing plate according to claim 1, characterized in that, In step S1, the preset operating conditions of the laser include: The laser exit spot is circular, and there is no abnormal light around the laser exit spot. The water tank temperature is controlled at 22±0.2℃.

3. The method for improving the laser efficiency of a screen printing plate according to claim 1, characterized in that, In step S1, the preset operating conditions of the galvanometer include: Through physical calibration and software calibration, the horizontal level of the galvanometer is kept within 30 μm.

4. The method for improving the laser efficiency of a screen printing plate according to claim 1, characterized in that, In step S1, the preset working conditions of the platform fixture include: Adjust the platform fixture level to within 20μm.

5. The method for improving the laser efficiency of a screen printing plate according to claim 1, characterized in that, In step S2, the preset focus setting of the laser is: inner blade focus 0, outer blade focus 0; the preset speed setting of the laser is: fine grid outer blade speed is set to 1000mm / s.

6. The method for improving the laser efficiency of a screen printing plate according to claim 1, characterized in that, In step S3, the first preset delay is set to 100μs, the second preset delay is set to 100μs, and the preset jump speed is set to 600mm / s.

7. The method for improving the laser efficiency of a screen printing plate according to claim 1, characterized in that, The laser is an ultraviolet picosecond laser.

8. An apparatus for improving the efficiency of laser scanning on a screen printing plate, characterized in that, The device includes an ultraviolet picosecond laser, a galvanometer system, and a fixture platform, wherein the device for improving the laser efficiency of the screen printing plate is used to produce the target printing screen by performing the operation according to any one of claims 1 to 7.

9. A system for improving the efficiency of screen printing laser, characterized in that, include: At least one processor; as well as, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the method for improving the efficiency of screen printing laser as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the method for improving the efficiency of screen printing laser as described in any one of claims 1 to 7.

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