On-line sheet scanning and guiding technology is a fully automatic detection and control method suitable for high-speed printing by combining the sheet scanning detection technology with the printing quality control technology.
The advantages of this technology are mainly as follows: online detection is fast and accurate, and the repeated process of extracting, measuring and controlling the original sheets is replaced by closed-loop measurement and control, which greatly shortens the time when the sheets reach the target density value; the quality evaluation of the online inspection system is independent. Subject to the operator's subjective judgment, the quality control function is implemented more quickly and conveniently during the operation. At the same time, when the quality of the printed sheet is found to be defective, the operator can solve the problem in time to ensure the stability of the printing quality. The manager can also track the production process according to the test result and improve the management efficiency.
On-line sheet scanning and guiding technology combines LED flash illumination with standard RGB polarizing filters to measure the print quality control strip on the sheet and collect color information from all printed ink areas. The measured color can be up to 7 colors. Then, the information to be inspected collected on the printing production line is transmitted to the system, and compared with the preset standard color information in the system to detect whether the color value of the printed sheet is correct. Finally, the printing and ink supply is automatically adjusted by the operator or the system to realize on-line control of the quality of the printed sheet.
With the development of detection and guidance technology, printing color and registration have been integrated into a complete online print scanning and guiding system, which can realize online color measurement, and can measure and control the quality of printed sheets without manual sampling, which greatly reduces the number of prints. Color registration and school time. At present, the printing time of the 740 mm × 1040 mm web is only required to be detected by 3 sheets, and the correction of the ink amount in the ink area takes only a few seconds. The automatic online print scanning and guiding system can help printing companies greatly improve printing efficiency and bring considerable economic benefits.
On-line sheet scanning and guiding technology is a fully automatic detection and control method suitable for high-speed printing by combining the sheet scanning detection technology with the printing quality control technology.
The advantages of this technology are mainly as follows: online detection is fast and accurate, and the repeated process of extracting, measuring and controlling the original sheets is replaced by closed-loop measurement and control, which greatly shortens the time when the sheets reach the target density value; the quality evaluation of the online inspection system is independent. Subject to the operator's subjective judgment, the quality control function is implemented more quickly and conveniently during the operation. At the same time, when the quality of the printed sheet is found to be defective, the operator can solve the problem in time to ensure the stability of the printing quality. The manager can also track the production process according to the test result and improve the management efficiency.
On-line sheet scanning and guiding technology combines LED flash illumination with standard RGB polarizing filters to measure the print quality control strip on the sheet and collect color information from all printed ink areas. The measured color can be up to 7 colors. Then, the information to be inspected collected on the printing production line is transmitted to the system, and compared with the preset standard color information in the system to detect whether the color value of the printed sheet is correct. Finally, the printing and ink supply is automatically adjusted by the operator or the system to realize on-line control of the quality of the printed sheet.
With the development of detection and guidance technology, printing color and registration have been integrated into a complete online print scanning and guiding system, which can realize online color measurement, and can measure and control the quality of printed sheets without manual sampling, which greatly reduces the number of prints. Color registration and school time. At present, the printing time of the 740 mm × 1040 mm web is only required to be detected by 3 sheets, and the correction of the ink amount in the ink area takes only a few seconds. The automatic online print scanning and guiding system can help printing companies greatly improve printing efficiency and bring considerable economic benefits.
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