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Chromatography system for printing machine

A printing machine and color registration technology, which is applied in the direction of printing machines, printing, general parts of printing machinery, etc., can solve the problems of affecting the registration accuracy, inaccurate signals, difficult color difference, etc., and achieve the improvement of registration accuracy, sensitivity and accuracy, The effect of improving accuracy

Inactive Publication Date: 2011-10-12
WUHAN HUAMAO IND AUTOMATION
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AI Technical Summary

Problems solved by technology

It is difficult for the photoelectric eye to distinguish the color mark when it is yellow, especially when it is light yellow, so that the collected signal is not accurate enough, causing the computer signal processing to fail to make an accurate judgment, which affects the overprinting accuracy
[0003] Due to the inaccurate signal collection by photoelectric eyes at high speeds of domestic printing machines, it has become a major bottleneck restricting the accuracy of high-speed overprinting

Method used

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Embodiment Construction

[0010] The present invention is based on the principle of complementary colors, that is, when complementary colors are juxtaposed, it will cause a strong contrast in color vision, and you will feel that red is redder and green is greener. Complementary color refers to the complementary color relationship formed between a primary color and its corresponding secondary color in the color spectrum.

[0011] A color registration system of the present invention is composed of a color registration control cabinet, a color registration control box, a photoelectric scanning head and a photoelectric encoder, and is characterized in that the color of the registration color mark and the color of the light emitted by the photoelectric eye of the photoelectric scanning head are complementary colors.

[0012] According to the four complementary colors of red and green, orange and blue, yellow and purple, and white and black, the present invention increases the luminous color of the photoelect...

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Abstract

The invention discloses a chromatography system for a printing machine, which consists of a chromatography control cabinet, a chromatography control box, a photoelectric scanning head and a photoelectric encoder, and is characterized in that: the color of a chromatography color mark is complementary with the colors of light rays emitted by a photocell eye of the photoelectric scanning head; the conventional two colors of white and blue of the light rays of the photocell eye are increased to seven luminous colors of red, green, orange, blue, yellow, purple and white; and in the printing process, according to a principle that the color of the color mark is complementary with the colors of the light rays of the photocell eye, the photocell eye capable of emitting the light rays in the seven colors is selected, and the color sensitivity and accuracy of the photocell eye are improved. The chromatography system belongs to the field of printing machine control systems.

Description

technical field [0001] The invention relates to a printing machine color registration system, which belongs to the field of printing machine control systems. Background technique [0002] Existing printing machines, especially gravure printing machines, generally have two types of photoelectric eyes for overprinting and overprinting systems: white light and blue light. It is difficult for the photoelectric eye to distinguish the color mark when it is yellow, especially when it is light yellow, so that the collected signal is not accurate enough, causing the computer signal processing to fail to make an accurate judgment, which affects the overprinting accuracy. [0003] Due to the inaccurate signal collection by photoelectric eyes at high speeds of domestic printing machines, it has become a major bottleneck restricting the accuracy of high-speed overprinting. Contents of the invention [0004] The present invention is designed to overcome the above-mentioned shortcomings...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/16
Inventor 杨峥雄
Owner WUHAN HUAMAO IND AUTOMATION
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