Full-automatic pre-color-register method

A fully automatic, color register technology, applied in printing, printing machines, general parts of printing machinery, etc., can solve the problems of time-consuming, labor-intensive, high rejection rate, etc., achieving a high degree of automation, fast error correction response, and less loss of pre-registered waste products Effect

Active Publication Date: 2017-06-13
SHAANXI BEIREN PRINTING MACHINERY
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fully automatic pre-registration method, which solves the problems of hig

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Take the pre-register method of a five-color (a total of five color groups) printing machine as an example

[0041] Start-up operation, tension input, ink distribution and other preparations before startup. After the printing material is smoothly fed, the ink volume is uniform, and the tension is stable, the printer will print in conjunction.

[0042] First read the preset phases of the five color groups:

[0043] PU1 (the preset phase of the first color group): 0 PU2 (the preset phase of the second color group): 29.7 PU3 (the preset phase of the third color group): 3.2PU4 (the preset phase of the fourth color group): 304.1PU5 (the preset phase of the fifth color group): 376.1

[0044] The plate roller is automatically positioned to the phase of reading. After all the color groups are positioned, the entire color group is pressed. Because each color group is equipped with a photoelectric eye, it can identify the color mark printed by the current color group. In this process, ...

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PUM

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Abstract

The invention discloses a full-automatic pre-color-register method. The full-automatic pre-color-register method comprises the following steps that color cell phases are preset, and a photoelectric eye is additionally arranged on a first color cell; a printing machine is started; all the color cells are positioned according to the preset phases; all the color cells are laminated; color codes of all the color cells are detected through photoelectric eyes on all the color cells, the condition that the color codes are not detected is processed till the color codes of all the color cells are detected; expect the first color cell, the code form longitudinal errors of the current color cells and the previous color cells are read by the photoelectric eyes on the rest of the color cells, and the condition that the longitudinal errors are not in the range of -5-5 mm is processed till the read longitudinal errors are in the range of -5-5 mm; and the longitudinal errors in the range of -5-5 mm are corrected, the longitudinal errors is corrected to be in the range of -2-2 mm, and the pre-color-register process is completed. By the adoption of the full-automatic pre-color-register method, the problem that manual operation is adopted for the pre-color-register in the printing process, and consequently the rejection rate is large is solved.

Description

Technical field [0001] The invention belongs to the technical field of printing color registration, and relates to a fully automatic pre-coloring method. Background technique [0002] For traditional electronic axis printing machines, the current electronic axis control system can realize automatic overprinting during the printing process, but in the early stage of printing, the operator needs to manually complete the pre-registering work. This part is subject to the experience and accuracy of the operator Lower, the scrap rate generated in the pre-coloring process is large, time-consuming and labor-intensive. Summary of the invention [0003] The purpose of the present invention is to provide a fully automatic pre-registering method, which solves the problems of high reject rate, time-consuming and labor-intensive pre-registering during printing. [0004] The technical scheme adopted by the present invention is a fully automatic pre-coloring method, which specifically includes the...

Claims

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Application Information

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IPC IPC(8): B41F33/00
CPCB41F33/0036
Inventor 薛志成李征陈明辉
Owner SHAANXI BEIREN PRINTING MACHINERY
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