Improved intaglio printing press registration method

Abstract

The invention belongs to the technical field of intaglio printing presses, and particularly relates to an improved intaglio printing press registration method. The method comprises the following steps: S1, performing cursor printing: enabling paper unfolded by an uncoiler to enter a printing group, and printing a cursor by cursor printing blocks on two sides; S2, tracking the cursor through a computer registration system to perform comparison and calibration, and detecting a signal reaction effect at the same time; S3, performing fine adjustment of a photoelectric probe: finely adjusting the position of the photoelectric probe, performing calibration through the computer registration system, and fixing the photoelectric probe after the calibration is completed; S4, cleaning a cursor probe,checking whether an electric eye light-emitting bulb of the photoelectric probe is burnt out and whether dust falls on the mirror surface of the photoelectric probe, replacing the electric eye light-emitting bulb and cleaning the dust, and carefully observing the overprinting waveform of a computer until a cross identification in a printing hue is stable; and S5, after checking and cleaning are completed, testing the printing effect until a finished product with the accurate and clear pattern color is printed.

Description

technical field [0001] The invention belongs to the technical field of gravure printing machines, and in particular relates to an improved registration method of a gravure printing machine. Background technique [0002] The gravure printing machine is mainly composed of uncoiler, guiding group, printing group, slitting group and control group. The uncoiler is mainly to complete the unwinding of the roll paper under certain speed and tension conditions, and maintain the corresponding stable state, and at the same time complete the automatic or manual splicing of the roll paper. The main function of the guide group is to ensure that the paper web does not deviate laterally during the printing process, and at the same time ensure that the tension of the paper is stable. The printing group is the main component of the gravure printing machine, which completes the main process of printing, including ink supply, printing, drying, etc. The slitting group cuts the printed semi-fin...

AI Technical Summary

Problems solved by technology

[0003] Before printing on the gravure printing machine, it is necessary to position the printing cursor on the paper. Improper positioning will lead to inaccurate overprinting; due to the high interference of the front cursor on special paper, it will affect the photoelectric probe to sense the cursor, and the external mirror of the photo

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