Printing ink concave plate printing machine capable of preventing coagulation and demisting and printing method

Abstract

The invention aims at providing an ink gravure printing machine with condensation proof and demisting performance and a printing method of the printing machine. The manufactured printing products have stable quality, good effect and extremely strong market competitiveness. The main point of the invention is that as one of the ink supplying systems of the printing machine, an ink storing cavity is innovated and transformed. The invention is characterized mainly in that an electronic refrigerating device is installed in the bottom of the ink storing cavity and around a groove as a temperature reduction system; an electronic heating device is installed in the bottom of the ink storing cavity and around the groove as a heating up system; an electronic temperature detect probe is installed in a critical area between the ink of the ink groove and a printing plate which is used for detecting, selecting as well as regulating and controlling the temperature of the ink so as to obtain constant temperature of the ink and the printing surface of the printing plate to avoid mirage state appearing on the printing products caused by seasonal temperature changing; two orifice connecting pipelines with the diameter of about 50 to 80mm are opened and an ink circling pump which has an arc extinguishing device to regulate the ink circling are installed in a suitable location which can not affect the operation of the printing machine and the operation function at the bottom of the ink groove.

Description

technical field [0001] The invention relates to an improved gravure printing machine and a printing method, in particular to an ink gravure printing machine capable of preventing condensation and defogging and a printing method. Background technique [0002] In the prior art, a common gravure printing machine includes: a copper plate cylinder with a copper plate attached to the periphery, a pattern roller in rolling contact with the outer surface of the copper plate cylinder, and a conveyable roller in rolling contact with the outer surface of the pattern roller An ink fountain roller for ink, an inking device for the ink fountain roller, and an ink storage device. The ink delivered by the inking device and adhered to the protruding part of the pattern roller is injected into the groove on the copper plate as the pattern part. The ink attached to the non-patterned part is removed, and the ink remaining in the groove is transferred to the printing substrate such as paper bet...

AI Technical Summary

Problems solved by technology

Since the gravure printing machine is equipped with an ink feeding device, an ink fountain roller, and a pattern roller, each part is driven by rolling, the ink transfer mechanism is complicated, and the processing requirements for each part are very high. and precision fit

[0003] Alcohol-soluble inks are often used in high-speed printing. Since the printing substrate is exposed to the air, it has the same temperature as room temperature, and the temperature of the printing plate roller changes during the cycle of use. The temperature of the ink also changes during the production process. Changes, when the contact surface of the printing plate roller and the temperature of the printing substrate and the ink are different, the chemical alcohol used in the ink will produce fog, because the alcohol-soluble ink is in the high-speed printing process, especially in some high-demand The food packaging and printing places in the country are prone to foggy printed matter, resulting in unclear outlines of printed patterns, unexquisite patterns, and poor printing effects.

At the same time, because the alcohol-soluble ink is in contact with the air for a long time, it is prone to condensation, resulting in waste of ink, and if the solidified ink is transported to the copperplate cylinder and embossed on the printing substrate, it will even cause Unable to print a complete pattern, not up to the standards that production should have

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