High Speed ​​Gravure Printing Method

Abstract

The invention provides a high-speed intaglio printing method. The high-speed intaglio printing method comprises the following steps of (1) unwinding and feeding, specifically, feeding is conducted at a preset speed through an unwinding traction mechanism; (2) detection of unwinding tension, specifically, the tension of a print base material is detected in real time, and the feeding speed of the unwinding traction mechanism is adjusted according to a result obtained by comparing the real-time tension with a preset tension value; (3) printing, specifically, ink printing is conducted on the surface of the print base material through a printing unit, the print base material is provided with an initial printing mark, and printing is conducted when the initial printing mark reaches a preset position; (4) drying, specifically, the print base material is dried in an oven through a conveying mechanism; (5) cooling, specifically, the print base material is cooled through a cooling roller; and (6) winding and collecting, specifically, the printed print base material is wound through a collecting traction mechanism and is cut, so that a finished product is obtained. According to the high-speed intaglio printing method, equipment speeds are kept consistent, and the printing speed reaches 320 m / min; printing is uniform, and the effect is good; and an adjustment hand wheel provided with a balance weight is arranged.

Description

technical field [0001] The invention relates to printing equipment, in particular to a high-speed gravure printing method. Background technique [0002] The existing unit-type gravure printing machine has the following disadvantages: the overprint accuracy of the unit-type gravure printing machine is the key to ensure the printing quality, and among the many factors affecting the overprint accuracy, the most influential point is the parallelism between the guide rollers, As well as the embossing device, oven heating device, etc., there will be cumulative assembly errors, low installation accuracy, and non-parallel installation of guide rollers, which will affect the overprinting accuracy. Most of the existing unit-type gravure printing machines use an electric heating oven heating device to dry the material film. The structure of the oven heating device is that the external air inlet pipe sucks fresh air into the heating box under the suction of the centrifugal fan, and the ...

AI Technical Summary

Problems solved by technology

[0002] The existing unit-type gravure printing machine has the following disadvantages: the overprint accuracy of the unit-type gravure printing machine is the key to ensure the printing quality, and among the many factors affecting the overprint accuracy, the most influential point is the parallelism between the guide rollers, As well as the embossing device, oven heating device, etc., there will be cumulative assembly errors, the installation accuracy is not high, and the installation of the guide rollers is not parallel, thus affecting the overprinting accuracy

Due to thermal expansion and contraction, the paper will shrink differently on different surfaces with temperature changes, and the printing substrate will be deformed. At present, it is troublesome to adjust the viscosity of the ink according to the temperature and humidity changes of the printing substrate.

There is also a problem to adjust the air-conditioning system of the entire workshop to consume high energy consumption, which increases the production cost of the enterprise

[0004] At the same time, during the operation of the entire gravure printing machine, due to friction, temperature and other reasons, it will change its running speed during the operation process, resulting in defective products or uneven printing, which will affect the printing quality.

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