Some insiders told reporters that most of the domestic gravure printing machine manufacturers are mainly concentrated in the low-end market, and there are few companies that compete with foreign manufacturers in the high-end market. Foreign manufacturers have long occupied the domestic high-end gravure printing machine market. . In recent years, with the continuous advancement of the technology of gravure printing machine manufacturing enterprises in China, the performance and quality of domestic gravure printing machines have been able to meet the needs of domestic high-end gravure printing machine users, and have obvious cost performance advantages. Domestic gravure printing machines are in the high-end market. The share continues to expand and the number of high-end gravure presses is decreasing year by year. According to the statistics of the Printing Machine Association, in 2009, China imported a total of 66 gravure printing machine production lines, down 56.86% compared with 2004. The effect of “replacement import†of domestic high-end gravure printing presses has become increasingly prominent. This article will introduce you to the transfer of used gravure printing presses. .
The gravure press blade should be placed at an appropriate height. The blade should be adjusted according to the printing speed. The printing speed is fast, the distance from the embossing point is far, the printing speed is slow, and the embossing point is closer.
The tension control of the unwinding tension zone of the gravure printing press is mainly performed by the uncoiler. Tension control is a main function of the uncoiler, so the control principle of the tension zone is consistent with the working principle of the uncoiler. The clutch, tension roller and tension controller form a closed-loop control system.
During the printing process, the paper is not easy to be separated, the paper on the delivery table is not properly received, or the paper on the paper feeding table is skewed and the overprinting is not allowed, etc., which may be caused by static electricity. To eliminate printing static electricity, a static eliminator is generally installed on the printing machine to ionize the air around the printing machine, thereby neutralizing the positive and negative static electricity on the paper. It is also possible to spray an appropriate amount of water mist around the gravure printing machine or on the back of the impression cylinder to eliminate static electricity on the paper. In addition, increasing the humidity in the printing shop is conducive to the elimination of static electricity.
The technique of transferring the printing and finishing of the printing plate of Jinan gravure printing machine is called printing with the printing plate; the crafting technique of transferring the graphic and text without using the printing plate is called non-printing printing. In general, the printing machine of the Jinan gravure printing machine is mainly composed of a paper feeding portion, a printing portion and a delivery portion.
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