The structure of the gravure printing machine, the role of paper, ink, printing, drying, collecting five parts and the role of printing machinery knowledge – Features – Classification This article mainly introduces the structure of the gravure printing machine, consisting of five parts: paper feeding, ink delivery , printing, drying, receiving paper, etc. Know how.
The gravure printing machine is the main structure of the paper, used for ink, printing, drying, and collecting five parts.
1. The paper part of the gravure printing machine is a single sheet of paper to continuous paper, and the gravure roll machine uses paper continuously to the paper.
2. The plate cylinder and the platen roller in the plate cylinder are arranged vertically, horizontally, tilted 3, and the plate cylinder is arranged at the bottom. Usually each unit has a plate cylinder and an impression cylinder. In order to increase the printing pressure, some have two impression cylinders.
3. The gravure printing machine immerses the plate cylinder part in the ink tank directly through the ink and ink tank through the dip roller to the ink to the plate cylinder indirect ink, and the high speed machine also uses the inkjet method.
4. The dry part of the gravure printing machine is hot air heated by electric heating or steam, and some are dried by infrared or far infrared printing.
5. The receiving portions of the paper are stacked into a pile of paper, and the paper is folded or folded into a good roll. The structure of the printed portion of the web multicolor gravure printing press has two types: an organic group type and a satellite type. The former is set according to the required number, each unit has a plate cylinder and 1 to 2 impression cylinders, and the re-extraction portion of the paper is used. The satellite four-color gravure printing machine has a large impression cylinder and four sets of plate cylinders in the printing section. There will be a combination of gravure and lithographic or letterpress, die-cutting, etc. to suit the different requirements of the printed matter.