There are two types of ink rollers in printing presses: ink leveling rollers and ink inking rollers; as the name implies, ink inking rollers function to equalize ink, so what about ink inking rollers? In addition to its function of leveling ink, it also has the following four major functions:
1. Provide power for the ink roller transfer. In all the ink rollers, only the ink inking roller is the driving roller. Driven by the gear, the ink inking roller drives the other rubber roller and plate cylinder to synchronize with the friction force. The rotation ensures that the ink can be transferred to the printing plate synchronously by the plate roller;
Second, the ink is evenly distributed. When the ink roller rotates, it only rotates in the circumferential direction. The presence of the ink roller can not only provide circumferential motion power, but also because of its axial movement, it can also be on the shaft. Ink evenly;
3. The adjustment of the amount of ink supply, because the graphic area of ​​the printing plate cannot be all the same, the bite may be large or small, and the ink supply of the ink roller needs to be adjusted according to the situation of the layout, that is, by adjusting the relative To achieve the starting position of the plate bite;
4. To reduce the influence of ghosts, what are ghosts? When the distance between the text part and the solid part is just within the diameter range of the ink roller, it is very likely that the effect will appear after the printing process. There is a light imprint on the solid part, which is often said in printing. There are several ways to eliminate shadows and ghosts, and increasing the tandem of the ink roller, that is, its axial movement distance, is one of the effective methods;
The existence of each part of the mechanical part of the printing press has one or more functions. Only by we continue to explore and summarize in our work can we be more familiar with and understand, and can flexibly adjust to make the ideal. The products come out and create greater value for the enterprise.
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