Printing machine ink roller is divided into two: the ink distribution roller and ink roller train; name implies, is the ink distribution roller acts uniformly transfer the ink, the ink roller train it? In addition to its role in even ink, it also has the following four functions:
1. For the ink roller to turn to provide power, in all the ink rollers, only the squeezing roller is the driving roller. Under the driving of the gear, the squeezing roller drives the other rubber roller and the plate cylinder under the action of friction. Rotation ensures that the plate roll can be transferred to the printing plate synchronously;
Second, better to evenly transfer the ink, when the ink roller rotates, only the circumferential rotation, and the presence of the ink roller can not only provide the circumferential motion dynamics, but also because of its axial movement, it can be in the shaft To the string of ink;
Third, the adjustment of the amount of ink supply, because the size of the printing plate layout is not the same size, may bite large or small, and the ink supply of the ink roller needs to be adjusted according to the layout of the plate, that is, by adjusting the alignment roller relative The starting position of the plate bite is achieved;
Fourth, to reduce the impact of ghosts, what is ghosting? When the distance between the text part and the solid part is just within the diameter of the ink roller, it is very likely that the effect will appear after the printing process. A pale print appears in the field, which is often said in the printing. There are several ways to eliminate shadows and ghosts, and increasing the amount of movement of the ink roller, that is, its axial movement distance, is one of the effective methods;
The existence of each component of the mechanical part of the printing press has one or more functions. Only by constantly exploring and summarizing in our work can we become more familiar and understandable, and then we can flexibly adjust and make the ideal. Products come out to create greater value for the company.
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