The ink roller of the printing press is divided into two types: uniform ink roller and ink roller; as the name implies, the uniform ink roller plays the role of transfer ink, then the ink roller? In addition to its role in ink distribution, it has the following four major functions:
The first is to provide power for the ink roller rotation. Among all the ink rollers, only the ink roller is the driving roller, which is driven by gears. The ink roller drives the other roller and plate cylinder under the friction force. Synchronous rotation ensures that the printing roller can transfer the ink to the printing plate synchronously;
Second, better ink transfer. When the ink roller rotates, it only rotates in the circumferential direction, and the presence of the ink roller can not only provide the peripheral movement power, but also because of its axial movement, it can also be on the shaft. Mix evenly the ink;
Third, the adjustment of the amount of ink supply, because the size of the printing plate surface area can not be the same, it may be large or small mouth, and the ink supply of the ink roller needs to be adjusted according to the situation of the layout, that is, by adjusting the ink roller relative The starting position of the printing plate mouthpiece is realized;
Fourth, reduce the impact of ghosting. 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 after the printing process, there will be a faint imprint in the field part, which is often called ghosting in the printing. There are several ways to eliminate ghosts, and increasing the skew 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 machine has one or more of its functions. Only by constantly searching and summarizing in the work can we be more familiar and understanding, and can be flexibly adjusted to make an ideal product. For the enterprise to create greater value.
Second, the advantages of a single grid paper packaging box
1. Save costs
Single-sided paper packaging box has obvious advantages in production cost. Because its material is mainly paper, the source is wide and the price is relatively low, so the production cost is relatively low. In addition, the manufacturing process of the single carton is relatively simple, and the production efficiency is high, which further reduces the cost. For catering enterprises and takeout platforms, the use of single-sided paper packaging boxes can effectively reduce packaging costs and improve profitability.
2. Environmentally friendly and lightweight
Environmental protection is another significant advantage of the box. Paper materials come from renewable resources, are highly degradable, and have less impact on the environment after waste. Compared with plastics, metals and other materials that are difficult to degrade, the single-grid paper packaging box has obvious advantages in environmental protection. In addition, the light texture of the paper material makes the single-grid paper packaging box have better portability. Consumers can easily take packaged food home or to the office, while also reducing delivery costs for merchants.
3. Easy to store and carry
The design of the single-grid paper packing box fully considers the storage and carrying needs of users. It is moderate in size, easy to stack, and easy to store in the refrigerator or cabinet. At the same time, the lid of the single-grid paper packing box is tightly designed, which can effectively prevent food from being scattered or spilled during storage and carrying. For delivery platforms, single-sided paper boxes also ensure that food remains intact and hygienic during delivery. In addition, because the paper material has good thermal insulation performance, the single box can also maintain the temperature of the food to a certain extent and improve the dining experience.
Single paper packing box, oil and water proof, easy to operate