Gravure printing machine squeegee adjustment method

With the continuous development of social development, people's requirements for external packaging are also increasing. The main advantage of gravure printing is that the image is rich in color and thick in color. The main advantage of gravure printing determines that the fine outer packaging generally requires gravure printing. However, there are many factors that affect the quality of gravure printing products, such as: the impact of the environment, the technical level of the operator, the quality of the ink, the quality of the equipment, and so on. The effect of the squeegee on the quality of intaglio printing is particularly important. The quality of the squeegee adjustment not only directly affects the quality of the printed product, but also has a great influence on the life of the squeegee.

In order to facilitate the adjustment of the squeegee and ensure the quality of the printed product, the ink on the plate roller can be scraped cleanly without the occurrence of knife wire or fog defects. Therefore, the squeegee mechanism is divided into several functional devices. The functional components mainly include a driving device for squeezing the blade left and right, a squeegee blade separating and pressing device, a squeegee blade lifting device, a squeegee blade angle adjusting device and a blade squeegee device. Some of the left and right squeegee blades are driven by a separate motor, and some are driven by the main drive and then decelerated by the worm gear. The clutch pressure of the squeegee is achieved through the air-to-air shutoff of the squeegee. Its function is mainly to make the squeegee contact or Off-print roller; squeegee blade lifting device is realized by rack and pinion, which can realize pressure adjustment; squeegee blade angle adjustment is realized by worm gear and worm, suitable angle is crucial; scraper plate clamp device consists of upper clamp plate , Lower splint, scraper pad and scraper blade make it easy to adjust the amount of blade extension.

The function parts of each part of the squeegee mechanism affect the quality of the printed product from different aspects. Therefore, the adjustment of the squeegee is very important. It has been found in long-term production practice that as long as the functional devices of the squeegee mechanism are properly adjusted before printing, the defects that affect the quality of the printed product can be avoided.