Principles of tinplate coating
The rotating stainless steel feeding roller is half immersed in the feeding pan, and the paint brought up is transferred to the rubber cylinder through the leveling roller. There is an impression cylinder under the blanket cylinder with a gripper device inside. When the tinplate runs to the squeegee, the impression cylinder grips one end of the iron sheet, and the squeegee and impression cylinder cooperate to push the tinplate through to complete the printing operation. The thickness of the coating is controlled by the feed roller, screed roller, and the gap between the blanket cylinder and the impression cylinder. Because there is a gap between the tinplate sheets, a small amount of paint is taken away by the impression cylinder. Use a scraper to scrape off the impression cylinder (avoid material on the back of the iron coating), and the scraped paint flows into the receiving tray, and then flows back to the storage bucket through the conduit and recycled.
(To be continued)