Coating roller system for improving uniformity of surface coating of oriented silicon steel

The invention discloses a coating roller system for improving the uniformity of a coating on the surface of oriented silicon steel, and relates to the technical field of ferrous metallurgy. Comprising an upper coating roller, a lower coating roller and a lifting device. The upper coating roller and the lower coating roller are the same in shape and size. The two roller necks and the roller are welded to form a cavity structure, and the surface of the roller is an arc-shaped body protruding outwards. And a rubber layer with the thickness of 20-25mm covers the surface of the roller. The rubber hardness of the upper coating roller and the rubber hardness of the lower coating roller are different, the surface of the rubber layer is provided with a miniature notch groove, the notch groove in the surface of the rubber layer is divided into a middle area and an end area, the size of the notch groove in the middle area is large, and the size of the notch groove in the end area is small. The service life of the coatin