Roller paint work is the first thing is the roller brush, according to the layout can be divided into European, American and Swedish three categories, European roller brush selection is a straight insert roller brush frame, the roller has a core, the application process holds the core tightly hold the roller brush frame beam, the roller to hold the core as the middle roll, The axial and radial wobble of the drum is composed of the space in which the drum holds the core and the difference between the axial and radial dimensions of the core. European roller wool sleeve generally adopts bonding and sewing technology, due to the bulge of hot melt technology, the formation of the United States to change the layout of Europe, with equipment directly connected roller brush head, but the principle has not changed.

The American roller brush is a device for directly connecting the brush roller head. The American layout is characterized by the appearance of cage, which is composed of the front cap, the back cap and the ribs connecting the front back cap. The cage is generally composed of 4-5 ribs. The head of the brush roller holder is threaded and the rear part is dotted. The radial is determined by the difference between the size of the nut and the dot loose and the size of the caao equipment, and the axial momentum is determined by the difference between the diameter of the positive back cap and the transverse ironing diameter of the paint brush holder. American paint brush holder seal elastic clamp the inner wall of the rolling brush head.

The Swedish type brush roll holder and the American type brush roll holder are used for the device of the directly connected brush roll head. Compared with the layout of the American type, the back cap of the tube bundle is moved at the back end of the brush roll holder, and both sides of the positive cap are dotted, which is used to manipulate the radial wobble of the drum. The axial wobble control method is the same as that of the American type. The Swedish roller brush holder is tight on the inner wall of the roller brush head by the elastic clamp of the positive cap.