We use the horizontal moving structure for mechanical: by the motor, gear reducer, worm gear pair, screw pair composed. The device is located outside the bed, easy to maintain and adjust, while the lower roller bearing seat has a larger space, the use of rolling bearings, reduce the power of the main motor, save energy consumption, easy to lubricate. The screw pair has self-locking characteristics and good synchronization. In horizontal moving work, the upper roll is not pressurized, it only bears the sheet material、The sliding friction force brought by the self-weight of the lower roller and the supporting roller, so the working characteristics of the horizontal mobile device are large static load and small dynamic load, requiring accurate rigid positioning. The body of the machine adopts tie rod preload combination frame structure, and the main components are steel plate welding structure, which needs to be annealed at high temperature to eliminate the internal stress. The guide rail of the slide block adopts four corners and eight sides guide rail guide, the guide rail adopts copper base alloy material, and the adjustment guide rail guide copper plate adopts upper and lower overall structure to improve the allowable surface stress.