Features:●Mechanical-electrical integration design：Front roller is controlled singly by the electrical transmission frequency converter, the second roller and the third roller are separately actuated by two servo motors, with the differential device of the old auto-leveller cancelled.●Driving type：In the drawing mechanism and the detection mechanism all adopt circular tooth synchronous belt drive for eliminating back lash, the drive is reliable and the drawing is stable.●Drawing mode：Adopts the drawing mechanism of Three-up-three-down plus pressure bar, it can effectively control the floating fiber in the draft field and improve the stability of the draftability.●Auto-leveling system：It is a digitization system, in the system interior all data transfer is digital, the transmission is achieved by the field bus. Binocular is separately controlled.●Leveling mode：Adopts the fuzzy control algorithm.●Machine operation control method：If wanted to change machine’s speed and drafting multiple, do not need to exchange gear or belt pulley, only need to utilize the dialog box on the touch screen to change the number.●Production control：By using the PLC, we can achieve the whole machine’s production automation control reliably.●Feasible workshop computer integration control：All the manufacturing parameters of the drawing frame can connect with the computer by the network interface. It lays a foundation to achieve the workshop computer management.