APPLlCATION This machine is used in the Cotton process of fine drawing aner comber．It can improve the evenness，straightness and parallelism of sliver through drawing and drafting ．As a result，the quality of sliver goes up a grade higher． MAIN FEATURES a. Feeding actively through high racks, double can arrangement. b. Flat belt and notched belt are mainly used for transmission.Change of the belt is easy. c. Machine frame uses the combination structure of casting and steel plate. It is simple and pretty. d.Transmission structure of the upper coiler uses the adjustable triangle pulley and belt. The coiler uses a shape of curve oblique tube with a suspension bearing. e. The drafe part is cleaned by the suction fan and the scraper. There is a suction mouth between the feeding roller and the checking roller to guarantee the check precision. f. Automatic can change uses the rotary mechanical type. It is safe and reliable. g.Concentration lubrication system is introduced h.The mechatronical level of the machine is high. It possesses the necessary technology and safe auto-stop equipment. The open loop auto-leveller on-line controls the delivery sliver and sliver unevenness of short and mid segments. This machine has the functions of automatic control and display of count error of delivery sliver, alarm of breakdown stop and display of the breakdown cause.