METHOD AND DEVICE FOR OBTAINING YARN FROM STAPLE FIBERS IN ONE PROCESS OF COMBING, DRAFTING AND TWISTING

摘要

The method and the device find application for obtaining of yarn from staple fibers. In the method the fed fiber band of staple fibers (1) is subjected to combing, as simultaneously with this a drafting with high ratio is accomplished, after which the obtained fiber band (2) is twisted, during which yarn (5) is formed with uniform structure in one continuous process, as the uniformity of the drafted fiber band (2) is measured and respectively the speed of the formed yarn (5) is changed. The device consists of a feeding roller and feeding table as the feeding table (6) is formed by a feeding arc (a) under feeding roller (7) and two main arc like surfaces (ß) and (?), which cover part of the surface of the combing porcupine roller (8), which is perforated and ends near a couple of drafting rollers (9) and (10).