Rieter

Requirements

Index

The drafting arrangement is the heart of the drawframe and thus the part which exerts the most decisive influence on quality. The requirements placed on the drafting arrangement in general are correspondingly high:

  • simple, uncomplicated construction;
  • stable design with smooth running of the rollers (centricity);
  • a mode of operation producing a high-quality product even at high running speeds;
  • high degree of flexibility, i.e. suitability for all raw materials, fiber lengths, sliver hanks, etc., that might be processed in the short staple spinning mill;
  • optimal control over the movement of the fibers during the drafting operation;
  • high precision of both operation and adjustment;
  • rapid and simple adjustability of roller spacings and draft levels;
  • ease of maintenance and cleaning;
  • optimal ergonomic design.