Rieter

General

Index

The spinning box is an independently functioning unit. Opening rollers and rotors are driven centrally via tangential belts. On some spinning systems sliver intake is performed by means of a continuous feed shaft. The rotor housings are accessible via a hinged  opening unit both manually and by means of an operating robot. Manual checking and replacement of the spinning elements as well as automatic  cleaning of the rotor and draw-off nozzle by the operating robot can therefore be performed very easily. The spinning unit essentially consists of the following functional units (Fig. 8 + Fig. 9):

  • Sliver feeding via sliver funnel (a), intake cylinder and feed table (b);
  • Opening of the fiber sliver into individual fibers by means of opening roller (c);
  • Trash removal:
  • Fiber transport to and feeding into rotor (d);
  • Yarn take-off via draw-off nozzle and draw-off tube (f).

The main difference between rotor spinning machines from different manufacturers is in spinning geometry. This starts with the opening of the sliver into individual fibers, optimal trash removal paying particular attention to the opening roller, and yarn formation in the rotor, and continues to the geometry of yarn take-off by the draw-off tube. Attention is drawn to substantial differences.

Fig. 8 – Front view of spinning box with opening roller and sliver intake

Fig. 9 – Spinning box cross-section