REGOLATORE DI STIRO PER NASTRI DI CARDA SU UNO STIRATOIO CON UN ORGANO DI MISURA ALL'INGRESSO

摘要

A drawing frame includes an inlet measuring organ sensing a property of a plurality of slivers as they are simultaneously introduced into the drawing frame and emitting a measuring signal representing a magnitude of the property; a regulating drawing unit including a plurality of drawing rolls defining a drawing region along which the slivers are drafted as they run through the drawing frame, a drive for rotating the drawing rolls and a control arrangement for regulating the drive as a function of the measuring signal for varying the draft of the slivers in the drawing region such that mass fluctuations in the slivers are equalized. The control arrangement changes the measuring signal into an actual control signal as a function of operational conditions to compensate for influences derived from the operational conditions and affecting measuring results. The control signal is applied to the drive.