Abstract: The present invention relates to the application of fiber length measurement in the blowroom or carding room of a spinning mill. A method and an apparatus in a textile processing machine are described in which before and/or after a working element of the textile processing machine the nep count and/or the fiber length (staple) is determined, with an open-loop/closed-loop control unit being provided which receives the values for the fiber length and/or the nep count as input and determines therefrom the optimized machine setting data and outputs the same to at least one actuator of a working element which influences the nep count and/or the staple of the textile processing machine.

Abstract: The invention relates to a method for controlling the draft of a fiber mixture (e.g. a sliver) of a textile machine, with sensors being provided which detect the fluctuations in mass of the fiber mixture which is supplied to a drafting arrangement unit including at least one changeable drafting zone which compensates the fluctuations in mass. A delay time is provided in order to take into account the running time of the fiber mixture from the measuring sensor up to a control application point. A method is therefore proposed whereby, for the purpose of changing certain control parameters, the delivery speed of the fiber mixture and/or the comparison of the measured progress of the mass of the fiber material supplied by the drafting arrangement unit with a predetermined setpoint progress of mass (setpoint) are used.

Abstract: In a fiber-processing machine with a separating edge, in which both fibers as well as air are guided past the edge in a substantially predetermined conveying direction, air layers loaded with dirt particles or waste are deflected by means of the edge from the stream of fibers/air. The removal of dirt is aided at first by means of blast air.