Sliver preparation

Abstract

The invention relates to a drafting system for conveying a sliver in the direction of an inlet opening of a vortex chamber of an air-jet spinning device, as well as to a method for operating a drafting system having an exit roller pair and at least one additional drafting system roller pair and/or apron roller pair, by means of which a sliver is supplied at a spinning station of an air-jet spinning machine for the production of a thread to a vortex chamber of an air-jet spinning device of the spinning station, wherein the exit roller pair can be driven decoupled from the at least one additional pair of drafting system rollers and/or apron rollers. In order to provide a method for operating a drawing system having a starting roller pair and at least one further stretching mill roller pair and/or a strand roller pair, and a drawing system, which allows a reliable preparation of the sliver end before the piecing process, it is provided that the starting roller pair is driven for combing the sliver end after a spinning interruption at a predetermined combing speed and the at least one stretching mill roller and/or belt roller pair upstream of the starting roller pair in the sliver direction is stopped or operated at a holding speed associated with the combing speed, which is at most 10% of the combing speed.

Dependencies are inferred from the claim text.