Patent ID: 8904742
Filing Date: 2014-12-09
Classification: D01H

Abstract:
1. A process for operating an air jet spinning machine having at least one spinning station with a vortex chamber, wherein a fiber strand is fed in a spinning direction to the vortex chamber and receives a twist in the vortex chamber such that a twisted yarn is formed from the fiber strand in a spinning process and is withdrawn from the vortex chamber by a withdrawal device, the process comprising: monitoring the withdrawn yarn with a monitoring device downstream of the vortex chamber; upon detection of a yarn fault, interrupting the spinning process in a manner such that the yarn detaches from the fiber strand and forms a yarn end; subsequent to interruption of the spinning process, performing a piecing process with the yarn end by: resuming the spinning process by continued feed of the fiber strand and withdrawal of the formed yarn from the vortex chamber.