Patent ID: 6065333
Filing Date: 2000-05-23
Classification: B65H,D01H

Abstract:
Apparatus for monitoring a yarn in an operating yarn spinning or spooling frame while the yarn is moving in its lengthwise direction through a working point in such spinning or spooling frame, comprising a measuring head and an evaluation unit spatially separate from the measuring head; said measuring head comprisinga first part for sensing said moving yarn according to a first operating principle and producing electrical signals in response thereto, said first part being adapted for addition onto said spinning or spooling frame adjacent the thread path at said working point and including a side surface and a first measuring gap in one edge portion thereof through which said yarn passes;a second part for sensing said moving yarn according to a second operating principle and producing electrical signals in response thereto; said second part resting against said side surface and being releaseably attached directly to said first part and having a second measuring gap in an edge portion thereof in alignment with said first measuring gap, said second part being electrically connected to said first part through a plug and socket connection;said evaluation unit being connected electrically to said first part of said measuring head and comprising a first part for evaluating electrical signals produced by said first part of said measuring head, a second part for evaluating electrical signals produced by said second part of said measuring head, and means providing a releasable mechanical and electrical connection of said second part of said evaluation unit to said first part of said evaluation unit.