YARN DEFECT DETECTOR MAINLY IN THICK PLACE OR IN THIN PLACE

摘要

PURPOSE: To properly judge the defect in a thick place or thin place by integrating thickness signal over plural wave forms. ;CONSTITUTION: Signals concerning thickness of a yarn T during running movement are amplified and an abnormal signal exceeding the prescribed sensitivity level is discriminated with a relative circuit 16. A detection signal which passed through a switch circuit 17 in which only abnormal signal is passed through as a detection signal of plural wave forms is completely integrated in integrated state over plural wave forms to the direction of length of yarn in prescribed length range by a complete integration circuit. Whether the integrated value is a defect indicating signal out of prescribed sensitivity level or not is judged with a relative circuit 20 and the defect part is removed through a cutter driving circuit 21 by the defect indicating signal.;COPYRIGHT: (C)1993,JPO&Japio