Method and apparatus for the detection of foreign materials in moving textile materials
AssigneeBarco N.V.
InventorPatrick Bouvyn
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Abstract
A method and an apparatus for detecting foreign fibers in a moving textile material, in particular in moving threads, yarns or slivers, include providing a probe for picking up triboelectric signals from the moving textile material and comparing the output of the probe with a reference value to provide a signal representative of detection of a foreign fiber in the textile material. The apparatus may be used in a card, a drawing bench, a ring spinning machine, an air-jet spinning machine, an open-end spinning machine, a chemical spinning machine, a bobbin winding machine a doubling machine, a combing machine, a bobbin frame, a texturing machine or a loom.
Claims24
A method for detecting discrete foreign fibers in a moving textile material, in particular in moving threads, yarns or slivers, comprising the steps of:
- generating relative motion between the textile material and a probe;
- measuring triboelectric signals picked up by the probe from the textile material;
- comparing the measured triboelectrical signals with a value representative of the textile material without foreign fibers;
- and
- determining from the result of the comparison whether a discrete foreign fiber is present in the textile material.
An apparatus for detecting discrete foreign fibers in a moving textile material, in particular in moving threads, yarns or slivers, comprising:
- a probe for picking up triboelectric signals from the textile material;
- a comparator for comparing an output of the probe with a reference value and being adapted to provide a signal representative of detection of a discrete foreign fiber in the textile material and means responsive to the detection signal for determining whether a discrete foreign fiber is present in the textile material.
Dependencies are inferred from the claim text.