Patent ID: 6210143
Filing Date: 2001-04-03
Classification: B65H,D01D

Abstract:
An apparatus for producing yarns comprising:a spinning device having spinning packs for extruding molten polymer to form first and second groups of yarns;at least one yarn feeding roller for feeding the first and second groups of yarns;a first winder having a spindle for winding the first group of yarns on tubes arranged on said spindle of the first winder;a second winder having a spindle for winding the second group of yarns on tubes arranged on said spindle of said second winder, said first and second winders being arranged to receive said first and second groups of yarns commonly from said at least one yarn feeding roller;a first yarn breakage detector arranged between said at least one yarn feeding roller and said first winder for detecting breakage of at least one of the yarns belonging to the first group of yarns;a second yarn breakage detector arranged between said at least one yarn feeding roller and said second winder for detecting breakage of at least one of the yarns belonging to the second group of yarns;a first yarn cutting and sucking device disposed between said spinning device and said at least one yarn feeding roller and operative in response to a yarn breakage detection signal to cut and suck said first group of yarns;a second yarn cutting and sucking device disposed between said spinning device and said at least one yarn feeding roller and operative in response to a yarn breakage detection signal to cut and suck said second group of yarns;wherein said first yarn cutting and sucking device and said first winder form a first winding unit, said second yarn cutting and sucking device and said second winder form a second winding unit, and said first and second winding units share said at least one yarn feeding roller; andat least one yarn path control guide arranged near said at least one yarn feeding roller and including a first set of guide elements for guiding the first group of yarns and a second set of guide elements for guiding the second group of yarns so that yarns of said first and second groups are alternately positionable along the length of said at least one feeding roller, one of said first and second sets of guide elements being movable while the other of said first and second sets of guide elements are guiding the corresponding group of yarns.