Spooling device with pre-winding means

Claim 1

In a spooling device for producing a thread package by winding a thread onto a rotating carrier, the improvement of means for pre-winding the thread onto a terminal zone of the carrier axially adjacent the normally wound thread package which comprises: an elongated cylindrical guide element rotatably mounted and positioned along said carrier terminal zone with the axis of the guide element parallel to the carrier axis so that the thread is received in running contact partially around the circumferential surface of said guide element; drive means to rotate said cylindrical guide element; and at least one pair of coplanar, circumferentially spaced flanges projecting circumferentially and radially from diametrically opposite sides of said cylindrical guide element, each flange having a steeply flanked side face forming respective thread restraining shoulders, and each flange having a leading edge and a trailing edge which lie in respective planes which are substantially tangential with the cylindrical surface of said guide element, and thread guide means preceding and following said guide element for guiding the thread arcuately over and in contact with an arcuate portion of said cylindrical surface, upon which arcuate portion the thread runs tangentially onto and off said cylindrical surface, and the arc between the tangential intersections of respective planes of said leading and trailing edges of respective flanges with said cylindrical surface being greater than the arc of said arcuate portion contacted by said running thread.