Patent ID: 6082658
Filing Date: 2000-07-04
Classification: D01H

Abstract:
A method of winding a roving bobbin comprising the steps of:(a) winding a roving coming from a driven drafting frame to form a bobbin body on a roving bobbin tube with a flyer frame having a driven flyer on a driven flyer rail and on driven bobbin rail with driven bobbins, said bobbin body having a central cylindrical portion, an upper winding cone at an upper end of the central cylindrical portion and a lower winding cone at a lower end of said central cylindrical portion;(b) terminating the winding of said bobbin body at a first location on said central cylindrical portion;(c) winding at least a partial turn of the roving in a descending slubbing path along said central cylindrical portion from said first location to a second location at a junction between said lower winding cone and said central cylindrical portion;(d) then winding said slubbing in a descending spiral along said lower winding cone in at least a partial turn to a third location at a bottom of said lower winding cone;(e) then winding said slubbing for at least a partial turn onto said tube below said lower winding cone to a fourth location at the bottom of said lower winding cone;(f) then winding said slubbing in a rising spiral for at least a partial turn along said lower winding cone to a fifth location at said junction between said lower winding cone and said central cylindrical portion and crossing over said descending spiral on said lower winding cone;(g) then winding said slubbing onto a lower portion of said cylindrical body in a short spiral stretch to a sixth location; and(h) then moving said bobbin and the bobbin rail to draw said slubbing upwardly along said central cylindrical portion, thereby pulling out said short spiral stretch and separating said slubbing in a rising stretch thereof along said central cylindrical body below said upper winding cone.