METHOD OF FORMING REELS AND RELATIVE ROVING FRAME

Abstract

The object of the present invention is a method of forming reels on a roving frame (1) for processing a fiber web and forming a roving wound on reels. The roving frame is provided with a drawing device (10) of the fiber web for forming the roving and a flap-spindle unit for winding said roving into reels. The method provides applying, to the fibers exiting the drawing device (10) and entering the flap-spindle unit an initial torsion (Ti) at the start of reel forming and a final torsion (Tf) at the end of reel forming. The method is characterized in that it passes from the initial torsion (Ti) to the final torsion (Tf) while providing at least one step of increasing the torsion. Advantageously such method makes it possible to reduce thread breakages during the step of winding the reel without compromising the roving frame production velocity.

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