Automatic roving bobbin doffer - unwinds bobbin temporarily lifting to prevent roving damage

摘要

To give an automatic doffing of roving bobbins at a ring spinner, the empty bobbin is rotated in the unwinding direction of the roving at least momentarily while it is lifted. This gives a roving length at least equal to the height of the empty bobbin from the creel to the doffing trolley. ADVANTAGE - Prevents damage to the roving during doffing which could lead to stoppages.