Formation of Packages With Periodic Change of Forces of Pressure of the Drum to Winding Shaft

Abstract

<jats:p>For the formation of high-quality packaging of cross winding on machines with a constant speed, release into the composition of the winding mechanism introduce a dispersion device of the bundle winding, providing a change in the speed of the yarn guide according to the law with a long cycle of work. When laying the thread with a slotted drum, as on a spinning self-rolling machine PSK-225 SH there is no way to influence the movement of the yarn guide. In this case, effective dispersion can be achieved by periodically changing the clamping force of the bobbin to the winding shaft. When the effort of pressing the bobbin to the winding shaft changes, the contact radius of the bobbin changes, and hence its rotation frequency, which in turn leads to a change in the angle of elevation of the coil. A mathematical model is obtained that describes the change in the angle of the coil on the package from the effort of pressing the bobbin to the winding shaft. It is shown that such a device can effectively eliminate defects in the structure of the winding in the form of bundles and ribbons.</jats:p>