DEVICE FOR THREAD RELEASE AT SPINNING MACHINE Russian patent published in 2013 - IPC D01H5/22 

FIELD: textiles, paper.

SUBSTANCE: device for thread release at the spinning machine, characterised by the presence on the output of the drafting device of the adjusting device of the flow arc size with the outlet cylinder thread, made in the form of contacting bolster and roller in the form of an ellipse which is located on the secondary shaft, extending along the spinning machine and receiving the rotational motion of the front cylinder of the drafting device mounted with the ability of reciprocating movement in a plane perpendicular to the axes of the drafting pairs. In this case, the bolster and the roller of the control means have grooves for the passage of thread and are mounted with the ability of the flow the cylinder by the thread. To provide a low friction coefficient the surface of the grooves of the bolster and cylinder are made of thermoplastic polymers such as PTFE.

EFFECT: invention enables to increase strength and to reduce breakage of obtained yarn by reducing the flow of the arc of the front cylinder by the thread, which contributes to the extension of twist to the clamp area of the thread formed by the front drafting pair.

3 cl, 4 dwg