Abstract:

To further study the compact spinning system with pneumatic groove and improve the yarn quality, the twist propagation of compact spinning system with pneumatic groove and the construction features of the compact spinning system are analyzed. The change of spinning tension in infinitesimal radian is analyzed in the twist propagation, and the equations of spinning tension are also given. The moment of resistance to twist and the moment of torsion in process of twist propagation are analyzed. Results from this research confirmed that the spinning tension and the negative pressure in air suction pipe as well as related structure parameters of the pneumatic groove roller affect the twist propagation. For a designed compact spinning system, the negative pressure in air suction pipe and the spinning tension are adjusted for meeting the change of the compact yarn properties.