Noise-reducing access cover and yarn guide for false-twist air jets

摘要

In the case of an arrangement for pneumatic false-twist spinning having air nozzles arranged behind a pair of drafting units, it is provided that the air nozzles lead into a space which is designed as a V- shaped groove which, together with a covering, is completed to form a yarn guiding duct which leads from the mouth of the air nozzles to a yarn outlet opening. The yarn guiding duct is provided with a cross-sectional enlargement in the area adjacent the air nozzle outlets to provide for uniform flow in the duct.