The influence of the yarn guide hock location and the drive disc structure of fa506 and fa506s ring spinning frames on the ends breakage is discussed in the article with countermeasures to lower the yarn guide hock position and revise the drive disc to improve the formed yarn quality put forward 摘要探讨了fa506和fa506s型环锭精纺机上导纱钩位置和桃盘结构对纺纱断头率的影响，提出了改进措施，认为降低导纱钩位置和将桃盘反装能改善断头情况，提高成纱质量。
