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1. 发明授权

US4667576A Friction yarn false twisting apparatus 失效
标题翻译：摩擦纱假捻装置
公开(公告)号：US4667576A
公开(公告)日：1987-05-26
申请号：US780193
申请日：1985-09-26
申请人： Detiev Oberstrass
发明人： Detiev Oberstrass
IPC分类号： D02G1/08 , D04H1/08 , F01B31/00
CPC分类号： D02G1/087 , D02G1/085
摘要： A yarn false twisting apparatus is disclosed which comprises a pair of rotating circular discs having cooperating friction surfaces for engaging a running yarn at a twisting zone. A pressure applying member is positioned to apply a biasing force to the rear surface of one of the discs locally at the twisting zone, and the pressure applying member comprises a receptacle slideably mounting a piston which extends from the end of the receptacle to engage the disc. The receptacle is eccentrically mounted to permit selective positioning of the biasing force with respect to the yarn path of travel. The discs are mounted on pivotal rocking arms whereby the ratio of yarn twist to yarn speed may be adjusted, and an eccentrically mounted pin provides closely controlled adjustability for the arms and thus the twist ratio. The apparatus may be readily configured to provide either S or Z twist, and the drive system may be disengaged while in either the S or Z twist configuration to terminate rotation of the discs and thereby facilitate yarn thread-up.
摘要翻译：公开了一种纱线假捻设备，其包括一对旋转的圆盘，其具有用于在加捻区域接合行进纱线的配合的摩擦表面。压力施加构件被定位成在扭转区域局部地向一个盘的后表面施加偏压力，并且压力施加构件包括可滑动地安装活塞的容器，该容器从容器的端部延伸以接合盘。容器偏心地安装以允许偏置力相对于行进纱线的选择性定位。盘安装在枢转摇臂上，由此可以调节纱线捻度与纱线速度的比率，并且偏心安装的销钉为臂提供严密控制的可调节性，从而提供扭曲比。该装置可以容易地构造成提供S或Z捻度，并且驱动系统可以在S或Z扭转构型中分离，以终止盘的旋转，从而有助于纱线上纱。

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