公开(公告)号：US3902308A

公开(公告)日：1975-09-02

申请号：US39858973

申请日：1973-09-19

Applicant: LEESONA CORP

Inventor： BERNSTEIN BARRY EVANS ,  ERBSTEIN ROBERT STEPHEN

IPC: B65H63/00 ,  D01H9/08 ,  D01H13/14 ,  D01H13/16 ,  D01H15/00 ,  D01H15/013 ,  D01H13/00 ,  D01H9/10

CPC classification number: D01H13/145

Abstract: In an automatic spinning machine equipped with a traveling tender carriage capable of detecting the existence of an abnormal condition at a station on the machine and servicing the station to restore it to normal operation, an optical sensing system is associated with the carriage to optically sense the movement of the carriage into registration with a spinning station and provide an indication thereof by reflection from a curved specular surface situated at the station. Preferably the sensing system includes a plurality of sensing stages, the outputs of which are used to control the arrest of the carriage and its alignment with a station to be serviced according to a predetermined sequence. In a preferred embodiment, a pair of photodector cells is employed in each sensing stage and the signals generated thereby are compared electronically to detect when the cell pair is disposed symmetrically of the center line of the given station.

Abstract translation: 在配备有能够检测在机器上的站处的异常状况的存在并且维修站的运行投标台的自动纺纱机将其恢复到正常操作时，光学传感系统与滑架相关联以光学感测 滑架移动到与纺纱站对准并且通过来自位于工位的弯曲镜面的反射提供其指示。 优选地，感测系统包括多个感测级，其输出用于根据预定的顺序来控制滑架的停止以及与待维修的站的对准。 在优选实施例中，在每个感测级中采用一对光电单元，并且由此产生的信号被电子地比较以检测何时该单元对对准给定站的中心线。