Blocking device of the unwinding of threads from the feeding bobbins of a double-torque twister

摘要

Blocking device of the unwinding of the threads from the feeding bobbins of a twisting spindle with superimposed bobbins inserted on their hollow pin, in which the threads are blocked with mechanical interceptors brought into their unwinding range at the entrance of the respective hollow pins and activated by means of sensors of the twisted thread situated downstream of the thread-guide curl.