Blocking device of the unwinding of threads from the feeding bobbins of a double-torque twister
AssigneeSavio Macchine Tessili S.p.A.
InventorsRoberto Badiali, Ruggero Nicodemo, Giovanni Ghinami
Life of this patent
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Abstract
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.
Claims14
A blocking device of the unwinding of threads (3, 4) from the feeding bobbins (1, 2) of a twisting spindle (F) with coaxially superimposed bobbins inserted on their own hollow pin (10, 11), each thread (3, 4) unwinding upwards from its bobbin and in the same direction as the other thread, directly entering the hollow pin (10, 11) without penetrating, during its run, the space surrounding the other bobbin, characterized in that the blocking device of the unwinding of the thread (4) of the lower bobbin (2) comprises a mechanical interceptor (48) integral with the upper hollow pin (10), activated with means for activating (55, 71) for its descent to enter into the unwinding range of the thread (4) preventing it from passing into the lower hollow pin (11).
Dependencies are inferred from the claim text.