Control arrangement for yarn piecing apparatus

Details Control arrangement for yarn piecing apparatus Control arrangement for yarn piecing apparatus

D - Textiles, Paper

02

J

349/29, 28/46

D02J 1/22 (2006.01) D01H 13/14 (2006.01)

Patent

CA 1037697

Abstract of the Disclosure A traveling unit which has instrumentalities for reinstituting attenuated strand formation at drafting systems of a textile yarn forming machine and which traverses a textile yarn forming machine having a plurality of drafting systems is controlled by an arrangement which facilitates reduction in the number of ineffective attempts at reinstitution of strand formation. The control arrangement includes an active sonic detector for electrically signaling traversal of a drafting system location at which a stop number is in a retracted position and an attenuated strand detector responsive to electro- static charges normally present at drafting system locations during attenuated strand formation. The control arrangement distinguishes among three possible circumstances and initiates operation of the instrumentalities for reinstituting strand formation only as required.

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