Method and apparatus for start-spinning a thread on an open-end spinning machine
AssigneesFritz Stahlecker, Hans Stahlecker
InventorFritz Stahlecker
Life of this patent
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Abstract
To start-spin a thread with open-end spinning, the end of the thread is inserted back into the spinning rotor against the normal direction of draw and placed on a ring of separated fibres. In order to simplify placing the thread on the ring and to improve the strength of the start-spinning point in the thread, before being placed on the ring of fibres, the returned end is freed of the twist in the thread produced during spinning, causing this end to be in a condition which corresponds generally to the condition of the ring of separated fibres.
Claims4
A method for start-spinning a thread on an open-end spinning machine, in which a ring of separated fibres is deposited in a spinning rotor, with the end of said thread which is reinserted into said spinning rotor against the direction in which it is drawn, being connected with said ring of fibres, whereby the spinning twist produced in said thread through spinning is eliminated at said end of the thread by untwisting said thread in the opposite direction so that the end of said thread is reduced to fibre tuft prior to or during reinsertion into said spinning rotor.
An apparatus for start-spinning a thread on an open-end spinning machine, containing means for opening and inserting threads into a spinning rotor and containing means for reinserting the end of said thread into said spinning rotor against the direction of draw of said thread, said means containing at least two means for clamping the end of said thread, of which at least the outer means can be caused to rotate about the longitudinal axis of said thread to eliminate the spinning twist produced in said thread so that the end of said thread is reduced to fibre tuft.
Dependencies are inferred from the claim text.