Start-spinning apparatus which travels along an open-end spinning machine
AssigneesFritz Stahlecker, Hans Stahlecker
InventorFritz Stahlecker
Life of this patent
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Abstract
A start-spinning apparatus which travels along an open-end spinning machine has means which lift a winding cone of an open-end spinning unit away from its drive means, which pick up an end of the thread from the winding cone and which return said end to a spinning rotor of the open-end spinning unit again for start spinning, and which finally withdraw the thread therefrom again. In order to produce precise operating conditions, the return of the end of the thread to the spinning rotor and drawing off of the thread again are controlled by a separate pair of trapping rollers after the end of the thread, which has been trimmed to a certain length, has been transferred to a yarn removal channel leading to the spinning rotor by a transfer trapper.
Claims26
A start-spinning apparatus which travels along an open-end spinning machine having at least one yarn removal channel connected with a respective at least one spinning rotor, comprising means for lifting away a winding cone of an open-end spinning unit, trimming means, a pair of trapping rollers, a movably arranged suction nozzle for picking up an end of thread from said winding cone and placing said end of said thread into the effective area of said trimming means and said pair of trapping rollers, and movably arranged transfer trapping means for trapping said end of said thread in the area of said trapping means and transferring said end of said thread to the yarn removal channel, whereby said pair of trapping rollers controls the return of said end of said thread into said spinning rotor and withdrawal therefrom again.
Dependencies are inferred from the claim text.