TURRET YARN WINDER

PROBLEM TO BE SOLVED: To reduce the occurrence of the mounting error of a detecting means to detect movement of an oscillating member having a roller bail. SOLUTION: A pair of mandrels 1a and 1b are disposed at a turret machine 2, and bobbins supported by mandrels 1a and 1b are changed to a bobbin winding position A and a waiting position B situated on the turret machine 2 through rotation of the turret machine 2. A roller bail 10 making contact with the bobbin on the bobbin winding position A side is located on an oscillation member 9 and through the increase of winding of the bobbin, the roller bail 10 is pressed externally of a home position. A detecting means to generate a signal by detecting the separation of the oscillation member 9 when the oscillation member 9 is separated away from a stopper 12 is arranged at either a contact position with the oscillation member 9 or a contact position with the stopper 12. When a signal is generated at the detecting means, the turret machine 2 is caused to move in a stepping state.