| 摘要 |
PROBLEM TO BE SOLVED: To securely detect a thread wound around a contact roller. SOLUTION: This spinning thread winding device winds up a spinning thread Y in contact with a contact roller 4 on a bobbin holder. A light projector 6a and a light receiver 6b which form a pair of an optical detection device 6 are provided on the outside on the right and left of the contact roller 4, and light for detecting thread termination L passes the vicinity of an outer peripheral face 4a of the contact roller 4. The light projector and the light receiver 6b are provided on an open space side A. The light projector and the light receiver 6b are provided in a section where accompanying air stream generated due to the rotation of the contact roller 4 passes. A lap filler 10 provided with a detection member 11 which brings a tip 11a close is provided on an outer peripheral face 4a of the contact roller.
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