| 摘要 |
PROBLEM TO BE SOLVED: To provide an appearance inspection device for a thread package capable of executing the inspection with high accuracy in a short time by surely retracting a suspended thread outside of an inspection area. SOLUTION: In this appearance inspection device where the thread package P having a bunch winding part B on a bobbin end is uprightly stood, and optical detectors 9, 10 are mounted around the same to detect defects on a surface of a cop by the optical detectors, an upward injection nozzle 13 for upwardly injecting the air along the surface of the cop is mounted at a lower part of the thread package P, and a thread end of the bunch winding part is retracted outside of the inspection area by the air injection.
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