Method for detecting abnormality of film of enameled wire, manufacturing method of enamel wire, and manufacturing apparatus of enamel wire.

摘要

To provide an enamel wire coating abnormality detection method, an enamel wire manufacturing method and an enamel wire manufacturing device with which it is possible to detect coating abnormality even when thickness abnormality occurring to an enamel coating is lower than a prescribed height.SOLUTION: Provided is an enamel wire coating abnormality detection method for detecting the abnormality of enamel coating. The enamel wire coating abnormality detection method includes the steps of: acquiring the surface height of enamel coating of an enamel wire; acquiring a surface image of the enamel coating; detecting the surface shape of coating of the enamel wire from the acquired surface image of the enamel wire coating; outputting an abnormal height signal when the acquired surface height of the enamel coating exceeds a prescribed height; outputting an abnormal shape signal when the area calculated from the detected surface shape of the enamel coating exceeds a prescribed area; and determining that there is abnormality of the enamel coating when the abnormal height signal or the abnormal shape signal is outputted.SELECTED DRAWING: Figure 1