APPARATUS AND METHOD FOR BUTTON INDEXING IN BUTTON ATTACHING MACHINE, AND METHOD OF ADJUSTING THE APPARATUS

摘要

A button-indexing apparatus in an attaching machine for attaching on cloth etc. of clothes a button that requires a predetermined orientation. The apparatus comprises a lower die provided on a button attaching position of the attaching machine, drive means for rotating the lower die about its vertical axis, a laser light source for irradiating one point on a predetermined circular locus about the axis, the locus being formed by a button to be supported by the lower die, a light sensor for detecting reflected light or scattered light from the button, and means that, when the maximum intensity or the minimum intensity of the light is detected by the sensor, stops the lower die at a rotational position where a proper orientation of the button is available.