| 摘要 |
<p>Components of stitchable material are color monitored, i.e., compared to ensure that they are the same color, and gauged or aligned prior to stitching the components together. The components, i.e., sections of shoe quarters are fed automatically from separate stacks thereof, photoelectrically color monitored while they are still separate, gauged and finally fed to a tandem sewing machine arrangement. If the components differ in color, or if only one component is fed from one stack, the components are automatically rejected.</p> |
