Today, industrial robots are increasingly being used in factory assembly, crawling the workpiece, and set up to replace the manual to complete some high-intensity, difficult and complex work. The actual production process is often required to crawl some of the disorder of the workpiece, the stacking.

In the production of razor grip process may occur in a part of the color and the required color does not match, this will cause a bad product. The traditional manual inspection method can not guarantee the production efficiency and high yield rate under the premise of high efficiency and high yield.