Abstract: A qualification rate increasing method for finished products based on trademark parameter detection and control is disclosed. Trademark parameters are detected and controlled at the front end of production. Specifically, according to the folding, gluing, and transportation stages of trademarks in a packaging machine, quality of a trademark gluing position is detected and controlled, trademark indentation stiffness is detected and controlled, and a trademark surface friction coefficient is detected and controlled, to determine the suitability of placing the trademarks on the machine to determine whether the trademarks meet production standards. Only a batch of trademarks of samples whose three detection results are all determined to be qualified can enter the production process, and trademark raw materials that do not meet the production standards are eliminated. Raw materials that may produce defect products are eliminated from the source.

Abstract: A defect rate reduction method for finished products is disclosed. First, size parameters of various types of trademarks, indentations, and printed patterns are entered into a database to generate basic images, a corresponding standard trademark image is collected in real time for each basic image, and edge finding parameter optimization is manually performed, to find edge finding parameters that can be used to accurately extract the trademark edge, the indentation edge, and printed pattern edge on the standard trademark image, to complete the database modeling; sampling detection is performed, edge information is extracted based on a database model, a corresponding distance is calculated based on each extracted edge data information, and the information is compared with internal control to determine surface parameter quality of the sample trademark respectively, it is determined whether production requirements are met based on a determination result, and the unqualified batch of trademarks is eliminated.