Análise da utilização de um sistema machine vision para controle de qualidade de embalagens longa vida

Abstract

This paper analyzes a solution to the problem of lack of packages and faulty lids in two UHT production lines. This issue was affecting the quality of the products leaving the factory and was identified by the quality control sector, which requested for the maintenance team to verify it. The option chosen was a machine vision system, which was being tested on another equipment, and was selected because of its availability. This equipment was adapted in one of the packers of the affected lines. Through tests, its effectiveness was analyzed for the necessary control conditions. Some initial problems were encountered due to human errors during equipment operation and lighting conditions. Changes in equipment fixation and better control of the lighting conditions of the workplace allowed better results to be achieved. After implementation of the improvements it was possible to solve the problems of lack of packaging and faulty lids, and the system could be used for control during the whole production process. Due to the limitations of the utilized sensor, and the need for operation in three work shifts, it wasn’t possible to control the expiration and batch impressions of the packages. Despite the high initial cost of the system, the results achieved met the expectations and needs of the industry, providing an adequate result and allowing control of the most serious problems. The initial investment is expected to be recovered in less than two years.