Machine Vision System for Automatic Quality Control of Injection Molded Parts

Machine vision system is developed for quality control of thermoplastic injection molded parts. The goal of developed system is detection and classification of molded part faults. System is developed for injection molded parts of planar shape. Machine vision system communicates with expert sytem for fault removing thus creating closed control loop. Faults are divided in two classes: shape faults and structure faults. Structure faults are manifested as non-uniformity of model parameters which (model) is used for description of part surface. For every class of faults several algorithms of detection and classification have been tested.