Investigating the Dynamic Behaviour of a Linear Vibratory Feeder

A linear vibratory feeder is an instrument that uses vibration to "feed" material to a process or machine. It consists of a vibrating frame, an electromagnetic coil, a spring, and a tray or trough for conveying materials. The vibration causes the material to move along the tray or trough, ultimately moving the material to its desired destination. The motion analysis of different linear vibratory feeders was here performed and compared. Numerical modeling and experimental verification were combined in the way to investigate the dynamic response of vibratory feeders and their effect on feed particle accelerations on conveying. A close correspondence between the measured and predicted resonance frequencies was found. This information was conveniently used to improve machine designs.