A study on the structural design and driving technology of decoupled vibratory feeding system

This paper describes the development of decoupled vibratory feeding system (DVFS), and concentrates on its structural design and driving technology. In DVFS, vibration angle, frequency and waveform of the driving signals can be easily adjusted in software way, as well as the phase angle between vertical vibration and horizontal vibration. So DVFS has a great superiority. Up to now, two DVFS prototypes have been successfully developed, and the structure of decoupled vibratory feeder (DVF) becomes more and more compact. But its application is limited, because of complex structure, occupying much space and inconvenient installation and commissioning. So the structure should be optimized. The electromagnet and the drive circuit are the core of the drive system which should be simultaneously considered. Its external dimensions and drive performance should be optimized. Presently, some researches on the electromagnet driving technology have been made. One method is to receive analog signal from D/A output, then drive electromagnet through power amplifier. The other method actually is to use a switching circuit controlled by PWM technology. To test electromagnet performance, a test system has been designed.