The effect of the interaction of part geometry and vibratory feeding parameters on the feed rate of parts in a vibratory bowl feede

Vibratory bowl feeders (VBFs) are the most versatile devices used in the feeding of small engineered parts during the part assembly process. VBF technology is mature; industry has been using VBFs to great effect for over 30 years. Research has not been lacking; however, the VBF knowledge base lacks a fundamental understanding of the interactions between the physical characteristics of a part and the various design parameters of a VBF in relation to optimal performance; where optimum performance is defined as part motion with the least amount of instability and a maximized effective travel distance. The objective of this research was to explore these interactions and develop a fundamental understanding of the principals involved. An experimental apparatus that allowed for the rapid modification of various VBF parameters was designed, built and used in three empirical studies. The results of these studies were verified in a traditional commercial VBF. Classical impact mechanics and high speed digital recordings of part micro-motions were used to develop a narrative of the pertinent factors involved and their relationship to the observed phenomenon.