SHEN Yan-hu, SU Jiang, YANG Zhi-gang etc. Design and experiment of piezoelectric-drive vibratory feeder[J]. Editorial Office of Optics and Precision Engineering, 2014,22(7): 1828-1833
SHEN Yan-hu, SU Jiang, YANG Zhi-gang etc. Design and experiment of piezoelectric-drive vibratory feeder[J]. Editorial Office of Optics and Precision Engineering, 2014,22(7): 1828-1833 DOI: 10.3788/OPE.20142207.1828.
Design and experiment of piezoelectric-drive vibratory feeder
leaf spring actuated by a round piezoelectric bimorph was developed base on the working principle of systemic resonance.The working principles of the vibratory feeder driven by a circular piezoelectric vibrator were introduced
the expression of natural frequency was obtained by establishing the dynamic model of the vibratory feeder
and the first order mode shape was defined as the working mode shape after analysis of the vibratory modal.Then
a prototype of the vibratory feeder was developed.Finally
the relations among voltage
frequency and feeding rate were measured
and the influences of the angle of leaf spring on feeding rates
stability and noise were explored.The experimental results show that the feeding rate of the vibratory feeder is 8.5 battery caps per second when the voltage is 150 V and the frequency is 142 Hz.The vibratory feeder can convey the products when the working frequency is from 136 Hz to 148 Hz
and the best feeding rate is at the resonance frequency(142 Hz).Moreover
the feeding rate increases linearly with the driving voltage.As the mass of the conveying parts increases
the installation angle of the main vibrating spring decreases.
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references
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