一种垂直驱动型超声波送料器的研究

基于压电驱动的原理，研制了一种用于新型垂直驱动型超声波送料器，对结构进行了设计计算；同时设计了送料器的驱动装置-超声波换能器,对超声波换能器的振动模式和性能参数进行了分析，并建立了相关的方程。对本送料器的基本性能及行了测试。实验表明, 该送料器能够实现对微小物体的输送。

Study of a Vertical Drive ultrasonic Feeder

In order to overcome a electromagnetic interference of the electric and magnetic feeder and to reduce the acoustical noise of low frequency piezoelectricity feeder,a new ultrasonic vibration feeder was presented.An ultrasonic transducer based on piezoelectrical ceramic was used to drive the feeder.The vibration model and parameters of the ultrasonic transducer were studied and calculated and the relational curve between oscillation amplitude and frequency was obtained.In order to create effective vibration,a vertical-drive was adopted to design its construction.The structure parameters were calculated,and correlative equation was built.Experimental results show that the discharge velocity of thin slice metal of 3 mm diameter reaches 36 cm/min,when frequency is 17.5 kHz and thickness of spring reed is 7 mm.In addition,proposed ultrasonic feeder can carry or feed small solid object without electromagnetic interference.