圆形压电振子驱动式直线振动给料器

Line Vibratory Feeder Drived by Circular Piezoelectric Vibrator

摘要:

为了满足自动化生产线中对轻、薄、小产品平稳输送的要求，提出一种采用圆形压电双晶片振子作为驱动源的新型直线振动给料器，设计了振动给料器的结构模型，分析了振动给料器的工作原理，建立了振动给料器力学模型。制作了振动给料器样机，并对样机进行试验测试，得到了电压、振幅、频率之间的关系曲线，结果表明研制的振动给料器与电磁式相比具有节省电能、工作噪声小、输送稳定性好的优点，与矩形压电双晶片驱动式相比具有输送速度快的优势。

Abstract:

To meet the requirement that the light, thin and small product was conveyed steadily in modern automation product line，a new type line vibratory feeder driven by circular piezoelectric vibrator was proposed. The structure model of the vibratory feeder was designed. The working principle of the vibratory feeder was analyzed. The dynamic model of the vibratory feeder was established. Furthermore, a prototype of the vibratory feeder was developed and tested. The relations among voltage, amplitude and frequency were explored based on the test. The experimental results show that the new type vibratory feeder is characterized by less electrical energy consumption, lower work noise and more stable feeding compared with electromagnetic vibratory feeder，and it has faster feeding rate compared with the rectangular bimorph piezoelectric vibratory feeder.