电子提花机的压电陶瓷传动原理与测试

利用压电陶瓷片的压电效应设计了一种新的电子提花机选针装置,并对该装置的提针原理作了介绍。压电陶瓷片对冲击电流的抗干扰性很强,并且发热小,在电流瞬变的过渡过程中不存在有害振动,更不受电磁场干扰,特别是在高速运转织机中动作稳定,差错率低,因而有利于进一步提高提花织机的速度和减小功率消耗。利用高速影像仪拍摄竖针的运动过程,选取其中1个运动周期的图片进行分析,发现竖针动作准确,试验结果表明该选针装置在试验台中运行状态良好。

Drive principle and test of piezoelectric ceramics device for electronic jacquard loom

This paper designed a novel needle selecting device for the electronic jacquard loom utilizing the piezoelectric effect of the ceramics bimorph and elucidated its working principle. The ceramics bimorph is characterized by high anti-interference to the electric current, low heat generation, no harmful vibration in the transition process when the electric current has a sudden change, no interference phenomenon of electromagnetism, remaining stable and low error rate at high speed operating of the loom. So, its use facilitates to further raise the jacquard speed and reduce power consumption. The photograph of high speed image system shows the moving process of the main hooks, and analysis of one cycle of the movement on the picture indicates that their movements are precision. The experiment results demonstrate that this needle selecting device for the electronic jacquard loom runs very well.