瓷砖装饰用压电喷墨打印头关键技术研究

A Research Review on the Key Technologies of Piezoelectric Inkjet Printhead for Tile Decoration

压电喷墨技术是一种广泛应用于工业数字印刷领域的喷墨打印技术。根据压电陶瓷变形模式不同,压电喷墨可分为挤压式、弯曲式、推动式和剪切式4种驱动原理。该文介绍了4种压电喷墨原理及相关研究方法。有限元分析和流体动力学计算可模拟墨滴生成与飞行的过程,便于研究喷头电学参数和几何尺寸对喷墨性能的影响。并讨论了喷墨打印头的压电元件、喷嘴板等材料优化,以及压电喷墨头研究进展及未来展望。

The piezoelectric inkjet technology is a kind of inkjet printing technology that is widely applied in industrial digital printing field.According to different deformation modes of piezoelectric ceramics,there are four types of operating principle of piezoelectric inkjet：squeeze mode,bend mode,push mode,and shear mode.The principles of those four types of piezoelectric inkjet and correlative research methods were introduced in this paper.FEM and CFD can be used to simulate the generation and flight of droplets,and make it easier to study the influences of electrical parameters and geometric dimensions on the inkjet performance.The optimization of piezo elements and nozzle plate materials was discussed,and domestic piezoelectric inkjet printhead research progress and future prospects were reviewed.