压电泵在喷墨打印机连供系统上应用研究

Research on the Piezoelectric Pump Application in Continuous Ink Supply System of the Inkjet Printer

为解决带有连供系统的喷墨打印机内置墨盒中的墨水向外置墨盒回流及打印机长期不用墨水干燥阻塞管路问题,将微型有阀压电泵安装在连供系统的管路中,并对压电泵进行了性能测试.测试结果显示:在连供装置的管路中压电泵最大输出流量可达8 m L/min-1,最大输出压力可达11 k Pa;压电泵出口反向截止压力为65 cm H_2O,最小自吸高度可达70 cm H_2O.以上测试数据结果表明,所设计的压电泵结构尺寸小,性能好,安装后可完全解决连供系统存在的问题.

In order to solve the problems of backflow ink in inner cartridges to external cartridges and ink drying blocked pipeline if never used in the inkjet printer with continuous ink supply system,the micro piezoelectric pump with valve installed in the pipeline for the system,and performance of the piezoelectric pump were tested.The test results showed that:maximum output flow rate of the piezoelectric pump up to 8 mL/min-1 in the continuous ink pipeline for device,the maximum output pressure can reach 1.1 kPa;piezoelectric pump reverse cut-off pressure is 65 cmH 2O,the minimum self-priming height can reach 70 cmH 2O.The above test results show that the piezoelectric pump has structure design of small size,good performance,the problems of continuous ink supply system can be completely solved after installation.