Mechanical Property Analysis And Structure Optimization Of Printed Electronics Ink-Jet Printer

"Printed electronics" is uses various printing techniques to form the electronic component and circuits of electronic products. Ink jet printing as one of the printed electronics technology, using Inkjet printer to eject conductive ink onto varieties of substrates to form conductive lines. Compared to the method of traditional "subtractive" manufacturing PCB, ink jet has the advantages of high efficiency, low consumption, energy saving, environmental protection and so on. It has gradually become the focus of attention.This thesis takes IJDAS300a ink jet printer which developed by KunShan Hisense electronics company limited as the object of study, Research static-dynamics mechanical property and optimization method of its main structure. Firstly, select beam and mass element to construct suitable and precise simplified element modal by using finite element method. Then analysis the structure key points of stress, strain, displacement and angle of rotation in different conditions by using the ANSYS application software. The results show that the maximum stress of frame is only1.43Mpa, far less than the yield stress of aluminum alloy, the upper crossbeam of relative displacement change is only12p., and the maximum angle of Tx, Ty is7.23*10-6(rad) and4.64*10-5(rad). Secondly, get the structure nature frequency and model property by vibration analysis, and find the first nature frequency is122Hz which is far more than the motor working frequency. At the same time, analysis the structure transient response under moving load in low speed and normal speed, and find that the max displacement is still12μin low speed, which is same as the value under static load, but the value is about12.5μin normal speed. Finally, Proposed the structure improvement scheme based on the static and dynamic analysis of the data and contrast with the former structure. After improvement, the overall displacement has a little decrease, the first natural frequency increase to133.5Hz and the weight of framework reduce about8%.