The influence of structural parameters of electromagnetic fluid jetting dispenser

Wang, Jun-Quan; Deng, Guiling

doi:10.1109/icept.2008.4607105

Cited by 2 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ham [11] proposed a piezoelectric injector using a diamond hinge to amplify the displacement of the piezoelectric stack. Analyzing the power performance of enlarged structure obtains a maximum amplification displacement of 0.330 mm; Guiling et al [12][13][14] analyze the flow of glue through the nozzle aperture when jetting high-viscosity glue. The effect of temperature, ball needle stroke, and plastic pressure on injection performance was analyzed, and showed that the larger the liquid viscosity, and the higher the temperature needed for heating, the larger the ball needle stroke.…”

Section: Introductionmentioning

confidence: 99%

Nozzle and needle during high viscosity adhesive jetting based on piezoelectric jet dispensing

Liang

Jiang

et al. 2015

Smart Mater. Struct.

View full text Add to dashboard Cite

A piezoelectric impinging jet valve is used as a study object to investigate the effect of the ball needle in the existing impinging jet and nozzle structure of the valve on the performance of the jet. First, FLUENT software is used under different ball needle and nozzle structural parameters to simulate the pressure distribution that the ball needle and nozzle in the pressure cavity form when the ball needle hits the nozzle, by arranging the structure model of the ball needle and impact valve nozzle. The piezoelectric impact injection valve and the experiment test system are then designed. Test results show that the ball needle and nozzle structural parameters are closely related to the injection performance of the impact valve. Under certain conditions, a greater needle radius corresponds to a smaller nozzle aperture and taper. Moreover, high-viscosity liquid jetting is easily achieved. By using a ball needle with a radius of 1.5 mm, a taper angle of 60°, and a nozzle diameter of 0.1 mm, we can realize the industrial viscosity of 58 000 cps in glue spray, and the injection plastic fluid volume is 0.62 μl.

show abstract