ダイヤフラムポンプ型液橋力グリッパによる微小液滴の形成とピック＆プレース実験

抄録

Capillary force is attracting two objects while a liquid bridge is generated between them. By using the capillary force, it is possible to pick and place small objects having various shapes. In previous study, we have developed a mechanism for discharging a droplet. The mechanism is composed of a piston for pushing a liquid and a valve for preventing a back flow. However, it is difficult to discharge the droplet with a diameter of less than 1mm because the seal of the piston is not sufficient. In this study, we have improved the mechanism by replacing the piston pump to a diaphragm pump. In experiments, we have succeeded to discharge a droplet with a diameter of 0.5mm, half diameter of the previous mechanism. In pick-and-place experiments, we have evaluated the positioning errors of 1mm³ acrylic cubes and 0603 chip capacitors.