Design and Working Parameter Optimization of Pneumatic Reciprocating Seedling-Picking Device of Automatic Transplanter

To improve the seedling-picking efficiency of vegetable transplanter and reduce damage rate seedling pot, a reciprocating device driven by full air pressure was designed. In this paper, structure working principle pneumatic are introduced. Through mechanical analysis between claw parameters such as stroke driving force clamping cylinder were determined. According to action sequence mechanism, which is horizontally dispersed longitudinally conveyed, control scheme -dropping system formulated. The simulation model for loop longitudinal created with AMESim software, carried out. Box–Behnken response surface design optimization method used determine best operating cylinder. optimized peak value shock vibration at end from −65.64 mm·s−2 35.41 mm·s−2, proving that has positive effect on success picking. bench test mechanism conducted 72-hole plug seedlings two picking frequencies 120 plants·min−1 144 plants·min−1, respectively, average leakage rate, pot different counted. experimental results show under frequencies, throwing after increased 96.4% 92.4% 97.9% 95.3%, respectively. This in line requirements high-speed confirms rationality design.