Design and Study of a Spindle-Shaped Fry Head-to-Tail Orientation Device

The head-to-tail orientation of spindle-shaped fry is an important part automated vaccine injection. fry’s automatic helps reduce labor and improve efficiency during the This paper designed electromagnetic vibration device for grass carp fry, measured its friction characteristics with three different materials in scales against scales, analyzed kinematic on feeder, clarified main factors affecting transport. It used trough’s inclination angle, amplitude, material as test factors, whereas success rate were evaluation index. Orthogonal combination tests carried out 90–150 mm research object to obtain reasonable parameter combinations. results showed that best effect was achieved when surface trough a silicone film many bumps, plate spring β = 15°, plane θy −4°, amplitude A 0.7 mm. In this combination, directional tested verified. targeted ε 95.5%, direction η 0.87 tail/s. could meet requirements head tails mechanized injection fry.