The invention relates to a tray conveying device of a seeder.The tray conveying device is installed on the machine platform of the seeder.It includes: servo motor,Screw,2 auxiliary rods pallets；The servo motor is installed on the side of the machine.Provide power source of screw；The two ends of the screw are respectively pivoted on the inner wall of the machine by a shaft seat.One end of the screw is connected with the servo motor.The screw rod is provided with a screw sleeve；The two auxiliary rods are respectively arranged on two sides of the screw.Two ends of the auxiliary rod are respectively fixed on the inner wall of the machine platform with one rod seat.And each auxiliary rod is provided with a sliding sleeve；The tray is screwed on the lap part of the screw sleeve and the lap part of the sliding sleeve；By controlling the servo motor to drive the screw to rotate,Make the tray move back and forth.本創作係有關一種播種機之托盤輸送裝置，該托盤輸送裝置係裝設於播種機之機台上，其包含有：伺服馬達、螺桿、二輔助桿及托盤；該伺服馬達係裝設於機台旁側上，提供螺桿之動力源；該螺桿之兩端各以一軸座樞固於機台之內側壁上，而螺桿之一端係與伺服馬達相連接，而螺桿上設有螺套；該二輔助桿係分別設於螺桿之二側，二輔助桿之兩端係分別各以一桿座樞固於機台之內側壁上，而二輔助桿上各設有滑套；該係以螺絲將托盤螺固於螺套之搭接部與滑套之搭接部上；藉由控制伺服馬達驅使螺桿轉動，使托盤隨之作左右往復移動者。
