An automatic picking and casting device for transplanting machine and its method

An automatic picking and launching seedling device for transplanting machine, characterized in that, the device includes a seedling picking mechanism, a seedling guiding devices, a box shifting mechanism, and a seedling separating mechanism;

• the seedling picking mechanism is installed on the box shifting mechanism, two sets of seedling separating mechanisms are symmetrically arranged on both sides of the box shifting mechanism, and the seedling guiding devices is arranged on the top of the seedling separating mechanism;
• the seedling picking mechanism includes a vertical moving linear guide, a rectangular frame, a spring, a vertical moving cylinder, a picking seedling claw, a bottom plate, a horizontal moving linear guide and a horizontal moving cylinder;
• the rectangular frame is fixed on a bracket, the left and right sides of the rectangular frame are mounted with the vertical moving linear guide which is matched with several first sliders mounted on the bottom plate;
• the vertical moving cylinder is mounted on the upper surface of the rectangular frame, and the piston rod of the vertical moving cylinder is connected to the bottom plate;
• the bottom plate is provided with at least two parallel horizontal moving linear guides on the front surface, and several second sliders are mounted thereon;
• two horizontal moving cylinders are mounted on the back surface of the bottom plate, the bottom plate is provided with several parallel-arranged grooves, through which the piston rods of horizontal moving cylinders are connected to the moving driving board for picking seedling claws on the front surface of the bottom plate;
• the two moving driving boards for picking seedling claws are alternately mounted on the second slide on both ends of the horizontal moving linear guide;
• several moving connecting plates for picking seedling claws are mounted on the other second sliders through the rail slider connecting blocks, and the several picking seedlings claws are respectively mounted on the moving connecting plates for the picking seedling claws;
• the two moving driving boards for picking seedling claws are respectively connected with the outermost two rail slider connecting blocks;
• the springs are arranged between the adjacent two picking seedlings claws, and are mounted on the screws, and the both ends of the screws are arranged with a limit nut;
• when the horizontal moving cylinder is fully contracted, the innermost picking seedling claw is concentric with the innermost hole of the disc, the outermost picking seedling claw is concentric with the outermost hole of the disc, and all the picking seedling claws are concentric with the holes in the same row on the disc;
• when the horizontal moving cylinders is fully extended, the compression amount of the spring is the minimum compression amount of the spring defined by the limit nut, the outermost picking seedling claw is concentric with the upper opening of the outermost inclined seedling guiding barrels, and each picking seedling claw is concentric with each of the seedling guiding barrels;
• the seedling guiding device includes a mounting plate for seedling guiding barrel mounted on the bracket, a clasp for vertical seedling guiding barrel and a clasp for inclined seedling guiding barrel mounted on the mounting plate for seedling guiding barrel respectively, and a vertical seedling guiding barrel and an inclined seedling guiding barrel respectively coaxially mounted on the clasp for vertical seedling guiding barrel and the clasp for inclined seedling guiding barrel;
• the seedling guiding outlets of the vertical seedling guiding barrels and the inclined seedling guiding barrels are respectively concentric with the seedling separating cups which are arranged in a circular shape in the seedling separating mechanism.