Seedling taking and feeding simple pendulum machine and using method

The invention provides a seedling taking and feeding simple pendulum machine and a using method. The seedling taking and feeding simple pendulum machine comprises integral racks, a rotating shaft, a fixing piece, a simple pendulum rack, a rotating shaft and air cylinder assemblies. The rotating shaft is mounted at the tops of the integral racks through a bearing; the simple pendulum rack is fixedon the rotating shaft through a key; a common seedling tray is arranged on any side of the simple pendulum rack, rotating pieces are installed at the tail ends of air cylinders of the two air cylinderassemblies, the two rotating pieces are installed in the middles of the two integral racks through stepped shafts respectively, one ends of piston rods of the two air cylinder assemblies are fixed tofixing pieces through round nuts respectively, and the fixing pieces are fixed to the middles of rack bodies of the simple pendulum rack. In the static state, the simple pendulum rack is static in the middle of the whole rack,