Film mulching and breaking device for sweet potato planting

The utility model provides a film mulching and breaking device for sweet potato planting, which comprises a frame, a first mounting shaft fixedly mounted at the side end of the frame, a first shaft sleeve rotatably sleeved on the first mounting shaft, a connecting arm fixedly connected to the outer end of the first shaft sleeve, a mounting sleeve fixedly mounted at the lower end of the connecting arm, and a rotating shaft slidably mounted in the mounting sleeve. A mulching film barrel is rotationally sleeved outside the rotating shaft; a mounting seat is fixedly mounted on the frame, a diesel engine is fixedly mounted on the mounting seat, a first turntable is fixedly mounted at the tail end of an output shaft of the diesel engine, a connecting rod is connected to the tail end, a mounting plate is fixedly mounted below the frame, a rocker arm is hinged to the bottom end of the mounting plate, a film breaking chisel is fixedly mounted at the tail end of the rocker arm, and the side end of the rocker arm is con