Device for spirally collecting mulching films in seedling stage of tobacco and operation method

The invention discloses a device for spirally collecting mulching films in the seedling stage of tobacco and an operation method. The device for spirally collecting the mulching films is additionally installed on a machine frame of a film uncovering machine through a fixing frame. When the film uncovering machine is in work, the film uncovering machine walks forward and drives a plough share in the device for spirally collecting the mulching films to plough mulching films stacked among ridges and a part of mulching films embedded in soil up and transport the mulching films to an auger delivery feed hole on the rear portion, and under action of a forward-direction screw blade and a reverse-direction screw blade on a spiral shaft, the mulching films are transported to the position of a film downloading hole and collected through a collection box. The device has the following advantages that the structure is simple, the design is ingenious, moreover, the device is not easy to twine, film downloading is simple, film uncovering can be continuously conducted, the efficiency is high, the film uncovering rate is high, at the same time, the recycling problem of a part of the mulching films embedded in the soil in furrows is solved, and the film uncovering rate of the film uncovering machine is improved.