Cutting device for MPP electric power pipe production

A cutting device for MPP electric power pipe production comprises a folding type supporting mechanism and a cutting mechanism. The folding type supporting mechanism comprises a base frame, the two ends of the base frame are each rotationally connected with a middle folding frame set composed of at least one middle folding frame, and the middle folding frames in each middle folding frame set are rotationally connected end to end. The middle folding frame at the tail end in each middle folding frame group is rotationally connected with an end folding frame; an annular cutting support is fixedly installed on the base frame, and the cutting mechanism is installed on the annular cutting support. The two sides of the annular cutting support are each provided with a plurality of conveying roller frames capable of being installed on the corresponding base frame, the middle folding frame set and the end folding frame in a back-and-forth sliding mode. Through the design of the folding type supporting mechanism, the pro