Paper pile rotating mechanism applied to paper cutter

The utility model relates to the technical field of paper pile rotating mechanisms, and discloses a paper pile rotating mechanism applied to a paper cutter, which comprises a left clamping support plate and a right clamping support plate, the left clamping support plate and the right clamping support plate are respectively composed of two single clamping support plates, and the left clamping support plate and the right clamping support plate are respectively provided with a clamping element. When a paper pile is rotated, a user firstly places the paper pile in a left clamping supporting plate and a right clamping supporting plate, a power source is started, a lifting air cylinder is operated, the lifting air cylinder drives a sliding guide block to slide on a sliding groove guide rail, then an upper pressing plate is driven to apply pressure downwards, and therefore the paper pile is clamped up and down; and on the other hand, the two single clamping supporting plates get close to each other by starting the t