This utility model discloses an adjustable printing paper
cutting machine, relating to the field of paper
cutting technology. It includes a frame, an unwinding roller fixedly mounted on one side of the frame, a winding
assembly mounted on the other side of the frame, a cleaning
assembly for cleaning the paper fixedly mounted on the frame, and a
cutting assembly for cutting the paper. The cutting assembly includes a fixed plate fixedly mounted on the frame, with a driven plate rotatably mounted on one side of the fixed plate. This utility model, by setting an adjustment assembly, allows rotation of a rotating
handle to drive a driven shaft to rotate, which in turn drives an extension strip to rotate. When the extension strip passes a limit block, a spring pushes the limit block to reset, and the limit block and the extension strip make lateral contact to form a self-
locking mechanism. By driving the rotating roller to rotate, the height of the paper is adjusted, thereby adjusting the distance between the paper and the air blowing
pipe, preventing paper damage or inadequate cleaning.