Anti-deviation paper cutting machine for book processing

The utility model provides an anti-excursion paper cutter for book processing, which comprises a concave cover plate, a rotating cap, a screw rod, a telescopic rod, an L-shaped fixing plate, a fixing block and a positioning pressing plate, the upper end face of a waste paper collecting box is connected with the concave cover plate, the L-shaped fixing plate is fixedly arranged on the inner wall of the concave cover plate, the fixing block is welded on one side of the L-shaped fixing plate, and the positioning pressing plate is connected with the screw rod. A telescopic rod is welded to the left end face of the fixing block, a lead screw is installed in the telescopic rod, a rotating cap is welded to the upper end face of the lead screw, and a positioning pressing plate is welded to the lower end face of the lead screw, the problem that an original paper cutting machine for book processing is poor in anti-deviation effect is solved, and the paper cutting machine for book processing is reasonable in structure,