Feeding device of paper cutter

The utility model relates to a feeding device of a paper cutter, and belongs to the technical field of printing paper production. Comprising a horizontally-arranged bottom frame, the left side and the right side of the bottom frame are perpendicularly connected with a left side supporting frame and a right side supporting frame respectively, and the left side supporting frame and the right side supporting frame are vertically arranged. A left lifting driving device and a right lifting driving device which jointly drive the lifting table to ascend and descend are installed on the left supporting frame and the right supporting frame respectively, the lifting table comprises a platform plate, and a plurality of horizontal beams arranged at intervals are fixed to the lower surface of the platform plate. The left side lifting driving device comprises a lifting air cylinder A fixed to the inner side of the left side supporting frame. The feeding device has the advantages that the left side lifting driving device an