Paper strip semi-shearing and bending device along central line

The invention relates to a paper strip semi-shearing and bending device along a central line. The device comprises a rack, power transmission mechanisms, a pre-impressing charging mechanism, a semi-shearing mechanism and a bending unit. The power transmission mechanisms, the pre-impressing charging mechanism, the semi-shearing mechanism and the bending unit are arranged on the rack. The pre-impressing charging mechanism, the semi-shearing mechanism and the bending unit are arranged in sequence and are in transmission through the power transmission mechanism simultaneously. Working power is transmitted to the pre-impressing charging mechanism, the semi-shearing mechanism and the bending unit through the power transmission mechanisms, and the pre-impressing charging mechanism, the semi-shearing mechanism and the bending unit do reversed circumferential counter-rolling motion, so that paper strips are fed for pre-impressing, semi-shearing and bending. The device is simple and compact in structure, manual operation is not needed, time and effort are saved, the machining efficiency is high, and the quality is good.