Reverse feeding locating device of plate shearing machine

The invention provides a reverse feeding locating device of a plate shearing machine. The device is characterized by consisting of a guide rail (1) and a positioning slide block (2), wherein the guide rail (1) is fixedly arranged on the reverse of the plate shearing machine (6), namely one side of a discharge port; the positioning slide block (2) is arranged in the guide rail (1); the shape of the positioning slide block (2) is matched with that of a guide slot (3) of the guide rail (1); and the positioning slide block (2) is fixed in the guide slot (3) of the guide rail (1) through a tightening bolt (4). The reverse feeding locating device provided by the invention is simple in structure, convenient to manufacture and adjustable in length, and can be used for omitting a scribing process, greatly improving the production efficiency and simultaneously ensuring the blanking consistency.