Lithographic printing plate supply device

The present invention provides a lithographic printing plate feeder. The load W of the pick-up roller (42) that sends the planographic printing plate (20) from the printing plate (18) is adjusted relative to the loading of the printing plate (18). When the load W becomes larger and exceeds the single feed boundary, if the feeding force from the backing paper (22) to the back surface (20B) of the lower lithographic printing plate (20) is so great that it exceeds the frictional force thereof, it can be integrally conveyed. (Repeat) Top lithographic printing plate (20) and pad paper (22A). The lithographic printing plate (20) can be taken out more quickly than in the case where the lithographic printing plate (20) or the pad (22) is sent one by one in order, and the mechanism for removing the lithographic printing plate (20) and the sucker used in the past are not required, so the structure is Small, simple and low cost. Thus, the present invention can provide a lithographic printing plate supply device that is small in size, simple, and low in cost, so that the lithographic printing plate can be quickly and accurately supplied.