Material position detection device

The utility model relates to the technical field of material detection devices, and discloses a material position detection device, which comprises a transportation frame and a PLC (Programmable LogicController), material position detection device, a detected material signal is transmitted to the PLC through the photoelectric sensor; after a rotating signal of the driven roller is transmitted tothe PLC through the rotating sensor, the specific position of the material can be known; use is very convenient, compared with a visual sensor, the price is low; the tops of most transportation framesare transverse plates, and the tops of part of the transportation frames are provided with protective baffles. Therefore, the position of the photoelectric sensor can be changed by rotating the threaded rod to separate the extrusion plate from the transportation frame; and the two supporting columns get close to each other by pressing the two connecting rods at the same time, so that the top plate and the rotating block ar