Flat plate glass feeding device

The invention discloses a flat plate glass feeding device. A sliding block is slidably connected with a guiding rail through a groove, a screw rod is rotatably mounted in a rectangular groove througha bearing, the screw rod penetrates through the sliding block and is in threaded connection with the sliding block, an output shaft of a motor is fixedly connected with the right end of the screw rod,the sliding block is connected with a mounting plate through connecting rods, an air cylinder is vertically mounted in the center of the upper end face of the mounting plate, the middle of a rectangular frame is fixedly connected with a fixing plate, a piston rod of the air cylinder downwards penetrates through the mounting plate and then the end of the piston rod is fixedly connected with the middle of the fixing plate, the rectangular frame is divided into a left halved area and a right halved area through the fixing plate, and a sliding plate is slidably arranged in each halved area; a two-way screw rod is rotatabl