Mistake proofing device and feeding machine

The utility model relates to the technical field of production equipment, and discloses a mistake proofing device and a feeder, the mistake proofing device comprises a base, a driving part, a stopping part and a recognition control assembly, and the base is used for being connected with a machine body; the driving piece is connected to the base; the stopping piece is connected to an output shaft of the driving piece, and the driving piece can drive the stopping piece to move to a first position where the cover plate is stopped from moving and a second position where the cover plate is allowed to move; and the identification control assembly is electrically connected with the driving piece, and the identification control assembly is configured to identify the to-be-conveyed material and control the driving piece according to an identification result so as to change the position of the stopping piece. According to the technical scheme, feeding errors can be effectively prevented, and the structural adaptability