Detection mechanism and scribing machine

The utility model belongs to the field of scribing equipment, and particularly relates to a detection mechanism and a scribing machine. The detection mechanism is used for detecting a to-be-cut piece, the detection mechanism comprises a mounting base, an image acquisition assembly and an air blowing assembly, the image acquisition assembly is mounted on the mounting base, the to-be-cut piece is right opposite to the image acquisition assembly, the image acquisition assembly is used for performing image acquisition on the to-be-cut piece, and the air blowing assembly is used for blowing air to the to-be-cut piece. The air blowing assembly is arranged on the mounting seat, the air blowing assembly comprises an air blowing rod and a fixing seat, the fixing seat is rotationally connected with the mounting seat, the air blowing rod is rotationally connected with the fixing seat, an air outlet hole is formed in the air blowing rod, and the air outlet hole faces the part to be cut. According to the air blowing devic