Defect detection device for blow molding and shaping of disposable tableware

The invention discloses a defect detection device for blow molding and shaping of disposable tableware, and relates to the technical field of tableware defect detection, the defect detection device comprises a rack, the rack is provided with an upper top ring, a lower bottom ring and a pneumatic assembly arranged on the lower bottom ring of the rack, and a lifting rod is connected between the lower bottom ring and the upper top ring in a lifting manner. According to the defect detection device for blow molding and shaping of the disposable tableware, when the first valve is in an open state, the air pump is started again, and air is guided by the second gooseneck pipe through the one-way valve, the hose, the rubber ball, the collecting pipe and the straight-through pipe, so that the crack position of a plastic cup can be detected; by means of mutual cooperation of the second mechanism, the collecting pipe, the straight-through pipe and the rubber plug, air on the inner side of the plastic cup can be sucked aw