The utility model discloses an automatic detection and waste rejection device for an injection blow molding machine, comprising: an L-shaped support column; a detection structure comprising a scanner, a data analyzer arranged at the top of the scanner, and a first power supply arranged at the top of the data analyzer; a waste rejection structure comprising a support plate, a proximity reactor arranged at the bottom of the support plate, an air cylinder, and a second power supply arranged at the top of the support plate. The first support rod and the second support rod are both of a hollow structure, an air pipe is connected to the air cylinder, the free end of the air pipe sequentially passes through the hollow structure of the second support rod and the support plate and is communicated with an air source, an electromagnetic valve is arranged on the air pipe, and the second power supply, the data analyzer and the electromagnetic valve are all electrically connected with the proximity reactor. The automatic detection and waste rejection device for an injection blow molding machine provided by the utility model can automatically and effectively reject unqualified plastic bottles, ensuring that unqualified finished products do not flow into the next process.

Country Code: CN

Application Number: CN201820062002.7