Exhaust system of injection mold

The utility model relates to an exhaust system of an injection mold, the exhaust system is arranged outside the injection mold and communicated with a mold cavity of the injection mold, the exhaust system comprises a vacuum pump and a control assembly, the vacuum pump comprises a vacuum pump main body, an air exhaust pipeline and an exhaust pipeline, one end of the air exhaust pipeline is communicated with an inlet of the vacuum pump main body; one end of the exhaust pipeline is communicated with an outlet of the vacuum pump body, the control assembly comprises a vacuum valve and an electromagnetic valve set, the vacuum valve is arranged on the exhaust pipeline and used for controlling connection and disconnection of the exhaust pipeline, and the electromagnetic valve set comprises a first electromagnetic valve. The first electromagnetic valve is connected with the vacuum valve and used for controlling opening and closing of the vacuum valve. The exhaust system disclosed by the utility model can comprehensive