Former storage bucket and material jar pressure balance device of reaction injection molding device

The utility model discloses a former storage bucket and material jar pressure balance device of reaction injection molding device, including former storage bucket, the material jar, the nitrogen gas supply device, the nitrogen gas supply device is through an air reducing valve, first solenoid valve, connect former storage bucket behind the pressure sensor, the nitrogen gas supply device is throughthe 2nd air reducing valve, the second solenoid valve, binder jar behind the 2nd pressure sensor, a pressure sensor, the 2nd pressure sensor links to each other with the controller, be equipped withthird solenoid valve and third relief pressure valve on the pipeline between former storage bucket and the material jar, controller and first solenoid valve, the second solenoid valve, the third solenoid valve links to each other. The utility model discloses a former storage bucket of pressure sensor collection is with material jar interior pressure signal and send entry control the ware, and theswitching of each solenoid