Method and device for alarming blockage of metering tank

The invention discloses a metering tank blockage alarm method, which is characterized in that a detection device is arranged on a metering tank, the detection device is electrically connected with a controller, when the detection device is triggered, a high level signal can be output to the controller, and when the detection device is not triggered, a low level signal can be output to the controller; the material blockage alarm method comprises the steps that a controller receives a high level signal, and the controller controls a feeding mechanism to execute feeding for preset time; after the feeding process, whether the controller receives a low-level signal or not is judged; and if not, the controller controls the feeding mechanism to stop feeding. The metering tank can be automatically reset after being blocked, the stability of the system and the product quality is improved, flow fluctuation and material interruption are avoided, and the stability of production and products is improved. The invention fur