Automatic feeding device of viscosity reducer for oil extraction

The automatic feeding device is characterized in that a bearing supporting plate is clamped at the bottom end of an output shaft of a transmission motor, a storage fixing barrel is connected to the top end of a discharging pipe in a penetrating mode, a pressing spring is welded to the inner side of the storage fixing barrel, and a sealing limiting block is welded to the bottom end of the pressing spring; a lower pressing auxiliary rod is clamped to the bottom end of an output shaft of a lower piezoelectric push rod, a bearing supporting plate and a storage fixing barrel are driven by a transmission motor to rotate, and raw materials are put into the inner side of the storage fixing barrel through the storage fixing barrel and a discharging pipe, so that the raw materials can be quickly stored before mixing; and a downward pressing auxiliary rod is driven by a downward pressing electric push rod to push a sealing limiting block, so that the storage fixing cylinders at different positions are quickly opened, mu