Automatic magnesium alloy cast liquid guiding tank and working method thereof

The invention relates to an automatic magnesium alloy cast liquid guiding tank and a working method thereof. The liquid guiding tank comprises a liquid guiding tank body, a resistance heater, a heat-insulating pot and a drain pipe, wherein the automatic magnesium alloy cast liquid guiding tank further comprises an automatic control system and a cone valve, the automatic control system further comprises an electrical control device and a transmission device, the electrical control device is used for controlling the up and down motions of the cone valve through the transmission device, so that the lower end of the cone valve can prop and seal a through hole, therefore, the opening and the closing of the drain pipe can be controlled. In the automatic magnesium alloy cast liquid guiding tank provided by the invention, the up and down motions of the cone valve can be controlled through the automatic control system, therefore, the opening and the closing of the drain pipe can be controlled, magnesium alloy liquid is enabled to evenly flow out to a crystallizer through a drain pipe, the size of the clearance between the cone valve and the through hole can be controlled, the purpose of automatically controlling the magnesium alloy liquid flow rate and flow to meet the requirements of a crystallizer is achieved, a great amount of manpower is saved, and cast quality is ensured at the same time.