Master alloy bar demolding equipment

The invention belongs to the technical field of master alloy bar demolding, and particularly relates to master alloy bar demolding equipment which comprises a rack, a fixed disc is fixedly installed in the rack, a conversion disc is rotatably installed on the fixed disc, three sets of discharging grooves used for containing molds are formed in the outer ring of the conversion disc, and a hydraulic oil cylinder is arranged over one set of discharging grooves. Three groups of plugging mechanisms are arranged on the lower end face of the conversion disc, a release agent box is fixedly installed on the fixed disc, three groups of brushing rollers are rotatably installed in the release agent box, each plugging mechanism comprises a plugging plate, and the two sides of each plugging plate are connected with rotary connection shafts. And under the matching action of the bearing rod and the annular groove, automatic overturning of the plugging plate can be achieved, meanwhile, the mold can be subjected to casting, ba