Brake drum pouring mold

Abstract

The utility model discloses a brake drum casting mold which comprises a molding cavity, a mold core, a mold core and a mold core, the pouring part comprises a pouring cup and a liquid storage chamber, the pouring cup is provided with a filling port and is communicated with a hole in the side wall of the liquid storage chamber, the horizontal height of the liquid storage chamber is higher than that of the molding cavity, a fire inlet communicated with the molding cavity is formed in the bottom of the liquid storage chamber, and only holes communicated with the pouring cup and the molding cavity are formed in the side wall of the liquid storage chamber; the molding cavity and the pouring part are wrapped and supported by the sand box, and the filling port extends out of the top of the sand box. According to the utility model, the molding cavity is used for providing a cavity with a structure required for pouring the brake drum, the pouring part is used for pouring molten iron, and the pouring cup and the liquid storage chamber are used for providing a bent passage for the molten iron, so that the molten iron slows down and uniformly flows into the molding cavity; and meanwhile, in the forming process, the liquid storage chamber always stores high-temperature molten iron to supplement the looseness and shrinkage cavity defects of the casting in the molding cavity in time, an exothermic riser does not need to be arranged, and the pouring production cost and the process difficulty are reduced.

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