Cold core manufacturing mold and cold core sand mold manufactured by cold core manufacturing mold

Abstract

The invention provides a cold core manufacturing mold and a cold core sand mold manufactured by the cold core manufacturing mold. The cold core manufacturing mold comprises a mold body, wherein a plurality of exhaust holes and a plurality of ejector rod holes are formed in the mold body; bosses are processed at positions of the plurality of exhaust holes and the plurality of ejector rod holes on a mold parting surface of the mold body; an exhaust plug is arranged at the top end of each of the plurality of exhaust holes; a plurality of grooves in one-to-one correspondence with the bosses are formed in a sand mold parting surface after the mold body of the sand mold is ejected out by means of ejector rods when forming the sand mold; burrs generated by the exhaust plugs and the ejector rods are located at the bottoms of the grooves; the mold closing parting surface is avoided; the situation that matching of the sand mold is influenced because the burrs are not removed is avoided; and the casting quality is improved.

Description

technical field [0001] The invention relates to the technical field of cold core manufacturing, in particular to a cold core manufacturing mold and a cold core sand mold manufactured therefrom. Background technique [0002] The cold box method production line has the advantages of high production efficiency, energy saving, high surface quality, good collapsibility and relatively low production cost. It has become the first choice for the majority of production enterprises to save costs and improve efficiency. [0003] Since the cold box is produced by blowing triethylamine into the catalyst as a curing method, no heating is required. Compared with the general hot box that needs to be heated, the burrs generated at the exhaust plug and ejector pin on the cold core sand mold are not easy to detect And cleaning, affecting the cold core sand mold fit and further affecting the quality of castings, resulting in increased scrap rate and increased company costs. Contents of the in...

AI Technical Summary

Problems solved by technology

[0003] Since the cold box is produced by blowing triethylamine into the catalyst as a curing method, no heating is required. Compared with the general hot box that needs to be heated, the burrs generated at the exhaust plug and ejector pin on the cold core sand mold are not easy to detect And cleaning, affecting the cooperation of cold core sand molds and further affecting the quality of castings, resulting in increased scrap rate and increased company costs

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