Technology of sand-covered sprue cup with core and capable of being recycled

Abstract

The invention discloses a technology of a sand-covered sprue cup with a core and capable of being recycled. A shape-adapting sprue cup iron mold is designed and a formed sprue cup mud core is placed in the middle of the iron mold. After pouring, the formed sprue cup mud core is attached to a red hot sprue cup by being baked under heat and a sprue cup with sand in the middle is removed. The formed sprue cup mud core can be recycled by being ejected out with the shape-adapting sprue cup iron mold. According to the technology of the sand-covered sprue cup with the core and capable of being recycled, the cost is low, the precoated sand for manufacturing the core can be recycled; the number of working personnel in manufacturing the core with the sprue cup is reduced, the strength is reduced and the efficiency is improved. The weight of the mud core of each sprue cup is reduced and the sprue cup is conveyed conveniently and lightly. The sprue cup is easy to pour and place as long as the core is ejected out with the sprue cup iron mold. The shape-adapting sprue cup iron mold does not need to heat the precoated sand or to be conveyed. The sand-covered sprue cup can be recycled and losses are not generated.

Description

technical field [0001] The invention relates to a casting molding and core-making process, in particular to a recyclable sand-covered sprue cup process with a core. Background technique [0002] The traditional sprue cup manufacturing method is generally divided into two types: one is the wet sand belt iron sprue ring sprue cup, which is made manually or machine-made, but the wet sand sprue cup is heavy due to the weight of the wet sand sprue cup during multi-line mass production. , the transportation path is long, and the labor intensity of the workers is high; the other is the sand-covered sprue cup, which uses the surface of the iron sprue ring to heat and artificially add sand to cover the sand, and uses the iron sprue ring with waste heat after pouring to heat and artificially add sand to solidify Cover sand and recycle, but make sure that the iron sprue ring does not cool down. The work rhythm is high and the production efficiency is low. There are generally phenomena...

AI Technical Summary

Problems solved by technology

[0002] The traditional sprue cup manufacturing method is generally divided into two types: one is the wet sand belt iron sprue ring sprue cup, which is made manually or machine-made, but the wet sand sprue cup is heavy due to the weight of the wet sand sprue cup during multi-line mass production. , the transportation path is long, and the labor intensity of the workers is high; the other is the sand-covered sprue cup, which uses the surface of the iron sprue ring to heat and artificially add sand to cover the sand, and uses the iron sprue ring with waste heat after pouring to heat and artificially add sand to solidify Cover sand and recycle, but make sure that the iron sprue ring does not cool down. The work rhythm is high and the production efficiency is low.

The phenomenon of high labor intensity, high production cost and low production efficiency is common.