Sand shooting device used for manufacturing process and capable of improving sand core quality

Abstract

The invention discloses a sand shooting device used for a manufacturing process and capable of improving sand core quality. The sand shooting device comprises a T-shaped circular-tube sand feeding tube, a sand shooting amount regulating tube, a fixed bolt and a sealing ring, wherein the T-shaped circular-tube sand feeding tube is directly mounted in a sand shooting cavity of a movable sand shooting head of a core making machine; the sand shooting amount regulating tube is mounted on the T-shaped circular-tube sand feeding tube; and a plurality of gas vents are formed in the upper end of the T-shaped circular-tube sand feeding tube. In a core making process, the sand shooting device can regulate the core sand amount in the movable sand shooting head of the core making machine according to the unit weight of the sand core, so that the technical problem generated in production of a relatively small sand core or a turbine housing runner core with a special shape structure by medium and large core making machines is solved, and therefore, sand blowing pressure in a sand blowing process is guaranteed, the hollow sand blowing defect of the sand core is reduced, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of casting molds, in particular to a sand shooting device for improving the manufacturing process of sand core quality. Background technique [0002] The core-making process of the sand-shooting device is widely used in the auto parts casting industry. The core-making enterprises generally use the sand-shooting device core-making machine to produce sand cores. The size and model of the core-making equipment are different, and they are suitable for the production of sand cores of different sizes. , when using a large-scale core-making machine to produce smaller sand cores or turbine shell flow channel cores with special shapes and structures, the defect of sand core shooting is often not solid, which is not only difficult to debug, but also produces a large number of waste products, which seriously affects the production process , in order to improve production efficiency, reduce scrap rate, and enable large-scale core...

AI Technical Summary

Problems solved by technology

The invention solves the technical problem that medium and large machines cannot produce small sand cores, realizes the function that one core making machine can produce sand cores of different single weights, reduces equipment investment, ensures the sand blowing quality in the core making process, reduces The defect of unreal sand blowing on the sand core improves the production efficiency and reduces the investment of equipment and personnel

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