Automobile precoated sand core shooting machine

Abstract

The invention discloses an automobile precoated sand core shooting machine and belongs to the technical field of mechanical equipment. The automobile precoated sand core shooting machine comprises a bracket (1), a rotating frame (2), a connecting rod (3), a sand hopper (4), an air cylinder (5) and a swing arm (6), wherein the bracket (1) is connected with the rotating frame (2) through the connecting rod (3); the connecting rod (3) is mounted at the bottom of the rotating frame (2); the sand hopper (4) is mounted at the bottom of the connecting rod (3); and the air cylinder (5) is mounted on the bracket (1) and is connected with the rotating frame (2) through the swing arm (6). The automobile precoated sand core shooting machine ensures personal safety of a worker and has greater popularization value in the technical field of mechanical equipment. A product manufactured by the automobile precoated sand core shooting machine has the advantages of being high in strength, smooth in surface and unlikely to absorb moisture and is convenient to store.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to an automobile film-coated sand core shooter. Background technique [0002] The coated sand mainly uses high-quality selected natural quartz sand as raw sand, thermoplastic phenolic resin, urotropine and reinforcing agent as raw materials. According to the different technical requirements of users, the ratio should be adjusted appropriately in terms of curing speed, release property, fluidity, collapsibility, surface finish of castings, storage, etc. It is one of the best molding materials for automobiles, tractors, hydraulic parts, etc. [0003] Precoated sand is a kind of molding sand or core sand whose surface is covered with a solid resin film before molding. There are two coating processes: cold method and hot method: the cold method dissolves the resin with ethanol, and adds urotropine during the sand mixing process, so that the two are coated on the surface o...

AI Technical Summary

Problems solved by technology

[0004] The film-coated sand core shooting machine in the prior art is mainly composed of a turret, a sand bucket fixed on the turret, and a sand core mold. The sand bucket can rotate with the turret, and the sand core mold is generally at a high temperature of 300°C. At present, the rotation of the sand bucket mainly depends on the manual rotation of the workers, the working environment is dangerous, and there is a potential hazard to the personal safety of the workers.

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