Precoated sand molding auxiliary mechanism capable of efficiently controlling material overflow

Abstract

The invention provides a precoated sand molding auxiliary mechanism capable of efficiently controlling material overflow. The precoated sand molding auxiliary mechanism comprises a main body, wherein a fixed part is arranged inside the main body, and a spring mechanism is arranged inside the fixed part; and the upper end of the spring mechanism is fixedly connected with an induction air bag, the upper end of the induction air bag is provided with and connected with a pull rope, and the shaft end of the pull rope is fixedly connected with a movable part. According to the precoated sand molding auxiliary mechanism capable of efficiently controlling material overflow, through continuous adding of precoated sand and relative movement of movable gear baffles, a feeding port is closed so that the precoated sand cannot continuously enter, it is guaranteed that the situation that equipment in the main body operates in an overload mode due to excessive precoated sand is avoided, meanwhile, the equipment achieves the effect of avoiding the influence on steel casting caused by defects of castings caused by excessive addition of the precoated sand, the arrangement of the mechanism is beneficial to improving the molding effect of the castings, and meanwhile, the production efficiency of manufacturers is improved.

Description

technical field [0001] The invention belongs to the technical field of coated sand, and in particular relates to a coated sand molding auxiliary mechanism for efficiently controlling material overflow. Background technique [0002] Coated sand is a molding sand or core sand coated with a layer of binder before the surface of the sand is molded. The sand mold is formed by curing the binder. The coated sand shell has no layer, good thermal stability, and easy to peel off The moldability is good, the surface of the castings produced is smooth and the finish is high, and the coated sand is widely used in the production of complex castings such as automobile cylinder blocks, cylinder heads, intake manifolds, various pipe fittings, and pump bodies. [0003] With the development of science and technology in recent years, iron and steel casting technology has made great progress by leaps and bounds. Among them, the new technology and technology of coated sand molding have been vigor...

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Problems solved by technology

[0003] With the development of science and technology in recent years, iron and steel casting technology has made great progress by leaps and bounds. Among them, the new technology and technology of coated sand molding have been vigorously promoted and applied. The traditional coated sand moldi

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