Auxiliary device for hot-method production process of precoated sand before molding

Abstract

The invention relates to the technical field of precoated sand molding, and discloses an auxiliary device for a hot-method production process of precoated sand before molding. The auxiliary device comprises a machine shell, wherein a rotating wheel is rotatably connected in the machine shell, a control wheel is rotatably connected to the surface of the rotating wheel, a connecting rod is rotatably connected to the surface of the control wheel, a first magnetic block is fixedly connected in the control wheel, a first push rod is arranged at the bottom of the control wheel, and a second magnetic block is fixedly connected into the first push rod. According to the auxiliary device for the hot-method production process of precoated sand before molding, a disc extrudes a first push block downwards through an extension block, so that the first push block extrudes a spring on the surface of a second stop block, the spring slides in the disc along with the extension block, when a movable contact is in contact with a fixed contact, an electromagnetic device drives the second push block to slide towards the two sides by attracting a third magnetic block, and the second push block loosens the resistance to the second stop block, so that the second push rod quickly knocks a mixture downwards, and the automatic crushing effect is achieved.

Description

technical field [0001] The invention relates to the technical field of coated sand molding, in particular to an auxiliary device for the production process of coated sand thermal method before molding. Background technique [0002] With the continuous development of social and economic conditions, coated sand has been widely used in steel castings or iron castings and other production industries. Coated sand refers to molding sand or core sand coated with a solid resin film before molding. There are two methods of coated sand process for the products formed on the surface, which are cold method and hot method. The hot method refers to adding resin, urotropine aqueous solution and lubricant after the sand is preheated, and then cooling, crushing and Sieve to get coated sand. [0003] Now the coated sand obtained after thermal production is generally placed on the push device, waiting for natural air drying and cooling, which takes a long time, which will slow down the produc...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an auxiliary device for the production process of the coated sand thermal method before molding, which has the advantages of high production efficiency and an automatic crushing device, and solves the problems of low production efficiency and lack of existing coated sand devices. Problems with automatic breakers

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