Investment cast shell crushing, grading and screening system

Abstract

The invention relates to an investment cast shell crushing, grading and screening system comprising a vibration cleaning and shakeout mechanism, a grinding and crushing mechanism, a gear pair rolling mechanism and a grading and screening mechanism which are connected through a conveyer belt. When mould sand is cleared, an investment cast is arranged on the vibration cleaning and shakeout mechanism; the mould sand outside the cast is vibrated to a shakeout collection hopper, conveyed into the grinding and crushing mechanism and the gear pair rolling mechanism, so that large caked mould sand can be crushed; and the mould sand is conveyed to the grading and screening mechanism to be graded and collected according to the sizes of the mould sand particles after being crushed. According to the mould sand grading and screening system in the structure, an assembly line which carries out sand cleaning, shakeout, crushing and screening processes on the investment cast automatically, no manual operation is needed, so that the mechanical automation degree is high, the working efficiency and the reuse rate are greatly improved, the labor intensity of a worker is reduced, dust is not scattered, and green manufacturing, environmental protection and sustainable development are realized.

Description

technical field [0001] The invention relates to a screening device, in particular to a device capable of classifying and screening recycled investment casting shells. Background technique [0002] Investment casting, also known as "lost wax casting", usually refers to making a pattern from a fusible material, coating several layers of refractory material on the surface of the pattern to make a shell, and then melting the pattern out of the shell to obtain a non-parting surface The casting mold can be filled with sand and poured after high-temperature roasting. It is suitable for the production of small parts with complex shapes, high precision requirements, or difficult other processing, such as blades of turbine engines, etc. After the investment casting is cast, the molding sand needs to be removed from the casting. The removed sand mold needs to go through sand cleaning, sand shakeout, crushing and sorting processes, and finally realize the recycling and reuse of the mo...

AI Technical Summary

Problems solved by technology

Describe the traditional method and its shortcomings according to the actual situation: For example: the traditional method uses workers to clean up, because the sorting is not standardized during cleaning, and the recycling rate of molding sand is not high, resulting in waste of resources

The work efficiency of workers is slow, and the dust and noise are large, which have a great impact on the physical and mental health of workers

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