Core box for the production of rod-shaped sand cores

Abstract

Disclosed is a core shooting core box for producing rod-shaped sand cores. The core shooting core box comprises an upper core shooting core box and a lower core shooting core box which are subjected to mold splitting along the horizontal mold splitting face, sand shooting nozzles arranged at the top of the upper core shooting core box, exhaust holes formed in the bottom of the lower core shooting core box, sand core grooves extending towards the insides of the upper core shooting core box and the lower core shooting core box along the horizontal mold splitting face, mounting grooves and rod-shaped sand core boxes arranged in the mounting grooves. The mounting grooves extend towards the insides of the upper core shooting core box and the lower core shooting core box along the horizontal mold splitting face. The core shooting process that the rod-shaped sand core boxes are embedded in the core shooting core box is adopted for producing cores. The rod-shaped sand core boxes are of a horizontal mold splitting structure, and the rod-shaped sand core boxes are arranged vertically in the core shooting core box to be matched with the sand shooting nozzles and the exhaust holes. Compared with the prior art, the core shooting core box has the advantages that rod-shaped sand cores can be shot solidly, and accordingly the rod-shaped sand cores which are complete in size and sufficient in strength can be obtained.

Description

technical field [0001] The invention relates to the technical field of core-shooting and core-making in sand casting, in particular to a core-shooting core box for producing rod-shaped sand cores. Background technique [0002] In the foundry industry, for mass-produced castings, the sand cores used to produce such castings often use core-shooting machines to make cores. Using core-shooting machine cores has the characteristics of fast production speed, stable sand core size, and high strength. [0003] For the core shooting production of rod-shaped sand cores, when designing the core box, the largest cross-section of the rod core sand core is usually used as the sub-core surface. The layout of this type of sand core in the core shooting core box is a horizontal layout. The parting surface of the core box is the same as that of the core sand core. Along the parting surface, the core box is divided into an upper core box and a lower core box, and the corresponding core structu...

AI Technical Summary

Problems solved by technology

However, this kind of sand core layout generally has technical defects in the core shooting process, such as insufficient sand shooting or false sand shooting, which leads to the scrapping of the rod core.

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