A core box for a core shooter

Abstract

This application relates to a core box of a core shooter, and relates to the technical field of ductile iron pipe cores, which includes a base, a lower mold, an outer mold, a core mold and an upper mold, the lower mold is fixedly connected to the base, and the outer mold is arranged on the base On the top, the outer mold includes a first half-mold and a second half-mold, the inner peripheral surfaces of the first half-mold and the second half-mold are in contact with the outer peripheral surface of the lower mold, the core mold is coaxially arranged in the outer mold, and the core mold The bottom end surface is also in contact with the top surface of the lower mold, the upper mold cover is arranged on the outer mold, the top surface of the core mold is in contact with the bottom end surface of the upper mold, and a cavity is formed between the lower mold, the outer mold, the core mold and the upper mold. The end of the mold cavity close to the upper mold is a sand core disc cavity, and the upper mold is provided with a sandblasting hole and a top vent hole, and the end of the sand blast hole and the top vent hole close to the sand core disc cavity is connected with the sand core disc cavity. The sand core produced by the application does not produce residual material, saves core sand and labor, improves the production efficiency of the sand core, and improves the casting precision when the sand core is used.

Description

technical field [0001] The present application relates to the technical field of ductile iron tubular cores, in particular to a core box of a core shooting machine. Background technique [0002] In order to form the internal shape of the socket end of the ductile iron pipe, a sand core needs to be placed inside the socket end of the pipe mold. Every time a ductile iron pipe is poured, a sand core needs to be consumed. The cavity inside the socket end of the pipe mold and the outside of the sand core The socket end of the ductile iron pipe is formed between them. [0003] refer to figure 1 , most of the sand cores produced by the current core making machine include a working part 81, a sand core plate 82 and a surplus material part 83. When using the sand core, the working part 81 directly participates in the molding of the socket end of the ductile iron pipe, and the sand The end surface of the core plate 82 away from the working part 81 is in contact with the air, and doe...

AI Technical Summary

Problems solved by technology

[0004] Most of the sand cores are made by a core making machine and a core box. The core box is provided with a cavity with the same shape as the sand core. The inventor believes that the sand core is easily damaged when the remaining material is removed, which reduces the accuracy of the sand core. , which in turn reduces the accuracy of the forming of the socket end of the ductile iron pipe; and wastes materials and increases the labor intensity of workers

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