INVESTMENT WAX MOLD

摘要

The present invention invention relates to a mold for easily separating between a wax model and a runner in the ejection of the wax model in precise casting, wherein a structure of the mold is for ejecting a wax model for precise casting, has a space forming a wax model by wax injected to be connected with a branch runner branched from a main runner into which wax is injected, and has a model unit including a gate to be separated vertically. The mold comprises a block part for separating between the wax model and the runner provided inside the lower mold at the separation site of the short side of the branched runner connected to the gate of the molding part, and therefore, when a release pin of the molding part is elevated by a cylinder module provided at the rear surface side of the lower mold, after the upper mold is opened, the branched runner and the wax model including the gate are simultaneously separated and the wax solidified in the branched runner is separated and cut from the branched runner. In the procedure of obtaining the wax model, which corresponds to a previous step of the precise casting work as investment casting, the wax model, which is injected into the mold by filling and then solidified, is extracted from the mold, and at the same time, the connection portion between the wax model and the runner connected to the wax model is cut, thereby eliminating the need of the separation of the runner and the finishing of the separation surface, which have been necessarily performed after the ejection of the wax model, and obtaining a completed wax model with high dimensional precision.