Manual core box core ejecting mechanism and core making method

Abstract

The invention discloses a manual core box core ejecting mechanism and a core making method. The manual core box core ejecting mechanism comprises a sand reducing block, a core box cavity movable block component, a bottom mold, a core box wood frame component, a nut, a bolt, a core ejecting fixed distance block, a lifting lug, a core box substrate, a sand reducing block positioning block and a core ejecting rod. The manual core box core ejecting mechanism is characterized in that the sand reducing block positioning block is arranged on the core box wood frame component for positioning the sand reducing block mounted on the core box wood frame component. The core ejecting fixed distance block is arranged between the core box substrate and the core ejecting block; and when the core ejecting fixed distance block is removed, the core box substrate and the bottom mold drop on the core ejecting plate under the effect of self gravity or external force, and a sand core is deviated from the bottom mold. The manual core box core ejecting mechanism has the advantages of simple structure, convenience for use, low labor intensity, high core making efficiency, good core making quality and low mold cost, can be applied to various types of manual core box molds, and can realize the functions of core ejection and mold drawing without needing an additional core shooting machine.

Description

Technical field [0001] The invention relates to a manual core box top core mechanism and a core making method, in particular to a manual core box mold for making super large sand cores. Background technique [0002] The body of a heavy-duty diesel engine is huge, and accordingly, the volume and weight of the sand core and mold are huge. Compared with small and medium-sized diesel engines, the annual output of heavy-duty diesel engines is less. From the perspective of cost, casting is generally not carried out on the production line. Because the sand core is large and limited by the scope of the core shooting equipment, the sand core is generally made of a manual core box. [0003] When the traditional manual core box core is made, since there is no core ejection mechanism and the sand core is huge, the manual core box is generally turned over manually or by a crane, and then five or six workers lift the core box up and down or beat the back of the core box mold Until the sand cor...

AI Technical Summary

Problems solved by technology

[0003] In the traditional manual core box core making, because there is no core lifting mechanism and the sand core is huge, the manual core box is generally turned over manually or by a crane, and then five or six workers lift the core box up and down, shake it up and down or knock on the back of the core box mould. , until the sand core is separated from the core box, which not only increases the labor intensity and labor cost, but also easily damages the sand core, seriously affecting the quality and efficiency of core making

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