A core box mold for front suspension and rear bracket

Abstract

The invention provides a core box mold with a front suspension support and a rear support. The core box mold comprises a sand cover mold body and a sand base mold body; a left mold cavity A, a middle cavity B and a right cavity C are formed in the sand base mold body, are mutually independent and do not communicate with each other; a sand shooting opening is formed in the upper side of the upper surface of the left cavity A and is a flat type sand shooting opening; a small sand shooting opening is formed in the middle cavity B; air exhaust grooves B are formed in the two sides of the middle cavity B; and an opening of the right cavity C is formed in the upper side of the sand cover mold body. The core box mold has the beneficial effects that core making of cores is independently set on the core box mold, and therefore the steps of manufacturing the cores can be simplified, the material consumption can be reduced, the cost can be reduced, and the follow-up mechanical machining procedures can also be reduced; and a flat type sand shooting opening is formed, and therefore the sand shooting speed can be increased, and by means of the independent air exhaust groove structures, the rejection rate of core making can be effectively decreased.

Description

technical field [0001] The invention relates to the field of tooling for core shooters, in particular to a core box mold for a front suspension and rear bracket. Background technique [0002] At present, my country's foundry industry generally uses hot core boxes to manufacture sand cores. The production process is roughly as follows: the sand material mixed with foundry sand, thermosetting resin and catalyst is injected into the core box with a heating device through a core shooter, and heated to 250 to 320 degrees Celsius to make the sand material close to the surface of the core box When heated, the binder in the sand can be polycondensed and hardened in a short period of time to form a core. The foundry sand is generally injected into the cavity of the hot box mold through the sand injection nozzle. [0003] Due to the large cavity, there are many wastes in the cavity. If the exhaust groove is not set or is too small, the quality and speed of core making will be affect...

AI Technical Summary

Problems solved by technology

[0003] Due to the large cavity, there are many wastes in the cavity. If the exhaust groove is not set or is too small, it will affect the quality and speed of core making.

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