Corbel sand core hot core box

Abstract

The invention discloses a body bolster sand core hot core box. The body bolster sand core hot core box comprises a fixed die module and a movable die module which are oppositely arranged, wherein the fixed die module comprises a fixed die and a fixed die core ejector assembly; the fixed die core ejector assembly comprises a plurality of fixed die core ejector rods; movable ends of the fixed die core ejector rods penetrate through the fixed die to communicate with a cavity to eject a sand core formed in the cavity; the movable die module comprises a movable die and a movable die core ejector assembly; the movable die core ejector assembly comprises a plurality of movable die core ejector rods; and movable ends of the movable die core ejector rods penetrate through the movable die to communicate with a cavity to eject a sand core formed in the cavity. The hot core box comprises the fixed die module and the movable die module which are oppositely arranged, the cavity used for forming the body bolster sand core is formed between the fixed die module and the movable die module, when the hot core box is matched with a core shooter for utilization, automatic die combination, automatic die opening and automatic core discharge are achieved, operation is further facilitated, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy sand core casting, in particular to a corbel sand core hot core box and a molding method. Background technique [0002] The sand core of the inner cavity of the shape-casting aluminum alloy bolster has a large size, complex structure, high surface finish, and low gas generation requirements. Traditionally, a cold box is used to manually make furan resin sand cores. In order to solve the problems of sand core strength and gas generation, it is necessary to set core bone and air passages. The operation is cumbersome, the production efficiency is low, and the qualified rate of sand cores is also low. Contents of the invention [0003] It is necessary to propose a corbel sand core hot core box which adopts film-coated core sand material and machine-made core. [0004] It is also necessary to propose a corbel sand core forming method. [0005] A corbel sand core hot core box, comprising a fi...

AI Technical Summary

Problems solved by technology

[0002] The sand core of the inner cavity of the shape casting aluminum alloy bolster is large in size, complex in structure, high in surface finish, and requires low gas generation

Traditionally, a cold box is used to make furan resin sand cores by hand. In order to solve the problems of sand core strength and gas generation, it is necessary to set core bone and air passages. The operation is cumbersome, the production efficiency is low, and the qualified rate of sand cores is also low.

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