Core shooter with multiple shooting heads

Abstract

The invention discloses a core shooter with multiple shooting heads. The core shooter comprises a circular support and a supporting column arranged in the middle of the circular support, an annular supporting table is rotatably connected to the end, away from the circular support, of the supporting column, a hopper fixed to the supporting column is arranged in the center of the annular supportingtable, and a plurality of sand shooting hoppers are arranged on the annular supporting table in the circumferential direction of the annular supporting table at equal intervals; a plurality of sand conveying pipes and air cylinders are arranged on the hopper in the circumferential direction of the hopper, and orthographic projections of the sand conveying pipes and the air cylinders are not overlapped; the inner bottom of the hopper is provided with a polyhedral cone sand separator conveniently enabling precoated sand to quickly flow to each sand conveying pipe, each surface of the polyhedralcone sand separator respectively corresponds to a sand inlet of the corresponding sand conveying pipe, and the end, far away from the inner bottom of the hopper, of the polyhedral cone sand separatorupwards extends to the middle part of the hopper, wherein the numbers of the sand shooting hoppers, the sand conveying pipes and the air cylinders are kept consistent; and a plurality of movable moldsare arranged on one core shooting machine, manufacturing of a plurality of casting mold cores can be completed after one procedure is finished, and the manufacturing efficiency of the casting mold cores is obviously improved.

Description

technical field [0001] The invention relates to the technical field of core shooters, in particular to a multi-shooter core shooter. Background technique [0002] The core shooter is also known as "sand shooter" or "sand shooter", which is a coated sand molding core-making equipment that uses coated sand to make cores through the hot core box process. It is widely used in the production of large batches of small castings with high requirements for appearance quality. Its working principle is to fill the core sand containing phenolic resin into the heated metal core box and keep it for a certain period of time so that the core sand near the core box wall The resin in the shell core sand melts to bond the sand particles together, forming a plastic state shell layer with a certain thickness along the inner wall of the core box. After pouring out the excess core sand, continue heating for a certain period of time, and the core box will be opened. The shell core is ejected, that...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the core shooters at home and abroad are single-station core shooters or double-station core shooters. The double-station core shooters are equipped with two moving molds on one core shooter. The production of a casting core, while the single-station core shooter can only make one casting core at a time, and the production efficiency of the casting core is low.

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