Multifunctional sand box for casting

Abstract

A multifunctional sand box for casting comprises box walls at the peripheries and a box bottom. Structural steels for strengthening are installed on the peripheries of the box walls, vertical separating boards are arranged in the sand box to separate the sand box into small sand boxes which are not communicated, and an independent vacuumizing interface is arranged on the lateral face or / and the bottom face of each small sand box. The separating boards are added in the sand box, so that the sand box is separated into the small sand boxes, and reasonable size of the small sand boxes can be adjusted according to different casting pieces. Each small sand box has the independent vacuumizing interface, air between small sand boxes is not communicated, an independent negative pressure system guarantees that negative pressure in the small sand boxes does not influence on others, the negative pressure can be adjusted according to different requirements, cast production manufacturers do not need customize large-size sand box in order to give consideration to manufacture different casting pieces, generality of a production line is improved, overlapping investment of the production line is effectively avoided, and an evanescent mode induction doorsill is reduced.

Description

technical field [0001] The invention relates to mechanical casting, namely a multifunctional sand box for casting. Background technique [0002] At present, the existing sand box for casting includes a box body, a vacuum interface, a vacuum air channel and a sand barrier. The sand barrier on the side of the box is fixed on the side wall of the sand box with screws, and the bottom of the box The plate is fixed on the channel steel arranged in a cross shape at the bottom with screws, and there is a layer of screen between the sand separation plate, the box wall and the channel steel to isolate the molding sand. When in use, the sand box undertakes the molding and pouring work. When it is in the molding working state and needs to vibrate, the external vibration device clamps the sand box, so that both the external vibration device and the sand box are locked; when it is in the pouring state, the external vacuum pump passes through The pipeline is connected to the vacuum port o...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of low sandbox utilization rate of small castings in large sandbox casting and high molten iron pressure on a single pouring system during group casting, and provide a kind of reasonable structure, short molding time, energy saving, and can make A multi-functional sand box for casting that guarantees product output and improves production efficiency under the condition of product quality

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