Sand mold spraying device

Abstract

The invention discloses a sand mold spraying device. The sand mold spraying device comprises a workbench. A paint recycling box is arranged beside the workbench. The section of the paint recycling boxis a triangle. The workbench is provided with a support frame on one side of the paint recycling box. A lifting motor is arranged above the support frame. A threaded rod is connected with an output shaft of the lifting motor. A lifting sliding block is arranged on the threaded rod. A base frame is hinged to the outer end of the lifting sliding block. A plurality of paint spray heads are arrangedon the base frame. A paint mixing barrel and a delivery pump are arranged inside the workbench. A paint storage barrel is arranged below the paint mixing barrel. The input end of the delivery pump communicates with the paint storage barrel. The output end of the delivery pump is connected with the multiple paint spray heads through delivery hoses respectively. The sand mold spraying device can effectively and evenly mix paint for spraying, and can spray paint onto the inner wall of a sand mold while mixing the paint, and because the working steps of paint mixing and spraying can be carried outwithout mutual influence, the working efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of mold manufacturing, in particular to a sand mold spraying device. Background technique [0002] Sand casting is a casting method that produces castings in sand molds: fill the sand box with sand with sand molds, inject molten metal into the sand mold through the sprue cup, and form castings after the molten metal cools in the sand mold. The sand box is usually divided into an upper sand box and a lower sand box. When the upper sand box and the lower sand box are combined, the openings of the upper sand box and the lower sand box are combined to form a closed cavity. Before injecting molten metal into the sand mold, it is necessary to spray the inner wall of the sand mold and paint the inner wall of the sand mold. The second is to prevent the cooled metal casting from sticking to the cavity or parting surface, which is not conducive to demoulding. However, the existing sand mold spraying device cannot mix the pain...

AI Technical Summary

Problems solved by technology

However, the existing sand mold spraying device cannot mix the paint and spray the paint on the inner wall of the mold cavity in the sand box at the same time. It is necessary to use a special raw material mixing device to mix the raw materials, and then inject the mixed paint into the spraying device. Spraying takes up too much work space. When spraying the inner cavity of the sand mold, it is necessary to spray the inner cavity of the sand mold with a manual hand-held spray gun. The spraying is uneven and the work efficiency is low.

In addition, the liquid paint is prone to sedimentation during the spraying process, and the excess paint cannot be collected at the same time, which will cause pollution to the workbench

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