Compression type evanescent mode and pouring method for evanescent mode casting

Abstract

The invention discloses a compaction type evanescent mode and a pouring method for evanescent mode casting, the compaction type evanescent mode comprises a compaction table body and a mold arranged on the compaction table body, and further comprises a compaction table arranged on the peripheral side of the compaction table body, a compaction assembly is arranged on the compaction table in the vertical direction in the mold, and the compaction assembly is used for being connected with a sand conveying pipeline; the pressing assembly comprises a clamping strip; and the base is arranged on the pressing table, an annular seat is vertically arranged on the base in a sliding mode through a driving unit, and a convex pressing assembly is arranged on the annular seat. According to the compression type evanescent mode and the pouring method for evanescent mode casting, the driving unit can enable the ring base to slide in the vertical direction of the base in a reciprocating mode, and then when the ring base descends, through linkage of the convex pressing assembly and the clamping strip, the compression assembly extrudes molding sand located in the mold; and the molding sand is extruded through the pressing assembly, manpower is not needed, and the vibration molding efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of lost foam casting, in particular to a compacted lost foam and a pouring method for lost foam casting. Background technique [0002] As we all know, lost foam is one of the most advanced casting techniques in the world at present. Its casting process is to first use paraffin or foam to make the product model that needs to be cast, and then apply high-temperature resistant paint on the surface of the model. After the paint is dry, put The product model is placed in a special sand box, and the sand box is placed on the vibrating table by a crane. During the process of filling dry sand, it cooperates with the vibrating table to vibrate and shape. After the sand filling is completed, the molten metal is cast in the sand box under vacuum. During this process, the product model gasifies and disappears, and the molten metal replaces the model, and the casting is formed after cooling. [0003] For example, the pu...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the prior art including the above-mentioned patents is that in the process of filling dry sand into the sand box, because there is no smoothing device, the staff needs to manually repeatedly fill the sand box. Smoothing of sand inside, which leads to reduced efficiency of dry sand vibratory molding

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