Sand mould casting and molding process

Abstract

The invention discloses a sand mould casting and molding process and relates to the technical field of casting. The sand mould casting and molding process includes: respectively placing two casts consistent in type into an upper placing seat and a lower placing seat, wherein each of the upper placing seat and the lower placing seat is provided with a lifting mechanism and an interface; using the lifting mechanisms to lift the two casts to allow the casts to be exposed out of the interfaces; forming a lower sand mould, to be more specific, mounting a lower sand box above the lower mounting seat, and filling resin self-hardening sand to obtain the lower sand mould; forming an upper sand mould, to be more specific, mounting an upper sand box above the upper mounting seat, filling resin self-hardening sand, and inserting a gate stick to obtain an upper sand mould; removing the upper sand box and the lower sand box, and taking out the upper sand mould and the lower sand mould; performing shakeout on the casts, and using the lifting mechanisms to completely descend the casts to positions below the interfaces. Different from manual molding and odd-side molding, the sand mould casting and molding process has the advantages that the principles of the manual molding are used, reserved pits in the ground are not needed, working hours are reduced, and the operation requirements on workers are lowered.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a sand casting molding process. Background technique [0002] In my country and in the world, most castings are produced by sand casting method. Sand casting refers to the casting method in which molds and sand cores are made of mold (core) sand with certain performance through different compaction methods. It has flexibility. Large, short production cycle, low price and other advantages. [0003] Molding refers to the process of manufacturing sand molds with technological equipment such as molding sand, patterns, and sand boxes. Core making is the process of making core sand into a core that conforms to the shape of the core box. At present, molding is divided into manual molding and machine molding. In manual molding, when the largest cross-section of the casting is not at the end, and the shape is inconvenient to split, sand digging molding and fake box molding will be used....

AI Technical Summary

Problems solved by technology

At present, molding is divided into manual molding and machine molding. In manual molding, when the largest cross-section of the casting is not at the end, and the shape is inconvenient to split, sand digging molding and fake box molding will be used. However, the existing molding process needs to be found manually. The parting surface (parting surface) requires manual flipping of the castings, which requires high operating requirements for workers and complicated processes, and mentions the man-hours of casting production

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