Double-shaft linkage sand box forming equipment with active side pressure

Abstract

The invention discloses double-shaft linkage sand box forming equipment with active side pressure, and belongs to the field of sand box forming. The double-shaft linkage pressure applying mechanism comprises an upper sand box, a lower sand box and a double-shaft linkage pressure applying mechanism, the upper sand box and the lower sand box are of the same structure and each comprise a front side plate, a rear side plate parallel to the front side plate, a left side plate and a right side plate, and the left side plate and the right side plate are arranged between the front side plate and the rear side plate in a synchronous reverse sliding mode in the X direction and are parallel to each other. The composite template is arranged between the left side plate and the right side plate in a sliding manner along the Z direction; a side plate locking spring is also arranged between the left side plate and the right side plate; the double-shaft linkage pressure applying mechanism comprises a connecting rod A, a connecting rod B, a connecting rod C, a connecting rod D, a linkage pressure applying rod and a synchronous pressure applying rod. According to the double-shaft linkage sand box forming equipment, the volume of the cavity is changed through up-down sliding and length changing of the composite template, and therefore Z-direction active positive pressure and X-direction active side pressure are applied to molding sand at the same time.

Description

technical field [0001] The invention mainly relates to the field of sand box molding, in particular to a dual-axis linkage sand box molding equipment with active side pressure. Background technique [0002] Sand casting is the main method of foundry production, and the sand box for preparing sand molds and molding sand is one of the most important equipment for sand casting. The sand box molding equipment in the prior art usually adopts one-dimensional positive pressure when compressing the sand, that is, applies pressure along the direction perpendicular to the parting surface, such as template pressurization equipment, platen pressurization equipment and counter-pressurization equipment. Although the Z-direction compaction of the molding sand in the sand box has been realized in the prior art, since the X-direction and Y-direction pressures in the parting surface are passive pressures, the compression uniformity of the molding sand in the sand box is not enough, and each p...

AI Technical Summary

Problems solved by technology

The sand box molding equipment in the prior art usually adopts one-dimensional positive pressure when compressing the sand, that is, applies pressure along the direction perpendicular to the parting surface, such as template pressurization equipment, platen pressurization equipment and counter-pressurization equipment. Although the Z-direction compaction of the molding sand in the sand box has been realized in the prior art, since the X-direction and Y-direction pressures in the parting surface are passive pressures, the compression uniformity of the molding sand in the sand box is not enough, and each part in the sand mold Part of the pressure difference is large, reducing the casting accuracy

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