Pressure-casting die

Abstract

The invention discloses a pressure-casting die which comprises an upper die and a lower die. A long groove which penetrates the left and right sides is formed in the upper die, a transverse beam is movably arranged in the long groove and is provided with a reversely-pulling rod extending to an upper die cavity, a transverse beam pressure spring abutting against the transverse beam is further arranged on the upper side of the long groove, a first pull hook and a corresponding limiting structure are rotationally arranged on the left and right sides of the lower die, a hook part is arranged at the upper end of the first pull hook, a first protruding part extending towards the other side is arranged at the lower end of the first pull hook, the hook part hooks the end, extending out of the upper die, of the transverse beam, a torsional spring clamping the first pull hook is further arranged on a rotating shaft of the first pull hook, a pull rod is fixedly arranged on the side, provided withthe first protrusion part, of the first pull hook and on the upper die, a protruding first push block is arranged on the side, close to the first protruding part, of the lower portion of the pullingrod, and guide slopes are arranged at the two ends of the first pushing block. By means of the pressure-casting die, it can be guaranteed that all products rest on the lower die during molding, and therefore bending deformation of the molded products are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to an aluminum alloy die-casting mold structure. Background technique [0002] Existing aluminum alloy die-casting molds usually include an upper mold, a lower mold, a pouring system arranged on the upper mold, an ejection mechanism arranged on the lower mold, and a cooling system, etc. As far as the product with cavity is concerned, in order to facilitate the ejection of the product after molding, a concave cavity is usually set on the upper mold, and a convex core is set on the lower mold. When the upper and lower molds are combined, the upper mold The cavity of the molded product is formed between the cavity body and the core of the lower mold. After the product is formed and cooled, the upper and lower molds are separated, and the product stays on the lower mold by the mold core force generated by its cooling shrinkage. Finally, the product is pushed along the mold through the ej...

AI Technical Summary

Problems solved by technology

[0003] One purpose of the present invention is to solve the problem that the existing aluminum alloy die-casting mold is prone to product package upper mold and bending deformation when forming products with openings on both sides of the upper and lower sides, and to provide a method that can ensure that all products stay in the lower mold during molding. Die-casting mold, so as to effectively avoid bending deformation of the formed product

[0004] Another object of the present invention is to solve the problem that the existing aluminum alloy die-casting molds are difficult to simultaneously form the lateral forming hole and the radial blind hole on the inner wall of the lateral forming hole, and to provide a secondary core-pulling device. Die-casting mold, which can simultaneously form the lateral forming hole and the radial blind hole on the inner wall of the lateral forming hole at one time, thereby avoiding subsequent secondary machining and improving production efficiency

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