Die-casting mold for thin-walled parts

Abstract

The invention relates to the field of die-casting molds, in particular to a die-casting mold for thin-walled parts, including a base, a fixed mold assembly, a movable mold assembly, a limiting assembly, an ejection assembly, a cooling assembly, a filling assembly and an exhaust assembly, and a fixed mold The assembly and the movable mold assembly are relatively arranged on the upper end of the base, and there are several restricting assemblies, the ejector assembly is arranged on the fixed mold assembly and is fixedly connected with the movable mold assembly, and the cooling assembly is arranged Inside the part, the filling assembly and the exhaust assembly are respectively installed at the lower end and the upper end of the fixed mold assembly. The present invention, through the setting of the limiting component and the ejecting component, completes the mold releasing work at the same time as the mold opening is completed, shortens the die-casting processing time, and improves the production efficiency. The molten metal continues to enter the cavity. On the other hand, it prevents the molten metal in the cavity from flowing back into the filling pipe to affect the molding of the product.

Description

technical field [0001] The invention relates to the field of die-casting molds, in particular to a die-casting mold for thin-walled parts. Background technique [0002] Die-casting mold is a liquid forging method. Its basic process is as follows: molten metal is first filled into the cavity of the mold by low-speed or high-speed casting. The mold has a movable cavity surface, which is pressurized as the molten metal cools. Forging not only eliminates the shrinkage cavity and porosity defects of the blank, but also makes the internal structure of the blank reach the broken grains of the forged state. The comprehensive mechanical properties of the blank are significantly improved. [0003] Chinese Patent No. CN105945255B discloses a thin-wall die-casting mold and die-casting equipment, which belongs to the field of die-casting and is used for producing die-castings. The die-casting mold of the present invention includes an outer gate and a runner connected with the outer gat...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned patents also have the following technical problems in use, first; due to the existence of the vent hole and the runner, the molten metal will enter the vent hole and the runner during the die-casting process, resulting in two defects in the formed product. There will be redundancy at the end, which will not only affect product quality, but also affect product release

Second; when the above-mentioned patent is in use, when the mold is released, the mold needs to be opened first, and then the mold is released through the mold release device, which not only has a complicated structure, but also affects the efficiency of the mold release. In addition, when the mold is opened, the product is easy to stick Attached to the upper mold, it needs to be fixed by core pulling, which further affects the efficiency of mold release and reduces the production speed

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