Outer mold forming mold of special-shaped conformal cooling water channel mold and used for casting

Abstract

The invention discloses an outer mold forming mold for a special-shaped conformal cooling water channel mold and used for casting. The outer die forming mold comprises an upper sand mold and a combined molding frame, the upper sand mold is covered at the top of the combined molding frame, a sand cavity is formed in the top of the upper sand mold, and a mold forming cavity is formed in the top of the combined molding frame; an inner cavity sand mold is arranged at the center of the mold forming cavity, and a plurality of layers of independent conformal water channel sand cores are arranged in the vertical direction of the peripheric side walls of the inner cavity sand mold; and the upper sand mold is internally provided with a casting opening formed along the periphery of the top of the mold forming cavity in a rain-pouring mode. The rapid cooling forming of the outer mold is facilitated, and a plurality of layers of independent annular conformal cooling water channels are built in theformed outer mold, so that rapid and uniform heat dissipation and cooling is facilitated when the outer mold forms a product; the rain-type casting opening enables uniform casting to be convenient, and the feeding efficiency is improved; and heat dissipation and disassembly of the combined molding frame of an overall metal material are convenient.

Description

technical field [0001] The present invention specifically relates to a molding die with an accompanying cooling water channel outer mold, in particular to an outer mold forming mold for a special-shaped following-shaped cooling water channel mold for casting. Background technique [0002] Generally, cup-shaped products need to be formed with the outer mold and the inner mold. The outer mold generally has a core cavity, and the inner mold is generally a core body. The core body is inserted into the core cavity and forms a cup-shaped cavity for molding. Generally, the outer mold Generally, the casting molding process is adopted. The casting mold of the outer mold is generally formed by metal block processing. The processing cycle is long and the consumables are high. Moreover, a single outer mold casting mold can only be applied to a single specification outer mold, and different outer molds need to be processed. Different outer mold forming molds have higher production costs,...

AI Technical Summary

Problems solved by technology

[0002] Generally, cup-shaped products need an outer mold and an inner mold to form together. The outer mold generally has a core cavity, and the inner mold is generally a core body. The core body is inserted into the core cavity to form a cup-shaped cavity for molding. Generally, the outer mold Generally, the casting molding process is adopted. The casting mold of the outer mold is generally formed through metal block processing. The processing cycle is long and the consumables are high. Moreover, a single outer mold casting mold can only be applied to a single specification outer mold, and different outer molds need to be processed. The production cost of different external molds is relatively high, and the general cooling water channel inside the external mold is a single channel, and the temperature drop difference between the two sides of the water inlet and outlet is large, resulting in uneven cooling and easily affecting the molding effect

[0003] During the casting process of the external mold forming mold, a sand mold for feeding and venting will be covered on the top of the mold cavity. At present, the casting cavity of the general upper sand mold is mostly single-channel, and the casting liquid is directly poured into the cavity through the casting cavity. In the cavity, it will affect the core sand or inner cooling iron in the cavity, and it will easily lead to uneven casting. Generally, the feeding area of ​​the riser is limited, and the feeding effect is poor.

Images