Integrated pressure casting die sprue bush

Abstract

The invention discloses an integrated pressure casting die sprue bush. The integrated pressure casting die sprue bush comprises a sprue bush body and a connected material trough connected with the sprue bush, wherein the sprue bush body is of a hollow square integral structure, one end of the sprue bush body is connected with a pressure casting machine, and the other end of the sprue bush body is matched with a die pressure chamber; a plurality of cooling water channels are arranged at the front end of the sprue bush body, communicate mutually and used for introducing a coolant, so that a sprue of the die is directly cooled; the connected material trough is of a hollow square integral structure; and one end of the connected material trough comprises a cooling sleeve outer ring (3), a cooling sleeve inner ring (4) and a chute (5). The sprue bush is of the integral square structure, the multiple cooling water channels are arranged in the positions, quite close to a material cake, above the sprue, the cooling effect on the end of the sprue is remarkably improved, the bursting danger caused by poor cooling of the material cake after die opening is completely avoided, and the problems of bursting and water leaking on the matching surfaces of traditional sprues do not occur in the using process.

Description

technical field [0001] The invention belongs to the technical field of casting, and more specifically relates to an integral die-casting mold sprue sleeve. Background technique [0002] The sprue sleeve, also known as the sprue, is a part of the runner that allows the molten material to be injected from the pressure chamber of the die-casting machine into the interior of the mold, and is used to connect the forming mold and the pressure chamber of the die-casting machine. In the die-casting process, the temperature control of the sprue sleeve is very critical to the product quality of the molded parts. [0003] Patent CN206065372U discloses a sprue sleeve of a die-casting mold, such as figure 1 shown. At present, most of the die-casting mold sprue sleeve structures in the die-casting industry adopt such as figure 1 In the sprue sleeve structure shown, the sprue sleeve mainly adopts a split structure, and the sprue sleeve part 1 and the outer ring of the cooling jacket 2 a...

AI Technical Summary

Problems solved by technology

[0004] (1) The water cooling jacket bursts and leaks under the influence of high temperature;

[0005] (2) The water delivery of the sprue sleeve can only be opened in the barrel part, and the sprue (cake) part at the front end of the sprue sleeve cannot be opened with a cooling channel, so that the sprue (cake) part of the mold cannot be cooled. Direct cooling causes the product cake to burst easily;

[0006] (3) Since the sprue (cake) of the product cannot be directly cooled, the temperature of the material sleeve is high, and the injection punch is easy to wear, which greatly reduces the service life of the injection punch and increases production costs; traditional methods such as figure 1 The material sleeve structure shown is relatively unstable, and the processing cost is relatively high

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