Injection molding workpiece cooling mold and cooling method

Abstract

The invention discloses an injection molding workpiece cooling mold and a cooling method. The injection molding workpiece cooling mold comprises a cooling mold body, a shape righting surface matched with the shape of a to-be-cooled workpiece is arranged on the top of the cooling mold body, a mold hollow cavity with one side open is formed in the middle-lower part of the cooling mold body, the moldhollow cavity communicates with the shape righting surface through a plurality of vertical through holes, and the mold hollow cavity is connected with a vacuum-pumping system. The process of coolingand shape righting can be conducted on the workpiece in the state of free contraction, and whether deformation exists or not is judged in the shape righting process so that adjustment can be conductedin time, and thus the cooling and the shape righting are guaranteed.

Description

technical field [0001] The invention relates to the field of investment precision casting, in particular to a mold for cooling an injection molding workpiece and a cooling method. Background technique [0002] Injection molding is widely used in the field of investment casting, such as ceramic core compression molding and wax film molding process using injection molding method. One of the characteristics of injection molding materials is that they have strong fluidity at high temperatures and certain strength after solidification at low temperatures. This characteristic of injection molding materials often leads to plastic deformation of injection molded workpieces during cooling from high temperature to low temperature, requiring the use of special tooling to assist cooling and correction. The cooling mold is an important auxiliary cooling orthopedic tooling. The surface of the mold is the same as the profile of a certain side of the workpiece. After the workpiece is place...

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