Mold

Abstract

The invention provides a mold comprising a first mold core and a second mold core. A glue sealing surrounding wall is arranged on one side of a mold closing surface of the first mold core, an exhaustpassage is arranged on the second mold core, and the exhaust passage and the glue sealing surrounding wall are correspondingly arranged. When injection mold closing is performed, a cavity is formed between the first mold core and the second mold core, an exhaust cavity is formed between the glue sealing surrounding wall and the second mold core, the glue sealing surrounding wall isolates molten plastic in the cavity outside the exhaust cavity, a gap for leading air in the cavity into the exhaust cavity is arranged between the end face of the glue sealing surrounding wall and the second mold core, and the exhaust passage allows air in the exhaust cavity to flow outside the second mold core. The glue sealing surrounding wall can prevent the molten plastic from entering the exhaust cavity, the air in the cavity enters the exhaust cavity from the gap between the glue sealing surrounding wall and the second mold core, then the air is discharged outside the second mold core from the exhaustcavity through the exhaust passage, the air trapping phenomenon in the injection mold is prevented, and the injection molding quality of the product is improved.

Description

technical field [0001] The invention belongs to the technical field of injection molds, in particular to a mold. Background technique [0002] Existing industrial products usually adopt the injection molding process, and the most important thing in the injection molding process is the structure of the mold. In the production process of industrial products, when the mold is closed and injected with hot-melt plastic, air is often brought in, and the hot-melt When the shaped plastic flows in the cavity of the mold, it will squeeze the air. If the air cannot be effectively discharged, it will cause air trapping, which will affect the injection molding quality of the product. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mold, which aims to prevent air trapping during injection molding, so as to improve the quality of injection molding products. [0004] In order to solve the above-mentioned technical problems, t...

AI Technical Summary

Problems solved by technology

[0002] Existing industrial products usually adopt the injection molding process, and the most important thing in the injection molding process is the structure of the mold. In the production process of industrial products, when the mold is closed and injected with hot-melt plastic, air is often brought in, and the hot-melt When the shaped plastic flows in the cavity of the mold, it will squeeze the air. If the air cannot be effectively discharged, it will cause trapped air, which will affect the injection molding quality of the product.

Images