Hot runner mold

Abstract

The invention discloses a hot runner mold which comprises a hot runner, a heating part, an upper mold plate assembly and a lower mold plate assembly, the upper mold plate assembly comprises an upper mold plate and an upper mold core, the lower mold plate assembly comprises a lower mold plate and a lower mold core, and when the upper mold plate and the lower mold plate are buckled together, a discharging opening in the hot runner communicates with an inner cavity formed between the upper mold core and the lower mold core. According to the hot runner mold, heat generated by the heating part on the hot runner can guarantee that plastic in the hot runner is kept in a molten state, the discharging opening in the hot runner directly communicates with the product forming inner cavity between theupper mold core and the lower mold core, it is guaranteed that the plastic in the whole runner is kept in the molten state, and therefore the injection molding quality can be improved; and the surfacebeautiful degree of injection molding products is better, the hot runner is not open, so that the phenomena of wire drawing and leakage can be avoided, the surface quality of the injection molding products is improved, manual post-treatment is not needed, the structure is simple, and the production cost can be effectively reduced.

Description

technical field [0001] The invention relates to a mold, in particular to a hot runner mold. Background technique [0002] In the market, some injection molds do not use a hot runner system. This method of injection molding will cause waste of materials due to the easy cooling of the material in the runner, which increases production costs. However, the hot runner injection molds used in the market are usually open. Although the hot runner and the open hot runner have a simple structure, they are prone to wire drawing and leakage, and the surface quality of the injection molded workpiece is poor, which is easy to cause waste of materials and increase production costs. Contents of the invention [0003] The purpose of the present invention is to provide a hot runner mold. [0004] According to one aspect of the present invention, a hot runner mold is provided, including a hot runner, a heating part, an upper template assembly and a lower template assembly, the heating part ...

AI Technical Summary

Problems solved by technology

[0002] In the market, some injection molds do not use a hot runner system. This method of injection molding will cause waste of materials due to the easy cooling of the material in the runner, which increases production costs. However, the hot runner injection molds used in the market are usually open. Hot runner, although the structure of the open hot runner is simple, it is prone to wire drawing and leakage, and the surface quality of the injection molded workpiece is poor, which is easy to cause waste of materials and increase production costs

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