Electric heating wire type upper injection mold with cooling for injection molding of fan blades

Abstract

The invention relates to an electric heating wire type upper injection mold with cooling for injection molding of fan blades, and belongs to the technical field of injection molds. The electric heating wire type upper injection mold comprises an upper mold main body, wherein an injection molding channel is horizontally formed in the left lower part of the upper mold main body; a heating aluminum block for heating the upper mold main body is arranged at the upper part of the upper mold main body; a groove is downwards formed in the upper surface of the upper mold main body; a convex block fitting the groove downwards extends from the lower surface of the heating aluminum block; a heating cavity is transversely formed in the middle of the heating aluminum block; a mounting plate is transversely arranged in the heating cavity; an electric heating wire is arranged at the bottom of the mounting plate; a cooling water cavity is transversely formed in the heating aluminum block below the heating cavity; a boss with an annular structure is arranged on the inner side wall of the injection molding channel; and an electric heating bar penetrates in the upper mold main body above the injection molding channel. The electric heating wire type upper injection mold has the advantages of simple structure, uniform heating of the upper mold main body, quick heating speed, high production efficiency, convenience for mounting and guarantee of product pass percent.

Description

technical field [0001] The invention relates to an electric heating wire type belt-cooled injection molding upper mold for injection molding of fan blades, and belongs to the technical field of injection molds. Background technique [0002] At present, in the production of fan blades such as CPUs, the injection molding method is commonly used, and the production efficiency is fast. If the molds usually used are in mass production, their structures are more complicated. When the structure is more complicated, it will bring many problems in the design, such as : 1. The uniformity of heating; 2. The distribution of vent holes; 3. The distribution of feed ports. If the above problems are not handled properly, the qualified rate of the product will be reduced. Contents of the invention [0003] In view of the above problems, the present invention provides a heating wire type upper mold with cooling for fan blade injection molding, which has a simple structure, convenient operat...

AI Technical Summary

Problems solved by technology

[0002] At present, in the production of fan blades such as CPUs, the injection molding method is commonly used, and the production efficiency is fast. If the molds usually used are in mass production, their structures are more complicated. When the structure is more complicated, it will bring many problems in the design, such as : 1. The uniformity of heating; 2. The distribution of vent holes; 3. The distribution of feed ports. If the above problems are not handled properly, the qualified rate of the product will be reduced.

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