Electric heating rod type with cooling injection molding upper mold for cpu fan blade

Abstract

The invention relates to an electrical heating bar type cooling injection molding upper mould for a CPU fan blade, belonging to the technical field of injection moulds. The electrical heating bar type cooling injection molding upper mould comprises an upper mould body, wherein an injection molding channel is horizontally arranged on the left lower part of the upper mould body; an exhaustion channel is horizontally arranged on the right lower part of the upper mould body; a heating aluminum block for heating the upper mould body is arranged on the upper part of the upper mould body; a groove is formed downwards in the upper surface of the upper mould body; a lug matched with the groove extends downwards from the lower surface of the heating aluminum block; a heating cavity is horizontally formed in the middle of the heating aluminum block; electrical heating bars are mounted at the left end and the right end of the heating cavity; a cooling water cavity is horizontally formed in the heating aluminum block positioned below the heating cavity; a first lug boss with an annular structure is arranged on the side wall inside the injection molding channel; a second lug boss with an annular structure is arranged on the side wall inside the exhaustion channel. The electrical heating bar type cooling injection molding upper mould is high in heat speed, high in production efficiency and convenient to mount; moreover, the pass percentage of the product is guaranteed.

Description

technical field [0001] The invention relates to an electric heating rod type belt cooling injection molding upper mold used for CPU 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 an electric heating rod type cooling injection molding upper mold for CPU fan blades, which has simple structure, convenient operation, ...

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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