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

A technology of electric heating wire and electric heating wire, which is applied in applications, household components, household appliances, etc., can solve the problems of reducing the qualified rate of products, and achieve the effect of convenient mold design, convenient demoulding, and fast heating speed

Inactive Publication Date: 2014-12-17
重庆开确科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0018] Such as figure 1 , figure 2 , image 3 As shown, the heating wire type belt cooling upper mold for fan blade injection includes an upper mold body 2, the lower left part of the upper mold body 2 is horizontally provided with an injection channel 11, and a piece for upper mold body 2 is arranged on the upper part of the upper mold body 2. The heating aluminum block 4 heated by the main body 2 has a groove downward on the upper surface of the upper mold body 2, and the lower surface of the heating aluminum block 4 extends downward with a protrusion matching the groove. A heating chamber 5 is provided, and a mounting plate 7 is horizontally arranged in the heating chamber 5. The mounting plate 7 is matched with the heating aluminum block 4 in a drawer type, and an electric heating wire 8 is arranged at the bottom of the mounting plate 7. The electric heating wire 8 is installed on the bottom of the mounting plate 7 through the ceramic tube 6, the electric heating wire 8...

Embodiment 2

[0022] This embodiment is changed on the basis of Embodiment 1, the left exposed end of the connecting rod 3 is changed to 400 mm; the diameter of the connecting rod 3 is changed to 40 mm; the distance between the electric heating rod 1 and the injection channel 11 The distance becomes 15mm. Others are the same as embodiment one.

Embodiment 3

[0024] This embodiment is changed on the basis of Embodiment 1, the left exposed end of the connecting rod 3 is changed to 500 mm; the diameter of the connecting rod 3 is changed to 50 mm; the distance between the electric heating rod 1 and the injection channel 11 The distance becomes 20mm. Others are the same as embodiment one.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/73B29C45/26B29L31/08
CPCB29C45/73B29C45/2602B29L2031/082
Inventor 刘绍明
Owner 重庆开确科技有限公司
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