Electrically-heated and water-cooled foam forming upper mold

A foam forming and water cooling technology, applied in the field of foam forming molds, can solve the problems of slow cooling speed and reduce product qualification rate, and achieve the effects of fast heating speed, convenient mold design and reasonable cost control.

Active Publication Date: 2014-07-30
CHONGQING GUOHUA PACKAGING PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure is suitable for products with a relatively simple molding structure when used, but when the structure is more complex, the design of the upper mold and the lower mold will cause many problems, such as: 1. Uniformity of heating; 2. Exhaust Hole distribution; 3. The distribution of the feed inlet. If the above problems are not handled properly, the pass rate of the product will be reduced, and the cooling speed of the product will be slow after molding.

Method used

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  • Electrically-heated and water-cooled foam forming upper mold
  • Electrically-heated and water-cooled foam forming upper mold
  • Electrically-heated and water-cooled foam forming upper mold

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Such as figure 1 As shown, the electric heating and water-cooling type foam molding upper mold includes an upper mold frame 1 and a heat-conducting aluminum block 5, and an upper mold 14 is installed at the bottom of the upper mold frame 1. It is characterized in that: the upper mold frame 1 is a hollow structure, and The inside of the mold frame 1 is provided with an insulating plate 4, a heating wire 3 and a heat-conducting aluminum block 5 in sequence from top to bottom. The heating wire 3 is installed on the bottom of the insulating plate 4 through a sleeve 2 made of ceramic material, and the top of the insulating plate 4 is fixed on the upper mold frame. 1, the heat-conducting aluminum block 5 is closely attached to the inner bottom of the upper mold frame 1, the distance between the heating wire 3 and the heat-conducting aluminum block 5 is 20 mm, and the heat-conducting aluminum block 5 is provided with a cooling water channel 6 horizontally inside the cooling wat...

Embodiment 2

[0023] This embodiment is changed on the basis of the first embodiment, the distance between the heating wire 3 and the heat-conducting aluminum block 5 is changed to 30 mm; the thickness of the insulating plate 4 is changed to 10 mm. Others are the same as embodiment one.

Embodiment 3

[0025] This embodiment is changed on the basis of the first embodiment, the distance between the heating wire 3 and the heat-conducting aluminum block 5 is changed to 50 mm; the thickness of the insulating plate 4 is changed to 8 mm. Others are the same as embodiment one.

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Abstract

The invention relates to an electrically-heated and water-cooled foam forming upper mold, belonging to the technical field of foam forming molds. The upper mold comprises an upper mold frame and a heat conducting aluminum block, wherein an insulating plate, an electric heating wire and the heat conducting aluminum block are sequentially arranged in the upper mold frame from top to bottom, a cooling water passage is transversely formed in the heat conducting aluminum block, the left side of the cooling water passage is communicated with a cooling water outlet pipeline, the right side of the cooling water passage is communicated with a cooling water inlet pipeline, and a water tank, a delivery pump and a cooler are sequentially arranged between the cooling water outlet pipeline and the cooling water inlet pipeline. The upper mold is simple in structure, facilitates the design of a foam forming mold, and ensures the qualified rate of a product; under the coordination of the water tank, the delivery pump and the cooler, the cooling time after the product is formed is greatly shortened, and the production efficiency is effectively improved.

Description

technical field [0001] The invention relates to an electric heating and water cooling type foam forming upper mold, which belongs to the technical field of foam forming molds. Background technique [0002] The structure of the currently used foam molding mold mainly includes an upper mold and a lower mold, some of which are evenly equipped with heating rods on the upper mold and the lower mold respectively; some of which are only provided with heating rods on the upper mold. This structure is suitable for products with a relatively simple molding structure when used, but when the structure is more complex, the design of the upper mold and the lower mold will cause many problems, such as: 1. Uniformity of heating; 2. Exhaust Hole distribution; 3. The distribution of the feed inlet. If the above problems are not handled properly, the pass rate of the product will be reduced, and the cooling speed of the product will be slow after molding. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/58B29C33/04B29C33/02
Inventor 艾勇
Owner CHONGQING GUOHUA PACKAGING PROD
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