Blow molding and foam combining technique, and its product

A technology for finished products and foams, applied in the field of blow molding and foam, can solve the problems of insufficient mechanical strength, insufficient toughness, easy deformation, etc., and achieve the effects of saving energy, saving foaming molds, and reducing production costs

Inactive Publication Date: 2009-07-01
GUANGDONG LESHAN INTELLIGENT EQUIP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing blow molding products and foam products are independently processed and formed by two sets of molds. The blow molding products have low production cost, good leak-proof effect, and sufficient toughness. Insufficient, easy to deform under pressure, and foam products have the advantages of good thermal insulation effect, high mechanical strength, and low cost, but due to their insufficient toughness, they will disintegrate after being pressed; therefore, people have been eager to combine blow molding technology with foam technology. Made of plastic products with high mechanical strength, sufficient toughness and good heat preservation effect

Method used

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  • Blow molding and foam combining technique, and its product
  • Blow molding and foam combining technique, and its product
  • Blow molding and foam combining technique, and its product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as figure 1 Shown is a method of blow molding and foaming. During the process of blowing plastic hollow products by a blow molding machine, foam is injected into the cavity from the blowing port when the mold is not opened after the plastic hollow product is hot-blown. The foam utilizes the waste heat of the plastic Foam molding, a method of making a finished product by opening a mold after setting the shape.

[0018] The process of making finished products by this method is embryo making 1 mold closing 2 air blowing 3 deflation and foam injection 5 foaming and setting 6 mold opening 7 finished product 8 embryo making 1 When the embryo is made, the temperature of the embryo is controlled between 120 degrees and 190 degrees. Mold closing 2 again, successively through air blowing 3 and deflation 4, then inject foam from air blowing port 9, when injecting foam, treat the plastic in the mold to cool down naturally or artificially control it between 80 degrees to 120 de...

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Abstract

The invention discloses a method of blow molding and foaming. The technology is that during the process of blowing plastic hollow products by a bottle blowing machine, when the mold of the plastic hollow product is not opened after hot blow molding, the foam is injected into the cavity from the blowing port, and the foam A method of making finished products by using waste heat of plastics for foaming and molding, and opening molds after finalizing the shape. Cavities are formed between the layers, and the foam is placed in said cavities. The method of the invention has the effects of simple process and low cost, and the blow molding and foaming processes are completed by the same set of moulds, and the finished product has a foam insulation layer.

Description

technical field [0001] The present invention relates to a method of blow molding and foaming and its finished product. Background technique [0002] The existing blow molding products and foam products are independently processed and formed by two sets of molds. The blow molding products have low production cost, good leak-proof effect, and sufficient toughness. Insufficient, easy to deform under pressure, and foam products have the advantages of good thermal insulation effect, high mechanical strength, and low cost, but due to their insufficient toughness, they will disintegrate after being pressed; therefore, people have been eager to combine blow molding technology with foam technology. It is made into a plastic product with high mechanical strength, sufficient toughness and good heat preservation effect. Contents of the invention [0003] The object of the present invention is to solve the above defects and provide a combination of blow molding technology and foam tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/18B29K105/04
Inventor 郭锡南
Owner GUANGDONG LESHAN INTELLIGENT EQUIP CORP LTD
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