Method for manufacturing a uniform-density vacuum insulated panel with high production efficiency

Abstract

A method for manufacturing a uniform-density vacuum insulated panel with a high production efficiency includes steps as follows: (1) a non-woven fabric bag of a specification and a size are made by a bag making machine, and one edge is left unsealed; (2) the non-woven fabric bag is filled with a core material and the unsealed opening is sealed; (3) the core material in the non-woven fabric bag is evenly spread in the non-woven fabric bag by a jolt flattening machine; (4) the core material is sent into a compacter by a conveyor belt, and is compacted; and (5) the core material is loaded into a gas blocking bag, and then the gas blocking bag is subjected to vacuum pumping by vacuum pumping equipment until reaching 0.02 pa, and then is sealed. The method has the advantages as follows: weighing bagging ensures the precision of product specification; the jolt equipment spreads the core material to be more evenly and flatly under the action of gravity; the step of shaping compacting is carried out after the non-woven fabric bag is filled with the core material, so that the condition that the corner formation of the core material is damaged easily when the core material is coated with the non-woven fabric bag after the step of shaping compacting is avoided, and the yield is improved; and the method is suitable for automatic production, and greatly improves the production efficiency.

Description

technical field [0001] The invention relates to a method for manufacturing a vacuum heat insulation panel. The produced vacuum heat insulation panel is mainly used for heat insulation and heat preservation of building materials, household appliances, pipelines and other equipment. Background technique [0002] The existing manufacturing process of the vacuum insulation panel is as follows: the core material is injected into a mold and pressed into a mold, wrapped with non-woven fabric, bagged and sealed, and vacuumized. This method cannot ensure the uniformity of the core material when it is pressed and formed in the mold, and the density of the pressed core material is not uniform; when the core material is wrapped with non-woven fabric, it is easy to damage the corner molding of the core material and reduce the yield ; The degree of automation is not high, more personnel are needed, and the production efficiency is lower. Contents of the invention [0003] The purpose o...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for making a vacuum insulation panel with uniform density and high production efficiency, so as to solve the problems in the prior art that the core material cannot be laid evenly when pressed in a mold, and the core material after pressing Uneven density; when the core material is wrapped with non-woven fabric, it is easy to damage the edge molding of the core material, reducing the yield; and the problem of low automation and low production efficiency

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