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Forming method of composite packaging box

A composite material and molding method technology, applied in the direction of adhesive types, adhesive additives, non-polymer adhesive additives, etc., can solve the problem that the packing box molding method cannot guarantee the airtight quality of the product at the same time, the quality of the inner and outer surfaces of the product, etc. , to achieve the effect of reducing quality risk, high mechanical performance and high fiber content

Active Publication Date: 2020-02-14
SHANXI PINGYANG IND MACHINERY
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AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the technical problem that the existing packaging box forming method cannot guarantee the airtight quality of the product and the quality of the inner and outer surfaces of the product at the same time

Method used

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Embodiment Construction

[0021] The molding method of the present invention will be described in detail below with a specific packaging box material. The female mold of the packaging box is made of basalt fiber and epoxy resin composite material, and the male mold is made of vinyl resin and basalt fiber composite material.

[0022] S1. Select the box body male mold, the box body female mold, the box lid male mold, and the box lid female mold of the hand lay-up molding method as the forming mould.

[0023] S2. The vacuum-assisted forming method is used to form the composite material in the positive mold of the box body and the positive mold of the box cover: a. On the surface of the male mold, lay 1-2 layers of basalt fiber surface mat and 1 layer of basalt fiber chopped strand mat in order, Lay 3 layers of basalt fiber uniaxial cloth and 1 layer of balsa wood on the reinforcing ribs, and fill the gaps with chopped fibers; b. After laying 1 layer of basalt fiber multi-axial cloth, seal the male mold; c....

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Abstract

The invention relates to the technical field of forming methods of packaging boxes, in particular to a forming method of a composite packaging box. By the adoption of the forming method of the composite packaging box, the technical problems that an existing forming method of packaging boxes cannot guarantee the airtightness quality and inner and outer surface quality of products at the same time is solved. A male die is formed through a dry method, a female die is formed through a wet method, and the male and the female die are assembled together on a bonding interface by means of a binding agent prepared from 100 parts of liquid epoxy resin, 12-21 parts of a curing agent, 30-40 parts of a polyamide resin, 15-18 parts of gaseous silicon dioxide, 10-15 parts of talcum powder, 2-3 parts of DMP-30, and 2-3 parts of a KH560 silane coupling agent.

Description

technical field [0001] The invention relates to the technical field of packaging box molding methods, in particular to a molding method for composite material packaging boxes. Background technique [0002] Composite packaging box is made of fiber cloth and resin, which has the advantages of light weight, high specific strength, good fatigue resistance, and good heat insulation effect. It is mainly used for product packaging, transportation and storage. There are two methods for making the existing packaging boxes: one is the relatively mature hand lay-up process (ie wet process); the other is the vacuum-assisted forming process (ie dry process). The wet method is greatly affected by the technical level and sense of responsibility of the operator, the resin content is uneven, defects such as bubbles are prone to occur inside the product, the pass rate of the air tightness test is low, the repair cost is high, and the quality reliability after repair is low; the dry method res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/36B29C70/54C09J163/00C09J177/00C09J11/04
CPCB29C70/36B29C70/54B29L2031/7162C09J11/04C09J163/00C08L77/00C08K3/36C08K3/34
Inventor 倪伟杨荣国张凯郭小玲任静茹周康
Owner SHANXI PINGYANG IND MACHINERY
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