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Honeycomb paperboard pressing and stoving process and apparatus

A technology of honeycomb cardboard and drying device, which is applied to cardboard items, mechanical processing/deformation, etc. It can solve problems such as weak adhesion and unsatisfactory flatness, achieve good heat dissipation effect, reduce cleaning and maintenance work, and improve transmission efficiency Effect

Inactive Publication Date: 2006-03-01
ZHEJIANG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of weak bonding and unsatisfactory flatness between the paper on the honeycomb paperboard and the lower paper and the paper core in the prior art, the present invention provides a method for making the paper on the honeycomb paperboard and the lower paper and the paper core firmly bonded and has good flatness. Honeycomb paperboard pressurized drying process and its device

Method used

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  • Honeycomb paperboard pressing and stoving process and apparatus

Examples

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Effect test

Embodiment 1

[0018] A pressure drying process for honeycomb paperboard, comprising the following steps:

[0019] ①. Paste the upper paper and the lower paper on the upper surface and the lower surface of the pre-coated honeycomb paper core to form a honeycomb paperboard, and press the upper paper and the lower paper respectively when pasting;

[0020] ②. Heat and dry the honeycomb cardboard, and continue to press the upper paper and the lower paper respectively while drying.

[0021] refer to figure 1 The honeycomb paperboard pressure drying device for realizing the above-mentioned honeycomb paperboard pressure drying process is as follows: comprising a first endless pressure belt 1, a second endless pressure belt 2 and an oven 3, the first endless pressure belt 1, The second endless pressure belt 2 is all tensioned on the respective tension roller 4 and the drive roller 5 that drives it to rotate. The first endless pressure belt 1 is located above the second endless pressure belt 2 .

...

Embodiment 2

[0029] refer to figure 1 , The first endless pressure belt 1 and the second endless pressure belt 2 are both polyester fluorine belts, and are uniformly opened with small holes. The rest of the structure and implementation are the same as in Embodiment 1.

[0030] The specially treated polyester fluorine press belt, and the small holes are reasonably set on the press belt, the heat penetration and heat dissipation effect is good, and the excess glue of the paper core will not stick to it. Even if it sticks, it will fall off by itself in a short time, which greatly reduces The cleaning and maintenance work of the stencil.

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Abstract

The honeycomb paperboard pressurizing and stoving process includes the following steps: 1. adhering upper and lower facing paper layers to the upper and lower surface of the honeycomb paper core to form honeycomb paperboard and pressurizing to level; and 2. heating the honeycomb paperboard to dry while further pressurizing to level. The honeycomb paperboard pressurizing and stoving apparatus includes the first and the second ring pressurizing belts and stoves. The present invention has the beneficial effects of firm adhesion of the upper and lower facing paper layers to the honeycomb paper core, and the special treatment of the pressurizing belts with excellent heat permeating and heat dissipating effect.

Description

(1) Technical field [0001] The invention relates to a honeycomb paperboard pressure drying process and its device (2) Background technology [0002] At present, the pressurized drying and cooling devices for the production of honeycomb paperboard mostly adopt the method of conveying pressure by conveying rollers, drying by microwave or infrared rays, and dissipating heat by cloth mesh panels. The force of the honeycomb paperboard is linear contact force when the conveying roller is pressed, so it is easy to cause indentation and wrinkling of the honeycomb paperboard, and make the bonding between the face paper and the paper core weak and uneven, which affects the quality of the honeycomb paperboard; The operation of microwave equipment is complicated and microwave leakage is extremely harmful to the human body. Infrared heating temperature is uneven, power loss is large, and it is difficult to avoid the wrinkling of honeycomb paperboard caused by uneven heating during the he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31F5/00B31D5/00
Inventor 应富强李敏吕原君袁超
Owner ZHEJIANG UNIV OF TECH
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