Manufacturing method of multi-layer corrugated board

Abstract

The invention belongs to the technical field of board processing, and particularly relates to a manufacturing method of a multilayer corrugated board. The manufacturing method comprises the followingsteps: Step 1, preparing paper pulp: crushing, washing and cooking plant fiber raw materials to obtain paper pulp in a semi-fluid state; Step 2, preparing a core plate: pressing the paper pulp into awavy core plate shape, and cooling to obtain a solid wavy core plate; Step 3, preparing a panel: pressing the paper pulp into a panel shape, and cooling to obtain solid panels; and Step 4, bonding andforming: bonding the solid panels to the two sides of the solid core board to obtain a multi-layer corrugated board, wherein the step 4 is completed through cooperation of a multi-layer corrugated board manufacturing device. In the process of bonding the panels to the two sides of the core board, the core board is prevented from being bent, and the flatness of the multi-layer corrugated board isguaranteed; and the thickness uniformity of an adhesive layer is ensured, and the flatness of the multi-layer corrugated board is further ensured.

Description

technical field [0001] The invention belongs to the technical field of corrugated cardboard processing, and in particular relates to a method for manufacturing multilayer corrugated cardboard. Background technique [0002] Multi-layer corrugated cardboard is a multi-layer bonded body, which consists of a corrugated core board and a face plate. Multi-layer corrugated cardboard has the advantages of low cost, light weight, easy processing, excellent printing adaptability, convenient storage and transportation, etc., can withstand collisions and falls during transportation, and has high mechanical strength, so multi-layer corrugated paper is widely used. It is used in the packaging of food and digital products. When making multi-layer corrugated cardboard, it is necessary to prepare pulp first, then press the pulp into a corrugated core board and a flat face plate, and finally paste the core board and face plate together at intervals. At present, the following problems exist ...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for making multi-layer corrugated cardboard, aiming to solve the following problems in the current production process of multi-layer corrugated cardboard: (1) It is difficult to stabilize the core board during the process of pasting the panels to both sides of the core board Clamping, the core board is prone to bending, which will adversely affect the flatness of the formed multi-layer corrugated cardboard; (2) In the process of pasting the panels to both sides of the core board, it is necessary to cover each surface of the core board with glue in strips. In the raised position, it is difficult to ensure the same amount of glue each time when glueing, which may easily cause uneven thickness of the glue layer, which will also adversely affect the flatness of the formed multi-layer corrugated cardboard

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