Novel paper pulp molding processing technology and molding die thereof

Abstract

The invention relates to a novel paper pulp molding processing technology and a molding die thereof. The technology comprises the steps of conducting beating on plant fiber slurry by a beater; diluting paper pulp; adding the paper pulp into a pulp grinder to be ground; diluting the paper pulp to have the concentration of 3% by concentration adjustment equipment; screening heavy impurities out by a high-concentration slag remover; conducting screening by a pressure sieve, and making the paper pulp enter a slurry forming tank after screening; conducting screening by a vibrating frame sieve, and making the paper pulp enter the slurry forming tank after screening; conducting secondary dilution on the slurry by the concentration adjustment equipment, controlling the concentration of the slurry within 1-1.5%, and completing slurry preparation; utilizing a vacuum die suction machine to adsorb the slurry, and conducting dehydration to form wet ground paper; adsorbing the wet ground paper onto a molding die arranged in a multi-layer and stage-division mode to be molded through different stages, and obtaining the multi-layer wet paper die; bonding and extruding the multi-layer wet paper die; heating, drying and shaping the wet paper die to form paper pulp molded products. The products produced through the adoption of the technology are higher in thickness, better in waterproof performance, and suitable for large toys, real-person models and the like.

Description

technical field [0001] The invention relates to the technical field of pulp processing, in particular to a novel pulp molding process and a forming mold thereof. Background technique [0002] The traditional processing technology is to vacuum dehydrate the pulp with low concentration and transfer it to the drying section for drying. Due to the limitation of the production process conditions, the product's overall size, thickness, water resistance and ring compressive strength are limited by the process conditions. [0003] The thickness of traditional pulp molding is limited by the processing technology, and the thickness generally does not exceed 3mm, so the application fields of pulp molding products are very limited. In order to improve the ring compressive strength and water resistance of pulp molded products and expand the application fields of pulp molded products, it is necessary to change the processing technology of pulp molded products. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] The traditional processing technology is to transfer the pulp with low concentration to the drying part after vacuum dehydration. Due to the limitation of the production process conditions, the product's external dimension, thickness, water resistance and ring compressive strength are limited by the process conditions.

[0003] The thickness of traditional pulp molding is limited by the processing technology, and the thickness generally does not exceed 3mm, so the application fields of pulp molding products are very limited

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