Bamboo jointed board processing method

Abstract

The invention discloses a bamboo jointed board processing method which comprises the following steps: selecting a fresh round bamboo with the water content being 45-50% as a raw material bamboo, cutting the raw material bamboo at equal lengths, processing the cut bamboos into smooth bamboo joints with cylindrical structures, longitudinally split the bamboo joints to form axial gaps along the entire length, carrying out twice alkali liquor soaking and once warm supersaturated steam for softening treatment, carrying out flat pressing to form bamboo sheets, carrying out vacuum gum dipping treatment on the bamboo sheets, carrying out head-tail staggered superimposition in a die, carrying out hot pressing after superimposition, slicing along the bamboo fiber in the longitudinal direction, carrying out transverse and vertical staggered superimposition on the sliced bamboo sheets for three layers, gluing the parts between every two adjacent layers, and feeding the gummed bamboo in forming equipment for secondary hot pressing forming to obtain a finished product. The bamboo board prepared through the processing method takes a three-layer laminating structure and improves the uniform performance after the bamboo board is formed, so that the ageing resistance of the bamboo jointed board is further improved after the bamboo jointed board is made into a bamboo product, and the service lifeof the bamboo product is prolonged after the bamboo sheet is made into the bamboo product.

Description

technical field [0001] The invention relates to the technical field of board processing, in particular to a processing method for bamboo jigsaw boards. Background technique [0002] With the continuous improvement of people's living standards, people have higher and higher requirements for the living and office environment and the comfort of decoration, their taste is also improving, and the consumption of decoration wood is also increasing. Under the environment, more and more alternative materials have emerged, and there are very rich bamboo resources in the southern region of China. Bamboo has the characteristics of slow growth rate, short period of maturity, high strength and good toughness, which makes bamboo materials widely used in people's daily life. Applications are becoming more common. [0003] At present, when making bamboo products, it is usually necessary to process the bamboo through a series of processes such as cutting, flaking, defrosting, dipping, drying...

AI Technical Summary

Problems solved by technology

[0003] At present, when making bamboo products, it is usually necessary to process the bamboo through a series of processes such as cutting, flaking, defrosting, dipping, drying, and forming, and finally shape it into bamboo boards. However, due to the growth of bamboo itself characteristics, the thickness and density of the upper and lower parts of the bamboo body are significantly different, which makes the thickness difference after unfolding and hot pressing very obvious. In order to eliminate the influence of this thickness difference, multi-layer bonding is required. A thicker bamboo board is formed. This multi-layer laminated bamboo board will be easily displaced between the layers of the bamboo board due to the loss of bamboo board glue and the external high temperature and high pressure during the drying and hot pressing process, resulting in internal Defects will be generated, which will affect the strength and structural stability of the finished bamboo panel. This decrease in strength and structural stability will make the bamboo panel prone to fracture and deformation during multi-layer cutting and peeling, which will affect the aesthetics and use of bamboo products. life

In addition, due to the differences in the thickness and density of the bamboo single sheets of the upper and lower bamboo boards, the flatness of the outer surface of the bamboo boards will also be affected after the pieces are put together, and unevenness is prone to occur. Leveling through a resin bond line or polishing repairs on the surface is required, and this secondary surface treatment step will add additional processing costs

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