Structural finger-jointed sheet material and manufacturing process

Abstract

The invention relates to a structural finger-jointed sheet material and a manufacturing process. The structural finger-jointed sheet material comprises at least two finger-jointed battens serving as the main bodies. The two finger-jointed battens are spliced by a bamboo splicing strip or a plastic splicing strip to form a flat sheet material. At least two run-through insertion grooves which correspond to each other up and down and run through both sides along the direction vertical with the bamboo splicing strip or the plastic splicing strip are milled on the upper and lower surfaces of the flat sheet material respectively. Bamboo insertion strips or plastic insertion strips, which are parallel and lever with the surface of the flat sheet material, are inserted in the run-through insertion grooves. The manufacturing process is that: the finger-jointed battens used as the main bodies are separated by bamboo materials or plastic materials and then are spliced into the sheet material of required specifications by using a finger-jointed splicing board process and after splicing is completed, the width direction of the sheet material is milled with the corresponding grooves up and down and the grooves run through the sheet width; and after the process is completed, the bamboo materials or the plastic materials are coated with glue, then are inserted into the grooves, are subjected to heat pressing by using a hot press to complete solidification, and then reach the required thickness by using a contact calibrating machine to complete producing the finger-jointed sheet material. The structural finger-jointed sheet material has the characteristics of simple production process, low deformation coefficient, elasticity and strength increase, low cost, simple structure, convenient and reliable use, capacity of industrial scale production and the like.

Description

technical field [0001] The invention relates to a finger-jointed board composed of two or more materials and a manufacturing process, which belongs to a composite board and a manufacturing method. Background technique [0002] It has been 30 years since finger-jointed boards were introduced into our country from abroad. This kind of finger-joined boards is a kind of wood products that can save resources due to the use of finger-joint technology, which improves the utilization rate of wood. However, since the jigsaw panel of finger-jointed panels is a longitudinal strip structure, the static bending strength and elastic modulus in the width direction of the panel are relatively low. In the case of no frame structure and the composite veneer cannot be used alone as a base material, especially It is used as floor substrate, furniture door panel, etc. [0003] In order to solve the above-mentioned deficiencies, people have to design to increase the square material frame or comp...

AI Technical Summary

Problems solved by technology

However, since the jigsaw panel of finger-jointed panels is a longitudinal strip structure, the static bending strength and elastic modulus in the width direction of the panel are relatively low. In the case of no frame structure and the composite veneer cannot be used alone as a base material, especially It is used as floor substrate, furniture door panel, etc.

[0003] In order to solve the above-mentioned deficiencies, people have to design to increase the square material frame or compound a layer of veneer on the upper and lower sides of the board to form a whole with the finger-jointed board to increase its strength to meet the needs, but this kind of production process is more complicated. Increased product cost

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