CN105799006A

CN105799006A - Bamboo board structure

Info

Publication number: CN105799006A
Application number: CN201510692117.5A
Authority: CN
Inventors: 李永春
Original assignee: FUJIAN MING JIANG BAMBOO CRAFT TECHNICAL Co Ltd
Current assignee: FUJIAN MING JIANG BAMBOO CRAFT TECHNICAL Co Ltd
Priority date: 2015-01-17
Filing date: 2015-10-23
Publication date: 2016-07-27

Abstract

The invention provides a bamboo board structure. The bamboo board structure at least is provided with a bamboo veneer located at the upper layer and a bamboo veneer located at the lower layer, each bamboo veneer is composed of rectangular bamboo sheets, the longer sides of every two adjacent bamboo sheets are bonded, and the bamboo sheets of the bamboo veneer at the upper layer and the bamboo sheets of the bamboo veneer at the lower layer are parallel. The bamboo board structure is characterized in that a wood veneer serving as a middle layer is arranged between the bamboo veneer at the upper layer and the bamboo veneer at the lower layer, the included angle between more than 50% of horizontal lines of the wood veneer and the longer sides of the bamboo sheets of the bamboo veneers is greater than 45 degrees, the upper surface of the wood veneer is bonded to the lower surface of the bamboo veneer at the upper layer, and the lower surface of the wood veneer is bonded to the upper surface of the bamboo veneer at the lower layer. According to the bamboo board structure, the wood veneer with the natural horizontal lines is arranged between the two bamboo veneers, the horizontal lines of the wood veneer and the bamboo sheets of the bamboo veneers intersect, and therefore stress reaction of the bamboo board can be reduced, the produced bamboo board hardly become deformed or cracked, and the production cost can be lowered.

Description

A kind of bamboo board structure

Technical field

The invention belongs to a kind of sheet material, particularly relate to the sheet material that a kind of bamboo wood material is made.

Background technology

Bamboo board, as a kind of emerging natural environmental-protective material, can be widely used for bamboo furniture manufacturing industry and new indoor furnishing fields.The rift grain stretching resistance of general bamboo wood and comprcssive strength are all significantly larger than general timber, and bamboo board is compared with the solid wood board of equal price, and its stretching resistance and comprcssive strength performance are particularly splendid, and, the sliding sense in surface is softer comfortable.Bamboo wood has the characteristic that heat absorption speed is fast and exotherm rate is also fast, so, its temperature tends to vary with environment and changes rapidly.At torridity summer, the bamboo flooring made of bamboo board allows people feel nice and cool；At Cold Winter, bamboo flooring is rapidly heated with heating installation.

The production method of current mainboard material, is usually by some bamboo chips a piece of Bamboo veneer of bonding one-tenth, and some layers of Bamboo veneer arrange from top to bottom after being mutually bonded and are pressed into bamboo board.

The bamboo board of this structure has the disadvantage that:

1: if adopting multilamellar concora crush bamboo clappers structure, owing to the stress direction of bamboo chip is consistent, of a specified duration easily produces cracking and problem on deformation.

2: if in order to solve cracking that stress causes and problem on deformation adopts and adds full wafer in the middle of upper and lower two-layer bamboo board by the bonding Bamboo veneer of bamboo chip as the structure of middle transverse slat, causing that again thickness is too thick, and cost increases problem.

Summary of the invention

The present invention provides a kind of bamboo board structure, its objective is to solve the shortcoming that prior art exists, and makes bamboo board performance in overcoming deformation and cracking better, and thickness is thinner, and weight is lighter, lower in cost.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of bamboo board structure, at least there is a Bamboo veneer being positioned at upper strata and a Bamboo veneer being positioned at lower floor, Bamboo veneer is to be made up of rectangular bamboo chip, the long limit of adjacent bamboo chip is mutually bonded, the bamboo chip of the Bamboo veneer on upper strata is parallel with the bamboo chip of the Bamboo veneer of lower floor, it is characterized in that: between the Bamboo veneer and the Bamboo veneer of lower floor on upper strata, there is the veneer as intermediate layer, the angle that the long limit of the bamboo chip of the veneer band line more than 50% and Bamboo veneer is constituted is more than 45 degree, the lower surface bonds of the upper surface of veneer and upper strata Bamboo veneer, the lower surface of veneer is bonding with the upper surface of lower floor's Bamboo veneer.

The invention have benefit that:

Adding natural band veneer between the present invention every monolayer Bamboo veneer, the bamboo cane producing veneer band line and Bamboo veneer forms the effect intermeshed, and reduces stress response between bamboo board, makes the more difficult deformation of bamboo board and the cracking of production.Production cost can be made to reduce simultaneously.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is present configuration three-dimensional exploded view；

Fig. 2 is present configuration figure.

Detailed description of the invention

Veneer is to utilize natural timber, such as leaf wood, Quercus acutissima Carr. etc., through the lamellar material that the technological process of the log → block → side of cuing open → softening (decatize or decocting in water) → slicing → drying (or not drying) → shearing obtains, veneer has band line, and the direction of band line determines the stress direction of veneer.

As it is shown in figure 1, processing technique of the present invention is the veneer 2 buying returned, it is rolled into tubular, is cut into corresponding length according to the strip width of processing.Upper strata Bamboo veneer 1 is to be made up of some rectangular bamboo chips 11, and the long limit of adjacent bamboo chip 11 is mutually bonded, and lower floor's Bamboo veneer 3 is to be made up of some rectangular bamboo chips 31, and the long limit of adjacent bamboo chip 31 is mutually bonded.Placing upper strata Bamboo veneer 1 makes bamboo chip 11 parallel with bamboo chip 31 with lower floor Bamboo veneer 3.To put one layer of veneer 2 in the middle of upper and lower two-layer Bamboo veneer 1,3, the placing direction of veneer 2 makes angle that the long limit of veneer band line 21 more than 50% and the bamboo chip 11 of upper strata Bamboo veneer 1 constitutes more than 45 degree (namely the angle of the veneer band line 21 more than 50% and the long limit composition of the bamboo chip 31 of lower floor's Bamboo veneer 3 is more than 45 degree).

The angle that the long limit of the bamboo chip of the what is called veneer band line more than 50% and Bamboo veneer is constituted refers to more than 45 degree: the long limit of the band line of veneer and bamboo chip constitutes angle, and this angle is the angle more than 45 degree and is absent from acute angle, so, the bamboo cane of veneer band line and Bamboo veneer forms the effect intermeshed, when bamboo board is under pressure, the stress that bamboo chip produces is different with the stress direction that veneer produces, thus avoiding producing cracking and problem on deformation.Owing to veneer band line is naturally occurring, the bearing of trend of major part veneer band line is substantially uniform but is not identical, but there is part veneer band line to be directed towards other directions, therefore, as long as the angle that the long limit of the bamboo chip of the veneer band line more than 50% and Bamboo veneer is constituted just can reach the object of the invention more than 45 degree.

At the lower surface of the Bamboo veneer 1 on upper strata, the upper surface of lower floor's Bamboo veneer 3, the double-faced uniform gluing of veneer 2, it is hot pressed into transverse slat in double-deck veneer through hot press.

Eventually form transverse slat in the double-deck veneer shown in Fig. 2, its upper and lower two-layer is Bamboo veneer, upper strata Bamboo veneer 1 is to be made up of some rectangular bamboo chips 11, the long limit of adjacent bamboo chip 11 is mutually bonded, lower floor's Bamboo veneer 3 is to be made up of some rectangular bamboo chips 31, and the long limit of adjacent bamboo chip 31 is mutually bonded.Intermediate layer is veneer 2, the angle that the long limit of veneer band line more than 50% 21 and the bamboo chip 11 of upper strata Bamboo veneer 1 is constituted is more than 45 degree (namely the angle of the veneer band line 21 more than 50% and the long limit composition of the bamboo chip 31 of lower floor's Bamboo veneer 3 is more than 45 degree), the lower surface bonds of the upper surface of veneer 2 and upper strata Bamboo veneer 1, the lower surface of veneer 2 is bonding with the upper surface of lower floor Bamboo veneer 3.

When utilizing monolayer Bamboo veneer to be pressed into multi-layer bamboo sheet material again, natural band veneer is added between every monolayer Bamboo veneer, due to veneer band towards trend major part be consistent, namely what the band line of veneer in general extended in one direction, as long as the long limit of the bamboo chip of the veneer band line more than 50% and Bamboo veneer forms more than the angle of 45 degree just can produce the effect that the bamboo cane formation of veneer band line and Bamboo veneer intermeshes, reduce stress response between bamboo board, make the more difficult deformation of bamboo board and the cracking of production.Simultaneously as natural veneer thickness just 0.5mm, utilize the middle transverse slat just 8.5mm that the thinnest 4mm thickness monolayer bamboo board is formed after carrying out double-deck multiple pressure, and to reach same sheet material effect, the middle transverse slat thickness formed after three layers is pressed again with the thinnest 4mm thickness monolayer bamboo board is 12mm, so that production cost reduces.

Can also adopting polylith Bamboo veneer and polylith veneer, Bamboo veneer and veneer are placed in interval, make the long side direction of veneer band and Bamboo veneer be crisscross arranged, and compacting after bonding, thus being processed into transverse slat in the veneer of multilamellar different-thickness.

Claims

1. a bamboo board structure, at least there is a Bamboo veneer being positioned at upper strata and a Bamboo veneer being positioned at lower floor, Bamboo veneer is to be made up of rectangular bamboo chip, the long limit of adjacent bamboo chip is mutually bonded, the bamboo chip of the Bamboo veneer on upper strata is parallel with the bamboo chip of the Bamboo veneer of lower floor, it is characterized in that: between the Bamboo veneer and the Bamboo veneer of lower floor on upper strata, there is the veneer as intermediate layer, the angle that the long limit of the bamboo chip of the veneer band line more than 50% and Bamboo veneer is constituted is more than 45 degree, the lower surface bonds of the upper surface of veneer and upper strata Bamboo veneer, the lower surface of veneer is bonding with the upper surface of lower floor's Bamboo veneer.