CN2270614Y - Bamboo and wood composite large width artificial plywood - Google Patents

Abstract

The utility model designs a bamboo and wood composite large width artificial plywood which is compounded by fully making use of good mechanical property of a bamboo, the superiority of not easy to rot and degenerate, and rich secondary timber resource. The plywood is characterized in that bamboo sheets are used as a material of an upper and a lower surfaces, an oblong batten material is used as a core board material, and the bamboo and wood composite large width artificial plywood is shaped through the gluing of the phenolic resin glue. The longitudinal processing is in a dovetail groove structure, and a lateral direction can be spliced to the specification with a big end panel.

Description

The compound large format TPR plywood of bamboo wood

The utility model belongs to the artificial compound artificial board with bamboo and wood manufacturing technology field in the bamboo and wood products.

The bamboo timber resource utilization of China has been broken the direct utilization of round bamboo and has been developed into the compound utilization of deep processing in recent ten years.Only bamboo plywood just has laminated plywood at present, bamboo mat plywood, bamboo plywood, bamboo plywoods etc. are multiple, add summer sleeping bamboo mat, bamboo chopsticks, bamboo parquet floors etc. are various to be existing several hundred families of multiple processing enterprise of raw material with the bamboo wood, but since these enterprises the utilization rate of bamboo wood is generally lower in process of production, mostly between 20%-40%, cause a large amount of raw-material wastes, again because the bamboo resource majority of China is a self-sow, tame few, this has just limited the bamboo resource recoverable amount of China, though the total coverage rate of the timber resources of China is not high on the other hand, bigbore good material is few, but remaining some log resource is also abundanter, and utilizes situation few at present.

The purpose of this utility model then is the problem at above-mentioned existence, and it is good to have designed a kind of physical and mechanical property that makes full use of bamboo wood, the compound large format TPR plywood of bamboo wood that rotten advantage not apt to rot and abundant inferior timber resources are composited.

Technical solution of the present utility model:

The compound large format TPR plywood of a kind of bamboo wood is characterized in that with the bamboo chip being the upper and lower surface material, is core material with rectangle batten material, by the phenolic resin glue glue molding; It vertically is processed as oat tail groove structure, laterally can be spliced into the large format specification.

Advantage of the present utility model:

The utility model surface material adopts the mao bamboon material, bamboo wood physical strength height own, hardness are big, the advantage of good springiness thereby kept, simultaneously upper and lower surface adopts long bamboo chip (the longest can to 5-6 rice), can not splice at length direction like this and can obtain the finished product product of large format, the surface bamboo chip adopts trapezoidal shape can improve the utilization rate 15% of bamboo wood, thereby lays a good foundation for reducing cost.

The utility model central layer adopts wood materials, make full use of the inferior timber resources of China's abundant on the one hand, reduced manufacturing cost simultaneously, strengthened the competitiveness of product degree, also overcome the defective of former bamboo plywood easy deformation wing song in addition, thereby the enhancing surface quality of products improves users to trust.

The utility model changes present height step and is spliced into the oat tail groove structure form when the combination seam, has overcome the serious quality problems of the height step difference of height 4mm of place.

Fig. 1 is the utility model structural representation.

Below in conjunction with accompanying drawing the utility model is further described:

Upper and lower surface bamboo chip 1 usefulness mao bamboon processing growth 5000mm, wide 150mm, the trapezoidal bamboo chip of thick 5mm is for having several staggered cracks above the flatness that increases bamboo chip, this bamboo chip adopts the gluing and the drying of phenolic resin glue through the dry setting of planing operation to cemented surface.

Sandwich layer is rectangular batten material 2, and long is 1000mm, and wide is 50mm, and thick is 10mm, through the dry setting of planing operation, and adopts phenolic resin glue gluing and drying.

Suitably adjust the slab (according to a certain percentage) of each layer glued board according to the thickness of shaped article, with the bamboo chip is panel, batten is that central layer is through behind the assembly, closely laterally add thrust between each layer, eliminating the lateral clearance between each layer raw material, put before this and to carry out the hot-forming compound large format TPR plywood of bamboo wood that promptly obtains as shown in the figure.

Its typical technology parameter is as follows:

Product length * wide * thick=5000 * 1000 * (15～28) mm ³

Density: 0.78～0.92

Moisture content: 12%

MOR 〉=100MPa

Bonding strength 〉=3.0

Impact strength 〉=11.8.

Claims (3)

1, the compound large format TPR plywood of a kind of bamboo wood is characterized in that with the bamboo chip being the upper and lower surface material, is core material with rectangle batten material, by the phenolic resin glue glue molding.

2, the compound large format TPR plywood of bamboo wood according to claim 1 is characterized in that the upper and lower surface bamboo chip adopts trapezoidal bamboo chip.

3, the compound large format TPR plywood of bamboo wood according to claim 1 is characterized in that glued board vertically is processed as oat tail groove structure, and it laterally can be spliced into the large format specification.

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