CN201342701Y - Three-ply composite plate of flattened bamboo boards - Google Patents

Abstract

The utility model relates to a three-layer composite board of flattened bamboo boards, which belongs to the technical field of decorative boards. It is characterized in that the flattened bamboo board is composed of bamboo tubes longitudinally cut, softened and flattened, the upper and lower layers of the flattened bamboo board are bamboo green layer and bamboo yellow layer, the middle layer is bamboo flesh layer, and a middle layer is set between two flattened bamboo boards The bamboo yellow surface of the upper and lower layers of the flattened bamboo board is respectively glued and connected with the two sides of the middle layer board to form a three-layer composite board. The upper and lower surfaces of the three-layer composite board are both bamboo green surfaces. The above-mentioned three-layer composite board of flattened bamboo board adopts the flattened bamboo board with wide format and high surface hardness as the raw material, a middle board is arranged between two flattened bamboo boards, and the structure of the upper and lower flattened bamboo boards is symmetrical, so that the obtained The product quality is good, more stable and not deformed; the density and hardness of the bamboo green surface are high, and the surface of the plate is wear-resistant and has a long service life; the utilization rate of raw materials is high, which reduces the manufacturing cost.

Description

Flattened bamboo board three-layer composite board

technical field

The utility model belongs to the technical field of decorative boards, in particular to a three-layer composite board of flattened bamboo boards.

Background technique

Bamboo boards have the characteristics of fresh and natural color, flat and smooth, high strength, good toughness, and wear resistance, so they are widely used as decorative boards once they appear. To make a bamboo board, it is usually divided into multiple bamboo strips in the length direction of the bamboo tube, and most of the bamboo green and bamboo yellow should be removed, and then the split bamboo strips are processed and glued to produce bamboo boards. The problems caused by this method are: low utilization rate of raw materials, excessive use of adhesives, not only high manufacturing cost, but also poor environmental protection; the products produced are subject to changes in temperature and humidity, cracks and deformations will occur, and product quality is unstable. The existing flattened bamboo board overcomes the above-mentioned shortcomings, has the characteristics of greatly improving the utilization rate of materials, reducing the amount of adhesive used, and high surface hardness of the product, and is generally used directly as a decorative material.

Utility model content

Aiming at the above-mentioned problems existing in the prior art, the purpose of this utility model is to design and provide a technical solution for flattening a bamboo three-layer composite board. The product structure is symmetrical and reasonable, the quality is good, the utilization rate of raw materials is high, and the manufacturing cost is reduced. .

The three-layer composite board of the flattened bamboo board includes a flattened bamboo board, which is characterized in that the flattened bamboo board is formed by longitudinally cutting and softening a bamboo tube, and the upper and lower layers of the flattened bamboo board are a bamboo green layer and a bamboo yellow layer. , the middle layer is the bamboo meat layer, a middle board is set between two flattened bamboo boards, the bamboo yellow faces of the upper and lower flattened bamboo boards are respectively glued to the two sides of the middle board to form a three-layer composite board, the upper and lower sides of the three-layer composite board The surface is bamboo green surface.

The three-layer composite board of the flattened bamboo board is characterized in that the middle board is a grid structure, which is composed of a group of criss-crossed slats embedded with each other, and the bamboo yellow surface of the two flattened bamboo boards Glued to the battens.

The three-layer composite board of flattened bamboo boards is characterized in that the middle board is composed of a group of horizontally flattened bamboo boards, and the bamboo yellow surfaces of the upper and lower two flattened bamboo boards are glued to the horizontally flattened bamboo boards .

The flattened bamboo three-layer composite board is characterized in that the middle board is single-layer bamboo board, single-layer wood board, bamboo composite board, wood composite board, bamboo-wood composite board, honeycomb paper or other artificial boards.

The three-layer composite board of flattened bamboo boards is characterized in that the upper and lower layers of flattened bamboo boards are arranged in the same direction along the bamboo growth direction.

The flattened bamboo three-layer composite board is characterized in that the vertically and horizontally staggered slats intersect vertically, and the corresponding hollow grid units have a square structure.

The flattened bamboo three-layer composite board is characterized in that the slats arranged in a criss-cross pattern intersect obliquely, and the corresponding hollow grid units have a rhombus structure.

The three-layer composite board of flattened bamboo boards is characterized in that one of the green sides of adjacent horizontally flattened bamboo boards faces upwards and the other faces downwards in a staggered arrangement.

The above-mentioned flattened bamboo board three-layer composite board adopts a wide-format, high-hardness flattened bamboo board as a raw material, and a middle board is arranged between two flattened bamboo boards. The middle board can be a grid structure, or can be made of A group of horizontally flattened bamboo boards are arranged, and can also be single-layer bamboo boards, single-layer wood boards, bamboo composite boards, wood composite boards, bamboo-wood composite boards, honeycomb paper or other man-made boards, and the structure of the upper and lower flattened bamboo boards is symmetrical , so that the quality of the prepared product is good, and the use is more stable without deformation; the density and hardness of the bamboo green surface are high, and the surface of the plate is wear-resistant and has a long service life; the utilization rate of raw materials is high, and the manufacturing cost is reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the schematic structural diagram of grid-shaped middle layer plate in Fig. 1;

Fig. 3 is the structural representation of lath among Fig. 1;

Fig. 4 is the structural representation of the second embodiment of the utility model;

Fig. 5 is a structural schematic diagram of a third embodiment of the utility model;

In the figure: 1-flattened bamboo board, 2-middle layer board, 201-slat, 201a-inlay groove, 202-transversely flattened bamboo board.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings of the description:

As shown in the figure, the flattened bamboo board three-layer composite board described in the utility model adopts the flattened bamboo board 1 with a wide format and high surface hardness as a raw material. The flattened bamboo board 1 is formed by longitudinally cutting, softening and flattening the bamboo tube. The upper and lower layers of the flattened bamboo board 1 are bamboo green layer and bamboo yellow layer, and the middle layer is a bamboo flesh layer. A middle layer is arranged between two flattened bamboo boards 1 Board 2, the bamboo yellow surface of the upper and lower layers of the flattened bamboo board 1 are respectively glued and connected with the two sides of the middle layer board 2 to form a three-layer composite board, the upper and lower surfaces of the three-layer composite board are bamboo green surfaces. The middle board 2 can be a grid structure, which is composed of a group of criss-crossed slats 201 embedded with each other, and the bamboo yellow surface of the two flattened bamboo boards 1 is glued to the slats 201; the board A slot 201a is provided on the strip 201, and the criss-cross strips 201 are embedded with each other through the slot 201a. The middle board 2 can also be composed of a group of horizontally flattened bamboo boards 202 arranged at intervals. The horizontally flattened bamboo boards 202 and the flattened bamboo boards 1 are arranged alternately. 202 are glued and connected; the bamboo green faces of the adjacent horizontally flattened bamboo boards 202 face upwards and downwards, and are arranged in a staggered manner, so that the products obtained are not easily deformed. The middle board 2 can also be single-layer bamboo board, single-layer wood board, bamboo composite board, wood composite board, bamboo-wood composite board, honeycomb paper or other artificial boards. If the flattened bamboo board is formed by direct lengthening and lateral widening, or adopts braided material as the middle board of the three-layer composite board, it is also within the protection scope of the present invention.

The bamboo tube is composed of bamboo joints and bamboo walls. The density of the bamboo wall changes gradually along the bamboo green to the bamboo yellow part, and the bamboo green of the bamboo wall is denser and harder than the bamboo yellow part. The part between bamboo green and bamboo yellow is called bamboo meat. Each bamboo green and bamboo yellow part has its maximum area range. The largest area of bamboo green is on the outer surface of the bamboo wall, and the largest area of bamboo yellow is on the inner surface of the bamboo wall. The structure of the horizontally flattened bamboo board 202 is the same as that of the flattened bamboo board 1 .

The flattened bamboo board 1 described in the utility model can adopt the following method to manufacture: 1) the bamboo tube is cut longitudinally, cut into one or more pieces of bamboo, each piece of bamboo includes bamboo green, bamboo meat and bamboo yellow; Relatively parallel oblique grooves can be processed on the surface of bamboo yellow, and the oblique grooves are at an angle of 10-60 degrees to the bamboo growth direction; 2) high-temperature softening treatment of bamboo blocks, the high-temperature softening temperature is between 140-200 degrees Celsius, Preferably between 160-190 degrees Celsius; 3) The softened bamboo pieces are gradually or multi-step flattened by special equipment to obtain the flattened bamboo board 1 . The specific flattening process involving the softened bamboo block in the above-mentioned step 3) is an existing known technology, and will not be repeated here. Using the above method can greatly improve the utilization rate of bamboo raw materials. The flattened bamboo board 1 is an adhesive-free bamboo board, which not only reduces the production cost, but also is safe and environmentally friendly. The flattened bamboo board 1 can also be made by other existing methods, and its specific manufacturing method will not be repeated here.

Claims (8)

1. The flattened bamboo board three-layer composite board, including the flattened bamboo board (1), is characterized in that the flattened bamboo board (1) is formed by longitudinally cutting and softening the bamboo tube, and the upper and lower layers of the flattened bamboo board (1) It is a bamboo green layer and a bamboo yellow layer, and the middle layer is a bamboo flesh layer. A middle layer board (2) is arranged between two flattened bamboo boards (1), and the bamboo yellow surfaces of the upper and lower flattened bamboo boards (1) are respectively connected to the middle layer. The two sides of the board (2) are glued and connected to form a three-layer composite board, and the upper and lower surfaces of the three-layer composite board are bamboo green surfaces. 2. The flattened bamboo three-layer composite board according to claim 1, characterized in that the middle board (2) is a grid-like structure, and a group of criss-cross slats (201) are embedded in each other Composition, the bamboo yellow surfaces of two flattened bamboo boards (1) are glued and connected with laths (201). 3. The flattened bamboo board three-layer composite board according to claim 1, characterized in that the middle layer board (2) is composed of a group of horizontally flattened bamboo boards (202), and the upper and lower layers of flattened bamboo boards ( 1) The bamboo yellow surface is glued and connected with the horizontally flattened bamboo board (202). 4. The flattened bamboo three-layer composite board according to claim 1, characterized in that the middle layer board (2) is a single-layer bamboo board, a single-layer wood board, a bamboo composite board, a wood composite board, or a bamboo-wood composite board. board, honeycomb paper or other wood-based panels. 5. The flattened bamboo three-layer composite board according to claim 1, 2, 3 or 4, characterized in that the upper and lower layers of flattened bamboo boards (1) are arranged in the same direction along the bamboo growth direction. 6. The flattened bamboo three-layer composite board according to claim 2, characterized in that the vertically and horizontally staggered slats (201) intersect vertically, and the corresponding hollow grid units have a square structure. 7. The flattened bamboo three-layer composite board according to claim 2, characterized in that the slats (201) arranged in a criss-cross pattern intersect obliquely, and the corresponding hollow grid units have a rhombus structure. 8. The three-layer composite board of flattened bamboo boards according to claim 3, characterized in that one of the bamboo green faces of adjacent horizontally flattened bamboo boards (202) faces upwards and the other faces downwards in a staggered arrangement.

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