CN201769250U - Novel laminated wood - Google Patents

Abstract

The utility model relates to a new type of integrated material, which comprises a fir core board layer in the center and two poplar veneer layers respectively bonded to the upper and lower sides of the fir core board layer; Two layers of glulam on the other side of the poplar veneer layer; the directions of the wood grains of the two adjacent layers are perpendicular to each other. This new glued material has good stability, low cost, and environmental protection, and can be widely used in the preparation of interior decoration such as furniture, floors, facades, and ceilings.

Description

A new type of integrated material

technical field

The utility model relates to a composite material, in particular to a novel composite material suitable for furniture and interior decoration, which belongs to the wood processing industry. the

Background technique

Glulam, also known as finger-jointed lumber or laminated lumber, is a material formed by gluing boards and small squares whose fiber directions are basically parallel in the length, width and thickness directions. The existing glulam is mainly single-layer structure, and the requirements for the selected raw materials are very high, and the general small-diameter and short materials cannot meet its requirements; moreover, when the moisture content of the board changes, it is easy to warp and crack, resulting in material failure. Low utilization rate, material waste and so on. the

CN201133061 (2008-10-15) discloses a glulam solid wood floor (see Figure 2), the center is provided with a solid wood strip layer (6), and the two sides of the solid wood strip layer in the center are bonded with a layer Strings are solid wood layers (5), (7), respectively bonded with one deck diameter solid wood layers (4), (8) on the surface of strings solid wood layers. The glulam of this utility model is composed of single-layer solid wood boards with different wood grain directions through adhesive crimping, which cannot well solve the problem of floor stability. the

Contents of the invention

The purpose of this utility model is to solve the above-mentioned technical problems by providing a kind of material feeling, light texture and good nail-holding strength of the natural wood of the laminated lumber, and can completely solve the problem of warping and cracking of the board, and the raw material requirements A new type of glulam with low cost and low cost. the

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a new type of integrated timber, including a fir core board layer in the center and two layers of poplar wood bonded on the upper and lower sides of the fir core board layer respectively a veneer layer; and two laminated wood layers respectively bonded on the other side of the two poplar veneer layers; the directions of the wood grains of the two adjacent ply layers are perpendicular to each other. the

As a preference of the above-mentioned solution of the present invention, the glulam layer is a glulam board obtained by laminating the single-layer glulam obtained in the prior art with an adhesive, and then sliced the glulam board. layer. the

As a preference of the above solution of the present invention, the poplar veneer layer is a poplar veneer layer obtained by rotary cutting poplar according to the prior art. the

The fir core material layer is a fir core board layer formed by finger-jointing several fir strips. the

The utility model selects poplar and Chinese fir for gluing, which not only has low raw material cost, but also avoids the use of formaldehyde glue, and meets people's environmental protection requirements. The adhesive used for gluing between the fir core board layer and the poplar veneer layer of the present utility model is urea-formaldehyde resin glue, and the adhesive used for gluing between the poplar veneer layer and the laminated wood layer is a combination of urea-formaldehyde resin and polyvinyl acetate emulsion. Mix glue. In order to reduce production costs, all adhesives use flour as filler to increase the viscosity of the glue. the

As a preferred technical solution, the fir core layer thickness is 10 mm to 16 mm, the poplar veneer layer thickness is 0.6 mm to 1.5 mm, and the laminated material layer thickness is 0.1 mm to 1 mm. the

The directions of the wood textures of the two adjacent board layers of the utility model are perpendicular to each other, which helps to release the stress between the wood layers, can well solve the problems of deformation, warping and cracking of the thick veneer, and can reduce the follow-up process The loss caused by the cracking of the veneer in the middle, thus improving the utilization rate of wood. the

The glulam of the utility model uses a combination of glulam board layers, poplar veneer layers and fir core material layers. Compared with single-layer boards of the same thickness, the combination density is low, the texture is light, and the material sense of the natural wood of the glulam is retained. . the

The surface layer and the bottom layer of the glulam of the utility model are glulam board layers, which are convenient for gluing and coloring and are not easily deformed. The plywood poplar veneer layer of the present invention adopts the method of rotary cutting, which reduces the loss of sawing roads, thereby improving the utilization rate of wood. the

To sum up, the utility model has the following beneficial effects: 1. The glulam of the utility model retains the material sense of the original natural wood of the glulam, light and light in texture, and has the advantages of good nail-holding force, and can completely solve the warping of the board , cracking and other problems; 2. The glulam of the utility model fully embodies the principle of "making the best use of materials", reduces the use of high-quality fir core boards, has low requirements for raw materials of fir core boards, and is low in cost. Small-diameter timber and short timber can meet its needs, realizing the rational utilization of resources; 3. The glulam of the utility model is beautiful, environmentally friendly, and has good decorative effects, which expands the application range of glulam and can be widely used in the preparation of furniture and floors. , Facade, ceiling and other interior decoration. the

Description of drawings

Fig. 1 is a structural schematic diagram of the glulam of the present invention. the

Fig. 2 is a structural schematic diagram of a glulam solid wood floor in the prior art. the

In the figure, 1-glulam layer; 2-poplar veneer layer; 3-fir core layer; 5, 7-string solid wood layer; 6-solid wood batten layer; 4,8-diameter solid wood layer . the

Detailed ways

Below in conjunction with embodiment the utility model is described in further detail. the

Embodiment 1 As shown in Figure 1, a new type of glulam, the structure from top to bottom is as follows: a glulam layer 1 with a thickness of 0.15mm, a poplar veneer layer 2 with a thickness of 1.2mm, and a glulam layer 2 with a thickness of 16mm. Chinese fir core board layer 3, poplar veneer layer 2 with a thickness of 1.2 mm, laminated wood layer 1 with a thickness of 0.15 mm. The glulam layer 1 is a glulam layer formed by laminating the single-layer glulam obtained in the prior art with an adhesive to obtain the glulam plank, and cutting the glulam plank. The poplar veneer layer 2 is a poplar veneer layer obtained by rotary cutting poplar according to the prior art. The fir core material layer 3 is a fir core board layer formed by finger-jointing several fir strips. The layers intersect each other vertically according to the direction of the wood grain, and are glued together with an adhesive. The adhesive used for the bonding between the fir core layer 3 and the poplar veneer layer 2 is urea-formaldehyde resin glue, and flour is used as a filler. To reduce production costs and increase glue viscosity, the adhesive used for gluing between the poplar veneer layer 2 and the laminated wood layer 1 is a mixed glue of urea-formaldehyde resin and polyvinyl acetate emulsion, and flour is used as a filler. the

Embodiment 2 A new type of glulam, the structure from top to bottom is: glulam layer 1 with a thickness of 0.2mm, poplar veneer layer 2 with a thickness of 1mm, fir core layer 3 with a thickness of 14mm, Poplar veneer layer 2 with a thickness of 1mm, and laminated wood layer 1 with a thickness of 0.2mm. The glulam layer 1 is a glulam layer obtained by laminating the single-layer glulam produced in the prior art with an adhesive to obtain a glulam plank, and cutting the glulam plank. The poplar veneer layer 2 is a poplar veneer layer obtained by rotary cutting poplar according to the prior art. The fir core material layer 3 is a fir core board layer formed by finger-jointing several fir strips. The layers intersect each other vertically according to the direction of the wood grain, and are glued together with an adhesive. The adhesive used for the bonding between the fir core layer 3 and the poplar veneer layer 2 is urea-formaldehyde resin glue, and flour is used as a filler. To reduce production costs and increase glue viscosity, the adhesive used for gluing between the poplar veneer layer 2 and the laminated wood layer 1 is a mixed glue of urea-formaldehyde resin and polyvinyl acetate emulsion, and flour is used as a filler. the

Claims (5)

1. A novel glulam, comprising a fir core board in the center and two layers of poplar veneer layers bonded to the upper and lower sides of the fir core board respectively; And two layers of laminated wood layers respectively bonded on the other side of the two layers of poplar veneer layers; The directions of wood grains of two adjacent board layers are perpendicular to each other. 2. A new type of glulam as claimed in claim 1, characterized in that: said glulam layer is obtained by slicing glued and laminated glulam boards. 3. A new type of glued lumber as claimed in claim 1, characterized in that: the poplar veneer layer is a rotary-cut poplar veneer layer. 4. A new type of glulam as claimed in claim 1, characterized in that: the fir core material layer is a fir strip formed by finger-jointed glue. 5. A new type of glulam as claimed in claim 1, characterized in that: the thickness of the fir core layer is 10 mm to 16 mm, the thickness of the poplar veneer layer is 0.6 mm to 1.5 mm, and the thickness of the glulam layer is 0.1 mm. mm ~ 1mm. the

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