CN201141192Y - Solid wood composite floor - Google Patents

Abstract

A solid wood composite floor comprises a solid wood surface layer, a core layer and a bottom layer when necessary, and the layers are tightly bonded to each other, and is characterized in that at least one glass fiber layer is tightly bonded between any two layers. Since at least one glass fiber layer is bonded between the layers, the solid wood composite floor can overcome the deformation force of the floor in all directions, improve the moisture deformation resistance and flexibility of the solid wood composite floor, and increase the strength of the floor.

Description

A kind of solid wood composite floor

technical field

The utility model relates to a building decoration material structure, in particular to a composite solid wood floor.

Background technique

Solid wood composite flooring has the advantages of natural wood feeling, easy installation and maintenance, anti-corrosion and moisture-proof, anti-bacterial and suitable for electric heating and so on. In the 1980s and 1990s, solid wood composite flooring has become a mainstream product in the European market. Since entering the Chinese market in recent years, the annual sales have been increasing rapidly.

The so-called solid wood composite flooring is a tongue-and-groove floor made of solid wood panels or veneers as the panel, solid wood strips as the core layer, and veneer as the bottom layer, and a tongue-and-groove floor made of veneer as the surface layer and plywood as the base material. .

The first type is shown in Figure 1. The solid wood composite flooring with veneer as the surface layer 11 and plywood as the core layer or base material 12 also has different water absorption expansion rates due to the different densities of the panel and the base material, and the vertical and horizontal dimensions of the panel. Different water expansion rates will also cause floor bending and tile-shaped deformation.

There is also a solid wood composite floor, as shown in Figure 3, including a solid wood surface layer 21, a high-density fiberboard core layer 22, and a backboard 23, wherein the surface layer is made of high-quality solid wood, and the backboard is made of ordinary solid wood.

As shown in Figure 3, the high-quality solid wood is sawed and sliced into surface boards 31, and the common solid wood strips 341 are horizontally spliced into core boards 32 and bottom boards 33. Vertical three-dimensional arrangement method, glued together, and pressed into boards at high temperature to obtain solid wood composite flooring. Because it is made of cross-laminated boards of different tree species, it overcomes the disadvantage of unidirectional isotropy of solid wood flooring, and its dry shrinkage and wet expansion rate is small. However, due to the different material density of each layer of solid wood, the water absorption expansion rate between the layers is different, and the vertical and horizontal water absorption expansion rates of the panels are different, so the vertical and horizontal directions are different.

No matter what type of solid wood composite flooring, due to the different materials of each layer, the different densities of different materials lead to different water absorption expansion rates, and the vertical and horizontal water absorption expansion rates of the panels are different, so although the moisture content has been adjusted during the production process Balanced treatment, but in a humid environment, it will still absorb water and expand, resulting in floor bending or tile deformation.

Utility model content

In order to solve the problem that the floor is prone to bending and tile deformation in the prior art, the utility model proposes to add at least one layer of glass fiber that is not easy to absorb water and has high tensile strength between the layers of the solid wood composite floor. The layers of similar materials are tightly bonded to improve the bending resistance, tile deformation and strength of the floor.

The solid wood composite floor of the utility model includes a solid wood surface layer, a core layer and an optional bottom layer, and the layers are closely pasted. It is characterized in that at least one glass fiber layer is tightly pasted between any two layers.

Among them, a kind of solid wood composite floor is that the solid wood surface layer is a solid wood panel or a solid wood veneer, the core layer is a composite core layer of solid wood strips, and the bottom layer is a solid wood veneer. At this time, the glass fiber layer is preferably pasted between the surface layer and the core layer. between, and/or between the core and the bottom layer.

Another kind of solid wood composite flooring is that the solid wood surface layer is solid wood veneer, and the core layer is plywood. In this case, preferably, the glass fiber layer is glued between the facing layer and the plywood core layer. Fiberglass plies can also be glued between plywood plies.

Another kind is that the solid wood surface layer is a solid wood veneer, the core layer is a medium density or high density fiberboard, and the bottom layer is a veneer. At this time, preferably, the glass fiber layer is pasted between the surface layer and the core layer, and/or the core layer between the bottom layer.

In the present invention, "glass fiber" refers to a fiber drawn or blown from molten glass, with a diameter of about several microns to tens of microns. It can be made into long fibers and short fibers, which are called glass wool and glass wool respectively. The strength is very high, about 0.7 N/tex (7 grams force/denier). It has excellent heat resistance, corrosion resistance, thermal insulation, electrical insulation and sound absorption. It can be spun into glass yarn, woven into glass cloth and glass ribbon, etc.

The glass fiber layer used may be glass fiber cloth, preferably the thickness of the glass fiber cloth is less than 0.3mm, more preferably the thickness of the glass fiber cloth is 0.02-0.05mm.

The glass fiber layer used in the present invention can also be a glass fiber mesh structure made of glass fiber filaments. The grid form can be arbitrary. Preferably, the glass fiber grid structure is a square grid structure, a rectangular grid structure or a prismatic grid structure. At this time, preferably, the thickness of the glass fiber grid structure is 0.3 mm or less, and the grid structure density may be 5-150 g/m ² . More preferably, the thickness of the glass fiber mesh is 0.02-0.05 mm, and the mesh density is 20-60 g/m ² .

The solid wood composite floor of the utility model can also form floor connection structures as required, such as tenon and groove parts.

Because the glass fiber material has good heat and humidity resistance and stability, and has high tensile strength, it can significantly improve the strength of the material when combined with other materials and has good adhesion properties. Therefore, by pasting at least A layer of glass fiber can overcome the deformation force of the floor in all directions, improve the moisture resistance and flexibility of the solid wood composite floor and increase the strength of the floor.

Description of drawings

Fig. 1 is a structural schematic diagram of a solid wood composite floor in the prior art.

Fig. 2 is a structural schematic diagram of another solid wood composite flooring in the prior art.

Fig. 3 is a structural schematic diagram of yet another solid wood composite flooring in the prior art.

Fig. 4 is a structural schematic diagram of a solid wood composite floor according to the first embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a solid wood composite floor according to a second embodiment of the present invention.

Fig. 6 is a structural schematic diagram of a solid wood composite floor according to a third embodiment of the present invention.

Explanation of reference signs

11 solid wood surface

12 plywood

121 Layers of plywood

14 prismatic fiberglass mesh layers

21 oak surface

22 MDF

23 poplar bottom layer

24 layers of rectangular fiberglass mesh

25 square fiberglass mesh layers

31 oak surface

32 poplar strip composite core layer

321 poplar strips

33 poplar bottom layer

34 square fiberglass mesh layers

35 prismatic fiberglass mesh layers

Detailed ways

The utility model relates to a solid wood composite floor that can be assembled and combined with each other or a solid wood composite floor that can be pasted together.

Introduce the content of the utility model in detail below in conjunction with accompanying drawing.

A kind of specific embodiment of the present utility model is as shown in Figure 4, takes common multi-layer composite board as example, comprises solid wood surface layer 11, prismatic glass fiber mesh layer 14, plywood 12 to form, and glues between each layer paste.

Among them, the solid wood surface layer 11 is directly sawn and trimmed by logs into solid panels of required specifications, and the plywood 12 is directly sawed and trimmed by multi-layer ordinary logs into solid wood veneers 121 of required specifications, which are criss-cross pasted and hot-pressed. It is multi-layered. The glass fiber mesh 14 used, for example, has a thickness of 0.02-0.05 mm and a mesh density of 20-60 g/m ² .

It is formed by applying glue on the plywood 12, affixing a glass fiber grid, affixing a solid wood surface layer 11, and curing under heat and pressure. The glue used is conventional floor glue.

According to a variation of this embodiment, one or more layers of glass fiber can also be pasted between the individual solid wood veneers constituting the plywood.

The solid wood floor of this embodiment can also be slotted to form floor connection structures such as tenon pieces and groove pieces as required, and used in combination with each other; it can also be used without forming a connection structure and directly pasted together.

Another specific embodiment of the present utility model is shown in Figure 5. Taking a three-layer composite board as an example, it includes an oak surface layer 21, an MDF medium density fiberboard core layer 22, a poplar bottom layer 23, and a layer between the surface layer 21 and The rectangular glass fiber layers 24 between the core layers 22, and/or the square glass fiber grid layers 25 between the core layer 22 and the bottom layer 23, are glued between each layer.

Among them, the oak surface layer 21 is directly sawed and trimmed by oak logs into oak panels of required specifications, the poplar bottom layer 23 is directly sawed and trimmed by poplar logs into poplar boards of required specifications, and the rectangular glass fiber layer 24, For example, its thickness is 0.02 mm, and its mesh density is 30-40 g/m ² ; for example, the square glass fiber mesh layer 25 has a thickness of 0.03 mm, and its density is 20-60 g/m ² .

By applying glue on one side of the medium density fiberboard core layer 22 and pasting the rectangular fiberglass layer 24 and the surface layer 21, gluing on the other side and pasting the square fiberglass mesh layer 25 and the poplar bottom layer 23, heating and pressing solidified. The glue used is conventional floor glue.

In a variant of this embodiment, it is possible to glue a glass fiber layer only between the facing layer 21 and the core layer 22 , or between the core layer 22 and the bottom layer 23 .

The solid wood composite floor in this embodiment can also form floor connection structures such as tenon and groove parts according to needs, and be used in combination with each other; it can also be used in combination without forming a connection structure.

Yet another embodiment of the present utility model is shown in Figure 6. Taking a three-layer composite board as an example, it includes an oak wood surface layer 31, a solid wood strip composite core layer 32 and a poplar veneer bottom layer 33, and the surface layer 31 The square glass fiber grid layer 34 between the core layer 32 and the prismatic glass fiber grid layer 35 between the core layer 32 and the bottom layer 33 are pasted with glue between each layer.

Among them, the oak surface layer 31 is directly sawed and trimmed by oak logs into oak panels of required specifications, and the combined core layer 32 of poplar strips is directly sawed and trimmed by poplar logs into poplar strips 321 of required specifications. A plurality of poplar strips are arranged next to each other in order to form a combined core layer 32 of poplar strips of the same specifications that criss-cross with the surface layer. The bottom layer of poplar wood 33 is directly trimmed by sawing poplar logs into poplar boards of required specifications. Square glass The fiber mesh layer 34 has a thickness of, for example, 0.05 mm and a density of 60-80 g/m ² ; the prismatic glass fiber mesh layer 35 has a thickness of, for example, 0.02 mm and a density of 15-40 g/m ² .

By gluing on the poplar bottom layer 33 and pasting the prismatic glass fiber mesh layer 35 and the poplar composite core layer 32, then gluing on the poplar composite core layer 32 and pasting the square fiberglass mesh layer 34 and The surface layer 31 is formed by curing under heat and pressure. The glue used is conventional floor glue.

In a variant of this embodiment, it is also possible to glue a glass fiber layer only between the top layer 31 and the core layer 32 , or between the core layer 32 and the bottom layer 33 .

The solid wood composite floor in this embodiment can also form floor connection structures such as tenon and groove parts according to needs, and be used in combination with each other; it can also be used in combination without forming a connection structure.

The forms of the glass fibers that can be used in the present invention are not limited to the above embodiments, and can also have many other forms, such as circular, elliptical or other various regular or irregular grid shapes.

There is no special limitation for the solid wood surface layer in the utility model, and it can be commonly used tree species usually used for solid wood surface layers, such as including: ash, birch, beech, oak, beech, maple, catalpa, cherry, oak wood etc.

For the composite core layer of solid wood strips in the utility model, there is no special limitation, and it can be common tree species commonly used in the core layer of solid wood strips, such as common tree species including poplar, pine, paulownia, fir, birch, etc.

There is no particular limitation on the tree used for the bottom layer of the present invention, and it may be a commonly used tree commonly used for the bottom layer, such as including: poplar, pine, birch and the like.

The solid wood boards or strips in the utility model are all balanced by moisture content after being sawed by logs to reach the required moisture content, such as 6-7% for the surface layer and 7-8% for the bottom layer, and then paste and press .

The glue used is conventional glue used for making floors, which can be single-component glue or two-component glue. For example, the ratio of two-component glue can be raw glue: curing agent = 3: 1. Applied within 15 minutes.

The amount of glue applied on one side can be 160-280g/m ² .

Apply glue between the layers and then press and heat or cold press to cure. Generally, the pressure is greater than 0.6mpa. When the temperature is 30°C, the curing time is 2-3 hours; when the temperature is lower than 15°C, the curing time is 3-5 hours.

The glass fiber layer used in the utility model can not only be limited to the glass fiber material itself, but also have the same physical properties as glass fiber, such as heat and humidity resistance, no water absorption, high tensile strength, etc., when combined with other materials Can significantly increase the strength of the material and any other material with good adhesion.

Due to the good heat and humidity resistance and stability of glass fiber, especially the very low dry shrinkage and wet expansion rate, it can hardly be considered. Glass fiber has the property of significantly improving the strength of the material and having good adhesion when combined with other materials. Therefore, the utility model can improve the anti-shrinkage and swelling performance of the solid wood composite floor structure by pasting at least one layer of glass fiber material sheet or grid layer between each layer, thereby improving the deformation resistance and Flexibility and increased floor strength.

Although the present utility model has been described in detail through several embodiments above, it is not limited to these embodiments, and there may be more other embodiments without departing from the concept of the present utility model.

Claims (10)

1. a solid wooden compound floor comprises solid wood surface layer and sandwich layer, closely pastes between layer and the layer, it is characterized in that, closely pastes layer of glass layer at least between any two-layer.

2. solid wooden compound floor according to claim 1 is characterized in that, also comprises bottom.

3. solid wooden compound floor according to claim 2 is characterized in that, the solid wood surface layer is solid wood jigsaw or plates of solid wood, sandwich layer is spliced for the solid wood bar, bottom is a plates of solid wood, and glass fiber is placed between surface layer and the sandwich layer, and/or between sandwich layer and the bottom.

4. solid wooden compound floor according to claim 1 is characterized in that, the solid wood surface layer is a plates of solid wood, and sandwich layer is a veneer, and glass fiber is placed between surface layer and the sandwich layer.

5. solid wooden compound floor according to claim 4 is characterized in that, glass fiber is placed between each layer that constitutes veneer.

6. solid wooden compound floor according to claim 2 is characterized in that, the solid wood surface layer is a plates of solid wood, and sandwich layer is middle density or high density fiberboard, and bottom is a veneer, and described glass fiber is placed between surface layer and the sandwich layer, and/or between sandwich layer and the bottom.

7. according to each described solid wooden compound floor in the claim 1～6, it is characterized in that described glass layer is the network that glass fabric, glass fiber constitute.

8. solid wooden compound floor according to claim 7 is characterized in that, described glass layer is square net structure, rectangle network or prismatic network.

9. solid wooden compound floor according to claim 7 is characterized in that, the thickness of described fiberglass gridding is below the 0.3mm, and mesh-density is 5～150g/m ²

10. solid wooden compound floor according to claim 9 is characterized in that, the thickness of described fiberglass gridding is 0.02～0.05mm, and mesh-density is 20～60g/m ²

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