CN211396457U - Solid wood thick core composite floor - Google Patents

Abstract

The utility model discloses a thick core laminate flooring of wood, include the core, locate the bottom plate of core one side and locating the face plywood of core opposite side, be equipped with a plurality of stresses on the core and subdue the groove. Stress relief grooves are arranged at intervals along the wood grain direction on one side or two sides of the core plate to release stress on the core plate due to water evaporation, so that the problems of distortion, rib lines, layering and the like caused by stress concentration are avoided; the stress release function of the stress reduction grooves is maximized by selecting the opening positions, the number and the directions of the stress reduction grooves, designing the shape and selecting the size, so that the core plate keeps good deformation tolerance capability and the service life of the floor is prolonged; through set up waterproof wearing layer on the panel, set up anticorrosive coating under the bottom plate, avoid inside moisture gets into the floor, the effective control moisture absorption level makes the effect of stress subduction groove can continuous stable performance.

Description

Solid wood thick core composite floor

Technical Field

The utility model relates to a wooden floor technical field specifically is a thick core laminate flooring of wood.

Background

Along with the improvement of the living standard of people, the application of the wood floor in the home is more and more extensive. The wood floor is limited by different water content of the manufacturing material and different drying shrinkage coefficients of wood species, and different problems can occur in the manufacturing process and after the manufacturing is finished. For example, when mixed wood, particularly wood mixed wood having different densities and different dry shrinkage coefficients, are used, asymmetric stresses tend to develop on both sides of the center layer of the substrate board, causing the wood substrate to bend or distort. For another example, in the same base material plate blank, the difference of the water content of different single plates is large, the water content of some single plates is 7%, the water content of some single plates is 14%, after gluing and hot pressing, the water content of all parts of the finished plate is not uniformly distributed, although the plate is flat when just coming out of the press, when the water content is rebalanced, the plate is bent and distorted; if the water content of individual areas of the plate is too high, a delamination phenomenon can also occur. In addition, the wood floor has strong moisture absorption capacity, but is affected by moisture evaporation during desorption, the interior of the wood floor is subjected to large stress, the rib lines are easy to generate and the layering phenomenon is easy to cause, and if the wood floor cannot be timely desorbed and the moisture is retained for a long time, the bonding force between the single boards is poor, and the problems are also caused. Therefore, the traditional three-layer wood floor is affected by the difference of the water content between the veneers and the moisture absorption of the board, so that the board is easy to distort and deform, the appearance is not beautiful, and the long-term maintenance and use of the wood base material board are not facilitated in the practicability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thick core laminate flooring of wood solves traditional timber apron panel distortion, easily produces the problem of rib line or even layering, and the moisture evaporation stress of in time releasing effectively prolongs the life on floor.

In order to achieve the above purpose, the utility model adopts the following specific technical scheme:

a solid wood thick core composite floor comprises a core plate, a bottom plate arranged on one side of the core plate and a face plate arranged on the other side of the core plate, wherein a plurality of stress reduction grooves are formed in the core plate, are arranged on one side of the core plate connected with the face plate and/or one side of the core plate connected with the bottom plate, and are arranged along the wood grain direction of the core plate; the core board is vertical to the bottom board and the face board along the wood grain direction. The utility model discloses a set up a plurality of stresses and subdue the groove on the core for the core can subdue the groove release through this stress because of the stress that moisture evaporation received, thereby avoids stress concentration to cause the core to warp in an area and produces the rib line, makes the core can keep good deformation endurance ability. It is specific, set up the stress at one side of core or both sides along following the wood grain direction interval and subdue the groove, on the one hand, make the stress that core self produced and receive come from the stress that the adjacent layer was applyed obtain abundant release, promote inside gas permeability simultaneously greatly, the inside atress of quick balance core and the moisture content of each layer, on the other hand, the stress subducts the groove and follows the wood grain direction along the core and set up and can effectively reduce stress release resistance, accelerate release speed, and avoid stress to subdue inslot surface roughness, reduce the processing degree of difficulty. The core board is vertical to the bottom board and the face board along the wood grain direction, so that the stress release is ensured, and the bottom board and the face board adjacent to the core board are not influenced, thereby avoiding layering.

Preferably, when the stress reduction grooves are formed in one side of the core plate connected with the surface plate and one side of the core plate connected with the bottom plate, the stress reduction grooves on the two sides of the core plate are arranged in a staggered manner. The mode of crisscross setting makes stress can be abundant, evenly release, avoids the inside different positions atress difference of core board too big, sets up like this simultaneously and can make the inside partial stress that can offset of core board, improves the stress release limit.

Preferably, the cross section of the stress reduction groove is arc-shaped, U-shaped or rounded rectangle. The shape and structure of the stress reduction groove of the utility model are selected to cause the stress to diffuse in multiple directions as much as possible, thereby reducing the destructiveness of the stress reduction groove; meanwhile, the structure is not easy to retain moisture, no dead angle exists, and moisture at each part can be diffused.

Preferably, the width of the stress reduction groove is 1-3 mm, the depth of the stress reduction groove is 20-30% of the thickness of the core plate, the core plate is arranged at equal intervals, and the interval distance is 4-10 cm. The parameter ranges of the depth, the width and the spacing distance of the stress reduction grooves can completely release the stress of the core plate, the depth and the width can not influence the strength and the integrity of the core plate, and the integral stability of the floor is improved.

Preferably, one side of the panel, which is far away from the core plate, is provided with a waterproof wear-resistant layer, and one side of the bottom plate, which is far away from the core plate, is provided with an anticorrosive coating. Waterproof wearing layer makes the floor more stand wear and tear, increases life, and more importantly can prevent effectively that moisture from getting into the floor inside for panel moisture absorption degree is in controllable scope all the time, avoids the core to cause the floor to absorb water to warp because of too many stresses of moisture can't in time release completely. The anti-corrosion coating can prevent moths from damaging the floor, prevent the bottom plate and the core plate from being corroded, prevent water from permeating into the floor from the bottom and further protect the floor.

Preferably, the waterproof wear-resistant layer is an aluminum oxide composite plastic film. The aluminum oxide composite plastic film has strong mechanical firmness, abrasion resistance and good water resistance, and can effectively protect the solid wood thick-core substrate board.

Preferably, the core board is a solid wood veneer which is longitudinally rotary-cut and is made of the whole solid wood.

The utility model discloses following beneficial effect has:

1. stress reduction grooves are arranged at intervals along the wood grain direction on one side or two sides of the core plate to release the core plate due to moisture

The stress of evaporation avoids the generation of problems of distortion, rib lines, layering and the like caused by stress concentration. The stress reduction groove is formed in the position, the number and the direction, the shape design of the stress reduction groove is adopted, the size of the stress reduction groove is selected, the stress release effect of the stress reduction groove is maximized, the internal stress of the core plate and the water content of each layer are quickly balanced on the premise that the strength and the integrity of the core plate are not influenced, the core plate can keep good deformation tolerance, and the service life of the floor is effectively prolonged.

2. Through set up waterproof wearing layer on the panel, set up anticorrosive coating under the bottom plate, avoid inside moisture gets into the floor in a large number, the moisture absorption level of effective control floor for the effect of stress subducting groove can continuous stable performance. In addition, waterproof wearing layer increases floor surface mechanical strength, and anticorrosive coating can prevent the moth and damage and the corruption of bottom plate and core, further increases the life on floor.

Drawings

Fig. 1 is a perspective view of the solid wood thick core composite floor of the present invention.

Fig. 2 is the schematic view of the layered structure of the thick-core composite floor of the solid wood.

In the figure: 1-core board, 2-floor, 3-panel, 4-waterproof wear-resistant layer, 5-anticorrosion coating and 11-stress reduction groove.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention based on the embodiments of the present invention.

Example 1

The utility model provides a thick core laminate flooring of wood, as shown in fig. 1 and 2, include core 1, locate the bottom plate 2 of 1 one side of core and locating the panel 3 of 1 opposite side of core, panel 3 keeps away from one side of core 1 is equipped with waterproof wearing layer 4, bottom plate 2 keeps away from one side of core 1 is equipped with anticorrosive coating 5. In this embodiment, the core board 1 is a solid wood veneer made of a whole piece of solid wood, and is made by rotary cutting a wood cutting device along the wood grain direction, i.e. the longitudinal direction of the wood; the waterproof wear-resistant layer 4 is an aluminum oxide composite plastic film

Be equipped with a plurality of stress reduction grooves 11 on core 1, stress reduction grooves 11 crisscross the setting locate core 1 with the one side that panel 3 is connected and core 1 with the one side that bottom plate 2 is connected, and follow core 1 sets up along the grain direction, core 1 along the grain direction respectively with bottom plate 2 with panel 3 along the grain direction mutually perpendicular.

The stress reduction grooves 11 are respectively arranged on two sides of the core plate at equal intervals, the interval distance is 4cm, the cross section is a rounded rectangle, the width is 1mm, the depth is 4mm, and the depth is 20% of the thickness of the core plate 1.

Example 2

The structure of this embodiment thick core laminate flooring of wood is basically the same as embodiment 1, and the difference lies in stress reduction groove 11 only locates core 1 one side, in this embodiment, stress reduction groove 11 locates the one side that core 1 and panel 3 are connected, and bottom plate 2 moisture content 8%, panel 3 moisture content 7%, and the moisture absorption level of bottom plate 2 and panel 3 is lower, and the moisture content is more close, and stress can fully be released in stress reduction groove 11 unilateral setting.

Example 3

The structure of the thick-core composite solid wood floor board is basically the same as that of embodiment 1, and the difference is that the stress reduction grooves 11 are axisymmetric arcs and are respectively arranged at equal intervals on two sides of the core board, the interval distance is 6cm, the width is 2mm, the depth is 5mm, and the depth is 25% of the thickness of the core board 1.

The solid wood thick-core composite floors shown in the above examples 1 to 3 are respectively placed in different humidity environments for long-term use, and have no problems of distortion, rib lines, layering and the like, and have good stability and long service life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a thick core laminate flooring of wood, includes core (1), locates bottom plate (2) of core (1) one side and locating panel (3) of core (1) opposite side, its characterized in that: the core plate (1) is provided with a plurality of stress reduction grooves (11), the stress reduction grooves (11) are arranged on one side of the core plate (1) connected with the panel (3) and/or one side of the core plate (1) connected with the bottom plate (2), and the stress reduction grooves are arranged along the wood grain direction of the core plate (1); the core board (1) is vertical to the bottom board (2) and the face board (3) along the wood grain direction.

2. The solid wood thick core composite floor according to claim 1, characterized in that: when the stress reduction grooves (11) are arranged on one side of the core plate (1) connected with the panel (3) and one side of the core plate (1) connected with the bottom plate (2), the stress reduction grooves (11) on the two sides of the core plate (1) are arranged in a staggered mode.

3. The solid wood thick core composite floor according to claim 1, characterized in that: the cross section of the stress reduction groove (11) is arc-shaped, U-shaped or rounded rectangle.

4. The solid wood thick core composite floor according to claim 1, 2 or 3, characterized in that: the width of the stress reduction groove (11) is 1-3 mm, the depth of the stress reduction groove is 20-30% of the thickness of the core plate (1), the core plate (1) is arranged at equal intervals, and the interval distance is 4-10 cm.

5. The solid wood thick core composite floor according to claim 1, characterized in that: the panel (3) is far away from one side of the core plate (1) is provided with a waterproof wear-resistant layer (4), and the bottom plate (2) is far away from one side of the core plate (1) is provided with an anticorrosive coating (5).

6. The solid wood thick core composite floor according to claim 5, wherein: the waterproof wear-resistant layer (4) is an aluminum oxide composite plastic film.

7. The solid wood thick core composite floor according to claim 1, characterized in that: the core board (1) is a solid wood veneer which is longitudinally rotary cut and is made of the whole solid wood.

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