Anti-deformation densified solid wood multilayer board structure and using method

Abstract

The invention discloses an anti-deformation densified solid wood multi-layer board structure and a using method, and belongs to the technical field of solid wood multi-layer boards, the anti-deformation densified solid wood multi-layer board structure comprises a board core, longitudinal strips are uniformly arranged at the top of the board core, transverse grooves are uniformly formed in the bottom of the board core, third arc grooves are formed in the tops of the longitudinal strips, and second arc grooves are formed in the inner top walls of the transverse grooves; a first clamping plate and a second clamping plate are arranged at the top and the bottom of the plate core respectively. The cavity similar to a rugby ball shape can be formed through concave-convex clamping of the plate core, the first clamping plate and the second clamping plate, load stress can be uniformly dredged and dispersed by means of the mechanical property of the curved surface, stress field distribution is remarkably optimized, the stress field is more gentle, the deformation failure risk such as warping caused by stress concentration is greatly reduced, meanwhile, the interlayer connection stability is enhanced, and the service life is prolonged. And cooperative improvement of interlayer connection mechanical properties and deformation resistance is achieved, the deformation resistance of the overall structure of the plate is effectively enhanced, and the stable service cycle of the plate under the complex working condition is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to a solid wood multi-layer board structure, in particular to a deformation-resistant encrypted solid wood multi-layer board structure and a use method, and belongs to the technical field of solid wood multi-layer boards. BACKGROUND

[0002] The multi-layer solid wood board is made by hot pressing three or more layers of single boards or thin boards. The multi-layer solid wood board uses a multi-layer plywood with longitudinal and transverse interlaced arrangement as a base material, and uses high-quality solid wood veneer or scientific wood as a surface fabric. The multi-layer solid wood board is made through several processes such as cold pressing, hot pressing, sanding, and curing. The multi-layer solid wood board is favored by consumers due to its characteristics of not being easy to deform and good performance in adjusting indoor temperature and humidity. The multi-layer solid wood board has good structural stability and is not easy to deform. The longitudinal and transverse gluing and high temperature and high pressure solve the deformation defect of the solid wood board from the internal stress aspect.

[0003] There are still some deficiencies in the prior art:

[0004] The existing multi-layer solid wood board only relies on longitudinal and transverse gluing, and the deformation resistance is highly dependent on the adhesive. The lack of effective mechanical constraint between the layers, uneven gluing, and hot pressing process deviation can easily lead to a decrease in bonding strength. In a humid environment, the adhesive layer can fail, the board can delaminate and warp, and the deformation resistance is poor.

[0005] Therefore, a deformation-resistant encrypted solid wood multi-layer board structure is designed to optimize the above problems. SUMMARY

[0006] The main purpose of the present application is to provide a deformation-resistant encrypted solid wood multi-layer board structure to solve the problems raised in the background.

[0007] The purpose of the present application can be achieved by adopting the following technical scheme:

[0008] A deformation-resistant encrypted solid wood multi-layer board structure, comprising a board core, the top of the board core is uniformly provided with longitudinal strips, the bottom of the board core is uniformly provided with transverse grooves, the top of each longitudinal strip is provided with an arc groove three, the inner top wall of each transverse groove is provided with an arc groove two, the top and bottom of the board core are respectively provided with a clamping plate one and a clamping plate two, the bottom of the clamping plate one is uniformly provided with a longitudinal groove aligned with the longitudinal strips, the inner top wall of the longitudinal groove is provided with an arc groove one, the top of the clamping plate two is uniformly provided with a transverse strip aligned with the transverse grooves, the top of each transverse strip is provided with an arc groove four, the top of the clamping plate one and the bottom of the clamping plate two are both provided with a reinforcing plate, and the side of the reinforcing plate away from each other is provided with a panel.

[0009] Preferably, the arc groove one and the arc groove three are both filled with a polyurethane adhesive layer one, and the arc groove two and the arc groove four are both filled with a polyurethane adhesive layer two.

[0010] Preferably, the depth of the horizontal groove is greater than the thickness of the horizontal bar, and the depth of the vertical groove is greater than the thickness of the vertical bar.

[0011] Preferably, the thickness of the first clamping plate and the second clamping plate is the same, both being 3-5mm.

[0012] Preferred: The panel is made of solid wood veneer with a veneer thickness of 0.6-1.2mm.

[0013] Preferably, the longitudinal strips are evenly distributed along the length of the core, and the spacing between adjacent longitudinal strips is 50-80mm.

[0014] Preferably, the central angle of arc groove one is 60°-90°, and the central angle of arc groove three is the same as that of arc groove one.

[0015] A method for using a deformation-resistant, high-density solid wood multilayer board structure includes the following steps:

[0016] Step 1: By pressing the clamping plate one onto the core, the longitudinal strips on the surface of the core are precisely engaged with the longitudinal grooves at the bottom of the clamping plate one;

[0017] Step 2: At the same time, the core board is pressed together with the bottom clamping plate 2, so that the horizontal groove at the bottom of the core board and the horizontal bar at the top of the clamping plate 2 form an interlocking connection. Based on the crisscrossing interlocking, the arc groove 1 and arc groove 3, as well as the arc groove 2 and arc groove 4, respectively enclose and form an olive-shaped hole.

[0018] Step 3: Uniformly distribute and disperse the load stress along the curved surface to optimize the smoothness of the stress field distribution, reduce the risk of deformation failure such as warping caused by stress concentration in the sheet metal, and achieve a synergistic improvement in the mechanical properties and deformation resistance of the interlayer connection.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention utilizes the combined use of a core board, longitudinal strips, transverse grooves, clamping plate one, longitudinal grooves, clamping plate two, transverse strips, reinforcing plate, face plate, and arc groove one, arc groove two, arc groove three, and arc groove four. The core board and clamping plates one and two interlock to form a rugby ball-shaped cavity. By leveraging the mechanical properties of the curved surface, the load stress can be evenly distributed, significantly optimizing the stress field distribution and making it more gradual. This greatly reduces the risk of deformation failures such as warping caused by stress concentration. Simultaneously, it strengthens the stability of interlayer connections, achieving a synergistic improvement in the mechanical properties and deformation resistance of interlayer connections. This effectively enhances the overall structural deformation resistance of the board and extends the stable service life of the board under complex working conditions.

[0021] 2. This invention, through the combined use of polyurethane adhesive layer one, polyurethane adhesive layer two, arc groove one, arc groove two, arc groove three, and arc groove four, enables the adhesive to form a specific arc-shaped adhesive block within the arc-shaped cavity through the interlocking of the adhesive with the board. After solidification, it possesses both elasticity and cushioning properties. Its elasticity directly enhances the resistance to deformation, while the cushioning effect offsets stress impacts, significantly reducing the risk of board warping and substantially improving the stability of interlayer bonding and overall resistance to deformation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged view of the structure at point A in the middle;

[0024] Figure 3 This is a front sectional view of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of the structure at point B in the middle.

[0026] In the diagram: 1. Core panel; 2. Longitudinal strip; 3. Horizontal groove; 4. Plywood 1; 5. Longitudinal groove; 6. Plywood 2; 7. Horizontal strip; 8. Reinforcing plate; 9. Panel; 10. Polyurethane adhesive layer 1; 11. Polyurethane adhesive layer 2; 12. Arc groove 1; 13. Arc groove 2; 14. Arc groove 3; 15. Arc groove 4. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention.

[0028] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Example 1

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a deformation-resistant and dense solid wood multilayer board structure, including a core board 1. The top of the core board 1 is uniformly provided with longitudinal strips 2, and the bottom of the core board 1 is uniformly provided with transverse grooves 3. The top of each longitudinal strip 2 is provided with an arc groove 3 14, and the inner top wall of the transverse groove 3 is provided with an arc groove 2 13. The top and bottom of the core board 1 are respectively provided with a first clamping plate 4 and a second clamping plate 6. The bottom of the first clamping plate 4 is uniformly provided with longitudinal grooves 5 aligned vertically with the longitudinal strips 2, and the inner top wall of the longitudinal grooves 5 is provided with an arc groove 12. The top of the second clamping plate 6 is uniformly provided with transverse strips 7 aligned vertically with the transverse grooves 3, and the top of each transverse strip 7 is provided with an arc groove 4 15. The top of the first clamping plate 4 and the bottom of the second clamping plate 6 are both provided with reinforcing plates 8, and the side of the reinforcing plates 8 that is far apart from each other is provided with a panel 9.

[0034] By pressing the clamping plate 4 onto the core plate 1, the longitudinal strips 2 on the surface of the core plate 1 are precisely engaged with the longitudinal grooves 5 at the bottom of the clamping plate 4. At the same time, the core plate 1 is pressed with the bottom clamping plate 6, so that the transverse grooves 3 at the bottom of the core plate 1 and the transverse strips 7 at the top of the clamping plate 6 form an interlocking connection. Based on the crisscrossing interlocking, the arc grooves 12 and 314, as well as the arc grooves 213 and 415, respectively enclose and form olive-shaped holes, which uniformly guide and disperse the load stress along the arc surface, optimize the smoothness of the stress field distribution, reduce the risk of deformation failure such as warping caused by stress concentration in the plate, and achieve a synergistic improvement in the mechanical properties and deformation resistance of the interlayer connection.

[0035] Example 2

[0036] The solution in Example 1 will be further described below with reference to its specific working method.

[0037] like Figure 3 and Figure 4As shown, in a preferred embodiment, based on the above method, a polyurethane adhesive layer 10 is filled between arc groove 12 and arc groove 3 14, and a polyurethane adhesive layer 2 11 is filled between arc groove 2 13 and arc groove 4 15.

[0038] Flip the clamping plate 4 so that the longitudinal groove 5 faces upward. Then, inject the polyurethane adhesive layer 10 into the interior of the longitudinal groove 5. Flip the core 1 again so that the core 1 and the clamping plate 4 are interlocked by the longitudinal strip 2 and the longitudinal groove 5. The cavity formed by the arc groove 12 and the arc groove 3 14 squeezes the polyurethane adhesive layer 10 into a rugby ball shape. Similarly, inject the polyurethane adhesive layer 2 11 into the interior of the transverse groove 3. Then, press the clamping plate 2 6 onto the core 1 so that the two are interlocked. The cavity formed between the arc groove 2 13 and the arc groove 4 15 squeezes the polyurethane adhesive layer 2 11 into a rugby ball shape. After the polyurethane adhesive layer 10 and the arc groove 12 solidify, they form a rubber block strip with a certain elasticity, which has elasticity and plays a role in resisting deformation and buffering.

[0039] like Figure 1 and Figure 3 As shown, in a preferred embodiment, based on the above method, the groove depth of the horizontal groove 3 is greater than the thickness of the horizontal bar 7, and the groove depth of the vertical groove 5 is greater than the thickness of the vertical bar 2.

[0040] This creates a reserved space to facilitate the flow of adhesive, ensure uniform filling of the adhesive layer, and guarantee the quality of pressing and structural stability.

[0041] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the thickness of the first clamp 4 and the second clamp 6 is the same, both being 3-5mm.

[0042] This ensures that the upper and lower structures of the board are symmetrical and the stress is balanced, effectively preventing warping and deformation caused by differences in stiffness between the upper and lower layers, and improving the overall flatness.

[0043] like Figure 1 As shown, in a preferred embodiment, based on the above method, the panel 9 is further made of solid wood veneer with a veneer thickness of 0.6-1.2mm.

[0044] While ensuring excellent resistance to deformation, it provides a natural and beautiful surface texture, taking into account both functionality and decoration, and meeting the requirements for high-quality appearance.

[0045] like Figure 1 As shown, in a preferred embodiment, based on the above method, the longitudinal strips 2 are evenly distributed along the length direction of the core 1, and the spacing between adjacent longitudinal strips 2 is 50-80mm.

[0046] This ensures that the support points are evenly distributed, that stress can be more effectively dispersed, avoids local stress concentration, and further enhances the overall bending and deformation resistance of the plate.

[0047] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the central angle of the arc groove 12 is 60°-90°, and the central angle of the arc groove 3 14 is the same as that of the arc groove 12.

[0048] The arc-shaped structure within this angle range can maximize stress dispersion efficiency, guide stress to be transmitted smoothly along the arc surface, and reduce the risk of cracking and deformation from the source.

[0049] Example 3

[0050] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0051] Flip the clamping plate 4 so that the longitudinal groove 5 faces upward, and inject the polyurethane adhesive layer 10 into the longitudinal groove 5. Flip the core 1 so that the longitudinal strips 2 on its surface align with the longitudinal grooves 5 of the clamping plate 4, and engage them. During the process, the arc groove 12 in the longitudinal groove 5 and the arc groove 14 on the longitudinal strip 2 together form a rugby ball-shaped cavity. This cavity compresses the polyurethane adhesive layer 10 into a rugby ball shape. After the adhesive cures, it forms an elastic block that provides elasticity and resistance to deformation, and also acts as a cushion.

[0052] Similarly, polyurethane adhesive layer 211 is injected into the transverse groove 3 on the core board 1, and the clamping plate 26 is pressed onto the core board 1 so that the transverse strip 7 and the transverse groove 3 are precisely engaged.

[0053] Similarly, arc groove 2 13 and arc groove 4 15 also enclose and form a rugby ball-shaped cavity, extruding the polyurethane adhesive layer 2 11 into a rugby ball-shaped colloid. After curing, it also forms an elastic block, further enhancing its resistance to deformation and cushioning performance.

[0054] Ultimately, the core plate 1 and the first and second clamping plates 4 and 6 form a stable three-dimensional mechanical interlock through the longitudinal and transverse concave-convex structures, effectively limiting the relative displacement between layers.

[0055] The olive-shaped arc profile and polyurethane adhesive layer can evenly distribute external load stress along the arc surface, avoiding stress concentration. At the same time, the cured polyurethane elastic block provides stress buffering, reducing the risk of warping, cracking and other problems.

[0056] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A deformation-resistant, high-density solid wood multilayer board structure, comprising a core (1), characterized in that: The top of the core (1) is uniformly provided with longitudinal strips (2), the bottom of the core (1) is uniformly provided with transverse grooves (3), the top of the longitudinal strips (2) is provided with arc groove three (14), the inner top wall of the transverse groove (3) is provided with arc groove two (13), the top and bottom of the core (1) are respectively provided with clamping plate one (4) and clamping plate two (6), the bottom of clamping plate one (4) is uniformly provided with longitudinal grooves (5) aligned vertically with the longitudinal strips (2), the inner top wall of the longitudinal groove (5) is provided with arc groove one (12), the top of clamping plate two (6) is uniformly provided with transverse strips (7) aligned vertically with the transverse grooves (3), the top of the transverse strips (7) is provided with arc groove four (15), the top of clamping plate one (4) and the bottom of clamping plate two (6) are both provided with reinforcing plates (8), and the side of the reinforcing plates (8) that are far apart from each other is provided with a panel (9).

2. The anti-deformation and reinforced solid wood multilayer board structure according to claim 1, characterized in that: The space between arc groove 1 (12) and arc groove 3 (14) is filled with polyurethane adhesive layer 1 (10), and the space between arc groove 2 (13) and arc groove 4 (15) is filled with polyurethane adhesive layer 2 (11).

3. The anti-deformation and densified solid wood multilayer board structure according to claim 1, characterized in that: The groove depth of the transverse groove (3) is greater than the thickness of the transverse bar (7), and the groove depth of the longitudinal groove (5) is greater than the thickness of the longitudinal bar (2).

4. The anti-deformation and reinforced solid wood multilayer board structure according to claim 1, characterized in that: The thickness of the first clamp (4) and the second clamp (6) is the same, both being 3-5mm.

5. The anti-deformation and reinforced solid wood multilayer board structure according to claim 1, characterized in that: The panel (9) is made of solid wood veneer with a veneer thickness of 0.6-1.2mm.

6. The anti-deformation and reinforced solid wood multilayer board structure according to claim 1, characterized in that: The longitudinal strips (2) are evenly distributed along the length of the core (1), and the spacing between adjacent longitudinal strips (2) is 50-80mm.

7. The anti-deformation and reinforced solid wood multilayer board structure according to claim 1, characterized in that: The central angle of the first arc groove (12) is 60°-90°, and the central angle of the third arc groove (14) is the same as that of the first arc groove (12).

8. A method for preparing a deformation-resistant and reinforced solid wood multilayer board structure, based on the deformation-resistant and reinforced solid wood multilayer board structure according to any one of claims 1-7, characterized in that: Includes the following steps: Step 1: By pressing the clamping plate 1 (4) onto the core plate (1), the longitudinal strips (2) on the surface of the core plate (1) are precisely engaged with the longitudinal grooves (5) at the bottom of the clamping plate 1 (4); Step 2: At the same time, the core (1) and the bottom clamping plate 2 (6) are pressed together, so that the horizontal groove (3) at the bottom of the core (1) and the horizontal bar (7) at the top of the clamping plate 2 (5) form an interlocking connection. On the basis of the interlocking in the crisscrossing, the arc groove 1 (12) and arc groove 3 (14) and the arc groove 2 (13) and arc groove 4 (15) respectively enclose and form an olive-shaped hole. Step 3: Distribute and disperse the load stress evenly along the curved surface, optimize the smoothness of the stress field distribution, reduce the risk of deformation failure such as warping caused by stress concentration in the plate, and achieve a synergistic improvement in the mechanical properties and deformation resistance of the interlayer connection.

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