Composite board with good bending resistance

Abstract

The utility model discloses a composite board with better bending resistance. The composite board comprises a composite board body, the composite board body comprises a surface layer board and a bottom layer board, and a core layer anti-bending structure capable of effectively improving the overall bending resistance of the composite board body is arranged between the surface layer board and the bottom layer board. By adopting the structure, the composite board is reasonable in overall design and simple in structure, the overall performance of the composite board can be effectively improved by adopting the core layer anti-bending structure, the tensile strength and the deformation resistance of the composite board can be effectively improved, the composite board is not prone to cracking and deformation, and the service life of the composite board is prolonged. And development and application of the composite board are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of composite plates with good bending resistance, in particular to a composite plate with good bending resistance. Background Art

[0002] Composite board is a kind of man-made board with wood shavings or fiber materials as the core and veneers glued on both sides. The composite board usually refers to the structural man-made board with oriented strand board as the core and veneer as the surface. Wood composite board is a laminated structural board made by gluing two thin surface boards to a thicker core layer. The surface boards are separated, which not only ensures greater rigidity, but also does not require more material. The core layer of the composite board can be made of small wood block panels, particle boards, veneer honeycomb structures or other lightweight wood.

[0003] The composite board as a whole is composed of two or more materials. In fact, the concept and production method of composite boards are different for boards of different materials. With the rapid development of the national economy and the emergence of various new technologies and new industries, the demand for engineering materials with various properties is becoming more and more extensive. The application field of single metal materials is greatly restricted due to the limitation of natural resources or insufficient comprehensive performance. In this case, the research, production and application of composite materials are increasingly showing their important position.

[0004] At present, the overall production process of existing composite panels is relatively complicated, which not only increases the labor intensity of operators, but also reduces the overall performance of composite panels. For example, tensile stress, tensile strength, tensile yield strength, elongation at break, tensile elastic modulus, bending modulus, etc. are all poor, and defects such as cracking and deformation are very likely to occur, which greatly limits the development and application of composite panels. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a composite board with good bending resistance. The overall design of the composite board is reasonable and the structure is simple. The core layer bending resistance structure can effectively improve the overall performance of the composite board, and can effectively improve the tensile strength and deformation resistance of the composite board. It is not easy to cause the composite board to crack and deform, which is conducive to the development and application of the composite board.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A composite plate with good bending resistance, characterized by comprising a composite plate body;

[0008] The composite board body comprises a surface board and a bottom board, and a core layer bending resistance structure is arranged between the surface board and the bottom board for effectively improving the overall bending resistance of the composite board body.

[0009] In a preferred embodiment of the present invention, the core layer bending-resistant structure includes at least one mesh cloth, a core plate is provided between adjacent mesh cloths, and the core plate is bonded between adjacent mesh cloths.

[0010] In a preferred embodiment of the utility model, the core layer bending-resistant structure includes a layer of mesh cloth, the upper surface of the mesh cloth is bonded to the lower surface of the surface plate through a first adhesive layer, and the lower surface of the mesh cloth is bonded to the upper surface of the bottom plate through a second adhesive layer.

[0011] In a preferred embodiment of the utility model, the core layer bending-resistant structure includes two layers of mesh cloth, namely a first mesh cloth and a second mesh cloth, a core board is bonded between the first mesh cloth and the second mesh cloth, the upper surface of the first mesh cloth is bonded to the lower surface of the surface board through a first adhesive layer, and the lower surface of the second mesh cloth is bonded to the upper surface of the bottom board through a second adhesive layer.

[0012] In a preferred embodiment of the present invention, the mesh cloth is woven from warp threads and weft threads, and the angle between the warp threads and the weft threads is 90° as a whole.

[0013] In a preferred embodiment of the present invention, the mesh size of the mesh cloth is less than 1.5 cm*1.5 cm.

[0014] In a preferred embodiment of the present invention, a glass fiber layer is coated on the outer side of the warp and weft.

[0015] In a preferred embodiment of the present invention, the warp threads include cotton threads, tensile-resistant fibers, flame-retardant fibers and antistatic fibers, and the tensile-resistant fibers, flame-retardant fibers and antistatic fibers are interlaced and wound on the outer peripheral surface of the cotton threads.

[0016] In a preferred embodiment of the present invention, the weft thread comprises silk thread, tensile-resistant fiber, flame-retardant fiber and antistatic fiber, and the tensile-resistant fiber, flame-retardant fiber and antistatic fiber are interlaced and wound on the outer peripheral surface of the silk thread.

[0017] Compared with the prior art, the utility model adopts the above-mentioned structure. The overall design of the composite board is reasonable and the structure is simple. The core layer bending resistance structure can effectively improve the overall performance of the composite board, and can effectively improve the tensile strength and deformation resistance of the composite board. It is not easy to cause the composite board to crack and deform, which is beneficial to the development and application of the composite board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model.

[0020] Figure 2 It is a top view of the first embodiment of the utility model.

[0021] Figure 3 It is a schematic structural diagram of the core layer bending-resistant structure after step-cutting in Example 1 of the utility model.

[0022] Figure 4 This is the first embodiment of the utility model Figure 3 Top view of the .

[0023] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0024] Figure 6 It is a top view of the second embodiment of the present utility model.

[0025] Figure 7 It is a schematic structural diagram of the core layer bending-resistant structure after step-cutting in the second embodiment of the utility model.

[0026] Figure 8 This is the second embodiment of the utility model Figure 3 Top view of the . DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0028] Embodiment 1

[0029] Reference Figure 1-Figure 4 As shown in the figure, a composite plate with good bending resistance is provided, including a composite plate body.

[0030] The composite board body comprises a surface board 100 and a bottom board 200 , and a core layer bending-resistant structure 300 is provided between the surface board 100 and the bottom board 200 for effectively improving the overall bending-resistant performance of the composite board body.

[0031] The core layer bending-resistant structure 300 includes at least one mesh cloth 310 , and a core plate is provided between adjacent mesh cloths 310 . The core plate is bonded between adjacent mesh cloths 310 . This structure can effectively improve the overall performance of the composite board.

[0032] The core layer anti-bending structure 300 includes a layer of mesh cloth 310, the upper surface of the mesh cloth 310 is bonded to the lower surface of the surface board 100 through a first adhesive layer 320, and the lower surface of the mesh cloth 310 is bonded to the upper surface of the bottom board 200 through a second adhesive layer 330. This structure effectively improves the stability performance between the surface board 100, the core layer anti-bending structure 300 and the bottom board 200.

[0033] The mesh cloth 310 is woven from warp and weft, and the angle between the warp and weft is 90° as a whole. This structure effectively improves the tensile strength and bending resistance of the composite board, makes it less likely for the composite board to crack and deform, and further improves the service life of the composite board.

[0034] The mesh size of the mesh cloth 310 is less than 1.5 cm*1.5 cm, and a glass fiber layer is coated on the outside of the warp and weft. This structure not only reduces the overall weight of the composite board, but also further improves the tensile strength of the composite board.

[0035] The warp threads include cotton threads, tensile-resistant fibers, flame-retardant fibers and antistatic fibers, and the tensile-resistant fibers, flame-retardant fibers and antistatic fibers are interlaced and wound on the outer peripheral surface of the cotton threads.

[0036] The weft thread comprises silk thread, tensile-resistant fiber, flame-retardant fiber and antistatic fiber, and the tensile-resistant fiber, flame-retardant fiber and antistatic fiber are interlaced and wound on the outer peripheral surface of the silk thread.

[0037] Embodiment 2

[0038] Reference Figure 5-Figure 8 As shown, the difference between the second embodiment and the first embodiment is that the number of core layer bending-resistant structure layers is different.

[0039] The core layer bending-resistant structure 400 includes two layers of mesh cloth, namely a first mesh cloth 410 and a second mesh cloth 420. A core board 430 is bonded between the first mesh cloth 410 and the second mesh cloth 420. The upper surface of the first mesh cloth 410 is bonded to the lower surface of the surface board 100 through a first adhesive layer 440, and the lower surface of the second mesh cloth 420 is bonded to the upper surface of the bottom board 200 through a second adhesive layer 450.

[0040] The utility model also discloses a method for preparing a composite plate with good bending resistance, which is characterized in that the preparation method comprises the following steps:

[0041] Step 1: Cutting

[0042] According to production requirements, the surface plate, bottom plate and mesh cloth are cut to the size required for production, and the length and width of the surface plate, bottom plate and mesh cloth are the same;

[0043] The second step: pressing

[0044] The bottom plate obtained by the first step is placed on the lower die of the high-pressure press, and then the first adhesive layer is sprayed on the upper surface thereof, and then the mesh cloth is placed on the first adhesive layer, and then the second adhesive layer is sprayed on the surface of the mesh cloth, and finally the surface layer edge is placed on the second adhesive layer, and the edges of the surface plate, the bottom plate and the mesh cloth are aligned, and then the high-pressure press is started to work, so that the upper die and the lower die are matched, and the surface plate, the mesh cloth and the bottom plate are pressed together to form a composite plate with good bending resistance;

[0045] The third step: shaping and polishing

[0046] The composite board that has completed the second step is shaped and polished, and the burrs around it are polished;

[0047] Step 4: Storage.

[0048] Subsequently, the composite board can be used to manufacture the required products, such as wooden floors. The wooden floors manufactured using the composite board have good overall tile and bending resistance, and are not prone to cracking and tile deformation.

[0049] To sum up, the utility model adopts the above-mentioned structure. The overall design of the composite board is reasonable and the structure is simple. The core layer bending resistance structure can effectively improve the overall performance of the composite board, and can effectively improve the tensile strength and deformation resistance of the composite board. It is not easy to cause the composite board to crack and deform, which is beneficial to the development and application of the composite board.

[0050] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A composite sheet with good bending resistance, characterized in that: including a composite sheet body; The composite board body comprises a surface board and a bottom board, and a core layer bending resistance structure is provided between the surface board and the bottom board to effectively improve the overall bending resistance of the composite board body; The core layer bending-resistant structure comprises at least one mesh cloth, a core plate is arranged between adjacent mesh cloths, and the core plate is bonded between adjacent mesh cloths; The core layer bending-resistant structure comprises a layer of mesh cloth, the upper surface of the mesh cloth is bonded to the lower surface of the surface plate through a first bonding layer, and the lower surface of the mesh cloth is bonded to the upper surface of the bottom plate through a second bonding layer; The core layer bending-resistant structure comprises two layers of mesh cloth, namely a first mesh cloth and a second mesh cloth, a core board is bonded between the first mesh cloth and the second mesh cloth, an upper surface of the first mesh cloth is bonded to a lower surface of the surface board through a first bonding layer, and a lower surface of the second mesh cloth is bonded to an upper surface of the bottom board through a second bonding layer; The mesh cloth is woven from warp and weft, and the angle between the warp and weft is 90° as a whole; The mesh size of the mesh cloth is less than 1.5cm*1.5cm; The outer sides of the warp threads and the weft threads are coated with glass fiber layers.

2. A composite sheet material with good bending resistance as claimed in claim 1, characterized in that: The warp threads include cotton threads, tensile-resistant fibers, flame-retardant fibers and antistatic fibers, and the tensile-resistant fibers, flame-retardant fibers and antistatic fibers are interlaced and wound on the outer peripheral surface of the cotton threads.

3. A composite sheet material with good bending resistance as claimed in claim 1, characterized in that: The weft thread comprises silk thread, tensile-resistant fiber, flame-retardant fiber and antistatic fiber, and the tensile-resistant fiber, flame-retardant fiber and antistatic fiber are interlaced and wound on the outer peripheral surface of the silk thread.

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