Lightweight wood composite interlayer artificial board
By using the design of the staggered solid wood block sandwich layer and the filled composite foam material in the artificial board, combined with the vertical setting of the wood grain direction, the problems of non-renewable, high energy consumption and poor strength of artificial board materials in the prior art are solved. , achieving lightweight, high-strength, environmentally friendly and thermal insulation effects.
Patent Information
- Application Number
- CN202421274237.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The materials of artificial boards in the prior art are mainly non-renewable and high-energy consumption polymers and metals, and the structure of wood artificial boards is mostly flat boards, and the preparation process is ordinary, resulting in limited material sources and poor strength.
The design of lightweight wooden composite sandwiched panels is adopted. The sandwich layer is arranged in an interlaced manner by multiple vertical solid wood blocks, and the composite foam material is filled in the interval. The wood grain directions of the upper and lower panels and the sandwich layer are arranged perpendicular to each other. Increase support strength.
It has realized a lightweight and high-strength wooden composite sandwich structure, which has the advantages of environmental protection, thermal insulation, and stable and solid structure, and overcomes the problems of limited source of materials and poor strength in the prior art.
Smart Images
Figure CN222495716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building materials, and in particular to a lightweight wood composite sandwich artificial board. Background Art
[0002] At present, the use of low-carbon and sustainable building materials has become the theme of the times. Reducing the weight of building materials is an important way to save energy. Sandwich structural materials are a kind of lightweight and high-strength materials with great application prospects. As a typical representative of high-efficiency and energy-saving composite materials and their structures, they have many advantages such as light weight, high specific strength and specific stiffness, good stability, good thermal insulation and so on. Currently, widely used lightweight structural materials include polymers and some metals, such as aluminum. Due to their advantages of low density and easy processing, they can be made into lightweight structural materials of various sizes and shapes through different molding methods such as extrusion, casting and injection molding. However, they have the disadvantages of being non-renewable and having high processing energy consumption. Therefore, it is necessary to develop more green and sustainable low-carbon materials to reduce the environmental cost and energy consumption cost of petrochemical plastics.
[0003] Wood resources are in large reserves and low in price. They also have the advantages of high strength-to-weight ratio, outstanding heat insulation and sound absorption, and good seismic resistance. With the introduction of concepts such as low carbon, environmental protection, renewable, and sustainable development, wood engineering materials have received widespread attention. Through continuous innovation in wood processing technology, the durability of wood has been greatly increased, and the development of gluing technology has transformed solid wood materials into wood engineering materials with stable structures and enhanced performance. Rationally utilizing the natural properties of wood, improving the utilization value and application fields of wood materials, and conducting research and optimization design of wood engineering materials have important practical significance and wide application needs.
[0004] However, the existing wood-based panels have the following technical defects: (1) The materials of the existing wood-based panels are mainly polymers and some metals, such as aluminum, which are non-renewable and have high processing energy consumption, which leads to the limited source of wood-based panels in the existing technology; (2) The existing wood-based panels are mostly flat-plate structures, and there are few wood-based panels with wood as the inner core, which limits the application scope of wood-based panels. (3) The preparation process of the existing wood-based panels is ordinary, so the strength is poor. Utility Model Content
[0005] The purpose of the utility model is to provide a lightweight wood composite sandwich artificial board. The utility model reduces the weight and improves the supporting strength based on the characteristics of recyclability, has the advantages of environmental protection, light weight, material saving and high supporting strength, and can be used in building materials.
[0006] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.
[0007] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a lightweight wood composite sandwich artificial board, which includes an upper panel layer, a sandwich layer and a lower panel layer from top to bottom; wherein the sandwich layer is composed of a plurality of vertical solid wood blocks arranged in an alternating manner; the upper and lower end surfaces of the sandwich layer are respectively fixedly connected to the upper panel layer and the lower panel layer via an adhesive layer.
[0008] Furthermore, the upper panel layer is a compressive stress resistant surface layer, and the wood grain direction of the upper panel layer is perpendicular to the wood grain direction of the solid wood block.
[0009] Furthermore, the wood grain direction of the solid wood block is perpendicular to the wood grain direction of the lower panel layer.
[0010] Furthermore, there are spaces between adjacent solid wood blocks in the sandwich layer; and the spaces are filled with composite foaming material.
[0011] Furthermore, the size of the space between the partitions is equal to the volume of the solid wood block.
[0012] Further, the solid wood block is constructed in a polygonal prism shape.
[0013] Further, the solid wood block is constructed as a triangular prism;
[0014] Among them, the cross-section shape of the solid wood block is a triangle.
[0015] Furthermore, the solid wood block is constructed as a quadrangular prism.
[0016] Among them, the cross-section shape of the solid wood block is a quadrilateral.
[0017] Furthermore, the solid wood block is constructed as a hexagonal prism
[0018] Among them, the cross-section shape of the solid wood block is hexagonal.
[0019] Furthermore, the material of the bonding layer is a cold-setting adhesive.
[0020] Compared with the prior art, the utility model has the following beneficial effects:
[0021] 1. By combining the stability of different shapes, a lightweight, high-strength functional wood composite sandwich structure artificial board is obtained, which has the advantages of light weight and high strength, and compared with other materials, wood is more environmentally friendly.
[0022] 2. By filling the interval of the third composite layer with composite foam material, the artificial board can have better thermal insulation properties.
[0023] 3. The present application uses lightweight solid wood sawn timber as the structural base material, and utilizes the high strength of wood along the grain to use it as a load-bearing core layer. The assembly of the sandwich structure mainly adopts the staggered arrangement of solid wood, and the lightweight and high-strength sandwich structure is filled with composite foaming materials, making the artificial board green and environmentally friendly, with a stable and firm structure, and has the advantages of light weight, high strength, and thermal insulation.
[0024] 4. Taking advantage of the high strength along the grain of the material, the wood grains of the upper panel layer and the sandwich layer are perpendicular to each other, and the wood grains of the sandwich layer and the lower panel layer are perpendicular to each other, so as to increase the supporting strength of the artificial board. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.
[0026] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.
[0027] In the attached picture:
[0028] Figure 1 is an overall schematic diagram according to Embodiment 1 of the present application;
[0029] Figure 2 It is a structural schematic diagram of a part of the first embodiment, mainly showing the arrangement of solid wood blocks;
[0030] Figure 3 is an overall schematic diagram according to the second embodiment of the present application;
[0031] Figure 4 It is an overall schematic diagram according to the third embodiment of the present application.
[0032] Reference numerals:
[0033] 100. Lightweight wood composite sandwich panels;
[0034] 101, upper panel layer;
[0035] 102, bonding layer;
[0036] 103, sandwich layer; 103a, partition; 103b, solid wood block;
[0037] 105, lower panel layer;
[0038] 106. Composite foam material. DETAILED DESCRIPTION
[0039] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0040] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0041] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0042] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0043] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0044] Embodiment 1
[0045] Reference Figure 1-2 The lightweight wood composite sandwich artificial board 100 comprises: an upper panel layer 101, a sandwich layer 103, and a lower panel layer 105; the upper panel layer 101 is located at the top and serves as a compressive stress resistant surface layer; the sandwich layer 103 is fixedly connected to the lower end surface of the upper panel layer 101 through an adhesive layer 102, and the sandwich layer 103 is composed of a plurality of vertical solid wood blocks 103b arranged in a staggered manner; the lower panel layer 105 is fixedly connected to the bottom of the sandwich layer 103 through an adhesive layer 102.
[0046] The adhesive used in the adhesive layer 102 is a cold-setting adhesive, and the bonding method is cold pressing.
[0047] The upper panel layer 101, the sandwich layer 103, and the lower panel layer 105 are all made of solid wood, and the upper panel layer 101 and the lower panel layer 105 are made of poplar veneer, and the sandwich layer 103 uses lightweight wood as the base material.
[0048] The wood grain direction of the upper panel layer 101 and the wood grain direction of the core layer 103 are perpendicular to each other.
[0049] The wood grain direction of the lower plate layer 105 and the wood grain direction of the core layer 103 are perpendicular to each other.
[0050] The solid wood blocks 103 b are arranged in a staggered manner, and there is a gap 103 a between adjacent solid wood blocks 103 b . The space size of the gap 103 a is equal to the volume size of the solid wood block 103 b , and the gap 103 a is filled with a composite foam material 106 .
[0051] The solid wood block 103b is constructed in a polygonal prism shape, and the solid wood block 103b is cut so that the cross-sectional shape of the solid wood block 103b is changed.
[0052] The solid wood block 103b is constructed in the shape of a triangular prism, and the cross-section of the solid wood block 103b is a triangle.
[0053] This embodiment uses lightweight solid wood sawn timber as the structural base material, and utilizes the high strength of wood along the grain to use it as a load-bearing sandwich layer. The assembly of the sandwich structure mainly adopts the staggered arrangement of solid wood, and the lightweight and high-strength sandwich structure is filled with composite foaming material, so that the artificial board is green and environmentally friendly, the structure is stable and firm, and it has the advantages of light weight, high strength, and thermal insulation.
[0054] Embodiment 2
[0055] Reference Figure 3 The solid wood block 103b is constructed as a quadrangular prism, and the cross-sectional shape of the solid wood block 103b is a quadrilateral.
[0056] The solid wood blocks 103 b are arranged in a quadrilateral array shape, and a space 103 a is provided at the center of a single array group of the solid wood blocks 103 b , and the composite foam material 106 is filled in the space 103 a .
[0057] Embodiment 3
[0058] Reference Figure 4 The solid wood block 103b is constructed as a hexagonal prism, and the cross-section shape of the solid wood block 103b is a hexagon.
[0059] The solid wood blocks 103 b are arranged in a hexagonal array shape, and a space 103 a is provided at the center of a single array group of the solid wood blocks 103 b , and the composite foam material 106 is filled in the space 103 a .
[0060] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.
Claims
1. A lightweight wood composite sandwich panel, characterized in that: From top to bottom, it includes an upper panel layer (101), a sandwich layer (103) and a lower panel layer (105); wherein the sandwich layer (103) is composed of a plurality of vertical solid wood blocks (103b) arranged in a staggered manner; and the upper and lower end surfaces of the sandwich layer (103) are respectively fixedly connected to the upper panel layer (101) and the lower panel layer (105) via an adhesive layer (102).
2. The lightweight wood composite sandwich panel according to claim 1, characterized in that: The upper panel layer (101) is a compressive stress resistant surface layer, and the wood grain direction of the upper panel layer (101) is perpendicular to the wood grain direction of the solid wood block (103b).
3. The lightweight wood composite sandwich panel according to claim 2, characterized in that: The wood grain direction of the solid wood block (103b) is perpendicular to the wood grain direction of the lower panel layer (105).
4. The lightweight wood composite sandwich panel according to claim 1, characterized in that: There is a gap (103a) between adjacent solid wood blocks (103b) in the sandwich layer (103); the gap (103a) is filled with composite foam material.
5. The lightweight wood composite sandwich panel according to claim 4, characterized in that: The space size of the interval (103a) is equal to the volume size of the solid wood block (103b); Wherein, the spatial shape of the interval (103a) is the same as the shape of the solid wood block (103b).
6. The lightweight wood composite sandwich panel according to claim 1, characterized in that: The solid wood block (103b) is constructed in the shape of a polygonal prism.
7. The lightweight wood composite sandwich panel according to claim 6, characterized in that: The solid wood block (103b) is constructed in the shape of a triangular prism; Wherein, the cross-sectional shape of the solid wood block (103b) is a triangle.
8. The lightweight wood composite sandwich panel according to claim 6, characterized in that: The solid wood block (103b) is constructed in the shape of a quadrangular prism. Wherein, the cross-sectional shape of the solid wood block (103b) is a quadrilateral.
9. The lightweight wood composite sandwich panel according to claim 6, characterized in that: The solid wood block (103b) is constructed in the shape of a hexagonal prism. Wherein, the cross-sectional shape of the solid wood block (103b) is a hexagon.
10. The lightweight wood composite sandwich panel according to claim 1, characterized in that: The material of the bonding layer (102) is a cold-setting adhesive.