A plywood based on environment-friendly glue connection

Abstract

This utility model relates to the field of plywood technology, specifically disclosing a plywood based on environmentally friendly adhesive bonding, including a longitudinal toughness layer, with transverse toughness layers attached to both outer surfaces of the longitudinal toughness layer, and longitudinal grooves uniformly formed on the outer surfaces of the longitudinal toughness layer and the fiberglass layer. This plywood based on environmentally friendly adhesive bonding, through the longitudinal and transverse grooves on the surfaces of the longitudinal toughness layer and the fiberglass layer, and the longitudinal protrusions and longitudinal grooves on the surfaces of the transverse toughness layer and the cork layer, allows the longitudinal and transverse protrusions and grooves to interlock. After the environmentally friendly adhesive layer is applied to the surfaces of the longitudinal and transverse toughness layers, the fiberglass layer, the cork layer, and the face layer, and then pressed, the longitudinal and transverse protrusions and grooves provide positioning, preventing unevenness in the finished plywood and reducing waste of materials in subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of plywood technology, specifically to a plywood based on environmentally friendly adhesive bonding. Background Technology

[0002] As people's demands for home decoration and furniture increase, and as forest resources gradually decrease and their use becomes more restricted, people are increasingly using other wood-based panels to manufacture fixtures. Among these, plywood, particleboard, MDF, rubberwood, and blockboard are all man-made panels. Plywood is generally made by rotary cutting logs into veneers or slicing timber into thin sheets, and then gluing them together with adhesives to form three or more layers of board material. It usually uses an odd number of veneers and is often used in furniture production and manufacturing. It can also be used as a material for making airplanes, ships, trains, automobiles, and packaging boxes. It is made by interlacing multiple layers of boards and pressing them together under heated or unheated conditions. In order to firmly fix the adjacent boards and materials together, a large amount of glue is applied between the boards. However, these boards will shift during pressing, resulting in unevenness after the plywood is pressed. This requires secondary processing to correct the edges and corners when the plywood is reused, which is inconvenient and wasteful of materials. Utility Model Content

[0003] The purpose of this invention is to provide a plywood based on environmentally friendly adhesive bonding, so as to solve the problem of material waste caused by secondary processing during plywood manufacturing as mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plywood based on environmentally friendly adhesive bonding, comprising a longitudinal toughness layer, transverse toughness layers attached to both outer surfaces of the longitudinal toughness layer, a fiberglass layer attached to one end of the transverse toughness layer away from the longitudinal toughness layer, and a cork layer attached to one end of the fiberglass layer away from the transverse toughness layer. Longitudinal protrusions are uniformly formed on the outer surfaces of the transverse toughness layer and the cork layer. Longitudinal grooves are uniformly formed on the outer surfaces of the longitudinal toughness layer and the fiberglass layer, and the longitudinal grooves engage with the longitudinal protrusions. Transverse grooves are formed on the outer surfaces of the longitudinal toughness layer and the fiberglass layer. Transverse protrusions are uniformly formed on one end of the outer surface of the transverse toughness layer and another cork layer, and the transverse protrusions engage with the transverse grooves.

[0005] Preferably, an environmentally friendly adhesive layer is applied between the longitudinal toughness layer, the transverse toughness layer, the glass fiber layer, and the cork layer by a roller.

[0006] Using the above technical solution, the environmentally friendly adhesive layer uses water-based polymer isocyanate adhesive, which makes the longitudinal toughness layer, transverse toughness layer, glass fiber layer and cork layer more firmly bonded, and will not delaminate in humid environments and will not release harmful gases.

[0007] Preferably, the outer surfaces of the longitudinal toughness layer, the transverse toughness layer, the glass fiber layer, and the cork layer are uniformly provided with a rough layer.

[0008] By adopting the above technical solution, the roughened layer set on the outer surface of the longitudinal toughness layer, the transverse toughness layer, the glass fiber layer and the cork layer can be more firmly bonded together, further improving the overall strength and toughness of the plywood after it is manufactured.

[0009] Preferably, the glass fiber layers are respectively disposed on both sides of the longitudinal toughness plate, and the longitudinal toughness plate is not attached to the outer surface of the glass fiber layer.

[0010] By adopting the above technical solution, the mechanical properties, stability and functionality of the board can be significantly improved through the glass fiber layer, thereby enhancing the strength and resistance to deformation of the plywood.

[0011] Preferably, the cork layers are respectively disposed on both sides of the longitudinal toughness layer, and the longitudinal toughness layer is not attached to the outer surface of the cork layer.

[0012] By adopting the above technical solution, the cork layer can increase the sound insulation effect and cushion fallen items, thereby reducing the damage caused by impact to the board or items and reducing the transmission of spatial noise.

[0013] Preferably, a panel layer is attached and fixed to the outer surface of the cork layer away from the glass fiber layer, and the surface of the panel layer is sprayed with a wear-resistant coating layer.

[0014] By adopting the above technical solution, the wear resistance of the panel layer can be increased and the service life of the panel layer can be extended.

[0015] Preferably, a waterproof coating layer is sprayed or brushed onto the outer surface of the wear-resistant coating layer at the end away from the panel layer, and the waterproof coating layer is respectively coated on the side surfaces of the longitudinal toughness layer, the transverse toughness layer, the glass fiber layer, the cork layer and the panel layer.

[0016] By adopting the above technical solution, the use of a waterproof coating layer can effectively shield the longitudinal toughness plywood, transverse toughness plywood, fiberglass layer, and cork layer, preventing moisture and external water from entering and soaking into the longitudinal toughness plywood, transverse toughness plywood, fiberglass layer, cork layer, and panel layer, further reducing the deformation, cracking, and damage of plywood caused by moisture and dampness.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the plywood based on environmentally friendly adhesive bonding:

[0018] 1. By using the longitudinal and transverse grooves on the surface of the longitudinal toughness layer and the fiberglass layer, and the longitudinal protrusions and longitudinal grooves on the surface of the transverse toughness layer and the cork layer, the longitudinal protrusions, transverse protrusions, longitudinal grooves and transverse grooves can interlock and connect with each other. After the environmentally friendly adhesive layer is applied to the surface of the longitudinal toughness layer, the transverse toughness layer, the fiberglass layer, the cork layer and the panel layer and pressed, the longitudinal protrusions, transverse protrusions, longitudinal grooves and transverse grooves can limit and guide the plywood, thereby reducing the unevenness after the plywood is pressed and reducing material waste.

[0019] 2. The application of environmentally friendly adhesive layers can bond the longitudinal toughness boards, transverse toughness boards, fiberglass layers, cork layers, and panel layers together. The use of water-based high-molecular isocyanate adhesive in the environmentally friendly adhesive layer, combined with the roughening layer, allows for a stronger adhesion between the longitudinal toughness boards, transverse toughness boards, fiberglass layers, cork layers, and panel layers. This reduces delamination in humid environments and does not release harmful gases, thus improving the safety and durability of the plywood during use.

[0020] 3. The use of a fiberglass layer can significantly improve the mechanical properties, stability, strength, and resistance to deformation of plywood. The cork layer can effectively cushion dropped objects and reduce the transmission of spatial noise. The wear-resistant coating layer applied to the surface of the panel layer can further enhance the wear resistance and service life of the panel layer. Furthermore, the waterproof coating layer applied to the entire surface of the plywood can further reduce the chance of moisture and water entering the plywood and causing deformation and delamination damage, thus further improving the service life and resistance to deformation of the plywood. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the carbonized panel layer and the wear-resistant coating layer of this utility model;

[0022] Figure 2 This is a cross-sectional three-dimensional structural diagram of the longitudinal toughness layer and the transverse toughness layer of this utility model;

[0023] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the glass fiber layer and cork layer of this utility model;

[0024] Figure 4 This is an exploded three-dimensional structural diagram of the longitudinal protrusion and longitudinal groove of this utility model;

[0025] Figure 5This is a cross-sectional three-dimensional structural diagram of the longitudinal toughness layer and the environmentally friendly adhesive layer of this utility model;

[0026] Figure 6 This is a cross-sectional three-dimensional structural diagram of the transverse protrusion and transverse groove of this utility model.

[0027] In the diagram: 1. Longitudinal toughness layer; 2. Transverse toughness layer; 3. Fiberglass layer; 4. Cork layer; 5. Environmentally friendly adhesive layer; 6. Longitudinal protrusion; 7. Transverse protrusion; 8. Longitudinal groove; 9. Transverse groove; 10. Panel layer; 11. Wear-resistant coating layer; 12. Waterproof coating layer; 13. Roughening layer. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 This utility model provides a technical solution: a plywood based on environmentally friendly adhesive bonding, comprising a longitudinal toughness layer 1, transverse toughness layers 2 attached to both outer surfaces of the longitudinal toughness layer 1, a fiberglass layer 3 attached to the end of the transverse toughness layer 2 away from the longitudinal toughness layer 1, and a cork layer 4 attached to the end of the fiberglass layer 3 away from the transverse toughness layer 2. An environmentally friendly adhesive layer 5 is applied by roller between the longitudinal toughness layer 1, the transverse toughness layer 2, the fiberglass layer 3, and the cork layer 4. The outer surfaces of the fiberglass layer 3 and the cork layer 4 are uniformly provided with a rough layer 13. The outer surfaces of the transverse toughness layer 2 and the cork layer 4 are uniformly provided with longitudinal protrusions 6. The outer surfaces of the longitudinal toughness layer 1 and the fiberglass layer 3 are uniformly provided with longitudinal grooves 8, and the longitudinal grooves 8 and the longitudinal protrusions 6 are engaged. The outer surfaces of the longitudinal toughness layer 1 and the fiberglass layer 3 are provided with transverse grooves 9. The outer surfaces of the transverse toughness layer 2 and the other cork layer 4 are uniformly provided with transverse protrusions 7, and the transverse protrusions 7 and the transverse grooves 9 are engaged.

[0030] Firstly, during manufacturing, environmentally friendly adhesive layer 5 needs to be coated on the outer surfaces of the longitudinal toughness layer 1, transverse toughness layer 2, fiberglass layer 3, cork layer 4, and panel layer 10. This allows the longitudinal protrusions 6, transverse protrusions 7, longitudinal grooves 8, and transverse grooves 9 to interlock after the longitudinal toughness layer 1, transverse toughness layer 2, fiberglass layer 3, cork layer 4, and panel layer 10 are spliced ​​together. The roughening layer 13 further strengthens the adhesion between the longitudinal toughness layer 1, transverse toughness layer 2, fiberglass layer 3, cork layer 4, and panel layer 10, providing positioning and limiting. This ensures that when the assembled plywood is placed in the hot press for pressing, the longitudinal toughness layer 1, transverse toughness layer 2, fiberglass layer 3, cork layer 4, and panel layer 10 will not shift or become uneven, improving the uniformity of the pressed plywood and reducing waste caused by secondary processing.

[0031] The fiberglass layer 3 is disposed on both sides of the longitudinal toughness layer 1, and the longitudinal toughness layer 1 is not attached to the outer surface of the fiberglass layer 3. The cork layer 4 is disposed on both sides of the longitudinal toughness layer 1, and the longitudinal toughness layer 1 is not attached to the outer surface of the cork layer 4. The outer surface of the cork layer 4 away from the fiberglass layer 3 is attached and fixed with a panel layer 10, and the surface of the panel layer 10 is sprayed with a wear-resistant coating layer 11.

[0032] Secondly, the use of fiberglass layer 3 and cork layer 4 can further improve the overall mechanical properties, stability, strength and resistance to deformation of the plywood. Cork layer 4 can effectively cushion fallen objects and reduce the transmission of spatial noise. Wear-resistant coating layer 11 can improve the wear resistance and service life of panel layer 10.

[0033] A waterproof coating layer 12 is sprayed or brushed onto the outer surface of the end of the wear-resistant coating layer 11 away from the panel layer 10, and the waterproof coating layer 12 is respectively coated on the side surfaces of the longitudinal toughness layer 1, the transverse toughness layer 2, the fiberglass layer 3, the cork layer 4 and the panel layer 10.

[0034] Furthermore, the application of the waterproof coating layer 12 can effectively prevent external moisture and water from entering the interior of the plywood, reducing the chance of deformation and damage caused by moisture entering the plywood, and further improving the service life and deformation resistance of the plywood.

[0035] Working principle: When manufacturing plywood, environmentally friendly adhesive layer 5 is applied to the outer surfaces of longitudinal toughness layer 1, transverse toughness layer 2, fiberglass layer 3, cork layer 4, and panel layer 10. Then, the longitudinal toughness layer 1, transverse toughness layer 2, fiberglass layer 3, cork layer 4, and panel layer 10 are spliced ​​together so that the longitudinal protrusions 6, transverse protrusions 7, longitudinal grooves 8, and transverse grooves 9 can interlock. The pre-assembled plywood is then placed into a pressing device for pressing. After the plywood is pressed, it is removed and checked for unevenness. Then, wear-resistant coating layer 11 and waterproof coating layer 12 are sprayed onto the surface of panel layer 10. After drying, the manufacturing process is complete.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plywood based on environmentally friendly adhesive bonding, comprising a longitudinal toughness layer (1), wherein transverse toughness layers (2) are attached to both outer surfaces of the longitudinal toughness layer (1), and a fiberglass layer (3) is attached to one end of the transverse toughness layer (2) away from the longitudinal toughness layer (1), and a cork layer (4) is attached to one end of the fiberglass layer (3) away from the transverse toughness layer (2), characterized in that: The outer surfaces of the transverse toughness layer (2) and the cork layer (4) are uniformly provided with longitudinal protrusions (6), the outer surfaces of the longitudinal toughness layer (1) and the glass fiber layer (3) are uniformly provided with longitudinal grooves (8), and the longitudinal grooves (8) engage with the longitudinal protrusions (6). The outer surfaces of the longitudinal toughness layer (1) and the glass fiber layer (3) are provided with transverse grooves (9), and the outer surfaces of the transverse toughness layer (2) and the other cork layer (4) are uniformly provided with transverse protrusions (7), and the transverse protrusions (7) engage with the transverse grooves (9).

2. The plywood based on environmentally friendly adhesive bonding according to claim 1, characterized in that: An environmentally friendly adhesive layer (5) is applied between the longitudinal toughness layer (1), the transverse toughness layer (2), the glass fiber layer (3), and the cork layer (4).

3. The plywood based on environmentally friendly adhesive bonding according to claim 1, characterized in that: The outer surfaces of the longitudinal toughness layer (1), the transverse toughness layer (2), the glass fiber layer (3) and the cork layer (4) are uniformly provided with a rough layer (13).

4. The plywood based on environmentally friendly adhesive bonding according to claim 1, characterized in that: The glass fiber layer (3) is respectively disposed on both sides of the longitudinal toughness plate (1), and the longitudinal toughness plate (1) is not attached to the outer surface of the glass fiber layer (3).

5. A plywood based on environmentally friendly adhesive bonding according to claim 1, characterized in that: The cork layer (4) is respectively disposed on both sides of the longitudinal toughness plate (1), and the longitudinal toughness plate (1) is not attached to the outer surface of the cork layer (4).

6. A plywood based on environmentally friendly adhesive bonding according to claim 1, characterized in that: The cork layer (4) has a panel layer (10) attached and fixed to the outer surface of the side away from the glass fiber layer (3), and the surface of the panel layer (10) is sprayed with a wear-resistant coating layer (11).

7. A plywood based on environmentally friendly adhesive bonding according to claim 6, characterized in that: The wear-resistant coating layer (11) is coated with a waterproof coating layer (12) by a roller on the outer surface of the end away from the panel layer (10), and the waterproof coating layer (12) is coated on the side surfaces of the longitudinal toughness layer (1), the transverse toughness layer (2), the glass fiber layer (3), the cork layer (4) and the panel layer (10).

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