Wood beam suitable for being prepared from small-diameter fast growing wood and preparation method of wood beam

Abstract

The invention belongs to the technical field of batten preparation, and discloses a batten suitable for being prepared from small-diameter fast growing wood and a preparation method of the batten, a batten main body structure of the batten comprises a plurality of main wood blanks, and a batten filling-in structure comprises a plurality of auxiliary wood blanks; each outer surface of any second main wood blank is bonded with one outer surface of one second main wood blank or one outer surface of one first main wood blank in a matched mode, and the outer surface, not bonded with the second main wood blank, of each first main wood blank is bonded with one outer surface of one auxiliary wood blank in a matched mode. The preparation method comprises the following steps that S10, wood is subjected to defect removal, and wood subjected to defect removal is obtained; s20, the wood subjected to defect removal is sliced into a main wood blank and an auxiliary wood blank; and S30, after the outer surface of the main wood blank is coated with glue, the main wood blank is assembled in a mold and then pressed, and the batten can be formed after the glue is completely cured. The use requirement of wood can be lowered, and sustainable development of wood resources can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of timber preparation technology, specifically relating to a timber preparation method suitable for using small-diameter fast-growing timber. Background Technology

[0002] Timber is an indispensable resource in human life, widely used in construction, furniture manufacturing, papermaking, and energy. However, as human demand for timber continues to grow, natural forest resources are shrinking, threatening the sustainability of timber resources.

[0003] In wood processing, the larger the diameter of the wood, the easier it is to process; the smaller the diameter, the more difficult it is to process or the higher the processing cost. Taking veneer production as an example, when using the rotary cutting method to manufacture veneer, the required wood diameter is usually not less than 10cm, and defects such as knots and rot will also appear in the veneer. This means that when using veneer to make plywood or veneer later, a repair process is required to treat knots and rot.

[0004] In most cases, tree diameter is positively correlated with age; that is, as trees age, their diameter gradually increases. However, trees have a long growth cycle, and the diameter increase each year is limited. Therefore, as timber is consumed, large-diameter timber becomes increasingly scarce. Some tree species stop increasing in diameter after reaching a certain age, but their smaller diameters have lower utilization value, leaving them to rot and die, resulting in resource waste. Therefore, it is necessary to study the technology of using small-diameter, fast-growing timber for timber preparation. Summary of the Invention

[0005] The purpose of this invention is to provide a timber square suitable for preparation using small-diameter fast-growing timber and its preparation method, so as to solve the above-mentioned problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: On one hand, the present invention provides a timber square suitable for preparation using small-diameter fast-growing timber, including a main timber square structure and a timber square leveling structure for leveling each surface of the main timber square structure. The main timber square structure includes multiple main timber blanks whose outer surfaces have been treated by peeling, removing knots and removing decay, and the cross-section of the main timber blanks is a regular polygonal structure. The timber square leveling structure includes multiple auxiliary timber blanks whose outer surfaces have been treated by peeling, removing knots and removing decay, and the cross-section of the auxiliary timber blanks is a polygonal structure. Among them, the main timber blanks located at the edge of the main timber structure are the first main timber blanks, and the remaining main timber blanks are the second main timber blanks. Each outer surface of any second main timber blank is matched and bonded to an outer surface of a second main timber blank or an outer surface of a first main timber blank. Each outer surface of a first main timber blank that is not bonded to a second main timber blank is matched and bonded to an outer surface of an auxiliary timber blank.

[0007] As a preferred technical solution of the present invention, the cross-section of the main timber blank is a regular hexagonal structure.

[0008] As a preferred technical solution of the present invention, the auxiliary wood blank includes a first auxiliary wood blank and a second auxiliary wood blank, wherein the cross-section of the first auxiliary wood blank is a triangular structure and the cross-section of the second auxiliary wood blank is a quadrilateral structure.

[0009] As a preferred technical solution of the present invention, the auxiliary wood blank further includes a third auxiliary wood blank, the cross-section of which is hexagonal.

[0010] On the other hand, the present invention also provides a method for preparing the timber according to any one of the above claims, comprising the following steps: S10. After classifying the wood by tree species and diameter, remove the bark, knots and decay to obtain the defect-free wood; S20. Plane the defect-removed timber into the required main timber blanks and auxiliary timber blanks; S30. After applying glue to the outer surface of the main timber blanks, they are assembled in a mold. All the main timber blanks are glued together to form the main timber structure. The edges of the main timber structure are filled with auxiliary timber blanks. After the assembly is completed, the timber is pressed and the glue is fully cured to form a timber square of the predetermined size.

[0011] As a preferred technical solution of the present invention, in step S30, the outer surfaces of the auxiliary wood blanks and the main wood blanks that are bonded to each other are also treated with adhesive.

[0012] Beneficial Effects: This invention uses main timber blanks with regular polygonal cross-sections bonded together to form the main timber structure. Auxiliary timber blanks are then used to fill in the edges of the main timber structure, forming timber squares of predetermined dimensions. The manufacturing process is simple, reduces the requirements for timber usage, and allows for the widespread application of small-diameter fast-growing timber, contributing to the sustainable development of timber resources. It also promotes the development of the artificial cultivation industry for small-diameter fast-growing timber, increases timber yield, reduces timber usage costs, and avoids defects such as knots and decay in the prepared wood products. This facilitates automated production that is unmanned, dust-free, and waste-free. Specifically, this invention can prepare timber squares according to actual needs. The resulting timber squares can be used to process veneer, solid wood boards, or other wood products. The bark and knots removed during the process can be processed into biomass fuel after crushing and granulation. The sawdust produced during the sawing of timber segments can be used to process particleboard or MDF. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the end face of the timber in this invention; Figure 2 This is a three-dimensional schematic diagram of the timber used in this invention.

[0014] In the diagram: 1-Main timber blank; 2-First auxiliary timber blank; 3-Second auxiliary timber blank. Detailed Implementation

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0016] Example: like Figure 1 and Figure 2As shown, this embodiment provides a timber square suitable for preparation using small-diameter fast-growing timber, including a main timber square structure located in the central area and a timber square leveling structure located in the edge area, mainly used to level each surface of the main timber square structure. The main timber square structure includes multiple main timber blanks 1 whose outer surfaces have been treated by peeling, removing knots, and removing decay. This eliminates the need for separate treatment of the outer surface of the main timber blanks 1 after the timber square is prepared. The cross-section of the main timber blanks 1 is a regular polygon structure, preferably all main timber blanks 1 are regular polygon structures with equal side lengths. This allows for the design of a single specification of main timber blanks 1, simplifying their production. The timber square leveling structure includes multiple auxiliary timber blanks whose outer surfaces have been treated by peeling, removing knots, and removing decay. This eliminates the need for separate treatment of the outer surface of the timber square leveling structure after the timber square is prepared. The cross-section of the auxiliary timber blanks is a polygon structure, facilitating the matching and bonding of the auxiliary timber blanks with the main timber blanks 1, thereby ensuring the compact structure of the final timber square.

[0017] Among them, the main timber blank 1 located at the edge of the main timber structure is the first main timber blank, and the remaining main timber blanks 1 are the second main timber blanks. Each outer surface of any second main timber blank is matched and bonded to an outer surface of a second main timber blank or an outer surface of a first main timber blank, thereby ensuring that the main timber structure is completed by bonding the main timber blanks 1. The outer surface of each first main timber blank that is not bonded to a second main timber blank is matched and bonded to an outer surface of an auxiliary timber blank. The auxiliary timber blanks are used to fill the edge of the main timber structure to form timber of predetermined specifications and dimensions.

[0018] This invention uses main timber blanks (1) with regular polygonal cross-sections bonded together to form the main timber structure. Auxiliary timber blanks are then used to fill in the edges of the main timber structure, forming timber squares of predetermined dimensions. The manufacturing process is simple, reduces the requirements for timber usage, and allows for the widespread application of small-diameter fast-growing timber, promoting the sustainable development of timber resources. It also promotes the development of the artificial cultivation industry for small-diameter fast-growing timber, increases timber yield, reduces timber usage costs, and avoids defects such as knots and decay in the prepared wood products. This facilitates automated production that is unmanned, dust-free, and waste-free. Specifically, this invention can prepare timber squares according to actual needs. The resulting timber squares can be used to process veneer, solid wood boards, or other wood products. The veneer and knots produced during the removal of bark and knots can be processed into biomass fuel after crushing and granulation. The sawdust produced during the sawing process can be used to process particleboard or MDF.

[0019] As a preferred embodiment of this invention, it should be further explained that the main timber blank 1 has a regular hexagonal cross-section. A regular hexagon is the most economical shape; processing a circle into a regular hexagon results in a material utilization rate of approximately 82.7%. Correspondingly, the auxiliary timber blanks include a first auxiliary timber blank 2 and a second auxiliary timber blank 3. The first auxiliary timber blank 2 has a triangular cross-section, and the second auxiliary timber blank 3 has a quadrilateral cross-section. Figure 1 As shown, depending on the actual location and needs, different cross-sections of the first auxiliary timber blank 2 or the second auxiliary timber blank 3 can be selected. By reasonably matching auxiliary timber blanks of different shapes, the surface of the timber can be kept flush, which not only improves the overall utilization rate of the material, but also enhances the compressive strength and durability of the timber.

[0020] Furthermore, as a preferred embodiment of this example, it should be further explained that, for finished timber squares of different specifications and sizes, the auxiliary timber blanks also include a third auxiliary timber blank. The cross-section of the third auxiliary timber blank is a hexagonal structure. By flexibly adjusting the quantity and position of the third auxiliary timber blanks, the surface of the timber square can be kept flush.

[0021] On the other hand, the present invention also provides a method for preparing timber, comprising the following steps: S10. After classifying the timber by tree species and diameter, remove the bark, knots and decay to obtain defect-free timber, so that no further surface treatment is needed after the timber squares are prepared in the later stage. S20. After removing defects, the wood is planed into the required main wood blank 1 and auxiliary wood blank. The auxiliary wood blank is designed according to the specifications and dimensions of the timber and the main wood blank 1 to ensure a perfect match between the auxiliary wood blank and the main wood blank 1 during the timber production process. S30. After applying glue to the outer surface of the main timber blank 1, it is assembled in the mold. The main timber blanks 1 are glued together to form the main timber structure. The edges of the main timber structure are filled with auxiliary timber blanks. After the assembly is completed, it is pressed and the glue is fully cured to form a timber square of the predetermined size.

[0022] As a preferred embodiment of this example, it should be further noted that in step S30, the outer surfaces of the auxiliary wood blank and the main wood blank 1 that are bonded to each other are also treated with adhesive to further improve the bonding effect between the auxiliary wood blank and the main wood blank 1.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A type of timber suitable for preparation using small-diameter fast-growing timber, characterized in that, The main structure includes a timber frame structure and a timber frame leveling structure for leveling each surface of the main timber frame structure. The main timber frame structure includes multiple main timber blanks (1) whose outer surfaces have been treated by peeling, removing knots and removing decay, and the cross section of the main timber blanks (1) is a regular polygonal structure. The timber frame leveling structure includes multiple auxiliary timber blanks whose outer surfaces have been treated by peeling, removing knots and removing decay, and the cross section of the auxiliary timber blanks is a polygonal structure. Among them, the main timber blank (1) located at the edge of the main timber structure is the first main timber blank, and the other main timber blanks (1) are the second main timber blanks. Each outer surface of any second main timber blank is matched and bonded to an outer surface of a second main timber blank or an outer surface of a first main timber blank. Each outer surface of a first main timber blank that is not bonded to a second main timber blank is matched and bonded to an outer surface of an auxiliary timber blank.

2. The timber according to claim 1, characterized in that, The cross-section of the main timber blank (1) is a regular hexagonal structure.

3. The timber according to claim 2, characterized in that, The auxiliary timber blanks include a first auxiliary timber blank (2) and a second auxiliary timber blank (3). The cross-section of the first auxiliary timber blank (2) is a triangular structure, and the cross-section of the second auxiliary timber blank (3) is a quadrilateral structure.

4. The timber according to claim 3, characterized in that, The auxiliary timber blank also includes a third auxiliary timber blank, the cross-section of which is hexagonal.

5. A method for preparing timber as described in any one of claims 1-4, characterized in that, Includes the following steps: S10. After classifying the wood by tree species and diameter, remove the bark, knots and decay to obtain the defect-free wood; S20. The defect-removed wood is planed into the required main wood blanks (1) and auxiliary wood blanks; S30. After applying glue to the outer surface of the main timber blank (1), the blank is assembled in the mold. All the main timber blanks (1) are glued together to form the main timber structure. The edges of the main timber structure are filled with auxiliary timber blanks. After the blank is assembled, it is pressed and the glue is completely cured to form a timber square of the predetermined size.

6. The preparation method according to claim 5, characterized in that, In step S30, the outer surfaces of the auxiliary wood blanks and the main wood blanks (1) that are bonded together are also treated with adhesive.

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