Structural core panel, composite panel with the core panel and method of manufacture

Abstract

The present application relates to the technical field of plate, and particularly relates to a structural core plate, a composite plate with the core plate and a manufacturing method, the structural core plate comprises a plurality of core blocks, the core block comprises two opposite end faces and an outer peripheral surface, at least one groove is arranged on the outer peripheral surface of the core block, the distance between the two end faces of each core block is close to equal or equal, and the plurality of core blocks are arranged in a plane in a way that the outer peripheral surfaces are connected to form the structural core plate. The structural core plate of the present application takes the core block as the main body, forms the plate with the required width through splicing, and the moisture penetrates along the conduit in the axial direction when the humidity changes, so that the size fluctuation in the thickness direction of the structural core plate is extremely small. The core block has a low expansion coefficient, and the conduits are arranged in the axial direction, so that the problems of stress and deformation are essentially avoided from the finished plate.

Description

Technical Field

[0001] This invention relates to the field of sheet metal technology, and specifically to a structural core board, a composite sheet metal with the core board, and a method for manufacturing the same. Background Technology

[0002] There are three main methods for cutting wood: tangential sawing, radial sawing, and notching. Tangential sawing is defined as sawing along the main axis of the trunk, with the cut surface roughly parallel to the annual rings. The advantages of tangential sawing are its simplicity, minimal waste, and cost-effectiveness. The disadvantages are its susceptibility to deformation, with significantly greater shrinkage and expansion (1.5 to 2 times that of radial sawing), and a tendency to warp or twist. Radial sawing is defined as sawing along the radius of the trunk, with the cut surface roughly perpendicular to the annual rings. The advantages of radial sawing are excellent stability (for example, applying pressure directly downwards to the radially cut board is like a log cabin pillar having greater load-bearing capacity and compressive strength than a beam), the lowest deformation rate, minimal shrinkage and expansion, and predominantly straight grain, resulting in a simple and aesthetically pleasing appearance. It is also less prone to warping or twisting, making it the preferred choice for high-end timber. The disadvantages are that it is time-consuming, requires more materials, and has a relatively higher cost. The definition of sawing is to first divide the log into four equal parts, and then saw it at a certain angle to the growth rings. The cut surface is mainly straight or oblique grain. The advantage of sawing is that it combines the stability of radial cutting with a better yield and beautiful texture. The disadvantage is that the processing technology is more complicated and the cost is between that of tangential cutting and radial cutting.

[0003] Boards obtained by tangential and radial cutting are called tangential boards and radial boards, respectively. Traditional plywood and blockboard often use a mixture of tangential and radial boards, which easily generates internal stress due to differences in expansion and contraction in different directions. The larger the board size, the more concentrated the internal stress becomes, and it is prone to warping and cracking along the tangential direction when temperature and humidity change. On the other hand, if only radial boards are used to make plywood and blockboard, the production cost of the boards is high and the price is expensive because it relies on large-diameter logs. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a structural core board and a composite board with the core board, which solves the problems of warping and unevenness that still exist when using tangential boards in existing plywood, blockboard, wood flooring, wood door panels, cabinet door panels, etc., as well as the problems of high cost and high price when using radial boards.

[0005] The technical solution to achieve the above objectives is: This invention provides a structural core board, comprising a plurality of core blocks, each core block having two opposing end faces and an outer peripheral surface, wherein at least one groove is provided on the outer peripheral surface of the core block; The distance between the two end faces of each core block is approximately equal or equal; Multiple core blocks are arranged flush with each other on their outer peripheral surfaces in a plane to form the structural core plate.

[0006] The present invention also provides a structural core board comprising a plurality of core blocks, each core block having two opposing end faces and an outer peripheral surface; the distance between the two end faces of each core block is approximately equal or equal. Multiple core blocks are arranged in a plane with their outer peripheral surfaces aligned and in rows. The multiple core blocks are arranged in at least two rows, and one or two spacer plates with textures perpendicular to the outer peripheral surfaces of the core blocks are sandwiched between two adjacent rows of core blocks to form the structural core plate.

[0007] This invention also provides a composite board with a structural core, comprising: The aforementioned structural core board; A balance plate is applied to the surface of the core plate formed by the end faces of the core blocks.

[0008] This invention also provides a method for manufacturing a structural core board, comprising the following steps: Multiple wooden strips are provided, each wooden strip having two opposing end faces and an outer peripheral surface. At least one groove is provided on the outer peripheral surface of the wooden strip, and the distance between the two end faces of each wooden strip is approximately equal or equal. Multiple wooden strips are spliced ​​together sequentially by joining their outer surfaces to form a spliced ​​board of the required size; Multiple panels are stacked and connected to form a composite unit of the required size; Along the length of the wooden strips, the composite unit is cut according to the required thickness of the structural core board to obtain multiple structural core boards.

[0009] This invention also provides a method for manufacturing a structural core board, comprising the following steps: Multiple wooden strips are provided, each strip having two opposite end faces and an outer peripheral face. The distance between the two end faces of each strip is approximately equal or equal. The multiple wooden strips are sequentially spliced ​​together by splicing their outer peripheral faces to form a splicing board of the required size. Multiple spacers are provided, and the spacers and splicing plates are alternately stacked and connected to form a composite unit of the required size; Along the length of the wooden strips, the composite unit is cut according to the required thickness of the structural core board to obtain multiple structural core boards.

[0010] This invention also provides a method for manufacturing a structural core board, comprising the following steps: Multiple wooden strips are provided, each wooden strip having two opposing end faces and an outer peripheral surface. At least one groove is provided on the outer peripheral surface of the wooden strip, and the distance between the two end faces of each wooden strip is approximately equal or equal. Multiple wooden strips are joined together by splicing their outer surfaces to form a hollow unit group. The unit groups are then sequentially spliced ​​together by splicing their outer surfaces to form a splicing unit of the required size. Multiple splicing units are stacked and connected to form a composite unit of the required size; Along the length of the wooden strips, the composite unit is cut according to the required thickness of the structural core board to obtain multiple structural core boards.

[0011] The beneficial effects of the structural core board and the composite board with the core board of the present invention are as follows: The structural core board of this invention uses core blocks as the main body, which are spliced ​​together to form a board of the required size. The grain or wood texture on the core blocks is aligned with the arrangement of the wood's "water pipes" (conduits) (i.e., the wood grain direction is perpendicular to the surface of the structural core board). When humidity changes, moisture permeates along the axial direction of the conduits, resulting in minimal dimensional fluctuations in the thickness direction of the structural core board. This core block has a low coefficient of thermal expansion and contraction, and the axial arrangement of the conduits essentially avoids stress and deformation problems. Figure 1 The thickness in the Z direction is the thickness of the structural core board, so the core block is relatively small in size and easy to manufacture. Small- to medium-diameter fast-growing timber (such as poplar, fir, pine, birch, eucalyptus, acacia, and privet) can be selected to process core strips (wood strips) of a certain length.

[0012] The ends of the wooden strips are first sawn with transverse grooves, approximately 35% of the groove depth, and then multiple strips are pressed in using suitable paper rope and glue. Figure 5 (215) In the cross-cut groove, form a spliced ​​panel by stringing ropes. Alternatively, drill circular through holes at both ends of the wooden strip, and then insert a wooden strip / or bamboo stick of suitable diameter after applying glue into the wooden strip. Figure 15 (Interlocking Hole 251) Through holes are used to connect the panels. Further, according to the required number of panels based on the product thickness, string ropes or inserting round rods are placed on the top and bottom of the wood strip panels. Glue-coated veneers are then stacked with the wood strip panels in alternating warp and weft directions, layered and bonded together. These layers are then placed in a cold press to press and shape into large blocks. These large blocks are then transversely sawn according to the design thickness using a woodworking band saw or multi-blade saw to obtain grooved structural core panels. This solves the problems of warping, deformation, and high costs associated with using large-diameter logs in existing large-format panels.

[0013] The core block of the structural core board of the present invention is provided with grooves. The function of the grooves is to break the wood fibers and relieve stress. That is, by physically cutting the wood fiber texture, the continuity of stress transmission is broken. The cut wood fibers are the fiber textures on the core block arranged in a direction perpendicular to the two ends of the core block. The setting of the grooves, combined with the high stability and low expansion and contraction coefficient of multiple independent core blocks, can significantly reduce the absorption of the board due to the increase in volume after the board gets damp, or the core block is divided into multiple independent individuals that shrink individually. The overall stress level fundamentally solves the core pain points of wood being prone to deformation and warping and significantly reducing the shrinkage and swelling of wood from a physical perspective.

[0014] The structural core board of the present invention is provided with a spacer plate, which is located between two adjacent rows of core blocks. This not only improves the integrity between the core blocks, but also improves the overall flatness and stability of the structural core board and better reduces the risk of board warping.

[0015] The structural core board of this invention can form through holes between two surfaces by setting through grooves, or through connecting holes by setting beveled / arc edges. These through holes and connecting holes are arranged along the thickness direction of the structural core board, forming a "bridge-like" structure. This "bridge-like" structure can disperse external impact forces, improve the board's creep and fatigue resistance, and prevent deformation and sagging under long-term load. Furthermore, the "bridge-like" structure can reduce the board's weight, achieving lightweighting. The air layer within the "bridge-like" structure can block the lateral conduction of moisture, and combined with the directional expansion and contraction space of the grooves, it can further reduce the risk of deformation caused by localized moisture. The interior of the "bridge-like" structure can also be filled with desiccants, fire-retardant materials, and flame-retardant foaming materials to improve its moisture-proof and fire-resistant performance. The "bridge-like" structure, wood fibers, and grooves form a multi-layered acoustic impedance interface, which can effectively absorb mid-to-high frequency sound waves, significantly improving sound insulation compared to solid boards. Furthermore, by adjusting the density of the "bridge hole" structure, a balance between lightweight and localized high strength can be achieved. For example, solid wood frame strips can be added to the edge of the core board to give the four sides of the board a higher strength structural frame, and it can also ensure that the screws of the hardware accessories have a locking force for secure installation.

[0016] The structural core plate of this invention uses a brick-laying-like arrangement of core blocks. Its core value lies in optimizing stress distribution. The staggered arrangement of the core blocks allows external loads and internal expansion and contraction stresses to be dispersed and transmitted along the misaligned interface, avoiding local stress peaks. The staggered arrangement of the core blocks has a higher flexural modulus of elasticity and shear strength, and can also effectively prevent the propagation of longitudinal cracks.

[0017] The composite board with a structural core board of the present invention has a balancing plate (such as a veneer, artificial board, aluminum plate, or metal plate) covering the upper and lower cut surfaces of the structural core board. The capillaries on the sawn cross-section of the structural core board are axially distributed. When the balancing plate is covered, the bonding material such as polyurethane adhesive can fill the gaps between the capillaries to form a dense bonding layer, which can block water penetration and also restrain the slight expansion and contraction of the core block and the balancing plate, thus resisting the deformation of the board. If the product is used in wooden door products, the aluminum plate or metal balancing plate covering the upper and lower cut surfaces of the structural core board also has flame-retardant, fireproof, and impact-resistant effects.

[0018] The core blocks of this invention can be connected by interlocking with ropes, round wooden dowels, round bamboo sticks, or other connecting parts. Therefore, there is no need to apply glue to the sides of the core blocks and then press them together. This not only reduces the amount of glue used and the risk of releasing harmful substances such as formaldehyde, but also reduces the manpower and curing time required for processes such as gluing, side pressing, planing, and sanding. It also reduces material waste, significantly improving processing efficiency while taking into account environmental protection, quality improvement, and economic production. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the first embodiment of the core board of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of a second embodiment of the core board of the present invention.

[0021] Figure 3 This is a three-dimensional structural schematic diagram of one embodiment of the wooden strips used to make the core blocks in the structural core board of the present invention.

[0022] Figure 4 In order to be in Figure 3 The diagram shows a three-dimensional structure with oblique grooves cut into the wooden strip.

[0023] Figure 5 This is a three-dimensional structural schematic diagram of another embodiment of the wooden strips used to make the core blocks in the structural core board of the present invention.

[0024] Figures 6 to 9 This is a schematic diagram of the structure of the core board of the present invention, in which the outer contour of the core block is square and various styles of grooves are provided on the core block.

[0025] Figure 10 This is a schematic diagram of the structure of the core block of the core board of the present invention, which has a regular octagonal end face and an oblique groove.

[0026] Figures 11 to 14 This is a schematic diagram of the structure of the core board of the present invention, in which the end face of the core block is rectangular and various grooves are provided on the radial core block.

[0027] Figure 15 This is a schematic diagram of the structure of the present invention, which connects the core blocks of the wooden strips through the insertion of connectors.

[0028] Figure 16 This is a three-dimensional structural diagram of the third embodiment of the core board of the present invention.

[0029] Figure 17 for Figure 16 The diagram shows the exploded disintegration structure of the core plate.

[0030] Figure 18 This is a three-dimensional structural schematic diagram of the fourth embodiment of the radial structure core plate of the present invention.

[0031] Figure 19 In order to be in Figure 18 The front view shows the radial core blocks staggered according to the structure shown.

[0032] Figure 20 This is a schematic diagram of the structure of the core block of the core board of the present invention, which has straight grooves and oblique grooves.

[0033] Figure 21 For the reason Figure 20 The diagram shows a three-dimensional structural schematic of the core board (i.e., the fifth embodiment) made from the core block.

[0034] Figure 22 This is a three-dimensional structural diagram of the sixth embodiment of the core board of the present invention.

[0035] Figure 23 In order to be in Figure 22 The main view shows the core blocks with staggered joints based on the structure shown.

[0036] Figure 24 This is a schematic diagram of a structure in which a pair of oblique grooves connected in a V-shape are provided on the core block of the structural core plate of the present invention.

[0037] Figure 25 For the reason Figure 24 The front view of the structural core plate (i.e., the seventh embodiment) made from the shown core block.

[0038] Figure 26 This is a schematic diagram of a core block of the structural core board of the present invention, wherein a pair of connected oblique grooves are provided on a pair of side surfaces and an oblique edge is provided at the corner.

[0039] Figure 27 For the reason Figure 26 The front view of the structural core plate (i.e., the eighth embodiment) made from the shown core block.

[0040] Figure 28 In order to be in Figure 27 Based on this, set the core blocks to staggered joints and remove the main view of the single board between two adjacent core blocks.

[0041] Figure 29 This is a schematic diagram of a structure in which a pair of connected oblique grooves are provided on the four sides of the core block of the structural core board of the present invention.

[0042] Figure 30 For the reason Figure 29 The front view of the structural core plate (i.e., the ninth embodiment) made from the shown core block.

[0043] Figure 31 In order to be in Figure 30 The diagram shows a front view of a structure with veneer or solid wood panels on the top and bottom.

[0044] Figure 32 In order to be in Figure 31 The diagram shows a front view of a single-layer board placed between two core blocks.

[0045] Figure 33 In order to be in Figure 32 Based on this, the main view shows the staggered arrangement of the core blocks.

[0046] Figure 34 This is a schematic diagram of the structure of the core block of the present invention, in which a pair of connected oblique grooves are provided on one pair of sides and a through groove is provided on another pair of sides.

[0047] Figure 35 For the reason Figure 34 The front view of the structural core plate (i.e., the tenth embodiment) made from the shown core block.

[0048] Figure 36 In order to be in Figure 35 The main view shows the staggered arrangement of the core blocks.

[0049] Figure 37 This is a schematic diagram of the structure of the core block of the present invention, in which a through groove and a plurality of inclined grooves are provided on a pair of side surfaces.

[0050] Figure 38 For the reason Figure 37 The front view of the structural core plate (i.e., the eleventh embodiment) made from the shown core block.

[0051] Figure 39 In order to be in Figure 38 Based on the structure shown, the core blocks are staggered and the veneer between adjacent core blocks is removed. Additionally, Figure 39 The diagram shows a front view of a structure with veneer or solid wood panels on the top and bottom.

[0052] Figure 40 In order to be in Figure 39 The front view shows a structure with veneer or solid wood panels placed between the core blocks.

[0053] Figure 41 This is a front view of the twelfth embodiment of the structural core board of the present invention.

[0054] Figure 42 This is a schematic diagram of the structure of the core block of the present invention, which has through grooves and connected inclined grooves on its four sides.

[0055] Figure 43 For the reason Figure 42 The front view of the structural core plate (i.e., the thirteenth embodiment) made from the shown core block.

[0056] Figure 44 In order to be in Figure 43 The main view shows the core blocks with staggered joints based on the structure shown.

[0057] Figure 45 In order to be in Figure 43 The front view shows a single board placed between the core blocks based on the structure shown.

[0058] Figure 46 This is a schematic diagram of the structure of the core block of the present invention, in which a pair of side surfaces are provided with through grooves and a pair of connected oblique grooves, and another pair of side surfaces are provided with oblique grooves.

[0059] Figure 47 For the reason Figure 46 The front view of the core plate made from the shown core block (i.e., the fourteenth embodiment).

[0060] Figure 48 In order to be in Figure 47 The front view shows a single board placed between the core blocks based on the structure shown.

[0061] Figure 49 This is a schematic diagram of the structure of the core block of the present invention, in which through grooves and straight grooves are provided on the four sides.

[0062] Figure 50 For the reason Figure 49 The front view of the structural core plate (i.e., the fifteenth embodiment) made from the shown core block.

[0063] Figure 51 In order to be in Figure 50 The main view shows the core blocks with staggered joints based on the structure shown.

[0064] Figure 52 In order to be in Figure 50 The front view shows a single board placed between the core blocks based on the structure shown.

[0065] Figure 53 A schematic diagram showing the structure of the core block of the present invention with through grooves and multiple grooves on its four sides.

[0066] Figure 54 For the reason Figure 53The front view of the structural core plate (i.e., the sixteenth embodiment) made from the shown core block.

[0067] Figure 55 In order to be in Figure 54 Based on this, the main view shows the staggered arrangement of the core blocks.

[0068] Figure 56 In order to be in Figure 54 This is a structural diagram showing the arrangement of single-board units between the core blocks.

[0069] Figure 57 A schematic diagram of the structure of the core block of the present invention showing through grooves on three sides and a pair of oblique grooves.

[0070] Figure 58 For the reason Figure 57 The front view of the structural core plate (i.e., the seventeenth embodiment) made from the shown core block.

[0071] Figure 59 In order to be in Figure 58 The diagram shows a structure with single-plates arranged between unit bodies.

[0072] Figure 60 This is a schematic diagram of the eighteenth embodiment of the core board of the present invention.

[0073] Figure 61 This is an exploded structural diagram of the first embodiment of the composite board with a structural core plate of the present invention.

[0074] Figure 62 This is an exploded structural diagram of a second embodiment of the composite board with a structural core plate of the present invention.

[0075] Figure 63 This is a structural schematic diagram of the third embodiment of the composite board with a structural core plate of the present invention.

[0076] Figure 64 In order to be in Figure 63 The diagram shows a structure with tenons and mortises on the frame.

[0077] Figure 65 In order to be in Figure 64 The diagram shows a frame made of multi-layer boards.

[0078] Figure 66 In order to be in Figure 63 The diagram shows a structure with wood-grain decorative panels.

[0079] Figure 67 In order to be in Figure 63 Based on this, a structural diagram of another type of decorative panel is provided.

[0080] Figure 68A schematic diagram of another balancing plate for the composite board with structural core plate of the present invention.

[0081] Figure 69 A schematic diagram of the structure of the composite board with a structural core board of the present invention, which is provided with a decorative panel with wood grain.

[0082] Figure 70 This is a structural schematic diagram of the fourth embodiment of the composite board with a structural core plate of the present invention.

[0083] Figure 71 for Figure 70 A schematic diagram of the exploded decomposition structure shown.

[0084] Figure 72 In order to be in Figure 70 The diagram shows an exploded view of the structure with a balance plate added to the structure shown.

[0085] Figure 73 In order to be in Figure 72 An exploded structural diagram showing the addition of a decorative panel based on the structure shown.

[0086] Figure 74 for Figure 73 The diagram shows a partial cross-sectional view of the composite structure.

[0087] Figure 75 This is a partial cross-sectional view of the fifth embodiment of the composite board with a structural core plate of the present invention.

[0088] Figure 76 This is an exploded structural diagram of the sixth embodiment of the composite material with a structural core plate of the present invention.

[0089] Figure 77 This is a structural schematic diagram of the seventh embodiment of the composite board with a structural core plate of the present invention.

[0090] Figure 78 This is a structural schematic diagram of the eighth embodiment of the composite board with a structural core plate of the present invention.

[0091] Figure 79 This is an exploded structural diagram of the ninth embodiment of the composite material with a structural core plate of the present invention.

[0092] Figure 80 In order to be in Figure 79 An exploded structural diagram showing a wood-grain veneer panel added to the structure shown.

[0093] Figure 81 This is a partially exploded structural diagram of the tenth embodiment of the composite board with a structural core plate of the present invention.

[0094] Explanation of reference numerals in the attached figures: 20-Structural core board; 20a-Upper surface; 20b-Lower surface; 21-Core block; 211-End face; 212-Outer peripheral surface; 2121-Beveled edge; 2122-Curved board edge; 213-Groove; 214-Through groove; 215-Connecting groove; 216-Connecting hole; 217-Connecting channel; 22-Partition board; 23-Outer side panel; 24-Matching piece; 25-Wooden strip; 251-Matching hole; 31-Balance board; 311-Outer surface; 33-Decorative panel; 35-Frame strip; 351-Tongue; 352-Mortise and tenon. Detailed Implementation

[0095] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0096] See Figure 1 This invention provides a structural core board, a composite board with the core board, and a manufacturing method thereof. The core board utilizes core blocks as its main body, with grooves formed on the core blocks and / or veneers placed between core blocks in each layer (or row). The arrangement of the core blocks resembles a bricklaying arrangement, achieving a stable foundation for the structure. The grooves relieve stress on the core blocks by breaking the reinforcing bars, physically dispersing the internal stress of the wood. The use of veneers attached to the top and bottom of the core blocks improves the overall integrity between them. Combined with the bricklaying-like staggered arrangement, the internal stress of the wood can be dispersed and transmitted along the misaligned interfaces, avoiding local stress peaks, significantly improving the flexural modulus of elasticity and shear strength, and effectively blocking the propagation path of longitudinal cracks. The structural core board, the composite board with the core board, and the manufacturing method of this invention are described below with reference to the accompanying drawings.

[0097] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0098] See Figure 1 This image shows a three-dimensional structural schematic diagram of a first embodiment of the structural core board of the present invention. The following is in conjunction with... Figure 1 The structure of the core board of the present invention will be described.

[0099] like Figure 1 As shown, the structural core board 20 of the present invention includes a plurality of core blocks 21, combined with Figure 20 As shown, the core block 21 includes two opposing end faces 211 and an outer peripheral face 212. The outer peripheral face 212 of the core block 21 is provided with at least one groove 213. The distance between the two end faces 211 of each core block 21 is approximately equal or equal. Multiple core blocks 21 are arranged in a plane with their outer peripheral faces 212 in contact to form the groove 213 of the structural core plate 20.

[0100] Multiple core blocks 21 arranged in a plane can be arranged along a first direction and a second direction (perpendicular to the first direction), wherein the second direction (i.e., the width direction of the structural core plate 20) is... Figure 1 In the Y direction, the first direction (i.e., the length direction of the structural core plate 20) is Figure 1 In the X direction, the thickness direction of the structural core plate 20 is the Z direction, which is perpendicular to both the X and Y directions. Figure 1 In this embodiment, the X direction is the length direction of the structural core board 20, and the Y direction is the width direction of the structural core board 20. Of course, the length and width directions of the structural core board 20 are not limited to these and can be interchanged. The structural core board 20 is composed of a plurality of core blocks 21 arranged in the XY plane, and the corresponding end faces 211 of the plurality of core blocks 21 are flush. Preferably, the wood grain direction of the core block 21 is perpendicular to the two end faces 211. When the outer peripheral surface 212 of the core block 21 includes a side surface, the wood grain direction of the core block 21 is consistent with the setting direction of the side surface.

[0101] The chip 21 of the present invention can be made from Figure 3 The wood strip 25 shown is sawn from logs. It can be made by radial cutting, tangential cutting, or notching. The core block 21 is relatively small; its length in the X direction is typically between 20mm and 120mm, and its width in the Y direction is typically between 20mm and 60mm. The outline of the core block 21 matches the cross-sectional outline of the wood strip 25. Figure 3 The cross-sectional profile of the wooden strip 25 is square. Figure 5 The cross-sectional outline of the wooden strip 25 shown is rectangular. Because the length and width of the structural core board 20 can be adjusted by the number of core blocks 21, the source of materials for the core blocks 21 of this invention is more convenient. Narrow, short wooden strips, scraps, and sheets from dismantled old timber can be used, effectively reducing the manufacturing cost of the board material. For example, the wooden strip 25 can be made from small-diameter logs of fast-growing timber (such as poplar, fir, pine, birch, eucalyptus, acacia, and privet), solving the problem of existing boards relying on large-diameter logs due to the need for large-format boards, and addressing the pain point that fast-growing timber cannot be used for large-format boards due to insufficient format. The outer contours of the end faces of the wooden strip 25 and the core block 21 are not limited to rectangles or squares; they can also be other polygonal, circular, or other shapes.

[0102] Furthermore, the groove 213 provided on the core block 21 can be specifically provided by first processing the wood strip 25 on the side or outer periphery with a woodworking four-sided planer to a fixed width and thickness, and then sawing the wood strip 25 to obtain the core block 21. This can improve the production efficiency of the groove 213.

[0103] like Figure 4As shown, a groove 213 is provided on the corresponding side of the wooden strip 25. This groove 213 is an oblique groove, and then the wooden strip 25 can be cut according to the required size to obtain the core block 21. Figure 5 As shown, a groove 213 is provided on the corresponding side of the wooden strip 25. The groove 213 is a straight groove. The wooden strip 25 can then be cut according to the required size to obtain the radial core block 21.

[0104] In one specific embodiment of the present invention, the method for manufacturing the structural core board of the present invention includes the following steps: like Figure 3 As shown, a plurality of wooden strips 25 are provided, each wooden strip 25 including two opposing end faces and an outer peripheral face, combined with Figure 4 and Figure 5 As shown, at least one groove 213 is provided on the outer peripheral surface (or at least one side) of the wooden strip 25; Multiple wooden strips 25 are sequentially spliced ​​together by splicing their outer circumferences to form a spliced ​​board of the required size; Multiple panels are stacked and connected to form a composite unit of the required size; Along the length of the wooden strip, the composite unit is cut according to the required thickness of the structural core board 20, thereby obtaining multiple structural core boards 20.

[0105] Furthermore, when splicing multiple wooden strips 25, they can be spliced ​​into a splicing board by a rope-stringing process. For example, connecting grooves 215 with a certain width can be sawn along the X direction on the upper and lower sides of the wooden strips 25. Paper ropes coated with glue and adapted to the diameter of the connecting grooves 215 are pulled taut and pressed into the connecting grooves 215 of the multiple wooden strips, and the wooden strips are strung together by the rope to form a splicing board.

[0106] Or, such as Figure 15 As shown, multiple wooden strips 25 can be strung together to form a splicing board by inserting connectors 24 through the wooden strips 25. For example, through-holes 251 are drilled at the ends of each wooden strip 25, and then the connectors 24, such as round wood, bamboo sticks or PVC round rods, are inserted into the through-holes of the multiple wooden strips 25 to form a splicing board.

[0107] The use of a stringing process to splice wood strips offers significant advantages in processing and resource utilization. When using scraps or fragments from dismantled old wood, the wood strips 25 can be spliced ​​using this process. Only the thickness of the strips 25 in the same layer needs to be consistent; it is not necessary for all layers to have the same thickness. Compared to traditional splicing processes, which suffer from high material loss due to unevenness and thickness requirements during jointing, this invention, through stringing or using connectors, eliminates the need for glue application and side pressing when splicing wood strips 25. This substantially improves wood utilization and production efficiency, aligning with the requirements of a green circular economy.

[0108] like Figure 2 As shown, a second embodiment of the structural core board 20 is presented. The difference between this embodiment and the first embodiment is that no grooves are provided around the structural core board 20. That is, no grooves are provided on the outer side of the core block 21 or wood strip 25 at the edge of the structural core board 20. This improves the structural strength of the edge of the structural core board 20, and the four sides can be directly processed into various lines or tenons.

[0109] In one specific embodiment of the present invention, such as Figure 6 and Figure 8 As shown, the groove 213 is a straight groove and / or an oblique groove. The groove 213 is set in the direction of the corresponding side. A straight groove means that the depth direction of the groove 213 is perpendicular to the corresponding side of the core block 21. An oblique groove means that the depth direction of the groove 213 forms a certain angle with the corresponding side of the core block 21. This angle is not 90 degrees. Preferably, the angle is between 20° and 85°, and more preferably 35°, 40°, 140°, 145°, etc.

[0110] The purpose of groove 213 is to break the reinforcing fibers and relieve stress, thus physically eliminating internal stress in the wood. Wood naturally possesses irregular grain patterns and internal stress. Especially in large-format boards, stress easily concentrates and is transmitted along the grain under changes in environmental temperature and humidity or external forces, leading to overall board warping and surface cracking. The grooves of this invention physically "break the reinforcing fibers," severing the stress transmission path and dispersing the overall stress of the board into several small, dispersed stress areas. This further reduces the risk of stress concentration from the source. When adapted to small-sized core blocks, it enables more precise stress control. Straight grooves can precisely cut off axial stress transmission channels, matching the low expansion and contraction characteristics of the core block. This further constrains the slight axial expansion and contraction caused by moisture penetration, while reserving directional space for the wood's wet expansion and dry contraction, avoiding secondary internal stress caused by obstructed expansion and contraction. It is particularly suitable for fast-growing wood with relatively regular grain patterns and many knots, offering convenient processing and highly targeted stress relief. Angled grooves maximize the cutting path and adapt to the irregular natural grain of wood. Regardless of the curvature or interlacing of the wood grain rings, angled grooves can penetrate the grain with a longer sawing groove, achieving a more comprehensive and thorough "grain break." Compared to straight grooves, angled grooves are more adaptable to irregular grain patterns and can more effectively dissipate the irregular stress caused by messy grains. They can effectively deal with messy waste wood and scraps, ensuring that these materials maintain a minimum stress state after splicing.

[0111] Furthermore, the groove 213 can be configured in various ways. The following describes the configuration of the groove 213 on the core block 21 of the present invention.

[0112] like Figure 6As shown, the outer peripheral surface of the core block 21 includes at least two pairs of side surfaces; the groove 213 is provided on at least one pair of side surfaces of the core block 21. That is, the groove 213 can be provided on one pair of side surfaces of the core block 21, or on two pairs of side surfaces, or on three pairs of side surfaces, etc.

[0113] In a preferred embodiment, at least one connecting groove 215 is further provided on the outer peripheral surface of the core block 21. For example... Figure 5 As shown, a connecting groove 215 is provided on the radial wooden strip 25 in a direction perpendicular to the side. This connecting groove 215 can both accommodate paper rope in the rope stringing process and also serve as a stress relief and rope breaking mechanism in another direction.

[0114] In yet another preferred embodiment, such as Figure 4 As shown, grooves 213 are provided on all four sides of the wooden strip 25, and one groove 213 is provided on each side. The groove 213 is an oblique groove, and the depth of the oblique groove is close to or equal to half the thickness of the wooden strip 25. The cross-sectional profile of the wooden strip 25 is square.

[0115] In yet another preferred embodiment, such as Figure 5 As shown, grooves 213 are provided on all four sides of the wooden strip 25, with one groove 213 on each side. The groove 213 is a straight groove and is located in the middle of the corresponding side. The cross-sectional outline of the wooden strip 25 is rectangular. A connecting groove 215 perpendicular to the side setting direction is also provided on the top and bottom sides of the wooden strip 25.

[0116] In yet another preferred embodiment, such as Figure 6 As shown, grooves 213 are provided on all four sides of the core block 21, with one groove 213 on each side. The groove 213 is a straight groove, located in the middle of the corresponding side. The cross-sectional profile of the core block 21 is square.

[0117] In yet another preferred embodiment, such as Figure 7 As shown, grooves 213 are provided on all four sides of the core block 21, with one groove 213 on each side. The groove 213 is a straight groove, which is located at a non-center part of the corresponding side. The cross-sectional profile of the core block 21 is square.

[0118] In yet another preferred embodiment, such as Figure 8 As shown, a groove 213 is provided on each of a pair of sides of the core block 21. The groove 213 is an oblique groove. The length of the oblique groove is greater than half the length of the core block 21 in the longitudinal direction and less than the length of the core block 21 in the longitudinal direction. The cross-sectional profile of the core block 21 is square.

[0119] In yet another preferred embodiment, such as Figure 9As shown, a groove 213 is provided on each of the four sides of the core block 21. The groove 213 is an oblique groove, and the cross-sectional profile of the core block 21 is square.

[0120] In yet another preferred embodiment, such as Figure 10 As shown, a groove 213 is provided on each of the four sides of the core block 21. The groove 213 is an oblique groove, and the cross-sectional profile of the core block 21 is a regular octagon.

[0121] In yet another preferred embodiment, such as Figure 11 As shown, grooves 213 are provided on a pair of sides of the core block 21. There are multiple grooves 213 on each side. The grooves 213 are oblique grooves. The oblique grooves on each side are in the same direction of inclination. The cross-sectional profile of the core block 21 is rectangular.

[0122] In yet another preferred embodiment, such as Figure 12 As shown, grooves 213 are provided on a pair of sides of the core block 21. There are at least two grooves 213 on each side. The grooves 213 are oblique grooves. The oblique grooves on each side are not in the same direction. The cross-sectional profile of the core block 21 is rectangular.

[0123] In yet another preferred embodiment, such as Figure 13 As shown, grooves 213 are provided on a pair of sides of the core block 21, and there are at least two grooves 213 on each side. The grooves 213 are straight grooves, and the cross-sectional profile of the core block 21 is rectangular.

[0124] In yet another preferred embodiment, such as Figure 14 As shown, a groove 213 is provided on each of the four sides of the core block 21. The grooves 213 on two sides are straight grooves, and the grooves 213 on the other two sides are oblique grooves. The cross-sectional profile of the core block 21 is rectangular.

[0125] Of course, the style of the groove 213 provided on the core block 21 of the present invention is not limited to the above-listed styles. The style of the groove 213 can also be other styles. The groove 213 provided on the core block 21 can also have different depths and shallownesses. The purpose is to ensure the structural strength of the core block 21 and the best stress relief effect obtained for the internal stress of different materials to meet the usage requirements.

[0126] In one specific embodiment of the present invention, such as Figure 31As shown, the outermost periphery of the core blocks 21 arranged flush in a plane has one or more outer panels 23. Alternatively, multiple core blocks 21 are arranged in rows in a plane, with one or more outer panels 23 on the outermost two rows of core blocks 21. These outer panels 23 can be joined to the corresponding core blocks 21 or wooden strips by applying glue and then laminating them. For example, a cold press can be used to bond them together after applying glue. The outer panels 23 can be made of veneer, solid wood, or engineered wood. When there are more than one outer panel 23, they are stacked vertically.

[0127] By assembling an outer side plate 23 on the outer side of the structural core plate 20, the integrity of each core block 21 on the structural core plate 20 can be improved, thereby enhancing the structural stability and aesthetics of the structural core plate 20.

[0128] Furthermore, such as Figure 32 As shown, one or two spacer boards 22 are sandwiched between two adjacent rows of core blocks 21. The spacer boards 22 can also be spliced ​​with the corresponding core blocks 21 or wooden strips by applying glue and then stacking and laminating them. For example, after applying glue, they can be spliced ​​and connected using a cold press or a hot press. The spacer boards 22 can be made of veneer, solid wood, or engineered wood.

[0129] Spacers 22 are placed between the brick-like core blocks 21 to form a constraint system, improving the integrity of the core blocks 21 and thus enhancing the structural strength and stability of the structural core board 20. Based on the orthogonal constraint principle of cross-laminated wood (i.e., orthogonal arrangement can balance the difference in strength between the transverse and longitudinal grains), the structural core board with spacers 22 can significantly improve structural stability and reduce the risk of board warping.

[0130] Furthermore, when the partition 22 is a wooden board, the grain direction of the partition 22 is perpendicular to the grain direction of the outer peripheral surface 212 of the two adjacent rows of core blocks 21, so as to... Figure 1 Taking the XYZ direction as an example, the wood grain direction of the outer peripheral surface 212 of the core block 21 is consistent with the Z direction, while the wood grain direction of the partition plate 22 is consistent with the X direction.

[0131] Preferably, both the partition 22 and the outer panel 23 can be selected from one or more of the following: rotary-cut veneer, solid wood board, organic board, inorganic board, metal board, and artificial board.

[0132] like Figure 16 and Figure 17As shown, a third embodiment of the structural core board 20 is displayed. In this third embodiment, grooves 213 are provided on all four sides of the core block 21. The grooves 213 are straight grooves. The adjacent rows of core blocks 21 are staggered. A spacer plate 22 is provided between the adjacent rows of core blocks 21. And outer plates 23 are provided on both sides of the width direction of the structural core board 20.

[0133] like Figure 18 As shown, in the fourth embodiment, grooves 213 are provided on all four sides of the core block 21, and the grooves 213 are oblique grooves. The gaps between two adjacent rows of core blocks 21 are aligned, a spacer plate 22 is provided between two adjacent rows of core blocks 21, and outer plates 23 are provided on both sides of the structural core plate 20 in the width direction.

[0134] like Figure 19 As shown, another variation based on the fourth embodiment is illustrated, which differs from the fourth embodiment in that the adjacent rows of core blocks 21 are staggered.

[0135] like Figure 20 As shown, a structure of a core block 21 is illustrated. The outer peripheral surface 212 of the core block 21 includes four sides, and grooves 213 are provided on two opposite sides, extending through two opposite end faces 211 of the core block 21. The grooves 213 can be straight or oblique. One straight groove and one oblique groove are provided on the corresponding side of the core block 21, and an oblique edge 2121 is provided at the corner of the core block 21.

[0136] Combination Figure 21 As shown, this demonstrates the use of Figure 20 The structural core board 20 made from the core block 21 shown is the fifth embodiment. In this structural core board 20, adjacent rows of core blocks 21 are staggered, a spacer 22 is provided between adjacent rows of core blocks 21, and outer plates 23 are provided on both sides of the structural core board 20 in the width direction. Two connected core blocks 21 arranged along the length direction of the structural core board 20 form a connecting hole 216 through the bevel 2121. The connecting hole 216 penetrates both surfaces of the structural core board 20 along the thickness direction.

[0137] like Figure 22 The diagram shows a sixth embodiment. In this sixth embodiment, the core blocks 21 on the structural core board 20 are regular octagons, with grooves 213 on their four sides. These grooves 213 are oblique grooves. The gaps between adjacent rows of core blocks 21 are aligned. A spacer plate 22 is provided between adjacent rows of core blocks 21, and outer side plates 23 are provided on both sides of the structural core board 20 in the width direction. These outer side plates 23 can be thin plates or, as shown, [missing information - likely referring to a specific material or material]. Figure 28The thick plate (or solid wood strip) shown. Two connected core blocks 21 arranged along the length of the structural core plate 20 form a connecting hole 216 through their corresponding side surfaces, which penetrates the two surfaces of the structural core plate 20 along the thickness direction.

[0138] like Figure 23 As shown, a variation based on the sixth embodiment is presented, the difference being that the adjacent rows of core blocks 21 are staggered.

[0139] like Figure 24 As shown, another structural configuration of the core block 21 is illustrated. This core block 21 has a through groove 214 and a pair of grooves 213 on both sides. The grooves 213 are oblique grooves. The through grooves 214 and 213 penetrate the two opposite end faces of the core block 21. The ends of the pair of oblique grooves on one side are connected to the through groove 214, while the other ends of the pair of oblique grooves are positioned away from each other, forming a V-shape.

[0140] like Figure 25 As shown, this demonstrates the use of Figure 24 The structural core board 20 made from the core block 21 shown is the seventh embodiment. In the seventh embodiment, the gaps between two adjacent rows of core blocks 21 in the structural core board 20 are aligned, a spacer plate 22 is provided between two adjacent rows of core blocks 21, and outer plates 23 are provided on both sides of the structural core board 20 in the width direction. Through slots 214 between two connected core blocks 21 arranged along the length direction of the structural core board 20 are aligned to form through holes.

[0141] like Figure 26 As shown, another structural configuration of the core 21 is illustrated, in which the core... Figure 24 Based on the above, a hypotenuse 2121 is provided at the angle of the core block 21.

[0142] like Figure 27 As shown, in the eighth embodiment, the core 21 adopts... Figure 26 In the structure shown, the gaps between adjacent rows of core blocks 21 in the core board 20 are aligned, a spacer 22 is provided between adjacent rows of core blocks 21, and outer plates 23 are provided on both sides of the core board 20 in the width direction. A connecting hole 216 is formed between two connected core blocks 21 along the length direction of the core board 20 through a bevel 2121, and this connecting hole 216 penetrates both surfaces of the core board 20 along the thickness direction. Corresponding oblique grooves on the two connected core blocks 21 along the length direction of the core board 20 are also connected.

[0143] like Figure 28As shown, a variation based on the eighth embodiment is presented. The difference between the eighth embodiment and the eighth embodiment is that the adjacent rows of core blocks 21 are staggered, an outer plate 23 is provided on the outermost side of the core block 21, the outer plate 23 is a thick plate, and the partition plate between the adjacent rows of core blocks 21 is removed.

[0144] like Figure 29 As shown, another structural design of the core block 21 is illustrated. Each of the four sides of the core block 21 has a pair of connected grooves 213. These grooves 213 are oblique grooves, and when viewed from the end face, the two grooves 213 on the side face form a V-shape when connected. The grooves 213 penetrate the two opposite end faces of the core block 21. An oblique edge 2121 is provided at the corner of the core block 21.

[0145] like Figure 30 As shown, in the ninth embodiment, the structural core plate 20 is composed of... Figure 29 The core blocks 21 shown are spliced ​​together, with the gaps between adjacent rows of core blocks 21 aligned. Thus, the oblique grooves between two core blocks 21 connected along the length direction of the structural core plate 20 are aligned, and the oblique grooves between two core blocks 21 connected along the width direction of the structural core plate 20 are also aligned. Connecting core blocks 211 arranged along the length and width directions form a connecting hole 216 through the oblique edge 2121. This connecting hole 216 penetrates both surfaces of the structural core plate 20 along the thickness direction.

[0146] like Figure 31 As shown, a variation based on the ninth embodiment is presented, the difference being that an outer plate 23 is provided on the outer side of the two rows of core blocks 21 in the width direction of the structural core plate 20.

[0147] like Figure 32 As shown, it is in Figure 31 Based on the structure shown, a spacer plate 22 is provided between two adjacent rows of core blocks 21.

[0148] like Figure 33 As shown, it is in Figure 32 Based on this, the adjacent rows of core blocks 21 are staggered.

[0149] In one specific embodiment of the present invention, the outer peripheral surface 212 of the core block 21 is provided with at least one through groove 214 connecting the two end faces 211. For example... Figure 34 As shown, the core block 21 includes two end faces 211 and at least two pairs of side faces connecting the two end faces 211; at least one side face of the core block 21 is provided with a through groove 214 connecting the two end faces 211.

[0150] After the structural core plate 20 is made by using the core block 21 with the through groove 214, the through groove 214 penetrates the two surfaces of the structural core plate 20 in the thickness direction.

[0151] Furthermore, such as Figure 35 As shown, through slots 214 on two core blocks 21 connected in the plane are joined to form a through hole. Alternatively, through slots 214 on two adjacent core blocks 21 along the length direction of the structural core plate 20 and / or two adjacent core blocks 21 along the width direction of the structural core plate 20 are joined to form a through hole.

[0152] Furthermore, some core blocks 21 are provided with through grooves 214 connecting the two end faces on their side surfaces; the density of the through grooves 214 is adjusted according to the strength requirements of the structural core plate 20.

[0153] The through groove 214 of this invention connects the two surfaces of the structural core board 20 in the thickness direction, and the connecting hole 216 also connects the two surfaces of the structural core board 20 in the thickness direction. The connecting hole 216 and the through groove 214 form a structure similar to a "bridge hole," which provides additional optimization functions for the structural core board 20. The bridge hole structure can achieve a balance of "lightweight + local high strength" by adjusting the arrangement density (such as denser at the edges and sparser in the middle). The high-density core blocks at the edges of the core board ensure installation strength (such as door hinge installation positions, floor and wall panel locking positions), while the bridge hole area in the middle can effectively reduce the self-weight of the board. At the same time, the bridge hole can disperse external impact forces and improve the board's resistance to creep and fatigue (such as wooden doors and cabinets that are not prone to deformation and sagging under long-term load). Moreover, the bridge hole design combined with the groove forms a complementary function. The groove focuses on the dissipation of internal stress in the texture, while the bridge hole structure focuses on overall mechanical performance, board weight reduction optimization, and sound insulation function expansion. The two do not interfere with each other and work synergistically to make the board surface flatter and less prone to bending and deformation.

[0154] The beneficial effects of the structural core board 20 of the present invention with its bridge-hole structure include: sound insulation and noise reduction: the bridge-hole structure, wood fibers, and grooves form a multi-layer acoustic impedance interface, which can effectively absorb mid-to-high frequency sound waves (such as indoor footsteps and furniture collision sounds) as a wall panel, and the sound insulation effect is significantly improved compared with solid boards, making it suitable for bedrooms, studies, and other scenarios where sound insulation is required; enhanced compatibility with underfloor heating: the bridge holes in the core board form a porous nest that can accelerate heat conduction (air convection assists in heat dissipation), while reducing the impact of slow heat conduction speed due to the thickness of the solid core board, which can make underfloor heating start-up and heating up more quickly, and the temperature distribution more uniform, thus helping to utilize heat energy efficiently; buffering the expansion and contraction of the wood core due to moisture: the air layer in the bridge holes can block the lateral conduction of moisture, and together with the directional expansion and contraction space of the grooves, further reduces the risk of deformation caused by local moisture and increased material volume, making it especially suitable for floor / wall panel installation in environments with large temperature and humidity changes. Moisture-proof / fire-retardant modification: The pores of the bridge structure can be filled with desiccant and fire-retardant particles (such as foaming expansion flame retardants), which can improve specific performance without changing the appearance of the board; Vibration reduction and noise reduction: When used for flooring, the bridge can buffer the vibration of stepping on the floor, and together with the stress relief of the groove, reduce the friction noise between the floor and the joists, completely solving the "squeaking" problem of traditional solid wood flooring; Customized adaptation: The shape of the groove (trapezoidal, dovetail, arc) and the arrangement angle (straight groove, oblique groove and included angle range) can be adjusted according to the scene (such as using wide oblique grooves in high humidity areas in the south to reduce expansion and contraction space and enhance the effect of breaking the ribs), and the arrangement of the bridge can be designed as needed (such as denser bridge holes in door panels and cabinet back panels to reduce weight and reduce load, and sparse bridge holes to make the board surface flat and stable but still ensure strength).

[0155] In one specific embodiment of the present invention, such as Figure 22 and Figure 23 As shown, the outer contour of the core block 21 is a regular octagon, or the core block 21 or the corner of the core block 21 is provided with a slanted edge 2121 or an arc-shaped edge 2122.

[0156] Furthermore, such as Figure 32 and Figure 33 As shown, the seams between adjacent rows of core blocks 21 are either aligned or staggered.

[0157] like Figure 35 As shown, in the tenth embodiment, the core block 21 of the structural core board 20 adopts... Figure 34In the structure shown, the gaps between adjacent rows of core blocks 21 in the core board 20 are aligned. Outer plates 23 are provided on the outer surfaces of the two rows of core blocks 21 on both sides of the core board 20 in the width direction. A connecting hole 216 is formed between two connected core blocks 21 along the length direction of the core board 20 through a bevel 2121, and this connecting hole 216 penetrates both surfaces of the core board 20 along the thickness direction. Corresponding beveled grooves on the two connected core blocks 21 along the length direction of the core board 20 are also connected. Through slots 214 of two connected core blocks 21 along the width direction of the core board 20 are aligned to form a through hole, which penetrates both surfaces of the core board 20 along the thickness direction.

[0158] like Figure 36 As shown, a variation based on the tenth embodiment is presented. The difference between the tenth embodiment and the tenth embodiment is that the adjacent rows of core blocks 21 are staggered, so that the through groove 214 is connected to the corresponding connecting hole 216.

[0159] like Figure 37 As shown, another structural style of the core block 21 is displayed. The core block 21 has grooves 213 on all four sides. The grooves 213 on the upper and lower sides are oblique grooves. The left and right sides are also provided with through grooves 214. The grooves 213 on the left and right sides are connected to the through grooves 214. The grooves 213 on the left and right sides are oblique grooves and straight grooves. The oblique grooves and straight grooves are located at the bottom of the through grooves 214 and are connected to the through grooves 214.

[0160] like Figure 38 As shown, in the eleventh embodiment, the structural core plate 20 is composed of... Figure 37 The core blocks 21 shown are spliced ​​together, and the gaps between two adjacent rows of core blocks 21 are aligned. Thus, the through grooves 214 and grooves 213 between two core blocks 21 connected along the length direction of the structural core plate 20 are aligned. A spacer 22 is provided between the two rows of core blocks 21 along the width direction of the structural core plate 20. An outer plate 23 is provided on the outer side of the two outermost rows of core blocks 21.

[0161] like Figure 39 As shown, a variation based on the eleventh embodiment is illustrated. The difference lies in the staggered arrangement of adjacent rows of core blocks 21, the removal of the intermediate spacer 22, and the modification of the outermost outer plate 23 into a thicker plate. The gaps between adjacent rows of core blocks 21 on the structural core plate 20 are staggered.

[0162] like Figure 40 As shown, it is in Figure 39 Based on the structure shown, the gaps between the two adjacent rows of core blocks 21 are aligned, and the outermost outer plate 23 is set as a thin plate.

[0163] like Figure 41 As shown, in the twelfth embodiment, the gaps between two adjacent rows of core blocks 21 on the structural core board 20 are staggered, so that the through grooves 214 and oblique grooves between two core blocks 21 connected along the length direction of the structural core board 20 are aligned. The connected core blocks 21 connected along the length direction of the structural core board 20 form a connecting hole 216 through the oblique edge 2121. The connecting hole 216 penetrates both surfaces of the structural core board 20 along the thickness direction. Outer plates 23 are provided on the outer surfaces of the two rows of core blocks 21 on both sides of the width direction of the structural core board 20. The outer plates 23 are thick plates. Spacer plates 22 are provided between two adjacent rows of core blocks 21. The spacer plates 22 are thin plates.

[0164] like Figure 42 As shown, another structural design of the core block 21 is illustrated. One pair of sides of the core block 21 have through grooves 214 and a pair of connected grooves 213 at the bottom of the through grooves 214. These grooves 213 are oblique grooves, and from the end face, the two grooves 213 on the sides connect to form a V-shape. These grooves 213 penetrate the two opposite end faces of the core block 21, and are connected to the corresponding through grooves 214. On the other pair of sides of the core block 21, two through grooves 214 and a pair of connected grooves 213 at the bottom of the through grooves 214 are each provided. These grooves 213 are oblique grooves, and from the end face, the two grooves 213 on the sides connect to form a V-shape. The corners of the core block 21 have beveled edges 2121. The outer contour of the end face 211 of this core block 21 is rectangular.

[0165] like Figure 43 As shown, in the thirteenth embodiment, the structural core plate 20 is composed of... Figure 42 The core blocks 21 shown are spliced ​​together, with the gaps between adjacent rows of core blocks 21 aligned. The through grooves 214 and oblique grooves between two connected core blocks 21 are aligned. Connecting core blocks 21 form a connecting hole 216 through the oblique edge 2121, which penetrates both surfaces of the structural core plate 20 along its thickness direction. Outer plates 23 are provided on the outer surfaces of the two outermost rows of core blocks 21.

[0166] like Figure 44 As shown, a variation based on the thirteenth embodiment is presented, which differs from the thirteenth embodiment in that the adjacent rows of core boards 211 are staggered.

[0167] like Figure 45 As shown, it is in Figure 44 Based on the structure shown, a spacer plate 22 is provided on the two adjacent rows of core blocks 21.

[0168] like Figure 46As shown, another structural style of the core block 21 is displayed. The core block 21 has grooves 213 on its upper and lower sides, and the grooves 213 are oblique grooves. The left and right sides have through grooves 214 and a pair of grooves 213 at the bottom of the through grooves 214. The grooves 213 are oblique grooves. From the end face, the pair of oblique grooves are connected in a V shape. An oblique edge 2121 is provided at the corner of the core block 21.

[0169] like Figure 47 As shown, in the fourteenth embodiment, the structural core plate 20 is composed of... Figure 46 The core blocks 21 shown are spliced ​​together. The through grooves 214 between two core blocks 21 connected along the length of the structural core plate 20 are joined to form a through hole. The inclined sides 2121 are connected to form a connecting hole 216. The gaps between two adjacent rows of core blocks 21 are aligned. An outer plate 23 is provided on the outer side of the two outermost rows of core blocks 21.

[0170] like Figure 48 As shown, a modification is made based on the fourteenth embodiment, in which a spacer plate 22 is provided between two adjacent rows of core blocks 21.

[0171] like Figure 49 As shown, another structural style of the core block 21 is displayed. Each side of the core block 21 is provided with a through groove 214 and a groove 213 at the bottom of the through groove 214. The groove 213 is a straight groove. From the end face, the through groove 214 is semi-circular. An arc-shaped edge 2122 is provided at the corner of the core block 21.

[0172] like Figure 50 As shown, in the fifteenth embodiment, the structural core plate 20 is composed of... Figure 49 The core blocks 21 shown are assembled together, with the gaps between adjacent rows of core blocks 21 aligned. The through grooves 214 and straight grooves between two core blocks 21 connected along the length of the structural core plate 20 are aligned, as are the through grooves 214 and straight grooves between two core blocks 21 connected along the width of the structural core plate 20. Connecting core blocks 21 are connected by arc-shaped edges 2122, forming connecting holes 216. The cross-section of the connecting holes 216 is semi-circular or circular, and these connecting holes 216 penetrate both surfaces of the structural core plate 20 along its thickness. Outer plates 23 are provided on the outer surfaces of the two outermost rows of core blocks 21.

[0173] like Figure 51 As shown, a variation based on the fifteenth embodiment is presented, the difference being that the adjacent rows of core boards 211 are staggered.

[0174] like Figure 52 As shown, it is in Figure 50 Based on the structure shown, a spacer plate 22 is provided between two adjacent rows of core blocks 21.

[0175] like Figure 53 As shown, another structural style of the core block 21 is displayed. Each side of the core block 21 is provided with a through groove 214 and three grooves 213 at the bottom of the through groove 214. The grooves 213 include straight grooves and oblique grooves, and an oblique edge 2121 is provided at the corner of the core block 21.

[0176] like Figure 54 As shown, in the sixteenth embodiment, the structural core plate 20 is composed of... Figure 53 The core blocks 21 shown are spliced ​​together, with the gaps between adjacent rows of core blocks 21 aligned. Thus, the through grooves 214 and grooves 213 between two core blocks 21 connected along the length of the structural core plate 20 are aligned, as are the through grooves 214 and grooves 213 between two core blocks 21 connected along the width of the structural core plate 20. Connecting core blocks 21 are connected by beveled edges 2121 forming connecting holes 216. The cross-section of the connecting holes 216 is triangular or rhomboid, and these connecting holes 216 penetrate both surfaces of the structural core plate 20 along its thickness direction. Outer plates 23, which are thick plates, are provided on the outer surfaces of the two outermost rows of core blocks 21.

[0177] like Figure 55 As shown, a variation based on the sixteenth embodiment is presented, the difference being that the adjacent rows of core boards 211 are staggered.

[0178] like Figure 56 As shown, it is in Figure 55 Based on the structure shown, a spacer plate 22 is provided between two adjacent rows of core blocks 21, and the gaps between the two middle rows of core blocks 21 are aligned.

[0179] like Figure 57 As shown, another type of core block 21 structure is displayed. The core block 21 has through grooves 214 on three sides and a pair of grooves 213 at the bottom of the through grooves 214. The grooves 213 are oblique grooves, and the pair of oblique grooves are connected in a V-shape.

[0180] like Figure 58 As shown, in the seventeenth embodiment, the structural core plate 20 is composed of... Figure 57 The shown core blocks 21 are assembled to form a hollow unit. The units are arranged in a plane with their outer peripheral surfaces connected. A connecting channel 217 is formed inside the unit. The outermost periphery of the units arranged in a plane has one or more outer plates 23. The gaps between the two rows of units are aligned.

[0181] like Figure 59As shown, a variation based on the seventeenth embodiment is presented, the difference of which is that a spacer plate 22 is sandwiched between two adjacent rows of unit cells.

[0182] The present invention also provides a structural core board, such as Figure 60 As shown, the core board 20 includes multiple core blocks 21. Each core block 21 has two opposing end faces and an outer peripheral surface. The distance between the two end faces of each core block 21 is approximately equal or equal. The multiple core blocks are arranged in a plane with their outer peripheral surfaces touching, and are aligned in rows. The multiple core blocks 21 are arranged in at least two rows, and one or two spacer plates 22 are sandwiched between adjacent rows of core blocks 21. In this embodiment, no grooves are provided on the core blocks 21.

[0183] Furthermore, one or more outer side plates 23 are provided on the outermost periphery of the multiple core blocks 21 arranged in the plane, or outer side plates 23 are provided on the outer sides of the two outermost rows of core blocks 21.

[0184] Furthermore, the wood grain direction of core block 21 is perpendicular to both end faces.

[0185] This invention also provides a composite board with a structural core, such as... Figure 61 As shown, the composite panel includes the aforementioned structural core board 20 and a balancing plate 31 covered on the structural core board 20, with an upper surface 20a and a lower surface 20b formed by the end faces of the core blocks. Alternatively, the composite panel of the present invention includes the aforementioned structural core board 20 and a decorative panel 33 covered on the structural core board 20, with an upper surface 20a and a lower surface 20b formed by the end faces of the core blocks.

[0186] Furthermore, such as Figure 62 As shown, when the upper and lower surfaces of the structural core board 20 are covered with a balance board 31, the composite board also includes a decorative panel 33 covered on the outer surface 311 of the balance board 31.

[0187] Furthermore, when the upper and lower surfaces of the structural core board 20 are covered with a balancing board 31, the balancing board 31 is made of veneer, solid wood, artificial board, metal board, inorganic board, or organic board. When the balance board 31 is made of veneer, the wood grain direction of the balance board 31 is consistent with the width direction of the structural core board 20. When the balance board 31 is made of solid wood, the wood grain direction of the balance board 31 is consistent with the length direction of the structural core board 20. When the upper and lower surfaces of the structural core board 20 are covered with decorative panels 33, the decorative panels 33 may be made of solid wood boards, artificial leather, 3D texture pattern printing, cosmetic decorative paper, artificial boards, polymer materials, metal plates, organic boards or inorganic boards. When solid wood is selected for the decorative panel 33, the wood grain direction of the decorative panel 33 is consistent with the length direction of the structural core board 20.

[0188] like Figure 63 As shown, in the third embodiment, the composite board also includes frame strips 35 surrounding the structural core board 20. The frame strips 35 are solid wood strips, and the balancing boards 31 covering the upper and lower surfaces of the structural core board 20 also cover the surfaces of the corresponding frame strips 35. Alternatively, the frame strips 35 can be applied to opposite sides of the structural core board 20.

[0189] The balance board 31 covering the upper and lower surfaces of the structural core board 20 can be made of solid wood, with its wood grain direction parallel to the frame strip 35, covering the surfaces of the corresponding structural core board 20 and frame strip 35.

[0190] like Figure 64 As shown, based on the third embodiment, a tenon 351 and a mortise 352 are provided on the opposite sides of the frame strip 35. The tenon 351 and the mortise 352 facilitate the splicing of composite panels.

[0191] like Figure 65 As shown, it is similar to Figure 64 The difference in the illustrated embodiment is that the frame strip 35 is made of multi-layer board.

[0192] like Figure 66 As shown, it is in Figure 63 Based on the structure shown, a wood-grain decorative panel 33 is provided, which covers the outer surface of the balance board 31. The decorative panel 33 is made of solid wood. The wood grain direction of the decorative panel 33 is perpendicular to the wood grain direction of the balance board 31.

[0193] like Figure 67 As shown, it is in Figure 63 Based on the structure shown, another decorative panel 33 is provided, which is applied to the outer surface of the balance plate 31. The decorative panel 33 can be made of artificial leather, cosmetic paper, artificial board, polymer material, metal plate, organic board, inorganic board, etc.

[0194] like Figure 68 As shown, in the fourth embodiment, a frame strip 35 is provided on the outer periphery of the structural core board 20. The end of the frame strip 35 is provided with a tenon 351 and a mortise 352. The tenon 351 and the mortise 352 are used to realize a stable tenon and mortise connection between the frame strips 35. A balance plate 31 is provided on the upper and lower surfaces of the structural core board 20. The balance plate 31 can be made of veneer, solid wood, artificial, polymer, metal, inorganic, organic, ceramic tile, rock slab, etc.

[0195] like Figure 69 As shown, it is similar to Figure 68The difference is that the composite board has a wood-grain decorative panel 33 on the outside.

[0196] Furthermore, the composite panel includes one or more structural core panels 20.

[0197] like Figure 70 and Figure 71 As shown, the composite board includes two structural core boards 20, with a frame strip 35 between the structural core boards 20 and a frame strip 35 on the outer periphery of the structural core boards 20. The frame strips 35 are connected by butt joints. The composite board can be used as a door panel, wall panel, cabinet door panel, partition wall panel, floor (including underfloor heating floor and moisture-resistant floor), decorative panel, dining table panel, office table panel, desktop panel, tea table, small table, etc.

[0198] like Figure 72 As shown, in this embodiment, it is Figure 70 Based on the structure shown, a balance plate 31 is applied to the opposing surfaces of the structural core plate 20 and the frame strip 35.

[0199] like Figure 73 and Figure 74 As shown, in this embodiment, it is Figure 72 Based on the structure shown, a decorative panel 33 is applied to the outer side of the balance plate 31.

[0200] like Figure 75 The image shows a sixth embodiment of the composite panel, which includes two structural core panels 20, with a frame strip 35 between the core panels 20 and another frame strip 35 on the outer periphery of each core panel 20. The frame strips 35 are butt-connected, and balancing plates 31 are laid on the upper and lower surfaces of the core panels 20 and the frame strips 35. This composite panel can be used as a door panel, wall panel, cabinet door panel, partition wall panel, flooring (including underfloor heating flooring and moisture-resistant flooring), decorative panel, dining table panel, office desk panel, tabletop, tea table, and other similar products.

[0201] like Figure 76 As shown, it is similar to Figure 75 The difference in the illustrated embodiment is that a decorative panel 33 is provided on the outer side of the balance plate 31.

[0202] like Figure 77As shown, in the eighth embodiment, the composite board includes four structural core boards 20. Horizontal and vertically arranged frame strips 35 are provided on the inner sides of the four structural core boards 20, and frame strips 35 are provided on the outer periphery of the structural core boards 20. The frame strips 35 are butt-connected and fixed. This composite board can be used as door panels, wall panels, cabinet door panels, partition panels, flooring (including underfloor heating flooring and moisture-resistant flooring), decorative panels, dining table panels, office desk panels, tabletops, tea tables, and other similar items. Based on this eighth embodiment, a balancing board 31 and a decorative panel 33 can be applied to the opposite surfaces of the composite board.

[0203] All the frame strips 35 can be provided with tenons 351 or mortises 352 on opposite sides. The tenons 351 and mortises 352 can be used to make various mortises and grooves for flooring and wall panels commonly found in the market, so as to enable quick-installation connection of composite boards.

[0204] like Figure 78 As shown, in the ninth embodiment, a balance plate 31 is provided on the upper and lower surfaces of the structural core plate 20.

[0205] like Figure 79 As shown, in the tenth embodiment, a wood-grained balancing board 31 is provided on the upper and lower surfaces of the structural core board 20. For example... Figure 80 As shown, based on the tenth embodiment, a wood-grained decorative panel 33 is covered on the outside of the balance plate 31, and the wood grain direction of the decorative panel 33 is perpendicular to the wood grain direction of the balance plate 31.

[0206] like Figure 81 As shown, a balancing board 31 is installed on the upper and lower surfaces of the structural core board 20. This balancing board 31 can be made of veneer, solid wood, artificial materials, polymers, metals, inorganic materials, organic materials, ceramic tiles, or sintered stone. When the balancing board 31 is made of solid wood, the grain direction of the balancing board 31 is parallel to the length direction of the structural core board 20 (e.g.,...). Figure 1 The grain direction of the balance board 31 is consistent with the width direction of the structural core board 20 (e.g., the X direction); when the balance board 31 is made of veneer, the grain direction of the balance board 31 is consistent with the width direction of the structural core board 20 (e.g., the X direction); Figure 1 (in the Y direction) is consistent.

[0207] The grooves on the core board of this invention work synergistically with other structures. This synergistic stress relief includes: ① the stress-dissipating function of the grooves, combined with the low expansion and contraction characteristics of the core board; ② the cross-constraint of the veneers; ③ the stress dispersion formed by the brick-like arrangement to create a closed loop; ④ the balancing board + frame strip side-pressing splicing, where the upper and lower sections of the core board cut from stacked square timber are pressed against the balancing board, providing balance and sealing the core's guide holes—the core board lays a low-stress foundation, the reverse veneers balance expansion and contraction in all directions, the brick-like arrangement disperses interface stress, and the grooves cut off stress from within the grain, sealing the guide holes in the core board section to reduce the root cause of moisture expansion and contraction. These four synergistic structural functions can significantly reduce the overall stress level of the board, fundamentally solving the core problem of wood deformation and warping from a physical perspective.

[0208] This invention also provides a method for manufacturing a structural core board, which includes the following steps: Multiple wooden strips are provided, each wooden strip having two opposite end faces and an outer peripheral face. At least one groove is provided on the outer peripheral face of the wooden strip, and the distance between the two end faces of each wooden strip is approximately equal or equal. Multiple wooden strips are sequentially spliced ​​together by joining their outer surfaces to form a spliced ​​board of the required size; Multiple panels are stacked and connected to form a composite unit of the required size; Along the length of the wooden strips, the composite unit is cut according to the required thickness of the structural core board to obtain multiple structural core boards.

[0209] Furthermore, when splicing wooden strips, multiple strips are joined together to form a spliced ​​board using a rope-stringing technique; or, multiple strips are joined together to form a spliced ​​board by threading connectors through them. Combined with... Figure 15 As shown, before inserting the connector 24, two to four through-holes 251 are drilled in the wooden strip 25, so that the connector 24 can be inserted into the corresponding hole 251 to connect multiple wooden strips to form a splicing board.

[0210] Furthermore, it also includes: providing at least one through groove on the outer periphery of the wooden strip that connects the two end faces.

[0211] Furthermore, when stacking and connecting splicing panels, one or more outer side panels are provided on the topmost splicing panel, and one or more outer side panels are provided under the bottommost splicing panel.

[0212] Furthermore, when stacking and connecting splice panels, one or two spacer plates are sandwiched between two adjacent splice panels.

[0213] This invention also provides a method for manufacturing a structural core board, which includes the following steps: Multiple wooden strips are provided, each strip having two opposite end faces and an outer peripheral face. The distance between the two end faces of each strip is approximately equal or equal. The multiple wooden strips are sequentially spliced ​​together by splicing their outer peripheral faces to form a splicing board of the required size. Multiple spacers are provided, and the spacers and splicing plates are stacked and connected alternately to form a composite unit of the required size; Along the length of the wooden strips, the composite unit is cut according to the required thickness of the structural core board to obtain multiple structural core boards.

[0214] This invention also provides a method for manufacturing a structural core board, which includes the following steps: Multiple wooden strips are provided, each wooden strip having two opposing end faces and an outer peripheral surface. At least one groove is provided on the outer peripheral surface of the wooden strip, and the distance between the two end faces of each wooden strip is approximately equal or equal. Multiple wooden strips are joined together by splicing their outer surfaces to form a hollow unit group. The unit groups are then sequentially spliced ​​together by splicing their outer surfaces to form a splicing unit of the required size. Multiple splicing units are stacked and connected to form a composite unit of the required size; Along the length of the wooden strips, the composite unit is cut according to the required thickness of the structural core board to obtain multiple structural core boards.

[0215] Furthermore, it also includes: sandwiching one or two spacer plates between two adjacent splicing units.

[0216] Furthermore, it also includes: providing one or more outer side plates on the outermost periphery of the composite unit, or providing one or more outer side plates on opposite sides of the composite unit.

[0217] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A structural core board (20), characterized in that, It includes multiple core blocks (21), each core block (21) having two opposing end faces (211) and an outer peripheral surface (212), and the outer peripheral surface (212) of the core block (21) having at least one groove (213). The distance between the two end faces (211) of each core block (21) is approximately equal or equal; Multiple core blocks (21) are arranged in a plane with their outer peripheral surfaces (212) in a flush configuration to form the structural core plate (20).

2. The structural core board (20) as described in claim 1, characterized in that, The groove (213) is a straight groove and / or an oblique groove.

3. The structural core board (20) as described in claim 1, characterized in that, Multiple core blocks (21) are arranged in rows in the plane, and the multiple core blocks (21) are arranged in at least two rows, with each core block (21) in the same row being connected in sequence.

4. The structural core board (20) as described in claim 1, characterized in that, Multiple core blocks (21) are connected by their outer peripheral surfaces (212) to form a hollow unit body. Each unit body is arranged in a flat manner with its outer peripheral surfaces connected in the plane.

5. The structural core board (20) as described in claim 4, characterized in that, Each unit cell is arranged in a row in the plane, and each unit cell is arranged in at least two rows; One or two partition plates (22) are sandwiched between two adjacent rows of units.

6. The structural core plate (20) as described in claim 4, characterized in that, The outermost periphery of the unit cells arranged in a plane is provided with one or more outer side plates (23); or, the outer side surfaces of the two outermost rows of unit cells are provided with one or more outer side plates (23).

7. The structural core board (20) as described in claim 1, characterized in that, The outer peripheral surface (212) of the core block (21) is provided with two interconnected oblique grooves, and the two oblique grooves are set at a certain angle.

8. The structural core board (20) as described in claim 1, characterized in that, At least one connecting groove (215) is provided on the outer peripheral surface (212) of the core block (21), and the setting direction of the connecting groove (215) is perpendicular to the setting direction of the groove (213).

9. The structural core board (20) as described in claim 1, characterized in that, The outer peripheral surface (212) of the core block (21) is provided with at least one through groove (214) connecting the two end faces (211).

10. The structural core plate (20) as described in claim 9, characterized in that, The through slots (214) of two core blocks (21) connected in the plane are joined to form a through hole.

11. The structural core board (20) as described in claim 9, characterized in that, A groove (213) provided on the same side as the through groove (214) is connected to the through groove (214).

12. The structural core board (20) as described in claim 1, characterized in that, The outer contour of the end face of the core block (21) is a regular octagon, or the outer peripheral surface (212) of the core block (21) is provided with a slanted edge (2121) or an arc edge (2122).

13. The structural core plate (20) as described in claim 12, characterized in that, The inclined sides (2121) or arc-shaped sides (2122) of two core blocks (21) connected in the plane are used to form a connecting hole (216).

14. The structural core board (20) as described in claim 1, characterized in that, Multiple core blocks (21) are arranged in rows in the plane, and the multiple core blocks (21) are arranged in at least two rows, with the seams between adjacent rows of core blocks (21) being staggered or aligned with each other.

15. The structural core board (20) as described in claim 1, characterized in that, The outermost periphery of the core blocks (21) arranged in parallel in the plane is provided with one or more outer side plates (23); or, multiple core blocks (21) are arranged in rows in the plane, and the outermost two rows of core blocks (21) are provided with one or more outer side plates (23).

16. The structural core board (20) as described in any one of claims 1 to 15, characterized in that, Multiple core blocks (21) are arranged in rows in the plane, and the multiple core blocks (21) are arranged in at least two rows, with one or two spacer plates (22) sandwiched between two adjacent rows of core blocks (21).

17. The structural core board (20) as described in claim 1, characterized in that, The grain direction of the core block (21) is perpendicular to the two end faces (211).

18. The structural core board (20) as described in claim 1, characterized in that, Multiple core blocks (21) are arranged in a row in the plane, and the core blocks (21) in the same row are connected by connectors (24).

19. The structural core board (20) as described in claim 1, characterized in that, A through groove (214) connecting the two end faces is provided on the outer peripheral surface (212) of some core blocks (21). Adjust the density of the through grooves (214) according to the strength requirements of the structural core plate (20).

20. A structural core board (20), characterized in that, It includes multiple core blocks (21), each core block (21) having two opposing end faces (211) and an outer peripheral surface (212); the distance between the two end faces (211) of each core block (21) is approximately equal or equal; Multiple core blocks (21) are arranged in a plane with their outer peripheral surfaces (212) aligned and in rows. The multiple core blocks (21) are arranged in at least two rows, and one or two spacer plates (22) are sandwiched between two adjacent rows of core blocks (21) to form the structural core plate (20).

21. The structural core plate (20) as described in claim 20, characterized in that, The partition (22) is a wooden board, and the wood grain direction of the partition (22) is perpendicular to the wood grain direction of the outer peripheral surface (212) of the two adjacent rows of core blocks (21).

22. The structural core plate (20) as described in claim 20, characterized in that, One or more outer side plates (23) are provided on the outermost periphery of the multiple core blocks (21) arranged in the plane, or one or more outer side plates (23) are provided on the outer side of the two outermost rows of core blocks (21).

23. The structural core board (20) as described in any one of claims 20 to 22, characterized in that, The grain direction of the core block (21) is perpendicular to the two end faces (211).

24. A composite board with a structural core, characterized in that, include: Structural core plate (20) as described in any one of claims 1 to 23; A balance plate (31) or decorative panel (33) is applied to the surface formed by the end face (211) of the core block (21) on the structural core plate (20).

25. The composite board with a structural core as described in claim 24, characterized in that, When the surface of the structural core board (20) is covered with a balance board (31), the composite board also includes a decorative panel (33) covering the outer surface (311) of the balance board (31).

26. The composite board with a structural core as described in claim 24, characterized in that, It also includes frame strips (35) surrounding the structural core plate (20) or frame strips (35) covering the opposite sides of the structural core plate (20).

27. The composite board with a structural core as described in claim 24, characterized in that, The number of the structural core plate (20) is one or more.

28. The composite board with a structural core as described in claim 24, characterized in that, When the surface of the structural core board (20) is covered with a balance board (31), the balance board (31) is selected from veneer, solid wood board, artificial board, metal board, inorganic board or organic board. When the balance board (31) is made of veneer, the wood grain direction of the balance board (31) is consistent with the width direction of the structural core board (20); When the surface of the structural core board (20) is covered with a decorative panel (33), the decorative panel (33) is made of solid wood board, artificial leather, 3D texture pattern printing, cosmetic decorative paper, artificial board, polymer material, metal plate, organic board or inorganic board. When the decorative panel (33) is made of solid wood, the wood grain direction of the decorative panel (33) is consistent with the length direction of the structural core board (20).

29. A method for manufacturing a structural core board, characterized in that, Includes the following steps: A plurality of wooden strips (25) are provided, each wooden strip (25) having two opposing end faces and an outer peripheral face, wherein at least one groove is provided on the outer peripheral face of the wooden strip (25), and the distance between the two end faces of each wooden strip (25) is approximately equal or equal; Multiple wooden strips (25) are sequentially spliced ​​together by splicing their outer circumferences to form a splicing board of the required size; Multiple panels are stacked and connected to form a composite unit of the required size; Along the length of the wooden strip (25), the composite unit is cut according to the required thickness of the structural core board (20) to obtain multiple structural core boards (20).

30. The method for manufacturing the structural core board as described in claim 29, characterized in that, When splicing the wooden strips (25), multiple wooden strips (25) are connected into a splicing board by inserting connectors (24) through the wooden strips (25).

31. The method for fabricating a structured chip as described in claim 29, characterized in that, Before splicing the wooden strips (25), the method further includes: providing at least one through groove (214) on the outer peripheral surface of the wooden strips (25) to connect the two end faces.

32. The method for fabricating a structured chip as described in claim 29, characterized in that, When stacking the splicing panels, one or more outer side panels (23) are provided on the topmost splicing panel, and one or more outer side panels (23) are provided under the bottommost splicing panel.

33. The method for fabricating a structured chip as described in any one of claims 29 to 32, characterized in that, When stacking the splicing panels, one or two spacer plates (22) are sandwiched between two adjacent splicing panels.

34. A method for manufacturing a structural core board, characterized in that, Includes the following steps: Multiple wooden strips (25) are provided. Each wooden strip (25) includes two opposite end faces and an outer peripheral face. The distance between the two end faces of each wooden strip (25) is approximately equal or equal. Multiple wooden strips (25) are spliced ​​together in sequence by splicing the outer peripheral faces to form a splicing board of the required size. Multiple spacers (22) are provided, and the spacers (22) and the splicing plate are alternately stacked and connected to form a composite unit of the required size; Along the length of the wooden strip (25), the composite unit is cut according to the required thickness of the structural core board (20) to obtain multiple structural core boards (20).

35. A method for manufacturing a structural core board, characterized in that, Includes the following steps: Multiple wooden strips (25) are provided, each wooden strip (25) having two opposing end faces and an outer peripheral surface. At least one groove (213) is provided on the outer peripheral surface of the wooden strip (25), and the distance between the two end faces of each wooden strip is approximately equal or equal. Multiple wooden strips (25) are spliced ​​together on their outer periphery to form a hollow unit group. Each unit group is then spliced ​​together in sequence on its outer periphery to form a splicing unit of the required size. Multiple splicing units are stacked and connected to form a composite unit of the required size; Along the length of the wooden strip (25), the composite unit is cut according to the required thickness of the structural core board (20) to obtain multiple structural core boards (20).

36. The method for manufacturing the structural core board as described in claim 35, characterized in that, Also includes: One or two spacer plates (22) are sandwiched between two adjacent splicing units.

37. The method for manufacturing the structural core board as described in claim 35, characterized in that, Also includes: One or more outer side plates (23) are provided on the outermost periphery of the composite unit, or one or more outer side plates (23) are provided on the opposite sides of the composite unit.

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