WO2019206294A1 - 一种人造结构板的板芯及其制造方法 - Google Patents

一种人造结构板的板芯及其制造方法 Download PDF

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Publication number
WO2019206294A1
WO2019206294A1 PCT/CN2019/084634 CN2019084634W WO2019206294A1 WO 2019206294 A1 WO2019206294 A1 WO 2019206294A1 CN 2019084634 W CN2019084634 W CN 2019084634W WO 2019206294 A1 WO2019206294 A1 WO 2019206294A1
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WO
WIPO (PCT)
Prior art keywords
core
plate
bearing body
reinforcing rib
diagonally
Prior art date
Application number
PCT/CN2019/084634
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English (en)
French (fr)
Inventor
孙毅
陈皓
吴健
Original Assignee
镇江市阳光西尔新材料科技有限公司
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Publication of WO2019206294A1 publication Critical patent/WO2019206294A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/06—Manufacture of central layers; Form of central layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/308—Heat stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness

Definitions

  • the invention relates to the field of manufacturing artificial boards, in particular to a core of artificial structural boards and a processing method thereof.
  • wood-based panels Due to the shortage of timber resources and the high price of solid wood, wood-based panels have emerged as a material for furniture, wooden doors, flooring and architectural decoration. At present, the commonly used wood-based panels are mostly particleboard, fiberboard, plywood and laminated timber. The above-mentioned wood-based panels are based on shavings, fibers and veneers, and are pressed by high temperature and high pressure by applying adhesive. The production cost is low, but there are also many defects: the product has large weight and is inconvenient to handle; the structural strength of the finished board is low; the anti-static deformation ability is poor; the amount of adhesive is high, resulting in high formaldehyde content and environmental protection. Production requirements.
  • Chinese patent CN103659998A discloses a sheet material which is formed by sticking a plurality of sheet metal units, each of which is composed of a square wooden board, and is evenly spaced on one side or two opposite sides of the square wooden board. The slots are cut and the ends of the slot extend to the adjacent sides. The formation of the plate is only formed by grooving on the side of the square block to extend into a slab. This structure is relatively simple. When subjected to a relatively complicated external force, no other structure is matched with the groove structure, so that The force cannot be balanced, resulting in a low strength of the slab and easy damage.
  • Chinese patent CN202021653U discloses a technology named grid hollow core wood-based panel, which solves the problems of high density of existing artificial board and large internal stress of the board, but also has problems of narrow raw material range and low structural strength.
  • Chinese patent CN104070567B discloses a structural plate and a processing method for the core and the core thereof, and specifically discloses a structural plate core and a processing method with large bearing capacity and high structural rigidity, but the processing method is not convenient for mechanization. It is laborious and labor intensive.
  • the flame retardant problem of wood-based panels is a common concern and urgent problem to be solved in China and the world.
  • Chinese patent CN202021651U discloses a multifunctional flame-retardant artificial board, the technical proposal is to apply upper and lower flame-retardant layers on the upper and lower surfaces of the wooden center layer, and cover the upper and lower flame-retardant layers, although the solution The flame retardant problem of the wood-based panel, but there is still a problem of low structural strength of the wood-based panel.
  • the technical problem to be solved by the present invention is to provide a wood-based panel core with high structural strength, convenient processing method and high production efficiency, and can also be applied to the field of fire-retardant panels.
  • the invention provides a core of a man-made structural board, characterized in that the core comprises a plurality of sets of core strip units, the core strip unit has a multi-layer structure along the length of the core, each set of core units along the board
  • the length direction of the core includes at least a double transverse bearing body extending along the length of the core and a diagonally inclined structure disposed obliquely with respect to the double transverse bearing body, each set of core strip units sequentially including double lateral bearing along the length direction of the core Pressing body, diagonally pulling structure, and diagonally pulling structure, and laminating and bonding the double lateral bearing body, the diagonally pulling structure and the diagonally pulling structure;
  • the double transverse bearing body is composed of two lateral bearing bodies end-end bonding;
  • the core strip unit repeats the laminated core unit to form a core along the length of the core.
  • the transverse bearing body comprises a plurality of parallel and spaced slats extending along the length of the core, the diagonally-drawn structure comprising a plurality of slats inclined and spaced relative to the transverse bearing body
  • the projection of the slats of the corresponding positions of the adjacent two layers of the diagonally-drawn structure in the core strip unit in the stacking direction of the multi-layer structure is herringbone or figure-eight or cross-shaped.
  • the spacing between the transverse pressure receiving bodies is less than the thickness of the transverse bearing body
  • the spacing between the strips of the diagonally-drawn structure is less than the thickness of the diagonally-drawn structure
  • the end of the double transverse bearing body is bonded by the inserted first reinforcing rib; preferably, the first reinforcing rib comprises at least one thin plate or a multi-layer ply, according to the core
  • the required width and strength are used to adjust the number of layers of the first rib.
  • the fiber texture direction of the thin plate is perpendicular to the grain direction of the transverse bearing body to which it is bonded.
  • the fiber texture of the outermost sheet of the first reinforcing rib is required to hang in the direction of the fiber texture of the transverse bearing body to which it is bonded.
  • the number of layers of the plurality of sheets contained in the first reinforcing rib is an odd number, it is preferable that the fiber texture direction of the outermost sheet is perpendicular to the fiber texture direction of the transverse bearing body to which it is bonded, and between the plurality of sheets is required.
  • the fiber textures are oriented perpendicular to each other.
  • a second reinforcing rib may be added to the head end of the cable-stayed structure to adhere to the diagonally-drawn structure, and the second reinforcing rib includes at least one layer of a thin plate or a multi-layered plywood.
  • the function of the second reinforcing rib on the one hand enhances the strength, on the other hand, as a connecting layer of the diagonal pulling mechanism and the double transverse bearing body, the bonding area is increased, which is advantageous for bonding.
  • the inclined direction of the slats of the cable-stayed structure is at an angle of 45° to the surface of the core plate.
  • the adjacent diagonally-drawn structures have the same width in the lamination direction of the multi-layer structure, and the lateral pressure-bearing bodies have the same width in the lamination direction of the multi-layer structure.
  • the slat spacing of the transverse bearing body is smaller than the slat spacing of the diagonally drawn structure.
  • the slats of the diagonally-drawn structure are equally spaced, and the slats of the transverse bearing body are equally spaced.
  • the fire-proof material for flame retardant is sprayed or filled on the lateral bearing body, the first reinforcing rib, the second reinforcing rib, the third reinforcing rib, the inclined structure surface or/and the spacing in the core strip unit .
  • the core In order to increase the strength of the core, it is also possible to break the two at any position on the diagonally-drawn structure and the diagonally-drawn structure, and insert the third reinforcing rib at the position of the disconnection, the direction of the third reinforcing rib and the length direction of the core. Parallel or inclined, when a plurality of third reinforcing ribs are inserted, the third reinforcing rib is used as an edge to form a mesh structure, and the strength of the core is integrally raised.
  • the core further comprises a fourth reinforcing rib structure along the length or width direction of the artificial board.
  • the invention also provides a method for manufacturing a wood-based panel core, comprising the following steps:
  • Step a a plurality of strips of the same length and thickness are parallel to each other according to the fiber texture, and are horizontally arranged in a horizontal direction into a square flat plate (1);
  • Step b stacking two identical plates (1) into a square plate (2) in the same fiber texture direction;
  • a first reinforcing rib may be added between the two quick plates (1), and the direction of the fiber texture when connected to the plate (1) is perpendicular to the plate (1);
  • Step c the two sides of the plate (2) in the direction of the slat fiber texture to open a plurality of grooves parallel to each other and parallel to the fiber texture direction, forming a plate (3);
  • Step d a plurality of strips having the same length and thickness are parallel to each other according to the fiber texture, and are horizontally arranged in a horizontal direction into a square flat plate (1), and the two identical plates (1) are oriented perpendicular to each other.
  • Step e cutting the plate (4) along a diagonal direction of 45° to form two triangular plates (5);
  • Step f Arranging the four plates (5) on the plate (3) so that the oblique sides of the four plates (5) coincide with the sides of the plate (3) and are bonded to the plate (3) to form a plate (6). );
  • a second reinforcing rib may be added between the plate (3) and the plate (5);
  • Step g cutting the plate (6) to a certain thickness to form one or more sets of core strip units, and repeatedly stacking the plurality of sets of core strip units to form a core of the artificial structural board.
  • the side length of the plate (3) is 1.2 m, and the side length of the plate (4) is 0.85 m.
  • the groove depth on the plate (3) is less than the corresponding slat thickness.
  • step h is further included: inserting the first reinforcing rib after the step a and before the step b, the fiber texture direction of the outermost sheet of the first reinforcing rib is perpendicular to the board (1) .
  • step i is included: after the step c and before the step d, the second reinforcing rib is inserted.
  • the manufacturing method further comprises the step j: inserting a third reinforcing rib after the step f and before the step g, the specific process is along the surface of the plate (6)
  • the length direction or the width direction of the core is grooved at different surface positions (6), the depth of the groove is less than or equal to the thickness of the plate (4), and the corresponding slats are filled in the groove, thereby forming a plurality of third Reinforcement.
  • the fireproof material for flame retardant may be sprayed or filled on the lateral bearing body, the inclined structure surface or/and the spacing in the core unit.
  • the contact area between the axial direction and the vertical bearing body is small, which causes the fastening force to be small, the object cannot be fixed, and even the structure of the vertical bearing body is seriously damaged.
  • This problem can be avoided by using a double transverse bearing body.
  • the slab structure of the present invention there are double transverse bearing bodies and diagonally-drawn structures, no matter where the fastening position is selected in the slab, when the fastener is inserted into the wood board, The axial direction can be in good contact with the lateral bearing body or the cable-stayed structure, the fastening force is increased, and the fastening effect can be better.
  • the present invention Since the present invention does not have a vertical bearing body, it is not necessary to rotate the slab by 90 degrees when performing the process manufacturing groove, as in the prior art, as shown in steps a to c, only two plates (1) are required.
  • the phase stacking can be performed without the need to rotate 90°, and the pipeline can be directly grooved on the machine.
  • the present invention omits a process of rotating the slab by 90 degrees, on the one hand saving labor costs, and on the other hand, greatly improving production efficiency.
  • the core composed of double transverse bearing body, diagonally-stayed structure and diagonally-stayed structure has high rigidity of the core structure, good mechanical balance inside the core strip unit, strong bearing capacity, and is not easy to be distorted and deformed.
  • the wood utilization rate is high, and the amount of adhesive used is small, and the environment is green; the preparation method can be mechanized, the process is simple, and the production efficiency is high.
  • the presence of the first reinforcing ribs is advantageous for increasing the strength of the core and reducing the deflection of the core, thereby reducing the deformation rate. Since the direction of the wood grain of the rib is perpendicular to the grain direction of the lateral bearing body, when subjected to a strong external pressure, the lateral bearing body will undergo bending deformation when pressed, but the grain direction of the rib is perpendicular to the direction of the external pressure. It is not easy to bend and deform, but it plays a supporting role for the bending deformation of the lateral bearing body, enhances the strength of the core, and reduces the deformation rate of the core due to heat and moisture.
  • the core is repeatedly combined by the double transverse bearing body and the two diagonally-stayed structures, it is difficult to achieve a whole board according to the existing process size, and generally the height of the door panel is larger than 2m, according to the existing technology, the longest dimension of the double transverse bearing body and the diagonally-drawn structure can only reach 1.2m. If it needs to reach the size of 2m, it is bound to use two plates for splicing, which will lead to the longitudinal direction of the core. The compressive strength is reduced. When there is a first reinforcing rib, an entire reinforcing rib can be used, such as a length of 2 m, 2.2 m, 2.4 m, etc., to increase the longitudinal compressive strength of the core.
  • the presence of the first reinforcing ribs is advantageous for increasing the bonding area of the core and the panel, making the final board stronger and not easy to degumming. Because the core is not the final product, the finished product needs to bond the upper and lower panels to the core. When the first reinforcing rib is present, the bonding area is increased, so that the finished board is more firmly bonded and not easy. Degumming.
  • the presence of the second reinforcing rib is advantageous for increasing the strength of the core.
  • the presence of the second reinforcing ribs is advantageous for increasing the bonding area of the core and the panel, so that the final plate is stronger and not easily degummed. Because the core is not the final product, the finished product needs to bond the upper and lower panels to the core. When there is a second reinforcing rib, the bonded area is increased, so that the finished board is more firmly bonded and not easy. Degumming.
  • the presence of the third reinforcing rib is advantageous for increasing the strength of the core.
  • the third reinforcing rib is used as a side to form a lattice structure, so that the bearing capacity along the longitudinal direction of the core increases.
  • the bending and compressive strength of the slab is further increased, thereby integrally increasing the strength of the core.
  • the core Due to the fire-proof material in the core, coupled with the special structure of the core, it has a good flame retardant effect.
  • the core can also be applied to wood-based panel flame retardant.
  • FIG. 1 is a perspective view and a front view of a core strip unit according to an embodiment of the present invention, FIG. 1a is a schematic perspective view, and FIG. 1b is a front view;
  • FIG. 2 is a schematic view of a lateral bearing body in the core structure of the embodiment of the present invention, FIG. 2a is a front view of the lateral bearing body, and FIG. 2b is a projection view of the transverse bearing body along the direction A;
  • FIG. 3 is a schematic view of a cable-stayed structure in a core structure according to an embodiment of the present invention
  • FIG. 3a is a front view of the diagonally-tilted structure (20) and the diagonally-tilted structure (21)
  • FIG. 3b is a diagonally-drawn structure (20) along the direction B.
  • Projection view, Figure 3c is a projection view of the diagonally-drawn structure (21) along direction C;
  • FIG. 4 is a schematic perspective view of a three-dimensional structure of a man-made core in the embodiment of the present invention
  • FIG. 4a is a three-dimensional structure diagram of a man-made structural core
  • FIG. 4b is a front view of the man-made structural core
  • FIG. 5 is a schematic structural view of a first reinforcing rib according to an embodiment of the present invention
  • FIG. 5a1 is a three-dimensional structural diagram of a first reinforcing rib including a thin plate, wherein 5a2 is a fiber texture direction of the first reinforcing rib and the lateral bearing body.
  • Figure 5b1 is a three-dimensional structure diagram of a first reinforcing rib containing two layers of thin plates, 5b2 is the first reinforcing rib of the thin plate and the transverse bearing body of the fiber texture direction is perpendicular to each other;
  • Figure 5b1 is the first containing two layers of thin plates Schematic diagram of the three-dimensional structure of the rib, 5b2 is the first rib and the transverse pressure body is perpendicular to the fiber texture direction;
  • FIG. 5c1 is a three-dimensional structure diagram of the first rib containing five sheets, and 5c2 is the first rib The direction of the fiber texture of the thin plate and the transverse bearing body are perpendicular to each other;
  • Figure 6 is a front elevational view showing a structure including a first reinforcing rib according to an embodiment of the present invention
  • Figure 6a is a front view of a first reinforcing rib including a thin plate
  • Figure 6b is a front view of a first reinforcing rib containing three thin plates
  • Figure 6c is a front view of the first reinforcing rib containing five sheets;
  • FIG. 7 is a schematic view showing a structure including a second reinforcing rib in the embodiment of the present invention
  • FIG. 7a1 is a schematic perspective view of a second reinforcing rib including a thin plate
  • 7a2 is a plan view of a second reinforcing rib including a thin plate
  • 7b1 is a three-dimensional structure diagram of a second reinforcing rib containing two thin plates
  • 7b2 is a top view of a second reinforcing rib containing two thin plates
  • FIG. 7c1 is a diagonally-drawn structure (20) and a diagonally-drawn structure including a second reinforcing rib
  • 21) is a schematic view of a three-dimensional structure
  • FIG. 7c2 is a front view of a three-dimensional structure of a diagonally-drawn structure (20) and a diagonally-drawn structure (21) of a second reinforcing rib;
  • Figure 8 is a front elevational view showing the structure of a core strip unit including a first reinforcing rib and a second reinforcing rib according to an embodiment of the present invention
  • Figure 8a is a front view including a first reinforcing rib
  • Figure 8a is a first reinforcing rib and a second reinforcing Main view of the rib;
  • FIG. 9 is a front view of a diagonally-drawn structure including a third reinforcing rib according to an embodiment of the present invention
  • FIG. 9a is a front view of a diagonally-drawn structure including a third reinforcing rib, the direction of the reinforcing rib being parallel to the direction of the core
  • FIG. 9b is the same
  • the front view of the diagonally pulled structure of the three reinforcing ribs, the direction of the reinforcing ribs is inclined with the direction of the core;
  • FIG. 10 is a schematic structural view of an artificial board core according to an embodiment of the present invention, wherein the core of the artificial structural board includes a plurality of third reinforcing ribs and constitutes a grid structure;
  • Figure 11 is a schematic view showing the structure of a slat corresponding to the position of the adjacent two-layer diagonally-stayed structure according to the embodiment of the present invention, wherein Figure 11a is a herringbone shape, Figure 11b is a cross-shaped shape, and Figure 11c is a figure-eight shape;
  • FIG. 12 is a schematic structural view of a plate (1) in an embodiment of a method for manufacturing a core of the present invention, and FIG. 12a is a schematic plan view of a plan view of the plate; FIG. 12b is a schematic side view of the structure in the direction of D in FIG. 12a;
  • FIG. 13 is a schematic structural view of a plate (2) in an embodiment of a method for manufacturing a core of the present invention
  • FIG. 13a is a schematic plan view of a plan view of the plate
  • FIG. 13b is a schematic view of a structure in a direction D in FIG.
  • Figure 14a is a schematic structural view of a plate (3) in an embodiment of a method for manufacturing a core of the present invention, wherein a-1 is a plan view and a-2 is a side view;
  • Figure 14b is a schematic structural view of a plate (4) in an embodiment of a method for manufacturing a core of the present invention, wherein b-1 is a plan view and b-2 is a side view;
  • FIGS. 15a, b are cutting directions of the plate (4) in the embodiment of the core manufacturing method of the present invention, and Figs. 15c, d are structural views of the plate (5);
  • 16a-d are schematic structural views of a plate (6) in an embodiment of a method for manufacturing a core of the present invention, wherein a-1 is a top view, and a-2 is a side view;
  • Figure 17 is a schematic view showing the structure of a core of a core unit in the embodiment of the method for manufacturing a core of the present invention.
  • Fig. 18 is a view showing the first reinforcing rib of the plate (3) in the embodiment of the method for manufacturing a core of the present invention, wherein 18a is a plan view and 18b is a side view.
  • Fig. 19 is a view showing the second reinforcing rib of the plate (6) in the embodiment of the method for manufacturing a core of the present invention, wherein 19a is a plan view and 19b is a side view.
  • Figure 20 is a schematic view showing the third reinforcing rib of the plate (6) in the embodiment of the method for manufacturing a core of the present invention, wherein 20a is a plan view and 20b is a side view.
  • L1 thickness of the lateral bearing body
  • L2 depth of the groove after the lateral bearing body is grooved
  • L3 thickness of the diagonally-drawn structure
  • L4 depth of the groove after the grooved structure is grooved.
  • 200 a core strip unit
  • the artificial board core provided by the present invention includes a plurality of sets of core strip units.
  • 1a and 1b are schematic structural views of a core strip unit of the present invention, which are respectively a schematic view of a three-dimensional structure of a man-made structural core, and a front view.
  • the core strip unit has a multi-layer structure along the length of the core, and each set of core units is along the core
  • the longitudinal direction includes a lateral bearing body (10) extending along the longitudinal direction of the core, a lateral bearing body (11), a diagonally inclined structure (20) inclined with respect to the lateral bearing body, and a (slanted structure (21) .
  • FIG. 2a is a front view of the transverse bearing body and FIG. 2b is a projection view of the transverse bearing body in the direction A, wherein the transverse bearing body comprises a plurality of parallel and spaced slats extending along the length of the core, ie The transverse bearing body is grooved, and the interval depth (ie groove depth) L2 of the slats is smaller than the thickness L1 of the transverse bearing body (Fig. 2a), and the direction of the fiber texture of the transverse bearing body is parallel to the direction of the groove (Fig. 2b) ).
  • the lateral bearing body is defined such that the side of the slot is defined as the head end and the ungrooved side is defined as the tail end, as shown in Fig. 2a.
  • the double transverse bearing body (12) is formed by laminating and gluing the trailing ends of the transverse bearing body (10) and the lateral bearing body (11).
  • FIG. 3a is a front view of the diagonally-drawn structure
  • FIG. 3b is a projection of the diagonally-drawn structure along the direction B
  • FIG. 3c is a projection of the diagonal-drawn structure along the direction C
  • the diagonally-drawn structure includes a plurality of parallels extending along the length of the core
  • the slats are arranged at intervals, that is, the inclined structure is slotted
  • the slat spacing depth L3 is smaller than the thickness L4 of the diagonally-drawn structure.
  • the fiber texture direction of the cable-stayed structure is parallel to the direction of the groove.
  • the cable-stayed structure is defined here, with one side of the slot defined as the head end and the un-slotted side defined as the tail end.
  • the diagonally-drawn structure is disposed obliquely with respect to the lateral bearing body, and the diagonally-drawn structure comprises a plurality of slats inclined and spaced apart from the transverse bearing body, see FIGS. 3b and 3c, respectively, projections corresponding to the direction B and the direction C Schematic, it can be seen from the figure that the direction of the groove of the two diagonally drawn structural plates is inclined with respect to the direction of the groove of the lateral bearing body.
  • Each group of core strip units is composed of a transverse bearing body (10), a lateral bearing body (11), a diagonally-drawn structure (20), and a diagonally-drawn structure (21) in the longitudinal direction of the core of the core, and has a total of four.
  • the end of the cable-stayed structure (21) is laminated, thereby constituting the core unit (200). See Figure 4.
  • the core strip unit is repeatedly laminated and laminated to form the core of the artificial structural board along the length of the core, as shown in FIG. 4, and FIG.
  • FIG. 4 shows the core of the artificial structural board composed of three core units (200).
  • 4a is a schematic view of the three-dimensional structure of the man-made structural core
  • FIG. 4b is a front view of the three-dimensional structure of the artificial core.
  • the core of the core is composed of three sets of core strip units, and the transverse bearing body of a set of core strip units is bonded in the order of the diagonally pulled structure of the upper set of core strip units.
  • the number of the core strip units in the core is set according to the length or width of the artificial board, and the repeating manner of the core unit in the core depends on the specific application of the sheet, and this embodiment is only an example. .
  • the tail end of the lateral bearing body (10) is connected with the tail end of the lateral bearing body (11) to form a double transverse bearing body, and in order to increase the strength, the end end of the lateral bearing (10) and the lateral direction can be
  • the rear end of the bearing body (11) is inserted into the first reinforcing rib, and the first reinforcing rib includes at least one thin plate.
  • the number and thickness of the sheets can be increased or decreased as needed. Specifically, it may be a thin plate to an N-layer thin plate (N is an integer greater than 1). See Figure 5a1, Figure 5a2, Figure 5b1, Figure 5b2, Figure 5c1 and Figure 5c2.
  • Figure 5a1 shows a reinforcing rib comprising a thin plate (30), between which a thin plate (30) is inserted between the trailing end of the transverse bearing body (10) and the trailing end of the transverse bearing body (11), wherein a thin plate is required.
  • the direction of the fiber texture of (30) is perpendicular to the direction of the fiber texture of the end faces of the lateral bearing bodies (10) and (11). See Figure 5a2.
  • the sheet (30) and the transverse bearing body The fiber texture directions of the end faces of (10) and (11) are perpendicular.
  • Figure 5b1 is a two-layered rib comprising two layers of thin plates (30) and (31) between the trailing end of the transverse bearing body (10) and the trailing end of the transverse bearing body (11).
  • the fiber texture direction of the sheets (30) and (31) is perpendicular to the fiber texture direction of the end faces of the lateral bearing bodies (10) and (11), see Fig. 5b2, as can be seen from Fig. 5b2, the sheet (30) And (31) perpendicular to the fiber texture direction of the end faces of the lateral bearing bodies (10) and (11).
  • Figure 5c1 is a five-layer thin plate containing a reinforcing rib, and five thin plates (30), (32), (33) are inserted between the trailing end of the lateral bearing body (10) and the trailing end of the lateral bearing body (11). ), (34), (35), wherein the fiber texture direction of the sheets (30) and (35) is required to be perpendicular to the fiber texture direction of the end faces of the lateral bearing bodies (10) and (11), see Fig. 5c2, As can be seen in Fig. 5c2, the thin plates (30) and (35) are perpendicular to the fiber texture direction of the trailing end faces of the lateral bearing bodies (10) and (11). The fiber directions of the five-layer sheets (30), (32), (33), (34), and (35) are perpendicular to each other.
  • Each group of core strip units is laminated and laminated in the longitudinal direction of the core by a transverse bearing body (10), a first reinforcing rib, a transverse bearing body (11), a diagonally-drawn structure (20), and a diagonally-drawn structure (21).
  • composition Referring to Fig. 6, Fig. 6a is a front view of a double transverse bearing body of a first reinforcing rib containing a thin plate, and Fig. 6b is a front view of a double transverse bearing body of a first reinforcing rib containing three thin plates, Fig. 6c It is a front view of a double transverse bearing body of a first reinforcing rib containing five sheets of sheet.
  • the fiber texture direction of the thin plate in which the first reinforcing rib and the trailing end of the lateral bearing body are laminated in all embodiments of the present invention is required to be perpendicular to the fiber texture direction of the lateral bearing body, which is not perpendicular to the transverse bearing.
  • the direction of the fiber texture of the sheet which is directly laminated on the end face of the pressing body can be determined according to the specific situation. For example, when the number of layers of the first reinforcing rib is an odd layer, the fiber texture direction of the contacted sheet is perpendicular to the transverse bearing body.
  • the joint of the double transverse bearing body and the cable-stayed structure is inserted into the second reinforcing rib as a connecting layer of the double transverse bearing body and the cable-stayed structure.
  • the second reinforcing rib comprises at least one thin plate, and the specific number of layers and the thickness of the thin plate can be arbitrarily increased or decreased according to actual conditions, see FIG. 7a1 and 7a2 are respectively a perspective structural view and a front view of a second reinforcing rib including a thin plate, and the thin plate (40) is superposed with the head end of the diagonally-drawn structure (20).
  • 7a2 are respectively a perspective view and a front view of a second reinforcing rib including a thin plate, and the thin plate (40) is superposed with the head end of the diagonally-drawn structure (20).
  • 7b1 and 7b2 are respectively a perspective structural view and a front view of a second reinforcing rib containing two thin plates, the first thin plate (41) being superposed with the first thin plate (40), and the first thin plate (40) Superimposed on the head end of the cable-stayed structure (20).
  • 7c1 and 7c2 are a perspective structural view and a front view, respectively, of a diagonally-drawn structure of a second reinforcing rib of a single-layered thin plate.
  • the cable-stayed structure (20) and the head end of the cable-stayed structure (21) respectively bond a second reinforcing rib containing a thin plate (41).
  • Each group of core strip units is sequentially arranged by a transverse bearing body (10), a first reinforcing rib, a transverse bearing body (11), a second reinforcing rib, a diagonally-drawn structure (20), and a diagonally-stayed structure (21) along the length of the core. ), the second reinforcing rib is laminated and bonded.
  • Figure 8 is a front elevational view of a core structure including a first reinforcing rib and a second reinforcing rib.
  • Fig. 8a is a front view of a man-made structural core having a first rib of a thin plate and a second rib containing a thin plate.
  • Figure 8b is a front elevational view of a man-made structural core having a first stiffener of three sheets and a second stiffener comprising a thin sheet.
  • the entire structure of the diagonally-drawn structure (20) and the diagonally-drawn structure (21) is integrated.
  • the third reinforcing rib is filled. Referring to Fig. 9, the direction of the reinforcing rib is parallel or inclined with respect to the longitudinal direction of the core, and the direction of the third reinforcing rib is parallel to the length of the core, as shown in Fig. 9a.
  • a plurality of positions in the cable-stayed structure are integrally broken to form a groove, and the groove after the disconnection is filled with the third reinforcing rib (51), and the third reinforcing rib is a slat.
  • Fig. 9b shows that the direction of the third reinforcing rib is inclined with respect to the longitudinal direction of the core, and the direction of the groove of the diagonally drawn structure is now inclined with respect to the longitudinal direction of the core.
  • each group of core strip units is laminated and laminated in the longitudinal direction of the core by a transverse bearing body (10), a transverse bearing body (11), a diagonally-drawn structure (20), and a diagonally-drawn structure (21).
  • the diagonally-drawn structure (20) and the diagonally-drawn structure (21) are arranged with a plurality of third reinforcing ribs (51), thereby constituting the core-bar unit (200), see FIG. 10
  • the core includes three sets of core-bar units, As can be seen from FIG. 10, a plurality of sets of third reinforcing ribs arranged on the diagonally-drawn structure constitute a plurality of meshes, see the dotted frame portion in FIG.
  • these third reinforcing ribs constitute a mesh structure, on the one hand, when When the core is subjected to an external force, it can disperse the force and make its force quickly reach equilibrium.
  • the presence of a plurality of third reinforcing ribs forms a mutually supporting structure, further increasing the lateral strength of the core, and further reducing the deformation rate of the core.
  • the shape and composition of the lateral bearing body and the diagonally-drawn structure are not limited to the slats in the present embodiment, and may also be other non-slatted structures, such as plates, plates, For the integral plate or the like, only the structural composition can conform to the requirement that the transverse bearing body extends along the longitudinal direction of the core and the inclined structure of the diagonally inclined structure is inclined with respect to the transverse bearing body.
  • the number of the core strip units in the core is required according to the length or width of the artificial board, and the repeating manner of the core unit in the core depends on the specific application of the sheet, and this embodiment is only An example.
  • core length direction may also be the width direction of the core in a specific embodiment.
  • transverse bearing body and the diagonally-drawn structure constitute the lamination direction of the core unit. The direction in which the core unit is laminated to the core is the same.
  • the double transverse bearing body of the core unit of the invention functions as a frame, can withstand the tensile force and pressure of the artificial board, and the diagonal pulling structure and the frame structure work together, and can effectively decompose the external force received by the artificial board.
  • the spacing of the lateral pressure-bearing slats in the core strip unit is adjusted according to the processing technology and the actual application of the sheet material, and the spacing between adjacent slats may be equal or unequal.
  • the slat spacing of the transverse bearing bodies is equal.
  • the slat spacing of the cable-stayed structure in the core strip unit can be adjusted according to the processing technology and the actual application of the board material, and the slats in the same layer of the diagonally-drawn structure can be parallel to each other, and the spacing between adjacent slats can be They may be equal or unequal; the direction and angle of inclination of the slats in the same layer of the diagonally-drawn structure relative to the plane of the core plate may be the same or different.
  • the slats in the same layer of the diagonally-drawn structure have the same angle of inclination with respect to the face of the core plate, preferably 45°.
  • the slat spacing of the lateral bearing body is smaller than the slat spacing of the diagonally drawn structure, which is advantageous for increasing the bonding area and improving the stability of the core.
  • the transverse bearing body and the diagonally-drawn structure of the core strip unit have the same width in the laminating direction.
  • the transverse bearing body and the diagonally-drawn structure have the same width in the stacking direction.
  • Each set of core strip units of the present invention includes two adjacent diagonally drawn structures.
  • the projection of the slats corresponding to the positions in the adjacent two-layer diagonally-drawn structures may be chevron-shaped or A figure-eight or cross-shaped distribution, as shown in Figure 11.
  • Figure 11 is a schematic view showing the structure of the slats of two adjacent layers of the diagonally-drawn structure projected in the direction of the lamination,
  • Figure 11a is a herringbone shape,
  • Figure 11b is a cross-distribution shape, and
  • Figure 11c is a figure-eight shape.
  • the fire-retardant flame retardant may be sprayed or filled on the surface of the transverse pressure body, the first reinforcing rib, the second reinforcing rib, the third reinforcing rib, the inclined structure or/and the spacing of the core unit of the present invention. material.
  • the invention also provides a method for manufacturing a artificial board core, the core comprising a plurality of sets of core strip units, the core strip unit having a multi-layer structure along the length of the core, each set of core units along the length of the core Each includes a transverse bearing body extending along the length of the core and a diagonally inclined structure disposed obliquely with respect to the transverse bearing body, and each set of the core strip unit is sequentially provided by the transverse bearing body and the lateral bearing body along the length direction of the core
  • the cable-stayed structure and the diagonal-stayed structure are laminated and bonded, and the core strip unit is repeatedly laminated and laminated to form a core along the length of the core. Specific steps are as follows:
  • Step a A plurality of slats of the same length and thickness are parallel to each other and are placed in a horizontal direction without gaps into a square plate (1):
  • Fig. 12 is a schematic plan view showing the structure of the panel (1) and a side view of the structure in the direction of the D. It should be noted that the width of each slat is not required in the specific embodiment, and preferably the width of each slat is the same. The length and thickness of the slats are selected according to the raw material conditions and the applicable conditions of the board. The slats are placed closely and seamlessly, as shown in FIG.
  • Step b Stack two identical plates (1) into a square plate (2) in the same fiber texture direction:
  • Figure 13 is a schematic plan view of the board surface of the board (2) and a structure diagram of the direction D in Figure 12, in which a plurality of strips having the same length and thickness are horizontally arranged on the board (1) without gaps, in the specific embodiment
  • the width of each slat is not required, and preferably each slat has the same width.
  • the length and thickness of the slats are selected according to the raw material conditions and the applicable conditions of the board. It should be noted that, in order to save wood, the length of each slat is preferably the same as the length of the slats in the board (1), and the thickness and width may be the same as or different from the slats in the board (1).
  • Step c Opening a plurality of square plates (2) along the direction of the slat fiber texture into a plurality of grooves parallel to each other and parallel to the direction of the fiber texture to form a plate (3):
  • Figure 14a is a schematic plan view of the plate surface of the plate (3) and a structural view of the direction D in Figure 12, the plate (3) is formed by grooving in the direction of the fiber texture on both sides of the plate (2), wherein the direction of the groove Parallel to the direction of the fiber texture, the depth and width of the groove and the number of grooves are determined according to the occasion and strength requirements of the core application.
  • the groove depth on the plate (3) is less than or equal to the thickness of the corresponding slat, as shown in the figure. Shown in 14a.
  • Step d stacking a plurality of strips having the same length and thickness in parallel with each other according to the fiber texture, and placing them in a horizontal direction without gaps into a square flat plate (1), and stacking the two identical plates (1) in mutually perpendicular fiber texture directions.
  • the structure of the plate (4) is shown in Fig. 14b. It should be noted that the width, depth and number of slots in the plate (4) may be the same as the plate (3), and may not be completely different from the plate (3), as long as the plate
  • the diagonal length of (4) is less than or equal to the plate (3), and the manufacturing method of the plate (4) and the plate (3) is the same, and the groove depth on the preferred plate (4) is less than or equal to the thickness of the corresponding slat. .
  • Step e Cut the plate (4) along the diagonal direction of 45° to form two triangular plates (5):
  • Figures 15(a) and (b) are schematic views of the cutting direction of the plate (4). There are two ways to cut the same plate (4) in the diagonal direction of 45°, and the formed plate (5) also has two structures. The form is shown in Figures 15(c) and (d). It should be noted that both cutting directions are applicable to the core manufacturing method of the present invention, and are all within the protection scope of the present application.
  • Step f Arranging the four plates (5) on the plate (3) so that the oblique sides of the four plates (5) coincide with the sides of the plate (3) and are bonded to the plate (3) to form a plate (6). ), that is, the plate (6) forms a core strip unit at this time;
  • Figure 16 is a schematic view showing the structure of the plate (6). Since the plate (4) can be formed into two different types of plates (5), the structure of the plate (6) is different depending on the cutting and the selection plate (5). There are four variants. Wherein, if four plates (5) formed by the same cutting direction are used for the two plates (4), the structure of the formed plate (6) is shown in Figures 16(a) and 16(b); The plate (4) has two plates (5) formed in two cutting directions, and the structure of the formed plate (6) is schematically shown in Fig. 16(c) and Fig. 16(d).
  • the diagonal side of the board (5) that is, the diagonal length of the board (4) is smaller than the side length of the board (3), the oblique side of the board (5) and the side of the board (3) are arranged.
  • the oblique side of the board (5) and the side of the board (3) are arranged.
  • Step g laminating a plurality of sets of plates (6) in a certain order to form a core of the artificial structural board, see FIG. 17:
  • the board (6) shown in FIG. 16 only includes a set of four-layer structure, that is, a set of core strip units, and in practical applications, a plurality of boards (6) may be combined according to the length and width of the core to form.
  • the core strip unit prepared according to the above steps is repeatedly laminated and bonded along the length or width direction of the core to prepare a wood-based panel core having a certain length and width.
  • orientation words used in the manufacturing process of the present invention are shown in FIG. 17, wherein the orientation words “upper” and “lower” refer to FIG. 17 as the reference, and the upper and lower directions are perpendicular to the board surface.
  • orientation words are established on the basis of the drawings of the specification, and their appearance should not affect the scope of the invention.
  • the side length of the plate (3) is 1.2 m and the side length of the plate (4) is 0.85 m.
  • a first reinforcing rib can be inserted between the two plates (1), and the manufacturing method further comprises the step h: inserting the first after the step a and before the step b
  • the ribs require that the fiber texture of the outermost sheet of the first rib is perpendicular to the sheet (1).
  • the first reinforcing rib may comprise a plurality of thin plates, and the thickness of the reinforcing ribs may be realized by increasing or decreasing the number of layers of the thin plates as needed. Referring to Figure 18, it can be seen that there is a presence of a first stiffener at the junction of the ends of the two transverse bearing bodies.
  • the manufacturing method further includes the step i: adding the second reinforcing rib after the step c and before the step d, the second reinforcing rib may comprise a plurality of thin plates, the reinforcing ribs thereof
  • the thickness can be achieved by increasing or decreasing the number of layers of the sheet as needed. Referring to Figure 19, it can be seen that there is a second rib at the junction of the transverse bearing body and the cable-stayed structure.
  • the manufacturing method further includes the step j: adding the third reinforcing rib after the step f and before the step g, which is formed on the surface of the board (6) (
  • the plane in which the cable-stayed structure is located is in a certain direction, which can be grooved at different surface positions (6) along the length direction or the width direction of the core, the depth of the groove being just less than or equal to the plate (4)
  • the thickness is filled in the groove by the corresponding slats, thereby forming a plurality of third reinforcing ribs, as shown in FIG. 20, which is a side view of the top view of the plate (6) and the direction D of FIG.
  • FIG. 20 shows the slats which are grooved at different positions on the surface of the diagonally-drawn structure of the plate (6) and filled in the grooves to constitute a third reinforcing rib.
  • the side view in Fig. 20 shows that the depth of the groove is equal to the thickness of the plate (4).
  • a whole piece of the first reinforcing rib is inserted between the ends of the two lateral bearing bodies, and the specific manufacturing method is as follows:
  • Step a1) a plurality of slats of the same length and thickness are coded into a rectangular plate according to the direction of the fiber texture, and the length of the long side of the rectangle is equal to the length of the first rib, so that the first rib is ensured to be a piece along the length direction. Uninterrupted ribs, such as a length of 2.4m. Then, a plurality of slats having the same length and thickness are parallel to each other in accordance with the fiber texture, and are horizontally oriented to form a positive direction flat plate (1).
  • Step b1) The plurality of plates (1) are stacked in the fiber texture direction of the rectangular plate in the direction of the fiber texture from the two sides of the rectangular plate and are laid flat on both sides of the rectangular plate and bonded.
  • Step c1 Opening a plurality of grooves parallel to the direction of the fiber texture in the fiber texture direction on both sides of the bonded plate to form a double transverse bearing body having the entire first reinforcing rib.
  • each slat and each plate in the above manufacturing method are selected according to the size and application of the core, and the dimensions of each slat and each plate are not limited to the technical solution of the present invention.

Abstract

一种人造结构板的板芯，包括多组芯条单元，芯条单元沿板芯长度方向具有多层结构，每组芯条单元沿板芯长度方向均至少包括沿板芯长度方向延伸的双横向承压体和相对于所述双横向承压体倾斜设置的斜拉结构，每组芯条单元沿板芯长度方向依次包括双横向承压体、斜拉结构、斜拉结构并将双横向承压体、斜拉结构、斜拉结构叠压粘合组成，芯条单元沿板芯长度方向重复叠芯条单元组成板芯。人造板板芯可以有效提高人造板的强度、提升人造板的承载能力，并降低胶粘剂的使用量，绿色环保。一种板芯的制造方法，该方法可用机械化作业，工艺简单，生产效率高。

Description

一种人造结构板的板芯及其制造方法 技术领域
本发明涉及人造板材的制造领域，特别涉及一种人造结构板的板芯及其板芯的加工方法。
背景技术
由于木材资源紧缺、实木价格昂贵，人造板应运而生，作为家具、木质门、地板及建筑装饰装修等的板材材料被广泛使用。目前，普遍应用的人造板多为刨花板、纤维板、胶合板及集成材等，上述人造板是以刨花、纤维和单板等为基本单元，通过施加胶粘剂经高温、高压压制而成，成品板密度高，生产成本低，但也存在不少缺陷：产品重量大，搬运不方便；成品板结构强度较低；抗静曲变形能力较差；胶粘剂用量多，导致产品甲醛含量较高，不符合环保的生产要求。
鉴于此，如何提高人造板的强度、增强人造板的承载能力，并有效降低木材资源的消耗是本领域技术人员亟待解决的技术问题。中国专利CN103659998A公开了一种板材，其由多个板材单元粘连而成，每个所述的板材单元由一块方形木板构成，在所述方形木板的一侧面或两个相对侧面上均匀间隔设置多个割槽，且割槽的两端延伸到相邻侧面上。其板材的形成仅由在方形木块的侧面进行割槽以此延伸成板坯，这种结构比较单一，当受较为复杂的外力作用时，由于没有其它结构与割槽结构进行匹配，使得其受力无法达到均衡，导致板坯的强度较低，容易损坏。
中国专利CN202021653U公开了一项名称为栅格空芯人造板的技术，该技术解决了现有人造板密度高和板材内应力大的问题，但还存在原材料范围窄，结构强度不高等问题。中国专利CN104070567B公开了一种结构板及其板芯、板芯的加工方法，具体公开了一种承载能大、结构刚度高的结构板板芯和加工方法，但该加工方法不便于机械化作业，费工费力，生产效率低。
人造板阻燃问题是我国乃至全世界共同关注并迫切需要解决的难题，目前国内制造阻燃人造板主要有两种技术路线：一是采用阻燃剂处理人造板，二是采用人造板与无机板复合的方法，但后者已不属于传统意义上的人造板产品领 域。中国专利CN202021651U公开了一种多功能阻燃人造板，其技术方案是在木质中心层的上、下表面涂覆上、下阻燃层，并在上、下阻燃层上覆盖面板，虽然解决了人造板的阻燃问题，但仍存在人造板结构强度低的问题。
发明内容
基于现有技术中存在的缺陷，本发明要解决的技术问题在于提供一种结构强度高、加工方法方便、生产效率高的人造板板芯，还可以应用于阻燃板领域。
本发明提供了一种人造结构板的板芯，其特征在于，所述板芯包括多组芯条单元，所述芯条单元沿板芯长度方向具有多层结构，每组芯条单元沿板芯长度方向均至少包括沿板芯长度方向延伸的双横向承压体和相对于所述双横向承压体倾斜设置的斜拉结构，每组芯条单元沿板芯长度方向依次包括双横向承压体、斜拉结构、斜拉结构并将双横向承压体、斜拉结构、斜拉结构叠压粘合组成；
所述双横向承压体由两个横向承压体尾端粘合组成；
所述芯条单元沿板芯长度方向重复叠芯条单元组成板芯。
优选地，所述横向承压体包括多个沿板芯长度方向延伸的平行且间隔设置的板条，所述斜拉结构包括多个相对于所述横向承压体倾斜且间隔设置的板条，所述芯条单元中相邻两层斜拉结构的对应位置的板条在多层结构叠压方向上的投影呈人字形或八字形或交叉形分布。
优选的，横向承压体的间隔设置板条之间的深度小于横向承压体的厚度；
优选的，斜拉结构的间隔设置板条之间的深度小于斜拉结构的厚度；
为了增加板芯的强度，向双横向承压体中的尾端通过插入的第一加强筋进行粘合；优选的，第一加强筋至少包含一层薄板或多层合板，可以根据板芯所需的宽度和强度去调整第一加强筋的层数。
优选的，由于第一加强筋至少包括一层薄板，当仅有一层薄板时，该层薄板的纤维纹理方向垂于与其粘结的横向承压体的纹理方向。当第一加强筋含有多层薄板时，要求第一加强筋的最外层薄板的纤维纹理方向垂于与其粘结的横向承压体的纤维纹理方向。当第一加强筋含有的多层薄板层数为奇数时，优选的，除了最外层薄板的纤维纹理方向垂于与其粘结的横向承压体的纤维纹理方向，还要求多层薄板之间的纤维纹理方向相互垂直。
为了增加板芯的强度，可以在斜拉结构的头端增加第二加强筋，使其与斜拉结构相粘合，所述第二加强筋至少包括至少一层薄板或多层合板。第二加强筋的作用一方面增强强度，另一方面，作为斜拉机构与双横向承压体的连接层，增加胶合面积，有利于粘合。
优选地，所述斜拉结构的板条倾斜方向与所述板芯板面呈45°角。
优选地，相邻所述斜拉结构沿多层结构叠压方向上的宽度相同，所述横向承压体沿多层结构叠压方向上的宽度相同。所述横向承压体的板条间距小于斜拉结构的板条间距。
优选地，所述斜拉结构的板条间距相等，所述横向承压体的板条间距相等。
优选地，在所述芯条单元中的横向承压体、第一加强筋、第二加强筋、第三加强筋、斜拉结构表面或/和间隔处喷涂或填充用于阻燃的防火材料。
为了增加板芯的强度，还可以在斜拉结构与斜拉结构上的任意位置将二者断开，在断开的位置处插入第三加强筋，第三加强筋的方向与板芯长度方向平行或者倾斜，当插入多个第三加强筋时，以第三加强筋为边，形成网格结构，整体提升板芯的强度。
优选地，所述板芯沿人造板长度或宽度方向还含有第四加强筋结构。
本发明还提供一种人造板板芯的制造方法，包括下述步骤：
步骤a：将多个长度和厚度相同的板条按纤维纹理相互平行、沿水平方向无缝隙地码放成正方形平板(1)；
步骤b：将两个相同的板(1)按相同的纤维纹理方向堆叠成正方形平板(2)；
当需要增强板坯强度时，可以在两快板(1)之间增加第一加强筋，其与板(1)连接时的纤维纹理方向与板(1)相互垂直；
步骤c：将平板(2)两面沿板条纤维纹理方向开出多个彼此平行且平行于纤维纹理方向的槽，形成板(3)；
步骤d：将多个长度和厚度相同的板条按纤维纹理相互平行、沿水平方向无缝隙地码放成正方形平板(1)，将两个相同的板(1)按相互垂直的的纤维纹理方向堆叠成正方形平板并在平板两面沿板条纤维纹理方向开出多个彼此平行且平行于纤维纹理方向的槽，形成板(4)，使板(4)的对角线长度小于或等于平板(1)、平板(2)和板(3)的边长；
步骤e：将板(4)沿一定角度45°对角线方向裁切形成2块三角形板(5)；
步骤f：将4块板(5)排列于板(3)上，使4块板(5)的斜边与板(3)的边重合，并与板(3)粘接，形成板(6)；
当需要增加板坯的强度，同时增加双横向承压体与斜拉结构的粘结面积时，可以板(3)与板(5)之间增加第二加强筋；
步骤g：将板(6)按一定的厚度裁切形成一组或多组芯条单元，将多组芯条单元重复叠压粘合形成人造结构板的板芯。
优选地，板(3)的边长是1.2m，板(4)的边长是0.85m。
优选地，板(3)上的开槽深度小于相应的板条厚度。
优选的，为了增强板芯的强度，还包括步骤h：在所述步骤a之后和步骤b之前插入第一加强筋，第一加强筋的最外层薄板的纤维纹理方向与板(1)垂直。
优选的，为了增强板芯的强度，包括步骤i：在所述步骤c之后和步骤d之前插入第二加强筋。
优选的，如需进一步增加板芯的强度，制造方法还包括步骤j：在所述步骤f之后和步骤g之前插入第三加强筋，其具体过程为在所述板(6)的表面沿着板芯的长度方向或者宽度方向在不同的表面位置对(6)进行开槽，其槽的深度小于等于板(4)的厚度，在槽中填充相应的板条，由此形成多个第三加强筋。
为了增加人造结构板的板芯的防火，可以在芯条单元中的横向承压体、斜拉结构表面或/和间隔处喷涂或填充用于阻燃的防火材料
本发明提供的人造板板芯及其制造方法的优点是：
(1)相对于现有技术采用竖向承压体的结构，本发明结构中无竖向承压体。人造板芯用于多种物体制作，此时，在连接处或者其它位置，需要通过紧固件，如螺栓、钉子、销子等进行紧固相应的零件，如门把手、承重件、挂钩等，由于木板的尺寸是根据现场情况裁切的，当紧固的位置正好是竖向承压的位置时，由于竖向承压体内部是多个空槽结构，紧固件插入竖向承压体时，其轴向与竖向承压体的接触面积很小，会导致紧固力较小，无法固定物体，严重时甚至损坏竖向承压体的结构。而采用双横向承压体可以避免该问题，本发明的板坯结构中存在双横向承压体和斜拉结构，无论紧固位置选择在板坯的何处，紧固件插入木板时，其轴向都能与横向承压体或者斜拉结构进行较好的接 触，增大紧固力，能够有较好紧固效果。
(2)由于本发明无竖向承压体，相对于现有技术，在进行工艺制造开槽时，无需将板坯旋转90度，参见步骤a至c，只需将两块板(1)相堆叠即可，无须旋转90°，可以直接在机械上进行流水线开槽处理。本发明省略了一道将板坯旋转90度的工序，一方面节省了人力成本，另一方面，极大的提高生产效率。
(3)由双横向承压体、斜拉结构、斜拉结构组成的板芯，其板芯结构刚度高，芯条单元内部具有良好的力学平衡，承载能力强，不易发生扭曲和变形。木材利用率高，同时胶粘剂使用量少，绿色环保；制备方法可用机械化作业，工艺简单，生产效率高。
(4)第一加强筋存在有利于提高板芯强度，降低板芯挠度，从而降低变形率。由于加强筋的木材纹理方向与横向承压体的纹理方向垂直，当受到较强的外压力作用时，横向承压体受压时会发生弯曲变形，但加强筋的纹理方向与外压力方向垂直，其不易发生弯曲变形，反而对横向承压体的弯曲变形起到支撑作用，增强了板芯的强度，降低了板芯受热、受潮的变形率。另一方面，由于板芯是由双横向承压体和两个斜拉结构重复组合而成，因此按照现有的工艺尺寸，较难做到一整块板，通常做门板的高度尺寸都大于2m，按照现有的工艺，双横向承压体与斜拉结构整版最长的尺寸仅能达到1.2m，如需要达到尺寸为2m，势必采用两块板进行拼接，这样会导致板芯纵向的抗压强度降低，当有第一加强筋的存在，能够采用一整条加强筋，如长度为2m，2.2m，2.4m等尺寸，增加板芯的纵向抗压强度。除此以外，第一加强筋的存在有利于增加板芯与面板的胶合面积，使其最终的板更牢固，不容易脱胶。因为，板芯并不是最终的成品，成品需要将上下两块面板与板芯粘结，当有第一加强筋的存在时，增加了胶合的面积，使其成品板粘结更加牢固，不容易脱胶。
(5)第二加强筋存在有利于提高板芯强度。另外第二加强筋的存在有利于增加板芯与面板的胶合面积，使其最终的板更牢固，不容易脱胶。因为，板芯并不是最终的成品，成品需要将上下两块面板与板芯粘结，当有第二加强筋的存在时，增加了胶合的面积，使其成品板粘结更加牢固，不容易脱胶。
(6)第三加强筋存在有利于提高板芯强度，当插入多个第三加强筋时，以第三加强筋为边，形成网格结构，使其沿板芯长度方向的承载力增加，进一 步增加板坯的抗弯、抗压强度，从而整体提升板芯的强度。
(7)由于板芯中具有涂火防火材料，再加上板芯的特殊结构，具有较好的阻燃效果。板芯还可以应用于人造板阻燃。
附图说明
以下附图仅对本发明做示意性说明和解释，并不限定本发明的范围；
图1是本发明实施例芯条单元的立体结构示意图和主视图，图1a为立体结构示意图，图1b为主视图；
图2是本发明实施例板芯结构中的横向承压体示意图，图2a为横向承压体的主视图，图2b为横向承压体沿方向A的投影视图；
图3是本发明实施例板芯结构中斜拉结构的示意图，图3a为斜拉结构(20)和斜拉结构(21)的主视图，图3b是斜拉结构(20)沿方向B的投影视图，图3c是斜拉结构(21)沿方向C的投影视图；
图4是本发明实施例中人造板芯的立体结构示意图，图4a为人造结构板芯的立体结构示意图，图4b为人造结构板芯的主视图；
图5是本发明实施例含有第一加强筋的结构示意图，图5a1为含有一层薄板的第一加强筋的立体结构示意图，5a2为第一加强筋的薄板与横向承压体的纤维纹理方向相互垂直；图5b1为含有二层薄板的第一加强筋的立体结构示意图，5b2为第一加强筋的薄板与横向承压体的纤维纹理方向相互垂直；图5b1为含有二层薄板的第一加强筋的立体结构示意图，5b2为第一加强筋的薄板与横向承压体的纤维纹理方向相互垂直；图5c1为含有五层薄板的第一加强筋的立体结构示意图，5c2为第一加强筋的薄板与横向承压体的纤维纹理方向相互垂直；
图6是本发明实施例含有第一加强筋的结构的主视图，图6a为含有一层薄板的第一加强筋的主视图，图6b为含有三层薄板的第一加强筋的主视图，图6c为含有五层薄板的第一加强筋的主视图；
图7是本发明实施例中含有第二加强筋的结构的示意图，图7a1为含有一层薄板的第二加强筋的立体结构示意图，7a2为含有一层薄板的第二加强筋的俯视图；图7b1为含有二层薄板的第二加强筋的立体结构示意图，7b2为含有二层薄板的第二加强筋的俯视图；图7c1为含有第二加强筋的斜拉结构(20) 与斜拉结构(21)的立体结构示意图，图7c2含有第二加强筋的斜拉结构(20)与斜拉结构(21)的立体结构主视图；
图8是本发明实施例含有第一加强筋和第二加强筋的芯条单元结构的主视图，图8a为含第一加强筋的主视图，图8a为含有第一加强筋和第二加强筋的主视图；
图9是本发明实施例含有第三加强筋的斜拉结构的主视图，图9a为含有第三加强筋的斜拉结构主视图，其加强筋方向与板芯方向平行；图9b为含有第三加强筋的斜拉结构主视图，其加强筋方向与板芯方向倾斜；
图10是本发明实施例中人造板芯的结构示意图，图中显示了人造结构板的板芯含有第多个第三加强筋并组成网格结构；
图11是本发明实施例相邻两层斜拉结构对应位置的板条结构示意图，图11a为人字形，图11b为交叉形，图11c为八字形；
图12是本发明板芯制造方法实施例中板(1)的结构示意图，图12a是板面俯视结构示意图；图12b是图12a中D向的侧视结构示意图；
图13是本发明板芯制造方法实施例中板(2)的结构示意图；图13a是板面俯视结构示意图；图13b是图12中D向的结构示意图；
图14a是本发明板芯制造方法实施例中板(3)的结构示意图，其中a-1是俯视图，a-2是侧视图；
图14b是本发明板芯制造方法实施例中板(4)的结构示意图，其中b-1是俯视图，b-2是侧视图；
图15a、b是本发明板芯制造方法实施例中板(4)的裁切方向和图15c、d是板(5)的结构示意图；
图16a-d是本发明板芯制造方法实施例中板(6)的结构示意图,其中a-1俯视图，a-2是侧视图；
图17是本发明板芯制造方法实施例中芯条单元组成的板芯结构示意图。
图18是本发明板芯制造方法实施例中板(3)的含有第一加强筋的示意图，其中18a是俯视图，18b是侧视图。
图19是本发明板芯制造方法实施例中板(6)的含有第二加强筋的示意图，其中19a是俯视图，19b是侧视图。
图20是本发明板芯制造方法实施例中板(6)的含有第三加强筋的示意图， 其中20a是俯视图，20b是侧视图。
图中标号：10：横向承压体，11：横向承压体，12:双横向承压体，20：斜拉结构，21：斜拉结构，22：双斜拉结构。
L1：横向承压体的厚度，L2:横向承压体开槽后槽的深度；L3：斜拉结构的厚度，L4:斜拉结构开槽后槽的深度。200：芯条单元；
30：薄板，31：薄板，32:薄板，33：薄板，34：薄板，35:薄板
40:薄板，41：薄板，42:薄板；
51：与板芯方向平行的第三加强筋，52：与板芯方向倾斜的第三加强筋；
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图说明本发明的具体实施方式，在各图中相同的标号表示相同的部分。为使图面简洁，各图中的只示意性地表示出了与本发明相关部分，而并不代表其作为产品的实际结构。另外，以使图面简洁便于理解，在有些图中具有相同结构或功能的部件，仅示意性地绘示了其中的一个，或仅标出了其中的一个。
在本文中，“示意性”表示“充当实例、例子或说明”，不应将在本文中被描述为“示意性”的任何图示、实施方式解释为一种更优选的或更具优点的技术方案。
实施例1：
具体地，本发明提供的人造板板芯包括多组芯条单元。图1a和图1b是本发明芯条单元的结构示意图，分别为人造结构板芯的立体结构示意图和主视图，芯条单元沿板芯长度方向具有多层结构，每组芯条单元沿板芯长度方向均包括沿板芯长度方向延伸的横向承压体(10)、横向承压体(11)、相对于横向承压体倾斜设置的斜拉结构(20)、(斜拉结构(21)。
参见图2a为横向承压体的主视图和图2b为横向承压体沿方向A的投影视图，其中横向承压体包括多个沿板芯长度方向延伸的平行且间隔设置的板条，即对横向承压体进行开槽，板条的间隔深度(即槽深度)L2小于横向承压体的厚度L1(图2a)，横向承压体的纤维纹理方向与开槽的方向平行(图2b)。在此对横向承压体进行定义，将开槽的一侧定义为头端，未开槽的一侧定义为 尾端，如图2a所示。参见图1b，双横向承压体(12)由横向承压体(10)和横向承压体(11)的尾端相叠压并胶合组成。
参见图3a为斜拉结构的主视图、图3b为斜拉结构沿方向B的投影、图3c为斜拉结构沿方向C的投影，其中斜拉结构包括多个沿板芯长度方向延伸的平行且间隔设置的板条，即对斜拉结构进行开槽，板条间隔深度L3小于斜拉结构的厚度L4。斜拉结构的纤维纹理方向与开槽的方向平行。在此对斜拉结构进行定义，将开槽的一侧定义为头端，未开槽的一侧定义为尾端。斜拉结构相对于横向承压体倾斜设置，斜拉结构包括多个相对于横向承压体倾斜且间隔设置的板条，参见图3b和图3c，分别为沿方向B和方向C对应的投影示意图，从图中可以看出，两个斜拉结构板开槽方向相对于横向承压体的开槽方向倾斜。
每组芯条单元沿板芯长度方向依次由横向承压体(10)、横向承压体(11)、斜拉结构(20)、斜拉结构(21)叠压粘合组成，共具有四层结构，其中，横向承压体(10)和横向承压体(11)的尾端相叠压并与斜拉结构(20)的头端相叠压，斜拉结构(20)的尾端与斜拉结构(21)的尾端进行叠压，由此组成芯条单元(200)。参见图4。芯条单元沿板芯长度方向重复叠压粘合组成人造结构板的板芯，如图4所示，图4表示了由3个芯条单元(200)组成的人造结构板的板芯，图4a人造结构板芯的立体结构示意图，图4b为人造板芯的立体结构主视图。图4中板芯由三组芯条单元组成，按下一组芯条单元的横向承压体粘接上一组芯条单元的斜拉结构的顺序依次叠压粘合。在具体实施例中，板芯中芯条单元的数目根据人造板的长度或宽度需要进行设置，板芯中芯条单元的重复方式根据板材具体应用情况而定，本实施例仅是一个举例说明。
实施例2：
具体地，横向承压体(10)的尾端与横向承压体(11)的尾端相连接组成双横向承压体，为了增加强度，可以在横向承压(10)的尾端和横向承压体(11)的尾端插入第一加强筋，第一加强筋至少包括一层薄板。其薄板的层数和厚度可以根据需要增加或者减少。如具体可以为一层薄板至N层薄板(N为大于1的整数)。参见图5a1、图5a2，图5b1、图5b2、图5c1和图5c2。图5a1为含有的加强筋为一层薄板(30)，在横向承压体(10)的尾端与横向承压体(11)的尾端之间插入一层薄板(30)，其中要求薄板(30)的纤维纹理方向与与横 向承压体(10)和(11)尾端面的纤维纹理方向垂直，参见图5a2，从图中5a2中可以看出，薄板(30)与横向承压体(10)和(11)尾端面的纤维纹理方向垂直。图5b1为含有的加强筋为二层薄板，在横向承压体(10)的尾端与横向承压体(11)的尾端之间插入两层薄板(30)和(31)，其中要求薄板(30)和(31)的纤维纹理方向与与横向承压体(10)和(11)尾端面的纤维纹理方向垂直，参见图5b2，从图中5b2中可以看出，薄板(30)和(31)与横向承压体(10)和(11)尾端面的纤维纹理方向垂直。图5c1为含有的加强筋为五层薄板，在横向承压体(10)的尾端与横向承压体(11)的尾端之间插入五层薄板(30)、(32)、(33)、(34)、(35)，其中要求薄板(30)和(35)的纤维纹理方向与与横向承压体(10)和(11)尾端面的纤维纹理方向垂直，参见图5c2，从图中5c2中可以看出，薄板(30)和(35)与横向承压体(10)和(11)尾端面的纤维纹理方向垂直。五层薄板(30)、(32)、(33)、(34)、(35)的纤维方向相互垂直。
每组芯条单元沿板芯长度方向依次由横向承压体(10)、第一加强筋、横向承压体(11)、斜拉结构(20)、斜拉结构(21)叠压粘合组成。参见图6，图6a为含有一层薄板的第一加强筋的双横向承压体的主视图，图6b为含有三层薄板的第一加强筋的双横向承压体的主视图，图6c为含有五层薄板的第一加强筋的双横向承压体的主视图。
需要说明的是，本发明所有实施例中的第一加强筋与横向承压体的尾端相叠压的薄板的纤维纹理方向要求与横向承压体的纤维纹理方向垂直，其不与横向承压体尾端面直接相叠压的薄板其纤维纹理方向可以视具体情况而定。如当第一加强筋的层数为奇数层时，相接触的薄板的纤维纹理方向与横向承压体相互垂直。
实施例3：
具体地，双横向承压体与斜拉结构连接处插入第二加强筋，其作为双横向承压体与斜拉结构的连接层。第二加强筋至少包含一层薄板，具体的层数和薄板的厚度可以根据实际情况任意增减，参见图7。图7a1和图7a2分别为含有一层薄板的第二加强筋的立体结构示意图和主视图，薄板(40)与斜拉结构(20)的头端相叠加。图7a1和图7a2分别为含有一层薄板的第二加强筋的立体结构 示意图和主视图，薄板(40)与斜拉结构(20)的头端相叠加。图7b1和图7b2分别为含有二层薄板的第二加强筋的立体结构示意图和主视图，第二层薄板(41)与第一层薄板(40)相叠加后，第一层薄板(40)与斜拉结构(20)的头端相叠加。图7c1和图7c2分别含有单层薄板的第二加强筋的斜拉结构的立体结构图和主视图。图中斜拉结构(20)与斜拉结构(21)的头端分别粘结了含有一层薄板(41)的第二加强筋。
每组芯条单元沿板芯长度方向依次由横向承压体(10)、第一加强筋、横向承压体(11)、第二加强筋、斜拉结构(20)、斜拉结构(21)、第二加强筋叠压粘合组成。图8为含有第一加强筋和第二加强筋的板芯结构主视图。其中，图8a含有一层薄板的第一加强筋和含有一层薄板的第二加强筋的人造结构板芯的主视图。图8b含有三层薄板的第一加强筋和含有一层薄板的第二加强筋的人造结构板芯的主视图。
实施例4：
具体地，斜拉结构(20)与斜拉结构(21)相叠加时，为了增加沿板芯沿长度方向的强度，在斜拉结构(20)与斜拉结构(21)的任意位置进行整体断开并形成沟槽后填入第三加强筋，参见图9，加强筋的方向与板芯长度方向平行或者倾斜,图9a中显示了第三加强筋的方向与板芯长度平行,将两个斜拉结构中多处位置整体断开后形成沟槽，进行断开后的沟槽位置填充第三加强筋(51)，第三加强筋为板条。图9b显示了第三加强筋的方向与板芯长度方向倾斜，斜拉结构槽的方向此时与板芯长度方向倾斜。
参见图10，每组芯条单元沿板芯长度方向依次由横向承压体(10)、横向承压体(11)、斜拉结构(20)、斜拉结构(21)叠压粘合组成，而且斜拉结构(20)和斜拉结构(21)布置有多条第三加强筋(51)，由此组成芯条单元(200)，参见图10，板芯包括三组芯条单元，从图10中可以看出，在斜拉结构上布置的多组第三加强筋组成多个网格，参见图10中虚框部分，这些第三加强筋构成了网格结构，一方面，当板芯受外力作用时，能够起到作用力的分散，使其作用力迅速达到平衡。另一方面，多个第三加强筋之间的存在，使其形成相互支撑的结构，进一步增加板芯横向的强度，进一步降低板芯的变形率。
需要说明的是，本发明所有实施例中横向承压体和斜拉结构的形状和组成并不局限于本方案中的板条，还可以是其他非板条的结构，如板块，板片、整体板等，只需结构组成能够符合横向承压体沿板芯长度方向延伸、斜拉结构相对于所述横向承压体倾斜设置的要求均可。
在本发明的具体实施例中，板芯中芯条单元的数目根据人造板的长度或宽度需要进行设置，板芯中芯条单元的重复方式根据板材具体应用情况而定，本实施例仅是一个举例说明。
需要说明的是，上述“板芯长度方向”在具体的实施例中也可以为板芯宽度方向，应当理解的是，本发明中横向承压体、斜拉结构组成芯条单元的叠压方向与芯条单元叠压成板芯的方向相同。
本发明芯条单元中双横向承压体起到框架的作用，能够承受人造板受到的拉力和压力，斜拉结构和框架结构共同作用，可以有效分解人造板受到的外力。
在具体实施例中，芯条单元中横向承压体板条的间距根据加工工艺和板材实际应用场合进行调整，相邻板条间的间距可以相等，也可以不相等。优选地，横向承压体的板条间距都相等。
在具体实施例中，芯条单元中斜拉结构的板条间距可以根据加工工艺和板材实际应用场合进行调整，同一层斜拉结构中的板条可以相互平行，相邻板条间的间距可以相等，也可以不相等；同一层斜拉结构中的板条相对于板芯板面的倾斜方向和角度可以相同，也可以不相同。优选地，同一层斜拉结构中的板条相对于板芯板面的倾斜角度相同，优选45°。优选地，横向承压体的板条间距小于斜拉结构中的板条间距，这样有利于增大粘接面积，提高板芯的稳定性。
无论同一层斜拉结构中的板条倾斜方向相同还是相反，只要斜拉结构的板条相对于横向承压体的板条倾斜且间隔设置，就都在本发明申请的保护范围之内。
进一步地，为了达到更好的受力效果，在具体实施例中，芯条单元中横向承压体和斜拉结构沿叠压方向上的宽度相同。优选地，横向承压体、斜拉结构沿叠压方向上的宽度都相等。
本发明每组芯条单元都包括两个相邻的斜拉结构。在具体实施例中，由于斜拉结构中的板条间距及倾斜方向、倾斜角度的不同，相邻两层斜拉结构中的对应位置的板条在叠压方向上的投影可以呈人字形或八字形或交叉形分布，如 图11所示。图11是相邻两层斜拉结构的板条沿叠压方向投影上的结构示意图，图11a为人字形，图11b为交叉分布形，图11c为八字形。
需要说明的是，板芯中每组芯条单元中相邻两层斜拉结构的板条倾斜方向和分布方式无需一致。
在具体实施例中，可以在本发明芯条单元的横向承压体、第一加强筋、第二加强筋、第三加强筋、斜拉结构的表面或/和间隔处喷涂或填充防火阻燃材料。
本发明还提供了一种人造板板芯的制造方法，该板芯包括多组芯条单元，所述芯条单元沿板芯长度方向具有多层结构，每组芯条单元沿板芯长度方向均包括沿板芯长度方向延伸的横向承压体和相对于所述横向承压体倾斜设置的斜拉结构，每组芯条单元沿板芯长度方向依次由横向承压体、横向承压体、斜拉结构、斜拉结构叠压粘合组成，芯条单元沿板芯长度方向重复叠压粘合组成板芯。具体步骤如下：
步骤a：将多个长度和厚度相同的板条按纤维纹理相互平行、沿水平方向无缝隙地码放成正方形平板(1)：
图12是板(1)的板面俯视结构示意图和图中D向的侧视结构示意图，需要说明的是，具体实施例中对各个板条的宽度没有要求，优选地各板条宽度相同。板条的长度和厚度根据原材料情况和板材适用场合进行选取。各个板条紧密无缝隙地码放，如图12所示。
步骤b：将两个相同的板(1)按相同的纤维纹理方向堆叠成正方形平板(2)：
图13是板(2)的板面俯视结构示意图和图12中D向的结构示意图，将多个长度和厚度相同的板条无缝隙地水平排列于板(1)上，具体实施例中对各个板条的宽度没有要求，优选地各板条宽度相同。板条的长度和厚度根据原材料情况和板材适用场合进行选取。需要说明的是，为节省木料，各板条长度优选与板(1)中的板条长度相同，而厚度和宽度与板(1)中的板条可以相同，也可以不相同。各板条排列码放完成后与平板(1)进行粘接，形成板(2)。
步骤c：将正方形平板(2)两面沿板条纤维纹理方向开出多个彼此平行且平行于纤维纹理方向的槽，形成板(3)：
图14a是板(3)的板面俯视结构示意图和图12中D向的结构示意图，板(3)是在板(2)的两面顺纤维纹理方向开槽所形成的，其中开槽的方向平行 于纤维纹理方向，开槽的深度和宽度及开槽数量根据板芯应用的场合和强度需要而定，优选地，板(3)上的开槽深度小于等于相应的板条厚度，如图14a所示。
步骤d：将多个长度和厚度相同的板条按纤维纹理相互平行、沿水平方向无缝隙地码放成正方形平板(1)，将两个相同的板(1)按相互垂直的纤维纹理方向堆叠成正方形平板并在平板两面沿板条纤维纹理方向开出多个彼此平行且平行于纤维纹理方向的槽，形成板(4)，使板(4)的对角线长度小于或等于平板(1)、平板(2)和板(3)的边长；
板(4)的结构示意图为图14b，需要说明的是，板(4)中的开槽宽度、深度和数目可以与板(3)相同，也不可以与板(3)完全不同，只要板(4)的对角线长度小于或等于板(3)即可，板(4)和板(3)的制造方法相同，优选的板(4)上的开槽深度小于等于相应的板条厚度。
步骤e：将板(4)沿45°对角线方向裁切形成2块三角形板(5)：
图15(a)和(b)是板(4)裁切方向示意图，对于同一块板(4)沿45°对角线方向裁切有两种方式，形成的板(5)也有两种结构形式，如图15(c)和(d)所示。需要说明的，两种裁切方向都适用于本发明的板芯制造方法，都在本发明申请的保护范围之内。
步骤f：将4块板(5)排列于板(3)上，使4块板(5)的斜边与板(3)的边重合，并与板(3)粘接，形成板(6)，即此时板(6)形成芯条单元；
图16是板(6)的结构示意图，由于板(4)裁切方式不同可以形成两种结构的板(5)，所以板(6)的结构根据裁切和选取板(5)的不同会出现四种变体。其中，若采用两块板(4)按同种裁切方向形成的四块板(5)，则形成的板(6)结构示意如图16(a)和16(b)；若采用两块板(4)按两种裁切方向形成的板(5)各两块，则形成的板(6)结构示意如图16(c)和图16(d)所示。需要说明的是，如板(5)的斜边即板(4)的对角线长度小于板(3)的边长，则排列时将板(5)的斜边与板(3)的边重合，此时板中央有可能会出现空缺，但并不影响本发明板芯的制造。
步骤g：将多组板(6)按一定顺序叠压粘合形成人造结构板的板芯，参见图17：
需要说明的是，图16所示的板(6)仅包括一组四层结构即一组芯条单元， 而在实际应用中可根据板芯长度和宽度需要组合多块板(6)以形成具有多组芯条单元的板(7)，参见图17，然后沿着板芯宽厚的方向根据需求按照一定厚度裁切成人造结构板芯。
将按上述步骤制备的芯条单元沿板芯长度或宽度方向重复叠压粘合，即可制成具有一定长度和宽度的的人造板板芯。
需要说明的是，本发明制造工艺中所用的方位词是参考图17所示，其中方位词“上”和“下”指的是以图17为基准，上、下方向即垂直于板面的方向，应当理解，这些方位词的出现是以说明书附图为基准而设立的，他们的出现并不应当影响本发明的保护范围。
在具体实施例中，板(3)的边长是1.2m，板(4)的边长是0.85m。
在具体实施例中，如需增加板芯的强度，可以在两块板(1)之间插入第一加强筋，制造方法还包括步骤h：即在在步骤a之后和步骤b之前插入第一加强筋，要求第一加强筋的最外层薄板的纤维纹理方向与板(1)垂直。其中，第一加强筋可以包括多层薄板，其加强筋的厚度可以根据需要增加或者减少薄板的层数来实现。参见图18，从图中可以看出在两个横向承压体的尾端连接处有第一加强筋的存在。
在具体实施例中，如需进一步增加板芯的强度，制造方法还包括步骤i：即在步骤c之后和步骤d之前增加第二加强筋，第二加强筋可以包括多层薄板，其加强筋的厚度可以根据需要增加或者减少薄板的层数来实现。参见图19，从图中可以看出在横向承压体与斜拉结构的连接处有第二加强筋的存在。
在具体实施例中，如需进一步增加板芯的强度，制造方法还包括步骤j：即在在步骤f之后和步骤g之前增加第三加强筋，其制作方法为在板(6)的表面(斜拉结构所处于的平面)按照一定方向，其即可以沿着板芯的长度方向或者宽度方向在不同的表面位置对(6)进行开槽，其槽的深度刚好小于或等于板(4)的厚度，在槽中填充相应的板条，由此形成多个第三加强筋，如图20所示，图20为板(6)的俯视图和图12的方向D的侧视结构示意图。图20中的俯视图显示了在板(6)的斜拉结构的表面沿着上方的不同位置进行了开槽，并在槽中填入的板条，构成第三加强筋。图20中的侧视图显示了其槽的深度等于板(4)的厚度。
在具体实施例中，为了增加板芯的强度，需要在两个横向承压体的尾端中 间插入一整块第一加强筋，其具体的制作方法为：
步骤a1)，将多个长度和厚度相同的板条按照纤维纹理的方向码成长方形板，长方形的长边的长度等于第一加强筋的长度，这样能够保证第一加强筋沿长度方向是一块不间断的加强筋，如长度为2.4m长。然后，将多个长度和厚度相同的板条按照纤维纹理相互平行、沿水平方向码放成正方向平板(1)。
步骤b1)将多块板(1)按照纤维纹理方向垂于长方形板的纤维纹理方向分别从长方形板的两侧面进行码放并直至平铺于长方形板的两个侧面并进行粘结。
步骤c1：将粘结后的板两面沿纤维纹理方向开出多个彼此平行且平行于纤维纹理方向的槽，形成具有整条第一加强筋的双横向承压体。
需要说明的是，以上制造方法中各板条及各板的长宽厚根据板芯的尺寸和应用场合进行选取，各板条及各板的尺寸并不对本发明的技术方案构成限定。
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明，而并非用以限制本发明的保护范围，凡未脱离本发明技艺精神所作的等效实施方案或变更，如特征的组合、分割或重复，均应包含在本发明的保护范围之内。

Claims (17)

  1. 一种人造结构板的板芯，其特征在于，所述板芯包括多组芯条单元，所述芯条单元沿板芯长度方向具有多层结构，每组芯条单元沿板芯长度方向均至少包括沿板芯长度方向延伸的双横向承压体和相对于所述双横向承压体倾斜设置的斜拉结构，每组芯条单元沿板芯长度方向依次包括双横向承压体、斜拉结构、斜拉结构并将双横向承压体、斜拉结构、斜拉结构叠压粘合组成；
    所述双横向承压体由两个横向承压体尾端粘合组成；
    所述芯条单元沿板芯长度方向重复叠芯条单元组成板芯。
  2. 根据权利要求1所述人造结构板的板芯，其特征在于，所述双横向承压体中的尾端通过加插入的第一加强筋进行粘合，所述第一加强筋至少包含一层薄板。
  3. 根据权利要求2所述人造结构板的板芯，其特征在于，所述第一加强筋的最外层薄板的纤维纹理方向垂于与其粘结的横向承压体的纤维纹理方向。
  4. 根据权利要求2所述人造结构板的板芯，其特征在于，当第一加强筋含有的多层薄板层数为奇数时，所述多层薄板之间的纤维纹理方向相互垂直。
  5. 根据权利要求1所述人造板结构板的板芯，其特征在于，所述斜拉结构与双横向承压体通过插入第二加强筋进行粘合，所述第二加强筋包含至少一层薄板。
  6. 根据权利要求1所述人造板结构板的板芯，其特征在于，通过在相邻斜拉结构上的任意位置将二者进行开槽处理后形成槽，在所述的槽内插入第三加强筋，第三加强筋的方向与板芯长度方向平行或者倾斜。
  7. 根据权利要求1所述人造结构板的板芯，其特征在于，所述横向承压体包括多个沿板芯长度方向延伸的平行且间隔设置的板条，所述斜拉结构包括多个相对于所述横向承压体倾斜且间隔设置的板条，所述芯条单元中相邻两层斜拉结构的对应位置的板条在多层结构叠压方向上的投影呈人字形或八字形或交叉形分布。
  8. 根据权利要求7所述人造结构板的板芯，其特征在于，所述横向承压体的间隔设置板条之间的深度小于横向承压体的厚度，所述斜拉结构的间隔设置板条之间的深度小于斜拉结构的厚度。
  9. 根据权利要求7所述人造结构板的板芯，其特征在于，所述斜拉结构的板条倾斜方向与所述板芯板面呈45°角。
  10. 根据权利要求7所述人造结构板的板芯，其特征在于，相邻所述斜拉结构沿多层结构叠压方向上的宽度相同。
  11. 根据权利要求7所述人造结构板的板芯，其特征在于，所述斜拉结构的板条间距相等，所述横向承压体板条间距相等；所述横向承压体的板条间距小于斜拉结构的板条间距。
  12. 根据权利要求1至11中任一项所述的人造结构板的板芯，其特征在于，在所述芯条单元中的横向承压体、第一加强筋、第二加强筋、第三加强筋、斜拉结构表面或/和间隔处喷涂或填充用于阻燃的防火材料。
  13. 一种人造结构板的板芯的制造方法，其特征在于，包括下述步骤：
    步骤a：将多个长度和厚度相同的板条按纤维纹理相互平行、沿水平方向无缝隙地码放成正方形平板(1)；
    步骤b：将两个相同的板(1)按相同的纤维纹理方向堆叠成正方形平板(2)；
    步骤c：将正方形平板(2)两面沿板条纤维纹理方向开出多个彼此平行且平行于纤维纹理方向的槽，形成板(3)；
    步骤d：将多个长度和厚度相同的板条按纤维纹理相互平行、沿水平方向无缝隙地码放成正方形平板(1)，将两个相同的板(1)按相互垂直的纤维纹理方向堆叠成正方形平板并在平板两面沿板条纤维纹理方向开出多个彼此平行且平行于纤维纹理方向的槽，形成板(4)，使板(4)的对角线长度小于或等于平板(1)、平板(2)和板(3)的边长；
    步骤e：将板(4)沿一定角度45°对角线方向裁切形成2块三角形板(5)；
    步骤f：将4块板(5)排列于板(3)上，使4块板(5)的斜边与板(3)的边重合，并与板(3)粘接，形成板(6)；
    步骤g：将板(6)按一定的厚度裁切形成一组或多组芯条单元，将多组芯条单元重复叠压粘合形成人造结构板的板芯。
  14. 根据权利要求13所述的人造结构板的板芯的制造方法，其特征在于，还包括步骤h：在所述步骤a之后和步骤b之前插入第一加强筋，第一加强筋的最外层薄板的纤维纹理方向与板(1)垂直。
  15. 根据权利要求13所述的人造结构板的板芯的制造方法，其特征在于， 包括步骤i：在所述步骤c之后和步骤d之前插入第二加强筋。
  16. 根据权利要求13所述的人造结构板的板芯的制造方法，其特征在于，制造方法还包括步骤j：在所述步骤f之后和步骤g之前插入第三加强筋，其具体过程为在所述板(6)的表面沿着板芯的长度方向或者宽度方向在不同的表面位置对(6)进行开槽，其槽的深度小于等于板(4)的厚度，在槽中填充相应的板条，由此形成多个第三加强筋。
  17. 根据权利要求13所述人造结构板的板芯的制造方法，其特征在于，板(3)的边长是1.2m，板(4)的边长是0.85m。
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