CN111300928B - Composite board with adjustable concave-convex and bending surface - Google Patents

Composite board with adjustable concave-convex and bending surface Download PDF

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Publication number
CN111300928B
CN111300928B CN202010250594.7A CN202010250594A CN111300928B CN 111300928 B CN111300928 B CN 111300928B CN 202010250594 A CN202010250594 A CN 202010250594A CN 111300928 B CN111300928 B CN 111300928B
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board
core
grooves
convex
concave
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CN111300928A (en
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张家铭
张棋惠
许倍嘉
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Priority to CN202211570767.9A priority Critical patent/CN116409033A/en
Priority to CN202010250594.7A priority patent/CN111300928B/en
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    • 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
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • 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
    • 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
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • 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
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • 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
    • B32B3/06—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 for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • 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
    • B32B3/26—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/042—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
    • B32B2471/00—Floor coverings
    • 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
    • B32B2607/00—Walls, panels

Abstract

The invention relates to a composite board with adjustable concave-convex and bending of board surface, comprising: the surface of the core plate is provided with a plurality of grooves consistent with the wood fiber direction of the core plate, and the concave-convex state of the core plate is adjusted through the grooves; and the balance plate is attached to the surface of the core plate, which is provided with the groove. The purpose of arranging the grooves in the invention is to reasonably apply the internal bending stress of the wood board and the rotary-cut veneer, and the concave-convex state of the board surface and the control of the board surface bending direction are adjusted by utilizing the matching of the grooves, the wood board and the internal bending stress of the rotary-cut veneer. In addition, the composite board with the two-layer structure greatly reduces the using amount of glue, and reduces the negative effects brought by formaldehyde. The composite board with the two-layer structure reduces the number of glue layers, improves the production efficiency, reduces the processing and production process of finished products, reduces the cost of labor, time, materials and the like, can better conform to the requirements of the market on collocation of various scenes and cost reduction.

Description

Composite board with adjustable concave-convex and bending surface
Technical Field
The invention relates to a composite board capable of adjusting the concave-convex and bending of a board surface, in particular to a composite board which is provided with grooves on the upper surface of a core board, wherein the grooves are consistent with the wood fiber direction of the core board, so that the concave-convex and bending direction of the board surface can be adjusted to be controllable.
Background
The solid wood composite board is applied to the fields of indoor decoration and furniture for a long time, is particularly wide in the field of wood floors, and is widely selected by consumers based on the economical efficiency of material acquisition and use, the wood boards used in the current market are not only the traditional solid wood boards, but also the solid wood multilayer composite board is based on the characteristics of low cost, small deformation and the like, and the solid wood multilayer composite board is mainly structurally characterized in that a solid wood multilayer composite board substrate is formed by matching different thicknesses and numbers of spiral veneer veneers or solid wood veneers, and then a longitudinal panel made of high-grade wood is attached to the surface of the solid wood multilayer composite board substrate in a glue water cooling and hot pressing mode, so that the good visual effect of the solid wood substrate thickness and the high-grade solid wood board can be provided, the solid wood board made of the traditional high-grade solid wood is replaced, the solid wood board can be used as a material for manufacturing furniture or floors, has lower price and smoother and stable quality, and can enable consumers or downstream manufacturers to have better different choices.
The rotary-cut veneer and the solid veneer used in the solid wood multilayer composite board are divided according to material taking modes, the material taking modes of the solid veneer comprise chord cutting, radial cutting and carving cutting, the material taking mode of the rotary-cut veneer is produced by rotary-cut equipment, the yield of the rotary-cut mode is highest, and the cost is low.
Please refer to fig. 63, which is a schematic structural diagram of a solid wood three-layer composite floor board widely used in the market, wherein it can be clearly seen that the solid wood composite board 70 includes a surface layer 72, a bottom layer 74 and a plurality of sandwich boards 76, the sandwich boards 76 are solid wood slats, the plurality of sandwich boards 76 are cut and separated into small slats, and then spliced in series side by side with hemp ropes or paper ropes 71, and then clamped between the surface layer 72 and the bottom layer 74. The sandwich board 76 is obtained by subtracting the thickness of the face board and the bottom skin from the total thickness of the common solid wood three-layer composite finished floor in the market and matching with the matching thickness of the sandwich board 76, and then matching with glue for blank assembly and lamination. The processing and production method is generally to saw and divide a solid wood plate with a wider width and two sides subjected to thicknessing, thicknessing and sanding to a thickness of 20 to 35mm by a multi-blade saw at a distance of 10 to 20mm in width, so as to obtain a solid wood lath of the sandwich panel 76 with a width of 20 to 35mm and a thickness of 10 to 20mm, then saw and divide the solid wood lath on the surface of a longitudinal lath with a width of 20 to 35mm in a direction perpendicular to the fiber direction of the lath of the sandwich panel 76 at a depth of 2 to 3mm, wherein a saw path is a plurality of grooves with a width of 1.5mm, and a hemp rope or paper rope with a diameter of about 2mm is pressed and buckled in the grooves, so that the laths are connected into a long plate in a string rope mode, please refer to fig. 64. In addition, the irregular wood fiber growth direction of the wood sandwich board 76 strip and the uneven distribution of the hardness and density of the wood body, and the like, when the humidity in the atmosphere is greatly changed, the floor can expand due to moisture absorption, so that the assembled floor blocks can mutually push the joints of the floor and the floor to form the middle recess of the floor surface due to arching or drying shrinkage, and tile-shaped or warping phenomena can also occur on the surface of the floor, thereby affecting the functions of visual beauty, practicability and the like. Furthermore, gaps with different local sizes and intervals exist among the spliced battens formed by loosely splicing the strings of the small solid wood battens, and the surface layer 72 gland with the thickness of more than 3.0mm needs to be attached to the upper parts of the sandwich plates 76 by glue, so that the defects that when a thin panel layer is used in the splicing gaps of the battens of the sandwich plates 76, the formed sunken or visual strip gaps are reflected, the defects that the fault gaps of the tandem splicing of the battens of the sandwich plates 76 are not tight, the material density is not uniform and the like need to be covered by the attractive and expensive surface layer with larger thickness are overcome. Therefore, the manufacturing cost of the finished panel is also greatly increased.
Please refer to fig. 65, which is a schematic structural diagram of a composite board manufactured by rotary-cut multi-layer veneers in the prior art, wherein it can be clearly seen that the rotary-cut composite board 80 is made by overlapping and pressing a plurality of longitudinal rotary-skin veneers 82 and a plurality of transverse rotary-skin veneers 84 in a staggered manner, and a layer of higher-grade longitudinal panel can be attached to the surface of the rotary-cut composite board, so as to have a better visual effect of noble wood; the rotary-cut composite board 80 still depends on a large amount of labor in production, the quality of the rotary-cut composite board 80 is inevitably reduced in the market competitiveness under the condition that the labor cost is continuously increased, meanwhile, a large amount of glue is required in the production process, and formaldehyde contained in the glue has negative influence on the environment; furthermore, contact with chemically produced glues and inhalation into the respiratory tract over time also have negative effects on the health of the manufacturing personnel and consumers who use the products for a long period of time in the future.
Please refer to fig. 66, which is a composite board of solid wood or veneer floor with grooves according to the patent application No. 201210506350.6, the name of the invention is solid wood or veneer floor with grooves, the composite board 90 includes a solid wood or veneer floor 92 with longitudinal wood grains, a transverse veneer 94 attached to the attaching surface of the solid wood or veneer floor 92, a longitudinal panel 96 attached to the other side of the transverse veneer 94, and a longitudinal groove 921 and a transverse groove 922 disposed on the attaching surface of the solid wood or veneer floor 92. After the transverse and longitudinal grooves are arranged, the solid wood or veneer base plate becomes low in static bending strength and high in brittleness, and is easy to break when treaded under high gravity, so that the transverse veneer 94 and the longitudinal panel 96 are adhered to the base plate, and the integral structural strength of the composite plate is improved. However, in the three-layer composite board straight saw groove sawing structure, the grooves are arranged to mainly cut and cut off fibers inside the wood, and more grooves are needed to be adopted for sawing, cutting and cutting off, so that the obtained larger and more damaged wood internal stress and the obtained paved board surface become smooth and smooth.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a composite board with an adjustable concave-convex and bending board surface, and solves the problem that the existing composite board has the negative influence of formaldehyde due to the fact that a large number of structural layers use a large amount of glue.
The technical scheme for realizing the purpose is as follows:
the invention provides a matched composite board which is formed by regularly bending a board spirally cut from a solid wood or a rotary-cut veneer with different angles, depths and groove numbers by using saw grooves of the board and the rotary-cut veneer of a log, and the board has hidden cracks and internal stress, and the composite board with concave-convex surface and adjustable and controllable bending direction or flatness can be manufactured without using a concave-convex die for pressing, comprising:
the core board is characterized in that a plurality of grooves consistent with the wood fiber direction of the core board are formed in one surface of the core board, and the concave-convex and bending states of the core board are adjusted through the grooves; and
and the balance plate is attached to the surface of the core plate, which is provided with the groove.
The composite board is provided with the grooves on one surface of the core board, the directions of the grooves are consistent with the wood fiber directions of the core board, and the concave-convex and bending states of the core board are adjusted by the grooves. The grooves are arranged in the invention, so that the stress in the wood is reasonably applied, and the concave-convex and bending states of the board surface are adjusted by utilizing the matching of the grooves and the regular bending angle naturally formed by the stress in the wood, so that the board surface has the artificially required bending direction. The method is different from the existing solid wood or veneer with transverse and longitudinal grooves, and the transverse and longitudinal grooves in the prior art are used for destroying fibers in the wood, so that the internal stress of the wood is destroyed, and the surface of the veneer becomes soft and flat. The grooves in the invention have the function of adjusting the concave-convex state of the board surface, flexibly utilize the deformation rule of the wood, achieve the aim of controlling the leveling of the board and the bending direction of the composite board without using a bending die for processing, greatly reduce the investment cost of the die and obtain high-efficiency yield with low cost. The composite board has the required concave-convex state, the use requirement of the composite board can be met only by sticking a layer of balance board on the composite board, the balance board can also be used as a veneer, the composite board with a two-layer structure greatly reduces the glue consumption and the negative effect brought by formaldehyde. The composite board with the two-layer structure reduces the number of glue layers, improves the production efficiency, reduces the processing and production processes of finished products, reduces the cost of labor, time and glue, and can better conform to market demands.
The composite board with the adjustable concave-convex surface is further improved in that the included angle formed between the grooves and the surface of the core board is greater than or equal to 30 degrees and less than or equal to 150 degrees.
The composite board with the adjustable concave-convex surface is further improved in that the grooves are arranged in a splayed mode in pairs.
The composite board with the adjustable concave-convex surface is further improved in that the grooves are arranged in a mirror image mode by taking the middle of the core board as an axis.
The invention can adjust the concave-convex composite board of the face further improve in that, the said core plate is the rotary cut veneer; or the core board is a solid wood board.
The composite board with the adjustable concave-convex board surface is further improved in that the grooves are arranged in a depth from deep to shallow to deep.
The composite board with the adjustable concave-convex board surface is further improved in that the grooves are arranged in a mode that the depth is from shallow to deep to shallow.
The composite board with the adjustable concave-convex surface is further improved in that the grooves are arranged from sparse to dense to sparse.
The composite board with the adjustable concave-convex surface is further improved in that the grooves are arranged from dense to sparse to dense.
The composite board with the adjustable concave-convex surface is further improved in that the balance board is a rotary cut single board or a solid board, and the wood fiber direction of the balance board is perpendicular to that of the core board.
The composite board with the adjustable concave-convex board surface is further improved in that a groove is formed in the surface, attached to the core board, of the balance board.
The composite board with the adjustable concave-convex surface is further improved in that the balance board is made of a metal material, an inorganic non-metal material or a high polymer material.
The composite board with the adjustable concave-convex board surface is further improved in that the composite board further comprises a grid cloth matched with the size of the core board, and the grid cloth is attached to the opposite surface of the core board, which is attached with the balance board.
The composite board with the adjustable concave-convex board surface is further improved in that the composite board further comprises a grid cloth matched with the size of the core board, and the grid cloth is clamped between the core board and the balance board.
The composite board with the adjustable concave-convex board surface is further improved in that the composite board further comprises a connecting edge strip arranged on the end surface of the core board.
The composite board with the adjustable concave-convex board surface is further improved in that the connecting side strips on the end surface of the core board are made of wood, bamboo, wood plastic, high polymer materials or non-metal materials.
The invention also provides a composite board with adjustable concave-convex and bending of the board surface, which comprises:
the core board is characterized in that a plurality of grooves consistent with the wood fiber direction of the core board are formed in one surface of the core board, and the concave-convex state of the core board is adjusted through the grooves;
the balance plate is attached to the surface of the core plate, which is provided with the groove; and
the panel is attached to the opposite surface of the core plate, and the balance plate is attached to the opposite surface of the core plate.
The composite board with the adjustable concave-convex board surface is further improved in that the included angle formed between the grooves and the surface of the core board is greater than or equal to 30 degrees and less than or equal to 150 degrees.
The composite board with the adjustable concave-convex board surface is further improved in that the grooves are arranged in a splayed mode in pairs.
The composite board with the adjustable concave-convex surface is further improved in that the grooves are arranged in a mirror image mode by taking the middle of the core board as an axis.
The invention can adjust the concave-convex composite board of the face further improve in that, the said core plate is the rotary cut veneer; or the core board is a solid wood board.
The composite board with the adjustable concave-convex board surface is further improved in that the grooves are arranged in a depth from deep to shallow to deep.
The composite board with the adjustable concave-convex board surface is further improved in that the grooves are arranged in a mode that the depth is from shallow to deep to shallow.
The composite board with the adjustable concave-convex surface is further improved in that the grooves are arranged from sparse to dense to sparse.
The composite board with the adjustable concave-convex surface is further improved in that the grooves are arranged from dense to sparse to dense.
The composite board with the adjustable concave-convex surface is further improved in that the balance board is a rotary cut single board or a solid board, and the wood fiber direction of the balance board is perpendicular to that of the core board.
The composite board with the adjustable concave-convex board surface is further improved in that a groove is formed in the surface, which is attached to the core board, of the balance board; or the opposite surface of the balance plate, which is attached to the core plate, is provided with a groove.
The composite board with the adjustable concave-convex surface is further improved in that the balance board is made of a metal material, an inorganic non-metal material or a high polymer material.
The composite board with the adjustable concave-convex board surface is further improved in that the composite board further comprises a connecting edge strip arranged on the end surface of the core board.
The composite board with the adjustable concave-convex board surface is further improved in that the connecting side strips on the end surface of the core board are made of wood, bamboo, wood plastic, high polymer materials or non-metal materials.
Drawings
Fig. 1 is a schematic structural view of a composite board with an adjustable unevenness of a board surface according to a first embodiment of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic diagram of the internal structure of the structure of fig. 1 with a part of the balance plate omitted.
Fig. 4 is a schematic cross-sectional view of a rotary cut veneer used for a core board of a composite board with adjustable concave-convex and bending directions of the board surface according to the present invention.
Fig. 5 is a schematic cross-sectional view of a core plate of the present invention having straight grooves on the upper surface thereof.
Fig. 6 is a schematic cross-sectional view of a core plate of the present invention having straight grooves on the lower surface thereof.
Fig. 7 is a schematic cross-sectional view of the core plate of the present invention having inclined grooves on the upper surface thereof.
Fig. 8 is a schematic cross-sectional view of the core plate of the present invention having oblique grooves on the lower surface thereof.
Fig. 9 is a schematic cross-sectional view of a core plate provided with straight grooves with a depth from deep to shallow to deep.
Fig. 10 is a schematic perspective view of the core board shown in fig. 9.
Fig. 11 to 14 are schematic cross-sectional views of the core plate of the composite board provided with the inclined grooves with different inclination angles.
Fig. 15 and 16 are schematic structural views of the composite sheet according to the present invention in which the sheet surface is in two uneven states.
Fig. 17 is a schematic structural view of a core plate of the present invention provided with oblique grooves arranged in a mirror image manner with a central portion as an axis.
Fig. 18 is a schematic structural view of a core plate provided with straight grooves with a depth from deep to shallow to deep.
Fig. 19 is a schematic structural view of the core plate of the present invention having inclined grooves with a depth from deep to shallow to deep.
Fig. 20 is a schematic structural view of a core board provided with straight grooves according to the present invention.
Fig. 21 is an exploded view of a composite board with an adjustable unevenness of the board surface according to a second embodiment of the present invention.
Fig. 22 is an assembled view of the structure shown in fig. 21.
Fig. 23 and 24 are schematic structural views of a composite board material with an adjustable unevenness of a board surface according to still another embodiment of the present invention.
Fig. 25 is a side view of a core plate having straight grooves formed therein, the grooves having a depth from deep to shallow to deep.
Fig. 26 is a schematic perspective view of the structure shown in fig. 25.
Fig. 27 is a schematic view of the third embodiment of the composite board with the concave-convex adjustable surface of the invention, in which the internal structure of the balance plate is omitted.
Fig. 28 is a schematic structural view of a composite board with an inner concave surface as a wall veneer.
Fig. 29 is a top view of fig. 28.
Fig. 30 is a partially enlarged schematic view at a corner of fig. 28.
Fig. 31 is a schematic structural view of a circular arc-shaped composite plate wrapped around a cylinder.
Fig. 32 is an internal exploded view of a fourth embodiment of the composite board with adjustable unevenness of the board surface according to the present invention.
Fig. 33 is a schematic view of the combination of the internal structure shown in fig. 32.
Fig. 34 is an exploded view of a composite board with an adjustable unevenness on the board surface according to a fifth embodiment of the present invention.
Fig. 35 is a schematic structural view of a composite board with an adjustable unevenness on the board surface according to a sixth embodiment of the present invention.
Fig. 36 to 38 are schematic structural views of another embodiment of a composite board with adjustable unevenness of a board surface according to the present invention.
Fig. 39 is an exploded view of a composite board with an adjustable unevenness on the board surface according to a seventh embodiment of the present invention.
Fig. 40 is an assembled view of fig. 39 with a portion of the balance plate omitted.
Fig. 41 is an exploded view of a composite board with an adjustable unevenness on the board surface according to an eighth embodiment of the present invention.
Fig. 42 is an enlarged partial view of a groove shown in fig. 41.
FIG. 43 is a schematic view of the structure shown in FIG. 41.
Fig. 44 is an enlarged partial view of a groove shown in fig. 43.
Fig. 45 and 46 are schematic structural views of two preferred patterns of grooves.
Fig. 47 is an exploded view of a ninth embodiment of the composite board with adjustable unevenness on the board surface according to the present invention.
FIG. 48 is a schematic view of a preferred embodiment of the present invention with grooves on the balancing plate.
Fig. 49 is an exploded view of a composite board with an adjustable unevenness on the board surface according to a tenth embodiment of the present invention.
Fig. 50 is an exploded view of a composite board with an adjustable unevenness on the board surface according to an eleventh embodiment of the present invention.
Fig. 51 is an exploded view of a composite board with an adjustable unevenness on the board surface according to a twelfth embodiment of the present invention.
Fig. 52 and 53 are schematic structural views of two other embodiments of the composite board material with adjustable unevenness of the board surface according to the present invention.
Fig. 54 is a schematic view of the internal structure of a composite board with an uneven surface according to a thirteenth embodiment of the present invention, with parts of the face plate and the core plate omitted from the end portions.
Fig. 55 is an exploded view of the internal structure shown in fig. 54.
Fig. 56 and 57 are schematic structural views of a composite board material with an adjustable unevenness of a board surface according to still another embodiment of the present invention.
Fig. 58 is an exploded view of a composite board having an uneven surface according to a fourteenth embodiment of the present invention.
Fig. 59 is an exploded view of a fifteenth embodiment of the composite board with an adjustable unevenness of the board surface of the composite board according to the present invention, with parts of the face board and the core board omitted.
Fig. 60 is a schematic structural view of a sixteenth embodiment of a composite board with an adjustable unevenness on the board surface according to the present invention, with parts of the face plate and the core plate omitted.
Fig. 61 is an exploded view of a seventeenth embodiment of the composite board according to the present invention, the surface roughness of which can be adjusted.
Fig. 62 is an assembled view of fig. 61 with portions of the face plate and core plate omitted.
Fig. 63 is an exploded view of a solid wood three-layer composite board according to the prior art.
FIG. 64 is a schematic view of multiple sandwich panels of FIG. 63 connected together by string.
Fig. 65 is an exploded view of a rotary-cut veneer multi-layer solid wood composite board in the prior art.
Fig. 66 is an exploded view of a rotary-cut base plate composite sheet of the prior art.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a composite board with an adjustable concave-convex board surface and an adjustable bending direction, which is used for realizing conscious, scientific and reasonable application of wood stress. Specifically, the stress of the wood is controlled through the angle, the depth and the density of the grooves, so that the deformation and bending direction of the wood board surface is adjusted, the regular deformation direction of the rotary-cut wood is flexibly applied, artificial and effective good control is realized, and the corresponding market demands are met. The structure of the composite board of the present invention capable of adjusting the unevenness and the curvature of the board surface will be described with reference to the accompanying drawings.
Referring to fig. 1, a schematic structural diagram of a first embodiment of a composite board with an adjustable concave-convex and curved surface according to the present invention is shown. Referring to fig. 2, an exploded view of fig. 1 is shown. Referring to fig. 3, a schematic structural view of the structure of fig. 1 with a portion of the balance plate omitted is shown. The composite board of the present invention, which can adjust the unevenness and the curvature of the board surface, will be described with reference to fig. 1 to 3.
As shown in fig. 1 to 3, the composite board 20 of the present invention includes a core board 21 and a balance board 23, wherein a plurality of grooves are formed on a surface of the core board 21 in a direction consistent with a wood fiber direction of the core board, and the concave-convex and bending state of the core board 21 is adjusted by the grooves. The balance plate 23 is attached to the surface of the core plate 21 with the grooves.
The wood has the following characteristics due to different materials and different material drawing modes: the invention relates to a rotary cutting board for logs, which is characterized in that the logs are radial-cut, nicked and chordally cut solid boards with different positions in a sawing mode, and all have different stresses and different deformation direction laws. Preferably, the corresponding arrangement and combination are carried out through the angle, the depth and the density of the grooves, and accordingly, the concave-convex and bending states of the board surface can be adjusted.
The balance plate is arranged on the core plate and can be used as a decorative surface, so that the composite plate only has two layers of structural plates, the glue consumption can be reduced, the negative influence caused by formaldehyde is reduced, the production efficiency is improved, and the production cost is reduced.
In one embodiment of the present invention, as shown in fig. 4, the core plate 21 is a veneer lathe cut, and has an inner concave surface 213 and an outer convex surface 211, and the inner concave surface 213 of the veneer lathe cut is likely to form a blind crack 210 caused by the machining of the lathe cut. Fig. 4 shows the natural state of the rotary-cut veneer after drying, which is curved in a shape of an arc with a middle part arched. According to the invention, aiming at the shape of the rotary-cut veneer formed by processing, a plurality of grooves, such as a straight groove 214a, are formed on the outer convex surface 211 of the rotary-cut veneer, as shown in fig. 5 and 7, or a plurality of grooves, such as an inclined groove 212a, are formed on the inner concave surface 213 of the rotary-cut veneer, as shown in fig. 6 and 8, the concave-convex state of the veneer surface is adjusted by the grooves, so that the curvature of the rotary-cut veneer is effectively controlled, and the purpose of adjusting the bending direction and the bending degree of the rotary-cut veneer is achieved without using a die.
According to the rule of finished products produced by the solid wood composite wood floor for a long time, the wood floor is usually subjected to stress deformation after glue used by the floor panel, the thick core plate and the balance bottom plate is attached and cured, so that the regular forward bending phenomenon that the two ends of the long-side middle part of the floor are bent upwards occurs, as shown in a figure 4, the natural bending state of the rotary-cut core plate 21 is just opposite to the forward bending phenomenon, and the rotary-cut core plate 21 can be used after being adjusted due to the fact that the bending radian of the rotary-cut core plate 21 is large. Referring to fig. 9 and 10, in the present invention, grooves, such as straight grooves 214b, are formed on the outer convex surface 211 of the core plate 21 formed by rotary cutting, so as to adjust the core plate 21 to be in a slightly arched middle arc state, and after the balance plate 23 is attached to the core plate (see fig. 27), a two-layer composite plate 20 is assembled, wherein the cross section of the composite plate 20 is in an arc state that the middle is slightly arched and the two end sides are slightly bent downward, as shown in fig. 16, the long side plate surface of the composite plate 20 is in a downward bent arc shape. When the outer convex surface of the composite board core plate 21 which is bent downwards and is arc-shaped is provided with a plurality of grooves, the composite board core plate can be used as a wood floor, and can be more flexible and comfortable to be attached to the ground, so that the composite board core plate is convenient to install, the core plate 21 keeps the soft arc-shaped state with the two ends downwards under the action of the internal stress of the core plate, the phenomenon that the wood floor is bent or warped when the wood floor is used for a long time can be well inhibited, and the paving quality and the installing efficiency of the wood floor can be improved, and the wood floor can be used smoothly and stably for a long time. In another embodiment, as shown in fig. 15, the core board 21 can be adjusted by the grooves to be in a state of bending slightly downwards at the two ends and a flat state at the middle, and after the balance board 23 is attached to the core board, a two-layer composite board 20 is assembled, and the composite board 20 is also in a state of bending slightly downwards at the two ends and the flat side at the middle. And the composite bottom with two end sides bent downwards is more flexible and more conformable when being laid, and is convenient to install. In another embodiment, as shown in fig. 4, a groove is formed in the inner concave surface 213 of the core plate 21 formed by rotary cutting, the adjustable core plate 21 has a larger curvature, the curvature can be adjusted to a quarter of a circular arc at the maximum, as shown in fig. 28 to 30, the groove is formed in the inner concave surface 213 of the core plate 21, the inner concave surface 213 of the core plate 21 is in a concave curved surface state, a balance plate 23 is attached to the inner concave surface 213, the balance plate 23 is also used as a facing, the outer concave surface of the composite plate is a concave curved surface, and can be used for decorating a corner of a wall surface, the composite plate with the concave curved surface is butted with the flat composite plate, so as to form a circular arc transition at the corner of the wall surface, thereby improving the aesthetic feeling of decoration and the convenient construction with low cost.
In another preferred embodiment, the core is a solid wood board. The solid wood board can be used for wooden doors, cambered surface wooden doors or combined into curved surface partition walls and the like.
In one embodiment of the present invention, the balance plate 23 is a rotary-cut single plate or a solid plate, and the wood fiber direction of the balance plate is perpendicular to the wood fiber direction of the core plate 21. The wood fiber direction of the balance plate is perpendicular to that of the core plate, the wood fibers can be mutually restrained and balanced, the balance plate applies balance force to the surface of the core plate provided with the grooves, the core plate is limited, and the structural stability of the core plate is improved.
In another preferred embodiment, the balance plate 23 is made of a metal material, an inorganic non-metal material or a polymer material. Specifically, the raw material of the balance board can be wood, paper, bamboo, stone, polymer material, mixed material of stone powder and thermoplastic polymer (SPC), wood powder, rice hull, straw, bamboo and other plant fibers mixed into new wood material (WPC), melamine board material and the like.
In one embodiment of the present invention, the included angle formed between the groove and the surface of the core plate 21 is in a range of 30 degrees or more and 150 degrees or less. Therefore, the groove of the invention can be an inclined groove, can also be a straight groove, and can also comprise an inclined groove and a straight groove.
In the first embodiment, as shown in fig. 1 to 3, the grooves formed on the upper surface 211 of the core plate 21 are inclined grooves 212a, and the inclined grooves 212a are arranged in a splayed manner two by two. The eight-shaped character can be a regular eight-shaped character or an inverted eight-shaped character. The example shown in fig. 1 is inverted eight-shaped. Preferably, the two splayed oblique grooves 212a are arranged at equal intervals.
The inclined grooves which are arrayed in a splayed shape in a pairwise mode and are sawed at the inclined angles can play a good role in balancing deformation stress of the core plate and avoiding great reduction of static bending strength of the core plate, keep the shape of the surface of the core plate and inhibit the core plate from being deformed in a forward bending mode. The composite board formed by combining the inclined grooves arranged in the splayed mode has better stability, when the inclined grooves arranged in the splayed mode are arranged on the core board in a pairwise mode, the inclined grooves are inclined towards two directions, when the core board is pressed or damped to deform, deformation can be generated towards two directions, deformation forces in the two directions can be offset mutually, the balance board attached to the core board cannot be influenced, and therefore structural stability of the composite board is improved.
In the first embodiment, as shown in fig. 1 to 3, the wood fiber direction of the core 21 is the transverse direction, and the arrangement direction of the inclined grooves 212a is also the transverse direction. The balance board 23 is a wood board whose wood fiber direction is the longitudinal direction.
In the second embodiment, as shown in fig. 20 to 22, the grooves opened in one surface of the core 21 are straight grooves 214a, and the straight grooves 214a are arranged at equal intervals. The wood fiber direction of the core plate 21 is transverse, the arrangement direction of the straight grooves 214a is also transverse, and the balance plate 23 is a wood plate, and the wood fiber direction is longitudinal.
In yet another embodiment, as shown in fig. 23 and 24, the grooves formed in the upper surface 211 of the core plate 21 include inclined grooves 212b, and the inclined grooves 212b are arranged in a mirror image arrangement with the central portion of the core plate 21 as an axis. Further, a straight groove 214a is provided in the center of the core plate 21, and the inclined grooves 212b are arranged in a mirror image arrangement with the straight groove 214a as an axis.
In one embodiment of the present invention, the grooves are arranged in a depth from deep to shallow to deep. As shown in fig. 9 and 10, in this example, the grooves are straight grooves 214b, and the depth of the straight grooves 214b changes from deep to shallow to deep, that is, the depth of the straight grooves in the central portion of the core plate 21 is shallow, and the depth of the straight grooves on both end sides is shallow to deep in order from the central portion to both end sides. In this example, the straight grooves 214b are arranged at equal intervals, the wood fiber direction of the core 21 is the longitudinal direction, and the arrangement direction of the straight grooves 214b is also the longitudinal direction. Accordingly, the internal stress of the core plate 21 at the deeper straight grooves is smaller than that at the shallower straight grooves, so that the deformation at both end sides of the core plate 21 can be reduced and the control of the curvature of the upper surface of the core plate 21 can be reduced. As shown in fig. 18, the grooves are straight grooves 214b in this example, and the depth of the straight grooves 214b varies from deep to shallow to deep, and in this example, the wood fiber direction of the core 21 is the transverse direction, and the arrangement direction of the straight grooves 214b is also the transverse direction. As shown in fig. 19, in this example, the grooves are two-by-two splayed inclined grooves 212c, and the depth of the inclined grooves 212c is arranged from deep to shallow to deep.
In the third embodiment, as shown in fig. 25 to 27, the core 21 is provided with straight grooves 214b, the depth of the straight grooves 214b varies from deep to shallow to deep, the wood fiber direction of the core 21 is the transverse direction, the arrangement direction of the straight grooves 214b is also the transverse direction, and the balance plate 23 is a wood plate, the wood fiber direction of which is the longitudinal direction.
In one embodiment of the present invention, the trenches are arranged in a depth from shallow to deep to shallow. The grooves can be straight grooves or inclined grooves, and when the grooves are shallow to deep and then shallow, the deformation stress of the shallow part of the groove depth is larger than that of the deep part of the groove depth, so that the two ends of the core plate can generate larger radians, and the bending direction of the core plate can be adjusted and controlled. If the groove is arranged on the outer convex surface of the core plate, the decorative plate can meet the decorative requirements of certain arching radian or tendency to be flat, such as the cosmetic attachment of floors, special-shaped wall surfaces and cylinders. If the slot sets up the interior concave surface at the core, applicable in the decoration demand that has certain indent radian, for example have the makeup of negative surface corner wall and laminate and use. In another embodiment, the core 21 is provided with straight grooves 214c, the straight grooves 214c are arranged from sparse to dense to sparse, as shown in fig. 28 to 30, the distance between the grooves is from far to near to far, the part of the board surface of the core 21 with far distance between the grooves tends to be flat, the part of the board surface with near distance between the grooves has a certain concave radian, the core 21 is adhered with a balance plate 23 and then combined to form the composite board 20, the composite board 20 shows a deformation bending close to a 90-degree arc board surface, the composite board 20 has a concave curved surface and is suitable for being adhered at a corner of a negative surface of a wall surface, and the concave part in the middle of the composite board 20 and the flat straight parts at two end sides are laid on the wall surface, so that the effects of excessive arc of the negative corner of the wall surface, paving, and convenient construction are achieved.
In one embodiment of the present invention, the grooves are arranged from sparse to dense to sparse, and the grooves may be straight grooves or inclined grooves. The density of the grooves is utilized to adjust the distribution of the internal stress of the core plate, thereby obtaining the control of the required radian shape of the plate surface. The grooves are arranged from sparse to dense to sparse, so that the surface of the core plate has a larger curvature.
The stress of the core plate corresponding to the sparse part of the grooves is larger than that of the corresponding dense part of the grooves, so that the grooves are arranged at intervals in a sparse and dense mode, and when the plate is in a large curved arc transition, the grooves have the space for the plate to deform and absorb the single-sided curved turning, and the curved radian of the core plate is controlled and adjusted.
In one embodiment of the invention, the grooves are arranged in a dense-to-sparse-to-dense arrangement. This allows the surface of the core plate to have a small curvature.
In one embodiment of the present invention, the grooves are arranged in mirror image with the central portion of the core 21 as the axis. As shown in fig. 13, the grooves are inclined grooves 212b, the inclined grooves 212b are arranged in a mirror image manner with the central portion of the core plate 21 as an axis, and the sum of the inclination angle A1 of the inclined groove 212b on one end side and the inclination angle A2 of the inclined groove 212b on the other end side is 180 degrees, wherein the inclination angles A1 and A2 are the included angle between the upper surface of the core plate 21 as a reference surface and the inclined groove 212b in the clockwise direction. The ends of the inclined grooves 212b in the core 21 are disposed close to each other. As shown in fig. 14 and 17, another way of mirror image of the angled grooves 212b is shown, the ends of the angled grooves 212b within the core 21 being located away from each other. The inclined grooves are arranged in a mirror image manner, the deformation stress directions of the core plates are opposite, and the deformation stress directions can be mutually counteracted, so that the regular bending deformation radian of the core plates can be inhibited or adjusted. As shown in fig. 11 and 12, the grooves of the core plate 21 include an inclined groove 212b and a straight groove 214a, the straight groove 214a is provided in the middle, and the inclined grooves 212b are provided on both end sides of the straight groove 214a and are arranged in a mirror image with the straight groove 214a as an axis. The stress in the middle of the core plate 21 is reduced by the straight groove 214a provided in the middle, and the degree of soft bending of the surface of the core plate 21 can be increased.
The inclined grooves arranged in a mirror image manner can adjust the tile shape of the board surface, and the concave-convex state, the bending degree and the flatness of the board surface can be adjusted. Furthermore, according to different thicknesses of the core plate, the flexibility balance degree, the bending direction and the bending degree of the surface of the core plate can be well controlled by combining the adjustment of the sawing depth of the grooves.
The grooves formed in the core plate can be arranged independently at different angles, can also be arranged at various different angles in a combined manner, can be arranged at equal intervals with different saw groove depths, can also be arranged at non-equidistant intervals (namely at different density degrees) with different saw groove depths, and can also be arranged at different angles, different saw groove depths and different density degrees. The various arrangement combinations all aim at adjusting the stress and the curvature of the core plate, and the manual control and adjustment of the concave-convex state and the curvature of the core plate can be realized by reasonably adjusting the stress of the core plate and the different thickness collocation of the balance plates. The core plate 21 processed by the wood has certain deformation internal stress due to different growth parts of the wood, the edge materials and the core materials, irregular growth wood fibers, knots, material drawing parts and the like, particularly the rotary cut formed plate, the log is clamped and driven to rotate by a mechanical clamping of rotary cutting equipment, a cutter regularly advances towards the direction of the log to form a thick core veneer, the tightness, the density and the expansion and contraction of two plate surfaces of the thick core veneer have certain rules, so that the rotary cut veneer can regularly warp. The invention realizes the control of the bending direction of the board by matching different depths, different angles and different density of the grooves with the physical stress of the wood, and the mutual balance action of the self deformation stress of the balance board and the deformation stress of the core board is matched and adhered to ensure that the board surface flatness or the bending shape of the composite board can be manually adjusted and controlled.
In one embodiment of the present invention, as shown in fig. 32 and 33, the composite board 20 further includes a connection edge strip 27 mounted on an end surface of the core 21. The connecting edge strips 27 are arranged on the end face of the core plate 21 and used for splicing the composite plates, and the connecting edge strips 27 of the two composite plates are provided with structures for splicing, so that the splicing combination between the composite plates can be realized.
In the fourth embodiment, as shown in fig. 32 and 33, the core plate 21 has two long sides and two short sides, the connecting edge strips 27 are provided on the end surfaces of the two long sides, in this embodiment, the mortise 215 is provided on the end surface of the core plate 21, the tenon 271 is correspondingly provided on the connecting edge strips 27, and the connecting edge strips 27 are mounted on the core plate 21 by splicing and combining the tenon 271 and the corresponding mortise 215.
In the fifth embodiment, as shown in fig. 34, a tenon 216 is provided on the end surface of the core plate 21, a corresponding mortise 273 is provided on the edge strip 27, and the edge strip 27 is mounted on the core plate 21 by splicing and combining the tenon 216 and the corresponding mortise 273. As shown in fig. 35, in the sixth embodiment, the structure of the attachment bead 27 is the same as that of the fifth embodiment except that the grooves provided in the core plate 21 are straight grooves 214a, and the grooves in the fifth embodiment are inclined grooves 212a.
As shown in fig. 36 to 38, another connection mode of the connection edge strip 27 and the core plate 21 is shown, in this embodiment, a tenon 216 and a mortise 215 are provided on the end surface of the core plate 21, a mortise 273 and a tenon 271 are correspondingly provided on the connection edge strip 27, and the connection edge strip 27 is mounted on the core plate 21 by splicing and combining the tenon 216 and the corresponding mortise 273 and the mortise 215 and the corresponding tenon 271.
In one embodiment of the present invention, as shown in fig. 39, the surface of the balance plate 23 that is in contact with the core plate 21 is provided with a groove.
In the seventh embodiment, as shown in fig. 39 and 40, the plurality of grooves formed on the balance plate 23 are longitudinal grooves 231, and the longitudinal grooves 231 are spaced apart from each other on the balance plate 23. In the present embodiment, the straight grooves 214b are formed in the upper surface of the core 21, and the depths of the straight grooves 214b are arranged from deep to shallow to deep.
In the eighth embodiment, as shown in fig. 41 and 43, the grooves formed in the balance plate 23 are lateral grooves 233, and the lateral grooves 233 are spaced apart from each other on the balance plate 23. As shown in fig. 42 and 44, the transverse groove 233 is V-shaped. In another preferred embodiment, as shown in fig. 45, the lateral groove 233 is U-shaped. In yet another preferred embodiment, as shown in fig. 46, the lateral groove 233 is rectangular in shape.
In the ninth embodiment, as shown in fig. 47, the grooves formed in the balance plate 23 include a transverse groove 233 and a longitudinal groove 231, which are spaced apart from each other.
As shown in fig. 48, the grooves formed on the balance plate 23 are oblique grooves 235, the oblique grooves 235 are arranged at intervals along the transverse direction and the longitudinal direction of the balance plate 23, and the oblique grooves 235 are arranged in a zigzag manner.
In an embodiment of the present invention, as shown in fig. 49, the composite board 20 further includes a mesh cloth 25 having a size corresponding to that of the core board 21, the mesh cloth 25 is attached to the opposite surface of the core board 21 to which the balance board 23 is attached, that is, the balance board 23 and the mesh cloth 25 are attached to the upper and lower surfaces of the core board 21.
In another embodiment, the composite board 20 further includes a mesh cloth 25 having a size corresponding to that of the core plate 21, and the mesh cloth 25 is sandwiched between the balance plate 23 and the core plate 21.
The grid cloth 25 has good alkali resistance, flexibility and warp-weft high-strength tensile resistance, and the composite board pasted with the grid cloth has higher static bending strength and stable tensile force for balancing the board surface, so that the core board 21 is effectively pulled to avoid the breakage of the core board caused by deeper grooves, the shrinkage or expansion deformation of the board in the extremely harsh environment of the core board 21 is reduced, and the long-term leveling or bending shaping stability of the board can be better ensured.
Preferably, the mesh cloth 25 can be made of plant fiber, glass fiber or EPS.
In the tenth embodiment, as shown in fig. 49, the mesh cloth 25 is attached to the lower surface of the core plate 21, the balance plate 23 is attached to the upper surface of the core plate 21, and the upper surface of the core plate 21 is provided with grooves which are straight grooves 214b.
In the eleventh embodiment, as shown in fig. 50, the mesh cloth 25 is attached to the lower surface of the core plate 21, the grooves formed on the core plate 21 are the inclined grooves 212b, and the inclined grooves 212b are arranged in a mirror image manner with the central portion as the axis.
In the twelfth embodiment, as shown in fig. 51, the mesh cloth 25 is attached to the upper surface of the core plate 21, and the mesh cloth 25 is interposed between the balance plate 23 and the core plate 21.
Referring to fig. 52 and 53, two other embodiments of the composite board 20 are shown, in which the mesh cloth 25 is sandwiched between the balance board 23 and the core board 21, the mesh cloth 25 is attached to the lower surface of the core board 21, and the upper surface of the core board 21 is attached to the face board 24. In the example shown in fig. 52, the lower surface of the core plate 21 is formed with straight grooves 214a, and in the example shown in fig. 53, the lower surface of the core plate 21 is formed with inclined grooves 212a.
The present invention also provides a composite board with adjustable concave-convex and bending of the board surface, and the structure of the composite board is explained below.
As shown in fig. 54 and 55, the composite board 30 includes a core board 31, a balance board 33 and a face board 35, wherein a plurality of grooves are formed on one surface of the core board 31, and the concave-convex state of the core board 31 is adjusted by the plurality of grooves. The balance plate 33 is attached to the surface of the core plate 31 where the grooves are opened, and the wood fiber direction of the balance plate 33 is perpendicular to the wood fiber direction of the core plate 31. The face plate 35 is attached to the opposite surface of the core plate 31 to which the balance plate 33 is attached, and the wood fiber direction of the face plate 35 is perpendicular to that of the core plate 31. That is, the face plate 35 and the balance plate 33 are disposed on the upper and lower surfaces of the core plate 31, the surface of the core plate 31, which is attached to the balance plate 33, is provided with a groove, and the face plate 35 is exposed to the outside when the composite board 30 is used, and can be used as a decorative surface.
The composite board 30 of the present invention adopts a three-layer structure board, wherein the panel 35 plays a role of a facing, and a noble solid wood board can be selected to improve the visual effect of the composite board 30.
In the example shown in fig. 54 and 55, the core plate 31 has an upper surface 311 and a lower surface 313, the grooves are provided on the lower surface 313, the balance plate 33 is attached to the lower surface 313 of the core plate 31, and the face plate 35 is attached to the upper surface 311 of the core plate 31.
As shown in fig. 54 and 55, the core plate 31 is a rotary cut single plate, the rotary cut single plate has an inner concave surface and an outer convex surface, the inner concave surface of the core plate 31 is sawed to form a groove, the core plate 31 can be adjusted to have a larger bending degree, the face plate 35 is attached to the outer convex surface of the core plate 31, the combined composite plate 30 has a larger arched radian, the effect can be seen in fig. 31, the composite plate 30 can be used as a cylindrical makeup attachment, and the face plate 35 can be a noble veneer. The composite board 30 can also be used as a decoration of a corner curved surface (external corner) protruding outwards from a wall surface.
The groove is sawed on the outer convex surface of the core plate 31, the adjustable core plate 31 tends to be flat, the panel 35 is attached to the inner concave surface of the core plate, and the surface of the combined composite plate 30 tends to be flat and is suitable for makeup and attachment on the ground and the wall.
In yet another embodiment, as shown in fig. 56 and 57, a panel 35 is attached to the upper surface 311 of the core plate 31, a balance plate 33 is attached to the lower surface 313 of the core plate 31, the grooves formed on the lower surface of the core plate 31 include an inclined groove 312b and a straight groove 314a, the straight groove 314a is disposed in one row and located in the middle of the core plate 31, and the inclined grooves 312b are arranged in a mirror image arrangement with the straight groove 314a as an axis.
In another preferred embodiment, the core 31 is a solid wood board.
Preferably, the corresponding arrangement and combination are carried out through the angle, the depth and the density of the grooves, and accordingly, the concave-convex and bending states of the board surface can be adjusted. In one embodiment, the grooves are arranged in a depth from deep to shallow to deep. In another embodiment, the grooves are arranged in a depth from shallow to deep to shallow. In one embodiment, the grooves are arranged in a pattern from sparse to dense to sparse. In another embodiment, the grooves are arranged in a dense-to-sparse-to-dense manner. In one embodiment, the grooves are arranged in mirror image arrangement with the middle portion as an axis. The included angle formed between the grooves arranged on the surface of the core plate 31 and the surface of the core plate 31 is more than or equal to 30 degrees and less than or equal to 150 degrees. Therefore, the groove of the invention can be an inclined groove, a straight groove, an inclined groove and a straight groove.
In the thirteenth embodiment, as shown in fig. 54 and 55, the grooves on the core plate 31 are inclined grooves 312a, and the inclined grooves 312a are arranged two by two in a splayed manner. The eight-shaped character can be a regular eight-shaped character or an inverted eight-shaped character. The example shown in fig. 54 is inverted eight-shaped. Preferably, the two splayed oblique grooves 312a are arranged at equal intervals.
In the fourteenth embodiment, as shown in fig. 58, the composite board 30 further includes attachment tabs 37 attached to both end side edges of the core plate 31.
In the fifteenth embodiment, as shown in fig. 59, the grooves provided in the core plate 31 are straight grooves 314a, and the straight grooves 314a are provided at equal intervals.
In the sixteenth embodiment, as shown in fig. 60, the grooves provided in the core plate 31 are straight grooves 314b, and the depths of the straight grooves 314b are arranged from deep to shallow to deep.
In the seventeenth embodiment, as shown in fig. 61 and 62, grooves are formed on the surface of the balance plate 33, which is in contact with the core plate 31, and the grooves include longitudinal grooves 331 and transverse grooves 333, which are arranged at equal intervals. In another embodiment, the opposite surface of the balance plate, which is attached to the core plate, is provided with a groove. Preferably, the balance board 33 is a wood board, and the wood fiber direction thereof is perpendicular to the wood fiber direction of the core board. The wood fiber direction of the balance plate 33 is perpendicular to that of the core plate 31, the wood fibers are mutually restrained and balanced, the balance plate 33 applies a balance force to the surface with the grooves below the core plate 31 to limit the bending stress of the core plate, and therefore the structural stability of the core plate 31 is improved.
In another preferred embodiment, the face plate 35 and the balance plate 33 can be made of metal material, inorganic non-metal material or polymer material. Specifically, the raw material of the balance board can be wood, stone, paper, bamboo and polymer materials, mixed materials of stone powder and thermoplastic polymers (SPC), plant fibers such as wood powder, rice hulls, straws and bamboos are mixed to form a new wood material (WPC), a melamine material and the like.
While the present invention has been described in detail and with reference to the embodiments thereof as shown in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.

Claims (22)

1. The utility model provides an unsmooth, crooked composite board of adjustable face which characterized in that includes:
the core board is characterized in that a plurality of grooves consistent with the wood fiber direction of the core board are formed in one surface of the core board, and the concave-convex state of the core board is adjusted through the grooves; and
the balance plate is attached to the surface of the core plate, which is provided with the groove;
the groove is a straight groove, an inclined groove or a shape formed by combining the straight groove and the inclined groove;
the outer convex surface of the core plate is provided with a groove so as to adjust the core plate to be in an arc state with the middle part slightly arched and the two end sides slightly bent downwards or adjust the core plate to be in a state with the two end sides slightly bent downwards and the middle part to be in a flat state;
the concave surface of the core plate is provided with a groove to adjust the core plate to have a larger bending radian;
the grooves are arranged in a depth from deep to shallow and then to deep mode, or the grooves are arranged in a depth from shallow to deep and then to shallow mode;
the grooves are arranged from sparse to dense to sparse or from dense to sparse to dense, the curvature of the rotary-cut veneer is effectively controlled by adjusting the concave-convex state of the veneer surface by using the grooves, and the purpose of adjusting the self bending deformation direction and the bending degree of the rotary-cut veneer is achieved under the condition of not using a die.
2. The composite board with the concave-convex and curved board surface capable of being adjusted as claimed in claim 1, wherein the included angle formed between the groove and the surface of the core board is greater than or equal to 30 degrees and less than or equal to 150 degrees.
3. The composite board with adjustable concave-convex and curved board surface as claimed in claim 1, wherein said grooves are arranged in a splayed manner two by two.
4. The composite board with adjustable concave-convex and curved board surface as claimed in claim 1, wherein the grooves are arranged in mirror image with the central part of the core board as the axis.
5. The composite board with the concave-convex and curved board surface capable of being adjusted according to claim 1, wherein the core board is a rotary cut veneer; or the core board is a solid wood board.
6. The composite board with adjustable concave-convex and curved board surface as claimed in claim 1, wherein said balance board is a rotary-cut single board or a solid board, and the wood fiber direction of said balance board is perpendicular to the wood fiber direction of said core board.
7. The composite board with the concave-convex and curved board surface capable of being adjusted as claimed in claim 6, wherein the surface of the balance board, which is attached to the core board, is provided with a groove.
8. The composite board with adjustable concave-convex and curved board surface as claimed in claim 1, wherein the balance board is made of metal material, inorganic non-metal material or high polymer material.
9. The composite board with an adjustable concave-convex and curved surface as claimed in claim 1, further comprising a mesh cloth adapted to the size of the core board, wherein the mesh cloth is attached to the opposite surface of the core board to which the balance board is attached.
10. The composite board with adjustable concave-convex board surface and bending as claimed in claim 1, further comprising a mesh fabric adapted to the size of the core board, wherein the mesh fabric is sandwiched between the core board and the balance board.
11. The composite board with adjustable concave-convex and curved board surface as claimed in claim 1, further comprising a connecting edge strip mounted on the end surface of the core board.
12. The composite board with adjustable concave-convex and curved board surface as claimed in claim 11, wherein the connecting strips on the end surface of the core board are made of wood, bamboo, wood-plastic, polymer material or non-metal material.
13. The utility model provides an unsmooth, crooked composite board of adjustable face which characterized in that includes:
the core board is characterized in that a plurality of grooves consistent with the wood fiber direction of the core board are formed in one surface of the core board, and the concave-convex state of the core board is adjusted through the grooves;
the balance plate is attached to the surface of the core plate, which is provided with the groove; and
the panel is attached to the opposite surface of the core plate, and the balance plate is attached to the opposite surface;
the groove is a straight groove, an inclined groove or a shape formed by combining the straight groove and the inclined groove;
the outer convex surface of the core plate is provided with a groove so as to adjust the core plate to be in an arc state with the middle part slightly arched and the two end sides slightly bent downwards or adjust the core plate to be in a state with the two end sides slightly bent downwards and the middle part to be in a flat state;
the concave surface of the core plate is provided with a groove to adjust the core plate to have a larger bending radian;
the grooves are arranged in a depth from deep to shallow and then to deep mode, or the grooves are arranged in a depth from shallow to deep and then to shallow mode;
the grooves are arranged from sparse to dense to sparse or from dense to sparse to dense, the curvature of the rotary-cut veneer is effectively controlled by adjusting the concave-convex state of the veneer surface by using the grooves, and the purpose of adjusting the self bending deformation direction and the bending degree of the rotary-cut veneer is achieved under the condition of not using a die.
14. The composite board with the concave-convex and curved board surface capable of being adjusted as claimed in claim 13, wherein the included angle formed between the groove and the surface of the core board is greater than or equal to 30 degrees and less than or equal to 150 degrees.
15. The composite board with an adjustable concave-convex and curved surface as claimed in claim 13, wherein said grooves are arranged in a splayed pattern in pairs.
16. The composite board with an adjustable concave-convex surface and bending of claim 13, wherein the grooves are arranged in a mirror image manner by taking the middle part of the core board as an axis.
17. The composite board with the concave-convex and curved board surface capable of being adjusted according to claim 13, wherein the core board is a rotary cut veneer; or the core board is a solid wood board.
18. The composite board with adjustable concave-convex and curved board surface as claimed in claim 13, wherein said balance board is a rotary-cut single board or a solid board, and the wood fiber direction of said balance board is perpendicular to the wood fiber direction of said core board.
19. The composite board with the concave-convex and curved board surface capable of being adjusted as claimed in claim 18, wherein the surface of the balance board, which is attached to the core board, is provided with a groove; or the opposite surface of the balance plate, which is attached to the core plate, is provided with a groove.
20. The composite board with adjustable concave-convex and curved board surface as claimed in claim 13, wherein the balance board is made of metal material, inorganic non-metal material or polymer material.
21. The composite board with adjustable unevenness and curvature of board of claim 13, further comprising a connecting edge strip mounted on an end face of the core board.
22. The composite board with adjustable concave-convex and curved board surface as claimed in claim 21, wherein the connecting strips on the end surface of the core board are made of wood, bamboo, wood-plastic, polymer material or non-metal material.
CN202010250594.7A 2020-04-01 2020-04-01 Composite board with adjustable concave-convex and bending surface Active CN111300928B (en)

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CN113510810A (en) * 2021-07-07 2021-10-19 郝鑫 Bent hard plate and bending processing method
CN114311174A (en) * 2021-12-30 2022-04-12 龙岩市锐美家装饰材料有限公司 Preparation method of bendable melamine veneer

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CN102352682A (en) * 2010-08-03 2012-02-15 张家铭 Groove type solid wood medium plate and composite plate with same
CN103042576A (en) * 2012-11-30 2013-04-17 张家铭 Composite board of solid wood or bark-peeled single baseboard with grooves
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