CN101323124B - Bamboo wood original state regular polygon recombined material and method for producing the same - Google Patents
Bamboo wood original state regular polygon recombined material and method for producing the same Download PDFInfo
- Publication number
- CN101323124B CN101323124B CN2007101790017A CN200710179001A CN101323124B CN 101323124 B CN101323124 B CN 101323124B CN 2007101790017 A CN2007101790017 A CN 2007101790017A CN 200710179001 A CN200710179001 A CN 200710179001A CN 101323124 B CN101323124 B CN 101323124B
- Authority
- CN
- China
- Prior art keywords
- bamboo
- units
- section
- wood
- regular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 345
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 345
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 345
- 241001330002 Bambuseae Species 0.000 title claims abstract description 343
- 239000011425 bamboo Substances 0.000 title claims abstract description 343
- 239000000463 material Substances 0.000 title claims abstract description 108
- 239000002023 wood Substances 0.000 title claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000005215 recombination Methods 0.000 claims abstract description 49
- 230000006798 recombination Effects 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000003801 milling Methods 0.000 claims abstract description 20
- 210000001145 finger joint Anatomy 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 13
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims description 2
- 239000007767 bonding agent Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000009966 trimming Methods 0.000 claims 1
- 239000003292 glue Substances 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 210000000481 breast Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 241000209128 Bambusa Species 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 240000003096 Chimonobambusa quadrangularis Species 0.000 description 1
- 244000302661 Phyllostachys pubescens Species 0.000 description 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Abstract
The invention provides a bamboo original state multiparty recombination material, which is characterized in that the external surface of the position of bamboo segment with equivalent diameter are processed into regular polygonal bamboo units; bamboo recombination material is obtained by arranging the bamboo units in parallel by the edges of the cross sections, vertical finger joint and prolonged bonding. The basic manufacturing method comprises the sawing of segments, milling of regular polygons, milling of finger tenons, glue application and assembly, compression and heating, cold solidification and other working procedures. The edges of the regular polygonal bamboo units range from four to eight. The bamboo original state multiparty recombination material has the advantages that bamboo has the physical structural characteristics of hollowness, conicity and bamboo joint; by arranging the hollow bamboo units in parallel by the edges and extending vertically at will, the recombination material maintains the natural structure of bamboo, and structural material with high strength, long length and large span can be manufactured; the material can replace wood, improve the utilization ration of bamboo, save forest resources, and can replace concrete, steel and other structural materials in certain usages, and the natural-intimate ability of structural material is improved.
Description
Technical Field
The invention relates to an original state multi-party recombined material of bamboo wood and a manufacturing method thereof, belonging to the field of materials.
Background
Bamboo resources in China are rich and are the first major bamboo resource nation in the world. The bamboo has the characteristics of rapid growth, short felling period, hollow bamboo joints, strong shearing resistance, excellent physical properties and the like, the hollow bamboo is recombined and processed into the composite material capable of replacing wood, the original structure and the physical properties of the bamboo can be fully utilized, the composite material is processed into an environment-friendly green material, and the contradiction between supply and demand of wood in China is effectively relieved. The existing bamboo recombination technology mainly comprises the following steps:
(1) bamboo square recombination technology: the hollow bamboo is split into arc bamboo blanks, the bamboo blanks are processed into bamboo square strips with certain specifications, and the bamboo square strips are glued together to form the bamboo board or the bamboo square material. The disadvantages and shortcomings of this technique are: the arc-shaped bamboo blanks are cut into square strips, so that a large amount of raw materials are wasted, and the utilization rate of the bamboo materials is less than 30 percent.
(2) The shredded bamboo recombination technology comprises the following steps: and crushing the whole bamboo, and recombining and gluing the whole bamboo together to form the bamboo board or the bamboo square board. The disadvantages and shortcomings of this technique are: 1) the texture of the natural bamboo is damaged to different degrees; 2) the interior of the bamboo board or the bamboo square material is easy to form micro gaps, which affects the quality of the section.
(3) The small-diameter bamboo recombination technology comprises the following steps: rubbing the small-diameter bamboo wood into bamboo bundles, recombining and gluing the bamboo bundles together to form the bamboo board or the bamboo square material. The disadvantages and shortcomings of this technique are: the macrostructure of the natural bamboo wood is damaged, the original state of the bamboo wood is lost, the surface quality is not good enough, and the high-grade solid wood cannot be replaced.
(4) The arc bamboo original state recombination technology comprises the following steps: the bamboo is formed by arranging, pressurizing and bonding arc-shaped bamboo boards which have the same inner arc radius and outer arc radius and smooth bamboo green surfaces and bamboo yellow surfaces in parallel in the same arc direction. The disadvantages and shortcomings of this technique are: because the material is formed by overlapping arc-shaped bamboo chips, the natural structures of the hollow bamboo and the bamboo partition are not utilized, and the manufacture of large-scale column or beam is not economical.
The four bamboo recombination technologies do not fully reflect the characteristics of the bamboo such as structure, physics and the like, have low mechanical property in unit mass, and can not meet the requirements of long-range and large-span recombination, so that the four bamboo recombination technologies cannot be used as structural materials with high requirements on mechanical strength, length and span.
Disclosure of Invention
The first purpose of the invention is to improve the defects of the prior art and provide a reconstituted bamboo structure material which can keep the natural structure of bamboo and has high strength, large length, large span and high utilization rate of bamboo.
The invention also aims to provide a method for manufacturing the bamboo wood original state multi-square restructuring material.
In order to achieve the purpose, the invention adopts the following technical scheme:
the bamboo original state multi-party recombination material provided by the invention is composed of a plurality of bamboo units with regular polygonal cross section outlines, wherein one end or two ends of each bamboo unit are provided with a joggle structure, part of side planes or all side planes of the outer surfaces of the bamboo units are coated with an adhesive layer, and the side surfaces of the bamboo units are bonded together through the adhesive layer to form a transverse edge-to-edge arrangement structure so as to realize transverse arbitrary expansion; the binding agent layer is coated on the end joggle structure joint surface of the regular polygonal bamboo wood unit, and one end or two ends of the bamboo wood units are fixedly connected together in a binding mode through the binding agent layer, so that the longitudinal arbitrary extension is realized.
The bamboo unit is a bamboo section with a certain length cut along the cross section of the bamboo, a plurality of longitudinal planes are processed on the outer surface of the bamboo unit, namely the outer surface of the hollow cylindrical bamboo section which is not standard is processed according to a standard regular polygon mode to obtain the bamboo section with the section of a non-standard regular polygon with two ends both being standard regular polygons, or a non-standard regular polygon with one end being the standard regular polygon and the other end being the original partial arc and partial straight line of the bamboo, or a non-standard regular polygon with two ends being the original partial arc and partial processing straight line of the bamboo, and the bamboo section is called as a regular polygonized bamboo unit.
The number of the sides of the regular-polygonized bamboo units can be 4-8.
The number of sides of the regular polygonal bamboo unit is preferably 6. The regular hexagonal bamboo units are arranged in parallel according to a honeycomb shape in the cross section and are bonded into the bamboo original hexagonal recombinant material through the side surfaces. The orthohexagonal bamboo units are spliced transversely, the side edges of the bamboo units are attached tightly without leaving gaps, the side faces of the bamboos are processed into orthohexagonal bamboo, and the cutting amount of the wall thickness of the bamboos is small. If the number of the sides of the polygon made of bamboo is too small, the polygon is cut off too much for the thickness of the bamboo wall, which is undoubtedly the waste of the bamboo and the weakening of the bamboo strength. If the number of the side edges is too large, the area of the processed side plane is small, and the bonding strength of each bamboo wood unit in the transverse direction is reduced.
The bamboo wood original state hexagonal recombination material is formed by bamboo wood units which have the same diameter and uniform specification of regular hexagon on the outer surface, and the bamboo wood units are arranged in parallel according to a honeycomb shape by the cross section and are pressurized and heated or bonded in a cold state. Milling the outer surface of the bamboo unit into a regular hexagon with a certain specification, milling one end or two ends of the bamboo unit into a finger-shaped tenon, and extending the original hexagonal recombined bamboo material to any required length in a finger joint mode.
The bamboo units in the bamboo original state multi-party restructuring material can be composed of bamboo units with the same or different cross sections and side edges. For example, there may be specific cases where,
the bamboo units are made of bamboo with basically the same cross section and the same number of side edges; or,
the bamboo units comprise two or more groups of bamboo units, the same group of bamboo units have the same cross section size and edge number, different groups of bamboo units have different cross section sizes and/or edge numbers, the same group of bamboo units form a longitudinal extension structure through a joggle structure, and the same group of bamboo units or different groups of bamboo units form a transverse extension structure through transverse bonding of the outer side planes; or,
the bamboo wood units are bamboo wood with basically the same cross section and the same number of side edges, and in addition, the bamboo wood units also comprise a group of wood units with the cross sections different from the cross sections of the bamboo wood units, and the cross sections of the wood units are matched with gaps formed by the mutual recombination of the bamboo wood units and are filled in the gaps.
For example, the bamboo units include a group of regular octagonal bamboo units and a group of regular quadrangular bamboo units, the side length of the outer contour of the cross section of each regular quadrangular bamboo unit is equal to or multiplied by the side length of the outer contour of the cross section of each regular octagonal bamboo unit, so that the regular quadrangular bamboo units are placed in the pores of the square cross section after the regular octagonal bamboo units are bonded;
for another example, the bamboo units include two groups of square bamboo units, and the side lengths of the bamboo units in each group are different.
The joints of the longitudinal joggle joints of the bamboo wood units are arranged in a staggered mode as much as possible.
The invention provides a method for manufacturing an original state multi-square recombined material of bamboo wood, which comprises the following steps:
(1) selecting bamboo materials with the same diameter to saw and cut into sections, and sawing the bamboo materials into bamboo sections with random lengths, wherein the section-cutting principle is as follows: 1) performing segmentation according to the difference of the diameters of the large end and the small end as a numerical value; 2) the saw kerf is selected at the non-bamboo joint;
(2) milling the outer surface of the sawed bamboo section into a regular polygonal bamboo wood unit;
(3) milling one end or two ends of the bamboo wood unit into a finger-shaped tenon for finger-joint assembly;
(4) coating glue on partial or all side surfaces and finger tenon joint surfaces of the regular polygonal bamboo wood units, arranging the bamboo wood units in parallel by the edge-to-edge sides of the cross sections of the bamboo wood units, and longitudinally extending the bamboo wood units in a finger joint manner; forming assemblies with different sections and lengths according to use requirements;
(5) and (3) transversely and longitudinally pressurizing the assembly after gluing, and heating or cold-state curing to form the bamboo original-state multi-side recombined material.
After the manufacturing of the bamboo original state multi-party recombination material is finished, a deep processing step can be added after the step (5): namely, the length, the edge and the surface of the bamboo wood original state multi-side recombined material are processed to prepare the bamboo wood original state multi-side recombined material with certain specification and surface quality.
The processing of the length, the edge and the surface of the bamboo wood original state multi-side recombined material refers to the further processing of the recombined material, such as sawing, cutting edge and the like, and the surface treatment of the recombined material, such as planing, sanding, painting and the like.
In step (1), the bamboo sections are divided into at least one group, the cross section of each bamboo section in the same group is basically the same, and the average breast diameter error is within +/-15 mm.
The diameter difference of the two ends of the bamboo section is within +/-10 mm.
Therefore, the widths of the side surfaces of the processed regular polygonal bamboo units at two ends are basically equal, and longitudinal gaps of the combined original multi-recombined bamboo material at the smaller diameter part of the bamboo units can be avoided.
In addition, according to the requirement, the bamboo wood original state multi-side recombination material can be subjected to secondary recombination, namely secondary arrangement and combination are carried out in the direction of the cross section, and the cross section area is increased; in practice, only the secondary recombination from the original state multi-recombination material of the bamboo with small section to the original state multi-recombination material of the bamboo with large section is generally carried out. The length is not extended for secondary recombination, and because the recombined material is composed of a plurality of bamboo wood units, the extension finger joint is difficult to realize.
During assembly in the step (4), the bamboo unit finger joints are preferably arranged in a longitudinally staggered manner, so that the mechanical strength of the finished product is prevented from being influenced.
In the step (2), the outer surface of the bamboo section is milled into regular polygon, and the purpose is to obtain a non-strict regular polygon due to the existence of local circular arcs in order to obtain a bonding plane required in the mutual bonding and recombination of the bamboo units which are arranged in parallel.
The ratio of the side length L2 of the cross section side of the regular-polygonized bamboo wood unit to the side length L1 of the inscribed regular polygon of the circle with the same diameter is called the degree of polygonization.
In order to ensure that a sufficient bonding area exists and good bonding between the bamboo wood units is ensured, when regular polygons are milled, the degree of the polygons cannot be lower than 40%, and the optimal parameter of the degree of the polygons is 60% -80%. If the degree of polygonization is too large, more milling needs to be carried out on the wall thickness of the bamboo, the strength of the bamboo is reduced, and the utilization rate of the bamboo is also reduced; if the degree of polygonization is too small, the surface of the regular-polygonized bamboo unit side does not have a large enough bonding area, which affects the bonding strength.
In step (5), the pressure curing may be performed in a cold state (normal temperature) or under a heated condition. The curing conditions used may be determined by the type and properties of the adhesive used.
The adhesives used in the present invention may be UF (urea-formaldehyde resin glue), PF (phenol-formaldehyde resin glue), MDI (isocyanate glue) or other adhesives commonly used in the wood processing field.
The invention has the main innovation points that the defect of bamboo recombination of the damaged original hollow structure of the bamboo in the prior art is overcome, the original physiological structure of the bamboo is maintained, the unique structures of the bamboo, such as the hollow structure, the bamboo partition and the like, are fully utilized, the characteristics of strong bending resistance, compression resistance and shear resistance, excellent physical performance and the like of the bamboo pole are maintained to a greater extent, the original ecological characteristics of the bamboo are maintained, and the utilization rate of raw materials is improved. The natural bamboo is cylindrical, and due to the existence of bamboo joints and the ordered arrangement of bamboo fibers, the bamboo has strong wind resistance (namely strong shearing resistance and bending resistance) at a certain height in the transverse direction, and has strong tensile and compressive capabilities in the longitudinal direction. The invention fully utilizes the physical structural characteristic of the bamboo wood, realizes the transverse connection and longitudinal random extension recombination of the bamboo wood through the regular polygon of the outer surface and the finger tenon structure processing, fully exerts the natural mechanical property of the bamboo wood, and ensures that the original multi-side recombined material of the bamboo wood can be used for large-size materials. Therefore, the invention has the advantages that:
the invention aims at the physical structural characteristics of hollow bamboo and bamboo joints, the circular hollow bamboo is recombined and processed into a multi-side recombined material which is transversely polygonal, arranged side by side (honeycomb if hexagonal recombination is carried out), and longitudinally and randomly prolonged, the natural structure of the bamboo is maintained, and the recombined bamboo structural material with high strength, large length and large span can be manufactured.
The bamboo wood original state multi-side recombined material can not only replace wood as a structural beam material and a structural column material, improve the utilization rate of bamboo wood resources and save forest resources, but also replace certain structural materials such as concrete, steel and the like, and improve the self-life capability of the structural materials.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting, but rather are intended to cover all equivalent arrangements within the scope of the invention, as defined by the appended claims.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic view of bamboo sections obtained by sawing sections of bamboo materials with the same diameter selected according to needs in the section-fixing process;
fig. 3a and 3b are schematic views of 2 states of bamboo wood units obtained by milling the outer surface of the bamboo wood into regular hexagons in the surface milling process;
fig. 4a and 4b are schematic structural diagrams of milling one end and two ends of a bamboo wood unit into finger-shaped tenons in a finger-shaped tenon milling process respectively;
FIG. 5 is a schematic diagram of an arrangement and assembly of cross sections of a bamboo wood original state multi-side recombined material;
FIG. 6 is a schematic view of gluing the outer surface of the orthohexagonal bamboo unit and the finger tenon joint surface, and pressing, heating or cold forming;
FIG. 7 is a schematic structural diagram of bamboo original hexagonal recombination or secondary recombination on the basis of FIG. 6 to form a bamboo original hexagonal recombination material;
FIG. 8 is a schematic view illustrating the degree of polygonization;
fig. 9 is a schematic structural view of the bamboo original state multi-sided recombined material formed by matching and recombining regular octagonal bamboo units and regular quadrilateral bamboo units.
Detailed Description
Example 1:
the bamboo original state multi-directional recombination material provided by the embodiment comprises a plurality of bamboo units 10a with regular hexagons on the outer surfaces, wherein adhesive layers are coated on partial side planes or all side planes 13 of the bamboo units 10a, and the side surfaces of the bamboo units 10a are bonded together through the adhesive layers to realize transverse arbitrary expansion; other bamboo units are joggled at one end or both ends of the regular polygonal bamboo unit 10a so as to be arbitrarily extended in the longitudinal direction.
The average diameter at breast height error of a plurality of bamboo wood units 10a is within +/-15 mm, regular-hexagon bamboo wood units with uniform specifications on the outer surfaces are longitudinally joggled, adhesive layers are coated on partial side planes or all side planes 13, and the bamboo wood original-state hexagonal recombinant material with any length is formed by heating or cold bonding.
The process flow of the processing method is shown in figure 1.
Referring to fig. 1 to 7, bamboo materials with basically the same breast diameter are selected, the bamboo materials are segmented according to the diameter difference of the large end and the small end, the outer surfaces of the bamboo materials are processed into regular-hexagon bamboo material units with the same specification through surface milling, and finger tenons are milled at one end or both ends. Firstly, longitudinal joggling is carried out to form a single long material with a certain length (such as 6000mm), and then transverse assembly is carried out to form the original hexagonal recombined material of the bamboo material. The method comprises the following specific steps:
(1) firstly, the moso bamboo is sawed into bamboo sections 10 (shown in figure 2) with certain length, namely fixed sections, bamboo materials which are basically consistent in diameter, taper and wall thickness and are relatively straight are selected, the bamboo sections are fixed according to the diameter difference of +/-15 mm of the large end and the small end, and the bamboo sections 10 (shown in figure 2) with random length are sawed. Two principles are also followed in the fixed section, wherein firstly, the saw kerf is selected at the position other than the bamboo joint 15; secondly, the difference C of the diameters d 1 and d2 of the two ends 11 and 12 of the bamboo section 10 is +/-10 mm.
(2) The outer surface of the bamboo section is milled into a regular hexagon shape (see fig. 3a) with a certain size, so that the cross sections of the bamboo units are combined together according to a honeycomb parallel arrangement rule, when the outer surface of the bamboo unit 10a is milled into the regular hexagon, a part of original circular arcs 14 of the bamboo are more or less reserved on the cross sections, but not the strict regular hexagon; in actual processing, the larger end of the bamboo unit 10a may be a regular hexagon, and the smaller end may be a non-standard regular hexagon (see fig. 3b), or both ends of the bamboo segment may be non-standard regular hexagons.
In order to ensure that the sufficiently large side planes 13 are used for bonding the bamboo units, when milling the regular hexagons, the ratio of the side length L2 of the cross-section side of the regular hexagons to the side length L1 of the inscribed regular hexagons of the circle with the same diameter is called the degree of hexagonization (see fig. 8), and the degree of hexagonization in this embodiment is selected to be 70%, i.e., L2: L1 is 70%.
(3) Milling one end 101 or both ends 101, 102 of the bamboo units into finger-shaped tenons (see fig. 4a, 4b) allows for finger joint assembly of infinite length.
(4) The finger tenon joint surfaces of the regular hexagon bamboo units are glued, and the bamboo original state hexagonal recombined material can be extended to any required length in a finger joint mode. For example, several bamboo elements 10a of different lengths are referred to in the longitudinal direction as a single long section of a certain length. This example selects a single long product 16 of 6000 mm.
(5) Vertically pressurizing and heating or cold (normal temperature) solidifying the assembly of the glued bamboo units 10a to form a single 6000mm hexagonal long material 16; the adhesive can be selected from various conventional adhesives, such as UF (urea formaldehyde resin adhesive), PF (phenol formaldehyde resin adhesive), MDI (isocyanate adhesive) or other adhesives commonly used in the art. The bonding methods and conditions are also conventional.
(6) And recombining the single hexagonal long material according to the requirement to realize the required bamboo original hexagonal recombined material. The method comprises the following steps of gluing adjacent side surfaces of a plurality of single hexagonal long materials 16, arranging the adjacent side surfaces in a honeycomb shape according to the cross section of the single hexagonal long materials in parallel, and carrying out transverse pressurization, heating or cold curing to realize transverse recombination (see figures 5 and 6); if the single bamboo material is different in size at two ends, as shown in fig. 3b, the big ends 11 and the small ends 12 can be staggered when the bamboo material is transversely recombined (see fig. 5). In this way, the gaps 103 formed between the individual slub units by the remaining partial arcs can be minimized.
(7) The edges and the surfaces of the bamboo original-state multi-square restructuring material are processed by sawing, sanding, painting and the like, and the bamboo original-state multi-square restructuring material is sawed into a restructuring material 17 with a certain specification according to the requirement.
The secondary recombination can be carried out according to the needs, that is, several bamboo original hexagonal recombination materials 17 as shown in fig. 6 are bonded together by gluing on the side surface to form a bamboo original hexagonal recombination material with a larger cross section, or more hexagonal long materials 16 are bonded on the recombination material 17 as shown in fig. 6 to form a recombination material with a large cross section (see fig. 7).
In the embodiment, in the recombination, a plurality of bamboo wood units are firstly connected by fingers to form long wood, and then a plurality of long wood units are transversely recombined. In the case of recombination, it is also possible to recombine longitudinally and transversely simultaneously, see example 2.
Example 2:
referring to fig. 1 to 9, bamboo materials with the same breast diameter are selected, the bamboo materials are segmented according to the diameter difference of the large end and the small end as a fixed value, the outer surfaces of the bamboo materials are processed into regular-hexagon bamboo material units with the same specification through surface milling, and finger tenons are milled at one end or two ends. The cross sections of the bamboo are arranged in parallel according to a honeycomb shape, and are longitudinally joggled into any length to be processed into the bamboo original state multi-side recombined material. The method comprises the following specific steps:
(1) the same procedure as in step (1) of example 1.
(2) The same procedure as in step (2) of example 1.
(3) The same procedure as in step (3) of example 1.
(4) Gluing a plurality of gluing surfaces of the orthohexagonally-shaped bamboo wood units and finger tenon joint surfaces, and arranging the gluing surfaces and the finger tenon joint surfaces in parallel according to a honeycomb shape by the cross sections of the gluing surfaces and the finger tenon joint surfaces; meanwhile, the bamboo units are longitudinally arranged in a joggled manner, the joints of the bamboo units are arranged in a staggered manner as much as possible in the longitudinal direction, and the bamboo units can be formed into assemblies with different section specifications and different lengths according to requirements.
(5) And (3) simultaneously pressurizing the assembly subjected to glue coating vertically and laterally, and performing heating or cold state curing to form the bamboo original state hexagonal recombinant material.
(6) And performing secondary recombination on the original multi-way recombined material according to requirements to obtain a larger-size bamboo original-way hexagonal recombined material.
(7) The edges and the surfaces of the bamboo original-state multi-square recombined material are sanded, painted and the like, and the recombined material with a certain specification is sawed according to the requirement.
Example 3:
firstly, selecting bamboo materials with the same diameter to saw and fix sections. In this embodiment, the bamboo with the same diameter includes two groups of bamboo units with 2 specifications, one is a bamboo section with a larger diameter, and the other is a bamboo section with a smaller diameter, and the sections are determined according to the section determination principle described in embodiments 1 and 2.
Then, the bamboo sections with larger diameter reduction are milled into the regular octagonal bamboo unit 201, and the other bamboo sections with smaller diameter are milled into the regular quadrangular bamboo unit 202, wherein the side length of the cross section of the quadrangular bamboo unit 202 is correspondingly equal to the side length of the cross section of the regular octagonal bamboo unit 201. The 2 bamboo elements are milled with finger-shaped tenons at one or both ends, and then longitudinally reformed as described in step (4) of example 1, followed by or simultaneously with transverse reforming as shown in fig. 9. The other steps were the same as in examples 1 and 2.
The recombination has higher utilization rate to bamboo.
Compared with the large-diameter bamboo wood, the small-diameter bamboo wood (the diameter is less than or equal to 40mm) has larger wall thickness, can be subjected to quadrangular milling and can be used as an internal 'filling-in' material of the regular octagonal reconstituted wood. In addition, wood can also be used as small square timber with a filled space inside to form the wood and bamboo original multi-side recombined composite material.
For small-diameter bamboo wood, all the bamboo wood can be milled into a square shape for recombination.
When the regular quadrangle recombination is carried out, the side lengths of the bamboo units required by the assembly can be the same or different. When the side lengths of a plurality of types of regular quadrangle bamboo wood units are not equal, the side lengths are preferably in a multiple relation.
Further, the above-described rearrangement may be performed by using regular pentagonal or regular heptagonal bamboo units. When the pentagonal bamboo units are recombined, holes are reserved among the bamboo units on the cross section of the original-state pentagonal recombined bamboo material after the recombination. According to the use requirement, the holes can be filled with fillers such as wood units or bamboo units, and the holes can also be reserved.
The number of sides on the cross section of the bamboo unit is not arbitrary. If the number of sides is too small, for example, milling into a triangle is not desirable, because the bamboo walls may be damaged by penetration and weaken the natural structure; if the number of sides is too large, for example 10 sides or more, this is not preferable because the side edges are too short and the adhesive surface constituting the recombination is too small, the recombination bonding strength will be reduced.
Therefore, the number of the optimized bamboo wood unit regular polygon edges is 4-8.
Claims (10)
1. The bamboo original state multi-square recombination material is characterized in that: the bamboo joint structure is characterized by comprising a plurality of bamboo units, wherein the bamboo units are original bamboo sections which are hollow and provided with bamboo partitions, the outer contour of the cross section is in a regular polygon shape, a joggle structure is arranged at one end or two ends of each bamboo unit, a binder layer is coated on part of side planes or all side planes on the outer surfaces of the bamboo units, and the side faces of the bamboo units are bonded and fixedly connected together through the binder layer to form a transverse edge-to-edge arrangement structure so as to realize any transverse extension; and a binding agent layer is coated on the joggle joint surfaces of the bamboo wood units, and the plurality of joggles of the bamboo wood units are fixedly connected together through the binding agent layer, so that the longitudinal arbitrary extension is realized.
2. The bamboo as-grown multi-square reconstituted material of claim 1, wherein: the number of the outer contour side edges of the cross section of the regular polygonal bamboo wood unit is 4-8.
3. The bamboo wood as-formed multi-sided recombination material of claim 2, wherein: the number of the side edges of the outer contour of the cross section of each bamboo unit is 6, and the outer contour of the cross section of each bamboo unit is in a regular hexagon shape; the cross sections of the adhesive layers are arranged in parallel in a honeycomb shape, and the adhesive layers are bonded to form the cross section which is arbitrarily expanded; the regular-hexagon bamboo wood units are longitudinally joggled and bonded through the joggled structure and the bonding agent layer to form random extension of length; or,
the bamboo units comprise a group of regular octagonal bamboo units and a group of regular quadrangular bamboo units, the side length of the outer contour of the cross section of each regular quadrangular bamboo unit is equal to or multiplied by the side length of the outer contour of the cross section of each regular octagonal bamboo unit, so that the regular quadrangular bamboo units are placed in the pores of the quadrangular cross section after the regular octagonal bamboo units are bonded; or,
the bamboo wood units comprise two groups of bamboo wood units which are in regular quadrangle, and the side lengths of the bamboo wood units are different.
4. The bamboo wood original state multi-party restructuring material according to claim 1 or 2, characterized in that: milling one end or two ends of the bamboo wood unit into a finger-shaped tenon to realize longitudinal finger-shaped tenon joint extension; and/or the joints of the longitudinal joggling of the bamboo wood units are staggered.
5. The bamboo wood original state multi-party restructuring material according to claim 1 or 2, characterized in that: the bamboo units have basically the same cross section and the same number of side edges; or,
the bamboo units comprise two or more groups of bamboo units, the same group of bamboo units have the same cross section size and edge number, different groups of bamboo units have different cross section sizes and/or edge numbers, the same group of bamboo units form a longitudinal extension structure through a joggle structure, and the same group of bamboo units or different groups of bamboo units form a transverse extension structure through transverse bonding of the outer side planes; or,
the bamboo wood units are bamboo wood with basically the same cross section and the same number of side edges, and in addition, the bamboo wood units also comprise a group of wood units with the cross sections different from the cross sections of the bamboo wood units, and the cross sections of the wood units are matched with gaps formed by the mutual recombination of the bamboo wood units and are filled in the gaps.
6. The bamboo wood original state multi-party restructuring material according to claim 1 or 2, characterized in that: the ratio of the side length L2 of the cross section side of the regular-polygonized bamboo wood unit to the side length L1 of the inscribed regular polygon with the same diameter is called polytropic degree, and the polytropic degree L2/L1 is more than or equal to 40%.
7. A method for manufacturing an original bamboo multi-square recombined material comprises the following steps:
A. selecting bamboo materials with the same diameter to be sawn into sections, and sawing the bamboo materials into bamboo sections; section fixing principle: 1) performing segmentation according to the difference of the diameters of the large end and the small end as a certain value; 2) the saw kerf is selected at the position of the non-bamboo joint;
B. milling the outer side surface of the bamboo section into a regular polygon to form a bamboo unit;
C. milling one end or two ends of the bamboo wood unit into a finger-shaped tenon for finger joint assembly;
D. gluing partial side surfaces or all side surfaces, namely gluing surfaces and finger tenon joint surfaces, of the regular polygonal bamboo wood units, and arranging the bamboo wood units in parallel from side to side of the cross section of the bamboo wood units; longitudinally connecting and discharging the bamboo wood units in a finger manner, and forming assemblies with different cross sections and different lengths as required;
E. and (3) transversely and longitudinally pressurizing the assembly after gluing, and heating or cold-state curing to form the bamboo original-state multi-party recombined material.
8. The method for manufacturing the bamboo original state polytropic recombined material as claimed in claim 7, wherein the method comprises the following steps: each bamboo segment is divided into at least one group, and the average diameter error of the bamboo segments in the same group is within +/-15 mm.
9. The method for manufacturing the bamboo original state polytropic recombined material as claimed in claim 7, wherein the method comprises the following steps: the diameter difference of the two ends of the bamboo section is within +/-10 mm.
10. The method for manufacturing the bamboo original state polytropic recombined material as claimed in claim 7, wherein the method comprises the following steps: further comprising the step of F: processing the length, the edge and the surface of the recombined material into a bamboo original state multi-way recombined material with a certain specification; the treatment of the length, the edge and the surface of the recombined bamboo wood is as follows: sawing the length, trimming the edge, and planing, sanding or painting the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101790017A CN101323124B (en) | 2007-12-07 | 2007-12-07 | Bamboo wood original state regular polygon recombined material and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101790017A CN101323124B (en) | 2007-12-07 | 2007-12-07 | Bamboo wood original state regular polygon recombined material and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101323124A CN101323124A (en) | 2008-12-17 |
| CN101323124B true CN101323124B (en) | 2010-08-11 |
Family
ID=40186904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101790017A Expired - Fee Related CN101323124B (en) | 2007-12-07 | 2007-12-07 | Bamboo wood original state regular polygon recombined material and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101323124B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885199B (en) * | 2009-05-14 | 2014-07-02 | 国家***北京林业机械研究所 | Method for manufacturing bamboo original-state multidirectional recombined pre-stress structural material |
| CN101532604A (en) * | 2009-04-29 | 2009-09-16 | 徐林波 | A method for using tube combination to manufacture various products and use thereof |
| CN102189570A (en) * | 2010-03-04 | 2011-09-21 | 中国林业科学研究院林业科技信息研究所 | Ladder-shaped bamboo original state recombined material and manufacturing method thereof |
| JP5364216B2 (en) * | 2011-02-28 | 2013-12-11 | 光洋産業株式会社 | Bamboo board, composite board and method for producing them |
| CN102555221A (en) * | 2012-01-16 | 2012-07-11 | 苏州芳磊蜂窝复合材料有限公司 | Honeycomb manufacturing method |
| CN103056934B (en) * | 2013-01-08 | 2015-01-21 | 国家***北京林业机械研究所 | All-bamboo tapered-joint extension material and manufacturing method thereof |
| CN103600517B (en) * | 2013-11-27 | 2016-09-07 | 苏州芳磊蜂窝复合材料有限公司 | A kind of preparation method of the honeycomb core with nano material specific performance |
| CN104128981A (en) * | 2014-06-06 | 2014-11-05 | 遂川县洪林木业有限公司 | Cellular-structure laminated wood and production method thereof |
| CN105150297A (en) * | 2015-09-25 | 2015-12-16 | 广西贺州市灵峰木业科技有限公司 | Novel wooden board and processing method thereof |
| CN105171855B (en) * | 2015-09-25 | 2017-12-22 | 广西贺州市灵峰木业科技有限公司 | A kind of solid wooden board material and its processing method |
| CN107214781B (en) * | 2017-05-31 | 2023-06-02 | 广西南宁侨盛木业有限责任公司 | Thin strip type solid wood composite integrated material |
| CN107748827B (en) * | 2017-11-09 | 2021-09-03 | 广东工业大学 | Hollow cylindrical part machining method, system, equipment and storage medium |
| CN111098369A (en) * | 2019-12-31 | 2020-05-05 | 江西兴创木业有限责任公司 | Large-section laminated wood manufactured by using small-diameter wood and manufacturing method thereof |
| CN111152312A (en) * | 2019-12-31 | 2020-05-15 | 江西兴创木业有限责任公司 | Lengthening process of large-section integrated wood |
| CN110936446B (en) * | 2019-12-31 | 2022-07-12 | 江西兴创木业有限责任公司 | Wood core lengthening and assembling process |
| CN111098367B8 (en) * | 2019-12-31 | 2021-12-21 | 江西兴创木业有限责任公司 | Wood core lengthening process |
| CN112454591B (en) * | 2020-11-25 | 2022-06-14 | 烟台博海木工机械有限公司 | Assembly for bamboo-wood composite cylinder and processing method of bamboo-wood composite cylinder |
| CN114633333A (en) * | 2022-02-08 | 2022-06-17 | 泰州市龙洋木业有限公司 | Large-section hexagonal prism laminated wood pressurizing and gluing process |
| CN115625762B (en) * | 2022-11-14 | 2023-08-11 | 千年舟新材科技集团股份有限公司 | Manufacturing method and structure of light high-strength plate |
-
2007
- 2007-12-07 CN CN2007101790017A patent/CN101323124B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101323124A (en) | 2008-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101323124B (en) | Bamboo wood original state regular polygon recombined material and method for producing the same | |
| CN201198158Y (en) | Bamboo wood original state polygonal recombinant material | |
| AU2011202472B2 (en) | Cross laminated strand product | |
| CN1970254B (en) | Curved bamboo material original state regroup material and its making method | |
| CN201254784Y (en) | Bamboo asis multi-component recombinant prestressed beam | |
| CN1106249C (en) | Laminated structure wood products and method | |
| CN102189570A (en) | Ladder-shaped bamboo original state recombined material and manufacturing method thereof | |
| JP6509214B2 (en) | Core layer with wood elements, in particular wood elements having a wave-like structure | |
| US20110293880A1 (en) | Bamboo artificial board and producing method thereof | |
| CN102310450A (en) | Bamboo oriented shaving board and manufacturing method thereof | |
| CN103249532A (en) | A bamboo board and a composite board and fabrication method for same | |
| US20190153729A1 (en) | Lightweight construction board containing wave-like elements | |
| CN101277817A (en) | Wood panel containing inner culm flakes | |
| CN101885199B (en) | Method for manufacturing bamboo original-state multidirectional recombined pre-stress structural material | |
| CA2723851C (en) | Shaped articles with balsa wood and method of producing them | |
| US20190001609A1 (en) | Web, sandwich plate, sandwich block and methods for producing same | |
| CN105751342A (en) | Plate material, solid wood composite floor base material and column material made from branch materials and round rod materials, and manufacturing method | |
| CN1250395C (en) | Bamboo section material for building construction and its manufacturing method | |
| CN102233600A (en) | Wood shaped like inverted V or Z | |
| JP2014083774A (en) | Laminated lumber utilizing bamboo | |
| CN201816108U (en) | Original state recombination sectional material of trapezoid bamboo wood | |
| WO2010020131A1 (en) | A pre-stress beam provided in recombined synusiologic bamboo and a manufacturing method thereof | |
| DE19921037C2 (en) | Quick-build and formwork panel and method for preparing one | |
| CN203282556U (en) | Hollow chamfered joint recombination bamboo structure wood | |
| CN111037671A (en) | Square material laminated wood, laminated wood splicing unit and processing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20191207 |