CN202702348U - Wood and bamboo expanded thick veneer aggregated laminated material - Google Patents
Wood and bamboo expanded thick veneer aggregated laminated material Download PDFInfo
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- CN202702348U CN202702348U CN 201220371237 CN201220371237U CN202702348U CN 202702348 U CN202702348 U CN 202702348U CN 201220371237 CN201220371237 CN 201220371237 CN 201220371237 U CN201220371237 U CN 201220371237U CN 202702348 U CN202702348 U CN 202702348U
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Abstract
The utility model discloses a wood and bamboo expanded thick veneer aggregated laminated material prepared from fast growing wood and moso bamboo, and a preparation method for the material. The wood and bamboo expanded thick veneer aggregated laminated material comprises at least three and odd layers of wood laminated veneers and bamboo expanded thick veneers which are alternately superposed in a layered mode, bonded through an adhesive and pressed into an integrated body, wherein the surface layer and the bottom layer of the integrated body are the wood laminated veneers; and the veneers are longitudinally arranged completely along the grain or arranged in a longitudinally and transversely staggered mode. The bamboo expanded thick veneers are formed by splicing trapezoid expanded bamboo board unit bodies which are prepared by expanding the original arc bamboo blocks and have equal thickness and unequal width along the grain in a wide-to-narrow arrangement mode. The production process is simplified, production cost is reduced, the raw material consumption of a unit product is controlled, the performance advantage of a wood-bamboo material is fully exerted, the mechanical property of the wood-bamboo composite material is improved, and the application range of the wood-bamboo composite material is expanded.
Description
Technical field
The utility model belongs to wood, the artificial board manufacturing technology field in the bamboo processing industry, is specifically related to a kind ofly launch thick veneer gathering laminated timber take fast growing wood and mao bamboon as raw-material timber and bamboo wood.
Background technology
Along with forest resource decrease in the world wide, people begin the research work take bamboo wood and artificial forest wood as the bamboo-wood composite material of primary raw material.Wood, bamboo is compound can reasonably bring into play bamboo wood and timber good characteristic separately, obtains both to save timber resources, guarantees again the double effects of intensity and the presentation quality of material.Wood bamboo composite is compared with pure artificial bamboo board, has more the designability of structure and performance, and from the effect of utilizing of bamboo wood, the former also has more superiority than the latter.Therefore, as structural timber, having a extensive future of wood, bamboo aggregate material also opened up new approach for industrialized utilization and the deep processing of artificial forest fast growing wood and bamboo wood, widened range of application.And the existing bamboo processing process that realizes the bamboo and wood composite of suitability for industrialized production, all be by the bamboo cane of bamboo processing certain specification, thin bamboo strips used for weaving, be rolled into bamboo fiber bundle, these method loss bamboo woods raw-material 50%, also heavy losses the former mechanical characteristic of bamboo wood, and manufacturing procedure is many, equipment investment is large, expenses of labour consumes greatly, utilization rate of raw materials is low, energy consumption is high, processing cost is high, the material mechanical performance of preparation can not get performance, for this situation, be necessary to be further improved.
Veneer lamination plate LVL launches thick veneer by rotary-cut, bad with rift grain mode group, end mitered, overlap joint or docking, then the high-performance, high added value, the high-strength structure material that form through the compacting of the operations such as gluing, hot pressing, its length can not be subjected to the restriction of the mode of production, have the advantages that engineering property is even, intensity is high and specification is flexible and changeable, it is better than entity material and laminated wood.Be specially adapted to the timber structure of large span, it is thicker that the LVL rotary-cut launches thick veneer thickness, general all at 2～10mm, veneer is that the rift grain lamination is bonding, be that to replace sawn timber be the product of target, what emphasize is the reinforcement of the vertical mechanical property of product, and outstanding is the anisotropy of timber.Glued board then is the orthogonal principle assembly of adjacent layer veneer, is to the anisotropic transformation of natural material, and what emphasize is isotropism.LVL adopts fast-growing small dimension wood or forest zone thinnings production, and sufficient raw meets national industrial policies.Particularly since China implements wildwood protected project, various places are taked the measure of closing hillsides to facilitate afforestation in succession, make China's timber imbalance between supply and demand more outstanding.And laminated veneer lumber prolongs living meaning and is the large usefulness of small wood, take full advantage of artificial fast-growing woods and in, the small diameter grade log, produce high value added product, performance is better than solid wood, is specially adapted to the building structural element of large span.
As everyone knows, the diameter to taper and wall thickness all reduce bamboo gradually from root textural, and the difficult veneer rotary-cut technology of using obtains the thick veneer of bamboo matter.But utilize original-state bamboo wood expansion milling and assembly connection technology but can obtain complete bamboo wood and launch thick veneer.In recent years to launch the logging of restructuring layer be to launch bamboo wood that thick veneer pieces together connection as cell cube take original-state bamboo wood to the bamboo wood of exploitation, the former artificial panel products of a kind of Novel bamboo that makes by series of processes such as gluing, assembly, hot pressing.During manufacturing, the thick veneer technique of this system had both been eliminated the cumbersome craft of bamboo mat plywood and had been woven a mat, and had also avoided softening processing and the operation such as pressurization flattening etc. of bamboo plywood complexity, simplified and had innovated the thick veneer technique of manufacturing bamboo wood.The maximum characteristics of its innovation according to the taper degree feature of mao bamboon and the characteristics of bamboo body thickness gradual change, are worked out original-state bamboo wood and are launched processing technology, reach the maximum solid thing storage of preserving bamboo wood, take full advantage of bamboo wood, keep the former mechanical property of bamboo wood.
Wood laminated timber and bamboo cord wood also respectively have their weak point.Bamboo cord wood has higher physical and mechanical property, but density is higher, and it is poor to hold nail property, and transversary intensity is lower, and vertically easily breaks; Although wood laminated timber machinability is better, intensity is lower.Therefore, range of application and the application scale of this two classes new material have been limited, the wood bamboo is launched veneer and assembles the two-fold advantage that laminated timber has wooden laminated timber and bamboo cord wood concurrently, has both had the good physical and mechanical property of bamboo cord wood, and longitudinal strength is high, good stability of the dimension, do not ftracture, material is even, and length, density can be controlled arbitrarily as required, have again the better machinability of wooden lamination, can carry out easily the processing such as mortise, perforating, nail nail to it and process.Its generation will be alleviated the problem of China's timber resources anxiety effectively, enlarge the industrial utilization approach of the artificial timber of fast-growing and bamboo wood, greatly promote the surcharge of fast growing wood and bamboo wood.It will be widely used in the fields such as floor, furniture, deck plate, compartment and container floor, engineering construction structural wood.
Summary of the invention
The purpose of this utility model is for existing wooden laminated timber and bamboo cord wood and the wooden compound laminated veneer lumber of bamboo (curtain) deficiency separately, and existing bamboo wood utilization rate of raw materials is on the low side and the problem such as existing defective workmanship, a kind of maximum using mao bamboon physical objects amount is provided, reduce cutting output, preserve the former mechanical property of mao bamboon bamboo wood, Effective Raise bamboo processing utilization rate more, improve the mechanical property of wooden bamboo composite, enlarge and use category, simplify production technology, reduce production costs, the control consumption of raw materials per unit of product, timber and the bamboo wood of giving full play to wooden bamboo wood material performance advantage launch thick veneer gathering laminated timber.
The purpose of this utility model realizes by the following technical solutions: this timber and bamboo wood launch thick veneer and assemble laminated timber, it comprises that timber laminated veneer and the bamboo wood of at least three layers odd-level launch thick veneer alternatively layered stack, and becoming an integrate body by the adhesive adhering and pressing, its surface layer and bottom are the timber laminated veneer; Every layer of veneer is whole rift grain longitudinal arrangement forms or criss-cross arrangement form.
More particularly, described timber and bamboo wood launch thick veneer and assemble laminated timber and launch thick veneer alternatively layered stack by the timber laminated veneer of three layers or five layers or seven layers or nine layers and bamboo wood and form.
It is that expansion bamboo clappers cell cube rift grain jigsaw by the planar trapezoidal shape that equates along the bamboo wood radial thickness, do not wait along the vertical width of bamboo wood forms that described bamboo wood launches thick veneer, its adjacent two wide end and narrow ends that launch the bamboo clappers cell cube are staggered, and its adjacent two bamboo strip and yellow bamboo faces that launch the bamboo clappers cell cube are staggered up and down; Described bamboo wood launches thick veneer by mitered or overlaps the veneer Lengthwise joint.
It is 15 ~ 36mm that timber of the present utility model and bamboo wood launch thick veneer gathering laminated timber thickness, and length 1200 ~ 2400mm, width are 600 ~ 1200mm; Timber lamination veneer thickness is 2 ~ 3mm, and it is 5 ~ 8mm that bamboo wood launches thick veneer thickness.
Timber of the present utility model and bamboo wood launch thick veneer and assemble laminated timber, are to use China relatively sufficient resource fast growing wood and the prepared composite of bamboo wood.Employing original-state bamboo wood roller cuts open the extension tech technology in the utility model technique, produces to have former bamboo tension resistance to compression mechanical property, uniform thickness planar trapezoidal shape, the maximum expansion bamboo clappers cell cube of reservation bamboo wood physical objects bamboo fibre amount.Compare traditional handicraft, the bamboo wood interest rate has improved 40%, and the bamboo wood interest rate reaches 85%.Therefore, can greatly improve utilization rate and the range of application of timber and bamboo wood, it is not enough effectively to alleviate China's timber resources.Timber and bamboo wood launch thick veneer to be assembled the double event of laminated timber and has brought into play separately advantage wooden, bamboo wood, the anisotropy and the vertical strong feature of mechanical property that have kept material, strengthened the physical characteristic of horizontal tension, close structure, even density, internal stress is little, and is not yielding, dimensional stability, usability, secondary workability are good.Energy extensive use architectural decoration, Furniture panel and container, railway carriage, flooring board, building element sheet material.
By detecting, timber of the present utility model and bamboo wood launch the elastic modelling quantity (MOE) of thick veneer gathering laminated timber in 9.16～18.75GPa scope, average out to 15.22GPa; MOR (MOR) in 86.11～185.34GPa scope, average out to 130.31MPa; Thickness swelling rate (TS) average out to 2.41%.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment ortho states arc bamboo piece.
Fig. 2 is the structural representation that the utility model embodiment launches the bamboo clappers cell cube.
Fig. 3 is the structural representation that the utility model embodiment bamboo wood launches thick veneer.
Fig. 4 is that 3 layers of timber of the utility model embodiment and bamboo wood launch the structural representation that thick veneer is assembled laminated timber.
Fig. 5 is that 5 layers of timber of the utility model embodiment and bamboo wood launch the structural representation that thick veneer is assembled laminated timber.
Fig. 6 is that 7 layers of timber of the utility model embodiment and bamboo wood launch the structural representation that thick veneer is assembled laminated timber.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Referring to Fig. 4, Fig. 5 and Fig. 6, the timber of present embodiment and bamboo wood launch thick veneer and assemble laminated timber, launch thick veneer 2 alternatively layereds stack by timber laminated veneer 1 and the bamboo wood of at least three layers odd-levels, and become an integrate body by the adhesive adhering and pressing.Shown in Figure 4 be by two-layer timber laminated veneer 1 and one deck bamboo wood launch thick veneer 2 totally three layers of veneer alternately be formed by stacking, shown in Figure 5 be by three layers of timber laminated veneer 1 and two layers of bamboo wood launch thick veneer 2 totally five layers of veneer alternately be formed by stacking, shown in Figure 6 be by four layers of timber laminated veneer 1 and three layers of bamboo wood launch thick veneer 2 totally seven layers of veneer alternately be formed by stacking.As seen from the figure, its surface layer and bottom are timber laminated veneer 1, and every layer of veneer is whole rift grain longitudinal arrangement forms.
Referring to Fig. 3, it is the structural representation that the present embodiment bamboo wood launches thick veneer 2.As can be seen from Fig. 3, it is that expansion bamboo clappers cell cube 3 rift grain jigsaw by the planar trapezoidal shape that equates along the bamboo wood radial thickness, do not wait along the vertical width of bamboo wood form that bamboo wood launches thick veneer 2, its adjacent two wide end and narrow ends that launch bamboo clappers cell cube 3 are staggered, and its adjacent two bamboo strip and yellow bamboo faces that launch bamboo clappers cell cube 3 are staggered up and down.Referring to Fig. 1 and Fig. 2, the ortho states arc bamboo piece of the utility model embodiment and the structural representation that launches bamboo clappers cell cube 3, launching bamboo clappers cell cube 3 is veneers that the expansion of ortho states arc bamboo piece is made, the thickness that launches bamboo clappers cell cube 3 is consistent, and width is gradual change, one head breadth other end is narrow, has kept the natural width after mao bamboon is analysed.
The thickness that timber of the present utility model and bamboo wood launch thick veneer gathering laminated timber is 15～36mm, and length is 1200～2400mm, and width is 600～1200mm; The thickness of timber laminated veneer is 2～3mm, and the thickness that bamboo wood launches thick veneer is 5～8mm.Launch the thick veneer gathering number of plies and mode by adjusting timber laminated veneer and bamboo wood, can obtain the different-thickness size, the timber of different physical and mechanical properties and bamboo wood launch veneer and assemble the lamination section product.
Preparation technology's detailed process that the utility model timber and bamboo wood launch thick veneer gathering laminated timber is as follows:
One, timber laminated veneer: by the timber conventional machining method thick veneer of rotary-cut laminated timber or purchase the thick veneer of timber, and be dried in the moisture content 10%.
Two, bamboo wood launches thick veneer:
(1) selects bamboo wood: with 4 years bamboo above mao bamboons in age;
(2) cut out material: the thick bamboo tube that mao bamboon is sawn into specific length;
(3) vertical profile thick bamboo tube: thick bamboo tube is vertically cutd open into two arc bamboo pieces, as shown in Figure 1;
(4) the arc bamboo piece is processed into the uniform thickness planar trapezoidal with " the thin roller of original state bamboo wood multistage dense cuts open and launches milling equipment " and launches the bamboo clappers cell cube.As shown in Figure 2, the width that launches the bamboo clappers cell cube is the naturally wide of arc bamboo piece flattening, a narrow head breadth, and the plane sees it is trapezoidal.Then, divide thick bamboo tube to tie into little bundle.
(5) the previous step gained is launched the soft plasticizing heat treatment of bamboo clappers cell cube high temperature, and be dried in the moisture content 10%.
(6) dried expansion bamboo clappers cell cube expanded (returning charcoal) is processed.
(7) will launch bamboo clappers cell cube dipping or coating resin glue, resin glue adopts environment protection modification phenolic resin glue or Lauxite.
(8) the expansion bamboo clappers cell cube of impregnating resin glue is dry, making moisture content is 12% ± 2.
(9) piece together the connection bamboo wood and launch thick veneer: will launch the vertical rift grain of bamboo clappers cell cube and arrange, the narrow end that launches the bamboo clappers cell cube matches mutually handover with wide end and puts, bamboo strip of plane layer, a yellow bamboo face handover are arranged, the adjacent both sides of bamboo are close to, laterally each veneer is pieced together connection with many binder removals line or adhesive tape on the face, form whole change bamboo wood and launch thick veneer, as shown in Figure 3.
Three, timber laminated veneer, bamboo wood launch thick veneer layering row plate assembly: timber laminated veneer, bamboo wood after the above-mentioned processing are launched thick veneer, pressing the odd number level distributes, wood, bamboo rift grain are arranged, one deck timber laminated veneer, one deck bamboo wood launches thick veneer handover and distributes, surface layer and bottom are the timber laminated veneer, such as Fig. 4, Fig. 5, assemble pattern shown in Figure 6.
Launch thick veneer with bamboo wood and assemble laminated timber if make overlength timber, timber laminated veneer, bamboo wood can be launched thick veneer and carry out mitered or overlap veneer lengthening, it is bad then to arrange as stated above the plate group, the hot repressing moulding.
Four, hot-forming: adopt the environment protection modification phenolic resin glue hot-forming, hot pressing temperature is 130 ~ 150 ℃, and normal pressure is 4.5Mpa ~ 5Mpa, and the time is 1.0mm/min.
Five, cutting: profiled sheeting is carried out deburring, and the specification material is processed in flush processing.
Claims (4)
1. a timber and bamboo wood launch thick veneer and assemble laminated timber, it is characterized in that: it comprises that timber laminated veneer and the bamboo wood of at least three layers odd-level launch thick veneer alternatively layered stack, and becoming an integrate body by the adhesive adhering and pressing, its surface layer and bottom are the timber laminated veneer; Every layer of veneer is whole rift grain longitudinal arrangement forms or criss-cross arrangement form.
2. timber according to claim 1 and bamboo wood launch thick veneer and assemble laminated timber, it is characterized in that: it launches thick veneer alternatively layered stack by the timber laminated veneer of three layers or five layers or seven layers or nine layers and bamboo wood and forms.
3. timber according to claim 1 and 2 and bamboo wood launch thick veneer gathering laminated timber, it is characterized in that: it is that expansion bamboo clappers cell cube rift grain jigsaw by the planar trapezoidal shape that equates along the bamboo wood radial thickness, do not wait along the vertical width of bamboo wood forms that described bamboo wood launches thick veneer, its adjacent two wide end and narrow ends that launch the bamboo clappers cell cube are staggered, and its adjacent two bamboo strip and yellow bamboo faces that launch the bamboo clappers cell cube are staggered up and down; Described bamboo wood launches thick veneer by mitered or overlaps the veneer Lengthwise joint.
4. timber according to claim 3 and bamboo wood launch thick veneer gathering laminated timber, it is characterized in that: it is 15 ~ 36mm that timber and bamboo wood launch thick veneer gathering laminated timber thickness, and length 1200 ~ 2400mm, width are 600 ~ 1200mm; Timber lamination veneer thickness is 2 ~ 3mm, and it is 5 ~ 8mm that bamboo wood launches thick veneer thickness.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220371237 CN202702348U (en) | 2012-07-30 | 2012-07-30 | Wood and bamboo expanded thick veneer aggregated laminated material |
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| CN 201220371237 CN202702348U (en) | 2012-07-30 | 2012-07-30 | Wood and bamboo expanded thick veneer aggregated laminated material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765111A (en) * | 2012-07-30 | 2012-11-07 | 刘佐财 | Wood and bamboo-unfolded thick veneer collection laminated material and preparation method thereof |
| CN105196368A (en) * | 2015-08-28 | 2015-12-30 | 国家林业局竹子研究开发中心 | Manufacturing method of bamboo-wood composite laminated timber |
| CN107139278A (en) * | 2017-07-07 | 2017-09-08 | 北京林业大学 | A kind of Bamboo veneer is enhanced to be used to strengthen the fast growing wood laminated veneer lumber of joinery and its construction |
| CN107662256A (en) * | 2017-09-18 | 2018-02-06 | 浙江洪利竹木业有限公司 | Bamboo board and its processing method |
| CN108656248A (en) * | 2018-05-14 | 2018-10-16 | 福建和其祖林业科技有限公司 | A kind of high ratio of strength to weight composite structural artificial plate and its preparation method and application |
-
2012
- 2012-07-30 CN CN 201220371237 patent/CN202702348U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765111A (en) * | 2012-07-30 | 2012-11-07 | 刘佐财 | Wood and bamboo-unfolded thick veneer collection laminated material and preparation method thereof |
| CN105196368A (en) * | 2015-08-28 | 2015-12-30 | 国家林业局竹子研究开发中心 | Manufacturing method of bamboo-wood composite laminated timber |
| CN107139278A (en) * | 2017-07-07 | 2017-09-08 | 北京林业大学 | A kind of Bamboo veneer is enhanced to be used to strengthen the fast growing wood laminated veneer lumber of joinery and its construction |
| CN107662256A (en) * | 2017-09-18 | 2018-02-06 | 浙江洪利竹木业有限公司 | Bamboo board and its processing method |
| CN108656248A (en) * | 2018-05-14 | 2018-10-16 | 福建和其祖林业科技有限公司 | A kind of high ratio of strength to weight composite structural artificial plate and its preparation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YIYANG RANZHE BAMBOO CO., LTD. Free format text: FORMER OWNER: LIU ZUOCAI Effective date: 20150421 Free format text: FORMER OWNER: HE HEGAO Effective date: 20150421 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Shuguang Inventor after: He Hegao Inventor after: Liu Zuocai Inventor before: He Hegao Inventor before: Liu Zuocai |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 411100 XIANGTAN, HUNAN PROVINCE TO: 413000 YIYANG, HUNAN PROVINCE Free format text: CORRECT: INVENTOR; FROM: HE HEGAO LIU ZUOCAI TO: HE SHUGUANG HE HEGAO LIU ZUOCAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150421 Address after: 413000, tiger shaped mountain, Xinqiao Town, Ziyang District, Hunan, Yiyang, two Patentee after: Yiyang ran bamboo and Wood Co.,Ltd. Address before: 411100, happy road, North Second Ring Road, Yuhu District, Hunan, Xiangtan, 18 Patentee before: Liu Zuocai Patentee before: He Hegao |
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| 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: 20130130 Termination date: 20210730 |