CN101342714B - Processing method for homogeneous and natural texture-forming bamboo plywood - Google Patents
Processing method for homogeneous and natural texture-forming bamboo plywood Download PDFInfo
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- CN101342714B CN101342714B CN2008100457986A CN200810045798A CN101342714B CN 101342714 B CN101342714 B CN 101342714B CN 2008100457986 A CN2008100457986 A CN 2008100457986A CN 200810045798 A CN200810045798 A CN 200810045798A CN 101342714 B CN101342714 B CN 101342714B
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- curtain splint
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- bamboo curtain
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Abstract
The invention relates to method for processing bamboo plywood which is homogeneous and forms natural texture; the processing method solves the disadvantages of low productivity, bad levelness of the product surface, uneven product intensity, easy deformation, low strength and narrow application field with the present method. The method includes the following steps that saw bamboo into tubes of proper length and cleave the tubes into slices of proper width and then remove the layers of green color and yellow color; cleave the bamboo slices into thin strips of proper thickness and weave the strips in parallel with wire to form a bamboo curtain and the thickness difference of strips used for the same curtain should be within 1mm; dry and size the curtain and then dry for the second time; pile the curtain on the board of a hot-press layer by layer to form plate blank; the included angle of two neighboring layers is acute or right one and the surface layer or/and the bottom layer consist(s) of one to four bamboo curtains with included angles of zero degree between all strips in the pattern of one to four layers; the plate blank is hot pressed and trimmed to obtain the homogeneous bamboo plywood.
Description
Technical field:
The present invention is relevant with the production method of construction material.
Background technology:
The processing method of traditional bamboo plywood is by the product processing length requirement section of being sawn into bamboo wood, thickness according to every section is divided into bamboo chip with wafer separator, go green grass or young crops to remove Huang bamboo chip, split the thin bamboo strip and be divided into which floor bamboo chip, to put on the heating platen by same direction behind the layering bamboo chip impregnation, form the square stock semifinished product through hot-press solidifying finalize the design the bamboo wood plate.Because bamboo chip thickness has difference, shape differs, and puts into inner membrance and arranges in a jumble, and can not accomplish neatly influences the uniformity and the production efficiency of the density of blank.Because bamboo fibre is arranged to a direction, and density unevenness, bamboo plywood significantly descends in other direction intensity at a direction intensity height, can only use as the common buildings material, and its surface irregularity, the easy aliquation in sanding rear surface.
Summary of the invention:
It is even to the purpose of this invention is to provide a kind of quality, and each is to all having good physical and mechanical property, and surface smoothness is good, not yielding, be convenient to carry out surperficial secondary operations, surface aesthetic, the production efficiency height, cost is low, the processing method of the homogeneous bamboo plywood of good product quality.
The present invention is achieved in that
Homogeneous bamboo plywood processing method of the present invention comprises the steps:
(1) bamboo wood is sawn into the thick bamboo tube of Len req, thick bamboo tube is split into the bamboo chip of required width, bamboo chip is removed blue or green layer and yellow layer,
(2) bamboo chip is split into the thin bamboo strip of desired thickness,
(3) thin bamboo strip is worked out the parallel bamboo curtain splint of sheet in groups with line, the used thin bamboo strip thickness difference of same bamboo curtain splint is at ± 2mm,
(4) bamboo curtain splint is dried, is gone up secondary drying,
(5) bamboo curtain splint is overlayed layer by layer on the plate of hot press and form slab, the group sheet of adjacent two layers bamboo curtain splint acutangulates or the right angle angle, the top layer is or/and bottom is that 1-4 zero bamboo curtain splints become 1-4 layers of formation by all group sheet angles, perhaps constitute by 1-4 layers of wooden skin, the wood skin is cut into through rotary-cut or wound by wood
(6) slab hot pressing, edging are got the homogeneous bamboo plywood.
The part thin bamboo strip is made bamboo sheet through the thread press machine,, the bamboo sheet of carbonization is weaved into bamboo curtain splint, perhaps the bamboo sheet of carbonization and not carbonization is mixed and weave into bamboo curtain splint the part or all of carbonization of bamboo sheet toning, with bamboo curtain splint as the top layer of slab or/and bottom.
The bamboo sheet that the top layer bamboo curtain splint is used is put into the charing jar, adds steam, and pressure regulation to 0.2-0.6MPa kept 1-5 hours down for 100-200 ℃ in temperature.
The part thin bamboo strip is made bamboo sheet through thread press, bamboo sheet is weaved into bamboo curtain splint, with bamboo curtain splint as the top layer of slab or/and bottom.
There is lower pressure wheel 11 to be connected with the first drive unit power output shaft on the support 1 of described thread press by first shaft coupling 12, there are track 13 and bearing block 3 to be slidingly matched on the support 1, upper pressure wheel 7 is positioned at the bearing 6 and lower pressure wheel 11 axially parallels of bearing block 3, bearing block 3 is connected with the threaded one end of adjusting screw(rod) 5, the other end of adjusting screw(rod) 5 is threaded with pressing plate 4, locking nut is arranged, on the adjusting screw(rod) 5 under the pressing plate spring 2 is arranged, upper pressure wheel 7 is connected with the power output shaft of second drive unit by second shaft coupling 9, on, there are rectangle or saw shape tooth in the surface of lower pressure wheel, on, the direction of rotation of lower pressure wheel is opposite, thin bamboo strip is positioned at, between the lower pressure wheel, through forming parallel some bamboo silks behind the pinch roller, the fiber between the bamboo silk does not all disconnect, and therefore connects in flakes.
Described bamboo curtain splint, establishment is nylon wire or cotton thread or plastic tape with line.
The bamboo sheet that the present invention equates thickness and slight sheet and be compiled into bamboo curtain splint with line respectively can guarantee that bamboo curtain splint thickness everywhere equates, the establishment efficient height of bamboo curtain splint, and cost is low.With the product quality of bamboo curtain splint oven dry, impregnation, secondary drying and production efficiency obviously be much higher than with bamboo chip directly dry, impregnation.Which floor assembly onboard bamboo curtain splint is divided into, because every layer of used bamboo curtain splint uniform thickness, make the contour onboard and homogeneous of slab behind the assembly, because bamboo curtain splint is that one deck is vertically arranged, one deck is laterally arranged, and makes the physical and mechanical property of sheet material on all directions behind the hot forming all good.Because blank surface is to be made of one or more layers bamboo curtain splint of arranging in the same way, the surface was both smooth, can carry out secondary operations again, can not make top layer fracture aliquation because of the sanding operation.If bamboo mat use on the surface, bamboo mat group sheet interlocks and uneven thickness, the group sector-meeting fracture of projection during sanding and aliquation.Here it is top layer of the present invention is with bamboo curtain splint and without the reason of bamboo mat.Both can simplify working process with bamboo curtain splint, reduce cost, enhance productivity, can guarantee also that the plate quality was even, thickness equates and surfacing.With the texture depth that the bamboo sheet carbonization can be regulated bamboo curtain splint, make bamboo clappers have the texture of high-grade timber.The glued board appearance luster that the present invention makes is natural, abundant, attractive in appearance, and is not yielding, and the intensity height can replace high-grade timber to be applied to build primary structure member, light structures body of wall, furniture.The used thread press of the present invention is simple in structure, easy to adjust, can be to the thin bamboo strip silk pressing of all thickness, and the silk pressing quality is good, even, does not disconnect between silk and the silk, and silk pressing efficient height improves the production efficiency of bamboo plywood greatly, the product quality raising.
Description of drawings:
Fig. 1 is the front view of thread press.
Fig. 2 is the left view of Fig. 1.
The specific embodiment:
Bamboo wood is sawn into plurality of sections, is divided into bamboo chip with wafer separator, go green grass or young crops to remove Huang bamboo chip, every bamboo chip is split into several thin bamboo strips, a part of thin bamboo strip is pressed into bamboo sheet on thread press every section.Bamboo sheet is put into the carbonization jar, add steam, pressure regulation to 0.2 or 0.4 or 0.6MPa is 130 ℃ or 140 ℃ or 150 ℃ in temperature and kept 1 hour or 2 hours or 4 hours or 5 hours down.
Bamboo sheet is worked out the parallel bamboo curtain splint of sheet in groups with line respectively with thin bamboo strip, and the used group sheet thickness of same bamboo curtain splint is basic identical.
To overlay assembly on the hot press plate behind bamboo curtain splint oven dry-impregnation-secondary drying layer by layer, the group sheet of adjacent two layers bamboo curtain splint becomes 90 ° of angles.The top layer is made of the bamboo curtain splint of 1 layer or 2 layers or 3 layers or 4 layers bamboo sheet establishment, and every layer is a bamboo curtain splint, the bamboo sheet of all bamboo curtain splints of top layer in the same way, angle is zero.1-4 layers of composition that also available wooden leather strap in top layer or piece are paved into.
With slab high-pressure molding under 20MPa pressure, and under said temperature curing molding, edging behind the demoulding, sanding promptly gets smooth smooth, no aliquation, the bamboo line is equal layer bamboo plywoods clearly.
Two frame supports 1 of thread press of the present invention have the bearing block 10 of pairing to be connected with upper pressure wheel 7 with lower pressure wheel 11 by bearing 6 respectively with bearing block 3.Track on bearing block 3 and the frame is slidingly matched, and is connected with the threaded one end of adjusting screw(rod) 5.The other end of adjusting screw(rod) 5 is threaded with pressing plate 4 on the support.There is spring base 8 to be connected on the adjusting screw(rod) 5 with spring 2.
Rotation adjusting screw(rod) 5 can make upper pressure wheel 7 upper and lower moving to adapt to the thickness of bamboo chip.Locking nut is arranged on the adjusting screw(rod).Upper and lower pinch roller is connected with motor output shaft with shaft coupling 12 by shaft coupling 9 respectively.Upper and lower pinch roller has rectangle or serrated teeth, with different direction rotations.
Claims (3)
1. homogeneous and can form the processing method of the bamboo plywood of natural texture comprises the steps:
(1) bamboo wood is sawn into the thick bamboo tube of Len req, thick bamboo tube is split into the bamboo chip of required width, bamboo chip is removed blue or green layer and yellow layer,
(2) bamboo chip is split into the thin bamboo strip of desired thickness,
(3) the part thin bamboo strip is worked out the first parallel bamboo curtain splint of sheet in groups with line, the used thin bamboo strip thickness difference of same bamboo curtain splint is at ± 2mm, the part thin bamboo strip is made bamboo sheet through thread press, and with the part or all of carbonization toning of bamboo sheet, the bamboo sheet of toning is put into the carbonization jar, add steam, pressure regulation kept 1-5 hour down at temperature 100-200 ℃ to 0.2-0.6MPa, and the carbonization bamboo sheet is weaved into second bamboo curtain splint, perhaps the bamboo sheet of carbonization and not carbonization is mixed and weave into second bamboo curtain splint
(4) with bamboo curtain splint oven dry, gluing, secondary drying,
(5) bamboo curtain splint is overlayed layer by layer on the plate of hot press and form slab, with second bamboo curtain splint as the top layer of slab or/and bottom, first bamboo curtain splint is as the intermediate layer of slab, the group sheet of adjacent two layers bamboo curtain splint acutangulates or the right angle angle, the top layer is or/and bottom is that zero 1-4 piece second bamboo curtain splint becomes the 1-4 layer to constitute by all group sheet angles
(6) slab hot pressing, edging are got the homogeneous bamboo plywood.
2. method according to claim 1, it is characterized in that having on the support (1) of described thread press lower pressure wheel (11) to be connected with the first drive unit power output shaft by first shaft coupling (12), there are track (13) and bearing block (3) to be slidingly matched on the support (1), upper pressure wheel (7) is positioned at the bearing (6) and lower pressure wheel (11) axially parallel of bearing block (3), bearing block (3) is connected with the threaded one end of adjusting screw(rod) (5), the other end of adjusting screw(rod) (5) is threaded with pressing plate (4), locking nut is arranged, spring (2) is arranged on the adjusting screw(rod) under the pressing plate (5), upper pressure wheel (7) is connected with the power output shaft of second drive unit by second shaft coupling (9), on, there are rectangle or saw shape tooth in the surface of lower pressure wheel, on, the direction of rotation of lower pressure wheel is opposite.
3. method according to claim 1, the establishment line that it is characterized in that described bamboo curtain splint is nylon wire or cotton thread or plastic tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100457986A CN101342714B (en) | 2008-08-13 | 2008-08-13 | Processing method for homogeneous and natural texture-forming bamboo plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100457986A CN101342714B (en) | 2008-08-13 | 2008-08-13 | Processing method for homogeneous and natural texture-forming bamboo plywood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101342714A CN101342714A (en) | 2009-01-14 |
| CN101342714B true CN101342714B (en) | 2010-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100457986A Expired - Fee Related CN101342714B (en) | 2008-08-13 | 2008-08-13 | Processing method for homogeneous and natural texture-forming bamboo plywood |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830017A (en) * | 2010-04-29 | 2010-09-15 | 苏悦东 | Manufacture method of colored texture bamboo board |
| CN101830016A (en) * | 2010-04-29 | 2010-09-15 | 苏悦东 | Manufacture method of bamboo dyeing slab |
| CN102398288B (en) * | 2010-09-17 | 2014-04-23 | 李和麟 | Method for manufacturing laminated veneer lumber by using wood |
| CN102335936B (en) * | 2011-09-28 | 2014-03-19 | 浙江农林大学 | Method for preparing bamboo curtain plywood formwork |
| CN103568085A (en) * | 2012-08-01 | 2014-02-12 | 翁惟 | Bamboo chip squeezing and setting-out machine |
| CN102935650B (en) * | 2012-11-27 | 2015-07-15 | 浙江凯森板业有限责任公司 | Production method of bamboo plywood |
| CN103707368A (en) * | 2013-12-20 | 2014-04-09 | 浙江鑫拓竹业科技有限公司 | Bamboo base board, bamboo composite board and manufacturing method of bamboo base board and bamboo composite board |
| CN104015241B (en) * | 2014-06-25 | 2017-02-15 | 湖北楚风竹韵科技有限公司 | Production method of mould-proof, anti-bacterial and flame-retardant wall decoration bamboo curtain |
| CN108621265A (en) * | 2017-03-16 | 2018-10-09 | 刘承承 | A kind of center adjusting device and automatic broken bamboo machine |
| CN110815427A (en) * | 2019-11-21 | 2020-02-21 | 缙云县金磊缝纫设备有限公司 | Preparation method of bamboo plywood, product and application thereof |
| CN113815064B (en) * | 2021-10-19 | 2022-12-23 | 山东明川木业集团有限公司 | Plywood compaction device |
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- 2008-08-13 CN CN2008100457986A patent/CN101342714B/en not_active Expired - Fee Related
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Granted publication date: 20101215 Termination date: 20170813 |