CN100364739C - Method for producing float laminated blank assembly of bamboo strand lamination - Google Patents
Method for producing float laminated blank assembly of bamboo strand lamination Download PDFInfo
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- CN100364739C CN100364739C CNB2006100811789A CN200610081178A CN100364739C CN 100364739 C CN100364739 C CN 100364739C CN B2006100811789 A CNB2006100811789 A CN B2006100811789A CN 200610081178 A CN200610081178 A CN 200610081178A CN 100364739 C CN100364739 C CN 100364739C
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Abstract
The present invention belongs to the technical field of bamboo artificial boards and composite materials, which comprises the steps that bamboo materials are made into bamboo sheets of different levels, bamboo splits, bamboo filaments and bamboo filament bundles by a regular processing and grading method; the bamboo sheets, the bamboo splits, the bamboo filaments and the bamboo filament bundles, which are in a quantitative, classification, staggered section, staggered head and tail mode form a uniform bamboo bundle unit; the uniform bamboo material unit of which the quantity is determined uniformly forms a uniform bamboo layer unit; the bamboo layer unit is immersed under the solution level of glue solutions, after achieving specified time, the bamboo layer unit is taken out, and the bamboo layer unit is placed in a float groove so as to form uniform single layer blanks; the bamboo layer unit on which gum dipping is carried out is glued and dried, and the bamboo layer unit containing glue of the composite blanks is pre-pressed into flaky blanks; the multilayer flaky pre-pressing materials form stacking blanks according to specified directions, levels and quantities, and the stacking blanks are heated in a module and pressed so as to form the bamboo splits and bamboo filament laminated wood. The present invention has the advantages of simple and easy operation, no curtain weaving process, capacity of forming multilayer thick blanks once, high blank forming quality, few processing steps, low cost and high utilization ratio and performance of the bamboo materials.
Description
Technical field
The invention belongs to bamboo wood-based plate and technical field of composite materials.
Background technology
There are many bamboo processing enterprises in China, produces multiple products such as bamboo wood-based plate, bamboo floor.Its main method is that bamboo processing is become some elementary cells, comprises bamboo chip, thin bamboo strips used for weaving, bamboo silk, makes various types of bamboo products through gluing method again.
The production technology of bamboo cord wood (bamboo plywood) is weaved into bamboo curtain splint again for bamboo wood is made thin bamboo strips used for weaving, and impregnation, assembly, compacting form.Bamboo curtain splint assemble pattern valuation base unit is the number of bamboo curtain splint, and in order to obtain more bamboo curtain splint, the thickness of thin bamboo strips used for weavings at different levels is thin as much as possible, and the scope of variation is little.Because the thin thickness of thin bamboo strips used for weaving, under the same volume conditions, surface area is big, and the amount of resin that consumes during impregnation is higher, and is big to cost impact.
The bamboo curtain splint assemble pattern is comparatively coarse and loaded down with trivial details, and operation is many, labour intensive, inefficiency.Especially compile curtain process labor intensive material resources, and quality is also wayward.In drying, impregnation, assembly process, exist loose problem, the gap of thin bamboo strips used for weaving, the position of braided wire to determine.There are a large amount of uncertain spaces bamboo cord wood of making and bamboo plywood inside, and is second-rate.
No matter be that bamboo chip, thin bamboo strips used for weaving, bamboo silk, tow preparing become bamboo cord wood (glued board) all to need an assembly processing step, the blank of composition quantity, direction, position (layer) on request evenly distributes.And present bamboo curtain splint assembly method is formed the requirement that lack of homogeneity, cost height, the labour intensive of batch of material can't satisfy the high-performance bamboo cord wood, needs new process route.
One of physical characteristic of bamboo wood is a poor permeability, and bamboo wood adopts the impregnation mode to handle.And resin is a liquid form, thin bamboo strips used for weaving in liquid (bamboo silk) freely-movable within the specific limits.Add that the density of bamboo wood is lower than the density of liquid resin, thin bamboo strips used for weaving (bamboo silk) can float over liquid surface.Through simple directed combing, can form thin bamboo strips used for weaving (bamboo silk) blank.
Because the high-performance bamboo cord wood need be controlled the performance of material, and the gap of the blank thin bamboo strips used for weaving of an assembly is easy to concentrate, and therefore, needs the repeatedly multilayer blank lamination assembly of assembly.
The rank and the quantity of each layer of lamination assembly blank are different, and high level bamboo wood is a plane materiel, and low-level is heartwood, and the ratio of adjustment layers of material can be controlled the performance of product.
Summary of the invention
The purpose of this invention is to provide a kind of float laminated assembly manufacture method of bamboo cord wood, this method has simple and easy to do, has removed volume curtain technology, can once form the multilayer thick stock, improve the assembly quality, reduced processing step, reduce cost, improved the utilization rate and the culm property of bamboo wood.For this reason, method of the present invention comprises the steps:
(1) collection of bamboo wood, the collection of bamboo wood need be to bamboo kinds, collecting location, acquisition time, collection quantity, gather people, bamboo age, the diameter of a cross-section of a tree trunk 1.3 meters above the ground, length, there is clearly record in the footpath slightly;
(2) the range estimation classification of bamboo wood is classified to footpath level, length, tip footpath, degree of crook and the defective of bamboo wood;
(3) processing of bamboo stalk, the annular saw that is processed as of bamboo stalk blocks, and length is with reference to regulation, and bamboo stalk length is the clear length size, and diameter, the thickness of bamboo wall, circularity, the sharpening degree of the bamboo stalk after the segmentation are classified, and bamboo stalk length modulus is the clear length size;
(4) processing of thin bamboo strips used for weaving bar, the processing method of hair bamboo strip are the broken bars of machinery that collides, and the width of bamboo strip is advisable with 10 ± 2 mm, and the thickness of bamboo strip needs evenly, and same group of bamboo strip thickness error must not surpass ± 10%;
(5) remove surf green, remove surf green with scraping blue or green method, must not there be surf green the processing rear surface;
(6) fixed thick the hacking of bamboo bar, the processing of thin bamboo strips used for weaving adopt the thin bamboo strip breaking machine tool to finish, adopt laterally fixed thickly hack, laterally to separate piece, hack the first time of bamboo bar to fixed thick hacking, be divided into surf green sheet and tabasheer sheet, get the surf green sheet;
(7) bamboo chip to separate piece and classification, the surf green sheet adopts the separate piece method, makes multistage thin bamboo strips used for weaving, at first selecting the thickness mode number sequence row of surf green sheet, is first sequence with 0.8mm, and 1.0mm is second sequence, 0.6mm be the 3rd sequence, when reaching 1.6mm, can further hack as if surf green sheet thickness, obtain A, two kinds of other thin bamboo strips used for weavings of level of B, and the thickness of surf green sheet is when reaching 3.2mm, A and B level can further be made A0, A1 and B0, B1 level Four thin bamboo strips used for weaving, the thickness of surf green sheet are rule value;
(8) the digital scan classification of bamboo chips at different levels, need adopt the method for ultrasonic wave nondestructive testing, measure thickness, moisture content, density, intensity and the modulus of thin bamboo strips used for weavings at different levels, and according to the modulus classification;
(9) mitered of continuous thin bamboo strips used for weaving, the thin bamboo strips used for weaving that employing mitered mode can be certain with length is connected into continuous thin bamboo strips used for weaving, and the gradient of mitered is 1/10, adopts the machinery mode of cutting sth. askew to process, and it is bonding that the inclined-plane sticks with glue agent, pressurization, heating curing fast;
(10) throwing of thin bamboo strips used for weaving, classification thin bamboo strips used for weaving can adopt wire drawing or silk pressing method to make bamboo silk and bamboo tow;
(11) composition of even bamboo Shu Danyuan is formed uniform bamboo Shu Danyuan with quantitative, deciding grade and level, ring thin bamboo strips used for weaving or bamboo tow staggered, that put upside down end to end;
(12) the even bamboo Shu Danyuan that quantity is determined forms uniform bamboo layer unit;
(13) drying, with bamboo layer unit drying, moisture content is lower than 10%;
(14) impregnation immerses bamboo layer unit below the glue liquid level, takes out after reaching the stipulated time,
(15) float glass process assembly is put into float bath with the bamboo layer unit behind the impregnation, and directed cloth is even, and hoisting frame is increased to more than the liquid level, and the even support of thin bamboo strips used for weaving is on hoisting frame;
(16) drop glue, drying, bamboo layer unit one end that assembly is good is fixed, and hangs up drop glue, drying;
(17) the pre-binder of mould precompressed slabbing is put in blank precompressed, assembly blank;
(18) lamination assembly: with the pre-binder assembly of multilayer, the individual layer assembly is used for the shaping sheet laminated timber, and the multilayer assembly is high level to be plane materiel, and low-level is heartwood, also can be with each layer with the folded assembly of different directions multilayer;
(19) press curing, with the compression moulding of in mould, pressurizeing of multilayer laminated assembly blank, 140 ℃ of solidification temperatures, pressure 3-4Mpa, 10 minutes time, 75 ℃ of cold cold temperature are down solidified the back depanning, cutting edge;
(20) product detects, and non-destructive detecting devices such as employing ultrasonic wave comprise moisture content, density, modulus and intensity detection to the performance of product, and the result can regulate for assembly and use, and also can be used as the proof of the performance of product.
The sectional area of described bamboo silk is 0.5～3mm
2Described adhesive is selected phenolic aldehyde or epoxy resin for use, uses solvent dilution, adjusts the concentration of glue.Being processed as the classification bamboo chip and can adopting the silk pressing method to make the bamboo silk of described bamboo silk and tow, single bamboo chip can be made into the tow that some bamboo silks are formed, and the multi-disc bamboo chip then can be made into bigger tow; The bamboo chip rank is the A level, and 24GPa, width are 15mm, and thickness 1.5mm, thread press are processed into the bamboo silk of 10 1.5mm moneys, forms one group of bamboo tow.The folded assembly of described multilayer then is bamboo silk or the thin bamboo strips used for weaving that utilizes two-stage above, high-level bamboo silk or thin bamboo strips used for weaving are plane materiel, low level bamboo silk or thin bamboo strips used for weaving are heartwood, and with each rank bamboo silk or thin bamboo strips used for weaving or float glass process composition blank, multilayer laminated again assembly compacting forms respectively.
It is simple and easy to do that advantage of the present invention is that this method has, and removed volume curtain technology, can once form the multilayer thick stock, improved the assembly quality, reduces processing step, reduces cost, and improves the utilization rate and the culm property of bamboo wood.
The float glass process assembly can be formed the blank of various directions, as 0 ° and 90 ° etc.The bamboo cord wood kind that the float glass process assemble pattern is produced is as follows:
(1) bamboo silk (thin bamboo strip) laminated timber
With continuous bamboo silk or thin bamboo strips used for weaving is elementary cell, adopts impregnation, the unidirectional assembly of float glass process, the sheet material that compacting forms.According to the thickness of sheet material, can be divided into single-stage assembly and multistage lamination assembly.
The single-stage assembly is used for the shaping sheet laminated timber.Because thin thickness can't adopt many what stacked assemble pattern control product qualities.But adopt the digital scan mode, control bamboo silk (thin bamboo strips used for weaving) quality, thereby the quality of control laminated timber.
Multistage stacked assembly then is the bamboo silk (thin bamboo strips used for weaving) that utilizes two-stage above, and high-level bamboo silk (thin bamboo strips used for weaving) is a plane materiel, and low level bamboo silk (thin bamboo strips used for weaving) is a heartwood, respectively each rank bamboo silk (thin bamboo strips used for weaving) float glass process is formed blank, and multilayer laminated again assembly compacting forms.
(2) bamboo silk (thin bamboo strips used for weaving) laminate
With continuous bamboo silk (thin bamboo strip) is elementary cell, adopts impregnation, the unidirectional assembly of float glass process, and each layer with the stacked assembly of different directions, suppressed the sheet material that forms.Each layer direction has multiple choices.
Figure of description
Structural representation when figure is the gluey attitude of assembly drill traverse of the present invention
The specific embodiment
(1) collection of bamboo wood
The collection of bamboo wood need be to bamboo kind, collecting location, acquisition time, collection quantity, gather people, bamboo age, the diameter of a cross-section of a tree trunk 1.3 meters above the ground, length, there is clearly record in the footpath slightly;
The collection requirement of table 1 bamboo wood
| The bamboo wood title | Mao bamboon | Bamboo age | 4 years | Gather quantity | 100 |
| Collecting location: | Young pathbreaker village, Xinchang, Zhejiang | Date | Gather the people |
Table 2 bamboo wood size
| The chest measurement footpath is very little | Diameter mm | Long level | Tip footpath | Quantity |
| 8 | 80 | ≥5.5m | ≥50mm | 45 |
| 9 10 11 | 90 100 ≥110 | ≥6m ≥6.5m ≥7m | ≥50mm ≥50mm ≥50mm | 27 13 5 |
Crooked: bamboo wood must not have local buckling, as the dog leg of bamboo root.Integrally bending is less than 1%.
The requirement of table 3 bamboo wood material
| The defective title | Computational methods | Allow limit |
| The withered small holes caused by worms casing coupling wound of breaking of damaging by worms of going mouldy | The interior minimum diameter of the interior length class scope of length class scope must not must not must not surpass above the degree of depth of length class above vertical maximum line length of place circumference above must not respectively being no more than the arc length width above two ends in the length class scope in the worm channel length class scope of 5mm in the interior length class scope of length class scope | Mustn't have to have to have 32 joint 30%10%3mm mustn't be arranged |
(2) the range estimation classification of bamboo wood
Footpath level, length, tip footpath, degree of crook and defective to bamboo wood are classified;
The middle diabolo stalk of the geometric shape of bamboo wood for cutting apart by ring, main physical dimension has: the major diameter of the spacing of the length of bamboo stalk, the diameter of a cross-section of a tree trunk 1.3 meters above the ground, ring quantity, ring, the big end of bamboo stalk and small end; Minor axis and bamboo wall thickness etc.
Wherein D1 is the major diameter of the big end of bamboo stalk, and D2 is a minor axis, and t1 is the bamboo wall thickness; D3 is the major diameter of bamboo stalk small end, and D4 is a minor axis, and t2 is the bamboo wall thickness.According to these data, can obtain average diameter D12 and D34, circularity C12 and C34, the taperingness Sb of bamboo stalk and the taperingness Sw of bamboo wall of the big and small end of bamboo stalk.
D12＝(D1+D2)/2 (1)
D34＝(D3+D4)/2 (2)
C12＝D2/D1 (3)
C34＝D4/D3 (4)
Sb＝(1-D34/D12)/L (5)
Sw＝(1-t2/t1)/L (6)
The circularity of bamboo stalk is the ratio of the short major diameter of bamboo stalk, as is 1 o'clock, and the bamboo stalk is a pipe.Less than 1 is oval.The taperingness of bamboo stalk and bamboo wall has been represented the footpath of bamboo stalk and bamboo wall and the variation of thickness.The length processing method of bamboo stalk is to use annular saw that the bamboo stalk is sawn into certain length, considers the variability on the length direction, need be stipulated the length of bamboo stalk and the mode of drawing materials.It at first is the modularization of length direction.As following table:
The length sequences of table 4 bamboo wood
| Modulus and length sequences m | 0.03 | 0.06 | 0.09 | 0.15 | 0.3 | 0.6 | 0.9 | 1.2 | 1.8 |
| 2.4 | 3.0 | 3.6 | 4.2 | 4.8 | 5.4 | 6.0 | 6.6 | 7.2 |
The length modulus of bamboo stalk is the clear length size, can determine nominal dimension as required.
The bamboo wood-based plate needs the length of thin bamboo strips used for weaving to have two kinds, is respectively 1.33m and 2.54m.The point-score of bamboo stalk have four kinds as follows:
Table 5 mao bamboon bamboo stalk length segment method
| The bamboo stalk | Bamboo stalk length m | I | II | III | VI | V | |
| The equal non-equal method III of the non-equal method II of the non-equal method I of point-score | 1.3 | 1.3 1.3 2.5 2.5 | 1.3 2.5 1.3 2.5 | 1.3 1.3 1.3 1.3 | 1.3 1.3 1.3 | 1.3 | |
| 1.3 1.3 1.3 | 2.5 2.5 2.5 | ||||||
The segmentation of bamboo stalk represents that with Roman number the bottom of bamboo stalk is I, is followed successively by II; III; VI; V etc.
(3) processing of thin bamboo strips used for weaving bar (wool top)
The processing of wool top is adopted to collide and is finished, and can break bar according to the average girth diameter five equilibrium of bamboo stalk.The width of wool top is little, helps the even of bamboo wood.Generally with 5mm, 10mm and 15mm are width series.Width is little, is applicable to the bamboo stalk that girth diameter is little, and width is applicable to the bamboo stalk that girth diameter is big greatly.With mao bamboon non-homogeneous I kind point-score II section (2.5m) is example, and its average diameter is 85mm, girth diameter 266mm.Select the 10mm width, can adopt 26 five equilibriums to break bar.The mean breadth of wool top is 10.1mm, and thickness is 8.4mm.The thickness of bamboo strip needs evenly, and same group of bamboo strip thickness error must not surpass ± 10%.The modulus of bamboo strip and width regulation are as follows:
The width sequence of table 6 bamboo chip
| Modulus 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
| Modulus 4 | 8 | 12 | 16 | 20 | 24 | 28 | 32 |
| Modulus 5 | 10 | 15 | 20 | 25 | 30 |
(4) bamboo bar fixed thick and to separate piece
With 9 cun mao bamboons, the wide bamboo bar of 10mm is an example, and the big end thickness of bamboo bar is 9.5mm, and small end thickness is 7.3mm.The regular thickness of processing bamboo bar is 6.8mm, sees Table-3.The thickness of surf green sheet is regularization, is chosen as 3.2mm, and tabasheer sheet thickness is 3.6mm.
For the big structural lumber of thickness, can select the simplest surf green sheet and tabasheer sheet two-stage stage division for use.
The surf green sheet to dividing, can be obtained A, B two-stage bamboo chip, and thickness is 1.6mm, adds that the tabasheer sheet is 3 grades.
The broken thin bamboo strip of A level bamboo chip is good, can further hack, and obtains A0, the bamboo chip that A1 two-stage 0.8mm is thick.Be 4 grades of bamboo chips of 3 kinds of thickness altogether.A0, A1, B, tabasheer sheet.Can select the thickness of surf green and tabasheer sheet according to following table through the different-thickness bamboo chip of removing surf green and tabasheer.
The selection of table 7 surf green/tabasheer sheet thickness sequence
| Bamboo chip is thick | 2.0 | 2.8 | 3.6 | 4.4 | 5.2 | 6.0 | 6.8 | 7.6 | 8.4 | 9.2 | 10. | 10.8 |
| Surf green sheet tabasheer sheet surf green sheet tabasheer sheet surf green sheet | - 2.0 - 2.0 - | 0.6 2.2 0.8 2.0 1.0 | 1.2 2.4 1.6 2.0 1.0 | 1.2 3.2 1.6 2.8 2.0 | 2.4 2.8 1.6 3.6 2.0 | 2.4 3.6 1.6 4.4 2.0 | 2.4 4.4 3.2 3.6 2.0 | 2.4 5.2 3.2 4.4 2.0 | 2.4 6.0 3.2 5.2 4.0 | 2.4 6.8 3.2 6.0 4.0 | 4.8 5.2 3.2 6.8 4.0 | 4.8 6.0 3.2 7.6 4.0 |
| The tabasheer sheet | 2.0 | 1.8 | 2.6 | 2.4 | 3.2 | 4.0 | 4.8 | 5.6 | 4.4 | 5.2 | 6.0 | 6.8 |
(5) the digital scan classification of bamboo wood
Above bamboo wood be classified as the processing stage division, adopt identical processing method can obtain the thin bamboo strips used for weaving of different stage.But the performance of thin bamboo strips used for weaving is not also determined.
The digital scan classification then is to utilize the ultrasonic wave digital scanner that the thin bamboo strips used for weaving of processing classification is determined its physics and mechanical property.Carry out digital classification according to test result, the classification modulus is as follows:
The digital classification of table 8 bamboo woods at different levels
| A level bamboo wood modulus GPa | 26 | 24 | 22 | 20 | 18 |
| B level bamboo wood modulus GPa C level bamboo wood modulus GPa | 17 13 | 16 12 | 15 11 | 14 10 | |
| D level bamboo wood modulus GPa | 9 | 8 | 7 | 6 |
With 9 cun footpath levels, the parameter of the processing of II section bamboo stalk (2.5m) bamboo wood and digital scan classification and main measurement has the thickness of thin bamboo strips used for weaving, density, moisture content, modulus and intensity.
(6) processing of bamboo silk and tow, classification bamboo chip can adopt the silk pressing method to make the bamboo silk, and single bamboo chip can be made into the tow that some bamboo silks are formed, and the multi-disc bamboo chip then can be made into bigger tow; The bamboo chip rank is the A level, and 24GPa, width are 15mm, and thickness 1.5mm, thread press are processed into the bamboo silk of 10 1.5mm moneys, forms one group of bamboo tow.
(7) even single layer cell is formed with quantitative, deciding grade and level, staggered bamboo chip, thin bamboo strips used for weaving, bamboo silk and the tow of ring in even bamboo tow unit.As slub length is 280mm, is the dislocation spacing with 50mm, and 30mm is a starting point, has 5 kinds of dislocation bamboo chips to make corresponding bamboo tow.End is put upside down end to end, amounts to 10 bundles and forms even bamboo tow unit.
(8) evenly organize layer unit, one deck group layer unit formed in 25 groups of bamboo tow unit.
(9) drying
The classification bamboo wood needs drying, and moisture content is lower than 10%.
(10) impregnation, adhesive is selected phenolic aldehyde for use, adjusts the concentration of glue, and various bamboo single layer cell are immersed glue, reaches the stipulated time, takes out, and the stipulated time is 9～15 minutes.
(11) float glass process assembly
As shown in the figure, take out the bamboo wood 1 of forming bamboo layer unit and be placed in the carriage 2 (carriage should guarantee that the end is flat and leak glue), carriage is put into float glass process assembly groove 4 again, the density of bamboo wood is lower than glue 3, bamboo wood emersion liquid level.Bamboo slightd use settling, cloth is even.Carriage is risen.
(12) drop glue is fixed on bamboo layer unit one end on the hanger, rises hanger drop glue.
(13) contain precompressed, the drying of glue bamboo layer unit
The bamboo layer unit pre-binder of precompressed slabbing on multilayer precompressed drying machine that contains glue behind the assembly, and dry.
(14) stacked assembly
With two or more pre-binder layering assemblies, high level is plane materiel, and low-level is core.
(15) compression molding
With the compression moulding of multilayer laminated assembly blank, 140 ℃ of solidification temperatures, pressure 3-4MPa.10 minutes time, 75 ℃ of cold cold temperature down.
(16) cut edge husky light
Bamboo strengthens the material length direction need cut edge surperficial husky light.
(17) detect
With the ultrasonic wave nondestructive testing and, to moisture content, density, modulus, the intensity detection of bamboo reinforcing material.Structure is as the index of product, also for regulating the assembly ratio, the service of control properties of product.Main product specification is that index is as follows with the modulus:
The modulus classification of the stacked thin bamboo strips used for weaving gummed of table 9 two-stage material
| The stacked thin bamboo strips used for weaving gummed of A0/A1 level material GPa | 27 | 25 | 23 | 21 | 19 | 17 | 15 |
| The stacked thin bamboo strips used for weaving gummed of B/C level material GPa | 14 | 13 | 12 | 11 | |||
| The stacked thin bamboo strips used for weaving gummed of C/D level material GPa | 10 | 9 | 8 | 7 | 6 |
How much indexs of the product of bamboo cord wood comprise the precision and the depth of parallelism of length, width, thickness, physical dimension, and physical property comprises density, moisture content, hardness, and mechanical property has modulus and intensity.Need the authentication of the quality certification and quality.
Claims (5)
1. the float laminated assembly manufacture method of a bamboo cord wood is characterized in that:
(1) collection of bamboo wood, the collection of bamboo wood need be to bamboo kinds, collecting location, acquisition time, collection quantity, gather people, bamboo age, the diameter of a cross-section of a tree trunk 1.3 meters above the ground, length, there is clearly record in the footpath slightly;
(2) the range estimation classification of bamboo wood is classified to footpath level, length, tip footpath, degree of crook and the defective of bamboo wood;
(3) processing of bamboo stalk, the annular saw that is processed as of bamboo stalk blocks, and length is with reference to regulation, and bamboo stalk length is the clear length size, and diameter, the thickness of bamboo wall, circularity, the sharpening degree of the bamboo stalk after the segmentation are classified, and bamboo stalk length modulus is the clear length size;
(4) processing of thin bamboo strips used for weaving bar, the processing method of hair bamboo strip are the broken bars of machinery that collides, and the width of bamboo strip is advisable with 10 ± 2mm, and the thickness of bamboo strip needs evenly, and same group of bamboo strip thickness error must not surpass ± 10%;
(5) remove surf green, remove surf green with scraping blue or green method, must not there be surf green the processing rear surface;
(6) fixed thick the hacking of bamboo bar, the processing of thin bamboo strips used for weaving adopt the thin bamboo strip breaking machine tool to finish, adopt laterally fixed thickly hack, laterally to separate piece, hack the first time of bamboo bar to fixed thick hacking, be divided into surf green sheet and tabasheer sheet, get the surf green sheet;
(7) bamboo chip to separate piece and classification, the surf green sheet adopts the separate piece method, makes multistage thin bamboo strips used for weaving, at first selecting the thickness mode number sequence row of surf green sheet, is first sequence with 0.8mm, and 1.0mm is second sequence, 0.6mm be the 3rd sequence, when reaching 1.6mm, can further hack as if surf green sheet thickness, obtain A, two kinds of other thin bamboo strips used for weavings of level of B, and the thickness of surf green sheet is when reaching 3.2mm, A and B level can further be made A0, A1 and B0, B1 level Four thin bamboo strips used for weaving, the thickness of surf green sheet are rule value;
(8) the digital scan classification of bamboo chips at different levels, need adopt the method for ultrasonic wave nondestructive testing, measure thickness, moisture content, density, intensity and the modulus of thin bamboo strips used for weavings at different levels, and according to the modulus classification;
(9) mitered of continuous thin bamboo strips used for weaving, the thin bamboo strips used for weaving that employing mitered mode can be certain with length is connected into continuous thin bamboo strips used for weaving, and the gradient of mitered is 1/10, adopts the machinery mode of cutting sth. askew to process, and it is bonding that the inclined-plane sticks with glue agent, pressurization, heating curing fast;
(10) throwing of thin bamboo strips used for weaving, classification thin bamboo strips used for weaving can adopt wire drawing or silk pressing method to make bamboo silk and bamboo tow;
(11) composition of even bamboo Shu Danyuan is formed uniform bamboo Shu Danyuan with quantitative, deciding grade and level, ring thin bamboo strips used for weaving or bamboo tow staggered, that put upside down end to end;
(12) the even bamboo Shu Danyuan that quantity is determined forms uniform bamboo layer unit;
(13) drying, with bamboo layer unit drying, moisture content is lower than 10%;
(14) impregnation immerses bamboo layer unit below the glue liquid level, takes out after reaching the stipulated time;
(15) float glass process assembly is put into float bath with the bamboo layer unit behind the impregnation, and directed cloth is even, and hoisting frame is increased to more than the liquid level, and the even support of thin bamboo strips used for weaving is on hoisting frame;
(16) drop glue, drying, bamboo layer unit one end that assembly is good is fixed, and hangs up drop glue, drying;
(17) the pre-binder of mould precompressed slabbing is put in blank precompressed, assembly blank;
(18) lamination assembly, with the pre-binder assembly of multilayer, the individual layer assembly is used for the shaping sheet laminated timber, and the multilayer assembly is high level to be plane materiel, and low-level is heartwood, also can be with each layer with the folded assembly of different directions multilayer;
(19) press curing, with the compression moulding of in mould, pressurizeing of multilayer laminated assembly blank, 140 ℃ of solidification temperatures, pressure 3-4Mpa, 10 minutes time, 75 ℃ of cold cold temperature are down solidified the back depanning, cutting edge;
(20) product detects, and non-destructive detecting devices such as employing ultrasonic wave comprise moisture content, density, modulus and intensity detection to the performance of product, and the result can regulate for assembly and use, and also can be used as the proof of the performance of product.
2. the float laminated assembly manufacture method of bamboo cord wood according to claim 1, it is characterized in that: the sectional area of described bamboo silk is 0.5～3mm
2
3. the float laminated assembly manufacture method of bamboo cord wood according to claim 1, it is characterized in that: described adhesive is selected phenolic aldehyde or epoxy resin for use, uses solvent dilution, adjusts the concentration of glue.
4. the float laminated assembly manufacture method of bamboo cord wood according to claim 1, it is characterized in that: being processed as the classification bamboo chip and can adopting the silk pressing method to make the bamboo silk of described bamboo silk and tow, single bamboo chip can be made into the tow that some bamboo silks are formed, and the multi-disc bamboo chip then can be made into bigger tow; The bamboo chip rank is the A level, and 24GPa, width are 15mm, and thickness 1.5mm, thread press are processed into the bamboo silk of 10 1.5mm moneys, forms one group of bamboo tow.
5. the float laminated assembly manufacture method of bamboo cord wood according to claim 1, it is characterized in that: the folded assembly of described multilayer then is bamboo silk or the thin bamboo strips used for weaving that utilizes two-stage above, high-level bamboo silk or thin bamboo strips used for weaving are plane materiel, low level bamboo silk or thin bamboo strips used for weaving are heartwood, with each rank bamboo silk or thin bamboo strips used for weaving or float glass process composition blank, multilayer laminated again assembly compacting forms respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100811789A CN100364739C (en) | 2006-05-24 | 2006-05-24 | Method for producing float laminated blank assembly of bamboo strand lamination |
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| CNB2006100811789A CN100364739C (en) | 2006-05-24 | 2006-05-24 | Method for producing float laminated blank assembly of bamboo strand lamination |
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| CN1883904A CN1883904A (en) | 2006-12-27 |
| CN100364739C true CN100364739C (en) | 2008-01-30 |
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| CNB2006100811789A Expired - Fee Related CN100364739C (en) | 2006-05-24 | 2006-05-24 | Method for producing float laminated blank assembly of bamboo strand lamination |
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| CN101327609B (en) * | 2007-06-22 | 2011-08-03 | 郎雨 | Method for producing ultra-long bamboo wood composite section bar |
| CN101700666B (en) * | 2009-11-04 | 2012-02-01 | 嘉善新华昌木业有限公司 | Plywood flow-line assembling method and apparatus for bottom board of container |
| CN102658569A (en) * | 2012-05-05 | 2012-09-12 | 福建省大田县华兴木业有限公司 | Bamboo composite plywood structure for bottom plate of container and production method thereof as well as product |
| CN103056929B (en) * | 2012-12-17 | 2014-12-31 | 益阳华宇机械有限公司 | Method and device for turning over bamboo chips used for summer sleeping mat |
| CN103101095B (en) * | 2013-01-31 | 2015-02-11 | 重庆知德文化传播有限公司 | Long bamboo filament manufacture process |
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| CN106493808A (en) * | 2015-09-06 | 2017-03-15 | 湖南中南神箭竹木有限公司 | A kind of method for producing bamboo black hair and bamboo curtain splint |
| CN107471336A (en) * | 2016-06-07 | 2017-12-15 | 赵星 | The moulded glued method into square bar of bamboo and wood materials high-moisture percentage |
| CN106272764B (en) * | 2016-08-25 | 2018-05-25 | 国际竹藤中心 | The stage division of specification bamboo cane modulus and density |
| CN114083629B (en) * | 2021-11-24 | 2022-08-09 | 国际竹藤中心 | Continuous strip-shaped bamboo skin preparation system and preparation method |
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| US5972467A (en) * | 1998-07-23 | 1999-10-26 | Washo; Kenji | Pressure forming process for pressure-formed bamboo products |
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