CN104972540A - Bamboo material spreading method - Google Patents
Bamboo material spreading method Download PDFInfo
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- CN104972540A CN104972540A CN201410149691.1A CN201410149691A CN104972540A CN 104972540 A CN104972540 A CN 104972540A CN 201410149691 A CN201410149691 A CN 201410149691A CN 104972540 A CN104972540 A CN 104972540A
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- Prior art keywords
- thick bamboo
- bamboo tube
- deploying
- described thick
- tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/06—Softening or hardening of wood
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
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- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention provides a bamboo material spreading method. The bamboo material spreading method comprises the steps that at least one part of the outer bamboo surface of a bamboo pipe is removed, and the inner bamboo surface of the bamboo pipe is reserved; at least one axial gap which penetrates through the bamboo pipe in the axial direction of the bamboo pipe is formed in the bamboo pipe; the bamboo pipe is softened; grooves and/or holes are formed in the inner surface of the bamboo pipe; and the bamboo pipe which is processed through removal of at least one part of the outer bamboo surface and reservation of the inner bamboo surface is spread, so that a spread bamboo plate is obtained. By the adoption of the bamboo material spreading method, the number of cracks is small, spread is easy, and materials are saved.
Description
Technical field
The present invention relates to bamboo processing technique field, especially relate to a kind of bamboo wood method of deploying.
Background technology
Bamboo wood, because it is relative to the excellent properties of timber, utilizes the bamboo board of bamboo wood manufacture to be widely used.Traditionally, utilize bamboo wood to manufacture bamboo board, need thick bamboo tube to cut open vertically and obtain bamboo block bar, bamboo cane block is cutd open into bamboo chip by the thickness direction (i.e. the radial direction of thick bamboo tube) then along bamboo block bar, then to bamboo chip impregnation, is pressed into bamboo board.The production method of this bamboo board due to glue consumption large, environmental-protecting performance is poor, and complex manufacturing, and it is poor that sheet material freezes.For this reason, propose and cut thick bamboo tube open rear expansion vertically and obtain individual layer bamboo board, due to without the need to splicing, environmental protection, therefore applies more and more many.But, due to the special shape that bamboo hollow wall is thin, problem of Cracking in expansion process is the major reason of restriction bamboo wood method of deploying always, in other words, in expansion process, thick bamboo tube can produce longer darker crackle, or even along the through crackle of thick bamboo tube thickness direction, thus limit the application of the bamboo board after expansion, and the outward appearance of bamboo clappers after launching is poor.Still there is various problem in bamboo wood method of deploying of the prior art, therefore there is the demand of improvement.
In prior art, the method for bamboo wood method of deploying is divided into following a few class substantially:
First kind method of deploying: thick bamboo tube retained whole Outer part and inner part of the bamboos before expansion.Such as Chinese patent application CN1966223A proposes a kind of flattening method of former bamboo arc bamboo sheet, wherein thick bamboo tube is processed into Outer part and inner part of the bamboo and the arc bamboo sheet of width parallel edges or parallel surface such as has by the method, then flattens arc bamboo sheet with hot press.But, this flattening method, need thick bamboo tube to be processed into bamboo chip, the requirement on machining accuracy of bamboo chip is high, complex process; And, present inventor finds, the bamboo board that this method of deploying obtains, problem of Cracking is still serious, limit the application of bamboo board, such as the production of chopping block, and cannot cannot obtain the wide bamboo board of breadth, such as, substantially cannot be equaled the bamboo board of the breadth width of the girth of whole thick bamboo tube or half thick bamboo tube.
Also proposed in prior art and retain Outer part and inner part of the bamboo and on tabasheer, processed oblique trunking before Bamboo flattening, such as Chinese patent application CN101138851 discloses a kind of bamboo flattening method, wherein the thick bamboo tube remaining Outer part and inner part of the bamboo is cut open along thick bamboo tube and obtain bamboo block, then on the internal layer of bamboo block, process oblique trunking, flatten and obtain bamboo board.Prior art also teaches to retain Outer part and inner part of the bamboo and process to lead on tabasheer while flattening and split eye.Such as, Chinese patent application CN101100082 proposes a kind of bamboo flattening method retaining Outer part and inner part of the bamboo, is wherein softened by the thick bamboo tube remaining Outer part and inner part of the bamboo, while flattening, on the tabasheer of thick bamboo tube, then applies leading of dispersion split eye.Tabasheer being processed wire casing and leads the method for deploying Problems existing splitting eye is still there is cracking, the effect launched is undesirable, yield rate is low, and the degree of depth that the wire casing on tabasheer or lead splits eye needs very dark, just can show the effect preventing from ftractureing, dark wire casing and lead and split eye and have impact on plate surface quality, in the application that some are high to plate surface quality requirement, need the thickness removing sheet material large, such as lead and split eye and wire casing needs to be deep into bamboo meat certain depth, therefore follow-up needs removes whole tabasheer and a part of bamboo meat, waste material, the utilization rate of bamboo wood is low.
Equations of The Second Kind method of deploying: thick bamboo tube removed whole Outer part and inner part of the bamboos before flattening simultaneously, such as Chinese patent application CN101062568A, CN2547484Y proposes method thick bamboo tube being launched well-thought-out plan flat board respectively, wherein before expansion, removes Outer part and inner part of the bamboo simultaneously.This method of deploying Problems existing is that stock utilization is low, and energy consumption is high, cannot large-scale application, and it is very complicated to remove tabasheer, labor intensive material resources, removes tabasheer difficulty and the weak effect that efficiency is low, tabasheer is removed, causes thick bamboo tube wall uneven.
In brief, in bamboo wood method of deploying of the prior art, a class retained whole Outer part and inner part of the bamboos before flattening, and another kind of be removed whole Outer part and inner part of the bamboos before flattening simultaneously, and as mentioned above, these two class methods all exist respective problem.It is also proposed in prior art thick bamboo tube expansion before only remove surf green but tabasheer is not processed (such as, do not remove tabasheer, also do not process to lead on bamboo internal layer split eye or wire casing).But present inventor finds, when not processing tabasheer, only relying on and removing a part of surf green, not good to the inhibition of cracking, cracking phenomena is still serious, launches weak effect.
Present inventor studies discovery: ftracture in bamboo wood method of deploying process mainly because surf green causes, the institutional framework of bamboo is radially followed successively by surf green, bamboo meat and tabasheer from outside to inside.Surf green mainly comprises the finest and close part of wax coat, silicone grease layer and vascular bundle, the part that vascular bundle is the finest and close and vascular bundle content many, density is large, and growth stress is large, is difficult to Tension and Compression, is difficult to distortion.And surf green hardness is large, is difficult to soften, therefore easily ftractures in expansion process.Secondly, tabasheer is primarily of the outer organizational composition of marrow, and not containing fiber tube bank, but hardness is also comparatively large, and therefore in expansion process, tabasheer is the secondary cause causing ftractureing.Bamboo meat is the part between Outer part and inner part of the bamboo, and form primarily of parenchyma cell, vascular bundle is few, and due to the easy Tension and Compression of parenchyma cell, hardness is less, not easy to crack in expansion process.
Present inventor is by large quantifier elimination and the unexpected discovery of experiment, before expansion, remove a part of surf green and retain tabasheer, then launch, the effect avoiding thick bamboo tube to ftracture still has problems, yield rate is still undesirable, be unfavorable for that industrial scale is applied, but, present inventor removed a part of surf green and at least retains a part of tabasheer before expansion, and then at bamboo internal layer (mainly tabasheer before launching or in the process launched, also can comprise a part of bamboo meat) on process groove and/or eyelet, bamboo wood occurs that in expansion process cracking phenomena significantly reduces, yield rate improves greatly.And, process to lead on tabasheer with reservation surf green and split eye and compare with wire casing, by removing a part of surf green, before launching or the degree of depth of the groove that processes on bamboo internal layer in expansion process and/or eyelet can greatly reduce, and cracking reduces, yield rate improves greatly, therefore, even if in the application high to plate surface quality requirement, the follow-up material thickness needing to remove inside bamboo is little, improve stock utilization, reduce cost.
Present inventor studies discovery, and by removing a part of surf green before expansion, in softening process, softening medium more easily penetrates in bamboo meat, thus improves bating effect, reduces cracking.Meanwhile, by means of only a part of surf green of removal, just can destroy the growth stress of surf green, thus reduce cracking in expansion process.By removing a part of surf green and process groove with before launching or in expansion process on bamboo internal layer and/or eyelet combining, reduce the cracking that surf green causes on the one hand, reduce the cracking that tabasheer causes on the other hand, and, owing to eliminating a part of surf green, groove on tabasheer and/or the degree of depth of eyelet can reduce, more wide in range product appearance needs can be met, thus, decrease the impact on the surface quality of the bamboo board after launching of eyelet and/or groove, even if the part with eyelet and/or groove is removed by follow-up needs, the material thickness removed is less, thus decrease waste of material, increase the thickness of bamboo board.
And because surf green is positioned at thick bamboo tube wall skin, be therefore easy to remove, be especially easy to mechanization and remove, processing is simple, and the thickness of the surf green of removal easily controls, and surface quality is good, goes blue or green efficiency high.Meanwhile, expansion before or on tabasheer, process groove and/or eyelet in expansion process, greatly reducing difficulty of processing, saved material, be suitable for large-scale production, is a kind of bamboo wood method of deploying technique of complete novelty.Especially, advantageously, groove and/or eyelet in the process launched (while namely launching) process, such as, launch to utilize the double wedge on roller surface to process groove and/or eyelet with the roller of surface with double wedge simultaneously, can enhance productivity further and product percent of pass.
To sum up, one object of the present invention is to propose a kind of bamboo wood method of deploying, by this bamboo wood method of deploying, bamboo wood is easier to soften, and the processing of bamboo wood before launching is simple, can effectively reduce or avoid the cracking of bamboo wood in expansion process, improve the quality of the bamboo board after expansion, and technique is simple, yield rate and qualification rate high.
It is to be appreciated that in describing the invention, " removal tabasheer " refers to from the inner surface of bamboo wood and removes certain thickness material, in other words, removes certain thickness bamboo wood from tabasheer side.
In the present invention, term " expansion " should make broad understanding, such as, comprise and use the expansion equipment of such as roller, flat board or expansion mould by bamboo wood (such as thick bamboo tube, or thick bamboo tube cuts the multiple bamboo blocks be divided into vertically) be pressed into substantially flat bamboo board, or bamboo wood generate still had the bamboo board of certain radian with such as roller or the expansion equipment that launches mould and then with the flattening equipment of such as hot press or cold press, the bamboo wood still with certain radian be pressed into substantially flat bamboo board, therefore, be deployed in this area and also can be called flattening.
In order to understand the present invention better, in describing the invention, bamboo wood is launched to be divided into three phases: before expansion; In expansion process; After expansion.The stage before not having with such as unwind roll or expansion mould press-stretched bamboo wood is referred to before expansion; Refer to such as unwind roll in expansion process or launch mould by the stage of the bamboo board of bamboo wood press-stretched Cheng Ping, or with such as unwind roll or launch mould bamboo wood press-stretched become still to have certain radian bamboo board, then use the flattening equipment of such as hot press or cold press the bamboo board with certain radian to be pressed into the stage of substantially flat bamboo board; Refer to such as unwind roll after flattening or launch mould by the stage after the bamboo board of bamboo wood press-stretched Cheng Ping, or with such as unwind roll or launch mould bamboo wood press-stretched become still to have certain radian bamboo board, then use the flattening equipment of such as hot press or cold press the bamboo board with certain radian to be pressed into stage after substantially flat bamboo board.
Here, thick bamboo tube also should make broad understanding, and thick bamboo tube can be whole bamboo, also can be the section whole bamboo being cut into predetermined length.
Summary of the invention
The application proposes the understanding of the following problem existed in the following fact and prior art and discovery based on inventor:
In description of the invention, cracking refers to that such as through-thickness runs through thick bamboo tube along the axially longer of thick bamboo tube and/or crackle that through-thickness is darker, thus impact launch after the crackle that uses of bamboo board.
According to the bamboo wood method of deploying of the embodiment of the present invention, comprise the surf green at least partially and the tabasheer retaining described thick bamboo tube of removing thick bamboo tube; Described thick bamboo tube set out along at least one through axial slits of the axis of described thick bamboo tube; Softening described thick bamboo tube; The inner surface of described thick bamboo tube processes groove and/or eyelet; With launch softening after, eliminate surf green at least partially and the thick bamboo tube remaining tabasheer to obtain the bamboo board launched.
According to the bamboo wood method of deploying of the embodiment of the present invention, cracking is few, and yield rate is high, saves material, launches operation simple.
Preferably, while the described thick bamboo tube of expansion, on the inner surface of described thick bamboo tube, described groove and/or eyelet is processed.
Preferably, launch described thick bamboo tube and on the inner surface of described thick bamboo tube, process groove and/or eyelet utilizes paired pressure roller to carry out simultaneously, the surface of a pressure roller in wherein said paired pressure roller is provided with the double wedge forming described groove and/or eyelet on the inner surface at described thick bamboo tube.
Preferably, the inner surface of described thick bamboo tube is only formed the multiple described eyelet be spaced apart from each other.
Preferably, the inner surface of described thick bamboo tube is only formed the multiple described groove be spaced apart from each other.
Preferably, the length direction of described groove is crossing with the axis of described thick bamboo tube.
Preferably, the inner surface of described thick bamboo tube processes groove and/or eyelet after softening carried out before expansion.
Preferably, the inner surface of described thick bamboo tube processes groove and/or eyelet to carry out before softening.
Preferably, described groove and/or eyelet extend or extend in the bamboo meat of described thick bamboo tube from the tabasheer of described thick bamboo tube in the tabasheer of described thick bamboo tube.
Preferably, the surf green at least partially removing described thick bamboo tube is remove surf green along the continuously axial of described thick bamboo tube and along the circumferential compartment of terrain of described thick bamboo tube.
Preferably, the surf green at least partially removing described thick bamboo tube be along described thick bamboo tube circumference continuously and along described thick bamboo tube axially spaced-apart remove surf green.
Preferably, the surf green at least partially removing described thick bamboo tube is process away blue or green groove at the outer surface of described thick bamboo tube.
Preferably, blue or green groove is gone to extend along the axis of described thick bamboo tube or circumference described in.
Preferably, blue or green groove is gone to extend along the axial screw of described thick bamboo tube described in.
Preferably, bamboo wood method of deploying according to the present invention also comprises and removes the skin of predetermined thickness from the outer surface of the bamboo board after launching and/or remove the internal layer of predetermined thickness from the inner surface of the bamboo board after launching.
Preferably, bamboo wood method of deploying according to the present invention is also comprised described skin and/or internal layer and is removed by planing or milling.
Preferably, bamboo wood method of deploying according to the present invention also comprises the internal segment removing described thick bamboo tube and/or the acromere removing described thick bamboo tube.
Preferably, bamboo wood method of deploying according to the present invention also comprises described softening by be placed on by described thick bamboo tube in softening container and to send into saturated vapor and/or superheated steam carries out in described softening container.
Preferably, bamboo wood method of deploying according to the present invention also comprises the pressure of saturated vapor in described softening container and/or superheated steam is 0.6-1.8 MPa.
Preferably, bamboo wood method of deploying according to the present invention also comprises and describedly softening heat described thick bamboo tube by equipment such as poach, Steam Heating, heat-conducting oil heating, heating using microwave or high-frequency heating and carry out.
Preferably, the thickness that bamboo wood method of deploying according to the present invention also comprises the surf green of removal is 0.2-2 millimeter.
Preferably, bamboo wood method of deploying according to the present invention also comprises described thick bamboo tube and launches gradually.
Preferably, bamboo wood method of deploying according to the present invention also comprise described in expand into horizontal spreading, longitudinally to launch or oblique expansion.
Propose a kind of bamboo board according to the present invention, described bamboo board is obtained by above-mentioned bamboo wood method of deploying.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic flow sheet of bamboo wood method of deploying according to an embodiment of the invention.
Fig. 2 is the schematic flow sheet of bamboo wood method of deploying according to another embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to the accompanying drawings bamboo wood method of deploying according to the embodiment of the present invention is described.
As shown in Figure 1, the surf green at least partially and the tabasheer retaining described thick bamboo tube of removing thick bamboo tube is comprised according to the bamboo wood method of deploying of the embodiment of the present invention, described thick bamboo tube set out along at least one through axial slits of the axis of described thick bamboo tube, softening described thick bamboo tube, the inner surface of described thick bamboo tube processes groove and/or eyelet, launch softening after, eliminate surf green at least partially and the thick bamboo tube remaining tabasheer to obtain the bamboo board launched.
According to the bamboo wood method of deploying of the embodiment of the present invention, by removing a part of surf green and process groove with before launching or in expansion process on bamboo internal layer and/or eyelet combining, reduce the cracking that surf green causes on the one hand, reduce the cracking that tabasheer causes on the other hand, and, owing to eliminating a part of surf green, groove on bamboo internal layer and/or the degree of depth of eyelet can reduce, such as only be formed on tabasheer or extend to certain depth in bamboo meat a little, more wide in range product appearance needs can be met, thus, reduce the impact on the surface quality of the bamboo board after launching of eyelet and/or groove, even if the part with eyelet and/or groove is removed by follow-up needs, the material thickness removed is less, thus decrease waste of material, increase the thickness of bamboo board.
Here, the surf green at least partially removing thick bamboo tube should make broad understanding, can comprise the whole surf greens removing thick bamboo tube, also can comprise and remove a part of surf green.Removing whole surf green can be: the radial direction along thick bamboo tube removes the surf green of full depth and the surf green of the whole outer surface of thick bamboo tube is all removed; Or remove certain thickness surf green and the surf green of the whole outer surface of thick bamboo tube is all removed along the radial direction of thick bamboo tube; Or remove certain thickness surf green and the surf green of the whole outer surface of thick bamboo tube is removed a part along the radial direction of thick bamboo tube; Or remove the surf green of full depth but the surf green of the whole outer surface of thick bamboo tube is removed a part along the radial direction of thick bamboo tube.Be understandable that, even if remove whole surf greens of thick bamboo tube, due to the cross sectional shape of thick bamboo tube and the circle of non-critical, and change along the radial dimension of the axial thick bamboo tube of thick bamboo tube, the outer surface of therefore thick bamboo tube may leave the surf green that a part is not removed, this situation is still thought to remove whole surf green.In addition, the surf green at least partially removing described thick bamboo tube can remove surf green for the circumferential compartment of terrain axially continuously and along described thick bamboo tube along described thick bamboo tube, or along described thick bamboo tube circumference continuously and along described thick bamboo tube axially spaced-apart remove surf green.
Thick bamboo tube sets out and can carry out before softening thick bamboo tube along axial at least one the through axial slits of thick bamboo tube, also can carry out after softening thick bamboo tube.Preferably, thick bamboo tube sets out two axial slits respect to one another, thick bamboo tube to be divided into the two halves be mutually symmetrical.
Preferably, remove surf green to carry out, so that make to remove surf green with spending blue or green plant machinery before softening.Here, reservation tabasheer refers to does not remove certain thickness tabasheer along the radial direction of thick bamboo tube, but, it will be appreciated that, when carrying out other process to thick bamboo tube, such as, when removing the internal segment of thick bamboo tube, a part of tabasheer may be removed, this situation is still regarded as the tabasheer that do not eliminate, and namely remains complete tabasheer.
In a preferred embodiment of the invention, the surf green at least partially of thick bamboo tube is removed and the tabasheer retaining described thick bamboo tube is: the radial direction along thick bamboo tube removes certain thickness bamboo green layer and the surf green of the whole outer surface of thick bamboo tube is all removed; Retain complete tabasheer simultaneously.Thus, remove surf green with being convenient to mechanization, and retain complete tabasheer, namely before expansion and in expansion process, do not remove tabasheer, because tabasheer is at the inner surface of thick bamboo tube, not easily remove, therefore retain complete tabasheer and can simplify expansion operation.Here, the tabasheer that it should be understood that on the inner surface of thick bamboo tube processes groove and/or eyelet is not thought to remove tabasheer.
According to the preferred embodiment of the invention, the inner surface of described thick bamboo tube processes the while that groove and/or eyelet being and launching and carry out, in other words, launch to carry out with working groove and/or eyelet simultaneously.Thus, simplify the operation that bamboo wood launches, and expansion is effective, cracking occurs hardly, and yield rate improves greatly.
But be understandable that, the present invention is not limited to this.Alternatively, the inner surface of described thick bamboo tube processes groove and/or eyelet can carry out before expansion, such as, preferably, carried out after softening and before launching.Owing to processing groove and/or eyelet after softening, therefore, the processing of groove and/or eyelet is more prone to.Certainly, the processing of groove and/or eyelet also can be carried out before softening.
The inner surface of thick bamboo tube processes groove and/or eyelet comprise and process groove and eyelet at the inner surface of thick bamboo tube simultaneously, also only can process groove at the inner surface of thick bamboo tube, also only can process eyelet at the inner surface of thick bamboo tube.
Preferably, the groove processed at the inner surface of thick bamboo tube is multiple crossing with the axis (i.e. the length direction of thick bamboo tube) of thick bamboo tube, namely from the bamboo board after expansion, the length direction of groove and the length direction of thick bamboo tube not parallel, but to intersect each other, more preferably, groove is divided into two groups, two groups of grooves intersect each other, and more easily lead loose stress thus, not easy to crack.
In some embodiments of the invention, described groove and/or eyelet extend to certain thickness in the bamboo meat of described thick bamboo tube from described thick bamboo tube inner surface.Alternatively, described groove and/or eyelet also can only extend at tabasheer layer.
For example describes conveniently, process eyelet for the inner surface only at thick bamboo tube below and be described.
As mentioned above, preferably, while the described thick bamboo tube of expansion, on the inner surface of described thick bamboo tube, eyelet is processed.More preferably, launch described thick bamboo tube and on the inner surface of described thick bamboo tube, process groove and/or eyelet utilizes paired pressure roller to carry out simultaneously, the surface of a pressure roller in wherein said paired pressure roller is provided with the double wedge forming eyelet on the inner surface at described thick bamboo tube.In other words, paired pressure roller had both been used as the expansion equipment launching thick bamboo tube, was also used as the eyelet process equipment processing eyelet at the inner surface of thick bamboo tube, thus, further simplify the equipment and process needed for expansion.
Preferably, in some embodiments of the invention, the eyelet that thick bamboo tube inner surface is formed is spaced apart from each other and discrete distribution, can lead loose stress better thus, avoids cracking.Here, discrete distribution refers to that eyelet is not arranged at the inner surface of thick bamboo tube the row axially aligned along thick bamboo tube, such as, from the bamboo board launched, eyelet is not arranged in the row of alignment along the length direction of bamboo board, and the width along bamboo board is not arranged in the row of alignment.Alternatively, eyelet distributes alternately along the length direction of bamboo board, and distributes in the width direction interlaced with each otherly.
In other words, double wedge is discontinuous along the axial and circumferential of pressure roller on the surface of pressure roller, and is not arranged in circle or a multi-turn tooth of alignment along the circumference of pressure roller, and axis along pressure roller is not arranged in the double wedge that a line or multirow align.That is, double wedge distributes alternately along the circumference of pressure roller, and distributes alternately along the axis of pressure roller.
Certainly, be understandable that, when forming groove at the inner surface of thick bamboo tube, double wedge can be continuous along the circumference of pressure roller, and such as, axial screw along pressure roller extends.
In one embodiment of the invention, the surf green at least partially removing described thick bamboo tube is process away blue or green groove at the outer surface of described thick bamboo tube.Described go blue or green groove can along the axis of described thick bamboo tube or circumference extend.Alternatively, blue or green groove is gone to extend along the axial screw of described thick bamboo tube described in.
Preferably, also comprise according to the bamboo wood method of deploying of the embodiment of the present invention and remove the skin of predetermined thickness from the outer surface of the bamboo board after launching, such as when removing a part of surf green before launching, the outer surface of bamboo board after deployment leaves a part of surf green, according to the occasion needs of application, can remove the skin of predetermined thickness from the outer surface of the bamboo board after launching, thus the surf green that will stay is removed.Preferably, also comprise according to the bamboo wood method of deploying of the embodiment of the present invention and remove the internal layer of predetermined thickness from the inner surface of the bamboo board after launching.As mentioned above, owing to being processed with eyelet and/or groove at the inner surface of thick bamboo tube, therefore, the inner surface of bamboo board after deployment can leave the vestige of eyelet and/or groove, according to the needs of application scenario, the internal layer of predetermined thickness can be removed from the inner surface of bamboo board, thus can't see eyelet and/or groove.Described skin and internal layer can be removed by planing or milling.
Preferably, the internal segment removing described thick bamboo tube and/or the acromere removing described thick bamboo tube is also comprised according to the bamboo wood method of deploying of the embodiment of the present invention.
In an embodiment of the present invention, the softening of thick bamboo tube can by be placed on described thick bamboo tube in softening container and to send into saturated vapor and/or superheated steam carries out in described softening container.Such as, the saturated vapor in described softening container and/or the pressure of superheated steam are 0.6-1.8 MPa.
Alternatively, thick bamboo tube softening also can be heated described thick bamboo tube by equipment such as poach, Steam Heating, heat-conducting oil heating, heating using microwave or high-frequency heating and be carried out.
According to enforcement of the present invention, preferably, before expansion, remove whole surf greens, such as, the thickness of the bamboo green layer of removal can be 0.2-2 millimeter.Present inventor finds, by removing the surf green of 0.2-2 millimeter, can ensure that the hardest part outside by thick bamboo tube is removed, and reducing removal amount as far as possible, reducing waste of material, ensure that simultaneously and occur crackle after avoiding flattening, and be conducive to softening.
In one embodiment of the invention, the thick bamboo tube after described removal surf green progressively launches.Such as, the pressure roller of different-diameter is utilized progressively to launch thick bamboo tube.
More specifically, expand into horizontal spreading, longitudinally expansion or oblique expansion, here, so-called horizontal spreading refers to the axial consistent of the axis of pressure roller in expansion process and described thick bamboo tube, longitudinally launch to refer to that in expansion process, the axis of pressure roller and the axis of thick bamboo tube are orthogonal, oblique expansion refers to that in expansion process, the axis of pressure roller becomes predetermined angular with the axis of thick bamboo tube, and this angle is greater than 0 and is less than 90 degree.In longitudinal expansion process, the roller of different length can be used to launch thick bamboo tube gradually.
According to the bamboo wood method of deploying of the embodiment of the present invention, by expansion before remove at least partially surf green and retain tabasheer, and expansion before or process eyelet and/or groove at the inner surface of thick bamboo tube in expansion process, reduce expansion difficulty, decrease waste of material, and the cracking of the bamboo board launched reduces, qualification rate improves.And, by removing surf green at least partially, being conducive to the softening of thick bamboo tube, further increasing expansion effect.
It will be appreciated that, execution sequence according to the step in the bamboo wood method of deploying of the embodiment of the present invention is not particularly limited, and preferred step execution sequence is: remove a part of surf green of internal segment → remove → crack → soften → launch (to form eyelet and/or groove at the inner surface of thick bamboo tube launching while.Embodiments of the invention are not limited to this, and such as, execution sequence can be: whole surf green that cracks → remove → go internal segment → softening → expansion (to form eyelet and/or groove at the inner surface of thick bamboo tube while launching; Remove a part of surf green of internal segment → remove → soften → crack → form eyelet and/or groove launches → launches at the inner surface of thick bamboo tube; Soften → go that a part of surf green of internal segment → remove → cracking → launching (forms eyelet and/or groove at the inner surface of thick bamboo tube while launching; Remove surf green → go internal segment → crack → soften → launches and (while launching, form eyelet and/or groove → to shoot off the skin of predetermined thickness from the shoot off internal layer of predetermined thickness → from the outer surface of the bamboo board after expansion of the inner surface of the bamboo board after expansion at the inner surface of thick bamboo tube.
Below with reference to Fig. 2, the bamboo wood method of deploying according to the present invention's preferred exemplary is described.
As shown in Figure 2, first, internal segment and the acromere of thick bamboo tube is removed.Then, utilization removes the surf green at least partially of thick bamboo tube and the tabasheer of reservation thick bamboo tube with going blue or green plant machinery.Then, thick bamboo tube is offered two axial slits, two axial slits toward each other, thick bamboo tube is split into two halves.Then, the thick bamboo tube separated is placed in softening container softens.After softening, the paired pressure roller one of them pressure roller with double wedge is utilized to launch thick bamboo tube.Preferably, progressively launching thick bamboo tube, be understandable that, when progressively launching thick bamboo tube, multipair pressure roller can be used to launch, but only have double wedge for a pressure roller in first pair of pressure roller launching first, follow-up paired pressure roller can not arrange double wedge.For the ease of launching, annular knurl can be formed on the surface of pressure roller.
Preferably, after utilizing pressure roller to launch thick bamboo tube, if thick bamboo tube still has certain radian, can utilize hot press or cold press that the bamboo board of expansion is pressed into flat bamboo board further.
According to the present invention, a kind of bamboo board utilizing above-mentioned bamboo wood method of deploying to launch also is proposed.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (24)
1. a bamboo wood method of deploying, is characterized in that, comprises the following steps:
Remove the surf green at least partially of thick bamboo tube and retain the tabasheer of described thick bamboo tube;
Described thick bamboo tube set out along at least one through axial slits of the axis of described thick bamboo tube;
Softening described thick bamboo tube;
The inner surface of described thick bamboo tube processes groove and/or eyelet; With
Launch softening after, eliminate surf green at least partially and the thick bamboo tube remaining tabasheer to obtain the bamboo board launched.
2. bamboo wood method of deploying according to claim 1, is characterized in that, while the described thick bamboo tube of expansion, process described groove and/or eyelet on the inner surface of described thick bamboo tube.
3. bamboo wood method of deploying according to claim 2, it is characterized in that, launch described thick bamboo tube and on the inner surface of described thick bamboo tube, process groove and/or eyelet utilizes paired pressure roller to carry out simultaneously, the surface of a pressure roller in wherein said paired pressure roller is provided with the double wedge forming described groove and/or eyelet on the inner surface at described thick bamboo tube.
4. bamboo wood method of deploying according to claim 3, is characterized in that, the inner surface of described thick bamboo tube is only formed the multiple described eyelet be spaced apart from each other.
5. bamboo wood method of deploying according to claim 3, is characterized in that, the inner surface of described thick bamboo tube is only formed the multiple described groove be spaced apart from each other.
6. bamboo wood method of deploying according to claim 5, it is characterized in that, the length direction of described groove is crossing with the axis of described thick bamboo tube.
7. bamboo wood method of deploying according to claim 1, is characterized in that, the inner surface of described thick bamboo tube processes groove and/or eyelet after softening to carry out before expansion.
8. bamboo wood method of deploying according to claim 1, is characterized in that, the inner surface of described thick bamboo tube processes groove and/or eyelet carried out before softening.
9. bamboo wood method of deploying according to any one of claim 1-8, is characterized in that, described groove and/or eyelet extend or extend in the bamboo meat of described thick bamboo tube from the tabasheer of described thick bamboo tube in the tabasheer of described thick bamboo tube.
10. bamboo wood method of deploying according to any one of claim 1-9, is characterized in that, the surf green at least partially removing described thick bamboo tube is remove surf green along the continuously axial of described thick bamboo tube and along the circumferential compartment of terrain of described thick bamboo tube.
11. according to any one of claim 1-9 bamboo wood method of deploying, it is characterized in that, the surf green at least partially removing described thick bamboo tube be along described thick bamboo tube circumference continuously and along described thick bamboo tube axially spaced-apart remove surf green.
12. according to any one of claim 1-9 bamboo wood method of deploying, it is characterized in that, the surf green at least partially removing described thick bamboo tube is process away blue or green groove at the outer surface of described thick bamboo tube.
13., according to bamboo wood method of deploying described in claim 12, is characterized in that, described in go blue or green groove along the axis of described thick bamboo tube or circumference extend.
14., according to bamboo wood method of deploying described in claim 12, is characterized in that, described in go blue or green groove to extend along the axial screw of described thick bamboo tube.
15. according to any one of claim 1-14 bamboo wood method of deploying, it is characterized in that, also comprise and remove the skin of predetermined thickness from the outer surface of the bamboo board after launching and/or remove the internal layer of predetermined thickness from the inner surface of the bamboo board after launching.
16., according to bamboo wood method of deploying described in claim 15, is characterized in that, described skin and/or internal layer are removed by planing or milling.
17. according to any one of claim 1-16 bamboo wood method of deploying, it is characterized in that, also comprise the internal segment removing described thick bamboo tube and/or the acromere removing described thick bamboo tube.
18. according to any one of claim 1-17 bamboo wood method of deploying, it is characterized in that, described softening by described thick bamboo tube to be placed in softening container and to send into saturated vapor and/or superheated steam carries out in described softening container.
19., according to bamboo wood method of deploying described in claim 18, is characterized in that, the saturated vapor in described softening container and/or the pressure of superheated steam are 0.6-1.8 MPa.
20. according to any one of claim 1-17 bamboo wood method of deploying, it is characterized in that, describedly softening heat described thick bamboo tube by equipment such as poach, Steam Heating, heat-conducting oil heating, heating using microwave or high-frequency heating and carry out.
21. according to any one of claim 1-20 bamboo wood method of deploying, it is characterized in that, the thickness of the surf green of removal is 0.2-2 millimeter.
22. according to any one of claim 1-21 bamboo wood method of deploying, it is characterized in that, described thick bamboo tube launches gradually.
23., according to bamboo wood method of deploying described in claim 22, is characterized in that, described in expand into horizontal spreading, longitudinally to launch or oblique expansion.
24. 1 kinds of bamboo boards, is characterized in that, described bamboo board is obtained by the bamboo wood method of deploying such as according to any one of claim 1-23.
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| CN105235030A (en) * | 2015-10-22 | 2016-01-13 | 吴善方 | Whole bamboo flattening method and processing equipment |
| CN105751334A (en) * | 2016-04-01 | 2016-07-13 | 南京林业大学 | Efficient continuous crackless flattening method of bamboo |
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| CN109333703A (en) * | 2018-10-19 | 2019-02-15 | 南京林业大学 | A kind of production method flattening sliced bamboo veneer |
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| CN110587737A (en) | 2019-12-20 |
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