CN108481471A - A kind of regeneration recombination bamboo plywood and its manufacturing method - Google Patents

A kind of regeneration recombination bamboo plywood and its manufacturing method Download PDF

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Publication number
CN108481471A
CN108481471A CN201810379897.1A CN201810379897A CN108481471A CN 108481471 A CN108481471 A CN 108481471A CN 201810379897 A CN201810379897 A CN 201810379897A CN 108481471 A CN108481471 A CN 108481471A
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China
Prior art keywords
bamboo
layer
old
regeneration
sawing
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CN201810379897.1A
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Chinese (zh)
Inventor
徐漫平
于海霞
周侃侃
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Zhejiang Provincial Forest Product Quality Inspection Station (zhejiang Forest Seedling Quality Supervision And Inspection Station)
Zhejiang Academy of Forestry
Original Assignee
Zhejiang Provincial Forest Product Quality Inspection Station (zhejiang Forest Seedling Quality Supervision And Inspection Station)
Zhejiang Academy of Forestry
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Application filed by Zhejiang Provincial Forest Product Quality Inspection Station (zhejiang Forest Seedling Quality Supervision And Inspection Station), Zhejiang Academy of Forestry filed Critical Zhejiang Provincial Forest Product Quality Inspection Station (zhejiang Forest Seedling Quality Supervision And Inspection Station)
Priority to CN201810379897.1A priority Critical patent/CN108481471A/en
Publication of CN108481471A publication Critical patent/CN108481471A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284Application of adhesive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/0004Cutting, tearing or severing, e.g. bursting; Cutter details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/162Cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/164Drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B2038/0052Other operations not otherwise provided for
    • B32B2038/0064Smoothing, polishing, making a glossy surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/164Drying
    • B32B2038/168Removing solvent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04Impregnation, embedding, or binder material
    • B32B2260/046Synthetic resin

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

The present invention discloses a kind of regeneration recombination bamboo plywood and its manufacturing method, it is made of polylith using the old lath that the width of old lath is re-assemblied as thickness direction including the bamboo mat layer symmetrical above and below mated formation, bamboo curtain splint layer and the internal wide old plate core layer of sawing, the wide old plate core layer of sawing.Its manufacturing method includes sorting, pretreatment, old lath sawing, mats formation and recombinate processing.Regeneration recombination bamboo plywood in the present invention and its manufacturing method, using waste and old, discarded bamboo glue pattern plate or bamboo plywood as raw material, by selecting, sawing, the processes such as sanding, slat units are made in old plate, by its former board direction and the recombination perpendicular close-packed arrays of plate face, composition upper and lower surface is the plate core of fresh face, is formed up and down coated with bamboo curtain splint, bamboo mat and through hot pressing, bamboo plywood or bamboo glued membrane plate is made to be regenerated.The bamboo plywood for regenerating recombination newly organizes design by structure, and longitudinal strength is more than new plate glued board, and processing cost substantially reduces, and turns waste into wealth, and fully utilizes resource.

Description

A kind of regeneration recombination bamboo plywood and its manufacturing method
Technical field
The present invention relates to bamboo plywood, bamboo wood manufacturing technology fields, more particularly to a kind of regeneration Recombined bamboo gluing Plate and its manufacturing method.
Background technology
Bamboo plywood, bamboo wood material be tough and tensile, moisture-proof corrosion resistant, heat-resisting cold-resistant, beautiful texture, has plain, simple National style, hardness and intensity are far above timber, and purposes is very extensive, such as platform floor, building template, indoor ceiling Material, indoor furniture decorations etc., are particularly suitable for outdoor high strength place, like by consumer.Traditional bamboo plywood Staggeredly mated formation using bamboo curtain splint bamboo mat or bamboo curtain splint, bamboo curtain splint bamboo mat is difficult to detach after sizing, therefore plank it is waste and old after be difficult to recycle. And the felling cost of fresh bamboo wood is higher and higher, and processing cost is caused constantly to be promoted.There is surface mill by use in waste and old plank Damage, come unglued even fracture, layering etc. cause performance to decline, but its mechanical strength loss it is smaller, many old bamboo plywoods or Bamboo wood still keeps higher-strength.Due to there is no recycling approach, enterprise to cause high-quality resource unrestrained essentially as fuel combustion Take.
Invention content
The object of the present invention is to provide a kind of regeneration recombination bamboo plywood and its manufacturing methods, to solve the above-mentioned prior art There are the problem of, so that bamboo plywood or bamboo glued membrane plate is regenerated, regeneration recombination bamboo plywood physical and mechanical property reach production The requirement of product standard, processing cost substantially reduces, and turns waste into wealth, and fully utilizes resource.
To achieve the above object, the present invention provides following schemes:The present invention provides a kind of regeneration recombination bamboo plywood, packet The old plate layer of bamboo mat layer, bamboo curtain splint layer and wide sawing of glue connection is included, the wide sawing old plate layer both sides are symmetrically laid with institute successively Bamboo curtain splint layer and bamboo mat layer are stated, the wide old plate layer of sawing is re-assemblied by polylith using the width of old lath as thickness direction old Lath is constituted.
Optionally, the old lath of the old plate layer of the wide sawing is waste and old, the discarded bamboo glue pattern plate after wide sawing or bamboo Glued board.
Optionally, the bamboo mat layer uses resin impregnating bamboo mat layer, the bamboo curtain splint layer to use resin impregnating bamboo Curtain layer.
Optionally, bracing means is installed on the outside of the regeneration recombination bamboo plywood.
Optionally, the number of plies of the bamboo mat layer and bamboo curtain splint layer is more than or equal to 2.
The present invention also provides a kind of manufacturing methods of regeneration recombination bamboo plywood, and it is glued to be applied to above-mentioned regeneration Recombined bamboo Plate includes the following steps:(1) waste and old plate core primary election:It as raw material and is carried out preliminary using waste and old, discarded bamboo glue pattern plate or bamboo plywood Screening and classification (criteria for classification presses table 1 in this specification);(2) waste and old plate core pretreatment:Sanding surface is carried out to primary election raw material, The foreign matters such as spots and metal such as surface irregularities, dust are removed, four side damaged portion saw of the raw material is removed;(3) lath sawing:It is right Pretreated waste and old plate core carries out wide sawing, sanding, obtains the equal wide laths with fresh face;(4) lath is glued:It is right The wide old plate layer of sawing carries out four sides sizing using spraying method, and the adhesive is phenolic resin;(5) bamboo curtain splint bamboo mat layer is applied Glue:Bamboo curtain splint layer, bamboo mat layer are prepared in a conventional manner, and dipping and gluing is carried out using phenolic resin;(6) drying is displayed:It is right Raw material after sizing carries out low temperature drying processing, evaporates extra moisture;(7) plate core is mated formation:By the old lath after wide sawing Mat formation by thickness direction recombination of its width;(8) hot pressing is recombinated:Gradually mat formation from top to bottom bamboo mat layer, bamboo curtain splint layer, wide sawing Lath layer, bamboo curtain splint layer, bamboo mat layer carry out hot-forming into press;(9) it post-processes:Four sides slicing is carried out to hot pressing slab, is fallen Angle, sanding subsequent processing.If specific use needs, it can be recombinated in molding regeneration and carry out reinforcing bearing on the outside of bamboo plywood Reason.
Optionally, the preliminary screening during the sorting of step (1) be to skin lamination, rotten area be more than 20% it is useless Old bamboo board will reject, and be then grouped according to the specification of raw material;Recombination processing in step (4)-(8), processing Process is that the edge of raw material is first carried out sawing, removal, exposes internal fresh face, hot pressing is then carried out after mating formation.
Optionally, in step (4) in bamboo mat layer, bamboo curtain splint layer and the old plate layer sizing pavement process of wide sawing, bamboo mat sizing 23-30%, bamboo curtain splint resin added 12-15% are measured, the wide old plate layer sizing sizing of sawing uses glue spraying mode, resin added 2.2kg/ m2
Optionally, the hot-forming parameter in step (7) is 150-180 DEG C of hot pressing temperature, pressure 2.5-3.0MPa, heat Time 20-30min is pressed, also needs to carry out chamfering and sanding surface again to regeneration recombination bamboo plywood after carrying out hot pressing, saw side, Finally consolidation process can be carried out according to product purpose needs with steel framework etc..
Optionally, thickness is 2.5-4mm, the wide old plate layer of sawing and bamboo curtain splint layer after the regeneration Recombined bamboo plywood hot-pressing Thickness relationship with bamboo mat layer is:The thickness of the wide old plate layer of sawing is that the integral thickness that the regeneration recombinates bamboo plywood subtracts 1.5-3mm;Or increase the number of plies of the bamboo mat layer and bamboo curtain splint layer, reduce the width of the wide old plate layer of sawing.
The present invention achieves following technique effect compared with the existing technology:
Regeneration recombination bamboo plywood in the present invention and its manufacturing method, with waste and old, discarded bamboo glue pattern plate or bamboo plywood For raw material, by selecting, to process and carry out the old plate of wide sawing be core for sawing, the processes such as sanding, is gone forward side by side up and down coated with bamboo mat Row hot pressing forms, and waste and old bamboo board is made to be regenerated, and the physical and mechanical property of regeneration recombination bamboo plywood reaches Related product mark Alignment request, processing cost substantially reduce, and turn waste into wealth, and fully utilize resource.Enterprise can exchange old for new, and reduce production Cost.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the overall structure diagram of regeneration recombination bamboo plywood in the present invention;
Wherein, 1 bamboo mat layer;2 bamboo curtain splint layers;The 3 wide old plate core layers of sawing.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of regeneration recombination bamboo plywood and its manufacturing methods, to solve the above-mentioned prior art There are the problem of, so that bamboo plywood or bamboo glued membrane plate is regenerated, regeneration recombination bamboo plywood physical and mechanical property reach production The requirement of product standard, processing cost substantially reduces, and turns waste into wealth, and fully utilizes resource.
Regeneration provided by the invention recombinates bamboo plywood, including the bamboo mat layer of glue connection, bamboo curtain splint layer and the old plate of wide sawing Layer, wide sawing old plate layer both sides are symmetrically laid with bamboo curtain splint layer and bamboo mat layer successively, and the wide old plate layer of sawing is by polylith with old lath Width be that the old lath that re-assemblies of thickness direction is constituted.Regeneration recombination bamboo plywood is done using old plate layer, is fully utilized Resource reduces the wasting of resources, while can install steel framework additional to the outside of regeneration recombination bamboo plywood to enhance the globality of useless plate layer Can, it is suitble to high intensity field of employment demand.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is described in further detail.
It please refers to Fig.1, wherein Fig. 1 is the overall structure diagram of regeneration recombination bamboo plywood in the present invention.
As shown in Figure 1, the present invention provides a kind of regeneration recombination bamboo plywood, including the bamboo mat layer 1 symmetrical above and below mated formation, bamboo Curtain layer 2 and the internal wide old plate core layer 3 of sawing, wide old 3 both sides of plate core layer of sawing are symmetrically laid with bamboo curtain splint layer 2 and bamboo mat layer successively 1, bamboo curtain splint bamboo mat, which is symmetrically mated formation, to be played the role of dimensionally stable and increases surface paintability and decorative effect, and bamboo curtain splint layer 2 is indulged The mechanical strength of regeneration recombination glued board can be increased to structure.The wide old plate core layer 3 of sawing is with the width of old lath by polylith The old lath that thickness direction re-assemblies is constituted.The old lath of the old plate core layer of wide sawing 3 is waste and old, discarded after wide sawing Bamboo glue pattern plate or bamboo plywood.Bamboo mat layer 1 uses resin impregnating, bamboo curtain splint layer 2 to use resin impregnating.Regenerate Recombined bamboo The outside of glued board can install fixed frame.The number of plies of bamboo mat layer 1 and bamboo curtain splint layer 2, which is respectively greater than, is equal to 2.
The present invention also provides a kind of manufacturing methods of regeneration recombination bamboo plywood, and it is glued to be applied to above-mentioned regeneration Recombined bamboo Plate includes the following steps:
(1) waste and old plate core primary election:It is raw material to waste and old, discarded bamboo glue pattern plate or bamboo plywood and carries out preliminary screening and divide Class (criteria for classification presses table 1 in this specification);(2) waste and old plate core pretreatment:Sanding surface is carried out to primary election raw material, removes surface The foreign matters such as the spots such as sundries, dust and metal remove four side damaged portion saw of the raw material;(3) lath sawing:After pretreatment Waste and old plate core carry out wide sawing, sanding, obtain the equal wide laths with fresh face;(4) lath is glued:To wide sawing Old plate core layer 3 carries out four sides sizing using spraying method, and the adhesive is phenolic resin;(5) bamboo curtain splint, the sizing of bamboo mat layer:Bamboo Curtain layer 2, bamboo mat layer 1 are prepared in a conventional manner, and dipping and gluing is carried out using phenolic resin;(6) drying is displayed:To sizing Raw material afterwards carries out low temperature drying processing, evaporates extra moisture;(7) plate core is mated formation:By the old lath after wide sawing with it Width is that thickness direction recombination is mated formation;(8) hot pressing is recombinated:Gradually mat formation from top to bottom bamboo mat layer 1, bamboo curtain splint layer 2, wide sawing plate Sandwich layer 3, bamboo curtain splint layer 2, bamboo mat layer 1 carry out hot-forming into press;(9) it post-processes:Four side moulder is carried out to hot pressing slab It cuts, chamfering, sanding subsequent processing.If specific use needs, it can be recombinated in molding regeneration and carry out strengthening admittedly on the outside of bamboo plywood Fixed processing.
Preliminary screening during sorting is that the gluing that serious damage, layering or rotten degree are more than 20% occur to surface Plate will reject, and be then grouped according to the specification of raw material;It recombinates in process, process is first by raw material Edge carries out sawing, removal, exposes internal fresh face, the then hot pressing again after mating formation.
It also needs to carry out chamfering and sanding surface again to regeneration recombination bamboo plywood after carrying out hot pressing, saw side, finally may be used Recombination bamboo plywood four side is fixed according to product purpose and Seal treatment.
Thickness is 2.5-4mm after regenerating Recombined bamboo plywood hot-pressing, and the width of the old plate layer of wide sawing 3 will not subtract after hot pressing Few, the thickness relationship of the wide old plate layer 3 of sawing and bamboo curtain splint layer 2 and bamboo mat layer 1 is:The thickness of the old plate layer of wide sawing 3 is regeneration The integral thickness of recombination bamboo plywood subtracts 1.5-3mm;Or the appropriate number of plies for increasing bamboo mat layer 1 and bamboo curtain splint layer 2, reduce wide sawing The width of old plate layer 3.
Old lath recombination bamboo plywood is there are surface irregularity, the phenomenon that centre easy tos produce fracture.In order to increase intensity And surface smoothness, it can suitably increase the number of bamboo curtain splint layer 2.In addition old lath recombination bamboo plywood using plus steel framework processing after structure more Add stabilization.
Waste and old bamboo plywood, bamboo glued membrane plate gauge lattice and the quality recycled is irregular, to ensure that it is glued that old plank regenerates bamboo Plate quality first has to be selected, rejected and classified, and it is more than 20% serious damage, layering or rotten degree occur to surface Waste and old bamboo board will reject, and then to satisfactory waste and old bamboo plywood, bamboo glued membrane plate according to specification divide Group carries out sanding, the spots such as removal wash cement, dust to surface layer.The classification of old bamboo board is specifically selected to be shown in Table 1
1 old bamboo board quality classification of table
Surface fracture Edge breakage It is rotten It comes unglued on surface layer Layering Fracture Flexural deformation
Quality requirement Allow Allow ≤ the gross area 20% Allow ≤ the gross area 30% Allow Do not allow
Performance test
According to JG/T 156-2004《Bamboo plywood form》Or JG/T 428-2014《Steel framework combines bamboo plywood form》 Regulation tests plank, and is compared with conventional bamboo plywood form.Specifically it is shown in Table 2.
2 new and old plate of table is compared with performance
Static bending strength, elasticity modulus and the impact strength that regeneration recombinates bamboo plywood are larger, and thickness swelling rate is smaller, Standard requirement can be met.
It should be noted that the regeneration recombination bamboo plywood in the present invention and its manufacturing method, as long as with the present invention The basic principle for regenerating Recombined bamboo plywood making method is identical, is only the simple additions and deletions or replacement of some step, also exists In protection scope of the present invention.
Specific case is applied in the present invention, and principle and implementation of the present invention are described, above example Illustrate the method and its core concept for being merely used to help understand the present invention;Meanwhile for those of ordinary skill in the art, according to According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification It should not be construed as limiting the invention.

Claims (10)

1. a kind of regeneration recombinates bamboo plywood, it is characterised in that:Bamboo mat layer, bamboo curtain splint layer including glue connection and the old plate of wide sawing Layer, the wide sawing old plate layer both sides are symmetrically laid with the bamboo curtain splint layer and bamboo mat layer successively, the wide old plate layer of sawing by Polylith is constituted using the old lath that the width of old lath is re-assemblied as thickness direction.
2. regeneration according to claim 1 recombinates bamboo plywood, it is characterised in that:The old plate of the old plate layer of wide sawing Item is waste and old, the discarded bamboo glue pattern plate or bamboo plywood after wide sawing.
3. regeneration according to claim 1 recombinates bamboo plywood, it is characterised in that:The bamboo mat layer is soaked using phenolic resin Stain bamboo mat layer, the bamboo curtain splint layer use resin impregnating bamboo curtain splint layer.
4. regeneration according to claim 1 recombinates bamboo plywood, it is characterised in that:Outside the regeneration recombination bamboo plywood Side is equipped with bracing means.
5. regeneration according to claim 1 recombinates bamboo plywood, it is characterised in that:The number of plies of the bamboo mat layer and bamboo curtain splint layer More than or equal to 2.
6. a kind of manufacturing method of regeneration recombination bamboo plywood, is applied to the regeneration recombination described in any one of claim 1-5 Bamboo plywood, it is characterised in that:
Include the following steps:(1) waste and old plate core primary election:It as raw material and is carried out just using waste and old, discarded bamboo glue pattern plate or bamboo plywood Step screening and classification (criteria for classification presses table 1 in this specification);(2) waste and old plate core pretreatment:Surface sand is carried out to primary election raw material Light, the foreign matters such as spots and metal such as removal surface irregularities, dust remove four side damaged portion saw of the raw material;(3) slat saw Solution:Wide sawing, sanding are carried out to pretreated waste and old plate core, obtain the equal wide laths with fresh face;(4) lath is applied Glue:Four sides sizing is carried out using spraying method to the old plate layer of wide sawing, the adhesive is phenolic resin;(5) bamboo curtain splint bamboo mat Layer sizing:Bamboo curtain splint layer, bamboo mat layer are prepared in a conventional manner, and dipping and gluing is carried out using phenolic resin;(6) it displays dry It is dry:Low temperature drying processing is carried out to the raw material after sizing, evaporates extra moisture;(7) plate core is mated formation:It will be old after wide sawing Lath is mated formation by thickness direction recombination of its width;(8) hot pressing is recombinated:Gradually mat formation from top to bottom bamboo mat layer, bamboo curtain splint layer, wide Sawing lath layer, bamboo curtain splint layer, bamboo mat layer carry out hot-forming into press;(9) it post-processes:Four side moulder is carried out to hot pressing slab It cuts, chamfering, sanding subsequent processing.If specific use needs, it can be recombinated in molding regeneration and carry out strengthening admittedly on the outside of bamboo plywood Fixed processing.
7. the manufacturing method of Regenerated plate recombination bamboo plywood according to claim 6, it is characterised in that:The choosing of step (1) Preliminary screening during material is rejected to the waste and old bamboo board that skin lamination, rotten area are more than 20%, then according to original The specification of material is grouped;Recombination processing in step (4)-(8), process are first to saw the edge of raw material Solution, removal expose internal fresh face, hot pressing are then carried out after mating formation.
8. the manufacturing method of regeneration recombination bamboo plywood according to claim 6, it is characterised in that:Bamboo mat in step (4) In layer, bamboo curtain splint layer and the old plate layer sizing pavement process of wide sawing, bamboo mat resin added 23-30%, bamboo curtain splint resin added 12-15%, The wide old plate layer sizing sizing of sawing uses glue spraying mode, resin added 2.2kg/m2
9. the manufacturing method of regeneration recombination bamboo plywood according to claim 6, it is characterised in that:Heat in step (7) Being pressed into shape parameter is, 150-180 DEG C of hot pressing temperature, pressure 2.5-3.0MPa, hot pressing time 20-30min, carries out hot pressing, saw side After also need to carry out chamfering and sanding surface again to regeneration recombination bamboo plywood, finally fixed and closed with steel framework again.
10. the manufacturing method of regeneration recombination bamboo plywood according to claim 6, it is characterised in that:The regeneration recombination Thickness is 2.5-4mm after bamboo plywood hot pressing, and the thickness relationship of the wide old plate layer of sawing and bamboo curtain splint layer and bamboo mat layer is:Wide saw The thickness for solving old plate layer is that the integral thickness that the regeneration recombinates bamboo plywood subtracts 1.5-3mm;Or increase the bamboo mat layer and bamboo The number of plies of curtain layer reduces the width of the wide old plate layer of sawing.
CN201810379897.1A 2018-04-25 2018-04-25 A kind of regeneration recombination bamboo plywood and its manufacturing method Pending CN108481471A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110774384A (en) * 2019-11-05 2020-02-11 苏师大半导体材料与设备研究院(邳州)有限公司 Preparation process of second-generation plywood

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1460579A (en) * 2003-06-16 2003-12-10 马立新 Bamboo coarse fibre veneer board
CN107283550A (en) * 2017-07-11 2017-10-24 浙江可信竹木有限公司 The bamboo and wood recombinant material composite plate and its processing technology of a kind of utilization waste material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1460579A (en) * 2003-06-16 2003-12-10 马立新 Bamboo coarse fibre veneer board
CN107283550A (en) * 2017-07-11 2017-10-24 浙江可信竹木有限公司 The bamboo and wood recombinant material composite plate and its processing technology of a kind of utilization waste material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110774384A (en) * 2019-11-05 2020-02-11 苏师大半导体材料与设备研究院(邳州)有限公司 Preparation process of second-generation plywood

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