CN108129864A - A kind of bamboo and wood leftover bits and pieces composite fibre plate and manufacturing method - Google Patents
A kind of bamboo and wood leftover bits and pieces composite fibre plate and manufacturing method Download PDFInfo
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- CN108129864A CN108129864A CN201711395878.XA CN201711395878A CN108129864A CN 108129864 A CN108129864 A CN 108129864A CN 201711395878 A CN201711395878 A CN 201711395878A CN 108129864 A CN108129864 A CN 108129864A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; Controlling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a kind of bamboo and wood leftover bits and pieces composite fibre plates, and including chemical fibre, plant fiber and plant powder particle, composite fibre pad is by weight percentage：Chemical fibre 10 20%, plant fiber 20 40%, plant powder particle 40 70%.The thickness of the composite fibre pad is 5 20mm, and density is 0.15 0.6g/cm3, plant powder particle is less than 80 mesh.The invention also discloses a kind of preparation methods of bamboo and wood leftover bits and pieces composite fibre plate, include the following steps：Open packet, thick shredding, smart shredding, screening drying, chemical fibre metering, fibre metering, it is just mixed, mix, pre- networking, it is airlaid, heat and melt, be cold-pressed, cooling down, cutting process and be made.Composite fibre pad produced by the present invention solves Form aldehyde release existing for fiberboard and plank cuts existing chipping defect, and have the characteristics that good permeability, is particularly suitable for use as the application of board for furniture.
Description
Technical field
The present invention relates to bamboo wood board applied technical field more particularly to a kind of bamboo and wood leftover bits and pieces composite fibre plate and its systems
Make method.
Background technology
Plank usually will be used when people make tables and chairs, bookshelf, cabinet, tatami when furniture items, these planks
Be for making desk panel, sitting board of chair or backup plate, bookshelf partition board, cabinet plate, platen and it is other needed for panel product weight
Want plate.Fiberboard also known as density board, existing fiberboard are using wood fibre or other plant cellulose fiber as raw material, apply ureaformaldehyde
Wood-based plate made of resin or other applicable adhesive.By taking tatami as an example, tatami sandwich layer on the market is in production still
Using a large amount of glue adhesive, pressing mold is bonded by plant fiber and glue and is molded.Contain formaldehyde in such shaped article,
Not environmentally, and use cannot be recycled, glue, which also easily goes mouldy, changes product quality, also easily hardens, reduces tatami
The elasticity of sandwich layer.
At present, the processing of bamboo and wood generates many leftover bits and pieces, and burning boiler is used for after often crushing or environment-friendlycharcoal charcoal is made, other
The excavation degree of value of exploiting and utilizing is not high, becomes the obstacle developed and used at present, in addition, bamboo powder plate, making charcoal and biomass
The value of grain is not generally high, however, the wood fibre of itself has the mechanical properties such as superior strength, toughness, in field of furniture
With very big application potential.
Therefore, those skilled in the art is dedicated to developing a kind of novel bamboo and wood leftover bits and pieces composite fibre plate, application
In the material of the board for furniture such as tatami sandwich layer, glue is substituted using chemical fibre, forms fibrous reticular structure, composite fibre obtained
The advantages of plate feature of environmental protection, good permeability.
Invention content
In view of the drawbacks described above of the prior art, the technical problems to be solved by the invention be in the production of current tatami because
The problem of feature of environmental protection caused by using glue adhesive and bad gas permeability and excavation bamboo and wood leftover bits and pieces and plant powder particle
Utility value.
To achieve the above object, the present invention provides a kind of bamboo and wood leftover bits and pieces composite fibre plate, wherein, composite fibre plate packet
Include low melting point chemical fibre, plant fiber and plant powder particle, low melting point chemical fibre content by weight percentage is 10-20%, plant
Fiber content is 20-40%, and plant powder granule content is 40-70%, wherein, plant fiber length 2-100mm, fineness is
5-80D；Low melting point chemical fibre length is 10-200mm, fineness 3-10D；Plant powder particle is less than 80 mesh；Each component passes through phase
Mutually winding interweaves and fills, and forms continuous fiber reticular structure, then bond each component through hot melt, obtains composite fibre plate.
Further, plant fiber is a kind of or combination in wood-fibred, bamboo fibre.
Further, low melting point chemical fibre includes polypropylene fiber.
Further, the thickness of composite fibre pad is 5-20mm.
Further, the density of composite fibre pad is 0.15-0.6g/cm3。
The present invention also provides a kind of manufacturing methods of above-mentioned bamboo and wood leftover bits and pieces composite fibre plate, which is characterized in that including
Following steps：
(1) packet is opened：Chemical fibre raw material is put into bale opener, by inputting flat curtain, brad curtain, raw material is opened into fibre bundle
Shape exports chemical fibre automatically through conveyer belt；
(2) thick shredding：The chemical fibre handled through bale opener is sent into thick opener and carries out preliminary shredding, thick shredding motor spindle setting
There is bottom drain, the chemical fibre after preliminary shredding enters next step by bottom drain；
(3) smart shredding：First cotton storage tank will be sent into through the chemical fibre of thick shredding by wind turbine, through fibre-condensing machine and pressure roller, chemical fibre
Further shredding is carried out into refined opener, after smart shredding, raw material reaches more tiny fibre bundle, and refined opener bottom is provided with
Bottom drain, treated, and chemical fibre is exported by bottom drain；
(4) drying is screened：Sieve screening is carried out and except iron to plant fiber and powder particle, is then sent to cylinder type rotary
Turn fully to scatter in drying machine with dry, subsequently into auger inlet and pass through and adjust helical feed velocity interpolation and quantitatively export,
Plant fiber and powder particle are mixed in big storehouse with chemical fibre as required；
(5) chemical fibre measures：Chemical fibre by smart shredding is entered the second cotton storage tank of chemical fibre feeder by air hose, passes through electronics
The metering realization of scale chemical fibre bale opener is continuous, quantitative to feed intake, in the belt conveyer scale detection belt mechanism of electronic scale chemical fibre bale opener
Inventory is simultaneously measured, and when reaching specified rate, suspends opened belt mechanism and corresponding feeder until next
It is secondary to feed intake；
(6) fibre metering：Plant fiber and powder particle raw material, through open packet, screening, conveying, drying, cooling it is a series of pre-
After processing, metal and moisture are removed, fiber feeder is sent to by machinery, realized by belt scale metering continuous, quantitative
Feed intake；
(7) it just mixes：Chemical fibre, plant fiber and powder particle enter mixing bale opener by Belt Conveying, utilize 3 groups of independent changes
The hired roughneck of frequency and setting direction of rotation tentatively mixes, and be sent into cotton blender machine by wind turbine three kinds of materials；
(8) it is mixed：In cotton blender machine, three kinds of chemical fibre, plant fiber and powder particle materials use several groups of hired roughnecks into one
Step is uniformly mixed, and retains length, the independent frequency control of every hired roughneck and setting rotation side according to mixing uniformity and plant fiber
To；
(9) pre- networking：The chemical fibre of mixing, plant fiber and plant powder particle are sent into cotton receiving box by wind turbine, and three is preliminary
Flocculent structure is combed into, and mutually winding interweaves and fills；
(10) it is airlaid：The wadding fibrous mixture blank for forming the structure that is woven enters cylinder comb through inputting curtain
Reason after being combed into uniform fibre web, is formed continuous with setting weight by networking tapered plane and negative pressure air effect superposition
Fibrous reticular structure body simultaneously continuously exports；Pressure roller is provided with above networking tapered plane, the off-balancesheet side of networking tapered plane is provided with just
Pressure fan, networking tapered plane are internally provided with negative-pressure air fan；
(11) heating melting：Continuous fiber reticular structure body is transmitted by curtain and is heated and bonded into baking oven, will be changed
Fine, plant fiber and plant powder particle three bond, and oven temperature is 160-230 DEG C；
(12) it is cold-pressed：Continuous fiber reticular structure body after hot melt is pressed into specific thickness, then be shaped by felt wrapped roll
Composite fibre plate；
(13) it cools down：For fiberboard through cold pressing sizing further by air cooling, cooling wind temperature is 0-20 DEG C；
(14) it cuts：Composite fibre plate is cut into predetermined size by process requirements.
The airlaid of the present invention belongs to high grammes per square metre and mats formation, and when being gradually accumulated raising as web frame, just having tends to blanking
Production problem, to solve the problems, such as this, the present invention is made under similary negative pressure condition, the absorption width of plane using networking tapered plane
Than other shapes (such as：Traditional cylindrical design) width it is big, improve the area of plane into the net as far as possible with this to reduce height
The ratio of degree and lateral length, avoids blanking.
The composite fibre pad of the present invention employs low melting point chemical fibre as material composition, makes chemical fibre by heating the step of melting
It melts and bonds plant fiber and plant powder particle, form uniform, continuous fibrous reticular structure, do not need to using glue,
Composite fibre pad intensity obtained is high, solves Form aldehyde release existing for fiberboard and plank cuts existing chipping defect,
Portion void is left after the melting of low melting point chemical fibre and forms air hole, and there is good permeability, be particularly suitable for doing furniture use
The core material of plank, particularly Couch cushion.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the production procedure schematic diagram of the bamboo and wood leftover bits and pieces composite fibre plate of the present invention.
Specific embodiment
The raw material of the present invention are using low melting point chemical fibre, plant fiber and plant powder particle, bamboo and wood leftover bits and pieces mixing fibre
The production method of plate is tieed up, specifically includes following steps,
(1) packet is opened：Chemical fibre raw material is put into bale opener, by inputting flat curtain, brad curtain, raw material is opened into fibre bundle
Shape exports chemical fibre automatically through conveyer belt；
(2) thick shredding：The chemical fibre handled through bale opener is sent into thick opener and carries out preliminary shredding, thick shredding motor spindle setting
There is bottom drain, the chemical fibre after preliminary shredding enters next step by bottom drain；
(3) smart shredding：First cotton storage tank will be sent into through the chemical fibre of thick shredding by wind turbine, through fibre-condensing machine and pressure roller, chemical fibre
Further shredding is carried out into refined opener, after smart shredding, raw material reaches more tiny fibre bundle, and refined opener bottom is provided with
Bottom drain, treated, and chemical fibre is exported by bottom drain；
(4) drying is screened：Sieve screening is carried out and except iron to plant fiber and powder particle, is then sent to cylinder type rotary
Turn fully to scatter in drying machine with dry, subsequently into auger inlet and pass through and adjust helical feed velocity interpolation and quantitatively export,
Plant fiber and powder particle are mixed in big storehouse with chemical fibre as required；
(5) chemical fibre measures：Chemical fibre by smart shredding is entered the second cotton storage tank of chemical fibre feeder by air hose, passes through electronics
The metering realization of scale chemical fibre bale opener is continuous, quantitative to feed intake, in the belt conveyer scale detection belt mechanism of electronic scale chemical fibre bale opener
Inventory is simultaneously measured, and when reaching specified rate, suspends opened belt mechanism and corresponding feeder until next
It is secondary to feed intake；
(6) fibre metering：Plant fiber and powder particle raw material, through open packet, screening, conveying, drying, cooling it is a series of pre-
After processing, metal and moisture are removed, fiber feeder is sent to by machinery, realized by belt scale metering continuous, quantitative
Feed intake；
(7) it just mixes：Chemical fibre, plant fiber and powder particle enter mixing bale opener by Belt Conveying, utilize 3 groups of independent changes
The hired roughneck of frequency and setting direction of rotation tentatively mixes, and be sent into cotton blender machine by wind turbine three kinds of materials；
(8) it is mixed：In cotton blender machine, three kinds of chemical fibre, plant fiber and powder particle materials use several groups of hired roughnecks into one
Step is uniformly mixed, and retains length, the independent frequency control of every hired roughneck and setting rotation side according to mixing uniformity and plant fiber
To；
(9) pre- networking：The chemical fibre of mixing, plant fiber and plant powder particle are sent into cotton receiving box by wind turbine, and three is preliminary
Flocculent structure is combed into, and mutually winding interweaves and fills；
(10) it is airlaid：The wadding fibrous mixture blank for forming the structure that is woven enters cylinder comb through inputting curtain
Reason after being combed into uniform fibre web, is formed continuous with setting weight by networking tapered plane and negative pressure air effect superposition
Fibrous reticular structure body simultaneously continuously exports；Pressure roller is provided with above networking tapered plane, the off-balancesheet side of networking tapered plane is provided with just
Pressure fan, networking tapered plane are internally provided with negative-pressure air fan；
(11) heating melting：Continuous fiber reticular structure body is transmitted by curtain and is heated and bonded into baking oven, will be changed
Fine, plant fiber and plant powder particle three bond, and oven temperature is 160-230 DEG C；
(12) it is cold-pressed：Continuous fiber reticular structure body after hot melt is pressed into specific thickness, then be shaped by felt wrapped roll
Composite fibre plate；
(13) it cools down：For fiberboard through cold pressing sizing further by air cooling, cooling wind temperature is 0-20 DEG C；
(14) it cuts：Composite fibre plate is cut into predetermined size by process requirements.
According to above-mentioned manufacturing method, the present invention has obtained a series of product of bamboo and wood leftover bits and pieces composite fibre plates, according to throwing
Material situation and manufacturing process situation, make more following enumerate.
Embodiment 1：
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 10% low melting point chemical fibre, 20% plant fiber and 70%
Plant powder particle, wherein,
Plant fiber length is 5mm, and fineness 5D, the selection of material is wood-fibred；
Low melting point chemical fibre selects polypropylene fiber, length 10mm, fineness 3D；
Plant powder particle is 100 mesh；
The temperature of heating melting is 160 DEG C after airlaid, and temperature during air cooling is 0 DEG C；
The thickness of composite fibre pad finally obtained is 5mm, and measures density as 0.46g/cm3。
Embodiment 2:
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 20% low melting point chemical fibre, 30% plant fiber and 50%
Plant powder particle, wherein,
Plant fiber length is 100mm, and fineness 80D, the selection of material is bamboo fibre；
Low melting point chemical fibre selects polypropylene fiber, length 200mm, fineness 10D；
Plant powder particle is 200 mesh；
The temperature of heating melting is 230 DEG C after airlaid, and temperature during air cooling is 20 DEG C；
The thickness of composite fibre pad finally obtained is 10mm, and measures density as 0.35g/cm3。
To be fabricated as described below one to a series of strength tests of composite fibre plate progress and permeability test, inventor
The composite fibre plate of serial uniform thickness carries out performance evaluation.
Embodiment 3:
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 10% low melting point chemical fibre, 20% plant fiber and 70%
Plant powder particle, wherein,
Plant fiber length is 20mm, fineness 30D, is wood-fibred, bamboo fibre according to 4:6 ratios combine；
Low melting point chemical fibre selects polypropylene fiber, length 100mm, fineness 5D；
100 mesh of plant powder particle；
The temperature of heating melting is 170 DEG C after airlaid, and temperature during air cooling is 0 DEG C；
The thickness of composite fibre pad finally obtained is 20mm, and measures density as 0.47g/cm3。
Embodiment 4:
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 15% low melting point chemical fibre, 30% plant fiber and 55%
Plant powder particle, wherein,
Plant fiber length is 50mm, fineness 60D, is wood-fibred, bamboo fibre according to 3:7 ratios combine；
Low melting point chemical fibre selects polypropylene fiber, length 150mm, fineness 8D；
100 mesh of plant powder particle；
The temperature of heating melting is 200 DEG C after airlaid, and temperature during air cooling is 20 DEG C；
The thickness of composite fibre pad finally obtained is 20mm, and measures density as 0.53g/cm3。
Embodiment 5:
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 20% low melting point chemical fibre, 40% plant fiber and 40%
Plant powder particle, wherein,
Plant fiber length is 20mm, fineness 5D, is wood-fibred, bamboo fibre according to 4:6 ratios combine；
Low melting point chemical fibre selects polypropylene fiber, length 100mm, fineness 50D；
100 mesh of plant powder particle；
The temperature of heating melting is 200 DEG C after airlaid, and temperature during air cooling is 10 DEG C；
The thickness of composite fibre pad finally obtained is 20mm, and measures density as 0.36g/cm3。
Embodiment 6:
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 15% low melting point chemical fibre, 30% plant fiber and 55%
Plant powder particle, wherein,
Plant fiber length is 90mm, fineness 20D, is wood-fibred, bamboo fibre according to 4:6 ratios combine；
Low melting point chemical fibre selects polypropylene fiber, length 100mm, fineness 3D；
100 mesh of plant powder particle；
The temperature of heating melting is 180 DEG C after airlaid, and temperature during air cooling is 10 DEG C；
The thickness of composite fibre pad finally obtained is 20mm, and measures density as 0.39g/cm3。
Embodiment 7:
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 10% low melting point chemical fibre, 40% plant fiber and 50%
Plant powder particle, wherein,
Plant fiber length is 100mm, fineness 5D, is wood-fibred, bamboo fibre according to 4:6 ratios combine；
Low melting point chemical fibre selects polypropylene fiber, length 200mm, fineness 5D；
100 mesh of plant powder particle；
The temperature of heating melting is 230 DEG C after airlaid, and temperature during air cooling is 0 DEG C；
The thickness of composite fibre pad finally obtained is 20mm, and measures density as 0.52g/cm3。
Embodiment 8:
The bamboo and wood leftover bits and pieces composite fibre plate of the present embodiment, including 10% low melting point chemical fibre, 30% plant fiber and 60%
Plant powder particle, wherein,
Plant fiber length is 100mm, fineness 5D, is wood-fibred, bamboo fibre according to 4:6 ratios combine；
Low melting point chemical fibre selects polypropylene fiber, length 200mm, fineness 5D；
100 mesh of plant powder particle；
The temperature of heating melting is 230 DEG C after airlaid, and temperature during air cooling is 0 DEG C；
The thickness of composite fibre pad finally obtained is 20mm, and measures density as 0.6g/cm3。
Each product of embodiment 3-8 takes 50cm2Test area sample, for assessing the gas permeability of fiberboard.It adopts
With digital permeability meter, operation principle is：Air forms negative pressure under the suction of suction ventilator in instrument channel, empty
Gas enters instrument at sample, since sample has resistance to the air of flowing, then forms pressure difference on the both sides of sample, and it is Δ to enable it
P1=P-P1, and by pressure sensor monitoring.After air enters throttling set flowmeter, throttling set both ends equally can be to flowing
Air generate resistance, be similarly formed pressure difference, enable its be Δ P2=P2-P1, also by pressure sensor monitoring, and calculate air stream
Amount.If controlling suction ventilator rotating speed using automatic control system, make pressure differential deltap P1Stablize in a certain setting value, when stablizing one end
Between after, instrument according to Δ P2 calculate sample air penetrability.
The test of mechanical property is carried out to each product of embodiment 3-8 simultaneously, elasticity modulus to composite fibre plate and
Internal bond strength is tested, it is above-mentioned respectively test as a result, as shown in the table：
It can be obtained from the result of upper table, when the plant fiber length added in raw material is longer, manufactured composite fibre
Plate can have higher elasticity modulus and internal bond strength, although and thin short fiber obtains uniform distribution intensity not
Height, bamboo fibre with preferable toughness and wood-fibred with preferable hardness and intensity, the two in proportion combination can obtain it is excellent
The mechanical property feature of change.It after adding low melting point chemical fibre, is melted by heating, can also mixed in addition to each component is made to obtain bonding
Ventilative pore space structure is obtained in fiberboard.According to data, embodiment of the embodiment 8 to obtain optimal result in the present invention.
The composite fibre pad of the present invention has following technological merit：
(1) the step of employing low melting point chemical fibre as material composition, being melted by heating melts chemical fibre and bonds plant
Fiber and plant powder particle form uniform, continuous fibrous reticular structure, do not need to, using glue, solve traditional fibre
Formaldehyde existing for plate；
(2) continuous net-shaped structure is formed by adding in fiber, composite fibre pad intensity obtained is high, has approached plank and has cut
Existing chipping defect；
(3) composition air hole is left a void after the melting of low melting point chemical fibre, there is good permeability, be particularly suitable for doing
The core material of board for furniture, particularly Couch cushion.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art without
Creative work is needed according to the present invention can to conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (6)
1. a kind of bamboo and wood leftover bits and pieces composite fibre plate, which is characterized in that composite fibre plate include low melting point chemical fibre, plant fiber and
Plant powder particle, by weight percentage low melting point chemical fibre content be 10-20%, plant fiber content be 20-40%, Plant Powder
Last granule content is 40-70%, wherein, plant fiber length 2-100mm, fineness 5-80D；Low melting point chemical fibre length is
10-200mm, fineness 3-10D；Plant powder particle is less than 80 mesh；Each component interweaves by mutually winding and filling, the company of being formed
Continuous fibrous reticular structure, then bond each component through hot melt, obtain composite fibre plate.
2. bamboo and wood leftover bits and pieces composite fibre plate as described in claim 1, which is characterized in that plant fiber is bamboo fibre, wood is fine
A kind of or combination in dimension.
3. bamboo and wood leftover bits and pieces composite fibre plate as described in claim 1, which is characterized in that it is fine that low melting point chemical fibre includes polypropylene fibre
Dimension.
4. bamboo and wood leftover bits and pieces composite fibre plate as described in claim 1, which is characterized in that the thickness of composite fibre pad is 5-
20mm。
5. bamboo and wood leftover bits and pieces composite fibre plate as described in claim 1, which is characterized in that the density of composite fibre pad is
0.15-0.6g/cm3。
6. a kind of manufacturing method of bamboo and wood leftover bits and pieces composite fibre plate as described in any one of claim 1-5 claims,
It is characterized by comprising the following steps：
(1) packet is opened：Chemical fibre raw material is put into bale opener, by inputting flat curtain, brad curtain, raw material is opened into fiber bundle-like, is passed through
Conveyer belt exports chemical fibre automatically；
(2) thick shredding：The chemical fibre handled through bale opener is sent into thick opener and carries out preliminary shredding, and thick shredding motor spindle is provided with leakage
Bottom, the chemical fibre after preliminary shredding enter next step by bottom drain；
(3) smart shredding：First cotton storage tank will be sent into through the chemical fibre of thick shredding by wind turbine, through fibre-condensing machine and pressure roller, chemical fibre enters
Refined opener carries out further shredding, and after smart shredding, raw material reaches more tiny fibre bundle, and refined opener bottom is provided with leakage
Bottom, treated, and chemical fibre is exported by bottom drain；
(4) drying is screened：Sieve screening is carried out and except iron to plant fiber and powder particle, cylinder type rotary is then sent to and becomes a cadre
It is fully scattered in dry machine with dry, subsequently into auger inlet and passes through and adjust helical feed velocity interpolation and quantitatively export, by will
It asks and mixes plant fiber and powder particle with chemical fibre in big storehouse；
(5) chemical fibre measures：Chemical fibre by smart shredding is entered the second cotton storage tank of chemical fibre feeder by air hose, passes through electronic scale
Fine bale opener metering realization is continuous, quantitative to feed intake, feeding intake in the belt conveyer scale detection belt mechanism of electronic scale chemical fibre bale opener
It measures and is measured, when reaching specified rate, suspend opened belt mechanism and corresponding feeder is thrown until next time
Material；
(6) fibre metering：Plant fiber and powder particle raw material, through opening packet, screening, conveying, drying, cooling series of preprocessing
Afterwards, metal and moisture are removed, fiber feeder is sent to by machinery, continuous, quantitative throwing is realized by belt scale metering
Material；
(7) it just mixes：Chemical fibre, plant fiber and powder particle enter mixing bale opener by Belt Conveying, using 3 groups of independence frequency conversions and
The hired roughneck of setting direction of rotation tentatively mixes, and be sent into cotton blender machine by wind turbine three kinds of materials；
(8) it is mixed：In cotton blender machine, three kinds of chemical fibre, plant fiber and powder particle materials are further mixed using several groups of hired roughnecks
It closes uniformly, length, the independent frequency control of every hired roughneck and setting direction of rotation is retained according to mixing uniformity and plant fiber；
(9) pre- networking：The chemical fibre of mixing, plant fiber and plant powder particle are sent into cotton receiving box by wind turbine, and three tentatively combs
Into flocculent structure, and mutually winding interweaves and fills；
(10) it is airlaid：The wadding fibrous mixture blank for forming the structure that is woven enters Cylinder Carding through inputting curtain, combs
After managing into uniform fibre web, the continuous fiber net with setting weight is formed by networking tapered plane and negative pressure air effect superposition
Shape structure simultaneously continuously exports；Pressure roller is provided with above networking tapered plane, the off-balancesheet side of networking tapered plane is provided with positive pressure fan,
Networking tapered plane is internally provided with negative-pressure air fan；
(11) heating melting：Continuous fiber reticular structure body is transmitted by curtain and is heated and bonded into baking oven, by chemical fibre, is planted
Fibres and plant powder particle three bond, and oven temperature is 160-230 DEG C；
(12) it is cold-pressed：Continuous fiber reticular structure body after hot melt is pressed into specific thickness, then be shaped into mixing by felt wrapped roll
Fiberboard；
(13) it cools down：For fiberboard through cold pressing sizing further by air cooling, cooling wind temperature is 0-20 DEG C；
(14) it cuts：Composite fibre plate is cut into predetermined size by process requirements.
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Cited By (1)
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| CN112166016A (en) * | 2018-04-04 | 2021-01-01 | 斯道拉恩索公司 | Method of making a dry-laid mat for thermoforming |
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