CN113232117A - High-moisture-proof high-density fiberboard device and manufacturing method thereof - Google Patents

High-moisture-proof high-density fiberboard device and manufacturing method thereof Download PDF

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Publication number
CN113232117A
CN113232117A CN202110260143.6A CN202110260143A CN113232117A CN 113232117 A CN113232117 A CN 113232117A CN 202110260143 A CN202110260143 A CN 202110260143A CN 113232117 A CN113232117 A CN 113232117A
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CN
China
Prior art keywords
plate blank
density fiberboard
conveying
slab
high density
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Pending
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CN202110260143.6A
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Chinese (zh)
Inventor
林新青
王炜
许孟祥
廖丹雄
陈义澎
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Furen Wood Putian Co ltd
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Furen Wood Putian Co ltd
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Application filed by Furen Wood Putian Co ltd filed Critical Furen Wood Putian Co ltd
Priority to CN202110260143.6A priority Critical patent/CN113232117A/en
Publication of CN113232117A publication Critical patent/CN113232117A/en
Pending legal-status Critical Current

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    • 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
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from 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
    • B27N3/10—Moulding of mats
    • B27N3/12—Moulding of mats from 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

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention discloses high-moisture-proof high-density fiberboard equipment and a manufacturing method thereof in the technical field of board preparation, and the equipment comprises an air flow spreading machine, a prepress, a cutting machine, a microwave preheating device, a steam injection preheating device, a hot press, a second friction roller shaft conveyor and a clamping roller conveyor which are sequentially arranged in a line in the conveying direction of a board blank in an end-to-end manner, wherein the second friction roller shaft conveyor is provided with a trimming device; the thermoplasticity of the plate blank is increased through the steam-injection preheating device, the plate blank is heated and softened, the thermoplasticity is increased, the rebound force is reduced, the plate blank is easy to be pressed to the specified thickness, and the manufacture of the high-density fiberboard is realized; a row of through holes are reserved in the center of the plate blank, so that the plate blank is heated uniformly, and the center temperature of the plate blank is improved.

Description

High-moisture-proof high-density fiberboard device and manufacturing method thereof
Technical Field
The invention relates to the technical field of plate preparation, in particular to high-moisture-proof high-density fiberboard equipment and a manufacturing method thereof.
Background
The fiber board sold in the market at present is an artificial board prepared by slicing, cooking, fiber separating, drying, applying urea-formaldehyde resin or other suitable adhesives, and hot pressing raw wood, felling, processing residues and non-wood plant fiber raw materials.
The fiberboard has the characteristics of wide raw material source, easiness in secondary processing and the like, is the most representative artificial board variety in China, and in the manufacturing process of the fiberboard, factors influencing the product quality are many, including the quality of raw materials, the form of fibers after hot grinding, the moisture content of the fibers after dry grinding, the quality and the glue application amount of an adhesive, a hot pressing process and the like.
The whole slab is heated, heat is transferred from the surface of the slab to the inside of the slab, so that the internal temperature and the external temperature of the slab reach the curing temperature of the adhesive, and the slab is cured and molded. Before entering a press, the temperature of the fiber plate blank is low, generally about 20 ℃, and the heat conduction capability of dry fibers is poor, so that the hot pressing period is long, large temperature difference exists between the inside and the outside of the plate blank in the hot pressing process (the temperature of an outer layer is high, the temperature of an inner layer is low), and the improvement of the product quality and the production capacity is directly influenced.
Based on the above, the invention designs a high-moisture-proof high-density fiberboard device and a manufacturing method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide high-moisture-proof high-density fiberboard equipment and a manufacturing method thereof, and aims to solve the problem that a large temperature difference exists between the inside and the outside of a board blank in a hot pressing process in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high dampproofing high density fiberboard equipment, includes along the air current spreading machine, preformer, cutting machine, microwave preheating device, the preheating device that evaporates, hot press, second friction roller conveyer and the clamp rod conveyer of slab direction of delivery end to end connection in proper order, install trimming device on the second friction roller conveyer.
Preferably, the device further comprises a telescopic device with the telescopic direction parallel to the slab conveying direction, the output end of the telescopic device is connected with a plurality of cross rods which are horizontally arranged at equal intervals, the extending direction of the length of each cross rod is consistent with the telescopic direction of the telescopic device, and the telescopic device telescopically drives the cross rods to penetrate through the air flow spreading machine to extend into the prepressing machine or to be far away from the prepressing machine.
Preferably, the trimming device comprises two groups of trimming saws and two groups of flying cross-cut saws, wherein the trimming saws and the two groups of flying cross-cut saws are respectively positioned on two opposite sides of the conveying direction of the second friction roller shaft conveyor, and the two groups of flying cross-cut saws are arranged in parallel and synchronously and linearly move along the conveying direction vertical to the second friction roller shaft conveyor.
Preferably, the system further comprises a noise reduction and sound insulation chamber for covering the flush saw and the flying cross-cut saw.
Preferably, the telescoping device includes two sets of supports that parallel, and is two sets of it is integrative to link through the horizontal rail between the support, two sets of install chain conveyer between the support, install on the chain among the chain conveyer with horizontal rail sharp sliding fit's slider, a plurality of the horizontal pole is installed on same a set of riser, the riser straight line runs through one of them set of support.
Preferably, the horizontal pole adopts solid cylinder pole, horizontal pole swivelling joint is on the riser, install the reciprocal flexible push rod along the vertical horizontal pole rotation axis direction is flexible on the riser, reciprocal flexible push rod output is installed with the straight line sliding fit's of push pedal riser, the friction pad with a plurality of horizontal pole outer wall butts is installed to push pedal one side.
Preferably, a slab humidifying device is installed at the inlet of the hot press.
A method for manufacturing a high-moisture-proof high-density fiberboard comprises the following steps:
s1: conveying the wood fibers to an air flow spreading machine to be spread into continuous slabs, removing air in the slabs and pre-pressing the slabs through a pre-pressing machine to enable the slabs to be compressed to 40% -60%, and pressurizing and maintaining the pressure for 10-30 s;
s2: cutting the continuous plate blank into mutually independent plate-shaped structures by a cutting machine;
s3: conveying the plate-shaped plate blank to a microwave preheating device, and heating to 50-60 ℃;
s4: conveying the heated blocky plate blank into a steam-injection preheating device for steam injection, wherein the steam injection time is 5-10s, and the steam pressure is 0.5-0.8 Mpa;
s5: conveying the steamed plate blank to a hot press for hot pressing to a set thickness, wherein the hot pressing pressure is 200-2The hot pressing speed is 400-;
s6: and cutting into standard size after cooling.
Preferably, a mat humidifying device is installed at the inlet of the hot press for increasing the moisture content of the mat.
Preferably, a row of through holes at two sides are reserved in the middle of the plate blank in the process of paving the wood fibers into the continuous plate blank.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the plate blank is heated to a certain temperature by the microwave preheating device before hot pressing, so that the plate blank is prevented from being cracked due to rapid temperature rise; the thermoplasticity of the plate blank is increased through the steam-injection preheating device, the plate blank is heated and softened, the thermoplasticity is increased, the rebound force is reduced, the plate blank is easy to be pressed to the specified thickness, and the manufacture of the high-density fiberboard is realized; a row of through holes are reserved in the center of the plate blank, so that the plate blank is heated uniformly, and the center temperature of the plate blank is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a production line according to the present invention;
FIG. 2 is a schematic view of the structure of the telescopic device of the present invention;
fig. 3 is a schematic view of a cross bar rotating structure according to the present invention.
1. Paving a bag type conveyor; 2. an airflow spreading machine; 21. a strickling device; 22. a flattening device; 3. a telescoping device; 31. a cross bar; 32. a support; 33. a transverse rail; 34. a slider; 35. a vertical plate; 351. a reciprocating telescopic push rod; 352. pushing the plate; 36. a chain transmission device; 4. a prepress; 5. a cutter; 51. a first friction roller conveyor; 6. a microwave preheating device; 7. a spray-steaming preheating device; 8. a hot press; 9. a second friction roller conveyor; 10. a trimming device; 101. trimming saw; 102. a flying cross-cut saw; 103. a noise reduction and sound insulation chamber; 11. a clamping roller conveyor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The high-moisture-proof high-density fiberboard equipment comprises an air flow spreading machine 2, a prepress 4, a cutting machine 5, a microwave preheating device 6, a steam-injection preheating device 7, a hot press 8, a second friction roller shaft conveyor 9 and a clamping roller conveyor 11 which are sequentially arranged in a line in the conveying direction of a board blank in an end-to-end mode, wherein a trimming device 10 is installed on the second friction roller shaft conveyor 9.
Further, the device comprises a telescopic device 3 with the telescopic direction parallel to the slab conveying direction, the output end of the telescopic device 3 is connected with a plurality of cross rods 31 which are horizontally arranged at equal intervals, the extending direction of the length of each cross rod 31 is consistent with the telescopic direction of the telescopic device 3, and the telescopic device 3 stretches to drive the cross rods 31 to penetrate through the airflow spreading machine 2 and stretch into the prepressing machine 4 or to be far away from the prepressing machine 4.
Further, the trimming device 10 includes two sets of trimming saws 101 respectively located on two opposite sides of the second friction roller conveyor 9 in the conveying direction, and two sets of flying cross-cut saws 102 arranged in parallel, wherein the two sets of flying cross-cut saws 102 synchronously and linearly move along the direction perpendicular to the conveying direction of the second friction roller conveyor 9.
Further, a noise reduction and sound insulation chamber 103 for housing the flush saw 101 and the flying miter saw 102 is also included.
Furthermore, the telescoping device 3 includes two sets of supports 32 that are parallel, and two sets of supports 32 are connected through horizontal rail 33 and become an organic whole, installs chain conveyer 36 between two sets of supports 32, installs the slider 34 with horizontal rail 33 straight line sliding fit on the chain in the chain conveyer 36, and a plurality of horizontal poles 31 are installed on same set of riser 35, and one of them set of support 32 is run through to riser 35 straight line.
Further, the cross rod 31 adopts a solid cylindrical rod, the cross rod 31 is rotatably connected to the vertical plate 35, a reciprocating telescopic push rod 351 which stretches along the direction of the rotation axis of the vertical cross rod 31 is installed on the vertical plate 35, a push plate 352 which is in linear sliding fit with the vertical plate 35 is installed at the output end of the reciprocating telescopic push rod 351, and a friction pad which is abutted to the outer wall of the plurality of cross rods 31 is installed on one side of the push plate 352.
Further, a slab humidifying device is installed at the inlet of the hot press 8.
A method for manufacturing a high-moisture-proof high-density fiberboard comprises the following steps:
s1: conveying the wood fibers to an air flow spreading machine 2 to be spread into continuous slabs, removing air in the slabs and prepressing the slabs through a prepress 4 to enable the slabs to be compressed to 40% -60%, and pressurizing and pressure maintaining time to be 10-30 s;
s2: cutting the continuous slab into mutually independent plate-like structures by a cutting machine 5;
s3: conveying the plate-shaped plate blank to a microwave preheating device 6, and heating to 50-60 ℃;
s4: conveying the heated blocky plate blank into a steam-injection preheating device 7 for steam injection, wherein the steam injection time is 5-10s, and the steam pressure is 0.5-0.8 Mpa;
s5: conveying the steamed plate blank to a hot press 8 for hot pressing to a set thickness, wherein the hot pressing pressure is 200-2The hot pressing speed is 400-;
s6: and cutting into standard size after cooling.
Further, a slab humidifying device is installed at the inlet of the hot press 8 for increasing the moisture content of the slab.
Furthermore, a row of through holes at two sides are reserved in the middle of the plate blank in the process of paving the wood fibers into the continuous plate blank.
One embodiment of the invention:
the air flow spreading machine 2, the prepress 4, the cutting machine 5, the microwave preheating device 6, the steam injection preheating device 7, the hot press 8, the second friction roller conveyer 9, the trimming device 10 (consisting of a trimming saw 101 and a flying cross-cut saw 102) and the clamping roller conveyer 11 are sequentially connected end to end, and the scheme is that the connection relation of the equipment is improved in the prior art.
A strickling device 21 and a flattening device 22 are arranged in the air-flow spreading machine 2, the glued wood fibers are conveyed into the air-flow spreading machine 2, the air-flow spreading machine 2 spreads the wood fibers to form a plate blank, the plate blank moves forwards under the conveying of the spreading bag type conveyor 1 and passes through the strickling device 21, the strickling device 21 scrapes off the redundant wood fibers on the upper surface of the plate blank so that the thickness of the spread plate blank reaches a set value, the strickling plate blank continues to move forwards under the conveying of the spreading bag type conveyor 1 and passes through the flattening device 22, the flattening device 22 can adopt a rotating roller, and the flattening device 22 performs primary compression molding on the passed plate blank;
conveying the preliminarily pressed and formed slab into a prepressing machine 4, exhausting air and prepressing the slab in the slab by the prepressing machine 4, compressing the slab to 50% of an original state, and pressurizing and maintaining for 20s to enable the slab to have certain strength and reduce the thickness of the slab;
cutting the plate-shaped blank into independent plate-shaped structures by a cutting machine 5 after pre-pressing forming, and continuously moving the plate-shaped structure plate blank forwards into a microwave preheating device 6 under the conveying of a first friction roller shaft conveyor 51;
then, the plate blank is continuously conveyed to the microwave preheating device 6 to be heated to about 55 ℃, the temperature of the plate blank is detected through an infrared temperature sensor, and the plate blank is prevented from being cracked due to rapid temperature rise;
then, the plate blank continues to advance and is conveyed into the steam-injection preheating device 7, a plate blank humidifying device is installed at the inlet of the steam-injection preheating device 7, water mist can be sprayed on the upper surface and the lower surface of the plate blank by the plate blank humidifying device through a spray head and is used for increasing the water content of the plate blank, the steam-injection time of the steam-injection preheating device 7 is 8s, the steam pressure is 0.6Mpa, the thermoplasticity of the plate blank is increased, the plate blank is heated and softened, the thermoplasticity is increased, the rebound force is reduced, the plate blank is easy to be pressed to a specified thickness, and the high-density fiberboard is manufactured;
the plate blank after the steam injection continues to advance and is conveyed into the hot press 8, and the hot pressing pressure is 300kg/cm2The hot pressing speed is 500mm/s, the hot pressing temperature is 160 ℃, the hot pressing time is 1.0min, the hot pressing machine 8 carries out hot pressing to the set thickness, and the plate blank after steam injection is easier to compress and improve the density;
conveying the hot-pressed plate blank to a second friction roller shaft conveyor 9 for natural cooling, and driving the hot-pressed plate blank to move forwards and simultaneously carrying out natural cooling by the second friction roller shaft conveyor 9;
the slab moves to the inside of a noise reduction and sound insulation chamber 103 on a second friction roller conveyor 9, the second friction roller conveyor 9 is provided with edge-trimming saws 101 along two opposite sides of the advancing direction of the slab, the second friction roller conveyor 9 is also provided with two groups of flying cross-cutting saws 102 arranged in parallel, the edge-trimming saws 101 can adopt electric saws to cut the passing slab into standard width, then the second friction roller conveyor 9 drives the slab to continue to advance by one end and move, then the second friction roller conveyor 9 stops, and the two groups of flying cross-cutting saws 102 move back and forth simultaneously to cut the slab into standard length; the arrangement of the trimming saw 101 and the flying cross-cut saw 102 inside the noise reduction and sound insulation chamber 103 is beneficial to reducing noise generated by cutting;
the slabs cut to standard sizes are conveyed further back by the nip conveyor 11 for subsequent processes.
A row of cross bars 31 which are arranged at equal intervals are also arranged, the cross bars 31 can adopt solid cylindrical bars, the row of cross bars 31 which are arranged at equal intervals are horizontally arranged, the axis of the cross bar 31 is parallel to the advancing moving direction of the slab on the air flow spreading machine 2 and the prepressing machine 4, one end of the cross bar 31 passes through the air flow spreading machine 2 and the scraping device 21 and the flattening device 22 inside the air flow spreading machine from the bracket 32 and extends to the prepressing machine 4, a row of through holes are reserved in the middle of the laid slab through the row of cross bars 31, the stretching device 3 extends synchronously in the process that the plate blank moves towards the interior of the prepressing machine 4, the stretching device 3 extends to drive the row of cross rods 31 to move to the interior of the prepressing machine 4, when the prepressing machine 4 prepresses the plate blank, the through hole can be prevented from being compressed to cause the through hole to be closed, the prepressed plate blank control expansion device 3 shortens to drive the row of cross rods 31 to be separated from the prepressing machine 4, so that the middle part of the plate blank is provided with the row of through holes;
one end of the row of cross rods 31 horizontally and linearly penetrates through the group of supports 32 to guide the movement of the cross rods 31, the right ends of the row of cross rods 31 are connected into a whole through the vertical plate 35, and the forward and reverse rotation of the chain transmission device 36 is matched with the linear sliding of the slide rail 33 through the slide block 34 to drive the row of cross rods 31 to horizontally and linearly move;
all with riser 35 swing joint the right-hand member of one row of horizontal pole 31, reciprocal telescopic push rod 351 is installed at riser 35 top, reciprocal telescopic push rod 351 can adopt electric putter to realize reciprocal flexible, reciprocal telescopic push rod 351's flexible direction and horizontal pole 31's axis mutually perpendicular, reciprocal telescopic push rod 351 is flexible to drive push pedal 352 straight reciprocating motion under riser 35 guides, the great friction pad of change frictional resistance can be dismantled to the one deck is installed to push pedal 352's bottom, the friction pad simultaneously with the right-hand member butt of multiunit horizontal pole 31, thereby push pedal 352's reciprocating motion drives the reciprocal positive and negative rotation of multiunit horizontal pole 31 under the promotion of frictional force, horizontal pole 31 can avoid wood fiber to pile up at horizontal pole 31 top, and horizontal pole 31 is rotatory and is favorable to breaking away from the slab after.
A row of through holes are reserved in the center of the plate blank, so that the whole plate blank is uniformly heated when the plate blank is heated in the microwave preheating device 6 and steamed in the steaming preheating device 7, and the center temperature of the plate blank is improved; when the hot press 8 compresses the steamed plate blank again, the plate blank is steamed and softened, and has large thermoplasticity, so that the row of the left through holes is compressed and filled.
The electrical equipment is connected with an external power supply through an external control switch.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. The utility model provides a high dampproofing high density fiberboard equipment which characterized in that: the automatic flat plate blank spraying and conveying device comprises an air flow spreading machine (2), a prepressing machine (4), a cutting machine (5), a microwave preheating device (6), a steam spraying preheating device (7), a hot press (8), a second friction roller shaft conveyor (9) and a clamping roller conveyor (11) which are sequentially arranged in a straight line along the conveying direction of a plate blank in an end-to-end mode, wherein a trimming device (10) is installed on the second friction roller shaft conveyor (9).
2. A high moisture resistant high density fiberboard apparatus according to claim 1, wherein: still including telescoping device (3) that flexible direction is parallel with slab direction of delivery, telescoping device (3) output is connected with horizontal pole (31) of a plurality of equidistant horizontal arrangements, the extending direction of horizontal pole (31) length is unanimous with telescoping device (3) flexible direction, telescoping device (3) are flexible to be driven horizontal pole (31) and pass the air current spreading machine (2) and stretch into inside the preformer (4) or keep away from preformer (4).
3. A high moisture resistant high density fiberboard apparatus according to claim 1, wherein: the trimming device (10) comprises two groups of trimming saws (101) which are respectively positioned on two opposite sides of the conveying direction of the second friction roller shaft conveyor (9) and two groups of flying cross-cut saws (102) which are arranged in parallel, wherein the two groups of flying cross-cut saws (102) synchronously and linearly move along the conveying direction vertical to the second friction roller shaft conveyor (9).
4. A high moisture resistant high density fiberboard apparatus according to claim 3, wherein: also includes a noise reduction and sound isolation chamber (103) for housing the flush saw (101) and the flying cross-cut saw (102).
5. A high moisture resistant high density fiberboard apparatus according to claim 1, wherein: telescoping device (3) are including two sets of supports (32) that parallel, and are two sets of link through horizontal rail (33) between support (32) is integrative, two sets of install chain conveyer (36) between support (32), install on the chain in chain conveyer (36) with horizontal rail (33) straight line sliding fit's slider (34), a plurality of horizontal pole (31) are installed on same group's riser (35), riser (35) straight line runs through one of them a set of support (32).
6. A high moisture resistant high density fiberboard apparatus according to claim 5, wherein: horizontal pole (31) adopt solid cylinder pole, horizontal pole (31) swivelling joint is on riser (35), install reciprocal flexible push rod (351) along vertical horizontal pole (31) rotation axis direction flexible on riser (35), reciprocal flexible push rod (351) output is installed with riser (35) sharp sliding fit's push pedal (352), push pedal (352) one side install with the friction pad of a plurality of horizontal poles (31) outer wall butt.
7. A high moisture resistant high density fiberboard apparatus according to claim 1, wherein: and a slab humidifying device is arranged at the inlet of the hot press (8).
8. A method for manufacturing a high-moisture-proof high-density fiberboard is characterized by comprising the following steps: the method comprises the following steps:
s1: conveying the wood fibers to an air flow spreading machine (2) to be spread into continuous slabs, removing air and prepressing slabs from the slabs through a prepress (4) to enable the slabs to be compressed to 40% -60%, and keeping the pressure for 10-30 s;
s2: cutting the continuous plate blank into mutually independent plate-shaped structures by a cutting machine (5);
s3: conveying the plate-shaped plate blank to a microwave preheating device (6) and heating to 50-60 ℃;
s4: conveying the heated blocky plate blank into a steam-injection preheating device (7) for steam injection, wherein the steam injection time is 5-10s, and the steam pressure is 0.5-0.8 Mpa;
s5: conveying the steamed plate blank to a hot press (8) for hot pressing to a set thickness, wherein the hot pressing pressure is 200-2The hot pressing speed is 400-;
s6: and cutting into standard size after cooling.
9. A high moisture resistant high density fiberboard apparatus according to claim 8, wherein: a slab humidifying device is arranged at the inlet of the hot press (8) and is used for increasing the moisture content of the slab.
10. A high moisture resistant high density fiberboard apparatus according to claim 8, wherein: a row of through holes at two sides are reserved in the middle of the plate blank in the process of paving the wood fiber into the continuous plate blank.
CN202110260143.6A 2021-03-10 2021-03-10 High-moisture-proof high-density fiberboard device and manufacturing method thereof Pending CN113232117A (en)

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CN202110260143.6A CN113232117A (en) 2021-03-10 2021-03-10 High-moisture-proof high-density fiberboard device and manufacturing method thereof

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Application Number Priority Date Filing Date Title
CN202110260143.6A CN113232117A (en) 2021-03-10 2021-03-10 High-moisture-proof high-density fiberboard device and manufacturing method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114654556A (en) * 2022-03-17 2022-06-24 福人木业（莆田）有限公司 Environment-friendly medium density fiberboard fiber preheating combination process and production equipment thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114654556A (en) * 2022-03-17 2022-06-24 福人木业（莆田）有限公司 Environment-friendly medium density fiberboard fiber preheating combination process and production equipment thereof

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