CN102862204B - Improved method for material-saving production of China fir wedge joint board - Google Patents
Improved method for material-saving production of China fir wedge joint board Download PDFInfo
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- CN102862204B CN102862204B CN201210312227.0A CN201210312227A CN102862204B CN 102862204 B CN102862204 B CN 102862204B CN 201210312227 A CN201210312227 A CN 201210312227A CN 102862204 B CN102862204 B CN 102862204B
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- 244000050510 Cunninghamia lanceolata Species 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 230000006872 improvement Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002023 wood Substances 0.000 claims abstract description 14
- 230000008439 repair process Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000975 dye Substances 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 4
- 235000013312 flour Nutrition 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 4
- 239000011118 polyvinyl acetate Substances 0.000 claims description 4
- 231100000241 scar Toxicity 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 abstract description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 210000001145 finger joint Anatomy 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
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- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses an improved method for the material-saving production of a China fir wedge joint board. Four improvements are made: 1, improvement in material selection, to be specific, the conventional straight strip-type square-edged timber is replaced by a short strip-type material which can be provided with wanes and are arched in a thickness direction; 2, improvement in planing, to be specific, four surfaces or two wide surfaces of a board are planed through a four-side planing machine or a double-side planing machine in the prior art, and a wide surface is planed at first through a thicknesser in the improved method instead; 3, improvement in side splicing, to be specific, the conventional cold pressing is replaced by hot pressing, the board is placed in a hot pressing plate of a multi-daylight press with a side pressing device after a thickness surface is coated with urea formaldehyde resin, the planed surface is downward, the pressure of a lateral surface is 2.5 to 3.2MPa, the pressure of upper and lower surfaces is 0.3 to 0.4MPa, temperature is 150 to 170 DEG C, and time is 1 to 2min; and 4, addition of a special repair procedure, to be specific, the wanes and concave surfaces are filled and leveled up. By the improvements, the utilization rate of wood is increased, the percentage of outturn of the China fir wedge joint board is increased, and production cost is lowered.
Description
Technical field
The present invention relates to a kind of finger-jointed plate production method, what especially nodal wood type was produced improves one's methods.
Background technology
The research of finger joint lumber originates in the thirties in last century, the finger-jointed plate of China is produced and is started in the eighties in last century, finger can make the long use of short material, the large use of small wood, the excellent use of bad material, improve the rate of grade of timber utilization rate and product, the effect in short supply alleviating timber resources especially high-quality timber resources is large, and be applicable to machining, equipment investment is few, economic benefit is obvious, has larger development potentiality.But, current China finger-jointed plate produces that the subject matter existed is that the volume recovery raw material that is low, that produce finger-jointed plate of finger-jointed plate is fewer and feweri, material worse and worse, raw material availability is less than 25%, production cost is high, the competitiveness of product in market is weak, for this reason, many scholars think should become the emphasis of current research by the finger-jointed plate how utilizing slabwood and small dimension wood to produce nodal wood type.Through retrieval, pertinent literature is rarely seen.
Summary of the invention
There is the cry that volume recovery is low, timber utilization rate is low present situation and timber industry circle propose how to utilize industrial wood waste in producing for finger-jointed plate, what the technical problem to be solved in the present invention was to provide that a kind of China fir finger-jointed plate nodal wood type produces improving one's methods.
Solve the problems of the technologies described above and adopt following technical scheme:
This China fir finger-jointed plate nodal wood type is produced and has been done following four improvement:
One, the improvement of selection: by the logical straight rectangular square bar of routine, change into can with wane, short with thickness direction on arc web; Length 300-600mm, thickness 6-20mm, wane≤35% on thickness direction, wane≤20% on width;
Two, the improvement of planing: by routine to sheet material on four sides or double face planer to plane four faces or two wide, change into first with one side thicknesser scrape a relative coarseness, allow wide of wane, thickness error≤the 0.3mm of sheet material after scraping, carry out thick planing again, the planer of the vertical backer of side band of thickness is scraped planing, after planing with to have planed vertical error≤0.1% of wide, another thickness face one side thicknesser is scraped planing, the rear width error≤0.1mm of planing; The feed engagement of flat planing machine and one side press planer all≤1.2mm;
Three, the improvement of side spelling: change colding pressing of routine into hot pressing, thickness face is put on the heating platen of the multidaylight press of band side-pressing device after being coated with Lauxite, wide facing down of scraping, side pressure 2.5-3.2MPa, top and bottom pressure 0.3-0.4MPa, temperature 150-170 DEG C, time 1-2Min;
Four, increase special repair procedure: except carrying out except conventional repair to rotten scar, worm channel, more need to wane, concave surface fill and lead up repairing; The raw material of healant and weight ratio are: sanding wood power: talcum powder: flour: polyvinyl acetate emulsion glue: dyestuff=(50-60): (10-15): (10-15): (20-25): (0-1), to the fixed thick sanding of hair side that finger blank flat is not planed, coat healant and make overall leveling, to upper and lower two sanding surfaces after drying.
The invention has the beneficial effects as follows and small powder, short material, rim charge, curved material can be utilized further to make raw material, improve conventional method for milling, reduce the planing amount to timber, not only energy-conservation, also improve timber utilization rate, reduce production cost, partly overcome during current finger-jointed plate is produced the subject matter existed.
Detailed description of the invention
The present invention is described in detail below in conjunction with embodiment:
One, the improvement of selection: China fir bar length is at 300-600mm, and thickness is 6-20mm, allows to there is bow action in a thickness direction, allow wane≤35% in a thickness direction, wane≤20% in the direction of the width, allows wane in the both sides of slab thickness median plane, but preferably in side.Object improves the utilization rate to Chinese fir rod, leftover pieces, crook and short material, and ensure the quality in finger-jointed plate one (just) face.
Two, the improvement of planing: first adopt one side thicknesser planish a relative coarseness, allow wide of wane, thickness error is less than 0.3mm.Object is scraped in the wide face of China fir bar adapting to thickness direction bow action, and the uniformity of each batten stressed and heat transfer when the uniformity of slab thickness and upper and lower pressure side are spelled when improving hot pressing, planing amount generally lower than the sand amount of cutting energy consumption, amount is large, be conducive to the planarization improving the rear slab of planing, reduce the sand amount of cutting in later stage, energy-saving and cost-reducing.Carry out thick planing again, its first surface adopts the planer planing of the vertical backer of band, is less than≤0.1% after planing with the vertical error of wide of having planed, and object improves batten thickness face and the perpendicularity in width face after processing, spells the uniformity of pressurizeing create conditions for side.Its second adopts one side thicknesser, requires width error≤0.1mm.Object is the uniformity ensureing the rear little batten width of processing, the uniformity that when spelling to make side, each little batten is stressed, and reduces side pressure pressure.The per tooth inlet amount of flat planing machine and one side press planer all≤1.2mm.Object improves the fineness on planing surface, minimizing side pressure pressure, minimizing glue consumption and ensures bonding strength.
Three, the improvement of side spelling: thickness face is put on the multi-daylight press heating platen of band side pressure after being painted with Lauxite, wide facing down of scraping.Object is the planarization in order to improve shaping rear slab.Control side direction (thickness face, cemented surface) pressure 2.5-3.2MPa, object ensures gummed pressure.Top and bottom (width face, heat-transfer area) pressure 0.3-0.4MPa, object is the little batten flattening bow action, increase effective contact area of heating platen and batten simultaneously, improve heat transfer efficiency, reduce the impact of the frictional force opposite side pressure transmission that its pressurization produces simultaneously.Temperature 150-170 DEG C, time 1-2min.Improve the time that temperature is not only conducive to reducing glue molding, and have certain help to the little batten distortion of minimizing and aberration.
Four, special repair procedure is increased: side is cooled to normal temperature after spelling, and carries out surely thick sanding to the hair side of not planing of finger blank flat.Object reduces processing capacity, improves sheet material volume recovery.Repair, the raw material of healant and proportioning are: sanding wood power: talcum powder: industrial flour: polyvinyl acetate emulsion again: dyestuff=(50-60): (10-15): (10-15): (20-25): (0-1).Object fills and leads up because of wane, wide the concave surface produced of not planishing and sanding flat, wherein sanding wood power is the contraction after filler, talcum powder both can reduce paddle dryer, increase again fluency when filling up construction, the solids content of glue mainly set up by industry flour, reduce the contraction of filler after drying time and drying, polyvinyl acetate emulsion plays cementation, and dyestuff is to make the color of the color of filler and slab close.Again upper and lower two sanding surfaces are carried out to it after drying.
In planing operation of the present invention, open before finger joint and carry out three planings to batten, wherein scrape planing in two sides, and scraping in wide face, no longer planes after spreading.Finger joint is gluing not, rely on the processing interference degree of tenon and the gradient of tenon cheek to improve the adhesion of tenon, object not only can reduce costs, and reduces operation, and after gluing can be reduced, refer to the out-of-flatness on the spreading batten surface that the imbibition of tenon causes, reduce post-production amount.Do not adopt four side moulder, do not need independent batching to the spreading of little batten, allowance is little, and raw material availability is high.In selection, allow little batten (raw material) to have certain wane, have larger bow action at thickness direction; By my contrast test, adopt finger-jointed plate production method after improving to compare with conventional production methods, produce every 1m
3finger-jointed sheet material because of factors such as planing amount minimizings, reduce energy consumption 12%; Applicable raw materials scope is wide, and especially processing rim charge and small dimension wood obtain higher utilization.As calculated: the China fir of diameter 50-80mm, after leaving wane, utilization rate improves 23%, and the utilization rate of fir system material slabwood improves more than 30%.
This method is also applicable to other quick growing species of trees beyond China fir, and NM China fir finger-jointed plate production process is carried out according to a conventional method.
Claims (1)
1. what a China fir finger-jointed plate nodal wood type was produced improves one's methods, and it is characterized in that having done following four improvement:
One, the improvement of selection: by the logical straight rectangular square bar of routine, change into allow with wane, short with thickness direction on arc web; Length 300-600mm, thickness 6-20mm, wane≤35% on thickness direction, wane≤20% on width;
Two, the improvement of planing: slab four-side planing or double face planer are planed four faces or two wide by routine, change into first with one side thicknesser scrape slab relative coarseness, allow wide of wane, thickness error≤the 0.3mm of sheet material after scraping, carry out thick planing again, the planer of the vertical backer of side band of thickness is scraped planing, after planing with to have planed vertical error≤0.1% of wide, another thickness face one side thicknesser is scraped planing, the rear width error≤0.1mm of planing; The feed engagement of flat planing machine and one side press planer all≤1.2mm;
Three, the improvement of side spelling: thickness face is put on the heating platen of the multidaylight press of band side-pressing device after being coated with Lauxite, wide facing down of scraping, side pressure 2.5-3.2MPa, top and bottom pressure 0.3-0.4MPa, temperature 150-170 DEG C, time 1-2Min;
Four, increase special repair procedure: except carrying out except conventional repair to rotten scar, worm channel, more need to wane, concave surface fill and lead up repairing; The raw material of healant and weight ratio are: sanding wood power: talcum powder: flour: polyvinyl acetate emulsion glue: dyestuff=(50-60): (10-15): (10-15): (20-25): (0-1), to the fixed thick sanding of hair side that finger blank flat is not planed, coat healant and make overall leveling, to upper and lower two sanding surfaces after drying.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210312227.0A CN102862204B (en) | 2012-08-29 | 2012-08-29 | Improved method for material-saving production of China fir wedge joint board |
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| CN201210312227.0A CN102862204B (en) | 2012-08-29 | 2012-08-29 | Improved method for material-saving production of China fir wedge joint board |
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| CN102862204A CN102862204A (en) | 2013-01-09 |
| CN102862204B true CN102862204B (en) | 2015-03-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106696014A (en) * | 2017-01-20 | 2017-05-24 | 青岛良木股份有限公司 | Allowance-free machining method for panels |
| CN113001679A (en) * | 2021-02-26 | 2021-06-22 | 孙浩 | Agricultural planing plate device with strong durability |
Citations (5)
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| CN1709668A (en) * | 2005-07-25 | 2005-12-21 | 浙江林学院 | Production method for thin integrating timber by hot-press |
| CN101380747A (en) * | 2007-10-16 | 2009-03-11 | 福建省尤溪县三林木业有限公司 | Fir wood plank structure and processing method thereof |
| CN101698311A (en) * | 2009-11-06 | 2010-04-28 | 湖南福湘木业有限责任公司 | Production process for finger jointing laminated wood board |
| CN102092071A (en) * | 2010-12-10 | 2011-06-15 | 湖南福湘木业有限责任公司 | Laminated wood board processing technique capable of improving utilization rate of board core material |
| CN102284993A (en) * | 2011-08-04 | 2011-12-21 | 陈笑初 | Sericulture tree core blockboard and production method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001018205A (en) * | 1999-07-06 | 2001-01-23 | Okumura Mokuzai Kk | Decorative laminate plate |
| WO2002045926A1 (en) * | 2000-12-07 | 2002-06-13 | Batwing Corp. | Process for producing plywood with a laminated core |
| JP2004130694A (en) * | 2002-10-11 | 2004-04-30 | Naigai Kogyo Kk | Woodboard manufacturing method |
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- 2012-08-29 CN CN201210312227.0A patent/CN102862204B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709668A (en) * | 2005-07-25 | 2005-12-21 | 浙江林学院 | Production method for thin integrating timber by hot-press |
| CN101380747A (en) * | 2007-10-16 | 2009-03-11 | 福建省尤溪县三林木业有限公司 | Fir wood plank structure and processing method thereof |
| CN101698311A (en) * | 2009-11-06 | 2010-04-28 | 湖南福湘木业有限责任公司 | Production process for finger jointing laminated wood board |
| CN102092071A (en) * | 2010-12-10 | 2011-06-15 | 湖南福湘木业有限责任公司 | Laminated wood board processing technique capable of improving utilization rate of board core material |
| CN102284993A (en) * | 2011-08-04 | 2011-12-21 | 陈笑初 | Sericulture tree core blockboard and production method thereof |
Non-Patent Citations (1)
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| 张广仁.木材涂饰原理.《木材涂饰原理》.1990, * |
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Application publication date: 20130109 Assignee: Jiangshan City Forestry Industry Association Assignor: Zhejiang A & F University Contract record no.: 2017330000042 Denomination of invention: Improved method for material-saving production of China fir wedge joint board Granted publication date: 20150311 License type: Common License Record date: 20170406 |
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Effective date of registration: 20211022 Address after: Room 1011, 4 / F, building 5, No. 299, Hangfu Road, Chongfu Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Tongxiang Beite Technology Co.,Ltd. Address before: 311300 No. 88 North Ring Road, Zhejiang, Ling'an Patentee before: ZHEJIANG A & F University |
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