CN103722604A - Method for manufacturing bamboo fiber non-glued door plank - Google Patents
Method for manufacturing bamboo fiber non-glued door plank Download PDFInfo
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- CN103722604A CN103722604A CN201410011414.4A CN201410011414A CN103722604A CN 103722604 A CN103722604 A CN 103722604A CN 201410011414 A CN201410011414 A CN 201410011414A CN 103722604 A CN103722604 A CN 103722604A
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Abstract
The invention discloses a method for manufacturing a bamboo fiber non-glued door plank. The method sequentially comprises the steps of hot-grind fiber separation, drying, mat formation, pre-pressing and sawing hot-press forming. During hot-press forming, a preform is sent into a door plank die which is designed to have an upper die body and a lower die body which are respectively provided with a concave surface and a convex surface according to the requirements for the upper surface and the lower surface of the actual door plank, die-press forming is achieved through a hot-press machine after die assembly, the hot-press temperature is 160-240 DEG C, the hot-press pressure is 45-95kg/cm<2>, the hot-press time is 6-15min, and the non-glued high-density bamboo fiber special-shaped die pressing door plank is obtained after die releasing. According to the method, chemical components in bamboo fibers are degraded under high temperature and high pressure to generate naturally sticky substances with low molecular weight, then the undegraded bamboo fibers are bonded together under the action of temperature and pressure, and the bamboo fiber non-glued door plank which is high in mechanical property and has patterns on is obtained under the action of the door plank die in a one-shot die-press forming mode.
Description
Technical field
The present invention relates to utilize bamboo fibre to produce the preparation method of glue-free door-plate.
Background technology
The utilization rate of bamboo wood is lower, and at present the fabrication processing of Recombined bamboo is: bamboo chip rolls after cutting into set pattern lattice oblong-shaped, be dried, after stone, compressing, clipping edge, form bamboo recombined material at many levels on impregnation, redrying, moulding press.While rolling, bamboo chip is placed on and on roller roller, is rolled into the loose and staggered bamboo fiber bundle bar that is connected, longitudinally keeps original fiber direction, bamboo fiber bundle through impregnation redrying is mated formation on mould, and suppress after leveling at the two ends of bamboo fiber bundle bar.During compacting, use mould to be formed by cope match-plate pattern, lower bolster, through hot press, be pressed into flat sheet, then sheet material is carried out to the processing such as sawing, blanking, car, milling, plane by size requirements and process, be finally assembled into door-plate.
Obviously, hand labor power and postprocessing working procedures that whole process need is a large amount of, increased the labor cost that door-plate is produced, and bamboo fibre raw material are combined into by adhesive, and the feature of environmental protection and the material cost of product exist defect.Therefore be necessary to improve for above-mentioned defect.
Summary of the invention
For the deficiencies in the prior art, the invention provides the preparation method of the glue-free door-plate of a kind of bamboo fibre.
The present invention is achieved through the following technical solutions: the preparation method of the glue-free door-plate of a kind of bamboo fibre, the method comprises the steps: step 1, the fine technique of defibrator process solution: will after fresh bamboo sawing burst, send in boiling cylinder, control 145 ℃～190 ℃ of boiling temperatures, digestion time 3 min～10min, final machinery is separated fibre and is obtained bamboo fibre; Step 2, drying process: the bamboo fibre raw material that defibrator process is gone out adds during through plasma discharge after soda acid auxiliary agent to be sent into and launch a surprise attack formula drying tube through 120 ℃～180 ℃ dry processing of hot-air, controls its moisture content 4%～7%; Step 3, paving process: according to product thickness, take appropriate bamboo fibre raw material, utilize mechanical vacuum to mat formation to carry out uniform feeding and mat formation; Step 4, pre-pressing process: the bamboo fibre raw material through mating formation, be transported to precompressed station and carry out precompressed, by bamboo fibre compression exhaust, obtain having the slab of some strength; Step 5, Sawing Process: according to the suitable slab of product length and width size sawing; Step 6, hot press forming technology: preformed base substrate is sent into door-plate mould, and mould has more actual door-plate top and bottom need to be arranged to have the upper/lower die of male and fomale(M&F), after matched moulds through hot press compression molding, 160 ℃～240 ℃ of hot pressing temperatures, hot pressing pressure 45kg/cm
2～95kg/cm
2, hot pressing time 6min～15min, obtains glueless bamboo fiber abnormity molded door skin after the demoulding.
In technique scheme, described precompressed station precompression is at 10～25 kg/cm2.
In technique scheme, described soda acid auxiliary agent is sulfuric acid, hydrochloric acid, NaOH.
The present invention has following beneficial effect: the glue-free door-plate of the present invention does not add any adhesive, and product has the advantages such as intensity is good, fungi-proofing, anti-mildew.
The specific embodiment
Below the present invention is described in further detail, the preparation method of the glue-free door-plate of a kind of bamboo fibre, the method comprises the steps: step 1, the fine technique of defibrator process solution: will after fresh bamboo sawing burst, send in boiling cylinder, control 145 ℃～190 ℃ of boiling temperatures, digestion time 3 min～10min, final machinery is separated fibre and is obtained bamboo fibre, Defibrating Technology is a very important ring wherein, color and the energy consumption of product have been determined, even affect the speed of production of product, thus the market viability of final left and right product.And topmost technology controlling and process point is exactly digestion time in whole Defibrating Technology, if digestion time is longer than actual required digestion time, will cause plate face partially black, tendering of fiber and reduce plate internal bond strength, digestion time is too short can cause separate not exclusively fine.The present invention obtains 145 ℃～190 ℃ of boiling temperatures by repetition test, and digestion time 3 min～10min has guaranteed that the bamboo fibre obtaining can meet manufacturing technique requirent; Step 2, drying process: the bamboo fibre raw material that defibrator process is gone out adds during through plasma discharge after soda acid auxiliary agent to be sent into and launch a surprise attack formula drying tube through 120 ℃～180 ℃ dry processing of hot-air, controls its moisture content 4%～9%; Step 3, paving process: according to product thickness, take appropriate bamboo fibre raw material, utilize mechanical vacuum to mat formation to carry out uniform feeding and mat formation; Step 4, pre-pressing process: the bamboo fibre raw material through mating formation, be transported to precompressed station and carry out precompressed, described precompressed station precompression, at 10～25 kg/cm2, by bamboo fibre compression exhaust, obtains having the slab of some strength, the mat moisture content 4～9% pressing in advance; Step 5, Sawing Process: according to the suitable slab of product length and width size sawing; Step 6, hot press forming technology: preformed base substrate is sent into door-plate mould, and mould has more actual door-plate top and bottom need to be arranged to have the upper/lower die of male and fomale(M&F), after matched moulds through hot press compression molding, 160 ℃～240 ℃ of hot pressing temperatures, hot pressing pressure 45kg/cm
2～95kg/cm
2, hot pressing time 6min～15min, obtains glueless bamboo fiber abnormity molded door skin after the demoulding.
Described soda acid auxiliary agent is sulfuric acid, hydrochloric acid, NaOH etc.The object of adding is to make the bamboo fibre raw material that defibrator process obtains can meet glue-free manufacturing technique requirent, is conducive to hemicellulose and is degraded into compound sugar.
By the chemical composition material in bamboo fibre, under HTHP, there is degraded and produce the low-molecular-weight material with natural gum stick nature in the present invention, then under temperature and pressure effect, undegradable bamboo fibre is bonded together, in the effect of door-plate mould once compression molding obtain having higher force learn performance and door-plate decorative pattern the glue-free door-plate of bamboo fibre.The production technology contrast of the more traditional door-plate of the present invention, has reduced a large amount of labours and manufacturing procedure, has saved production cost; Owing to making bamboo fibre molding bonded by degraded combination, in technique of the present invention, do not need to use adhesive, therefore reduced production cost and pollution.
Claims (3)
1. the preparation method of the glue-free door-plate of bamboo fibre, the method comprises the steps: step 1, the fine technique of defibrator process solution: will after fresh bamboo sawing burst, be immersed in Digesting stove, control 145 ℃～190 ℃ of boiling temperatures, digestion time 3 min～10min, finally obtains numb shape bamboo fibre; Step 2, drying process: the bamboo fibre raw material that defibrator process is gone out adds during through plasma discharge after soda acid auxiliary agent to be sent into and launch a surprise attack formula drying tube through 120 ℃～180 ℃ dry processing of hot-air, controls its moisture content 4%～7%; Step 3, paving process: according to product thickness, take appropriate bamboo fibre raw material, utilize mechanical vacuum to mat formation to carry out uniform feeding and mat formation; Step 4, pre-pressing process: the bamboo fibre raw material through mating formation, be transported to precompressed station and carry out precompressed, by bamboo fibre compression exhaust, obtain having the slab of some strength; Step 5, Sawing Process: according to the suitable slab of product length and width size sawing; Step 6, hot press forming technology: preformed base substrate is sent into door-plate mould, and mould has more actual door-plate top and bottom need to be arranged to have the upper/lower die of male and fomale(M&F), after matched moulds through hot press compression molding, 160 ℃～240 ℃ of hot pressing temperatures, hot pressing pressure 45kg/cm
2～95kg/cm
2, hot pressing time 6min～15min, obtains glue-free high-density bamboo fiber abnormity molded door skin after the demoulding.
2. the preparation method of the glue-free door-plate of a kind of bamboo fibre as claimed in claim 1, is characterized in that: described precompressed station precompression is at 10～25 kg/cm2.
3. the preparation method of the glue-free door-plate of a kind of bamboo fibre as claimed in claim 1, is characterized in that: described soda acid auxiliary agent is sulfuric acid, hydrochloric acid, NaOH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011414.4A CN103722604A (en) | 2014-01-10 | 2014-01-10 | Method for manufacturing bamboo fiber non-glued door plank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011414.4A CN103722604A (en) | 2014-01-10 | 2014-01-10 | Method for manufacturing bamboo fiber non-glued door plank |
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|---|---|
| CN103722604A true CN103722604A (en) | 2014-04-16 |
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| CN201410011414.4A Pending CN103722604A (en) | 2014-01-10 | 2014-01-10 | Method for manufacturing bamboo fiber non-glued door plank |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128123A (en) * | 2015-08-31 | 2015-12-09 | 安徽宏宇竹业科技股份有限公司 | Board press used for bamboo chip tests |
| CN106914967A (en) * | 2017-03-02 | 2017-07-04 | 浙江农林大学 | A kind of preparation method without glue recombining bamboo and without glue recombining bamboo |
| CN109228773A (en) * | 2018-10-24 | 2019-01-18 | 深圳嘉汉林业科技有限公司 | A kind of method and apparatus for wood skin bronze designs or patterns on fans, wooden furniture, etc. |
| CN110065129A (en) * | 2019-05-30 | 2019-07-30 | 浙江农林大学 | A method of plate is made using bamboo matter powder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128123A (en) * | 2015-08-31 | 2015-12-09 | 安徽宏宇竹业科技股份有限公司 | Board press used for bamboo chip tests |
| CN106914967A (en) * | 2017-03-02 | 2017-07-04 | 浙江农林大学 | A kind of preparation method without glue recombining bamboo and without glue recombining bamboo |
| CN109228773A (en) * | 2018-10-24 | 2019-01-18 | 深圳嘉汉林业科技有限公司 | A kind of method and apparatus for wood skin bronze designs or patterns on fans, wooden furniture, etc. |
| CN110065129A (en) * | 2019-05-30 | 2019-07-30 | 浙江农林大学 | A method of plate is made using bamboo matter powder |
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Application publication date: 20140416 |