CN104526827A - Wood fiber special shaped workpiece laminated thermal fixation method - Google Patents
Wood fiber special shaped workpiece laminated thermal fixation method Download PDFInfo
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- CN104526827A CN104526827A CN201410818660.0A CN201410818660A CN104526827A CN 104526827 A CN104526827 A CN 104526827A CN 201410818660 A CN201410818660 A CN 201410818660A CN 104526827 A CN104526827 A CN 104526827A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/18—Manufacture or reconditioning of specific semi-finished or finished articles of furniture or of doors
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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
- B27N5/00—Manufacture of non-flat articles
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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
A wood fiber special shaped workpiece laminated thermal fixation method belongs to the technical field of wood material deep processing. The method comprises the steps of drying, layering measuring, front surface layer cold pressing, inverse surface cold pressing, bonding for the front surface layer and the inverse surface layer, and hot-pressing and the like. The method can manufacture wood fiber furniture pieces with property not worse than that of solid wood. The method enables surface layer pattern and inverse layer body of wood fiber pre-pressing piece to be laid independently, and cold-pressing molded separately and then hot-pressing molded again, so that the cold pressing thickness and the used wood fiber quantity of the surface layer patterns are reduced, the pressing difficulty is lowered, the cold pressing quality of the surface layer patterns is improved, the density and hardness of the surface layer patterns pressed meet the requirement, and the surface layer patterns are distinct and have layering.
Description
Technical field
The invention belongs to wood materials deep process technology field, particularly relate to a kind of manufacture method of wood-fibred shaped piece.
Background technology
Along with social progress, improving constantly of people's living standard, also constantly increases the consumption demand of high-grade wood furniture.Traditional solid sawn furniture, with the vision of its grace, comfortable sense of touch, has overwhelming superiority in high-end household consumption.But there are the following problems for solid wood furniture: (1) timber resources is deficient, and traditional solid sawn furniture needs at substantial log material, and China is faced with timber resource shortage phenomenon at present; (2) log utilization rate is low, and the log utilization rate of solid wood furniture only about 35%, exacerbates a large amount of consumption and the waste of timber resources further; (3) production efficiency is low, and traditional solid sawn Furniture manufacturing technique is more complicated, and current production equipment can not meet the demand of high efficiency production, and especially high-end European Furniture manufacture, needs by manually having carved.Add cost of labor on the one hand, cause the manufacturing cycle to extend on the other hand.Therefore, the problems such as the timber resources existed in above-mentioned antique traditional furniture industry is deficient, manufacturing technology is backward, productivity effect is low, labour cost is high, make traditional solid sawn furniture be difficult to enter general common people family.Wood-fibred adopts to cut down surplus small diameter grade brush wood, wood machining residues or other non-lignocellulose plant fibre raw materials, according to the requirement of fiber separation technology and equipment, by peeling, chip, screen, the process such as cleaning, obtained through defibrator process solution fibre.Existing wood-fibred abnormity mould pressing technology to have the furniture parts of carved pattern, utilizes the mold pressing under the effect of pressure, temperature, time of wood-fibred raw material, adhesive to obtain furniture.Because wood-fibred does not possess flowing fillibility, the features such as low, the shaping compression ratio of freely settled density large (about 50:1), therefore decorative pattern fluctuating place compact density is lower, and hardness and surface quality cannot meet the demands.
Summary of the invention
The present invention is directed to deficiency of the prior art, provide a kind of wood-fibred shaped piece lamination thermal curing methods, the pattern for surface of wood-fibred pre-press and backing layer body are independently mated formation by this method, carry out cold moudling separately, and then carry out once hot-forming, which reduce cold pressing thickness and the wood-fibred consumption of pattern for surface, reduce compression difficulty, improve pattern for surface to cold pressing quality, pattern for surface place is met the requirements by the density after compressing and hardness, make pattern for surface clear, there is stereovision.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals, a kind of wood-fibred shaped piece lamination thermal curing methods, comprise following step: A): wood fiber raw material is sent in heated-air drying pipeline and carries out drying by hot-air, baking temperature is between 90 DEG C ~ 160 DEG C, and the moisture content of the described wood fiber raw material of dry complete rear control is between 4% ~ 12%; B): piece of furniture finished product is divided into top layer and backing layer two parts, with the three-dimensional pattern of described piece of furniture on described top layer, simultaneously according to target density and the target volume of described top layer and described backing layer, the top layer wood fiber raw material quality taking quantitative drying complete is divided and backing layer wood fiber raw material; C): described top layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure that in cold pressure procedure, wood-fibred bears is at 10kg/cm
2~ 60kg/cm
2between, pressing time between 2min-25min, the top layer pre-press that rear taking-up of having colded pressing suppresses; D): described backing layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure that in cold pressure procedure, wood-fibred bears is at 5kg/cm
2~ 35kg/cm
2between, pressing time between 1 min-12min, the backing layer pre-press that rear taking-up of having colded pressing suppresses; E): described top layer pre-press and described backing layer pre-press binded by adhesive and form blank pre-press, wherein said backing layer precompressed is positioned at above described blank pre-press, described top layer pre-press be positioned at below blank pre-press; F): described blank pre-press is put into corresponding mould and carries out hot pressing, hot pressing temperature is between 105 DEG C ~ 160 DEG C, and the hot pressing pressure that wood-fibred bears is at 20kg/cm
2~ 100kg/cm
2between, hot pressing time, between 2 min ~ 26min, obtains wood-fibred pressing after hot pressing is complete.
In technique scheme, preferably, in described steps A, baking temperature is 150 DEG C, and the water rate of the described wood fiber raw material of dry complete rear control is 8%.
In technique scheme, preferably, in described step C, described top layer wood fiber raw material quality is divided when being colded pressing, and the pressure that wood-fibred bears is 30kg/cm
2, pressing time is 15min.
In technique scheme, preferably, in described step D, described backing layer wood fiber raw material quality is divided when being colded pressing, and the pressure that wood-fibred bears is 20kg/cm
2, pressing time is 8min.
In technique scheme, preferably, in described step F, when described blank pre-press is carried out hot pressing, hot pressing temperature is 120 DEG C, and the hot pressing pressure that wood-fibred bears is 80kg/cm
2, hot pressing time is 12min.
In technique scheme, preferably, in described step e, described adhesive is that modified urea-formaldehyde resin glue sticks agent, phenolic resin adhesive, melamine resin adehsive stick in agent one or more.
In technique scheme, preferably, in described step B, top layer described in backing layer described in several and one can be divided into according to the thickness of described piece of furniture.
The inventive method is a kind of method utilizing wood-fibred to manufacture special-shaped piece of furniture, and allows wood-fibred piece of furniture have can to compare the hardness of solid wood furniture part and decorative pattern expressive force.In the actual production of wood-fibred, wood-fibred freely settled density is low, without any mobility, after wood-fibred raw material drying, applying glue, metering, once mats formation and is cold-pressed into blank, then put it into mould heat pressure shaping.But the carved pattern place density that on produced like this wood-fibred furniture, third dimension is stronger is poor, and intensity and hardness are also undesirable, more easily occur deformation after making moist.The present invention is divided into top layer and backing layer two parts piece of furniture finished product for this reason, separately these two parts are colded pressing work, owing to divide into two parts, the thickness of every part all greatly reduces, reduce the difficulty of colding pressing, especially the dapple top layer of tool is reached desired standard by the density and hardness at the strong carved pattern place of third dimension after colding pressing.In the process of colding pressing, no matter the thickness of piece of furniture is how many, and the thickness on top layer can remain between 2mm ~ 12mm, and remaining thickness of piece of furniture can decompose by several backing layers.By adhesive, top layer and backing layer are sticked after having colded pressing, and then carry out hot pressing, hot pressing, for improving the mechanical property of wood-fibred piece of furniture, increases hardness and inner viscosity, and adhesive is solidified, just define last wood-fibred pressing after hot pressing completes.Wood-fibred pressing is high by this method surface detail Forming Quality; Total quality and hardness and decorative pattern expressive force carve shaping piece of furniture no less than solid wood, but then well below solid wood part on cost.
The pattern for surface of wood-fibred pre-press and backing layer body are independently mated formation by this method, carry out cold moudling separately, and then carry out once hot-forming, which reduce cold pressing thickness and the wood-fibred consumption of pattern for surface, reduce compression difficulty, improve pattern for surface and to cold pressing quality, pattern for surface place is met the requirements by the density after compressing and hardness, make pattern for surface clear, there is stereovision.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
Embodiment 1: a kind of wood-fibred shaped piece lamination thermal curing methods, comprise following step: A): wood fiber raw material is sent in heated-air drying pipeline and carries out drying by hot-air, baking temperature 90 DEG C, the water rate 4% of the described wood fiber raw material of dry complete rear control; B): piece of furniture finished product is divided into top layer and backing layer two parts, with the three-dimensional pattern of described piece of furniture on described top layer, simultaneously according to target density and the target volume of described top layer and described backing layer, the top layer wood fiber raw material quality taking quantitative drying complete is divided and backing layer wood fiber raw material; C): described top layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure 10kg/cm that in cold pressure procedure, wood-fibred bears
2, pressing time 2min, the top layer pre-press that rear taking-up of having colded pressing suppresses; D): described backing layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure 5kg/cm that in cold pressure procedure, wood-fibred bears
2, pressing time 1 min, the backing layer pre-press that rear taking-up of having colded pressing suppresses; E): described top layer pre-press and described backing layer pre-press are sticked agent by modified urea-formaldehyde resin glue and binds formation blank pre-press, wherein said backing layer precompressed is positioned at above described blank pre-press, described top layer pre-press be positioned at below blank pre-press; F): described blank pre-press is put into corresponding mould and carries out hot pressing, hot pressing temperature 105 DEG C, the hot pressing pressure 20kg/cm that wood-fibred bears
2, hot pressing time 2 min, obtains wood-fibred pressing after hot pressing is complete.
Embodiment 2: a kind of wood-fibred shaped piece lamination thermal curing methods, comprise following step: A): wood fiber raw material is sent in heated-air drying pipeline and carries out drying by hot-air, baking temperature 160 DEG C, the water rate 12% of the described wood fiber raw material of dry complete rear control; B): piece of furniture finished product is divided into top layer and two backing layer three parts, with the three-dimensional pattern of described piece of furniture on described top layer, simultaneously according to target density and the target volume of described top layer and described backing layer, the top layer wood fiber raw material quality taking quantitative drying complete is divided and backing layer wood fiber raw material; C): described top layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure 60kg/cm that in cold pressure procedure, wood-fibred bears
2, pressing time 25min, the top layer pre-press that rear taking-up of having colded pressing suppresses; D): described backing layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure 35kg/cm that in cold pressure procedure, wood-fibred bears
2, pressing time 12min, the backing layer pre-press that rear taking-up of having colded pressing suppresses; E): described top layer pre-press and described backing layer pre-press are sticked agent composition by phenolic resin adhesive, melamine resin adehsive and binds formation blank pre-press, wherein said backing layer precompressed is positioned at above described blank pre-press, described top layer pre-press be positioned at below blank pre-press; F): described blank pre-press is put into corresponding mould and carries out hot pressing, hot pressing temperature 160 DEG C, the hot pressing pressure 100kg/cm that wood-fibred bears
2, hot pressing time 26min, obtains wood-fibred pressing after hot pressing is complete.
Embodiment 3: a kind of wood-fibred shaped piece lamination thermal curing methods, comprise following step: A): wood fiber raw material is sent in heated-air drying pipeline and carries out drying by hot-air, baking temperature 150 DEG C, the water rate 8% of the described wood fiber raw material of dry complete rear control; B): piece of furniture finished product is divided into top layer and three backing layer four parts, with the three-dimensional pattern of described piece of furniture on described top layer, simultaneously according to target density and the target volume of described top layer and described backing layer, the top layer wood fiber raw material quality taking quantitative drying complete is divided and backing layer wood fiber raw material; C): described top layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure 30kg/cm that in cold pressure procedure, wood-fibred bears
2, pressing time 15min, the top layer pre-press that rear taking-up of having colded pressing suppresses; D): described backing layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure 20kg/cm that in cold pressure procedure, wood-fibred bears
2, pressing time 8min, the backing layer pre-press that rear taking-up of having colded pressing suppresses; E): described top layer pre-press and described backing layer pre-press are sticked agent, phenolic resin adhesive and melamine resin adehsive by modified urea-formaldehyde resin glue and sticks agent composition bonding formation blank pre-press, wherein said backing layer precompressed is positioned at above described blank pre-press, described top layer pre-press be positioned at below blank pre-press; F): described blank pre-press is put into corresponding mould and carries out hot pressing, hot pressing temperature 120 DEG C, the hot pressing pressure 80kg/cm that wood-fibred bears
2, hot pressing time 12min, obtains wood-fibred pressing after hot pressing is complete.
Claims (7)
1. a wood-fibred shaped piece lamination thermal curing methods, is characterized in that comprising following step:
A): wood fiber raw material is sent in heated-air drying pipeline and carries out drying by hot-air, baking temperature is between 90 DEG C ~ 160 DEG C, and the moisture content of the described wood fiber raw material of dry complete rear control is between 4% ~ 12%;
B): piece of furniture finished product is divided into top layer and backing layer two parts, with the three-dimensional pattern of described piece of furniture on described top layer, simultaneously according to target density and the target volume of described top layer and described backing layer, the top layer wood fiber raw material quality taking quantitative drying complete is divided and backing layer wood fiber raw material;
C): described top layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure that in cold pressure procedure, wood-fibred bears is at 10kg/cm
2~ 60kg/cm
2between, pressing time between 2min-25min, the top layer pre-press that rear taking-up of having colded pressing suppresses;
D): described backing layer wood fiber raw material quality is divided and puts into corresponding mould and cold pressing, the pressure that in cold pressure procedure, wood-fibred bears is at 5kg/cm
2~ 35kg/cm
2between, pressing time between 1 min-12min, the backing layer pre-press that rear taking-up of having colded pressing suppresses;
E): described top layer pre-press and described backing layer pre-press binded by adhesive and form blank pre-press, wherein said backing layer precompressed is positioned at above described blank pre-press, described top layer pre-press be positioned at below blank pre-press;
F): described blank pre-press is put into corresponding mould and carries out hot pressing, hot pressing temperature is between 105 DEG C ~ 160 DEG C, and the hot pressing pressure that wood-fibred bears is at 20kg/cm
2~ 100kg/cm
2between, hot pressing time, between 2 min ~ 26min, obtains wood-fibred pressing after hot pressing is complete.
2. a kind of wood-fibred shaped piece lamination thermal curing methods according to claim 1, it is characterized by, in described steps A, baking temperature is 150 DEG C, and the water rate of the described wood fiber raw material of dry complete rear control is 8%.
3. a kind of wood-fibred shaped piece lamination thermal curing methods according to claim 1, is characterized by, and in described step C, described top layer wood fiber raw material quality is divided when being colded pressing, and the pressure that wood-fibred bears is 30kg/cm
2, pressing time is 15min.
4. a kind of wood-fibred shaped piece lamination thermal curing methods according to claim 1, is characterized by, and in described step D, described backing layer wood fiber raw material quality is divided when being colded pressing, and the pressure that wood-fibred bears is 20kg/cm
2, pressing time is 8min.
5. a kind of wood-fibred shaped piece lamination thermal curing methods according to claim 1, it is characterized by, in described step F, when described blank pre-press is carried out hot pressing, hot pressing temperature is 120 DEG C, and the hot pressing pressure that wood-fibred bears is 80kg/cm
2, hot pressing time is 12min.
6. a kind of wood-fibred shaped piece lamination thermal curing methods according to claim 1, is characterized by, in described step e, described adhesive is that modified urea-formaldehyde resin glue sticks agent, phenolic resin adhesive, melamine resin adehsive stick in agent one or more.
7. a kind of wood-fibred shaped piece lamination thermal curing methods according to claim 1, is characterized by, and in described step B, can be divided into top layer described in backing layer described in several and one according to the thickness of described piece of furniture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410818660.0A CN104526827B (en) | 2014-12-25 | 2014-12-25 | A kind of wood-fibred shaped piece lamination thermal curing methods |
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|---|---|---|---|
| CN201410818660.0A CN104526827B (en) | 2014-12-25 | 2014-12-25 | A kind of wood-fibred shaped piece lamination thermal curing methods |
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| CN104526827A true CN104526827A (en) | 2015-04-22 |
| CN104526827B CN104526827B (en) | 2017-07-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308934A (en) * | 2014-09-23 | 2015-01-28 | 李应杰 | Method for manufacturing fraxinus chinensis rod furniture |
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| CN102756414A (en) * | 2012-06-29 | 2012-10-31 | 宁波大世界家具研发有限公司 | Equipment and method for manufacturing wood fiber abnormal-shaped die pressing piece |
| CN102862206A (en) * | 2012-08-31 | 2013-01-09 | 苏州博云塑业有限公司 | Wood fiber composite board and preparation technology thereof |
| CN103737699A (en) * | 2014-01-10 | 2014-04-23 | 宁波大世界家具研发有限公司 | Specially shaped wood fiber molded product enclosed forming method |
-
2014
- 2014-12-25 CN CN201410818660.0A patent/CN104526827B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0688639A2 (en) * | 1994-06-20 | 1995-12-27 | Masonite Corporation | Molded wood composites having non-blistering profile with uniform paintability and nesting |
| JPH10286808A (en) * | 1997-04-11 | 1998-10-27 | Inax Corp | Woody molded board |
| CN1250718A (en) * | 1998-09-26 | 2000-04-19 | 普雷马克Rwp控股公司 | Rigid surface and 3-D characterised layered products, and method for making same |
| CN1277094A (en) * | 1999-06-14 | 2000-12-20 | 株式会社森精馆 | Superposed processing method for wood fibre board |
| CN102756414A (en) * | 2012-06-29 | 2012-10-31 | 宁波大世界家具研发有限公司 | Equipment and method for manufacturing wood fiber abnormal-shaped die pressing piece |
| CN102862206A (en) * | 2012-08-31 | 2013-01-09 | 苏州博云塑业有限公司 | Wood fiber composite board and preparation technology thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104308934A (en) * | 2014-09-23 | 2015-01-28 | 李应杰 | Method for manufacturing fraxinus chinensis rod furniture |
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| CN104526827B (en) | 2017-07-18 |
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