CN1304483C - Method for producing wood flour micro-plastic wood-imitated products - Google Patents
Method for producing wood flour micro-plastic wood-imitated products Download PDFInfo
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- CN1304483C CN1304483C CNB2005100491004A CN200510049100A CN1304483C CN 1304483 C CN1304483 C CN 1304483C CN B2005100491004 A CNB2005100491004 A CN B2005100491004A CN 200510049100 A CN200510049100 A CN 200510049100A CN 1304483 C CN1304483 C CN 1304483C
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Abstract
The present invention relates to a method for producing wood powder micro-plastic wood imitated products. The method comprises the following steps: fully stirring and mixing 3 wt% to 5 wt% thermosetting resin, 94 wt % to 96 wt % of wood powder and 0.5 wt% to 0.8 wt % of gypsum powder; moulding and hot forming prepared wood powder micro-plastic materials by a hot pressing machine; producing wood imitated products by technical processes such as demoulding, coating, surface moulding, drying, polishing, bespreading, baking, etc. Not only the present invention uses commercial production to replace hand engraving and hand manufacture to produce wood imitated products such as pseudoclassic furniture or handicrafts, etc. in low cost, large yield and fine workmanship, but also produced wood imitated products can be naturally degraded without environmental pollution, and raw materials of wood powder can be branch wood, waste wood, old wood, etc. The present invention is favorable for protecting forest resources.
Description
Technical field
The present invention relates to a kind of method of mold pressing machine-shaping wood-imitated products, be meant that specifically the liquid thermosetting resin with wood powder and trace is blended in the manufacture method of carrying out hot pressing machine-shaping wood-imitated products in the mould.
Technical background
Along with the continuous improvement of people's living standard, people constantly increase the demand of wood furniture and other woodworks, and a large amount of trees are made valuable forest resources reduce day by day by felling, cause existent environment of people constantly to worsen.Though in the last few years; the enhancing of people's environmental consciousness and deepening continuously to the protection of forest reserves consciousness; people are alleviated the imbalance between supply and demand of timber in order to protect forest resources; employing is solved to mould for the flitch method; promptly make imitative Wood products and substitute former woodwork with plastics or plastics and some other material mixing, but because the resin content in this wood-imitated products is higher, thereby the production cost height; be difficult to natural degradation after the use, environment is polluted.Meanwhile, people also are tending towards variation to the design requirements of wood furniture, building decoration and artwork etc., have both pursued the simple modern designs of lines, also pursue the classical beauty and the traditional style of lines complexity, but the timber window door of classic unique structure and antique traditional furniture such as carving, carving screen, carving bed, artwork, the making of lamp decoration member etc. not only needs first-class timber but also mainly finishes with hand engraving, it is consuming time both to have taken a lot of work, and costs an arm and a leg again, and common people family is difficult to bear.Because traditional hand engraving workload is big, work with great care and often will pay at double work, economic interests and processing fineness particularly thorny causes product processing more coarse, different workman's technological disparities also make the stable poor of product, influence the quality of product.Existing in addition wood-imitated products uses extrusion process production, product to be mainly the single section bar of shape, sheet material.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, a kind of wood fiber powder made from unserviceable timber of other woodwork such as branch wood, dead and drying tree, leftover bits and pieces timber and waste and old timber is provided, carve, make by hand with the suitability for industrialized production instead of manual, it is low to produce cost, output is big, exquisite in workmanship, but natural degradation, the method for wood flour micro-plastic wood-imitated products free from environmental pollution.
Purpose of the present invention mainly is achieved through the following technical solutions.
A kind of manufacture method of wood flour micro-plastic wood-imitated products may further comprise the steps:
A, preparation material: it is 100% (weight) that the terra alba of the wood powder of the thermosetting resin of 3%-5% (weight), 94%-96% (weight), 0.5%-0.8% (weight) is fully mixed and make each composition sum, is mixed with the material of wood flour micro-plastic;
B, mold pressing hot briquetting: (a) mat formation: the material of wood flour micro-plastic is put into mould, (b) hot-forming: the material that will put into the mould wood flour micro-plastic with thermocompressor carries out hot-forming, condition of cure is that temperature is controlled at 125-130 degree centigrade, pressure is 2-3Mpa, be 55-65 second set time, (c) demoulding: with the work in-process demoulding that is cured;
C, pasting: the slurry that is mixed with urea-formaldehyde resin or modified phenolic resins 18%-22% (weight), stone flour 73%-77% (weight) and proper amount of gypsum is sprayed on the work in-process, and thickness is 0.2~1mm.;
D surface mold pressing: (a) make the resin former: with every kind of first work in-process that product is hot-forming, method is by hand draped over one's shoulders and is filled out putty, after sanded, turn over the resin former of making this product with unsaturated polyester, (b) surperficial mold pressing: the work in-process that coat slurry under half-dried state, in the resin former, carry out coining, make product on the basis that holds its shape, carry out the surface plasticizing;
E oven dry: the work in-process that surperficial mold pressing is handled well are dried;
F polishing: will dry half-finished surface finish;
The G coating: the water transfer technique, select the coating film of various patterns selectively for use, the various pure natural patterns of complete printing, native texture on the product surface of polishing;
H oven dry: dry after the product surface coating disposes.
As preferably, described thermosetting resin is a urea-formaldehyde resin, its preparation is that 10 weight parts of urea of content 97.8% and formaldehyde 32.2 weight parts of content 36.8% are mixed and made into urea-formaldehyde resin preshrunk liquid, after when producing, in preshrunk liquid, adding trimeric cyanamide 6.5 weight parts of industrial goods, add appropriate amount of NaOH, pH value is transferred between the 6.5-7.0, add the paraffin wax emulsions of 0.4 weight part then, add an amount of NH at last as required
4Cl.
As preferably, described thermosetting resin is a modified phenolic resins, and its preparation is to make after resol 4.3 weight parts and p-aminophenol 3.6 weight parts, Viscotrol C 1.8 weight parts and ethanol 80 weight parts are fully mixed.
As preferably, described wood powder is: length is 2~5mm, and diameter is the wood fiber powder of 0.1~0.3mm and flaxen fiber or oil palm fibre and the dehydrated gyp-(CaSO that length is 3~7mm
4) uniformly mix and make, water ratio is controlled at below 9%, and the addition of flaxen fiber or oil palm fibre is the 2-3% of wood fiber powder.
As preferably, described mould comprises counterdie, intermediate die and patrix, and counterdie is provided with several guide rods, connects by guide rod between the mould, and intermediate die and patrix are provided with the through hole that can pass guide rod, and counterdie is provided with demoulding jogger hole.
As preferably, described thermocompressor comprises frame, frame is provided with Vulcan gear up and down, Vulcan gear is connected with bottom platen with the upper holder that electrical heating element is housed respectively up and down, be provided with the intermediate mold anchor between upper holder and the bottom platen, upper holder is provided with the guide rod telescopic hole that passes through for the mould guide rod, and bottom platen is provided with the automatic demoulding throwing mechanism.
As preferably, the manufacture method of described a kind of wood flour micro-plastic wood-imitated products is characterized in that described mould makes with alumina.
Therefore, the manufacturing approach craft of wood flour micro-plastic wood-imitated products of the present invention is simple, and cost is low, compared with prior art has following characteristics:
1. because the terminal resin of wood flour micro-plastic is that plastics per-cent at place in wood powder is very little; and be evenly distributed in the surface of wood powder; in the natural degradation process of wood powder, can ignore basically; be degraded into the organic substance that does not have pollution together with the wood chip powder, help environment protection.2. furniture and other wood-imitated products of wood flour micro-plastic manufacturing not only make it the close performance of woodwork through surface treatment, even are better than common wood in hardness and resistance aspect of performance.3. the production of wood powder, raw material can be branch wood, tankage wood and waste and old timber and dead and drying tree and the unserviceable scrap stock wood of other woodwork, and not only cost reduces greatly, and can maximum turn waste into wealth with limiting the quantity of.To conserving forests and vegetation resources has immeasurable realistic meaning.4. because the wood flour micro-plastic product mainly is to chase the abundant embossment of the bigger and various subject matters of work content and engrave the imitative timber products of decorative effect intensive at manual.To make by hand and become suitability for industrialized production and can reduce cost greatly, enhance productivity exponentially, and make numerous and diverse, expensive pseudo-classic furniture or artwork move towards ordinary family.
Description of drawings
Fig. 1 is a mould structure synoptic diagram of the present invention;
Fig. 2 is a thermocompressor structural representation of the present invention.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1, and present embodiment comprises following concrete steps:
One, makes product mold and loading hopper
1. mould: Mould design is utilized computer technology, can be according to the requirement of product, design exquisite pattern and graceful smooth curve, because the working accuracy of wood flour micro-plastic goods need not very high, the engraving equipment of mould is selected for use to prepare advertising and just can be met the demands with computer engraving machine (the woodpecker board DLS-1225 type mechanical engraving machine that for example adopts Shanghai Luo Ke company to produce).Because the pressure of mould is less demanding, as long as the material of mould can bear 3Mpa, the temperature that ability is 150 ℃ gets final product, and it is more suitable therefore to select aluminium to make material, and the hardness of aluminium is not high, is easy to machining.Mould is mainly formed (as shown in Figure 1) by counterdie 1, intermediate die 2 and patrix 3 three parts, and three part moulds connect by guide rod 4 independently of one another, and an end of guide rod 4 is fixed on the counterdie 1, and intermediate die 2 and patrix 3 are provided with the through hole 5 that can pass guide rod 4.Counterdie 1 is provided with demoulding jogger hole 12.
2, loading hopper: surround the bucket of the tubular the same with the profile of mould with galvanized iron sheet, it highly is 4 times of product height, and as the thick 40mm of product, then the height of galvanized iron sheet is about 160-200mm.
Two, get the raw materials ready
1. preparation wood powder: at first branch wood is generally adopted in the preparation of wood fiber powder, and tankage wood and tr are produced unserviceable scrap stock wood etc., pulverizes technology such as rolling dehydration with wood powder machinery and makes fibrous wood powder.The preparation of wood fiber powder can own preparation also can directly be bought (for example going up the wood fiber powder that oceanic rise illuminate wood industry company produces) to professional production producer.The wood fiber powder finished product is generally length 2-5mm, and diameter is the powder filament of 0.1-0.3, and water ratio is controlled at below 9%.In order to make product vertically toughness reinforcing, also will add the staple fibre that is similar to wood fiber powder in wood fiber powder, the staple fibre that can add has a variety of, from the angle of environment degradable, selecting length is flaxen fiber or the oil palm fibre of 3-7mm, and addition is generally the 2-5% of wood fiber powder.In order to control the water ratio of product, need in wood fiber powder, to add dehydrated gyp-(SaSO
4) powder, addition is the 0.2%-0.6% of wood fiber powder.Can carry out smoothly when making the demoulding, also need add the paraffin of melting in wood fiber powder, the addition of paraffin is generally the 0.4-0.6% of wood fiber powder, at last they is stirred.
2. preparation thermosetting resin: available thermosetting resin has several, and present embodiment is selected urea-formaldehyde resin for use.10 weight parts of urea of content 97.8% and formaldehyde 32.2 weight parts of content 36.8% are mixed and made into urea-formaldehyde resin preshrunk liquid, after when producing, in preshrunk liquid, adding industrial goods trimeric cyanamide 6.5 weight parts, add appropriate amount of NaOH, pH value is transferred between the 6.5-7.0, the paraffin wax emulsions that adds 0.4 weight part then adds an amount of NH according to the curing speed needs at last
4Cl.(also can directly select commercially available urea-formaldehyde resin finished product for use)
Three, applying glue
It is 100% (weight) that the above thermosetting urea-formaldehyde resin 3%-5% (weight) for preparing is fully mixed and make each composition sum with the wood powder 94%-96% (weight), terra alba: the 0.5%-0.8% (weight) that prepare, is mixed with the material of wood flour micro-plastic.
Four, mold pressing hot briquetting
The mold pressing hot briquetting is finished by mould and special hot pressing machine.Thermocompressor (as shown in Figure 2) is that electric heating temperature control type thermocompressor comprises frame 6, frame 6 is provided with Vulcan gear 7 up and down, Vulcan gear 7 is connected with bottom platen 10 with the upper holder 8 that electrical heating element is housed respectively up and down, is provided with intermediate mold anchor 9 between upper holder 8 and the bottom platen 10; Upper holder is provided with the through hole bottom platen 10 that passes through for the mould guide rod and is provided with automatic demoulding throwing mechanism 11.
1, dress mould: on the upper holder and bottom platen that the backform and the bed die of mould is separately fixed at thermocompressor, intermediate die is fixed on the intermediate mold anchor of thermocompressor.
2, locked mode: start the bottom platen of thermocompressor, promote bed die, bed die closes up with the intermediate die of predetermined fixed on thermocompressor along the guide rod rising finishes locked mode.
3, mat formation: an end opening of loading hopper is lain on the smooth stainless steel plate, the material that adds the wood flour micro-plastic that mixes, be placed on the bobbing machine and after the vibration evenly it moved to the top of the intermediate die that is fixed on thermocompressor, take out stainless steel plate after aiming at intermediate die, material falls into bed die and intermediate die under the effect of gravity, finishes and mats formation.
4, hot-forming: the upper holder that starts thermocompressor drives backform and presses down and carry out hot-formingly, and condition of cure is that temperature is controlled at 125-130 degree centigrade, and pressure is 2-3Mpa, and be 55-65 second set time.
Five, the demoulding
Behind hot-forming the finishing, the bottom platen that starts thermocompressor drives bed die decline to be separated with intermediate die, and then the automatic demoulding mechanism that starts on the bottom platen ejects the product on the mould.Can on mould, spray releasing agent before the demoulding,, make the demoulding more smooth as methyl-silicone oil etc.
Six, pasting
Use urea-formaldehyde resin: the slurry that 18%-22% (weight), stone flour: 73%-77% (weight) and a small amount of gypsum (about 5% weight) are mixed with is sprayed on the work in-process, and thickness is 0.2~1mm..Pasting can be sprayed on slurry on the object to be processed equably with spraying equipment.
Seven, surperficial mold pressing
1. make the resin former: with every kind of first work in-process that product is hot-forming, method is by hand draped over one's shoulders and is filled out putty, after sanded, turns over the resin former (being exactly that a kind of mould that mould matches with product) of making this product with unsaturated polyester.
2. surperficial mold pressing: the work in-process that coat slurry under half-dried state, are carried out coining with common two guide pillar press with work in-process in the resin former, make product on the basis that holds its shape, carry out the surface plasticizing.
Eight, oven dry
The work in-process that surperficial mold pressing is handled well are dried the resin molding curing that makes the surface, reach certain rigidity and ridity.Oven dry can be carried out in drying room.
Nine, polishing
Throw the surface finish of wheel with the product of oven dry with the commercially available prod, throwing wheel is a kind of wheel brush of long filars.The effect of polishing is to make product have smooth, a mellow and full surface and a blocky basic body, helps guaranteeing the quality and the firmness of coating product.Also can product surface be polished with the hairbrush of other soft bristles.
Ten, coating
The water transfer printing is also named in coating, the analogous diagram line is curved draped, adopt three-dimensional water transfer technique, select the coating film of various patterns selectively for use, the various pure natural patterns of complete printing, texture etc. on the product surface of polishing are as the native texture of various famous and precious timber such as mahogany, red sandalwood, redwood, rosewood.
11, oven dry
After the product surface coating disposes, both can dry by above drying room, also can carry out under field conditions (factors), finished the making of whole prod.
Embodiment 2:
Repeat embodiment 1, the difference of present embodiment and embodiment 1 is as follows:
The present embodiment thermosetting resin is selected modified phenolic resins for use, and the thermosetting phenolic modified resin is prepared as: make after resol 4.3 weight parts and p-aminophenol 3.6 weight parts, Viscotrol C 1.8 weight parts and ethanol 80 weight parts are fully mixed.During applying glue resol 3%-4% (weight) fully being mixed and make each composition sum with the wood powder 95%-96% (weight), the terra alba 0.5%-0.8% (weight) that prepare is 100% (weight), is mixed with the wood flour micro-plastic material.
Claims (7)
1. the manufacture method of a wood flour micro-plastic wood-imitated products is characterized in that described method comprises:
A, preparation material: it is 100% (weight) that the terra alba of the wood powder of the thermosetting resin of 3%-5% (weight), 94%-96% (weight), 0.5%-0.8% (weight) is fully mixed and make each composition sum, is mixed with the material of wood flour micro-plastic;
B, mold pressing hot briquetting
(a) mat formation: the material of wood flour micro-plastic is put into mould;
(b) hot-forming: the material that will put into the mould wood flour micro-plastic with thermocompressor carries out hot-forming, and condition of cure is that temperature is controlled at 125-130 degree centigrade, and pressure is 2-3Mpa, and be 55-65 second set time;
(c) demoulding: with the work in-process demoulding that is cured;
C, pasting: the slurry that is mixed with urea-formaldehyde resin or modified phenolic resins 18%-22% (weight), stone flour 73%-77% (weight) and proper amount of gypsum is sprayed on the work in-process, and thickness is 0.2~1mm.;
D, surperficial mold pressing
(a) make the resin former: with every kind of first work in-process that product is hot-forming, method is by hand draped over one's shoulders and is filled out putty, after sanded, turns over the resin former of making this product with unsaturated polyester;
(b) surperficial mold pressing: the work in-process that coat slurry under half-dried state, are carried out coining in the resin former, make product on the basis that holds its shape, carry out the surface plasticizing;
E, oven dry: the work in-process that surperficial mold pressing is handled well are dried;
F, polishing: will dry half-finished surface finish;
G, coating: the water transfer technique, select the coating film of various patterns selectively for use, various pure natural patterns of complete printing or native texture on the product surface of polishing;
H, oven dry: dry after the product surface coating disposes.
2. the manufacture method of a kind of wood flour micro-plastic wood-imitated products according to claim 1, it is characterized in that described thermosetting resin is a urea-formaldehyde resin, its preparation is that 10 weight parts of urea of content 97.8% and formaldehyde 32.2 weight parts of content 36.8% are mixed and made into urea-formaldehyde resin preshrunk liquid, after when producing, in preshrunk liquid, adding trimeric cyanamide 6.5 weight parts of industrial goods, add appropriate amount of NaOH, pH value is transferred between the 6.5-7.0, the paraffin wax emulsions that adds 0.4 weight part then adds an amount of NH at last as required
4Cl.
3. the manufacture method of a kind of wood flour micro-plastic wood-imitated products according to claim 1, it is characterized in that described thermosetting resin is a modified phenolic resins, its preparation is to make after resol 4.3 weight parts and p-aminophenol 3.6 weight parts, Viscotrol C 1.8 weight parts and ethanol 80 weight parts are fully mixed.
4. the manufacture method of a kind of wood flour micro-plastic wood-imitated products according to claim 1, it is characterized in that described wood powder is: length is 2~5mm, and diameter is the wood fiber powder of 0.1~0.3mm and flaxen fiber or oil palm fibre and the dehydrated gyp-CaSO that length is 3~7mm
4Uniformly mix and make, water ratio is controlled at below 9%, and the addition of flaxen fiber or oil palm fibre is the 2-3% of wood fiber powder.
5. the manufacture method of a kind of wood flour micro-plastic wood-imitated products according to claim 1, it is characterized in that described mould comprises counterdie, intermediate die and patrix, counterdie is provided with several guide rods, connect by guide rod between the mould, intermediate die and patrix are provided with the through hole that can pass guide rod, and counterdie is provided with demoulding jogger hole.
6. the manufacture method of a kind of wood flour micro-plastic wood-imitated products according to claim 1, it is characterized in that described thermocompressor comprises frame, frame is provided with Vulcan gear up and down, Vulcan gear is connected with bottom platen with the upper holder that electrical heating element is housed respectively up and down, be provided with the intermediate mold anchor between upper holder and the bottom platen, upper holder is provided with the guide rod telescopic hole that passes through for the mould guide rod, and bottom platen is provided with the automatic demoulding throwing mechanism.
7. a kind of manufacture method of wood flour micro-plastic wood-imitated products according to claim 1 or 5 is characterized in that described mould makes with alumina.
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CNB2005100491004A CN1304483C (en) | 2005-02-07 | 2005-02-07 | Method for producing wood flour micro-plastic wood-imitated products |
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CN103192652A (en) * | 2012-01-04 | 2013-07-10 | 深圳比科斯电子股份有限公司 | Method for manufacturing crafts and ornaments by using coffee bean shells |
CN104875272B (en) * | 2015-06-08 | 2017-03-15 | 努尔买买提·吐松 | The method that waste material processing imitation wood carves part |
CN106891413A (en) * | 2017-03-07 | 2017-06-27 | 温汉明 | Color wood powder compression molding high density insulation board technique |
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JPS60130641A (en) * | 1983-12-19 | 1985-07-12 | Daiwa:Kk | Thermosetting resin composition for lacquer ware body |
JPH0733956A (en) * | 1993-07-21 | 1995-02-03 | Sumitomo Bakelite Co Ltd | Phenol resin molding material |
RU2098438C1 (en) * | 1996-07-02 | 1997-12-10 | Акционерная фирма "Токем" | Polymeric composition |
WO1999041472A1 (en) * | 1998-02-16 | 1999-08-19 | Yasutalou Fujii | Stone panel and its fitting structure |
CN1316323A (en) * | 2001-04-26 | 2001-10-10 | 北京嘉寓新型建材股份有限公司 | Technology for preparing colour plastic-wood section and pallet |
CN1328090A (en) * | 2001-07-03 | 2001-12-26 | 北京嘉寓新型建材股份有限公司 | Plastics-wood shutterings for building and its preparing process |
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2005
- 2005-02-07 CN CNB2005100491004A patent/CN1304483C/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS60130641A (en) * | 1983-12-19 | 1985-07-12 | Daiwa:Kk | Thermosetting resin composition for lacquer ware body |
JPH0733956A (en) * | 1993-07-21 | 1995-02-03 | Sumitomo Bakelite Co Ltd | Phenol resin molding material |
RU2098438C1 (en) * | 1996-07-02 | 1997-12-10 | Акционерная фирма "Токем" | Polymeric composition |
WO1999041472A1 (en) * | 1998-02-16 | 1999-08-19 | Yasutalou Fujii | Stone panel and its fitting structure |
CN1316323A (en) * | 2001-04-26 | 2001-10-10 | 北京嘉寓新型建材股份有限公司 | Technology for preparing colour plastic-wood section and pallet |
CN1328090A (en) * | 2001-07-03 | 2001-12-26 | 北京嘉寓新型建材股份有限公司 | Plastics-wood shutterings for building and its preparing process |
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