CN101314236B - Method for producing environment friendly artificial board for production of furniture for children's education - Google Patents
Method for producing environment friendly artificial board for production of furniture for children's education Download PDFInfo
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- CN101314236B CN101314236B CN2008101328855A CN200810132885A CN101314236B CN 101314236 B CN101314236 B CN 101314236B CN 2008101328855 A CN2008101328855 A CN 2008101328855A CN 200810132885 A CN200810132885 A CN 200810132885A CN 101314236 B CN101314236 B CN 101314236B
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- glue
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- birch
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Abstract
The invention relates to a method for producing an environment-friendly hard board which is used for child education furniture. The method comprises the following steps of material preparation, glue blending, prepressing and molding, pressurization, heating and shaping, sanding, first gluing, first heat pressing and veneering, second gluing and second heat pressing and veneering, wherein, after the second glue coating, a board is subject to the processes which are the same as the prepressing and the heat pressing of the first gluing; after a second birch panel of a molded board is veneered and cooled, and the board is respectively subject to cutting by a lengthways edge sawing machine and a transverse edge sawing machine in order that a length and a width of the board reach the requirement of production regulation; the molded board is subject to secondary repairing by manpower and subject to polishing treatment, thereby obtaining the environment-friendly hard board with a flat and smooth surface. The environment-friendly hard board has the advantages of reducing the demand of birch in large quantities and the destroying degree caused by human beings to ecological balance, recycling renewable materials and resources and greatly reducing the demand of human being on logs.
Description
Technical field
The present invention relates to the sheet material manufacture field, relate in particular to a kind of production method that is used for the environment friendly artificial board of children education furniture production.
Background technology
Children education furniture, toy and teaching aid, particularly North America market in American-European market uses birch artificial multilayer glued board in a large number at present.Because the birch growth cycle is long, ecological bad border requires high, and birch is also fewer and feweri at the timber amount of savings in the whole world, and a large amount of felling also causes very big destruction to ecology, make simultaneously that also the manufacturing cost of artificial birch plate is more and more higher, more can not satisfy the demand of people birch artificial multilayer plate.
Summary of the invention
The purpose of this invention is to provide a kind of production method that is used for the environment friendly artificial board that children education furniture produces, with utilization again to the recovery of regrown material and resource, to a great extent satisfy demand to birch multi-layer sheet product.
The objective of the invention is to be achieved through the following technical solutions:
A kind of production method that is used for the environment friendly artificial board of children education furniture production may further comprise the steps:
Get the raw materials ready: with the branches of sawing leftover bits and pieces, saw rim charge, trees, wooden fork, saw rim charge by wood chipping equipment and chipper are chipped, flaking is less than 5mm length and width degree particle, stir to close with the sawing material again and laggardly go into feed bin and collect, collect and carry out drying after a certain amount of, the water content of the particle of crossing when drying is lower than 12% and just can carries out a sorting to this; Since chip and the flaking process in understand some greater than the bulky grain of 5mm the inside at material, in order to guarantee production quality and the quality that product is used, screen by double layer librate, bulky grain is chipped and the flaking process by wood chipping equipment, chipper after the collection once more with regard to reclaiming earlier;
Glue mixing: the above-mentioned process stipulation specification particle that reaches is carried out glue mixing by the ring type glue mixer, in order to guarantee the uniformity of glue mixing, each face that reaches each particle all enclose glue, glue consumption is generally every 100kg raw material and stirs with 10-12kg glue, described glue is E preferably
1Urea-formaldehyde glue, burst size of methanal is less than or equal to 9mg/100g;
Pre-molding: the raw material that process stirs is sent to and is carried out pre-molding through the roll-type preformer after the air-flowing type spreading machine is mated formation into flat board according to the requirement of producing dissimilar sizes;
The pressurized, heated typing: the buttress of process pre-molding reaches hot-forming size according to the dimensional requirement of product through briar, enter hot press by conveying device through no backing plate dress trigger, carry out the pressurized, heated typing, cool off the hot-forming off time of utilizing that arrives cooling reprint machine by automatic unloader;
Sanding: cooled profiled sheeting just carries out adhesion strength and the surface smoothness of panel of sanding with the assurance veneer by sander to the surface because the surface is too smooth, and the smooth of whole of plank must be controlled in the 0.1mm;
A gluing: the profiled sheeting through sanding carries out gluing as glue spreader on the central layer to the two sides of plank, and spread generally is controlled at 320g/m
2
Hot pressing veneer for the first time: carried out birch panel veneer after being coated with the central layer of glue, pre-molding through preformer, the hot pressing facing machine carries out hot pressing first time veneer on just can be directly after finishing precompressed, and hot pressing temperature is controlled between 110 ℃-120 ℃, and hot pressing 5 minutes is promptly plastic; After the nature cooling, prevent that through the birch panel being carried out a sanding and manually repairing the overlapping suture cracking phenomena has been arranged on the panel;
The secondary gluing: go up glue spreader once more and carry out second glue spreading, the glue consumption of second glue spreading will strictly more be controlled, and generally is controlled at 300g/m
2
The veneer of hot pressing for the second time: carry out the precompressed of same gluing behind the second glue spreading, the process that hot pressing is identical, after the plate secondary birch panel veneer cooling to be formed, cut out by cutting of vertical Sawing machine and horizontal Sawing machine respectively again, make the length and width of plate reach the requirement of producing regulation, then again with manually it being carried out the secondary repairing after carry out polishing, it is smooth to reach surfacing.
Beneficial effect of the present invention is: the present invention not only can make the demand of birch reduce in a large number, reduces the mankind for the ecological balance damage degree, and it is the utilization again to the recovery of regrown material and resource simultaneously, reduces human demand to log greatly; Also reduce production costs greatly simultaneously, satisfied American-European market that can be to a great extent is to the demand of birch multi-layer sheet product, and product has appearance tradition birch multi-layer sheet, can more reduce its intensity to cooperate and the processing needs.
The specific embodiment
The described production method that is used for the environment friendly artificial board of children education furniture production of present embodiment may further comprise the steps:
Get the raw materials ready: limb, wooden fork and the saw rim charge of branch, wooden fork and trees of purchasing sawing leftover bits and pieces, saw rim charge, the trees of various plywood factories, by the length and width degree particle that wood chipping equipment and chipper are chipped, flaking is less than 5mm, stir to close with the sawing material again and laggardly go into feed bin and collect, collect a certain amount of after, be fed into the rotator type drying machine by belt conveyor conveyer belt transmission and carry out drying, particle of crossing when drying and the water content before the sawing are lower than 12% and just can carry out a sorting to this; Since chip and the flaking process in understand some greater than the particle of 5mm the inside at material, in order to guarantee the production quality and the quality that product uses screened by double layer librate that large-scale particle is chipped and the flaking process by wood chipping equipment, chipper after the collection once more with regard to reclaiming earlier;
Glue mixing: the above-mentioned process stipulation specification particle that reaches is carried out glue mixing by the ring type glue mixer, be in order to guarantee the uniformity of glue mixing, each face that reaches each particle all enclose glue, glue consumption is generally every 100kg raw material and stirs with 10-12kg glue, safe in utilization in order to reach furniture, the use of glue necessarily is to use the environmental protection glue of the burst size of methanal standard that reaches various countries' regulation, and the glue that normally enters American-European market should be E
1Urea-formaldehyde glue, burst size of methanal is less than or equal to 9mg/100g;
Pre-molding: the crude rubber conveyer belt that process stirs enters and carries out pre-molding through the roll-type preformer after the air-flowing type spreading machine is mated formation into flat board according to the requirement of producing dissimilar sizes;
The pressurized, heated typing: the buttress of process pre-molding reaches hot-forming size according to the dimensional requirement of product through briar, enter hot press by conveying device through no backing plate dress trigger, carry out the pressurized, heated typing, because being the imitation birch, this profiled sheeting is used for the production of children education furniture, therefore decrement must be high, gel content is also wanted corresponding height, and the finished product panel density must be at 0.8g/cm
3More than, through the profiled sheeting of hot pressing, cool off the hot-forming off time of utilizing that arrives cooling reprint machine by automatic unloader;
Sanding: cooled profiled sheeting is because the surface is too smooth, just adhesion strength and the surface smoothness of sanding with the panel of assurance veneer carried out on the surface by sander, the smooth of whole of plank must be controlled in the 0.1mm, carry out thick surely sanding with 60 order coarse sand band paper sandings at the heavy sander of sand frame up and down, to guarantee the flatness uniformity of finished product;
A gluing: the profiled sheeting through sanding carries out gluing as glue spreader on the central layer to the two sides of plank, and spread generally is controlled at 320g/m
2Owing to fully glue together through amplifying after the central glue consumption of central layer production process is excessive through glue behind the high temperature and wood fragments grain, the plank integral color is crossed dark similitude more in order to ensure plank and former birch, makes this sheet material more approximate even same like the birch multi-layer sheet by two layers of birch panel; The glue amount must be controlled well and serious seep through phenomenon can not occur, otherwise can have shade to appear at the superiors' panel when the secondary veneer;
Hot pressing veneer for the first time: carried out veneer on the birch panel after being coated with the central layer of glue, pre-molding through preformer, the generally control of time about 30 minutes of moulding squeeze time, mainly decide according to temperature, general summer high temperature squeeze time is short, also prolongation accordingly of the low more squeeze time of temperature along with air, the hot pressing facing machine carries out hot pressing first time veneer on just can be directly after finishing precompressed, hot pressing temperature is controlled between 110 ℃-120 ℃, hot pressing 5 minutes is promptly plastic, after the nature cooling, through on the sander birch panel being carried out a sanding and is manually repairing preventing that the overlapping suture cracking phenomena has been arranged on the panel with 80 order abrasive bands, if find and must repair with seccotine, otherwise to the second time veneer the formation plate face influential;
The secondary gluing: go up glue spreader once more and carry out second glue spreading, the glue consumption of second glue spreading will strictly more be controlled, and generally is controlled at 300g/m
2, make it the seep through phenomenon not to take place, can produce water stain the same spot and patch in case the surface of seep through plate occurs, can influence the presentation quality of plate face greatly;
The veneer of hot pressing for the second time: carry out the precompressed of same gluing behind the second glue spreading, the process that hot pressing is identical, after the plate secondary birch panel veneer cooling to be formed, cut out by cutting of vertical Sawing machine and horizontal Sawing machine respectively again, make the length and width of plate reach the requirement of producing regulation, the size of general conventional plate is long, wide 2440mm respectively, 1220mm, the tolerance of clipping edge is necessary for the error of catercorner length less than 3mm, then again with manually it being carried out carrying out polishing through the normal sands ray machine with 180 purpose abrasive bands after secondary is repaired, it is smooth to reach surfacing, profiled sheeting up and down two just can reach approximate birch multi-layer sheet;
Because this product is the multiple-plate substitute products of birch of children education furniture, so to cutting the profiled sheeting that the limit reaches given size, the birch plate thickness of producing use is generally at 1-1.22mm, semi-finished product after hacking are carried out edge sealing to be handled, it is bonding that edge sealing will adopt PUR that the birch slab is carried out with this product by high-quality edge banding machine, reaches the effect of real approximate fully birch solid wood.
Claims (4)
1. a production method that is used for the environment friendly artificial board of children education furniture production is characterized in that, may further comprise the steps:
Get the raw materials ready: with the branches of sawing leftover bits and pieces, saw rim charge, trees, wooden fork, saw rim charge by wood chipping equipment and chipper are chipped, flaking is less than 5mm length and width degree particle, stir to close with the sawing material again and laggardly go into feed bin and collect, collect and carry out drying after a certain amount of, the water content of the particle of crossing when drying is lower than 12% and just this is once screened;
Glue mixing: the above-mentioned process stipulation specification particle that reaches is carried out glue mixing by the ring type glue mixer, in order to guarantee the uniformity of glue mixing, each face that reaches each particle all enclose glue;
Pre-molding: the raw material that process stirs is sent to and is carried out pre-molding through the roll-type preformer after the air-flowing type spreading machine is mated formation into flat board according to the requirement of producing dissimilar sizes;
The pressurized, heated typing: the buttress of process pre-molding reaches hot-forming size according to the dimensional requirement of product through briar, enter hot press by conveying device through no backing plate dress trigger, carry out the pressurized, heated typing, cool off the hot-forming off time of utilizing that arrives cooling reprint machine by automatic unloader;
Sanding: cooled profiled sheeting just carries out adhesion strength and the surface smoothness of panel of sanding with the assurance veneer by sander to the surface because the surface is too smooth, and the smooth of whole of profiled sheeting must be controlled in the 0.1mm;
A gluing: the profiled sheeting through sanding carries out gluing as glue spreader on the central layer to the two sides of profiled sheeting, and spread generally is controlled at 320g/m
2
Hot pressing veneer for the first time: carried out birch panel veneer after being coated with the central layer of glue, pre-molding through preformer, carry out hot pressing first time veneer with regard to hot pressing facing machine on directly after finishing precompressed, hot pressing temperature is controlled between 110 ℃-120 ℃, and hot pressing 5 minutes is promptly plastic; After the nature cooling, through the birch panel being carried out a sanding and artificial the repairing;
The secondary gluing: go up glue spreader once more and carry out second glue spreading, the glue consumption of second glue spreading will strictly more be controlled, and generally is controlled at 300g/m
2
The veneer of hot pressing for the second time: carry out the identical process of gluing behind the second glue spreading same time, after the plate secondary birch panel veneer cooling to be formed, cut out by cutting of vertical Sawing machine and horizontal Sawing machine respectively again, make the length and width of plate reach the requirement of producing regulation, then again with manually it being carried out the secondary repairing after carry out polishing, it is smooth to reach surfacing.
2. the production method that is used for the environment friendly artificial board of children education furniture production according to claim 1; it is characterized in that; in material preparation step: screen by double layer librate, chip and the flaking process by wood chipping equipment, chipper once more after will collecting greater than the recovery of 5mm length and width degree particle.
3. the production method that is used for the environment friendly artificial board of children education furniture production according to claim 1, it is characterized in that, in the glue mixing step: glue consumption stirs with 10-12kg glue for the 100kg raw material, and described glue is the E1 urea-formaldehyde glue, and burst size of methanal is less than or equal to 9mg/100g.
4. according to each described production method that is used for the environment friendly artificial board of children education furniture production of claim 1-3, it is characterized in that in secondary hot pressing veneer step: described birch plate thickness is 1-1.22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101328855A CN101314236B (en) | 2008-07-15 | 2008-07-15 | Method for producing environment friendly artificial board for production of furniture for children's education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101328855A CN101314236B (en) | 2008-07-15 | 2008-07-15 | Method for producing environment friendly artificial board for production of furniture for children's education |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101314236A CN101314236A (en) | 2008-12-03 |
| CN101314236B true CN101314236B (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101328855A Expired - Fee Related CN101314236B (en) | 2008-07-15 | 2008-07-15 | Method for producing environment friendly artificial board for production of furniture for children's education |
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Families Citing this family (1)
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| CN110341004A (en) * | 2019-07-15 | 2019-10-18 | 天津海源汇科技有限公司 | A kind of application technique of glued board plant fiber adhesive |
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- 2008-07-15 CN CN2008101328855A patent/CN101314236B/en not_active Expired - Fee Related
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Granted publication date: 20110112 Termination date: 20130715 |