CN107775770A - A kind of method for controlling size-grade particleboard surface sophistication - Google Patents
A kind of method for controlling size-grade particleboard surface sophistication Download PDFInfo
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- CN107775770A CN107775770A CN201711025566.XA CN201711025566A CN107775770A CN 107775770 A CN107775770 A CN 107775770A CN 201711025566 A CN201711025566 A CN 201711025566A CN 107775770 A CN107775770 A CN 107775770A
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- China
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- sophistication
- steel slab
- slab surface
- air outlet
- surface sophistication
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Classifications
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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
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
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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
The method that the present invention provides the control size-grade particleboard surface sophistication that a kind of method is simple and convenient to operate.This method is that the aperture for going out air door up and down by adjusting pavement case tail wind balance plate upper and lower changes steel slab surface sophistication；On go out influence of the air door opening value to steel slab surface sophistication and go out influence of the air door opening value to steel slab surface sophistication significantly less than under；Under go out that throttle opening is bigger, and steel slab surface sophistication is poorer；Under go out throttle opening more under, steel slab surface sophistication is better.
Description
Technical field
The present invention relates to a kind of optimisation technique of Wood-based Panel Production technique, is a kind of control grading structure plane specifically
The method of card surface sophistication.
Background technology
Because size-grade particleboard intermediate layer is wooden force plane flower, levels are the fine and closely woven wooden wood wool of tissue, because
This, particieboard also has considerable intensity in addition to good environmental protection, holds nail performance and humidity resistance, obtains all trades and professions
Accreditation and utilization.At present, the major way of domestic wood shavings slab of mating formation is mated formation using particieboard Solution on Air Forming Equipment, but particieboard
The problem of how airflow pavement technology is to control steel slab surface sophistication is not solved effectively always.Airflow pavement particieboard
Process route mainly include screening, apply plane, mat formation, precompressed, hot pressing, cooling, cutting edge and sanding, process of mating formation directly affect slab
Final product quality.Surface sophistication is one very important quality evaluation index of Chipboard, and it refers to plate surface wood shavings
The fineness of grain fiber, is not easy to come unglued, ordinary circumstance lower surface is more thin better, but wood shavings for convenience of follow-up sanding and finished product
Connecting material of the plate as laminate, surface preciosity then can not kiss-coating, therefore the surface exquisiteness degree mated formation should be according to reality
Depending on demand, effective control to surface of chipboard sophistication is difficult to using traditional airflow pavement technology.Therefore, it is necessary to
Research and development new technology goes effectively solve control problem of the particieboard airflow pavement to steel slab surface sophistication.
The content of the invention
It is an object of the invention to provide the control size-grade particleboard surface sophistication that a kind of method is simple and convenient to operate
Method.
The method of control size-grade particleboard surface of the present invention sophistication, passes through adjusting pavement case tail wind
The aperture that balance plate upper and lower goes out air door up and down changes steel slab surface sophistication；On go out air door opening value to steel slab surface sophistication
Influence go out influence of the air door opening value to steel slab surface sophistication significantly less than under；Under bigger, the steel slab surface that goes out throttle opening
Sophistication is poorer；Under go out throttle opening more under, steel slab surface sophistication is better.
The method of above-mentioned control size-grade particleboard surface sophistication, air outlet aperture can with non-significant in increase
Steel slab surface sophistication is reduced, improves mat formation case airflow field airflow reflux and turbulent flow phenomenon, removes steel slab surface featheriness residual
Wood wool.
The method of above-mentioned control size-grade particleboard surface sophistication, if shavings raw material is not to be glued raw material, density
For 142kg/m3, influence of the upper and lower air outlet opening value to steel slab surface sophistication meet：X=-0.26Y1-0.416Y2+
146.257；Wherein, Y1Air outlet opening value in expression；Y2Represent lower air outlet opening value；X represents slab density after mating formation.
Beneficial effects of the present invention：
Steel slab surface sophistication and steel slab surface density are proportional, i.e., the big I of steel slab surface density is as steel slab surface
The good and bad judgment criteria of sophistication.Go out throttle opening up and down by adjusting to realize pair in particieboard airflow pavement production process
The control of slab sophistication, steel slab surface featheriness residual wood wool can be removed by adjusting upper air outlet aperture, is improved
The considerable degree of plate surface；The sophistication of slab is can control by adjusting lower air outlet aperture, lower aperture is bigger, slab sophistication
It is poorer, so as to meet requirement of the different industries different field to board quality.
Brief description of the drawings
Fig. 1 is particieboard Solution on Air Forming Equipment schematic diagram.
Fig. 2 is tail wind balance plate regulation schematic diagram.
Fig. 3 is Fig. 2 A-A sectional views（Schematic diagram）.
Fig. 4 is wind speed cloud charts on case afterbody cross section of mating formation.
Fig. 5 is that air outlet aperture --- slab pinpoints density polyol linear graph up and down.
Embodiment
It is the specific embodiment of the present invention below, but the invention is not limited in these embodiments, without departing from the present invention
Thought spirit and scope under the details and form of technical solution of the present invention are modified or replaced, these modifications and replace
Each fall within protection scope of the present invention.
Embodiment 1
As shown in figure 1, particieboard Solution on Air Forming Equipment includes case 7 of mating formation, positive pressure fan 1 is by being arranged on case anteriomedial of mating formation
Horizontal air door 3 and vertical air door 4 are set to the anterior air-supply of case of mating formation on the air supply duct between positive pressure fan 1 and case front portion of mating formation
It is equipped with air quantity uniform device 2；Top front of the outlet of chip metering device 5 positioned at case of mating formation；Negative-pressure air fan 10 is by mating formation
The upper and lower of case tail wind balance plate 8 it is upper and lower go out air door to case afterbody air draught of mating formation, negative-pressure air fan 10 and mat formation case afterbody it
Between air-suction duct on be provided with afterbody plate 9；It is plate blank conveying device 6 to mat formation below case.
Positive and negative pressure fan 1,10 starts, and metering device 5 is carried out down to shavings raw material after the interior flow field of case 7 of mating formation is stable
Material, distinguished and admirable act on for the air quantity uniform device 2 that shavings raw material is arrived realize sorting inside case of mating formation, force plane flower is in itself weight
The time on plate blank conveying device 6 is deposited in the presence of power earlier than wood wool；By adjusting air outlet up and down in pavement process
Aperture is distributed air-flow sucking-off amount up and down with realizing, so as to change flow behavior of the wood wool in whole flow field, wood wool sinks
The quality of how much decision steel slab surface sophistications of drop amount.
As shown in Figure 2,3, the method for control particieboard airflow pavement surface of the present invention sophistication, shavings raw material are
Raw material is not glued, and its density is 142kg/m3, particieboard Solution on Air Forming Equipment is adjusted to original state, put down by adjusting tail wind
Weigh plate, changes air outlet aperture up and down so that steel slab surface sophistication makees good and bad change.Tail wind balance plate 8 includes above opening
Adjustable plate 81, lower aperture regulation plate 82, activity load-bearing iron bar 83 etc. are spent, lower aperture regulation plate 92 welds with activity load-bearing iron bar 83
Into an entirety, by being realized in prompting of the casing external agency of mating formation to activity load-bearing iron bar 83 or decline to lower air outlet 86
Opening value H regulation.The groove of above-below direction extension is provided with upper aperture regulation plate 81, bolt 84 is through the groove upper aperture
Adjustable plate 81 is connected with lower aperture regulation plate 82, and loose bolts 84 can realize that aperture regulation plate is carried out along the groove in plate face
Regulation up and down, to change the upper opening value L of air outlet 85 regulation.Upper air outlet 85 is located at top edge and the paving of upper aperture regulation plate
Between the top surface of vanning 7, lower air outlet 86 is located at the top edge and plate blank conveying device 6 of lower aperture regulation plate（It is considered as spreading
The bottom surface of vanning）Between.
Experiment obtains air outlet up and down and opened by carrying out positioning and quantitative test to the stable slab density mated formation under state
Degree --- steel slab surface sophistication multiple linear relationship.As shown in figure 5, the oscillating curve can be fitted to multiple linear regression side
Journey：X=-0.26Y1-0.416Y2+146.257；Wherein, Y1Air outlet opening value L in expression, unit mm；Y2Represent lower air outlet
Opening value H, unit mm；X represents slab density after mating formation, units/kg/m3。
The main affecting parameters that steel slab surface sophistication is can be seen that from aperture value coefficient are lower air outlet opening value, are adjusted
The lower air outlet aperture of section can realize the control to steel slab surface sophistication, and lower air outlet aperture is bigger, and slab sophistication is poorer（Plate
Base superficial density is smaller）；Air outlet aperture is gone back in addition to non-significant control panel base sophistication on appropriate increase tail wind balance plate
Mat formation case airflow field airflow reflux and turbulent flow phenomenon can be improved, remove steel slab surface featheriness residual wood wool.
On case afterbody cross section as shown in Figure 4 of mating formation shown in wind speed cloud charts, High Speed Flow Field concentrates on case lower half of mating formation
Part, therefore lower air outlet aperture is more than upper air outlet aperture to slab density conspicuousness effect to slab density conspicuousness effect,
Meet conspicuousness regression coefficient Sig in table 2（Upper air outlet aperture）＞ Sig（Lower air outlet aperture）.
Table 1 is the test data model summary sheet of embodiment 1, wherein " adjustment R side " is 0.900 ＞ ＞ 0.60, represents linear
Fit equation is 90.0% with initial data degree of fitting, i.e. linear equation is good to the extent of reaction of True Data.
The test data model of table 1 collects
| Model | R | R side | Adjust R side | The error of standard estimation | Durbin-Watson |
| 1 | .960a | .921 | .900 | 4.7783 | 1.706 |
Table 2 is test data linear regression coeffficient, wherein the significance Sig ＜ 0.05 of upper and lower air outlet aperture, i.e., upper,
Lower air outlet aperture change can make a significant impact on slab density；Wherein variance expansion factor VIF ＜ 5, i.e., upper and lower air outlet
Synteny is not present between aperture variable.
The linear regression coefficient of table 2
Mated formation it has been found that changing shavings raw material in the state of upper and lower air outlet aperture is certain, test data occurs
Change, when shavings raw material density is smaller, upper and lower air outlet aperture --- steel slab surface sophistication（Steel slab surface density）Polynary line
Property figure line oscillation amplitude will become big；When shavings raw material density is bigger, upper and lower air outlet aperture --- steel slab surface sophistication is more
First linear graph linear osccilation amplitude will diminish；More ventilating fan frequency is mated formation in the state of upper and lower air outlet aperture is certain,
Test data will also change, when positive and negative pressure fan frequency reduces, upper and lower air outlet aperture --- steel slab surface sophistication
Multiple linear figure line oscillation amplitude will diminish；When positive and negative pressure fan frequency increases, upper and lower air outlet aperture --- slab table
Face sophistication multiple linear figure line oscillation amplitude will become big.Therefore, test data unit frequency and shavings raw material density with the wind
Change and change, but air outlet aperture is constant to the control law of slab density up and down, is universal law.
By using the fitting multiple linear regression equations can basis in wood shavings slab airflow pavement actual production process
Upper and lower air outlet aperture estimates mat formation steel slab surface exquisiteness angle value and its variation tendency, the production of mating formation to size-grade particleboard
With actual directive significance.
Claims (3)
1. a kind of method for controlling size-grade particleboard surface sophistication, it is characterized in that：Pass through adjusting pavement case tail wind
The aperture that balance plate upper and lower goes out air door up and down changes steel slab surface sophistication；On go out air door opening value to steel slab surface sophistication
Influence go out influence of the air door opening value to steel slab surface sophistication significantly less than under；Under bigger, the steel slab surface that goes out throttle opening
Sophistication is poorer；Under go out throttle opening more under, steel slab surface sophistication is better.
2. the method for control size-grade particleboard surface sophistication as claimed in claim 1, it is characterized in that：Air-out in increase
Mouth aperture can with non-significant reduce steel slab surface sophistication, improve mat formation case airflow field airflow reflux and turbulent flow phenomenon, remove
Steel slab surface featheriness remains wood wool.
3. the method for control size-grade particleboard surface sophistication as claimed in claim 1, it is characterized in that：If shavings raw material
Not to be glued raw material, density 142kg/m3, influence of the upper and lower air outlet opening value to steel slab surface sophistication meet：X=-
0.26Y1-0.416Y2+146.257；Wherein, Y1Air outlet opening value in expression；Y2Represent lower air outlet opening value；X represents paving
Slab density after dress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711025566.XA CN107775770A (en) | 2017-10-28 | 2017-10-28 | A kind of method for controlling size-grade particleboard surface sophistication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711025566.XA CN107775770A (en) | 2017-10-28 | 2017-10-28 | A kind of method for controlling size-grade particleboard surface sophistication |
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| Publication Number | Publication Date |
|---|---|
| CN107775770A true CN107775770A (en) | 2018-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711025566.XA Pending CN107775770A (en) | 2017-10-28 | 2017-10-28 | A kind of method for controlling size-grade particleboard surface sophistication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808024A (en) * | 2019-03-27 | 2019-05-28 | 南京林业大学 | Surface of chipboard flatness process adjustments System and method for based on two-dimensional detection |
| CN114474291A (en) * | 2021-12-09 | 2022-05-13 | 千年舟新材科技集团股份有限公司 | Fine material gradual-change paving method and paving system |
-
2017
- 2017-10-28 CN CN201711025566.XA patent/CN107775770A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808024A (en) * | 2019-03-27 | 2019-05-28 | 南京林业大学 | Surface of chipboard flatness process adjustments System and method for based on two-dimensional detection |
| CN114474291A (en) * | 2021-12-09 | 2022-05-13 | 千年舟新材科技集团股份有限公司 | Fine material gradual-change paving method and paving system |
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Application publication date: 20180309 |
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