CN107599117B - A method of control size-grade particleboard edge blanking wood shavings expulsion amount - Google Patents
A method of control size-grade particleboard edge blanking wood shavings expulsion amount Download PDFInfo
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- CN107599117B CN107599117B CN201711030617.8A CN201711030617A CN107599117B CN 107599117 B CN107599117 B CN 107599117B CN 201711030617 A CN201711030617 A CN 201711030617A CN 107599117 B CN107599117 B CN 107599117B
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Abstract
The easy, method that can control size-grade particleboard edge blanking wood shavings expulsion amount easy to adjust that the present invention provides a kind of method.This method is, by changing the aperture of the vertical air door of edge, to adjust slab edge blanking wood shavings expulsion amount when one timing of positive pressure fan delivery that is, by increasing or reducing the vertical throttle opening of edge and increase or decrease slab edge blanking wood shavings expulsion amount.
Description
Technical field
The present invention relates to a kind of optimisation techniques of Wood-based Panel Production technique, specifically, being using particieboard airflow pavement
When machine produces particieboard, the method for control size-grade particleboard edge blanking wood shavings expulsion amount.Increasing side using this method
It is close that production board edge is improved when wood shavings expulsion amount is expected by clan, while size-grade particleboard base edge shearing displacement can be reduced again
Solidity.
Background technique
The process route of airflow pavement particieboard mainly include screening, apply plane, mat formation, precompressed, hot pressing, cooling, cutting edge and
Sanding, according to the actual situation, the particieboard Solution on Air Forming Equipment of different size mat formation same specification particieboard after in cutting edge process
In more or less raw material can be caused to waste, cutting edge amount is few, and then production board edge compactness cannot ensure, lead to edge structure
Loosely, edge bitch power is poor；Cutting edge amount mostly wastes raw material and influences production board specification, and little waste and production board are being pursued by manufacturer
Relax while edge compactness machine mat formation face method cost it is even more huge.Therefore, it is necessary to research and develop new process to go to solve wave
The problems such as expense raw material and insufficient size-grade particleboard edge compactness, becomes especially urgent.
Summary of the invention
The object of the present invention is to provide a kind of methods, and easy, the size-grade particleboard edge that can control easy to adjust is fallen
Expect the method for wood shavings expulsion amount.
The method of control size-grade particleboard edge blanking wood shavings expulsion amount of the present invention, when positive pressure fan delivery
One timing adjusts slab edge blanking wood shavings expulsion amount, i.e., by increasing or reducing by changing the aperture of the vertical air door of edge
The vertical throttle opening of edge increases or decreases slab edge blanking wood shavings expulsion amount.
The method of above-mentioned control size-grade particleboard edge blanking wood shavings expulsion amount, if shavings raw material is not to be glued original
Material, density 142kg/m3, the vertical throttle opening accounting X of edge meets with slab edge blanking wood shavings expulsion amount accounting Y: Y=
0.404X-0.173；The vertical throttle opening accounting X of edge is that the draught area air door vertical with the edge of the vertical air door of edge is total
The ratio of area.
Invention also provides a kind of reduction particle mat edge shearing displacement and improve production board edge compactness
Method.
The method of the present invention for reducing particle mat edge shearing displacement and improving production board edge compactness, uses
Chipboard spreading machine is mated formation particieboard, when one timing of positive pressure fan delivery, is passed through and is increased the vertical throttle opening of edge, improve slab
Edge blanking wood shavings expulsion amount.
Above-mentioned reduction particle mat edge shearing displacement and the method for improving production board edge compactness, are spread using particieboard
Installation mat formation particieboard when, discharge quantity 3190.5kg/h, metering band frequency 22.4Hz, positive pressure fan delivery 5481.9m3/ h,
Negative-pressure air fan air quantity 11481.9m3/ h, travelling belt speed 7.1m/min, the vertical throttle opening accounting of edge are 60-70%.
Beneficial effects of the present invention: by particieboard Solution on Air Forming Equipment edge in particieboard airflow pavement production process
The adjusting of vertical air door, realizes effective control to slab edge blanking wood shavings expulsion amount (or the amount of migration) of mating formation.Increase side
The vertical throttle opening in portion can be improved slab edge blanking wood shavings expulsion amount, that is to say, that the vertical air door of edge to slab edge
Between part wood shavings be deported to the vertical air door of edge towards the side at slab center, can guarantee after the completion of mating formation in this way,
Need that cropped slab edge partial density is smaller and width is smaller, and the production board edge compactness after cutting edge compared with
Greatly, it not only can guarantee the actually required edge compactness of slab, but also can be reduced edge shearing displacement, ensured again while optimizing quality
Economy.
Detailed description of the invention
Fig. 1 is particieboard Solution on Air Forming Equipment schematic diagram.
Fig. 2 is the vertical air door arrangement schematic diagram of particieboard Solution on Air Forming Equipment.
Fig. 3 is single vertical air door aperture regulation schematic diagram.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the vertical throttle opening accounting of edge --- slab edge blanking the amount of migration accounting graph of relation.
Fig. 6 is that edge vertical throttle opening variation opposite side clan material height influences schematic diagram.
Specific embodiment
The following is specific embodiments of the present invention, but the invention is not limited to these embodiments, without departing from the present invention
Thought spirit and scope under the details and forms of the technical scheme of the invention are modified or replaced, these modifications and replacement
It falls within the protection scope of the present invention.
The particieboard Solution on Air Forming Equipment as shown in Figure 1 includes case 7 of mating formation, and positive pressure fan 1 is by being arranged in case of mating formation
The horizontal air door 3 and vertical air door 4 of anteriomedial are blown to case front of mating formation, sending between positive pressure fan 1 and case front of mating formation
Air quantity uniform device 2 is provided in air piping；The outlet of chip metering device 5 is located at the top front for case of mating formation；Negative-pressure air fan
10 go out air door to case tail portion air draught of mating formation, negative-pressure air fan 10 and paving by 8 upper and lower of case tail wind balance plate of mating formation up and down
Tail portion plate 9 is provided on air-suction duct between vanning tail portion；Mating formation below case is plate blank conveying device 6.
Positive and negative pressure fan 1,10 starts, and chip metering device 5 carries out shavings raw material after 7 interior flow field of case of mating formation is stablized
Distinguished and admirable act on of blanking, the air quantity uniform device 2 that shavings raw material is arrived realizes sorting inside case of mating formation, force plane flower is at itself
The time on plate blank conveying device 6 is deposited under the action of gravity earlier than wood wool.
Shown in Figure 2, vertical air door 4 from left to right has 32, from left to right per pass air door we be referred to as No. 1
No. 32 air door, No. 2 air doors ... air doors.The 1st air door (No. 1 air door) 11 of most left part and the 32nd air door (32 of most right part
Number air door) it 12 is edge air door.The belt left side of the 1st air door (No. 1 air door) of most left part in plate blank conveying device 6
Edge, in other words close to the left side wall for case 7 of mating formation.The 32nd air door (No. 32 air doors) of most right part is in plate blank conveying device 6
Belt right hand edge, in other words close to the right side wall of case 7 of mating formation.Each road air door bilateral symmetry.
The vertical air door of per pass has structure three up and down identical, as shown in being irised out right side ellipse in Fig. 2.One vertically-supplying air
The structure of door is as shown in Figure 3,4, and including fixed air door fixed plate 41, the door regulating plate 42 that can move up and down, air door is solid
There is the identical air port 43,44 of size shape on fixed board 41, door regulating plate 42 respectively, is changed by moving up and down door regulating plate 42
Become the opposite of two air ports 43,44 or the area that is staggered changes vertical throttle opening.
Have to realize to slab edge wood shavings usage amount of mating formation in pavement process by adjusting the vertical throttle opening of edge
Effect control.
The vertical throttle opening accounting X of edge is the draught area air door gross area vertical with the edge of the vertical air door of edge
Ratio.As shown in figure 3, No. 1 11 open or close range of air door (draught area) is the face of S1, No. 1 air door gross area i.e. air port 43
Product is (S1+S2), aperture accounting X=S1/ (S1+S2) of No. 1 air door 11.If for 43 total height of air port shown in Fig. 3,4
45mm, width 20mm, the relational expression of the sized H in ratio X and air door short transverse be X=S1/ (S1+S2)=1-H/ (5 π+
25), 25mm >=H >=10mm, adjusting vertical throttle opening with this formula can be improved air door adjusting efficiency.
The vertical throttle opening accounting of edge as shown in Figure 5 --- slab edge blanking the amount of migration accounting linear regression curves
Shown in figure, in the case where standard mats formation state, that is, steel slab surface of mating formation compared under formation state by changing the vertical throttle opening pair of edge
Steel slab surface of mating formation material height carries out test and is repeatedly timed positioning and quantitative collection weighing to wood shavings of mating formation, in edge vertically-supplying air
Door aperture variation front and back is analyzed by the slab wood shavings amount data of the current drop point of edge vertically-supplying air door and neighbouring air door drop point
Processing, obtain vertical with the edge throttle opening accounting of slab edge blanking wood shavings the amount of migration accounting it is overall be linearly incremented by become
Gesture；Pass through the vertical throttle opening accounting of edge --- slab edge blanking wood shavings the amount of migration accounting equation of linear regression: Y=
0.404X-0.173 can reach expected control purpose；Wherein, Y indicates slab edge blanking wood shavings expulsion amount accounting；X indicates edge
Vertical throttle opening accounting.
The measurement test process of the slab edge blanking wood shavings expulsion amount accounting is as follows.The vertical air door of Xian Jiang 32 is opened
Degree is all set to 50%, and the operating condition of test that will mat formation is tuned into mode standard (operating condition when plate blank paving quality is best, including just
Best adjusting combination of negative-pressure air fan frequency optimum value and each influence factor of airflow field etc.), the examination of wood shavings plate blank paving can be started
It tests.Test is by choosing the wood shavings slab mated formation in time 20s to 25s as data acquisition target, to the plane on the inside of No. 1 air door
Flower (wood shavings between belt left edge i.e. in the 1st air door and plate blank conveying device 6 of most left part, or perhaps most left part
The 1st air door and case 7 of mating formation left side wall between wood shavings) carry out quality weighing, as m1.Adjusting No. 1 air door of edge
Above step is repeated under the premise of opening size respectively, the quality of wood shavings is m on the inside of No. 1 air door of obtained edge2, by (m1-
m2) and m1Ratio be known as slab edge blanking wood shavings expulsion amount accounting Y.
It should be noted that the difference of each region tree species leads to the different of shavings raw material density, so that test data is sent out
Raw corresponding change.This test is only to acquire what throttle opening size during chipboard spreading influenced Surface Quality of Steel Billet
Universal law.
Table 1 is affecting laws tables of data (part number of the vertical air door different opening of edge to slab edge wood shavings expulsion amount
According to).According to test data it is found that air door inside region is corresponding if the vertical throttle opening of edge increases on the basis of 50%
Blanking expulsion amount increases；If the vertical throttle opening of edge reduces on the basis of 50%, the corresponding blanking of air door inside region is driven
It is reduced by amount.By carrying out quality weighing to corresponding blanking, and data are counted and arranged, finally uses SPSS software
Analysis can obtain the graph of relation that edge wood shavings expulsion amount accounting changes with edge vertically-supplying air door aperture accounting and changed, such as Fig. 5
It is shown.
It is tested by strip after adjusting edge air door different opening, plate is carried out to the wood shavings on the inside of slab edge air door of mating formation
Base blanking high measure and repeatedly to mat formation wood shavings carry out positioning and quantitative collect weighing, finally obtain the vertical air door difference of edge and open
Spend to the affecting laws of slab edge wood shavings expulsion amount, most typical data as shown in fig. 6, No. 1 throttle opening increase 10% it
Afterwards, the wood shavings in (left side) are deported on the right side of No. 1 air door on the inside of No. 1 air door.On the left of No. 1 air door at No. 1 air door 33mm of distance,
After No. 1 throttle opening increases 10%, it is about 4mm that blanking height, which reduces,.
The present invention by the adjusting to the vertical air door of particieboard Solution on Air Forming Equipment edge so that in case of mating formation air inlet side
Portion's wind speed is controlled, and is realized the edge discharge quantity mated formation in case toward the direction expulsion far from tank wall of mating formation or to tank wall of mating formation
Direction hoard；The vertical throttle opening of different edge corresponds to different edge blanking expulsion amount or the amount of hoarding.
Table 1:
Claims (2)
1. a kind of method for controlling size-grade particleboard edge blanking wood shavings expulsion amount, it is characterized in that: working as positive pressure fan delivery
One timing adjusts slab edge blanking wood shavings expulsion amount, i.e., by increasing or reducing by changing the aperture of the vertical air door of edge
The vertical throttle opening of edge increases or decreases slab edge blanking wood shavings expulsion amount；
If shavings raw material is not to be glued raw material, density 142kg/m3, the vertical throttle opening accounting X of edge and slab edge blanking
Wood shavings expulsion amount accounting Y meets: Y=0.404X-0.173；The vertical throttle opening accounting X of edge is the ventilation of the vertical air door of edge
The ratio of the area air door gross area vertical with the edge.
2. the method for reducing particle mat edge shearing displacement and improving production board edge compactness, it is characterized in that: using wood shavings
Plate spreading machine is mated formation particieboard, when one timing of positive pressure fan delivery, is passed through and is increased the vertical throttle opening of edge, improve slab edge
Blanking wood shavings expulsion amount；
Using chipboard spreading machine mat formation particieboard when, discharge quantity 3190.5kg/h, metering band frequency 22.4Hz, positive pressure fan
Air quantity 5481.9m3/ h, negative-pressure air fan air quantity 11481.9m3/ h, travelling belt speed 7.1m/min, the vertical throttle opening of edge account for
Than for 60-70%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030617.8A CN107599117B (en) | 2017-10-28 | 2017-10-28 | A method of control size-grade particleboard edge blanking wood shavings expulsion amount |
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|---|---|---|---|
| CN201711030617.8A CN107599117B (en) | 2017-10-28 | 2017-10-28 | A method of control size-grade particleboard edge blanking wood shavings expulsion amount |
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| CN107599117B true CN107599117B (en) | 2019-07-05 |
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| CN109808023A (en) * | 2019-03-27 | 2019-05-28 | 南京林业大学 | Air door automatic regulating device and air door control system for Solution on Air Forming Equipment |
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| CN1466639A (en) * | 2000-09-27 | 2004-01-07 | ���ֿ���ʽ���� | Molded fiber materials and methods and apparatus for making the same |
| CN101659076A (en) * | 2008-08-25 | 2010-03-03 | 迪芬巴赫有限两合公司 | Method for manufacturing plate blank with loose bulk material during the production of wooden plate and paving station |
| CN203843963U (en) * | 2014-05-19 | 2014-09-24 | 云南司珈尔木业股份有限公司 | Novel fiberboard spreading machine |
| CN204566321U (en) * | 2015-04-27 | 2015-08-19 | 苏州苏福马机械有限公司 | A kind of spreading machine airflow homogeneity adjusting device |
| CN105643759A (en) * | 2016-01-04 | 2016-06-08 | 万华生态板业股份有限公司 | Size-graded particleboard and manufacturing method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1466639A (en) * | 2000-09-27 | 2004-01-07 | ���ֿ���ʽ���� | Molded fiber materials and methods and apparatus for making the same |
| CN101659076A (en) * | 2008-08-25 | 2010-03-03 | 迪芬巴赫有限两合公司 | Method for manufacturing plate blank with loose bulk material during the production of wooden plate and paving station |
| CN203843963U (en) * | 2014-05-19 | 2014-09-24 | 云南司珈尔木业股份有限公司 | Novel fiberboard spreading machine |
| CN204566321U (en) * | 2015-04-27 | 2015-08-19 | 苏州苏福马机械有限公司 | A kind of spreading machine airflow homogeneity adjusting device |
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