CN107599117A - A kind of method for controlling size-grade particleboard edge blanking wood shavings expulsion amount - Google Patents
A kind of method for controlling size-grade particleboard edge blanking wood shavings expulsion amount Download PDFInfo
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- CN107599117A CN107599117A CN201711030617.8A CN201711030617A CN107599117A CN 107599117 A CN107599117 A CN 107599117A CN 201711030617 A CN201711030617 A CN 201711030617A CN 107599117 A CN107599117 A CN 107599117A
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Abstract
The present invention provides a kind of method easy, the easy to adjust method that can control size-grade particleboard edge blanking wood shavings expulsion amount.This method is when the timing of malleation fan delivery one, by changing the aperture of the vertical air door of edge, adjusts slab edge blanking wood shavings expulsion amount, i.e., by increasing or reducing the vertical throttle opening of edge, improves or reduce slab edge blanking wood shavings expulsion amount.
Description
Technical field
The present invention relates to a kind of optimisation technique of Wood-based Panel Production technique, is to use particieboard airflow pavement specifically
When machine produces particieboard, the method for control size-grade particleboard edge blanking wood shavings expulsion amount.Using this method on increase side
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 technology
The process route of airflow pavement particieboard mainly include screening, apply plane, mat formation, precompressed, hot pressing, cooling, cutting edge and
Sanding, according to actual conditions, 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, production board edge compactness cannot ensure cutting edge amount at least, cause edge structure
Loosely, edge bitch power is poor；Cutting edge amount wastes raw material and influences production board specification more, 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 which researching and developing new technology goes solve wave
The problems such as expense raw material and size-grade particleboard edge compactness deficiency, becomes particularly urgent.
The content of the invention
It is an object of the invention to provide a kind of method it is easy, easy to adjust size-grade particleboard edge can be controlled to fall
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 malleation fan delivery
One timing, by changing the aperture of the vertical air door of edge, slab edge blanking wood shavings expulsion amount is adjusted, i.e., by increasing or reducing
The vertical throttle opening of edge, improve or reduce 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, is used
Chipboard spreading machine is mated formation particieboard, when the timing of malleation fan delivery one, by increasing the vertical throttle opening of edge, improves 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, malleation 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 to particieboard Solution on Air Forming Equipment edge in particieboard airflow pavement production process
The regulation of vertical air door, is realized to slab edge blanking wood shavings expulsion amount of mating formation（Or migration amount）Effective control.Increase side
The vertical throttle opening in portion, it is possible to increase 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 so ensure after the completion of mating formation,
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, the actually required edge compactness of slab had both been can guarantee that, and can reduces edge shearing displacement, is ensured again while quality is optimized
Economy.
Brief description of the drawings
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 Fig. 3 left view.
Fig. 5 is the vertical throttle opening accounting of edge --- slab edge blanking migration amount accounting graph of relation.
Fig. 6 is that the vertical throttle opening change opposite side clan material height of edge influences schematic diagram.
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.
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 on case of mating formation
The horizontal air door 3 and vertical air door 4 of anteriomedial are to the anterior air-supply of case of mating formation, sending between positive pressure fan 1 and case front portion of mating formation
Air quantity uniform device 2 is provided with wind pipeline；Top front of the outlet of chip metering device 5 positioned at case of mating formation；Negative-pressure air fan
10 by the upper and lower of case tail wind balance plate 8 of mating formation it is upper and lower go out air door to case afterbody air draught of mating formation, negative-pressure air fan 10 and paving
Afterbody plate 9 is provided with air-suction duct between vanning afterbody；It is plate blank conveying device 6 to mat formation below case.
Positive and negative pressure fan 1,10 starts, and chip metering device 5 is carried out to shavings raw material after the interior flow field of case 7 of mating formation is stable
Blanking, 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 at itself
The time on plate blank conveying device 6 is deposited in the presence 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.1st air door of most left part（No. 1 air door）11 and the 32nd air door of most right part（32
Number air door）12 be edge air door.1st air door of most left part（No. 1 air door）The belt left side in plate blank conveying device 6
Edge, in other words close to the left side wall for case 7 of mating formation.32nd air door of most right part（No. 32 air doors）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 is symmetrical.
The vertical air door of per pass has structure identical three up and down, as shown in being irised out right side ellipse in Fig. 2.One vertically-supplying air
As shown in Figure 3,4, including fixed air door fixed plate 41, the door regulating plate 42 that can move up and down, air door is solid for the structure of door
There is size shape identical air port 43,44 on fixed board 41, door regulating plate 42 respectively, changed by moving up and down door regulating plate 42
The relative or area that is staggered for becoming two air ports 43,44 changes vertical throttle opening.
Have in pavement process by adjusting the vertical throttle opening of edge to realize to slab edge wood shavings usage amount of mating formation
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 open or close range of air door 11（Draught area）For S1, the face in 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 the total height of air port 43 shown in Fig. 3,4
45mm, width 20mm, the relational expression of the sized H in ratio X and air door short transverse for X=S1/ (S1+S2)=1-H/ (5 π+
25), 25mm >=H >=10mm, air door regulation efficiency can be improved by adjusting vertical throttle opening with this formula.
The vertical throttle opening accounting of edge as shown in Figure 5 --- slab edge blanking migration amount accounting linear regression curves
Shown in figure, in the case where standard mats formation state, that is, steel slab surface of mating formation compared with formation state by changing the vertical throttle opening pair of edge
Steel slab surface of mating formation material height is tested and repeatedly wood shavings of mating formation is timed positioning and quantitative collection and weighed, in edge vertically-supplying air
The front and rear slab wood shavings amount data to the current drop point of edge vertically-supplying air door and neighbouring air door drop point of door aperture change are analyzed
Processing, obtains that slab edge blanking wood shavings migration amount accounting vertical with edge throttle opening accounting totality is linearly incremental to become
Gesture；Pass through the vertical throttle opening accounting of edge --- slab edge blanking wood shavings migration amount accounting equation of linear regression：Y=
0.404X-0.173 can reach expected control purpose；Wherein, Y represents slab edge blanking wood shavings expulsion amount accounting；X represents edge
Vertical throttle opening accounting.
The determination test process of described slab edge blanking wood shavings expulsion amount accounting is as follows.32 vertical air doors of Xian Jiang are opened
Degree is all set to 50%, and the operating condition of test that will mat formation is tuned into mode standard (operating mode when plate blank paving quality is optimal, including just
Optimal regulation combination of negative-pressure air fan frequency optimum value and each influence factor of airflow field etc.), you can start the examination of wood shavings plate blank paving
Test.Experiment is used as data acquisition object by choosing the wood shavings slab in time 20s to 25s of mating formation, to the plane on the inside of No. 1 air door
Flower（The wood shavings between belt left hand 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 to weigh, as m1.In regulation No. 1 air door of edge
Above step is repeated on the premise of aperture size respectively, the quality of resulting No. 1 air door inner side wood shavings of edge is m2, by (m1-
m2) and m1Ratio be referred to as slab edge blanking wood shavings expulsion amount accounting Y.
It should be noted that the difference of each region seeds causes differing for shavings raw material density so that test data is sent out
Raw corresponding change.This experiment is only to try to achieve what the throttle opening size during chipboard spreading influenceed on Surface Quality of Steel Billet
Universal law.
Table 1 is affecting laws tables of data of the vertical air door different opening of edge to slab edge wood shavings expulsion amount（Part number
According to）.It can be seen from test data, if the vertical throttle opening of edge increases on the basis of 50%, corresponding to air door inside region
The increase of blanking expulsion amount；If the vertical throttle opening of edge reduces on the basis of 50%, blanking corresponding to air door inside region drives
Reduced by amount.Weighed by carrying out quality to corresponding blanking, and data are counted and arranged, finally use SPSS softwares
Analysis can obtain the graph of relation that edge wood shavings expulsion amount accounting changes and changed with edge vertically-supplying air door aperture accounting, such as Fig. 5
It is shown.
Tested by strip after adjusting edge air door different opening, andante is entered 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 weigh, finally give the vertical air door difference of edge and open
Spend to the affecting laws of slab edge wood shavings expulsion amount, its most typical data as shown in fig. 6, No. 1 throttle opening increase 10% it
Afterwards, on the inside of No. 1 air door（Left side）Wood shavings be deported on the right side 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 increase 10%, blanking highly reduces about 4mm.
The present invention passes through the regulation to the vertical air door of particieboard Solution on Air Forming Equipment edge so that the side of air inlet in case of mating formation
Portion's wind speed is controlled, and is realized the edge discharge quantity mated formation in case toward the direction expulsion away 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 (4)
1. a kind of method for controlling size-grade particleboard edge blanking wood shavings expulsion amount, it is characterized in that：When malleation fan delivery
One timing, by changing the aperture of the vertical air door of edge, slab edge blanking wood shavings expulsion amount is adjusted, i.e., by increasing or reducing
The vertical throttle opening of edge, improve or reduce slab edge blanking wood shavings expulsion amount.
2. the method for control size-grade particleboard edge blanking wood shavings expulsion amount as claimed in claim 1, it is characterized in that：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 drive
Meet by amount accounting Y：Y=0.404X-0.173；The vertical throttle opening accounting X of edge be the vertical air door of edge draught area with
The ratio of the vertical air door gross area of the edge.
3. particle mat edge shearing displacement and the method for improving production board edge compactness are reduced, it is characterized in that：Use wood shavings
Plate spreading machine is mated formation particieboard, when the timing of malleation fan delivery one, by increasing the vertical throttle opening of edge, improves slab edge
Blanking wood shavings expulsion amount.
4. particle mat edge shearing displacement and the method for improving production board edge compactness are reduced as claimed in claim 3,
It is characterized in that：Using chipboard spreading machine mat formation particieboard when, discharge quantity 3190.5kg/h, metering band frequency 22.4Hz, just
Pressure fan air quantity 5481.9m3/ h, negative-pressure air fan air quantity 11481.9m3/ h, travelling belt speed 7.1m/min, the vertical air door of edge
Aperture accounting is 60-70%.
Priority Applications (1)
| 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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| CN107599117A true CN107599117A (en) | 2018-01-19 |
| CN107599117B CN107599117B (en) | 2019-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN107599117B (en) | 2019-07-05 |
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