CN108275493A - A kind of control method of constant pressure rewinding pressure roller - Google Patents
A kind of control method of constant pressure rewinding pressure roller Download PDFInfo
- Publication number
- CN108275493A CN108275493A CN201711462565.1A CN201711462565A CN108275493A CN 108275493 A CN108275493 A CN 108275493A CN 201711462565 A CN201711462565 A CN 201711462565A CN 108275493 A CN108275493 A CN 108275493A
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- China
- Prior art keywords
- pressure roller
- rewinding
- pressure
- indicate
- swing arm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
The invention discloses a kind of control methods of constant pressure rewinding pressure roller, are specifically implemented according to the following steps：Step 1, the data of the current revolution rack position of acquisition；Step 2, it according to the length and position relationship of known all parts, calculates gravity and falls the component size in material volume；Step 3, pressure of the rewinding pressure roller cylinder thrust in material volume is calculated；Step 4, realization is calculated under conditions of constant pressure F when progress rewinding, the input air pressure of pressure roller cylinder.The method of the present invention can realize the control of rewinding pressure roller constant pressure, can effectively improve winding quality, reduce rejection rate.
Description
Technical field
The invention belongs to printing equipment rewinding control method technical fields, are related to a kind of controlling party of constant pressure rewinding pressure roller
Method.
Background technology
Wrap-up, due to the dynamic change of pendulum arm angle and the arm of force, causes rewinding pressure roller pressure during change of lap is cut
Pressure in material volume changes with the rotation of reversing frame and the variation of material coil diameter, for certain specialities, this variation
It can cause the material of material volume surface layer equivalent length that may become waste product.Our general ways are rewinding pressure roller configuration counterweights
Block, but such mode can sacrifice a part of take-up diameter.
Invention content
The object of the present invention is to provide a kind of control methods of constant pressure rewinding pressure roller, can realize rewinding pressure roller constant pressure
Control, can effectively improve winding quality, reduce rejection rate
The technical solution adopted in the present invention is a kind of control method of constant pressure rewinding pressure roller, which is characterized in that specific
Implement according to the following steps：
Step 1, the data of the current revolution rack position of acquisition；
Step 2, according to the length and position relationship of known all parts, it is big to calculate the component that gravity is fallen in material volume
It is small；
Step 3, pressure of the rewinding pressure roller cylinder thrust in material volume is calculated；
Step 4, realization is calculated under conditions of constant pressure F when progress rewinding, the input air pressure of pressure roller cylinder.
The features of the present invention also characterized in that
Step 1 is specifically implemented according to the following steps：Using reversing frame position detecting device, rotated through by encoder acquisition
Journey obtains position data, i.e. reversing frame shows angle β when position expects that axis is horizontal with AB.
The structure of the reversing frame detection device is that the big holder of reversing frame is fixed on ground, in the big holder of reversing frame
A gear wheel, pinion gear and canine tooth are installed in the upper pinion gear installed by holder I and holder II and encoder, reversing frame shaft end
Transmission ratio between wheel is 4：1；When reversing frame turns 1 circle, pinion gear turns 4 circles, that is, encoder turns 4 circles, according to encoder
The number of turns of acquisition, transmission ratio calculate the angle that reversing frame turns over.
The step 2 is specifically, the angle α of the swing arm of rewinding pressure roller and AB axis lines is with material-coil coil-diameter in wrapup procedure
Variation and change, α=γ+δ can be obtained by geometrical relationship；Wherein γ indicate the swing arm centre of gyration with it is corresponding expect axis line and
The angle of AB axis lines, δ indicate the angle of the swing arm centre of gyration and the line and swing arm of corresponding material axis；
Wherein,
Wherein A indicates that the distance between the swing arm centre of gyration and material volume center, B indicate that pendulum arm length, C indicate pressure roller half
Diameter, D indicate that material coil diameter, E indicate that the vertical distance between the swing arm centre of gyration and material volume center, M indicate the swing arm centre of gyration
With the horizontal distance between material volume center；
Calculate power of the gravity in material volume：
FM=2G1×1/2×COS(α+β)+G2×B×COS(α+β)
=(G1+G2)×B×COS(α+β)
Wherein G1Indicate swing arm weight, G2Indicate that pressure roller weight, B indicate pendulum arm length.
The step 3 specifically,
Calculate power P of the cylinder action in material volumeQ：FQ=p × PQ× L,
Wherein, p indicates pressure roller cylinder air pressure value (unit Mpa), PQIndicate that the thrust of two cylinders under 1Mpa, L indicate power
Arm；
The computational methods of the arm of force L are：
It calculates firstWherein, wherein ε indicates the swing arm centre of gyration and the cylinder centre of gyration and pendulum
The angle of arm, H indicate the distance between the cylinder centre of gyration and the swing arm centre of gyration；
Then the calculation formula of arm of force L is：
Wherein J indicates the distance between the swing arm centre of gyration and cylinder front stall.
Step 4 specific method is：By the F being calculated in step 2 and step 3QAnd FMRewinding pressure roller is calculated
Pressure value F,
F=FQ-FM=p × PQ×L-(G1+G2× B) × COS (alpha+beta),
Pressure roller acts on the constant force in material volume when wherein F is production, in wrapup procedure, the pressure p of cylinder offer
Calculation formula is：
The invention has the advantages that being closed by the function of analyze and research platen pressure and material coil diameter and revolution rack position
System is adjusted the input air pressure of rewinding pressure roller cylinder by PLC, can realized according to material volume difference coil diameter and reversing frame different location
Rewinding pressure roller cylinder air pressure is adjusted, realizes the control of rewinding pressure roller constant pressure, winding quality can be effectively improved, reduces rejection rate；
Compared with the previous structure by clump weight to realize this function, winding revolving structure is compacter.
Description of the drawings
Fig. 1 be constant pressure rewinding pressure roller of the present invention control method in reversing frame position detecting device sectional view；
Fig. 2 be constant pressure rewinding pressure roller of the present invention control method in rewinding reel change figure；
Fig. 3 be constant pressure rewinding pressure roller of the present invention control method in the swing arm of rewinding pressure roller and AB axis lines angle calcu-lation
Schematic diagram；
Fig. 4 be constant pressure rewinding pressure roller of the present invention control method in cylinder arm of force calculating figure.
In figure, the big holder of 1. reversing frames, 2. holders I, 3. holders II, 4. pinion gears, 5. encoders, 6. gear wheels, 7.B material
Axis, 8. pressure roller cylinders, the 9. swing arm centres of gyration, 10. swing arms, 11.A expect axis, 12. material volumes, the 13. reversing frame centres of gyration, 14. pressures
Roller.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of control method of constant pressure rewinding pressure roller, which is characterized in that be specifically implemented according to the following steps：
Step 1, the data of the current revolution rack position of acquisition；The specific steps are,
Using reversing frame position detecting device, rotary course is acquired by encoder 5, obtains position data, i.e. reversing frame
Angle β when existing position expects that axis is horizontal with AB；
The structure of the reversing frame detection device, as depicted in figs. 1 and 2, the big holder of reversing frame are fixed on ground,
The pinion gear 4 and encoder 5, reversing frame shaft end installed by holder I 2 and holder II 3 on the big holder of reversing frame are installed one big
Gear 6, the transmission ratio between pinion gear 4 and gear wheel 6 are 4：1；When reversing frame turns 1 circle, pinion gear turns 4 circles, that is, compiles
Code device turns 4 circles, and the angle that reversing frame turns over is calculated according to the number of turns of the acquisition of encoder, transmission ratio.
Step 2, according to the length and position relationship of known all parts, it is big to calculate the component that gravity is fallen in material volume
It is small；As shown in figure 3,
The swing arm of rewinding pressure roller and the angle α of AB axis lines change with the variation of material-coil coil-diameter in wrapup procedure, pass through
Geometrical relationship can obtain α=γ+δ；Wherein γ indicates the angle of the swing arm centre of gyration and the line and AB axis lines of corresponding material axis, δ
Indicate the angle of the swing arm centre of gyration and the line and swing arm of corresponding material axis；
Wherein,
Wherein A indicates that the distance between the swing arm centre of gyration and material volume center, B indicate that pendulum arm length, C indicate pressure roller half
Diameter, D indicate that material coil diameter, E indicate that the vertical distance between the swing arm centre of gyration and material volume center, M indicate the swing arm centre of gyration
With the horizontal distance between material volume center.
Calculate power of the gravity in material volume：
FM=2G1×1/2×COS(α+β)+G2×B×COS(α+β)
=(G1+G2)×B×COS(α+β)
Wherein G1Indicate swing arm weight, G2Indicate that pressure roller weight, B indicate pendulum arm length.
Step 3, pressure of the rewinding pressure roller cylinder thrust in material volume is calculated；
Calculate power P of the cylinder action in material volumeQ：
FQ=p × PQ× L, wherein p indicates pressure roller cylinder air pressure value (unit Mpa), PQIndicate two cylinders under 1Mpa
Thrust, L indicate the arm of force；
As shown in figure 4, the computational methods of the arm of force L are：
It calculates firstWherein, wherein ε indicates the swing arm centre of gyration and the cylinder centre of gyration and pendulum
The angle of arm, H indicate the distance between the cylinder centre of gyration and the swing arm centre of gyration.
Then the calculation formula of arm of force L is：
Wherein J indicates the distance between the swing arm centre of gyration and cylinder front stall.
Step 4, realization is calculated under conditions of constant pressure F when progress rewinding, the input air pressure of pressure roller cylinder；Specific method
For by the F being calculated in step 2 and step 3QAnd FMRewinding platen pressure value F is calculated,
F=FQ-FM=p × PQ×L-(G1+G2×B)×COS(α+β)
Pressure roller acts on the constant force in material volume when wherein F is production, in wrapup procedure, the pressure p of cylinder offer
Calculation formula is：
With the arm of force of cylinder and the variation of swing arm and horizontal position angle, gravity is changing in the power of material volume, needs
It to be adjusted by the pressure p value that cylinder provides, to realize that the power that pressure roller acts in material volume remains unchanged to realize
The constant pressure of rewinding material volume controls.
Claims (6)
1. a kind of control method of constant pressure rewinding pressure roller, which is characterized in that be specifically implemented according to the following steps：
Step 1, the data of the current revolution rack position of acquisition；
Step 2, it according to the length and position relationship of known all parts, calculates gravity and falls the component size in material volume；
Step 3, pressure of the rewinding pressure roller cylinder thrust in material volume is calculated；
Step 4, realization is calculated under conditions of constant pressure F when progress rewinding, the input air pressure of pressure roller cylinder.
2. the control method of constant pressure rewinding pressure roller according to claim 1, which is characterized in that the step 1 is specific
Implement according to the following steps：
Using reversing frame position detecting device, rotary course is acquired by encoder 5, obtains position data, i.e. reversing frame shows position
Set angle β when expecting that axis is horizontal with AB.
3. the control method of constant pressure rewinding pressure roller according to claim 1, which is characterized in that the reversing frame detection
The structure of device is that the big holder of reversing frame is fixed on ground, passes through holder I (2) and holder II (3) on the big holder of reversing frame
A gear wheel (6) is installed in the pinion gear (4) and encoder (5) of installation, reversing frame shaft end, pinion gear (4) and gear wheel (6) it
Between transmission ratio be 4：1；When reversing frame turns 1 circle, pinion gear turns 4 circles, that is, encoder turns 4 circles, according to adopting for encoder
The number of turns of collection, transmission ratio calculate the angle that reversing frame turns over.
4. the control method of constant pressure rewinding pressure roller according to claim 1, which is characterized in that the step 2 is specific
For the swing arm of rewinding pressure roller and the angle α of AB axis lines change with the variation of material-coil coil-diameter in wrapup procedure, are closed by geometry
System can obtain α=γ+δ；Wherein γ indicates that the angle of the swing arm centre of gyration and the line and AB axis lines of corresponding material axis, δ indicate pendulum
The angle at revolution of arm center and the line and swing arm of corresponding material axis；
Wherein,
Wherein A indicates that the distance between the swing arm centre of gyration and material volume center, B indicate that pendulum arm length, C indicate pressure roller radius, D tables
Show that material coil diameter, E indicate that the vertical distance between the swing arm centre of gyration and material volume center, M indicate the swing arm centre of gyration and material volume
Horizontal distance between center；
Calculate power of the gravity in material volume：
FM=2G1×12×COS(α+β)+G2×B×COS(α+β)
=(G1+G2)×B×COS(α+β)
Wherein G1Indicate swing arm weight, G2Indicate that pressure roller weight, B indicate pendulum arm length.
5. the control method of constant pressure rewinding pressure roller according to claim 1, which is characterized in that the step 3 is specific
For,
Calculate power P of the cylinder action in material volumeQ：FQ=p × PQ× L,
Wherein, p indicates pressure roller cylinder air pressure value (unit Mpa), PQIndicate that the thrust of two cylinders under 1Mpa, L indicate the arm of force；
The computational methods of the arm of force L are：
It calculates firstWherein, wherein ε indicates the swing arm centre of gyration and the cylinder centre of gyration and swing arm
Angle, H indicate the distance between the cylinder centre of gyration and the swing arm centre of gyration；
Then the calculation formula of arm of force L is：
Wherein J indicates the distance between the swing arm centre of gyration and cylinder front stall.
6. the control method of constant pressure rewinding pressure roller according to claim 1, which is characterized in that the step 4 is specific
Method is：By the F being calculated in step 2 and step 3QAnd FMRewinding platen pressure value F is calculated,
F=FQ-FM=p × PQ×L-(G1+G2× B) × COS (alpha+beta),
Pressure roller acts on the constant force in material volume when wherein F is production, in wrapup procedure, the calculating for the pressure p that cylinder provides
Formula is：
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711462565.1A CN108275493A (en) | 2017-12-28 | 2017-12-28 | A kind of control method of constant pressure rewinding pressure roller |
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| CN201711462565.1A CN108275493A (en) | 2017-12-28 | 2017-12-28 | A kind of control method of constant pressure rewinding pressure roller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292494A (en) * | 2018-10-30 | 2019-02-01 | 常州永盛新材料装备股份有限公司 | A kind of wrap-up with interior pressure device |
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| JPS5978054A (en) * | 1982-10-26 | 1984-05-04 | Minamisenjiyu Seisakusho:Kk | Control of rider roll and apparatus thereof |
| CN1359828A (en) * | 2000-12-22 | 2002-07-24 | 富士胶片株式会社 | Device and method for winding roll film |
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| CN202508690U (en) * | 2012-03-21 | 2012-10-31 | 深圳众为兴技术股份有限公司 | Constant tension high-speed coiling machine |
| CN202744061U (en) * | 2012-08-23 | 2013-02-20 | 东莞市康正轧辊设备有限公司 | Unreeling device of roller press |
| CN103193102A (en) * | 2013-03-26 | 2013-07-10 | 桂林电器科学研究院有限公司 | Floating roll device for film production device |
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| CN103347623A (en) * | 2011-01-13 | 2013-10-09 | 株式会社Ihi | Ironing apparatus |
| CN203568552U (en) * | 2013-11-28 | 2014-04-30 | 东莞市尼的净化科技有限公司 | Thin film automatic uncoiling control device |
| CN204702272U (en) * | 2015-04-15 | 2015-10-14 | 苏州东昇机电科技有限公司 | For the hai roll automatic lap changing apparatus structure of cutting machine |
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2017
- 2017-12-28 CN CN201711462565.1A patent/CN108275493A/en active Pending
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| JPS5978054A (en) * | 1982-10-26 | 1984-05-04 | Minamisenjiyu Seisakusho:Kk | Control of rider roll and apparatus thereof |
| CN1359828A (en) * | 2000-12-22 | 2002-07-24 | 富士胶片株式会社 | Device and method for winding roll film |
| CN201362518Y (en) * | 2009-02-13 | 2009-12-16 | 温州神力机械制造有限公司 | Non-stop reel-changing material receiving device |
| CN201501689U (en) * | 2009-10-22 | 2010-06-09 | 瑞安市国伟印刷机械有限公司 | Winding/unwinding device of gravure printing machine |
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| CN202508690U (en) * | 2012-03-21 | 2012-10-31 | 深圳众为兴技术股份有限公司 | Constant tension high-speed coiling machine |
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| CN202744061U (en) * | 2012-08-23 | 2013-02-20 | 东莞市康正轧辊设备有限公司 | Unreeling device of roller press |
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| CN203568552U (en) * | 2013-11-28 | 2014-04-30 | 东莞市尼的净化科技有限公司 | Thin film automatic uncoiling control device |
| CN204702272U (en) * | 2015-04-15 | 2015-10-14 | 苏州东昇机电科技有限公司 | For the hai roll automatic lap changing apparatus structure of cutting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292494A (en) * | 2018-10-30 | 2019-02-01 | 常州永盛新材料装备股份有限公司 | A kind of wrap-up with interior pressure device |
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Application publication date: 20180713 |