CN1900863A - Precontrol algorithm for film tracting machine rolling perimeter - Google Patents
Precontrol algorithm for film tracting machine rolling perimeter Download PDFInfo
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- CN1900863A CN1900863A CN 200610027013 CN200610027013A CN1900863A CN 1900863 A CN1900863 A CN 1900863A CN 200610027013 CN200610027013 CN 200610027013 CN 200610027013 A CN200610027013 A CN 200610027013A CN 1900863 A CN1900863 A CN 1900863A
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- collecting device
- angular velocity
- film
- control
- girth
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Abstract
Characters of the invention are that according to mathematical model based on functional relation among linear velocity, angular velocity, and perimeter of rotary body, system program controls angular velocity of collecting device till tension device is stopped since the roll of thin film is finished so as to guarantee stability, reliability of system, and guarantee quality of product. Advantages are: reducing accuracy specification of distance measuring equipment greatly, saving cost of facility, raising precision of control system 20 times, ensuring quality of user product.
Description
Technical field
The present invention relates to a kind of pre-control algorithm of film drafting machine coiling girth, use the automatic MEASUREMENTS OF THIN winding diameter of ultrasonic range finder and control the constant tension winding device of winding angle speed, promptly the film drafting machine belongs to film drafting machine technical field.
Background technology
The current thin film drafting machine all is a dependence on import, and its processing mode is: servo with the 4th hot-rolling drawing-off is that principal velocity is given, other five servo then by servo itself number frequently cascade bus follow the tracks of the main frame speed synchronization.And the control of film constant tension winding promptly is: give servo controller with the electric signal of the automatic MEASUREMENTS OF THIN coiling of ultrasound wave girth, pass through servo processing, superpose with main frame speed again, and then tension pick-up is fed back the signal that comes give servo controller, relatively form a tension closed loop control system with the given tension value again and control collecting device angular velocity, to reach the purpose of constant tension winding.Its shortcoming is, in case there is interference in system, hyperacoustic signal will distortion, and the signal of tension pick-up is an analog quantity, and poor anti jamming capability, system are easy to generate big fluctuation, and its undulating quantity can reach 20-40kg, directly has influence on the quality of product.And the accuracy of detection of sensor is required high, increased the cost of product undoubtedly widely.
Summary of the invention
The objective of the invention is to invent that a kind of not enough or disturbance makes distorted signals cause the pre-control algorithm of the film drafting machine coiling girth of the permanent Tension Control distortion of collecting device because of the sensor control accuracy.
For realizing above purpose, technical scheme of the present invention provides a kind of pre-control algorithm of film drafting machine coiling girth, it is characterized in that, the edit routine IEC61131-3 standard of adopting international standards: ladder diagram LD and statement list STL language program, run on the electrical control cabinet of film drafting machine, its method is:
The first step: after the first volume film with a collection of product enters normal work, the number of turns according to collecting device scrambler record, make a pre-control specified rate Lu1 (0.5-0.8mm) during for the first time to 20 circles, superpose with collecting device original perimeter Lo, be converted into servo needed magnitude of angular velocity by calculating again, once regulate servo, simultaneously the number of times of regulating is also noted;
Second step: then when next times 20, circle arrived, judge current measured value and pre-control value earlier, when measured value subtracts the pre-control value greater than 0.6mm, on the pre-control value, increase a specified rate Lu1 again, collecting device pre-control girth specified rate Lu=Lo+Lu1+Lu1 then, regulate for again an angular velocity, and the speed record of regulating is got off;
The 3rd step: if measured value subtracts the pre-control value less than 0.5mm, this does not adjust, continuous repeating step 1 and 2, after the adjusting number of times is greater than 20-40 time, compare measured value and pre-control value again, when their difference less than 0.5mm, the number of turns n1 of program record collecting device scrambler at this moment, regulate times N o with girth, this moment, the adjusting total amount of girth was Lo+No*Lu1, at this moment the data model of coiled film girth is Lu=Lo+n*No*Lu1/n1, again according to the relation of linear velocity and angular velocity, can obtain the relation that its angular velocity is motor speed Wn=V*I/L; Wherein V is a collecting device linear velocity set-point, and I is a reduction gear ratio, the given Po=Wn*16384/3000 of the servo controller of angular velocity, and Po changes with the variation of the number of turns of collecting device scrambler;
The specified rate of the servo controller of angular velocity (Po)=motor speed (Wn) * 16384/3000, wherein 16384 is the calibration value of servo controller when 50HZ, 3000 is the servomotor maximum speed.
The 4th step: system program will be controlled the angular velocity of collecting device according to this mathematical model, finish and will stop up to rolling up film stretching.
The present invention is according to the funtcional relationship between the girth of linear velocity, angular velocity and rotary body, set up mathematical model, system program will be controlled the angular velocity of collecting device according to this mathematical model, intact and stop up to rolling up film stretching, thereby guarantee stability, the reliability of system, guarantee its product quality.
Advantage of the present invention is that the accuracy requirement to stadimeter reduces greatly, has saved the cost of equipment, and most importantly the control system precision has improved 20 times, guarantees the quality of consumer products, and system is stable, reliable.
Description of drawings
Fig. 1 is a film drafting machine structural representation;
Fig. 2 is the pre-control algorithm routine process flow diagram of film drafting machine coiling girth.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, be film drafting machine structural representation, described film drafting machine is made up of servomotor 9, the 4th heat-stretching roller 10, hot oil heater 11, operator's console 12, electrical control cabinet 13, collecting device servomotor 14, stadimeter 15, scrambler 16 and the fuselage 17 of the servomotor 7 of the servomotor 5 of the servomotor 3 of unwinding device and motor 1, jockey pulley 2, first heat-stretching roller, first heat-stretching roller 4, second heat-stretching roller, second heat-stretching roller 5, the 3rd heat-stretching roller, the 3rd heat-stretching roller 8, the 4th heat-stretching roller.Unwinding device and motor 1 and jockey pulley 2 are installed in the left end of fuselage 17, the servomotor 3 of first heat-stretching roller connects first heat-stretching roller 4, the servomotor 5 of second heat-stretching roller connects second heat-stretching roller 6, the servomotor 7 of the 3rd heat-stretching roller connects the 3rd heat-stretching roller 8, the servomotor 9 of the 4th heat-stretching roller connects the 4th heat-stretching roller 10 and is installed in successively in the fuselage 17, hot oil heater 11, operator's console 12 and electrical control cabinet 13 are installed in the both sides of fuselage 17 respectively, collecting device servomotor 14, stadimeter 15, scrambler 16 is installed in the right-hand member of fuselage 17, servomotor 3, servomotor 5, servomotor 7, servomotor 9, servomotor 14, stadimeter 15 is connected with electrical control cabinet 13 respectively with scrambler 16.
Electrical control cabinet 13 is furnished with 131 cover Siemens S7-315-2DP CPU (central processing unit) and I/O input/output modules, 2 passage high speed counting modules and 1 cover TP270 touch-screen.Wherein each servo-driver links to each other by profibus-DP, TP270 operation screen MPI mouth links to each other with S7-315PLC, finish the exchanges data and the synchro control of each technological parameter, wherein be that principal velocity is given with the collecting device, other five servo then by servo itself number frequently cascade bus to follow the tracks of main frame synchronous, increase newly on the collecting device transmission shaft simultaneously one 2048 line scrambler is housed, its signal is delivered to the high-speed counter port of S7-315PLC, in real time the running status of monitor shaft.
The present invention adopts Programmable Logic Controller PLC programming software: software-STEP7V5.3SP2 of Siemens S7-300/400, touch-screen configuration software: the software of Siemens's touch-screen-PROTOOL V6.0SP2, servo configuration software: Lenze's servo configuration software: GDC V4.9.3 is as secondary development software, the edit routine IEC61131-3 standard of adopting international standards: ladder diagram (LD) and statement list (STL) language program, as shown in Figure 2, be the pre-control algorithm routine process flow diagram of film drafting machine coiling girth, concrete disposal route is:
At first volume film with a collection of product, the girth of its collecting device coiled film is made pre-control to be handled, just working as first volume film enters after the normal work, the number of turns according to collecting device scrambler record, make a pre-control specified rate Lu1 (0.5-0.8mm) during for the first time to 20 circles, superpose with collecting device original perimeter Lo, be converted into servo needed magnitude of angular velocity by calculating again, once regulate servo, simultaneously the number of times of regulating is also noted, then when next times 20, circle arrived, judge current measured value and pre-control value earlier, when measured value subtracts the pre-control value greater than 0.6mm, on the pre-control value, increase a specified rate Lu1 (0.5-0.8mm) again, then the value of Lo+Lu1+Lu1 is a girth pre-control specified rate, regulate for again an angular velocity, and a speed record of regulating gets off, if measured value subtracts the pre-control value less than 0.5mm, this does not adjust, constantly like this repeat above-mentioned step, up to regulating number of times is 30 times, compare measured value and pre-control value again, when their difference less than 0.5mm, the number of turns n1 and the girth of the collecting device scrambler of program record this moment are regulated times N o, this moment, the adjusting total amount of girth was Lo+No*Lu1, at this moment the data model of coiled film girth is Lu=Lo+n*No*Lu1/n1, again according to the relation of linear velocity and angular velocity, can obtain the Wn=V*I/L relation of its angular velocity; Wherein V is a collecting device linear velocity set-point, I is a reduction gear ratio, the specified rate Po=Wn*16384/3000 of angular velocity, at this moment Po changes with the variation of the number of turns of collecting device scrambler, system program will be controlled the angular velocity of collecting device according to this mathematical model, and will be intact and stop up to rolling up film stretching.And then the production that enters next same product, after this all collecting device angular velocity then move according to the mathematical model of Po fully, up to this batch product is finished, its tension fluctuation value is less than 2kg, thereby guaranteed the quality of product, requirement to stadimeter also greatly reduces like this, also greatly reduces the manufacturing cost of equipment simultaneously.
Claims (1)
1. the pre-control algorithm of a film drafting machine coiling girth is characterized in that, the edit routine IEC61131-3 standard of adopting international standards: ladder diagram LD and statement list STL language program, and run on the electrical control cabinet of film drafting machine, and its method is:
The first step: after the first volume film with a collection of product enters normal work, the number of turns according to collecting device scrambler (16) record, make a pre-control specified rate Lu1 (0.5-0.8mm) during for the first time to 20 circles, superpose with collecting device original perimeter Lo, be converted into servo needed magnitude of angular velocity by calculating again, once regulate servo, simultaneously the number of times of regulating is also noted;
Second step: then when next times 20, circle arrived, judge current measured value and pre-control value earlier, when measured value subtracts the pre-control value greater than 0.6mm, on the pre-control value, increase a specified rate Lu1 again, collecting device pre-control girth specified rate Lu=Lo+Lu1+Lu1 then, regulate for again an angular velocity, and the speed record of regulating is got off;
The 3rd step: if measured value subtracts the pre-control value less than 0.5mm, this does not adjust, continuous repeating step 1 and 2, after the adjusting number of times is greater than 20-40 time, compare measured value and pre-control value again, when their difference less than 0.5mm, the number of turns n1 of program record collecting device scrambler at this moment, regulate times N o with girth, this moment, the adjusting total amount of girth was Lo+No*Lu1, at this moment the data model of coiled film girth is Lu=Lo+n*No*Lu1/n1, again according to the relation of linear velocity and angular velocity, can obtain the relation of its angular velocity (motor speed) Wn=V*I/L; Wherein V is a collecting device linear velocity set-point, and I is a reduction gear ratio, the given Po=Wn*16384/3000 of the servo controller of angular velocity, and Po changes with the variation of the number of turns of collecting device scrambler;
The specified rate Po=motor speed Wn*16384/3000 of the servo controller of angular velocity, wherein 16384 is the calibration value of servo controller when 50HZ, 3000 is the servomotor maximum speed.
The 4th step: system program will be controlled the angular velocity of collecting device according to this mathematical model, finish and will stop up to rolling up film stretching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100270133A CN100458618C (en) | 2006-05-29 | 2006-05-29 | Precontrol algorithm for film tracting machine rolling perimeter |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100270133A CN100458618C (en) | 2006-05-29 | 2006-05-29 | Precontrol algorithm for film tracting machine rolling perimeter |
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| CN1900863A true CN1900863A (en) | 2007-01-24 |
| CN100458618C CN100458618C (en) | 2009-02-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476756A (en) * | 2010-11-25 | 2012-05-30 | 软控股份有限公司 | Method for controlling material winding speed |
| CN104298168A (en) * | 2014-11-03 | 2015-01-21 | 镇江奥立特机械制造有限公司 | Control system of carbon fiber constant line speed active filament supply machine |
| CN111175144A (en) * | 2020-01-22 | 2020-05-19 | 合肥维信诺科技有限公司 | Curl test method and apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1208729B (en) * | 1984-12-27 | 1989-07-10 | Colgate Palmolive Co | DETECTION AND CONTROL DEVICE FOR STRETCHING IN THE LAMINATION OF SHEET MATERIALS |
| FR2771826B1 (en) * | 1997-12-03 | 2000-02-25 | Cims | DEVICE FOR CONTROLLING THE WINDING SPEED OF A FILM ON A WINDING COIL |
| US6710566B2 (en) * | 2001-10-01 | 2004-03-23 | Chicago Industrial Group, Inc. | Method and apparatus for servo glue gap control |
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2006
- 2006-05-29 CN CNB2006100270133A patent/CN100458618C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476756A (en) * | 2010-11-25 | 2012-05-30 | 软控股份有限公司 | Method for controlling material winding speed |
| CN102476756B (en) * | 2010-11-25 | 2014-07-30 | 软控股份有限公司 | Method for controlling material winding speed |
| CN104298168A (en) * | 2014-11-03 | 2015-01-21 | 镇江奥立特机械制造有限公司 | Control system of carbon fiber constant line speed active filament supply machine |
| CN111175144A (en) * | 2020-01-22 | 2020-05-19 | 合肥维信诺科技有限公司 | Curl test method and apparatus |
| CN111175144B (en) * | 2020-01-22 | 2023-02-17 | 合肥维信诺科技有限公司 | Curl test method and apparatus |
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| Publication number | Publication date |
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| CN100458618C (en) | 2009-02-04 |
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