EP0957053B1 - Verfahren zum Überwachen der Wickelhärte einer Wickelrolle - Google Patents
Verfahren zum Überwachen der Wickelhärte einer Wickelrolle Download PDFInfo
- Publication number
- EP0957053B1 EP0957053B1 EP99109028A EP99109028A EP0957053B1 EP 0957053 B1 EP0957053 B1 EP 0957053B1 EP 99109028 A EP99109028 A EP 99109028A EP 99109028 A EP99109028 A EP 99109028A EP 0957053 B1 EP0957053 B1 EP 0957053B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- material web
- winding
- determined
- web
- tension
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/044—Sensing web tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/12—Density
Definitions
- the invention relates to a method for monitoring the Winding hardness of a winding roll when winding a material web.
- the invention is based on a paper web described as an example of a material web. she is however also applicable to other material webs.
- a paper web has to be to salable rolls, so-called winding rolls, be wound up.
- This serves as the winding core usually a cardboard sleeve.
- Factors that affect the winding hardness e.g. the pressure with which the paper web is pressed onto the winding roll, when the paper web hits the winding roll, and the wrapped tension in the paper web.
- This Tension can be changed, for example, by that the winding roll with a larger or smaller Torque is driven.
- a carrier roller winder where the winding roll in a changing bed lies, which is formed from two (or more) support rollers is, you can also get a wrapped tension change that one of the two support rollers one different speed or torque than the other has.
- a method for monitoring the winding hardness is from EP 224 898 A1 known.
- the measuring rollers roll without slipping on the material web.
- the measuring rollers are with pulse generators connected with a high resolution one Deliver a predetermined number of pulses per revolution. From the difference in the pulse numbers of the two measuring rollers one can change the length of the material web conclude.
- DE 22 56 882 A1 shows a paper web stretch control and a device for carrying out this regulation, in which the web stretch is determined in that two places the web speeds and the tensions be determined in the train. From the in a time interval paper mass fed at both points can be drawn up a differential equation in which in the case of keeping the elongation constant, the distance length between the two measuring points. Summarized with Hooke's law for stretching as a quotient of tension / modulus of elasticity the stretch is derived approximately.
- GB 2 117 935 A deals with the control of the winding hardness when winding a material web into a winding roll.
- the winding roll is in a changing bed, that consists of two individually driven carrier rollers becomes.
- Each carrier roller is connected to a pulse generator. From the output signals of the pulse generators you can calculate a speed difference. additionally will the tension of the web before entering measured in the changing bed.
- a rider roll is provided which rests on the winding roller and drives can be.
- US 4,835,720 A1 shows the possibility of markings to determine the surface of a material web optically.
- the invention has for its object the winding hardness when winding a material web into a winding roll to monitor.
- This task is accomplished by a method with the characteristics of claim 1 solved.
- Measurements or determinations of length the one before applying traction and the other after Applying the tensile force or after increasing the tensile force lies. This reduces the measurement effort. If now such measurements or determinations for many sections one after the other, then you win with the desired continuity the information about the tension.
- a nip or nip results in one Decoupling the tension in the material web before and behind the nip. This allows the two states reliably separate the material web from each other. The information about the stretch is then clear.
- nip between the winding roll and one Carrier roller you have no additional Use components to create the nip. This is available anyway and can be used for implementation measurement.
- the elongation is preferably determined optically. At the Wrapping it is virtually impossible to interfere in to make the paper web. An optical measurement can but done without contact. It is also in able to make even relatively small changes, i.e. relative to determine small strains. With the ruling Tension will only result in small strains.
- the material web with markings is provided, their distance or length determined becomes. This makes optical measurement easier. With The markings can be made using suitable sensors detect. Before applying the tension (or when If there is a first tension) markings applied. Then when the tension is applied or is increased, then the markings expand with the Material web or its distance increases. If you do that Distance of the markings or their length determines wins the information about the change in length or the stretch of the material web when the tensile stress changes. You only have to make sure that the Material web actually with the determined tensile stress is wound up.
- the material web then has again an unmarked surface, what from the end user is ultimately desired. After determining the Stretching is also not necessary for the markings remain on the surface of the material web.
- the time is preferably less than 15 minutes. This Time is sufficient to complete the measurements with the required To be able to perform accuracy. But it is on the other hand small enough so that there is no need to fear that marked web rolls are delivered.
- a time measurement can be done with the time standards available today, for example quartz resonant circuits with relatively high frequency, with high Perform accuracy.
- the information about the length or the distance between the markings can be obtained via the Speed measurement of the material web. If you now combined both sizes, then you get simple Way the desired information about length or distance.
- the tensile stress is advantageously dependent regulated by the determined elongation.
- the elongation determined as the actual value is compared with the target value. In the event of deviations the tension must be changed in the right direction to match the actual and target values again bring to.
- a material web 1 passes through a guide arrangement 2 a nip 3 or nip before going to a take-up station 4 is performed.
- the winding station 4 is formed by two support rollers 5, 6, which between form a winding bed 7 in which a winding roll 8 lies on which the material web 1 is wound becomes. As a rule, the winding station 4 is behind a cutting device, not shown.
- the winding roll 8 is driven by a motor 9, i.e. the motor 9 generates a torque on the winding roll 8th.
- the material web 1 wraps around a support roller 5 about 180 ° and then runs through a nip 10 between the winding roller 8 and the support roller 5.
- This nip 10 decouples the tension in the area between the Guide assembly 2 with its nip 3 and the support roller 5 on the one hand from the tensile stress that is on the surface the winding roll 8 is generated by the motor 9.
- the tensile stress in the former area has the Value F1.
- the tension F1 is known, for example it can be zero if the guide arrangement 2 and the support roller 5 with the same peripheral speed are driven.
- the tension F2 depends substantially from the moment generated by the engine 9 becomes.
- This paint application device 11 To determine the tension, there is a paint application device behind the nip 3, but in front of the support roller 5 arranged.
- This paint application device 11 generates Color dots 12 with a predetermined distance d1. Since the Speed of the material web 1 is known (see can, for example, by a speed sensor 13 can be determined, which in the present case relates to a Speed and diameter determination of the winding roll 8 is based), results from the time interval, with which the paint application device the color dots 12 orders, a first value that a control device 14 is supplied. Of course you can Design the arrangement so that the control device 14 the ink application device 11 in predetermined time Intervals controlled so that the paint application device 11 color dots with the distance d1 on the Applies material web 1.
- the paint application device 11 forms a first measuring point, at which the length of a section of the web of material 1 can be determined. Under “determination” is understood that the information about the length of this Section after passing through the measuring point stands. The information is also available if the length is only specified in this measuring point becomes.
- the tension F2 is greater than the tension F1
- the material web 1 expands. This is in Fig. 2 shown exaggerated. Accordingly the distance d2 between two points 12 is greater.
- the distance between the points 12 is determined using a color measuring device 15 determined, which optically recognizes the points 12.
- the color measuring device 15 also determines the Time between running through two consecutive Color dots pass. This time will go to the Control device 14 reported back.
- the constant c is dependent on the values of the material web 1. These values can be determined beforehand in a laboratory test become.
- the through the color measuring device 15 After passing through the second measuring point, the through the color measuring device 15 is formed, are the points 12 (or other markings) no longer necessary. It is therefore used to generate points 12 (or other markings) a color that after a certain Time becomes invisible. Such a color is for example at the company Walter Toufar Deutschen, Herzgasse 39-41, A-1100 Vienna, Austria. Due to a pH shift that occurs after impact the color on a paper web, the Color liquid to a purely aqueous solution, the evaporates. After a while, for example after five minutes, there are no impurities or to see paint residues on the web.
- the tension has a direct influence on the hardness of the winding the winding roll 8.
- the control device 14 takes the tension curve as the target value and that determined by the color measuring device 15 Strain curve as the actual value and regulates the Motor 9 (or generally: the drive), so that the measured History in accordance with the given history comes. That way it's relative little effort possible, the winding hardness curve in one desired way to influence.
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Description
- Fig. 1
- eine schematische Anordnung zum Aufwickeln einer Materialbahnrolle und
- Fig. 2
- eine schematische Darstellung zur Erläuterung der Ermittlung der Zugspannung.
Claims (9)
- Verfahren zum Überwachen der Wickelhärte einer Wikkelrolle (8) beim Wickeln einer Materialbahn (1), bei dem die Dehnung der Materialbahn (1) durch berührungslose Messung der Längenänderung der Materialbahn (1) zwischen zwei Meßstellen (11, 15) mit unterschiedlicher Zugspannung (F1, F2) ermittelt wird, die durch einen Nip (10) voneinander getrennt sind, wobei der Nip (10) zwischen der Wikkelrolle (8) und einer Tragwalze (5) ausgebildet ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Dehnung (d2-d1) mit Hilfe einer optisch arbeitenden Einrichtung (15) ermittelt wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Materialbahn (1) mit Markierungen (12) versehen wird, deren Abstand (d1, d2) oder Länge ermittelt wird.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Messung der Dehnung an einem Abschnitt der Materialbahn (1) erfolgt, der auf der Wickelrolle (8) aufliegt.
- Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß man nach der Ermittlung für ein Verschwinden der Markierung (12) sorgt.
- Verfahren nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß man zum Erzeugen der Markierungen (12) eine Farbe aufträgt, die nach einer endlichen Zeit unsichtbar wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die Zeit kleiner als 15 Minuten ist.
- Verfahren nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, daß die Geschwindigkeit der Materialbahn einerseits und der zeitliche Abstand oder die zeitliche Länge der Markierungen (12) andererseits gleichlaufend ermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Zugspannung in Abhängigkeit von der ermittelten Dehnung geregelt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19821318A DE19821318A1 (de) | 1998-05-13 | 1998-05-13 | Verfahren zum Überwachen der Wickelhärte einer Wickelrolle |
DE19821318 | 1998-05-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0957053A1 EP0957053A1 (de) | 1999-11-17 |
EP0957053B1 true EP0957053B1 (de) | 2003-09-24 |
Family
ID=7867565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99109028A Expired - Lifetime EP0957053B1 (de) | 1998-05-13 | 1999-05-07 | Verfahren zum Überwachen der Wickelhärte einer Wickelrolle |
Country Status (3)
Country | Link |
---|---|
US (1) | US6209817B1 (de) |
EP (1) | EP0957053B1 (de) |
DE (2) | DE19821318A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19954072A1 (de) * | 1999-11-10 | 2001-05-17 | Siemens Ag | Verfahren und Vorrichtung zum Aufwickeln von Kabeln auf eine Kabeltrommel |
DE10019497C2 (de) * | 2000-04-19 | 2002-03-21 | Siemens Ag | Verfahren und Vorrichtung zur Messung der Wickelhärte einer Papierrolle |
US7022060B2 (en) * | 2001-03-29 | 2006-04-04 | Zsolt Design Engineering, Inc. | Method, apparatus and system for making cushioning product, and roll tensioner therefor |
FI111033B (fi) | 2001-06-15 | 2003-05-15 | Metso Paper Inc | Menetelmä rullan tiheyden määrittämiseksi |
DE10137258B4 (de) * | 2001-07-31 | 2004-04-15 | Koenig & Bauer Ag | Verfahren und Vorrichtung zur Ermittlung des Dehnungsverhaltens einer Papierbahn in einer Druckmaschine |
US7047852B2 (en) * | 2001-10-24 | 2006-05-23 | Kimberly-Clark Worldwide, Inc. | Feedforward control system for an elastic material |
FI20022023A (fi) * | 2002-11-13 | 2004-05-14 | Metso Paper Inc | Menetelmä kiinnirullaimen ohjaamiseksi |
DE102004012727A1 (de) * | 2004-03-16 | 2005-10-06 | Voith Paper Patent Gmbh | J-Linie |
US20120076563A1 (en) * | 2010-09-29 | 2012-03-29 | Raimon Castells De Monet | Image forming apparatus, media transport system usable with image forming apparatus, and method thereof |
DE102012110790B4 (de) * | 2012-11-09 | 2017-04-27 | Windmöller & Hölscher Kg | Verfahren für die Bestimmung der Wickelqualität eines Folienwickels |
FI127840B (en) * | 2017-03-23 | 2019-03-29 | Valmet Technologies Oy | A method for controlling the operation of a roller web for a fiber web |
KR102420625B1 (ko) * | 2020-11-20 | 2022-07-14 | (주)엔피에스 | 가공 장치 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3721809A (en) * | 1971-04-05 | 1973-03-20 | Strandberg Eng Labor Inc | Automatic thread counter and controller for fabric processing apparatus |
DE2256882C3 (de) * | 1972-11-20 | 1978-04-06 | Albert-Frankenthal Ag, 6710 Frankenthal | Regelvorrichtung vor dem Einlauf in eine die Papierbahn ziehende Bearbeitungsmaschine |
US3858820A (en) * | 1973-09-27 | 1975-01-07 | Beloit Corp | Double drum winder |
US4070194A (en) * | 1976-02-13 | 1978-01-24 | Kinki Aerosol Industrial Co., Ltd. | Ink for marking |
DE2802466C3 (de) * | 1978-01-20 | 1980-10-30 | 8022 Gruenwald | Verfahren zum Messen der Abstände von Markierungen an einer Materialbahn, insbesondere zum Messen der Abstande der Transport-Randlochung an einer Endlospapierbahn, sowie Vorrichtung zur Ausführung dieses Verfahrens |
DE2915829C2 (de) * | 1979-04-19 | 1982-10-14 | Herbert Ing.(Grad.) 4358 Haltern Gawarecki | Verfahren zur Herstellung von Verpackungen oder Einwickelbehältern aus einer mehreren zeitlich versetzten Behandlungsabschnitten unterworfenen Materialbahn sowie deren Ausbildung |
SE450703B (sv) | 1982-04-01 | 1987-07-20 | Asea Ab | Sett for kontrollering av den i en parullad pappersrulle inrullade materialspenningen |
JPS59158750A (ja) * | 1983-02-25 | 1984-09-08 | Mitsubishi Heavy Ind Ltd | 巻き硬さ検出装置 |
JPS6123065A (ja) * | 1984-07-11 | 1986-01-31 | Oki Electric Ind Co Ltd | 帯状体の巻取装置 |
DE3542633C3 (de) * | 1985-12-03 | 1996-12-19 | Lenox Europa Maschinen Gmbh | Verfahren und Vorrichtung zum Wickeln von Papierrollen |
DE3614436A1 (de) * | 1986-04-29 | 1987-11-05 | Jagenberg Ag | Messeinrichtung fuer die druckzonenbreite und/oder flaechenpressung zwischen einem wickel einer materialbahn und einer gegen den wickel gedrueckten walze und verfahren zum wickeln einer materialbahn |
JP2594928B2 (ja) * | 1986-10-29 | 1997-03-26 | 川崎製鉄株式会社 | ストリツプコイルの層間スリツプ検出方法 |
DE4115406A1 (de) * | 1991-05-10 | 1992-11-12 | Jagenberg Ag | Wickelmaschine zum aufwickeln von materialbahnen |
CH687519A5 (de) * | 1992-07-06 | 1996-12-31 | Tela Papierfabrik Ag | Speicherrolle und Verfahren zu deren Herstellung. |
IT1274126B (it) * | 1994-11-25 | 1997-07-15 | Gd Spa | Dispositivo per il controllo di bobine, in particolare utilizzabile nelle macchine incartatrici |
NL1000128C2 (nl) * | 1995-04-12 | 1996-10-15 | Stork Contiweb | Werkwijze voor het berekenen en regelen van de rek van een bewegende materiaalbaan en inrichting voor toepassing van de werkwijze. |
US5586501A (en) * | 1995-10-25 | 1996-12-24 | Burguera; Bartolome | Disappearing ink marking system |
-
1998
- 1998-05-13 DE DE19821318A patent/DE19821318A1/de not_active Withdrawn
-
1999
- 1999-05-07 EP EP99109028A patent/EP0957053B1/de not_active Expired - Lifetime
- 1999-05-07 DE DE59907078T patent/DE59907078D1/de not_active Expired - Lifetime
- 1999-05-12 US US09/310,340 patent/US6209817B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6209817B1 (en) | 2001-04-03 |
DE19821318A1 (de) | 1999-11-25 |
DE59907078D1 (de) | 2003-10-30 |
EP0957053A1 (de) | 1999-11-17 |
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