EP1964799B1 - Web guide control, web processing apparatus and method for operating the same - Google Patents

Web guide control, web processing apparatus and method for operating the same Download PDF

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Publication number
EP1964799B1
EP1964799B1 EP07004189A EP07004189A EP1964799B1 EP 1964799 B1 EP1964799 B1 EP 1964799B1 EP 07004189 A EP07004189 A EP 07004189A EP 07004189 A EP07004189 A EP 07004189A EP 1964799 B1 EP1964799 B1 EP 1964799B1
Authority
EP
European Patent Office
Prior art keywords
web
guide roller
guide
tension
roller
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.)
Not-in-force
Application number
EP07004189A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1964799A1 (en
Inventor
Stefan Hein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Applied Materials Inc
Original Assignee
Applied Materials Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Applied Materials Inc filed Critical Applied Materials Inc
Priority to DE602007005973T priority Critical patent/DE602007005973D1/de
Priority to AT07004189T priority patent/ATE465112T1/de
Priority to EP07004189A priority patent/EP1964799B1/en
Priority to TW097106673A priority patent/TWI379016B/zh
Priority to PCT/EP2008/052438 priority patent/WO2008104593A1/en
Priority to US12/528,789 priority patent/US20100038468A1/en
Priority to JP2009551934A priority patent/JP2010520131A/ja
Priority to KR1020097020108A priority patent/KR20090115971A/ko
Publication of EP1964799A1 publication Critical patent/EP1964799A1/en
Application granted granted Critical
Publication of EP1964799B1 publication Critical patent/EP1964799B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • 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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204—Sensing transverse register of web
    • 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
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling 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
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B65H26/04—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs for variation in 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B65H2301/5114—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/80—Arangement of the sensing means
    • B65H2553/82—Arangement of the sensing means with regard to the direction of transport of the handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/264—Calculating means; Controlling methods with key characteristics based on closed loop control
    • B65H2557/2644—Calculating means; Controlling methods with key characteristics based on closed loop control characterised by PID control

Definitions

  • the present invention relates to a web guide control and a web processing apparatus.
  • the present invention relates particularly to a web guide control for compensating failures in the raw material and/or the coiling installation and to a web processing apparatus for coating web in vacuum installations.
  • the present invention also relates to a method for guiding a web and particularly to a method for compensating failures in a web during web guiding.
  • Web handling is an important issue in installations for processing continuous web. Therein, many coils handling hundreds of metres or even kilometres of web have to be arranged and operated in such a way that no damage such as crinkles, trumlines, tear-offs, or the like occur in the web.
  • Document EP 0 579 854 Al relates to the field of steel strip handling.
  • the document teaches an apparatus for maintaining a given strip tension in a process line for rolling of strips despite their continuous accelerating, decelerating and stopping.
  • a strip is threaded between transportation rolls and a movable transportation roll.
  • the apparatus comprises an extra tension sensor in the vicinity of a transportation roll as well as an arm driving motor for moving the movable transportation roll.
  • the web guide control includes two guide rollers, an adjustment unit at the first guide roller, a tension measurement unit at the second guide roller, and a data connection for supporting the adjustment unit with tension data from the tension measurement unit.
  • a web processing apparatus with at least one guide control as described herein is provided.
  • a method for guiding a web includes the steps of adjusting the position of a first guide roller by moving one side of the first guide roller and measuring the tension of the web acting on a second guide roller, thereby receiving measurement results, wherein adjusting is based on the measurement results.
  • the web 140 is fed to the web processing unit 100 from a web supply.
  • the web supply is a web storage unit 110 where the web is coiled. Typical lengths of the web on the coil are in the range between 500 m and 50 km.
  • the web supply is continuous e.g. from a section with or without an outlet port where the web exits the section for being fed to the web processing unit 100 (not shown). Typical guiding velocities are in the range of between 0,1 and 20 metre per second.
  • different processing steps are performed in the web processing unit 100 such as cleaning, coating, cooling, heating, or structuring the web.
  • a web processing apparatus comprising one or more web guide controls according to the present invention may be used for guiding a web in various applications.
  • This web processing apparatus is particularly suitable for challenging webs such as a metal web, in particular aluminium web, and thin plastic web.
  • Thin web in this context is meant to be understood as having a thickness of between 1 ⁇ m and 200 ⁇ m, in particular between 30 ⁇ m and 140 ⁇ m.
  • Figure 3 shows a plain view of a typical embodiment of the present invention.
  • the different elements of this embodiment forming part of the transversal web tension adjustment are shown in the figure: an adjustment unit 310 at the first guide roller 201, a web tension measurement unit 300 at the second guide roller 202, and a data connection 330 between both guide rollers 201 and 202 to supply tension data to the adjustment unit 310.
  • the first guide roller 201 is positioned upstream of the second guide roller 202.
  • the data connection 330 is used to transmit information from the measurement unit to the adjustment unit 310.
  • the data connection 330 can also be used to transmit information from the adjustment unit 310 to an external interface.
  • this interface consists of a personal computer which processes the data from the adjustment unit 310.
  • the interface can consist of an analogue front panel comprising different element to tune the adjustment unit 310, i.e. using different potentiometers, dials, switches, and displays.
  • the interface can also consist of a digital device including numeric pads, graphical display, text commands, or a graphical user interface.
  • all these interfaces include different features such as controller function, calibration of the system, compensation of ambient conditions, or acquisition and recording of waveforms from the tension unit 300 or the adjustment unit 310.
  • Figure 4 shows a plain view of another embodiment of the web guide control 10 of the present invention where the adjustment unit consists of a rotating shaft axis 420 and a translation element 411.
  • the web tension measurement units 300 are placed at the bearings 431 and 432 of the second guide roller 202.
  • the translation element 411 encloses a drive 410, such as a motor, and a moving bearing 415 which can be displaced along the machine frame 452.
  • the shaft axis 206 is attached to the moving bearing 415 enclosing the drive 410.
  • the rotating shaft axis 420 encloses the shaft axis 205 which is attached with rotational freedom to the machine frame 451.
  • Different kind of motors can be used in the adjustment unit of the present invention.
  • the distance between the bearings of the two guide rollers 201 and 202 can be adjusted on one side.
  • a powered engine is typically used.
  • the drive for adjustment is either an electrical or hydraulic motor according to the present invention.
  • the position of the moving bearing 415 of the first guide roller 201 is adjusted in such a way that both tension measurement sensors in the second guide 202 roller face the same loading.
  • the web tension measurement units consists of a transducer and a strain gauge.
  • the transducer consists of a beam which stretches or compresses in response to varying tensions.
  • the strain gauge measures the corresponding change in electrical resistance.
  • the measurement performed by the strain gauge is amplified and converted to a voltage or current for further processing.
  • the web tension measurement units enclose an analogue or digital front end, for further processing of the tension measurement.
  • the web tension measurement units are aligned in order to maximize the measurement of the tension in the travelling direction of the web between the first and the second guide rollers.
  • the web tension measurement units are mounted in the guide rollers using different options, i.e., between pillow blocks, using cantilevered brackets, using securing via a flange or clamp, using studs, or threaded into through-holes.
  • Figure 5 shows a signal flow chart for the web guide control system according to an embodiment of the present invention, which includes a closed-loop controller based on a negative feedback 500 of the transversal tension measurement.
  • the closed-loop system maintains an output of the controlled system, e.g. the feedback signal 533, equal to a setpoint 534 value by using previous values of the feedback signal 533 and a control signal 532 fed to the controlled system which is an output of the controller itself.
  • the main elements of the flow chart are a controller 501 and a web guide system 502 constituting the web guide control 10 according to the present invention.
  • the tension difference between both sides of the second guide roller 202 is the feedback signal 533.
  • the setpoint 534 at the controller of the present invention has a null value in order to compensate for tension differences which correspond to transversal tensions acting on the web. Therefore, in typical embodiments of the present invention, the error 531 of the controller exactly corresponds to the tension difference measurement, i.e. the feedback signal 533. In typical embodiments of the present invention the controller compensates deviations from zero of the error 531 using the adjustment unit 310. Typically, this error 531 compensation translates to a distance adjustment of the shaft axes 205 and 215 at one side of both guide rollers 201 and 202. Therefore, the control signal 532, e.g. the controller output, typically corresponds to the distance between the shaft axes at one side of both guide rollers 201 and 202.
  • controller 501 different control approaches can be implemented in the controller 501.
  • a linear control approach is implemented in the controller 501 choosing from: proportional, integral and derivative (PID) control; proportional and integral (PI) control; proportional and derivative (PD) control; and proportional (P) control.
  • PID proportional, integral and derivative
  • PI proportional and integral
  • PD proportional and derivative
  • P proportional
  • controllers implemented in the present application can be analogue or digital interfaces including compatibility with transistor-transistor logic (TTL).
  • TTL transistor-transistor logic
  • digital interfaces works in a discrete manner where the values for the adjustment unit are refreshed after a certain and fixed time period ⁇ t .
  • Other special features can be present in controllers of the present invention such as self-tuning, signal computation or filtering, or built-in indicators.
  • the feedback signal at a given control step i corresponds to the difference between both tension measurements T i 215 and T i 216 .
  • values of D i+ 1 - D i other than zero correspond to a variation in the position at one side of the first guide roller 201. In other embodiments of the present invention, this corresponds to the signal for operation of the drive 410 at the adjustment unit in the first guide roller 201.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP07004189A 2007-02-28 2007-02-28 Web guide control, web processing apparatus and method for operating the same Not-in-force EP1964799B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE602007005973T DE602007005973D1 (de) 2007-02-28 2007-02-28 Netzführungssteuerung, Netzverarbeitungsvorrichtung und Betriebsverfahren dafür
AT07004189T ATE465112T1 (de) 2007-02-28 2007-02-28 Netzführungssteuerung, netzverarbeitungsvorrichtung und betriebsverfahren dafür
EP07004189A EP1964799B1 (en) 2007-02-28 2007-02-28 Web guide control, web processing apparatus and method for operating the same
TW097106673A TWI379016B (en) 2007-02-28 2008-02-26 Web guide control, web processing apparatus and method for operating the same
PCT/EP2008/052438 WO2008104593A1 (en) 2007-02-28 2008-02-28 Web guide control, web processing apparatus and method for operating the same
US12/528,789 US20100038468A1 (en) 2007-02-28 2008-02-28 Web guide control, web processing apparatus and method for operating the same
JP2009551934A JP2010520131A (ja) 2007-02-28 2008-02-28 ウェブガイドコントロール、ウェブ処理装置、およびこの操作方法
KR1020097020108A KR20090115971A (ko) 2007-02-28 2008-02-28 웨브 가이드 제어, 웨브 처리 장치 및 그 작동 방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07004189A EP1964799B1 (en) 2007-02-28 2007-02-28 Web guide control, web processing apparatus and method for operating the same

Publications (2)

Publication Number Publication Date
EP1964799A1 EP1964799A1 (en) 2008-09-03
EP1964799B1 true EP1964799B1 (en) 2010-04-21

Family

ID=38267575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07004189A Not-in-force EP1964799B1 (en) 2007-02-28 2007-02-28 Web guide control, web processing apparatus and method for operating the same

Country Status (8)

Country Link
US (1) US20100038468A1 (fi)
EP (1) EP1964799B1 (fi)
JP (1) JP2010520131A (fi)
KR (1) KR20090115971A (fi)
AT (1) ATE465112T1 (fi)
DE (1) DE602007005973D1 (fi)
TW (1) TWI379016B (fi)
WO (1) WO2008104593A1 (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8554354B1 (en) * 2010-02-12 2013-10-08 The Board Of Regents For Oklahoma State University Method for adaptive guiding of webs
JP5880808B2 (ja) * 2011-04-21 2016-03-09 東洋製罐株式会社 製袋装置
JP5958092B2 (ja) * 2012-05-31 2016-07-27 ソニー株式会社 成膜装置及び成膜方法
JP5992743B2 (ja) * 2012-07-12 2016-09-14 津田駒工業株式会社 プリプレグシートの供給装置
KR102083960B1 (ko) * 2012-08-30 2020-03-03 엘지전자 주식회사 그래핀의 제조 방법 및 그 그래핀과 그 제조 장치
EP2762431B1 (en) * 2013-01-31 2018-01-31 Applied Materials, Inc. Web guide control unit, web processing apparatus and method for operating the same
JP2016008326A (ja) * 2014-06-25 2016-01-18 東レエンジニアリング株式会社 基材搬送処理装置
WO2016208022A1 (ja) * 2015-06-25 2016-12-29 株式会社ニレコ ウェブ蛇行制御装置及び制御方法
CN106601390B (zh) * 2016-12-30 2017-12-19 嵊州北航投星空众创科技有限公司 一种具有移动张力调节功能的电容芯子卷绕装置
CN106847499B (zh) * 2016-12-30 2018-06-08 郑州大学综合设计研究院有限公司 一种电容芯子卷绕装置
JP7115820B2 (ja) * 2017-03-13 2022-08-09 王子ホールディングス株式会社 吸収性物品の製造装置に用いられる張力調整装置および張力調整方法
US20220002107A1 (en) * 2020-07-01 2022-01-06 CSG Holding, Inc. Webtension transducer load cell with integrated data interface
CN113258240B (zh) * 2021-05-19 2021-12-28 东南大学 一种多频信号波参量放大的非线性人工spp波导及计算方法

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JPH0361248A (ja) * 1989-07-31 1991-03-18 Toshiba Chem Corp 長尺フィルムの左右張力補正装置
DE9108408U1 (de) * 1991-07-08 1991-08-29 H. Krantz Textiltechnik GmbH, 52070 Aachen Vorrichtung zur Beseitigung von Schrägverzügen in einer laufenden Warenbahn
CA2074434C (en) * 1992-07-22 1997-04-15 Yasuo Ichii Strip tension control apparatus
US5419509A (en) * 1993-05-12 1995-05-30 Krayenhagen; Everett D. Web tensioning device for automatic cross-machine tensioning of continuous webs
US6659006B2 (en) * 1995-08-30 2003-12-09 Goss Graphic Systems Inc. Tension control device for a printing press
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JP4079161B2 (ja) * 2005-05-24 2008-04-23 松下電工株式会社 プリプレグ製造装置および製造方法

Also Published As

Publication number Publication date
WO2008104593A1 (en) 2008-09-04
ATE465112T1 (de) 2010-05-15
KR20090115971A (ko) 2009-11-10
TW200848539A (en) 2008-12-16
TWI379016B (en) 2012-12-11
JP2010520131A (ja) 2010-06-10
EP1964799A1 (en) 2008-09-03
DE602007005973D1 (de) 2010-06-02
US20100038468A1 (en) 2010-02-18

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