EP0555856B1 - Verfahren zum Einstellen eines Fühlers bei einer Bahnlaufregeleinrichtung - Google Patents

Verfahren zum Einstellen eines Fühlers bei einer Bahnlaufregeleinrichtung Download PDF

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Publication number
EP0555856B1
EP0555856B1 EP93102165A EP93102165A EP0555856B1 EP 0555856 B1 EP0555856 B1 EP 0555856B1 EP 93102165 A EP93102165 A EP 93102165A EP 93102165 A EP93102165 A EP 93102165A EP 0555856 B1 EP0555856 B1 EP 0555856B1
Authority
EP
European Patent Office
Prior art keywords
sensor
web
edge
measuring range
operating point
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
Application number
EP93102165A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0555856A1 (de
Inventor
Hans Joachim Schrauwen
Theodor Nacke
Jürgen Dipl.-Ing. Bettführ
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.)
BST GmbH
Original Assignee
BST Servo Technik GmbH
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 BST Servo Technik GmbH filed Critical BST Servo Technik GmbH
Publication of EP0555856A1 publication Critical patent/EP0555856A1/de
Application granted granted Critical
Publication of EP0555856B1 publication Critical patent/EP0555856B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204—Sensing transverse register of web

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • a web guiding device in which the web run is controlled by means of an optical sensor which detects the web edge without contact, the operating point of the control is set to the center of the sensor, so that when the sensor is exactly positioned one half of the sensor is covered by the path to be controlled, while the other half is exposed.
  • This operating point is stored in a memory and the web guiding system is designed for this reference variable, so that if the web edge deviates from the operating point, the web guiding system adjusts the web so that the web edge comes to rest on the operating point or the center of the sensor.
  • the sensor adjustment device must be activated in order to adjust the sensor in a corresponding way.
  • the sensor adjustment device works relatively imprecisely and has a certain overrun, so that with this sensor adjustment this e.g. is moved beyond the intended position.
  • the operating point must then be returned using the correction keys and corrected so that it corresponds to the desired position. This adjustment process when the working point is adjusted beyond the measuring range of the sensor is relatively cumbersome.
  • the invention has for its object to provide a method of the type mentioned in such a way that the operating point of the control can be easily and quickly adjusted beyond the measuring range of the sensor.
  • a threshold is specified in the electronic signal processing device on both sides of the sensor center or the working point.
  • a threshold is given by means of which a signal is emitted, on the one hand, by means of which the web guiding system previously working is switched off or is blocked, so that the web edge remains in the position reached, and on the other hand the sensor adjusting device is controlled so that it carries out an edge search process by adjusting the sensor, the center of the sensor being repositioned on the web edge by the exact edge search process.
  • the web guiding switched on again and the same process can be repeated until the operating point of the control is in the desired position, which can be far outside the measuring range of the sensor in the original position, whereupon in the new position the measuring range of the sensor for a Working point correction is available.
  • Fig. 1 shows a schematic representation of circular optical sensors 1 in a U-shaped holder 6, which can be adjusted by a sensor adjusting device 5, on both sides of a material web 2, in which case the web edges cover sensors 1 in half.
  • An electronic signal processing and control device is shown schematically at 4, which receives and processes the sensor signals. Furthermore, the sensor adjusting devices 5 for adjusting the sensor 1 are controlled by this control device 4.
  • FIG. 2 denotes a circular optical sensor, which in the first position a) is aligned with the center of the sensor on the edge 2 of a material web to be controlled, so that the material web covers one sensor half, as indicated by hatching.
  • the working point W of the sensor is first adjusted within the measuring range D of the sensor 1 by means of correction keys to the left from the position a) while the web guiding is switched on, so that the web edge 2 follows the operating point left within the measuring range D is adjusted as shown in position b).
  • the web guiding is switched on again and the working point of the sensor is again moved to the left within the measuring range D by means of the correction keys if the working point shift was not sufficient in the first step. If the threshold 3 is reached in this case, the same process is repeated until, for example, an operating point shift shown in position d) is reached which is outside the measuring range D of the sensor 1 is in the original position a).
  • the working point is first shifted relatively slowly within the measuring range, whereupon after the threshold 3 is reached, the edge search process is carried out by the sensor adjusting device with increased actuating speed.
  • the web edge is first moved into the sensor, whereupon the sensor follows the web edge. If the operating point is shifted in the opposite direction, the web edge is first moved out of the sensor, whereupon the sensor follows the web edge and this step-by-step process is repeated.
  • the method according to the invention of shifting the working point beyond the predetermined measuring range can also be carried out in the same way in the case of sensors other than optical sensors, for example pneumatic sensors.
  • the described shifting of the working point can be carried out with edge and center control, whereby independently adjustable sensors are used.
  • the working point When correcting the working point using correction buttons, the working point is slowly shifted within the measuring range, for example with a rate of change of 1 mm / sec, while during the edge search process the sensor is adjusted with an adjusting speed of for example 30 mm / sec.
  • the operating point of the control can be steplessly shifted over the entire adjustment range of the sensor adjustment device, even if the sensor adjustment device only has a detent-like fine adjustment of e.g. Permits 0.5 mm.
  • This operating point shift can also be carried out with a web center control that works with sensors that can be adjusted independently of one another.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Control Of Conveyors (AREA)
  • Paper (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Air Bags (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Fluid Pressure (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
EP93102165A 1992-02-11 1993-02-11 Verfahren zum Einstellen eines Fühlers bei einer Bahnlaufregeleinrichtung Expired - Lifetime EP0555856B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4203978 1992-02-11
DE4203978A DE4203978C1 (xx) 1992-02-11 1992-02-11

Publications (2)

Publication Number Publication Date
EP0555856A1 EP0555856A1 (de) 1993-08-18
EP0555856B1 true EP0555856B1 (de) 1996-05-22

Family

ID=6451418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93102165A Expired - Lifetime EP0555856B1 (de) 1992-02-11 1993-02-11 Verfahren zum Einstellen eines Fühlers bei einer Bahnlaufregeleinrichtung

Country Status (8)

Country Link
US (1) US5379659A (xx)
EP (1) EP0555856B1 (xx)
JP (1) JP2559087B2 (xx)
AT (1) ATE138348T1 (xx)
CA (1) CA2089248A1 (xx)
DE (2) DE4203978C1 (xx)
DK (1) DK0555856T3 (xx)
ES (1) ES2087586T3 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3557196B2 (ja) * 2002-03-29 2004-08-25 株式会社東京機械製作所 連続紙処理装置の連続紙走行位置修正装置
US20090321491A1 (en) * 2008-06-06 2009-12-31 Wick William R W Edge Detection System
US20110204611A1 (en) * 2010-02-18 2011-08-25 Daimler Trucks North America Llc Fiber reinforced polymer frame rail
CN103264919A (zh) * 2013-05-10 2013-08-28 奇瑞汽车股份有限公司 一种卷材纠偏控制系统

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786675A (en) * 1953-09-03 1957-03-26 Goodrich Co B F Side position regulating apparatus
GB1192499A (en) * 1968-08-06 1970-05-20 Mount Hope Machinery Ltd Arrangement for Controlling the Lateral Position of a Moving Web of Material
US3568904A (en) * 1969-08-01 1971-03-09 Gpe Controls Inc Sample data web and strip guide control system
US3682362A (en) * 1971-03-15 1972-08-08 Rockford Servo Corp Web edge sensing and guiding apparatus
US3786974A (en) * 1972-07-19 1974-01-22 Eastman Kodak Co Web edge guide system
DD123663A1 (xx) * 1975-05-12 1977-01-12
US4077579A (en) * 1976-04-12 1978-03-07 Columbia Ribbon & Carbon Mfg. Co., Inc. Edge alignment apparatus
US4291825A (en) * 1979-04-19 1981-09-29 Baldwin-Korthe Web Controls, Inc. Web guiding system
JPS5719246A (en) * 1980-07-02 1982-02-01 Hitachi Cable Ltd Meandering corrector for elongated matters
US4331274A (en) * 1980-10-14 1982-05-25 Itek Corporation Tracking system
JPS5842904A (ja) * 1981-09-08 1983-03-12 Mitsutoyo Mfg Co Ltd 測長装置
USRE32967E (en) * 1982-11-24 1989-06-27 Xerox Corporation Web tracking system
DE3614981A1 (de) * 1986-05-02 1987-11-05 Erhardt & Leimer Gmbh Verfahren und vorrichtung zum fuehren einer laufenden warenbahn
JPH0657580B2 (ja) * 1986-11-19 1994-08-03 富士写真フイルム株式会社 ウエブの蛇行修正方法及び装置
US4991761A (en) * 1988-10-31 1991-02-12 Web Printing Controls Co., Inc. Web guide apparatus
US5098507A (en) * 1991-01-28 1992-03-24 Mao Chen Chi Relieved plastic floor tile rolling press with an automatic alignment device

Also Published As

Publication number Publication date
CA2089248A1 (en) 1993-08-12
ATE138348T1 (de) 1996-06-15
DK0555856T3 (da) 1996-10-14
DE59302632D1 (de) 1996-06-27
JP2559087B2 (ja) 1996-11-27
ES2087586T3 (es) 1996-07-16
US5379659A (en) 1995-01-10
JPH0680306A (ja) 1994-03-22
DE4203978C1 (xx) 1993-08-19
EP0555856A1 (de) 1993-08-18

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