EP0545236A1 - Appareil de réglage pour dispositif de déroulage de bandes, en particulier pour des machines rotatives d'impression - Google Patents

Appareil de réglage pour dispositif de déroulage de bandes, en particulier pour des machines rotatives d'impression Download PDF

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Publication number
EP0545236A1
EP0545236A1 EP92120027A EP92120027A EP0545236A1 EP 0545236 A1 EP0545236 A1 EP 0545236A1 EP 92120027 A EP92120027 A EP 92120027A EP 92120027 A EP92120027 A EP 92120027A EP 0545236 A1 EP0545236 A1 EP 0545236A1
Authority
EP
European Patent Office
Prior art keywords
characteristic curve
pendulum roller
control device
der
control
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.)
Withdrawn
Application number
EP92120027A
Other languages
German (de)
English (en)
Inventor
Roland Merz
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0545236A1 publication Critical patent/EP0545236A1/fr
Withdrawn legal-status Critical Current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
    • B65H23/04—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
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/063—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle and controlling web tension

Definitions

  • Control arrangements are used in unwinding devices for webs, which implement a desired web tension in the web drawn off the winding roll.
  • a pendulum roller which is partially wrapped around by the web, functions as a sensor for the web tension.
  • a control loop regulates the braking torque of a brake acting on the circumference or center of the winding roller. Malfunctions are caused by the changing diameter of the winding roll, roll lay u. a. corrected.
  • Position control of the pendulum roller is known, which enables control loop structures (DD-PA WP B65H / 341508 8) 1) in which the center position of the pendulum roller is specified as a setpoint in order to have a large control reserve in the event of disturbance variables such as roll impact, emergency stop, roll change.
  • the first-mentioned type of interference sizes can lead to an oscillation and thus to an instability of the control loop.
  • the object of the invention is to provide a control arrangement for unwinding devices of webs, in particular on rotary printing presses, with a pendulum roller for a middle position control and with a measuring device which detects the position of the pendulum roller on the output side and is connected to a control device which acts on a brake of the winding roller, for all Interference levels occurring in the operating state ensure great stability of the control loop.
  • a characteristic curve correction element is arranged between the sensor and the control device, the characteristic curve of which is flat in the region of the central position of the pendulum roller and progressively steeper towards its end positions.
  • the linear characteristic curve representing the functional relationship existing between the pendulum roller deflection and the signal emitted by the sensor is corrected as a function of the disturbance quantities occurring in the operating state so that all disturbance quantities are regulated only to the extent necessary for the required maintenance of the web tension, so that the Stability of the control loop is always guaranteed.
  • the brake 9 engages the spindle 10 of the winding roll.
  • the invention can be used in the same way if the braking force acts on the circumference of the winding roll 1, for example via a belt.
  • the output signal of the control device can also be supplied, for example, to an electrical drive of the winding roll operating in a four-quadrant drive.
  • the characteristic curve correction element 5 can be implemented as an electronic circuit.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP92120027A 1991-11-28 1992-11-25 Appareil de réglage pour dispositif de déroulage de bandes, en particulier pour des machines rotatives d'impression Withdrawn EP0545236A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914139101 DE4139101A1 (de) 1991-11-28 1991-11-28 Regelanordnungen fuer abwickeleinrichtungen fuer bahnen, insbesondere an rotationsdruckmaschinen
DE4139101 1991-11-28

Publications (1)

Publication Number Publication Date
EP0545236A1 true EP0545236A1 (fr) 1993-06-09

Family

ID=6445755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120027A Withdrawn EP0545236A1 (fr) 1991-11-28 1992-11-25 Appareil de réglage pour dispositif de déroulage de bandes, en particulier pour des machines rotatives d'impression

Country Status (2)

Country Link
EP (1) EP0545236A1 (fr)
DE (1) DE4139101A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110316595A (zh) * 2018-03-30 2019-10-11 江苏九天光电科技有限公司 一种钢带收卷用双张力控制装置及方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501982B4 (de) * 1995-01-24 2009-06-10 Elau Gmbh Zuführvorrichtung einer diskontinuierlich bahnförmiges Material verarbeitenden Maschine
DE29720235U1 (de) * 1997-11-14 1998-01-22 Océ Printing Systems GmbH, 85586 Poing Vorrichtung zum Transportieren und Zwischenspeichern eines bahnförmigen Aufzeichnungsträgers in einem elektrografischen Druck- oder Kopiergerät
DE19923204B4 (de) * 1999-05-20 2004-04-29 Man Roland Druckmaschinen Ag Drehzahl-Regelanordnung für eine Abwickeleinrichtung
DE19927118C2 (de) * 1999-06-15 2003-12-24 Bernhard Engel Vorrichtung zum Steuern der Drehgeschwindigkeit eines motorisch angetriebenen Wickelkörpers sowie Verfahren
US20120292422A1 (en) 2011-04-18 2012-11-22 Alkar-Rapidpak-Mp Equipment, Inc. Systems and methods for supplying a web of packaging material to an indexing-motion packaging machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2528619A1 (de) * 1974-07-01 1976-01-22 Harris Corp Vorrichtung und verfahren zum steuern der spannung der einem druckwerk zugefuehrten bedruckstoffbahn
US4151594A (en) * 1976-02-26 1979-04-24 Bobst-Champlain, Inc. Web tension control for high-speed web handling equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD295135A5 (de) * 1990-06-11 1991-10-24 Polygraph Druckmaschinenwerk,De Regelanordnung fuer abwickeleinrichtungen fuer bahnen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2528619A1 (de) * 1974-07-01 1976-01-22 Harris Corp Vorrichtung und verfahren zum steuern der spannung der einem druckwerk zugefuehrten bedruckstoffbahn
US4151594A (en) * 1976-02-26 1979-04-24 Bobst-Champlain, Inc. Web tension control for high-speed web handling equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110316595A (zh) * 2018-03-30 2019-10-11 江苏九天光电科技有限公司 一种钢带收卷用双张力控制装置及方法

Also Published As

Publication number Publication date
DE4139101A1 (de) 1993-06-03

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