EP1020391A1 - Dispositif et méthode pour alimenter une bande de matériau déroulée d'une bobine à une machine de traitement - Google Patents

Dispositif et méthode pour alimenter une bande de matériau déroulée d'une bobine à une machine de traitement Download PDF

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Publication number
EP1020391A1
EP1020391A1 EP99124513A EP99124513A EP1020391A1 EP 1020391 A1 EP1020391 A1 EP 1020391A1 EP 99124513 A EP99124513 A EP 99124513A EP 99124513 A EP99124513 A EP 99124513A EP 1020391 A1 EP1020391 A1 EP 1020391A1
Authority
EP
European Patent Office
Prior art keywords
winding roll
web
material web
deflection device
fluctuations
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.)
Granted
Application number
EP99124513A
Other languages
German (de)
English (en)
Other versions
EP1020391B1 (fr
Inventor
Othmar Hoffmann
Bernhard Pasman
Armin Hutzenlaub
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.)
Kampf GmbH and Co Maschinenfabrik
Original Assignee
Kampf GmbH and Co Maschinenfabrik
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 Kampf GmbH and Co Maschinenfabrik filed Critical Kampf GmbH and Co Maschinenfabrik
Publication of EP1020391A1 publication Critical patent/EP1020391A1/fr
Application granted granted Critical
Publication of EP1020391B1 publication Critical patent/EP1020391B1/fr
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
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/048—Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/16—Irregularities, e.g. protuberances
    • B65H2511/166—Irregularities, e.g. protuberances relative to diameter, eccentricity or circularity

Definitions

  • the invention relates to a method and an apparatus for feeding one of Wound roll drawn material web to a processing machine according to the The preamble of claim 1 or claim 2.
  • material webs for example paper or cardboard webs, plastic or Metal foils, continuously fed to a subsequent processing machine, these are known to be unwound from winding rolls, which are in an unwinder are attached.
  • DE 37 04 677 describes a method and a device of the generic type known, in which the material web after Unwinding to compensate for length fluctuations performed around a deflection device becomes movable with a component in the direction of the incoming material web is stored.
  • the deflection device is a pendulum-mounted compensating roller, the Pendulum movement is dampened by a damping cylinder, its counterforce is proportional to the web tension.
  • the material web is soothed and with constant Voltage supplied to the processing machine.
  • the invention is therefore based on the object of a method and an apparatus Generic type to create with the (large) changes in length high frequencies can be compensated.
  • a compensation device deflecting the web is used, which are not freely movable, but by means of a controlled or regulated actuator is positioned with a component in the feed direction of the material web.
  • a Measuring device determines the fluctuations in the diameter of the winding roll, and in The actuator is dependent on the measured values from a control device controlled or regulated so that the compensation device in each case in the required position is moved.
  • the device according to the invention includes an unwinding device into which a Winding roll 1 is suspended for unwinding the material web 2.
  • a measuring device 3 continuously measures the diameter of the winding roll 1, and a control device determines the fluctuations in diameter from the measured values, caused by out of roundness in the winding roll 1.
  • the fluctuations in Diameters of the winding roll 1 lead to changes in length in the running web 2, compensated by the compensation device 4 arranged below become.
  • the compensation device 4 arranged behind the unwinding device consists of a roller 5 deflecting the web 2, the position of which with a component in Feed direction of the material web 2 is changeable.
  • a change in the position of the Roller 4 leads to a change in length of the railway line, with which there is a change in length the web 2 can compensate.
  • the roller 5 is as in the Position changeable deflector mounted on the free end of a lever 6, the extending downward in the direction of the winding roll 1 is pivotally suspended.
  • a control device For this purpose, its position is continuously determined and sent to a control device
  • a hydraulic piston-cylinder unit is used as the actuator or a position-controlled linear motor is used.
  • suspended roller 5 can also be a linearly movable roller or another deflecting element which can be moved linearly or along a curved path be used to change the length of the railway line.
  • the load cell 9 detects the amount of tension in the web 2.
  • the measurement signal is used to control the speed of the winding roll 1 and thus used for the control of the tension in the web 2.
  • the roller 5 is preset to a middle position.
  • the control device determines from the measurement signals of the measuring device 3 the fluctuations in the winding roll diameter and controls the actuator 7, the if necessary, the position of the roller 5 changed so that the fluctuations in the Web length can be compensated.
  • the compensation system (measuring device 3, Control device, actuator 7, roller 5) is designed so dynamically that fluctuations can be compensated with a frequency of up to 8 Hz.
  • FIG. 2 shows an expanded version of a device according to the invention, which an additional compensation device 10 to compensate for short pulsation waves higher frequency does not contain that of the compensation device 4 can be corrected.
  • the additional compensation device 10 consists of a deflection tube 11 which a compressed air supply is connected and the pipe wall of the web 2 wrapped area has a plurality of passage openings for the compressed air.
  • the web 2 is so contactless on a compressed air cushion 12 floating around the tube 11 steered.
  • the height of the air cushion 12 can depend on the performance of the compressed air blower can be varied between 3 mm and 12 mm. Since the air volume under the material web 2 is almost massless, very high-frequency vibrations with small amplitude be compensated very largely.
  • the interaction of the position-controlled roller 5 with the air cushion 12 allows fluctuations in the web length over a very to compensate for a wide frequency and amplitude range caused by non-roundness in the Winding roll 1 are caused.
  • the pressure of the air cushion 12 is dependent on the tensile stress in the web 2, can the value advantageously as a control variable for controlling the tension in the web 2 be used.
  • the pressure in the air cushion 12 is a Probe 13 measured and fed to a pressure / current converter 14. There will be a generates an appropriate electrical signal, which - as described above - for Regulation of the speed of the winding roll 1 and thus to regulate the tension in the Lane 2 is used.
  • FIG. 3 shows an embodiment in which the two compensation devices 5, 10 according to FIG. 2 are combined in a single device:
  • the position-controlled roller is replaced by an air tube 15 as a deflection device, the Structure corresponds to the air tube 11 according to FIG. 2, and this additionally corresponds to the roller 5 Figure 2 is changeable in its position.
  • the web 2 is contactless on one Air cushion 12 guided around the pipe 15 to a subsequent deflecting roller 16 and from this is directed to the processing machine.
  • the position of the air tube 15 is on the in the embodiment of Figure 1 described manner depending on the Measuring signal of the measuring device 3 controlled, that is, from the fluctuations in the diameter the winding roll 1.
  • the air cushion 12 automatically compensates for high-frequency pulsations with low amplitude. In this embodiment too, the value of Pressure in the air cushion 12 used to control the tension of the web 2, as in the embodiment of Figure 3 described.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP99124513A 1999-01-11 1999-12-09 Dispositif et méthode pour alimenter une bande de matériau déroulée d'une bobine à une machine de traitement Expired - Lifetime EP1020391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19900536A DE19900536A1 (de) 1999-01-11 1999-01-11 Verfahren und Vorrichtung zum Zuführen einer von einer Wickelrolle abgezogenen Materialbahn zu einer Verarbeitungsmaschine
DE19900536 1999-01-11

Publications (2)

Publication Number Publication Date
EP1020391A1 true EP1020391A1 (fr) 2000-07-19
EP1020391B1 EP1020391B1 (fr) 2003-05-02

Family

ID=7893830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124513A Expired - Lifetime EP1020391B1 (fr) 1999-01-11 1999-12-09 Dispositif et méthode pour alimenter une bande de matériau déroulée d'une bobine à une machine de traitement

Country Status (2)

Country Link
EP (1) EP1020391B1 (fr)
DE (2) DE19900536A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849649A1 (fr) * 2003-01-08 2004-07-09 Komori Chambon Appareil de faconnage a plaques interchangeables

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657198A (en) * 1984-05-18 1987-04-14 Fuji Photo Film Co., Ltd. Apparatus for measuring the thickness of a roll winding on or unwinding from a core
DE3704677A1 (de) * 1986-12-27 1988-07-07 Kampf Gmbh & Co Maschf Verfahren und vorrichtung zum kantenrichtigen einfuehren einer materialbahn in eine verarbeitungsmaschine
DE4425355A1 (de) * 1993-07-16 1995-01-26 Siemens Ag Regelung für den Antrieb eines Haspels
DE19614300A1 (de) * 1995-04-21 1996-10-24 Abb Patent Gmbh Verfahren zur selbstregulierenden Kompensation der Auswirkung des ungleichmäßigen Rundlaufs einer Rolle
US5659229A (en) * 1995-01-31 1997-08-19 Kimberly-Clark Worldwide, Inc. Controlling web tension by actively controlling velocity of dancer roll

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657198A (en) * 1984-05-18 1987-04-14 Fuji Photo Film Co., Ltd. Apparatus for measuring the thickness of a roll winding on or unwinding from a core
DE3704677A1 (de) * 1986-12-27 1988-07-07 Kampf Gmbh & Co Maschf Verfahren und vorrichtung zum kantenrichtigen einfuehren einer materialbahn in eine verarbeitungsmaschine
DE4425355A1 (de) * 1993-07-16 1995-01-26 Siemens Ag Regelung für den Antrieb eines Haspels
US5659229A (en) * 1995-01-31 1997-08-19 Kimberly-Clark Worldwide, Inc. Controlling web tension by actively controlling velocity of dancer roll
DE19614300A1 (de) * 1995-04-21 1996-10-24 Abb Patent Gmbh Verfahren zur selbstregulierenden Kompensation der Auswirkung des ungleichmäßigen Rundlaufs einer Rolle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849649A1 (fr) * 2003-01-08 2004-07-09 Komori Chambon Appareil de faconnage a plaques interchangeables

Also Published As

Publication number Publication date
EP1020391B1 (fr) 2003-05-02
DE19900536A1 (de) 2000-07-13
DE59905311D1 (de) 2003-06-05

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