EP1945847B1 - Procede de reglage de la force lineaire dans un ecartement de travail d'une paire de rouleaux, et dispositif pour le traitement d'une feuille en bande continue - Google Patents

Procede de reglage de la force lineaire dans un ecartement de travail d'une paire de rouleaux, et dispositif pour le traitement d'une feuille en bande continue Download PDF

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Publication number
EP1945847B1
EP1945847B1 EP06791609A EP06791609A EP1945847B1 EP 1945847 B1 EP1945847 B1 EP 1945847B1 EP 06791609 A EP06791609 A EP 06791609A EP 06791609 A EP06791609 A EP 06791609A EP 1945847 B1 EP1945847 B1 EP 1945847B1
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EP
European Patent Office
Prior art keywords
pneumatic
hydraulic
pressure
hydraulic pressure
rollers
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.)
Active
Application number
EP06791609A
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German (de)
English (en)
Other versions
EP1945847A1 (fr
Inventor
Detlef Johst
Michael Bongaertz
Ivan Plohl
Marc Fremgens
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.)
Kuesters Textile GmbH
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Kuesters Textile GmbH
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Publication date
Application filed by Kuesters Textile GmbH filed Critical Kuesters Textile GmbH
Publication of EP1945847A1 publication Critical patent/EP1945847A1/fr
Application granted granted Critical
Publication of EP1945847B1 publication Critical patent/EP1945847B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/02—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by squeezing rollers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/02—Rollers
    • D06B23/021—Compressive rollers

Definitions

  • the invention relates to a method for adjusting the line force in the working nip of a pair of rollers comprising at least one hydraulically deflectable roller and a pneumatically actuated device for adjusting the rollers, wherein the adjustment of the line force by specifying a pneumatic actuating pressure and adjustment of the hydraulic pressure in the sense of Minimization of line force error takes place, as well as a device for the treatment of a web, with a nip forming roller pair, of which at least one roller is designed as a hydraulically deflectable roller, and with a pneumatically actuatable device for adjusting the rollers, wherein the adjustment of the line force in the Working gap by specifying a pneumatic actuation pressure and adjustment of the hydraulic pressure in the sense of minimizing the line force error takes place.
  • Such a device can also serve, for example, for the wet treatment of a web and is in the form of a padder for example from the EP-A-1 256 650 known.
  • This comprises a trough, in which a web is introduced from a deflection roller coming from top to bottom, whereupon a deflection roller at the bottom of the trough and vertically upwards out of the trough is led out, after passing a arranged above the trough spreader roller pair of rollers to pass through, the working gap is used to squeeze off excess treatment liquid.
  • one of the two rollers is arranged to be displaceable in the machine frame of the device in the sense of opening and closing the working gap.
  • a pneumatically actuated device is provided, wherein the pressure required for the particular application squish pressure is set by specifying the pneumatic actuation pressure.
  • At least one of the two rollers is designed as a hydraulically deflectable roller in which a rotating roller shell is hydraulically supported on a crosshead passing through the roller shell.
  • this fish belly profile can be at least partially compensated by the at least a hydraulic deflection-controllable roll is acted upon by a hydraulic pressure at a height which leads to a deflection correction of the roll shell in the sense of a substantially constant nip and thus over the entire width of the web substantially constant squeezing action.
  • Such a configured, belonging to the prior art device is - schematically - in Fig. 2 shown.
  • a disadvantage of such a device that the working areas of the pneumatic / hydraulic ratio controller are limited, so that the device can not be operated in the entire line force range, which would be covered with the work gap limiting rollers.
  • the invention is therefore based on the object, a method for adjusting the line force in the working gap of a pair of rollers or a device for Treatment of a web, in particular for the wet treatment of a web of the type mentioned, which allows the treatment of webs in a larger line force range in a nip formed between two rollers.
  • electro-pneumatic proportional valves for actuating the device for adjusting the rollers, which includes, for example, pneumatically actuated piston / cylinder units or inflatable bellows, on the other hand, an electro-hydraulic proportional valve for controlling the actuating pressure for the at least one to steer deflection-controllable roller.
  • a device influencing the hydraulic pressure such a device is particularly well suited, which is actuated pneumatically on the primary side. Accordingly, preferably by means of the data for the hydraulic pressures, an electro-pneumatic proportional valve is actuated and by means of the resulting pneumatic pressure the pneumatically actuated, the hydraulic pressure influencing device driven.
  • the device is then particularly preferred to design the device as a pneumatic hydraulic overflow valve.
  • control device which influences the pneumatic and hydraulic pressures in the sense of minimizing the difference between the desired and actual values. This can be done constructively by supplying the difference values to an electronic device which corrects the data taken from the data memory by the detected difference value.
  • inventive device for the treatment of a web thus comprises a data memory, in which the pneumatic pressures associated hydraulic pressures for the entire working spectrum of the roller pair are stored.
  • the data memory is provided in a programmable logic controller which includes signal outputs to which electrical signals correlating with the pneumatic and hydraulic pressures are applied, the signal outputs being operatively connected to the pneumatic or hydraulic pressure influencing devices.
  • the devices influencing the pneumatic pressure preferably comprise an electro-pneumatically acting proportional valve.
  • the device which influences the hydraulic pressure also comprises, particularly preferably, an electro-pneumatically acting proportional valve which, on the pneumatic side, has a device for influencing the hydraulic pressure Pressure is operatively connected, which may be formed, for example, as pneumatically actuated, hydraulic overflow valve.
  • the device comprises pneumatically / electrically or hydraulically / electrically acting measuring devices for detecting the pneumatic and hydraulic actuation pressures, since the values detected by means of these measuring devices can then be used to correct the signals specifying the pneumatic or hydraulic pressures , whereby a regulation of these prints in the strict sense is possible.
  • a device comprises a nip roller pair 3 formed from an upper roller 1 and a lower roller 2, the rollers 1, 2 forming between them a working gap through which a web of material is guided in the engaged state of the two rollers 1, 2.
  • the rolls are designed as hydraulically deflection-controllable rolls of known design comprising a roll shell 4, 5 rotatably mounted on a crosshead, which can be acted upon by means of hydraulically acting means in the direction of the working gap 6 from the inside with a hydraulic force.
  • the rollers are designed as so-called S-rollers, in which the area facing the nip within the roller shell and the area facing away from the nip can be subjected to hydraulic pressures of different levels.
  • the rollers 1, 2 supply lines 7, 8 for pressurized hydraulic fluid, which are connected to the working gap 6 toward acting, not shown in the drawing pressure chambers.
  • the hydraulic fluid is supplied via throttles 9, 10 each acting in an opposite direction pressure chamber, so that the roll shells 4, 5 are stored under a resulting, working gap 6 toward acting force on the respectively associated crosshead floating.
  • the hydraulic fluid is discharged after passing through the rollers 1, 2 via leads 11, 12.
  • the lower roller 2 is mounted to open and close the working gap 2 displaceable in a machine frame, not shown in the drawing.
  • a pneumatically actuated bellows 13, 14, as in Fig. 1 is indicated by the line L. If the bellows 13, 14 acted upon with compressed air, the lower roller 2 is made against the upper roller 1, with a line force, which is dependent on the level of pneumatic pressure, with which the bellows 13, 14 are acted upon.
  • the device according to the invention has a data memory 15 designed as a programmable logic controller in which the hydraulic pressure values associated with the pneumatic pressure values are used to correct the linear force error are stored for the entire working spectrum of the roller pair 4, 5.
  • the data memory 15 is connected to analog outputs 16, 17, 18, to each of which a pressure value characterizing, electrical signal is pending.
  • the output 16 is connected to an electro-pneumatic proportional valve 19, which reduces in response to the electrical input signal provided by a compressed air source 20 pneumatic pressure to a desired value.
  • the pneumatic output of the proportional valve 19 is connected via a pressure line 21 to the input of a volume amplifier 22, which allows the inflow of a compressed air volume via a line 23 into the bellows 13, depending on the primary pressure on the line 21 in the bellows 13, in this is the for Achieving the desired line force in the working gap 6 has built up necessary pneumatic pressure.
  • the latter is made possible by coupling a measuring line 24 to the line 23, whose end is connected to a pressure-voltage converter 25, which is associated with the detected pressure value in the electrical signal and via an electrical line 26 to an input 27 of the data memory 15 comprehensive programmable logic controller 30 supplies , With the thus detected difference between the actual and setpoint, the voltage applied to the output 16 signal is corrected until applied to the pressure-voltage converter 25 of the desired pneumatic pressure.
  • the output 18 of the programmable logic controller 13 is connected to the bellows 14 with the interposition of the same components, which are thus marked with the same reference numerals, but with a 'supplemented.
  • the measurement of the pneumatic actual pressure in the bellows 14 is in turn carried out by coupling a pressure-voltage converter 25 'via a line 24', wherein the electrical output of the pressure-voltage converter 25 'via an electrical line 26' connected to an input 28 for the purpose of setpoint-actual value adjustment is.
  • the electrical output 17 of the programmable logic controller 30 is also connected to an electro-pneumatic proportional valve 29, at the output of which provided by the compressed air source 20 pneumatic pressure is present at a predetermined by the pending at the output 17 electrical signal reduced amount.
  • This reduced pneumatic pressure is applied via a pressure line 31 to the control input of a pneumatically-hydraulically acting overflow valve 32.
  • the spill valve 32 is connected via a hydraulic supply line 33 with a hydraulic source 34, the hydraulic fluid under a required pressure in a required amount is available.
  • pneumatic control pressure hydraulic fluid via the supply lines 7 and 8, the rollers 1, 2 is supplied via a hydraulic line 35.
  • a pressure-voltage converter 36 is connected to the hydraulic line 35 via a measuring line 38. Its output is connected to an input 40 of the system-programmable controller 30 with an electrical line 39, so that by means of this, an influencing of the signal pending at the output 17 can be carried out in the sense of a desired actual value compensation.
  • Fig. 2 schematically illustrated device only a control of the hydraulic pressure as a function of the pneumatic pressure mechanically by a pneumatic, ratio controller comprehensive arithmetic unit 37, due to the limited work areas of the pneumatic / hydraulic ratio controller, the working range of the roller pair 1, 2 could not be exhausted.

Claims (10)

  1. Procédé pour ajuster la force linéaire dans l'écartement de travail d'une paire de rouleaux, qui comprend au moins un rouleau commandable en flexion de manière hydraulique et un dispositif à commande pneumatique pour placer les rouleaux,
    dans lequel l'ajustement de la force linéaire a lieu en prédéfinissant une pression d'actionnement pneumatique et en adaptant la pression hydraulique dans le sens d'une minimisation de l'erreur de force linéaire,
    caractérisé en ce que
    les valeurs de pression hydrauliques associées aux valeurs de pression pneumatiques pour l'ensemble du spectre de travail de la paire de rouleaux (3) sont stockées dans une mémoire de données (15), et en ce que ces données sont utilisées pour commander au moins une soupape proportionnelle électropneumatique (19, 19') pour actionner le dispositif pour placer les rouleaux (1, 2) et pour commander une source hydraulique (34) fournissant la pression d'actionnement hydraulique prévue pour l'au moins un rouleau commandable en flexion.
  2. Procédé selon la revendication 1, caractérisé en ce qu'une soupape proportionnelle électropneumatique (29) est commandée au moyen des données pour les pressions hydrauliques, et un dispositif influençant la pression hydraulique, à commande pneumatique, est commandé au moyen de la pression pneumatique résultante.
  3. Procédé selon la revendication 2, caractérisé en ce que le dispositif comprend une soupape de débordement agissant de manière pneumatique-hydraulique.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les pressions pneumatiques et hydrauliques sont mesurées et les valeurs de mesure sont utilisées pour comparer les valeurs réelles aux valeurs de consigne.
  5. Procédé selon la revendication 4, caractérisé en ce que les valeurs réelles et de consigne sont acheminées à un dispositif de régulation, qui influence les pressions pneumatiques et hydrauliques dans le sens d'une minimisation de la différence entre les valeurs réelles et de consigne.
  6. Dispositif de traitement d'une bande de produit, comprenant une paire de rouleaux (3) formant un écartement de travail (6), à partir de laquelle est réalisé au moins un rouleau (1, 2) en tant que rouleau commandable en flexion de manière hydraulique,
    et comprenant un dispositif à commande pneumatique pour placer les rouleaux, l'ajustement de la force linéaire dans l'écartement de travail (6) ayant lieu en prédéfinissant une pression d'actionnement pneumatique et en adaptant la pression hydraulique dans le sens d'une minimisation de l'erreur de force linéaire,
    caractérisé en ce que
    le dispositif présente une mémoire de données (15) dans laquelle sont mémorisées les valeurs de pression hydrauliques associées aux valeurs de pression pneumatiques pour le spectre de travail total de la paire de rouleaux (3),
    et en ce que la mémoire de données (15) est prévue dans une commande programmable par mémoire (30), qui comprend des sorties de signaux (16, 17, 18), auxquelles s'appliquent des signaux électriques corrélés aux pressions pneumatiques et hydrauliques, les sorties de signaux (16, 17, 18) étant connectées fonctionnellement aux dispositifs (19, 19', 29) influençant la pression pneumatique ou hydraulique.
  7. Dispositif selon la revendication 6, caractérisé en ce que le dispositif (19, 19', 29) influençant la pression pneumatique comprend une soupape proportionnelle (19, 19', 29) agissant de manière électropneumatique.
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que le dispositif influençant la pression hydraulique comprend une soupape proportionnelle (29) agissant de manière électropneumatique, qui est connectée fonctionnellement du côté pneumatique à un dispositif pour influencer la pression hydraulique.
  9. Dispositif selon la revendication 8, caractérisé en ce que le dispositif pour influencer la pression hydraulique comprend une soupape de débordement hydraulique (32) à commande pneumatique.
  10. Dispositif selon la revendication 9, caractérisé en ce que des dispositifs de mesure (25, 25', 36) agissant de manière pneumatique/électrique ou hydraulique/électrique sont prévus pour détecter des pressions d'actionnement pneumatiques et hydrauliques.
EP06791609A 2005-10-07 2006-08-22 Procede de reglage de la force lineaire dans un ecartement de travail d'une paire de rouleaux, et dispositif pour le traitement d'une feuille en bande continue Active EP1945847B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005048458A DE102005048458A1 (de) 2005-10-07 2005-10-07 Verfahren zur Einstellung der Linienkraft im Arbeitsspalt eines Walzenpaares sowie Vorrichtung zur Behandlung einer Warenbahn
PCT/EP2006/008233 WO2007042103A1 (fr) 2005-10-07 2006-08-22 Procede de reglage de la force lineaire dans un ecartement de travail d'une paire de rouleaux, et dispositif pour le traitement d'une feuille en bande continue

Publications (2)

Publication Number Publication Date
EP1945847A1 EP1945847A1 (fr) 2008-07-23
EP1945847B1 true EP1945847B1 (fr) 2011-06-15

Family

ID=37441785

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Application Number Title Priority Date Filing Date
EP06791609A Active EP1945847B1 (fr) 2005-10-07 2006-08-22 Procede de reglage de la force lineaire dans un ecartement de travail d'une paire de rouleaux, et dispositif pour le traitement d'une feuille en bande continue

Country Status (7)

Country Link
EP (1) EP1945847B1 (fr)
CN (1) CN101278087B (fr)
AT (1) ATE513077T1 (fr)
BR (1) BRPI0616864B1 (fr)
DE (1) DE102005048458A1 (fr)
HK (1) HK1123585A1 (fr)
WO (1) WO2007042103A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699284A2 (de) * 2008-07-31 2010-02-15 Rieter Ag Maschf Anpressvorrichtung für Kalanderwalzen.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH604940A5 (fr) * 1975-12-08 1978-09-15 Escher Wyss Ag
DE3024570A1 (de) * 1980-06-28 1982-01-21 Küsters, Eduard, 4150 Krefeld Einrichtung zur einwirkung auf warenbahnen mit mindestens einer walze
DE3410136A1 (de) * 1984-03-20 1985-10-03 Küsters, Eduard, 4150 Krefeld Verfahren zur steuerung der liniendruckverteilung in walzenanordnungen
DE4431594C2 (de) * 1994-09-05 1998-04-16 Kleinewefers Gmbh Durchbiegungssteuerbare Walze
DE10319345B3 (de) * 2003-04-30 2004-11-04 Eduard Küsters Maschinenfabrik GmbH & Co. KG Walze für die Druckbehandlung von Warenbahnen

Also Published As

Publication number Publication date
ATE513077T1 (de) 2011-07-15
EP1945847A1 (fr) 2008-07-23
BRPI0616864A2 (pt) 2013-01-01
WO2007042103A1 (fr) 2007-04-19
DE102005048458A1 (de) 2007-04-26
CN101278087B (zh) 2011-02-16
CN101278087A (zh) 2008-10-01
HK1123585A1 (en) 2009-06-19
BRPI0616864B1 (pt) 2016-09-13

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