EP1760192A1 - Rouleau pour machine à papier - Google Patents

Rouleau pour machine à papier Download PDF

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Publication number
EP1760192A1
EP1760192A1 EP06115939A EP06115939A EP1760192A1 EP 1760192 A1 EP1760192 A1 EP 1760192A1 EP 06115939 A EP06115939 A EP 06115939A EP 06115939 A EP06115939 A EP 06115939A EP 1760192 A1 EP1760192 A1 EP 1760192A1
Authority
EP
European Patent Office
Prior art keywords
suction
pressure
roll
box
blower roll
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Withdrawn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
EP06115939A
Other languages
German (de)
English (en)
Inventor
Klaus Stier
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.)
Voith Patent GmbH
Original Assignee
Voith Patent 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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1760192A1 publication Critical patent/EP1760192A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/10—Suction rolls, e.g. couch rolls

Definitions

  • the invention relates to a suction or blower roll of a machine for producing and / or finishing a paper, cardboard, tissue or another fibrous web with a rotatable, perforated roll shell and a pressure or suction box, with a lower or a Overpressure source is connected.
  • Under- or overpressure zones in the form of a pressure box which is connected to a lower or overpressure source and adjacent to a moving surface such as the roll shell, are used at various points of a machine for producing a fibrous web, in particular a paper machine, for example in the Shaper, in the press section and / or in the dryer section.
  • the suction boxes can be used, for example, within suction rolls. These usually have fixed, inner suction boxes which form zones of different pressure levels, wherein the sealing of the negative pressure zones is effected by sealing elements, which usually extend at least substantially over the entire length of the roll.
  • this object is achieved in that at least one bending beam is provided, which is formed and is arranged relative to the pressure or suction box in the suction or blower roll, which is compensated by the bending beam, the deflection of the pressure or suction box.
  • At least one bending beam is installed on the suction box or on the pressure box such that the bending beam eliminates the deflection of the suction box or of the pressure box via a pretension.
  • a plurality of, each provided with its own adjusting means bending beams are used, if the size and the deflections of the suction or the pressure box require it.
  • the bending line of the pressure or suction box of the deflection of the roll shell can be adjusted via a controller. This measure is particularly important in press rolls with different pressing pressures of importance.
  • the bias voltage can be generated in various ways; In particular, it can be applied hydraulically, pneumatically, electrically or by means of at least one screw jack or by means of at least one screw on the bending beam or bending beam. As a rule, several screws are distributed over the length of the bending beam, which can be adjusted during the initial assembly or on the occasion of later revision work on the roller so that the Deflection of the pressure or the suction box is compensated.
  • the suction or blowing roll is characterized in that between the at least one bending beam and the pressure or suction box at least one spacer element for adjusting a fixed distance between the bending beam and the pressure or suction box is arranged.
  • the spacer or intermediate piece determines the distance between the bending beam and the pressure or suction box.
  • the clamping elements can be arranged at a certain distance on a rail; or their position on the rail is variable, so that can be fixed already during assembly advantageous positions of the clamping elements.
  • the tension under which the clamping elements are located can also be set according to the respective overpressure or underpressure.
  • the pressure or suction box is mounted above at least one vibration damper relative to the at least one bending beam.
  • vibration damper with the hydraulic or pneumatic cylinders or with electromechanical actuators are integrated.
  • their setting data can be used to control the pressure or suction box.
  • the suction or blowing roll is characterized in that between the pressure or suction box and the least one bending support an oil pressure cushion or a compressed air cushion is arranged, so that as a result, the pressure or suction box on the between the bending beam and this arranged oil or Air cushion floats.
  • vibration dampers based on the multi-disc compressed air cushion principle in conjunction with the oil pressure cushion.
  • vibration dampers are also referred to as hydro-pneumatic vibration damper.
  • hydro-mechanical vibration dampers such as, for example, an oil-spring damper system.
  • a measuring device is used, in particular a laser as a light source in conjunction with a light detector, for measuring the deflection of the pressure or suction box, in the suction or blower roll;
  • the measuring device is either permanently installed inside the suction or blower roll in order to constantly perform a deflection compensation can, or the measuring device is used once during assembly or additionally later in a revision of the roller without being firmly installed in the roller.
  • the installation of the measuring device within the roller is particularly advantageous because the deflection of the pressure or the suction box changes a little depending on the set positive or negative pressure and therefore should be compensated accordingly again.
  • a control or regulating unit can be used which controls or regulates an adjustment of the preload of the at least one adjusting screw or the at least one adjusting element as a function of the deflection measured by the measuring device.
  • suction or blow rolls can be built smaller and cheaper.
  • the vibration behavior of the roller is improved.
  • the bending line of the suction or pressure box can be controlled, which also results in an improved Dichtancenanpressung.
  • the vibration behavior can be reduced by means of vibration dampers.
  • Over a Vacuum control can be an optimal sealing strip contour set with changing underpressure or overpressure.
  • the principle according to the invention of providing a bending support within a roll for pre-bending the yoke and thus for rotating the bearings of a spreader roll can be used, in particular in spreader rolls whose roll jacket is stretched over the bearings. Furthermore, the principle could also be used for yokes of S-rolls.
  • a roller shown in Fig. 1 is a suction roll with an open volumes, in particular perforations, having, rotatable roll shell 2 is provided;
  • Such a suction roll 1 is used in paper machines, in particular in the former during sheet formation, in the press section and in the dryer section.
  • the suction roll is wrapped by an air-permeable belt, so for example a sieve or a felt or made of another material band, and a lying thereon, to be dewatered fibrous web, with one of a roll shell 1 towards open, fixed suction box 3 (Fig. 1, 2) formed in the roll interior adjacent to the wrap area.
  • the interior of the suction box 3 is connected to a vacuum source.
  • the suction box 3 adjoins the inside of the roll mantle 2 via a sealing strip 5 held by a sealing strip holder 4.
  • the rotating roll shell 2 is mounted on bearings 6 with respect to a fixed shaft 7, which in turn is received by side frames 8. 9.
  • a bending beam 10 is arranged, which is separated by at least one spacer 11 of the suction box 3.
  • additional spacers can additionally be provided at positions 11 '.
  • Vibration damper 14 is arranged to absorb vibrations.
  • a vibration damper may be constructed, for example, like the vibration damper 15 shown in FIG. 4, the vibration damper 15 having an air filling 17 above an oil layer 16. Furthermore, fins 18 are present. In the case of oscillatory motion, for example, of the roll mantle, the fins 18 are flowed through by the oil 16. The fins 18 cause this friction whereby the vibration movement is damped.
  • a bending support 21 is arranged within a suction box 20.
  • a measuring device with a laser 22 and a detector 23 detecting the laser light is provided in order to detect the bending of the bending beam 21.
  • an oil pressure cushion 24 (Fig. 6) is provided below the suction box 20 and above the bending beam 21; the oil pressure cushion 24 is sealed by means of membranes 25, 26 with respect to the suction box 20, which allow a certain mobility of the oil pressure cushion 24.
  • vibration dampers 27, 28 are provided.
  • a plurality of hydraulic or pneumatic cylinders 29 or only a single hydraulic cylinder or at least one electric screw jack or, alternatively, adjusting screws are provided to adjust the distance between the suction box 20 and the bending beam 21.
  • a hydropneumatic damping device can also be used here.
  • a measuring device 30 with a laser 31 producing laser radiation and a detector 32 for this purpose are arranged inside a tube 33.
  • the structure is the same as in FIGS. 5 to 7.
  • a Vibration damper 34 (Fig. 9, 10) may be provided between the suction box 20 and the bending beam 21 .
  • a plurality of bending beams 35 to 37 are arranged outside (below and laterally) of the suction box 20.
  • a controller Via a controller, be adapted, which is advantageous in press rolls with different pressing pressures over the web width, so that the sealing strips of the suction box 20 optimally on the roll shell for conditioning come to ensure a good sealing effect.
  • spacer elements, vibration dampers and devices for applying a force to compensate for the deflections are attachable.
  • suction rolls are also applicable to blow rolls.
  • a plurality of juxtaposed or successively arranged segments of a suction or a pressure box may be provided.
  • the bending beam can, for example, be made of metal, such as, for example, steel, or of plastic, in particular fiber-reinforced plastic.

Landscapes

  • Paper (AREA)
EP06115939A 2005-08-30 2006-06-23 Rouleau pour machine à papier Withdrawn EP1760192A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510041044 DE102005041044A1 (de) 2005-08-30 2005-08-30 Papiermaschinenwalze

Publications (1)

Publication Number Publication Date
EP1760192A1 true EP1760192A1 (fr) 2007-03-07

Family

ID=37433715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06115939A Withdrawn EP1760192A1 (fr) 2005-08-30 2006-06-23 Rouleau pour machine à papier

Country Status (2)

Country Link
EP (1) EP1760192A1 (fr)
DE (1) DE102005041044A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102995480A (zh) * 2012-11-29 2013-03-27 无锡市洪成造纸机械有限公司 一种改进的真空吸移辊真空箱体结构
CN103046421A (zh) * 2011-10-12 2013-04-17 安德里特斯公开股份有限公司 用于传输材料幅的输送吸辊

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006062284A1 (de) * 2006-12-22 2008-06-26 Andritz Küsters GmbH & Co. KG Walze mit Schwingungsdämpfer sowie Verfahren zur Dämpfung von Schwingungen einer Walze

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823593A (en) 1954-02-22 1958-02-18 Beloit Iron Works Suction roll for paper-making machines
DE19724500C1 (de) 1997-06-11 1998-10-22 Kuesters Eduard Maschf Saugpreßwalze
DE10012386A1 (de) 1999-03-30 2000-10-05 Valmet Corp Durchbiegungseinstellbare Saugwalze
DE20105600U1 (de) 2000-03-31 2001-05-31 Metso Paper, Inc., Helsinki Saugwalze

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823593A (en) 1954-02-22 1958-02-18 Beloit Iron Works Suction roll for paper-making machines
DE19724500C1 (de) 1997-06-11 1998-10-22 Kuesters Eduard Maschf Saugpreßwalze
DE10012386A1 (de) 1999-03-30 2000-10-05 Valmet Corp Durchbiegungseinstellbare Saugwalze
DE20105600U1 (de) 2000-03-31 2001-05-31 Metso Paper, Inc., Helsinki Saugwalze

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046421A (zh) * 2011-10-12 2013-04-17 安德里特斯公开股份有限公司 用于传输材料幅的输送吸辊
CN103046421B (zh) * 2011-10-12 2016-04-13 安德里特斯公开股份有限公司 用于传输材料幅的输送吸辊
CN102995480A (zh) * 2012-11-29 2013-03-27 无锡市洪成造纸机械有限公司 一种改进的真空吸移辊真空箱体结构

Also Published As

Publication number Publication date
DE102005041044A1 (de) 2007-03-01

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