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AT508405A3 - DEVICE AND METHOD FOR CONTROLLING THE TREATABILITY OF THE TREATMENT NIP OF A FIBERWORK - Google Patents

DEVICE AND METHOD FOR CONTROLLING THE TREATABILITY OF THE TREATMENT NIP OF A FIBERWORK Download PDF

Info

Publication number
AT508405A3
AT508405A3 ATA1147/2010A AT11472010A AT508405A3 AT 508405 A3 AT508405 A3 AT 508405A3 AT 11472010 A AT11472010 A AT 11472010A AT 508405 A3 AT508405 A3 AT 508405A3
Authority
AT
Austria
Prior art keywords
hydraulic
roller
nip
controlling
damping force
Prior art date
Application number
ATA1147/2010A
Other languages
German (de)
Other versions
AT508405B1 (en
AT508405A2 (en
Inventor
Jani Hakola
Original Assignee
Metso Paper Inc
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 Metso Paper Inc filed Critical Metso Paper Inc
Publication of AT508405A2 publication Critical patent/AT508405A2/en
Publication of AT508405A3 publication Critical patent/AT508405A3/en
Application granted granted Critical
Publication of AT508405B1 publication Critical patent/AT508405B1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0073—Accessories for calenders
    • D21G1/008—Vibration-preventing or -eliminating devices

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Bei einer Vorrichtung zur Steuerung der Fahrbarkeit eines Nips (N1), welchen Nip (N1) eine erste Walze (2) und ein zweites Behandlungselement der Faserbahn, welches eine Walze (3) oder ein Band ist, zwischen sich bilden, ist die erste Walze (2) über an ihren Enden sich befindlichen Achsen mit­tels der Lagergehäuse (4) auf den Rahmen (5) gestützt. Die Vorrichtung weist einen hydraulischen Stellantrieb (10), wie einen Hydraulikzylinder auf, welcher in dem Stützpunkt (4) der ersten Walze (2) in Bezug auf die Bewegungsgeschwindigkeit (x) der Schwingung des Stützpunktes (4) entgegengesetzt gerichtete hydraulische Dämpfungskraft (F) zu erzeugen vor­gesehen ist, und die Vorrichtung weist einen hydraulischen Pulsgenerator (21) und/oder eine piezobetriebene Hydraulikvorrichtung (24) auf, deren Druckseite (25) in Druckverbin­dung mit dem sich unter Druck befindlichen Zylinderteil (12,p) oder mit der Drucklinie (20*,p) des hydraulischen Stellantriebes (10) ist, um die Frequenz der äußere hydrau­lisch erzeugten Dämpfungskraft (F) zum Wirken in der in Bezug auf die Bewegungsgeschwindigkeit (x) entgegengesetzten Phase einzustellen. Es ist auch ein Verfahren zur Steuerung der Fahrbarkeit des Nips (N1) beschrieben.In a device for controlling the drivability of a nip (N1), which nip (N1) forms a first roller (2) and a second treatment element of the fibrous web, which is a roller (3) or a belt, is the first roller (2) supported on the frame (5) by means of the bearing housings (4) at their ends. The device comprises a hydraulic actuator (10), such as a hydraulic cylinder, which in the base (4) of the first roller (2) with respect to the movement speed (x) of the vibration of the support point (4) oppositely directed hydraulic damping force (F) is provided, and the device comprises a hydraulic pulse generator (21) and / or a piezobetriebene hydraulic device (24) whose pressure side (25) in pressure communication with the pressurized cylinder part (12, p) or with the pressure line ( 20 *, p) of the hydraulic actuator (10) is to set the frequency of the outer hydraulically generated damping force (F) to act in the opposite in relation to the movement speed (x) phase. A method for controlling the driveability of the nip (N1) is also described.

ATA1147/2010A 2009-07-07 2010-07-07 DEVICE AND METHOD FOR CONTROLLING THE TREATABILITY OF THE TREATMENT NIP OF A FIBERWORK AT508405B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20095766A FI121752B (en) 2009-07-07 2009-07-07 Device and method for controlling runability of the fiber web processing nip

Publications (3)

Publication Number Publication Date
AT508405A2 AT508405A2 (en) 2011-01-15
AT508405A3 true AT508405A3 (en) 2012-07-15
AT508405B1 AT508405B1 (en) 2013-03-15

Family

ID=40935847

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA1147/2010A AT508405B1 (en) 2009-07-07 2010-07-07 DEVICE AND METHOD FOR CONTROLLING THE TREATABILITY OF THE TREATMENT NIP OF A FIBERWORK

Country Status (4)

Country Link
CN (1) CN101942776B (en)
AT (1) AT508405B1 (en)
DE (1) DE102010030846A1 (en)
FI (1) FI121752B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2808445B1 (en) * 2013-05-30 2017-03-15 Valmet Technologies, Inc. Deflection compensated roll
FI127119B (en) * 2015-10-27 2017-11-30 Valmet Technologies Oy System for damping vibrations in a nip in a fiber web machine
CN108118551B (en) * 2017-11-09 2019-07-05 维美德(中国)有限公司 Wireless lifting system and method for press section of paper machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915848A1 (en) * 1998-04-09 1999-10-14 Valmet Corp Damper mechanism to absorb oscillations between paired rollers
EP1275776A1 (en) * 2001-07-12 2003-01-15 Voith Paper Patent GmbH Calender and method of arranging rolls in a calender stack
DE102008049001A1 (en) * 2007-09-28 2009-04-02 Metso Paper, Inc. Multi-roll calendar, has two topmost intermediate rolls and bottom intermediate rolls, which are moved laterally in opposite direction of rolls gap plane by rotation of connection articulated arm around articulation point

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19815339A1 (en) * 1998-04-06 1999-10-14 Voith Sulzer Papiermasch Gmbh Rolling machine and method for its operation
FI118858B (en) * 2005-09-30 2008-04-15 Metso Paper Inc Method for damping and preventing oscillations in a paper machine part
DE102007041725A1 (en) * 2007-09-04 2009-03-05 Voith Patent Gmbh Calender and calender intermediate roll

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915848A1 (en) * 1998-04-09 1999-10-14 Valmet Corp Damper mechanism to absorb oscillations between paired rollers
EP1275776A1 (en) * 2001-07-12 2003-01-15 Voith Paper Patent GmbH Calender and method of arranging rolls in a calender stack
DE102008049001A1 (en) * 2007-09-28 2009-04-02 Metso Paper, Inc. Multi-roll calendar, has two topmost intermediate rolls and bottom intermediate rolls, which are moved laterally in opposite direction of rolls gap plane by rotation of connection articulated arm around articulation point

Also Published As

Publication number Publication date
FI121752B (en) 2011-03-31
CN101942776A (en) 2011-01-12
FI20095766L (en) 2011-01-08
DE102010030846A1 (en) 2011-01-13
AT508405B1 (en) 2013-03-15
AT508405A2 (en) 2011-01-15
FI20095766A0 (en) 2009-07-07
CN101942776B (en) 2013-05-01

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Effective date: 20170707