EP2813451A1 - Enrouleur à deux tambours - Google Patents

Enrouleur à deux tambours Download PDF

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Publication number
EP2813451A1
EP2813451A1 EP13171374.5A EP13171374A EP2813451A1 EP 2813451 A1 EP2813451 A1 EP 2813451A1 EP 13171374 A EP13171374 A EP 13171374A EP 2813451 A1 EP2813451 A1 EP 2813451A1
Authority
EP
European Patent Office
Prior art keywords
roll
rider roll
winder
drum winder
torsional vibration
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
EP13171374.5A
Other languages
German (de)
English (en)
Other versions
EP2813451B1 (fr
Inventor
Marko Jorkama
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.)
Valmet Technologies Oy
Original Assignee
Valmet Technologies Oy
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 Valmet Technologies Oy filed Critical Valmet Technologies Oy
Priority to EP13171374.5A priority Critical patent/EP2813451B1/fr
Publication of EP2813451A1 publication Critical patent/EP2813451A1/fr
Application granted granted Critical
Publication of EP2813451B1 publication Critical patent/EP2813451B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/50—Vibrations; Oscillations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/524—Vibration
    • B65H2601/5242—Vibration by using mass damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/84—Paper-making machines

Definitions

  • the present invention relates to a two-drum winder for winding partial websaccording to the preamble of claim 1 for reducing machine directional vibrations in a partial web winder of a fibrous web.
  • the machine roll is un-wound and the wide web is slit with the slitting part of the slitter-winder into a number of narrower partial webs that are rewound with a partial web winder to form customer rolls.
  • the slitter-winder is stopped and the partial web rolls are removed from the machine, i.e. the set change is done. Subsequent to this the process is continued as winding of a new set of rolls.
  • the partial web winder can be a two-drum winder in which the partial web rolls are wound carried by winding drums, typically supported by a rider roll from above.
  • FI101283 discloses a method in which the running speed of the winder is controlled based on the rotation frequency of the roll so that as the rotation frequency of the roll approaches the vicinity of the vibration range, i.e. the roll rotation frequency range where there is a strong vibration, the running speed is quickly lowered so that the rotation speed of the roll decreases to below the lower frequency of the vibration range and subsequent to this the running speed is increased so that the rotation frequency of the roll remains constant until the original running speed of the winder is reached. Due to the change of the running speed this has an effect on the total capacity of the winder.
  • the rider roll is moved to compensate the growth of the diameter of the rolls.
  • the rider roll arrangement is movably supported by the body structure of the winding part.
  • the consecutive longitudinal rolls are locked in their places as a line of rolls by means of a core locking device arranged at both ends.
  • the support means contacting the roll (or rolls) to be wound are exposed to the dynamic load caused by the rotating roll.
  • vibration especially in the rider roll and the supporting rider roll beam, excited by the partial web rolls to be wound.
  • the diameter of the roll to be wound has an effect on the vibration of the rider roll.
  • the vibration conditions change as the winding proceeds.
  • the design aim of the rider roll of a slitter-winder is a stable construction able to withstand dynamic load.
  • a generally used practical solution is one in which rider roll segments are suspended from a relatively rigid rider roll beam.
  • the rider roll beam is moved along two or more guides attached to the body.
  • the guides are located near the ends of the beam.
  • a particular form of vibration occurring in a two-drum winder is machine directional concurrent vibration of the rolls in the set.
  • the whole set or single rolls can start to oscillate typically on a relatively low frequency (about 5 - 15 Hz) in the machine direction on top of the winding drums.
  • the phenomenon can limit the maximum speed usable in winding, thus decreasing capacity. In the worst case, the phenomenon can cause the off-throwing of the set.
  • the forming of partial web rolls can be achieved more advantageous if the rider roll is provided with a drive. Then, it is possible to apply moment/force, i.e. pull, to the surface of the web roll with the rider roll.
  • Publication EP2108606 A2 describes a two-drum winder in which the rider roll unit comprises a drive. More particularly there is disclosed a two-drum winder which comprises at least two surface support elements of the roll arranged to support at least one roll being formed substantially below it and at least one loading device which is arranged to support said roll at least for part of the forming time of the roll substantially above it.
  • the winder comprises also at least one drive so that the drive is arranged to apply tangential force to the roll being wound and a control arrangement which is arranged to control said at least one drive of the two-drum winder so that the drive provides the roll being wound with an effect diminishing the machine directional concurrent vibration of parallel rolls, which in this case is machine directional concurrent vibration of the rolls in the current set.
  • the drive In order to operate in acceptable manner the drive must be of considerable power and the system requires somewhat sophisticated controlling system..
  • Object of the invention is to provide such a two-drum winder by means of which the machine directional concurrent vibration of the rolls is at least minimized in a straightforward manner.
  • the objects of the invention are mainly achieved with a two-drum winder for winding partial webs according to claim 1.
  • a two-drum winder refers to a web winder in which at least one roll being formed is supported below the roll with at least two surface support devices of the winder, such as a roll or a set of belts supported by rolls.
  • the cross direction refers to the direction of the longitudinal axis of the surface support device, such as the roll, and the machine direction the direction perpendicular in relation to the cross direction and the vertical direction.
  • a set refers to a set of partial web rolls being wound simultaneously on the winder.
  • a roll refers to one or more rolls. Above and below refer to the upper side and under side of a horizontal plane passing via the centre of the roll.
  • Belt means a belt, chain or any other endless power transmission loop.
  • flexible means flexibly in practical sense with an intention of having flexibility and/or flexible element does influence on the dynamics of the rotation of the system.
  • atwo-drum winder for winding partial webs for a fibrous web comprising at least two surface support elements to support a web rollfrom below and a rider roll which is arranged to support said web roll at least for part of the forming time of the web roll above it.
  • the rider roll is provided with a tuned torsional vibration absorber arranged to attenuate rotational vibration of the rider roll such that the machine directional concurrent vibration of the web roll is attenuated via tangential force interaction between the rider roll and the web roll.
  • the tuned torsional vibration absorberbegins to also resonate at the same frequency and will absorb, or at least damp, the machine directional resonant vibrations of the web rolls.
  • the tuned torsional vibration absorber comprises mass element which is coupled by a coupling device to the rider roll to rotate along with the rider roll.
  • the coupling device comprises a section which is flexible to a predetermined extent.
  • the coupling device is provided means for changing its flexibility. Changing may be realized so that the torsional vibration absorber may be even turned off and on by changing the flexibility.
  • the coupling device comprises a torsion bar.
  • the torsion bar is provided means for changing its flexibility. Changing may be realized so that the torsional vibration absorber may be even turned off and on by changing the flexibility.
  • the rider roll is supported by a beam extending over the length of the rider roll and comprises end walls at the opposite end thereof and the tuned torsional vibration absorber is rotatably supported to the end walls.
  • the tuned torsional vibration absorber is rotatably supported inside the beam. This way the tuned torsional vibration absorber is safely covered by the beam and does not require any extra space.
  • coupling device comprises belt drive coupling having a first belt wheel connected to the rider roll and a second belt wheel connected to the mass element and a belt connecting the first and the second belt wheels.
  • the belt is a flexible belt.
  • the tuned torsional vibration absorber is arranged adjustable during operation of the two-drum winder.
  • coupling device comprises belt drive having a variably controllable transmission, by means of which the transmission ratio may be altered during the use of the invention.
  • the tuned torsional vibration absorber is in power transmission connection with an actuator and that the winder comprises a control arrangement arranged to control the operation of the actuator in response to acquired torsional vibration of the mass element such that the motor actuator synchronized with the mass element increasing the effect of the mass element.
  • tuned torsional vibration absorber comprises a centrifugal pendulum absorber coupled by a coupling device to the rider roll to rotate along with the rider roll.
  • Fig. 1 shows a two-drum winder 10 according to an embodiment of the invention.
  • the two-drum winder comprises a front winding drum 15 and a rear winding drum 20as support rolls.
  • the winding drums supportfrom below a set ofweb rolls 25 being wound of partial webs W in the winder in a manner known as such.
  • To support the roll 25 from the abovethere is also arranged a rider roll 30.
  • the rider roll 30 is supported on a rider-roll beam 35.
  • the rider roll may be a single roll extending from the first (front) side of the winder to the second (back) side thereof or it may be constructed of several interconnected roll segments.
  • the interconnection means that the roll segments are rotatable connected with each other.
  • the winding drums 15, 20 of the two-drum winder 10 are provided with drives 15.1, 20.1 by means of which surface draw i.e. tangential force can be applied to the roll being formed.
  • the rider roll 30 may also be provided with a drive, even if not shown here.
  • Fig. 1 schematically shows the machine directional concurrent vibration of parallel rolls which can be at least considerably minimised or even eliminated with the two-drum winder.
  • the whole set reference 25' in Fig. 2 moves back and forth in the machine direction from its stable position mainly by rotating alternately on the surface of the front and rear drum 15, 20 as is shown in exaggerated manner in Fig. 1 .
  • Individual back and forth motion of single rolls can be minimized by combining successive rolls 25 of the set 25' from their winding centers to each other e.g. by a sleeve 45 which sufficiently locks the centers to each other radially. This can be seen in Fig. 2 , which shows section of the two-drum winder of Fig. 1 from direction A.
  • the rider roll 30 is provided with a tuned torsional vibration absorber 40, which is tuned to a predetermined oscillation frequency of the web roll 25.
  • a tuned torsional vibration absorber 40 which is tuned to a predetermined oscillation frequency of the web roll 25. This way, the in case the machine directional concurrent vibration of the web roll 25 tends totake place, the excitation of the vibration is transmitted into rotational oscillation of the rider roll 30.
  • the rotational oscillation of the rider roll 30 is reduced and thus the machine directional concurrent vibration of the web roll 25 is minimized accordingly.
  • the tuned torsional vibration absorber is tuned to a frequency at or near which web roll vibration is to be attenuated.
  • the machine directional concurrent vibration of parallel rolls affecting the whole set 25' can be minimised when the two-drum winder 10 comprises a tuned torsional vibration absorber 40 arranged to the rider roll 30.
  • the tuned torsional vibration absorber 40 comprises a mass element 42 of suitable form.
  • the mass element is coupled to the rider roll 30 by a coupling device 44 at its rotational axis so that the mass element may rotate along with the rider roll.
  • the coupling device is, or comprises, a section which is flexible to a predetermined extent.
  • the coupling device may comprise a section which is attenuating to a predetermined extent.
  • the coupling device is a torsion bar the flexibility of the bar is selected suitably taken into account the mass and the desired frequency to be attenuated.
  • the mass element is coupled to an end of the roll 30 at the centre axis thereof.
  • the rotational stiffness of the bar is selected preferably so that the lowest rotational natural frequency of the bar - mass element system is substantially equal to the frequency to be attenuated.
  • the rider roll and the beam according to an embodiment of the invention in which the tuned torsional vibration absorber 40 is arranged above the beam 35 of the winder.
  • the tuned torsional vibration absorber 40 being located at a distance from the rider roll needs a coupling device which facilitates the power transmission between the roll and the mass element 43.
  • the coupling device comprises a belt drive coupling 50 having a first belt wheel 51 connected to the rider roll 30 and a second belt wheel 52 connected to the mass element 42 and a belt 53 connecting the first and the second belt wheels.
  • the belt may be flexible to a predetermined extent so that the tuned torsional vibration absorber may be tuned in appropriate manner.
  • the coupling device 50 comprises a belt drive coupling 50.
  • the belt drive coupling comprising a first belt wheel 51 connected to the rider roll 30 and a second belt wheel 52 connected to the mass element 42 and a belt 53 connecting the first and the second belt wheels.
  • the belt may be flexible to a predetermined extent so that the tuned torsional vibration absorber may be tuned in appropriate manner.
  • the mass element 42 is supported to an end walls 35' of the beam 35.
  • the coupling device 44 comprises a belt drive coupling 50.
  • the belt drive coupling comprises a first belt wheel 51 connected to the rider roll 30.
  • the first belt wheel is nonadjustable i.e. its diameter is fixed.
  • the second belt wheel 52 connected to drive the mass element 42 is adjustable such that its effective diameter may be changed during the operation and thus the transmission ratio of the belt drive coupling may be changed.
  • the second wheel may comprise means for changing the distance between the opposing inner surfaces of the wheel which, given that the belt has fixed width, changes the radial contact distance of the belt.
  • a belt 53 is connecting the first and the second belt wheels.
  • the belt may be flexible to a predetermined extent so that the tuned torsional vibration absorber may be tuned in appropriate manner.
  • the mass element 42 is supported to an end walls 35' of the beam 35
  • the coupling device 44 comprises a belt drive coupling 50.
  • the belt drive coupling comprises a first belt wheel 51 connected to the rider roll 30 and a second belt wheel 52 connected to the mass element 42 and a belt 53 which is connecting the first and the second belt wheels.
  • the coupling further comprises an actuator 55 which is connected in rotational force transmission manner to the mass element 42.
  • the control arrangement 100 is arranged to adjust the moment of the actuator 55 so that with mass element is applied an effect diminishing the machine directional concurrent vibration of parallel rolls to the web rolls of the set.
  • the arrangement provides a combined effect of a tuned torsional vibration absorber 42 and quick acting actuator 55 via the rider roll to the the machine directional concurrent vibration of the web roll 25.
  • Fig. 6 shows an arrangement 102in connection with mass element 42for detecting and monitoring the torsional vibration of the mass element 42. This monitored data is sent to the control arrangement 100. If the web rolls 25 start machine directional vibration, that is transmitted to the rider roll and also the mass element 42 starts rotational vibration.
  • the control arrangement is arranged to detect the rotational vibration of the mass and to determine a control signal to the actuator 55 such that the operation of the actuator 55 based on the control signal enhances to effect of the mass element 42.
  • centrifugal pendulum absorber 57 in connection with the rider roll and or the mass element.
  • the centrifugal pendulum absorber is basically a pendulum attached to the rotatable mass element to absorb various torsional vibration modes of the rider roll caused by the machine directional vibration of the roll in the set.
  • the pendulum or pendulums attached to the rider roll or to the tuned torsional vibration absorber are configured so that their natural frequency is equal to a resonant frequency of a vibration mode of the web rolls.
  • the attached, or coupled, pendulums begin to also resonate at the same frequency and will absorb, or at least damp, the machine directional resonant vibrations of the web roll.
  • the pendulums 59 are arranged inside the mass element 42.
  • the graph 70 depicts the case without the tuned torsional vibration absorber
  • the graph 72 depicts the case where the rider roll of the winder is provided with a tuned torsional vibration absorber being tuned at 11.5 Hz and having a mass moment of inertia 0.5 kgm/s2 and damping ratio 7.8 %
  • the graph 74 depicts the case where the rider roll of the winder is provided with a tuned torsional vibration absorber being tuned at 11.5 Hz and having a mass moment of inertia 7.5 kg/m2 and damping ratio 7.8 %
  • the graph 76 depicts the case where the rider roll of the winder is provided with a tuned torsional vibration absorber being tuned at 11.5 Hz and having a mass moment of inertia 7.5 kg/m2 and damping ratio 15.6 %.
  • the characteristics of the winder were: width of the set 7 m, diameter of the web rolls 900 mm, the mass eccentricity of the web rolls 0.01 mm, diameter of the winding drums 800 mm, diameter of the rider rolls 200 mm. From the figure it can be seen that the height of the resonance spike is reduced by more than 50 % when the whole frequency range is considered and more than a decade at the tuning frequency 11.5 Hz. Increasing the mass moment of inertia of the absorber moves the absorber induced resonance spikes further apart from the tuning frequency and increase of the absorber damping reduces the spike height.

Landscapes

  • Winding Of Webs (AREA)
  • Vibration Prevention Devices (AREA)
EP13171374.5A 2013-06-11 2013-06-11 Enrouleur à deux tambours Active EP2813451B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13171374.5A EP2813451B1 (fr) 2013-06-11 2013-06-11 Enrouleur à deux tambours

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13171374.5A EP2813451B1 (fr) 2013-06-11 2013-06-11 Enrouleur à deux tambours

Publications (2)

Publication Number Publication Date
EP2813451A1 true EP2813451A1 (fr) 2014-12-17
EP2813451B1 EP2813451B1 (fr) 2017-03-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108382673A (zh) * 2018-03-09 2018-08-10 芜湖影星巨幕有限公司 一种银幕包装的卷筒设备及包装方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU182180U1 (ru) * 2017-12-20 2018-08-06 Федеральное государственное бюджетное образовательное учреждение высшего образования "Пензенский государственный технологический университет" Устройство для намотки материала в рулон

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047676A (en) * 1974-12-17 1977-09-13 Beloit Corporation Winder vibration dampener
US4180216A (en) 1978-04-12 1979-12-25 Beloit Corporation Winder with horizontal rider roll adjustment
EP0819638A2 (fr) * 1996-07-19 1998-01-21 Voith Sulzer Papiermaschinen GmbH Procédé et dispositif pour enrouler une bande de papier en un rouleau avec amortisseur actif de vibrations
EP1900664A2 (fr) * 2006-09-18 2008-03-19 Voith Patent GmbH Bobineuse
EP2108606A2 (fr) 2008-04-10 2009-10-14 Metso Paper, Inc. Enrouleur de rouleau support et procédé pour son utilisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047676A (en) * 1974-12-17 1977-09-13 Beloit Corporation Winder vibration dampener
US4180216A (en) 1978-04-12 1979-12-25 Beloit Corporation Winder with horizontal rider roll adjustment
EP0819638A2 (fr) * 1996-07-19 1998-01-21 Voith Sulzer Papiermaschinen GmbH Procédé et dispositif pour enrouler une bande de papier en un rouleau avec amortisseur actif de vibrations
EP1900664A2 (fr) * 2006-09-18 2008-03-19 Voith Patent GmbH Bobineuse
EP2108606A2 (fr) 2008-04-10 2009-10-14 Metso Paper, Inc. Enrouleur de rouleau support et procédé pour son utilisation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108382673A (zh) * 2018-03-09 2018-08-10 芜湖影星巨幕有限公司 一种银幕包装的卷筒设备及包装方法

Also Published As

Publication number Publication date
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