WO2010018305A1 - Procédé d’utilisation d’une coupeuse-bobineuse - Google Patents

Procédé d’utilisation d’une coupeuse-bobineuse Download PDF

Info

Publication number
WO2010018305A1
WO2010018305A1 PCT/FI2009/050656 FI2009050656W WO2010018305A1 WO 2010018305 A1 WO2010018305 A1 WO 2010018305A1 FI 2009050656 W FI2009050656 W FI 2009050656W WO 2010018305 A1 WO2010018305 A1 WO 2010018305A1
Authority
WO
WIPO (PCT)
Prior art keywords
speed
acceleration
rotational frequency
slitting
winder
Prior art date
Application number
PCT/FI2009/050656
Other languages
English (en)
Inventor
Marko Jorkama
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 WO2010018305A1 publication Critical patent/WO2010018305A1/fr

Links

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
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • 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
    • B65H2511/14—Diameter, e.g. of roll or package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • 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

Definitions

  • the invention relates to a method of operating a slitter-winder in a running stage in which the operating speed of the slitter-winder is increased to a normal slitting speed.
  • a full-width web is unwound from a so-called machine reel which web is slit into several partial webs and the partial webs are wound into so-called customer rolls.
  • the operating process of the slitter-winder mainly comprises a so-called set change and a slitting process as successive steps.
  • the slitting process may be considered including an acceleration step after the set change, a normal slitting step and a deceleration step preceding the set change.
  • the normal-state slitting step takes the most time by far. Then, the web speed of the slitter-winder can typically be even 50 m/s.
  • specification FM 01283 (EP0839743B1 ) describes a method of minimising the effect of vibration peaks occurring when winding parallel partial web rolls on the slitter-winder in the normal-state slitting step, in which method, the run speed of the winder is controlled when the rotational frequency of the reel approaches a vibration range such that the run speed is lowered quickly so that the rotation speed of the reel is reduced to a level lower than the lower frequency of the vibration range and, after this, the run speed of the winder is increased such that the rotational frequency of the reel remains invariable until the original run speed of the winder is reached.
  • the method in the specification only addresses the normal slitting step.
  • the soft cover of carrier rolls has been observed to have an effect on the control of vibrations occurring when accelerating in carrier-roll slitter- winders.
  • a problem is that the covers are sensitive to damaging and rolls with a soft surface are difficult to repair.
  • Other methods are, inter alia, limiting the rotational frequency of customer rolls, using the stepwise increase of speed and/or using an extremely small acceleration.
  • a great disadvantage of these is a distinct decrease of capacity and they are not thus desirable methods.
  • the main object of the invention is to provide for the slitting process a method of operating the slitter-winder in a transient state, by means of which problems incurred by vibration during acceleration are avoided or at least minimised.
  • the objects of the invention are achieved according to an embodiment of the invention mainly such that, as the slitting starts, the operating speed is increased to the normal slitting speed using more than one acceleration value. This way, it is possible to simultaneously minimise the time used for acceleration and to keep the rotational frequency of customer rolls outside the so-called problematic rotational frequency corresponding each customer roll diameter.
  • the operating speed is increased to the normal slitting speed using at least two running stages employing different accelerations.
  • This can be implemented in many ways, such as by using at least two running stages employing different constant accelerations. Then, it is advantageous to employ the method such that during the first of said at least two different running stages the acceleration value is greater than during the second running stage.
  • Another alternative way is that the operating speed is increased to the normal slitting speed using a running stage employing a continuously varying acceleration. Furthermore, the operating speed can be risen to the normal slitting speed using a running stage employing a stepwisely varying acceleration.
  • the winding of customer rolls is performed by adjusting the rotational frequency of the customer rolls. Then, for the rotational frequency are set lower and upper limits, f ⁇ , f u , where the upper and lower limits of the rotational frequency are advantageously dependent on the preselected control variable/variables of the slitter-winder.
  • This is implemented advantageously such that data is collected on the vibration frequencies of customer rolls with various customer-reel diameters, and the ranges of critical vibration are formed based on the collected data as a function of the diameter of the customer rolls.
  • the rotational frequency of customer rolls is accelerated and the acceleration is altered at least once before the web speed reaches the normal web speed in the slitting step after the acceleration step.
  • the rotational frequency is accelerated with a constant acceleration and the acceleration is decreased at least once before the web speed reaches the normal web speed in the slitting step after the acceleration step.
  • the rotational frequency of customer rolls is accelerated at a specific acceleration until the rotational frequency of the customer rolls reaches an upper limit f u set for the rotational frequency of the customer rolls or reaches a value which is within a pre-determined marginal from the set upper limit f u after which the acceleration of the rotational frequency is altered.
  • Acceleration in relation to time is advantageously decreasing according to the diameter of the customer roll.
  • the upper limit f u set for the rotational frequency is dependent on the customer-reel diameter.
  • an upper limit f u (d) of the rotational frequency of the reel dependent on the customer-reel diameter is determined and, with each diameter of the customer roll, the acceleration is performed with such accelerations that the current value of the rotational frequency is 5-15% below the upper limit f u (d) of the rotational frequency of each reel.
  • the acceleration comprises at least two run ranges of constant acceleration of which in the first run range the acceleration is 0.2-1 m/s 2 and in the second run range the acceleration is ⁇ 0.2 m/s 2 .
  • upper and lower limits, ⁇ , f u are set for the rotational frequency of customer rolls, where the upper and lower limits of the rotational frequency are advantageously dependent on the customer-reel diameter.
  • the slitter-winder is operated with a method which includes
  • step 3) determining a specification speed function dependent on the reel diameter based on the collected data, 4) controlling the acceleration step of the slitter-winder to comprise at least two running stages comprising different acceleration values, 5) performing the steps 3) and 4) such that, for reaching a specific wound web quantity, a minimum time is used, and such that the rotational frequency of the customer rolls is always outside the ranges of critical vibration determined in step 2).
  • Fig. 1 shows an example according to the invention
  • Fig. 2 shows a diagram corresponding to the example of Fig. 1 , describing the run speed as a function of the reel diameter.
  • Fig. 1 shows by way of examples the effect of a method according to the invention.
  • Reference number 10 designates a first critical natural frequency of rotational frequency of customer rolls, i.e. the range of critical vibration. This is also referred to as an upper limit f u of rotational frequency in this specification.
  • Reference number 20 designates a second critical natural frequency of rotational frequency of customer rolls, i.e. the range of critical vibration. This is also referred to as a lower limit ⁇ of rotational frequency in this specification.
  • Reference number 30 shows a second multiple of rotational frequency of customer rolls with the method according to the invention.
  • the acceleration of 0.4 m/s 2 was used for about 40 s and, after this, it was changed to the acceleration of 0.08 m/s 2 .
  • the change of acceleration is visible as points of discontinuity 30', 30" of the slope of the curve 30.
  • the second critical natural frequency 20 of the rotational frequency of the customer rolls at a point 40 the exceeding is so quick and the masses of the reels so small that the effect of vibration is not considerable.
  • the rotational frequency stays between these two natural frequencies, whereby disadvantageous reel vibration is avoided and the production time is simultaneously minimised.
  • the method can also be applied such that, when operating the slitter-winder, data is collected on the vibration frequencies of customer rolls with various customer-reel diameters, and the ranges of critical vibration are formed based on the collected data as a function of the diameter of the customer rolls. Based on the collected data, a specification speed function dependent on the reel diameter is determined, and the acceleration step of the slitter-winder is controlled to comprise at least two running stages comprising different acceleration values.
  • the specification speed function is determined and the acceleration step of the slitter-winder is controlled such that, for reaching a specific wound web quantity, a minimum time is used with the usable capacity, and such that the rotational frequency of the customer rolls is always outside, advantageously between, the ranges 10, 20 of critical vibration pre-determined at the point.
  • the acceleration step of the slitter-winder is controlled to take place closer to the first critical natural frequency of the rotational frequency of customer rolls than the second critical natural frequency of the rotational frequency of customer rolls.
  • Fig. 2 shows a diagram corresponding to the example of Fig. 1 , describing the run speed as a function of reel diameter.
  • the acceleration step i.e. the rise of operating speed 60 is implemented by using two different acceleration values 61 , 62 during which the speed linearly increases reaching the normal speed 50 after a specific time.
  • Figs. 1 and 2 show with dashed lines 100, 101 the rotational frequency and run speed in a situation in which the acceleration is totally implemented with a constant acceleration.
  • Fig. 2 shows as dashed the reached intensifying of production during acceleration with the method according to the invention.

Landscapes

  • Winding Of Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Abstract

La présente invention concerne un procédé d’utilisation d’une coupeuse-bobineuse dans un stade de fonctionnement dans lequel la vitesse de fonctionnement de la coupeuse-bobineuse est augmentée jusqu’à une vitesse normale de coupe (50). Dans le procédé, la vitesse de fonctionnement est augmentée jusqu’à la vitesse normale de coupe à l’aide de plusieurs valeurs d’accélération.
PCT/FI2009/050656 2008-08-14 2009-08-12 Procédé d’utilisation d’une coupeuse-bobineuse WO2010018305A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20085772A FI20085772L (fi) 2008-08-14 2008-08-14 Menetelmä pituusleikkurin käyttämiseksi
FI20085772 2008-08-14

Publications (1)

Publication Number Publication Date
WO2010018305A1 true WO2010018305A1 (fr) 2010-02-18

Family

ID=39735639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2009/050656 WO2010018305A1 (fr) 2008-08-14 2009-08-12 Procédé d’utilisation d’une coupeuse-bobineuse

Country Status (2)

Country Link
FI (1) FI20085772L (fr)
WO (1) WO2010018305A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749513A1 (fr) 2012-12-27 2014-07-02 Valmet Technologies, Inc. Procédé d'exploitation d'une bobineuse pour enrouler des bandes de fibres
US20160221787A1 (en) * 2015-02-02 2016-08-04 Ricoh Company, Limited Sheet processing device, image forming system, and computer-readable storage medium
ITUA20163342A1 (it) * 2016-05-11 2017-11-11 Celli Nonwovens Spa Macchina di avvolgimento di bobine di materiale nastriforme e metodo
EP3643654A1 (fr) 2018-10-24 2020-04-29 Valmet Technologies Oy Procédé de fonctionnement d'un dispositif de finition autonome pour voiles de fibres, en particulier une bobineuse-refendeuse hors ligne pour l'enroulement de bandes de fibres
DE102021121803A1 (de) 2020-08-25 2022-03-03 Valmet Technologies Oy Kernverriegelungssystem

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB259632A (en) * 1925-05-06 1926-10-06 Automatic Paper Machinery Comp Improvements in web winding machines
GB626034A (en) * 1939-07-03 1949-07-07 Oilgear Co Improvements in web-winding devices
DE2235442A1 (de) * 1972-07-20 1974-01-31 Jagenberg Werke Ag Verfahren und vorrichtung zum aufwickeln einer vorbestimmten laenge eines wickelgutes
JPH01321245A (ja) * 1988-06-22 1989-12-27 Toshiba Corp リワインダ制御装置
US5178341A (en) * 1990-07-13 1993-01-12 Graphic Packaging Corporation Winder speed control apparatus
EP0594850A1 (fr) * 1992-04-15 1994-05-04 Yugen Kaisha Kaji Seisakusho Procede permettant de produire un rouleau de papier hygienique depourvu de noyau et rouleau de papier hygienique depourvu de noyau ainsi produit
US6629663B1 (en) * 2001-01-10 2003-10-07 Valmet Corporation Wound roll vibration detection system
EP1790600A2 (fr) * 2005-11-29 2007-05-30 Voith Patent GmbH Enrouleuse
WO2008096034A1 (fr) * 2007-02-05 2008-08-14 Abb Oy Procédé de commande pour entraînement électrique

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB259632A (en) * 1925-05-06 1926-10-06 Automatic Paper Machinery Comp Improvements in web winding machines
GB626034A (en) * 1939-07-03 1949-07-07 Oilgear Co Improvements in web-winding devices
DE2235442A1 (de) * 1972-07-20 1974-01-31 Jagenberg Werke Ag Verfahren und vorrichtung zum aufwickeln einer vorbestimmten laenge eines wickelgutes
JPH01321245A (ja) * 1988-06-22 1989-12-27 Toshiba Corp リワインダ制御装置
US5178341A (en) * 1990-07-13 1993-01-12 Graphic Packaging Corporation Winder speed control apparatus
EP0594850A1 (fr) * 1992-04-15 1994-05-04 Yugen Kaisha Kaji Seisakusho Procede permettant de produire un rouleau de papier hygienique depourvu de noyau et rouleau de papier hygienique depourvu de noyau ainsi produit
US6629663B1 (en) * 2001-01-10 2003-10-07 Valmet Corporation Wound roll vibration detection system
EP1790600A2 (fr) * 2005-11-29 2007-05-30 Voith Patent GmbH Enrouleuse
WO2008096034A1 (fr) * 2007-02-05 2008-08-14 Abb Oy Procédé de commande pour entraînement électrique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749513A1 (fr) 2012-12-27 2014-07-02 Valmet Technologies, Inc. Procédé d'exploitation d'une bobineuse pour enrouler des bandes de fibres
US20160221787A1 (en) * 2015-02-02 2016-08-04 Ricoh Company, Limited Sheet processing device, image forming system, and computer-readable storage medium
US9624061B2 (en) * 2015-02-02 2017-04-18 Ricoh Company, Limited Sheet processing device, image forming system, and computer-readable storage medium
ITUA20163342A1 (it) * 2016-05-11 2017-11-11 Celli Nonwovens Spa Macchina di avvolgimento di bobine di materiale nastriforme e metodo
EP3246278A1 (fr) * 2016-05-11 2017-11-22 A.Celli Nonwovens S.P.A. Machine et procédé d'enroulement de bobines de matériau en bande
US10364120B2 (en) 2016-05-11 2019-07-30 A.Celli Nonwovens S.P.A. Winding machine for spools of web material and method
EP3643654A1 (fr) 2018-10-24 2020-04-29 Valmet Technologies Oy Procédé de fonctionnement d'un dispositif de finition autonome pour voiles de fibres, en particulier une bobineuse-refendeuse hors ligne pour l'enroulement de bandes de fibres
US11142422B2 (en) 2018-10-24 2021-10-12 Valmet Technologies Oy Method of operating an off-line finishing device for fiber webs, in particular an off-line slitter-winder for winding fiber webs
DE102021121803A1 (de) 2020-08-25 2022-03-03 Valmet Technologies Oy Kernverriegelungssystem

Also Published As

Publication number Publication date
FI20085772A0 (fi) 2008-08-14
FI20085772L (fi) 2010-02-15

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