EP2471730A2 - Procédé d'enroulement d'une bande de papier ou de carton et dispositif d'enroulement de cylindres à support double destiné à enrouler une bande de papier ou de carton - Google Patents

Procédé d'enroulement d'une bande de papier ou de carton et dispositif d'enroulement de cylindres à support double destiné à enrouler une bande de papier ou de carton Download PDF

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Publication number
EP2471730A2
EP2471730A2 EP11189073A EP11189073A EP2471730A2 EP 2471730 A2 EP2471730 A2 EP 2471730A2 EP 11189073 A EP11189073 A EP 11189073A EP 11189073 A EP11189073 A EP 11189073A EP 2471730 A2 EP2471730 A2 EP 2471730A2
Authority
EP
European Patent Office
Prior art keywords
winding
guide heads
drive
paper
bed
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Withdrawn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
EP11189073A
Other languages
German (de)
English (en)
Other versions
EP2471730A3 (fr
Inventor
Manfred Mager
Alexander Klupp
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 EP2471730A2 publication Critical patent/EP2471730A2/fr
Publication of EP2471730A3 publication Critical patent/EP2471730A3/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
    • B65H2301/414866—Winding slitting winding on two or more winding shafts simultaneously on bed rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/52—Bearings, e.g. magnetic or hydrostatic bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/60—Damping means, shock absorbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/13—Means using fluid made only for exhausting gaseous medium pressure arrangement for compensating weight of handled material
    • 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 for winding a paper or board web in a Doppeltragwalzenwickelvorraum having at least two support rollers, between which a winding bed is formed, wherein the paper or board web is wound on one or more winding tubes to winding rollers axially mounted on guide heads are.
  • the invention relates to a Doppeltragwalzenwickelvorraum for winding a paper or board web onto one or more cores for forming winding rolls according to such a method, wherein the Doppeltragwalzenwickelvorraum has at least two support rollers forming a winding bed, wherein the winding tubes are mounted axially in guide heads, the in a first direction, which is substantially parallel to the winding bed and perpendicular to the axial direction, and in a second direction, which is substantially perpendicular to the winding bed and to the axial direction, are movably guided.
  • the paper or board web is usually wound on a spool in full web width. At web widths of up to 10 m, such a tambour is difficult to handle. For transport, the paper or board web is therefore wound on several strategicallyt- or finished rolls, which have a smaller width.
  • the material web is first unwound from the drum and passed through a slitter, the paper or board web cut to the desired widths and bobbins is wound up.
  • cores are usually used, which consist for example of cardboard.
  • These cores lie in a winding bed formed by at least two support rollers of a Doppeltragwalzenwickelvorraum.
  • a support roller can consist of a single roller, but for example, represent a combination of two rollers, between which a circumferential jacket is stretched.
  • a plurality of winding mandrels are arranged one behind the other in the winding bed in the axial direction.
  • the cores are held axially via guide heads in the winding bed.
  • the invention is based on the object to improve the achievable winding quality.
  • this object is achieved by a method of the type mentioned above in that the guide heads are actively moved during the winding process in a substantially parallel to the winding bed and perpendicular to an axially extending first direction.
  • Essentially in this context means that there is no strict mathematical parallelism or strict right angle but only a general direction should be defined.
  • “In the axial direction” means axially with respect to the winding roll or parallel to a rotation axis of the winding rolls or cores.
  • the guide heads in the first direction are not moved solely by the increase of the diameter of the winding rolls, but actively, so that a position of the axis of rotation of the winding tubes or the winding center is actively set in the first direction.
  • the cores are therefore always centered in the first direction with respect to the support rollers of the Doppeltragwalzenwickelvorraum, so that a uniform winding can take place.
  • the guide heads or a rotation axis of the winding rollers can not therefore be removed from the theoretical winding center. As a result, runouts of the winding roll, eccentricities and unevenness between the winding layers are avoided. As a result, vibrations are largely prevented and, if the performance is not completely prevented, vibration damping takes place. Overall, an improvement in the winding quality is achieved.
  • the guide heads are actively moved in a second direction substantially perpendicular to the first direction and to the axial direction. While the first direction is usually horizontal, then the second direction is substantially vertical.
  • the guide heads and thus the cores can be actively guided on a predetermined path curve. Free movement of the winding rollers in the first and second directions is prevented.
  • forces which occur, for example, in the case of vibrations can be absorbed in the first and second directions. It can be defined by the defined position the guide heads or cores achieve a more uniform winding, whereby the winding quality is improved.
  • a path curve of the guide heads is set in a plane spanned by the first direction and the second direction in dependence on the current winding roll diameter.
  • the current winding roll diameter can be detected, for example, via sensors or via the position of the pressure or load roller device, the theoretical position of the rotation axis being calculated therefrom in a control device and predefined as the desired value.
  • the bobbins are thus always guided so that a position of the axis of rotation corresponds to a theoretical winding center. Deviations that would lead to a deterioration of the winding quality and the increased occurrence of vibrations are prevented by the active movement control of the guide heads in the first direction and second direction.
  • At least one stiffness value in at least one direction in which the guide heads are moved is preferably at least indirectly depending on at least one paper or board web, or a Wickelrollenparameters set.
  • a stiffness value is understood to mean influencing a stiffness, which depends of course on the Doppeltragwalzenwickelvorraum to be interpreted, in particular their working width and the paper or board web surface weights to be wound on it and the winding speeds and Wickelend matmessern to be achieved.
  • the static and / or the dynamic bending stiffness is influenced.
  • a position of the guide heads in the axial direction is set as a function of a number and size of the cores. This makes it possible to wind bobbins of different widths and in different numbers. By adjusting the position of the guide heads in the axial direction, the Doppeltragwalzenwickelvorraum can be adjusted accordingly.
  • the guide heads are centered before the beginning of the winding process on the axis of rotation of the winding tubes lying in the winding bed.
  • the axis of rotation of the cores corresponds to a radial center of the cores. It is done so to speak, a zero calibration, without the need for mechanical adjustment.
  • the winding tubes are then actively guided during the winding process in dependence on the diameter of the winding rolls in the first direction and in the second direction. This prevents that the guide heads eccentric position with respect to the cores, which would have a negative impact on the winding process. A mechanical centering device is then not necessary.
  • the guide heads are passive or actively damped in the first direction and / or in the second direction.
  • a passive damping can be done for example by a friction damping or by one or more damping elements.
  • An active damping is preferably carried out by a corresponding highly dynamic drive, which is necessary anyway for a movement of the guide heads. With an active damping of course, a detection of the vibrations, for example by a vibration sensor, required. This can be placed for example on the guide heads.
  • the object is achieved by a Doppeltragwalzenwickelvorraum of the aforementioned type in that the Doppeltragwalzenwickelvorraum has a first drive which is designed such that the guide heads are actively positioned during the winding process in the first direction.
  • a first drive can be provided per guide head.
  • the first drive is a position of the guide heads or a rotation axis of the winding rollers in The first direction is actively set, the winding rollers are thus forcibly guided in the first direction.
  • a free movement of the winding rollers in the first direction is never possible. Rather, it ensures that a position of the axis of rotation of the winding rolls always corresponds to a theoretical winding center. Due to the forced operation vibrations are suppressed. At the same time results in a uniform winding process. Overall, the winding quality is improved.
  • the Doppeltragwalzenwickelvorraum has a second drive, which is designed such that the guide heads are actively positioned during the winding process in the second direction.
  • a second drive may be provided for each guide head, even if in the following always only a second drive is mentioned.
  • the guide heads can then be actively positioned not only by the first drive in the first direction, but also by the second drive in the second direction.
  • the guide heads can thus lead the winding tubes or winding rollers in a plane on a path curve, which corresponds to the movement of the theoretical winding center. It is possible, using the second drive a felicitsent- or load of the bobbins perform in particular on the marginal bobbins and so to influence the winding hardness.
  • the configuredsent- or load may preferably be in the range of the force exerted by the load roller unit line load. This makes it possible to further improve the winding quality. Among other things, this can also achieve a homogenization of the winding roll diameter with each other, which is a particularly valuable embodiment with regard to an exact guide in the theoretical center of all bobbins of a winding roll set.
  • the Doppeltragwalzenwickelvorraum has a control device which controls the first drive and the second drive in response to the current winding roller diameter such that an axis of rotation of the winding rollers is located in the theoretical winding center.
  • the current winding roll diameter can be determined, for example, by means of a corresponding sensor device.
  • the guide heads are always positioned as a function of the current winding roll diameter. Thus, as it were, a regulation of the position of the axis of rotation takes place. Vibrations that would lead to a shift of the axis of rotation are thereby absorbed and suppressed. An erroneous winding, in which the axis of rotation of the winding rolls outside the theoretical winding center is prevented. This ensures a high winding quality.
  • At least one stiffness value is adjustable in at least one direction in which the guide heads are movable. This makes it possible to guide the bobbins as rigid as possible without the bearings on the guide heads so stiff that during the winding process possibly occurring stress peaks to intolerable Wickel Computingn, such as places and web breaks within the winding roll or within the incoming paper or Cardboard web occur. Although it may possibly be allowed to recur locally in narrow dimensions, but these can be kept in reasonable sizes.
  • At least one of the at least one stiffness value is adjustable during the winding process.
  • the stiffness value can meet the different requirements during a winding process particularly well.
  • a rapid Findfindigmachen a suitable stiffness value achievable.
  • Such a selected stiffness value or stiffness value range is then well suited for subsequent winding processes.
  • the guide heads are axially adjustable. This allows the Doppeltragwalzenwickelvorraum be adapted to a different number and size of the cores. It can be produced so winding rolls of different widths. The Doppeltragwalzenwickelvorraum is thus used variably.
  • the guide heads are each arranged on a carriage which is in particular linearly movable in a first direction and in a second direction.
  • This is a relatively easy way to arrange the guide heads movable in the first direction and the second direction, but to lock the remaining degrees of freedom.
  • a linear movement is also conceivable to guide the guide head in one of the directions on a circular path, for example by means of a pivot lever to a circular arc segment with a relatively large diameter. You can set any desired flat path curve.
  • the first drive and / or the second drive is designed as a hydraulic or as an electric actuator.
  • a hydraulic control element can be relatively easily generate large forces, so that a secure positioning of the guide heads or the cores is possible. In this case, it is relatively easy to realize a passive damping in hydraulic actuators.
  • An electric actuator however, has the advantage that pollution by possibly leaking liquid, as with the hydraulic actuator, is not to be feared.
  • electrical control elements can generate relatively large forces and at the same time be made relatively small. In this case, electrical control elements can be controlled or positioned particularly accurately. With an electric drive a rigid forced positioning is particularly reliable realized.
  • the first drive and / or the second drive is designed as a highly dynamic, in particular electric drive, which is controlled such that an active vibration damping takes place.
  • a very effective damping of the vibrations can be achieved, whereby the winding quality can be further increased.
  • dynamic forces are thus deliberately introduced into the winding sleeves in order to positively influence the winding process.
  • At least one damping element is arranged between the respective drive and the carriage.
  • a damping element may be formed for example as a rubber element.
  • force peaks that are exerted on the guide heads for example by vibrations of the winding tubes or the winding rollers and thus act on the drives, can be reduced. A dynamic overload of the drives is thus prevented. This can extend the life of the Doppeltragwalzenwickelvorraum.
  • a friction damper can be used, which dampens a movement, in particular in the first direction. Of course, such a friction damper must be taken into account when dimensioning the drive.
  • a Doppeltragwalzenwickelvorraum 1 is shown, which has a first support roller 2 and a second support roller 3, wherein between the support rollers 2, 3, a winding bed 4 is formed.
  • the first carrier roll 2 has a larger diameter than the second carrier roll 3.
  • a winding tube 5 is shown in the empty state, that is, without a paper or board web is wound. It is also shown how a wound winding roll 6 is positioned in the winding bed 4.
  • a position of a rotation axis of the winding tube 5 or the winding roller 6 moves from a starting point M1 along a line L to an end point M2.
  • the position of the axis of rotation and thus the theoretical winding center shifts in response to the increase in the winding roll diameter, wherein a shift is not only in a second direction y perpendicular to the winding bed 4 and perpendicular to the axial direction, but also in a first direction x, the vertical to the axial direction and parallel to the winding bed 4 runs.
  • the line L thus represents a path curve of the theoretical winding center, are moved on the guide heads 7 of the double carrier roll winding device 1. This path is usually not linear, but is composed of movements in the first direction x and the second direction y.
  • the displacement of the axis of rotation or the theoretical winding center is due to the increase of the winding roll diameter and the different diameter of the support rollers 2, 3.
  • a shift would take place only in the second direction y.
  • the position of the theoretical winding center can be determined at least indirectly on the basis of the current winding roll diameter.
  • sensors can be provided on a loading roller device 12, which exerts a line force on the forming winding rollers 6 during the winding process.
  • the amount of line force can change over the winding process and usually starts with a maximum and then decreases to a residual value.
  • the loading roller device 12 during the entire winding process the forming winding rollers 6 applied to a relatively high line load.
  • a very stable running winding process can be achieved in this way particularly well.
  • Fig. 2 is now a schematic diagram shown how an active movement of the guide heads 7 in the first direction x can be generated.
  • the guide heads 7 are arranged on a first carriage 8, which is linearly movable in the first direction x and is movably guided on a second carriage 9, which is linearly movable in the second direction y.
  • a first drive 10 is provided, which in this case as a hydraulic
  • a damping element 11 is provided between the first drive 10 and the first slide 8 or the guide heads 7, which is formed in this case as a rubber element. The load of the first drive 10 is thereby somewhat reduced, so that a dynamic overloading is not to be feared.
  • a force F which represents a friction damper, which may be provided alternatively or additionally to the damping element 11.
  • a friction damping can also be realized by a corresponding guide, or on the carriage or on the frame.
  • a damping device within the drive or within the guide head is conceivable.
  • the winding quality can be improved and vibration can be reduced.
  • a first drive and a second drive for moving the guide heads in a first direction and in a second direction, a complete two-dimensional centering of the axis of rotation of the winding rolls on the theoretical winding center can be realized.
  • a centering force is always exerted on the developing winding roll or on edge rolls of a set of rolls. Due to the continuous positioning or movement of the guide heads, the guide heads are at each time of the winding process in the theoretical winding center of rolling on the support rollers and thereby constantly growing bobbins. The guide heads and thus the cores or winding rollers are thus guided steadily along a defined path curve.
  • At least the drive which is responsible for the active movement in the first direction, be designed as a highly dynamic actuator and thus allow an active damping.
  • the winding quality can thus be further increased.
  • the guide heads can be exactly centered on the axis of rotation of the winding tubes lying in the winding bed before the start of winding. Such positioning takes place as a function of the diameter of the winding tube and thus ensures a good centering. An eccentric positioning of the guide heads relative to the cores is thereby prevented. By an appropriate control while eliminating the need for a mechanical centering device.

Landscapes

  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)
EP11189073A 2010-12-29 2011-11-15 Procédé d'enroulement d'une bande de papier ou de carton et dispositif d'enroulement de cylindres à support double destiné à enrouler une bande de papier ou de carton Withdrawn EP2471730A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010064331A DE102010064331A1 (de) 2010-12-29 2010-12-29 Verfahren zum Aufwickeln einer Papier- oder Kartonbahn und Doppeltragwalzenwickelvorrichtung zum Aufwickeln einer Papier- oder Kartonbahn

Publications (2)

Publication Number Publication Date
EP2471730A2 true EP2471730A2 (fr) 2012-07-04
EP2471730A3 EP2471730A3 (fr) 2012-11-07

Family

ID=45349000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11189073A Withdrawn EP2471730A3 (fr) 2010-12-29 2011-11-15 Procédé d'enroulement d'une bande de papier ou de carton et dispositif d'enroulement de cylindres à support double destiné à enrouler une bande de papier ou de carton

Country Status (3)

Country Link
EP (1) EP2471730A3 (fr)
CN (1) CN102556719A (fr)
DE (1) DE102010064331A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006000055A1 (de) 2006-02-09 2007-08-16 Voith Patent Gmbh Rollenwickelvorrichtung
DE102008015670A1 (de) 2007-03-30 2008-10-02 Metso Paper, Inc. Verfahren zum Aufrollen einer Bahnrolle und Aufrollanlage für eine Bahn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110047A1 (de) * 1990-08-23 1992-10-01 Jagenberg Ag Tragwalzen-wickelmaschine
DE102006000319A1 (de) * 2006-07-05 2008-01-10 Voith Patent Gmbh Rollenwickelvorrichtung und Verfahren zum Aufwickeln einer Materialbahn
FI120442B (fi) * 2006-08-28 2009-10-30 Metso Paper Inc Laite rainan rullauksessa, erityisesti uudelleenrullain
DE102008000042A1 (de) * 2007-09-24 2009-04-02 Voith Patent Gmbh Verfahren und Vorrichtung zum Aufwickeln einer Materialbahn

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006000055A1 (de) 2006-02-09 2007-08-16 Voith Patent Gmbh Rollenwickelvorrichtung
DE102008015670A1 (de) 2007-03-30 2008-10-02 Metso Paper, Inc. Verfahren zum Aufrollen einer Bahnrolle und Aufrollanlage für eine Bahn

Also Published As

Publication number Publication date
DE102010064331A1 (de) 2012-07-05
CN102556719A (zh) 2012-07-11
EP2471730A3 (fr) 2012-11-07

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