EP2540649B1 - Procédé et arrangement en relation avec un dérouleur - Google Patents

Procédé et arrangement en relation avec un dérouleur Download PDF

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Publication number
EP2540649B1
EP2540649B1 EP11171457.2A EP11171457A EP2540649B1 EP 2540649 B1 EP2540649 B1 EP 2540649B1 EP 11171457 A EP11171457 A EP 11171457A EP 2540649 B1 EP2540649 B1 EP 2540649B1
Authority
EP
European Patent Office
Prior art keywords
unwinding
rails
unwinding station
machine roll
unwinder
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.)
Active
Application number
EP11171457.2A
Other languages
German (de)
English (en)
Other versions
EP2540649A1 (fr
Inventor
Heikki FÖHR
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
Metso Paper 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 Metso Paper Oy filed Critical Metso Paper Oy
Priority to EP11171457.2A priority Critical patent/EP2540649B1/fr
Publication of EP2540649A1 publication Critical patent/EP2540649A1/fr
Application granted granted Critical
Publication of EP2540649B1 publication Critical patent/EP2540649B1/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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/103—Arrangements for effecting positive rotation of web roll in which power is applied to web-roll spindle
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/36—Positioning; Changing position
    • B65H2301/361—Positioning; Changing position during displacement
    • B65H2301/3613—Lateral positioning
    • 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
    • B65H2301/413—Supporting web roll
    • B65H2301/4136—Mounting arrangements not otherwise provided for
    • B65H2301/41361—Mounting arrangements not otherwise provided for sequentially used roll supports for the same web roll
    • 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail
    • 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

Definitions

  • the present invention relates to production of fiber web, especially to a method and an arrangement in connection with an unwinder. More especially the invention concerns a method in connection with an unwinder according to the preamble of patent claim 1 and an arrangement in connection with an unwinder.
  • fiber web such as paper and board webs are manufactured in machines which together constitute a paper/board-manufacturing line which can be hundreds of meters long.
  • Modern fiber web machines can produce more than 450 000 tons of paper a year.
  • the speed of the machine can exceed 2000 m/min and the width of the fiber web can be more than 11 meters.
  • a fiber web completing in a machine is wound with a reel-up around a reeling shaft i.e. reel spool into a machine roll (a parent roll) the diameter of which can be more than 3,5 m and the weight more than 100 tons.
  • the purpose of reeling is to modify the web manufactured as planar into a more easily processable form.
  • the machine roll web produced in paper/board-making is full-width and even more than 100 km long so it must be slit into partial webs with suitable width and the partial webs are wound to partial rolls (customer rolls) with suitable length for the customers of the paper/board mill.
  • the slitting and winding take place as known from prior art in an appropriate separate machine i.e. in a slitter-winder.
  • a typical production and treatment line comprises a head box, a wire section and a press section as well as a subsequent drying section and a reel-up.
  • the production and treatment line can further comprise finishing devices, for example a calender and/ or a coater.
  • the production and treatment line also comprises typically at least one slitter-winder for forming customer rolls as well as a roll packaging apparatus. In connection with the slitter-winder and in connection with other finishing devices, especially those that are off-line the machine roll is unwound in an unwinder.
  • the unwinder comprises typically two unwind stands (one at the tending side and one at the drive side of the unwinder) which carry the machine roll during unwinding. In the unwind stand the machine roll is coupled to drives for rotating the machine roll during unwinding.
  • a machine roll is unwound at a slitter winder and the wide web is slit in the slitting section of the slitter winder into several narrower partial webs which are rewound at the winding section around winding cores such as bobbins to form customer rolls.
  • the customer rolls prepared at the same time from each partial web are finished the slitter winder is stopped and the rolls, or the so-called set, are removed from the machine. After this the process is continued in rewinding a new set. These stages are repeated in cycles until paper runs out from the machine roll, whereby the reel is replaced and the operation start over as unwinding of the new machine roll.
  • the partial web winder can be a carrier roll type winder where the partial web rolls are wound supported by carrier rolls and through a rewinding nip between the web roll being formed and a second carrier roll.
  • the partial roll winder can also be a center winder where the partial web roll is supported at the center and the rewinding takes place through the nip between the web roll being formed and the winding cylinder.
  • Splicing the web in other words changing the web to be unwound from the old reel to the new reel has been described as a so-called flying splice, where the end of the new web is connected to the running old web and the old web is severed at normal running speed.
  • Prior art patent publications FI 121007 and EP 1798172 also disclose unwinder in which two unwinding stations are used.
  • the material web is unwound from the roll for a subsequent cutting in the longitudinal direction and for the following is wound onto a plurality of shipping rolls and the material web is unwound from the rolls as long as the latter still has the complete size or a large size at the first unwinding position by a first drive with a high torque or with a gearbox as soon as the size of the roll has decreased to a predefined maximum size, the material web being unwound at the second unwinding position by a second drive with a low torque and the roll is unwound by first drive until a set of shipping rolls has been produced.
  • the machine roll is unwound in the first unwinding station until a certain diameter has been reached and then the machine roll is moved to a second unwinding station in which the rest of the unwinding is accomplished.
  • the machine rolls moved from the first unwinding station to the second unwinding station during a set change of in the process following slitter-winder.
  • An object of the present invention is to provide a method and an arrangement in which the disadvantages and problems of prior art unwinder in connection with the horizontal movement in axial direction are eliminated or at least minimized.
  • the arrangement according to the invention is characterized by the features of the characterizing part of claim 5.
  • the fiber web is not wound on the reeling shaft centered or it is wound oscillated and in unwinder with two unwinding stations this the transfer between the unwinding stations is made possible even when the machine roll in not centered by the movable/inclinable rail parts.
  • the inclinable rail parts are inclined such that the machine roll can be transferred along them from the rails of the first unwinding station to the rails of the second unwinding station which rails of the first unwinding station to the rails of the second unwinding are not on the same longitudinal line.
  • the movable rail parts are moved in axial direction of the machine roll such that the machine roll is transferred from the rails of the first unwinding station to the rails of the second unwinding station when being supported by the movable rail parts during the moving state of the movable rail parts.
  • the web slit into partial webs at the slitting section of the slitter winder is rewound into partial web rolls having a certain diameter and the machine roll being unwound is unwound in the primary unwinding station by means of a drive coupled with the machine roll down to a certain diameter.
  • the machine roll is transferred from the primary unwinding station, and during the transfer the tension of the web is at least partly controlled by the drive of the transfer means of the unwinding apparatus and/or by means of a brake device and, after the transfer, a new machine roll is brought to the primary unwinding station.
  • the end of the web of the new machine roll is taken to the vicinity of the splicing apparatus while the unwinding from the old machine roll is in progress.
  • the machine roll is removed from the primary unwinding station essentially in a horizontal movement to the secondary unwinding station and
  • the invention provides for the technical effect that is needed in connection with unwinder that is the possibility of using the movement of the machine roll in axial direction.
  • the invention makes it possible to move the unwinding machine roll from one unwinding station to another unwinding station of the unwinder such that the web does not break and the unwinding is moved in axial direction and the transfer between unwinding stations can be done without centering the machine roll for the transfer.
  • the transfer between the unwinding stations is done non-centered and the end structures of the machine roll move along the transfer rails and along the movable rail parts that are movable in axial direction of the machine roll.
  • FIG. 1 illustrates schematically an embodiment of the invention.
  • the unwinder 5 comprises adjacent and parallel rails 16 and 17 to support the machine rolls 10 at both ends 11 of the reeling shafts via bearings in the same way.
  • the rails 16, 17 are essentially horizontal whereby moving even the large roll to be unwound is as simple as possible.
  • the unwinder 5 comprises a first unwinding station on rails 17 and a second unwinding station on rails 16. Both unwinding stations have a locking device (not illustrated) for the machine roll 10 for locking the unwinding machine roll 10 to the unwinding station and a drive (not illustrated) for rotating the machine roll 10 during unwinding. Both the drives have a motor and a coupling member via which the motor can be coupled to the reeling shaft of the machine roll.
  • the stationary drive here means that the drive can be coupled to the unwinding shaft while it is in the unwinding station.
  • the unwinder may be modified so the second unwinding station does not have a stationary drive of its own at all but the drive of the machine roll and the control of the unwinding process is performed at the secondary unwinding station by the drive of a transfer apparatus.
  • the unwinder comprises also transfer equipment which engages the machine roll for the transfer on rails 15, 16, 17 so that the movement and the position of the machine roll are determined by the transfer equipment.
  • there is a drive and/or brake device which is arranged to follow the transfer equipment while it moves.
  • the drive and/or braked device associated with the transfer equipment can be simply called a drive.
  • the drive can in some embodiments be a simple brake means or a combination of a drive and a brake.
  • the brake means can also be for example mechanical or electric.
  • a machine roll 10 is located at first unwinding station of the unwinder 5.
  • the machine roll 10 is supported at both ends 11 on rails 17.
  • the rails 17 extend horizontally or slightly inclined adjacent and parallel.
  • the rails 16 for the second unwinding station are not located on same longitudinal line as the rails 17of the first unwinding station where the machine roll 10 needed to be moved horizontally in an axial movement is located.
  • the rail structure also comprises movable or inclinable rail parts 15.
  • the rail parts 15 are inclined such that they connect the rails of the first and second unwinding station and the machine roll 10 is moved to be transferred onto the rails 17 for second unwinding station.
  • the rail parts 15 are connected to an actuator for the movement, which actuator is for example a hydraulic cylinder.
  • the rail parts 15 can also be constructed such that one end of a rail part is connected to end of rail 16 and other end of rail part 15 is connected to rail 17 thus the rail parts 15 are moving in connection with rails 16, 17 and thus no separate actuator for the rail parts 15 in this example is needed.
  • the actuator is connected to a control for activating the movement of the rail parts 15 between the rails 16 and 17.
  • the movable/inclinable rail parts 15 can also be constructed as rails for one of the unwinding stations i.e. to be used instead of rails 16 or rails 17.

Landscapes

  • Replacement Of Web Rolls (AREA)

Claims (8)

  1. Procédé en liaison avec un dérouleur (5) de nappe fibreuse (W), procédé par lequel un rouleau mécanique (10) est déroulé en nappe fibreuse (W) dans le dérouleur (5) et par lequel le rouleau mécanique (10) est déroulé dans un premier poste de déroulement du dérouleur (5) sur de premiers rails (17) jusqu'à un certain diamètre et le rouleau mécanique (10) est déroulé dans un second poste de déroulement du dérouleur (5) sur de seconds rails (16) en partant de ce certain diamètre, caractérisé en ce que le rouleau mécanique (10) est transféré du premier poste de déroulement sur les premiers rails (17) au second poste de déroulement sur les seconds rails (16) pendant le déroulement de manière à ce que, au moins une fois pendant le transfert, le rouleau mécanique (10) soit déplacé dans son sens axial (S) en étant supporté sur des parties de rails mobiles/inclinables (15) entre les premiers et seconds rails (17 ; 16).
  2. Procédé selon la revendication 1, caractérisé en ce que le rouleau mécanique (10) est transféré du premier poste de déroulement au second poste de déroulement via des parties de rails inclinées (15) connectant les premiers rails (17) du premier poste de déroulement et les seconds rails (16) du second poste de déroulement.
  3. Procédé selon la revendication 1, caractérisé en ce que le rouleau mécanique (10) est transféré du premier poste de déroulement au second poste de déroulement via des parties de rails mobiles (15) qui sont déplacées de la ligne longitudinale des premiers rails (17) du premier poste de déroulement vers la ligne longitudinale des seconds rails (16) du second poste de déroulement alors que le rouleau mécanique (10) est supporté par les pièces de rails mobiles (15).
  4. Procédé selon la revendication 1, caractérisé en ce que les parties de rails mobiles/inclinables (15) sont déplacées par un actionneur.
  5. Dispositif en liaison avec un dérouleur (5) de nappe fibreuse (W), lequel dérouleur comprend un premier poste de déroulement sur de premiers rails (17) pour dérouler un rouleau mécanique (10) jusqu'à un certain diamètre et un second poste de déroulement du dérouleur (5) sur de seconds rails (16) pour dérouler le rouleau mécanique (10) depuis ce certain diamètre, caractérisé en ce que le dérouleur (5) comprend en outre des parties de rails mobiles/inclinables (15) entre les premiers rails (17) et les seconds rails (16), lesquels premiers et seconds rails (17 ; 16) n'étant pas positionnés sur la même ligne longitudinale pour assurer le transfert du rouleau mécanique (10) du premier poste de déroulement sur les premiers rails (17) vers le second poste de déroulement sur les seconds rails (16) pendant le déroulement de manière à ce que, au moins une fois pendant le transfert, le rouleau mécanique (10) soit déplacé dans son sens axial (S) en étant supporté sur des parties de rails mobiles/inclinables (15).
  6. Dispositif selon la revendication 5, caractérisé en ce que le dérouleur (5) du premier poste de déroulement est connecté au second poste de déroulement via des parties de rails mobiles (15) qui connectent les premiers rails (17) du premier poste de déroulement et les seconds rails (16) du second poste de déroulement.
  7. Dispositif selon la revendication 5, caractérisé en ce que le dérouleur (5) du premier poste de déroulement est connecté au second poste de déroulement via des parties de rails inclinées (15) qui connectent les premiers rails (17) du premier poste de déroulement et les seconds rails (16) du second poste de déroulement.
  8. Dispositif selon la revendication 5, caractérisé en ce que le dérouleur comprend un actionneur pour déplacer/incliner les parties de rails mobiles/inclinables (15).
EP11171457.2A 2011-06-27 2011-06-27 Procédé et arrangement en relation avec un dérouleur Active EP2540649B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11171457.2A EP2540649B1 (fr) 2011-06-27 2011-06-27 Procédé et arrangement en relation avec un dérouleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11171457.2A EP2540649B1 (fr) 2011-06-27 2011-06-27 Procédé et arrangement en relation avec un dérouleur

Publications (2)

Publication Number Publication Date
EP2540649A1 EP2540649A1 (fr) 2013-01-02
EP2540649B1 true EP2540649B1 (fr) 2013-12-11

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EP (1) EP2540649B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3696124B1 (fr) * 2019-02-18 2021-11-10 Valmet Technologies Oy Système de rail de transfert d'arbre d'enroulement et procédé de transfert d'arbres d'enroulement sur un système de rail de transfert d'arbre d'enroulement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5656446A (en) * 1979-07-25 1981-05-18 Hashimoto Denki Co Ltd Changing device of rewinding position of veneer
DE19722209A1 (de) 1997-05-27 1998-12-03 Voith Sulzer Papiermasch Gmbh Abrollstation zum kontinuierlichen Abwickeln einer Materialbahn
WO2000056645A1 (fr) 1999-03-24 2000-09-28 Jagenberg Papiertechnik Gmbh Systeme permettant de relier deux bandes de matiere
EP1604980A1 (fr) 2004-06-08 2005-12-14 Santhera Pharmaceuticals (Deutschland) Aktiengesellschaft Inhibiteurs de DPP-IV
DE102005000187A1 (de) 2005-12-16 2007-06-21 Voith Patent Gmbh Vorrichtung und Verfahren zum Abwickeln einer Materialbahn
FI121007B (fi) 2007-10-12 2010-06-15 Metso Paper Inc Menetelmä ja järjestely kuiturainan aukirullaimen yhteydessä
DE102008043482A1 (de) * 2008-11-05 2010-05-06 Voith Patent Gmbh Tambourein- und Ausrollvorrichtung

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Publication number Publication date
EP2540649A1 (fr) 2013-01-02

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