EP1954614B1 - Procede et dispositif d'enroulement de nappes associes a la modification du reglage d'une bobineuse-refendeuse - Google Patents

Procede et dispositif d'enroulement de nappes associes a la modification du reglage d'une bobineuse-refendeuse Download PDF

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Publication number
EP1954614B1
EP1954614B1 EP06820091A EP06820091A EP1954614B1 EP 1954614 B1 EP1954614 B1 EP 1954614B1 EP 06820091 A EP06820091 A EP 06820091A EP 06820091 A EP06820091 A EP 06820091A EP 1954614 B1 EP1954614 B1 EP 1954614B1
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EP
European Patent Office
Prior art keywords
roll
web
core
pusher
rolls
Prior art date
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Application number
EP06820091A
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German (de)
English (en)
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EP1954614A2 (fr
Inventor
Kenneth ÅKERLUND
Pekka Eronen
Markku JÄRVENSIVU
Heikki FÖHR
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Valmet Technologies Oy
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Metso Paper Oy
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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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2246—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being supported on two 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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/29—Securing the trailing end of the wound web to the 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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
    • 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

Definitions

  • the invention relates to a method in the winding of a fibre web in connection with the set change of a slitter-winder, in which method the fibre web is wound in a carrier roll windup, in which partial webs cut by the slitter-winder are wound to web rolls carried by carrier rolls around cores, in which method the cores are fed to the slitter-winder as an array for the set change, in which method, for the time of the set change i.e.
  • the invention relates to a method according to the preamble of claim 1.
  • the invention relates also to a device for implementing the method according to the preamble of claim 16.
  • slitter-winders By means of slitter-winders, a full-width web is cut in the longitudinal direction to partial webs on the cutting section and the partial webs are wound to customer rolls on the winding-up section.
  • the partial webs are wound around cores to fibre web rolls and the longitudinal successive cores are locked in place to a core array by means of a core-locking device located at both ends.
  • many times carrier roll windups are used as the windup, in which windups, the partial webs are wound carried by two carrier rolls to partial web rolls via a nip between a second carrier roll and a fibre-web roll being formed.
  • a belt arrangement i.e. a so-called set of belt rolls located around two leading rolls can be used as the carrier roll.
  • slitter-winders are known from prior art in which carrier roll windups are used for winding partial rolls after the slitting of a paper or board web.
  • the present invention relates to windups of carrier roll type in which the slit partial webs are wound around winding tubes, e.g. cores, supported by two rolls or by one roll and one set of rolls.
  • carrier roll is used for simplicity when referring to a support roll/set of rolls of a windup of carrier roll type i.e. including both the meanings of a carrier roll and a set of belt rolls.
  • the term core means also other types of winding tubes used and suitable for use in windups of carrier roll type.
  • partial webs being wound on the windup and web rolls being formed are referred to, according to context, either in singular or plural but meaning all partial webs and web rolls handled in the windup.
  • carrier roll windups of variable geometric in which one or both of the carrier rolls carrying the web roll are transferable.
  • the central horizontal location of the roll being formed depends on the position of the carrier rolls in respect to each other and the diameter of the roll.
  • a set change means a stage in which when manufacturing rolls always before starting a new winding the winding has to be stopped, the web to be cut by the windup and the set i.e. completely wound rolls to be removed and after setting new cores the winding of the new set i.e. partial web rolls to be completed next to start again.
  • the set change time in web winding is in practice, when using machine arrangements, around 30-70 seconds from stopping the winding to its re-starting.
  • a problem in connection with windups known from prior art as disclosed e.g in the documents US 5 845 866 , EP 1 151 946 , US 4 580 283 , EP 0 744 365 and DE 29 719 544 relates to fastening the tail of partial web rolls being wound i.e. each fibre-web roll being completed for the set change.
  • the fibre-web roll is in contact with both the rear carrier roll and the front carrier roll, whereby the glue is pressed fast in the winding nip between the rear carrier roll and the fibre-web roll being formed.
  • This causes a problem in a stage in which the completed fibre-web rolls are pushed out of the windup, because the glued web can open from the roll.
  • An opening web causes with certain web grades, especially heavy grades, such as board webs, splitting on the area of the glue stripe i.e. the glue does not give up any more but the surface layer of the web is detached with the glue instead of the glue stripe opening on the glue area.
  • the split glue stripe will not adhere any more, whereby the tail remains detached from the roll in the completed roll.
  • the detachment of the web end from the roll can cause tearing of the web and problems in the measuring and the transport and further processing of the fibre-web roll.
  • a problem can be that the glue can be pressed through several web layers because of the pressing effect of the nip.
  • a fibre-web roll 10' being formed comprises an area I' 2 which is a glue stripe area gone through a nip formed by a rear carrier roll 11' and the fibre-web roll 10'.
  • Reference I' 1 refers to a glue stripe being open.
  • Reference number 15' refers to a cutting blade which is placed according to the next core size.
  • the completed fibre-web roll 10' is transferred by a pusher 17' towards a front carrier roll, here a set of belt rolls, which is formed of two rolls 12', 13' and a belt 14' for the pushing out, the length I' 1 is as in the version shown in Fig. 1A , and reference I' 3 refers to the portion of the glue stripe I' 2 which opens during pushing out and on which area possible splitting can occur.
  • Reference I' 4 refers to a glue stripe which does not open. Thus, only a small area I' 1 tries to keep the tail fastened to the roll 10' after cutting and pushing out, which has many times proven inadequate, and the tail of the web can have been left to flap and the roll has later started to unwind.
  • a problem existing in connection with prior-art carrier roll windup relates to the measuring of the length of cores.
  • the length of cores is measured so that during the feeding of a core array the location of the end of the core array is measured by a sensor in relation to the location of the other end, whereby the length of the core array is discovered.
  • a disadvantage of this practice is that if there are several cores in the array to be fed, it is not possible to measure the length of individual cores because the joint between the cores cannot be distinguished reliably enough.
  • the core array is gripped with a suction cup array for transferring them to a winding position for starting a new set.
  • Arrangements known from prior art use suction cups in one array from which the cores can be easily detached because of a force perpendicular in relation to the central axle of the suction cup affecting the core. The force can be caused by gravity or acceleration. Furthermore, the position of the cores during transfer is inaccurate when using only one suction cup array.
  • the object of the invention is to provide a method and a device in web winding in connection with the set change of a slitter-winder in which the above-described problems and disadvantages have been eliminated or at least minimised.
  • An additional, non-essential object of the invention is to create a method and a device by using which the gluing of the end of the web to the fibre-web roll being completed takes place so that no splitting is able to occur with thick fibre web types, nor the end of the web remains hanging loose in the completed roll and, on the other hand, when winding thin grades, the glue does not penetrate through several layers.
  • a non-essential further object of the invention is to provide an arrangement in which, for cutting the web, there is no need for a separate counter blade and in which, on the other hand, the location of the cutting blade is stationary in the time of cutting, whereby the cutting point is accurate.
  • a non-essential additional object of the invention is to provide an arrangement in which no separate remover of small rolls is required.
  • An non-essential further object of the invention is to provide a measuring arrangement for measuring a core length by which the length of each core in the core array and the order of the cores in relation to each other are discovered.
  • a non-essential additional object of the invention is to provide an arrangement in which the transfer of the core array is reliable and the position of the cores is accurate.
  • a device according to the invention is mainly characterised by what is presented in the characterising part of claim 16.
  • a completing fibre-web roll is pushed off the rear carrier roll during the deceleration of the roll before gluing or during gluing the end of the web so that the cutting blade of the web is able to transfer up to the cutting position without the web braking.
  • a glue stripe or at least its tail part does not go to the completing web roll until the roll has been lifted off the rear carrier roll.
  • an advantage is achieved that a greater part of the glue stripe remains bare to wait for the final compression in a nip between the roll pusher and the roll and, on the other hand, that the glue stripe opening during the pushing out has not gone through a nip between the rear carrier roll and the web roll being formed, whereby the glue has not been pressed, nor splitting occurs so easily than in arrangements known from prior art, nor there is a risk of the glue being pressed through several layers with thin grades.
  • the glue is pressed before final compression only with web tightness and it has not passed through the winding nip.
  • a novelty is that the completing fibre-web roll is transferred for a small travel when carrier rolls still rotate.
  • the web roll can be stopped, if required, and started again for rotating or the web roll can rotate carried by the front carrier roll and the roll pusher for the whole time.
  • the web roll can be stopped, if required, and started again for rotating or the web roll can rotate carried by the front carrier roll and the roll pusher for the whole time.
  • a further advantage in this is also that because the glue has not been under compression in the nip, the glue adheres during the actual gluing better when being fresh, because no compression and thus spreading of the glue has occurred in the earlier stages.
  • the roll pusher of the completed roll is designed and arranged to move so that it can form an adequate cutting angle for the web against the stationary cutting blade.
  • the roll pusher is of such a shape that it fits between the web roll and the roll without the centre of gravity of the rolls transferring over the top of the foremost carrier roll in the vicinity of the first carrier roll before the web is cut, most suitably the roll pusher is thin.
  • the roll pusher is arranged to move in the beginning of the pushing motion before the web cuts.
  • the roll pusher is advantageously provided with a guide part via which also a small roll can be pushed out of the winding assembly without a remover device of small rolls being moved by a separate actuator.
  • This embodiment of the invention enables a cutting blade stationary during cutting without a counter blade, because the web folds at an adequately sharp angle against the cutting blade, the guide part ensuring the travel of the web, and further tightens against the blade and cuts, whereby the cutting point is accurate and no complex arrangements are required for implementing the counter blade.
  • the roll pusher extends on the other side of a line passing via the centres of the fibre-web roll being formed and the rear carrier roll, whereby the pushing motion of the roll provided via it brings the roll so far that the tail of the gluing becomes pressed against the roll in a nip between the pusher and the roll controllably against an area sloping upwards of the lowering device, which in part also enables that the roll will not escape but remains in control.
  • the core being measured in the array is pulled more quickly than the other array, whereby there remains a gap between the core being measured and the remaining array, by means of which gap it is possible to measure the length of the core as a direct measurement by measuring the distance between the first end of the core and the second end of the core or as an indirect measurement as a difference of the earlier measurement and the length of the remaining core array.
  • information on the length of an individual core is obtained quickly enough when the measurement is performed before feeding the cores to the windup and when pulling always one i.e. the core to be measured aside.
  • the measurement can be done either from the end of the core being measured as a direct measurement or from the end of the first core in the remaining core array as an indirect difference measurement. After the measurement, the cores are pushed to the machine, whereby the gaps between them close up and the core array is lockable in place between the core locks. On the other hand, it is possible to implement the measurement also so that the core being measured is deflected momentarily apart from the feed direction compared to the other core array and the measurement is performed. After the measurement, the core is returned to the feed direction and the cores are pushed to the machine, whereby the gaps between them close up and the core array is lockable in place between the core locks.
  • Measuring means can comprise an absolute sensor which measures the location of the core array, and/or a linear sensor or a photo cell or a measuring means based on laser measuring by means of which the location of the core separated from the array is measured.
  • an actuator which can be e.g. a drive wheel or a separate belt having a different speed than the belt of the core array or a pusher by which the core being measured is deflected from the array, or the core being measured can be deflected from the array by means of gravity.
  • suction cups which are placed to at least two arrays, or at least two suction zones.
  • the suction cup arrays or suction zones are arranged parallel, at an angle in relation to each other, to a distance from each other extending in the longitudinal direction of the core array.
  • the cores are gripped with two or more arrays of suction cups or with two or more suction zones, and the position of the suction cup arrays/suction zones in relation to each other can be fixed or advantageously settable according to the diameter of the cores and the space between the carrier rolls.
  • the suction cup arrays are most advantageously fastened/the suction zones are arranged to beams which, for their part, are fastened to the core feeder which brings the cores to the mouth between the rolls after the previous completed roll has exited.
  • the mutual position of the suction cup arrays/suction zones is changed with a mechanism, e.g. a pivot mechanism, or guides moved by an actuator, e.g. a cylinder or a motion screw, which changes the distance between the beams in which the suction cups are fastened and possibly the angle between the beams.
  • the mutual position of the suction cup arrays is set suitable according to the core size and the space between the carrier rolls.
  • the present invention and its different embodiments apply for use extremely advantageously when winding thick fibre-web types, such as boards, more especially coated boards, because splitting is especially a problem of coated board grades and, on the other hand, because when winding thick grades the rolls are completed quickly, whereby there is no time for measuring individual cores. Also the cores of thick grades are many times heavy and thus require a lot of lifting power, which is achieved with the advantageous embodiment of the invention.
  • the invention and its different embodiment are also usable in winding thin web grades.
  • Fig. 1A schematically shows a winding stage in an arrangement known from prior art in which stage a fibre-web roll 10' is about to be completed and glue has been applied to it in order to make the surface layer to adhere to the completed fibre-web roll 10'.
  • a rear carrier roll is referred to with reference number 11' and a front carrier roll is formed of a set of belt rolls which comprises two rolls 12' and 13' and a belt 14' arranged around them which belt forms an endless belt loop.
  • a cutting blade has been referred to with reference number 15' and its counter blade with reference number 16'. According to Fig.
  • a glue area l' 2 has been formed on the surface of the fibre-web roll 10', which is a glue area gone trough the nip formed by the rear carrier roll 11' and the fibre-web roll 10' being formed which is tightly glued as the mass of the fibre-web roll 10' affects in the nip as a pressing force.
  • the glue area which when transferring the fibre-web roll 10' towards the pushing out stage opens up, is designated in the figure with reference l' 1 .
  • the glue area l' 1 is open, as in the above-mentioned stage, and from the fibre-web roll 10' when the web tightens the open glue area l' 3 opens up and can split the glue being extremely tightly fast in the fibre-web roll 10', and the glue area remaining fast in the fibre-web roll 10' is referred to with reference number l' 4 .
  • the glue area l' 1 trying to keep the tail of the web fast to the roll 10' after cutting and pushing out has remained on the surface layer of the web, because it is possible that the glue area l' 3 has opened and split.
  • Fig. 2 schematically shows an arrangement known from prior art in which counter-bladed cutting is used i.e. in which in addition to a cutting blade 15' into connection with the windup is arranged a counter blade 16' by means of the interaction of which the web is cut.
  • a tail gluing device of the web is designated with reference number 29'.
  • the fibre-web rolls 10' have gained a desired size of their diameter i.e. the roll 10' is a full roll, and the carrier roll windup has been stopped.
  • the first cutting member 15' is lifted from a gap between the carrier rolls 11' and 12', 13', 14' upwards to the point that the cutting point is accurate according to the diameter of new winding cores.
  • the tip of the roll pusher 17' which is advantageously a roll, is rotated upwards carried by pivots.
  • Fig. 3C shows a situation in which the completed roll 10' is pushed by the roll pusher 17' to a lowering device 19'.
  • Fig. 3D shows a situation in which a new winding core i.e. core 20' is set to the support of the carrier rolls 11' and 12', 13', 14' to a gap between them, and a new winding is thus ready to start from the carrier roll windups in a known way as such.
  • Figs. 4A-4C schematically show an arrangement known from prior art in which no counter blade is used for cutting.
  • the fibre-web roll 10' is completing and the fibre web W' is wound supported by the rear carrier roll 11' and the set of belt rolls 12', 13', 14' to the fibre-web roll 10'.
  • the roll pusher 17' is transferred to push the completed fibre-web roll 10' towards the lowering device 19' and the cutting blade 15' rises to the cutting position and performs a separate cutting motion for cutting the web.
  • Fig. 4A the fibre-web roll 10' is completing and the fibre web W' is wound supported by the rear carrier roll 11' and the set of belt rolls 12', 13', 14' to the fibre-web roll 10'.
  • the roll pusher 17' is transferred to push the completed fibre-web roll 10' towards the lowering device 19' and the cutting blade 15' rises to the cutting position and performs a separate cutting motion for cutting the web.
  • the completed fibre-web roll 10' is transferred to the lowering device 19' and a new core 20' has been transferred to the support of the rear carrier roll 11' and the set of belt rolls 12', 13', 14' and the cutting blade 15' has been lowered to the stand-by position.
  • Figs. 5A-5C schematically show measuring the length of a core array 20 according to an embodiment of the invention.
  • the core array comprises several cores 20 1 ... 20 5 of different lengths which are pushed as a core array 20 by a conveyor forming of rolls 21, 23 and a belt 22 rotating around them with speed V 1 towards the windup.
  • an absolute sensor 24 by which the location of the core array is measured
  • a second sensor 26 which is most suitably e.g. a linear sensor by means of which the length of a core separated from the array is measured.
  • the core array 20 is about to be transferred towards the windup and in the measuring stage a location data 1 i.e.
  • the position of the first end of the core 20 1 being measured in the core array 20 is obtained from the measurement of the sensor 26.
  • the core 20 1 being measured in the core array 20 has been transferred at least partly apart from the other array by means of e.g. a drive wheel 27 of different speed V 2 or a belt or by deflecting it in the cross direction by e.g. a pusher and in the vertical direction by means of e.g. gravity.
  • the measurement can be performed as a direct measurement by measuring the first end, Fig. 5A , and the second end of the core by the sensor 26, Fig.
  • the location data 2 is obtained when the sensor 26 measures the first end of the following core 20 2 i.e. the end of the remaining core array 20, whereby the length L of the core 20 1 being measured is location data 1 - location data 2.
  • the length of the other cores 20 2 ...20 5 in the core array 20 is measured correspondingly.
  • Figs. 6A-6B schematically show an arrangement according to an embodiment of the invention in which a completing fibre-web roll 10 is pushed off the rear carrier roll 11 by the roll pusher 17 during the deceleration of the roll 10 and before applying and during applying the glue so much that the cutting blade 15 is able to rise up without the web W breaking.
  • the applying of the glue is performed according to the invention so that the glue stripe or at least its tail part does not go to the completing roll until the completing roll is off the rear carrier roll 11, a greater part of the glue stripe remains bare to wait for the final compression in a nip between the roll pusher 17 and the fibre-web roll 10.
  • the fibre-web rolls 10 are pushed by the roll pusher 17 apart from the rear carrier roll 11 in the deceleration stage before stopping the windup and the glue stripes are run to the fibre-web roll 10 and the machine is stopped so that the glue stripe remains above the cutting point.
  • the length of the open glue area l 1 is around 200-300 mm, and the portion of the glue area pressed fast with web tightness is l 4 , and a glue area l 5 has gone trough the nip of the roll pusher 17 and/or the rear carrier roll 11. A situation is evident from Fig.
  • a glue area l 6 is, for its part, the glue area l 5 of the previous figure and the portion of the glue area l 4 which remains fast in the roll.
  • the glue areas l 6 and l 1 are glued in a nip between the roll pusher 17 of the roll 10 and the roll 10 when pushing the roll 10 further towards the lowering device.
  • Figs. 7A-7D schematically show an embodiment of the invention for a new roll pusher 17 which is arranged so that a tail glued to the roll 10 is wound fast to the surface of the roll by a pushing motion of the roll pusher 17 controllably so that the roll cannot escape from the contact with the roll pusher, whereby there is necessarily no need for rotating the front carrier roll.
  • the roll pusher 17 is designed and arranged to move so that it can form an adequate cutting angle for the web against the cutting blade without the centre of gravity of the rolls to transfer over the top of the foremost carrier roll 18.
  • the roll pusher 17 is of such a shape that it fits between the web roll and the roll without the centre of gravity of the rolls transferring over the top of the foremost carrier roll in the vicinity of the first carrier roll before the web is cut, most suitably the roll pusher is thin.
  • the roll pusher 17 is provided with a guide part 17A via which also a small roll can be pushed out of the winding assembly without a remover device of small rolls being moved by a separate actuator.
  • Fig. 7A the fibre-web roll 10 is being completed and, in Fig. 7B , the cutting blade 15 has been lifted to the cutting position.
  • Fig. 7A the fibre-web roll 10 is being completed and, in Fig. 7B , the cutting blade 15 has been lifted to the cutting position.
  • the completed fibre-web roll 10 is pushed by the roll pusher 17 towards the top of the front carrier roll 18, whereby the cutting blade 15 cuts the web W, whereby the guide part 17A of the roll pusher ensures the accurate path of the web.
  • the roll pusher 17 pushes the completed roll to the lowering device.
  • Figs. 8A-8C schematically show an advantageous embodiment of the invention in which the roll pusher- 17 according to an advantageous embodiment of the invention is used for removing a small roll 10.
  • the roll pusher 17 corresponds with its substantial characteristics the one described in connection with Figs. 7A-7D .
  • the guide part 17A of the roll pusher 17 is brought to contact with the small roll 10 being removed which roll 10 is in the support of the carrier rolls 11, 18 in a gap between them.
  • Fig. 8B by means of the guide part 17A of the roll pusher 17 the small roll 10 is pushed towards the lowering device 19 and, in Fig.
  • the small roll 10 has been transferred to the lowering device 19 by the roll pusher 17, after which the roll pusher 17 is returned to the stand-by position for next required removal of either a small roll or a large roll, and the small roll 10 exits by means of the lowering device 19.
  • Figs. 9A-9B schematically show an embodiment of the invention in which for transferring the core array 20 from a channel to a mouth between the carrier rolls into connection with the windup has been arranged at least two suction cup arrays 31, 32 which grip the core array 20 and move the cores in the core array 20 safely and reliably to the support of the carrier rolls 11 and 18.
  • the suction cup arrays are fastened/the suction zones are arranged to beams which, for their part, are fastened to the core feeder which brings the cores to the mouth between the rolls after the previous completed roll has exited.
  • Fig. 9A shows the grip to a small core and Fig. 9B to a large core.
  • the angle and the position between the suction cup banks 31, 32 is adjustable according to the space between the carrier rolls and the used core size so that a solid grip is obtained of the core array 20.
  • two unitary suction zone 31, 32 are applicable.

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  • Replacement Of Web Rolls (AREA)

Claims (20)

  1. Procédé lors de l'enroulement d'une nappe de fibres dans le cadre d'un changement de série d'une machine à refendre et à bobiner, procédé dans lequel la nappe de fibres (W) est enroulée dans un appareil enrouleur à rouleaux porteurs, dans lequel des nappes partielles (W) coupées par la machine à refendre et à bobiner sont enroulées en rouleaux (10) de nappe portés par un rouleau porteur (11) avant et un rouleau porteur (12, 13, 14, 18) arrière autour de coeurs (201... 205), procédé dans lequel les coeurs sont alimentés à la machine à refendre et à bobiner par groupe (20) pour le changement de série, procédé dans lequel, lors d'un changement de série c'est-à-dire lorsqu'on enlève des rouleaux (10) finis et que l'on commence de nouveaux rouleaux (10), l'enroulement est arrêté, procédé dans lequel la nappe est coupée au moyen d'un dispositif de coupe (15), les queues des nappes partielles sont attachées aux rouleaux de nappe, les rouleaux de nappe finis sont enlevés au moyen d'un poussoir à rouleau (17), de nouveaux coeurs (201...205) sont transférés au support des rouleaux porteurs (11, 12, 13, 14, 18), caractérisé en ce que, dans le procédé, en enlevant un rouleau (10) de nappe partielle fini de la machine à refendre et à bobiner par le poussoir à rouleau (17), la partie principale de queue d'une bande de colle formée par une colle appliquée à la queue de la nappe du rouleau (10) de nappe est finalement rapidement pressé dans une ligne de contact entre le poussoir à rouleau (17) et le rouleau (10) de nappe partielle.
  2. Procédé selon la revendication 1, caractérisé en ce que, dans le procédé, un rouleau (10) de fibres complémentaire est poussé/libéré du rouleau porteur (11) arrière lors de la décélération du rouleau avant une application de la colle ou pendant l'application de la colle afin d'empêcher la partie principale de queue de la bande de colle de passer par une ligne de contact entre le rouleau porteur (11) arrière et le rouleau (10) de nappe partielle /de presser dans une ligne de contact entre le rouleau porteur (11) arrière et le rouleau (10) de nappe partielle.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'en appliquant la partie principale de queue de la colle les derniers 300-500 mm de la bande de colle sont obtenus.
  4. Procédé selon l'une quelconque des revendications 1-3, caractérisé en ce que, dans le procédé, les rouleaux de nappe partielle finis sont poussés hors de l'appareil enrouleur par un poussoir à rouleau (17) et que le poussoir à rouleau (17) s'étend au moins partiellement jusqu'au côté du rouleau porteur avant d'une ligne passant par les centres du rouleau (10) de nappe de fibres en cours de formation et le rouleau porteur (11) arrière.
  5. Procédé selon la revendication 4, caractérisé en ce que, dans le procédé, les rouleaux de nappe partielle finis sont poussés hors de l'appareil enrouleur par un poussoir à rouleau (17) vers un dispositif d'abaissement (19) en transférant le poussoir à rouleau (17) de sorte qu'une partie de guidage (17A) du poussoir à rouleau (17) en contact avec la nappe s'étend jusqu'au côté du rouleau porteur avant d'une ligne passant par les centres du rouleau (10) de nappe des fibres en cours de formation et le rouleau porteur (11) arrière, moyennant quoi un angle de coupe adéquat pour la nappe (W) est fourni, et que la nappe est coupée contre une lame de coupe (15) qui reste fixe pendant la coupe.
  6. Procédé selon l'une quelconque des revendications 1-5, caractérisé en ce que, dans le procédé, le rouleau (10) de fibres complémentaire est transféré à l'écart du rouleau porteur (11) arrière lorsque les rouleaux porteurs sont encore en rotation.
  7. Procédé selon l'une quelconque des revendications 1-5, caractérisé en ce que, dans le procédé, lors de l'enroulement de la série précédant le changement de série de la machine à refendre et à bobiner, de nouveaux coeurs (201... 205) sont alimentés à l'appareil d'enroulement de la machine à refendre et à bobiner par groupe (20) et, dans le procédé, la longueur des coeurs individuels dans le groupe sont mesurées de sorte qu'un coeur (201) est dévié/séparé du groupe central (20) pour sa mesure directe ou indirecte.
  8. Procédé selon la revendication 7, caractérisé en ce que, dans le procédé, au moyen d'un espace (F) entre le coeur (201) en cours de mesure et le groupe central (20) restant ou une encoche prévue en déviant, l'emplacement du coeur (201) en cours de mesure est mesuré et l'emplacement du groupe central (20) restant et la longueur du coeur (201) sont définis comme une mesure indirecte comme une différence de données locales reçues sur la base desdites mesures, ou en ce que, dans le procédé, la position de la première et de la deuxième extrémité du coeur (201) en cours de mesure et déviée/séparé du groupe (20) est mesurée pour définir la longueur du coeur (201) comme une mesure directe.
  9. Procédé selon l'une quelconque des revendications 7-8 caractérisé en ce que, dans le procédé, pour séparer le coeur (201) en cours de mesure et l'autre groupe central (20), le coeur (201) en cours de mesure est transféré par une roue d'entraînement (27), un transporteur à courroie ou un équivalent, moyennant quoi la vitesse de transfert du coeur (201) en cours de mesure est plus élevée que la vitesse de l'autre groupe central (20), ou le coeur (201) en cours de mesure est transféré dans le sens travers par un poussoir ou par un équivalent, ou le coeur en cours de mesure est transféré dans la direction verticale, avantageusement par gravité.
  10. Procédé selon une quelconque des revendications 7-9, caractérisé en ce que, dans le procédé, la position du coeur (201) en cours de mesure est mesurée par un dispositif de mesure, par exemple un capteur (26) et, pour définir la longueur du coeur, la position du premier coeur du groupe central (20) restant est mesurée, moyennant quoi la longueur du coeur (201) en cours de mesure est donnée comme une différence des mesures effectuées.
  11. Procédé selon l'une quelconque des revendications 1-10, caractérisé en ce que, dans le procédé, les coeurs (20) sont transférés au support du rouleau porteur arrière et du rouleau porteur avant de l'appareil enrouleur de la machine à refendre et à bobiner jusqu'à un écart formé par eux au moyen d'au moins deux bancs à ventouse (31, 32) ou deux zones (31,32) d'aspiration uniformes.
  12. Procédé selon la revendication 11, caractérisé en ce que la distance et/ou l'angle entre les groupes de ventouse/zones d'aspiration est réglable selon la taille du coeur.
  13. Dispositif lors de l'enroulement d'une nappe de fibres dans le cadre d'un changement de série d'une machine à refendre et à bobiner, lequel dispositif est agencé en liaison avec un appareil enrouleur à rouleaux porteurs, lequel appareil enrouleur à rouleaux porteurs comporte un rouleau porteur (11) arrière et un rouleau porteur (12, 13, 14, 18) avant porté par lesquels les nappes partielles coupées en nappes partielles par la machine à refendre et à bobiner sont enroulées en rouleaux de nappe partielle autour de tubes d'enroulement (20) c'est-à-dire des coeurs, caractérisé en ce que le dispositif comporte un poussoir à rouleau (17) lequel poussoir à rouleau (17) est pivoté en liaison avec l'appareil enrouleur de sorte que le poussoir (17) soit agencé pour pousser le rouleau (10) hors de l'appareil enrouleur formant une ligne de contact entre le poussoir à rouleau (17) et le rouleau (10) de nappe partielle fini pour la compression finale d'une bande de colle appliquée à la queue du rouleau (10) de nappe partielle.
  14. Dispositif selon la revendication 13, caractérisé en ce que le poussoir à rouleau (17) s'étend au moins partiellement jusqu'au côté du rouleau porteur avant d'une ligne passant par les centres du rouleau (10) de nappe de fibres en cours de formation et le rouleau porteur (11) arrière pour effectuer la découpe de la nappe contre une lame de coupe (15) qui reste fixe pendant la coupe.
  15. Dispositif selon la revendication 13 ou 14, caractérisé en ce que le poussoir à rouleau comporte une partie de guidage (17A) pour commander le déplacement de la nappe vers l'autre côté d'une ligne passant par les centres du rouleau (10) de nappe de fibres en cours de formation et le rouleau porteur (11) arrière pour effectuer la coupe de la nappe contre la lame de coupe (15) qui reste fixe pendant la coupe.
  16. Dispositif selon l'une quelconque des revendications 13-15, caractérisé en ce que le poussoir à rouleau (17) est mince afin qu'il soit agencé pour s'ajuster entre le rouleau (10) de nappe partielle et le rouleau porteur (11) sans que le centre gravité du rouleau (10) de nappe partielle ne soit transféré sur le rouleau porteur avant.
  17. Dispositif selon l'une quelconque des revendications 13 ou 16, caractérisé en ce que le dispositif comporte une courroie (21, 22, 23) de coeurs pour alimenter les coeurs de l'appareil enrouleur de la machine à refendre et à bobiner et un agencement de mesure (24, 26) pour mesurer la longueur des coeurs transportés sur la courroie de coeurs (21, 22, 23) un coeur à la fois, l'agencement de mesure (24, 26) comporte au moins un capteur (26) et un actionneur (27) pour séparer le coeur en cours de mesure du groupe de coeurs (20) se déplaçant sur la courroie de coeurs (21, 22, 23).
  18. Dispositif selon la revendication 17, caractérisé en ce que l'actionneur (27) est une roue d'entraînement, un transporteur ou un poussoir ou en ce que l'actionneur (27) est basé sur la séparation du coeur en cours de mesure par gravité.
  19. Dispositif selon l'une quelconque des revendications 13 ou 18, caractérisé en ce qu'en rapport avec l'appareil enrouleur sont agencés au moins deux groupes de ventouses (31, 32) ou deux zones d'aspiration qui sont écartées l'une par rapport à l'autre pour transférer des coeurs (20) par groupe pour l'appareil enrouleur.
  20. Dispositif selon la revendication 19, caractérisé en ce que l'angle et/ou la position entre les groupes de ventouse/zones d'aspiration (31, 32) est réglable.
EP06820091A 2005-11-28 2006-11-23 Procede et dispositif d'enroulement de nappes associes a la modification du reglage d'une bobineuse-refendeuse Active EP1954614B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20055628A FI118762B (fi) 2005-11-28 2005-11-28 Menetelmä ja laite rainan rullauksessa pituusleikkurin muutonvaihdon yhteydessä
PCT/FI2006/050511 WO2007060293A2 (fr) 2005-11-28 2006-11-23 Procede et dispositif d'enroulement de nappes associes a la modification du reglage d'une bobineuse-refendeuse

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EP1954614A2 EP1954614A2 (fr) 2008-08-13
EP1954614B1 true EP1954614B1 (fr) 2011-10-05

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EP (1) EP1954614B1 (fr)
CN (1) CN101316779B (fr)
AT (1) ATE527197T1 (fr)
FI (1) FI118762B (fr)
WO (1) WO2007060293A2 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US8870112B2 (en) 2009-11-23 2014-10-28 Valmet Technologies, Inc. Set changing device of a slitter-winder

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI123537B (fi) * 2009-04-21 2013-06-28 Metso Paper Inc Pituusleikkurijärjestely ja menetelmä pituusleikkurijärjestelyn käyttämiseksi
EP2543616B1 (fr) * 2011-07-05 2014-01-01 Metso Paper, Inc. Agencement dans un enrouleur-découpeur longitudinal pour une machine à bande fibreuses
FI125686B (fi) * 2013-10-21 2016-01-15 Valmet Technologies Inc Menetelmä ja järjestely kuiturainan pituusleikkurin yhteydessä
EP3009383B1 (fr) 2014-10-17 2019-12-04 Valmet Technologies, Inc. Procédé et agencement pour la fixation d'une extrémité arrière d'une bande dans un rouleau de bande sur une surface du rouleau
CN104526747A (zh) * 2014-12-24 2015-04-22 江门市蓬江区华龙包装材料有限公司 一种气泡膜切割台

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DE3243994C2 (de) * 1982-11-27 1986-07-10 J.M. Voith Gmbh, 7920 Heidenheim Wickelmaschine zum Aufwickeln einer längsgeteilten Bahn
JPS59124644A (ja) * 1982-12-27 1984-07-18 Ishikawajima Harima Heavy Ind Co Ltd 抄紙機に於ける巻取方法及びその装置
US5413656A (en) * 1990-09-14 1995-05-09 Jagenberg Aktiengesellschaft Method and device for exchanign windings rolls
DE19519306A1 (de) * 1995-05-26 1996-11-28 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zum automatischen Trennen und Anwickeln einer Papierbahn
FI101876B1 (fi) * 1996-11-05 1998-09-15 Valmet Corp Menetelmä rainan katkaisemiseksi ja rainan katkaisulaite
DE10021376B4 (de) * 2000-05-02 2005-05-12 Voith Paper Patent Gmbh Verfahren zum Aufwickeln einer Materialbahn und Wickelvorrichtung

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Publication number Priority date Publication date Assignee Title
US8870112B2 (en) 2009-11-23 2014-10-28 Valmet Technologies, Inc. Set changing device of a slitter-winder

Also Published As

Publication number Publication date
WO2007060293A3 (fr) 2007-08-23
FI118762B (fi) 2008-03-14
FI20055628A0 (fi) 2005-11-28
CN101316779B (zh) 2012-10-03
FI20055628A (fi) 2007-05-29
WO2007060293A2 (fr) 2007-05-31
CN101316779A (zh) 2008-12-03
EP1954614A2 (fr) 2008-08-13
ATE527197T1 (de) 2011-10-15

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