FI122724B - ORGANIZATION AND METHOD WITH FIXED ROLLER - Google Patents

Description

FIELD AND FIELD OF THE INVENTION FIELD OF THE INVENTION

The invention relates to an arrangement with a retractor. The invention also relates to a method with a winder. In particular, but not exclusively, the invention relates to reel roll rotation and fiber web wrecking in connection with fiber web machines, preferably paper and board machines.

BACKGROUND OF THE INVENTION

It is known that paper is produced on machines that together form a paper production line that can be hundreds of meters long. Modern paper machines can produce more than 450,000 tonnes of paper per year. The speed of the paper machine can exceed 2000 15 m / min and the width of the paper web can be over 11 m.

In papermaking lines, papermaking is a continuous process. A paper machine made from a papermaking machine is rolled around a winding core, which acts as a reel core, or a reel spool, into a machine roll, which may be 20 meters in diameter and more than 160 tons in weight. The purpose of the winding is to convert a flat paper web into a more manageable shape. With the reel, the continuous process of the paper machine is interrupted for the first time and switches to intermittent operation. The aim is to do this periodically with the best possible efficiency so that the work already done is not wasted

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o 25 wasted.

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co o m The paper roll of the papermaking machine has a full width and even more than 100 x km, so it has to be cut to a width suitable for paper mill customers and O.

lengths and rolls around the cores in the so-called. customer rolls before shipment from cm 30 paper mill. This web longitudinal cutting and winding takes place in a known separate machine, i.e. a winder.

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In the winder, the machine roll is unwound, the wide web is cut by a cutting section into a number of narrower sub-webs, which are wound by a winding section around customer cores such as cores. When the customer rolls are ready, the winder is stopped and the rollers, or so-called rollers, are stopped. the move is removed from the machine. After this, the process is continued as a new move roll. These steps are repeated periodically until the paper runs out of the machine reel, whereupon the machine reel is replaced and operation begins again as a new machine reel.

In the known high-speed papermaking lines, the papermaking machine may produce more paper than a single winder can handle, requiring more winders in the papermaking line. The winders are normally located parallel to the machine line and adjacent to each other for a certain distance.

15 In known papermaking line space solutions, i.e. layout arrangements, typically the first winder is arranged in a so-called. inline winder, which means that the winder is positioned in line with the paper machine, the main machine line. Another winder is the so-called. an offline cutter, that is, located to the side of the center line of the paper machine, usually adjacent to the first cutter 20, typically in a so-called building block. on a side ship, that is, in the extension of the hangar built for this winder. Both winders produce customer rolls, which are transported by roller conveyors first, for example, to a roll wrapping machine and finally to a warehouse before being shipped to customers.

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cb In known paper machine line winders, the machine reel is brought to an i m winder not connected to the transfer rails by a paper machine, normally an x hall crane, and lowered to the transfer rails typically positioned such that

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the center of the machine roll is approximately 2.5 meters from the floor. In applications where the cm 30 paper machine reel and winder are interconnected by inline transfer rails, the machine reel is moved along the transfer rails from the reel to the winder.

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It is known that the transfer rails of full machine rolls consist of horizontal or inclined rails to the waiting station. On the transfer rails, the machine roll is moved from the waiting station to the other until the unrolling station. The machine roll is moved from one station to another on horizontal transfer rails by means of a transfer device and on inclined transfer rails 5 by gravity scrolling, by stopping and release mechanisms.

Usually, when winding the winder, some paper remains on the reel reel, which is known to have to be emptied before returning to the reel and beginning reeling. Unloading the paper remaining on the reel roll to the pulper 10 reduces the capacity of the winder or requires a separate drainage space, which makes the layout complicated and expensive. Returning the empty reel shafts or reel spools from the winder unroller to the unloading position and further to the reel store requires reel roll work, typically crane transfers. The crane's load can damage other equipment and the crane must be operated in a safe manner. The crane and its high-moving bridge require a tall building, which means large and expensive construction investments.

WO 2009/092861 A1 discloses a method in which an empty winding shaft 20 is introduced in a process sequence by a lateral displacement in a process sequence prior to the winder winding roller.

SUMMARY

According to a first aspect of the invention, an arrangement ώ is provided with a fibrous web reel which comprises a winding cylinder for winding the fibrous web m into a machine reel in the reeling area x of the reel x. Arrange on the rewinder point before the rewinder

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an unwinding area is provided for emptying the fibrous web from a cm 30 of the second winding axis.

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The roll-up area in this context means the area taken up by the roll-up in the reel and the safety distances 5 to 4 applicable to the equipment.

Preferably, the drain nipple is provided below the web extension of the fibrous web web entering the reel.

Preferably, the emptying head is provided in connection with the reel shaft storage prior to the reeling area of the reel.

Preferably, the emptying site is arranged adjacent to the transfer rails of the reel shafts comprised of the reel shaft stock. The discharge point may be arranged at the end of the transfer rails.

Preferably, the drainage site comprises a roller shaft transfer device as a drainage location for the second roller shaft. The transfer device, such as the transfer carriage, is preferably movable below the track outlet 15.

Preferably, the emptying path from the emptying site leads to a pulper, which preferably comprises a pulley of the retractor.

Preferably, the emptying site and the retractor are each provided with a separate emptying or sinking path to guide the fibrous web to be pulverized into the pulper.

According to another aspect of the invention, there is provided a method of winding a fibrous web, comprising a winding cylinder for winding the fibrous web around a first winding axis to machine roll in the winding region of the winder co. The method involves emptying the fibrous web from one another

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i m from the rewind axis at the unloading position arranged on the rewinder to x in the process order before starting the rewinder for the first

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the reel shaft.

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Preferably, the fibrous web web entering the reel is guided above the discharge site.

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Preferably, the fibrous web is discharged from the second winding shaft at the unloading position and the fibrous web entering the reel winder is wound around the first winding shaft to form a machine roll. You can do these steps at the same time.

Preferably, the fibrous web is discharged from the second winding shaft at the discharge site and the fibrous web guided to the reel is guided through the reel to the pulper of the reel. You can do these steps at the same time.

Preferably, the fibrous web guided to the rewinder is guided through the rewinder 10 to the pulp of the rewinder along a first discharge path, and from the second winding axis, the fibrous web is discharged from the discharge site through a second discharge path.

Preferably, the fibrous web to be discharged from the second winding shaft is guided from the 15 discharge locations to the pulley of the retractor.

At the unloading position, the discharged winding shaft may be stored in a reel store depot arranged in the area between the discharge end n and the winding winding area of the winder prior to the point where winding begins on the 20 winding axes.

Preferably, the winding shaft is moved from the winder or from the post-winding fibrous web process step to the unloading site for discharge before the new winding step. Preferably, the winding shaft is moved from the retractor or

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o 25 post-rewinding fiber web process steps to a discharge point οav for storage prior to a new rewind step.

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The emptying of the fibrous web on the spool reel, i.e. the bottom of the machine reel, is possible according to the invention at a discharge point arranged in connection with the reel. The emptying site preferably forms part of the reel store. In this way, emptying the reel reel does not consume the capacity of the C \] winder or other post-reel processor. Thus, a pulper is not necessarily required for a winder or other processing device.

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According to some embodiments of the invention, in situations where the direction of the manufacturing process in the fiber web production line is rotated substantially 180 ° after the reel, relative to the reel process direction prior to 5 winders or finishing machines, the reel roll may be laterally In this case, the transfer lengths of the winding shafts are short. Transfers can be made in a streamlined manner and without consuming winder capacity for emptying reel rolls.

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According to some embodiments of the invention, in situations where the manufacturing process direction is substantially rotated 180 °, the machine roll need not be rotated separately. In this case, there is no need for a separate boom or similar lifting aid such as a roof crane for turning the machine roll.

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With the invention, it is possible to obtain an economic advantage in the form of reduced construction costs. The fiber web production line can be located in a small building. The volume of the building can then be reduced. Preferably, the fiber web production line can be located in a short and / or narrow building 20. Preferably, the fiber web production line can be located in a low and / or lightweight structure for the reel and / or winder.

There is no need to provide a separate pulper for the drainage roll of the reel. An existing pulley o 25 can be used for the discharge site. A common pulper can be provided for the discharge site οό with the retractor. For example, two pulverisation paths may be led to the pulper at the machine level. Preferably, the first paper port is arranged in x process order after the winding cylinder. Preferably the second pulper orifice is

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arranged in a process order before the reeling cylinder. Preferably, the fibrous web to be sheared is introduced into the pulper through a pulley orifice o arranged in connection with the machine plane. Preferably, the pulper orifice is provided with a closure and an opening

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Crane usage can be reduced in reel roll and machine reel traffic. Safety in reel roll and machine reel traffic can be increased because high and high lifts can be avoided, for example due to the low position of the reel roll stock. In addition, manufacturing cost savings can be achieved such that in addition to a wet head gantry crane, it is not necessary to have a gantry crane of its own to move the empty winding shafts. In this case, it is advantageous to increase the capacity of the wet end of the fibrous web production line to perform lifting work also in the dry end area of the winder, since in many cases this overhead crane would otherwise be idle for 10 Alternatively, it is possible to limit the operating range of the wet head hall crane away from the winder area, whereby the dry end including the winder area may be formed of a more cost-effective lightweight structure and equipped with cheaper and lighter lifting equipment.

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Inexpensive and reliable transport trolleys with, for example, fixed power lines which run on a direct route can be used as reel roll transfer carts. In addition, for example, lamella conveyors can be used as transfer conveyors for empty and emptying reel spools.

20 The arrangement and method provides better control of the paper shredder in the reel headings and breaks, and less paper shredding and cleaning when the reel direction in the reel is above the machine reel.

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Various embodiments of the present invention will be described or described only in connection with one or more aspects of the invention. One skilled in the art will recognize that any embodiment of an aspect of the invention may be applied to the same aspect of the invention and other aspects alone or in combination with other embodiments.

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o BRIEF PRESENTATION OF THE PATTERNS

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The invention will now be described, by way of example, with reference to the accompanying drawings, in which: - Figure 1 schematically illustrates a lateral arrangement of a reel with an unloading position beneath a fibrous web web for a side reel reel; the machine roll reeling is in progress and the finished machine roll is stopped; Fig. 3 shows the reel of Fig. 1 when the reel on the reel roll is emptied at the emptying position during the reeling of the pulper; Fig. 4 shows the reel of Fig. 1 when the reel roll 10 discharged at the unloading position is waiting to be reeled in during reeling;

Fig. 5 is a schematic top view of the retractor of Fig. 1 and a way of providing reel roll traffic to a discharge location; Fig. 6 is a schematic top view of the retractor of Figs. 1 to 5 and a winder arrangement; and Fig. 7 shows the reel of Fig. 1 when the reel on the reel reel is discharged at the emptying site to the pulper and simultaneously the fiber web fed to the reel is guided through the reel to the pulper.

DETAILED EXPLANATION

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In the following description, like reference numerals refer to like parts. It is to be noted that the figures shown are not to scale in their entirety, and that they serve merely the purpose of illustrating embodiments of the invention.

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cb Figures 1-4 illustrate an arrangement with a retractor 1. The retractor 1 winds a fibrous web W made of a fibrous web machine 30 (Figs. 5 and 6) with a reeling cylinder 4 x a machine reel 3, a reel spool 2, a reel spindle 2

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about. The web guiding of the fibrous web W to the rewinder 1 is arranged through guide rolls 510 to 30 for the winding cylinder 4. The spool roll storage 7 is arranged for the rewinder 10 preferably at a point before the winding cylinder 4, and machine rolls 3 are completed

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in the retractor at position 1 after the reeling cylinder. In other words, the machine rolls 3 are produced on one side of the winding cylinder 4 like a reel store 7.

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The reel roll storage 7 is arranged on the reel winder 1, preferably at a point preceding the reel reel area. Preferably, in the reel roll store 7, the reel rolls 2 are arranged on transfer rails 6. The track exit is arranged along the route above the reel store 7. The winding cylinder 4 acts as a nip roll which 5 presses the fiber web W towards the reel roll 2, which formed rolls of fiber webs and the reel roll 2 are called machine rolls 3. Of course, the arrangement can also be applied in conjunction with a reel of 10 calenders or coating machines or other fibrous web processing equipment.

In the post-winding process steps, the fully or partially emptied reels 2 are moved back to the reel 1. Preferably, the reel rolls 2 15 are moved from the point after the reel 1 to the point before the reel. Advantageously, the transfer of the reel rolls 2 to the reel store 7 below the reel-fed fibrous web W is preferably carried out by a lateral displacement movement of the reel store 7 below the reel web W. According to another embodiment, the transfer 20 to the spool roll storage 7 below the fibrous web web W may be effected by a downward movement, for example from below the machine plane. Preferably, the height position of the reel rolls 2, i.e. the height of the transfer path, does not substantially change during one or more transfer steps.

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o 25 The reel roller 2 can be moved by the floor or by a transport device on οό structures supported on the floor. One preferred transfer device is a cp to reel roll transfer carriage, which may be adapted to run on wheels, x on rails or on air cushions. One possible transfer device is

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a conveyor suitable for moving reel rolls, for example a lamella conveyor.

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o The arrangement makes it possible to take advantage of the C \ | provided in the reel pulper 10 for emptying the fibrous web to be shattered on spool rolls 2. Wrecking can occur during winding without consuming the capacity of 10 winders. This may avoid providing a separate pulper and / or drainage site elsewhere in the dry head region, e.g. In this case, for example, the capacity of the unroller in the winder is not consumed. An emptying nozzle 8 is provided for the reel roller 1 for the reel rolls 2 in a position prior to the reel roller 4, preferably in connection with the reel roll store 7, and That is, the machine rolls 3 are produced on one side of the winding cylinder 4 as the discharge station 8. Preferably, the discharge station 8 has reel rolls 2 arranged on transfer rails 6. 10

1-4 illustrate some preferred ways of emptying a reel roll 2 15 by a reel-up roller 1. The fibrous web W2 to be crushed can be discharged from the reel roll 2 at an unloading position 8 disposed below the web web W. Preferably, the drainage site 8 is arranged in a process sequence upstream of the rewinding region of the rewinder 1. Preferably, the emptying position 8 is arranged in a process sequence prior to the reel roll 4 of the reel 20. An existing pulley 10 of the retractor 1 may be used for the discharge space 8. A common pulper 10 may be provided with the retractor 10 for the discharge location 8. From the drainage site 8, the wrecking route 9 leads to the pulper. Preferably, pulper 10 is pulper 10 of retractor 1, and the wrecking path 9 preferably passes through pulper orifice 11. The pulverulent opening 11 is preferably arranged at the machine plane. Preferably, a pulper door (not shown) is disposed adjacent to the pulper port 11. The pulley door can be closed for safety reasons.

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For example, the roller drive at unloading position 8 may be operated with a rubber wheel drive, for example, which acts on the reel roll or the reelable fiber web on the reel roll. For unwinding at the discharge position 8 can be used

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also with switch for 2 rotary drives to be connected to the reel reel. The reel roller 8 11 can also be disassembled into the pulper at the emptying site by hand slipping or by other means known per se.

Fig. 1 schematically illustrates a side arrangement with a retractor 1. An abutment location 8 is provided below the fibrous web web W for the reel roll 2 in connection with the retractor 1. The emptying position 8 is preferably arranged in a position prior to being rewound. The emptying site 8 may be located in connection with the machine roll storage, for example, so that emptying occurs on transfer rails 6. In some embodiments, emptying may also occur optionally from the reel conveyor transfer device 10, whereupon the emptying reel reel located on the transfer device is rotated. The retracting reel 1 has begun to form a machine reel by winding a fibrous web around a reel core 2 which acts as a reel core and is moved from a reel stock depot 7. The winding of the machine reel 3 is done from above. In Figure 1, the fibrous web is guided to a machine roll 3 from below the winding cylinder 4. Fig. 1 illustrates a situation in which the web fed to the machine roll 3 to be completed is cut off and the end of the web is introduced from the closed nip between the empty reel roll 2 and the winding cylinder 4 to the reel roll 2. for the suction zone of the reeling cylinder. If necessary, the winding cylinder 4 is provided with a pattern, for example in the suction zone. 20 If necessary, scraping roller 2 is provided. Scraping can be used, for example, to control the web, e.g. a reel for controlling the web to be wound to be fed to pulper 10. Known machine roll change arrangements operating in the presented rewind arrangement, e.g. water exchange device with adhesive or tape length. A first rotation drive 12 is connected to the spool roller 2. A second rotation drive 13 is connected to the reel core 2 of the machine roller 3.

i m The reel spool 2 and the reel drum 4 are rotated. After cutting the web x, the machine roll 3 is moved on the transfer rails 6 away from the winding cylinder 4 and the machine roll

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3 slow down.

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o Moving machine roll 3 during reeling can be accomplished with one arm (no

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shown in the figures) at each end of a reel core 2 serving as a reeling core. Preferably, the arms are attached to the machine reel 3 throughout the reeling.

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In Figure 2, the reel reel 1 is in the process of reeling a new machine reel 3 and the finished reel 3 is braked to a stop. During the winding, the machine roll 3 is moved on the transfer rails 6 from the position preceding the winding cylinder 4 to the position after the winding cylinder 4. The machine roll 3 is moved from below the winding cylinder 4 in a nip contact to the winding cylinder 4. The winding cylinder 4 can also be moved upward while the machine roll 3 is moved forward.

In Figure 3, a debrisable reel roll 2 is moved to a discharge space 8. The growth of the machine roll 3 can be compensated by moving the machine roll 3 forward on the transfer rails 6. The growth of the machine roll 3 can be compensated by moving the winding cylinder 4 upwards. For emptying, for example, one of the aforementioned 15 first rotary drives 12 or a second rotary drive 13 which has been released from the rotation of a full machine roll 3 may be connected to the reel reel 2. Optionally, a fourth drive (not shown) which is reserved for emptying can be connected to the reel roll 2.

In Fig. 4, at the unloading position 8, the emptied reel reel 2 is stopped and 20 waits for the reel reel store 7 to complete reeling during reeling. The growth of the machine roll 3 in the fastening winding can be compensated by moving the machine roll 3 forward on the transfer rails 6. The growth of the machine roll 3 can be compensated by moving the winding cylinder 4 upwards. For example, two paths 9 at the machine level can lead to pulper 10. Preferably, the first pulper orifice 11 is disposed o 25 in process order after the winding cylinder 4. The first pulper orifice 11 οό can be used to shred the web from the rewinder 1 when the web is not wound onto the machine reel. Preferably, the second pulper orifice 11 'is arranged in x process order prior to the winding cylinder 4. The second pulper orifice 11'

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can be used to shake the web from the discharge site 8. Preferably, the fibrous web to be shaken is led to the pulper through a pulley orifice o arranged in connection with the machine plane. The pulper 10 may be led to two or more messing paths 9, preferably

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machine level.

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Fig. 5 schematically shows a top view of a reel 1 and a way of arranging sideways traffic of reel rolls 2, for example, with a transfer trolley 60 to a depot 8. The area of the depot 8 is shown by a dashed line on transfer rails 6 for delivery. The pulper orifice 1T comprising the emptying site 8, which leads to the pulper 10, may be located at least partially in the region between the transfer rails. Rotation of the reel roll 2 may take place from the transfer rails 6 or optionally from the transfer carriage 60.

Figure 6 schematically shows a top winder 1 and a winder to which the machine rolls 3 are moved after the winder 1 for processing. After winding, the machine rolls 3 are moved to a pick-up station 15 on transfer rails 6, from where the machine rolls 3 are further transferred to wait position 16 of the winder 20 on transfer rails 6 'or into the machine roll storage or finishing machine shown. Advantageously, a floor-supported transfer arrangement 50 is used to move the heavy machine rollers 3 with respect to the paper machine 30 and the machine line formed by the retractor 10, e.g. described in more detail. The winder 20 is disposed adjacent the machine line with the process direction reversed in the opposite direction to the machine line, i.e. the process direction is rotated 180 °. The traffic of the unwound reel reels 2 is guided from the winder 20 forward, for example, after the winding and winding station 22, through the pick-up station 17 provided on the transfer rails 6 '. The reel rolls 2 can be retrieved from the pick-up station 17c to a reel roll conveyor such as a transport trolley 60 and returned by a transport trolley i m 60 to a reel store 7 below the fiber web web W fed to the reel 1.

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The reel rolls 2 may be discharged at the discharge location 8 from the transfer device 60 and / or the transfer rails 6 of the reel store depot 7.

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In Fig. 7, the fibrous web W is guided from the reel winder 1, preferably through a reel nip between the reel reel roller 4 and the reel roller 2, to the pulper 10 14 as a waste W1 along the first sinking path. Preferably, at the same time, the debris roll 2 at the discharge site 8 is discharged to the pulverizer W2 via a second messenger path The first and second mess paths lead to the same pulper in Figure 7, but may also lead to different pulpers. Thus, a separate pulper (not shown in the figures) may be provided for the discharge location 8, separate from the pulley of the retractor.

The foregoing description provides non-limiting examples of some embodiments of the invention. However, it will be apparent to one skilled in the art that the invention is not limited to the details set forth, but that the invention may be practiced in other equivalent ways. Some features of the embodiments shown may be utilized without the use of other features.

The foregoing description is to be construed as merely describing the principles of the invention and not limiting the invention. Thus, the scope of the invention is limited only by the appended claims.

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Claims (15)

An arrangement of a fiber web reel assembly (1), comprising a reel cylinder (4) for rolling a fiber web (W) into a machine reel (3) on a first reel shaft (2) in the reel region (1) of a reel assembly (1), characterized in in that a reeling area (8) for unrolling a fiber web (W2) from a second rolling shaft (2) is arranged in the reel device (1), at a point in front of the reel area of the reel device. 10 Arrangement according to claim 1, characterized in that the discharge location (8) is arranged below the web guide for the fiber web (W) entering the reel device (1). 3. Arrangement according to claim 1 or 2, characterized in that the discharge location (8) is arranged in connection with a rolling shaft bearing (7) which is placed before the reeling area of the reeling device. 4. Arrangement according to claim 3, characterized in that the discharge location (8) is arranged in connection with the displacement rails (6) for the rolling shafts which are in the rolling shaft bearing (7). Arrangement according to claim 4, characterized in that the discharge location (8) is arranged at the end of the relocation rails (6). CM o 25 (M Arrangement according to any one of the preceding claims 1 - 5, characterized in that the discharge location (8) comprises a displacement device (60) x intended for the rolling shafts (60) as the discharge location for the second rolling shaft CL (2) · c Arrangement according to any one of the preceding claims 1 - 6, characterized in that from the discharge site (8) a discharge path leads to a pulper, which is preferably the pulley device (10). A method of a fiber web reel assembly (1) comprising a reel cylinder (4) for rolling a fiber web (W) into a machine reel (3) on a first reel shaft (2) in the reel region of the reel device, characterized in that the method is unwound a fiber web (W2) from a second rolling shaft (2) at a discharge location (8) arranged in the reeling device (1), at a point which precedes the start of reeling on the first rolling shaft (2). 10 Method according to Claim 8, characterized in that the fiber web (W) entering the winding device (1) is guided above the discharge location (8). Method according to Claim 8 or 9, characterized in that the fiber web (W2) is unwound from the second rolling shaft (2) at the discharge location (8) and rolls the fiber web (W) received into a machine roller (3). on the first rolling shaft (2). Method according to claim 8 or 9, characterized in that the fiber web (W2) is unwound from the second rolling shaft (2) at the discharge location (8) and leads the fiber web (W) guided to a pulper (10). through (W1) the retractor (1). Method according to any of the preceding claims 8 - 11, CM and characterized in that the fiber web co (W2) unwound from the second rolling shaft (2) is guided from the discharge location (8) to the pulley (10) of the reeling device. in LO x Method according to any of the preceding claims 8-12, characterized in that the guide path (W) is guided to the unwinding device (1) to the pulper (10) along a first discharge path through (W1) and the rewinding device (1). ) and unrolls the fiber web (W2) from the second rolling shaft (2) at the discharge location (8) along a second discharge path. Method according to any of the preceding claims 8-13, characterized in that the rolling shaft (2) emptied at the discharge location (8) is stored in a tambour selection bearing (7) between the discharge location (8) and the reeling area (1) of the rolling location (8). 5 Method according to any of the preceding claims 8-14, characterized in that the rolling shaft (2) is moved before a new winding period from the winding device (1), or a fiber web process step following the winding, to the discharge location (8) for emptying and / or stored. 10 C \ J δ (M co o tn X and CL δ (M CD O) O o (M