Assembly for handling a reel and a reel unwinding device for a fibrous web machine

Abstract

The invention relates to an assembly (10) for handling reels, comprising linear support tracks (12) arranged parallel to each other, having a first end (12.1) and a second end (12.2), and a reel cart (20) arranged on the support tracks (12), the support tracks (12) being arranged at a first distance (D1) from each other, the first distance being greater than the axial length of the reel (1), the cart (20) being provided with a hoisting device (208) configured to hoist the reel (1) vertically from below at least one of the support tracks (12) at least partially above the at least one of the support tracks (12). The invention also relates to a winding- unwinding device (100) comprising an assembly (10) for handling reels.

Description

Technical Field

[0001] The present invention relates to an assembly for handling reel spools and a reel-up and unwinding device for a fiber web machine. Background Technology

[0002] A reel-up section (paper reel) is used to wind material, which passes as a continuous web, into a tight reel, allowing it to be transferred to further processing. For example, in a paper web reel, a continuous paper web passing from a paper machine, coating machine, or corresponding paper processing equipment is wound around a reeling spool to form a reel. The web is brought onto the reel via a reeling cylinder, which is arranged to be rotatable, and the reel is pressed against the reeling cylinder by means of a loading device associated with the spool. Thus, the web enters the reel, pressing it between the preceding layers of the reel and the mantle surface of the reeling cylinder.

[0003] In a paper production line, the manufacture of fiber webs, such as paper or paperboard, is a continuous process. The fiber webs completed in the paper machine are wound into a master roll around a reeling shaft (i.e., a reel) by a take-up section. This master roll can have a diameter greater than 5 meters and a weight greater than 160 tons. The purpose of winding is to modify the fiber webs, which are being manufactured as continuous sheets, into a more manageable form. At the take-up section located on the main machine line, the continuous process of the paper machine is first interrupted and transitions to periodic operation.

[0004] In papermaking, the master rolls produced are full-width and can be longer than 100 km. Therefore, before delivery from the paper mill, they must be slit into sections of width and length suitable for the paper mill's customers and wound around cores to form what are called customer rolls. This slitting and winding of the web is carried out in a suitable separate machine (i.e., a slitting and winding machine), as is known. On the slitting and winding machine, the master roll is unwound, and the wide web is slit into several narrower sections on the slitting section. These sections are then wound around winding cores, such as spools, to form customer rolls on the winding section. When the customer rolls are complete, the slitting and winding machine stops, and these wound rolls, known as sets, are removed from the machine. The process then continues, winding a new set. These so-called group change steps are repeated periodically until the master roll is empty, thus performing a master roll change, and the operation restarts with the unwinding of a new master roll. The empty spool then returns to the take-up unit. The take-up unit must have a new or empty spool available before the previous spool is full, i.e., the master roll is ready for a change. Typically, multiple empty master rolls are stored in a so-called reel spool storage. There is a reel circulation between the unwinding station of the slitting winder and the take-up unit, where a full roll with a spool is passed to the unwinding station, and an empty spool is returned to the take-up unit. Corresponding reel circulation also occurs, for example, between web production machines and off-line coaters or other web finishing machines.

[0005] Document US5943787A illustrates an example of a winding section according to the prior art. Typically, empty reels are returned to the winding section using an overhead bridge crane in the machine shop. Since a continuous reel return process is actually required, using an overhead bridge crane to return the reels keeps the crane and its operator unused for other purposes, reducing the utilization rate of the overhead crane.

[0006] For example, as disclosed in document WO2010125232A2, it is also known to automatically return empty reels via a winding shaft handling device. This disclosure mentions a return track and the movement of the reel and machine rollers based on a trolley. Summary of the Invention

[0007] The purpose of this invention is to provide a component for processing reels, which significantly improves performance compared to existing solutions.

[0008] The objectives of the present invention can be substantially satisfied through the various embodiments and preferred embodiments described herein and further details thereof.

[0009] An assembly for handling reels includes:

[0010] - A linear support track, having a first end and a second end, arranged parallel to each other.

[0011] - A reel cart, including a transverse bridge, is arranged on support rails.

[0012] - The support rails are arranged so that they are spaced apart by a first distance, which is greater than the axial length of the reel.

[0013] - The cart is equipped with a hoisting device, among which,

[0014] The hoisting device is configured to vertically hoist the highest point of the reel from below at least one of the support rails to above at least partially above the at least one of the support rails, and the reel trolley is provided at both ends with lay-down supports for the reel, wherein the lay-down supports are provided with drives that enable the lay-down supports to move below the support housing of the reel after the reel has been raised to a vertical position above the lay-down supports.

[0015] Preferably, the lifting device is configured to vertically lift the highest point of the reel from below at least one of the support rails to above at least the lowest point of the transverse bridge.

[0016] This allows for the transfer of reels without the use of bridge cranes in machine shops, and makes the operation of master reels and empty reels much smoother.

[0017] In practice, the dimensions of the components used to handle the reels are designed individually for each practical application, such that at least the distance between the support rails is greater than the length of the reel in use or to be used.

[0018] According to an embodiment of the invention, the lifting device is configured to vertically lift the reel, at least partially above the bridge of the reel trolley. This results in only a moderate amount of vertical space required to return or move the reel, while leaving more room for other procedures, such as machine operation.

[0019] According to an embodiment of the invention, the trolley is provided with a locking device configured to prevent movement of the hoisted reel relative to the trolley, at least in the longitudinal direction of the support rail (12). This ensures safe and precise reel transfer and prevents possible swaying of the reel.

[0020] According to an embodiment of the invention, the trolley is provided with a locking device configured to prevent rotation of the reel. This prevents accidental unwinding of the reel bottom (reel bottom, roll end, paper roll beginning). The locking device is configured to releasably lock the reel to the trolley.

[0021] According to an embodiment of the invention, the lifting device is configured to lay the roll down on the support. This allows, for example, the unwinding of the roll's bottom portion to be performed.

[0022] According to an embodiment of the invention, the trolley is provided at both ends with laying supports for the reel, the laying supports being configured to support the reel from the support housing at both ends of the reel.

[0023] According to an embodiment of the invention, the trolley is equipped with a rotor configured as a rotating spool. This allows, for example, the unwinding of the bottom of the spool to be performed.

[0024] According to an embodiment of the invention, the trolley is provided with laying supports for the reel at both ends, and the trolley is provided with rotors configured to rotate the reel. Thus, for example, this assembly can be used to unwind the bottom of the reel in a controlled manner.

[0025] According to an embodiment of the invention, the spool rotor is configured as a clutch part that transmits force to the end of the spool.

[0026] According to an embodiment of the invention, the laying support is arranged to be movable in the longitudinal direction of the trolley so that, when lifted by a lifting device, the laying support is positioned at a first position below the support housing of the reel and at a second position beyond the length of the reel. This facilitates lifting the reel in the trolley above the bridge and also securely supports the reel in the trolley.

[0027] According to an embodiment of the invention, the laying support is configured to move by rotational movement to a first position below the support housing of the reel, and also by rotational movement to a second position beyond the length of the reel. This facilitates lifting the reel in the trolley above the bridge and also securely supports the reel in the trolley. The movement of the laying support may also include a combination of rotational and translational movements.

[0028] According to an embodiment of the invention, the trolley includes two bridges extending between support rails, and a lifting device configured to lift a reel between the bridges.

[0029] According to an embodiment of the invention, the component includes a dedicated support structure beneath the two support rails.

[0030] According to an embodiment of the invention, the lifting device includes hook hoists at both ends of the trolley, which are configured to lift the reel from its shaft.

[0031] A take-up-unwinding device for a fiber web machine includes a take-up station at a first end of the device and an unwinding station at a second end of the device. The take-up station is configured to produce a master roll from running web on a spool supported at its end by a support housing. The unwinding station is configured to controllably unwind the web from the master roll produced in the take-up station. The take-up-unwinding device includes an assembly for handling the spool, the assembly comprising:

[0032] - A linear support track, having a first end and a second end, arranged parallel to each other.

[0033] - A reel trolley, positioned on support rails.

[0034] - The support rails are arranged so that they are spaced apart by a first distance, which is greater than the axial length of the reel.

[0035] - The trolley is equipped with a lifting device configured to vertically lift the reel from below at least one of the support rails to at least partially above the at least one of the support rails.

[0036] The component for handling the reel is configured to operate between the take-up station and the unwinding station.

[0037] According to an embodiment of the invention, the assembly of the spool in the take-up-unwind device for processing a fiber web machine is configured to return an empty spool from the unwinding station to the take-up station.

[0038] According to an embodiment of the invention, the device includes parallel transfer tracks between a winding station and a dewinding station for transferring a master roll from the winding station to the dewinding station. The transfer tracks are arranged to be spaced apart from each other by a second distance, which is less than a first distance between the support tracks.

[0039] According to an embodiment of the present invention, the support rail is arranged vertically above the transfer rail, wherein the vertical distance between the support plane of the transfer rail and the support rail is configured such that a gap of less than 200 mm is formed between the full roll supported by the transfer rail and the empty roll supported by the trolley on the support rail.

[0040] According to an embodiment of the present invention, the vertical distance between the support planes of the transfer track and the support track is configured such that a gap of 20 mm to 200 mm is formed between the full roll supported by the transfer track and the empty roll supported by the trolley on the support track.

[0041] According to an embodiment of the present invention, the support rail is arranged vertically above the transfer rail, wherein the vertical distance between the support plane of the transfer rail and the support rail is 1000mm to 3000mm.

[0042] According to an embodiment of the invention, the locking device includes at least one of a mechanical stop, a reel, and a hook of a lifting device that moves against the mechanical stop to lock the reel relative to the trolley.

[0043] The exemplary embodiments of the invention presented in this patent application should not be construed as limiting the scope of protection. The verb "comprising" is used in this patent application with an open-ended limitation, which does not exclude the presence of other features not described. Unless otherwise expressly stated, the features described herein can be freely combined with each other. Attached Figure Description

[0044] The invention will now be described with reference to the accompanying exemplary schematic diagrams, in which:

[0045] Figure 1 An assembly for processing a reel according to an embodiment of the present invention is shown.

[0046] Figure 2 It shows Figure 1 The end view of the component used to handle the scroll.

[0047] Figure 3 It shows Figure 1 A magnified view of detail A in the image.

[0048] Figure 4 It shows Figure 2 A magnified view of detail B in the image.

[0049] Figure 5 A take-up-unwinding apparatus for fiber webs according to embodiments of the present invention is shown.

[0050] Figure 6 An assembly for processing a reel according to another embodiment of the present invention is shown.

[0051] Figure 7 An assembly for processing a reel is shown according to yet another embodiment of the present invention, and

[0052] Figure 8 A take-up-unwind device for fiber webs according to an embodiment of the present invention is shown. Detailed Implementation

[0053] Figure 1 and Figure 2 The component 10 for handling the scroll 1 is schematically depicted. Figure 1A side view of the component is shown. Figure 2 The component is shown as viewed from its end. The following description refers to... Figures 1 to 4 As is known in the field of manufacturing paper and / or paperboard, such as fiber webs, spools are used to continuously wind fiber webs and temporarily store the fiber webs before they are unwound from the spool. An assembly 10 for handling the spool 1 includes linearly, horizontally arranged support rails 12, more specifically two parallel rails 12. Each rail 12 has a first end 12.1 and a second end 12.2, which define the operating area of ​​the assembly 10 in the so-called machine direction. More specifically, the assembly is configured to allow the spool to move between predetermined roll handling stations S1…Sn in a direction transverse to the longitudinal direction of the spool 1. These predetermined roll handling stations (such as unwinding station S1 and winding station S2 or roll storage device S3) are arranged at different locations within the operating area of ​​the assembly in the machine direction. The roll handling stations S1…Sn are arranged between rails 12.1, 12.2, and between the first end 12.1 and the second end 12.2 of each rail. The track 12 is supported by columns 14 extending vertically from, for example, a suitable foundation 13. This foundation can be, for example, a building floor or concrete columns. The support structure formed by the columns 14 is advantageously a support structure specifically designed for this component. Figure 1 The trajectory line 16 is shown, with corresponding arrows indicating possible directions of movement for the reel 1: machine-direction forward (MDF); machine-direction backward (MDB); upward (U); downward (D). This provides versatile ways of handling the reel, whether as an empty reel or as a reel with a roll bottom still wound on it. Advantageously, the assembly is sized to transport only the reel, optionally with a small amount of unwound web on it. This minimizes the physical dimensions and allows for easier connection and assembly between the take-up unit and the unwinder (along the machine direction).

[0054] The component includes a reel trolley 20 supported at the end of the trolley 20 by rails 12.1, 12.2, such as Figure 2 As shown. Only one trolley 20 is needed to operate this assembly. The reel has a cylindrical body 1.2, at its end having a shaft 1.4. The shaft is provided with a support housing 1.6, which is connected to the shaft by suitable bearings. The shaft extends axially through the support housing 1.6, and a clutch component 1.8 is provided at the end of the shaft 1.4 for rotating the reel when it is placed on the support housing. Figure 2As can be seen, the support tracks 12.1 and 12.2 are arranged with a distance D1 between them, which can be called the first distance. The first distance is greater than the axial length of the spool 1, so that the spool can be horizontally raised above the tracks 12.1 and 12.2 and lowered below the tracks.

[0055] The reel trolley 20 includes carrier parts 202 at both ends for connecting the trolley 20 to the track 12. The carrier parts 202 are provided with means 204 for moving the trolley along the track 12. The means for providing traction may include suitable wheels 204 and a suitable motor or drive for controllably moving the trolley 20 back and forth in the machine direction. The trolley 20 also includes transverse bridges 206, preferably two parallel bridges 206 at substantially the same horizontal level, extending between the carrier parts 202 on opposite sides of the assembly. Supported by the bridges 206 are lifting devices 208 respectively arranged at both ends of the bridges 206. Within the scope of the invention, it is conceivable to design the trolley using only one bridge, in which case the lifting operation is performed on one side of the single bridge. The lifting devices 208 are immovably attached to the trolley such that the distance between the lifting devices is suitable for the reel in use or awaiting use. The lifting device 208 is equipped with a hook-type lifting mechanism 210, which is configured to grip the reel 1 from the shaft 1.4 near the support housing 1.6. This prevents the reel from rotating while being lifted by the hook. The lifting device 208 is configured to vertically lift the reel 1 from below the support rails 12.1, 12.2 to at least partially above the support rails. Alternatively, if more vertical space is required, the lifting device 208 is configured to vertically lift the reel 1 to at least partially above the bridge of the trolley. Advantageously, the hook is configured to remain in the same position regardless of whether it is under load or not (i.e., the reel).

[0056] Locking device 212 is arranged in the component, for clarity, in Figure 3 Only the locking device 212 is shown. More specifically, the locking device is arranged in the lifting device 208 of the trolley, thereby preventing movement of the lifting reel 1 relative to the trolley 20, at least in the longitudinal direction of the support rail 12. This prevents possible swaying of the reel caused by the acceleration of the trolley during the start and stop of the trolley's transmission movement. The locking device 212 includes one or more mechanical stops, such as... Figure 3 As shown, the hook 210 of the reel 1 and / or lifting device 208 moves from below the locking device against the mechanical stop when the (reel) is lifted by the hook, in order to lock the reel 1. Alternatively, the locking device may be provided with an actuator or the like, which can move against the reel when it is in a suitable position in the trolley.

[0057] As shown in the figure, the assembly may include a reel rotor 211. The rotor 211 controls the rotation of the reel 1, i.e., prevents accidental rotation of the reel or allows controlled rotation of the reel. The rotor 211 is arranged to engage with the shaft 1.4, or with a clutch component 1.8 at the end of the shaft 1.4. The rotor 211 may include a rotatable wheel with a drive 213, arranged to engage or disengage from the reel 1. The rotor 211 can also function as a locking device, in which case the trolley does not need a separate locking device as described in the preceding paragraphs. In other words, the assembly may have a combined locking device and rotor.

[0058] The trolley 20 is provided with a laying support 214 for the reel 1. The laying support is arranged to connect with the bridge 206 of the trolley 20 and is movable in a guided manner along the longitudinal direction of the bridge 206. The laying support 214 is provided with a drive 216, advantageously a linear drive, by which the laying support 214 can be moved below the support housing 1.6 of the reel 1 after the reel has been lifted to a vertical position above the laying support 214. In other words, the laying support 214 is movably arranged in the longitudinal direction of the trolley 20 so that, when lifted by the lifting device 208, the laying support is positioned at a first position below the support housing 1.6 of the reel 1 and a second position beyond the length of the reel 1. The drive 216 may be, for example, a hydraulic cylinder or a worm gear. The laying support is attached to the bridge by one or more suitable guides so that it can be moved linearly by the drive 216. The bottom of the reel can be unwound from the reel 1 while the reel is supported by the trolley 20 at its support housing. Rotor 211 is used to unwind the bottom of the coil.

[0059] Figure 1 and Figure 2 A pair of transfer tracks 500 are shown below support tracks 12.1 and 12.2. Support tracks 12.1 and 12.2 are arranged apart from each other by a distance D1, which may be referred to as the first distance. The transfer tracks are arranged parallel to each other and have a distance D2, which may be referred to as the second distance. The second distance D2 is smaller than the first distance D1.

[0060] When scroll 1 is moved through this component, the following steps are performed:

[0061] 1. Drive the trolley above the scroll.

[0062] 2. The hooks of the lifting device are lowered, and the hooks and / or trolleys are controlled such that the hooks engage with the reel at both ends of the reel from the neck of the reel adjacent to the reel body.

[0063] 3. The reel is lifted by a hoisting device to be at least partially above at least one of the support rails of the assembly.

[0064] 4. As an optional but preferred measure, the reel is locked to the trolley to prevent it from swaying.

[0065] 5. Move the trolley to the new desired position on the reel.

[0066] 6. If the scroll was locked according to step 4, the scroll will be unlocked.

[0067] 7. By lowering the hook of the lifting device and controlling the hook and / or trolley to disengage the hook from the reel, the reel is lowered to a new desired position.

[0068] Now transferred to Figure 5 The invention discloses a take-up-unwinding apparatus 100 for a fiber web machine, showing several web processing stations, such as a take-up station S2, within the operating area of ​​an assembly 10 for processing webs. The take-up station S2 is configured to produce a so-called machine roll from a continuously running web W on a spool 1. An unwinding station S1 is also provided, configured to controllably unwind the web from the master roll produced in the take-up station. Unwinding of the web may involve, for example, a web finishing section, such as an offline coating machine. The take-up station and the unwinding station are located within the operating area of ​​the apparatus 10, which is configured to operate between the take-up station and the unwinding station. Therefore, the assembly 10 for processing the web 1 is arranged to connect to the take-up-unwinding apparatus 100, and is configured, for example, to return an empty web from the unwinding station to the take-up station. The assembly for processing the web 1 in the take-up-unwinding apparatus 100 can be implemented according to any of the embodiments of the assembly 10 described in this application.

[0069] In the take-up-unwind device 100 according to the invention, the take-up station S2 and the unwind station S1 are interconnected by a pair of transfer tracks 500, which are configured to support a complete machine roll and transfer it from the take-up station S2 to the unwind station S1. Figure 2 As shown, the transfer tracks 500 are arranged parallel to each other and have a distance D2 between them. The transfer tracks 500 are vertically positioned below the support tracks 12.1, 12.2 of the assembly 10 for handling the reels. Although Figure 2 Neither the winding station nor the unwinding station is shown, but the transfer tracks are similar, and in the winding-unwinding device 100, the support tracks 12.1 and 12.2 are also arranged to be a distance D1 apart from each other, which can be referred to as the first distance. The transfer tracks 500 are arranged to be parallel to each other and have a distance D2, which can be referred to as the second distance. The second distance D2 is smaller than the first distance D1.

[0070] The support rail 12 is arranged vertically above the transfer rail 500, wherein the vertical distance between the transfer rail 500 and the support plane of the support rail 12 (on which the spool is supported) is configured such that a gap G of less than 200 mm is formed between the surface of the full spool (full master spool) supported by the transfer rail 500 and the empty spool 1 supported by the trolley 20 on the support rail 12.

[0071] The vertical distance between the transfer track 500 and the support plane of the support track 12 is configured such that a gap of 20mm to 200mm is formed between the full roll 1 supported by the transfer track and the empty roll 1 supported by the trolley 20 on the support track. In most practical applications, the vertical distance between the transfer track and the support plane of the support track is 1000mm to 3000mm.

[0072] from Figure 5 As can be clearly seen, the transfer track 500 extends backward along the machine direction through the take-up station S2, forming the reel storage station S3. Correspondingly, the first end 12.1 of the track 12 in assembly 10 is arranged along the machine direction before the take-up station S2 to extend into the reel storage station S3. In this way, the empty reel 1 can be returned from the unwinding station S1 to the reel storage station S3.

[0073] Accordingly, the transfer track 500 extends forward MDF along the machine direction past the unwinding station S1 to form the reel storage station S3. Correspondingly, the second end 12.2 of the track 12 in assembly 10 is arranged to extend along the machine direction after the unwinding station S1. Station Sn can refer to a station used to unwind the bottom of the roll on the reel to, for example, a pulper or waste paper conveyor BC after the unwinding process. The station Sn for unwinding the bottom of the roll can be chosen substantially freely, and the emptying of the reel can even be completed at a location adjacent to a full master roll on the transfer track 500 (such as between two master rolls). Figure 5 The image depicts the bottom of the unwound roll adjacent to the master roll, with the trolley 20' located next to the winding station S2. The roll is lowered to the laying support, and the web travels to the pulper or waste conveyor BC of the winding station S2.

[0074] Typically, a method for unwinding the bottom of a roll in assembly 10 for handling a spool includes the following steps:

[0075] 1. Drive the trolley above the spool at the bottom of the roll.

[0076] 2. The hook of the lifting device is lowered, and the hook and / or trolley are controlled such that the hook engages with the reel at the neck next to the reel body.

[0077] 3. The reel is lifted by a hoisting device to a position at least partially above at least one of the support rails of the assembly.

[0078] 4. The trolley is driven along the machine direction to a suitable position above the pulper or waste paper conveyor.

[0079] 5. The reel is lowered onto the laying support so that it can rotate while being supported by the trolley, and the hook disengages from the reel.

[0080] 6. Rotate the spool by operating the rotor of the component, thereby unwinding the bottom of the spool.

[0081] exist Figure 8 In the middle, a method for Figure 5 A take-up-unwinding device 100 for a fiber web machine discloses a method for unwinding the bottom of the roll on the spool to another station Sn, such as a pulper or waste paper conveyor BC, after the unwinding process. Figure 8 In the middle, the unwinding of the bottom of the roll is performed near the unwinding station S1 to empty the web W into the pulper of the unwinding station. Figure 8 and Figure 5 The combination discloses that unwinding of the roll bottom can be completed at a desired location between the unwinding station S1 and the winding station S2 to reach any pulper or waste paper conveyor of the winding-unwinding device 100. Unwinding of the roll bottom can also be performed at any other location, such as on the floor of the machine shop. The full master roll can also be moved.

[0082] Most advantageously, the bottom of the roll is emptied into the pulper at the unwinding station S1 in the manner described below:

[0083] 1. At the unwinding station, drive the trolley above the spool containing the bottom of the roll.

[0084] 2. The hook of the lifting device is lowered, and the hook and / or trolley are controlled such that the hook engages with the reel at the neck next to the reel body.

[0085] 3. The reel is lifted from the unwinding station by a hoisting device.

[0086] 4. Bring the full winding coil to the unwinding station and begin operating the slitting and winding machine.

[0087] 5. When the slitting and winding machine is stopped after the first or second set of changes, the end of the web is guided from the bottom of the roll to the pulper of the slitting and winding machine, advantageously along the surface of the pulper hatch. 6. The roll is unwound from the roll to the pulper or waste paper conveyor by rotating the rotor of the operating assembly.

[0088] 7. You can start preparing the next set of the slitting and winding machine.

[0089] By supporting the reel with a support housing, it is possible to rotate the reel while it is supported by a trolley. This can be achieved in the following way:

[0090] -The reel is lifted from the support housing against the stop in the trolley by hook 210.

[0091] - Lower the reel to the machine's laying support so that it is supported by the support housing.

[0092] - Lower the reel to a movable, mechanical laying support so that it is supported by the support housing.

[0093] exist Figure 5 In this context, the unwinding station S1 is part of the slitting and winding machine 110. Therefore, as a particularly practical application of the take-up-unwinding device, the take-up-unwinding device for a fiber web machine can also be a take-up-slitting and winding machine for a fiber web machine.

[0094] Figure 6 It shows that in other aspects it is similar to Figures 1 to 4 The same embodiment is used, but here the support rail 12 of component 10 is at a different vertical height (level). Thus, for example, the front rail 12 of the component is lower than the rear rail. Here, "front" refers to the winding side of the machine, and "rear" refers to the drive side of the machine. The front rail 12 is advantageously located at floor height for easy access to the take-up / unwinder 100, since a column 14 is not required at the front FS of the take-up / unwinder.

[0095] Figure 7 It shows that in other aspects it is similar to Figures 1 to 4 In the same embodiment, however, the support rail 12 of component 10 is located on the same side of component 10, and the trolley 20 extends from the rear side BS of the component to the front side FS of the component above the take-up / unwinder. The front rail 12 has no component posts 14 and support rail 12, which makes it easy to access the take-up / unwinder 100. The dimensions of the support rail 12 and posts 14 at the rear side BS of the component are designed to suppress stresses and moments caused by component 10. Here, the rails 12 are arranged to overlap (i.e., one rail on top of another), and the upper post 14 is supported at the rear side of the take-up / unwinder to a suitable base 13, located at floor height or higher, such as at a rigid wall of a building.

[0096] Although the invention has been described herein by way of examples relating to what is now considered the most preferred embodiments, it should be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various combinations or modifications of its features, as well as several other applications included within the scope of the invention (as defined in the appended claims). Details mentioned in any of the foregoing embodiments may be used in conjunction with another embodiment where technically feasible.

Claims

1. An assembly (10) for handling reels, comprising: - linear support tracks (12) arranged parallel to each other, having a first end (12.1) and a second end (12.2), - a reel cart (20) arranged on the support tracks (12), comprising a transverse bridge (206), - the support tracks (12) being arranged at a first distance (D1) from each other, the first distance being greater than the axial length of the reel (1), - the cart (20) being provided with a hoisting device (208), characterized in that - the hoisting device is configured to vertically hoist the highest point of the reel (1) from below at least one of the support tracks (12) to at least partially above the at least one of the support tracks (12), - the reel cart (20) is provided with laying supports (214) for the reel (1) at both ends thereof, wherein the laying supports are provided with drives (216) by means of which the laying supports (214) can be moved below the support housing (1.6) of the reel (1) after the reel (1) has been lifted to a vertical position above the laying supports (214).

2. The assembly (10) for handling a reel according to claim 1, characterized in that, The hoisting device (208) is configured to vertically hoist the highest point of the reel (1) from below at least one of the support tracks (12) to at least above the lowest point of the transverse bridge (206).

3. The assembly (10) for handling a reel according to claim 1 or 2, characterized in that, The cart (20) is provided with a locking device (212) configured to prevent movement of the hoisted reel (1) relative to the cart (20) at least in the longitudinal direction of the support tracks (12).

4. The assembly (10) for handling a reel according to claim 3, characterized in that, The locking device (212) comprises a mechanical stop against which at least one of the reel (1) and a hook (210) of the hoisting device (208) moves to lock the reel (1).

5. The assembly (10) for handling a reel according to any one of claims 1 to 4, characterized in that, The hoisting device (208) is configured to place the reel (1) down on the support.

6. The assembly (10) for handling a reel according to claim 5, characterized in that, The laying supports (214) are configured to support the reel (1) at both ends thereof from the support housing (1.6) of the reel.

7. The assembly (10) for handling a reel according to claim 5 or 6, characterized in that, The laying supports (214) are arranged movable in the longitudinal direction of the cart (20) in order to position the laying supports at a first position below the support housing (1.6) of the reel (1) and at a second position outside the length of the reel (1).

8. The assembly (10) for handling a reel according to any one of claims 1 to 7, characterized in that, The cart (20) is provided with a reel rotor (211).

9. The assembly (10) for handling a reel according to claim 8, characterized in that, The rotor (211) is configured to transmit force to a clutch component at the end of the reel (1).

10. The assembly (10) for handling a reel according to any one of claims 1 to 9, characterized in that, The cart (20) comprises two transverse bridges (206) extending between the support tracks (12), the hoisting device (208) being configured to hoist the reel (1) between the transverse bridges (206).

11. A winding-unwinding device (100) for a fibrous web machine, comprising a winding station (S2) at a first end of the device and an unwinding station (SI) at a second end of the device (100), the winding station (S2) being configured to produce parent reels from a running web on a reel shaft (1) supported at its ends by a support housing (1.6), the unwinding station being configured to controllably unwind a web from a parent reel produced in the winding station, characterized in that, The device comprises an assembly (10) for handling reels according to any one of claims 1 to 10, configured to operate between the winding station (S2) and the unwinding station (S1).

12. The take-up and pay-off device according to claim 11, characterized in that The assembly (10) is configured to return the empty reel (1) from the unwinding station (S1) to the winding station (S2).

13. The take-up and pay-off device according to claim 11, characterized in that The device comprises parallel transit tracks (500) between the winding station (S2) and the unwinding station (S1) for transporting the mother reels from the winding station to the unwinding station, the transit tracks (500) being arranged at a second distance (D2) from each other, the second distance (D2) being less than a first distance (D1) between the support tracks (12) of the assembly for handling the reels (1).

14. The take-up and pay-off device according to claim 13, characterized in that The support tracks (12) are arranged vertically higher than the transit tracks (500), and wherein the vertical distance between the transit tracks and the support plane of the support tracks (12) is configured so that a gap (G) of less than 200 mm is formed between a full reel (1) supported by the transit tracks and an empty reel (1) supported by a cart (20) on the support tracks (12).

15. The take-up and pay-off device according to claim 14, characterized in that The vertical distance between the transit tracks (500) and the support plane of the support tracks (12) is configured so that a gap of 20 mm to 200 mm is formed between a full reel (1) supported by the transit tracks (500) and an empty reel (1) supported by a cart (20) on the support tracks (12).

Images