FI122458B - Fiber web winder spindle storage - Google Patents

Description

FIELD OF THE INVENTION The present invention relates to a fiber web winder spindle store according to the preamble of claim 1, wherein the reel shafts have 5 movable shafts during a reeling sequence, the reel spindle store having at least two successive storage spindle positions.

In a fiber web machine, a fiber web, such as paper or board, is produced in a continuous process. Depending on the speed of the machine and the basis weight of the web, up to 100 tons per hour are generated continuously. Continuous processing of the web is converted into a substantially intermittent winding of the fiber web machine by winding the web into rolls which can be further processed, for example, one by one. With the retractor, the web 15 is rolled onto the winding shaft for a certain amount, after which, typically without slowing the web speed, a so-called "roll" is made. roll change, in which the web is cut and guided to roll around a new, empty winding axis.

Operation to interrupt the retractor is very crucial for the operation of the entire fiber web machine 20 and thus it is important to handle the reel shafts, both web and empty reel shafts, reliably and in such a way that said reel change can be performed whenever necessary, δ ^ 25 therefore equipped with a roller shaft storage, wherein the empty roller shafts can be stored ready for use in reeling. The roller shaft stock is typically implemented

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£ by means of two rails on both sides of the retractor. The roller shafts are then stored on the rails from their bearing housings.

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S 30 support. The necessary winding shaft is, for example, moved by a suitable lever

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2 mechanism on the primary winder assembly of the retractor for transferring the reel to a new reeling shaft.

One typical solution is a roller shaft stock 5 with horizontal rails disposed in the main web running direction in front of the winder roll so that the web runs from below the winding shaft stock onto the winder. Such a solution is disclosed, for example, in U.S. Patents 4,778,122, 5,544,841, 4,744,526 and 6,076,281.

It is also known in the art to have a roller shaft assembly provided with horizontal rails disposed in the main direction of web travel after the winder roller of the retractor, located above the machine reel to be rolled. Such a solution is disclosed, for example, in U.S. Patents 4,905,925.

US 2,989,262 discloses a winding shaft stock having inclined rails and stop means arranged in connection with the rails for controlling the position and rolling of the winding axles on the rails on the rails. One problem with such a solution is in particular the operational safety risk of the stops. If the stops are malfunctioning, the winding shafts may even unravel uncontrollably towards the winding cylinders.

It is an object of the invention to provide a roller shaft stock for a fiber web machine, which provides more efficient space utilization and

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ό more flexible handling of the scrolling shafts.

The above objects can be achieved by a fiber web winder

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£ with a spindle storage depot from which spool shafts can be moved during the spool 30 to a reel spool station which

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g plays at least two successive reel shaft storage stations arranged on different horizontal planes, with the reel axis moving means 3 for moving the reel axis from the first storage station to the second storage station. The invention is characterized in that each storage station comprises a support plane which can be set in a substantially horizontal direction on a different horizontal plane (Hi ... Hn).

When arranged in this manner, the storage of the reeling shafts takes up less space in the machine direction and at the same time the storage of the reeling shafts is safe, since storage is not carried out on sloping rails.

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Preferably, the transfer means comprises a lever mechanism arranged to support the winding axis during transfer between the first storage position and the second storage position on different horizontal planes.

Each storage station comprises a support plane of a different horizontal axis for the roll axis.

According to one embodiment, each storage station comprises a support plane on a substantially horizontal horizontal rotary axis at a different horizontal plane. In this case, the support plane preferably consists of a body part on which the winding shaft is stored.

According to another embodiment, each storage station comprised a support plane on a substantially horizontal plane adjustable for rotation axis at different horizontal planes. In this case, the support plane preferably consists of 0 T of said lever mechanism on which the winding shaft is stored.

According to another embodiment, the transfer means form at least partially the support plane of the winding shaft. The winding shaft is then stored

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4 is also partly supported directly on the reel shaft stock body.

According to one embodiment, the transfer means of two successive storage roller storage stations are arranged to extend into the working area of each other such that the roller shaft may be supported simultaneously by two transfer means. In this way, the movement of the winding axis is effected by moving rather than rolling. The lifting arms of the first storage station are at a different distance in the transverse direction from the lifting arms of the second storage station 10.

The lever mechanisms of the transfer means comprise lifting arms adapted to lift the winding shafts from their ends. Preferably, the lifting arms are disposed relative to the centerline of the fiber web winder and the fiber web so that lifting takes place from the neck of the axis of the winding shaft.

Other additional features of the invention will be apparent from the appended claims and from the following description of embodiments of the figures.

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In the following, the invention and its operation will be described with reference to the accompanying schematic drawings, in which Figure 1 schematically shows an embodiment of a fiber web winder according to the invention,

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ό 25 Figure 2 shows successive reel shaft stocks, o Figure 3 shows the other end of the reel shaft seen from the front, and

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Figures 4 to 7 show different embodiments of a continuous roller machine with a roller shaft stock.

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Figure 1 schematically shows a side view of a fiber web machine roller 1 known in itself, more specifically a continuous fastener roller. The reel 1 comprises a winding cylinder 3 through which the web W to be wound is guided to the web reel 5 to be wound around the reel axis 13. the primary winding station 7 and the secondary winding station 9. The reel has a roll-5 storage shaft 15 on which the empty winding axes 13 required for the reel 1 can be stored. This is a machine reel, so-called. continuous roller retractor, so that the reel shafts are so called. reel spools. The roll shaft shafts are supported in the roll shaft stock at both ends, preferably their bearing housings.

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The winding shaft storage 15 here preferably comprises in the machine direction MD inclined body members 17 located on different sides of the fiber web machine. The body parts can be implemented in other ways, it is essential that the storage positions of the roll axis storage are at different horizontal levels at a certain distance from each other. Prior to the reel, the winding shaft stock 15 is disposed in the web travel direction so that the stock is inclined obliquely against the web W travel direction. This solution makes it easy to place web-handling equipment under the roll shaft stock because of the space left under the structure and because the structure makes the roll stock 20 short in the machine direction.

The housing members are provided with roller shaft storage stations 21 in the machine direction, one after the other. The storage stations 21 are arranged on different horizontal planes Hi ... Hn such that

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ό 25 roller shafts stored according to consecutive horizontal planes are stored in storage position 21 partly in the machine direction limit-

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x full. Moving means 19 are provided in connection with the storage stations for moving the winding roller 13 from the first storage station to the second storage station S to the station 30 m 6

The transfer means 19 comprise lever mechanisms 19.1 arranged in the frame members 17, which are pivotally provided through the joint 19.2 to the frame member 17. The lever mechanisms of the opposite sides of the roller shaft stock can be interconnected by the synchronization shaft and / or actuated by the actuator controls. One lever mechanism here consists of a single lever member extending here from the pivot point in two directions. The embodiment of the lever mechanism may differ from that shown herein, depending, for example, on the transmission method and / or power unit used. Here, the lever member comprises an arm portion associated with a power train 19.4, such as a hydraulic cylinder 10 or an electromechanical actuator. By way of exception, the force may be transmitted to the lifting / lowering arms via a rotatable shaft. The lever body also comprises lifting / lowering arms 19.3, on which the winding shafts are raised / lowered and moved. The transfer means are arranged such that the lifting / lowering arm extends from the first storage 15 station to the second storage station.

Preferably, the winding shaft is arranged to rest in a storage station on the body 17, the body forming a support plane of the storage station 21. In connection with the transfer, the transfer means raises the body 20 of the winding shaft to its support, whereby the winding shaft can move, for example, controlled by the design and rotation of the lifting / lowering arm 19.3 to the end of the raising / lowering arm. In the storage position, the winding axis is preferably held in position by the effect of gravity and the shape o of the support plane formed by the body.

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It is preferable that the actuators need only be active when moving the rotary axes. The lever mechanism can also be utilized

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£ such that they support, at least in part, the winding axis at the storage station. The support plane can then be inclined. Support Slope OOI

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S 30 can be selected according to the direction in which the reel shafts are moved. traffic

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° when the tide is down from top to bottom, a separate stop can also be provided at the edge of the support plane to prevent the winding shaft from moving out of its storage position. However, it is also possible that the support planes at different horizontal levels can be set in a substantially horizontal direction. In this case, the support plane at least partially consists of a lifting / lowering arm 19.3.

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Fig. 2 shows two successive sets of winding shafts to illustrate the operation when the moving direction of the reeling shafts 13 in the figure is from left to right and from bottom to top. The initial situation of the transfer is shown by a solid line and the final situation by a dashed line. Before the winding shaft 13 10 is brought into the lower storage station lift arm 19.31, the second upper storage station lift arm 19.32 is lowered. The lift arms of the successive storage stations are arranged so that they can be driven overlapping to be in contact with the same winding axis. When it is desired to move the reel shaft, the transfer device 19 is rotated 15 so that the reel shaft moves and / or rises from the lower arm 19.31 to the upper arm 19.32. Here the transfer takes place in stages without rolling along the rail. Similarly, with respect to the upper storage position shown in Fig. 2, the lifting arm of a possible next storage position is lowered before the rotation of the lifting arm 19.32 in Fig. 2 to the upper position shown by the dashed line. For the sake of clarity, body parts are not shown in FIG. 2, although in practice the body part preferably comprises a support plane of the storage station 21. When the direction of movement of the reel shafts 13 in the figure is from right to left and from the top o down, the reel shaft can simply be lowered with the lifting arm 19.32

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ό 25 to the next empty warehouse 21.

Fig. 3 shows the other end of the winding shaft 13 as seen from the front.

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£ in the situation where the lower storage station lift / lower lever 19.31 is being moved from the lower storage station to the lower storage comp.

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g 30 for stem 19.32. The figure shows a feature whereby these landing arms are arranged at different distances from the center line of the machine, whereby they 8 can be overlapped. In this embodiment, the lower arms 19.3 are arranged to support the winding shaft from its shaft neck, between the bearing housing and the roll shell.

Figures 4-6 show various embodiments of a continuous winding spool of a fiber web machine equipped with a winding shaft stock. The fiber web winder shown in Figure 4 comprises substantially horizontal and machine-direction rails 25 (only one shown) on either side of the reel. The winding shafts are supported on said rails 25. The rails extend on both sides of the roll roll cylinder 3. During the winding process, the winding shaft runs at the same level either along the rails or in the vicinity of the rail, for example supported by a separate carriage (not shown). The winding cylinder is movable relative to the rails to allow movement of the winding shaft over the winding cylinder. The winding web W is guided through a winding cylinder 3 15 to a winding web 5 around a winding axis 13.

Here, also, the reel shaft stock 15 preferably comprises machine-angled body members 17 disposed on different sides of the fiber web machine. The body parts can be implemented in other ways, it is essential that the storage stations of the reel shaft stock are at different horizontal levels at a certain distance from each other. Prior to the reel, the winding shaft storage 15 is arranged in the running direction of the web W such that the storage stations 21 are inclined obliquely in the running direction of the web W. In the direction of travel of the roller shafts, the last storage position is at or below the level of said o ™ 25 rails 25. In this case, the entire roll axis shaft light

The rack 15 is arranged below the level of the roller rails 25. Raina W

The 00 ™ is arranged here to run below the reel shaft stock. In Figure

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In accordance with one embodiment, the sa 4 is further described in connection with a roller shaft stock transversely arranged in a roller shaft stock.

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g 30 lateral feeder for roller shafts extending from outside the region 30.

By means of the lateral feeder 28, a roller shaft 9 calculated on the side of the roller is conveyed thereto to the area of the roller shaft storage 15, from which the roller shaft stock lifting arms 19.3 can be raised to the roller shaft stock. The lateral feeder enables, among other things, to bring the reel shafts without a crane using, for example, a transport trolley.

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Fig. 5 shows an embodiment corresponding to the embodiment of Fig. 4, however, by way of exception, the reel shaft stock 15 is arranged above the reel before the reel in the web W travel direction so that the stock is obliquely downward in the web W travel direction. This solution makes it easy to place web handling devices or web property measuring devices under the roll axis warehouse because of the space below the structure and because the structure makes the roll axis shaft short in the machine direction. In Figure 5, the roller rails 25 extend below the warehouse. With this solution, the handling of the winding shafts 15 is flexible. Here you can, for example. to easily pass an empty winding shaft directly onto the rails 25 past the roll axis stock, different paths as shown in the figure by dashed lines. Also, a new spindle can be brought into storage or simply removed from the spindle. The winding shaft storage is arranged and / or such that at least the empty winding shaft 20 can be moved on rails 25 past the storage. For example, in Fig. 5, the distance between the body portion 17 of the reel shaft stock 15 and the rails 25 corresponds to the distance required for passage of the reel shafts therebetween. For lowering the reel shafts on the reel rails, the lowest storage position 5 of the reel shaft stock may be provided, for example,

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5 by a conveying means shown in Fig. 5 by a broken line.

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Fig. 6 shows an embodiment similar to that of Fig. 5, except that the winding shaft stock 15 is disposed above the winder C 11 before the winder in the running direction of the web W so that the positions of the storage in position 30 are inclined obliquely in the running direction of the web.

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Figure 7 shows an embodiment in which each horizontal plane comprises a storage station for more than one winding axis. On the frame sections are arranged roller shaft storage stations 21. Moving means 19 are provided in connection with the storage stations for moving the roller shaft 13 from the first storage station to the second storage station. In this embodiment, the winding shafts are stored in at least two different levels. Typically, an empty winding shaft passes through all levels of the warehouse. The roller shaft can be brought by crane to the lower (or lower) level landing site, from where it is guided along the rails in time for winding. 10 Instead of a crane, the empty winding shaft 13 can be brought directly to a lower level, for example by means of a winding shaft carriage. The storage stations can be on more than two horizontal planes and are located at least partially above each other and / or at least partially overlapping. Each horizontal plane may have a different number of storage stations. The upper horizontal plane 15 may also be located partially over the winding cylinder 3.

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With the solution of the invention, the existing winding belt reel assembly of a fiber web machine can be renewed by unloading the existing winding shaft stock 20 of the reel, respectively, and providing the reeling shaft store from which arranged on different horizontal planes, and where there is a storage station connection

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ό 25 means for moving the spindle shafts to move the spool axis from the first storage station to the second storage station.

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It should be noted that only a few of the invention have been described above

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S most preferred embodiments. Thus, it is to be understood that the invention is not limited to the above embodiments, but may be practiced in many ways within the scope of the appended claims. The features disclosed in the various embodiments may also be used within the scope of the present invention in conjunction with other embodiments, and / or combinations of features different from the disclosed features may be desired if technical possibilities exist.

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Claims (7)

A fiber web reel spindle storage (15) from which the spool shafts (13) can be moved to a reel spool station during a spooling sequence, the spool spool store (15) comprising at least two successive spindle spool storage stations (21) arranged on different horizontal planes at least one roller shaft moving means (19) for moving the roller shaft from the first 10 storage stations to the second storage station, characterized in that each storage station (21) comprises a support plane adjustable substantially horizontally at a different horizontal plane (Hi ... Hn). A roller storage shaft for a fiber web winder according to claim 1, characterized in that the transfer means (19) comprise a lever mechanism arranged to support the winding shaft (13) during transfer between the first storage position and the second storage position on different horizontal planes. 20 Fiber roll reel shaft storage unit according to claim 2, characterized in that the transfer means (19) at least partially form a support plane for the reel axis, δ Door ώ 25 Fiber web roller stock according to any one of the preceding claims, characterized in that the transfer means (19) of two successive roll stock storage stations (19) are arranged to extend into the working area of each other so that the roll axis can be supported simultaneously by two Ovi S transfer means . LO o 30 o Ovi Fiber winder reel spindle storage unit according to any one of claims 1 to 4, characterized in that the spool shaft spool storage unit is provided with a lateral spindle feed device (28). A roller shaft assembly for a fiber web winder according to claim 1, characterized in that the transfer means (19) comprises lifting / lowering arms (19.3) adapted to lift or lower the roller shafts (13) at their ends. A roll storage shaft for a fiber web winder according to claim 6, characterized in that the lifting lower arms (19.31) of the first storage station (21) are at a different distance from the lifting / lowering arms (19.32) of the second storage station. 15 δ {M o oo {M X IX CL {M (M CD m O) o o {M