FI12332U1 - Arrangement for handling machine reels / roller shafts - Google Patents

Description

Arrangement for handling machine rolls / reel shafts

The invention relates to the handling of machine reels and winding shafts, in particular to the handling of machine reels and winding shafts with fiber web machines, such as paper and board machines, and more particularly to the arrangement of handling reel / reel shafts of claim 1.

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 m / min and the width of the paper web can be over 11 m.

In papermaking lines, papermaking is a continuous process. A paper web made from a paper machine is rolled around a reel axis, a reel roll, into a machine reel, which can be over 5 meters in diameter and over 160 tons in weight. The purpose of the winding is to convert a flat paper web into a more manageable shape. With the reel located on the main machine line, the continuous process of the papermaking machine is interrupted for the first time and switched to intermittent operation. The aim is to achieve this periodicity with the best possible efficiency so that the work already done is not wasted.

The web of papermaking machine rolls has a full width and is even more than 100 km long, so it has to be cut into sections of suitable width and length for the paper mill customers and rolled around the cores. customer rolls before shipment from the paper mill. The web is longitudinally cut and rewound in a known separate machine, i.e. a winder.

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 longitudinal cutter is stopped and the rolls, or so-called rollers, are stopped. the move is removed from the machine. After that, the process will continue as a new move. These steps are repeated periodically until the paper runs out of the machine reel, and the machine reel is replaced and the operation begins again as a new machine reel.

In the longitudinal cutters of known paper machine lines, the machine reel is brought to a length cutter not connected to the paper machine by rails, normally a hall crane and lowered to the rails. In applications where the paper machine reel and the length cutter are connected to each other on rails, the machine reel is moved along the rails from the reel to the winder. The rails of full machine rolls consist of horizontal or inclined rails to the waiting station. On 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 rails by means of a transfer device and on inclined rails by gravity scrolling, by means of stop and release mechanisms.

The unwinding station typically consists of an unwinding arm that supports the machine reel during unwinding. The unwinding arm comprises a first unwinding arm on the operating side and a second unwinding arm on the treatment side. The ends of the machine reel are unrolled during these unwinding jackets. Unlocking arms are hinged to the unrolling bar to lock the machine reel in place during unrolling. The machine roll in the unrolling position is connected to a brake generator which acts as a drive for the unrolling roller.

Various arrangements are known in the art for transferring a machine reel to, for example, a winding section of a winder or a coating machine. One known method is to move the machine reel with a hall crane onto the rails for transfer to the unrolling station or, in its simplest form, directly to the unrolling station. Another way is to transfer the machine rolls from the reel to the winder unroll portion on rails extending from the reel to the unroll portion, for example by gravity, whereby the rails are horizontal or inclined towards the unroll portion. The rails typically comprise one or more waiting positions and, in the case of inclined rails, the machine roll is gravitationally transferred from one station to another, each position comprising a retaining mechanism or, in the case of horizontal rails, via transfer devices connected to the rails. The machine rolls can also be moved from the retractor to the unroller by a transfer trolley, for example a floor-supported transfer trolley of the type disclosed in EP 1266091 B1, which moves the machine rolls at the height of the machine roll rails. The transport trolley (for example, OptiCart, VaICart) features a steel structure sufficient to support the heavy roll of the machine, in some cases, the hardware portion needed to move the machine roll, the energy transfer / storage arrangement for generating motion energy, and the security equipment necessary for securing. Also known in the art are trolleys running on rails arranged in connection with the floor.

Also known in the art are production lines in which the machine reel must be rotated 180 ° about its vertical axis, for example to change the unwinding direction for the unroller, or 90 ° to move the machine roll longitudinally, e.g. Typically, this pivoting can be accomplished by means of a pivoting boom connected to the crane by lifting the machine reel off the rails with the crane and pivoting the machine reel about its vertical axis through the pivot boom. As known in the art, turning can also be accomplished by means of a transfer trolley by moving the machine roll with the transport trolley out of the rails line and by turning the transport trolley through the driving path of the machine roll.

Fl Patent Publication 126726, for its part, discloses a method and apparatus for handling roller shafts, wherein the roller shaft is first displaced sideways and outwardly after being displaced from the unroller and unroller. again substantially 90 ° horizontally.

The prior art solutions described above require, on the one hand, a crane-based arrangement for a machine room height and, on the other hand, a trolley-based arrangement on a machine site width, which factors increase the cost of constructing the machine room. In some cases, these prior art solutions are not possible because, for example, there is no crane available or, for example, there is insufficient space in the height or width.

An arrangement for handling machine reels in connection with fiber web machines such as paper and board machines is known from Fl utility model publication F 9251 U, which comprises a pivoting device for rotating a machine roll around its vertical axis to move the machine roll to unrolling rolls. In connection with the arrangement, a rotatable pivoting device adapted to pivot the machine reel about its vertical axis to change the unwinding direction is arranged to be connected to at least one rail with at least one movable rail part, preferably two movable rail parts.

One disadvantage of an arrangement of the type described above is that when turning the machine roll only 90 ° very long gates to the rail are needed to move the machine roll from longitudinally to the rail, e.g. .

The object of the invention is to provide a novel solution for handling machine rolls / winding shafts, wherein the problems and disadvantages of turning the machine roll / winding shaft described above are eliminated or at least minimized.

One particular object of the invention is to provide an arrangement for handling machine reels / winding shafts in which problems and disadvantages associated with turning in particular 90 ° are eliminated or at least minimized.

One particular object of the invention is to provide an arrangement for handling machine reels / winding shafts wherein the machine reel / reel shaft is pivotable in a small space substantially 90 ° so that the machine reel / reel shaft is movable in a conveyor for transport in machine direction or ° for transverse mounting on rails. Particularly in existing production lines, space requirements are often a critical factor, especially as to whether a state-of-the-art process is at all possible and a significant cost factor in new production lines.

In order to achieve the foregoing and further objects, the arrangement according to the invention is essentially characterized by what is stated in the characterizing part of claim 1. Advantageous additional features of the invention are set forth in the subclaims.

According to the invention, the arrangement for treating machine rolls / winding shafts with fiber web machines, such as paper and board machines, comprises first and second rails on which the first and second ends of the machine reel / winding shaft are respectively supported, which arrangement comprises pivot bearings the end being supported and forming a pivot about which the machine reel / reel axis is pivotable substantially 90 °, the arrangement comprising means for supporting one end of the machine reel / reel axis during pivot movement.

According to a preferred feature of the invention, the means for supporting one end of the machine roll / winding shaft during pivoting movement comprises a curved rail and a transfer carriage adapted to move on one end of the machine roll during pivoting motion.

According to a preferred feature of the invention, the means for supporting the other end of the machine roll / winding shaft during a pivoting movement comprise a movable support supported on the floor or the like, for example a moving carriage.

According to a preferred feature of the invention, the arrangement comprises a transfer device for moving the machine roll / roll axis rotated in the machine line to the transfer carriage.

According to a preferred feature of the invention, the arrangement comprises a transfer trolley for moving the machine roll / roll axis rotated in the machine direction with the transfer trolley.

In the arrangement according to the invention, the pivot point of the machine roll or winding shaft is preferably located at one end of the machine roll / winding shaft on the rail and pivoted about the pivot point to rotate the machine roll / winding shaft substantially 90 ° In this way, the machine roll / winding shaft can be loaded onto the transfer carriage after turning, for example by the transfer carriage transfer device and respectively unloaded from the transfer carriage by the carriage transfer device and turned onto rails. The arrangement according to the invention achieves considerable space savings both in width and in height, and furthermore, the travel path of the transport carriage can be arranged longitudinally and thus parallel to the machine line to travel very close to the machine line.

According to a further advantageous feature of the invention, the arrangement comprises a transfer device for transferring the inverted machine roll / reel axis to the transfer carriage from the rails and vice versa, which transfer means are disposed in the transfer carriage or in connection with the rails.

In the arrangement of the invention, one end of the machine reel / reel shaft is supported at a pivot point to the rail via a pivot bearing or the like and the other end, a movable end, supported by a transfer carriage on a curved rail or floor or similar supported moving carriage. The pivot point is preferably arranged adjacent to the rolling track of the machine roll / roll axis or the pivot point may be located on a rail structure arranged adjacent to the rolling rails, which may be movable in the transverse direction.

According to a further advantageous feature, an actuator, for example a traction sheave, is provided in connection with the swivel bearing or the like.

According to a further advantageous feature, the floor-supported movable support comprises an actuator for effecting a pivoting movement.

According to a further advantageous feature, the movable support supported on the conveyor rail moving to the transport carriage / floor comprises locking means for locking the moving end of the machine roll / winding shaft during the pivoting movement in the support structure. For example, a moving trolley may move along a circular track or the like arranged on the floor, or it may be a trolley or a trolley-type transport trolley. The curved rail is preferably supported by support structures substantially at the height of the rails.

Although this description is primarily about paper, the invention is also applicable to the manufacture of other fibrous webs. Similarly, even though this description generally refers to machine rolls / winding shafts, the invention is also applicable for use in the manufacture of a fibrous web for substantially turning 90 elongated loads, such as partial machine rolls, reel rolls and rolls, when supported by rails or the like. Further, it should be noted that the arrangement is suitable for use in removing the machine roll / reel shaft from the rails as well as for placing the machine roll / reel shaft on the rails.

In the following, the invention will be described in more detail with reference to the figures in the accompanying drawings, the details of which, however, are not intended to be limited in any way.

Fig. 1 schematically shows a preferred example for turning a machine roll in accordance with the invention.

In the schematic example of the arrangement of the invention shown in Fig. 1, a machine roll 10 is mounted on rails such as rolling rails 13, 14 such that one end, first end 11 of machine roll 10 is supported by second rail, first 13 and second end 12 on second rail 14. ° is a pivoting bearing 16 arranged in connection with the first rail 13, whose pivot point P is rotated about a longitudinal position of the machine roll 10 in which the machine roll 10 'is disposed substantially parallel to the machine line. end 12 along curved rail 17 in pivoting motion C. The pivoting second end 11 of machine roll 10 is supported on transfer carriage 15 which moves along curved rail 17 so that machine roll 10 'is located longitudinally in the direction of the machine line. longitudinally in the machine-to-machine position, the machine roll 10 'is movable to a transport carriage or the like to be moved in the machine line direction S adjacent to the machine line, wherein the machine roll 10' is disposed in the transport carriage.

The pivot point P of machine roll 10 or winding shaft is disposed on one end 11 of machine roll 10 / winding shaft on rail 13 and is rotated about the pivot point 12 as the second end 12 moves along a curved rail 17 to substantially rotate machine roll 10 / winding shaft 90 °. Thus, the machine roll 10 '/ reel shaft can be loaded onto the transfer carriage after turning, for example, by the transfer carriage transfer device and respectively unload the transfer carriage by the carriage transfer device and pivoted onto rails 13, 14. Also, transverse-mounted auxiliary transfer rails on which the rotated machine roll 10 'is transferred to the transfer carriage. One end 11 of machine roll 10 / winding shaft is supported at pivot point P to rail 13 via pivot bearing 16 or the like, and the other end 12, movable end, is supported by a transfer carriage 15 on a curved rail 17 or movable trolley, e.g. the support structure. The pivot point P is preferably arranged adjacent to the rolling rail 13 of the machine roll 10 / winding axis or the pivot point P may be located on a rail structure arranged adjacent to the rolling rail 13 which may be movable transversely. An actuator is provided in connection with the pivot bearing 16 or the like, for example a drive wheel for actuating the pivoting movement, or alternatively the movable support for the other end 11 supported on the floor comprises an actuator for actuating the pivoting movement. The movable support supported on the curved rail 17 by the carriage 15 / floor preferably comprises locking means for locking the movable end 12 of the machine roll 10 / winding shaft during the pivoting movement. For example, the movable support or trolley may move along a circular track or the like arranged on the floor, or it may be a trolley or a trolley-type transport trolley. The curved rail 17 is preferably supported by support structures substantially at the height of the rails 13, 14.

The invention has been described above with reference only to some preferred embodiments thereof, which are not intended to be limited in any way by many modifications and variations are possible within the scope of the invention as defined by the following claims.

Reference numeral list 10, 10 ', 10 ”machine roll 11, machine roll end 12, machine roll end 13 rail 14 rail 15 transfer carriage 16 swivel bearing 17 curved rail C pivoting P pivot point S machine direction

Claims (5)

protection Requirements An arrangement for treating machine rolls / winding shafts with fiber web machines, such as paper and board machines, comprising first and second rails (13, 14) on which the first and second ends (11,12) of the machine reel / winding shaft (10) are correspondingly supported, characterized in that the arrangement comprises a pivoting bearing (16) arranged in connection with the first rail (13) or the first end (11) of the machine roll (10) / winding shaft which forms a pivot point (P) around the machine roll (10). ) / winding shaft is pivotable substantially 90 °, and that the arrangement comprises means (15, 17) for supporting the machine roll (10) / second end (12) of the winding shaft during the pivoting movement (C). Arrangement according to Claim 1, characterized in that the means for supporting the machine roll (10) / one end (12) of the winding shaft during the pivoting movement (C) comprise a curved rail (17) and a machine roll of a transfer carriage (15) arranged on the curved rail (17). (10) for supporting the second end (12) during the pivoting movement. Arrangement according to Claim 1, characterized in that the means for supporting the machine roll (10) / second end (12) of the roller shaft during the pivoting movement (C) comprise a movable support supported on the floor or the like, e.g. Arrangement according to one of Claims 1 to 3, characterized in that the arrangement comprises a transfer device and / or auxiliary transfer rails for transferring the machine roll (10 ') / winding axis in the direction of the machine line to the transport carriage. Arrangement according to one of the claims 1 to 4, characterized in that the arrangement comprises a transfer carriage for moving the machine roll (10 ”) / winding axis rotated in the machine line direction (S) with the transfer carriage.