FI116217B - Method for moving the roll and the roller - Google Patents

Description

116217

Method for moving the roll and the roller

The invention relates to a method of moving a roll of the type shown in the preamble of claim 1. The invention also relates to a reel of the type shown in the preamble of claim 5.

At the end of the paper machine or paper finishing apparatus, a paper web manufactured and / or processed in the previous machine parts, usually several meters wide, is rolled into a machine reel around a reel roll. In this winding, a rotating roller cylinder is usually used to guide the paper web to the machine roll, whereby the nip contact between the winding cylinder and the machine roll affects the quality of the resulting roll. A conventional solution is one in which the winding cylinder is pressed and the reel roll around which the reel grows in a nip contact is moved as the reeling progresses in the support structure, for example by supporting the ends of the reel roll with the reeling rails. The ends of the spool reel are actuated by a suitable loading mechanism to adjust the nip contact between the resulting machine roll and the winding cylinder. Such roll-20 concepts and the associated loading methods are disclosed, e.g. in Finnish Patent 91383, corresponding to US Patent 5,251,835; and in Finnish Patent Application 950274 and the corresponding US Patent 5,690,298.

·. WO99 / 57048 discloses a winding carriage with a · · · top. support surfaces and separate power units supporting the ends of the reel reel! for loading the roll through the ends of the reel roll against the winding cylinder. The trolley is arranged to be wheeled on the floor and positioned by means of a transfer device such as a transfer screw.

30

From the Finnish patent application 981427, which corresponds to the international publication WO 99/65806, a solution is known in which a reel of the reel .V. each end being disposed on a support surface which is in a carriage arranged to be moved by linear guides on the roller body. The new reel: 35 rolls are lowered by the starter on these sleds, and after the roller-v, change, the full-roller rollers are brought into contact with the end of the reel roll and the jaws are locked around the end housing of the reel roller 116217. The loading and displacement of the reel roller as the roller increases are accomplished by winding carts to which power units such as hydraulic cylinders are connected. Each carriage moves with the movement of the rolling carriages in linear guides, and the carriages support the roller 5 and receive the weight of the roller. This avoids frictional interference of friction between the bearing housings of the reel roller ends and the winding rails. At the end of the winding, the ends of the reel reel can be moved by carriages from the support surfaces to their stationary reel rails, and the carriages can be driven by their own actuators to the reel position near the reel to receive a new reel reel.

With the above solution, the structure of the roll produced during the winding can be controlled very precisely, since the load and thereby the nip load can be precisely controlled. It is an object of the invention to provide a method which achieves the same advantages in a simpler manner with fewer controls and actuators. To accomplish this purpose, the method according to the invention is essentially characterized in what is set forth in the characterizing part of the appended claim 1. The carriage and winding carriage are connected to each other so that they can be moved together by the same power unit for moving the reel roll in the direction of the roll radius, i.e. according to roll growth.

·. Typically, the ends of the reel reel, as is known in the known solution, rest on the support surfaces of the carriages and do not roll with the fixed ones. on the scroll rails during nipple closed scrolling. The carriage rests from below on a support surface, such as a guide, located above the floor level in the carrier frame.

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The invention provides the same advantages as the solution disclosed in the above-mentioned International Publication WO 99/65806, i.e. the ends of the reel roll are resting. »on top of support surfaces arranged in linear guides for the slide» * «, ···. 35, and thus obtains friction between the ends of the reel roll and the reel rails. All factors affecting friction are stable throughout the: v roll and thus do not cause any change in load on the V · roll nip. The roller carriage and the carriage can be moved on each side of the roller 3 116217 as a single kinetic assembly with one actuator, and the carriage does not need its own actuator to move the carriage to receive a new reel reel.

5 Since the carriage and the reel trolley are connected together to form a movable assembly, the carriage is in an interchangeable position with a full-roll Tam drill. The change to an empty reel reel is performed with the Tam reel roll supported by the start winder. When the change is complete, the carriages and carriages are driven under the ends of the new reel roll, and the new reel roll around which the new reel has begun to form is lowered onto the carriages.

The reel according to the invention, in turn, is characterized by what is set forth in the characterizing part of the appended claim 5.

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The invention will now be described in more detail with reference to the accompanying drawings, in which Fig. 1 is a side view of the roller according to the invention, Figs. 2a-2d show different stages of winding, and. Fig. 3 shows the carriage and carriage.

Figure 1 is a side elevational view of a reel according to the invention. Se ^. comprises a stationary, rotating roller bearing 1,! through which the continuous paper web from the paper machine or paper finishing equipment is wound onto a machine roll R. The full machine roll R is: ··· 'outlined in the figure. The type of roller is a continuous roller 30 shown in the figure, whereby the paper web is changed to run on a new roll: ": at running speed. The reel may also be an intermediate reel.

The web is wound into a machine reel around a self-centered reel roll 2. The illustration shows the 35 reel rolls at the beginning of the reel (paper web not shown). The web then enters the roll: .v through the winding nip N between the winding cylinder 1 and the roll, where the current line load of * I * 4 116217 is controlled by a principle known per se by power units.

Both ends of the spool roll 2, more particularly the peripheral surface of their bearing housings 5, are supported by a carriage 3. Figure 1 shows a carriage on one side of the reel, and the corresponding carriage as well as other associated structures are also on the opposite side. The upper surface of the carriage 3 forms an approximately horizontal support surface 3a on which the bearing housing at the end of the reel roll 2 rests.

This carriage 3 is arranged to be movable guided by at least one linear guide 9 in the direction of growth of the roll, i.e. in the radial direction of the roll. The linear guide 9 is disposed in the support frame 10 above the floor level. The carriage 3 thus replaces a fixed winding rail on which the reel roll has been rolled forward during nip roll 15 according to prior art. The support surface 3a is at the same height as the stationary winding rail K at its end of the trajectory.

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Figure 1 also shows a winding carriage 4 which is moved in the direction of roll up by a power unit 5, which also determines the line load on the winding nip N. The power unit is typically a pressure medium actuator such as a hydraulic cylinder. The carriage 4 further comprises a pivotable locking jaw 6 which is in contact with the nip N in a vertical plane;. on the opposite side against the circumferential surface of the bearing housing of the reel end, and a corresponding actuator for turning the locking jaw 7.

The linear carriage 3 is controlled by a movable carriage 3 and a carriage 4 movable by means of the power unit 5 30 so that they can be: ·: moved as a whole. By moving the carriage 4 with the aid of the power unit 5, it is possible to move the carriage 3 at the same time. However, replacing the fixed winding bar with a moving body gives the same advantages in controlling the winding parameters: '35 accuracy as previously disclosed in WO99 / 65806.

• »· 5 116217

A track supporting the carriage 3 during its movement, such as a linear guide, is located in a support frame 10, which in turn rests on a floor level or a similar horizontal support. The track of the carriage is located vertically between the support base (floor) and the support surface 3a, and preferably closer to the support surface 3a than to the support frame support carrier, i.e. the carriage 3 is relatively low and easy to move.

Figures 2a-2d show different steps of the winding process implemented by the invention. The drawings show schematically one side of the reel, with corresponding parts on the other side of the reel in the same phase, with the movements of the moving parts on different sides being synchronized.

Fig. 2a shows the winding carriage 4 and the carriage 3 in an end position 15, where the carriage 3 is against the shoulder between the horizontal support surface supporting the linear guide 9 and the upper surface of the carriage rail K. This end position is reached when the machine roll R has reached its final diameter and has been driven away by the carriages 4 from the winding cylinder 1, whereby the winding nip N opens. Prior to the opening of the winding nip open-20, there is a separate printing device 11, which may be a rotating roller or a brush device, moved against the peripheral surface of the roll to prevent air from entering between the top layers of paper. Figure 2a also shows. a new, empty reel reel 2 introduced into the exchange position and displaced and rotated by an initial winding device 8 capable of moving reel reel: 25 in the direction of the circumferential surface of the reeling cylinder 1. Changing the web W entering the reel through the reeling cylinder 1 around a new reel roll 2 is performed by any known exchange method. During the changeover, the tamp-0 roller is supported by the start winder 8 in a position where its laurel housings are above the plane defined by the trajectory of the supporting surface 3a.

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In Fig. 2b, the change is made and the full machine roll R is moved from the support of the surfaces 3a to the fixed winding rails K to the removal station,, v. from where it can be removed from the reel, for example by crane. The roller θ', the carriage 4 and the carriage 3 are moved towards the reel cylinder 1: '35 to receive a new reel roll 2 around which a new machine reel R has begun to form. The carriage 3 is driven by the carriage 4 into a suitable reel roll 2 in relation to.

6 116217

Fig. 2c illustrates a situation in which a new reel reel 2 is lowered by a starter winding device 8 in a nip contact to a reel cylinder 1 so that the bearing housing of the end of the reel reel 2 comes on the support surface 5 3a of the carriage 3. The locking jaw of the carriage 4 is pivoted to the bearing housing, and at this stage a torque change is also performed from the actuation of the starter 8, i.e. from the first actuation to rotating the reel roll 2 and the machine roll R to the end of the winding.

Fig. 2d shows a situation in which the roller has grown to its full size and the winding carriage 4 and the carriage 3 have moved away from the winding cylinder 1 in accordance with the change of position of the reel roller 2. The printing device described above is pushed onto the roller.

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Shifting can also be accomplished such that the full roll is in nip contact with the reeling cylinder during replacement, a new empty reel roll 2 is moved by the starter, the paper web W is replaced by some replacement method to pass around the new reel roll 2, and 20 full rolls and finally the carriages 4 are driven to the receiving station by the reeling cylinder 1 so that the reel roll 2 around which a new roller has begun to form can be lowered to the support surfaces 3a of the carriages 3. During the changeover, the full roller R: 25 is thus in the position shown in Fig. 2d.

! Fig. 3 shows the carriage 4 and the carriage 3 as seen in the direction of the winding rails and the guide. The carriage 4 is located substantially below the guide 9 adjacent to the support frame 10 and has an actuator 7 for pivoting the locking jaw 6 30. The power unit 5 for moving the carriage 4 is attached at one end to the support frame 10 and at the other end to the carriage 4 below the guide 9. The carriage 3 is integral with the carriage 4 above it. v. section and located directly on guide 9. The carriage 3 and the winding carriage 4 form an integral unit having a substantially vertical: * 35 straight carriage 4 and its upper v. a carriage 3. The carriage 3 is preferably arranged to move on a track formed by a guide 9 116217 through successive rolling means, such as rollers 3b, which are rotatably mounted on the lower part of the carriage.

The invention is not limited to the above embodiments, but may be modified within the scope of the inventive idea of the claims. For example, the method is not limited only to the above exchange modes, but other alternatives provided by the roller structure may be contemplated. The invention can be applied not only to a rewinder, but also to an intermediate rewinder. Also, the intermediate reels, in which 10 machine reels are rewound to improve their quality, have a reeling member in a nip contact with a growing machine reel and a reel roll moving due to the increase in the diameter of the machine reel.

Claims (7)

A method of transferring a roll in a wheelchair of a paper or board path, in which a continuous paper or board path (W) is guided via a rolling means (1) to a machine roll (R) around a tambour roller (2), the ends are supported on support surfaces which are moved relative to the rolling member (1) in the radial direction of the machine roll guided by a support body (10) on both sides of the roller according to a change in the position of the tambour roller (2), and by means of force devices (5), contact devices are contacted. with the tambour roller with a read-back (6) substantially in the direction of the path of movement of the supporting surfaces (3a), characterized in that the supporting surfaces (3a) move as part of the movement of the movable transfer means, such as rolling carriages (4), by means of the rolling devices (5). to the transfer devices and supported by webs whose height position is between the support substrate, such as the floor level, of the support body (10), and the support surfaces (3a). 2. A method according to claim 1, characterized in that during rolling the machine roll is transferred on the support surfaces (3a) with the transfer means in the vicinity of fixed rolling rails (K) and from the support surfaces (3a) on the support of the fixed rolling rails (K). • ♦: ·. Method according to claim 1 or 2, characterized in that the changing of the web on a new tambour roller (2) is performed when the tambour roller. are separated from the support surfaces (3a) and a new tambour roller (2) around which the web (W) is changed is transmitted on the support by the support surfaces (3a) transmitted in a '··' exchange station, such that the ends of the tambour roller (2) place on the support surfaces. • \ 2: 4. A method according to claim 3, characterized in that the following operations are performed in connection with the final step of the roll and the roll change: 1. the machine roller (R) which becomes full is carried supported by support surfaces (3a) ...: 1 with the transfer device according to an increase in the machine roll. 2. The full machine roll (R) is handed over from the support of the support surfaces (3a) to a removal station, 3. The web (W) is cut and exchanged around a new tambour roller (2) transferred to the exchange station, 4. The support surfaces (3a) is transferred to the exchange station with the transfer devices, and 5. the new tambour roller (2) and the starting roller (R) are transferred to the support by the support surfaces (3a) in the exchange station. A wheelchair comprising a rolling means (1) arranged to guide a continuous paper or cardboard web (W) to a machine roll (R) about a rotating tambour roll (2), and at both ends of the tambour roll a support frame (10) arranged to guide support surfaces (3a) which support the ends of the tambour roll and which are arranged to move, and transfer devices, such as rollers (4), comprising a read-back (6) and which are arranged to be transmitted by means of force devices (5). ) substantially in the direction of the path of movement of the support surfaces (3a), characterized in that the support surfaces (3a) are coupled to the transfer devices so that they can be transmitted as a whole, and they are supported by paths whose height position is between the supporting substrate, such as floor level, of the support body (10), and the support surfaces (3a). # »· • ·: ·. Wheelchair according to claim 5, characterized in that the support surface (3a) is in a sled (3) arranged to move in the support body ti; (10) on one or more linear guides (9). # · • I I A wheelchair according to claim 5 or 6, characterized in that at the end of the path of the support surface (3a) there is a fixed roller rail (K) whose support surface forms an extension to the moving support surface (3a). I 1 t »» ♦ s 1 »» I »· • ·