FI108634B - Method related to rolling of a web - Google Patents

Description

Method of web winding 108634 Förfarande vid rullning av en bana (divisional application, parent application 942451 / start date 26.05.1994) 5

The invention relates to a method of web winding, wherein the web is rolled onto a core supported by a support roll and through a nip between the support roll and the roll to be manufactured, the method at least partially supporting the core, the method supporting and / or loading

When the web is rolled, e.g. in center rollers, it is typical that the rolls to be formed are supported partly on the surface of the roll by means of a peripheral support 15 against a support roll and partly by a center support by means of sockets in the hole of the core of the roll. With respect to the related art, reference is made, for example, to Fl patent 79505.

In prior art solutions, the contact force of the roll produced frequently is limited to about 4-8 kN / m of roll width, depending on the paper type.

*! 'For example, the weight of a 1.5 m diameter roll may result in a force component of about 20 kN / m in the direction of the support roll. The seats should then support about 16 kN / m.

•! • * ·, When large roller widths occur with large diameters, eg over * * t ·: ·. 3 m, the support forces of the sockets are up to 25 kN. Specially sized and high-quality sleeves must be used to prevent damage to the sleeve caused by 25 high socket loads. This in turn raises the sleeve; · · · Costs compared to rolls made with other types of reels.

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The known center roller solutions are generally equipped with a drive-30 drive system. The chuck torque is used to tighten the roll _. roll paper. A disadvantage of the method is the reduction of the torque effect as the diameter of the paper layer rolls around the periphery of the roll.

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The constant torque generated at constant torque is inversely proportional to the diameter of the roll and thus decreases as the roll increases. When the resistance of the sleeves to limit the torque transferred from the chucks is limited, the method can only be of limited use in controlling the tension of the rolls when making large rolls. The problem with using the hub-5 is also the high speed range controlled by the drive.

It is also known in the art to use reels using press rollers to provide sufficient pressure against the support roll during the initial roll and to prevent the core from bending. For some grades of paper, it has also proven advantageous to use press rolls to press against the roll throughout the rolling process.

! Reference is also made, in the prior art, to International Patent Application PCT / EP93 / 00140 (WO 93/15988), which discloses a device for winding a paper or cardboard web using a peripheral actuating device consisting of a roll or a roller a belt fitted with its own rotatable drive unit, which elastically compresses approximately radially relative to the support roll of the winder; . in that direction against that. an edge roller having an axis of rotation of the drive roller or belt: parallel to the axis of the support roller.

20: · In the prior art, reference is also made to FI Patent 74260, which discloses a support roll solution adapted to a carrier roller:.: From this patent, there is known a winding device for winding a moving web having support means for supporting the roll to be formed at least mainly with a circumferential support and loading means for holding the roll against support means comprising a carrier roll and a movable support belt member supporting at least a large roll.

It is an object of the present invention to provide a method and apparatus for winding a web which, when applied, does not involve the prior art solutions described above. 30 shortcomings. The solution disclosed in patent application PCT / EP93 / 00140 is:. '· I only drive with the edge rollers only and the device cannot support the resulting roll.

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In the solution disclosed in Fl patent 74260, it is not possible to control individually rolls, to profile or to use sleeves of different sizes.

It is an object of the invention to provide a method and apparatus which, by using large rolls of up to 1.5 m in diameter and up to 3 m in width, allows for error-free winding.

In order to achieve the foregoing and further objects, the method according to the invention is essentially characterized in that the method comprises profiling the structure of the finished roll in the roll width and / or in the roll direction with the load and / or load / support pintavetojakautumalla.

The method of rolling the web according to the invention enables the large rolls 15 to be rolled correctly, since the arrangement comprises e.g. load and support functions and surface draw functions that can be used to profile both nip load, support and surface draw.

The arrangement according to the invention has a very wide range of adjustment possibilities and, both the geometry of the roll and the structure of the roll can be influenced. Profiling both • '· in roll width and in circumferential direction is possible. In the invention:. · In the method, both the load and the surface draw can be freely adjusted, for example, according to roll and / or paper quality.

In the method according to the invention, the movement path of the loading and / or supporting device is arranged as the roll to be manufactured increases such that the contact force of the device. . the roller is mainly affected by the initial loading of the roller as an overload and the core '. · · As a support, and especially at the end of the roll, to reduce the weight of the roll.

! 30 If necessary, the device can support the roll to be formed, for example, with up to twice as much force as a conventional support roll 108634 4 known in the prior art, without damaging the roll. In applying the method of the invention, the maximum force of the center support from the chucks to the sleeve can be reduced to a third of the original even in the heaviest loading cases. Thus, in the manufacture of heavy or large rolls, 5 particular advantages are obtained by reducing the strain on the cores with the reduction of the seat forces. As the stress on the sleeve decreases, sleeve damage is reduced and more economical solutions for sleeve quality and dimensions can also be used.

The device used in the method of the invention avoids the problems associated with center drive control of the roller by providing a freely controllable circumferential force independent of the diameter of the roller to adjust the roller tension. Better control of the reeling tension also allows the possibility of flawless reeling with large reels.

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The following example compares one of the prior art hub-based arrangement and one of the methods of the invention! . circumferential forces provided by the applicable device under similar conditions: line speed <«·

'_ / 40 meters per second, roller width 2 m, hub power 14 kW

, ': 20 (at maximum rotation speed), 16kw power roller drive (four units:' · in use), friction coefficient μ = 0.1-0.2 between belts and paper, compression force of machine! v ma fn is 2000-4000 N / m lev.

Roller Diameter (d mm) Circular Force (FU N / m) 25 Prior Art Invention 250 175 200 I f. 500 88 200 1000 44 200 1500 29 200

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In addition, it should be noted that in one embodiment of the device used in the method of the invention, the number of load / support units in operation may be varied, e.g., according to the width of the roll. As the number of units increases as the width of the roll increases, the circumferential force per roll width unit 5 remains unchanged in the arrangement of the invention. By contrast, the circumferential force generated by the center drive per roll width unit remains smaller the wider the rolls are manufactured.

Further, the loading gradient according to the invention, and with it the possibility of 10 higher loading forces, achieves a better venting between the paper layers of the roll to be manufactured. This reduces errors and damage to the rolls, especially when compacting and smooth paper is rolled, which is most often treated with center rolls.

Furthermore, the method according to the invention is very versatile in its functions, allowing e.g. operation of the device used in the method of the invention! as roller lowering device, roller stop / stop without separate device »* | '. preventing the roller from rolling on the floor after the chucks have been opened to change the roller.

..il 20: '· The invention will now be described in more detail with reference to the accompanying drawings, in which details are not, however, intended to be narrowly limited.

Figures IA-IE are schematic partial views of some steps of the method of the invention applied to an embodiment of the device of the invention. mark.

Fig. 2 is a schematic vertical sectional view of an exemplary embodiment of the invention, e.g., shown in Fig. 3.

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Figure 3 is a schematic view of an exemplary embodiment of the invention.

Figures 4A-4D are schematic partial views of some steps of the method of the invention applied in an exemplary embodiment of the device.

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Figures 5A-5D are schematic sub-views of some steps of the method of the invention applied in one embodiment of the device.

Figures 6A-6D are schematic sub-views of some steps of the method of the invention applied in an exemplary embodiment of the device.

Figures 7A-7C schematically illustrate further embodiments of the device as a load / support unit for a surface draw unit.

Figures 8A-8C are schematic views of the pressure distribution of the winding at different stages of the winding according to the invention.

Fig. 9 shows an embodiment of the method according to the invention in a prior art device.

The method according to the invention will now be described with reference to Figures 1A-1E,

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further details of the method and apparatus are described in connection with the other figures.

Fig. 1A is a schematic representation of the initial step of winding. The web W is led

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through a nip N between the support roll 16 and the winding sleeve 14 around the sleeve 14. * »20 press rolls / support-1 for the machine. the load / bearing unit 24 supports the sleeve 14 in its position in the roller position. The load / bearing unit 24 is raised through the cylinder 127 and the pivoting arms 12, to a starting roll position where the angle α between the axis of the support roll 16 and the axis 14,: 30 through the axes is between 0 ° and 90 °. '' Preferably 10-45 °. The sleeve 14 is between the rolls 22 of the unit 24 and the strap (s) running around the rolls 22 is loosened. The axes of the sleeve 14, the support roll 16 and the rolls 22 are substantially parallel.

As shown in FIG. 1B, as the winding progresses, unit 24 of device 20 first moves in a substantially linear direction through a plane passing through support axles 16 and roller 15 and substantially supports and loads the roller 15 formed around the core 14 and tightens the web W by belt tension. The angle α between the plane direction and the vertical direction is 0 ° -90 °, e.g. 20 °. The cylinders 123 move the carriage structure 128 with 10 guides 130 on the support carriage 129 as a continuous movement. Through the loading cylinder 127, 24 units are loaded to achieve the function of the press rolls and the belt rotating around the rollers 22 of the unit 24 provides a surface pull function.

As shown in Figure 1C, as roller 15 increases and roller progresses, unit 15 24 of apparatus 20 follows the circumference of the finished roller 15 in a substantially curvilinear motion, supporting the formed roller 15 and tensioning the web W via surface tension. The movement of the unit 24 at the periphery of the roll is achieved by a combination of movement of the pivoting arms 126 and the guides 130. The unit 24 loads / carries the finished roll 15 in the desired ratio and the tension of the roll 15 is adjusted by means of a belt. With 20 free surface pulls.

. ·. ·. In Fig. 1D, unit 24 of device 20 supports and lightens the finished roll 15 from below and influences the tension of the roll 15 to be manufactured by surface tension. The unit 24 also acts as a retaining roller 15 to prevent the finished roll 15 from rolling on its floor with the center seats open for replacement. The angle β between the direction of the plane passing through the axis of the finished roller 15: '.. and the center axis of the unit 24 and the vertical:': 'is 0 ° -90 °, e.g. 20 °.

In the step of Figure IE, the unit 24 of the device 20 is moved to an exchange position,. V 30 wherein the roller 15 is movable for further processing. Unit 24 is disposed on a roll; during the changeover to a non-winding station and the lowering plate 133 guides the finished roll 15 away from the winding device. If necessary, instead of the lowering plate 133, the unit 24 may act as a lowering device.

In the initial roll-up process, especially in the case of wide rolls 15, in addition to the sockets implementing hub-5 operation, a geometric closed surface contact controlling the positioning of the cores 14 and providing the necessary nip load is required. This is accomplished by positioning unit 24 on a roll 15 to be started at the beginning of the winding to touch it substantially opposite to support roll 16. As the roll 15 to be manufactured has grown to produce a sufficiently high contact force 10 on support roll 16, unit 24 is substantially displaced below the roll 15. During the entire winding event, the load and bearing force exerted by the unit 24 on the roll 15 is adjusted as the roll 15 increases, so that the contact force N of the winding nip between the support roll 16 and the roll 15 is maintained.

FIG. keskiörullai-wrench. The web W, e.g. a paper or cardboard web, is wound through a support roll 16 around a core 14 to a web roll 15 through a nip N between the support roll 16 and the finished roll 15. In the bore of the sleeve 14 are placed chucks 10 ', the support arms of which are designated by reference numeral 102. This is a technique known per se to a person skilled in the art '20 central roller technology. Fig. 2 shows the winding of the web W on two rolls 15 via two support rolls 16 in the reeling device (see Fig. 3) and with the same reference numerals. ·. ·. corresponding parts are marked on the labels.

Fig. 2 shows an embodiment of a device 20 for use in the method of the invention 25 at the final winding, comprising a print roll support unit 1.

: '·., Combined load and / or support unit 24. Load / support unit 24: consists of two rolls 22 arranged around an endless belt (s) 25. One or both rolls 22 are engaged to rotate their 22 and belt 25. . Between the rollers 22, a bellows 125 is provided for adjusting the tension of the .V 30 belt / belts 25. The load / bearing unit 24 is connected to a load cylinder 127 by a pivoting support arm 126, which causes the unit 24 to pivot 108634 9 in a circumferential direction of the rolls 15. Through the loading cylinder 127, the desired load / bearing for the roller 15 is also provided.

The unit 24 is connected to a carriage structure 128 which moves on the transmission carriage 129 of the cylinder 123 by a linear guide 130 which causes the movement of the unit 24 in the upward direction of the roll 15 and which affects the basic roll geometry. The support carriage 129 of unit 24 can also be displaced in the width direction of the roller 15 by guides 131 attached to the fixed support beam 132.

10, as shown in Fig. 3, the roller support rollers 16 are adjacent to each other and their rotation axes are parallel. In Fig. 3, for reasons of clarity, the structures associated with the central winding of the rollers 15 are omitted. In the exemplary embodiment shown in the figure, the web is wound onto four rolls 15, two rolls 15 through each support roll 16. The device 20 consists of parallel load / support units 24 in the width direction 15 of the roll 15. The units 24 of the device 20 are freely group As described in the previous figure are; The units 24 are movable in the width direction of the roller 15 by the guides 131. In the figure 20 of the device 20, the units 24 are shown in the position in which they are located. In the non-rewinding situation, the other units 24 are shown in the positioning at the end of the rewinding. ·. ·. you.

Each unit 24 is independently controllable, whereby the resulting roll 15 can be profiled as a function of support or support, gravity or unit 24. .. as a function of the resulting printing, and also by surface drawing and, if desired, also by the center drawing.

•; Fig. 4A schematically shows the initial step of winding. The web is rolled in •. 30 through a nip between the roll 16 and the winding core 14 and the roll is formed around the core 14. The unit 24 of the device 20 supports the sleeve 14 in its position in the winding start position 108634 and loads the sleeve 14 against the reel roll 16. The load is obtained by a cylinder 227 which is mounted on a carriage 229 of the device 20 which is in its upper position.

As shown in Fig. 4B, as the winding progresses, the unit 24 first moves in a substantially linear direction in the radial direction of the roller 15 and supports and loads the roller 15 formed around the core 14 and tensiones the web W by surface tension. At this point, the movement of the unit 24 occurs mainly in the plane passing through the hubs of the support roll 16 and the roll 15. As the diameter of the roller 15 increases, the unit 24 moves linearly with the guides in the carriage 229 (not shown). The load is handled as in connection with Figure 4A. The reel 15 diameter increases its ends articulated to the device 20, so-called. Rider, begins to rotate downward arrow R direction. The rotation of the device 20 is achieved, for example, by hydraulic cylinders attached to the ends of the beam (not shown).

As shown in Figure 4C, as the roller 15 grows and the roller progresses, the device 20 follows the circumference of the finished roller 15 in a substantially curvilinear motion, supporting the formed roller 15 and tensioning the web via surface tension. Device 20 is rotated,; Further, as a function of the diameter of the roller 15 and by means of the cylinder 227 of the unit 24 and the carriage 229, contact and loading are maintained against the finished roller 15.

20

In Figure 4D, the device 20 is in its final position with the reel 15 almost complete. The device 20 supports the finished roll 15 and influences the tension of the roll 15 to be manufactured by means of a surface draw. When the roller 15 is complete, the device 20 also acts as a roller stopper to prevent the roller 15 from rolling onto the floor with the seats open for replacement.

If necessary, the device 20 also functions as a lowering device for the roller 15 during the rollover changeover step. The device 20 is turned into its lower position and the support / support of the roller 15 is taken care of; with a cylinder 227 on the print roller 229.

.... The units 24 shown in Figures 4A-4D are supported by linear guides and bearings 30 on the print roll bar 229 such that the units 24 can be moved as desired. locations in the machine width direction.

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The basic principles of the process steps shown in Figures 5A-5D and 6A-6D are similar to those shown in Figures 1A-1E and 4A-4D and will be described in more detail below. specific features of the application examples shown in the figures.

5A illustrates a winding start situation in which the unit 24 loads the core 14 against the winding roll 16 and the loading is achieved by a cylinder 327 attached to the print roller 329. The print roller 329 is in its up position.

In the situation shown in Fig. 5B, the diameter of the roller 15 is increased and the unit 2410 is loaded and moved by the cylinder 327. The initial almost linear loading direction is also achieved by rotating the press roll bar 329 as a function of the roller 15. The press roller beam 329 is pivoted at its ends and is moved by hydraulic cylinders mounted on the ends of the beam 329 (not shown).

5C, as the diameter of the roller 15 further increases, the print roll bar 329; is rotated to its lower position while the unit 24 is controlled by a cylinder 327 attached to the carriage 329 while maintaining contact with the circumference of the roller 15 and also maintaining a certain load between the unit 24 and the roller 15.

,:. In Figure 5D, the beam 329 is in the down position and the support / support of the roll 15 is managed by the cylinder 327 on the print roller 329.

The units 24 shown in Figure 5A-5D are supported by linear guides and bearings on the print roll beam 329 such that the units 24 can be moved to desired locations in the machine width direction (not shown).

6A, the unit 24, i.e. the press roller, loads the core: '' 14 against the reel roll 16 and the load is achieved by the cylinder 427. The device 20 is in the lower *: position.

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shown in Figure 6B, increasing the diameter of the roller 15 in accordance with the rider 429 in unit 24 is moved linearly in the direction of the arrow R6 as a function of the diameter of the roll 15. The beam 429 moves on linear guides at the ends of the beam and is moved, for example, by hydraulic cylinders at the ends (not shown). The loading of the roller 15 5 is handled as described in connection with Figure 6A.

As shown in Figure 6C, as the diameter of the roller 15 continues to increase, the press roll bar 429 and the rigid system formed by its units 24 are guided / moved such that the unit 24 is in constant contact with the periphery of the finished roller 15. In other words, beam 429 is moved back toward the bottom! in its position, and simultaneously, the lever assembly 426 and the unit 24 are moved by a loading cylinder.

In Fig. 6D, the press roller bar 429 is in the down position and the lever assembly 426 and 15 on the unit 24 are provided to support / support the roll 15 during the final roll. The support is provided by a loading cylinder.

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The units 24 shown in Figures 6A-6D are supported by linear guides and bearings on the print roll bar 429 such that the units 24 can be moved to desired positions in the machine width direction (not shown).

The embodiment 24 of the unit 24 shown in Figure 7A comprises two rolls 22.

The embodiment example of unit 24 shown in Fig. 7B includes two so-called. soft rolls 25 22 such as those disclosed in, for example, DE-A-4,035,054 and DE-GM-9,021,791.

In the embodiment shown in Figure 7C, unit 24 comprises two rolls 22, one or both of which are provided with drive 223. An endless belt 25 is wound around the rolls, the tension of which is adjusted, e.g., by a bellows arrangement. a bellows 225 disposed between two pivotable support plates 224.

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The unit 24 thus forms a belt roll consisting of rolls 22 parallel to the roller 15 and the support roll 16, which are surrounded by one or more axially aligned belts 25.

5 The closed contact geometry required during the initial winding is achieved by means of the support roll 16 and the rolls 22 of the unit 24 using a low belt tension relative to the load applied to the roll 15 by the unit 24. The belt 25 then has a higher contact pressure on the rollers 22 than the rest of the belt 25 and the position of the roller 15 is stable.

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As the roll becomes larger such that as its diameter increases, increased rigidity eliminates the need for support of the sleeve and the increased mass of the roll eliminates the need for additional load, whereby unit 24 can be moved to support the roll. The diameter of the roll is then generally greater than 0.4 m.

15

By changing the tension of the belt (s) 25, a desired pressure distribution is obtained, in the contact area of the roller 15 and the belt 25.

In addition to the pressure of the winding nip, the tension or hardness of the roller 15 can be controlled very well: 20 effectively from the belt (s) 25 by the circumferential force acting on the roller 15.

'. With the contact force of the belt (s) 25, a circumferential force can be transferred to the roll 15 to cause sliding I between the roll 15 and the incoming paper web in the area of the contact of the winding nip N, i.e. support roll 16 and paper roll 15. Hereby, if desired, the roll paper on the surface of the roll 15 can be tightened / loosened and the tension, i.e. hardness, of the roll 15 to be manufactured can be controlled by the power of the belt (s).

Suitably selected surface materials for the belts 25, e.g., rubber, provide a frictional force greater than that of the paper layers in contact between the paper: and the belt 25. The belt 25 can thus be used to tighten the roll 15 when the circumferential force exerted by it is greater than the frictional force between the paper layers.

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By means of suitably tensioned belts 25, evenly distributing the contact pressure across the contact area of the entire belt 25 and roller 15, the roller 15 can be supported in practice with a force greater than 10 kN per meter per roller width.

Alternatively, the device 20 and its unit may be provided with various operating systems known to those skilled in the art, for example, of the following types: 1. Units 24 on the same side of the reel are actuated from a common power shaft by a belt drive system.

2. The unit 24 on each roll 15 to be manufactured has one or more drive motors. The motors or motor on one roll 15 form one drive group. The power supplied to each drive group can be controlled independently of each other.

15 3. Each unit 24 has a motor on one or both rollers. Rollers. the drive can be electronically coupled to units per roll of paper. The adjustment possibilities are similar to those of option 2, in addition, a separate unit-specific drive control can be used for profiling in the roll direction. Usage: I | .: The choice of 20 systems will be influenced on a case-by-case basis by quality standards and costs.

Separate roller-specific drive groups allow roller tension to be: * independently adjusted.

As shown in Figs. 8A-8C, two rolls 22 are surrounded by a belt / belts 25 in the 25 axial direction of roll 22, as the unit 24 is pressed against the paper roll 15, the contact force Fu is transmitted to the surface of roll 15 Tighten -:. By appropriately straps 25 to achieve the desired contact pressure distribution between unit 24 and roller 15. The unit 24 can compress the paper roll 15 with the desired size: · with the force without causing any damage to the roll 15.

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The foregoing compression is necessary when applying to the surface of the roll 15 to be manufactured a circumferential force which, unlike the force exerted by the center actuator, is independent of the diameter of the roll 16. Even large roller 15 diameters can be controlled by circumferential force.

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8A, the belt 25 running around the rollers 22 is loose so that it supports the core 14 in place against the support roll 16.

In the winding step of Figure 8B, the unit 24 is loaded with the resulting roll 10 of paper 15. The belt 25 passing around the rollers 22 of the unit 24 is tightened to provide the desired contact force distribution Fu.

Fig. 8C illustrates the situation at the end of the winding, in which unit 24 is loaded and supported on the resulting paper roll 15. The tension 25 of the belt 15 passing around the rolls 22 is adjusted to the desired contact force distribution Fu and the effective force distribution at nip N

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9 fitted to a prior art device shown in Fig. 9; According to Example 20, a beam 51 extending over the bearing width of the units 24 is secured at its ends to the support arms by means of a bearing 52 allowing rotation of the beam.

; y The support arms 53 pivot about the fixed pivot point 54 on the machine frame. The support arms 53 form the guides for moving the bearing housings 52 by means of the movement screws 55. The movement screws are equipped with actuators and measuring sensors. At bearing point 25, at one end, beam 51 engages the shaft 51 at its other end with a worm gear and a screw configuration.

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:. · 'Position with respect to bearing housing 52 and guide rail 53. A measuring sensor connected to the drive unit detects the angle rotated by the beam 51 with respect to the guide.

: · The axes of beam 51 are also beared with freely pivotable lifting arms 56. The other ends of the lifting arms 30 are, respectively, mounted on carriages 57 which are displaced; by means of screws 58 on guides 59 attached to the machine frame. Suitably, control of the loading force of the rolls 22, the tensioning of the belts 25, the applied peripheral force and the relief force of the 5-sockets may be suitably incorporated in the same program. When the rollers 15 have been completed, the roll bar 51 is lowered to its lowest position and the cover 60, which served as a protective cover during roll, is placed on the roll equipment in the floor position. When the rollers 15 have been removed and the new cores have been placed, the door is raised to its upper position. The roller assembly is moved to load the cores and new rolls are started to roll. The required control of the movement of the roller equipment may be implemented, for example, by the slider structures shown in the figures. The motion path of the roller equipment is controlled by the processor to positions determined by the diameter of the roller or the stage to be performed. Continuous detection of the position and position of the rollers is done by sensors connected to each motion machine.

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

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Claims (7)

A method of rolling a web, in which method the web (W) is rolled on a sleeve (14) supported by a support roll (16) and by a nip (N) between the support roll 5 (16) and the roller (15) produced , wherein the method of the sleeve (14) is at least partially supported, wherein the method of the sleeve (14) / roller (15) is supported and / or loaded with a position movable device (20), characterized in that the structure of the roller produced is profiled in the method of the width direction and / or the circumferential direction of the roller (15) by means of load and suspension distribution 10 and / or surface tension distribution which is achieved by mediating one or more load / suspension units (24) of said device (20). in Method of rolling a web according to claim 1, characterized in that the load and / or suspension of the roller (15) in the method is controlled by the mediation of contact force provided by the load / suspension unit (s) (24) in the radial direction. of the roll (15) and / or in the width direction of the roll (15). A method of rolling a web according to claim 1 or 2, characterized in, * ··. 20, that the tension in the roller (15) produced is controlled at pre:. the operation at least partially by surface drawing by mediating the load / holding unit (s) (24) of the device (20). * * · Method of rolling a web according to any one of claims 1-3, characterized in that the desired contact pressure distribution between the unit (24) and the roller:: (15) is controlled by the method by means of belt tension. 5. Method according to any of the preceding claims, characterized in: v. hence,! ··· '. In the method, the load / suspension unit (s) (24) is moved by said device (20) in the initial stages of the roll mainly in a pie extending through the shafts of the support roll (16) and the roll (15) produced. substantially in a linear motion for loading and supporting the roller (15) produced in the rolling position, that the load / suspension unit (s) (24) of the device (20) in the process as the rolling progresses is moved downwardly substantially along a path with the direction of the periphery of the roller (15), and the roll (15) produced by the method is supported from below with said unit (24) in the final stages of the roll. | Method according to any of the preceding claims when rolling a web, characterized in that when the roller (15) is completed, the braking means arranged in the center of the sleeve (14) and the position of the roller (15) is controlled by the device (20). . Method according to any of the preceding claims for rolling a web, characterized in that immersion of the roller (15) is carried out in the process of the device (20) in a shifting stage of the rolling. * 1 ♦ * · *