DE102009055352A1 - Roll winding device and method for winding a material web - Google Patents

Abstract

The invention relates to a roll winding device for winding a material web, in particular a paper or cardboard web, onto at least one winding core, preferably a winding tube, to form a winding roll, on which at least one roller mounted in a roller bearing is applied during winding, and at least one movable roller bearing via a Damping means, is connected to a support comprising a cylinder and a piston movably arranged therein. One would like to improve the winding structure and in particular stabilize the conditions in the winding area. For this purpose, it is provided that a frictionless seal is provided between the cylinder and piston. The invention also relates to a particularly advantageous method for winding up a material web.

Description

The invention relates to a reel winding device for winding a material web, in particular a paper or board web, on at least one winding core, preferably a winding tube, to at least one winding roll to which at least one roller mounted in a roller bearing during winding, and at least one movable roller bearing over a damping means, is connected to a support comprising a cylinder and a piston arranged therein movable.

The invention further relates to an advantageous method for winding a material web, in particular a paper or board web, on at least one winding core, preferably a winding tube, to a winding roll, by means of a roll winding device.

The invention will be explained below in connection with the treatment of a paper web. However, it is also applicable to other webs that are similar to handle. These are, for example, but not exhaustive, to webs of cardboard, plastic or metal foils.

Paper webs are produced in relatively large widths of up to more than 11 m in a paper machine. The production is almost endless. In this case, the machine direction of the paper machine defines the longitudinal direction for all machines and devices located in the paper factory and the transverse direction perpendicular thereto in the horizontal plane. To simplify the present document, the longitudinal direction is referred to as the X direction, the transverse direction as the Y direction, and the vertical direction perpendicular to a vertical plane defined by these two directions are referred to as the Z direction. At the end of the paper machine, the paper web produced is wound in full width onto a winding core. This winding core is replaced cyclically, usually during production. The resulting web-width winding roll is commonly referred to as mother roll or full tambour. In order to be manageable for a later user, for example a printing company, the paper web wound on a mother roll has to be cut into several parallel partial webs whose widths are suitable for the respective later user. These widths can vary greatly from case to case, so that the division of the paper web is usually made according to an individually definable pattern. The partial webs are then wound into winding rolls, which are called Teilbahn- or finished rolling and are issued together as a so-called roll throw. The pattern can be changed from roll throw to roll throw. The slitting and winding is advantageously carried out in a single machine, the so-called slitter, which is generally referred to as a reel winder for the purposes of the present application, since, for example, even in the pure rewinding of a mother roll without format changes at least a portion of the possible winding problems can occur.

A roll cutting device essentially consists of a unwinding device, a cutting section and a roll-up device, wherein the cutting section has a number of mostly disk-shaped cutters adapted to the possible pitches.

In the embodiment of a roll-cutting device, the person skilled in the art distinguishes between two basic types of construction, namely the support roller and the back-up roller.

Characteristic of the carrier roller type is a retractor, in which the entire roll throw in a winding bed, which usually consists of two support rollers, is wound on winding tubes. The winding tubes of the roller throw can be held by means of tensioning or guiding heads or, in rarer cases, through winding shafts inserted into the winding tubes. The rolls are wound up together, as a complete throw. As a rule, this is done by means of a circumferential winding, for which purpose at least one of the two support rollers can be driven. If a winding shaft is used, a center winding or a combination of both can also take place.

In a roll-up type characterizing the backup roller type, each individual roll to be wound is wound in a separate winding station. The rollers are supported during the winding process on a support roller. Depending on the design, one to two back-up rolls and occasionally additional support rolls are used. The Teilbahn- or finished rolls are wound in their winding stations on winding tubes, which are each held by an imported pair clamping or guide heads. The rollers are driven either via these clamping or guide heads with center winding or on the at least one support roller with circumferential winding or combined.

For the purposes of the present specification, winding rolls wound around a band and / or around the forming winding rolls from a support into a support position are also understood to mean supporting or supporting rolls. Both types of machines generally use additional pinch rollers, especially in the early stages of each Winding provide a desired level of winding hardness.

The type specification of the reel winders to be used is usually dependent on the type of paper to be produced and the desired winding quality. Regardless of this, the operator of a paper mill faces another, fundamental problem:
To ensure competitiveness and achieve high productivity, efforts are being made to achieve high production speeds. In this case, all devices or machines located in the production chain of a paper factory have to be oriented to the production speed or their production output predetermined by the paper machine. As a paper machine, apart from failure cases, works continuously, it is difficult for a discontinuous roll winder to follow the speed provided, since set-up, acceleration and deceleration times are relatively frequent in accordance with the task of size reduction and therefore only by significantly higher production speeds are to be compensated.

However, such high demands on the winding speeds involve a high risk potential due to vibrations occurring. The winding to be produced hardly assumes an ideal round shape. Small winding errors, for example, due to slight profile fluctuations of the paper web to be wound, add up with each full wrapping. In the further course, the winding rollers form hardenings in these areas. Due to the periodic recurrence of the respective winding defects of the rotating coil, vibrations of corresponding frequency are formed depending on its circumference and peripheral speed.

With increasing production speed, the excitation frequency is always greater (with increasing peripheral speed, the same position of the winding more and more often passes through the same winding gap) and the exciter amplitude is increasingly violent (at the same time as its winding diameter and its unevenness and the effective weight increases). In this case, the probability increases greatly that form during this complex process vibrations that are suitable (via integer harmonics) to form resonances with the support rollers of the reel winder, which can lead to a fierce, sometimes rapid "rocking" of the entire machine. As is known, in extreme cases, windings can be ejected from the winding bed.

With today aimed at production speeds of 3000 m / min is hardly the economically viable option to interpret the natural frequencies of the support rollers involved so that a possible Eigenstimmulierung the system can be reliably excluded.

Overlaying this occurs even more vibration problems. For example, the forming winding roll assumes the state of an anisotropic rotor. The reason for this are transverse profile fluctuations of the paper web, which add up with each wrapping. It can then come with each revolution also contact losses or at least different line loads. Paper-technological correlations, such as compressibility or coefficient of friction of the web, then lead to inhomogeneous roles.

Already at a semi-critical speed, which corresponds to about half the resonance speed of the role, it comes to strong deformation of the role. These deformations are also referred to as s2-stroke or 2f-stroke. They are again in massive interaction with the other components involved in the entire winding system and may be jointly responsible for an eccentric roller structure.

In order to combat the resulting vibrations and the subsequent damage, it is known to dampen a roll acting on the winding or rolls to be wound in order to extract energy from a vibration process forming. The aim is to improve the winding structure, but primarily pursues the goal of avoiding dangerous Wickelrollenauswürfe. Therefore, it has always been assumed that one must avoid resonance-critical states by effectively counteracting already dangerous vibration ranges, so that damping systems according to the state of the art are designed to be particularly effective in working to achieve critical vibration states. In practice, however, this means that the reel winder devices, in particular winder devices, are quite frequently operated in marginal areas during operation. Once stimulated or self-excited bobbins can only be calmed down to a level just needed to finish the winding process usually safe. However, the winding structure is often not satisfactory as a result. Particularly in the case of paper grades critical for winding, that is to say for paper types whose coefficient of friction is above 0.55 and in particular above 0.7, the winding structure as a result is frequently still unsatisfactory under high production speeds. Derived from this is the productivity, that is primarily the winding speed, barely above a safely implementable level of 2800 m / min steigerbar.

The invention is therefore based on the object to further develop a device for winding a web on a winding roll such that the winding structure improves and in particular the conditions in the winding area are stabilized.

According to the method, the object of the invention is to improve the winding structure over long process sections and to stabilize the winding process.

The object of the invention is achieved according to the device in that a friction-free seal is provided between cylinder and piston.

A friction-free seal is understood to mean a seal which is friction-free in the technical sense, or at least largely friction-free. This means that negligible small coefficients of friction should be included in the term "frictionless".

In this way, it is possible that the damping means react even to the slightest excitation. This makes it possible for the first time to effectively combat even the smallest vibration-induced initial errors in the forming winding structure or ideally to prevent. A frictional seal acts namely, to overcome their static coefficient of friction, such as a locking of the damping means. This means that the winding rolls to be wound, as long as on a "rigid" winding device, so a rigidly mounted roller, are wound until the static friction of the seal is suddenly overcome, causing a momentary acting, additional concern in Wickelrolleaufbau. The Haftreibbeiwert commercially available seals may well be 0.6 to 0.85, so here first considerable energy is rigidly passed through to the support, or reflected in adverse winding structure, in particular in non-circularity and regional hardenings until the damping agent begins to take effect ,

A damping means deprives a system of strain energy work. In this way, the amplitudes of the vibrations and thus the risk of dangerous resonances are reduced. For technical implementation, the energy is usually converted by friction into thermal energy, which is why it is particularly surprising according to the invention to exclude such an effect at a very specific location in order to achieve the best possible damping effect. A damping means, which has a cylinder and a piston movable therein, comprises at least one pressure chamber, in which a damping medium is that under piston load a pressure can be suspended and its friction work, and thus its degree of damping, generally adjustable or adjustable via a valve position is.

A winding roll which can be calmed from the beginning by means of a device according to the invention forms substantially more homogeneously and causes far less self-excited vibrations in the further winding process. The whole process is much quieter and more stable and produces higher quality bobbins. Also, higher production speeds and sharper acceleration or deceleration processes are possible.

It is preferred that the cylinder is designed as a double-acting damping cylinder. In this way, the positive and negative amplitudes of nascent or adjacent vibrations can be reduced particularly effectively.

It is advantageous if the friction-free seal is designed as a non-contact seal.

A seal is referred to as non-contact, when the two sealing gap forming parts with and without movement and without auxiliary energy are permanently separated from each other by a finite gap.

Among other things, such seals offer the advantage of being wear-free and of having no changes in their sealing effects. Also, heat transfer of the sealing gap forming parts are low and no restriction on permissible relative speeds to observe.

Thus, slip-stick effects over the entire winding process are effectively avoidable even with permanent dynamic loading of the reel winder.

It is advantageous if the non-contact seal is designed as a gap seal, labyrinth seal or sealing air seal.

Gap seals offer the advantage of relatively simple production, although here, of course, to ensure compliance with predetermined tolerances and an accurate machining of the surfaces. Here are also tears of, from the sealing medium used, in particular from the damping medium used, in particular from the damping oil used, formed, sealing film at a correctly selected ratio of gap height and gap length hardly expected.

Labyrinth seals offer an increased sealing effect, since the effective gap length is artificially increased and the sealing medium undergoes several deflections.

In both types of seals, it makes sense for a return of the sealing medium, ie in particular the damping medium to provide from the sealing gap in the pressure chamber of the damping means. Sealing air seals provide the safest shield against leakage and penetration at the sealing point, but the sealing air must be introduced via a supply unit in the sealing gap.

It is particularly advantageous if the non-contact seal has a gap height which is between 0.008 mm and 0.1 mm, preferably between 0.025 and 0.065, very preferably between 0.03 and 0.045.

Such gap heights offer a good compromise between high sealing effect and reasonable production costs.

Particularly low gap heights allow for higher pressures. Furthermore, it is preferred in this context that the gap length is between 5 mm and 350 mm, preferably between 12 and 100, very preferably between 18 and 60. For labyrinth seals, the length of all center lines is added.

Such combinations offer high to very high sealing effects and do not make too high demands on the sealing medium, in this case the damping medium.

Advantageously, the at least one roller is a support roller, a support roller or a support roller.

For the purposes of the present specification, winding rolls wound around a band and / or around the forming winding rolls from a support into a support position are also understood to mean supporting or supporting rolls.

Roll-wrap devices equipped with carrier rolls are generally the most vibration-prone and provide the primary target field of the present invention.

While backup roller winders are generally not as susceptible to vibration, they are used to handle particularly delicate and critical types of paper, and for that reason can also provide an important field of use for the present invention.

Support rollers are used in addition to their basic function of increasing the winding hardness at the beginning of the winding process, today often to stabilize the winding rollers already in the progressive stage of education and are then increasingly equipped with a damping device. Taking into account the effect mentioned at the outset that a damping means which has a frictional seal acts like a rigid bearing until the static friction is overcome, the platen roller acts in this phase as a disturbance variable additionally acting on the winding rollers. This is inventively avoidable for the first time.

It may be advantageous if the damping means forms part of a passive damping device.

A passive damping device generally offers the possibility of reducing applied vibration energy, that is to reduce the amplitude deflection of the present vibration state. In particular, using the present inventive concept, such a damping device can be very effective, since even the lowest vibration energies are at least partially consumable by means of a device according to the invention. Then offers a passive damping device has a high impact at a very clear cost.

It is also conceivable that the damping means forms the only part of a passive damping device.

It may also be advantageous if the damping means forms part of an active damping device.

While a passive damping device is naturally subject to a "feed-back" principle, that is, always can only be reactively effective, with an active damping and a "feed-forward" principle can be implemented, in which one from measurement signals or empirical values forward looking at vibration acts, or counteracts this.

For this purpose, for example, the (counter) pressure exerted on the piston via the damping medium can be changeable and counteract, for example, an impending load. Since the piston has a mass, it is about rapid pressure changes to vibrate, which can be brought into superposition with the vibrations to be combated, whereby they are reducible. Then one speaks technically correct of a repayment, which should be included in the meaning of the present document by the term "damping".

With particular advantage it is ensured that a part of the damping device is formed by a rubber element.

Rubber elements have in principle a good damping behavior compared to machine-generated vibrations. Often, however, their applicability is structurally meaningful little feasible because of spatial limitations. Their field of work is at least indirectly related to the so-called loss factor D _L , which is dependent on material and load and can assume meaningful values of between 0.20 and 0.35 for various types of rubber with respect to a resonance range. Thus, from this loss factor D _L and the necessary damping surface is at least indirectly dependent. The rubber deformation element, which absorbs deformation, finally emits the extracted energy into heat. However, a heated rubber element then has other damping properties. Finally, under continuous load, such a rubber element tires relatively quickly.

However, if the rubber element is only loaded with a vibration region tailored to it, by means of another functional group of the damping device, it can perform excellent damping work for a long time. The rubber element also performs relieving work with respect to moving machine elements, in particular the piston unit of the damping means.

It may be preferred that the roller bearings are arranged with a finite radius, in particular between 350 mm and 2050 mm, very particularly between 600 mm and 900 mm, movable about a pivot point.

In this way, there is another way to detune the vibration system from the at least one roller and the winding rollers. Thus, in particular the upper range of action of the damping agent can be limited quantitatively and synergy effects can be achieved.

Likewise, it may be preferred that the roller bearings are arranged to be linearly movable.

In this way, the sealing area is protected and ensures a safe and wear-free function particularly well. In the opposite direction, therefore, a synchronous operation of the damping means can be ensured on the suspensions of the movable roller bearing.

With very particular advantage, the roller bearings are so arranged linearly movable, which is a, with the piston operatively connected, piston rod largely free of transverse forces by a, defined by the intended seal, the sealing area is movable.

Advantageously, it is ensured that an alignment device is provided, by means of which a direction of movement of the at least one roller bearing can be aligned.

In this way, an exact adjustment is ensured both during startup of the reel winder, as well as after prolonged use. It may also occasionally be necessary that the direction of action of the damping means - which should point wise in Niprichtung should be readjusted or even changeable.

It may also be advantageous if the piston rod and the cylinder have a surface with a particularly low coefficient of friction at least in the sealing region and, in particular, are mechanically and / or chemically tempered for this purpose.

Thus, it is also possible to reduce the marginal-layer frictional forces of the damping medium on the active surfaces which are usually negligible in practice.

As mechanical measures to fine tuning, Hohnen, roles or equivalent processing methods come into consideration. In the case of chemical tempering, in particular electrolytic surface refinements and surface coating with particularly low coefficient of adhesion must be mentioned.

It is of great advantage if the roller bearing is connected by means of a frictionless movable spring assembly movable with the support.

In this way it can be ensured that the damping device can be used without an initial fault. Thus, the wide damping range provided by the damping means, in particular the damping capability of even the smallest excitations, can be transmitted to the entire damping device. Also, sources of error in the structural design of the damping device can be avoided.

Advantageously, it is ensured that an alignment device is provided, by means of which a direction of movement of the at least one roller bearing can be aligned.

In this way, an exact adjustment is ensured both during startup of the reel winder, as well as after prolonged use. It may also occasionally be necessary that the direction of action of the damping means - which should point wise in Niprichtung should be readjusted or even changeable.

It may also be advantageous if the piston rod and the cylinder have a surface with a particularly low coefficient of friction at least in the sealing region and, in particular, are mechanically and / or chemically tempered for this purpose.

Thus, it is also possible to reduce the marginal-layer frictional forces of the damping medium on the active surfaces which are usually negligible in practice.

As mechanical measures to fine tuning, Hohnen, roles or equivalent processing methods come into consideration.

In the case of chemical tempering, in particular electrolytic surface refinements and surface coating with particularly low coefficient of adhesion must be mentioned.

With particular advantage, it is ensured that the damping means has a power range which can be defined by a damping capacity of even the smallest movements of the roller bearing of less than 5 mm per second, preferably less than 1 mm per second, more preferably less than 0.5 mm per second ,

Thus, resulting vibrations are effectively attenuated at the earliest stage of their development.

Also, such a transition from the periodically over the present macro vibrations superimposed micro-vibrations, to be reflected in the winding structure macrovibrations can be prevented. A building up of damage-causing vibrations, here called macro-vibrations, thus preventable.

In this case, the present document also speaks of macro-vibration ranges and micro-vibration ranges, the macro-vibration ranges are to describe the commonly perceived, resulting oscillations, while under the micro-vibrations superimposed vibrations, usually higher frequency, sometimes over 8 Hz or 10 Hz, and lower amplitude understood ,

• – Frequenz der Kolbenbewegung und/oder Walzenlagerbewegung
• – Amplitude der Kolbenbewegung und/oder Walzenlagerbewegung
• – Viskosität und/oder Temperatur und/oder Wassergehalt und/oder Luftgehalt und/oder Festpartikelgehalt des Dämpfungsmediums
• – Druck und/oder Verlustmenge des Dämpfungsmediums und die erfassten Daten einer Steuer-/Regelungseinheit zuführbar sind. In ganz bevorzugter Weise steht die Steuer-/Regelungseinheit mit einer übergeordneten Steuerungs-/Regelungseinheit in Verbindung.

Furthermore, it is advantageous if at least one sensor, preferably a plurality of sensors for detecting at least one, preferably at least two, of said parameter is provided:

• - Frequency of piston movement and / or roller bearing movement
• - Amplitude of the piston movement and / or roller bearing movement
• - Viscosity and / or temperature and / or water content and / or air content and / or solid particle content of the damping medium
• - Pressure and / or loss amount of the damping medium and the detected data of a control / regulating unit can be fed. Most preferably, the control / regulation unit communicates with a higher-level control unit.

By recording individual, in particular several, of the mentioned parameters, a reliable data supply of the control unit is ensured and modern control mechanisms can be used. In particular, the control / regulation unit is the instantaneous requirements present in the process quickly adaptable and miscalculations due to changing process parameters can be avoided.

Advantageously, a collecting device for the possibly exiting damping oil is provided, which is preferably in operative connection with a return device, which has a filter device in a very preferred manner.

By means of a collecting device, the clean environment of the damping means is first ensured and meets the first environmental requirements. A recycling facility can lead to significant economic and environmental biological discharge. By means of a filter device, the functionality of the damping means is obtainable and wear preventable.

It may be advantageous if the cylinder has a change unit for acting on the viscosity of an electro-rheological damping oil or is at least in operative connection with such a change unit.

In this way, the damping behavior of the damping means in an additional degree of freedom can be changed and the requirements currently applied in the process adaptable. In particular, resonant oscillation areas are quickly bypassed or passable. Also, the entire working range of the damping device is expandable.

The inventive object of the invention is achieved in that the forming in the winding process between winding rollers and adjacent rollers and are transmitted via the roller to a roller bearing vibrations over their entire vibration range attenuated.

In this way, the entire winding process can be calmed, which promises best winding results. In particular, vibrations, which have noticeable effects on the winding result during their formation process. In this case, even the smallest excitations, in particular in the range of less than 1 mm per second, preferably of less than 0.5 mm per second influence. For this purpose, it is preferable to use a roll winding device according to one of the device claims.

It is of great advantage if the roller bearing is attenuated transition-free over the entire, transmitted from the winding roller to the roller bearing, vibration frequency range.

This is the best prerequisite for a uniform and high-quality winding structure. In particular, one would like to avoid an abrupt transition by inserting the damping process in the existing vibration process, since such an abrupt onset of effectiveness of the applied damping means and / or devices often initially affects the winding process as a disturbance. Instead, in this way, the vibrations throughout the entire winding process in tight, well manageable limits.

Preferably, the degree of damping is changed continuously or discretely via a pressure change of a pressure medium during the winding process.

The degree, ie the intensity of the acting damping measures, on the other hand, can be changed without any interfering influence on the winding process. A change in the degree of damping can significantly widen the range of action of the damping device / means used, and the effects can be reduced to individual oscillating elements, in particular winding rollers and rollers, of critical critical vibration ranges by rapid bypassing or driving through.

With particular advantage, the damping process is at least partially controlled high-frequency and / or regulated.

In this way, the user can also effectively counteract oscillations that are composed of overlapping vibrations. In particular, he can influence the micro and macro vibrations already described in this document. Also, the small initial excitations occur at the beginning of the winding process frequently high frequency and often with only minimal movement speeds of less than 1 mm per second, often even less than 0.5 mm per second.

Further advantageous embodiments of the invention will become apparent from the description, the embodiments and the figures illustrated. The invention is explained in more detail below with reference to exemplary embodiments with reference to the drawings. In these show:

1 Reel winding device

2 roll arrangement

The in the 1 and 2 illustrated preferred embodiment of a roll winding device according to the invention 1 is realized in connection with a carrier roll winding device having a roller assembly in the region of its winding. The roller arrangement has two rollers designed as carrier rollers 6 on, of which at least one is drivable. Preferably, both rolls 6 drivable and stand on a common control unit 19 in connection. It has proven useful if, in the running direction, the material web M, in particular the paper web, ie in the x direction, the first roller 6 speed controlled and the second roller 6 is torque-controlled. The axes of the rolls 6 are in roller bearings 4 . 5 stored, which can also be located at different height levels in the z-direction. Furthermore, the rollers 6 have different diameter.

Of course, at least one of the two rolls 6 also have a, on the material web M become effective coating or sheathing, while, for example, the other roller 6 is designed as a steel roller.

In addition to the support rollers 6 form the at least one on a winding core, here a winding tube 2 winding roll to be wound 3 and a not always necessary platen 6 essential elements of a winding arrangement of a roll winding device. For the sake of clarity is in the 2 Roller arrangement shown in detail on the representation of the support roller 6 dispensed with, although with her as it were on the forming roll 3 can be acted upon.

The two movable roller bearings 4 . 5 the rollers 6 are about damping means 7 with the support 8th connected. The damping means shown in the picture on the left 7 is part of an active damping device 13 that have a control unit 19 Also can be controlled so that they can counteract vibrations occurring with targeted vibration movements.

To change the degree of damping is the active damping device 13 additionally with a change unit 17 equipped on the viscosity of the cylinder 9 the active damping unit 13 located, as a pressure medium 18 effective electrorheological oil, can act. The damping behavior then changes with the viscosity. In addition to this particularly elegant and quick way, the degree of damping can also be accomplished via discrete or continuously adjustable valve openings in the cylinder area or its supply and discharge lines.

The damping means associated with the roller bearing shown in the right-hand section of the picture 7 works with conventional hydraulic oil as a damping medium 18 and is part of a passive damping device 12 which is also a rubber element 14 includes.

Through the cut representation of the right damping means 7 is good for both damping means 7 executed, general construction of cylinder 9 and the therein against a pressurizable damping medium 18 movable piston 10 to recognize. The between the piston 10 which also includes a piston rod, and the cylinder 9 necessary sealing surfaces are called frictionless seals 11 , formed in the form of non-contact gap seals. Their gap heights h are between 0.025 mm and 0.035 mm. This is the damping means 7 even suitable for even the smallest excitations, by means of oscillating movements of less than 0.15 meters per second, can be effectively translated into strain-inducing work.

For moving arrangement, the roller bearings are spring arrangements 15 connected to the support, here also the abutment for the damping means 7 or damping devices 12 . 13 forms. The spring arrangements 15 are symmetrical about the roller bearings 4 . 5 arranged and leave a, in the technical sense, frictionless, linear movement of the roller bearings 4 . 5 to. For this purpose, the spring arrangements consist of individual leaf springs, which can deform without contact. The strength of the individual leaf springs can be the same or different, their characteristics take on a degressive or progressive character. The individual leaf springs are interchangeable and the total spring strength thus selectable in discrete steps. Also, via the spring arrangement can finally influence the degree of damping.

So that the control / regulation unit 19 can work correctly are three sensors 16 provided in the present case, the frequency and the amplitude of the roller bearings 4 . 5 , as well as different parameters of the two different print media.

From the illustrated embodiments may be departed from in many ways, without departing from the spirit of the invention.

LIST OF REFERENCE NUMBERS

1

Reel winding device

2

mandrel

3

reel

4

roller bearings

5

roller bearings

6

roller

7

damping means

8th

support

9

cylinder

10

piston

11

poetry

12

Passive damping device

13

Active damping device

14

rubber element

15

spring assembly

16

sensor

17

change unit

18

print media

19

Control / regulation unit

H

gap height

M

Material web (paper web)

x

x-direction

Y

y-direction

z

z-direction

Claims (16)

Roll winding device ( 1 ) for winding a material web, in particular a paper or board web (M), on at least one winding core, preferably a winding tube ( 2 ), to at least one winding roll ( 3 ), at least one of which is wound in a roller bearing ( 4 . 5 ) mounted roller ( 6 ) is applied, and at least one movable roller bearing via a damping means ( 7 ), with a support ( 8th ), which is a cylinder ( 9 ) and a piston arranged therein ( 10 ), characterized in that between cylinders ( 9 ) and pistons ( 10 ) a frictionless seal ( 11 ) is provided. Roll winding device ( 1 ) according to the preceding claim, characterized in that the friction-free seal ( 11 ) is designed as a non-contact seal, in particular as a gap seal, labyrinth seal or sealing air seal. Roll winding device ( 1 ) according to the preceding claim, characterized in that the non-contact seal ( 11 ) has a gap height (h) which is between 0.008 mm and 0.06 mm, preferably between 0.020 mm and 0.045 mm, more preferably between 0.025 mm and 0.035 mm. Roll winding device ( 1 ) according to one of the preceding claims, characterized in that it is in the at least one roller ( 6 ) around a back-up roll, a support roll or a platen roller. Roll winding device ( 1 ) one of the preceding claims, characterized in that the damping means ( 7 ) a part of a passive damping device ( 12 ). Roll winding device ( 1 ) according to one of the preceding claims, characterized in that the damping means comprise part of an active damping device ( 13 ). Roll winding device ( 1 ) according to one of claims 1 to 5, characterized in that a part of the damping device by a rubber element ( 14 ) is formed. Roll winding device ( 1 ) according to one of the preceding claims, characterized in that the at least one roller bearing ( 4 . 5 ) Is arranged linearly movable. Roll winding device ( 1 ) according to one of the preceding claims, characterized in that the roller bearing ( 4 . 5 ) by means of a friction-free movable spring arrangement ( 15 ) movable with the support ( 8th ) connected is. Roll winding device ( 1 ) according to one of the preceding claims, characterized in that the damping means ( 7 ) has a power range which, by a damping capacity of even the smallest movements of the roller bearing ( 4 . 5 ) of less than 1 mm per second, more preferably less than 0.5 mm per second is definable. Roll winding device ( 1 ) according to one of the preceding claims, characterized in that at least one sensor ( 16 ), preferably several sensors ( 16 ) is provided for detecting at least one, preferably at least two, of said parameters: - frequency of piston movement and / or roller bearing movement - amplitude of piston movement and / or roller bearing movement - viscosity and / or temperature and / or water content and / or air content and / or solid particle content the damping medium - pressure and / or loss amount of the damping medium and the detected data of a control / regulating unit () can be fed Roll winding device ( 1 ) according to one of the preceding claims, characterized in that the cylinder ( 9 ) a change unit ( 17 ) for acting on the viscosity of an electroreological damping oil or at least with such a change unit ( 17 ) is in operative connection. Method for winding a material web, in particular a paper or board web (M), onto at least one winding core, preferably a winding tube ( 2 ), to a winding roll ( 3 ), by means of a roll winder ( 1 ), characterized in that in the winding process between a winding roll ( 3 ) and an adjacent roller ( 6 ) and over the roller ( 6 ) to a roller bearing ( 4 . 5 ) are damped over their entire vibration range transmitting vibrations. Method according to the preceding claim, characterized in that the roller bearing ( 4 . 5 ) over the whole, away from the winding roll ( 3 ) on the roller bearing ( 4 . 5 ) transmitting, vibration frequency range is attenuated transition-free. Method according to one of claims 13 or 14, characterized in that the degree of damping via a pressure change of a pressure medium ( 18 ) is changed continuously or discretely during the winding process. Method according to one of claims 13 to 15, characterized in that the damping process at least partially by means of a control unit ( 19 ) is controlled at high frequency and / or regulated.

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