DE202005022051U1 - Spreader roll - Google Patents

Abstract

Roller (10) for a web-processing machine with a support core (16) supported in the area of its two ends via a respective bearing (14) and an outer jacket (18), which in its axially central area (20) radially mounted immovably and in the area of its two ends is supported radially adjustable relative to the support core (16) via a respective further bearing (22), the center plane (26 or 28) extending in the radial direction of both the support core bearing (14) and the outer jacket bearing (22) lies axially within the outer jacket (18) and the outer jacket (18) can be adjusted in the region of its two ends by an actuator (30) preferably arranged inside the outer jacket (18).

Description

The invention relates to a roller for a web-processing machine. This may in particular be a machine for producing a fibrous web, in particular paper, board or tissue web. The invention also relates to a web-processing machine with such a roller.

So far, arrangements are provided for the web guide in web-processing machines, in which in particular guide, regulating and spreader rollers are arranged successively. Such a conventional arrangement is for example in the 1 shown in the web direction L before a press roller pair 52 successively a guide roll 54 and a spreader roller 56 are arranged. In the left part of the 1 This arrangement is shown in side view and in the right part in plan view.

Disadvantage of these known arrangements include high investment and maintenance costs.

Due to the simple construction of a guide roller whose components are indeed extremely inexpensive. The disadvantage, however, is that the web run can be adversely affected due to a deflection of the guide roller.

Spreader rolls are used in web-processing machines in order to avoid wrinkling or sagging due to spreading of the material web while the material web is running. Furthermore, spreader rolls are used to guide side by side juxtaposed material webs apart. Parallel juxtaposed material webs can be generated for example by longitudinal cutting a wide web. Such Breitstreckenwalzen are for example from the DE 199 27 897 A1 and DE 10 2004 045 407 A1 known.

Spreader rolls often consist of several individually mounted segments, which bring a high maintenance and are correspondingly costly. In general, the maintenance costs of such a spreader roller make up about 60% of the original price. In addition, the usual spreader rollers have a very slim design and accordingly a low load capacity, so that use as a guide roller is excluded.

Although the most recent designs of spreader rolls based on high-performance plastics have optimized curvatures. However, they have the disadvantage that the constructions in question are not stored torque-free, d. H. the stiction of the machine in question, for example paper machine, is undesirably loaded. For new systems, the occurring moments must be taken into account, which requires costly reinforcements. For existing systems even more complex auxiliary structures are required.

The invention has for its object to provide an improved roller of the type mentioned, in which the aforementioned problems are eliminated. In this case, the roller concerned should be able to fulfill several of the aforementioned functions at the same time. In addition, in particular, the moments introduced into the staging should be reduced to a minimum.

This object is achieved according to the invention by a roller for a web-processing machine, with a supported in the region of its two ends via a respective support core and an outer shell which is mounted radially immovable in its axially central region relative to the support core and in the region of its two Ends is supported radially adjustable relative to the support core via a respective further storage, wherein the radially extending center plane of both the Stützkernlagerung and the outer casing storage axially within the outer shell and the outer shell in the region of its two ends in each case by a preferably arranged within the outer shell actuator is adjustable.

Due to this design, the roller concerned can simultaneously perform the functions of at least two different types of rollers. By corresponding omission of a roller is saved according to space. In general, a cost-saving design is possible.

The combination of at least two functions in a roll brings, as already mentioned, the advantage of considerable cost reductions. In particular, the space of the functional group is reduced, the screening and felt costs are reduced and it must be kept less spare rollers, whereby the maintenance and the cost of spare parts inventory is reduced accordingly. Finally, there is less product diversity, which also reduces costs.

In particular, the torque introduced into the stool is reduced to a minimum, and in the optimal case, it can even be brought to zero. By also the actuator is disposed within the outer shell, resulting in a compact adjustment, which makes it possible to reduce the forces for the adjustment and to control the occurring forces.

• – Breitstreckwalze
• – Leitwalze
• – Regelwalze, insbesondere Bahnlaufregel- oder eine Art Durchbiegungseinstellwalze
• – Spannwalze.

According to a preferred practical embodiment of the roller according to the invention, the actuators are adjustable or controllable in such a way that the functions of at least two of the following types of rollers are simultaneously fulfilled by one roller:

• - Spreader roll
• - Guide roller
• - Regulating roll, in particular Bahnlaufregel- or a kind of deflection adjustment
• - tension roller.

Advantageously, the actuators are so adjustable or controllable that at the same time the functions of a guide roller and a spreader roller are met with the one roller.

It is also particularly advantageous if the actuators are adjustable or controllable in such a way that the functions of a guide roller and a tension roller are simultaneously fulfilled by one roller.

According to a further preferred embodiment, the actuators are so adjustable or controllable that at the same time the functions of a guide roller and a control roller are met with the one roller.

In particular, such an embodiment is also conceivable in which the actuators are adjustable or adjustable in such a way that the functions of a spreader roller and a control roller are simultaneously fulfilled by one roller.

In a further expedient embodiment of the roller according to the invention, the actuators are so adjustable or controllable that at the same time the functions of a spreader roller and a tension roller are met with the one roller.

A further expedient embodiment is characterized in that the actuators are so adjustable or controllable that at the same time the functions of a tension roller and a control roller are met with the one roller.

In order to minimize occurring static loads as well as unwanted vibrations, the roller preferably has an outer diameter ≥ 280 mm, in particular ≥ 300 mm and preferably ≥ 320 mm. Optionally, this achieves a stable spreading effect.

In particular, for the fulfillment of the functions of a spreader roll, the actuators are advantageously at least so adjustable or controllable that the roller is curved and pivoted into the web.

In particular for the fulfillment of the functions of a guide roller and / or a control roller, the actuators are expediently at least so adjustable or controllable that a deflection of the roller due to its own weight and / or due to the web tension is at least substantially compensated.

Preferably, the actuators are adjustable or controllable depending on the different operating conditions in the respective installation situations. Thus, for example, a tension roller can be adjusted via the actuators in accordance with the particular circumstances and requirements in the desired manner. The same applies to the other types of rollers.

In particular for the fulfillment of the functions of a web guiding roller, the actuators are advantageously differently adjustable or controllable on the operating side and on the driver side in order to bring about an imbalance of the roller.

It can therefore be realized by a separate, independent setting of the end portions of the roller another function, namely a regulating roller.

The actuator is advantageously arranged radially between the support core bearing and the outer jacket bearing.

In a preferred practical embodiment of the roller according to the invention, the actuator is supported on the stool.

Advantageously, the actuator comprises at least one eccentric, wherein preferably two mutually supported eccentrics are provided.

Conveniently, the two eccentrics are jointly and / or separately adjustable.

With such an eccentric arrangement, the position of the curvature height or the extent of the curvature and / or the position of the curvature plane can each be set separately or jointly or simultaneously.

With respect to a possible moment-free storage, it is advantageous if the respectively extending in the radial direction middle planes of the support core bearing and the outer shell storage at least substantially coincide. Advantageously, therefore, an aligned or symmetrical arrangement of the support core bearing and the outer shell bearing is provided.

A preferred practical embodiment of the roller according to the invention is characterized in that the support core bearing and the outer sheath bearing each comprise only one bearing and that the support core bearing and the outer sheath bearing are arranged at least substantially in a common radial plane.

Advantageously, the support core bearing and / or the outer jacket storage can also each comprise two or more bearings.

If the outer casing bearing comprises two or more bearings, the center plane of this outer casing bearing extending in the radial direction expediently coincides at least substantially with the center plane of the supporting core bearing extending in the radial direction. If the support core bearing is formed only by a bearing, then this support core bearing is preferably arranged at least substantially in the radially extending center plane of the outer jacket bearing.

In principle, however, the support core bearing may include two or more bearings. In this case, the bearings of the outer casing storage and the bearings of the support core bearing are advantageously arranged symmetrically with respect to a radial plane common to the two bearings.

If the support core bearing comprises two or more bearings, the center plane of this support core bearing extending in the radial direction expediently coincides at least substantially with the center plane of the outer jacket bearing extending in the radial direction.

In this case, if the outer casing bearing comprises only one bearing, then this outer casing bearing is advantageously arranged at least substantially in the center plane of the supporting core bearing extending in the radial direction.

If the outer casing bearing also comprises two or more bearings, then the bearings of the support core bearing and the bearings of the outer casing bearing are advantageously again arranged symmetrically with respect to a radial plane common to the two bearings.

The corresponding arrangement of the bearings and / or the actuator results in a very rigid structure, which is particularly insensitive to vibrations. Nevertheless occurring vibrations can be at least reduced by suitable damping elements. Thus, in a preferred practical embodiment, damping means are provided between the support core bearing and the outer jacket bearing. In this case, a viscous liquid is preferably introduced into the cavity between the support core bearing and outer jacket bearing.

It is also conceivable, for example, to provide a membrane in the area between the support core bearing and the outer jacket bearing.

Alternatively or additionally, it is advantageous if the roller is fastened to the chair via vibration-damping elements. Alternatively or additionally, it may in particular also be attached to the stool via actively damping hydraulic elements.

Due to the small installation space, it may be necessary to use small bearings and preferably bearings, which combine the bearing function and an angle-compensating function in itself. The support core bearing and / or the outer jacket bearing preferably each comprise at least one angle-compensating bearing.

Particularly in the case of larger forces, the support core bearing and / or the outer jacket bearing advantageously comprise in particular at least one conical, cylindrical or spherical roller bearing which, since these do not permit angular displacement, must be supported in such a manner that an angular adjustability of the outer jacket axis and / or the support core axis is ensured.

In a preferred practical embodiment of the roller according to the invention, the support core is rotatable together with the outer jacket. In this case, the outer jacket is preferably connected rotationally fixed to the support core.

In principle, however, such embodiments are conceivable, for example, in which the support core is not rotatable about its longitudinal axis.

It is also particularly advantageous if, viewed in the axial direction, the support core has an at least sectionally different cross-sectional shape. In this case, the support core may have, in particular at least in sections, a cross-sectional shape tapering conically towards its ends.

In the case of the roller according to the invention, the force flow which is caused by the corresponding structure and the loads occurring is thus transmitted as directly as possible and without auxiliary structures between the two bearings.

The web-processing machine according to the invention is characterized in that it comprises at least one inventive roller and a preferably electronic control and / or regulating device, via which the actuators of the roller are controlled accordingly.

In this case, preferably at least one sensor for determining the web position is connected to the control device, so that the web position can be regulated via this control device that actuates the actuators.

Advantageously, at least one position sensor integrated in the roller is provided.

Appropriately, at least one position sensor is provided in the two edge regions of the web. In particular, in each case at least one position sensor can be integrated into the two end regions of the roller.

In principle, however, at least one position sensor arranged outside the roller can also be provided.

In accordance with a further advantageous embodiment of the machine according to the invention, at least one sensor for determining the web tension is connected to the control device, so that the web tension can be regulated via this control device activating the actuators.

Preferably, at least one web tension sensor integrated into the roller is provided.

However, at least one web tension sensor arranged outside the roller is also conceivable.

The sensors in question may be, for example, optical sensors, pressure sensors, mechanical sensors and / or the like.

The roller according to the invention is thus preferably usable as a universal roller which simultaneously fulfills the functions of at least two of the following types of roller: spreader roller, guide roller, control roller, in particular web guiding or deflection adjustment roller, tension roller.

For monitoring the bearings of the roller, a vibration sensor may further be provided which detects the vibration state of the roller and which, for example, supplies the measured vibration values to a control system which dampens the vibrations by suitable means.

The invention will be described in more detail below by means of embodiments with reference to the drawing; in this show:

1 a schematic representation of a conventional arrangement in which are arranged in the web running direction in front of a pair of press rollers successively a guide roller and a spreader roller,

2 a schematic longitudinal sectional view of a roller according to the invention with associated stiffening,

3 a schematic cross-sectional view of a double eccentric actuator comprising a roller according to the invention in the zero position,

4 a schematic cross-sectional view of a double eccentric comprehensive actuator of a roller according to the invention in a maximum deflection effecting setting,

5 a schematic cross-sectional view of an end of a roller according to the invention with associated support core bearing, outer shell storage and actuator and with an actuator associated with the worm gear,

6 a partially sectioned schematic side view of the roll end according to 5 .

7 a simplified schematic cross-sectional view of an end of a roller according to the invention with associated actuator compared to the outer shell position in the region of the web center at different settings of the actuator,

8th a schematic longitudinal sectional view of one end of the roller according to the invention according to 2 wherein the support core bearing and the outer jacket bearing each comprise only one bearing,

9 one with the 8th comparable representation, but with the support core bearing comprising two bearings,

10 one with the 8th comparable illustration, but with the outer jacket bearing comprising two bearings,

11 a schematic representation of an arranged in the web running direction before another roller according to the invention roll, which simultaneously fulfills the functions of several different types of rolls, and

12 a schematic representation in which two arrangements b) and c), in each of which a function fulfilling the functions of several different types of rolls roller according to the invention is arranged in the web running direction in front of another roller, an arrangement a) are compared with a conventional guide roller.

2 shows a schematic longitudinal sectional view of a roller 10 with assigned stasis 12 , This roller 10 is in particular in a web-processing machine, in particular paper machine, used. In this case, this roller is preferably used as a spreader roller, guide roller, control roller, in particular Bahnlaufregel- or a kind of deflection adjustment and / or as a tension roller. At the same time, it preferably simultaneously fulfills the functions of at least two of the mentioned types of rolls.

As based on the 2 can be seen, includes the roller 10 one in the region of its two ends via a respective storage 14 supported support core 16 and an outer jacket 18 ,

The outer jacket 18 is in its axially middle area 20 relative to the support core 16 mounted radially immovable and in the region of its two ends via a respective further storage 22 relative to the support core 16 radially adjustable supported.

Again 2 can be taken, is located in the radial direction extending center plane 26 respectively. 28 both the support core storage 14 as well as the outer shell storage 22 axially within the outer jacket.

In the area of its two ends is the outer jacket 18 each by one within the outer shell 18 arranged actuator 30 adjustable, the radial between support core bearing 14 and outer sheath storage 22 is arranged. This actuator 30 is at the stasis 12 supported and by means of a later to be described in more detail swivel, in particular worm gear 32 variably adjustable.

In 2 is also one over the roller 10 guided material web 34 to recognize, which may be, for example, a paper, board or tissue web.

This material web 34 brings about the corresponding train a constant load 36 with it, only to a small extent in the strangulation 12 initiated tilting moment leads.

The actuator 30 includes two eccentrics mounted one inside the other, which can be adjustable together or separately.

In the illustrated state, the roller is bent. For this purpose, the supporting core is displaced by the actuator comprising the two eccentrics. The force for lifting the support core is introduced in the inner eccentric. The outer jacket is curved with the force and is supported on the outer jacket bearings. Since these lie in one plane, no moment arises. Prerequisite for this are swiveling bearings.

If the roller to take their unbent neutral position, so the actuator is to be adjusted so that the eccentricity of the inner eccentric is offset by 180 ° with respect to the eccentricity of the outer eccentric.

As bearings bearings, etc. are provided in the present case, for example, spherical roller bearings. As based on the 2 it can be seen, it is at the left end of the roll provided outer shroud bearing a floating bearing and at the right end of the roll provided outer sheath storage to a fixed bearing. The support tube bearings are each formed by a floating bearing.

3 shows a schematic cross-sectional view of the two eccentrics 30 ' . 30 '' comprehensive actuator 30 in a zero position, in which the maximum eccentricity of the inner eccentric 30 ' with the minimum eccentricity of the outer eccentric 30 '' coincides. The axis 38 the circular cylindrical interface 40 between the two eccentrics 30 ' . 30 '' So here is an amount "e" to the axis 42 the support core bearing 14 shifted upwards, which also causes a corresponding positioning of the outer jacket storage 22 and thus the respective roll shell end results.

4 shows one with the 3 comparable representation, in the present case, the two eccentrics 30 ' . 30 '' comprehensive actuator 30 However, adjusted so that there is a maximum deflection. This fall the extremities of the two eccentrics 30 ' . 30 '' together. Accordingly, here is the axis 38 the circular cylindrical interface 40 between the two eccentrics 30 ' . 30 '' opposite the axis 42 the support core bearing 14 shifted by the amount "2e", for example, to the left, causing again a corresponding displacement of the outer jacket storage 22 and thus the respective roll shell end results.

The extremities of the two eccentrics 30 ' . 30 '' are the same size.

5 shows a schematic cross-sectional view of a roll end with associated support core storage 14 , Outer jacket storage 22 , Actuator 30 and a double pivot mechanism (see also 5 ) to adjust the two eccentricities 30 ' . 30 '' of the actuator 30 ,

In view of the small available space especially small bearings are used, preferably bearings, such as self-aligning bearings, the bearing function and the angle compensating function in one unit. If the forces continue to increase, tapered, cylindrical or barrel roller bearings (also several) are preferably provided, which, however, must be supported in such a way that an angular changeability of the axis of the outer jacket 18 and / or the axis of the support core 16 can be guaranteed.

6 shows the roll end in a partially sectioned schematic side view.

Like that 5 and 6 can be taken, are the two eccentrics 30 ' . 30 '' each via an eccentric shaft 44 ' . 44 '' with a worm gear 46 ' . 46 '' connected to a respective worm shaft 48 ' . 48 '' is assigned, over which the two eccentrics 30 ' . 30 '' are rotatable together or separately.

How best by the 5 can be seen, done by turning the eccentric 30 ' . 30 '' a corresponding adjustment of eccentricity and position of the respective roll end.

7 shows in simplified schematic cross-sectional view of a roller end with associated actuator 30 compared to the outer sheath position in the area of the middle of the track at different settings of the actuator 30 ,

In this 7 is the neutral line of the outer mantle 18 With " 50 " designated. In addition, in the various sections a) to d) in addition to the two eccentrics 30 ' . 30 '' of the actuator 30 the support core 16 as well as the outer jacket 18 to recognize, with with 18 ' the position of the outer jacket 18 at a respective roll end and with 18 '' the position of the outer jacket 18 is shown in the middle of the track.

According to 7a) are the two eccentrics 30 ' . 30 '' adjusted so that the maximum curvature of the outer shell 18 pointing down and the outer jacket 18 is offset upwards in the region of the two roll ends.

According to the 7b) are the two eccentrics 30 ' . 30 '' adjusted so that the maximum curvature of the outer shell 18 facing up and the outer jacket 18 offset at the roll ends down.

According to 7c) are the two eccentrics 30 ' . 30 '' adjusted so that no casing curvature occurs and the outer casing is offset downwards.

According to 7d) are the two eccentrics 30 ' . 30 '' adjusted so that there is no curvature of the casing and the outer casing 18 is offset upwards.

In the two in the 7c and 7d mentioned cases is the outer jacket 18 without curvature relative to the support core 16 aslant. As a result, with the spreader roller and a control function can be realized.

Of course, it is also conceivable that the outer sheath 18 simultaneously relative to the support core 16 is curved and at the same time obliquely to the support core 16 stands.

8th shows a schematic longitudinal section of an end of the spreader roller 10 according to 1 ,

This includes the Stützkernlagerung 14 and the outer jacket storage 22 only one warehouse each. In this case, the support core bearing and the outer shell bearing are arranged in a common radial plane. The outer shell bearing is larger in size than the support core bearing. In the process, the center planes extending in the radial direction fall in each case 26 respectively. 28 the support core bearing 14 and the outer jacket storage 22 together. In this 7 are again the outer jacket 18 , the supporting core 16 as well as the actuator 30 to recognize.

In some designs of bearings, it may be conceivable that the normally stronger outer tube bearing is brought by smaller rollers, etc. to the approximately same carrying capacity as that of the inner tube bearing. Thus, at low curvature both bearings have an approximately equal minimum load whereby a roll of inner and outer tube bearing is given, d. H. a bearing destroying sliding of the rolling elements is reduced or largely prevented.

This results in a favorable arrangement, since a direct support leads to a reduction of the load on the intermediate sleeves or eccentrics and allows a very rigid low-vibration design.

This arrangement can only be realized if the resulting due to the roll diameter and the outer sheath bearing size outer diameter of the support core bearing is still possible for bearings with corresponding load ratings.

9 shows one with the 8th comparable representation, wherein in the present case the Stützkernlagerung 14 however, two axially spaced bearings 14 ' . 14 '' includes. The outer shell storage 22 is again formed here only by a camp.

While the right camp 14 '' the support core bearing 14 inside the outer jacket 18 is arranged, is the left bearing 14 ' outside of this outer mantle 18 , The middle level 26 this Support core bearing 14 however, is still clearly within the outer shell 18 , The bearing of the outer sheath storage 22 is again larger in size than the bearings 14 ' . 14 '' the support core bearing 14 ,

As based on the 9 it can be seen, falls in the radial direction extending center plane 26 the support core bearing 14 with the radially extending center plane 28 the outer jacket storage 22 together.

Again, the two eccentrics 30 ' . 30 '' comprehensive akutator again radially between the two bearings 14 ' . 14 '' comprehensive support core storage 14 and the outer jacket storage 22 arranged.

When using bearings of different sizes, the axial distances x and y may differ to achieve a load distribution in relation to the load capacity of the bearings.

In an inclined position of the roller is to allow for a torque freedom, a corresponding inclination of the bearings. This can be done either directly by selecting an angularly adjustable bearing or, as required for example in a double arrangement, by an area in the force introduction plane, which leaves an inclined position, as is the case for example with a spherical surface.

The in the 9 illustrated arrangement of the outer jacket bearing 22 can also be realized by two or more warehouses. Similarly, the number of core support is not limited to two camps. The direct support and adjustment of the example shown Doppelexzenterlagerung must be done by using two or more bearings per axis of rotation by appropriately vigorously designed bearing housing internally redirect the force to two or more bearings and are therefore burdened by an internal moment.

10 shows one with the 8th comparable representation, but in the present case, the outer jacket storage 22 two camps 22 . 22 '' includes.

Camps 22 ' . 22 '' the outer jacket storage 22 are dimensioned larger in the present case than the support core storage again formed only by a bearing 14 ,

In the present case, both the Stützkernlagerung 14 as well as the outer shell storage 22 each completely within the outer shell 18 ,

As already mentioned, the support core bearing comprises 14 in the present case, only one warehouse. As based on the 10 As can be seen, this support core bearing is in the radially extending mid-plane 28 the outer jacket storage 22 arranged. Here, too, falls again in the radial direction extending center plane 28 the outer jacket storage 22 with the radially extending center plane 26 the support core bearing 14 together.

In principle, such embodiments are conceivable in which both the Stützkernlagerung 16 as well as the outer shell storage 22 each composed of two or more bearings. Such designs, each with two or more bearings are used to achieve a higher overall bearing load capacity, and / or they are used in the case that the radially available space for an arrangement of radially nested bearings is not sufficient.

The support core 16 can work together with the outer jacket 18 be rotatable. In this case, the outer sheath 18 with the support core 16 rotatably connected. In principle, however, such designs are conceivable in which the support core 18 is not rotatable about its longitudinal axis.

As based on the 2 can be seen, the support core 16 Viewed in the axial direction have an at least partially different cross-sectional shape. In the present case, this support core has 16 at least in sections, a conically tapered to its ends cross-sectional shape.

11 shows a schematic representation of one in the web running direction L in front of another roller 58 arranged roll according to the invention 10 which simultaneously fulfills the functions of several different types of rolls. The left part shows the 11 a plan view and the right part of this 11 a side view of the relevant arrangement.

Like these 11 shows, the roll according to the invention can be used simultaneously, for example, as a spreader roll and controlled or control roll.

The actuators 30 (See also the 1 to 10 ) can thus be at least as adjustable or controllable, in particular to fulfill the functions of a spreader roller, that the roller is curved and pivoted into the web, while on the other hand different in particular to fulfill the functions of a rule or web guide roller on the drive side and on the guide side are adjustable or controllable to a To cause misalignment of the roller. The two actuators 30 Thus, for example, on the drive side and on the driver's side can be adjusted so that the curvature remains constant, but the axis of the support core is adjusted to the opposite direction control of the actuators at the two roll ends.

12 shows a schematic representation of an arrangement a) with a conventional guide roller 60 , in the web running direction L in front of another roller 62 is arranged. This conventional arrangement is contrasted with two arrangements b) and c), in each of which a roller according to the invention fulfilling the functions of several different types of roller 10 in web direction L before another roll 64 is arranged.

In the left part of the 12 is the respective sag of the rollers 10 . 60 to recognize. In the middle of 12 the respective arrangements a) to c) are each shown in a side view. In the right part of the 12 the arrangements are again shown in plan view.

As based on the 12a) can be seen, results in the conventional guide roller comprehensive arrangement, a conditional by the weight g sag and a train, the paper or the web 66 is compressed.

In contrast, the shows 12b) a compensated roller according to the invention 10 without sag, which simultaneously fulfills the functions of a guide roller and a control roller, for example. The actuators 30 (See also the 1 to 10 ) So at least again so adjustable or controlled that a deflection of the roller 10 due to its own weight and / or due to the web tension is at least substantially compensated. The roller 10 is again in web direction L before another roller 62 arranged.

Also the 12c) shows again an arrangement in which a fulfilling the functions of several different types of rolls inventive roller 10 in web direction L before the other roll 62 is arranged. In the present case, the actuators provided at the two roll ends are 30 (again the 1 to 10 ) so adjustable or controllable that with the roller 10 at the same time the functions of a guide roller and a spreader roller are met. Like in this one 12 can be seen, results in the present case, a deflection of the roller 10 up or to the train 66 out.

LIST OF REFERENCE NUMBERS

10

roller

12

framing

14

Support core bearing

14 '

camp

14 ''

camp

16

supporting core

18

outer sheath

20

middle area

22

Outer covering bearing

26

Center plane of the support core bearing

28

Center plane of the outer casing storage

30

actuator

30 '

eccentric

30 ''

eccentric

32

Swing gear, worm gear

34

web

36

Uniformly Distributed load

38

axis

40

circular cylindrical interface

42

Axle of the support core bearing

44 '

eccentric shaft

44 ''

eccentric shaft

46 '

worm gear

46 ''

worm gear

48 '

worm shaft

48 ''

worm shaft

50

Neutral line of the outer jacket

52

Pair of press rolls

54

guide roll

56

Spreader roll

58

another roller

60

guide roll

62

roller

64

roller

66

train

L

Web direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19927897 A1 [0005]
• DE 102004045407 A1 [0005]

Claims (54)

Roller ( 10 ) for a web-processing machine with one in the region of its two ends via a respective storage ( 14 ) supported core ( 16 ) and an outer jacket ( 18 ), which in its axially central region ( 20 ) relative to the support core ( 16 ) mounted radially immovably and in the region of its two ends via a respective further storage ( 22 ) relative to the support core ( 16 ) is supported radially adjustable, wherein the radially extending center plane ( 26 respectively. 28 ) both the core support ( 14 ) as well as the outer jacket storage ( 22 ) axially within the outer shell ( 18 ) and the outer jacket ( 18 ) in the region of its two ends in each case by a preferably within the outer shell ( 18 ) arranged actuator ( 30 ) is adjustable. Roller according to claim 1, characterized in that the actuators ( 30 ) are so adjustable or controllable that at the same time the functions of at least two of the following types of rolls are fulfilled with the one roller: - Spreader roll - Guide roll - Regulating roll, in particular Bahnlaufregel- or Durchbiegungseinstellwalze - tensioning roll. Roller according to claim 2, characterized in that the actuators ( 30 ) are so adjustable or controllable that at the same time the functions of a guide roller and a spreader roller are met with the one roller. Roller according to claim 2 or 3, characterized in that the actuators ( 30 ) are so adjustable or controllable that at the same time the functions of a guide roller and a tension roller are met with the one roller. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) are so adjustable or controllable that at the same time the functions of a guide roller and a control roller are met with the one roller. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) are so adjustable or controllable that at the same time the functions of a spreader roller and a control roller are met with the one roller. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) are so adjustable or controllable that at the same time the functions of a spreader roller and a tension roller are met with the one roller. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) are so adjustable or controllable that at the same time the functions of a tension roller and a control roller are met with the one roller. Roller according to one of the preceding claims, characterized in that it has an outer diameter ≥ 280 mm. Roller according to claim 9, characterized in that it has an outer diameter ≥ 300 mm. Roller according to claim 10, characterized in that it has an outer diameter ≥ 320 mm. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) are at least as adjustable or controllable, in particular for the fulfillment of the functions of a spreader roller, that the roller is curved and pivoted into the web. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) are at least as adjustable or controllable, in particular for the fulfillment of the functions of a guide roller and / or a control roller, that a deflection of the roller due to its own weight and / or due to the web tension is at least substantially compensated. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) are adjustable or controllable depending on the different operating conditions in the respective installation situations. Roller according to one of the preceding claims, characterized in that the actuators ( 30 ) in particular for the fulfillment of the functions of a web guide roller on the drive side and on the driver side are different adjustable or controllable to cause a skewing of the roller. Roller according to one of the preceding claims, characterized in that the actuator ( 30 ) radially between support core bearings ( 14 ) and outer jacket storage ( 22 ) is arranged. Roller according to one of the preceding claims, characterized in that the actuator ( 30 ) on a chair ( 12 ) is supported. Roller according to one of the preceding claims, characterized in that the actuator ( 30 ) at least one eccentric ( 30 ' . 30 '' ). Roller according to claim 18, characterized in that the actuator ( 30 ) two eccentrics ( 30 ' . 30 '' ). Roller according to claim 19, characterized in that the two eccentrics ( 30 ' . 30 '' ) are jointly and / or separately adjustable. Roller according to one of the preceding claims, characterized in that the middle planes extending in each case in the radial direction ( 26 respectively. 28 ) of the core support ( 14 ) and the outer jacket storage ( 22 ) at least substantially coincide. Roller according to one of the preceding claims, characterized in that the support core bearing ( 14 ) and the outer jacket storage ( 22 ) each comprise only one bearing and that the support core bearing ( 14 ) and the outer sleeve bearing ( 22 ) are arranged at least substantially in a common radial plane. Roller according to one of claims 1 to 21, characterized in that the support core bearing ( 14 ) and / or the outer jacket storage ( 22 ) each comprise two or more bearings. Roller according to claim 23, characterized in that the outer jacket bearing ( 22 ) two or more bearings ( 22 ' . 22 '' ) and that the radially extending mid-plane (FIG. 28 ) of this outer jacket storage ( 22 ) with the radially extending middle plane ( 26 ) of the core support ( 14 ) at least substantially coincide. Roller according to claim 24, characterized in that the support core bearing ( 14 ) comprises only one bearing and that this support core bearing at least substantially in the radially extending mid-plane ( 28 ) of the outer jacket storage ( 22 ) is arranged. Roller according to claim 24, characterized in that the support core bearing ( 14 ) comprises two or more bearings. Roller according to claim 26, characterized in that the bearings of the outer casing ( 22 ) and the bearings of the support core bearing ( 14 ) with respect to one of the two bearings ( 22 . 14 ) common radial plane are each arranged symmetrically. Roller according to claim 23, characterized in that the support core bearing ( 14 ) two or more bearings ( 14 ' . 14 '' ) and that the radially extending mid-plane (FIG. 26 ) this support core bearing ( 14 ) with the radially extending middle plane ( 28 ) of the outer jacket storage ( 22 ) at least substantially coincide. Roller according to claim 28, characterized in that the outer jacket bearing ( 22 ) comprises only one bearing and that this outer sleeve bearing at least substantially in the radially extending mid-plane ( 26 ) of the core support ( 14 ) is arranged. Roller according to claim 28, characterized in that the outer jacket bearing ( 22 ) comprises two or more bearings. Roller according to claim 30, characterized in that the bearings of the support core bearing ( 14 ) and the bearings of the outer casing storage ( 22 ) are each arranged symmetrically with respect to a radial plane common to the two bearings. Roller according to one of the preceding claims, characterized in that between support core bearing ( 14 ) and outer jacket storage ( 22 ) Damping means are provided. Roller according to claim 32, characterized in that in the cavity between support core bearing ( 14 ) and outer jacket storage ( 22 ) a viscous liquid is introduced. Roller according to claim 32 or 33, characterized in that in the region between the support core bearing ( 14 ) and outer jacket storage ( 22 ) A membrane is provided. Roller according to one of the preceding claims, characterized in that it has vibration damping elements on the frame ( 12 ) is attachable. Roller according to one of the preceding claims, characterized in that it has active damping hydraulic elements on the frame ( 12 ) is attachable. Roller according to one of the preceding claims, characterized in that the support core bearing ( 14 ) and / or the outer jacket storage ( 22 ) each comprise at least one angularly compensating bearing. Roller according to one of the preceding claims, characterized in that the Support core bearing ( 14 ) and / or the outer jacket storage ( 22 ) each comprise at least one self-aligning bearing. Roller according to one of the preceding claims, characterized in that the support core bearing ( 14 ) and / or the outer jacket storage ( 22 ) each comprise at least one conical, cylindrical or barrel roller bearing. Roller according to one of the preceding claims, characterized in that the support core ( 16 ) via the support core bearing ( 14 ) is rotatably mounted about its longitudinal axis. Roller according to claim 40, characterized in that the support core ( 16 ) together with the outer jacket ( 18 ) is rotatable. Roller according to claim 40, characterized in that the outer jacket ( 18 ) with the support core ( 16 ) is rotatably connected. Roller according to one of claims 1 to 39, characterized in that the support core ( 16 ) is not rotatable about its longitudinal axis. Roller according to one of the preceding claims, characterized in that the support core ( 16 ) viewed in the axial direction has an at least partially different cross-sectional shape. Roller according to claim 44, characterized in that the supporting core ( 16 ) At least in sections, one ends to have a conically tapered cross-sectional shape. Web-processing machine having at least one roller according to one of the preceding claims, with a preferably electronic control and / or regulating device, via which the actuators ( 30 ) are controlled accordingly. Web-processing machine according to claim 46, characterized in that at least one sensor for determining the web position is connected to the control device and via this the actuators ( 30 ) controlling the control device, the web position is adjustable. Web-processing machine according to claim 47, characterized in that at least one integrated into the roller position sensor is provided. Web-processing machine according to claim 47 or 48, characterized in that in each case at least one position sensor is provided in the two edge regions of the web. Web-processing machine according to claim 49, characterized in that in each case at least one position sensor is integrated into the two end regions of the roller. Web-processing machine according to one of the preceding claims, characterized in that at least one position sensor arranged outside the roller is provided. Web-processing machine according to one of the preceding claims, characterized in that at least one sensor for determining the web tension is connected to the control device and via this the actuators ( 30 ) controlling controller the web tension is adjustable. Web-processing machine according to claim 52, characterized in that at least one web tension sensor integrated in the roller is provided. Web-processing machine according to one of the preceding claims, characterized in that at least one web tension sensor arranged outside the roller is provided.

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