DE102008000042A1 - Method and device for winding a material web - Google Patents

Abstract

In a method for winding a material web (12), in particular paper, board or tissue web, on a spool (14), the material web (12) is fed to the spool (14) via a carrier drum (16) and between the carrier drum (16 ) and the spool (14) or the winding to be formed thereon (18), a winding nip (20) is formed and generates a line force in this. In this case, the effective direction of the line force generated in the winding nip (20) is kept at least substantially constant during the entire winding structure.

Description

The The invention relates to a method for winding a material web, especially paper, board or tissue web, on a spool, in which the material web the reel on a carrying drum fed and between the carrier drum and the drum or the winding to be formed on a winding nip and in this a line force is generated.

Further relates to the invention one for carrying out this method suitable winding device according to the preamble of claim 6 and a system for driving the spool in a such winding device.

• – Durch Lageveränderungen des Tambours während des Wickelverlaufs entstehen Linienkraftabweichungen quer zur Maschine (Maschinenquerrichtung; CD), das heißt quer zur Bahnlaufrichtung, und über den Wickeldurchmesser. Die Hauptursachen dafür sind eine unterschiedliche Tambourdurchbiegung, Reibeinflüsse, eine variierende Linienkraftrichtung bei konstanter Anpressrichtung und variierende Eigengewichtseinflüsse.
• – Die Übergabe von einem Anpresssystem bzw. der Primäranpressung zu einem zweiten Anpresssystem bzw. der Sekundäranpressung verursacht Linienkraftspitzen.
• – Die Übergabe von einem ersten Zentrumsantrieb bzw. Primär-Zentrumsantrieb zu einem zweiten Zentrumsantrieb bzw. Sekundär-Zentrumsantrieb kann sich negativ auf den Drehmomentverlauf und damit auf den Wickelaufbau auswirken.

The previously known methods and winding devices or rollers of the type mentioned have a number of features that have a detrimental effect on the winding structure in pressure-sensitive papers, such as tissue in particular:

• - Due to changes in the position of the spool during the course of the winding line force deviations arise across the machine (cross machine direction, CD), that is transverse to the direction of web travel, and on the winding diameter. The main causes of this are a different Tambourdurchbiegung, Reibeinflüsse, a varying line force direction at constant contact pressure and varying self-weight influences.
• - The transfer of a pressing system or the primary pressing to a second pressing system or the secondary pressing causes line force peaks.
• - The transfer of a first center drive or primary center drive to a second center drive or secondary center drive can have a negative effect on the torque curve and thus on the winding structure.

So is in the previously known scooter concepts in the primary winding The line force generated in the winding nip by the Tambourgewicht influenced, resulting in a displacement of the primary layers, a corresponding volume loss and a correspondingly higher Committee leads. In addition, arise through the Tambourdurchbiegung Line force deviations in the transverse direction. Will the drum weight for example, by a force attack on the edge in the primary winding compensated, the result is a higher through the Tambour bending line Line force in the machine center. In the secondary winding a reverse effect occurs. In the power transfer of the primary to the secondary winding occurs Line force peak through which the primary layers are pushed can, resulting in a corresponding volume loss again and a higher committee. In addition, you can in the area of pressure cylinders and pivot points and by the Rolling resistance on the track friction influences occur Line force error bring with it. This results in undefined Line forces, and there is a danger of crushing as well as the volume loss. In addition, often the tambour driven by the carrier drum. Such a circumferential drive requires a minimum line force, so it again to corresponding Volume losses can occur.

At one of the EP 1 460 010 A2 known winding device of the type mentioned are provided for driving the drum electric motors that can be coupled without gear directly to the drum or a rotary drive connection associated therewith. In this case, the spool can be coupled in a primary winding phase with a first and in a secondary winding phase with a second motor. Furthermore, a force transfer from the primary pressing to the secondary pressing is required, which can bring about a line force peak in the winding gap, which in turn can lead to a displacement of the primary layers, a corresponding loss of volume and a correspondingly higher rejection.

At one of the WO 03/053827 A1 known winding device, the line force peak occurring during the transition from the primary winding phase into the secondary winding phase is counteracted, inter alia, by the fact that the carrier drum is mounted axially inside and independently of the primary arms and a corresponding fault diagnosis is carried out on the basis of the measured line forces.

It is also already known a winding device with two center drives, in which a respective drum during the entire winding structure can be pressed on only one of the two Anpresseinheiten to the carrier drum and on the other pressing the first Tambour is pressed against the Anpresstrommel. In this case, however, a respective tambour is guided over its bearing on horizontal rails, which are arranged above the upper edge of the carrier drum. The disadvantage here is that the effective direction of the line force changes with the winding diameter, which is very unfavorable, especially in the Anwickelphase. In addition, the rolling resistance of the reel bearings on the rails and the friction in the hydraulic cylinders provided for pressing the reel on the reel cylinder cause relatively large and undefined line forces with a gain of about three times. A respective new or empty bambour can only be inserted if the full tambour already has a correspondingly large diameter. In an earlier change, the wound spool must be guided away from the carrier drum, which means that unwinding is required or the web is rebuilt must be led. The real reason for a center drive is to wind the web with as little line force as possible to maintain the volume. Due to the unfavorable effective direction of the line force, the advantage of the center drive is mostly nullified in the present case. Apart from the extremely unfavorable Anpressverhältnissen in the Anwickelphase the line force direction differs so much from the load direction. The component acting as a line force is thus difficult to control.

Of the Invention is based on the object, an improved method and an improved device of the type mentioned above create, in which the aforementioned disadvantages are eliminated. In addition, an optimized system for driving the spool in the winding device can be specified.

In terms of of the method, this object is achieved by the invention solved that the direction of action of the generated in the winding nip Line power during the entire winding structure at least is kept substantially constant. The tambour is preferred and thus the winding to be formed on the whole Wickelaufbaus over one and the same Anpresseinheit to the Carrying drum pressed. It is particularly advantageous if the tambour during the entire winding structure over one and the same center drive system is driven.

One Such winding method, in which with a constant line force direction and only one pressing system and only one center drive per winding roll is wound, in particular for winding tissue paper suitable. Above all, it is ensured that the location of the Tambours, that is in particular the vertical position relative to the carrier drum, constant over the entire winding process remains and no reversal of the Tambour Bend line occurs and dead weight influences are excluded on the line force. Accordingly, the line force across the machine (cross machine direction, CD) and over kept the winding diameter constant. Since the entire winding structure With only one Anpresssystem done, there is no power transfer. Since the entire winding structure with only one center drive system Center drive takes place, also eliminates the usual Moment handover.

Prefers The drum is guided so that the two to each other parallel axes of the spool and the carrier drum during the entire Wickelauf construction in the same plane, advantageously remain in a horizontal plane.

In terms of The winding device, the task according to the invention thereby solved that the drum and thus the to be formed on it Winding can be pressed against the carrier drum and the drum guided in this way is that the effective direction of the line force generated in the winding nip during the entire winding structure at least substantially is kept constant. Here are the drum and thus the on it to be formed winding during the entire winding structure preferably over one and the same pressing unit can be pressed against the carrier drum. Advantageous is especially true if the tambour throughout Winding structure over one and the same center drive system is drivable.

Of the Tambour is advantageously conducted so that the two parallel axes of the spool and the carrier drum during the entire winding structure in one and the same plane, preferably remain in a horizontal plane.

by virtue of This training is particularly ensured that the material web with the least possible and even over the entire winding process Contact force and wound with the least possible web tension can be. This winding device is thus in particular for pressure sensitive papers such as especially tissue suitable. there In particular, it also ensures that this is due to expensive Procedures such. Creping, TAD (Through Air Drying) or ATMOS Drying Technology produced tissue volume is largely retained. The whole Winding construction takes place with only one pressing system. There is no power transfer during the winding process required. The position of the spool relative to Carrying drum remains constant over the entire winding process. There is no reversal of the Tambour Bend line and therefore no change the line force distribution in the transverse direction. In addition, the entire Wickelaufbau center-driven, so that the line force level is no longer is determined by the peripheral drive. The Tambour can be in Supports Linearführun conditions be performed, whereby the frictional resistance reduced to a minimum and an extremely sensitive Line force control is enabled.

According to an expedient practical embodiment, the winding device comprises two movable pressing units, via which the spool and thus the winding to be formed on each winding drum is pressed and each associated with a center drive, which includes a rotor provided with an electric motor, coaxial with the spool in Assignment to an axial end portion of the spool can be positioned and by moving the center drive in the axial direction of the spool and / or by a relative movement between a rotary drive connection of the center drive and its rotor without gear directly to the spool or an associated Drehan can be coupled, wherein a respective drum during the entire winding structure only one of the two Anpresseinheiten to the carrier drum is pressed and on the other pressing only until the next drum is pressed against the carrier drum, a respective drum during the entire winding structure along a through the carrying drum axis and is guided perpendicular to this extending linear path and the pressing unit in question during the entire winding structure to be moved in parallel, wherein the spool during the entire winding structure by the respective Anpresseinheit associated center drive can be driven.

Of the Tambour can be guided in particular horizontally, wherein in this case also the two contact units horizontally are movable.

Prefers the two contact units each comprise two contact slides, one on the leader side and the other on the drive side are arranged. Here is the relevant center drive assigned to one of the two contact slides. It can the contact slides on preferably horizontal guide rails be guided. Appropriately, are by means of linear roller guides on the guide rails guided.

According to one expedient practical embodiment are a leader-side and a drive-side staging provided, wherein one of the two Anfahrschlitten a respective Pressing unit on the inside of one of the two stiffeners and the other of the two contact carriages on the outside the other chair each guided on guide rails is and the relevant center drive the outer Anpressschlitten is assigned.

From Another advantage is, in particular, if in a respective contact carriage a perpendicular to the direction of travel of the contact slide and vertical to Tambourachse movable guide carriage for centering Recording the relevant Tambourlagers is provided, the Guide carriage in particular can be moved vertically.

there the guide carriage is preferably over a Linear roller guide mounted on the contact slide.

Of the Guide carriage can have at least one actuator as in particular at least one hydraulic cylinder / piston arrangement movable be.

the Anpressschlittenpaar a respective Anpresseinheit can a carriage drive be assigned, via drive elements on the Anfahrschlitten acts, preferably the on the leader side or Drive side arranged carriage drive via a first on the same side as the carriage drive arranged drive element on the provided on this page Anpressschlitten and over a transverse source and arranged on the other side drive element acts on the provided on the other side drive carriage.

Conveniently, Here is the carriage drive one of the two Anfahrschlittenpaare or drive units on the driver side and the sled drive the other contact carriage pair or pressing unit on the drive side arranged.

The Drive elements may include, for example drive chains. In this case, each drive chain is preferably a separate chain tensioner assigned.

The Drive elements, however, for example, also toothed belt or the like.

It For example, such an embodiment is conceivable, in which the contact slide via at least one spindle gear can be driven with cross shaft.

According to one further advantageous embodiment of the invention Device is associated with the contact carriage each a single drive, wherein the Anfahrschlitten example, each about a rack or the like can be driven.

Prefers the winding device comprises a particular electronic control and / or Control device.

advantageously, is for controlling and / or regulating the drive carriage movements and / or for positioning the drive carriages in each carriage drive an angle encoder connected to the control and / or regulating device assigned. About such a Winkelcodierer can in particular the respective angular position and the respective speed be detected by the rotor of the relevant drive.

From Advantage is also when a respective center drive on the relevant Pressing carriage or the guide carriage associated therewith, in particular via a linear roller guide guided displaceably in the transverse direction is.

The carrier drum is preferably mounted on measuring cells connected to the control and / or regulating device, via which the force can be measured, with which the drum or the Wi to be formed thereon ckel is pressed against the carrier drum. The measured values obtained can then be used in particular for controlling and / or regulating the line forces occurring in the winding nip.

Conveniently, is for the transfer of a new spool from one over the winding device arranged Tambourmagazin to the corresponding positioned guide carriage of each Anpressschlittenpaares or Anpresseinheit a movable lift arms comprehensive Tambourlift intended.

the Tambourlift can be assigned to a Tambourstarter to a respective new drum already before the handover to the respective To accelerate pressing unit or its guide carriage.

From Another advantage is when the driver side and the drive side Staging in an outlet area with respect to the horizontal inclined rails are provided on which the finished and in particular braked winding is placed to this stopper supply.

Prefers the control and / or regulation of the winding structure is at least partly about the force with which the drum or the to be formed on the winding drum reel is pressed.

Prefers can the control and / or regulation of the winding structure, at least partly also over the tambour or of the on it made to forming winding path.

According to one preferred practical embodiment of the invention Device is the control and / or regulation of the winding structure via The distance traveled by the drum or by the winding to be formed Way only from a predetermined winding diameter. Before that, the Control z. B. via the contact force.

In determine cases, it may be beneficial if the guide carriage intended only for guiding the spool and the spool is supported by rails during the winding structure.

The inventive method and the invention Winding device are particularly advantageous especially for winding of tissue webs usable.

According to one In another aspect, the invention relates to a system for driving a spool in a winding device in which a material web, in particular Paper, cardboard or tissue web on which a reel is wound the web can be fed to the drum via a carrier drum is and between the carrier drum and the drum or on it to be formed winding a winding nip is formed.

centerdrives in the secondary area of the paper machine reel previously unilateral, realized on the drive side in the normal case. The Drive unit is so far mostly on a separate subset guided on linear guides. To escape the To ensure powertrain with the drive coupling of the spool, is the drive unit in the previously known drive systems in usually with the secondary arm or secondary carriage mechanically coupled by a driver.

These known drive concepts have a number of disadvantages. So must the mass of the drive unit, which depends on machine width and drive power between about 1,200-6,700 kg can, with a movement of the secondary arm or slide be moved. This brings in particular when accelerating or Decelerate considerable forces, which affect the drive-side secondary arm or sled and thus the line force between drum and unwind on the carrier drum in the secondary winding. For very sensitive products such as soft tissue papers Line forces <1 kN / m in order not to destroy the volume. These However, requirements can be met with the conventional ones Paper machine scooter concepts in which the line force in the Secondary winding through the secondary arm or carriage is generated, with the mentioned known embodiment not realized. It is a separate guide here The drive unit may be required with its own subset. moreover results in a relatively large amount of space.

Of the The invention is therefore also based on the object, an improved To provide drive system of the type mentioned, in which the previously mentioned disadvantages are eliminated. It should this drive system especially for use in the invention Wrapping be suitable. In addition, the mass of the respective Drives should be as low as possible. The space required for The drives should be reduced to a minimum.

These The object is achieved by the features of claim 39.

It is thus proposed a system for driving a spool in a winding device, in which a material web, in particular paper, cardboard or tissue web, is wound on the spool, the web is fed to the spool via a carrier drum and between the Cartridge and the spool or the winding to be formed thereon, a winding nip is formed, said drive system comprises at least one center drive having a rotor provided with an electric motor, coaxial with the spool in association with an axial end portion of the spool positionable and by methods of Center drive in the axial direction of the main cylinder and / or by a relative movement between a rotary drive connection of the center drive and the rotor without gear directly to the spool or a rotary drive connection associated therewith can be coupled. Such a drive system is particularly suitable for use in the winding device according to the invention.

According to one preferred embodiment of the invention Drive system is the center drive with a contact slide combined, over which the drum or the to be formed Winding can be pressed against the carrying roller, wherein the center drive and the contact slide are guided together.

Of the Center drive can in particular with a secondary winding area combined secondary carriage be combined. in principle is also a center drive conceivable with a primary winding area associated secondary carriage is combined.

Of the The Tambour associated rotary drive connection, for example comprise a drive clutch or bell.

Of the Rotary drive connection of the center drive includes, for example a drive star.

Of the Rotor of the center drive, for example, a hollow shaft motor include. In this case, the center drive, for example, by a relative movement between the drive star and the motor hollow shaft with the spool or be associated with this associated rotary drive connection. As already mentioned, it is basically as well possible, the drive star by appropriate method the entire center drive in the Tambour associated rotary drive connection to disengage or disengage again from this.

In In certain cases, it can be beneficial if both on the leader side as well as on the drive side respectively a center drive is provided.

there So for example, is also a symmetrical force on the two-sided arrangement of the drives possible. There are However, such designs are conceivable in which the two arranged on different sides center drives have a different engine characteristics. In the last case For example, such an embodiment is conceivable in the one of the two center drives a relatively smaller torque at relatively higher speeds for a predetermined lower Winding diameter range and the other center drive a relative greater torque at relatively lower speeds generated for a predetermined upper winding diameter range.

According to one expedient practical embodiment of the drive system according to the invention is at least a center drive assigned to a secondary winding area.

alternative or in addition, at least one center drive be associated with a primary winding area.

According to one expedient practical embodiment is both a primary wrap area and a secondary wrap area each associated with at least one center drive.

The Drive system according to the invention is with particular Advantage in a winding device for winding a tissue web usable. It can also be used in particular be provided in the winding device according to the invention.

The Invention will be described below with reference to exemplary embodiments explained in more detail with reference to the drawing.

It demonstrate:

1 a schematic side view of an exemplary embodiment of the winding device according to the invention;

2 a schematic plan view of the winding device according to 1 ;

3 a schematic front view of the winding device according to 1 ; and

4 a schematic partial view of an exemplary embodiment of the drive system according to the invention.

1 shows a schematic side view of an exemplary embodiment of a device 10 for winding up a material web 12 on a drum 14 in which the material web 12 the drum 14 over a carrier drum 16 can be fed and between the carrier drum 16 and the drum 14 or the winding to be formed thereon 18 a winding nip 20 is formed.

This is the drum 14 and thus the winding to be formed thereon 18 so to the carrier drum 16 can be pressed and the drum 14 Guided so that the effective direction of the winding in the nip 20 Line force generated during the entire winding structure is kept at least substantially constant. The drum 14 and thus the winding to be formed on it are expediently via one and the same pressing unit to the carrier drum during the entire winding structure 16 pressed. The tambour is preferred 14 driven by one and the same center drive system throughout the winding setup. This is the drum 14 in particular so guided that the two mutually parallel axes of the spool 14 and the carrying drum 16 remain in one and the same plane, preferably in a horizontal plane, throughout the winding structure.

For this purpose, the winding device 10 two movable press units 22 . 22 '; 24 . 24 ' include over which the tambour 14 and thus the winding to be formed thereon 18 each to the carrier drum 16 can be pressed.

The two contact units 22 . 22 '; 24 . 24 ' can each have a center drive 26 ; 28 (See also the 2 and 3 ) associated with a rotor provided with an electric motor.

As in particular the 2 and 3 can be removed, in which the winding device 10 is shown in a schematic plan view and a schematic front view, the center drives 26 ; 28 each coaxial with the drum 14 in association with an axial end region of the spool 14 Positio nierbar and by moving the center drive 26 ; 28 in the axial direction of the spool 14 and / or by a relative movement between a rotary drive connection 30 of the center drive 26 ; 28 and its rotor without gear directly to the spool 14 or a rotary drive connection associated therewith 32 be coupled.

This is a respective drum 14 during the entire winding setup only one of the two Anpresseinheiten 22 . 22 '; 24 . 24 ' to the carrier drum 16 pressed. About the other pressing unit is then only the next drum 14 to the carrier drum 16 pressed.

A respective drum 14 is guided during the entire winding structure along a line extending through the support drum axis and perpendicular to this, while the pressing unit in question 22 . 22 ' respectively. 24 . 24 ' can be moved parallel to it during the entire winding setup. The drum 14 is during the entire winding structure by the relevant Anpress unit 22 . 22 ' respectively. 24 . 24 ' assigned center drive 26 respectively. 28 drivable.

In the present embodiment, the drum is 14 horizontally guided, and the two press units 22 . 22 '; 24 . 24 ' are each horizontally movable.

The two press units can each have two contact slides 22 . 22 ' respectively. 24 . 24 ' include, one on the leader side and the other on the drive side are arranged. Here is the relevant center drive 26 respectively. 28 one of the two contact carriages 22 . 22 '; 24 . 24 ' assigned.

The contact carriages 22 . 22 '; 24 . 24 ' can on preferably horizontal guide rails 34 be guided. These contact rollers are for example by means of linear roller guides 36 on the guide rails 34 guided.

The winding device 10 includes a driver side and a drive side 38 , It is one of the two contact carriages 22 '; 24 ' a respective pressing unit on the inside of one of the two stanchions 38 and the other contact sled 22 ; 24 on the outside of the other framing 38 each on guide rails 34 guided. The relevant center drive 26 respectively. 28 is in each case the outer contact carriage 22 . 24 assigned.

In a respective contact carriage 22 . 22 '; 24 . 24 ' can a perpendicular to the direction of travel of the contact slide and perpendicular to the spool axis movable carriage 40 . 40 '; 42 . 42 ' for the centering recording of the respective Tambourlagers 44 be provided. In the present embodiment, the guide carriage is vertically movable. In this case, the guide carriage in particular via a linear roller guide 46 be stored on the contact slide.

The guide carriage 40 . 40 '; 42 . 42 ' in particular via at least one actuating element such as in particular at least one hydraulic cylinder or hydraulic cylinder / piston arrangement 48 . 48 '; 50 . 50 ' be movable.

The contact carriage pair 22 . 22 '; 24 . 24 ' a respective pressing unit can be a carriage drive 52 ; 54 be assigned, via drive elements 56 . 56 '; 58 . 58 ' on the contact carriages 22 . 22 ' . 24 . 24 ' acts.

The arranged on the driver's side or drive side slide drive 52 ; 54 a respective Anfahrschlittenpaares can have a first on the same side as the carriage drive 52 ; 54 arranged drive element 56 ; 58 on the pressure rollers provided on this page 22 ; 24 and over a crossbar 60 ; 62 and a drive element disposed on the other side 56 '; 58 ' on the provided on the other side Anpressschlitten 22 '; 24 ' Act.

The winding device 10 may in particular be designed so that the carriage drive 52 ; 54 one of the two contact carriage pairs 22 . 22 '; 24 . 24 ' or drive units on the driver side and the sled drive 52 ; 54 the other Anpressschlittenpaares or Anpresseinheit is arranged on the drive side.

In the present embodiment, the drive elements comprise drive chains 56 . 56 '; 58 . 58 ' , Each drive chain can have its own chain tensioner 64 . 64 '; 66 . 66 ' be assigned. In principle, however, other drive elements such as toothed belts may be provided.

The contact carriages 22 . 22 '; 24 . 24 ' For example, can also be driven via at least one spindle gear with transverse shaft.

The contact slide 22 . 22 '; 24 . 24 ' can also be assigned in each case a single drive. In particular, in this case, the Anpressschlitten example, each be driven via a rack.

The winding device 10 may include a particular electronic control and / or regulating device (not shown).

For controlling and / or regulating the drive carriage movements and / or for positioning the drive carriages, each carriage drive can be used 52 ; 54 an angle encoder connected in particular to the control and / or regulating device 68 ; 70 be assigned.

In the present embodiment, a respective center drive 26 ; 28 on the relevant contact carriage 22 ; 24 or the guide carriage associated therewith 40 ; 42 in particular via a linear roller guide 72 guided displaceably in the transverse direction.

The carrying drum 16 can in particular connectable to the control and / or regulating device measuring cells 74 be stored, over which the force is measurable, with the tambour 14 or the winding to be formed thereon 18 to the carrier drum 16 is pressed.

For the transfer of a respective new spool 14 from one above the winding device 10 arranged Tambourmagazin (not shown) to the appropriately positioned guide carriage 40 . 40 '; 42 . 42 ' a respective Anpressschlittenpaares 22 . 22 '; 24 . 24 ' can be a movable lift arms 76 comprehensive Tambourlift 78 be provided.

The Tambourlift 78 can be assigned a Tambourstarter to a respective new Tambour 14 even before handover to the respective press unit 22 . 22 '; 24 . 24 ' or their guide carriage 40 . 40 ' . 42 . 42 ' to accelerate.

In a discharge area 80 the winding device 10 can be the driver side and the drive side 38 with rails inclined relative to the horizontal 82 Be provided on the finished and in particular braked winding 18 can be placed around this one stop device 84 supply.

The control and / or regulation of the winding structure can also be done at least partially on the force with which the drum 14 or the winding to be formed thereon 18 to the carrier drum 16 is pressed. However, it is also conceivable that the control and / or regulation of the winding structure at least partially over that of the drum 14 or from the winding to be formed thereon 18 traveled path takes place. In addition, such an embodiment is conceivable, for example, in which the control and / or regulation of the winding structure on the tambour 14 or traveled by the winding path formed on it only from a predetermined winding diameter.

It is for example also such an embodiment of the winding device 10 conceivable in which the guide carriage 40 . 40 '; 42 . 42 ' only to guide the spool 14 are provided and the tambour 14 is supported by rails during the winding structure. In this case, for example, the rails 82 horizontally at least substantially up to the area of the carrier drum 16 be guided.

The winding device 10 For example, it can be executed as follows:
It is a leader-side and a drive-side staging 38 provided, wherein in each case on the inside and outside of the contact slide 22 . 22 '; 24 . 24 ' on horizontally arranged guide rails 34 by means of linear roller guides 36 are guided. In the contact carriage are vertically displaceable guide carriage 40 . 40 '; 42 . 42 ' on linear roller guides 46 stored. These guide carriages are by means of hydraulic cylinders or hydraulic cylinder / piston assemblies 48 . 48 '; 50 . 50 ' emotional. The guide slides are designed to be a spool 14 at the drum warehouse 44 centered and can carry.

It forms in each case an outer contact slit th 22 ; 24 with the opposite inner pressure carriages 22 '; 24 ' a functional or pressing unit. Each functional unit formed by a respective pair of carriages has a carriage drive 52 ; 54 that has drive chains 56 . 56 '; 58 . 58 ' acting on the drive carriage, wherein in each case a transverse shaft 60 ; 62 ensures the synchronization of the carriages of a respective pair of carriages. Each chain has its own chain tensioner 64 . 64 '; 66 . 66 ' equipped.

For controlling and / or regulating the drive carriage movements and for exact positioning, each carriage drive is an angle encoder 68 ; 70 assigned. Each carriage pair has a center drive 26 ; 28 , which may be provided in particular in the manner of a "Voith Drive" center drive and on the respective outer drive carriage in the transverse direction displaceable on linear roller guides 72 is guided.

The carrying drum 16 over which the material web 12 is fed to the winding process, is on measuring cells 74 stored. A tambour lift 78 with movable lift arms 76 takes over the reels from a arranged above the winding device drum magazine (not shown) and leads them to the appropriately positioned guide carriage. In a discharge area 80 the winding device 10 is the stance with inclined rails 82 provided, on which the finished wound winding 18 put on after braking and the stop device 84 is supplied.

The functional sequence of such an exemplary embodiment of the winding device 10 may in particular be as follows: The Tambourlift 78 lifts with the lift arms 76 a new drum 14 from the reel magazine and lowers it into the raised carriage 40 . 40 ' of the positioned contact carriage pair 22 . 22 ' , The tambour still has no contact with the carrier drum 16 ,

The center drive 26 is engaged by moving in the transverse direction in the example provided in the form of a drive bell rotary drive connection of the spool, and the spool is then accelerated to machine speed.

That by the slide drive 52 driven Anpressschlittenpaar now moves the drum to the carrier drum and presses him with a defined, preferably regulated force. The actual force value is determined by the measuring cell or measuring cells 74 under the carrier drum 16 determined and fed into the scheme.

The material web 12 Now the carrier drum is fed by cut in the upstream machine section a transfer strip on the edge of the web and is guided with appropriate transfer devices on the carrier drum through the press or winding nip between the carrier drum and drum. Thereafter, the strip is widened to the total web.

The on the carrier drum running material web is then by means of a Turn-up or Aufführsystems transferred to the drum. The turn-up or the listing of the web can by Moistening the spool or by applying an adhesive tape or spray glue on the spool. alternative or in addition, the material web can also be a web-wide Trennblasrohr under the drum separated and listed become.

After the turn-up, the entire winding process takes place up to the full roll 18 For example, with controlled contact force and defined center torque (controlled speed).

After reaching a certain winding diameter, the Anpressschlittenpaar 24 . 24 ' with lowered guide carriage 42 . 42 ' under the active drum through in the direction of the carrier drum in the Tamboureinlegeposition be moved. Arrived there are the guide carriage by means of hydraulic cylinders or hydraulic cylinder / piston assemblies 50 . 50 ' lifted into the working position in which they are ready to receive the next spool.

Has the wrap 18 reaches the desired diameter, it is moved away by a predeterminable amount of the carrier drum and there centered continued to be wound. During this time, a new drum, which is already in waiting position on the carrier drum in the Tambourlift, in the ready pair of guide carriages 42 . 42 ' inserted, with the center drive 28 accelerated to machine speed and applied to the carrier drum, as already described in connection with the preceding drum. In this process, the web slides for a short time on the not yet rotating drum (bowing).

The transfer The material web on the new drum (turn-up) takes place as above described.

The finished winding is now through the center drive 26 braked by lowering the guide carriage 40 . 40 ' on the rails 82 lowered and released. The winding now runs on the Tambourlagern on the inclined rails 82 to the stop device 84 ,

Is the Tambourlift equipped with a Tambourstarter to the Tambour already before the Einle In order to accelerate the speed of the machine into the guide carriages, the free winding time for the full roll is shortened, and the web does not have to slide over the not yet rotating drum.

As already mentioned, alternative drives of the For example, toothed belts instead of drive chains, Spindle gear with cross shaft and / or a system with rack and single drive on each slide (electronic synchronization) include.

In In certain cases, it can also be advantageous to the winding structure not power-controlled, but path-controlled, For example, with a defined carriage path per number winding or Web documents.

It For example, such a variant is conceivable in which the Path control takes place only from a specific winding diameter.

The Guide carriage, for example, only the Guiding the Tambouren serve, whereby they are not in this case to bear their weight. The tambourines are instead run by rails worn, which then extend to the front of the drum. This brings the advantage of a largely symmetrical load of Tambourlager with itself. In the case of a line power control can conditionally However, due to the rolling friction on the rails, the sensitivity be influenced by the scheme. In a path-controlled winding structure this does not matter.

The Center drives can also be conventional, independent be realized by the drive carriage mounted drives.

In order to avoid as far as possible the drawbacks of free winding, which are known to the person skilled in the art, of a reel change, in particular at low gram stacks, a pressing element is present in the present embodiment 90 , in particular a pressure roller, provided, which on the winding 18 is applied to reduce the air inlet between the material web layers and the full winding 18 to stabilize.

4 shows a schematic partial representation of an exemplary embodiment of a system 86 for driving a spool 14 in a winding device, in which a material web, in particular paper, cardboard or tissue web, on the spool 14 is wound, the web to the spool 14 can be fed via a carrier drum and between the carrier drum and the drum 14 or the winding to be formed on a winding nip is formed.

The drive system 26 includes at least one center drive 26 ; 28 comprising an electric motor provided with a rotor, coaxial with the spool 14 in association with an axial end region of the spool 14 can be positioned and by moving the center drive in the axial direction of the spool 14 and / or by a relative movement between a rotary drive terminal of the center drive 26 ; 28 and its rotor without gear directly to the spool 14 or a rotary drive connection associated therewith 32 can be coupled.

The center drive 26 ; 28 can with a contact slide 22 . 22 '; 24 . 24 ' combined, over which the Tambour 14 or the winding to be formed on the support roller can be pressed. This can be the center drive 26 ; 28 and the contact slide 22 . 22 '; 24 . 24 ' be led together.

The center drive 26 ; 28 may be combined with a secondary carriage associated with a secondary winding area or with a primary carriage associated with a primary winding area.

The tambour 14 associated rotary drive connection may include a drive coupling or bell. The rotary drive connection 30 of the center drive 26 ; 28 may in particular comprise a drive train.

The rotor of the center drive comprises, for example, a hollow motor shaft. In this case, the center drive 26 ; 28 for example, by a relative movement between the drive train and the motor hollow shaft with the spool 14 or the associated rotary drive connection 32 be coupled.

It For example, both on the leader page as well also be provided on the drive side in each case a center drive.

there The two can be arranged on different sides Center drives have a different engine characteristics. So one of the two center drives, for example, a relative smaller torque at relatively higher speeds for a predetermined lower winding diameter range and the other Center drive a relatively larger torque at relatively lower speeds for a predeterminable Create upper winding diameter range.

At least one center drive is preferred 26 ; 28 assigned to a secondary winding area. For example, at least one center drive may also be associated with a primary winding area. In this case, for example, such a design is conceivable in which both a Primärwickelbereich and a Sekundärwickelbe rich in each case at least one center drive is assigned.

The center drives 26 ; 28 Thus, each can again be provided in the manner of a "Voith Drive" center drive.

In the 4 are also a strangulation again 38 as well as linear roller guides 72 to recognize, over which a respective center drive 26 ; 28 can be moved in the transverse direction to allow engagement or disengagement of the example comprising a drive train rotary drive connection. This can be assigned to the center drive rotary drive connection 30 for example, in a rotary drive connection comprising a drive coupling or bell 32 of the spool 14 be indented.

As based on the 4 can be seen, the center drive 26 ; 28 on a snowmobile 88 be arranged, via the carriage or linear roller guide 72 can be moved accordingly in the transverse direction.

It thus becomes a center drive with low mass and small footprint provided. For example, such variants are also conceivable, in which by a two-sided arrangement of the drives a symmetrical force transmission results. There are also variants with different engine characteristics on the leading side and the drive side conceivable.

The drive system 36 is with particular advantage in particular in the winding device according to the invention 10 used.

The Center drives the winding device according to the invention and the drive system according to the invention, as already stated, preferably as "Voith Drive" center drives executed.

10

winder

12

web

14

drummer

16

carrying drum

18

reel

20

winding gap

22

Anpressschlitten

22 '

Anpressschlitten

24

Anpressschlitten

24 '

Anpressschlitten

26

center drive

28

center drive

30

Rotary drive connection

32

Rotary drive connection

34

guide rail

36

Linear roller guide

38

framing

40

guide carriage

40 '

guide carriage

42

guide carriage

42 '

guide carriage

44

Tambour bearings

46

Linear roller guide

48

hydraulic Cylinder / piston arrangement

48 '

hydraulic Cylinder / piston arrangement

50

hydraulic Cylinder / piston arrangement

on 50 '

hydraulic Cylinder / piston arrangement

52

carriage drive

54

carriage drive

56

Driving element, drive chain

56 '

Driving element, drive chain

58

Driving element, drive chain

58 '

Driving element, drive chain

60

cross shaft

62

cross shaft

64

chain tensioner

64 '

chain tensioner

66

chain tensioner

66 '

chain tensioner

68

encoders

70

encoders

72

Linear roller guide

74

cell

76

Liftarm

78

Tambour lift

80

discharge area

82

runner

84

stopping means

86

drive system

88

snowmobiles

90

pressing element; capstan

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 1460010 A2 [0005]
• WO 03/053827 A1 [0006]

Claims (52)

Method for winding a material web ( 12 ), in particular paper, board or tissue web, on a spool ( 14 ), in which the material web ( 12 ) the drum ( 14 ) via a carrier drum ( 16 ) and between the carrier drum ( 16 ) and the drum ( 14 ) or the winding to be formed thereon ( 18 ) a winding nip ( 20 ) is formed and in this a line force is generated, characterized in that the direction of action of the winding in the nip ( 20 ) line force is maintained at least substantially constant throughout the winding structure. Method according to claim 1, characterized in that the drum ( 14 ) and thus the winding to be formed thereon ( 18 ) during the entire winding structure via one and the same pressing unit ( 22 . 22 '; 24 . 24 ' ) to the carrier drum ( 16 ) is pressed. Method according to claim 1 or 2, characterized in that the drum ( 14 ) throughout the winding setup via one and the same center drive system ( 26 ; 28 ) is driven. Method according to one of the preceding claims, characterized in that the drum ( 14 ) is guided so that the two mutually parallel axes of the spool ( 14 ) and the carrying drum ( 16 ) remain in one and the same plane during the entire winding setup. Method according to claim 4, characterized in that the drum ( 14 ) is guided so that the two mutually parallel axes of the spool ( 14 ) and the carrying drum ( 16 ) remain in a horizontal plane throughout the winding setup. Contraption ( 10 ) for winding a material web ( 12 ), in particular paper, board or tissue web, on a spool ( 14 ), in which the material web ( 12 ) the drum ( 14 ) via a carrier drum ( 16 ) can be fed and between the carrier drum ( 16 ) and the drum ( 14 ) or the winding to be formed thereon ( 18 ) a winding nip ( 20 ) is formed, in particular for carrying out the method according to any one of the preceding claims, characterized in that the tambour ( 14 ) and thus the winding to be formed thereon ( 18 ) so to the carrier drum ( 16 ) and the drum ( 14 ) is guided so that the effective direction of the in the winding nip ( 20 ) line force is maintained at least substantially constant throughout the winding structure. Contraption ( 10 ) according to claim 6, characterized in that the drum ( 14 ) and thus the winding to be formed thereon ( 18 ) during the entire winding structure via one and the same pressing unit ( 22 . 22 '; 24 . 24 ' ) to the carrier drum ( 16 ) can be pressed. Contraption ( 10 ) according to claim 6 or 7, characterized in that the drum ( 14 ) throughout the winding setup via one and the same center drive system ( 26 ; 28 ) is drivable. Contraption ( 10 ) according to one of the preceding claims, characterized in that the drum ( 14 ) is guided so that the two mutually parallel axes of the spool ( 14 ) and the carrying drum ( 16 ) remain in one and the same plane during the entire winding setup. Contraption ( 10 ) according to claim 9, characterized in that the drum ( 14 ) is guided so that the two mutually parallel axes of the spool ( 14 ) and the carrying drum ( 16 ) remain in a horizontal plane throughout the winding setup. Device according to one of the preceding claims, characterized in that it comprises two movable pressing units ( 22 . 22 '; 24 . 24 ' ) about which the drum ( 14 ) and thus the winding to be formed thereon ( 18 ) each to the carrier drum ( 16 ) and each of which is a center drive ( 26 ; 28 ) associated with a rotor provided with an electric motor, coaxial with the drum ( 14 ) in association with an axial end region of the spool ( 14 ) is positionable and by moving the center drive ( 26 ; 28 ) in the axial direction of the spool ( 14 ) and / or by a relative movement between a rotary drive connection ( 30 ) of the center drive ( 26 ; 28 ) and its rotor without gear directly to the drum ( 14 ) or a rotary drive connection ( 32 ) is coupled, wherein a respective Tambour ( 14 ) during the entire winding structure only one of the two Anpresseinheiten ( 22 . 22 '; 24 . 24 ' ) to the carrier drum ( 16 ) is pressed on and on the other pressing unit until the next drum ( 14 ) to the carrier drum ( 16 ) is pressed, a respective drum ( 14 ) is guided during the entire winding structure along a line extending through the support drum axis and perpendicular to this linear path and the relevant Anpresseinheit ( 22 . 22 ' respectively. 24 . 24 ' ) can be moved parallel to it during the entire winding structure, wherein the spool ( 14 ) during the entire winding structure by the respective pressing unit ( 22 . 22 ' respectively. 24 . 24 ' ) associated center drive ( 26 respectively. 28 ) is drivable. Contraption ( 10 ) according to one of the preceding claims, characterized in that the drum ( 14 ) is guided horizontally and both press units ( 22 . 22 '; 24 . 24 ' ) are each horizontally movable. Contraption ( 10 ) according to one of the preceding claims, characterized in that the two contact units each have two contact slides ( 22 . 22 '; 24 . 24 ' ), one of which is located on the driver's side and the other on the drive side, and that the center drive in question ( 26 respectively. 28 ) one of the two contact carriages ( 22 ; 24 ) assigned. Contraption ( 10 ) according to claim 13, characterized in that the contact slides ( 22 . 22 '; 24 . 24 ' ) on preferably horizontal guide rails ( 34 ) are guided. Contraption ( 10 ) according to claim 14, characterized in that the contact slides ( 22 . 22 '; 24 . 24 ' ) by means of linear roller guides ( 36 ) on the guide rails ( 34 ) are guided. Contraption ( 10 ) according to one of the preceding claims, characterized in that a driver-side and a drive-side ( 38 ) are provided that one of the two contact carriage ( 22 '; 24 ' ) of a respective pressing unit on the inside of one of the two fences ( 38 ) and the other contact slide ( 22 ; 24 ) on the outside of the other chair on a respective guide rail ( 34 ) and that the relevant center drive ( 26 respectively. 28 ) the outer contact carriage ( 22 ; 24 ) assigned. Contraption ( 10 ) according to one of the preceding claims, characterized in that in a respective contact carriage ( 22 . 22 '; 24 . 24 ' ) a perpendicular to the direction of travel of the contact slide and perpendicular to the spool axis movable guide carriage ( 40 . 40 '; 42 . 42 ' ) for the centering recording of the relevant Tambourlagers ( 44 ) is provided, wherein the guide carriage is preferably moved vertically. Contraption ( 10 ) according to claim 17, characterized in that the guide carriage ( 40 . 40 '; 42 . 42 ' ) via a linear roller guide ( 46 ) is mounted on the contact slide. Contraption ( 10 ) according to claim 17 or 18, characterized in that the guide carriage ( 40 . 40 '; 42 . 42 ' ) via at least one actuating element, in particular at least one hydraulic cylinder / piston arrangement ( 48 . 48 '; 50 . 50 ' ) is movable. Contraption ( 10 ) according to one of the preceding claims, characterized in that the pair of contact slides ( 22 . 22 '; 24 . 24 ' ) a respective drive unit a slide drive ( 52 ; 54 ) assigned via drive elements ( 56 . 56 '; 58 . 58 ' ) on the contact slides ( 22 . 22 '; 24 . 24 ' ) acts. Contraption ( 10 ) according to claim 20, characterized in that arranged on the driver's side or drive side carriage drive ( 52 ; 54 ) via a first on the same side as the carriage drive ( 52 ; 54 ) arranged drive element ( 56 ; 58 ) on the contact carriage provided on this page ( 22 ; 24 ) and a transverse wave ( 60 ; 62 ) and arranged on the other side drive element ( 56 '; 58 ' ) on the provided on the other side contact carriage ( 22 '; 24 ' ) acts. Contraption ( 10 ) according to claim 20 or 21, characterized in that the carriage drive ( 52 ; 54 ) one of the two contact carriage pairs ( 22 . 22 '; 24 . 24 ' ) or contact units on the driver's side and the carriage drive ( 52 ; 54 ) of the other Anpressschlittenpaares or Anpresseinheit is arranged on the drive side. Contraption ( 10 ) according to one of claims 20 to 22, characterized in that drive elements drive chains ( 56 . 56 '; 58 . 58 ' ). Contraption ( 10 ) according to claim 23, characterized in that each drive chain ( 56 . 56 '; 58 . 58 ' ) a separate chain tensioner ( 64 . 64 '; 66 . 66 ' ) assigned. Contraption ( 10 ) according to one of claims 20 to 22, characterized in that the drive elements comprise toothed belts. Contraption ( 10 ) according to one of the preceding claims, characterized in that the contact slides ( 22 . 22 '; 24 . 24 ' ) are drivable via at least one spindle gear with transverse shaft. Contraption ( 10 ) according to one of the preceding claims, characterized in that the contact carriage ( 22 . 22 '; 24 . 24 ' ) is assigned in each case a single drive and the Anfahrschlitten ( 22 . 22 '; 24 . 24 ' ) are preferably each driven via a rack. Contraption ( 10 ) according to one of the preceding claims, characterized in that it comprises a particular electronic control and / or regulating device. Contraption ( 10 ) according to claim 28, characterized in that for controlling and / or regulating the drive carriage movements and / or for Positioning the drive carriages ( 22 . 22 '; 24 . 24 ' ) each carriage drive ( 52 ; 54 ) an encoder connected to the control and / or regulating device ( 68 ; 70 ) assigned. Contraption ( 10 ) according to one of the preceding claims, characterized in that a respective center drive ( 26 ; 28 ) on the relevant contact carriage ( 22 ; 24 ) or the associated guide carriage ( 40 ; 42 ) in particular via a linear roller guide ( 72 ) is guided displaceably in the transverse direction. Contraption ( 10 ) according to one of the preceding claims, characterized in that the carrier drum ( 16 ) connected to the control and / or regulating device measuring cells ( 74 ) is stored, over which the force is measurable, with the tambour ( 14 ) or the winding to be formed on the carrier drum ( 16 ) is pressed. Contraption ( 10 ) according to one of the preceding claims, characterized in that for the transfer of a respective new spool ( 14 ) from one above the winding device ( 10 ) arranged Tambourmagazin to the correspondingly positioned guide carriage ( 40 . 40 '; 42 . 42 ' ) of a respective contact carriage pair ( 22 . 22 '; 24 . 24 ' ) or pressing unit a movable lift arms ( 76 ) comprehensive Tambourlift ( 78 ) is provided. Contraption ( 10 ) according to claim 32, characterized in that the Tambourlift ( 78 ) is assigned a Tambourstarter to a respective new Tambour ( 14 ) already prior to transfer to the respective pressing unit ( 22 . 22 '; 24 . 24 ' ) or their guide carriage ( 40 . 40 '; 42 . 42 ' ) to accelerate. Contraption ( 10 ) according to one of the preceding claims, characterized in that the driver side and the drive side ( 38 ) in a discharge area ( 80 ) with respect to the horizontal inclined rails ( 82 ), to which the finished and in particular braked winding ( 18 ) is attachable to this a stop device ( 84 ). Contraption ( 10 ) according to one of the preceding claims, characterized in that the control and / or regulation of the winding structure is at least partially via the force with which the drum ( 14 ) or the winding to be formed thereon ( 18 ) to the carrier drum ( 16 ) is pressed. Contraption ( 10 ) according to one of the preceding claims, characterized in that the control and / or regulation of the winding structure at least partially over that of the drum ( 14 ) or of the winding to be formed thereon ( 18 ) traveled way. Contraption ( 10 ) according to claim 35 or 36, characterized in that the control and / or regulation of the winding structure over that of the drum ( 14 ) or of the winding to be formed thereon ( 18 ) traveled path only takes place from a predetermined winding diameter. Contraption ( 10 ) according to one of the preceding claims, characterized in that the guide carriages ( 40 . 40 '; 42 . 42 ' ) only for guiding the spool ( 14 ) and the drum ( 14 ) is supported by rails during the winding structure. System ( 86 ) for driving a spool ( 14 ) in a winding device, in particular in a winding device according to one of the preceding claims, in which a material web, in particular paper, board or tissue web, on the spool ( 14 ) is wound, the material web the reel ( 14 ) can be fed via a carrier drum and between the carrier drum and the drum ( 14 ) or the winding to be formed thereon, a winding nip is formed, in particular for the winding device according to one of the preceding claims, with at least one center drive ( 26 ; 28 ) comprising a rotor-mounted electric motor coaxial with the spool ( 14 ) in association with an axial end region of the spool ( 14 ) is positionable and by moving the center drive in the axial direction of the spool ( 14 ) and / or by a relative movement between a rotary drive connection ( 30 ) of the center drive ( 26 ; 28 ) and its rotor without gear directly to the drum ( 14 ) or a rotary drive connection ( 32 ) can be coupled. Drive system ( 86 ) according to claim 39, characterized in that the center drive ( 26 ; 28 ) with a contact carriage ( 22 . 22 '; 24 . 24 ' ) over which the drum ( 14 ) or the winding to be formed on the support roller can be pressed, wherein the center drive and the contact slide are guided together. Drive system ( 86 ) according to claim 40, characterized in that the center drive ( 26 ; 28 ) is combined with a secondary carriage associated with a secondary winding area. Drive system ( 86 ) according to claim 40, characterized in that the center drive ( 26 ; 28 ) is combined with a primary carriage associated primary winding area. Drive system ( 86 ) according to one of claims 39 to 42, characterized in that the tambour ( 14 ) associated with rotary drive Enough ( 32 ) comprises a drive coupling or bell. Drive system ( 86 ) according to one of claims 39 to 43, characterized in that the rotary drive connection ( 30 ) of the center drive ( 26 ; 28 ) comprises a drive star. Drive system ( 86 ) according to one of claims 39 to 44, characterized in that the rotor comprises a motor hollow shaft. Drive system ( 86 ) according to claim 45, characterized in that the center drive ( 26 ; 28 ) is coupled by a relative movement between the drive star and the hollow motor shaft with the spool or the associated rotary drive connection. Drive system ( 86 ) according to one of claims 39 to 46, characterized in that a center drive is provided both on the driver's side and on the drive side. Drive system ( 86 ) according to claim 47, characterized in that the two arranged on different sides center drives have a different engine characteristics. Drive system ( 86 ) according to claim 48, characterized in that one of the two center drives generates a relatively smaller torque at relatively higher speeds for a predetermined lower winding diameter range and the other center drive a relatively larger torque at relatively lower speeds for a predetermined upper winding diameter range. Drive system ( 86 ) according to one of claims 39 to 49, characterized in that at least one center drive ( 26 ; 28 ) is assigned to a Sekundärwickelbereich. Drive system ( 86 ) according to one of claims 39 to 50, characterized in that at least one center drive is associated with a primary winding area. Drive system ( 86 ) according to one of claims 39 to 51, characterized in that both a primary winding region and a secondary winding region are each assigned at least one center drive.