EP0972880B1 - Calender for paper webs or similar material - Google Patents

Calender for paper webs or similar material Download PDF

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Publication number
EP0972880B1
EP0972880B1 EP99111850A EP99111850A EP0972880B1 EP 0972880 B1 EP0972880 B1 EP 0972880B1 EP 99111850 A EP99111850 A EP 99111850A EP 99111850 A EP99111850 A EP 99111850A EP 0972880 B1 EP0972880 B1 EP 0972880B1
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EP
European Patent Office
Prior art keywords
roll
rollers
roller
calender
calender according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP99111850A
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German (de)
French (fr)
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EP0972880A3 (en
EP0972880A2 (en
Inventor
Mathias Dipl.-Ing. Helmus
Joachim Dipl.-Ing. Hinz
Gerhard Dipl.-Ing. Stock
Franz Kayser
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Voith Patent GmbH
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Voith Paper Patent GmbH
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Publication of EP0972880A3 publication Critical patent/EP0972880A3/en
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Publication of EP0972880B1 publication Critical patent/EP0972880B1/en
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00Calenders; Smoothing apparatus

Definitions

  • the invention relates to a calender for webs made of paper or similar material with two on one Stand arranged in a common plane Roll stacks, each one top roller, one bottom roller and have three intermediate rollers, the top roller and the lower roller each as a deflection adjusting roller with a deflection adjustment device jacket supported on a non-rotatable support are trained.
  • Deflection adjusting rollers are known from DE 30 04 913 C2 of the jacket lift type as the top and bottom roller of a roller stack known. Here, however, the coat is in operation who ran one end roller to a stop, so that the position of the jacket is fixed relative to the stand is.
  • the invention has for its object a calender to develop the kind described at the beginning, that he's used to produce a variety of different Paper quality is suitable.
  • the deflection adjustment device consists of a row of support elements that together with a stroke guide by means of an adjusting device is displaceable by an angle of 180 °.
  • the adjusting device By simple actuation of the adjusting device becomes the desired one Direction of action reached. In the simplest case becomes the entire support on which the support elements and the stroke guide are attached, rotated by 180 °.
  • each roll stack is supported on levers, which swivel around fixed swivel axes. These intermediate rolls can therefore change with little friction follow the load from the lower rollers. By lowering the lower roller, the ones below open of the top nip located automatically.
  • All rollers of the two roller stacks expediently have own drive. This supports the Passing the web through the opened nips.
  • the calender is also suitable for online operation.
  • the rollers' own drive enables one flawless insertion of the at high speed incoming paper web. When breaks because of the repair or replacement of a roller may be required the paper web is still treated in the additional nip, making usable paper of a different quality arises, but the amount of paper returned to the pulper can be kept small.
  • the common level runs obliquely to the horizontal and that the approximately parallel to this stand both below as well as supported above. Through the inclination is the prerequisite created for the stand to support two places. Thanks to the double support there is a largely vibration-free stand.
  • the height is less than that of a vertical stand with ten rollers arranged one above the other.
  • the length is shorter than with two vertical 5-roll calenders, which are arranged one behind the other.
  • rollers on the inclined Top of the stand are arranged and at least a roller at right angles by means of an adjusting device is shiftable to the level. It is enough to roll over to drive a relatively short distance so they immediately grabbed by a crane and after can be removed at the top.
  • the bearings for the carrier at least which have an eccentric deflection roller, with which the distance between the neighboring ones Deflection adjustment rollers can be reduced.
  • the bearings for the carrier at least which have an eccentric deflection roller, with which the distance between the neighboring ones Deflection adjustment rollers can be reduced.
  • the eccentric together with the carrier can be rotated through 180 ° by the adjusting device are. It is therefore sufficient to set the Adjustment of carrier and eccentric.
  • a calender 1 made for the treatment of webs Paper and similar material, such as cardboard has an upper 5-roll stack 2 and a lower one 5-reel stack 3 on.
  • the upper roll stack 2 consists of the top roller 4, three intermediate rollers 5, 6 and 7 and the lower roller 8.
  • the lower roller stack 3 consists of the top roller 9, three intermediate rollers 10, 11 and 12 and the lower roller 13.
  • the top and bottom rollers 4, 8, 9 and 13 are deflection adjustment rollers of the jacket lift type, which are among themselves can have the same structure, so that with one reserve roller for all four end rollers.
  • a deflection adjustment roller has 4 a jacket 14, which has a Deflection adjustment device 15 on one in operation Supported rotatably supported on the stand 6 support 17 is.
  • the deflection adjustment device 15 exists in the present example from a series of hydrostatic Support elements 18 in a known manner via a pressure chamber 19 each with pressure medium be supplied that the deflection adjustment 15 also serves as a loading device.
  • To the The ends of the roller jacket 15 are on a bearing ring 20 mounted in the stroke direction on a stroke guide 21 is movable.
  • roller jacket 14 is therefore over its entire length is movable in the stroke direction. Moreover is still provided for the deflection adjustment rollers, that the carrier 17 with the help of an actuator 22 can be offset by an angle of 180 ° (cf. the arrow 23 in Fig. 2), so that the direction of action of Deflection adjuster 15 in the opposite Direction points as this by the dash-dotted line arranged row of support elements 18 'illustrated is.
  • the top intermediate rollers 5 and 10 are fixed to the stand 16 stored. If the associated top rollers 4 and 9, the deflection adjuster 15 shown in FIG Fig. 2 has illustrated position, the paper web 24 in the first nips 25 and 26 in the direction of passage the upper roll stack 2 or the lower roll stack 3 with a very high line load and therefore high Compressive stress are treated.
  • the intermediate rollers 6, 7, 11 and 12 are each on a lever 27 stored, about a fixed pivot axis swings. If the deflection adjusters 15 of the lower rollers 8 and 13 the dashed in Fig. 2 Have the nips 28, 29 and 30 of the top Roll stack 2 and the nips 31, 32 and 33 of the lower Roll stack 3 loaded accordingly.
  • the amount of the burden is independent of that in the first Nip 25 or 26. There are therefore four sections, in which the paper web 24 is different can be treated so that a variety of different Can produce paper qualities.
  • the upper and lower rollers 4, 8, 9 and 13 and the middle intermediate rolls 7 and 11 are elastic rolls, while the remaining intermediate rolls 5, 7, 10 and 12 are heated hard rollers. But it also comes other combinations, for example with hard tops Bottom rolls, into consideration.
  • the distance between the two deflection adjustment rollers 9 and 10 is so small that the additional nip 34 under Utilization of the roll stroke from, for example, 30 to 40 mm can be closed.
  • the additional nip 34 under Utilization of the roll stroke from, for example, 30 to 40 mm can be closed.
  • deflection adjusters 15 of the two end rollers 8 and 9 with the help of the adjusting device 22 towards each other and then that Supply pressure medium with the appropriate pressure.
  • Supply pressure medium with the appropriate pressure.
  • With this additional nip 34 can then be satinized be since the two bending adjustment rollers 8 and 9 wear an elastic cover. Without significant additional There is therefore another possibility paper handling.
  • the carrier 91 of the top roller 9 is mounted in a spherical cap 92 be in turn by an eccentric 93 will be carried.
  • the latter is together with the carrier 91 by the adjusting device 22 through 180 ° in the bearing 94.
  • the open additional nip 34 can be opened For example, 80 mm can be held, which is also an opening the nips 28 and 29 relieved.
  • the axes of the rollers 4 to 13 lie approximately in a common one Level E, which is opposite to the horizontal Is inclined 45 °. Accordingly, the stand has 16 an oblique course. It can therefore be in two places are supported, namely with a lower support surface 35 on a fixed bearing surface 36 and with an upper bearing surface 37 on an upper building-fixed Storage area 38.
  • the storage area 37 is located itself on a foot 39, the stand 16 near it upper end is attached.
  • the bearing surfaces 36 and 38 run horizontally and are each on a concrete foundation or base 40 or 41 formed. This is the stand 16 largely insensitive to vibrations.
  • the stand 16 can be less stable than so far and therefore cheaper to manufacture.
  • the calender 1 can work online. He is between the last drying roller 42 of the Drying section of a paper machine and a winding device 43, for example a slitter and Winder. Drying roller and winding device are at about the same height and above one Working level 44, which is penetrated by the calender 1. Therefore, the paper web 24 has between the drying roller 42 and the entrance of the calender 1 and between the Exit of the calender 1 and the winding device 43 a relatively weakly increasing course. This makes it easier to insert the paper web in online mode. The same advantage arises when the paper web from the drying roller 42 down into the Calender 1 is inserted and the top of the winding device 43 exits.
  • An only indicated web feed device 45 the works with rope clamping, for example Start of path through all nips 25 to 33 of the two Roll stack 2 and 3 and the additional nip 34. It is sufficient hence an insertion process for both roll stacks.
  • the Introductory movement is supported by the fact that all Rolling the calender and also the associated guide rolls each have their own drive 46.
  • the paper treatment then results depending on which one of the nips mentioned are closed.
  • Drawn in dashed lines is a second web insertion device 47, with which only the additional gap 34 is supplied. at
  • the matt satinage of a web introduced in this way exists Possibility of repairs on the other rollers or a To make a replacement. Semimatt operation results for example, if only the top one Nip 25 is used.
  • the inclination with the roller stacks arranged at the top has the further advantage that the rollers Substitution are more accessible and for example removed with a crane 48 and corresponding crane control and can be used.
  • the bearings of the roller to be replaced by means of a hydraulic actuator 49 along a guide be pulled out perpendicular to plane E, as this is shown in dashed lines in Fig. 1.
  • an actuator 49 comes primarily the piston of one along the lever 27 extending hydraulic cylinder in Consideration.
  • the crane 48 can Hold the roller ends immediately and the roller vertically dissipate.

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  • Paper (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The calender assembly, to process a web of paper and similar materials, has rollers with an adjustable bend, and all the bending rollers (4,8,9,13) are a lifting mantle type on carriers fixed to the frame. The uppermost intermediate rollers (5,10) in each roller stack are fixed to the frame. The lower roller (8) of the first roller stack (2) in the calendar assembly and the upper roller (9) of the second roller stack (3) are next to each other, and can form an additional closing nip (34) through the lifting mantle action. The roller bending adjustment system has a support row which can be moved by 180 degrees by a setting unit (22) with a lifting guide. The second and third intermediate rollers (6,7,11,12) in each roller stack are mounted on levers (27) which pivot on axes fitted to the machine frame. In both stacks of rollers (2,3), the upper rollers (4,9) and the center intermediate rollers (6,11) and the lower rollers (8,13) have elastic mantle claddings. The other rollers (5,7,10,12) are heated rollers with hard mantles. The entry feed unit (45) directs the web through all the nips (25-33) in both roller stacks (2,3) and the additional nip (34). All the rollers (4-13) in both roller stacks (2,3) have their own drives (46). The calender rollers lie on a common plane (E) at an angle of 45 degrees to the horizontal, on columns (16) supported at the top and bottom on mounting surfaces (35,36) formed by the concrete foundation sections (40,41). The calender rollers are on the upper side of the columns (16), and at least one roller can be moved by a setting unit (49) at right angles to the roller plane (E). The bearing mounting for the carrier of at least one roller with an adjustable bend has an eccentric, which can reduce the gap between adjacent adjustable bend rollers (8,9). The eccentric is rotated with the carrier by the setting unit (22). The calender assembly is located between the final drying cylinder (42) and the web winding station (43), and at their levels.

Description

Die Erfindung bezieht sich auf einen Kalander für Bahnen aus Papier oder ähnlichem Material mit zwei an einem Ständer in einer gemeinsamen Ebene angeordneten Walzenstapeln, die je eine Oberwalze, eine Unterwalze und drei Zwischenwalzen aufweisen, wobei die Oberwalze und die Unterwalze jeweils als Durchbiegungseinstellwalze mit über eine Durchbiegungseinstelleinrichtung auf einem drehfest gehaltenen Träger abgestützten Mantel ausgebildet sind.The invention relates to a calender for webs made of paper or similar material with two on one Stand arranged in a common plane Roll stacks, each one top roller, one bottom roller and have three intermediate rollers, the top roller and the lower roller each as a deflection adjusting roller with a deflection adjustment device jacket supported on a non-rotatable support are trained.

Bei einem bekannten Kalander dieser Art (DE 196 33 671 A1) sind zwei Walzenstapel zu je fünf Walzen vorgesehen, die in einer gemeinsamen vertikalen Ebene übereinander angeordnet sind und nacheinander von der Papierbahn durchlaufen werden. Die Oberwalze ist am Ständer ortsfest befestigt, während die Unterwalze an einem Schlitten befestigt ist, der durch einen Hydraulikzylinder in Richtung des Walzenstapels verlagert und belastet werden kann. Die Mäntel der Durchbiegungseinstellwalzen sind daher an ihren Enden auf den zugehörigen Trägern gelagert, während die Träger ortsfest am Ständer bzw. am Schlitten gehalten sind. Jede Änderung der Belastung führt zu einer Änderung der Druckspannung in sämtlichen Nips des Walzenstapels.In a known calender of this type (DE 196 33 671 A1) two roll stacks of five rolls each are provided, the one above the other in a common vertical plane are arranged and successively from the paper web be run through. The top roller is on the stand fixed, while the lower roller on one Carriage is attached by a hydraulic cylinder shifted and loaded in the direction of the roll stack can be. The jackets of the deflection adjustment rollers are therefore at their ends on the associated Carriers stored while the carrier is stationary on Stand or held on the sled. Every change the load leads to a change in the compressive stress in all nips of the roll stack.

Aus DE 30 04 913 C2 sind Durchbiegungseinstellwalzen vom Mantelhub-Typ als Ober- und Unterwalze eines Walzenstapels bekannt. Hier wird aber im Betrieb der Mantel der einen Endwalze bis an einen Anschlag gefahren, so daß die Lage des Mantels relativ zum Ständer fixiert ist.Deflection adjusting rollers are known from DE 30 04 913 C2 of the jacket lift type as the top and bottom roller of a roller stack known. Here, however, the coat is in operation who ran one end roller to a stop, so that the position of the jacket is fixed relative to the stand is.

Der Erfindung liegt die Aufgabe zugrunde, einen Kalander der eingangs beschriebenen Art so weiter zu entwikkeln, daß er für die Produktion einer Vielzahl unterschiedlicher Papierqualitäten geeignet ist.The invention has for its object a calender to develop the kind described at the beginning, that he's used to produce a variety of different Paper quality is suitable.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß alle Durchbiegungseinstellwalzen vom Mantelhub-Typ und ihre Träger ständerfest gelagert sind, daß die obersten Zwischenwalzen ständerfest gelagert sind, daß die Unterwalze des ersten Walzenstapels und die Oberwalze des zweiten Walzenstapels einander benachbart sind und einen unter Ausnutzung des Mantelhubs schließbaren Zusatznip bilden können, und daß die Wirkrichtung der Durchbiegungseinstelleinrichtung wahlweise zum zugehörigen Walzenstapel oder zum anderen Walzenstapel weist.This object is achieved in that all jacket stroke type and their carriers are mounted on a stand that the uppermost Intermediate rolls are stably mounted that the lower roll of the first roll stack and the top roll of the second roller stack are adjacent to each other and one additional nip that can be closed using the jacket stroke can form, and that the direction of action of Deflection adjustment device optionally to the associated Roller stack or to the other roller stack has.

Bei dieser Ausgestaltung gibt es in jedem Walzenstapel zwei Bereiche, nämlich den obersten Nip einerseits und die übrigen Nips andererseits, insgesamt also vier Bereiche, in denen sich voneinander unabhängige Druckspannungen praktisch über den gesamten Streckenlastbereich einstellen lassen. Bereits im obersten Nip kann mit maximaler Druckspannung gearbeitet werden, was den Satinageeffekt erheblich verbessert. Hinzu kommt die Möglichkeit, die Papierbahn im Zusatznip zu behandeln, beispielsweise zur Erzielung einer Mattsatinage, wenn die beteiligten Durchbiegungseinstellwalzen einen elastischen Bezug tragen. Man kann den Zusatznip auch nutzen, wenn an den übrigen Walzen der Walzenstapel eine Reparatur oder ein Wechsel erfolgen muß. Die Ober- und Unterwalzen bringen die Belastung von beiden Enden her in etwa gleicher Weise auf den Walzenstapel auf. Man benötigt nur eine Reservewalze für alle vier Endwalzen.With this configuration there is in every roll stack two areas, namely the top nip on the one hand and the other nips, on the other hand, a total of four areas, in which there are independent compressive stresses practically over the entire line load range let set. Already in the top nip can be worked with maximum compressive stress, which the Satination effect significantly improved. Add to that the Possibility to treat the paper web in the additional nip, for example to achieve a satin finish if the deflection adjustment rollers involved have an elastic Wear cover. You can also use the additional nip if one on the other rolls of the roll stack Repair or a change must be made. The top and Bottom rollers bring the load from both ends in approximately the same way on the roll stack. you only needs one reserve roller for all four end rollers.

Empfehlenswert ist es, daß die Durchbiegungseinstelleinrichtung aus einer Stützelementreihe besteht, die zusammen mit einer Hubführung mittels einer Stellvorrichtung um einen Winkel von 180° versetzbar ist. Durch einfache Betätigung der Stellvorrichtung wird die gewünschte Wirkrichtung erreicht. Im einfachsten Fall wird der gesamte Träger, an dem die Stützelemente und die Hubführung angebracht sind, um 180° verdreht.It is recommended that the deflection adjustment device consists of a row of support elements that together with a stroke guide by means of an adjusting device is displaceable by an angle of 180 °. By simple actuation of the adjusting device becomes the desired one Direction of action reached. In the simplest case becomes the entire support on which the support elements and the stroke guide are attached, rotated by 180 °.

Günstig ist es auch, daß die zweite und dritte Zwischenwalze jedes Walzenstapels an Hebeln gelagert sind, die um ständerfeste Schwenkachsen schwenken. Diese Zwischenwalzen können daher mit geringer Reibung einer Änderung der Belastung durch die Unterwalzen folgen. Durch Absenken der Unterwalze öffnen sich die unterhalb des obersten Nips befindlichen Nips selbsttätig.It is also favorable that the second and third intermediate roller each roll stack is supported on levers, which swivel around fixed swivel axes. These intermediate rolls can therefore change with little friction follow the load from the lower rollers. By lowering the lower roller, the ones below open of the top nip located automatically.

Bei einer bevorzugten Ausführungsform ist dafür gesorgt, daß in jedem Walzenstapel die Oberwalze, die mittlere Zwischenwalze und die Unterwalze einen elastischen Bezug tragen und die verbleibenden Zwischenwalzen beheizbare harte Walzen sind. Dies ermöglicht es, in jedem der beiden Walzenstapel die eine bzw. die andere der beiden Bahnseiten in allen Nips auf einer beheizten harten Walze zu führen und dadurch ein beidseitig weitgehend gleichmäßig satiniertes Papier zu erhalten.In a preferred embodiment, it is ensured that that in each roll stack the top roll, the middle intermediate roller and the lower roller an elastic Wear cover and the remaining intermediate rollers are heated hard rollers. This allows in each of the two roll stacks one or the other the two sides of the web in all nips on a heated hard roller and thereby largely on both sides to get evenly satined paper.

Des weiteren empfiehlt es sich, daß eine Einzugsvorrichtung zum Einführen der Bahn durch alle Nips der beiden Walzenstapel und den Zusatznip vorgesehen ist. Mit nur einer einzigen Einzugsvorrichtung werden daher sämtliche Nips versorgt, von denen nur diejenigen wirksam sind, welche aufgrund der Belastung durch die Durchbiegungseinstelleinrichtungen geschlossen sind. Durch die geöffneten Spalte dagegen geht die Bahn ungehindert hindurch.Furthermore, it is recommended that a feed device to insert the web through all nips of the two roll stack and the additional nip is provided. With just a single feeder, therefore all nips supplied, of which only those are effective are, which due to the burden of Deflection adjustment devices are closed. The open column, on the other hand, allows the train to go unhindered therethrough.

Zweckmäßigerweise besitzen alle Walzen der beiden Walzenstapel einen eigenen Antrieb. Dies unterstützt den Durchlauf der Bahn durch die geöffneten Nips.All rollers of the two roller stacks expediently have own drive. This supports the Passing the web through the opened nips.

Außerdem ist der Kalander für einen Online-Betrieb geeignet. Der eigene Antrieb der Walzen ermöglicht ein einwandfreies Einführen der mit hoher Geschwindigkeit ankommenden Papierbahn. Wenn Pausen wegen der Reparatur oder Auswechselung einer Walze erforderlich sind, kann die Papierbahn immer noch im Zusatznip behandelt werden, wodurch brauchbares Papier einer anderen Qualität entsteht, aber die in den Pulper zurückgeleitete Papiermenge kleingehalten werden kann.The calender is also suitable for online operation. The rollers' own drive enables one flawless insertion of the at high speed incoming paper web. When breaks because of the repair or replacement of a roller may be required the paper web is still treated in the additional nip, making usable paper of a different quality arises, but the amount of paper returned to the pulper can be kept small.

Des weiteren empfiehlt es sich, daß die gemeinsame Ebene schräg zur Horizontalen verläuft und daß der sich etwa parallel hierzu erstreckende Ständer sowohl unten als auch oben abgestützt ist. Durch die Schrägstellung ist die Voraussetzung dafür geschaffen, den Ständer an zwei Stellen abzustützen. Durch die Zweifachabstützung ergibt sich ein weitgehend schwingungsfreier Ständer. Die Höhe ist geringer als bei einem vertikalen Ständer mit zehn übereinander angeordneten Walzen. Die Länge ist kürzer als bei zwei vertikalen 5-Walzen-Kalandern, die hintereinander angeordnet sind. Der Walzenwechsel vereinfacht sich, weil ein Kran besser angreifen kann als bei einem vertikalen Walzenstapel. Daher ist ein Walzenwechsel auch während des Betriebs möglich, wobei lediglich derjenige Abschnitt, in dem sich die auszuwechselnde Walze befindet, durch öffnen der Nips unwirksam gemacht werden muß.Furthermore, it is recommended that the common level runs obliquely to the horizontal and that the approximately parallel to this stand both below as well as supported above. Through the inclination is the prerequisite created for the stand to support two places. Thanks to the double support there is a largely vibration-free stand. The height is less than that of a vertical stand with ten rollers arranged one above the other. The length is shorter than with two vertical 5-roll calenders, which are arranged one behind the other. The roll change simplified because a crane can attack better than with a vertical roll stack. Therefore is a Roller change also possible during operation, whereby only the section in which the one to be replaced Roller is ineffective by opening the nips must be done.

Hierbei ist es vorteilhaft, daß der Ständer sowohl unten als auch oben auf gebäudefesten Lagerflächen abgestützt ist. Auf diese Weise werden die Kräfte gut abgeleitet.It is advantageous that the stand both below as well as supported on top of building-fixed storage areas is. In this way the forces are dissipated well.

Von Vorteil ist es, daß die Lagerflächen durch Betonfundamente gebildet sind. Derartige Betonstützen sind kostengünstiger und leichter herzustellen als entsprechende Stützstangen am Ständer.It is advantageous that the storage areas are covered by concrete foundations are formed. Such concrete columns are less expensive and easier to manufacture than the corresponding ones Support rods on the stand.

Die günstigsten Werte (kleine Höhe, kurze Länge) ergeben sich, wenn die gemeinsame Ebene etwa in einem Winkel von 45° zur Horizontalen verläuft.The most favorable values (small height, short length) result itself when the common plane is at about an angle runs from 45 ° to the horizontal.

Empfehlenswert ist es, daß die Walzen an der schrägen Oberseite des Ständers angeordnet sind und mindestens eine Walze mittels einer Stellvorrichtung rechtwinklig zur Ebene verlagerbar ist. Es genügt, die Walze über eine verhältnismäßig kurze Strecke herauszufahren, damit sie unmittelbar von einem Kran ergriffen und nach oben abtransportiert werden kann. It is recommended that the rollers on the inclined Top of the stand are arranged and at least a roller at right angles by means of an adjusting device is shiftable to the level. It is enough to roll over to drive a relatively short distance so they immediately grabbed by a crane and after can be removed at the top.

Günstig ist es, daß die Lager für den Träger zumindest der einen Durchbiegungseinstellwalze Exzenter aufweisen, mit denen der Abstand zwischen den benachbarten Durchbiegungseinstellwalzen verkleinerbar ist. Damit ist das neue Prinzip auch dann anwendbar, wenn der Mantelhub allein zum Schließen des Zusatznips nicht ausreicht.It is favorable that the bearings for the carrier at least which have an eccentric deflection roller, with which the distance between the neighboring ones Deflection adjustment rollers can be reduced. In order to the new principle is also applicable when the jacket stroke not enough to close the additional nip alone.

Vorteilhaft ist es auch, daß die Exzenter zusammen mit dem Träger durch die Stellvorrichtung um 180° verdrehbar sind. Es genügt daher eine Stellvorrichtung für die Verstellung von Träger und Exzenter.It is also advantageous that the eccentric together with the carrier can be rotated through 180 ° by the adjusting device are. It is therefore sufficient to set the Adjustment of carrier and eccentric.

Weitere Vorteile bietet die Anordnung zwischen der letzten Trockenwalze einer Trockenpartie und einer Wikkelvorrichtung, die sich etwa auf gleicher Höhe befinden. Wegen der Schrägneigung kann der Bahnabschnitt zwischen Trockenwalze und Kalander sowie zwischen Kalander und Wickelvorrichtung einen verhältnismäßig flach ansteigenden Verlauf haben. Dies wiederum ist günstig für das Einführen der Papierbahn bei einem Online-Betrieb.The arrangement between the last drying roller of a dryer section and a winding device, that are at about the same height. Because of the slope, the track section between drying roller and calender and between calenders and winding device a relative have a gently rising course. This in turn is favorable for the introduction of the paper web in an online operation.

Die Erfindung wird im folgenden anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung näher beschrieben. Hierin zeigen:

Fig. 1
eine schematische Seitenansicht eines erfindungsgemäß Kalanders,
Fig. 2
einen Schnitt durch den Mittelbereich einer Durchbiegungseinstellwalze,
Fig. 3
einen Schnitt durch den Endbereich einer Durchbiegungseinstellwalze und
Fig. 4
eine schematische Darstellung der Lagerung des Trägers einer Durchbiegungseinstellwalze.
The invention is described below with reference to a preferred embodiment in connection with the drawing. Show here:
Fig. 1
2 shows a schematic side view of a calender according to the invention,
Fig. 2
2 shows a section through the central region of a deflection adjustment roller,
Fig. 3
a section through the end portion of a deflection roller and
Fig. 4
is a schematic representation of the storage of the support of a deflection roll.

Ein Kalander 1, der für die Behandlung von Bahnen aus Papier und ähnlichem Material, wie Karton, bestimmt ist, weist einen oberen 5-Walzen-Stapel 2 und einen unteren 5-Walzen-Stapel 3 auf. Der obere Walzenstapel 2 besteht aus der Oberwalze 4, drei Zwischenwalzen 5, 6 und 7 sowie der Unterwalze 8. Der untere Walzenstapel 3 besteht aus der Oberwalze 9, drei Zwischenwalzen 10, 11 und 12 sowie der Unterwalze 13.A calender 1 made for the treatment of webs Paper and similar material, such as cardboard has an upper 5-roll stack 2 and a lower one 5-reel stack 3 on. The upper roll stack 2 consists of the top roller 4, three intermediate rollers 5, 6 and 7 and the lower roller 8. The lower roller stack 3 consists of the top roller 9, three intermediate rollers 10, 11 and 12 and the lower roller 13.

Die Ober- und Unterwalzen 4, 8, 9 und 13 sind Durchbiegungseinstellwalzen vom Mantelhub-Typ, die untereinander den gleichen Aufbau haben können, so daß man mit einer Reservewalze für alle vier Endwalzen auskommt. Wie die Fig. 2 und 3 zeigen, besitzt eine solche Durchbiegungseinstellwalze 4 einen Mantel 14, der über eine Durchbiegungseinstelleinrichtung 15 auf einem im Betrieb drehfest am Ständer 6 gehaltenen Träger 17 abgestützt ist. Die Durchbiegungseinstelleinrichtung 15 besteht in vorliegendem Beispiel aus einer Reihe von hydrostatischen Stützelementen 18, die in bekannter Weise über je eine Druckkammer 19 derartig mit Druckmittel versorgt werden, daß die Durchbiegungseinstelleinrichtung 15 auch als Belastungsvorrichtung dient. An den Enden ist der Walzenmantel 15 auf einem Lagerring 20 gelagert, der in Hubrichtung auf einer Hubführung 21 verschiebbar ist. Der Walzenmantel 14 ist daher über seine gesamte Länge in Hubrichtung beweglich. Außerdem ist bei den Durchbiegungseinstellwalzen noch vorgesehen, daß der Träger 17 mit Hilfe einer Stellvorrichtung 22 um einen Winkel von 180° versetzt werden kann (vgl. den Pfeil 23 in Fig. 2), so daß die Wirkrichtung der Durchbiegungseinstelleinrichtung 15 in die entgegengesetzte Richtung weist, wie dies durch die strichpunktiert angeordnete Stützelementreihe 18' veranschaulicht ist.The top and bottom rollers 4, 8, 9 and 13 are deflection adjustment rollers of the jacket lift type, which are among themselves can have the same structure, so that with one reserve roller for all four end rollers. As FIGS. 2 and 3 show, such a deflection adjustment roller has 4 a jacket 14, which has a Deflection adjustment device 15 on one in operation Supported rotatably supported on the stand 6 support 17 is. The deflection adjustment device 15 exists in the present example from a series of hydrostatic Support elements 18 in a known manner via a pressure chamber 19 each with pressure medium be supplied that the deflection adjustment 15 also serves as a loading device. To the The ends of the roller jacket 15 are on a bearing ring 20 mounted in the stroke direction on a stroke guide 21 is movable. The roller jacket 14 is therefore over its entire length is movable in the stroke direction. Moreover is still provided for the deflection adjustment rollers, that the carrier 17 with the help of an actuator 22 can be offset by an angle of 180 ° (cf. the arrow 23 in Fig. 2), so that the direction of action of Deflection adjuster 15 in the opposite Direction points as this by the dash-dotted line arranged row of support elements 18 'illustrated is.

Die obersten Zwischenwalzen 5 und 10 sind fest am Ständer 16 gelagert. Wenn bei den zugehörigen Oberwalzen 4 und 9 die Durchbiegungseinstelleinrichtung 15 die in Fig. 2 veranschaulichte Lage hat, kann die Papierbahn 24 in den in Durchlaufrichtung ersten Nips 25 und 26 des oberen Walzenstapels 2 bzw. des unteren Walzenstapels 3 mit sehr hoher Streckenlast und damit hoher Druckspannung behandelt werden.The top intermediate rollers 5 and 10 are fixed to the stand 16 stored. If the associated top rollers 4 and 9, the deflection adjuster 15 shown in FIG Fig. 2 has illustrated position, the paper web 24 in the first nips 25 and 26 in the direction of passage the upper roll stack 2 or the lower roll stack 3 with a very high line load and therefore high Compressive stress are treated.

Die Zwischenwalzen 6, 7, 11 und 12 sind je an einem Hebel 27 gelagert, der um eine ständerfeste Schwenkachse schwenkt. Wenn die Durchbiegungseinstelleinrichtungen 15 der Unterwalzen 8 und 13 die in Fig. 2 gestrichelte Lage haben, werden die Nips 28, 29 und 30 des oberen Walzenstapels 2 und die Nips 31, 32 und 33 des unteren Walzenstapels 3 entsprechend belastet. Die Höhe der Belastung ist unabhängig von derjenigen im jeweils ersten Walzenspalt 25 oder 26. Es ergeben sich daher vier Abschnitte, in denen die Papierbahn 24 unterschiedlich behandelt werden kann, so daß sich eine Vielzahl unterschiedlicher Papierqualitäten herstellen läßt.The intermediate rollers 6, 7, 11 and 12 are each on a lever 27 stored, about a fixed pivot axis swings. If the deflection adjusters 15 of the lower rollers 8 and 13 the dashed in Fig. 2 Have the nips 28, 29 and 30 of the top Roll stack 2 and the nips 31, 32 and 33 of the lower Roll stack 3 loaded accordingly. The amount of the burden is independent of that in the first Nip 25 or 26. There are therefore four sections, in which the paper web 24 is different can be treated so that a variety of different Can produce paper qualities.

Zwischen den beiden Walzenstapeln 2 und 3 bleibt im Normalbetrieb ein offener Zusatznip 34, durch den die Papierbahn 24 ungehindert hindurchläuft mit der Folge, daß im oberen Walzenstapel 2 bevorzugt die eine und im unteren Walzenstapel 3 bevorzugt die andere Bahnseite satiniert wird. Between the two roll stacks 2 and 3 remains in the Normal operation an open additional nip 34 through which the Paper web 24 runs through unhindered, with the result that in the upper roll stack 2 preferably one and lower roll stack 3 preferably the other side of the web is satined.

Die Ober- und Unterwalzen 4, 8, 9 und 13 sowie die mittleren Zwischenwalzen 7 und 11 sind elastische Walzen, während die verbliebenen Zwischenwalzen 5, 7, 10 und 12 beheizte harte Walzen sind. Es kommen aber auch andere Kombinationen, beispielsweise mit harten Oberund Unterwalzen, in Betracht.The upper and lower rollers 4, 8, 9 and 13 and the middle intermediate rolls 7 and 11 are elastic rolls, while the remaining intermediate rolls 5, 7, 10 and 12 are heated hard rollers. But it also comes other combinations, for example with hard tops Bottom rolls, into consideration.

Der Abstand zwischen den beiden Durchbiegungseinstellwalzen 9 und 10 ist so gering, daß der Zusatznip 34 unter Ausnutzung des Walzenhubs von beispielsweise 30 bis 40 mm geschlossen werden kann. Hierzu ist es lediglich erforderlich, die Durchbiegungseinstelleinrichtungen 15 der beiden Endwalzen 8 und 9 mit Hilfe der Stellvorrichtung 22 aufeinander zu zu drehen und dann das Druckmittel mit entsprechendem Druck zuzuführen. Mit diesem Zusatznip 34 kann dann eine Mattsatinage durchgeführt werden, da die beiden Biegeeinstellwalzen 8 und 9 einen elastischen Bezug tragen. Ohne wesentlichen zusätzlichen Aufwand ergibt sich daher eine weitere Möglichkeit der Papierbehandlung.The distance between the two deflection adjustment rollers 9 and 10 is so small that the additional nip 34 under Utilization of the roll stroke from, for example, 30 to 40 mm can be closed. For this it is only deflection adjusters 15 of the two end rollers 8 and 9 with the help of the adjusting device 22 towards each other and then that Supply pressure medium with the appropriate pressure. With this additional nip 34 can then be satinized be since the two bending adjustment rollers 8 and 9 wear an elastic cover. Without significant additional There is therefore another possibility paper handling.

Wenn der geöffnete Zusatznip 34 größer ist und der Mantelhub nicht zum Schließen ausreicht, kann gemäß Fig. 4 der Träger 91 der Oberwalze 9 in einer Kalotte 92 gelagert sein, die ihrerseits von einer Exzenterscheibe 93 getragen wird. Letztere ist zusammen mit dem Träger 91 durch die Stellvorrichtung 22 um 180° im Lager 94 drehbar. Auf diese Weise kann der offene Zusatznip 34 auf beispielsweise 80 mm gehalten werden, was auch ein Öffnen der Nips 28 und 29 erleichtert.If the opened additional nip 34 is larger and the jacket stroke 4 is not sufficient for closing, according to FIG the carrier 91 of the top roller 9 is mounted in a spherical cap 92 be in turn by an eccentric 93 will be carried. The latter is together with the carrier 91 by the adjusting device 22 through 180 ° in the bearing 94. In this way, the open additional nip 34 can be opened For example, 80 mm can be held, which is also an opening the nips 28 and 29 relieved.

Die Achsen der Walzen 4 bis 13 liegen etwa in einer gemeinsamen Ebene E, die gegenüber der Horizontalen um 45° geneigt ist. Dementsprechend hat auch der Ständer 16 einen schrägen Verlauf. Er kann daher an zwei Stellen abgestützt werden, nämlich mit einer unteren Stützfläche 35 auf einer gebäudefesten Lagerfläche 36 und mit einer oberen Lagerfläche 37 auf einer oberen gebäudefesten Lagerfläche 38. Die Lagerfläche 37 befindet sich an einem Fuß 39, der am Ständer 16 nahe dessen oberen Ende angebracht ist. Die Lagerflächen 36 und 38 verlaufen horizontal und sind je an einem Betonfundament oder -sockel 40 bzw. 41 ausgebildet. Hierdurch ist der Ständer 16 gegen Schwingungen weitgehend unempfindlich. Der Ständer 16 kann mit geringerer Stabilität als bisher und daher billiger hergestellt werden.The axes of the rollers 4 to 13 lie approximately in a common one Level E, which is opposite to the horizontal Is inclined 45 °. Accordingly, the stand has 16 an oblique course. It can therefore be in two places are supported, namely with a lower support surface 35 on a fixed bearing surface 36 and with an upper bearing surface 37 on an upper building-fixed Storage area 38. The storage area 37 is located itself on a foot 39, the stand 16 near it upper end is attached. The bearing surfaces 36 and 38 run horizontally and are each on a concrete foundation or base 40 or 41 formed. This is the stand 16 largely insensitive to vibrations. The stand 16 can be less stable than so far and therefore cheaper to manufacture.

Der Kalander 1 kann im Online-Betrieb arbeiten. Er befindet sich zwischen der letzten Trockenwalze 42 der Trockenpartie einer Papiermaschine und einer Wickelvorrichtung 43, beispielsweise einer Rollenschneide- und Wickelvorrichtung. Trockenwalze und Wickelvorrichtung befinden sich etwa in gleicher Höhe und oberhalb einer Arbeitsebene 44, die vom Kalander 1 durchsetzt wird. Daher hat die Papierbahn 24 zwischen der Trockenwalze 42 und dem Eingang des Kalanders 1 sowie zwischen dem Ausgang des Kalanders 1 und der Wickelvorrichtung 43 einen verhältnismäßig schwach ansteigenden Verlauf. Dies erleichtert das Einführen der Papierbahn im Online-Betrieb. Der gleiche Vorteil ergibt sich auch, wenn die Papierbahn von der Trockenwalze 42 her unten in den Kalander 1 eingeführt wird und oben zur Wickelvorrichtung 43 hin austritt.The calender 1 can work online. He is between the last drying roller 42 of the Drying section of a paper machine and a winding device 43, for example a slitter and Winder. Drying roller and winding device are at about the same height and above one Working level 44, which is penetrated by the calender 1. Therefore, the paper web 24 has between the drying roller 42 and the entrance of the calender 1 and between the Exit of the calender 1 and the winding device 43 a relatively weakly increasing course. This makes it easier to insert the paper web in online mode. The same advantage arises when the paper web from the drying roller 42 down into the Calender 1 is inserted and the top of the winding device 43 exits.

Eine nur angedeutete Bahneinzugsvorrichtung 45, die beispielsweise mit Seilklemmung arbeitet, führt den Bahnanfang durch sämtliche Nips 25 bis 33 der beiden Walzenstapel 2 und 3 sowie den Zusatznip 34. Es genügt daher ein Einführvorgang für beide Walzenstapel. Die Einführbewegung wird dadurch unterstützt, daß sämtliche Walzen des Kalanders und auch die zugehörigen Leitwalzen je einen eigenen Antrieb 46 besitzen. Die Papierbehandlung ergibt sich dann in Abhängigkeit davon, welche der genannten Nips geschlossen werden. Gestrichelt gezeichnet ist eine zweite Bahneinführungsvorrichtung 47, mit der lediglich der Zusatzspalt 34 versorgt wird. Bei der Mattsatinage einer so eingeführten Bahn besteht die Möglichkeit, an den übrigen Walzen Reparaturen oder eine Auswechslung vorzunehmen. Ein Semimatt-Betrieb ergibt sich beispielsweise, wenn lediglich der oberste Nip 25 benutzt wird.An only indicated web feed device 45, the works with rope clamping, for example Start of path through all nips 25 to 33 of the two Roll stack 2 and 3 and the additional nip 34. It is sufficient hence an insertion process for both roll stacks. The Introductory movement is supported by the fact that all Rolling the calender and also the associated guide rolls each have their own drive 46. The paper treatment then results depending on which one of the nips mentioned are closed. Drawn in dashed lines is a second web insertion device 47, with which only the additional gap 34 is supplied. at The matt satinage of a web introduced in this way exists Possibility of repairs on the other rollers or a To make a replacement. Semimatt operation results for example, if only the top one Nip 25 is used.

Die genaue Neigung des Ständers 16 richtet sich nach den örtlichen Gegebenheiten. Werte, die von 45° nach oben oder unten um etwa 10° abweichen, gehören noch in den bevorzugten Bereich.The exact inclination of the stand 16 depends on the local conditions. Values ranging from 45 ° deviate by about 10 ° above or below still belong in the preferred range.

Die Schrägneigung mit den oben angeordneten Walzenstapeln hat den weiteren Vorteil, daß die Walzen zwecks Auswechslung besser zugänglich sind und beispielsweise mit einem Kran 48 und entsprechender Kransteuerung herausgenommen und eingesetzt werden können. Insbesondere können die Lager der auszuwechselnden Walze mittels einer hydraulischen Stellvorrichtung 49 längs einer Führung senkrecht zur Ebene E herausgefahren werden, wie dies gestrichelt in Fig. 1 gezeigt ist. Als Stellvorrichtung 49 kommt in erster Linie der Kolben eines sich längs des Hebels 27 erstreckenden Hydraulikzylinders in Betracht. In der Außenstellung kann der Kran 48 die Walzenenden unmittelbar fassen und die Walze vertikal abführen.The inclination with the roller stacks arranged at the top has the further advantage that the rollers Substitution are more accessible and for example removed with a crane 48 and corresponding crane control and can be used. In particular can the bearings of the roller to be replaced by means of a hydraulic actuator 49 along a guide be pulled out perpendicular to plane E, as this is shown in dashed lines in Fig. 1. As an actuator 49 comes primarily the piston of one along the lever 27 extending hydraulic cylinder in Consideration. In the outer position, the crane 48 can Hold the roller ends immediately and the roller vertically dissipate.

Claims (15)

  1. Calender (1) for a web of paper or similar material, comprising two roll stacks (23) which are arranged in a stand (16) in a common plane (E) and which have a top roll (4, 9), a bottom roll (8, 13) and three intermediate rolls (5, 6, 7, 10, 11, 12), the top roll (4, 9) and the bottom roll (8, 13) each being constructed as a controlled deflection roll comprising a cover (14) supported by a deflection control device (15) on a support (17) held in a rotationally fixed manner, characterized in that all the controlled deflection rolls (4, 8, 9, 13) of the cover displacement type and their supports (17) are mounted fixed to the stand, in that the uppermost intermediate rolls (5, 10) are mounted fixed to the stand, in that the bottom roll (9) of the first roll stack (2) and the top roll (9) of the second roll stack (3) are adjacent to each other and can form an additional nip (34) that can be closed by using the cover displacement, and in that the direction of action of the deflection control device (15) points towards the associated roll stack or the other roll stack as desired.
  2. Calender according to Claim 1, characterized in that the deflection control device (15) comprises a row of supporting elements (18) which, together with a displacement guiding means (21), can be offset through an angle of 180° by means of an actuating device (22).
  3. Calender according to Claim 1 or 2, characterized in that the second and third intermediate roll (6, 7, 11, 12) of each roll stack are mounted on levers (27) which pivot about pivot axes fixed to the stands.
  4. Calender according to one of Claims 1 to 3, characterized in that in each roll stack (2, 3), the top roll (4, 9), the central intermediate roll (6, 11) and the bottom roll (8, 13) bear a resilient covering, and the remaining intermediate rolls (5, 7, 10, 12) are heatable, hard rolls.
  5. Calender according to one of Claims 1 to 4, characterized in that a threading apparatus (45) is provided for threading the web through all the nips (25 to 33) of both the roll stacks (2, 3) and the additional nip (34).
  6. Calender according to one of Claims 1 to 5, characterized in that all the rolls (4 to 13) of both roll stacks (2, 3) have their own drive (46).
  7. Calender according to one of Claims 1 to 6, characterized by its suitability for online operation.
  8. Calender according to one of Claims 1 to 7, characterized in that the common plane (E) runs obliquely with respect to the horizontal, and in that the stand (16) extending approximately parallel thereto is supported both at the bottom and at the top.
  9. Calender according to Claim 8, characterized in that the stand (16) can be supported, both at the bottom and at the top, on bearing surfaces (36, 38) fixed to the building.
  10. Calender according to Claim 9, characterized in that the bearing surfaces (36, 38) are formed by concrete foundations.
  11. Calender according to one of Claims 8 to 10, characterized in that the common plane (E) runs approximately at an angle of 45° with respect to the horizontal.
  12. Calender according to one of Claims 8 to 11, characterized in that the rolls are arranged on the oblique upper side of the stand (16), and at least one roll (6) can be displaced at right angles to the plane (E) by means of an actuating device (49).
  13. Calender according to one of Claims 1 to 12, characterized in that the bearings (94) for the support (91) of at least the one controlled deflection roll (9) have eccentrics (93), with which the distance between the adjacent controlled deflection rolls (8, 9) can be reduced.
  14. Calender according to Claim 13, characterized in that the eccentrics (93), together with the support (91), can be rotated through 180° by the actuating device (22).
  15. Calender according to one of Claims 8 to 14, characterized in that it can be arranged between the last drying cylinder (42) in a drying section and a winding apparatus (43), which are located at approximately the same height.
EP99111850A 1998-07-16 1999-06-19 Calender for paper webs or similar material Expired - Lifetime EP0972880B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832064A DE19832064C2 (en) 1998-07-16 1998-07-16 Calender for webs of paper or similar material
DE19832064 1998-07-16

Publications (3)

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EP0972880A2 EP0972880A2 (en) 2000-01-19
EP0972880A3 EP0972880A3 (en) 2000-05-17
EP0972880B1 true EP0972880B1 (en) 2003-05-02

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EP99111850A Expired - Lifetime EP0972880B1 (en) 1998-07-16 1999-06-19 Calender for paper webs or similar material

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US (1) US6325960B1 (en)
EP (1) EP0972880B1 (en)
AT (1) ATE239134T1 (en)
CA (1) CA2277424C (en)
DE (2) DE19832064C2 (en)

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Publication number Priority date Publication date Assignee Title
WO2001016424A1 (en) * 1999-08-27 2001-03-08 Metso Paper, Inc. Shoe roll
FI117399B (en) * 2000-02-07 2006-09-29 Metso Paper Inc Arrangement in a paper machine
FI20000615A (en) * 2000-03-16 2001-09-17 Metso Paper Inc Calender and method for changing calender roll
DE102004037237A1 (en) * 2004-07-31 2006-02-16 Voith Paper Patent Gmbh calender
DE112008003197T5 (en) * 2007-12-05 2010-10-14 Metso Paper, Inc. Apparatus for a fiber web production or handling line
CN108385427A (en) * 2018-04-28 2018-08-10 重庆川之舟印务设计有限公司 Paper pressuring flat device
CN112497612A (en) * 2020-10-28 2021-03-16 张怀文 Four-roller plastic calender with wider application range
CN113858390B (en) * 2021-10-09 2023-05-12 临沂银凤机械有限公司 Rolling die forming device for processing special ceramic products

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GB921296A (en) * 1960-12-09 1963-03-20 Millspaugh Ltd Improvements in or relating to calenders for paper and like sheet material
US3154008A (en) * 1963-02-09 1964-10-27 Dominion Eng Works Ltd Calender stack
BE674203A (en) * 1965-01-12 1966-04-15
DE2919748C2 (en) * 1979-05-10 1983-08-18 Escher Wyss AG, Zürich Rolling device for rolling web-shaped materials
DE3004913C2 (en) * 1980-02-09 1982-07-15 Kleinewefers Gmbh, 4150 Krefeld calender
FI62374C (en) 1980-05-22 1982-12-10 Valmet Oy ON-MACHINE SUPERKALANDER FOER PAPPER ELLER MOTSVARANDE
DE3416212C2 (en) * 1984-05-02 1986-12-18 Kleinewefers Gmbh, 4150 Krefeld Device for changing at least one roll for a calender
DE3821027A1 (en) * 1988-06-22 1989-12-28 Kuesters Eduard Maschf CALENDAR ARRANGEMENT
FI95062C (en) * 1993-12-29 1995-12-11 Valmet Paper Machinery Inc Calendar
DE19511145C2 (en) * 1995-03-27 2000-07-13 Voith Sulzer Finishing Gmbh Calender for double-sided paper treatment
DE19521402C2 (en) * 1995-06-13 2002-02-07 Voith Paper Gmbh Calender for the treatment of a paper web
DE19631056C2 (en) * 1996-08-01 2000-08-17 Voith Sulzer Finishing Gmbh calender
DE19633671C2 (en) * 1996-08-21 1999-03-11 Voith Sulzer Finishing Gmbh calender

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CA2277424C (en) 2004-02-17
EP0972880A3 (en) 2000-05-17
EP0972880A2 (en) 2000-01-19
DE19832064C2 (en) 2000-09-07
CA2277424A1 (en) 2000-01-16
DE59905288D1 (en) 2003-06-05
ATE239134T1 (en) 2003-05-15
US6325960B1 (en) 2001-12-04
DE19832064A1 (en) 2000-01-20

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