EP0744492B1 - Calender - Google Patents
Calender Download PDFInfo
- Publication number
- EP0744492B1 EP0744492B1 EP96107755A EP96107755A EP0744492B1 EP 0744492 B1 EP0744492 B1 EP 0744492B1 EP 96107755 A EP96107755 A EP 96107755A EP 96107755 A EP96107755 A EP 96107755A EP 0744492 B1 EP0744492 B1 EP 0744492B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- calender
- partial
- roll gap
- winding
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims abstract description 36
- 238000003490 calendering Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
- B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/414—Winding
- B65H2301/4148—Winding slitting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/40—Shafts, cylinders, drums, spindles
- B65H2404/42—Arrangement of pairs of drums
- B65H2404/421—Bed arrangement, i.e. involving parallel and spaced drums, e.g. arranged horizontally for supporting a roll to be wound or unwound
- B65H2404/4213—Bed arrangement, i.e. involving parallel and spaced drums, e.g. arranged horizontally for supporting a roll to be wound or unwound the drums having different diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/13—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
Definitions
- the invention relates to a calender for treatment a web according to the preamble of claims 1 and 2.
- a calender of the generic type is already Kind known (DE-OS 21 19 963), in which between the last nip and the winder there is at least one slitter.
- the between the unwinder and the winder arranged working units are with drives equipped, which together with the settlement and Rewinding will be regulated and a synchronous run guarantee.
- the train is loaded much less because of a Winding process at the exit of the calender and an unwinding process at the entrance to the slitter rewinder.
- the web material can therefore be subjected to greater stress become.
- the invention is based, with one Calenders of the type described in the introduction the winding quality to improve the partial web roles.
- a calender forms a system with a large number of possible influences on the web to be treated.
- Measuring devices for the partial web roll diameters are preferred and / or the tensile stresses of the Partial webs that serve as parameters are provided. At Taking these parameters into account results in a special good winding quality.
- the invention proposal is special important because the web before going in the first Nip occurs, already a winding process on End of the paper machine and an unwinding process on Was subjected to the entrance of the calender. It will therefore ensured that this strain on the web only once occurs.
- An automatic web feed device is advantageous. Such a device is under the name “Flying Splice” known. This allows one automatic roll change at the calender entrance.
- Each winding station is advantageous with an automatic Provide winding tube changer. Whenever a partial roll reaches its maximum diameter a new winding tube is automatically fed in, so that the new sub-roll without interrupting the calender operation can be built.
- the calender illustrated in Fig. 1 has one Roll stack 1, which consists of eight rolls, namely a heatable, deflection-controllable hard Top roller 2, a soft roller 3, a heatable hard roller 4, a soft roller 5, a soft Roller 6, a heatable hard roller 7, a soft one Roller 8 and a heated, deflection controllable hard bottom roller 9. Result in this way six working columns 10 to 15, each by one hard roller and a soft roller are limited, and an interchangeable nip 16 formed by two soft rollers 5 and 6 is limited.
- a paper web 17 is taken from an unwinder 18 fed, passes under the leadership of idlers 19 the working column 10 to 12, the alternating gap 16 and the working columns 13 to 15, whereupon they are in a Winding device 20 is wound.
- the three Upper paper columns 10 to 12 is the paper web with one side, in the three lower working columns 13 to 15 with the other side on the hard rollers so that the desired surface structure on both sides, for example gloss or smoothness is achieved.
- the unwinding device connected to a flying splice system 18 is, as is well known, only as Box shown.
- At least one of the rollers 2 to 9 has its own Drive 21. In many cases, however, it is advisable to provide all rollers with such a drive, for example if there is an automatic feeding of the paper web is desirable.
- the rotating cutting knife 33 and 34 has which sit on a common axis 35 and through one Motor 36 are driven. This will make the paper web 17, which is a width of, for example, 8 or 10 m can have, in individual partial webs 17a, 17b, 17c ... divided.
- winder 37 which is a number of winding stations 37a, 37b, 37c ... which corresponds to the number of partial webs 17a, 17b, 17c ...
- a central roller is common to all winding stations 38, which has a drive device 39.
- each winding station has a support roller 40a, 40b, 40c ... each with its own drive device 41 are provided. If a winding tube 42 of up in the gap between the central roller 38 and support roller 40a lowered and through the rotating surface of the two rollers is rotated, it takes a partial web and forms a partial web roll 43a. The same applies to the partial web rollers 43b, 43c, ...
- Each partial web 17a ... is a measuring device 44 for Measurement of the tensile stress assigned to the partial web.
- everyone Part web roll 43a ... is a measuring device 45 for Measurement of the roll diameter assigned.
- the measured values are processed in a second control device 46, which adjusts the drives 39 and 41 such that the peripheral speed of the central roller 38 approximately is equal to the web speed in the calender, while corrections required for each partial web roll 43a by the drive device 41 of the support rollers he follows. Is the peripheral speed of the support roller 40a larger than that of the central roller 38 a harder wrap, it is less, a softer one Wrap.
- control device 46 with the control device 31 via a signal path 47 connected.
- control device 46 48 additional data for the Winding process of interest are fed for example the thickness of the web or its moisture.
- the control device 23 is able due to the supplied information the calender function in such a way to influence that the last nip 15th leaving paper web 17 largely the optimal Corresponds to winding conditions and therefore little or no To make interventions in the area of the winding device 37 are. In many cases, therefore, one can do not use individual regulation of the support rollers 40a ... and provide continuous support rollers. In particular with different zones of influence the paper web 17 in the calender can be reached that the partial webs 17a ... kept so even are that the same winding drive is used for all can be.
- winding devices can also be used where the Winding sleeve is mounted and driven. It is also possible to use the calender in inline mode.
Landscapes
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
- Lubricants (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Kalander zum Behandeln einer Bahn nach dem Oberbegriff der Ansprüche 1 und 2.The invention relates to a calender for treatment a web according to the preamble of claims 1 and 2.
Bei einem Kalander, wie er aus dem Prospekt "Die neuen Superkalander-Konzepte" der Firma Sulzer Papertec aus 1994 (Kennziffer 05/94 d) bekannt ist, wird die kalandrierte Bahn in der Aufwickelvorrichtung zu einer Rolle geformt, deren axiale Länge der Breite der Bahn entspricht. Bei langen Rollen macht es erhebliche Schwierigkeiten, einen gleichmäßigen Wickel zu erzeugen. Es gibt daher zahlreiche Vorschläge, die Aufwikkelvorrichtung mit Zusatzvorrichtungen zu versehen, die das Wickelergebnis verbessern sollen.With a calender, as described in the brochure "The new Supercalender concepts "from Sulzer Papertec 1994 (code 05/94 d) is known, the calendered Roll into a reel in the winder shaped, the axial length of which corresponds to the width of the web. With long rolls it makes significant Difficulty creating an even wrap. There are therefore numerous proposals for the winding device to be provided with additional devices which should improve the winding result.
Während es zum Behandeln einer Bahn rationeller ist, mit großer Bahnbreite zu arbeiten, werden in der Praxis, z.B. in einer Druckerei, wesentlich geringere Bahnbreiten benötigt. Daher gibt es Rollenschneidmaschinen, die die breite Bahn mit Hilfe von Längsschneidern in einzelne Teilbahnen aufteilen und diese je für sich in einer Wickelstation zu einer Rolle mit geringerer Breite formen. While it's more rational to treat a web, In practice, working with a wide web width e.g. in a print shop, much less Web widths required. So there are slitter reels the wide web with the help of slitters divide into individual sections and each for in a winding station to a roll with less Shape wide.
Aus diesem Grund ist bereits ein Kalander der gattungsgemäßen Art bekannt (DE-OS 21 19 963), bei dem zwischen dem letzten Walzenspalt und der Aufwickelvorrichtung mindestens ein Längsschneider vorhanden ist. Die zwischen der Abwickelvorrichtung und der Aufwickelvorrichtung angeordneten Arbeitsaggregate sind mit Antrieben ausgerüstet, welche gemeinsam mit der Abwicklung und Aufwicklung geregelt werden und einen synchronen Lauf gewährleisten.For this reason, a calender of the generic type is already Kind known (DE-OS 21 19 963), in which between the last nip and the winder there is at least one slitter. The between the unwinder and the winder arranged working units are with drives equipped, which together with the settlement and Rewinding will be regulated and a synchronous run guarantee.
Bei dieser Konstruktion wird die an der Kalander-Aufwickelvorrichtung bisher erzeugte breite Rolle durch mehrere schmalere Rollen ersetzt. Allein diese Verringerung der Breite bringt bereits eine erhebliche Verbesserung der Wickelqualität. Denn in aller Regel sind Differenzen von die Wickelqualität beeinflussenden Bahnparametern bei schmaleren Rollen geringer als bei breiteren Rollen, weil das Rollengewicht kleiner und die Durchbiegung der Rolle aufgrund einer kürzeren Achse geringer ist.With this construction, the calender rewinder previously generated broad role replaced several narrower roles. This reduction alone the breadth already brings a considerable improvement the winding quality. Because usually are Differences affecting the winding quality Path parameters for narrower rolls less than for wider rolls because the roll weight is smaller and the deflection of the roller due to a shorter axis is less.
Die Bahn wird wesentlich weniger belastet, weil ein Aufwickelvorgang am Ausgang des Kalanders und ein Abwickelvorgang am Eingang der Rollenschneidmaschine entfallen. Das Bahnmaterial kann daher stärker beansprucht werden.The train is loaded much less because of a Winding process at the exit of the calender and an unwinding process at the entrance to the slitter rewinder. The web material can therefore be subjected to greater stress become.
Durch den Fortfall einer gesonderten Rollenschneidmaschine ergeben sich auch geringere Herstellungskosten und ein verminderter Platzbedarf. Darüber hinaus entfallen Transporte vom Kalander zur Rollenschneidmaschine, was wiederum Personaleinsparungen ermöglicht. Der Papierausschuß, der sich beim Einziehen von Papierbahnen durch die jeweilige Maschine ergibt, wird etwa halbiert. Die Schneid- und Aufwickelgeschwindigkeit kann herabgesetzt und damit die Lebensdauer der Wickelmaschine und der Schneidmesser erhöht werden, weil die Verzögerungen, die sich bisher wegen der Diskontinuität des Schneidvorganges ergaben, nicht mehr aufgeholt werden müssen.By eliminating a separate slitter winder there are also lower manufacturing costs and a reduced space requirement. Beyond that Transport from the calender to the winder, which in turn enables personnel savings. The Waste paper, which occurs when feeding paper webs results from the respective machine is cut in half. The cutting and winding speed can reduced and thus the life of the winding machine and the cutting knife can be increased because of that Delays so far due to discontinuity of the cutting process, can no longer be made up have to.
Der Erfindung liegt die Aufgabe zugrunde, bei einem Kalander der eingangs beschriebenen Art die Wickelqualität der Teilbahn-Rollen zu verbessern.The invention is based, with one Calenders of the type described in the introduction the winding quality to improve the partial web roles.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Durch die Korrekturen der Umfangsgeschwindigkeit wird das Wickelergebnis (weiter) verbessert.This object is achieved by the features of claim 1 solved. By correcting the peripheral speed the winding result (continue) improved.
Eine zweite Lösung der gestellten Aufgabe ergibt sich aus den Merkmalen des Anspruchs 2.A second solution to the problem arises from the features of claim 2.
Ein Kalander bildet ein System mit sehr vielen Einwirkungsmöglichkeiten auf die zu behandelnde Bahn. Hierbei kann man die gleiche Eigenschaft mit unterschiedlichen Kombinationen der Kalanderfunktionen erreichen, beispielsweise wenn man eine geringere Druckspannung im Walzenspalt durch eine höhere Temperatur ersetzt. Es bereitet daher auch keine Schwierigkeiten, eine zusätzliche Abhängigkeit einzuführen, welche für eine höhere Gleichmäßigkeit im Wickel sorgt.A calender forms a system with a large number of possible influences on the web to be treated. Here you can have the same property with different Achieve combinations of the calendar functions, for example if you have a lower compressive stress in the Roll nip replaced by a higher temperature. It therefore does not cause any difficulties, an additional Introduce dependency, which for a higher Uniformity in the wrap ensures.
Unter Berücksichtigung der individuell anzusteuernden Zonen läßt sich für jeden einzelnen Teilwickel die optimale Wickelqualtiät erzielen.Taking into account the individually controllable Zones can be optimal for each individual sub-wrap Achieve winding quality.
Günstig ist es auch, daß bei Verwendung eines vertikalen Walzenstapels die zusätzliche Beeinflussung der Kalanderfunktionen überwiegend im Bereich des untersten Walzenspalts erfolgt. Zum einen hat die Beeinflussung vor, im oder nach dem untersten Walzenspalt die größte Wirkung, weil es sich um den Bereich am Kalanderausgang handelt. Zum andern sind für die Wickelqualität besonders maßgebende Dickenkorrekturen besonders leicht durch die Unterwalze, ggf. im Zusammenwirken mit der Oberwalze, durchzuführen, weil im untersten Walzenspalt wegen des Gewichts der darüber befindlichen Walzen die höchste Druckspannung herrscht.It is also favorable that when using a vertical Roller stack the additional influence of the Calender functions mainly in the area of the lowest Roll nip occurs. On the one hand has the influence the largest before, in or after the lowest nip Effect because it is the area at the calender exit acts. On the other hand, are special for the winding quality decisive thickness corrections are particularly easy through the lower roller, possibly in cooperation with the Top roller to perform because in the lowest nip because of the weight of the rollers above it the highest compressive stress prevails.
Vorzugsweise sind Meßvorrichtungen für die TeilbahnRollen-Durchmesser und/oder die Zugspannungen der Teilbahnen, die als Parameter dienen, vorgesehen. Bei Berücksichtigung dieser Parameter ergibt sich eine besonders gute Wickelqualität.Measuring devices for the partial web roll diameters are preferred and / or the tensile stresses of the Partial webs that serve as parameters are provided. At Taking these parameters into account results in a special good winding quality.
Wenn der Kalander eine den Walzenspalten vorgeschaltete Abwickelvorrichtung besitzt, der Kalander also im Offline-Betrieb arbeitet, ist der Erfindungsvorschlag besonders wichtig, weil die Bahn, bevor sie in den ersten Walzenspalt eintritt, schon einem Aufwickelvorgang am Ende der Papiermaschine und einem Abwickelvorgang am Eingang des Kalanders unterworfen war. Es wird daher dafür gesorgt, daß diese Belastung der Bahn nur einmal auftritt.If the calender upstream of the nips Unwinding device has, so the calender in offline mode works, the invention proposal is special important because the web before going in the first Nip occurs, already a winding process on End of the paper machine and an unwinding process on Was subjected to the entrance of the calender. It will therefore ensured that this strain on the web only once occurs.
Von Vorteil ist eine automatische Bahneinzugsvorrichtung. Eine solche Vorrichtung ist unter der Bezeichnung "Flying Splice" bekannt. Dies erlaubt einen automatischen Rollenwechsel am Kalandereingang.An automatic web feed device is advantageous. Such a device is under the name "Flying Splice" known. This allows one automatic roll change at the calender entrance.
Mit Vorteil ist jede Wickelstation mit einem automatischen Wickelhülsenwechsler versehen. Immer dann, wenn eine Teilrolle ihren maximalen Durchmesser erreicht hat, wird automatisch eine neue Wickelhülse zugeführt, so daß die neue Teilrolle ohne Unterbrechung des Kalanderbetriebs aufgebaut werden kann.Each winding station is advantageous with an automatic Provide winding tube changer. Whenever a partial roll reaches its maximum diameter a new winding tube is automatically fed in, so that the new sub-roll without interrupting the calender operation can be built.
Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten, bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:
- Fig. 1
- eine schematische Darstellung eines erfindungsgemäßen Kalanders und
- Fig. 2
- eine schematische Draufsicht auf den Schneidund Aufwickelbereich des Kalanders.
- Fig. 1
- a schematic representation of a calender according to the invention and
- Fig. 2
- a schematic plan view of the cutting and winding area of the calender.
Der in Fig. 1 veranschaulichte Kalander weist einen
Walzenstapel 1 auf, der aus acht Walzen besteht, nämlich
einer beheizbaren, durchbiegungssteuerbaren harten
Oberwalze 2, einer weichen Walze 3, einer beheizbaren
harten Walze 4, einer weichen Walze 5, einer weichen
Walze 6, einer beheizbaren harten Walze 7, einer weichen
Walze 8 und einer beheizbaren, durchbiegungssteuerbaren
harten Unterwalze 9. Auf diese Weise ergeben
sich sechs Arbeitsspalte 10 bis 15, die je durch eine
harte Walze und eine weiche Walze begrenzt sind, und
ein Wechselspalt 16, der durch zwei weiche Walzen 5 und
6 begrenzt ist.The calender illustrated in Fig. 1 has one
Roll stack 1, which consists of eight rolls, namely
a heatable, deflection-controllable hard
Top roller 2, a soft roller 3, a heatable
hard roller 4, a
Eine Papierbahn 17 wird von einer Abwickelvorrichtung
18 zugeführt, durchläuft unter der Führung von Leitrollen
19 die Arbeitsspalte 10 bis 12, den Wechselspalt 16
und die Arbeitsspalte 13 bis 15, worauf sie in einer
Wickelvorrichtung 20 aufgewickelt wird. In den drei
oberen Arbeitsspalten 10 bis 12 liegt die Papierbahn
mit der einen Seite, in den drei unteren Arbeitsspalten
13 bis 15 mit der anderen Seite an den harten Walzen
an, so daß beidseitig die gewünschte Oberflächenstruktur,
beispielsweise Glanz oder Glätte, erreicht wird.
Die mit einem Flying-Splice-System verbundene Abwickelvorrichtung
18 ist, da allgemein bekannt, lediglich als
Kästchen dargestellt.A
Zumindest eine der Walzen 2 bis 9 besitzt einen eigenen Antrieb 21. In vielen Fällen ist es jedoch zweckmäßig, alle Walzen mit einem solchen Antrieb zu versehen, beispielsweise wenn ein automatisches Einziehen der Papierbahn wünschenswert ist.At least one of the rollers 2 to 9 has its own Drive 21. In many cases, however, it is advisable to provide all rollers with such a drive, for example if there is an automatic feeding of the paper web is desirable.
Eine Steuervorrichtung 23 hat mehrere Funktionen:
Wenn die Papierbahn 17 den letzten Walzenspalt 15 verlassen
hat, läuft sie durch einen Längsschneider 32,
der rotierende Schneidmesser 33 und 34 aufweist, welche
auf einer gemeinsamen Achse 35 sitzen und durch einen
Motor 36 angetrieben werden. Hierdurch wird die Papierbahn
17, die eine Breite von beispielsweise 8 oder 10 m
haben kann, in einzelne Teilbahnen 17a, 17b, 17c ...
zerteilt. When the
Es folgt eine Aufwickelvorrichtung 37, die eine Anzahl
von Wickelstationen 37a, 37b, 37c ... aufweist, welche
der Anzahl der Teilbahnen 17a, 17b, 17c ... entspricht.
Allen Wickelstationen gemeinsam ist eine Zentralwalze
38, welche eine Antriebsvorrichtung 39 aufweist. Außerdem
weist jede Wickelstation eine Abstützwalze 40a,
40b, 40c ... auf, die je mit einer eigenen Antriebsvorrichtung
41 versehen sind. Wenn eine Wickelhülse 42 von
oben in den Spalt zwischen Zentralwalze 38 und Abstützwalze
40a abgesenkt und durch die rotierende Oberfläche
der beiden Walzen in Drehung versetzt wird, nimmt sie
eine Teilbahn auf und bildet eine Teilbahn-Rolle 43a.
Ähnliches gilt für die Teilbahn-Rollen 43b, 43c, ...There follows a
Jeder Teilbahn 17a ... ist eine Meßvorrichtung 44 zur
Messung der Zugspannung der Teilbahn zugeordnet. Jeder
Teilbahn-Rolle 43a ... ist eine Meßvorrichtung 45 zur
Messung des Rollendurchmessers zugeordnet. Die Meßwerte
werden in einer zweiten Steuervorrichtung 46 verarbeitet,
die die Antriebe 39 und 41 derart einstellt, daß
die Umfangsgeschwindigkeit der Zentralwalze 38 etwa
gleich der Bahngeschwindigkeit im Kalander ist, während
für jede Teilbahnrolle 43a ... erforderliche Korrekturen
durch die Antriebsvorrichtung 41 der Abstützrollen
erfolgt. Ist die Umfangsgeschwindigkeit der Abstützrolle
40a größer als diejenige der Zentralwalze 38, ergibt
sich ein härterer Wickel, ist sie geringer, ein weicherer
Wickel.Each partial web 17a ... is a measuring
Stattdessen oder zusätzlich ist die Steuervorrichtung
46 mit der Steuervorrichtung 31 über einen Signalpfad
47 verbunden. Außerdem können der Steuervorrichtung 46
über weitere Eingänge 48 zusätzliche Daten, die für den
Wickelvorgang von Interesse sind, zugeführt werden,
beispielsweise die Dicke der Bahn oder deren Feuchte.
Die Steuervorrichtung 23 ist in der Lage, aufgrund der
zugeführten Informationen die Kalanderfunktion derart
zu beeinflussen, daß die den letzten Walzenspalt 15
verlassende Papierbahn 17 weitgehend den optimalen
Wickelbedingungen entspricht und daher keine oder kaum
Eingriffe im Bereich der Aufwickelvorrichtung 37 vorzunehmen
sind. In vielen Fällen kann man daher auf eine
individuelle Regelung der Abstützwalzen 40a ... verzichten
und durchgehende Abstützwalzen vorsehen. Insbesondere
bei zonenweise unterschiedlicher Beeinflussung
der Papierbahn 17 im Kalander läßt sich erreichen,
daß die Teilbahnen 17a ... so gleichmäßig gehalten
sind, daß für alle der gleiche Aufwickelantrieb verwendet
werden kann.Instead or in addition, the
Von der dargestellten Konstruktion kann in vielfacher Hinsicht abgewichen werden, ohne den Grundgedanken der Erfindung zu verlassen. Beispielsweise können auch Aufwickelvorrichtungen verwendet werden, bei denen die Wickelhülse gelagert und angetrieben ist. Es ist auch möglich, den Kalander im Inline-Betrieb zu verwenden.The construction shown can be in multiple Be deviated without regard to the basic idea of Leaving invention. For example, winding devices can also be used used where the Winding sleeve is mounted and driven. It is also possible to use the calender in inline mode.
Claims (7)
- Calender for the treatment such as glazing or calendering of a web, in particular a paper web (17), with at least two rolls (2 to 9) forming a roll gap between them, at least one longitudinal cutter (32) for dividing the web into at least two partial webs (17a, 17b, 17c) and a wind-up device (37) comprising at least two winding stations (37a, 37b, 37c) each for a partial web (17a, 17b, 17c) and a drive which keeps the circumferential speed of the partial web rolls (43a, 43b, 43c) approximately equal to the web speed in the calender, wherein the at least one longitudinal cutter (32) is arranged between the last roll gap and the wind-up device (37), characterised in that measuring devices (44, 45) are provided for measuring parameters of the partial webs (17a, 17b, 17c) or of the partial web rolls (43a, 43b, 43c) and in that the winding stations (37a, 37b, 37c) each comprise their own drive device (41) with a control device (46) which in addition causes individual corrections of the circumferential speed as a function of said parameters.
- Calender for the treatment such as glazing or calendering of a web, in particular a paper web (17), with at least two rolls (2 to 9) forming a roll gap between them, at least one longitudinal cutter (32) for dividing the web into at least two partial webs (17a, 17b, 17c) and a wind-up device (37) comprising at least two winding stations (37a, 37b, 37c) each for a partial web (17a, 17b, 17c) and a drive which keeps the circumferential speed of the partial web rolls (43a, 43b, 43c) approximately equal to the web speed in the calender, wherein a control device (23) working in zones is provided for the calender functions such as compressive stress in the roll gap, dwell time in the roll gap, temperature or moisture, ensuring the desired properties of the web (17) such as smoothness or brightness, and wherein the at least one longitudinal cutter (32) is arranged between the last roll gap and the wind-up device (37) , characterised in that measuring devices (44, 45) are provided for measuring parameters of the partial webs (17a, 17b, 17c) or of the partial web rolls (43a, 43b, 43c) and in that the control device (23) controls the zones in addition individually as a function of said parameters.
- Calender according to claim 2, characterised in that when using a vertical roll stack (1) the additional control of calender functions takes place mainly in the region of the lowermost roll gap (15).
- Calender according to any of claims 1 to 3, characterised in that measuring devices (44, 45) are provided for the partial web roll diameters and/or the tensile stresses of the partial webs, which serve as parameters.
- Calender according to any of claims 1 to 4, characterised by a take-off device (18) mounted in front of the roll gaps (10 to 16).
- Calender according to any of claims 1 to 5, characterised by an automatic web feeder.
- Calender according to any of claims 1 to 6, characterised in that each winding station (37a, 37b, 37c) is provided with an automatic winding tube changer.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19519011 | 1995-05-24 | ||
DE19519011A DE19519011C2 (en) | 1995-05-24 | 1995-05-24 | calender |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0744492A1 EP0744492A1 (en) | 1996-11-27 |
EP0744492B1 true EP0744492B1 (en) | 2000-01-19 |
Family
ID=7762734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96107755A Expired - Lifetime EP0744492B1 (en) | 1995-05-24 | 1996-05-15 | Calender |
Country Status (6)
Country | Link |
---|---|
US (1) | US5771793A (en) |
EP (1) | EP0744492B1 (en) |
JP (1) | JPH08325981A (en) |
AT (1) | ATE189018T1 (en) |
CA (1) | CA2176641C (en) |
DE (3) | DE19519011C2 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19650576C2 (en) * | 1996-12-06 | 2001-02-15 | Kuesters Eduard Maschf | calender |
US5961899A (en) * | 1997-07-15 | 1999-10-05 | Lord Corporation | Vibration control apparatus and method for calender rolls and the like |
US7096779B2 (en) * | 1998-03-17 | 2006-08-29 | Eduard Küsters Maschinenfabrik GmbH & Co. KG | Calender arrangement |
DE19856277C1 (en) * | 1998-12-07 | 2000-06-21 | Stora Publication Paper Ag | Device and method for producing a paper web |
FI115146B (en) * | 2000-03-03 | 2005-03-15 | Metso Paper Inc | Method and arrangement for handling a wide web of paper or board |
DE10039040B4 (en) | 2000-08-10 | 2005-11-10 | Voith Paper Patent Gmbh | Method and device for producing paper rolls |
FI119631B (en) * | 2006-10-27 | 2009-01-30 | Metso Paper Inc | Production line for a fiber web and a roller cutting machine |
DE102010002703A1 (en) * | 2010-03-09 | 2011-09-15 | Metso Paper, Inc. | Arrangement for regulating force in gap between two rollers in paper- or cardboard machine, has spring rate changing units for changing spring rate of rolling system under retention of force between rollers and position of one of rollers |
US11076664B1 (en) | 2014-09-22 | 2021-08-03 | Apple Inc. | Fabric cases for electronic devices |
US11913143B2 (en) * | 2019-03-08 | 2024-02-27 | Apple Inc. | Fabric with electrical components |
CN113353688B (en) * | 2021-08-10 | 2021-10-12 | 南通好心情家用纺织品有限公司 | Weaving coiling mechanism with stoving removes wrinkle function |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB202753A (en) * | 1922-05-31 | 1923-08-30 | Samuel Milne | Improvements in calenders for calendering paper and the like |
FR30984E (en) * | 1925-10-07 | 1926-10-06 | Smoother | |
US1951182A (en) * | 1930-04-15 | 1934-03-13 | Hammermill Paper Co | Four-drum winder |
US1925866A (en) * | 1931-11-11 | 1933-09-05 | Westinghouse Electric & Mfg Co | Synchronized motor drive for supercalenders and winders |
DE2147912A1 (en) * | 1971-04-20 | 1972-11-09 | A. Ahlström Oy, Helsinki | Finishing paper webs - unwinding from roll passing through a succession of processing stations and rewinding finished web onto roll |
DE2118963C3 (en) * | 1971-04-20 | 1974-01-17 | A. Ahlstroem Oy, Helsinki | Method and device for continuously winding up webs of material in individual rolls and device for carrying out the method |
US3869095A (en) * | 1973-10-23 | 1975-03-04 | Beloit Corp | Three drum winder |
CH604940A5 (en) * | 1975-12-08 | 1978-09-15 | Escher Wyss Ag | |
EP0105789A1 (en) * | 1982-09-30 | 1984-04-18 | Canadian Fram Limited | Power steering pump failsafe clutch |
US4480537A (en) * | 1983-07-25 | 1984-11-06 | Agronin Ronald D | Method and apparatus for calendering a web |
FI72552C (en) * | 1984-02-08 | 1987-06-08 | Waertsilae Oy Ab | FOERFARANDE OCH ANORDNING FOER BEHANDLING AV BANA. |
JPS61116656A (en) * | 1984-11-12 | 1986-06-04 | Mitsui Petrochem Ind Ltd | Reagent for simple analysis of hydroperoxide |
JPH0629333B2 (en) * | 1986-10-31 | 1994-04-20 | 鐘淵化学工業株式会社 | Improved expandable polyolefin resin particles |
JPH0749319B2 (en) * | 1987-08-28 | 1995-05-31 | 株式会社タツノ・メカトロニクス | Lubrication nozzle with indicator |
JPH0235079A (en) * | 1988-01-26 | 1990-02-05 | Novagene Inc | Insertion mutant of infections bovine rhinotracheitis virus |
FI83249C (en) * | 1988-03-15 | 1991-06-10 | Valmet Paper Machinery Inc | Calendaring plant and process |
JPH03128697A (en) * | 1989-10-11 | 1991-05-31 | Tokyo Electric Co Ltd | Driving gear with torque compensating circuit |
JPH06330495A (en) * | 1993-05-18 | 1994-11-29 | Toshiba Corp | Control device for paper machine |
DE19508353A1 (en) * | 1995-03-09 | 1996-09-12 | Voith Sulzer Finishing Gmbh | Calender for the two-sided treatment of a paper web |
JP3128697B2 (en) * | 1999-07-29 | 2001-01-29 | ヤンマー農機株式会社 | Rice transplanter |
-
1995
- 1995-05-24 DE DE19519011A patent/DE19519011C2/en not_active Expired - Fee Related
- 1995-05-24 DE DE19549669A patent/DE19549669C2/en not_active Revoked
-
1996
- 1996-05-15 EP EP96107755A patent/EP0744492B1/en not_active Expired - Lifetime
- 1996-05-15 AT AT96107755T patent/ATE189018T1/en not_active IP Right Cessation
- 1996-05-15 CA CA002176641A patent/CA2176641C/en not_active Expired - Fee Related
- 1996-05-15 DE DE59604207T patent/DE59604207D1/en not_active Expired - Fee Related
- 1996-05-22 US US08/651,262 patent/US5771793A/en not_active Expired - Fee Related
- 1996-05-22 JP JP8126954A patent/JPH08325981A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ATE189018T1 (en) | 2000-02-15 |
DE59604207D1 (en) | 2000-02-24 |
JPH08325981A (en) | 1996-12-10 |
US5771793A (en) | 1998-06-30 |
CA2176641A1 (en) | 1996-11-25 |
DE19519011C1 (en) | 1996-05-15 |
DE19519011C2 (en) | 2001-02-01 |
DE19549669C2 (en) | 2002-10-10 |
CA2176641C (en) | 1999-03-30 |
EP0744492A1 (en) | 1996-11-27 |
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