EP1243694A1 - Calandre - Google Patents

Calandre Download PDF

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Publication number
EP1243694A1
EP1243694A1 EP01107146A EP01107146A EP1243694A1 EP 1243694 A1 EP1243694 A1 EP 1243694A1 EP 01107146 A EP01107146 A EP 01107146A EP 01107146 A EP01107146 A EP 01107146A EP 1243694 A1 EP1243694 A1 EP 1243694A1
Authority
EP
European Patent Office
Prior art keywords
soft
roller
rollers
roll
rolls
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.)
Granted
Application number
EP01107146A
Other languages
German (de)
English (en)
Other versions
EP1243694B1 (fr
Inventor
Peter. Svenka
Bernhard. Brendel
Jörg Prey
Helmut Kox
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eduard Kuesters Maschinenfabrik GmbH and Co KG
Original Assignee
Eduard Kuesters Maschinenfabrik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eduard Kuesters Maschinenfabrik GmbH and Co KG filed Critical Eduard Kuesters Maschinenfabrik GmbH and Co KG
Priority to DE50102790T priority Critical patent/DE50102790D1/de
Priority to EP01107146A priority patent/EP1243694B1/fr
Priority to AT01107146T priority patent/ATE270728T1/de
Priority to US10/003,739 priority patent/US6688218B2/en
Priority to CA002371664A priority patent/CA2371664C/fr
Priority to JP2002043843A priority patent/JP4010828B2/ja
Priority to CNB021077967A priority patent/CN1221710C/zh
Publication of EP1243694A1 publication Critical patent/EP1243694A1/fr
Application granted granted Critical
Publication of EP1243694B1 publication Critical patent/EP1243694B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus

Definitions

  • the invention relates to a calender for the treatment of a paper web, in particular from gravure-compatible paper, according to the preamble of the claim 1.
  • Such a calender is used for the final treatment of a paper web, so that it has a desired value of smoothness, gloss, thickness, bulk and the like.
  • the use of hard and soft rollers enables the formation of soft nips, so-called soft nips, which is essential achieve more uniform compression than using two each hard rolls formed hard nips.
  • soft nips are disadvantageous wear-related shorter downtimes of the soft rollers, which makes the Maintenance effort and the associated downtimes of the known calenders are high.
  • EP 0 732 443 B1 discloses the elastic covering of the soft rollers to be replaced by a highly mark-insensitive cover. Such references are expensive, however, taking into account the short service life of the soft rollers are particularly important.
  • the object of the invention is therefore to provide a calender according to the preamble of To create claim 1, which provides very good smoothing results and cheaper in Operation is.
  • This task is characterized by the characteristics of the characteristic part of the Claim 1 solved.
  • Downtime of the calender for Maintenance measures can thus be reduced because according to the invention essentially all soft rolls of a calender stack have the same service life.
  • the maintenance measures on the soft Rollers are bundled in that they are carried out simultaneously can.
  • the design according to the invention is also important because of the Use of soft end rolls in a roll stack is advantageous.
  • the use of soft end rollers allows the setting of higher ones Temperatures in the first and / or last nip.
  • the end rollers are common Bending compensation rollers with an inner structure that is high setting Temperatures difficult. If, however, the second roller is a hard roller, then can be driven with this high temperature.
  • the diameter of a soft intermediate roller is 1.1 to 1.5 times that Diameter of a soft end roll, although the intermediate rolls are opposite are rolled over twice on the soft end rollers.
  • the enlargement of the Diameter of the soft intermediate rolls depends on the above Range according to the paper quality, especially the composition of matter, the Coating color composition or the filler content of the treated Paper web. The higher the proportion of roughness-causing Paper web components, the larger the diameter of the soft Intermediate rolls can be selected.
  • All of the rolls in a roll stack preferably have their own Power drive to thereby increase the shear stresses in the individual nips minimize. These shear stresses, otherwise caused by the transmission of the Drive power on the rollers through the run of the paper web in the nips arise and increase the wear of the soft intermediate rolls avoided. The diameter of the intermediate rolls can then be increased turn out small.
  • the diameter is preferably dependent on the web running speed a soft intermediate roller selected such that the rollover frequency is 20 to 25 Hz.
  • the design according to the invention allows the use of the known Roller loading and / or unloading systems in order in the individual soft nips to be able to adjust certain line loads, so that with individual Line load characteristics can be worked.
  • the design according to the invention also allows the use of any Roll stack configurations.
  • two of the roll stacks according to the invention can be connected in series be, the first roll stack for treating one side of the paper web and the other roll stack to treat the other side of the paper web be used.
  • the first roll stack for treating one side of the paper web
  • the other roll stack to treat the other side of the paper web be used.
  • the top and lower end rolls soft rolls are preferred.
  • To optimize the Paper web guides can be separated when using two Roll stacks these are arranged next to each other at different heights, which means that Path length of the paper web between the two roller stacks is shortened and the Introduction of the paper web is simplified. Undesirable changes in Paper web can be avoided.
  • the at least one a roll stack have six or eight rolls, the upper and lower End roller are soft rollers and an alternating gap between two soft ones Intermediate rolls is formed.
  • Fig. 1 shows a calender 1 for the treatment of a paper web, in particular made of gravure-proof paper or such a paper that is glossy too is smooth.
  • the calender 1 comprises at least one loadable from the end Roll stack 2 with an upper end roller 3 and a lower end roller 4 and several intermediate rolls 5, 6, 7, together in a roll stacking plane are arranged.
  • the roll stack 2 according to FIG. 1 comprises three intermediate rolls 5, 6, 7 and thus consists of five rolls 2 to 7, which are in a vertical Roll stack level are arranged. Alternatively, the roller stack level inclined or horizontal. Between two of the rollers 3 to 7 are Nips 8, 9, 10, 11 formed, which the paper web 12 in a direction D passes.
  • nips in the form of soft nips in which one hard and one soft To limit a nip roller, rollers 2 through 7 are hard and soft rollers 1, the upper end roller 3 is a soft roller which upper intermediate roller 5 a hard roller, the middle intermediate roller 6 a soft roller, the lower intermediate roller 7 a hard roller and the lower one End roller 4 is a soft roller.
  • the nips 8 to 11 are therefore all soft nips, in which the paper web 12 passing through the roll stack 2 is smoothed. There only the upper web side of the paper web 12 in the nips 8, 9, 10, 11 in System with the hard rollers 5, 7 reaches and undergoes smoothing there, serves the roll stack 2 for one-sided treatment of a paper web.
  • the soft rollers 3, 4, 6 are rollers with an elastic cover, the Material can be selected depending on the application.
  • the diameter of the soft The intermediate roller 6 is larger than the diameter of the soft end rollers 3, 4.
  • the diameter of a soft intermediate roller 6 is preferably 1.1 to 1.5 times the diameter of a soft end roller 3, 4.
  • the diameter the two soft end rollers 3, 4 can be identical.
  • the diameter of a soft intermediate roller 6 can be selected such that the rollover frequency 20 to 25 Hz.
  • the rollers 3 to 7 are attached to a calender stand 13.
  • the attachment takes place via storage facilities on which lever guides 14, 15, 16, as for the Intermediate rollers 5 to 7 shown, or slide guides 17, as for the end rollers 3, 4 shown, can attack.
  • the rollers 3, 4, 5, 6, 7 can be loaded at least from one end.
  • a hydraulic cylinder 19 is provided here can also be used to load the roll stack 2. The upper End roller 3 is then fixed.
  • Each roller 3 to 7 is preferably with its own power drive 31 to 35 Mistake.
  • the upper end roller 3 and the lower end roller 4 are also preferably as Bending adjustment rollers formed.
  • loading or Relief devices 41, 42, 43 may be provided which act on the lever guides 14, 15, 16 of the intermediate rollers act.
  • the roll stack 2 can be one on-line or off-line Paper machine can be used.
  • All hard and possibly soft rollers can be tempered or heated his.
  • a second can be used to smooth the second side of the paper web 12, as shown in FIG Roll stack 2 'may be provided, which is connected behind the roll stack 2 and the paper web 12 like the first roll stack 2 from top to bottom passes.
  • the second roll stack 2 ' again smoothed the side of the paper web 12, each in the nips with the hard rollers come into contact.
  • the second roll stack 2 ' is preferred constructed exactly like the first roll stack 2, so that for the same components same reference numerals with a prime are used. The The above statements on the roll stack 2 apply accordingly to the roll stack 2 '.
  • the embodiment of a calender 1 shown in FIG. 3 differs from the embodiment of a calender 1 shown in FIG. 2 only in that the second roll stack 2 'is offset in height from the first Roll stack 2 is arranged.
  • the two roll stacks 2, 2 ' are preferably like this vertically offset one behind the other that at least only the uppermost nip 8 ' of the second roll stack 2 'is higher than the lowermost nip 11 of the first Roll stack 2. This ensures that while maintaining a sufficient tension of the paper web as straight and as possible also the shortest guidance of the paper web 12 in the alternating gap between the first and second roll stack is reached.
  • Roll stack 102 is at least from one end resilient and includes an upper end roller 103 and a lower end roller 104 and a plurality of intermediate rolls 105, 106, 107, 108, which together in one Roll stack level are arranged.
  • the roll stack 102 according to FIG. 4 comprises four intermediate rollers 105, 106, 107, 108 and thus consists of six rollers, the are arranged in a vertical roller stack plane. Alternatively, the Roll stack plane inclined or horizontal. Between two of each Rolls 103 to 108 are formed nips 109, 110, 150, 111, 112, which the Paper web 12 passes through in a direction D.
  • rollers 103-108 are considered hard and soft 4
  • the upper end roller 103 is a soft one Roller
  • the upper intermediate roller 105 a hard roller
  • two middle Intermediate rollers 106, 107 each have a soft roller
  • the lower intermediate roller 108 is a hard roller
  • the lower end roller 104 is a soft roller.
  • the Nips 109, 110, 111 and 112 are all soft nips between a hard and a soft roller, in each of which the roller stack 2 passing through Paper web 12 on the side that comes into contact with a hard roller, is especially smoothed.
  • the change nip 150 is between the two soft ones Intermediate rollers 106, 107 formed and leads to that in the nips 111 and 112, the other paper web side in contact with the hard roller 108 arrives for a two-sided smoothing of the paper web in a roller stack 102.
  • the soft rollers 103, 104, 106, 107 are rollers with an elastic one Cover, the material of which can be selected depending on the application.
  • the diameter of the the two soft intermediate rolls 106, 107 are each larger than the diameter of the soft end rollers 103, 104.
  • the diameter is preferably one soft intermediate roller 106, 107 1.1 to 1.5 times the diameter of one soft end roller 103, 104.
  • the diameters of the two soft end rollers 103, 104 can be identical. In particular, depending on the Web running speed the diameter of a soft intermediate roller 106, 107 can be selected such that the rollover frequency is 20 to 25 Hz.
  • the rollers 103 to 108 are attached to a calender stand 113.
  • the Attachment takes place via bearing devices on which lever guides 114, 115, 116, 117 as shown for the intermediate rolls 105 to 108, or sliding guides 118, 119 as shown for the end rollers 103, 104, can attack.
  • the rolls are at least from resilient at one end.
  • Hydraulic cylinder 120 is provided, which also loads the roller stack 102 can be used.
  • the upper end roller 103 is then stationary arranged.
  • Each roller 103 to 108 is preferably with its own power drive 131 provided up to 136.
  • the upper end roller 103 and the lower end roller 104 are also preferred designed as a bend adjustment roller.
  • loading or Relief devices 141, 142, 143, 144 can be provided, which on the Lever guides 114, 115, 116, 117 of the intermediate rollers act.
  • the roll stack 102 can be on-line or off-line a paper machine can be used.
  • All hard and possibly soft rollers can be tempered or heated his.
  • the embodiment shown in FIG. 5 differs from that in FIG. 4 illustrated and described embodiment in that the Roll stack 102 comprises eight rolls, i.e. two further intermediate rolls 160, 161, thereby increasing the number of rolls over the changing nip 150.
  • the Intermediate roller 160 is a soft roller for which the soft roller Intermediate rollers 106, 107 previously said applies accordingly.
  • the intermediate roller 161 is designed as a hard roller.
  • the resulting additional Soft nips 162, 163 increase the smoothing of the in front of the alternating gap 150 treating paper web side. Otherwise, the above statements apply corresponding.

Landscapes

  • Paper (AREA)
  • Lubricants (AREA)
EP01107146A 2001-03-22 2001-03-22 Calandre Expired - Lifetime EP1243694B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE50102790T DE50102790D1 (de) 2001-03-22 2001-03-22 Kalander
EP01107146A EP1243694B1 (fr) 2001-03-22 2001-03-22 Calandre
AT01107146T ATE270728T1 (de) 2001-03-22 2001-03-22 Kalander
US10/003,739 US6688218B2 (en) 2001-03-22 2001-11-14 Calender
CA002371664A CA2371664C (fr) 2001-03-22 2002-02-14 Calandre
JP2002043843A JP4010828B2 (ja) 2001-03-22 2002-02-20 カレンダ
CNB021077967A CN1221710C (zh) 2001-03-22 2002-03-22 轧光机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01107146A EP1243694B1 (fr) 2001-03-22 2001-03-22 Calandre

Publications (2)

Publication Number Publication Date
EP1243694A1 true EP1243694A1 (fr) 2002-09-25
EP1243694B1 EP1243694B1 (fr) 2004-07-07

Family

ID=8176888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107146A Expired - Lifetime EP1243694B1 (fr) 2001-03-22 2001-03-22 Calandre

Country Status (7)

Country Link
US (1) US6688218B2 (fr)
EP (1) EP1243694B1 (fr)
JP (1) JP4010828B2 (fr)
CN (1) CN1221710C (fr)
AT (1) ATE270728T1 (fr)
CA (1) CA2371664C (fr)
DE (1) DE50102790D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026109A1 (de) * 2005-06-07 2006-12-14 Andritz Küsters GmbH & Co. KG Verfahren zum Kalandrieren einer Warenbahn und Kalander hierzu

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10129102B4 (de) * 2001-06-16 2005-12-15 Voith Paper Patent Gmbh Kalander
FI5144U1 (fi) * 2001-08-16 2001-11-28 Metso Paper Inc Kalanteri
FI5612U1 (fi) * 2002-08-02 2002-11-27 Metso Paper Inc Porrastettu kalanteri
FI119068B (fi) * 2004-11-12 2008-07-15 Metso Paper Inc Menetelmä kalanterissa ja monitelakalanteri sekä menetelmä monitelakalanterin kalanteritelan laakerin kuormittamiseksi ja monitelakalanteri
US20060102019A1 (en) * 2005-09-23 2006-05-18 Pasi Kakkonen Method and arrangement for calendering a web
FI118813B (fi) * 2007-04-04 2008-03-31 Metso Paper Inc Kalanterin profiilisäätö
US9532706B2 (en) 2014-08-07 2017-01-03 Welch Allyn, Inc. Vaginal speculum with illuminator
DE102015106045B3 (de) * 2015-04-21 2016-08-11 Andritz Küsters Gmbh Kalander

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332191A (en) * 1979-10-15 1982-06-01 Valmet Oy Calender
US5746124A (en) * 1995-12-16 1998-05-05 Voith Sulzer Finishing Gmbh Calender for treating a web of paper

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI62373C (fi) * 1979-10-15 1982-12-10 Valmet Oy Foerfarande foer kalandrering av papper och kalander som tillaempar foerfarandet
FI62374C (fi) * 1980-05-22 1982-12-10 Valmet Oy On-machine superkalander foer papper eller motsvarande
DE3711334A1 (de) * 1987-04-03 1988-10-13 Escher Wyss Gmbh Vorrichtung zur fuehrung der walzen eines im wesentlichen vertikalen kalanders
DE19508352B4 (de) 1995-03-09 2005-07-21 Voith Paper Patent Gmbh Kalander für die Behandlung einer Papierbahn
DE29521610U1 (de) * 1995-03-09 1997-11-20 Voith Sulzer Finishing GmbH, 47803 Krefeld Kalander für die Behandlung einer Papierbahn
DE19511145C2 (de) * 1995-03-27 2000-07-13 Voith Sulzer Finishing Gmbh Kalander für die zweiseitige Papierbehandlung
FI107626B (fi) * 1996-05-06 2001-09-14 Metso Paper Inc Menetelmä kalanterin, etenkin superkalanterin telaston pika-avauksessa ja hydraulijärjestelmä kalanterin, etenkin superkalanterin telastoa varten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332191A (en) * 1979-10-15 1982-06-01 Valmet Oy Calender
US5746124A (en) * 1995-12-16 1998-05-05 Voith Sulzer Finishing Gmbh Calender for treating a web of paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026109A1 (de) * 2005-06-07 2006-12-14 Andritz Küsters GmbH & Co. KG Verfahren zum Kalandrieren einer Warenbahn und Kalander hierzu

Also Published As

Publication number Publication date
US20020134255A1 (en) 2002-09-26
DE50102790D1 (de) 2004-08-12
JP2002275783A (ja) 2002-09-25
EP1243694B1 (fr) 2004-07-07
US6688218B2 (en) 2004-02-10
CN1378009A (zh) 2002-11-06
JP4010828B2 (ja) 2007-11-21
CN1221710C (zh) 2005-10-05
CA2371664C (fr) 2008-04-22
ATE270728T1 (de) 2004-07-15
CA2371664A1 (fr) 2002-09-22

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