EP1209286A3 - Calender and process for treating a web - Google Patents

Calender and process for treating a web Download PDF

Info

Publication number
EP1209286A3
EP1209286A3 EP01127208A EP01127208A EP1209286A3 EP 1209286 A3 EP1209286 A3 EP 1209286A3 EP 01127208 A EP01127208 A EP 01127208A EP 01127208 A EP01127208 A EP 01127208A EP 1209286 A3 EP1209286 A3 EP 1209286A3
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
mbml
sag
distance
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
EP01127208A
Other languages
German (de)
French (fr)
Other versions
EP1209286B1 (en
EP1209286A2 (en
Inventor
Junk Dieter
Linder Heiko
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7664275&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1209286(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1209286A2 publication Critical patent/EP1209286A2/en
Publication of EP1209286A3 publication Critical patent/EP1209286A3/en
Application granted granted Critical
Publication of EP1209286B1 publication Critical patent/EP1209286B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure
    • D21G1/0026—Arrangements for maintaining uniform nip conditions
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

A calender has a bunched array of rollers with two end-rollers and a number of intermediate rollers. In operation two neighbouring rollers, each of which sags slightly, form a nip. The sag of adjacent rollers (i, i + 1) differs. especially the second roller facing the concave surface of the first roller, has less sag than the first. Also claimed is a process to treat a material web passing through several nips where it is subjected to pressure and each nip is formed by a first and second roller. The sag in each roller has a bending amplitude on the convex side of the first roller which is essentially identical to the bending amplitude on the concave side of the second roller. Each roller has a set of support bearings left and right. The distance MbML between the bearings on one roller is 0.1 to 2 per cent different to the distance MbML in the second roller bearing, with reference to the longer of the two dimensions. At least one of the intermediate bearings has a variable bearing distance MbML.
EP01127208A 2000-11-23 2001-11-16 Calender and process for treating a web Revoked EP1209286B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10057991 2000-11-23
DE10057991A DE10057991C5 (en) 2000-11-23 2000-11-23 Calender and method of treating a web

Publications (3)

Publication Number Publication Date
EP1209286A2 EP1209286A2 (en) 2002-05-29
EP1209286A3 true EP1209286A3 (en) 2003-02-12
EP1209286B1 EP1209286B1 (en) 2006-04-05

Family

ID=7664275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127208A Revoked EP1209286B1 (en) 2000-11-23 2001-11-16 Calender and process for treating a web

Country Status (5)

Country Link
US (1) US6698340B2 (en)
EP (1) EP1209286B1 (en)
AT (1) ATE322573T1 (en)
CA (1) CA2363633A1 (en)
DE (2) DE10057991C5 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1326392A (en) * 1962-01-26 1963-05-10 Neyrpic Ateliers Neyret Beylie Calenders
US5438920A (en) * 1993-11-24 1995-08-08 Valmet Paper Machinery Inc. Method for calendering a paper or an equivalent web material and a calender that makes use of the method
WO1998050628A1 (en) * 1997-05-07 1998-11-12 Valmet Corporation Method and arrangement for computing and regulation of the distribution of linear load in a multi-nip calender and a multi-nip calender
DE19820089A1 (en) * 1998-05-06 1999-11-18 Kuesters Eduard Maschf Method for calendering a web with a vertical multi-roll calender and a calender therefor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI74070C (en) * 1986-04-09 1987-12-10 Valmet Oy A method for controlling the bending of a bending controlled roller, as well as a roller for a paper machine for applying the method
DE3735438C1 (en) * 1987-10-20 1989-05-18 Kleinewefers Gmbh Process for operating a calender and calender for carrying out this process
DE3838852C1 (en) * 1988-11-17 1990-05-23 J.M. Voith Gmbh, 7920 Heidenheim, De
DE4026773A1 (en) * 1990-08-24 1992-03-05 Voith Gmbh J M LINEAR POWER ADJUSTABLE MULTI-ROLLER GLOSSWORK
DE19511145C2 (en) * 1995-03-27 2000-07-13 Voith Sulzer Finishing Gmbh Calender for double-sided paper treatment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1326392A (en) * 1962-01-26 1963-05-10 Neyrpic Ateliers Neyret Beylie Calenders
US5438920A (en) * 1993-11-24 1995-08-08 Valmet Paper Machinery Inc. Method for calendering a paper or an equivalent web material and a calender that makes use of the method
WO1998050628A1 (en) * 1997-05-07 1998-11-12 Valmet Corporation Method and arrangement for computing and regulation of the distribution of linear load in a multi-nip calender and a multi-nip calender
DE19820089A1 (en) * 1998-05-06 1999-11-18 Kuesters Eduard Maschf Method for calendering a web with a vertical multi-roll calender and a calender therefor

Also Published As

Publication number Publication date
DE50109422D1 (en) 2006-05-18
CA2363633A1 (en) 2002-05-23
ATE322573T1 (en) 2006-04-15
DE10057991C5 (en) 2007-04-19
EP1209286B1 (en) 2006-04-05
DE10057991C1 (en) 2002-06-27
EP1209286A2 (en) 2002-05-29
US6698340B2 (en) 2004-03-02
US20020134253A1 (en) 2002-09-26

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