WO1999047750A1 - Kalanderanordnung - Google Patents
Kalanderanordnung Download PDFInfo
- Publication number
- WO1999047750A1 WO1999047750A1 PCT/EP1999/001412 EP9901412W WO9947750A1 WO 1999047750 A1 WO1999047750 A1 WO 1999047750A1 EP 9901412 W EP9901412 W EP 9901412W WO 9947750 A1 WO9947750 A1 WO 9947750A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- rollers
- drive
- power
- calender arrangement
- Prior art date
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
- D21G1/0006—Driving arrangements
Definitions
- the invention relates to a calender arrangement.
- FIG. 1 shows a schematic side view of a known off-line calender, in which an intermediate roller 2, that is the drive roller with a main drive, is driven.
- the top and bottom rolls of the roll stack are designed as deflection-controllable rolls. Due to their function-related internal friction losses, these two rolls require a greater driving force than the other calender rolls. In addition, the strongest forming of the paper web takes place in the first nip. In conventional calenders with a main drive, these two power components have to be dragged through the entire roll stack and thereby damage the paper web and the roll covers by frictionally transmitting the tangential forces. This results in increased wear on the roller surfaces and a reduction in the service life of the rollers.
- the object of the invention is to provide a calender, the roller drive is designed so that the disadvantages of the prior art described can be avoided inexpensively.
- the bend-controllable rollers are each provided with their own power drive.
- a bend-controllable top roller and bottom roller are each driven with coordinated outputs. It is preferred that to detect horizontal deformation of an intermediate roller and to control or regulate the power distribution to the two drives so that this deformation remains at least below a still permissible size. It has been shown that this requirement can be met if the top roller and bottom roller are driven with essentially the same power.
- FIGS. 3 and 4 Two embodiments of the calender arrangement according to the invention are shown schematically in the accompanying FIGS. 3 and 4 in a side view.
- 3 shows an analog calender arrangement to FIG. 1
- FIG. 4 shows an analog calender arrangement to FIG. 2.
- the symbols for the power drive or auxiliary drive in FIGS. 3 and 4 correspond to the symbols for the main drive and auxiliary drive in FIGS. 1 and 2.
- the calender rolls are subjected to the specified line load at which the specified compressive stresses develop in the nips.
- the calendering forces are generated according to the load by the two power drives of the top and bottom rollers.
- An intermediate roller is expediently provided with sensors for the horizontal deformations, and the drive power is distributed to the top and bottom rollers in such a way that these horizontal deformations are minimized. Alternatively, the horizontal forces acting on an intermediate roller can also be measured and minimized.
- the paper web 10 first runs into the nip, formed between the upper deflection-controllable roller 12 and the first intermediate roller 14, which is a heatable hard roller. Thereafter, it passes into the nip formed between the latter and a middle intermediate roller 16; Roller 16 is provided with an elastic cover. It forms on the side facing away from the roller 14 with a second heatable hard roller 18 the next one passing through the paper web 10 Nip. A final nip is formed between roller 18 and the lower deflection controllable roller 20.
- the rollers 12 and 20 are equipped with power drives.
- the intermediate rollers 14, 16 and 18 are mounted in levers 22, via which the forces of working cylinders 24 can be introduced, in particular to compensate for the so-called overhanging loads.
- Hydraulic units 26 are used to close the nips; instead, one could also use the inner stroke of the roller 20 for this purpose, while the upper deflection-controllable roller 12 is fixed in the frame.
- transverse forces can be measured using probe elements, not shown, and the power distribution of the drives for the upper roller 12 and the lower roller 20 can be set as a function of the measurement result, so that these transverse forces do not exceed a predetermined value.
- possible deformations of the intermediate rolls 14, 16, 18, in particular in the middle of their rolls can be measured by means of measuring elements. This measurement result can flow into the power distribution of the drives for the upper roller 12 and the lower roller 20 in order to minimize these deformations as well.
- the concept according to the invention is particularly suitable for converting existing calenders, in which there are often cramped conditions, or for narrower machines with lower drive power and stiffer intermediate rolls.
Landscapes
- Paper (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT99911737T ATE239825T1 (de) | 1998-03-17 | 1999-03-04 | Kalanderanordnung |
JP54647399A JP2001526747A (ja) | 1998-03-17 | 1999-03-04 | カレンダ装置 |
EP99911737A EP0990070B1 (de) | 1998-03-17 | 1999-03-04 | Kalanderanordnung |
CA002290558A CA2290558A1 (en) | 1998-03-17 | 1999-03-04 | Calendar arrangement |
DE59905425T DE59905425D1 (de) | 1998-03-17 | 1999-03-04 | Kalanderanordnung |
US11/009,596 US7096779B2 (en) | 1998-03-17 | 2004-12-10 | Calender arrangement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19811474.5 | 1998-03-17 | ||
DE19811474A DE19811474A1 (de) | 1998-03-17 | 1998-03-17 | Kalanderanordnung |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09424076 A-371-Of-International | 2000-02-15 | ||
US10/313,985 Continuation-In-Part US20030126998A1 (en) | 1998-03-17 | 2002-12-05 | Calender arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999047750A1 true WO1999047750A1 (de) | 1999-09-23 |
Family
ID=7861139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/001412 WO1999047750A1 (de) | 1998-03-17 | 1999-03-04 | Kalanderanordnung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0990070B1 (de) |
JP (2) | JP2001526747A (de) |
AT (1) | ATE239825T1 (de) |
CA (1) | CA2290558A1 (de) |
DE (2) | DE19811474A1 (de) |
WO (1) | WO1999047750A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1156937A (en) * | 1965-09-24 | 1969-07-02 | Black Clawson Co | Paper Machinery |
DE29504034U1 (de) * | 1995-03-09 | 1995-05-04 | Voith Sulzer Finishing GmbH, 47803 Krefeld | Kalander für die zweiseitige Behandlung einer Papierbahn |
DE19650576A1 (de) * | 1996-12-06 | 1998-06-10 | Kuesters Eduard Maschf | Kalander |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3711334A1 (de) * | 1987-04-03 | 1988-10-13 | Escher Wyss Gmbh | Vorrichtung zur fuehrung der walzen eines im wesentlichen vertikalen kalanders |
JPH0349591A (ja) * | 1989-07-13 | 1991-03-04 | Toshiba Corp | 加工システムの制御装置 |
DE19508353A1 (de) * | 1995-03-09 | 1996-09-12 | Voith Sulzer Finishing Gmbh | Kalander für die zweiseitige Behandlung einer Papierbahn |
DE29521610U1 (de) * | 1995-03-09 | 1997-11-20 | Voith Sulzer Finishing GmbH, 47803 Krefeld | Kalander für die Behandlung einer Papierbahn |
DE19521402C2 (de) * | 1995-06-13 | 2002-02-07 | Voith Paper Gmbh | Kalander für die Behandlung einer Papierbahn |
DE19803323C2 (de) * | 1998-01-29 | 2003-06-05 | Voith Paper Patent Gmbh | Verfahren zur Beeinflussung eines Bahnmaterials, wie Papier, und Kalander zur Durchführung des Verfahrens |
-
1998
- 1998-03-17 DE DE19811474A patent/DE19811474A1/de not_active Withdrawn
-
1999
- 1999-03-04 CA CA002290558A patent/CA2290558A1/en not_active Abandoned
- 1999-03-04 AT AT99911737T patent/ATE239825T1/de not_active IP Right Cessation
- 1999-03-04 EP EP99911737A patent/EP0990070B1/de not_active Expired - Lifetime
- 1999-03-04 WO PCT/EP1999/001412 patent/WO1999047750A1/de active IP Right Grant
- 1999-03-04 DE DE59905425T patent/DE59905425D1/de not_active Expired - Lifetime
- 1999-03-04 JP JP54647399A patent/JP2001526747A/ja active Pending
-
2008
- 2008-06-17 JP JP2008157646A patent/JP4575476B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1156937A (en) * | 1965-09-24 | 1969-07-02 | Black Clawson Co | Paper Machinery |
DE29504034U1 (de) * | 1995-03-09 | 1995-05-04 | Voith Sulzer Finishing GmbH, 47803 Krefeld | Kalander für die zweiseitige Behandlung einer Papierbahn |
DE19650576A1 (de) * | 1996-12-06 | 1998-06-10 | Kuesters Eduard Maschf | Kalander |
Also Published As
Publication number | Publication date |
---|---|
EP0990070A1 (de) | 2000-04-05 |
JP2001526747A (ja) | 2001-12-18 |
ATE239825T1 (de) | 2003-05-15 |
JP4575476B2 (ja) | 2010-11-04 |
DE59905425D1 (de) | 2003-06-12 |
JP2008285806A (ja) | 2008-11-27 |
EP0990070B1 (de) | 2003-05-07 |
CA2290558A1 (en) | 1999-09-23 |
DE19811474A1 (de) | 1999-09-23 |
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