EP1114890A2 - Arrangement de rouleaux et rouleau - Google Patents

Arrangement de rouleaux et rouleau Download PDF

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Publication number
EP1114890A2
EP1114890A2 EP00128225A EP00128225A EP1114890A2 EP 1114890 A2 EP1114890 A2 EP 1114890A2 EP 00128225 A EP00128225 A EP 00128225A EP 00128225 A EP00128225 A EP 00128225A EP 1114890 A2 EP1114890 A2 EP 1114890A2
Authority
EP
European Patent Office
Prior art keywords
roller
bore
roll
radial direction
gap
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.)
Withdrawn
Application number
EP00128225A
Other languages
German (de)
English (en)
Other versions
EP1114890A3 (fr
Inventor
Heinz-Michael Dr. Zaoralek
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.)
Schwaebische Huettenwerke Automotive GmbH
Original Assignee
Schwaebische Huettenwerke Automotive 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
Application filed by Schwaebische Huettenwerke Automotive GmbH filed Critical Schwaebische Huettenwerke Automotive GmbH
Publication of EP1114890A2 publication Critical patent/EP1114890A2/fr
Publication of EP1114890A3 publication Critical patent/EP1114890A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls

Definitions

  • the invention relates to a roller arrangement and a roller for printing and preferably also heat treatment of a web-shaped medium.
  • rollers that apply pressure to a web-like medium bend.
  • the roll gap in the middle of the roll is opposite the roll edges enlarged and the line pressure there lower.
  • At least one of the rollers is designed as a so-called bending compensation roller. This is what it is about around a roller with a continuous, non-rotating axis around which a tube rotates.
  • the tube is covered by a hydrostatic or hydrodynamic device supported on the axis, which absorbs the gap pressure and bends under the load.
  • the nip itself can at appropriate control of the hydraulic pressure can be adjusted evenly, such as also the line print.
  • the design of the bending compensation roller, the Hydraulic unit and the pressure control make such a device more expensive Roller arrangement.
  • a perfect one Compensation is achieved, for example, by using at least one of the rollers a so-called bombage.
  • this roller is equipped with a ground roll diameter decreasing towards the roll ends.
  • the disadvantage is that such a cut is only for a certain size of the line print fits. E.g. in the case of a change of type, a different line print is required, the Roller can be exchanged for one with a suitable bombage.
  • rollers are out a tubular body and an axis, which are fixed in the so-called quarter points connected and supported there.
  • the bending curve of the pipe is then W-shaped and the profile error less.
  • Roll deflection can compensate for changing line pressures.
  • the two roll journals are extended and each receive at its outer end an additional bearing, by means of which a counter pressure can be applied.
  • Via the lever arms to the main bearings The roller body is "bent back" to a certain extent. This only works for relatively short ones Rollers. The large forces involved in the manufacture of these rollers a solid steel core or composite casting materials are necessary, what this Roller arrangement very expensive. The compensation of the gap error is by no means perfect.
  • the local rigidity of the roller body in the radial direction i.e. the radial stiffness varies in such a way that by the axial direction changing radial rigidity a gap error is compensated for in the operation of the roller when rolling on a counter roll without the variation of the invention Stiffness would occur.
  • it has a roller rotationally symmetrical, hollow cylindrical roller body, whose radial Direction measured wall thickness changes in the axial direction.
  • the wall thickness is the larger the larger the gap width without the wall thickness variation according to the invention would.
  • the bore diameter or wall thickness is optimized so that it is practical a constant gap width over the length of the medium acting on the medium Roll body is achieved.
  • the variation in the radial rigidity of the roller body can be determined by a Support device can be realized, which in the roller body bore, i.e. in which itself through the roller body extending cavity is arranged.
  • the Support device can by one or preferably several in the bore or rings arranged in the cavity can be realized.
  • the ring or the preferred Several rings are dimensioned in this way and side by side in the axial direction arranged and in such an arrangement form the bore in such a way that the to expected gap error is compensated.
  • Advantageous support structures are the extend from the roll body jacket to the axis of rotation of the roll body, not mandatory. In the case of multiple rings, all of them Rings be identical or different, for example different widths in Axial direction of the roller body and / or different strengths in the radial direction to to optimally compensate for the gap errors to be expected during operation of the roller.
  • the variation of the radial rigidity is also preferred achieved directly by shaping a roll body shell.
  • the invention provides a roll and roll arrangement which can be produced cost-effectively for the pressure and optionally temperature treatment of web-like media, such as e.g. Paper provided.
  • web-like media such as e.g. Paper provided.
  • the invention also pursues, as one goal, the limits of use of the skewing facility e.g. to expand to so-called soft calenders.
  • this is Roller arrangements of two rollers, one of which has a hard roller and one heated surface while the other roller comparatively with one soft cover made of rubber or a polymer plastic. This reference gave the calender its name.
  • this effect is used for the remaining W-shaped error in the gap profile, as occurs when the rollers are interlaced.
  • To one or both rolls in the soft calender are provided with central bores, in the axial direction in diameter the expected gap error in the respective Position are adjusted in such a way that they line up with a uniform line give the amount of the gap error in the radial direction. It can be shown that both the amplitude of the gap error remaining after skewing and also the amount of elastic radial deformation proportional to the respective one Line printing behavior. This results in a correctly executed form of Central drilling with a skewing adapted to the line pressure without further correction an even gap pressure.
  • FIG. 1 shows an example of the gap error in a soft calender over the width of a web-shaped medium, in the exemplary embodiment over the width of the paper web, in a diagram as it results from a line pressure of 250 N / mm and an optimized entanglement.
  • Both rolls forming the gap have an outer diameter of 610 mm and a bearing center distance of 3,600 mm.
  • One of the roller bodies is made of chilled cast iron and the other of gray cast iron.
  • the paper web width shown is 2,800 mm.
  • the amplitude of the gap error is about + - 34 ⁇ m, which is no longer acceptable for a soft calender.
  • Figure 2 shows the roller 1 made of gray cast iron with an optimized wall thickness. For better An axial scale of 1:20 and a radial scale of 1:10 were chosen.
  • the roller 1 has one between its two bearing roller journals 2 rotationally symmetrical, hollow cylindrical roller body 3, which together with a Roll body of a counter roll forms the gap for the continuous web.
  • the Roller body 3 has a central bore 4 with a bore diameter d.
  • the bore diameter d changes along the axis of rotation of the roller.
  • the size of the Bore diameter d or the wall thickness of the roller body 3 is dependent of the course shown in Figure 1 without the compensation according to the invention expected gap error selected so that a gap of constant width as possible is obtained.
  • the concentric, axial bore through the roller body gradually increases from the two roller body ends to a point of greatest diameter d.
  • the roller diameter d is reduced in the two places with the largest diameter again gradually up to the axial center of the roller body, where the bore has the smallest diameter d. In this way, reverses the W-shaped
  • the course of the expected gap error according to FIG. 1 in the axial direction soft, M-shaped course on the inside of the roll body shell with a maximum wall thickness in the middle of the roller body and two symmetrical on both sides the middle of the minimum wall thickness.
  • FIG 3 shows both deformations depending on the line pressure. It becomes clear that both influences cancel each other regardless of the line pressure.
  • gap errors can also be found in other mechanical Adjusting devices, e.g. the roll bending, and basically also with one without remove the non-W-shaped bending curve of the roller according to the invention.

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
EP00128225A 2000-01-05 2000-12-22 Arrangement de rouleaux et rouleau Withdrawn EP1114890A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10000231 2000-01-05
DE10000231A DE10000231A1 (de) 2000-01-05 2000-01-05 Walzenanordnung und Walze

Publications (2)

Publication Number Publication Date
EP1114890A2 true EP1114890A2 (fr) 2001-07-11
EP1114890A3 EP1114890A3 (fr) 2002-09-25

Family

ID=7626805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00128225A Withdrawn EP1114890A3 (fr) 2000-01-05 2000-12-22 Arrangement de rouleaux et rouleau

Country Status (5)

Country Link
US (1) US20010020420A1 (fr)
EP (1) EP1114890A3 (fr)
JP (1) JP2001248631A (fr)
CN (1) CN1302933A (fr)
DE (1) DE10000231A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1900499A3 (fr) * 2003-08-13 2010-07-14 Herrmann Ultraschalltechnik GmbH & Co. KG Appareil pour la liaison et/ou la consolidation en continu de matériaux en bandes par ultrasons
US11821460B2 (en) 2019-12-20 2023-11-21 Matthews International Corporation Roller arrangement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI118813B (fi) * 2007-04-04 2008-03-31 Metso Paper Inc Kalanterin profiilisäätö
DE102009022120B4 (de) * 2009-05-20 2021-10-21 Johns Manville Europe Gmbh Mehrlagiges Filtermedium, Verfahren zur dessen Herstellung und dessen Verwendung in der Luft/Gas- und Flüssigkeitsfiltration, sowie Filtermodule enthaltend das mehrlagige Filtermedium
CN102535080B (zh) * 2012-03-19 2013-12-18 连云港鹰游纺机有限责任公司 曲线刃口烫光辊
CN109159544A (zh) 2014-06-26 2019-01-08 惠普发展公司，有限责任合伙企业 容器组件
CN114029514B (zh) * 2021-12-15 2023-12-08 江阴全华丰精锻有限公司 齿轮内孔鼓形优化方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1425902A1 (de) * 1964-01-22 1969-03-20 Artos Meier Windhorst Kg Verfahren zur Ausbildung von Walzen
US3705449A (en) * 1969-09-27 1972-12-12 Eduard Kuesters Rolling and squeezing apparatus
CH673128A5 (en) * 1988-07-11 1990-02-15 Escher Wyss Gmbh Pliable roller paper press - has adjustable angle between roller axes to give variety of pressures without roller change
US5012730A (en) * 1989-01-19 1991-05-07 J.M. Voith Gmbh Press roll for paper machines
WO1998010199A1 (fr) * 1996-09-06 1998-03-12 Poeppinghaus Winfried Procede et dispositif pour modifier la flexion d'un arbre, d'un axe ou d'un autre organe porteur
US5887237A (en) * 1996-02-08 1999-03-23 Fuji Xerox Co., Ltd. Reinforced thin cylindrical structure, image fixing device using this cylindrical structure, and method for manufacturing reinforced thin cylindrical structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE923182C (de) * 1952-12-13 1955-02-07 Krantz Soehne H Elastische Presswalze
DE4417674C2 (de) * 1994-05-17 2000-08-17 Nikolaus Steinberger Walzenkonstruktion für die Pressenpartie einer Papiermaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1425902A1 (de) * 1964-01-22 1969-03-20 Artos Meier Windhorst Kg Verfahren zur Ausbildung von Walzen
US3705449A (en) * 1969-09-27 1972-12-12 Eduard Kuesters Rolling and squeezing apparatus
CH673128A5 (en) * 1988-07-11 1990-02-15 Escher Wyss Gmbh Pliable roller paper press - has adjustable angle between roller axes to give variety of pressures without roller change
US5012730A (en) * 1989-01-19 1991-05-07 J.M. Voith Gmbh Press roll for paper machines
US5887237A (en) * 1996-02-08 1999-03-23 Fuji Xerox Co., Ltd. Reinforced thin cylindrical structure, image fixing device using this cylindrical structure, and method for manufacturing reinforced thin cylindrical structure
WO1998010199A1 (fr) * 1996-09-06 1998-03-12 Poeppinghaus Winfried Procede et dispositif pour modifier la flexion d'un arbre, d'un axe ou d'un autre organe porteur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1900499A3 (fr) * 2003-08-13 2010-07-14 Herrmann Ultraschalltechnik GmbH & Co. KG Appareil pour la liaison et/ou la consolidation en continu de matériaux en bandes par ultrasons
US11821460B2 (en) 2019-12-20 2023-11-21 Matthews International Corporation Roller arrangement

Also Published As

Publication number Publication date
EP1114890A3 (fr) 2002-09-25
CN1302933A (zh) 2001-07-11
DE10000231A1 (de) 2001-07-19
US20010020420A1 (en) 2001-09-13
JP2001248631A (ja) 2001-09-14

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