EP0972881A2 - Calandre - Google Patents

Calandre Download PDF

Info

Publication number
EP0972881A2
EP0972881A2 EP99112385A EP99112385A EP0972881A2 EP 0972881 A2 EP0972881 A2 EP 0972881A2 EP 99112385 A EP99112385 A EP 99112385A EP 99112385 A EP99112385 A EP 99112385A EP 0972881 A2 EP0972881 A2 EP 0972881A2
Authority
EP
European Patent Office
Prior art keywords
guide element
guideway
bearing block
calender according
stand
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
EP99112385A
Other languages
German (de)
English (en)
Other versions
EP0972881B1 (fr
EP0972881A3 (fr
Inventor
Ralf Dipl.-Ing. Beckers
Joachim Dipl.-Ing. Hinz
Thomas Dipl.-Ing. Wöhner
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
Voith Sulzer Papiertechnik 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
Application filed by Voith Paper Patent GmbH, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0972881A2 publication Critical patent/EP0972881A2/fr
Publication of EP0972881A3 publication Critical patent/EP0972881A3/fr
Application granted granted Critical
Publication of EP0972881B1 publication Critical patent/EP0972881B1/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
    • D21G1/02—Rolls; Their bearings
    • D21G1/0226—Bearings
    • 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 with a Stand and a roll stack, the lower roll one Deflection roll is, with a jacket over one acting in the direction of the center plane of the roll stack Deflection adjustment device against one Rotation-secured carrier is supported on both Ends in adjustable by load devices Bearing blocks is held.
  • the multi-roll stack has a vertical center plane.
  • the bearing blocks for the as deflection adjustment rollers trained bottom rollers are in a linear guide held and guided on the stand.
  • Below the bearing blocks each have a loading device in the form of a hydraulic cylinder that applies the contact pressure the lower roller against the in levers above the lower roller stored center rolls of the calender and finally generated against the stationary top roller. Frictional forces occur with this linear guide on, which falsify the stress forces and in particular to uneven loads on both roller ends to lead.
  • the invention is based, to a large extent the task smooth movement of the lower roller bearing blocks to enable.
  • each bearing block can be swiveled with a single one on the stand mounted pivot lever is connected and that the Direction of action of the deflection adjusting device an adjustment of the bearing blocks with the aid of a correction device, the one along a guideway has displaceable guide element, essentially is maintained.
  • the correction device intended.
  • the lower roller moves the guide element along the guideway and acts on the Deflection adjuster so that their Maintains direction of action.
  • the guideway is preferably attached to the stand and the guide element is movable with the bearing block.
  • the placement of the guideway on the stand makes no difficulties in practice. Through the Movement of the bearing block will trigger the correction.
  • the carrier as is usual, at its ends is firmly connected to the bearing block, it is recommended yourself that the bearing block is articulated with the swivel lever is connected and carries the guide element.
  • the bearing block is firmly connected to the pivot lever is that the carrier in the bearing block by at least one limited angle is rotatable and that a the guide element supporting correction lever with the support firmly connected is. Accordingly, the angular position of the Carrier responsible for the direction of action of the deflection adjustment device is responsible from the correction lever changed directly.
  • the guideway advantageously has a two-sided limitation is formed as a groove or slot. This results in safe guidance.
  • the guideway is formed by a contact surface against which Guide element is held by pressure means. This leads to a play-free adjustment.
  • This preferably forms the pressure means are that the forces of the loading device are outside the center plane of the lower roller on the bearing blocks attack. A small lateral offset of the load forces leads to a secure installation of the guide element on the guideway.
  • the lower part of a roll stack 1 is the lower part of a roll stack 1 illustrated.
  • a lower roller 2 and is shown a part of the next middle roll 3.
  • the lower roll 2 is designed as a deflection adjustment roller; it therefore has a jacket 4, which has an indicated Deflection adjustment device 5 on one Support 6 is supported. This is firmly in a bearing block 7 clamped and therefore secured against rotation.
  • the bearing block 7 is one by the piston 8 Loading device 9 resilient from below, so that the Rolling the roll stack 1 by lifting the bearing block 7 moved together and then loaded accordingly can be.
  • the deflection adjustment device 5 is only schematically illustrated. It exists in the present Embodiment from a series of support elements 10, which is arranged radially displaceably on the carrier 6 are, which determines the direction of action, the coincide with the center plane E of the roll stack should. But there are other types of deflection adjustment into consideration, for example a roller with pressure spaces between the carrier and the jacket, which are delimited by longitudinal and transverse seals.
  • a pivot lever 11 is fixedly attached to the stand 12 Swivel axis 13 swivel. It carries on the other End of the bearing block 7 by means of a joint 14.
  • a correction device 15 is a straight on the stand 12
  • Guideway 16 is provided, the middle plane E of the roll stack 1 has a slight inclination.
  • a guide element 17 in the Slidable form of a roller on the bearing block 7th is arranged.
  • a secure pressure of the roller 17 on the guideway 16 is effected in that the Load force F2 by the distance e from the central plane E of the roll stack 1, in which the reaction force F1 rules, is offset.
  • the resulting Torque presses the guide element 17 against the guideway 16.
  • FIG. 3 are for corresponding Parts with reference numbers increased by 200 compared to FIG. 1 used.
  • the main differences are:
  • the bearing block 207 is fixedly attached to the pivot lever 211.
  • the end of the carrier 206 is twist tested with one Correction lever 218 connected to the other end the guide member 217 in the form of a roller wearing. This engages in a slot-shaped guideway 216 a.
  • a pivoting of the pivot lever 211 is shifted downward also the guide element 217 down.
  • the carrier 206 is countered pivoted clockwise so that in the overlay the deflection adjuster 205 their Direction of action in the center plane E of the roll stack maintains.
  • the angle between the guideway and the median plane of the roll stack 2 depends on the local Circumstances. In particular, small wraps come from about 10 or 15 °, in some cases also larger angles from 20 to 30 °.

Landscapes

  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
EP99112385A 1998-07-17 1999-06-29 Calandre Expired - Lifetime EP0972881B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832214 1998-07-17
DE19832214A DE19832214C1 (de) 1998-07-17 1998-07-17 Kalander

Publications (3)

Publication Number Publication Date
EP0972881A2 true EP0972881A2 (fr) 2000-01-19
EP0972881A3 EP0972881A3 (fr) 2000-06-07
EP0972881B1 EP0972881B1 (fr) 2003-09-24

Family

ID=7874431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112385A Expired - Lifetime EP0972881B1 (fr) 1998-07-17 1999-06-29 Calandre

Country Status (3)

Country Link
US (1) US6145127A (fr)
EP (1) EP0972881B1 (fr)
DE (2) DE19832214C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10041651A1 (de) * 2000-08-24 2002-03-14 Voith Paper Patent Gmbh Kalander

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016819A (en) * 1960-02-25 1962-01-16 Mckiernan Terry Corp Super calender with constant nip alignment
FI63796C (fi) * 1979-12-17 1983-08-10 Waertsilae Oy Ab Anordning vid valspress
US4510859A (en) * 1984-01-23 1985-04-16 Beloit Corporation Supercalender NIP relieving arrangement
DE3711334A1 (de) * 1987-04-03 1988-10-13 Escher Wyss Gmbh Vorrichtung zur fuehrung der walzen eines im wesentlichen vertikalen kalanders
DE8801758U1 (de) * 1987-08-28 1988-05-05 Sulzer-Escher Wyss AG, Zürich Druckwalze
DE3735438C1 (de) * 1987-10-20 1989-05-18 Kleinewefers Gmbh Verfahren zum Betrieb eines Kalanders und Kalander zur Durchfuehrung dieses Verfahrens
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
DE19633671C2 (de) * 1996-08-21 1999-03-11 Voith Sulzer Finishing Gmbh Kalander

Also Published As

Publication number Publication date
DE59907086D1 (de) 2003-10-30
EP0972881B1 (fr) 2003-09-24
US6145127A (en) 2000-11-14
EP0972881A3 (fr) 2000-06-07
DE19832214C1 (de) 1999-11-11

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