EP0745726A2 - Calandre pour le satinage ou semi-satinage du papier - Google Patents

Calandre pour le satinage ou semi-satinage du papier Download PDF

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Publication number
EP0745726A2
EP0745726A2 EP96108396A EP96108396A EP0745726A2 EP 0745726 A2 EP0745726 A2 EP 0745726A2 EP 96108396 A EP96108396 A EP 96108396A EP 96108396 A EP96108396 A EP 96108396A EP 0745726 A2 EP0745726 A2 EP 0745726A2
Authority
EP
European Patent Office
Prior art keywords
support
rollers
relief
calender according
roller
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.)
Ceased
Application number
EP96108396A
Other languages
German (de)
English (en)
Other versions
EP0745726A3 (fr
Inventor
Heiko Linder
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 Sulzer Finishing GmbH
Original Assignee
Voith Sulzer Finishing 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 Sulzer Finishing GmbH filed Critical Voith Sulzer Finishing GmbH
Publication of EP0745726A2 publication Critical patent/EP0745726A2/fr
Publication of EP0745726A3 publication Critical patent/EP0745726A3/fr
Ceased 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
    • D21G1/004—Regulating the pressure
    • 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

Definitions

  • the invention relates to a calender for full and light satinizing according to the preamble of claim 1.
  • rollers serve to give the rollers a defined distance from one another in the event of a roller separation, and are also used to support the support blocks of the top roller (s), which are to be rendered ineffective in the case of light satinization, at such a great height that there is a distance when the lifting device is in the working position this roller to the rollers underneath remains.
  • spacers are provided which, in the case of separate rollers, between the side window of an elastic roller and the end region of an adjacent hard roller or between the pistons of the lifting device and the associated support surfaces thereof Support blocks of the bottom roller can be inserted.
  • lever calenders are known (DE 43 14 670 A1) in which the bearing blocks of at least the middle rollers are known so that at least some of the rollers are not loaded by uncontrolled frictional forces and to compensate for edge loads due to overhanging weights are carried by levers which are mounted on the associated support block and are pivotable between an upper stop and a lower stop. With them, the support blocks are supported on the support elements of the hanging spindles during normal operation. In order to relieve the support elements for the purpose of adjustment, positioning devices are provided between the support element and the bearing block, which can assume a working position and a relief position of lower height. A light satin is not possible with these calenders.
  • the invention is based on the object of specifying a calender suitable for full and light satinizing, in which uncontrolled frictional forces play a significantly smaller role.
  • the lifting device ensures an overstroke by which the rollers are pushed together and lifted beyond the working position. The size of the overstroke relieves the load on the support elements and also allows selected support elements to be raised to such an extent that during subsequent operation one or more of the uppermost rollers are at a distance from those below Rolls are held as required for the light satin.
  • the overstroke consists of two sections that can each be driven through, namely a relief stroke and an additional stroke, one can get by with a comparatively slight lifting of the rollers whenever only a relief of the support elements is desired.
  • the calender has a particularly simple construction, because all adjustment and loading functions are carried out by the lifting device.
  • the working position results when the support block of the top roller lies against the abutment. If the abutment is adjusted upwards, the lifting device can be raised into the relief position and into the overstroke position.
  • first and second stops serve to determine the relief position and the overstroke position.
  • the desired positions of the support elements can be achieved by rotating the hanging spindles and optionally blocking the support nuts in very short times. Due to the increased height of the support nuts, the on the support block mounted blocking devices to be effective during the entire overstroke.
  • the calender illustrated in the drawings has a schematically indicated stand 1 with a vertically running guide 2.
  • a support block 3 for a bottom roller 4, support blocks 5, 6 and 7 for middle rollers 8, 9 and 10 and a support block 11 for the top roller 12 can be displaced along this guide. While the bottom roller 4 and the top roller 12 are mounted directly in the associated support blocks 3 and 11, respectively are, the bearing blocks 13 of the middle rollers 8 to 10 are carried by levers 14 which are mounted on pivoting joints 44 on the associated support blocks 5, 6 and 7.
  • the swivel path x o upwards is limited by a stop 15 on the support block, the swivel path x u downwards by a stop 16 on the support block.
  • a relief device 17 formed by hydraulic cylinders for compensating edge forces is also arranged between the lever and the support block.
  • Threaded hanging spindles 27 are rotatable by a motor 28 via gears 29 and 30. They are held in a holder 31 which is fixed to the stand and is designed as a nut and therefore change their height when rotating.
  • Support elements 32 in the form of support nuts are assigned to the support blocks 5, 6, 7 and 11. They can be secured against rotation by a blocking device 33 held by the support block, which can engage with a bolt 34 in an external toothing of the support elements 32, which leads to a relative adjustment of the support element 32 with respect to the hanging spindle 27.
  • the height Hm of the support element 32 is at least equal to the additional stroke Hz, plus the height of the latch 34 and the depositing stroke E2 or E3, in order to make it possible to adjust the support elements 32 sufficiently for light satinization.
  • a position sensor 35 responds when the abutment 18 has reached a certain distance E1 from the support block 11.
  • Position sensors 36 on the blocking devices 33 respond when the support elements 32 have reached a predetermined height relative to the support blocks.
  • Sensors 37 determine whether the blocking device 33 is effective or ineffective.
  • Five position sensors 38, 39, 40, 41 and 42 interact with the gearwheel 30 of the hanging spindle 27 and report when the latter has reached certain height positions with respect to the stand 1.
  • a measuring device 43 shows the height of the lower roller 4 relative to the stand 1.
  • the position sensors are, for example, inductive proximity switches which emit a signal when they are covered by a metallic object (for example a support element 32).
  • the relief stroke Hb results from the defined lever path x o of the bearing blocks 13 of the center rollers and the adjustment gap E3 between the support elements 32 and the support blocks 5, 6 and 7.
  • the additional stroke Hz results from the defined lever path x u of the center roller 8, which is above the drive roller lies, the relief stroke Hb and a roller gap Sm.
  • the separation stroke Ha was 180 mm
  • the relief stroke Hb was 18 mm
  • the additional stroke Hz was 60 mm.
  • the abutment 18 has a predetermined height which is dependent on the diameters of the rollers. By loading the lifting piston 24 from below, the rollers are moved against each other and can be loaded with an additional force that exceeds the roller weight.
  • the support elements 32 which have to be adjusted due to a change in the roll diameter, are relieved. 3 that the reciprocating piston 24th is moved into the relief position after the abutment 18 has been raised by the motor 20 by a sufficient amount.
  • the lifting piston 24 moves upwards, the rollers are moved together again, the levers 14 resting against the upper stop 15 of the associated support blocks 5, 6 and 7. Therefore, these support blocks as well as the support block 11 of the top roller 12 are lifted off the associated support elements 32.
  • the support elements 32 can now be brought into the desired new altitude with the aid of the hanging spindle 27 and the blocking device 33.
  • the hanging spindle 27 can be adjusted from its neutral position determined by the position sensor 40 to the lower positions determined by the position sensors 41 and 42, with some of the support elements 32 being changed in their relative height to the hanging spindle 27 by blocking.
  • the roller change itself takes place when the rollers are in the lowered position in FIG. 2.
  • the final setting is carried out so that the pressure spindles 19 are moved to the support block 11 for the top roller 12 after a roller change to an adjustment gap E1, all middle rollers and the top roller with their support blocks being deposited on the support elements 32 (FIG. 2).
  • the setting gap E1 corresponds to the gap E2 that results in normal operation between the support block 11 and the uppermost support element 32.
  • To set the setting gap E3 the relief position of FIG. 3 is approached.
  • the bolts 34 of the blocking devices 33 engage approximately at the same height in the external toothing of the support elements 32. If, however, they have been brought to the large distance of FIG. 4 and are then to be adjusted, the procedure is for the intervention the bolt 34 in the external toothing the greater height Hm of the support elements 32 substantially.
  • the construction shown can be varied in many ways without departing from the basic idea of the invention. So you can do without a stop for the relief position if you accept that the overtravel position of FIG. 4 is approached for a normal roll change.
  • the hanging spindle 27 can also have another known construction, for example be in several parts or have motor-adjustable support nuts. Instead of screwing, the height can also be adjusted by inserting spacers.
  • the stop 16 can also be formed by the end position of the piston of the relief device 17.

Landscapes

  • Treatment Of Fiber Materials (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Paper (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP96108396A 1995-06-01 1996-05-28 Calandre pour le satinage ou semi-satinage du papier Ceased EP0745726A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520109 1995-06-01
DE19520109A DE19520109C1 (de) 1995-06-01 1995-06-01 Kalander für die Voll- und Leichtsatinage

Publications (2)

Publication Number Publication Date
EP0745726A2 true EP0745726A2 (fr) 1996-12-04
EP0745726A3 EP0745726A3 (fr) 1998-05-13

Family

ID=7763413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108396A Ceased EP0745726A3 (fr) 1995-06-01 1996-05-28 Calandre pour le satinage ou semi-satinage du papier

Country Status (3)

Country Link
US (1) US5673617A (fr)
EP (1) EP0745726A3 (fr)
DE (1) DE19520109C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19729531C2 (de) 1997-07-10 2002-12-12 Voith Paper Patent Gmbh Papierkalander
DE19820087B4 (de) * 1998-05-06 2005-06-23 Eduard Küsters Maschinenfabrik GmbH & Co. KG Kalander für die Behandlung einer Warenbahn
FI5264U1 (fi) * 2001-11-06 2002-02-28 Metso Paper Inc Järjestely telanipin sulkemiseksi ja avaamiseksi kenkäkalanterissa
FI118857B (fi) * 2003-01-02 2008-04-15 Metso Paper Inc Menetelmä kuiturainan kalanteroimiseksi ja kalanteri
EP2634307B1 (fr) * 2012-03-02 2016-05-11 Valmet Technologies, Inc. Procédé pour la modernisation d'une supercalandre et une supercalandre modernisée

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314670A1 (de) * 1993-05-04 1994-11-10 Kleinewefers Gmbh Kalander

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369483A (en) * 1965-04-14 1968-02-20 Kleinewefers Soehne J Adjusting device for fast venting and roller fine adjustment, especially for paper satining calenders
DE2316745C3 (de) * 1973-04-04 1981-05-27 Kleinewefers Gmbh, 4150 Krefeld Vorrichtung zum Einstellen des Walzenspaltes übereinander angeordneter Walzen eines Kalanders
DE2415836C3 (de) * 1974-04-02 1982-06-16 Kleinewefers Gmbh, 4150 Krefeld Vorrichtung zur Festlegung der Walzenspalte beim Trennen der Walzen eines Kalanders
DE3012852C2 (de) * 1980-04-02 1983-07-28 Kleinewefers Gmbh, 4150 Krefeld Superkalander
DE3702245C3 (de) * 1987-01-27 1993-12-23 Kleinewefers Gmbh Kalander
DE3711334A1 (de) * 1987-04-03 1988-10-13 Escher Wyss Gmbh Vorrichtung zur fuehrung der walzen eines im wesentlichen vertikalen kalanders
DE3713561A1 (de) * 1987-04-23 1988-11-10 Escher Wyss Gmbh Kalander mit niprelieving
FI83346C (fi) * 1989-01-27 1991-06-25 Valmet Paper Machinery Inc Kalander, saerskilt en superkalander.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314670A1 (de) * 1993-05-04 1994-11-10 Kleinewefers Gmbh Kalander

Also Published As

Publication number Publication date
EP0745726A3 (fr) 1998-05-13
US5673617A (en) 1997-10-07
DE19520109C1 (de) 1996-06-13

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