EP1081281B1 - Calandre - Google Patents

Calandre Download PDF

Info

Publication number
EP1081281B1
EP1081281B1 EP00117595A EP00117595A EP1081281B1 EP 1081281 B1 EP1081281 B1 EP 1081281B1 EP 00117595 A EP00117595 A EP 00117595A EP 00117595 A EP00117595 A EP 00117595A EP 1081281 B1 EP1081281 B1 EP 1081281B1
Authority
EP
European Patent Office
Prior art keywords
roll
stack
roller
rollers
web
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.)
Expired - Lifetime
Application number
EP00117595A
Other languages
German (de)
English (en)
Other versions
EP1081281A2 (fr
EP1081281A3 (fr
Inventor
Peter Dr. Svenka
Bernd Krebs
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.)
Eduard Kuesters Maschinenfabrik GmbH and Co KG
Original Assignee
Eduard Kuesters Maschinenfabrik GmbH and Co KG
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 Eduard Kuesters Maschinenfabrik GmbH and Co KG filed Critical Eduard Kuesters Maschinenfabrik GmbH and Co KG
Publication of EP1081281A2 publication Critical patent/EP1081281A2/fr
Publication of EP1081281A3 publication Critical patent/EP1081281A3/fr
Application granted granted Critical
Publication of EP1081281B1 publication Critical patent/EP1081281B1/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

Definitions

  • the invention relates to a calender for the two-sided treatment of a web, in particular a paper web, according to the preamble of claim 1.
  • Such a calender as is known from EP 0 732 446 B1, is used for final treatment of a paper web so that it has a desired value of smoothness, gloss, thickness, bulk and the like.
  • the use of hard and soft rollers allow the formation of soft nips, the one cause much more uniform compaction than from two hard rollers formed hard nips.
  • the short downtimes of the soft ones are disadvantageous Rolls due to rapid wear, reducing the maintenance effort and the associated downtimes of the known calenders are high.
  • the object of the invention is therefore to provide a calender according to the preamble of Claim 1 to create, which provides very good smoothing results and cheaper in the purchase and in operation.
  • Vibrations of the roller system and the roller frame resulting from the Interplay of physical and technological properties of the web and the roll stack result from the different diameter selection the rolls and the roll type avoided in the roll stack.
  • the Difference in diameter of the rolls in the stack is determined by a targeted and optimized choice of roller arrangement achieved. Vibration-free operation of the Calenders increases the calendering speed and thereby the Productivity possible.
  • the decoupling of the roll stacks for processing can each be one Web side used in full to set the smoothing parameters become.
  • the roller diameters of the intermediate rollers are preferably smaller than that Roll diameter of the outer rolls, since the resulting smaller one Working gap leads to higher compressive stresses in the nip. This can be allowed here because all the surface quality and unfavorable stress the elastic roller covers of the intermediate rollers eliminates damaging forces be, and then also the application of the regulation of the drives of the rollers in nippower management sustainably supports the positive result.
  • the small number of rollers and the arrangement of the rollers in the roller stack can continue to be used to optimize the web guidance, since at Using two separate roll stacks, these can be adjusted in height can be arranged side by side that the path length of the web in an alternating gap is shortened compared to known two-stack designs, thereby avoiding undesirable changes in the web.
  • calender 1 for the two-sided treatment of a web, especially a paper or textile web
  • the roller arrangement of two roller stacks 2, 3 each of four rollers 4, 5, 6, 7 and 8, 9, 10, 11 comprises the are arranged one above the other.
  • Working gaps are formed between the rolls 4, 5, 6, 7 of the roll stack 2, which are designed as soft nips, since they are each between a hard roller 4, 6 and a soft roller 5, 7 are formed.
  • the working column runs through a web 12 in a pass direction D.
  • a second roll stack 3 is used to smooth a second side of the web 12 provided the same rollers 8, 9, 10, 11 of the first stack 2 in reverse Order in relation to the direction of travel of the web, i.e. the upper outer roll 4 is in the second roll stack 3 as the lower outer roll 11 arranged, while the lower outer roller 7 of the first stack 2 as the upper Outer roller 8 of the second roller stack 3 is arranged.
  • the intermediate rolls 9, 10 of the second roll stack 3 are identical to the intermediate rolls 5, 6 of the first roll stack 2 and have only swapped their positions.
  • the web 12 passes through the second Roll stack 3 from top to bottom.
  • the led in the second roll stack 3 Material web is there in the first working gap between the rollers 8, 9, 10, 11 each smoothed on its second side, since this contacts the hard rollers 9, 11.
  • the rolls 8, 9, 10, 11 of be charged at least one end.
  • a further hydraulic cylinder 14 is provided, which is also for loading the second roll stack 3 can be used.
  • the two roll stacks 2, 3 are such vertically offset next to each other that the bottom nip of the first Roll stack 2 to the uppermost nip of the second roll stack 3 essentially is adjacent in order to transfer the web 12 as short and as straight as possible from the first roll stack 2 into the second roll stack 3.
  • the two roll stacks 2, 3 are preferably offset from one another in such a height-offset manner arranged that only the top nip of the second roll stack 3 is higher than that lowest nip of the first roll stack 2. This ensures that under Maintaining a sufficient tension of the web as straight as possible and therefore also the shortest guidance of the material web in the alternating gap is reached between the first roll stack 2 and the second roll stack 3.
  • the upper roller 4, 8 and / or the lower roller 7, 11 are preferably as bend-controllable rollers. All hard rollers and if necessary soft rollers can be heated or heated.
  • the two roll stacks 2, 3 can be interchanged.
  • the second Roll stack 3 according to the described embodiment then forms one first roll stack, in which the upper outer roll is a soft roll, so that First the second side, which contacts the hard intermediate roller, is smoothed out for example, is formed by the underside of a paper web.
  • the first Roll stack 2 forms a second roll stack, in which the upper Outer roller 4 is a hard roller, so the first side is the hard one Intermediate roller is contacted, smoothed, for example, from the top of a Paper web is formed.
  • the two roll stacks 2, 3 one above the other in one common stack with separate line load characteristics can be arranged.
  • rollers 4, 5, 6, 7 or the rollers 8, 9, 10, 11 of the two Roll stack 2, 3 not only vertically one above the other, but also inclined be arranged one above the other.

Landscapes

  • Paper (AREA)
  • Lubricants (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Claims (7)

  1. Calandre pour le traitement sur les deux faces d'une bande de matière, en particulier d'une bande de papier, avec un agencement de rouleaux comprenant deux piles de rouleaux avec 4 rouleaux chacune, qui présente des rouleaux durs et mous ainsi que des espaces fonctionnels formés respectivement entre un rouleau dur et un rouleau mou, qui fait passer la bande de matière dans une direction d'avance, caractérisée en ce que l'une des piles de rouleaux (2) présente respectivement un rouleau extérieur dur (4) et un rouleau intermédiaire dur (6) ainsi qu'un rouleau extérieur mou (7) et un rouleau intermédiaire mou (5), qui ont des diamètres de rouleaux différents les uns des autres, et l'autre pile de rouleaux (3) présente les mêmes rouleaux (8, 9, 10, 11) que la première pile de rouleaux (2) dans l'ordre inversé par rapport à la direction d'avance (D) de la bande de matière (12).
  2. Calandre selon la revendication 1, caractérisée en ce que le diamètre des rouleaux intermédiaires (5, 6 ; 9, 10) est inférieur au diamètre des rouleaux extérieurs (4, 7 ; 8, 11).
  3. Calandre selon la revendication 1 ou 2, caractérisée en ce que le diamètre des rouleaux extérieurs mous (7 ; 8) est supérieur au diamètre des rouleaux extérieurs durs (4 ; 11).
  4. Calandre selon l'une des revendications 1 à 3, caractérisée en ce que les deux piles de rouleaux (2, 3) sont formées par deux piles de rouleaux réalisées individuellement.
  5. Calandre selon la revendication 4, caractérisée en ce que les deux piles de rouleaux (2, 3) sont disposées l'une à côté de l'autre en étant décalées en hauteur, de telle sorte que seule la zone de pincement la plus haute de la deuxième pile de rouleaux (3) est plus haute que la zone de pincement la plus basse de la première pile de rouleaux (2).
  6. Calandre selon l'une des revendications 1 à 3, caractérisée en ce que les deux piles de rouleaux (2, 3) sont disposées dans une pile commune avec des courbes caractéristiques de charge linéaire distinctes.
  7. Calandre selon l'une des revendications 1 à 6, caractérisée en ce que les deux piles de rouleaux (2, 3) présentent une introduction de bande depuis le haut.
EP00117595A 1999-08-27 2000-08-16 Calandre Expired - Lifetime EP1081281B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19940897 1999-08-27
DE19940897A DE19940897C1 (de) 1999-08-27 1999-08-27 Kalander

Publications (3)

Publication Number Publication Date
EP1081281A2 EP1081281A2 (fr) 2001-03-07
EP1081281A3 EP1081281A3 (fr) 2001-07-18
EP1081281B1 true EP1081281B1 (fr) 2004-07-14

Family

ID=7919932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117595A Expired - Lifetime EP1081281B1 (fr) 1999-08-27 2000-08-16 Calandre

Country Status (3)

Country Link
EP (1) EP1081281B1 (fr)
AT (1) ATE271156T1 (fr)
DE (3) DE19940897C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102660888B (zh) * 2012-05-22 2015-08-19 大连明珠机械有限公司 一种压光机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19508353A1 (de) * 1995-03-09 1996-09-12 Voith Sulzer Finishing Gmbh Kalander für die zweiseitige Behandlung einer Papierbahn
DE29504034U1 (de) * 1995-03-09 1995-05-04 Voith Sulzer Finishing Gmbh Kalander für die zweiseitige Behandlung einer Papierbahn

Also Published As

Publication number Publication date
DE19940897C1 (de) 2000-11-09
EP1081281A2 (fr) 2001-03-07
ATE271156T1 (de) 2004-07-15
DE29915955U1 (de) 2001-01-11
EP1081281A3 (fr) 2001-07-18
DE50007046D1 (de) 2004-08-19

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