EP1026317B1 - Calandre - Google Patents

Calandre Download PDF

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Publication number
EP1026317B1
EP1026317B1 EP00100897A EP00100897A EP1026317B1 EP 1026317 B1 EP1026317 B1 EP 1026317B1 EP 00100897 A EP00100897 A EP 00100897A EP 00100897 A EP00100897 A EP 00100897A EP 1026317 B1 EP1026317 B1 EP 1026317B1
Authority
EP
European Patent Office
Prior art keywords
web
calender according
roll stack
calender
paper 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
EP00100897A
Other languages
German (de)
English (en)
Other versions
EP1026317A2 (fr
EP1026317A3 (fr
Inventor
Michael Gwosdz-Kaupmann
Reinhard Wenzel
Thomas Hermsen
Franz Kayser
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
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 filed Critical Voith Paper Patent GmbH
Publication of EP1026317A2 publication Critical patent/EP1026317A2/fr
Publication of EP1026317A3 publication Critical patent/EP1026317A3/fr
Application granted granted Critical
Publication of EP1026317B1 publication Critical patent/EP1026317B1/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
    • D21G1/0073—Accessories for calenders
    • D21G1/0086—Web feeding or guiding devices

Definitions

  • the invention relates to a calender with a roll stack, which has several rollers between them Form nips for the treatment of a material web, and with an insertion aid to guide the start of a material web through the roll stack.
  • Such a calender is known from EP 0 232 689 A2.
  • the invention is based on a paper web described as an example of the material web. she is but also analogously for other material webs that are in a calender must be treated, applicable.
  • rollers plays for the present one Invention doesn't matter. Both "hard” alternate with “soft” rollers and so-called “soft” Form nips or nips.
  • the calender can also have only or predominantly hard rollers.
  • EP 0 232 689 A2 therefore shows the possibility of introduction to automate the paper web. This is between two nips, i.e. on one roller each, a web guiding device arranged a Guide surface and additionally has a blowing device. The path hitting the guide surface becomes then with the help of the blowing device along the guide surface pushed in the desired direction.
  • a calender constructed in this way can in some ways operated automatically. Is also the danger that there are personal injury accidents when threading comes, much less. The effort and therefore however, the costs for the web guiding device are very high. To make matters worse, the accessibility of the calender drastically during operation is restricted. If there is a web break comes, which can not reliably avoid in practice leaves, then the web guiding device can be dangerous Paper jams and the resulting damage lead on rollers and other equipment. The view of the running paper web is blocked and the roller change is difficult.
  • the invention is based, in operation To reduce the possibility of malfunctions using the insertion aid.
  • This task is performed on a calender of the type mentioned at the beginning Art solved in that at least one On the side of the roll stack, a web guiding device movable along the roll stack is arranged in at least one Insertion position can be determined.
  • side is not meant the face, but the front or back of the roll stack, at which the material web must be deflected in order to desired next nip to be led.
  • the web guiding device stands for threading the At the beginning of the material web in the calender available. Here, however, one comes with a far lower one Construction work out because the web guiding device from be moved from one insertion position to the next can. So if the tip of the material web into one The web guiding device has been introduced at this position their duty is done and is no longer necessary there. In the time the paper web on the other side of the roll stack, to be redirected and led into the next nip, the web guiding device can move to this nip or moved to the top of the web to receive there and in turn to the desired one to transport the next nip.
  • the web guiding device is preferably in one Park position definable, in which no nip through the Web guiding device is covered. In operation can then the web of material can be observed just like on a calender that has been threaded by hand is. The monitoring options are thus complete significantly improved. The possibility of interference becomes reduced even further.
  • Driving platforms are anyway present in many calenders. They are used for maintenance purposes used, for example, for storage of to replace or fix the rollers to be replaced.
  • Position switches are preferably along the movement path provided, each of which is an insertion position is assigned and that with a drive control are connected. This allows the movement sequence the web guiding device automatically or at least can be controlled semi-automatically.
  • the web guiding device is moved to the positions where they receive the tip of the material web and / or can pass on to the next desired nip.
  • the Position is determined by the position switch. If the web guiding device in the next Position is moved, it also actuates the Position switch and thus reports that it has been reached Drive control. In the drive control you can however, provide that the web guiding device does not have to stop in every position, for example then when some nips when treating the Paper web to be skipped.
  • the web guide device advantageously has a guide surface arrangement on.
  • the top of the paper web meets the guide surface arrangement and is from this is directed in the desired direction.
  • the design effort is relatively low.
  • the guide surface arrangement preferably has a changeable form. One can use the guide surface arrangement then use it as a "switch". This makes it possible to either put the paper web straight in to lead the next nip of the roll stack, or some Skip nips and run the paper web in parallel to the roll stack if this is for treatment the paper web is desired.
  • the guide surface arrangement one essentially parallel to the direction of movement level surface and a movable out of the surface just formed Has deflection surface. As long as the deflection surface is not protrudes over the surface just formed, the Paper web essentially parallel to the roll stack can skip some nips. However, will the deflection surface from the surface just formed moved out, then the paper web is redirected, to be introduced to the next nip.
  • the deflection surface is arranged on swivel levers. The deflecting surface is thus folded out, so to speak.
  • the deflecting surface on a cross to the direction of movement slidable sliding piece is arranged. Both Designs can of course also be combined, if this is for constructive reasons or out Space makes sense. While in the first case one Change of the guide surface geometry by a Swiveling movement of the swivel lever is caused. The Geometry in the second case by a linear movement changed.
  • the guide surface arrangement preferably has at least a tongue that can be moved up to the roller stack is. This allows the paper web up to the proximity of the nip, in many cases even up to the immediate lead in front of the nip. It is only necessary to that the paper web is supported until them toward an area of the lower roll of the nip lies, in which a further advance of the paper web not due to a too steep roller section is hindered or disturbed.
  • the web guide device has at least a gripper head in a first movement section perpendicular to the roll stack away from it, in a second movement section parallel to the roll stack and perpendicular in a third movement section to the roller stack is movable on this.
  • these three movements do not necessarily have to run completely separate from each other.
  • the Gripper head can the paper web that is fed through the nip will grab, pull out of the roll stack, to the next desired nip and pull it thread there again. This leads to forced operation, which is particularly advantageous for thinner papers is because their rigidity in some cases not enough to get them through the individual nips slide.
  • the gripper head preferably has a suction and / or a blowing device.
  • the gripper head does not have to passed through a nip to the paper web threading. Rather, it can stay in front of the nip, to suck up the paper web there. If the gripper head the paper web is ready before the next nip holds, then he can let go and with the help of Blow air through the nip.
  • the gripper head is preferably 180 ° about an axis rotatable, which runs parallel to the axes of the rollers. This takes into account the fact that the beginning of the paper web in the same way the direction must change to the next desired nip to be introduced.
  • the gripper head attacks laterally on the material web. Then that leads Do not twist the gripper head to bend the Paper web at its top. The paper web is rather passed relatively smoothly through the nips.
  • the stack of rollers is preferably inclined. Just with inclined roller stacks, the problem is Threading the paper web is particularly serious. While in many cases, the paper web is still handed in from below can without putting the operator at greater risk exists, this is no longer from above easily possible.
  • calender 1 shows a calender 1 with a stack 2 Rolls 3, 4, each between nips 5 or roller division form.
  • the axes of the rollers 3, 4 lie here all in one level 6.
  • This level 6 is here Embodiment compared to the vertical direction inclined.
  • the stool is accordingly 7 of the calender inclined. Your edge runs essentially parallel to level 6.
  • a paper web 8 is guided through the roll stack 2, i.e. the paper web 8 passes through in the illustration 1 all nips 5 of the calender 1. Between individual Nips are deflection rollers or guide rollers 9, 10 provided on which the paper web 8 is deflected by approximately 180 ° becomes. In the calender 1, the paper web 8 (or a corresponding one other material web) with pressure and if necessary also acted on with elevated temperature. The details necessary for controlling these influencing variables are partially shown, but are in not explained further below.
  • nips where treatment is desired.
  • Web guide device 11 To guide the paper web 8 through the nips is one Web guide device 11 is provided.
  • This web guiding device 11 is arranged on a driving platform 12, which is displaceable along a route 13.
  • a driving platform 12 is in many calenders anyway available to an operator 14 the opportunity to give maintenance work, for example Rollers 3, 4 to clean or prepare to change the rollers.
  • the driving platform 12 is on its route 13 in certain Position definable. With that, at the same time a positioning option for the web guiding device 11 created.
  • level 6 of the roll stack 2 can be a corresponding driving platform with a corresponding web guide device provided his. For reasons of clarity, however, this is not shown. On this "underside” of the calender 1 in many cases it is sufficient if only one Driving platform provided without web guiding device is.
  • the web guiding device 11 has in the embodiment 1 a guide surface arrangement on.
  • the guide surface arrangement initially has curved ones Guide surfaces 15, 16 on the pivot levers 17, 18 are arranged.
  • the pivot levers 17, 18 can be done with the help of hydraulic or pneumatic Cylinders 19, 20 are pivoted.
  • the pivot levers 17, 18 can, as in the lower position of the driving platform 12 is shown, retracted into the flat surface 21 or how in the upper position of the driving platform 12, from the level Surface 21 can be pivoted out.
  • Both the linear guide 22 and the pivot levers 17, 18 are on one common carrier 23 attached using a further cylinders 24 opposite the driving platform 12 can be raised. Comes in the raised state the entire guide surface arrangement from the chair 7 of the calender free, so that the driving platform 12 without the possibility of interference can be moved.
  • the pivot lever 18 can then be pivoted in again be to the top of the paper web 8 to the to lead the desired nip. It is also possible that Tip of the paper web already with the top of the catch surface 21, if only two Nips are to be skipped and the driving platform 12 already been placed in the correct position is.
  • Fig. 2 shows a modified embodiment in which same and corresponding parts with the same Reference numerals are provided.
  • the curved surfaces 15, 16 no longer on swivel levers arranged, but on sliding pieces 28, 29, the extended with solid lines and retracted are shown in dashed lines.
  • another curved surface 30 is provided on a sliding piece 31 cylinders 19, 20, 32 are provided for actuation, which the sliding pieces 28, 29, 31 compared to the Move carrier 23 perpendicular to level 6.
  • the withdrawn Condition shown in dashed lines
  • the incoming paper web only the just trained one Surface 21 on the linear guide 22 opposite.
  • the entire guide surface arrangement can, as in the design 1 also with the help of the cylinder engine 24 are moved relative to the driving platform 12.
  • Tongue 44 may be present. This can be used for insertion the paper web until it touches the corresponding one Roller be advanced so that the tip of the Paper web on a continuous guide surface up can be advanced to the nip.
  • the flat surface 21 and the curved surfaces 15, 16, 30 can interlock like teeth, i.e. the surfaces are not continuous, but through slots parallel to the direction of web travel interrupted, the partial areas of a surface each arranged in the slots of the other surfaces are.
  • the web guiding device Supply two nips and start the paper web 8 from an intermediate one Receive nip. This further saves time when threading the paper web 8 in the calender 1.
  • 3 shows a further embodiment of a web guiding device, at the same and corresponding to each other Parts have the same reference numerals are.
  • Position switches on the route 32 arranged by an actuating device 33 are operated when the driving platform 12 the corresponding Position switch 32 reached. One not closer The drive control shown can then be the driving platform 12 shut down.
  • Each pair of nipples is a position switch 32 assigned.
  • Another position switch 34 is not assigned to a pair of nipples, but indicates a parking position in which the web guiding device no longer blocks the view of the nips 5.
  • a gripping head 35 with a funnel-shaped opening 36 is located at the front end of a push rod 37, those with only schematically shown guide means 38 is attached to the driving platform 12.
  • guide means 38 is attached to the driving platform 12.
  • another suction and blowing device, not shown be arranged on the gripper head 35. How it works this web guide can be like describe as follows.
  • the gripper head 35 is in the position A advanced so that it is opposite the nip 25. A beginning of the paper web that is characterized by the Nip 25 is sucked in and as soon as it reaches position B reached, clamped.
  • the gripper head 35 will then retracted with the guide rod 37 (arrow C).
  • the driving platform 12 is parallel to level 6 driven down (arrow D).
  • the guide rod 37 is located then in the position shown in dashed lines.
  • bracket 38 it is also possible to mount the bracket 38 on the driving platform 12 to reach this position.
  • the gripper head 35 rotated by 180 ° and by one Axis 45, which runs parallel to the roller axes.
  • the tip of the paper web is then back on the roll stack 2 directed.
  • the guide rod 37 with the gripper head 35 in the direction of the arrow F advanced until the tip of the next nip 27 is adjacent.
  • the gripper is unlocked and the paper web blown through the nip 27.
  • the gripper expediently grasps the Side to the top of the paper web. In this case you can always point this tip in the right direction judge.
  • the gripper head 35 is on the piston rod 39 of a hydraulic or pneumatic cylinder 40 attached.
  • the Cylinder 40 can on the platform 12 in the direction of Arrow 41 are moved up and down to the in Fig. 4th positions shown behind and in front of the nip.
  • the gripper head can be moved through the cylinder 40 in Direction of the double arrow 42 are moved.
  • Fig. 5 shows the gripper head 35 at the front end of the Piston rod 39, as the tip of the paper web 8 from reaches from the side. Now if the gripper head 35, like this is indicated by arrow 43, rotated by 180 ° then the tip of the paper web 8 can be moved around the corresponding one Guide roller 9, 10 are guided around.
  • Fig. 6 shows the gripper head from the side. Not recognizable are just the suction and blowing devices.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (15)

  1. Calandre avec une pile de rouleaux qui présente plusieurs rouleaux, lesquels forment entre eux des lignes de contact pour le traitement d'une bande de matériau, et avec un dispositif auxiliaire d'introduction pour le guidage d'un début de bande de matériau à travers la pile de rouleaux, caractérisée en ce que sur au moins un côté de la pile de rouleaux (2) est disposé un système de guidage de bande (11) mobile le long de la pile de rouleaux, qui peut être fixé dans au moins une position d'introduction.
  2. Calandre selon la revendication 1, caractérisée en ce que le système de guidage de bande (11) peut être fixé dans une position d'immobilisation (34) dans laquelle aucune ligne de contact (5, 25, 27) n'est couverte par le système de guidage de bande (11).
  3. Calandre selon la revendication 1 ou 2, caractérisée en ce que sur le côté de la pile de rouleaux (2) est disposée une plate-forme mobile (12) et le système de guidage de bande (11) est fixé sur la plate-forme mobile (12).
  4. Calandre selon l'une quelconque des revendications 1 à 3, caractérisée en ce qu'il est prévu le long de la trajectoire de déplacement (13) des interrupteurs de position (32, 34), dont chacun est attribué à une position d'introduction et qui sont reliés à une commande d'entraínement.
  5. Calandre selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le système de guidage de bande présente un dispositif de surface de guidage (15, 16, 21, 30).
  6. Calandre selon la revendication 5, caractérisée en ce que le dispositif de surface de guidage (15, 16, 21, 30) présente une forme variable.
  7. Calandre selon la revendication 6, caractérisée en ce que le dispositif de surface de guidage présente une surface (21) de conception plane et disposée sensiblement parallèlement au sens de déplacement et une surface de déviation (15, 16, 30) pouvant être sortie par le déplacement de la surface (21) de conception plane.
  8. Calandre selon la revendication 7, caractérisée en ce que la surface de déviation (15, 16) est disposée sur des leviers basculants (17, 18).
  9. Calandre selon la revendication 7 ou 8,
    caractérisée en ce que la surface de déviation (15, 16, 30) est disposée sur une pièce coulissante (28, 29, 31) pouvant coulisser transversalement au sens de déplacement.
  10. Calandre selon l'une quelconque des revendications 5 à 9, caractérisée en ce que le dispositif de surface de guidage présente au moins une lame (44) qui peut coulisser jusqu'à la pile de rouleaux (2).
  11. Calandre selon l'une quelconque des revendications 1 à 10, caractérisée en ce que le système de guidage de bande (11) présente au moins une tête à pince (35), qui peut être déplacée dans un premier tronçon de déplacement perpendiculairement à la pile de rouleaux (2) à partir de celle-ci, dans un deuxième tronçon de déplacement parallèlement à la pile de rouleaux (2) et dans une troisième section de déplacement perpendiculairement à la pile de rouleaux (2) et vers celle-ci.
  12. Calandre selon la revendication 11, caractérisée en ce que la tête à pince (35) présente un système d'aspiration et/ou un système de soufflage.
  13. Calandre selon la revendication 11 ou 12, caractérisée en ce que la tête à pince (35) peut tourner de 180° autour d'un axe (45), qui est agencé parallèlement aux axes des rouleaux (3, 4).
  14. Calandre selon la revendication 13, caractérisée en ce que la tête à pince (35) s'applique sur le côté de la bande de matériau (8).
  15. Calandre selon l'une quelconque des revendications 1 à 14, caractérisée en ce que la pile de rouleaux (2) est inclinée.
EP00100897A 1999-02-03 2000-01-18 Calandre Expired - Lifetime EP1026317B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904180A DE19904180C1 (de) 1999-02-03 1999-02-03 Kalander
DE19904180 1999-02-03

Publications (3)

Publication Number Publication Date
EP1026317A2 EP1026317A2 (fr) 2000-08-09
EP1026317A3 EP1026317A3 (fr) 2001-05-16
EP1026317B1 true EP1026317B1 (fr) 2003-10-01

Family

ID=7896200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100897A Expired - Lifetime EP1026317B1 (fr) 1999-02-03 2000-01-18 Calandre

Country Status (3)

Country Link
US (1) US6402889B1 (fr)
EP (1) EP1026317B1 (fr)
DE (2) DE19904180C1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10129102B4 (de) * 2001-06-16 2005-12-15 Voith Paper Patent Gmbh Kalander
FI111395B (fi) * 2001-10-30 2003-07-15 Metso Paper Inc Menetelmä välitelan vaihtamiseksi monitelaisessa telastossa
US20040191559A1 (en) * 2003-03-26 2004-09-30 Bustamante Anthony T. Method and apparatus for strengthening steel and cast iron parts
FI7064U1 (fi) * 2005-01-31 2006-05-12 Metso Paper Inc Laitteet katkenneen massaradan poistamiseksi sellukuivaimesta ja sellukuivaimen hoitotaso
ITFI20050056U1 (it) * 2005-07-14 2007-01-15 Focus S R L Pedana, in particolare per macchine bobinatrici macchina bobinatrice dotata di tale pedana
DE102006022029A1 (de) * 2006-05-10 2007-11-15 Voith Patent Gmbh Papier-oder Kartonmaschine
DE102007034838A1 (de) * 2007-07-26 2009-01-29 Voith Patent Gmbh Auftragsvorrichtung
DE202008011130U1 (de) 2008-08-21 2008-11-06 Metso Paper, Inc. Walzenwechselwerkzeug
DE102018103843A1 (de) 2018-02-21 2019-09-26 Voith Patent Gmbh Kalander

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE36474C (de) * R. SMITH in Sherbrooke, Prov. Quebec, Dominium Canada Einrichtung zum selbstthätigen Einführen der Papierbahn in die Satinirwalzen
US327031A (en) * 1885-09-29 smith
US2755711A (en) * 1950-11-02 1956-07-24 Robert Gair Co Inc Threader calender rollers
BE833964A (fr) * 1974-11-28 1976-01-16 Machoire de guidage de matiere pour l'intervalle des cylindres d'un laminoir ou d'une calandre
US3999696A (en) * 1975-05-27 1976-12-28 Crown Zellerbach Corporation Web threading system
US4763822A (en) * 1985-12-23 1988-08-16 Fibron Machine Corporation Paper tail nip threader
EP0345558B1 (fr) * 1988-06-06 1992-01-08 Maschinenfabrik Rieter Ag Procédé pour introduire un ruban de fibres entre les rouleaux de pression d'une machine d'enroulement de nappes de fibres textiles
DE3838746A1 (de) * 1988-11-15 1990-05-17 Escher Wyss Gmbh Kalander fuer die oberflaechenbehandlung von papierbahnen
DE9207852U1 (de) * 1992-06-11 1992-08-27 Kleinewefers Gmbh, 4150 Krefeld Fahrbühne für das Bedienungspersonal eines Kalanders
DE4312272C2 (de) * 1993-04-15 1996-10-24 Troester Maschf Paul Beschickungseinrichtung für Kalander
DE19820087B4 (de) * 1998-05-06 2005-06-23 Eduard Küsters Maschinenfabrik GmbH & Co. KG Kalander für die Behandlung einer Warenbahn

Also Published As

Publication number Publication date
EP1026317A2 (fr) 2000-08-09
US6402889B1 (en) 2002-06-11
EP1026317A3 (fr) 2001-05-16
DE19904180C1 (de) 2000-08-31
DE50003869D1 (de) 2003-11-06

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