EP1580319B1 - Dispositif et procédé de guidage d'une bande d'enfilement - Google Patents

Dispositif et procédé de guidage d'une bande d'enfilement Download PDF

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Publication number
EP1580319B1
EP1580319B1 EP05102129A EP05102129A EP1580319B1 EP 1580319 B1 EP1580319 B1 EP 1580319B1 EP 05102129 A EP05102129 A EP 05102129A EP 05102129 A EP05102129 A EP 05102129A EP 1580319 B1 EP1580319 B1 EP 1580319B1
Authority
EP
European Patent Office
Prior art keywords
ropes
rope
web
strip
web path
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.)
Not-in-force
Application number
EP05102129A
Other languages
German (de)
English (en)
Other versions
EP1580319A1 (fr
Inventor
Harald Meysel
Lars Mallasch
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 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 Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1580319A1 publication Critical patent/EP1580319A1/fr
Application granted granted Critical
Publication of EP1580319B1 publication Critical patent/EP1580319B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0063—Devices for threading a web tail through a paper-making machine
    • D21G9/0072—Devices for threading a web tail through a paper-making machine using at least one rope

Definitions

  • the invention relates to a device for guiding a threading strip of a material web along a web path with a cable arrangement comprising at least two ropes, which are guided on a guide path in the machine direction next to the web path from a receiving position to a dispensing position, wherein the ropes in the region of the collecting position converge in a rope scissors. Furthermore, the invention relates to a method for guiding a threading strip of a material web along a web path in which the threading strip is clamped between at least two ropes which are guided adjacent to the web path parallel to the web path between a catch position and a machine direction release position.
  • a paper web is produced with relatively large widths of currently up to 10 m. During production, it must be passed through a series of processing facilities. These include, for example, the press section and the dryer section of a paper machine, a calender, a coater, etc. Between these individual facilities or units and in individual facilities there are free trains in which the paper web is not directly supported, so not on a roller, a roll or a drum rests. Such free moves need to be bridged when recording or resuming production.
  • the web must be fed many times at the speed through the aggregates with which it is discharged from the paper machine. This speed is often much more than 1,000 m / min today.
  • so-called cable guides are often used for the insertion process of the paper web.
  • a cable guide is guided parallel to the desired course of the paper web through the corresponding unit or bridges also free trains between units.
  • two or even three cables are arranged closely adjacent to one another and form a guide path in this area.
  • the ropes usually go through separate circuits.
  • a so-called "rope scissors” At the beginning of the railway path is a so-called “rope scissors", in which the ropes converge. The beginning of the paper web, which runs into this rope scissors, is therefore gripped by the converging ropes, clamped and then pulled in the guide track along the web path through the desired processing unit.
  • the ropes are outside the later treatment path, that is arranged outside the track path. This has the advantage that they can not interfere with the treatment of the web later.
  • this one has Arrangement the disadvantage that the strip which is cut from the paper web, not only a short distance in the machine direction must be promoted to be taken in the rope scissors of the ropes. He must also be a certain distance laterally, so in the cross machine direction, deflected.
  • the necessary lateral offset is often in the order of 10 to 50 cm.
  • auxiliary equipment is used, such as suction or blowing nozzles or pivotable baffles or guide strips. This results in a considerable maintenance and a risk during insertion, if these facilities fail.
  • the invention has for its object to make the insertion of EinfädelstMails reliable in the rope scissors.
  • ropes are deflected with a short section following the rope shears relative to this rope level.
  • each rope remains in the rope plane, ie outside the track path, so that one must meet here no restrictions with regard to the guidance of the ropes by a treatment device.
  • the short section which is deflected out of the rope plane, can be arranged to accommodate the later treatment of the web does not bother.
  • the term "rope” is used here for the sake of clarity.
  • the term “rope” should also be understood to mean corresponding elements, for example bands.
  • the ropes are displaced by the rope cutter.
  • the rope scissors In addition to the function of clamping the threading strip, the rope scissors then have the function of relocating the ropes. Since a device is available with the rope scissors anyway, with the ropes are positioned, you can give the rope scissors with relatively little effort this additional function.
  • the rope scissors on rollers on which the ropes are guided, and the rollers are tilted.
  • tilting the role can be easily achieve a lateral displacement of the cables with a section in the catchment position.
  • relocation For example, you can use smooth rolls on which the ropes then slide when tilting the rollers in a certain direction, namely in the cross machine direction, on the track path.
  • the rope scissors rollers having guide grooves in which the ropes are guided, and the rollers are displaced. This is also achieved in the movement of the "rope beginnings", i. the sections of the ropes that follow the rope scissors, a reliable guide. About the movement of the rollers provided with guide rollers can be relatively accurately control the displacement movement of the cables in the cross machine direction.
  • the rope cutter is attached to a lever which is pivotable about an axis which is parallel to the machine direction.
  • the term "parallel" is not to be understood in a mathematical sense. Even larger deviations are quite permissible.
  • the lever is pivotable in the transverse machine direction, ie the rope scissors, which has a certain distance from the axis is displaced by this pivotal movement in the transverse machine direction.
  • the lever is vertically aligned in the catching position and inclined in the rest position.
  • the rope scissors must remain in the catching position even when guiding the EinfädelstMails along the track path only for a comparatively short period of time. In essence, this is necessary only until the beginning of the threading strip has been seized. Since a certain force is usually required for erecting the lever, the operation with a vertical position in the catching position is economical.
  • the lever In the rest position, the lever may rest against a stop, for example.
  • the cable guide can be disabled anyway, because then pulls the EinfädelstMail laterally from the ropes and cuts the web to width.
  • the ropes at least at a predetermined distance in the direction behind the rope cutter on a fixedly arranged lateral guide. This measure ensures in a simple manner that only a portion of the ropes, which follows the rope scissors, more precisely the catching position, is deflected. The rest of the ropes remain in the rope plane, ie outside the track path, so that the treatment device through which the material web is to be guided, is not affected.
  • the rope scissors on an opening device has the advantage that the rope cutter can be opened. This is done to clamp only the beginning of the threading line between the ropes along the track path. This is enough.
  • the threading strip must have sufficient strength so as not to break off. A certain distance after the beginning of the threading strip, the threading strip can then move laterally out of the cable guide. He is thus after insertion already in the path or just with a small offset in the cross machine direction next to it. The subsequent width cutting of the web then leads a little faster that you can take the treatment of the web.
  • a first element of a cutting shear is arranged, with which cooperates in the collecting position of the rope scissors, a second element of the cutting shear.
  • the use of a cutting shear has the advantage that the EinfädelstMail is severed over its entire width virtually simultaneously.
  • the first element of the cutting shear can then be used simultaneously as a guide element.
  • the object is achieved in a method of the type mentioned in that the cables are deflected with a portion in the region of the collection position upon detection of a beginning of the EinfädeistMakes in the web path.
  • the cable guide can be kept completely outside the path of the track. Only in a relatively short section at the beginning of the route in which the ropes are guided, the ropes are deflected in the cross-machine direction and indeed so far that they can detect the EinfädelstMail. Once this has been achieved, a further selection guidance is no longer required.
  • the portion of the cables after detection is moved out of the path again. This keeps the friction, which acts by the deflection of the ropes laterally on the ropes, small.
  • the ropes are deflected only for the time necessary to detect the beginning of the threading strip. Moreover, the rope scissors can remain in the rest position.
  • the ropes are brought together in the collecting position in a rope scissors and the rope scissors is opened after detecting the beginning of the threading strip.
  • the remainder of the threading strip is then no longer guided by the ropes, but by the train of the web, ie the threading strip itself. This makes it possible that the threading remains at least largely in the path.
  • a paper web 1 comes from a first processing station 2, for example the exit of the press section of a paper machine, and is then to be passed through a second processing station 3, for example the dryer section, in which several Drying cylinders are arranged 4 to 6, over which the paper web 1 must be performed alternately above and below.
  • a cable assembly 7 is guided.
  • the cable arrangement 7 is arranged outside the web path of the paper web 1 in a guide path. It is passed over rollers 8-10, which is designed as guide rollers with side guides not shown for the cable assembly 7.
  • the cable assembly 7 consists of two or three cables which are mounted in corresponding circumferential grooves in the rollers 8-10.
  • the rollers 8-10 have the same diameter as the drying cylinders 4-6. But they are rotatably mounted relative to the drying cylinders 4-6.
  • the cable assembly 7 is arranged in a plane on which the paper web 1 is vertical. This level is called the "rope level". Outside this guide path parallel to the path of the ropes cable assembly 7 are each performed in a single circulation. It is quite possible that the ropes in this circulation also run outside the rope plane.
  • a threading strip 11 is first cut from the paper web 1.
  • the remainder of the paper web 1 is fed into the pulper and disposed of.
  • the threading strip 11 must now be gripped by the cable arrangement 7, which, as mentioned above, is arranged outside the web path of the paper web.
  • the paper web 1 runs in the machine direction.
  • the cables of the cable arrangement 7 are displaced at the receiving position 13 in the transverse machine direction, ie perpendicular to the machine direction, so that the cable arrangement 7 remains largely in the cable plane, but the section 12 extends as a transition section at a predetermined angle to the machine direction.
  • the cable arrangement 7 has an upper cable 16 and one or two lower cables 17, which converge in a cable cutter 18.
  • the rope cutter 18 has an upper deflection roller 19 for the upper cable 16 and a lower deflection roller 20 for the lower cable 17. The following is spoken of an upper cable 16 and a lower cable 17, even if instead of a rope two ropes can be present.
  • the rope cutter 18 is arranged at the upper end of a lever arm 21 which is pivotable about an axis 22 which is arranged parallel to the machine direction.
  • a pivot drive 23 is provided, which may for example have the shape of a piston-cylinder unit.
  • the lower guide roller 20 with respect to the upper guide roller 19 is displaced, wherein a corresponding positioning drive 24 acts on a lever 25 on which the lower guide roller 20 is arranged.
  • the cable shears 18 is opened accordingly.
  • baffle 30 is swung out, so that the threading 11 is not only severed, but on the baffle 30 and the two elements 27, 29 of the flywheel knife in the rope scissors 18, which is closed for this purpose, of course , is introduced.
  • the side assembly 7 then takes the thus formed beginning of the threading strip 11 and leads in parallel to the track path.
  • the rope scissors 18 between a in Fig. 5 illustrated rest position in which it is located outside the web path of the paper web 1, and a in Fig. 4 shown collecting position displaced.
  • the rope cutter 18 In the rest position, the rope cutter 18 is arranged outside the web path of the paper web 1.
  • the rope cutter 18 In the collecting position, the rope cutter 18 is arranged in the web path and accordingly able to detect the threading strip 11 without having to be displaced in the transverse machine direction.
  • the side scissors 18 is opened, as shown in Fig. 3 is shown by the dashed position of the lower guide roller 20.
  • the rope cutter 18 is indeed no longer able to clamp the threading strip 11. But this is not necessary.
  • the threading strip 11 is held only at its beginning, ie at its tip, so that the remaining remnants of the threading strip 11 can remain in the web path, even if the beginning of the threading strip 11 is pulled by the cable arrangement 7 outside the web path.

Landscapes

  • Paper (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (12)

  1. Dispositif de guidage d'une bande d'enfilement d'une bande de matière le long d'un chemin de bande avec un système de câbles, qui comprend au moins deux câbles, qui sont guidés ensemble sur une zone de guidage dans la direction de la machine, à côté du chemin de bande, depuis une position de réception jusqu'à une position de sortie, dans lequel les câbles cheminent ensemble en une cisaille à câbles dans la région de la position de sortie, caractérisé en ce que les câbles (16, 17) sont déplaçables, dans la région de la cisaille à câbles (18), entre une position de repos à l'extérieur du chemin de bande, à partir de laquelle ils s'étendent dans le plan des câbles, et une position de reprise à l'intérieur du chemin de bande, à partir de laquelle les câbles (16, 17) s'étendent sous un angle prédéterminé par rapport au plan des câbles dans une section de transition (12).
  2. Dispositif selon la revendication 1, caractérisé en ce que les câbles (16, 17) sont déplaçables à travers la cisaille à câbles (18).
  3. Dispositif selon la revendication 2, caractérisé en ce que la cisaille à câbles (18) comporte des rouleaux (19, 20), sur lesquels les câbles (16, 17) sont guidés, et les rouleaux (19, 20) sont inclinables.
  4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que la cisaille à câbles (18) comporte des rouleaux (19, 20) avec des rainures de guidage, dans lesquelles les câbles (16, 17) sont guidés, et les rouleaux (19, 20) sont déplaçables.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la cisaille à câbles (18) est fixée sur un levier (21), qui peut pivoter autour d'un axe (22), qui est parallèle à la direction de la machine.
  6. Dispositif selon la revendication 5, caractérisé en ce que le levier (21) est orienté verticalement dans la position de reprise et est incliné dans la position de repos.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les câbles (16, 17) présentent, au moins à une distance prédéterminée derrière la cisaille à câbles (18) dans la direction de défilement, un guidage latéral disposé de façon fixe.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la cisaille à câbles (18) présente un dispositif d'ouverture (24).
  9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'un premier élément (27) d'une cisaille-guillotine est disposé avant la cisaille à câbles (18) dans la direction de défilement de la bande d'enfilement (11), avec lequel un second élément (29) de la cisaille-guillotine coopère dans la position de reprise de la cisaille à câbles (18).
  10. Procédé de guidage d'une bande d'enfilement d'une bande de matière le long d'un chemin de bande, dans lequel la bande d'enfilement est serrée entre au moins deux câbles, qui sont guidés à côté du chemin de bande, parallèlement au chemin de bande, entre une position de reprise dans la direction de la machine et une position de sortie, caractérisé en ce que les câbles sont déviés avec une section dans la région de la position de reprise lors de la saisie d'un début de la bande d'enfilement dans le chemin de bande.
  11. Procédé selon la revendication 10, caractérisé en ce que la section des câbles est, après avoir été saisie, de nouveau écartée hors du chemin de bande.
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce que les câbles sont rassemblés dans une cisaille à câbles dans la position de reprise et la cisaille à câbles est ouverte après avoir saisi le début de la bande d'enfilement.
EP05102129A 2004-03-25 2005-03-18 Dispositif et procédé de guidage d'une bande d'enfilement Not-in-force EP1580319B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014557A DE102004014557A1 (de) 2004-03-25 2004-03-25 Vorrichtung und Verfahren zum Führen eines Einfädelstreifens
DE102004014557 2004-03-25

Publications (2)

Publication Number Publication Date
EP1580319A1 EP1580319A1 (fr) 2005-09-28
EP1580319B1 true EP1580319B1 (fr) 2009-08-19

Family

ID=34854036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05102129A Not-in-force EP1580319B1 (fr) 2004-03-25 2005-03-18 Dispositif et procédé de guidage d'une bande d'enfilement

Country Status (3)

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EP (1) EP1580319B1 (fr)
AT (1) ATE440175T1 (fr)
DE (2) DE102004014557A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005052606A1 (de) * 2005-11-04 2007-05-10 Voith Patent Gmbh Einführvorrichtung
DE102007023216A1 (de) 2007-05-18 2008-11-20 Voith Patent Gmbh Seilführungsanordnung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954466A1 (de) * 1999-11-12 2001-05-17 Voith Paper Patent Gmbh Vorrichtungen und Verfahren zur Überführung eines Einfädelstreifens einer Materialbahn
DE10150820A1 (de) * 2001-10-15 2003-04-17 Voith Paper Patent Gmbh Maschine zur Herstellung oder Behandlung einer Materialbahn

Also Published As

Publication number Publication date
DE102004014557A1 (de) 2005-10-13
DE502005007915D1 (de) 2009-10-01
EP1580319A1 (fr) 2005-09-28
ATE440175T1 (de) 2009-09-15

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