EP1757547A2 - Dispositif de guidage d'une bande - Google Patents

Dispositif de guidage d'une bande Download PDF

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Publication number
EP1757547A2
EP1757547A2 EP06115622A EP06115622A EP1757547A2 EP 1757547 A2 EP1757547 A2 EP 1757547A2 EP 06115622 A EP06115622 A EP 06115622A EP 06115622 A EP06115622 A EP 06115622A EP 1757547 A2 EP1757547 A2 EP 1757547A2
Authority
EP
European Patent Office
Prior art keywords
web
holding element
auxiliary device
holding
magnet arrangement
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.)
Withdrawn
Application number
EP06115622A
Other languages
German (de)
English (en)
Other versions
EP1757547A3 (fr
Inventor
Christian Schönle
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 EP1757547A2 publication Critical patent/EP1757547A2/fr
Publication of EP1757547A3 publication Critical patent/EP1757547A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4141—Preparing winding process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4141—Preparing winding process
    • B65H2301/41417—Preparing winding process cutting leading strip (überführstreifen) for transferring web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/41—Actuating means using electrostatic forces or magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/84—Paper-making machines

Definitions

  • the invention relates to a device for guiding a web from a first position to a second position, in particular from an unwinding station to a winding section of a reel winder, with an auxiliary device which engages the web at the first full-width position.
  • a web in particular a paper web, withdrawn from a supply roll, passed through a longitudinal cutting device and then fed to a winding section, where the then present in partial webs web is wound on partial web rolls.
  • a winding section where the then present in partial webs web is wound on partial web rolls.
  • the web must be guided from the unwinding station to the winding section.
  • German patent application 10 2004 049 720 proposed to detect the web with an auxiliary device and then to guide the auxiliary device along the predetermined path. For this purpose, it is necessary that the auxiliary device can detect the web over its full width.
  • the invention has for its object to easily detect a web in the region of its beginning in full width.
  • the auxiliary device comprises a first holding element, which extends transversely to the longitudinal extent of the web and at least over the width of the web, and a second holding element, with respect to the first holding element in an open position in which a space for receiving a web beginning is formed between the two holding elements, and in a closed position is displaceable, in which the two holding elements abut each other with the interposition of the web start, wherein one of the holding elements comprises a magnet arrangement which in the closed position, the other holding element holds.
  • auxiliary device With such an auxiliary device, it is possible in a simple manner to detect the web in the region of its beginning over the full width and hold.
  • the web is, when the two holding elements have been moved apart, introduced into the space between the two holding elements. Thereafter, the two holding elements are moved towards each other.
  • the magnet assembly acts on a holding element and pulls the other holding element to it.
  • the material web located between the two holding elements is then clamped and thereby held between the two holding elements.
  • the clamping force can be made sufficient by suitably dimensioning the magnet assembly to be sufficient to move the web from the first position to move to the second position, for example, from the parent roll to a winding position.
  • the other holding element is at least partially formed of a magnetizable material.
  • An iron, an iron-containing material, AlNiCo or other magnetizable material that is attracted to a magnet assembly is generally available.
  • the auxiliary device can therefore be manufactured inexpensively.
  • the magnet arrangement preferably has a magnetic strip.
  • the magnetic strip can extend over the entire width of the web, that is, over the length of the holding element. This ensures that the magnetic forces also act over the entire width of the web. The web is thus held with high reliability between the two holding elements.
  • the magnet arrangement has at least one permanent magnet.
  • the magnetic force is thus generated without the need for an external power supply.
  • a particular advantage lies in the fact that you must then supply the auxiliary device on its way from the first position to the second position from the outside with energy. So no cables or other cables must be looped.
  • the magnet arrangement alternatively or additionally has at least one electromagnet.
  • the holding forces that generates the magnet assembly can be better controlled within certain limits.
  • the second holding element is pivotable relative to the first holding element.
  • the two holding elements thus always have a connection, namely at their common pivot axis. This makes it easier to always position the two holding elements to each other so that they can exert the desired clamping effect on the web beginning.
  • the second holding element is biased relative to the first holding element by a spring in the open position. It makes use of the fact that the force of the magnet assembly decreases with the distance from the magnet assembly. In the "close range", therefore, the magnet arrangement unfolds the greatest force on the other holding element. This force is then far enough to not only apply the clamping force, but also to overcome the force of the spring used for biasing. If you want to open the auxiliary device, then a smaller or larger movement of the second support member is sufficient to let the effect of the magnet assembly decay so far that the spring in its most relaxed position enough force applies to the second support member in the Hold opening position. When the second holding member is held in the open position, it is easier to insert the web start. It is no longer necessary to ensure that the second retaining element does not accidentally collapse.
  • the second holding element is formed at least over part of its length as a two-armed lever.
  • a two-armed lever has one arm on each side of the pivot axis. One arm is used to pinch the web start. The other arm may be used to close or open the accessory. So there is virtually no risk that you touch the paper web in a dangerous manner when handling the second support member, so they are damaged.
  • the first holding element has an opening through which an arm of the second holding element is guided. Through this opening so you can “operate” the second holding element, so move it in the open position or in the closed position.
  • the auxiliary device is held pivotably on carriers.
  • the auxiliary device adjusts that the lowest forces act between the auxiliary device and the web. It can thus be achieved that the web is then not pulled over an edge on the auxiliary device, but the web can be led out more or less straight from the area between the two holding elements.
  • Fig. 1 shows a schematic representation of a roll winding device 1 with an unwinding station 2 and a winding station 3. Between the unwinding station 2 and the winding station 3, a longitudinal cutting device 4 is arranged.
  • an unwinding position 5 is provided in the unwinding station 2 in the unwinding position 5 .
  • a master roll 8 To the spool 7, a master roll 8 Towikkelt, of which a remainder is still visible in Fig. 1.
  • a web 9 is withdrawn.
  • This web 9 is cut in the slitter 4 in several sub-webs and wound in the winding station 3 to several bobbins 10, of which in Fig. 1, only one can be seen because these bobbins 10 are in a direction perpendicular to the plane behind the other.
  • the unwinding 6 is suitable for higher speeds.
  • the web 9 may be at a speed be deducted from 2000 to 3000 m / min.
  • the winding rollers 10 rest on two support rollers 11, 12, of which at least one is driven.
  • a loading roller 13 may be provided to control the winding process.
  • a back-up roll winder in which the winding rollers 10 are held centrally and bear against a support or contact roller.
  • the unwinding station 2 also has a preparation position 14, in which a further reel 15 with a new master reel 16 is kept ready.
  • the preparation position has a preparation bearing 17, which also allows a rotation of the main cylinder 15, but is less expensive, because the necessary rotation speeds are much lower.
  • the preparation bearing 17 and the unwinding bearing 6 are interconnected by a track 18 on which the spool 15 in the preparation position 14 to the unwinding position 5 can roll when a reel change is required.
  • the mother roll 16 is prepared. As a rule, some layers of the web are handled and disposed of in preparation. This process is also referred to as "stalling".
  • a Pulper opening 19 is provided, which is arranged below the preparation position 14 in such a way that under the action of gravity hanging down web 9 hits the pulper opening 19.
  • the parent roll 16 does not always have the same radius, the position of the depending web 9 will move slightly. However, the pulper opening 19 is so large that it can catch the falling web.
  • a hopper 20 may be additionally provided.
  • the roll winding device 1 For insertion, the roll winding device 1 an auxiliary device 21, which is shown in Fig. 1 at different positions. In different positions, the auxiliary device 21 is provided with small letters (a, b, c) for distinction.
  • the auxiliary device 21 is guided on a movement path 22, which is shown as a dashed line.
  • the trajectory is realized by rails or guides, which are arranged on both sides of the web 9 outside its width.
  • a chain, a belt or a rope can be performed, these devices driven in a manner not shown by a common drive so that the auxiliary device 21 can be guided in an orientation perpendicular to the direction of movement of the web 9 from the unwinding station 2 to the winding station 3.
  • the auxiliary device 21 is now moved from the left (relative to the illustration of Fig. 1) to the under the action of gravity vertically hanging down web 9 and attached to the web.
  • Fig. 2 shows the auxiliary device 21 in the open state.
  • the web 9 depends with its beginning 30 so far down that it can be detected by the auxiliary device 21.
  • the auxiliary device is closed. It can be seen that the web 9 is now held.
  • the auxiliary device 21 is shown in section in both figures. It has a first holding element 31, which is formed by an extension of a base body 32.
  • the main body 32 is arranged between two carriers 33. These carriers 33 are moved along the track 22 to pull the web from the unwinding station 2 to the winding station 3.
  • the base body 32 is attached to the carriers 33 via a pivot axis 34. Accordingly, the orientation of the auxiliary device 21 in space may change as it pulls the web 9. In particular, it may, for example, slightly tilt backwards on horizontally extending sections of the movement path 22, so that the path 9, as shown in FIG. 3, also in these sections of the movement path 22 straight out of the auxiliary device 21 can be led out.
  • the auxiliary device 21 has a second holding element 35, which is pivotable relative to the first holding element 31, as indicated by a double arrow 36.
  • the two holding elements 31, 35 are connected to each other via a pivot axis 37.
  • a magnet arrangement in the form of a magnetic strip 38 is provided on the first holding element 31, so that the first holding element 31 on the second holding element 35 side facing a smooth contact surface 39 has.
  • the contact surface 39 is thus free of elevations or depressions. It may, of course, have a certain roughness to improve the engagement with the start 30 of the web 9.
  • the magnetic strip 38 may be formed by permanent magnets. But it is also possible to use an electromagnet alternatively or in addition to permanent magnets.
  • the second holding element 35 is preferably formed from a magnetizable iron. This applies at least to the region which abuts the magnetic strip 38 in the folded state (FIG. 3).
  • a spring 40 is provided, which biases the second holding element 35 in the opening position shown in Fig. 2.
  • the first retaining element 31 For receiving the spring 40, the first retaining element 31 has a recess 41 and the second retaining element has a recess 42.
  • the spring 40 is held in the first holding member 31 by a pin 43.
  • the second holding element 35 is designed as a two-armed lever.
  • a first arm 44 has a contact surface 45, which ultimately acts on the beginning 30 of the web 9.
  • a second arm 46 is disposed on the opposite side of the pivot axis 37. The second arm 46 is guided through an opening 47 which is provided in the first holding element 31.
  • the auxiliary device 21 is opened by pressing on the second arm 46 of the second holding element 35 from the right (with reference to the illustration of FIG. 3). Once the abutment surface 45 has moved far enough away from the magnetic strip 38 that the force of the spring 40 overcomes the force of attraction of the magnetic strip 38, the second retaining element 35 finally unfolds and the web 9 is released.
  • auxiliary device 21 in the unwinding station 2 may also be provided to move the auxiliary device 21 in the unwinding station 2 always in its upright position. This can be realized, for example, with a drive on the carriers 33. It is also possible to act on the located below the pivot axis 34 parts of the body 32 from the outside.

Landscapes

  • Replacement Of Web Rolls (AREA)
EP06115622A 2005-08-16 2006-06-19 Dispositif de guidage d'une bande Withdrawn EP1757547A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005038671A DE102005038671A1 (de) 2005-08-16 2005-08-16 Vorrichtung zum Führen einer Bahn

Publications (2)

Publication Number Publication Date
EP1757547A2 true EP1757547A2 (fr) 2007-02-28
EP1757547A3 EP1757547A3 (fr) 2007-10-17

Family

ID=37390888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06115622A Withdrawn EP1757547A3 (fr) 2005-08-16 2006-06-19 Dispositif de guidage d'une bande

Country Status (2)

Country Link
EP (1) EP1757547A3 (fr)
DE (1) DE102005038671A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2065193A2 (fr) * 2007-08-30 2009-06-03 manroland AG Aide à l'introduction d'une bande de matière à imprimer ou d'une bande partielle à imprimer dans une imprimante rotative à rouleaux
EP2368819A3 (fr) * 2010-03-22 2013-03-27 Benteler SGL GmbH & Co., KG Poignée pour bande de matériau et procédé de manipulation de bandes de matériau
WO2016173850A1 (fr) * 2015-04-30 2016-11-03 Vits Technology Gmbh Dispositif de transport d'une bande de matériau
CN107381148A (zh) * 2017-08-25 2017-11-24 贵州亿博科技有限公司 一种定量切割的热塑膜收卷装置
CN108773717A (zh) * 2018-06-29 2018-11-09 广东思沃精密机械有限公司 拉膜上料装置
WO2021032352A1 (fr) * 2019-08-20 2021-02-25 Voith Patent Gmbh Dispositif de maintien de bande
IT202200014710A1 (it) * 2022-07-13 2024-01-13 Ims Tech S P A Macchina per il converting con infilamento automatico del nastro di materiale

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049720A1 (de) 2004-10-11 2006-04-20 Voith Paper Patent Gmbh Verfahren zum Einführen einer Materialbahn in eine Rollenwickeleinrichtung und Rollenwickeleinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097406A (en) * 1960-08-24 1963-07-16 Le Roy W Yarborough Article holder
US3577583A (en) * 1968-11-29 1971-05-04 Eastman Kodak Co Magnetic clamp
JPS63208455A (ja) * 1987-02-24 1988-08-29 Nippon Kodatsuku Kk 紙固定機構
GB2287242A (en) * 1994-03-11 1995-09-13 Bretting C G Mfg Co Inc Threading webs through web-transport machines.
FI99283C (fi) * 1996-07-16 1998-06-10 Valmet Corp Menetelmä paperirainan tai vastaavan rainamaisen materiaalin päänviennissä rullauslaitteessa, erityisesti pituusleikkurissa sekä laite menetelmän toteuttamiseksi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049720A1 (de) 2004-10-11 2006-04-20 Voith Paper Patent Gmbh Verfahren zum Einführen einer Materialbahn in eine Rollenwickeleinrichtung und Rollenwickeleinrichtung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2065193A2 (fr) * 2007-08-30 2009-06-03 manroland AG Aide à l'introduction d'une bande de matière à imprimer ou d'une bande partielle à imprimer dans une imprimante rotative à rouleaux
EP2065193A3 (fr) * 2007-08-30 2011-11-30 manroland AG Aide à l'introduction d'une bande de matière à imprimer ou d'une bande partielle à imprimer dans une imprimante rotative à rouleaux
EP2368819A3 (fr) * 2010-03-22 2013-03-27 Benteler SGL GmbH & Co., KG Poignée pour bande de matériau et procédé de manipulation de bandes de matériau
WO2016173850A1 (fr) * 2015-04-30 2016-11-03 Vits Technology Gmbh Dispositif de transport d'une bande de matériau
CN107381148A (zh) * 2017-08-25 2017-11-24 贵州亿博科技有限公司 一种定量切割的热塑膜收卷装置
CN108773717A (zh) * 2018-06-29 2018-11-09 广东思沃精密机械有限公司 拉膜上料装置
CN108773717B (zh) * 2018-06-29 2024-02-20 广东思沃先进装备有限公司 拉膜上料装置
WO2021032352A1 (fr) * 2019-08-20 2021-02-25 Voith Patent Gmbh Dispositif de maintien de bande
CN114222710A (zh) * 2019-08-20 2022-03-22 福伊特专利有限公司 幅面固持装置
IT202200014710A1 (it) * 2022-07-13 2024-01-13 Ims Tech S P A Macchina per il converting con infilamento automatico del nastro di materiale
EP4306464A1 (fr) * 2022-07-13 2024-01-17 IMS Technologies S.p.A. Machine de conversion avec insertion automatique de la bande de matériau

Also Published As

Publication number Publication date
EP1757547A3 (fr) 2007-10-17
DE102005038671A1 (de) 2007-02-22

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