EP1772556A1 - Procédé et dispositif pour transférer une bande fibreuse - Google Patents

Procédé et dispositif pour transférer une bande fibreuse Download PDF

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Publication number
EP1772556A1
EP1772556A1 EP06121712A EP06121712A EP1772556A1 EP 1772556 A1 EP1772556 A1 EP 1772556A1 EP 06121712 A EP06121712 A EP 06121712A EP 06121712 A EP06121712 A EP 06121712A EP 1772556 A1 EP1772556 A1 EP 1772556A1
Authority
EP
European Patent Office
Prior art keywords
strip
transfer
machine
carrier strip
adhesive
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Withdrawn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
EP06121712A
Other languages
German (de)
English (en)
Inventor
Josef Kohnen
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 EP1772556A1 publication Critical patent/EP1772556A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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 transfer device in a machine for producing a fibrous web, in particular a paper, board or tissue web, for transferring the beginning of the fibrous web from a first part of the machine in a second, the first part in the web running direction of the fibrous web downstream part of Machine with the aid of at least one transfer strip formed from the fibrous web and using a preferably laterally extending from rollers and cylinders of the machine transfer device.
  • At least one initial separating piece is used for the connection between the material web and the empty winding core.
  • a connection formation arrangement in the form of an adhesive strip is applied, which glues the material web to the new winding core.
  • the initial separator is delivered by a dispenser to the web start of the web, which is to be glued to the winding core.
  • a transfer strip is cut out by means of a lace cutter and, at production speed, cut into a rope cutter, i. H. into the area where two ropes converge at an acute angle.
  • the rope cutter is formed by two circumferential ropes. The transfer strip clamps between the two ropes and is passed at production speed through the calender through to this downstream winding device.
  • the transfer device comprises an arrangement for introducing a carrier strip in the second part of the machine and that the transfer strip is insertable by means of the carrier strip in the second part of the machine.
  • a carrier strip as Hilfsüber Kunststoffst in a conventional manner from amaschinendrabrollung, d. H. a device for transfer, transferred at a selected speed, for example by means of a double cable transfer device through the calender and then accelerated to the production speed of the paper machine.
  • the transfer strip is no longer between the two ropes of the double rope transfer device after transferring, but runs on the plane in which subsequently also the transfer strip of the fibrous web is passed between the calender rolls.
  • the carrier strip after it has been transferred by the double rope transfer device initially, is laterally offset towards the center of the calender rolls, which can be realized in particular by exerting a tensile force on the carrier strip from the exit end of the calender; At the same time, a force can be applied to the carrier strip in order to displace it in the direction of the center of the roll.
  • the carrier strip is released from its entrapment between the two ropes of the double rope transfer device. This is turned off and the carrier strip is accelerated until production speed is reached.
  • the carrier strip now runs exclusively between the calender rolls, without that it projects laterally beyond the end faces.
  • the carrier strip is then accelerated to the production speed of the machine for producing the fibrous web.
  • the transfer strip of the fibrous web is adhered or otherwise secured to the carrier strip, for example by other mechanical connection forces, by magnetic and / or electrical, in particular electrostatic attraction.
  • the first part of the machine is the press section and the second part is the dryer section.
  • the first part of the machine is the dryer section or a coating unit and the second section is a calender, in particular a calender comprising a plurality of rollers.
  • the arrangement comprises a double cable guide with two cables, between which the carrier strip can be passed through the second part, wherein the double cable guide runs along the path of the second part at the side according to the path to be passed through the second part.
  • the carrier strip is drawn in between the rollers of the calender in another way, for example exclusively with the aid of blast air.
  • a transfer device in which the carrier strip is unwound from a winding roll and connected to the at least one transfer strip. It can be provided that only the necessary for the transfer process total length of the carrier strip is wound on the winding roll. Or the winding roll comprises a larger, usable for several transfer operations length of the carrier strip; In this case, a knock-off device must be provided, which must be arranged in the region between the gluing device, by which the carrier strip and the transfer strip are joined together, and the winding roll.
  • the adhesive device comprises a device for dispensing an adhesive strip, in particular a double-sided adhesive strip, or a device for dispensing a liquid adhesive or a spray adhesive.
  • the transfer device may also be characterized in that the adhesive device is in communication with a pressure roller and a counter roller, in whose nip the transfer strip and the carrier strip are compressible together. This allows the carrier strip to securely attach to the transfer strip (or vice versa).
  • the invention also relates to a method for transferring the beginning of a fibrous web in a machine for producing a fibrous web, in particular a paper, board or tissue web, from a first part of the machine in a second, downstream of the first part in the web running direction of the fibrous web Part of the machine with the aid of at least one transfer strip formed from the fibrous web and using a transfer device extending laterally from rollers and cylinders of the machine.
  • the method is characterized in that the carrier strip is first introduced at low speed into the path of the second part, that this is then accelerated to a higher speed, that the at least one transfer strip in the region before the second part is connected to the carrier strip and is conducted together with this through the second part.
  • the method is configured in that, after the end of the carrier strip has passed through the second part together with the transfer strip, or is widened during the common passage of the transfer strip and the carrier strip through the second part of the transfer strip to the full width of the fibrous web ,
  • Another advantage is also a method in which, for the initiation of the transfer process, the transfer strip, which is first passed from the first part into a reject pulper, by means of a transfer device, in particular by means of blowing or suction air and / or at least one transfer plate in the area between a Pressure roller and a counter-roller is guided while they are still pivoted from each other.
  • an adhesive device at least one adhesive strip, in particular a double adhesive strip, or a liquid adhesive, in particular a spray adhesive, in the nip between the pressure roller and the counter roll introduces and that, while the pressure roller and the counter roller are set against each other, the transfer strip is connected to the carrier strip.
  • a paper strip in particular of a paper of higher strength, is used for the carrier strip; but it can also be a plastic strip is used. Such a plastic strip, if it has the appropriate durability, can be reused for a later up or transfer operation.
  • An advantageous method also relates to the fact that the carrier strip, if it consists of paper, is passed after completion of the transfer operation together with the transfer strip of the fibrous web in a reject pulper.
  • the Sprinting-to-peetung is moved transversely to the web running direction, that the carrier strip is guided from a running at least partially next to the lateral surfaces of the rollers and cylinders of the second part position completely in the area of the rollers and that subsequently the transfer strip with the carrier strip is connected.
  • a machine for producing a fibrous web 1 comprises a wire section, a press section, a dryer section - of which only the last drying cylinder 2 is shown in FIG. 1, and a calender 3 with a plurality of rollers 4 to 11, between which the fibrous web is passed to smooth them, for example for SC quality paper.
  • a web guide is possible in which the fibrous web 1 runs only through the nip formed by the rollers 10 and 11.
  • the fibrous web 1 as a whole after it has passed through the dryer section including the drying cylinder 1, guided in a direction of an arrow A located pulper or pulper.
  • a 250 mm wide carrier strip 13 unwound and by means of a (also not shown) known per se Doppelseilüber fürvorraum or another working on the same principle transfer device according to the trajectory of the later to be recovered by the calender 2 fibrous web in the region of the lateral edge the rollers 4 to 11 passed.
  • the calender rolls 4 to 11 are preferably offset from each other.
  • the carrier strip follows a path 14, in which it is first passed between the rollers 4 and 5.
  • the carrier strip 13 can be guided in a trajectory 15 via guide rollers 16, 17, 18 within the calender 3 such that the fibrous web 1 is later passed exclusively through the nip, which form the rollers 10 and 11 together.
  • a rolling device 30 for rolling up the fibrous web 1. After the carrier strip 13 is passed through the calender 3, he is there, at least if it is made of paper and is not reusable, also in the direction of an arrow B in transferred the pulper.
  • the double rope transfer device is turned off, and the carrier strip 13 is a little towards the center of the rollers 4 to 11 attracted, so that it runs only in the area between the lateral surfaces. Then, the carrier strip 13 is accelerated to the desired speed. Before it enters the calender 3, the carrier strip 13 passes between a pressure roller 19 and a counterpressure roller 20, which can be pressed against one another and offset from one another.
  • a transfer strip 22 is separated from the fiber web 1 by means of a cutting device 21, also referred to as a top cutter, which is directed by means of a transfer device 23 and / or by blowing air (possibly on baffles) in the direction between the pressure roller 19 and the counter-roller 20 while the remaining fibrous web 1 continues to be discharged into the pulper.
  • a cutting device 21 also referred to as a top cutter
  • an adhesive device 24 is provided in the interstice between the web guide of the carrier strip 13 and the transfer strip 22, the double-sided adhesive tape 25 (Fig. 2a) in the area between the carrier strip 13 and the transfer strip 22 either on this or is applied to those, so that when subsequently both strips 13, 22 are guided by the nip between the rollers 19, 20, while the rollers 19, 20 are set against each other, the adhesive strip 25, the strips 13, 22 firmly connected together.
  • the carrier strip 13 guides the transfer strip 22 through the calender 3 in accordance with the web guide 14 or the web guide 15. Both are guided together to the winding device.
  • the strips 13, 22 and the adhesive strip 25, if possible, again separated from each other or collected separately and then disposed of. However, you can also work together in Direction of the arrow B are passed into the pulper.
  • the carrier strip 13 is knocked off while the cutting tip of the cutting device 21 is moved parallel to the longitudinal axis of the drying cylinder 2, so that the fibrous web 1 gradually over its entire width in the calender 3 is introduced.
  • a single-sided adhesive strip 26 (FIG. 2 b) can be used if instead of a single transfer strip 22 two transfer strips 27, 28 produced by the cutting device 21 pass through the strip Adhesive strips 26 are pasted that in the area between the two transfer strips 27, 28 nor the carrier strip 13 can be glued by the adhesive strip 26.
  • an adhesive device 29 is used as an alternative to the adhesive device 24, which adheres the adhesive strip 26 from below onto the two transfer strips 27, 28, so that in the free area between the transfer strips 27, 28 the adhesive effect is transferred to the carrier strip 13.
  • the transfer speed is variable and freely selectable. Also, a manual connection of the carrier strip 13 to a single rope using an associated with this adhesive tape or label is possible.
  • the calenders can be operated at operating speed.
  • the paper roll for the Matterriprabwicklung ie for the carrier strip 13, u. U. come from their own production of the same machine.
  • the carrier strip 13 can be another type of paper higher strength use.
  • the fürpenrabwicklung may laterally, ie parallel to the longitudinal axis of the drying cylinder 1, be moved, so that the carrier strip 13 is located during the transfer at the cable level and during the transfer of the transfer strip 22 on the plane thereof.
  • this should consist of a dissolvable material, which can be fed to the paper cycle.
  • the principle described above on the basis of the transfer in the region of the calender 3 can also be applied to other units within the machine for producing the fibrous web 1, for example to the coating unit.
  • the actual transfer operation can take place at a selectively lower speed, which then offers greater safety in the implementation.
  • the transfer of the transfer strip 22 is straight, d. H. without lateral deflection, into the machine.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Paper (AREA)
EP06121712A 2005-10-06 2006-10-04 Procédé et dispositif pour transférer une bande fibreuse Withdrawn EP1772556A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510047941 DE102005047941A1 (de) 2005-10-06 2005-10-06 Überführvorrichtung und Verfahren zum Überführen einer Faserstoffbahn in einer Maschine zur Herstellung einer Faserstoffbahn

Publications (1)

Publication Number Publication Date
EP1772556A1 true EP1772556A1 (fr) 2007-04-11

Family

ID=37606899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06121712A Withdrawn EP1772556A1 (fr) 2005-10-06 2006-10-04 Procédé et dispositif pour transférer une bande fibreuse

Country Status (2)

Country Link
EP (1) EP1772556A1 (fr)
DE (1) DE102005047941A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105314442A (zh) * 2015-11-23 2016-02-10 天章（鹤壁）信息纸品有限公司 一种多联空白打印纸加工设备上纸纠偏机构
CN105836508A (zh) * 2015-01-30 2016-08-10 富士胶片株式会社 卷筒纸卷绕方法及卷筒纸卷绕装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008043358A1 (de) * 2008-10-31 2010-05-06 Voith Patent Gmbh Verfahren und Vorrichtung zur Bahnüberführung
DE102019122312B4 (de) * 2019-08-20 2022-12-22 Voith Patent Gmbh Bahnhaltevorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027352A1 (de) * 1999-06-03 2000-12-07 Valmet Corp Verfahren für einen Papierbahntransfer und Transfervorrichtung für eine Papierbahn
DE10161073A1 (de) * 2001-12-12 2003-06-18 Voith Paper Patent Gmbh Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern sowie Vorrichtung zur Durchführung des Verfahrens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027352A1 (de) * 1999-06-03 2000-12-07 Valmet Corp Verfahren für einen Papierbahntransfer und Transfervorrichtung für eine Papierbahn
DE10161073A1 (de) * 2001-12-12 2003-06-18 Voith Paper Patent Gmbh Verfahren zum Überführen einer laufenden Materialbahn auf einen Wickelkern sowie Vorrichtung zur Durchführung des Verfahrens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105836508A (zh) * 2015-01-30 2016-08-10 富士胶片株式会社 卷筒纸卷绕方法及卷筒纸卷绕装置
CN105314442A (zh) * 2015-11-23 2016-02-10 天章（鹤壁）信息纸品有限公司 一种多联空白打印纸加工设备上纸纠偏机构

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Publication number Publication date
DE102005047941A1 (de) 2007-04-12

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