EP1418271A1 - Appareil pour détacher une bande de papier d'une toile de formation - Google Patents

Appareil pour détacher une bande de papier d'une toile de formation Download PDF

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Publication number
EP1418271A1
EP1418271A1 EP20030025273 EP03025273A EP1418271A1 EP 1418271 A1 EP1418271 A1 EP 1418271A1 EP 20030025273 EP20030025273 EP 20030025273 EP 03025273 A EP03025273 A EP 03025273A EP 1418271 A1 EP1418271 A1 EP 1418271A1
Authority
EP
European Patent Office
Prior art keywords
felt
wire
paper web
separation point
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.)
Granted
Application number
EP20030025273
Other languages
German (de)
English (en)
Other versions
EP1418271B1 (fr
Inventor
Harald Weigant
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.)
Andritz AG
Original Assignee
Andritz AG
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 Andritz AG filed Critical Andritz AG
Priority to SI200330718T priority Critical patent/SI1418271T1/sl
Publication of EP1418271A1 publication Critical patent/EP1418271A1/fr
Application granted granted Critical
Publication of EP1418271B1 publication Critical patent/EP1418271B1/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
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F2/00—Transferring continuous webs from wet ends to press sections
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/006—Cutting the edges of the paper-web
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/463—Work-feed element contacts and moves with work
    • Y10T83/4632—Comprises a work-moving gripper

Definitions

  • the invention relates to a device for detaching a paper web from a sieve, the pulp suspension through a headbox is inserted between a sieve and a felt, sieve and felt together passed over a forming roller and after the web formation from each other be separated.
  • the invention now wants the disadvantage of the systems of the prior art Improve technology and exact separation even at relatively low Felt tension and large machine widths and / or high machine speeds achieve, the quality of the paper web being high should stay.
  • the separation point as a suction roll with a vacuum chamber is executed, it can also be designed as a suction shoe.
  • At the separation point of the sieve and felt at least one, in particular movable web cutting device, in particular edge spray nozzle (s) or rubber rubber nozzle (s), is (are) provided at the same time an exact cut without influencing the formation of the railway can be achieved.
  • the web cutting device can also between the forming roller and the separation point of the screen and felt on the web his.
  • the web cutting device can in machine longitudinal and / or transverse direction can be made movable.
  • FIG. 1 shows a system according to the prior art
  • FIG. 2 shows a system with the device according to the invention
  • Fig. 3 a detail Fig. 2
  • Fig. 4 shows a detail from Fig. 3
  • Fig. 5 shows an alternative embodiment represents the invention.
  • Fig. 1 shows a section of the wet part of a paper machine for example for the production of tissue paper.
  • the wet end exists from a twin wire former 1 and a headbox 2.
  • the twin wire former 1 is a crescent former with a forming roller 3, a sieve 4 and a felt 5 shown.
  • Sieve 4 and felt 5 run together over the Forming roller 3.
  • Sieve 4 is over a breast roller 6 and after separation guided over a guide roller 7, which is at a short distance from the forming roller 3 is arranged.
  • the felt 5 is separated from the sieve 4 guided together with the paper web 9 formed over a roller 8.
  • FIG. 2 shows a system with the device according to the invention, analog parts with the same reference numerals as in FIG. 1 are designated.
  • Sieve 4 the felt 5 and the intermediate paper web 9 still taken off the forming roller together and a stretch run together. The separation takes place only at the separation point 10.
  • the circumference of the forming roller can be used longer or At higher machine speeds, the same formation times can be achieved can be achieved, which means even at higher machine speeds the quality of the paper web is preserved.
  • a suction shoe 11 is provided here.
  • spray pipes 12 for high pressure water for cutting the edge strips and the Performance strip recognizable.
  • FIG. 3 shows the detail in circle III in FIG. 2.
  • the screen 4 continues to run over a deflection roller 7 Felt 5 and paper web 9 are continued via a deflection roller 8.
  • the suction shoe 11 is connected to a suction pipe 13 and with Openings 14, in particular one running transverse to the web running direction Slot, equipped. Should the edge strip or the lead strip are cut off here, nozzles 12 are used, the Beam is directed into the slot 14 so that any moistening of the Paper web 9 can be avoided and the water discharged in a targeted manner can be.
  • the beam can also be directed in front of the slot 14. It can of course also have two suction slots 14 arranged one behind the other be provided, thereby dividing the spray water particularly well and the suction of the paper web on the felt can be achieved can.
  • FIG. 5 shows an alternative embodiment of the invention.
  • a suction roller 15 with a vacuum chamber 16 used.
  • the advantage of this variant is the possibility of longer a vacuum acts on the felt and thus also on the paper web to let. This can increase the security of paper transfer onto the felt still be increased.
  • the invention is not limited by the embodiments shown. So the high pressure nozzle can also be moved as a so-called Gautschknecht can be arranged to when performing the paper web First create a strip that then extends across the entire width of the paper web is expanded. Also the suction roller or the suction shoe analog devices for separation conceivable.

Landscapes

  • Paper (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Replacement Of Web Rolls (AREA)
  • Basic Packing Technique (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP20030025273 2002-11-11 2003-11-06 Appareil pour détacher une bande de papier d'une toile de formation Expired - Lifetime EP1418271B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200330718T SI1418271T1 (sl) 2002-11-11 2003-11-06 Naprava za odstranjevanje papirnega traka s sita

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT16922002 2002-11-11
AT0169202A AT412098B (de) 2002-11-11 2002-11-11 Vorrichtung zur trennung einer papierbahn von einem sieb

Publications (2)

Publication Number Publication Date
EP1418271A1 true EP1418271A1 (fr) 2004-05-12
EP1418271B1 EP1418271B1 (fr) 2007-01-03

Family

ID=31192799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030025273 Expired - Lifetime EP1418271B1 (fr) 2002-11-11 2003-11-06 Appareil pour détacher une bande de papier d'une toile de formation

Country Status (9)

Country Link
US (1) US7005037B2 (fr)
EP (1) EP1418271B1 (fr)
AT (2) AT412098B (fr)
BR (1) BR0305190A (fr)
CA (1) CA2448105A1 (fr)
DE (1) DE50306172D1 (fr)
ES (1) ES2279919T3 (fr)
PT (1) PT1418271E (fr)
SI (1) SI1418271T1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412098B (de) * 2002-11-11 2004-09-27 Andritz Ag Maschf Vorrichtung zur trennung einer papierbahn von einem sieb
US8968519B2 (en) 2013-03-14 2015-03-03 Georgia-Pacific Consumer Products Lp Sheet edge trimming and removal from a structured paper fabric

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951736A (en) * 1974-12-30 1976-04-20 Tadashi Kobayashi Single-layer and multi-layer paper making apparatus
US4113557A (en) * 1976-04-14 1978-09-12 Valmet Oy Paper manufacturing structure particularly for detaching a web from a wire
US5908534A (en) * 1992-08-04 1999-06-01 Valmet-Karlstad Ab Method and device for web cutting in the former of a paper machine
DE19803451A1 (de) * 1998-01-30 1999-08-05 Voith Sulzer Papiertech Patent Naßpartie und Verfahren zum Herstellen einer Faserstoffbahn
US6361654B1 (en) * 2000-04-26 2002-03-26 Kimberly-Clark Worldwide, Inc. Air knife assisted sheet transfer
EP1245727A1 (fr) * 2001-03-26 2002-10-02 A. CELLI S.p.A Procédé et dispositif pour la fabrication d' une bande de papier

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625814A (en) * 1969-06-13 1971-12-07 Allis Chalmers Mfg Co Multilayer papermaking machine with impervious roll web former
US4224104A (en) * 1976-04-14 1980-09-23 Valmet Oy Paper manufacturing structure particularly for detaching a web from a wire
US4790909A (en) * 1986-12-17 1988-12-13 Beloit Corporation Two-wire paper forming apparatus
FI84734C (fi) * 1988-05-23 1992-01-10 Valmet Paper Machinery Inc Dubbelviraformare foer pappersmaskin.
US5164045A (en) * 1991-03-04 1992-11-17 James River Corporation Of Virginia Soft, high bulk foam-formed stratified tissue and method for making same
DE4328024A1 (de) * 1993-08-20 1995-02-23 Voith Gmbh J M Doppelsieb-Blattbildner
US5695607A (en) * 1994-04-01 1997-12-09 James River Corporation Of Virginia Soft-single ply tissue having very low sidedness
US6350349B1 (en) * 1996-05-10 2002-02-26 Kimberly-Clark Worldwide, Inc. Method for making high bulk wet-pressed tissue
FI110702B (fi) * 1996-09-06 2003-03-14 Metso Paper Inc Menetelmä ja järjestely rainanmuodustusosassa rainan jälleenkastumisen estämiseksi
DE19651493A1 (de) * 1996-12-11 1998-06-18 Voith Sulzer Papiermasch Gmbh Siebpartie und Verfahren zum Formen einer mehrlagigen Faserstoffbahn
DE19803591A1 (de) * 1998-01-30 1999-08-05 Voith Sulzer Papiertech Patent Doppelsieb-Former
FI981098A (fi) * 1998-05-18 1999-11-19 Valmet Corp Paperikoneen kaksiviirainen tela-kiraformeri
US6511579B1 (en) * 1998-06-12 2003-01-28 Fort James Corporation Method of making a paper web having a high internal void volume of secondary fibers and a product made by the process
US6231723B1 (en) * 1999-06-02 2001-05-15 Beloit Technologies, Inc Papermaking machine for forming tissue employing an air press
DE10022110B4 (de) * 2000-05-08 2007-10-25 Dieter Ronnenberg Beeinflussung eines Bahneigenschafts-Profiles mittels mindestens eines Schallfeldes
US6454904B1 (en) * 2000-06-30 2002-09-24 Kimberly-Clark Worldwide, Inc. Method for making tissue sheets on a modified conventional crescent-former tissue machine
US6558510B1 (en) * 2000-08-21 2003-05-06 Fort James Corporation Wet-crepe process utilizing narrow crepe shelf for making absorbent sheet
DE10106731A1 (de) * 2001-02-14 2002-08-22 Voith Paper Patent Gmbh Doppelsiebformer zur Herstellung einer Faserstoffbahn aus einer Faserstoffsuspension
DE20104380U1 (de) * 2001-03-13 2001-06-28 Voith Paper Patent GmbH, 89522 Heidenheim Doppelsiebformer
JP3513126B2 (ja) * 2001-09-06 2004-03-31 三原菱重エンジニアリング株式会社 製紙機械の紙形成装置
AT412098B (de) * 2002-11-11 2004-09-27 Andritz Ag Maschf Vorrichtung zur trennung einer papierbahn von einem sieb

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951736A (en) * 1974-12-30 1976-04-20 Tadashi Kobayashi Single-layer and multi-layer paper making apparatus
US4113557A (en) * 1976-04-14 1978-09-12 Valmet Oy Paper manufacturing structure particularly for detaching a web from a wire
US5908534A (en) * 1992-08-04 1999-06-01 Valmet-Karlstad Ab Method and device for web cutting in the former of a paper machine
DE19803451A1 (de) * 1998-01-30 1999-08-05 Voith Sulzer Papiertech Patent Naßpartie und Verfahren zum Herstellen einer Faserstoffbahn
US6361654B1 (en) * 2000-04-26 2002-03-26 Kimberly-Clark Worldwide, Inc. Air knife assisted sheet transfer
EP1245727A1 (fr) * 2001-03-26 2002-10-02 A. CELLI S.p.A Procédé et dispositif pour la fabrication d' une bande de papier

Also Published As

Publication number Publication date
BR0305190A (pt) 2004-08-31
EP1418271B1 (fr) 2007-01-03
US20040129399A1 (en) 2004-07-08
ATA16922002A (de) 2004-02-15
ES2279919T3 (es) 2007-09-01
DE50306172D1 (de) 2007-02-15
ATE350533T1 (de) 2007-01-15
AT412098B (de) 2004-09-27
PT1418271E (pt) 2007-03-30
CA2448105A1 (fr) 2004-05-11
SI1418271T1 (sl) 2007-06-30
US7005037B2 (en) 2006-02-28

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