US3810817A - Twin-wire papermaking machine with vibrators connected to suction and liquid delivery boxes located beneath the converging wires - Google Patents

Twin-wire papermaking machine with vibrators connected to suction and liquid delivery boxes located beneath the converging wires Download PDF

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Publication number
US3810817A
US3810817A US00192079A US19207971A US3810817A US 3810817 A US3810817 A US 3810817A US 00192079 A US00192079 A US 00192079A US 19207971 A US19207971 A US 19207971A US 3810817 A US3810817 A US 3810817A
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United States
Prior art keywords
wire
wires
suction
liquid
boxes
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Expired - Lifetime
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US00192079A
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English (en)
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H Arledter
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/18—Shaking apparatus for wire-cloths and associated parts
    • 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

Definitions

  • Vibrators are connected to the suction and liquid discharge boxes for oscillation at an angle of between about 20 and 50 degrees to the plane of the wire passing thereover.
  • Slurry passages (which may be oscillated also) are located beneath the slurry contained between the converging wires and function to deliver as well as remove slurry.
  • the invention relates to a papermaking machine with at least one traveling wire with a sheet formation area in which on one side of the wire a sheet is formed by deposition of fibres from a suspension, and on the other side of the wire liquid is sucked away, with passages for suspension, opening against the one side of the wire, and channels for liquid, opening against the other side of the wire.
  • the suspension is fed to the wire through passages opening against the wire and arranged consecutively in the direction of wire travel.
  • the liquid from the suspension is sucked away through channels on the other side of the wire, arranged consecutively in the direction of wire travel.
  • the purpose of the invention is to make possible a better control over the deposition of fibres on the wire.
  • the problem is solved, according to the invention, by using at least one of the suspension passages for removing suspension from the wire, or by using at least one of the liquid channels for feeding liquid to the wire or by use of both of these expedients.
  • zones within the sheet formation area i.e. in the immediate neighborhood of the wire, are arranged in which suspension is removed from the wire, the desired direction and amount of fibre deposition on the wire can be easily achieved.
  • zones on the side of the wire opposite to the sheet from which liquid is not removed but into which liquid is fed. the fibres already deposited on the wire can be loosened again.
  • the channel walls and the passage walls into oscillations of periodic frequency above 800 per minute, the direction of oscillating lying preferably at an angle of at least 20 degrees relatively to the plane of the wire.
  • a very advantageous machine is obtained if the liquid channels are situated in a box, of the type commonly used as a suction box, the wire-supporting wall of the box being convex domed. The wire then remains pressed against the box due to wire tension, even within the zone of liquid flowing towards the wire.
  • boxes 9, 10 and 11, 12 On the other side of wires 1 and 2 are situated boxes 9, 10 and 11, 12 respectively.
  • the box 9 is subdivided into channels 13, 15, 17, 19, and the box 10 into channels 14 16, 18, 20.
  • the passages 5, 6, 7 are for feeding suspension while the passages 4 and 8 remove suspension from the neighborhood of wires 1 and 2, respectively.
  • the passages 5 and 7 could be used for removal of suspension.
  • Each flow connection includes a pump P having a valve V in its inlet whereby the flow rate may be controlled.
  • the formation of the sheet can also be influenced by oscillating the channel walls and passage walls at periodic frequencies above 800 per minute. Vibrators 23 for this purpose are fitted to the boxes 9, 10, 11 and 12. The vibrator for the walls of channels 4 to 8 is not shown in the drawing.
  • the direction of oscillating is shown in the drawing by double arrows.
  • the direction of oscillating is at an angle of at least 20 degrees relatively to the plane of the wire, i.e. for suction boxes 9 and 10 at an angle of about 50 degrees, for suction boxes 11 and 12 at an angle of 30 degrees, and for the walls of passages 4 to 8 at angles of from 20 to 30 degrees.
  • a papermaking machine of the twin wire type including two traveling wires, a headbox, means to supply a liquid suspension of fibres to said headbox, the headbox having bottom Walls over which corresponding wires travel and converge toward one another and means to withdraw liquid from said suspension through said wires and through said bottom walls
  • the improvement which comprises:
  • said means to supply liquid of suspension comprises a box having a convex, Wire supporting surface.

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  • Paper (AREA)
US00192079A 1970-10-30 1971-10-26 Twin-wire papermaking machine with vibrators connected to suction and liquid delivery boxes located beneath the converging wires Expired - Lifetime US3810817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT976470A AT322963B (de) 1970-10-30 1970-10-30 Verfahren zur blattbildung bei einer doppelsieb-papiermaschinen

Publications (1)

Publication Number Publication Date
US3810817A true US3810817A (en) 1974-05-14

Family

ID=3617060

Family Applications (1)

Application Number Title Priority Date Filing Date
US00192079A Expired - Lifetime US3810817A (en) 1970-10-30 1971-10-26 Twin-wire papermaking machine with vibrators connected to suction and liquid delivery boxes located beneath the converging wires

Country Status (6)

Country Link
US (1) US3810817A (enrdf_load_stackoverflow)
AT (1) AT322963B (enrdf_load_stackoverflow)
CA (1) CA966341A (enrdf_load_stackoverflow)
DE (2) DE2152959A1 (enrdf_load_stackoverflow)
FR (1) FR2113332A5 (enrdf_load_stackoverflow)
GB (1) GB1374629A (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048008A (en) * 1975-02-13 1977-09-13 Slovenska Vysoka Skola Technicka Method of and apparatus for forming sheets of fibrous material between converging sieves
US4184913A (en) * 1978-03-31 1980-01-22 Western Electric Company, Incorporated Methods of simultaneously covering each of a plurality of elongated materials with uniformly weighted pulp insulation
US4224105A (en) * 1979-03-02 1980-09-23 Western Electric Company, Inc. Apparatus for simultaneously covering each of a plurality of elongated materials with uniformly weighted pulp insulation
US4515542A (en) * 1983-07-05 1985-05-07 Austria Tabkwerke Aktiengesellschaft vorm. Osterreischische Tabakregie Apparatus for the production of a reconstituted tobacco foil
US4648943A (en) * 1984-05-18 1987-03-10 Valmet-Dominion Inc. Vibrating forming shoe in a twin wire former
US4999087A (en) * 1984-10-03 1991-03-12 Research Association For Pulp And Paper Technology Twin wire forming apparatus with positive pressure foils
WO1991006704A1 (en) * 1989-11-03 1991-05-16 Rodriguez Peter A Method and apparatus for recovering pulp solids from whitewater
US5056195A (en) * 1989-06-29 1991-10-15 Isover Saint-Gobain Mineral fiber collection process and device
US5065478A (en) * 1989-06-29 1991-11-19 Isover Saint-Gobain Process and device for the reception of mineral fibers
US5196090A (en) * 1989-11-03 1993-03-23 Glauco Corbellini Method for recovering pulp solids from whitewater using a siphon
WO1997008383A1 (en) * 1995-08-23 1997-03-06 Thermo Fibertek Inc. Activity induction in papermaking
US5863387A (en) * 1997-05-01 1999-01-26 Voith Sulzer Technology North America, Inc Ultrasonic device for deflocculating fiber suspension in a paper-making machine headbox nozzle
WO2002061202A3 (en) * 2000-12-22 2002-10-10 Vibre Tech Llc Method and apparatus for use of vibrational force in papermaking
US20040140077A1 (en) * 2001-12-21 2004-07-22 Bricco Michael J. Method and apparatus for forming a paper or tissue web
CN111819324A (zh) * 2018-01-05 2020-10-23 国际纸业公司 具有增加的弯曲刚度和横向强度的纸产品及其制造方法
RU2771697C2 (ru) * 2018-01-05 2022-05-11 Интернэшнл Пэйпа Кампани Бумажные изделия, имеющие повышенную жесткость при изгибе и прочность в поперечном направлении, и способы их изготовления

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294657A (en) 1976-11-15 1981-10-13 Kabushiki Kaisha Fuji Seisakusho Apparatus for making fiberboard
DE3107926A1 (de) * 1981-03-02 1982-11-04 Escher Wyss Gmbh, 7980 Ravensburg Verfahren zum ausbilden einer mehrlagigen papierbahn in einem doppelsiebformer und doppelsiebformer zur durchfuehrung des verfahrens
AT374843B (de) * 1982-07-23 1984-06-12 Escher Wyss Gmbh Mehrlagenstoffauflauf fuer insbesondere papiermaschinen
FI85885C (fi) * 1987-11-25 1992-06-10 Tampella Oy Ab Foerfarande foer formering av en fiberbana i en pappersmaskin samt en anordning foer utfoering av foerfarandet.
CA1313964C (en) * 1988-03-30 1993-03-02 Merle W. North Apparatus for forming a web

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048008A (en) * 1975-02-13 1977-09-13 Slovenska Vysoka Skola Technicka Method of and apparatus for forming sheets of fibrous material between converging sieves
US4184913A (en) * 1978-03-31 1980-01-22 Western Electric Company, Incorporated Methods of simultaneously covering each of a plurality of elongated materials with uniformly weighted pulp insulation
US4224105A (en) * 1979-03-02 1980-09-23 Western Electric Company, Inc. Apparatus for simultaneously covering each of a plurality of elongated materials with uniformly weighted pulp insulation
US4515542A (en) * 1983-07-05 1985-05-07 Austria Tabkwerke Aktiengesellschaft vorm. Osterreischische Tabakregie Apparatus for the production of a reconstituted tobacco foil
US4648943A (en) * 1984-05-18 1987-03-10 Valmet-Dominion Inc. Vibrating forming shoe in a twin wire former
US4999087A (en) * 1984-10-03 1991-03-12 Research Association For Pulp And Paper Technology Twin wire forming apparatus with positive pressure foils
US5056195A (en) * 1989-06-29 1991-10-15 Isover Saint-Gobain Mineral fiber collection process and device
US5065478A (en) * 1989-06-29 1991-11-19 Isover Saint-Gobain Process and device for the reception of mineral fibers
US5268015A (en) * 1989-06-29 1993-12-07 Isover Saint-Gobain Process for the reception of mineral fibers
WO1991006704A1 (en) * 1989-11-03 1991-05-16 Rodriguez Peter A Method and apparatus for recovering pulp solids from whitewater
US5196090A (en) * 1989-11-03 1993-03-23 Glauco Corbellini Method for recovering pulp solids from whitewater using a siphon
US5681430A (en) * 1995-08-23 1997-10-28 Thermo Fibertek Inc. Activity induction in papermaking
WO1997008383A1 (en) * 1995-08-23 1997-03-06 Thermo Fibertek Inc. Activity induction in papermaking
US5863387A (en) * 1997-05-01 1999-01-26 Voith Sulzer Technology North America, Inc Ultrasonic device for deflocculating fiber suspension in a paper-making machine headbox nozzle
WO2002061202A3 (en) * 2000-12-22 2002-10-10 Vibre Tech Llc Method and apparatus for use of vibrational force in papermaking
US6702925B2 (en) 2000-12-22 2004-03-09 Vibre-Tech Llc Method and apparatus for forming a paper or tissue web
US7169262B2 (en) 2000-12-22 2007-01-30 Vibre-Tech Llc Method and apparatus for forming a paper or tissue web
US20040149415A1 (en) * 2000-12-22 2004-08-05 Vibre-Tech Llc Method and apparatus for forming a paper or tissue web
US7101462B2 (en) 2001-12-21 2006-09-05 Vibre-Tech, Llc Method and apparatus for forming a paper or tissue web
US20040140077A1 (en) * 2001-12-21 2004-07-22 Bricco Michael J. Method and apparatus for forming a paper or tissue web
US20070068644A1 (en) * 2001-12-21 2007-03-29 Vibre-Tech, Llc. Method and apparatus for forming a paper or tissue web
CN111819324A (zh) * 2018-01-05 2020-10-23 国际纸业公司 具有增加的弯曲刚度和横向强度的纸产品及其制造方法
CN111819325A (zh) * 2018-01-05 2020-10-23 国际纸业公司 具有增加的弯曲刚度和横向强度的纸产品及其制造方法
RU2771697C2 (ru) * 2018-01-05 2022-05-11 Интернэшнл Пэйпа Кампани Бумажные изделия, имеющие повышенную жесткость при изгибе и прочность в поперечном направлении, и способы их изготовления
US11441268B2 (en) * 2018-01-05 2022-09-13 International Paper Company Paper products having increased bending stiffness and cross-direction strength and methods for making the same
US12146264B2 (en) 2018-01-05 2024-11-19 International Paper Company Paper products having increased bending stiffness and cross-direction strength and methods for making the same

Also Published As

Publication number Publication date
GB1374629A (en) 1974-11-20
FR2113332A5 (enrdf_load_stackoverflow) 1972-06-23
CA966341A (en) 1975-04-22
DE2152959A1 (de) 1972-05-25
DE2152958A1 (de) 1972-05-25
AT322963B (de) 1975-06-25

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