EP0776742A1 - Dispositif pour la fabrication de panneaux de particles, panneaux de fibres ou autre - Google Patents

Dispositif pour la fabrication de panneaux de particles, panneaux de fibres ou autre Download PDF

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Publication number
EP0776742A1
EP0776742A1 EP96810682A EP96810682A EP0776742A1 EP 0776742 A1 EP0776742 A1 EP 0776742A1 EP 96810682 A EP96810682 A EP 96810682A EP 96810682 A EP96810682 A EP 96810682A EP 0776742 A1 EP0776742 A1 EP 0776742A1
Authority
EP
European Patent Office
Prior art keywords
pressing
rollers
metal strip
jacket
pressure
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
EP96810682A
Other languages
German (de)
English (en)
Other versions
EP0776742B1 (fr
Inventor
Eugen Schnyder
Günther Machguth
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
De Pretto Escher Wyss SRL
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 De Pretto Escher Wyss SRL filed Critical De Pretto Escher Wyss SRL
Publication of EP0776742A1 publication Critical patent/EP0776742A1/fr
Application granted granted Critical
Publication of EP0776742B1 publication Critical patent/EP0776742B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/26—Moulding or pressing characterised by using continuously acting presses having a heated press drum and an endless belt to compress the material between belt and drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • thermosetting binders In devices of this type, an introduced, machined or shredded lignocellulose or cellulose material mixed with thermosetting binders is compressed, cured and shaped by the action of pressure and temperature for a sufficiently long time.
  • This press section can be designed in different ways, for example the "cake” to be hardened is pressed, heated and shaped between two endless steel strips.
  • machines are known in which the "cake” is pressed, heated and shaped between a drum and a steel strip partially enclosing this drum.
  • the aim of this molding process is to apply a surface pressure of at least 3 N / mm2 to the product when it enters the molding section, with simultaneous heat input, and to maintain this value over the entire pressing section or to increase this value depending on the desired process control or lower.
  • This press line The plate is brought to the desired final thickness in the longitudinal and transverse directions by a suitable form of pressurization.
  • Versions are known in which a heating drum is wrapped with a steel strip, the desired surface pressure being achieved primarily by the steel strip pretension.
  • the achievable surface pressure of the steel strip in the pressing section is increased locally at 4-5 points, additionally by applying relatively large rollers.
  • These rollers generally have a diameter of clearly> 1 m, which is necessary when using relatively rigid rollers in order to reduce the stress on the steel strip and to extend the dwell time of the cake in the area of increased pressure.
  • This version complies with the process engineering goal of a continuously high pressing of the cake, but the clearly existing zones with only pressing by the tensioned belt are of considerable expansion due to the relatively large roll spacings caused by the large rolls.
  • the rigidity of these rollers also makes it impossible to exert a targeted and momentary influence on the lateral force in the press section.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a device in which the zones with increased pressure are expandable and can be influenced transversely by using a plurality of rollers with a controllable contact force curve in the transverse direction to the material running direction.
  • the device shown is referred to as a drum press.
  • the device contains a drum 1 with a Outside diameter of, for example, 3 to 5 m, a steel strip 2 which wraps around the drum 1 over a large part of its circumference, a roller arrangement 3, 4, 5 and 6 in order to guide or deflect the steel strip and a pressing device 7 which has a plurality of pressure rollers 8 contains.
  • the roller arrangement comprises a press roller 3, a heating roller 4, a tension roller 5 and a deflecting roller 6.
  • the roller arrangement wraps around the drum, which forms a press path P, the pressing force on the one hand due to the prestressing of the steel strip and on the other hand through the plurality of Pressure rollers 8 with controllable pressure force curve and relatively small outer diameter is reinforced.
  • the pressing device 7 is designed in two parts, one section being provided on a press section which is provided between the press roll 3 and the heating roll 4 and the other section being provided downstream of the heating roll 4 in the direction of belt travel.
  • the pressure rollers 8 have different outside diameters. Pressure rollers with an outer diameter of up to approximately 800 mm are advantageously used.
  • the drum contains a stationary yoke 10, a casing 11 which rotates around the yoke and five support elements 9 which support the casing against the pressing force of the pressing section P.
  • the support elements 9 are advantageously fed directly with a heat transfer medium 12, which eliminates additional effort for heating the drum by a heating roller.
  • the press section is formed continuously by means of pressure rollers 8 with a controllable pressure force curve.
  • the steel strip 2 can be between the pressure rollers 8, for example with hot air 13 and / or additionally heated by quartz radiators 13.
  • roller pairs 26 are arranged along the entire length of the pressing section, which in the case shown are each formed from a conventional roller 15 and a pressure roller 8 with a controllable pressure force curve.
  • FIG. 5 and 6 shows a pressure roller 8 with a controllable bending line, in particular a self-adjusting F-roller.
  • a pressure roller 8 consists of a stationary support 18 and a rotating jacket 19 which is supported by support elements 20 over the entire length.
  • the jacket 19 is made of a high temperature resistant plastic, which, thanks to balanced fiber reinforcement, has an optimal radial rigidity.
  • the support elements 20 can be fed individually via feed lines 21 in order to allow the pressure force curve to be adapted well to the process requirements transversely to the web running direction.
  • a total supply of the support elements 20 via a common supply line 20 is also possible, and such a solution is particularly useful in the inlet zone.
  • These pressure rollers 8 can also be provided with an auxiliary drive 17 (in the form of, for example, a rotating traction cable), which synchronizes the roller circumferential speed with the steel belt 2 during the application or separation of the pressure rollers 8 or made possible by steel strip 2.
  • the auxiliary drive 17 also serves the purpose of preventing one-sided heating of the jacket 19 of the pressure rollers 8 in the separated state by the pressure rollers 8 being rotated continuously and slowly.
  • the bearing section of the self-adjusting F-roller shown is designed such that a stroke of the jacket 19 of at least 8 mm, relative to the yoke 18, is made possible in the pressing direction.
  • FIG. 7 shows a further embodiment of the press roll shell 19, in which a temperature-resistant plastic 23 or an elastomer with similar properties is applied to a metallic carrier tube 23.
  • FIG. 8 shows an embodiment in the form of a metallic jacket 25, with an outer surface layer 25 improved by roll compression, which considerably improves the durability of the jacket surface.
  • the device comprises a rigid cylindrical body 1 which is arranged in a rotatable manner, an endless metal strip 2 which is guided over rollers 3 - 6 and which is in contact with the cylindrical body to form a press section, and a pressing device 7 which presses the metal strip and which is a plurality of pressure rollers 8 with controllable pressure profile, which are arranged in along the press section.
  • the pressure rollers increase the number of pressing points and pressing within the pressing section can be adapted to the requirements.
  • the device is particularly suitable for compacting, curing and molding with thermosetting binders mixed, machined or shredded lignocellulose or cellulose material.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Die Bonding (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Press Drives And Press Lines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP96810682A 1995-11-29 1996-10-11 Dispositif pour la fabrication de panneaux de particles, panneaux de fibres ou autre Expired - Lifetime EP0776742B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH338495 1995-11-29
CH03384/95A CH690757A5 (de) 1995-11-29 1995-11-29 Einrichtung zur Herstellung von Spanplatten oder Faserplatten.
CH3384/95 1995-11-29

Publications (2)

Publication Number Publication Date
EP0776742A1 true EP0776742A1 (fr) 1997-06-04
EP0776742B1 EP0776742B1 (fr) 2001-08-22

Family

ID=4254797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810682A Expired - Lifetime EP0776742B1 (fr) 1995-11-29 1996-10-11 Dispositif pour la fabrication de panneaux de particles, panneaux de fibres ou autre

Country Status (4)

Country Link
EP (1) EP0776742B1 (fr)
AT (1) ATE204526T1 (fr)
CH (1) CH690757A5 (fr)
DE (1) DE59607528D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1389510A2 (fr) 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1389511A2 (fr) * 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1389512A2 (fr) * 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1391279A2 (fr) * 2002-08-19 2004-02-25 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
WO2004076142A2 (fr) * 2003-02-26 2004-09-10 Kronospan Technical Company Ltd. Presse et procede de production de panneaux
WO2011155869A1 (fr) * 2010-06-09 2011-12-15 Nikishichev Dmitry Borisovich Filtre-presse
EP2538115A2 (fr) 2006-06-22 2012-12-26 Toyota Jidosha Kabushiki Kaisha Procédé de fabrication d'un mécanisme pour convertir un mouvement de rotation en un mouvement linéaire et gabarit pour exécuter le procéde.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239096A1 (de) * 2002-08-26 2004-03-11 Voith Paper Patent Gmbh Walze
DE10239089A1 (de) * 2002-08-26 2004-03-11 Voith Paper Patent Gmbh Biegeausgleichswalze
DE10239097A1 (de) * 2002-08-26 2004-03-11 Voith Paper Patent Gmbh Biegeausgleichswalze

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110754A1 (de) * 1971-03-06 1972-09-21 Siempelkamp Gmbh & Co Anlage zur kontinuierlichen Herstellung von Spanplatten
GB1322144A (en) * 1971-02-10 1973-07-04 Berstorff Gmbh Masch Hermann Equipment for the production of wood-wool boards
US3942929A (en) * 1972-03-08 1976-03-09 Bison-Werke Bahre & Greten Gmbh & Co. Kg Continuously operating press
FR2312363A1 (fr) * 1975-05-28 1976-12-24 Feldmuehle Anlagen Prod Procede pour la fabrication continue de panneaux de particules ou de copeaux de bois, recouverts d'articles en nappe
FR2383007A1 (fr) * 1977-03-08 1978-10-06 Berstorff Gmbh Masch Hermann Installation pour la fabrication en continu de panneaux de particules, de panneaux de fibres ou analogues
EP0267516A2 (fr) * 1986-11-14 1988-05-18 Kurt Held Méthode et appareil pour la fabrication des panneaux de fibres de bois
EP0630725A1 (fr) * 1993-06-25 1994-12-28 Sulzer - Escher Wyss AG Dispositif pour la fabrication continue de panneaux de particules, panneaux de fibres ou autres
WO1995020473A1 (fr) * 1994-01-28 1995-08-03 Sunds Defibrator Industries Ab Procede de fabrication de panneaux lignocellulosiques

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322144A (en) * 1971-02-10 1973-07-04 Berstorff Gmbh Masch Hermann Equipment for the production of wood-wool boards
DE2110754A1 (de) * 1971-03-06 1972-09-21 Siempelkamp Gmbh & Co Anlage zur kontinuierlichen Herstellung von Spanplatten
US3942929A (en) * 1972-03-08 1976-03-09 Bison-Werke Bahre & Greten Gmbh & Co. Kg Continuously operating press
FR2312363A1 (fr) * 1975-05-28 1976-12-24 Feldmuehle Anlagen Prod Procede pour la fabrication continue de panneaux de particules ou de copeaux de bois, recouverts d'articles en nappe
FR2383007A1 (fr) * 1977-03-08 1978-10-06 Berstorff Gmbh Masch Hermann Installation pour la fabrication en continu de panneaux de particules, de panneaux de fibres ou analogues
EP0267516A2 (fr) * 1986-11-14 1988-05-18 Kurt Held Méthode et appareil pour la fabrication des panneaux de fibres de bois
EP0630725A1 (fr) * 1993-06-25 1994-12-28 Sulzer - Escher Wyss AG Dispositif pour la fabrication continue de panneaux de particules, panneaux de fibres ou autres
WO1995020473A1 (fr) * 1994-01-28 1995-08-03 Sunds Defibrator Industries Ab Procede de fabrication de panneaux lignocellulosiques

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1389512A3 (fr) * 2002-08-16 2005-12-07 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
DE10237534A1 (de) * 2002-08-16 2004-02-26 Voith Paper Patent Gmbh Vorrichtung zur Herstellung einer Materialbahn
EP1389510A2 (fr) 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1389511A2 (fr) * 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1389511A3 (fr) * 2002-08-16 2005-12-07 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
DE10237530A1 (de) * 2002-08-16 2004-02-26 Voith Paper Patent Gmbh Vorrichtung zur Herstellung von Materialbahnen
DE10237535A1 (de) * 2002-08-16 2004-03-04 Voith Paper Patent Gmbh Vorrichtung zur Herstellung von Materialbahnen
EP1389510A3 (fr) * 2002-08-16 2005-12-07 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1389512A2 (fr) * 2002-08-16 2004-02-18 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
EP1391279A2 (fr) * 2002-08-19 2004-02-25 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
DE10237826A1 (de) * 2002-08-19 2004-03-11 Voith Paper Patent Gmbh Vorrichtung zur Herstellung von Materialbahnen
EP1391279A3 (fr) * 2002-08-19 2005-12-07 Voith Paper Patent GmbH Appareil pour fabriquer des bandes
WO2004076142A2 (fr) * 2003-02-26 2004-09-10 Kronospan Technical Company Ltd. Presse et procede de production de panneaux
WO2004076142A3 (fr) * 2003-02-26 2009-03-26 Kronospan Tech Co Ltd Presse et procede de production de panneaux
EP2538115A2 (fr) 2006-06-22 2012-12-26 Toyota Jidosha Kabushiki Kaisha Procédé de fabrication d'un mécanisme pour convertir un mouvement de rotation en un mouvement linéaire et gabarit pour exécuter le procéde.
EP2538115A3 (fr) * 2006-06-22 2013-01-23 Toyota Jidosha Kabushiki Kaisha Procédé de fabrication d'un mécanisme pour convertir un mouvement de rotation en un mouvement linéaire et gabarit pour exécuter le procéde.
WO2011155869A1 (fr) * 2010-06-09 2011-12-15 Nikishichev Dmitry Borisovich Filtre-presse

Also Published As

Publication number Publication date
ATE204526T1 (de) 2001-09-15
DE59607528D1 (de) 2001-09-27
CH690757A5 (de) 2001-01-15
EP0776742B1 (fr) 2001-08-22

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