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EP0630725B1 - Dispositif pour la fabrication continue de panneaux de particules, panneaux de fibres ou autres - Google Patents

Dispositif pour la fabrication continue de panneaux de particules, panneaux de fibres ou autres Download PDF

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Publication number
EP0630725B1
EP0630725B1 EP93202303A EP93202303A EP0630725B1 EP 0630725 B1 EP0630725 B1 EP 0630725B1 EP 93202303 A EP93202303 A EP 93202303A EP 93202303 A EP93202303 A EP 93202303A EP 0630725 B1 EP0630725 B1 EP 0630725B1
Authority
EP
European Patent Office
Prior art keywords
pressure
equipment
drum
press
belt
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.)
Expired - Lifetime
Application number
EP93202303A
Other languages
German (de)
English (en)
Other versions
EP0630725A1 (fr
Inventor
Rolf Lehmann
Eugen Schnyder
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.)
De Pretto Escher Wyss SRL
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 EP0630725A1 publication Critical patent/EP0630725A1/fr
Application granted granted Critical
Publication of EP0630725B1 publication Critical patent/EP0630725B1/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
    • B27N3/26—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
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]

Definitions

  • the invention relates to a device for continuous Production of chipboard, fiberboard or Like. from a machined or frayed, with a pressure and / or thermosetting binders mixed, Starting material containing lignocellulose or cellulose with a heatable press drum and a endless, metallic over guide rollers Press belt, which the press drum on a part of its scope, forming a press section for the to be compressed, over the curing temperature of the Binder heated material, one the press belt in terms of area with a certain press pressure pressurizing device provided is, according to the earlier patent application No. 93810458.5.
  • This is used to form the chipboard or fiberboard starting material mixed with binder on the Belt in the press section between the belt and the inserted synchronously with this rotating press drum, where they are under pressure and temperature is compacted and gradually hardens before being removed removed from the press drum and into the desired one Plate size is cut.
  • the input side i.e. at the inlet of the starting material into the press zone Press roll provided, which is an almost line-like Press force with a press pressure of well over 100 bar on the tape.
  • Subsequent to this on the input side press roller follows a zone in which the pressing pressure is generated only by the belt tension and then another press roller with also almost linear force.
  • three to four rollers are provided, whereby the last roller in the shaping of the plates produced shortly before the end of the setting process.
  • WO 92/19809 describes a roller with a non-rotatable one Carrier and a drum jacket rotatable around this known to have a hydrostatic inner bearing Support elements is mounted to the deflection of a Reduce press drum.
  • the support elements are with Pressure medium supplied such that the supporting force is individually adjustable.
  • the invention has for its object the above mentioned disadvantages of the known arrangements avoid and in particular a facility for continuous production of chipboard, Fiberboard or the like. To create the constructive is simply constructed. With this facility, a more uniform thickness across the width of the produced Chipboard or fiberboard or a desired one Thickness profile achieved as well as a flat shape, and around a greater strength and a more homogeneous density and Hardness distribution over the thickness of the chipboard or Fiberboard will be reached, the material in the Press section in a simple way over the Curing temperature of the binder is heated, and whereby extreme bearing forces are avoided.
  • the pressing device is advantageously at least on the Entry side into the press section through a pressure shoe formed with hydraulic bearing surface, which with the Press drum a gradually narrowing inlet zone and a subsequent, to a certain extent with the pressing drum area approximately uniform pressing pressure and / or distance from the press drum forms, which ensures the uniformity of the Chipboard is further improved.
  • the invention is based on the in the accompanying figure illustrated embodiment of a system for Production of chipboard, fiberboard or the like described in more detail.
  • the system has a press drum 1 and a endless metallic press belt 2, for example a Steel strip, which covers part of the circumference of the Press drum 1 and over several deflecting rollers 3 continuously is guided so that it is over the looping part the press drum 1 with this one Press section P forms.
  • the press drum 1 and that Press belt 2 move synchronously in the press section P. together.
  • a chute 4 is machined or fiberized lignocellulosic or cellulosic, with material mixed with a thermosetting binder 5 by means of a guided over pulleys 30 Conveyor belt 29 on a guide surface 28 on the Top of the horizontal press belt 2 with a certain intended basis weight heaped up and runs on the press belt 2 in the Entrance zone E of the press line P.
  • the material introduced is a pressing pressure exposed and at the same time above the curing temperature of the binder heated.
  • the material is on the desired density is compressed and during the Lead time almost hardened.
  • the press drum 1 is non-rotatable with one clamped carrier 19 rotatable drum jacket 20 provided which with at least one support device 21 is supported against the carrier 19. Because there are no journal bearings are present and the forces on the clamping of the carrier 19 are derived, this is omitted Problem of compensating the bearing forces in this Arrangement complete.
  • the support devices 21 can in a known manner as a trailing hydrostatic, via lines 22 with pressure controllable pressure Supplied support elements are formed, which a exert adjustable supporting force on the jacket 20 and an almost frictionless bearing of the rotating Ensure drum jacket 20, or as others known support elements or as rolling elements.
  • the Support elements 21 can be used as a continuous support bar or as arranged side by side in the axial direction, individually controllable support elements be.
  • the sides of the press drum 1 are with Advantage through flexible e.g. bellows-type seals completed. Instead, it can be used as a support but also the entire one facing the press section P.
  • Half space between carrier 19 and drum jacket 10 or a partial space can be filled with pressurized fluid.
  • the pressure medium the support elements 21 is advantageous to one such temperature is heated so that the drum shell heated above the curing temperature of the binder and thus a sufficiently intense heating of the Material 5 in the press section P is guaranteed.
  • the wall thickness of the Jacket 20 of the press drum 1 significantly reduced e.g.
  • the reduction the wall thickness improves the heat transport and the Reduced energy consumption.
  • the surface of the pressure shoe facing the press belt 2 10 is advantageous with one or more hydrostatic bearing pockets 11, which about Pressure lines 12 with a lubricant under certain pressure, for example sufficient temperature-resistant pressure oil are fed.
  • This is the press belt 2 on the surface of the pressure shoe 10 hydrostatically supported and almost frictionless to slide over the pressure shoe surface.
  • About the in the storage pockets 11 set pressure can be simultaneously the pressing pressure required in the press section P. can be set. It is also an advantage that supplied pressure oil to a temperature above the Curing temperature of the binder e.g. on over 150 ° C, so that the press belt 2 when sliding over the bearing pockets 11 and that transported material 5 above the curing temperature is held.
  • a previous heating of the press belt 2 takes place in that the front 25 of the pressure shoe 10 has a preheating zone C, over which the belt 2 slides in front of the entry zone E, where these also with hydrostatic, over Lines 27 with hot pressurized oil bearing pockets 26 is provided.
  • the input side Pressure shoe 10 in the press section P downstream further analog pressure shoes 13, 14 and 15 can be provided, which are against each other connect practically without interruption.
  • the storage bags this downstream press shoes 13, 14 and 15 can with pressure oil of different pressure be fed so that a successive gradual reducing pressure, e.g. at the input pressure shoe 10 a pressing pressure of 30 - 50 bar, which in the downstream Pressure shoes gradually decrease to 2 - 3 bar.
  • the pressure shoes 10 and 13, 14, 15 can with respect the press drum 1 in a fixed position be arranged at a predetermined distance, or by means of Adjustment devices 23 against the press drum 1 to adjust the gap in the press section P in Pressing direction adjustable, e.g. manually using Spindles or automatically by means of electrical, magnetic, pneumatic or hydraulic Control. In the latter case, you can hydraulic pressure adjustable with pressure medium supplied pressure rooms can be movable, also the same pressure medium can be used as for the Supply of storage bags 11.
  • a shaping roller 6 be provided which of the already largely cured Chipboard 7 by exerting a higher pressure than that of the last pressure shoe 15 definitely gives and conditions the desired shape, for example the desired thickness profile. It is an advantage this form roller with a non-rotatably clamped Carrier 16 equipped rotatable jacket 17, which with one or more support elements 18 adjustable supporting force in the pressing direction against the Support 16 is supported.
  • the support element 18 can be a continuous support bar or it can be in the axial direction several support elements are provided side by side with which a certain thickness profile is produced can be.
  • the support elements 18 in a manner known per se as trailing hydrostatic Support elements with individually controllable pressing force be trained or in any other known manner, or the entire press-side half space h is as through Sealing strips 24 closed pressure chamber formed.
  • the shaping roller 6 can be adjusted in the drum circumferential direction to vary the curing distance.
  • the last pressure shoe can also be used as a shaped element serve, provided that this one sufficient for shaping Exerts pressure, without a forming roller.
  • deflection compensation roller can achieve a uniform and level press nip and therefore a uniform thickness and a flat shape of the chipboard produced.

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  • 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)

Claims (8)

  1. Dispositif pour la fabrication continue de panneaux de particules, de panneaux de fibres ou analogues, à partir d'un matériau de base (5) en particules ou en fibres, mélangés avec un liant durcissant sous pression et/ou chaleur, contenant de la lignocellulose ou de la cellulose, avec un tambour de compression chauffant (1) et une bande de compression métallique sans fin (2), guidée sur des rouleaux de renvoi, qui entourent le tambour de compression (1) sur une partie de son pourtour en formant un trajet de compression (P) pour le matériau à compacter, chauffé au-delà de la température de durcissement du liant, au moins un dispositif d'application (10, 13, 14, 15), sollicitant la bande de compression (1) sur sa surface par une pression d'application définie, étant prévu, caractérisé en ce que le tambour de compression (1) présente un support non-tournant (19) et une enveloppe (20) pouvant tourner relativement à celui-ci, supportée par au moins un élément d'appui (21) avec une force d'appui réglable, le dispositif d'appui étant un champ de palier hydrostatique (H) rempli d'un fluide sous pression qui est disposé au côté pression du tambour de compression et qui est réalisé sous forme de tronçon d'enceinte circulaire, séparé par des baguettes d'étanchéité (24) entre la surface d'enveloppe intérieure du tambour (20) et le support (19).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de compression est formé au moins au côté d'entrée dans le trajet de compression par un patin de compression (10) ayant une surface de palier hydraulique (11) qui forme avec le tambour de compression (1) une zone d'entrée (E) rétrécissant progressivement et une zone de trajet de compression (P) suivante, s'étendant sur une certaine périphérie du tambour de compression (1), avec une pression de compression et/ou un écart relativement au tambour de compression sensiblement constant.
  3. Dispositif selon la revendication 2, caractérisé en ce qu'il est disposé dans le trajet de compression (P), directement à la suite du patin de compression (13, 14, 15), une surface de palier hydraulique avec une pression d'application réglable.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce qu'il est disposé dans le trajet de compression (P) après le dernier patin de compression (15) un rouleau de façonnage (16) qui exerce sur la bande de compression (2) une pression plus élevée que le dernier patin de compression (15).
  5. Dispositif selon la revendication 4, caractérisé en ce que le rouleau de façonnage (6) présente un support non-tournant (16) et une enveloppe (17) pouvant tourner relativement à celui-ci, supportée par au moins un dispositif d'appui (18) avec une force d'appui réglable.
  6. Dispositif selon la revendication 5, caractérisé en ce que le rouleau de façonnage (6) présente plusieurs éléments d'appui (18) disposés les uns à côté des autres dans la direction de l'axe, avec une force d'appui réglable individuellement.
  7. Dispositif selon la revendication 5, caractérisé en ce que le rouleau de façonnage (6) est réglable en direction du déplacement de la bande de compression (2).
  8. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le rouleau de façonnage (6) présente à son côté de pression une enceinte partielle, notamment une demi-enceinte (h) rendue étanche par des baguettes d'étanchéité (24), pouvant être remplies par un fluide sous pression.
EP93202303A 1993-06-25 1993-06-25 Dispositif pour la fabrication continue de panneaux de particules, panneaux de fibres ou autres Expired - Lifetime EP0630725B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810458A EP0630726B1 (fr) 1993-06-25 1993-06-25 Dispositif pour la fabrication continue de panneaux de particles, panneaux de fibres ou autre

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP93810458A Division EP0630726B1 (fr) 1993-06-25 1993-06-25 Dispositif pour la fabrication continue de panneaux de particles, panneaux de fibres ou autre
EP93810458.5 Division 1993-06-25

Publications (2)

Publication Number Publication Date
EP0630725A1 EP0630725A1 (fr) 1994-12-28
EP0630725B1 true EP0630725B1 (fr) 1998-09-16

Family

ID=8214990

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93202303A Expired - Lifetime EP0630725B1 (fr) 1993-06-25 1993-06-25 Dispositif pour la fabrication continue de panneaux de particules, panneaux de fibres ou autres
EP93810458A Expired - Lifetime EP0630726B1 (fr) 1993-06-25 1993-06-25 Dispositif pour la fabrication continue de panneaux de particles, panneaux de fibres ou autre

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP93810458A Expired - Lifetime EP0630726B1 (fr) 1993-06-25 1993-06-25 Dispositif pour la fabrication continue de panneaux de particles, panneaux de fibres ou autre

Country Status (5)

Country Link
US (1) US5527422A (fr)
EP (2) EP0630725B1 (fr)
DE (2) DE59308992D1 (fr)
ES (2) ES2121977T3 (fr)
RU (2) RU2066634C1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443763A1 (de) * 1994-12-08 1996-06-13 Hymmen Theodor Gmbh Kontinuierlich arbeitende Presse zum Herstellen von Holzwerkstoffplatten
FI98554C (fi) * 1995-08-18 1997-07-10 Valmet Corp Menetelmä taipumasäädettävän telan kuormituksen säädössä ja taipumasäädettävä tela
CH690757A5 (de) * 1995-11-29 2001-01-15 Pretto De Escher Wyss Srl Einrichtung zur Herstellung von Spanplatten oder Faserplatten.
DE19828156A1 (de) * 1998-06-24 1999-12-30 Voith Sulzer Papiertech Patent Vorrichtung zum Glätten einer Materialbahn
NL1010620C2 (nl) * 1998-11-20 2000-05-23 Klieverik Heli Bv Laminator.
JP2003102770A (ja) * 2001-09-28 2003-04-08 Johnson & Johnson Kk シール装置
DE10237535A1 (de) * 2002-08-16 2004-03-04 Voith Paper Patent Gmbh Vorrichtung zur Herstellung von Materialbahnen
DE10348595A1 (de) * 2003-10-20 2005-05-19 Voith Paper Patent Gmbh Schuhwalze
US8287266B2 (en) * 2006-06-16 2012-10-16 GKN Aerospace Services Structures, Corp. Device for performing consolidation and method of use thereof
JP5017148B2 (ja) * 2008-03-06 2012-09-05 ユニ・チャーム株式会社 加工装置
RU2392113C1 (ru) * 2009-04-03 2010-06-20 Общество с ограниченной ответственностью "Деревообрабатывающий завод "Технопарк-Сосново" Камера для термообработки изделий из древесины
CN101531025B (zh) * 2009-04-15 2010-09-29 敦化市亚联机械制造有限公司 带有柔性热压板的连续辊压机
EP2524809A1 (fr) * 2011-05-20 2012-11-21 KBA-NotaSys SA Ink wiping system for an intaglio printing press
EP2524805A1 (fr) * 2011-05-20 2012-11-21 KBA-NotaSys SA Système d'essuyage d'encre pour presse d'impression en creux
CN105599068B (zh) * 2015-12-21 2018-07-06 北京林业大学 一种辊压热压机、单板接长系统及单板接长方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1374001A (fr) * 1963-10-30 1964-10-02 Ts P Konstrouktorskoje Bureau Dispositif pour la fabrication des matériaux de construction stratifiés destinés principalement à la décoration et au garnissage
GB1193156A (en) * 1967-09-15 1970-05-28 Ashihara Tekkosho Kk Device for Continuously Pressure Treating Belt-like Articles
DE2549560C3 (de) * 1975-11-05 1980-01-17 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Kontinuierlich arbeitende Spanplattenpresse
CA1296557C (fr) * 1986-04-09 1992-03-03 Josef Pav Systeme de rouleaux destines a une calandre ou a des machines similaires
FI75407C (fi) * 1986-11-21 1988-06-09 Valmet Oy Foerfarande i en boejningsreglerad vals och valsanordning foer tillaempning av foerfarandet.
DE3800513A1 (de) * 1988-01-11 1989-07-27 Baehre & Greten Kontinuierlich arbeitende presse
US4992133A (en) * 1988-09-30 1991-02-12 Pda Engineering Apparatus for processing composite materials
US4852229A (en) * 1988-10-11 1989-08-01 Beloit Corporation Self-loading controlled deflection roll
DE4041850A1 (de) * 1990-12-24 1992-06-25 Held Kurt Kontinuierlich arbeitende doppelbandpresse
CA2086007C (fr) * 1991-05-03 1999-04-13 Rolf Lehmann Cylindre a deformation reglable et utilisation de celui-ci
US5242361A (en) * 1992-11-17 1993-09-07 Beloit Technologies, Inc. Roller mechanism for axially locating the shell of a self-loading controlled deflection roll

Also Published As

Publication number Publication date
RU94028279A (ru) 1996-06-27
DE59308993D1 (de) 1998-10-22
ES2121931T3 (es) 1998-12-16
ES2121977T3 (es) 1998-12-16
RU2067930C1 (ru) 1996-10-20
EP0630726B1 (fr) 1998-09-16
US5527422A (en) 1996-06-18
DE59308992D1 (de) 1998-10-22
EP0630726A1 (fr) 1994-12-28
EP0630725A1 (fr) 1994-12-28
RU2066634C1 (ru) 1996-09-20

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