EP1181139A1 - Methode und vorrichtung zur kontinuierlichen herstellung von profilierten, ligno-zellulose enthaltendentafeln oder streifen - Google Patents

Methode und vorrichtung zur kontinuierlichen herstellung von profilierten, ligno-zellulose enthaltendentafeln oder streifen

Info

Publication number
EP1181139A1
EP1181139A1 EP00906822A EP00906822A EP1181139A1 EP 1181139 A1 EP1181139 A1 EP 1181139A1 EP 00906822 A EP00906822 A EP 00906822A EP 00906822 A EP00906822 A EP 00906822A EP 1181139 A1 EP1181139 A1 EP 1181139A1
Authority
EP
European Patent Office
Prior art keywords
strip
board
product
profile
roll
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Withdrawn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
EP00906822A
Other languages
English (en)
French (fr)
Inventor
N. Lennart Eriksson
Göran Lundgren
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.)
Valmet AB
Original Assignee
Valmet Fibertech AB
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 Valmet Fibertech AB filed Critical Valmet Fibertech AB
Publication of EP1181139A1 publication Critical patent/EP1181139A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/086Presses with means for extracting or introducing gases or liquids in the mat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/18Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/24Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Definitions

  • the present invention relates to a method of continuously producing profiled lignocellulose-containing board or strip-like products according to the preamble of claim 1 , and to an arrangement for carrying out the method in accordance with the preamble of claim 7.
  • a common way of producing, e.g., profiled structural elements such as skirting boards, cornices, window linings, architraving or furniture components is to plane or mill the desired profile either from solid wood or from fibreboard, preferably MDF (Medium Density Fibreboard).
  • MDF Medium Density Fibreboard
  • the unsuitability of using this technique to mill such products from medium density fibreboard is obvious. Firstly, it would involve a production chain and transport chain consisting of many expensive inter- mediate steps and operations and would mean that the profiled product would have different densities in cross-section and therewith absorb different amounts of paint or varnish at discrete locations. The milling operation would also result in high material losses. For instance, more than 50% of the starting material can be lost when milling products to pronounced profile depths.
  • a standard example of this production chain may be as follows: Dried and glue-coated fibres are produced in the MDF plant and shaped into mats which are pressed into boards which are then edge-trimmed and ground. Losses are experienced in the form of edge trim and dust from the grinding operations.
  • the next link in the production chain consists in the transportation of board to the production unit for the profiled products.
  • the medium density fibreboards are sawn into strips which form the starting blanks for the profiled products, these starting blanks being milled and ground as well as lacquered with layers of paint or varnish or are coated with some type of film for priming or decoration purposes.
  • the object of the present invention is to avoid the drawbacks associated with the aforesaid production process in an economical fashion and, instead, to provide a continuous process up to the finished profiled product with as little mate- rial loss as possible.
  • This object is achieved in accordance with the invention having the characteristic features set forth in the following Claims.
  • the illustrated plant is based on the plant illustrated in SE 502 272, which describes a continuous steam injection process.
  • Disintegrated, dried and glue- coated lignocellulosic fibre material is delivered to a forming station 1 and there formed into a fibre mat 3 which is fed into a steam injection press 2.
  • the fibre mat is pressed in the press into a board product 4 which is hardened, or cured, to an extent at which the board is solid and has a given mechanical strength.
  • the surfaces are further densified in a surface densifying unit 5. This process results in board that has a dense outer surface.
  • the plant is designed for the production of pro- filed board or strip products in one and the same two-step process.
  • a milling or cutting roll 6 is arranged between the forming station 1 and the steam injection press 2.
  • the cutting roll 6 functions to impart a profiled surface structure to the lignocellulosic, glue-coated starting material in the form of the fibre mat 3 that has a density of between 20 and 200 kg/m 3 .
  • the diameter of the cutting roll 6 varies across its width.
  • the profile imparted to the cross-section of the mat will coincide essentially with the cross-section of the finished product.
  • the profiled mat 3, which may be precompressed, is transported continuously into the steam injection press 2.
  • This press includes a profiled steam roll 7 that has the same profile as the cutting roll 6.
  • the mat 3 is compressed here and hardened to form a board or strip 4 that has the intended cross-section, by injecting saturated or superheated steam into the mat.
  • the surface layers are further compressed in a second step, by allowing the board or the strip 4 to pass through the surface densifying unit 5 that includes one or more hot, compression roll-pairs 8 that have the same geometry as the steam roll 7 but a smaller cross-sectional area so as to obtain the desired surface compression.
  • the drawing shows the cross-section 9 of the formed fibre mat 3 prior to profiling the mat.
  • the cross-section 10 downstream of the cutting roll 6 illustrates the profile of the upper surface. Downstream of the steam injection press 2, the board 4 pressed therein will have the cross-section 11 , and the surface sheet in the cross-section 12 downstream of the surface densifying unit 5 will have a higher density but the same profile.
  • the underside of the board can be profiled with the same technique.
  • a cutting roll 6 is also arranged on the other side of the fibre mat 3 and the lower rolls 7 and 8 in the steam injection press 2 and the surface densify- ing unit 5 are provided with the same surface profile as the lower cutting roll across the respective widths thereof.
  • the board or the strip produced in the first step i.e. in the steam injection press
  • the board or the strip produced in the first step can be divided into several narrower strips in a continuous process, these narrower strips then being passed through one or more hot roll pairs 8 in the surface densifying unit 5. Separation of the board or strip into a plurality of strips may be effected by sawing, for instance.
  • the invention enables the production of profiled lignocellulose-containing products in the form of boards and strips of uniform density throughout the whole of their cross-section and with dense surfaces that absorb equal amounts of paint over the entire product in a rapid and continuous process. Furthermore, this is achieved in the absence of losses in starting material, apart from the small losses that occur when sawing the board or strip.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
EP00906822A 1999-02-01 2000-01-31 Methode und vorrichtung zur kontinuierlichen herstellung von profilierten, ligno-zellulose enthaltendentafeln oder streifen Withdrawn EP1181139A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9900331A SE515273C2 (sv) 1999-02-01 1999-02-01 Sätt och anordning för kontinuerlig framställning av profilerade lignocellulosahaltiga skiv- eller strängprodukter
SE9900331 1999-02-01
PCT/SE2000/000186 WO2000044540A1 (en) 1999-02-01 2000-01-31 Method and arrangement for the continuous manufacture of profiled lignocellulose-containing board or strip-like products

Publications (1)

Publication Number Publication Date
EP1181139A1 true EP1181139A1 (de) 2002-02-27

Family

ID=20414319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00906822A Withdrawn EP1181139A1 (de) 1999-02-01 2000-01-31 Methode und vorrichtung zur kontinuierlichen herstellung von profilierten, ligno-zellulose enthaltendentafeln oder streifen

Country Status (12)

Country Link
EP (1) EP1181139A1 (de)
JP (1) JP2002535174A (de)
KR (1) KR20010101696A (de)
CN (1) CN1100650C (de)
AU (1) AU2837900A (de)
CA (1) CA2356893A1 (de)
CZ (1) CZ20012762A3 (de)
NO (1) NO20013729D0 (de)
NZ (1) NZ513744A (de)
PL (1) PL349842A1 (de)
SE (1) SE515273C2 (de)
WO (1) WO2000044540A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10259336A1 (de) * 2002-12-18 2004-07-08 Saint-Gobain Isover G+H Ag Geformte Dämmplatte aus Mineralwolle
CA2721390C (en) 2008-10-21 2012-04-03 Uniboard Canada Inc. Embossed monolayer particleboards and methods of preparation thereof
DE102011007336A1 (de) * 2011-04-13 2013-04-25 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren zum Betreiben einer Anlage und Vorrichtung zur Beleimung von Spänen, Fasern oder faserähnlichem Material im Zuge der Herstellung von Werkstoffplatten
EP2805801B1 (de) * 2013-05-24 2020-10-21 Faurecia Interieur Industrie Verfahren zur Verarbeitung eines Furnierholzes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179986A (en) * 1990-11-15 1993-01-19 Masonite Corporation Method for improving fiberboard mat moldability
SE502272C2 (sv) * 1994-01-28 1995-09-25 Sunds Defibrator Ind Ab Förfarande för framställning av lignocellulosahaltiga skivor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0044540A1 *

Also Published As

Publication number Publication date
NO20013729L (no) 2001-07-30
KR20010101696A (ko) 2001-11-14
CN1338984A (zh) 2002-03-06
WO2000044540A1 (en) 2000-08-03
SE9900331D0 (sv) 1999-02-01
SE515273C2 (sv) 2001-07-09
AU2837900A (en) 2000-08-18
NZ513744A (en) 2003-02-28
CN1100650C (zh) 2003-02-05
PL349842A1 (en) 2002-09-23
CZ20012762A3 (cs) 2002-04-17
JP2002535174A (ja) 2002-10-22
NO20013729D0 (no) 2001-07-30
CA2356893A1 (en) 2000-08-03
SE9900331L (sv) 2000-08-02

Similar Documents

Publication Publication Date Title
EP2344309B1 (de) Gefertigtes holzprodukt und fertigungsverfahren dafür
US4751131A (en) Waferboard lumber
US4364984A (en) Surfaced oriented strand board
Maloney The family of wood composite materials
EP1915253B1 (de) Leichte mehrschicht holzwerkstoffplatte
US7314585B2 (en) Method of manufacturing contoured consolidated cellulosic panels with variable basis weight
US7264462B2 (en) Consolidated cellulosic article having increased thickness and target face density and apparatus and method for manufacturing same
US20090042019A1 (en) Particle board
GB2248246A (en) Reinforced fiberboard
EP3778220B1 (de) Anlage und verfahren zur herstellung einer holzfaserplatte
EP2367989A2 (de) Baueinheiten für möbel und verfahren zur herstellung solcher baueinheiten
US6743318B2 (en) Method of manufacturing consolidated cellulosic panels with contoured surfaces and variable basis weight
WO2010082137A1 (en) Manufactured wood product and methods for producing the same
EP3784456B1 (de) Faserplatte und verfahren zur herstellung einer faserplatte
US4405542A (en) Method for the production of a composite material
CA2027848A1 (en) Method for the manufacture of shaped parts
EP1200236A1 (de) Verfahren und vorrichtung zur herstellung von ligno-zellulosehaltigen plattenmaterialien
EP1181139A1 (de) Methode und vorrichtung zur kontinuierlichen herstellung von profilierten, ligno-zellulose enthaltendentafeln oder streifen
EP0259069B1 (de) Holzfaserbauholz
PL207257B1 (pl) Sposób wytwarzania elementu budowlanego z płytą nośną z tworzywa drzewnego
DE4201201C2 (de) Ebenes oder gekrümmtes Halbzeug oder Fertigprodukt aus Holzwerkstoff für die Anwendung im Möbel- oder Innenausbau, in der Verpackungsmittelherstellung, in der Holzwarenherstellung oder im Hochbau mit einer Wanddicke zwischen 2mm und 1000 mm und Verfahren zu seiner Herstellung
USRE34283E (en) Waferboard lumber
RU2781987C2 (ru) Древесноволокнистая плита и способ формирования древесноволокнистой плиты
EP2452792A1 (de) Platte und Verfahren zur Herstellung von Platten
EP2367666A2 (de) Flexibles produkt und herstellungsverfahren dafür

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010903

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20050802