EP1084819B1 - Presse à fonctionnement continu - Google Patents

Presse à fonctionnement continu Download PDF

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Publication number
EP1084819B1
EP1084819B1 EP00118838A EP00118838A EP1084819B1 EP 1084819 B1 EP1084819 B1 EP 1084819B1 EP 00118838 A EP00118838 A EP 00118838A EP 00118838 A EP00118838 A EP 00118838A EP 1084819 B1 EP1084819 B1 EP 1084819B1
Authority
EP
European Patent Office
Prior art keywords
press
pressure
area
pressure area
continuously operating
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
EP00118838A
Other languages
German (de)
English (en)
Other versions
EP1084819A2 (fr
EP1084819A3 (fr
Inventor
Thomas Biermann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1084819A2 publication Critical patent/EP1084819A2/fr
Publication of EP1084819A3 publication Critical patent/EP1084819A3/fr
Application granted granted Critical
Publication of EP1084819B1 publication Critical patent/EP1084819B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B30B5/06—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 co-operating with another endless band
    • B30B5/065—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 co-operating with another endless band using anti-friction means for the pressing band
    • B30B5/067—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 co-operating with another endless band using anti-friction means for the pressing band using anti-friction roller means

Definitions

  • the invention relates to a continuously operating press, preferably for the production and / or coating of chipboard, fiberboard or The like. Pressgut, with a lower and an upper press plate, one around lower press plate and an endless one guided around the upper press plate Press belt and an arrangement for building and maintaining a Lubricant film between the facing press plate surfaces and the associated press belts, the press over the working length a high-pressure area on the input side, a Press medium pressure area and an outlet-side press low pressure area having.
  • EP 01 28 968 discloses a press known as a hydrodynamic press, which can be found in the Practice has already proven itself many times. It not only enables production various plate-shaped products in continuous operation, but is also characterized by economy, high at the same time Accuracies and the possibility of using an input coating process To perform thermoset films.
  • the principle of operation in the the above-mentioned patent disclosed continuous press stipulates that the length of the entire press area of the press seen the pressure in the inlet area steeply to a maximum value of for example, increases 25 bar, then in a medium pressure range descend parabolically and finally up in a low pressure area to be kept at a level of, for example, 5 bar. Furthermore finds the greatest warming of the in the first third of the total press length Pressed material to a reaction temperature of that contained in the pressed material Binder of, for example, 180 ° Celsius or higher instead.
  • the greatest pressure is in the first third of the press on the inlet side exerted on the pressed material and the greatest amount of heat in the pressed material transfer.
  • the conventional one known from the prior art Isobaric lubricant film with a continuous press used Thickness of 0.3 to 0.5 mm between the press belts and the associated ones upper and lower press plates thus has particularly in the high pressure area to fulfill a double task for the press.
  • the transfer high pressures in connection with a large heat transfer through the lubricant film makes a high on conventional presses Amount of energy required, in addition, increase those to be met Framework conditions for thermal conductivity and pressure transfer the wear of the press oil used.
  • the object of the present invention is therefore a continuously working Develop the press of the generic type so that the Use of energy and operating costs when operating such presses reduced and the service life of the oils of the presses increased become.
  • the main solution is that in the press entrance Area across the full width and essentially the length of the Press high pressure area between the press plates and the respective associated press belt a roller carpet is arranged.
  • the diameter of the rollers should be as small as possible (for Example in the range 12 mm to 20 mm) to ensure even pressure on the steel belts and thus on the material to be pressed, since smaller rolls the distance between the successive rows of rolls stain and result in an almost even pressure application.
  • the as a result of the even application of pressure the surface finish is better and a longer service life of the steel press belts.
  • roller carpet in its press Length extension seen in the working direction of the press in addition at least in a part of the area facing the high pressure area Section of the medium pressure range is arranged. Because in this area relatively high pressure values in the medium pressure range expansion of the roller carpet in this area enables one additional energy savings during press operation.
  • the arrangement for the roller carpet then immediately follows Structure and maintenance of the lubricant film between the mutually facing press plate surfaces and the associated Press belts.
  • the u. a. as a calibration area serves for the material to be pressed, the internal pressure in the material to be pressed decreases with the Hardening of the binder towards zero, the temperature in the material to be pressed held upright by the press or lowered in the calibration range in order to to cool the material to be pressed.
  • the design according to the invention enables the working press both a significant energy saving in the Achieve press operation and a reduction in manufacturing tolerances up to +/- 6/100 mm as well as the possibility of the input direct coating process perform with thermoset films
  • the drawing shows schematically a longitudinal section through an inventive continuously working press, with all insignificant Components have been omitted for the sake of clarity.
  • the continuous press shown - preferably for Manufacture and / or coating of chipboard, fiberboard or the like.
  • Press material - has a lower press plate 1 and one arranged above it and preferably movable press plate 2. Between the top and lower press plate runs an endless upper press belt 3 and a endless lower press belt 4.
  • the press belts 3, 4 are each in front area introduced by deflection rollers 5, 6 in the press nip 7 and at the end of the press nip 7 for each of the upper and lower press belt existing drive drums 8 and 9 on the back of the respective lower press plate 1 and the upper press plate 2 out.
  • a roller carpet 13 is arranged in the front Area 10 of the continuously operating press.
  • the front area 10 is essentially identical to the high pressure area the press, in the press material passing through the press nip 7 a pressing pressure of, for example, 25 bar is applied.
  • a pressing pressure of, for example, 25 bar is applied.
  • To the front area 10 closes a medium pressure area 11 and a low pressure area 12, in both areas between the press belts 3, 4 and the press plates 1, 2 applied a lubricant film which the Friction between press plates and press belts is reduced and at the same time which transmits low pressures in this area and the control the supply of heat or cold to the pressed material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (4)

  1. Presse travaillant en continu, de préférence pour la fabrication et/ou le revêtement de panneaux d'agglomérés, de panneaux de fibres ou d'un article à presser de ce type, avec des plateaux de pressage inférieur (1) et supérieur (2), des rubans de pressage (4, 3) sans fin dirigés autour du plateau de pressage inférieur (1) et autour du plateau de pressage supérieur (2), la presse comportant sur sa longueur de travail une zone de haute pression de pressage (10), une zone de moyenne pression de pressage (11) et une zone de basse pression de pressage (12), caractérisée en ce que, dans la zone de haute pression (10) du côté d'entrée de la presse, un tapis roulant (13) est disposé sur toute la largeur et sensiblement sur la longueur de la zone de haute pression de pressage (10) entre les plateaux de pressage (1, 2) et les rubans de pressage (3, 4) respectifs associés, et en ce qu'un aménagement constitue et maintient un film de lubrifiant entre les surfaces de plateaux de pressage se faisant face et le ruban de pressage respectivement associé dans la zone de moyenne pression de pressage (11) et la zone de basse pression de pressage (12).
  2. Presse travaillant en continu selon la revendication 1, caractérisée en ce que le tapis roulant (13) est disposé dans son étendue en longueur dans le sens de travail de la presse en outre au moins dans une zone partielle de la section de la zone de moyenne pression (11) tournée vers la zone de haute pression (10).
  3. Presse travaillant en continu selon la revendication 1 ou 2, caractérisée en ce que le tapis roulant (13) comporte des rouleaux d'acier disposés côte à côte.
  4. Presse travaillant en continu selon la revendication 1, caractérisée en ce que l'aménagement pour la constitution et le maintien du film de lubrifiant entre les surfaces de plateaux de pressage (1, 2) se faisant face et les rubans de pressage (3, 4) respectivement associés se raccorde immédiatement au tapis roulant (13) du côté d'entrée de la presse.
EP00118838A 1999-09-15 2000-08-31 Presse à fonctionnement continu Expired - Lifetime EP1084819B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944022 1999-09-15
DE19944022A DE19944022C2 (de) 1999-09-15 1999-09-15 Kontinuierlich arbeitende Presse

Publications (3)

Publication Number Publication Date
EP1084819A2 EP1084819A2 (fr) 2001-03-21
EP1084819A3 EP1084819A3 (fr) 2001-12-12
EP1084819B1 true EP1084819B1 (fr) 2004-01-21

Family

ID=7921986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118838A Expired - Lifetime EP1084819B1 (fr) 1999-09-15 2000-08-31 Presse à fonctionnement continu

Country Status (2)

Country Link
EP (1) EP1084819B1 (fr)
DE (2) DE19944022C2 (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2922151A1 (de) * 1979-05-31 1980-12-11 Sandvik Conveyor Gmbh Doppelbandpresse
FI75301C (fi) * 1980-11-14 1988-06-09 Mets Nv De Kontinuerligt fungerande press.
DE3119529C2 (de) * 1981-05-16 1984-12-06 G. Siempelkamp Gmbh & Co, 4150 Krefeld Kontinuierlich arbeitende Presse zum Verpressen von Spanplattenbahnen, Faserplattenbahnen u. dgl. Preßgutbahnen
DE3123291C2 (de) * 1981-06-12 1993-04-15 Held, Kurt, 7218 Trossingen Rollenbett an einer kontinuierlich arbeitenden Presse
EP0128968B1 (fr) * 1983-06-16 1986-09-24 Constructiewerkhuizen De Mets N.V. Presse à travail en continu
DE3424599A1 (de) * 1984-07-04 1986-01-09 Fa. Theodor Hymmen, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3712634A1 (de) * 1987-04-14 1988-11-03 Baehre & Greten Kontinuierlich arbeitende presse
DE3914109A1 (de) * 1989-04-28 1990-10-31 Siempelkamp Gmbh & Co Pressanlage fuer das kontinuierliche pressen von pressgutbahnen
DE4010308C2 (de) * 1990-03-30 1995-04-06 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse
DE4110678C2 (de) * 1991-04-03 1998-09-17 Siempelkamp Gmbh & Co Verfahren zum Betrieb einer Durchlaufpresse im Zuge der Herstellung von Spanplatten, Faserplatten, Laminatplatten u. dgl. sowie für das Verfahren eingerichtete Durchlaufpresse
DE4126717C1 (en) * 1991-08-13 1992-10-15 G. Siempelkamp Gmbh & Co, 4150 Krefeld, De Press installation for continuous mfr. of chip-or fibreboard - has lubricator on inlet side in region of roller circulating mechanism, lubricating rollers prior to their contact press bands
DE4414957C2 (de) * 1994-04-28 1996-04-25 Baehre & Greten Kontinuierlich arbeitende Doppelband-Presse
DE19858152A1 (de) * 1998-12-16 2000-06-21 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse und Verfahren zur Herstellung von Holzwerkstoffplatten und Kunsstoffplatten

Also Published As

Publication number Publication date
EP1084819A2 (fr) 2001-03-21
DE19944022C2 (de) 2003-07-24
DE50005070D1 (de) 2004-02-26
EP1084819A3 (fr) 2001-12-12
DE19944022A1 (de) 2001-04-19

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