EP0630726B1 - Device for the continuous production of particle boards, fibre boards or the like - Google Patents

Device for the continuous production of particle boards, fibre boards or the like Download PDF

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Publication number
EP0630726B1
EP0630726B1 EP93810458A EP93810458A EP0630726B1 EP 0630726 B1 EP0630726 B1 EP 0630726B1 EP 93810458 A EP93810458 A EP 93810458A EP 93810458 A EP93810458 A EP 93810458A EP 0630726 B1 EP0630726 B1 EP 0630726B1
Authority
EP
European Patent Office
Prior art keywords
pressure
shoe
equipment
drum
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
EP93810458A
Other languages
German (de)
French (fr)
Other versions
EP0630726A1 (en
Inventor
Eugen Schnyder
Rolf Lehmann
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
Priority to EP93202303A priority Critical patent/EP0630725B1/en
Priority to DE59308993T priority patent/DE59308993D1/en
Priority to ES93202303T priority patent/ES2121931T3/en
Priority to EP93810458A priority patent/EP0630726B1/en
Priority to DE59308992T priority patent/DE59308992D1/en
Priority to ES93810458T priority patent/ES2121977T3/en
Application filed by De Pretto Escher Wyss SRL filed Critical De Pretto Escher Wyss SRL
Priority to US08/249,517 priority patent/US5527422A/en
Priority to RU9494022263A priority patent/RU2066634C1/en
Priority to RU94028279/15A priority patent/RU2067930C1/en
Publication of EP0630726A1 publication Critical patent/EP0630726A1/en
Application granted granted Critical
Publication of EP0630726B1 publication Critical patent/EP0630726B1/en
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 according to the Preamble of claim 1.
  • EP-A-0 195 128, EP-A-0 324 070, DE-A-25 49 560 or Arrangements are known, for example, from DE-A-38 00 513, which serve to generate waste material in large quantities, such as wood waste, sugarcane bagasse, cotton stalks or the like. to chipboard or fiberboard or Like.
  • the lignocellulose and / or Cellulosic starting material machined or in fibers dissolved and in cleaned and largely dried Form mixed with a suitable binder.
  • a suitable binder As particularly suitable for binding cellulose fibers and Forming solid particle boards (Medium Density Fiber Board) copolymers of sodium lignosulphonate, Melamine and formaldehyde have been proven to gradually harden at a temperature of around 130 ° C.
  • the input side i.e. at the Entry of the starting material into the pressing zone Press roll provided, which is an almost line-like Press force with a press pressure of well over 100 bar exercises on the tape.
  • Press roll follows a zone in which the press pressure is generated only by the band tension, and then another press roller with also almost line-shaped application of force.
  • the last roller being the Shaping of the plates produced shortly before the end of the Setting process serves.
  • the invention is based on a device that from the FR-A-13 74 001 is known.
  • This facility is a pressure shell with hydraulic, with rubber seals sealed against the outside, supplied with pressure oil Pressure chambers are provided with which a pressing force is exerted the press drum is exercised since the rubber seals only endure limited pressure and that the Seals at higher speeds a cause inadmissible friction and a quick Subject to wear.
  • the invention has for its object the above mentioned disadvantages of the prior art avoid and in particular to create a facility in the production of chipboard, fiberboard or the like a pressing pressure continuously in the pressing section is maintained, with avoidance or reduction a pressure peak on the input side and interruptions, for greater strength and a more homogeneous density and Hardness distribution over the thickness of the chipboard or
  • the material in the Press section in a simple way over the Curing temperature of the binder is heated, wherein extreme bearing forces can be avoided, and at higher belt speeds a friction and low-wear run achieved with higher pressing force becomes.

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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)

Description

Die Erfindung betrifft eine Einrichtung gemäss dem Oberbegriff des Anspruches 1.The invention relates to a device according to the Preamble of claim 1.

Aus EP-A-0 195 128, EP-A-0 324 070, DE-A-25 49 560 oder DE-A-38 00 513 sind beispielsweise Anordnungen bekannt, die dazu dienen, in grossen Mengen anfallendes Abfallmaterial, wie Holzabfälle, Zuckerrohr-Bagasse, Baumwollstengel oder dgl. zu Spanplatten oder Faserplatten oder dgl. zur Verwendung in der Bau- oder Möbelindustrie zu verarbeiten. Dazu wird das lignocellulose- und/oder cellulosehaltige Ausgangsmaterial zerspant oder in Fasern aufgelöst und in gereinigter und weitgehend getrockneter Form mit einem geeigneten Bindemittel versetzt. Als besonders geeignet zur Bindung von Cellulosefasern und zur Bildung fester Spanplatten (Medium Density Fibre Board) haben sich beispielsweise Copolymere von Natriumlignosulphonat, Melamin und Formaldehyd erwiesen, welche bei einer Temperatur von etwa 130°C allmählich aushärten.From EP-A-0 195 128, EP-A-0 324 070, DE-A-25 49 560 or Arrangements are known, for example, from DE-A-38 00 513, which serve to generate waste material in large quantities, such as wood waste, sugarcane bagasse, cotton stalks or the like. to chipboard or fiberboard or Like. For use in the construction or furniture industry too to process. For this, the lignocellulose and / or Cellulosic starting material machined or in fibers dissolved and in cleaned and largely dried Form mixed with a suitable binder. As particularly suitable for binding cellulose fibers and Forming solid particle boards (Medium Density Fiber Board) copolymers of sodium lignosulphonate, Melamine and formaldehyde have been proven to gradually harden at a temperature of around 130 ° C.

Zur Bildung der Spanplatten oder Faserplatten wird das mit Bindemittel vermischte Ausgangsmaterial auf dem Band in die Pressstrecke zwischen dem Band und der synchron mit diesem umlaufenden Presstrommel eingebracht, wo es unter Druck- und Temperatureinwirkung verdichtet wird und allmählich aushärtet, bevor es von der Presstrommel abgenommen und in die gewünschte Plattengrösse zerschnitten wird.To form the chipboard or fiberboard, that is with Binder mixed starting material on the belt in the Press section between the belt and the one in synchronism with it encircling press drum introduced where it is under pressure and The effect of temperature is compressed and gradually hardens before it is removed from the press drum and in the desired plate size is cut.

Bei bekannten Anordnungen ist eingangsseitig, d.h. am Einlauf des Ausgangsmaterials in die Presszone eine Presswalze vorgesehen, welche eine nahezu linienartige Presskraft mit einem Pressdruck von erheblich über 100 bar auf das Band ausübt. Anschliessend an diese eingangsseitige Presswalze folgt eine Zone, in welcher der Pressdruck lediglich durch die Bandspannung erzeugt wird, und anschliessend eine weitere Presswalze mit ebenfalls nahezu linienförmiger Kraftausübung. In der Regel sind hierbei drei bis vier Walzen vorgesehen, wobei die letzte Walze der Formgebung der hergestellten Platten kurz vor dem Ende des Abbindevorganges dient. Nachteilig an diesen vorbekannten Verfahren ist, dass infolge der schlagartigen Druckbeanspruchung und nachfolgenden Zonen geringen Druckes wegen des Mehrfach-Zurückfederns der Fasern eine ungenügende Festigkeit, ein unerwünschtes Dichteprofil und eine ungünstige Härteverteilung über die Dicke der Platte resultiert sowie die Bindemittelmenge unnötig gross gewählt werden muss. So weisen die Oberseite und die Unterseite der so erzeugten Platten eine relativ grosse Härte in einer dünnen Oberflächenzone auf, während im Inneren der Platte weichere mit mittelharten Zonen abwechseln. Der Zusammenhalt der Platten ist daher häufig ungenügend. Zudem werden beim Abschleifen der Oberflächen zwecks Glättung oder Profilierung die harten Oberflächenzonen weggeschliffen, so dass die bearbeiteten Platten an ihrer Oberfläche eine wechselnde und teilweise ungenügende Härte aufweisen.In known arrangements, the input side, i.e. at the Entry of the starting material into the pressing zone Press roll provided, which is an almost line-like Press force with a press pressure of well over 100 bar exercises on the tape. Following this on the input side Press roll follows a zone in which the press pressure is generated only by the band tension, and then another press roller with also almost line-shaped application of force. Usually are here three to four rollers are provided, the last roller being the Shaping of the plates produced shortly before the end of the Setting process serves. A disadvantage of these previously known The procedure is that due to the sudden pressure stress and subsequent zones due to low pressure the multiple springback of the fibers is insufficient Strength, an undesirable density profile and a unfavorable distribution of hardness over the thickness of the plate results and the amount of binder chosen unnecessarily large must become. So the top and bottom of the plates produced a relatively high hardness in one thin surface zone while inside the plate Alternate softer with medium-hard zones. Of the The cohesion of the plates is therefore often insufficient. In addition when sanding the surfaces for smoothing or profiling the hard surface zones ground away, so that the machined panels are at their The surface has a changing and sometimes insufficient hardness exhibit.

Wie etwa in DE-A-38 00 513 beschrieben, ist es bereits versucht worden, eine grössere Festigkeit und eine bessere Homogenität der Dichte oder Härte über die Dicke der Spanplatte oder Faserplatte dadurch zu erreichen, dass zwischen den einzelnen Anpresswalzen Druckschalen vorgesehen sind, über die das Pressband unter Ausübung eines Zwischendruckes hinweggleitet. Damit lässt sich in den Pressstreckenbereichen zwischen den Anpresswalzen ein Zwischendruck von bis zu 25 bar halten, wodurch die Eigenschaften der hergestellten Spanplatten oder Faserplatten bezüglich ihrer Dichte oder Härteverteilung deutlich verbessert werden können. Da jedoch zwischen den Presswalzen und den Druckschuhen zwangsweise Lücken vorhanden sein müssen, in welchen der Druck auf einen sehr niedrigen Wert abfällt, so dass das Fasermaterial in diesen Zwischenbereichen nicht mehr unter Druck gehalten ist und zurückfedern kann, sind die Materialeigenschaften auch bei solchen Anordnungen noch nicht optimal.As already described in DE-A-38 00 513, it is already have been tried, greater strength and better Homogeneity of density or hardness across the thickness of the Chipboard or fiberboard to achieve that pressure shells between the individual pressure rollers are provided over which the press belt under exercise of an intermediate pressure slides away. It can be used in the press section areas between the pressure rollers Maintain an intermediate pressure of up to 25 bar, which means that Properties of the chipboard produced or Fiberboard in terms of density or hardness distribution can be significantly improved. However, since between the Press rollers and the pressure shoes forced gaps must exist in which the pressure on you drops very low, so the fiber material in these intermediate areas are no longer kept under pressure is and can spring back, are the material properties not optimal even with such arrangements.

Die Erfindung geht von einer Einrichtung aus, die aus der FR-A-13 74 001 bekannt ist. Bei dieser Einrichtung ist eine Druckschale mit hydraulischen, mit Gummidichtungen gegen aussen abgedichteten, mit Drucköl versorgten Druckkammern vorgesehen, mit denen eine Presskraft auf die Presstrommel ausgeübt ist, da die Gummidichtungen nur einen beschränkten Druck aushalten, und dass die Dichtungen bei grösseren Laufgeschwindigkeiten eine unzulässige Reibung verursachen und einem schnellen Verschleiss unterliegen.The invention is based on a device that from the FR-A-13 74 001 is known. With this facility is a pressure shell with hydraulic, with rubber seals sealed against the outside, supplied with pressure oil Pressure chambers are provided with which a pressing force is exerted the press drum is exercised since the rubber seals only endure limited pressure and that the Seals at higher speeds a cause inadmissible friction and a quick Subject to wear.

Weiterhin ist nachteilig, dass bei den bekannten Einrichtungen erhebliche Kräfte an den Presstrommel-Lagern auftreten können. Dies erfordert die Anordnung der einzelnen Presswalzen derart, dass die Lagerkräfte der Presstrommel zumindest zum Teil kompensiert werden, wobei durch eine Anpassung an andere Betriebsbedingungen das Kräftegleichgewicht gestört würde. Weiter ist nachteilig, dass die Presswalzen die Presstrommel so stark verformen, dass die Einhaltung enger Toleranzen möglich ist.Another disadvantage is that in the known Establish considerable forces on the press drum bearings may occur. This requires the arrangement of the individual press rolls in such a way that the bearing forces of the Press drum are at least partially compensated for by adapting to other operating conditions Balance of forces would be disturbed. Another disadvantage is that the press rolls deform the press drum so much, that close tolerances are possible.

Die Erfindung setzt sich die Aufgabe, die vorstehend angeführten Nachteile des Standes der Technik zu vermeiden und insbesondere eine Einrichtung zu schaffen, bei der zur Herstellung von Spanplatten, Faserplatten oder dgl. in der Pressstrecke kontinuierlich ein Pressdruck aufrechterhalten wird, unter Vermeidung oder Reduzierung einer eingangsseitigen Druckspitze und von Unterbrüchen, um eine grössere Festigkeit und eine homogenere Dichte- und Härteverteilung über die Dicke der Spanplatte oder Faserplatte zu erreichen, wobei das Material in der Pressstrecke auf einfache Weise über die Aushärtetemperatur des Bindemittels erhitzt wird, wobei extreme Lagerkräfte vermieden werden, und wobei auch bei grösseren Bandgeschwindigkeiten ein reibungs- und verschleissarmer Lauf bei höherer Presskraft erreicht wird.The invention has for its object the above mentioned disadvantages of the prior art avoid and in particular to create a facility in the production of chipboard, fiberboard or the like a pressing pressure continuously in the pressing section is maintained, with avoidance or reduction a pressure peak on the input side and interruptions, for greater strength and a more homogeneous density and Hardness distribution over the thickness of the chipboard or To achieve fiberboard, the material in the Press section in a simple way over the Curing temperature of the binder is heated, wherein extreme bearing forces can be avoided, and at higher belt speeds a friction and low-wear run achieved with higher pressing force becomes.

Erfindungsgemäss wird diese Aufgabe mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.According to the invention, this object is achieved with the characterizing features of claim 1 solved.

Bei einer vorteilhaften Weiterbildung der Erfindung sind unmittelbar an den eingangsseitigen Druckschuh mit einem ersten Pressdruck weitere hydrostatische Druckschuhe vorgesehen, welche einen sukzessiv stufenweise abnehmenden Pressdruck auf das Pressband ausüben. Anschliessend kann dann an der Austrittsseite der Platten eine Formgebungswalze mit über die Breite steuerbarer Linienkraft vorgesehenIn an advantageous development of the invention directly to the pressure shoe with a first press pressure further hydrostatic pressure shoes provided which is a gradual one Apply decreasing pressure on the press belt. Then it can be on the outlet side of the plates a shaping roller with controllable across the width Line force provided

Claims (10)

  1. An equipment having a heatable pressure-drum (1) and an endless metallic pressure-belt (2) which is led over guiderolls and encloses the pressure-drum (1) over part of its circumference to form a pressure section (P) for the material to be compressed, the latter being heated above the setting temperature of the binder and at least one hydraulic pressure equipment in the shape of at least one pressure-shoe being provided, which acts with a certain superficial pressure upon the pressure belt (1) over part of the circumference of the pressure-drum (1), whilst the pressure-shoe or shoes (10, 13, 14, 15) exhibit bearing areas (11) lubricated hydrostatically by lubricant at a certain pressure so that the pressure-belt (2) is capable of sliding almost without friction over the pressure-shoe or shoes (10, 13, 14, 15), characterized in that for the continuous production of chipboard, fibreboard, or the like from comminuted lignocellulose- or cellulose-containing raw material (5) mixed with a pressure-setting and/or thermo-setting binder, the pressure shoe or shoes form with the pressure-drum (1) a gradually narrowing entry zone (E) and a succeeding region extending as the pressure section (P) over a certain arc of the pressure-drum (1) at approximately uniform pressure and/or distance from the pressure-drum.
  2. An equipment as in Claim 1, characterized in that
       in the pressure section (P) directly adjacent to the first pressure-shoe (10) at least one further pressure-shoe (13, 14, 15) is arranged, having a hydrostatic bearing area with adjustable pressure.
  3. An equipment as in Claim 1 or 2, characterized in that
       by means of an adjuster device (23) the pressure-shoe is or shoes are adjustable in their direction of pressure against the pressure-drum (1).
  4. An equipment as in Claim 3, characterized in that
       the adjuster device (23) exhibits a pressure-chamber supplied with pressure medium so that the pressure-shoe (10, 13, 14, 15) is movable over it.
  5. An equipment as in one of the Claims 1 - 4, characterized in that
       the pressure-shoe (10) exhibits at its front end (25) before the entry zone (E) a preheat zone (C) in which the pressure-belt (2) slides over a surface exhibiting a hydrostatic bearing pocket (26) supplied with hot pressure medium, and thus becomes heated.
  6. An equipment as in one of the Claims 1 - 5, characterized in that
       in the pressure section (P) after the last pressure-shoe (15) a shaper-roll (16) is arranged, which exerts upon the pressure-belt (2) a higher pressure than the last pressure-shoe (15).
  7. An equipment as in one of the Claims 1 - 6, characterized in that
       the shaper-roll (6) and/or the pressure-drum (1) exhibits a non-rotating bearer (16, 19) and a jacket (17, 20) rotatable with respect to the latter and supported by at least one supporting element (18, 21) with adjustable supporting force.
  8. An equipment as in Claim 7, characterized in that
       the shaper-roll (6) and/or the pressure-drum (1) exhibits a number of supporting elements (18) arranged side by side in the axial direction and having individually adjustable supporting force.
  9. An equipment as in Claim 7, characterized in that
       the shaper-roll (6) is adjustable in the direction of motion of the pressure-belt (2).
  10. An equipment as in one of the Claims 1 - 4, characterized in that
       the shaper-roll (6) and/or the pressure-drum (1) exhibits at its pressure side a part-space, especially a half-space (h, H) which is sealed by sealing strips (24) and may be filled with pressure fluid.
EP93810458A 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like Expired - Lifetime EP0630726B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES93202303T ES2121931T3 (en) 1993-06-25 1993-06-25 DEVICE FOR THE CONTINUOUS MANUFACTURE OF PARTICLE PANELS, FIBER PANELS OR OTHERS.
EP93810458A EP0630726B1 (en) 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like
DE59308992T DE59308992D1 (en) 1993-06-25 1993-06-25 Device for the continuous production of chipboard, fiberboard or the like.
ES93810458T ES2121977T3 (en) 1993-06-25 1993-06-25 DEVICE FOR THE CONTINUOUS MANUFACTURE OF PARTICLE PANELS, FIBER PANELS OR OTHERS.
EP93202303A EP0630725B1 (en) 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like
DE59308993T DE59308993D1 (en) 1993-06-25 1993-06-25 Device for the continuous production of chipboard, fiberboard or the like.
US08/249,517 US5527422A (en) 1993-06-25 1994-05-26 Machine for continuous manufacture of chipboards, fibreboards or similar products
RU9494022263A RU2066634C1 (en) 1993-06-25 1994-06-23 Device for continuous manufacture of wood-particle boards, fiber boards and the like
RU94028279/15A RU2067930C1 (en) 1993-06-25 1994-08-01 Device for continuous manufacture of wood particle boards, fibrous boards or alike

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810458A EP0630726B1 (en) 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP93202303.9 Division-Into 1993-06-25
EP93202303A Division EP0630725B1 (en) 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like

Publications (2)

Publication Number Publication Date
EP0630726A1 EP0630726A1 (en) 1994-12-28
EP0630726B1 true EP0630726B1 (en) 1998-09-16

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP93810458A Expired - Lifetime EP0630726B1 (en) 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like
EP93202303A Expired - Lifetime EP0630725B1 (en) 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP93202303A Expired - Lifetime EP0630725B1 (en) 1993-06-25 1993-06-25 Device for the continuous production of particle boards, fibre boards or the like

Country Status (5)

Country Link
US (1) US5527422A (en)
EP (2) EP0630726B1 (en)
DE (2) DE59308993D1 (en)
ES (2) ES2121931T3 (en)
RU (2) RU2066634C1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443763A1 (en) * 1994-12-08 1996-06-13 Hymmen Theodor Gmbh Continuously operating press for the production of wood-based panels
FI98554C (en) * 1995-08-18 1997-07-10 Valmet Corp Method of controlling the load of bend adjustable roll and bend adjustable roll
CH690757A5 (en) * 1995-11-29 2001-01-15 Pretto De Escher Wyss Srl Means for the production of particleboard or fiberboard.
DE19828156A1 (en) * 1998-06-24 1999-12-30 Voith Sulzer Papiertech Patent Device for smoothing a web of material
NL1010620C2 (en) 1998-11-20 2000-05-23 Klieverik Heli Bv Laminator.
JP2003102770A (en) * 2001-09-28 2003-04-08 Johnson & Johnson Kk Seal device
DE10237535A1 (en) * 2002-08-16 2004-03-04 Voith Paper Patent Gmbh Device for the production of material webs
DE10348595A1 (en) * 2003-10-20 2005-05-19 Voith Paper Patent Gmbh Hydrodynamic in paper dewatering nip assembly or smoothing calendar has outer rim separated from stationary discs by hydraulic gap guide
US8287266B2 (en) * 2006-06-16 2012-10-16 GKN Aerospace Services Structures, Corp. Device for performing consolidation and method of use thereof
JP5017148B2 (en) * 2008-03-06 2012-09-05 ユニ・チャーム株式会社 Processing equipment
CN101531025B (en) * 2009-04-15 2010-09-29 敦化市亚联机械制造有限公司 Continuous calendar press with flexible hot pressboard
EP2524805A1 (en) * 2011-05-20 2012-11-21 KBA-NotaSys SA Ink wiping system for an intaglio printing press
EP2524809A1 (en) * 2011-05-20 2012-11-21 KBA-NotaSys SA Ink wiping system for an intaglio printing press
CN105599068B (en) * 2015-12-21 2018-07-06 北京林业大学 A kind of roll-in hot press, veneer lengthening system and veneer lengthening method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1374001A (en) * 1963-10-30 1964-10-02 Ts P Konstrouktorskoje Bureau Device for the manufacture of laminated building materials intended primarily for decoration and upholstery
GB1193156A (en) * 1967-09-15 1970-05-28 Ashihara Tekkosho Kk Device for Continuously Pressure Treating Belt-like Articles
DE2549560C3 (en) * 1975-11-05 1980-01-17 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Continuously working chipboard press
CA1296557C (en) * 1986-04-09 1992-03-03 Josef Pav System of rolls for use in calenders and like machines
FI75407C (en) * 1986-11-21 1988-06-09 Valmet Oy Method in a bend-controlled roll and roll device for application of the method.
DE3800513A1 (en) * 1988-01-11 1989-07-27 Baehre & Greten Continuously operating press
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 (en) * 1990-12-24 1992-06-25 Held Kurt CONTINUOUSLY WORKING DOUBLE BAND PRESS
EP0537315B1 (en) * 1991-05-03 1996-09-25 Voith Sulzer Papiermaschinen GmbH Controlled deflection roll and its use
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
ES2121931T3 (en) 1998-12-16
RU2067930C1 (en) 1996-10-20
US5527422A (en) 1996-06-18
EP0630726A1 (en) 1994-12-28
ES2121977T3 (en) 1998-12-16
DE59308992D1 (en) 1998-10-22
EP0630725B1 (en) 1998-09-16
RU2066634C1 (en) 1996-09-20
EP0630725A1 (en) 1994-12-28
DE59308993D1 (en) 1998-10-22
RU94028279A (en) 1996-06-27

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