EP0630725B1 - Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. - Google Patents
Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. Download PDFInfo
- 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
Links
Images
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.
Description
Claims (8)
- Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. aus einem zerspanten oder zerfaserten, mit einem druck- und/oder thermohärtenden Bindemittel vermischten, lignocellulose- oder cellulosehaltigem Ausgangsmaterial (5) mit einer beheizbaren Presstrommel (1) und einem endlosen, über Umlenkwalzen geführten metallischen Pressband (2), welches die Presstrommel (1) auf einem Teil ihres Umfanges unter Bildung einer Pressstrecke (P) für das zu verdichtende, über die Aushärtetemperatur des Bindemittels erwärmte Material umschliesst, wobei wenigstens eine das Pressband (1) flächenmässig mit einem bestimmten Press-Druck beaufschlagende Anpresseinrichtung (10, 13, 14, 15) vorgesehen ist, dadurch gekennzeichnet, dass die Presstrommel (1) einen drehfesten Träger (19) und einen gegen diesen rotierbaren mit wenigstens einem Stützelement (21) mit einstellbarer Stützkraft abgestützten Mantel (20) aufweist, wobei die Stützvorrichtung ein von Druckflüssigkeit gefülltes hydrostatisches Lagerfeld (H) ist, das an der Pressseite der Presstrommel angeordnet und als von Dichtleisten (24) abgetrennter Kreisringraumabschnitt zwischen Innenmantelfläche der Trommel (20) und Träger (19) ausgebildet ist.
- Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Presseinrichtung zumindest an der Eingangsseite in die Pressstrecke durch einen Druckschuh (10) mit hydraulischer Lagerfläche (11) gebildet wird, welcher mit der Presstrommel (1) eine sich allmählich verengende Einlaufzone (E) und eine anschliessende, sich über einen gewissen Umfang der Presstrommel (1) erstreckenden Pressstrecken-Bereich (P) mit angenähert gleichförmigem Pressdruck und/oder Abstand von der Presstrommel bildet.
- Einrichtung nach Anspruch 2, dadurch gekennzeichnet, dass in der Pressstrecke (P) unmittelbar anschliessend an den Druckschuh (13, 14, 15) mit hydraulischer Lagerfläche mit einstellbarem Pressdruck angeordnet ist.
- Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in der Pressstrecke (P) nach dem letzten Druckschuh (15) eine Formwalze (16) angeordnet ist, die einen höheren Pressdruck auf das Pressband (2) ausübt als der letzte Druckschuh (15).
- Einrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Formwalze (6) einen drehfesten Träger (16) und einen gegen diesen rotierbaren mit wenigstens einer Stützvorrichtung (18) mit einstellbarer Stützkraft abgestützten Mantel (17) aufweist.
- Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Formwalze (6) mehrere in Achsenrichtung nebeneinander angeordnete Stützelemente (18) mit individuell einstellbarer Stützkraft aufweist.
- Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Formwalze (6) in Richtung der Bewegung des Pressbandes (2) verstellbar ist.
- Einrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Formwalze (6) an ihrer Pressseite einen durch Dichtleisten (24) abgedichteten, mit Druckfluid füllbaren Teilraum, insbesondere einen Halbraum (h) aufweist.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93810458A EP0630726B1 (de) | 1993-06-25 | 1993-06-25 | Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93810458A Division EP0630726B1 (de) | 1993-06-25 | 1993-06-25 | Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. |
EP93810458.5 Division | 1993-06-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0630725A1 EP0630725A1 (de) | 1994-12-28 |
EP0630725B1 true EP0630725B1 (de) | 1998-09-16 |
Family
ID=8214990
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93810458A Expired - Lifetime EP0630726B1 (de) | 1993-06-25 | 1993-06-25 | Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. |
EP93202303A Expired - Lifetime EP0630725B1 (de) | 1993-06-25 | 1993-06-25 | Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93810458A Expired - Lifetime EP0630726B1 (de) | 1993-06-25 | 1993-06-25 | Einrichtung zur kontinuierlichen Herstellung von Spanplatten, Faserplatten oder dgl. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5527422A (de) |
EP (2) | EP0630726B1 (de) |
DE (2) | DE59308993D1 (de) |
ES (2) | ES2121931T3 (de) |
RU (2) | RU2066634C1 (de) |
Families Citing this family (14)
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 |
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 (de) * | 2011-05-20 | 2012-11-21 | KBA-NotaSys SA | Tintenwischsystem für eine Intaglio-Druckpresse |
EP2524805A1 (de) * | 2011-05-20 | 2012-11-21 | KBA-NotaSys SA | Tintenwischsystem für eine Intaglio-Druckpresse |
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)
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 (en) * | 1986-04-09 | 1992-03-03 | Josef Pav | System of rolls for use in calenders and like machines |
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 |
EP0537315B1 (de) * | 1991-05-03 | 1996-09-25 | Voith Sulzer Papiermaschinen GmbH | Durchbiegungseinstellwalze und deren verwendung |
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 |
-
1993
- 1993-06-25 EP EP93810458A patent/EP0630726B1/de not_active Expired - Lifetime
- 1993-06-25 EP EP93202303A patent/EP0630725B1/de not_active Expired - Lifetime
- 1993-06-25 DE DE59308993T patent/DE59308993D1/de not_active Expired - Fee Related
- 1993-06-25 ES ES93202303T patent/ES2121931T3/es not_active Expired - Lifetime
- 1993-06-25 DE DE59308992T patent/DE59308992D1/de not_active Expired - Fee Related
- 1993-06-25 ES ES93810458T patent/ES2121977T3/es not_active Expired - Lifetime
-
1994
- 1994-05-26 US US08/249,517 patent/US5527422A/en not_active Expired - Fee Related
- 1994-06-23 RU RU9494022263A patent/RU2066634C1/ru active
- 1994-08-01 RU RU94028279/15A patent/RU2067930C1/ru not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE59308992D1 (de) | 1998-10-22 |
RU2066634C1 (ru) | 1996-09-20 |
EP0630726A1 (de) | 1994-12-28 |
RU2067930C1 (ru) | 1996-10-20 |
DE59308993D1 (de) | 1998-10-22 |
EP0630726B1 (de) | 1998-09-16 |
EP0630725A1 (de) | 1994-12-28 |
US5527422A (en) | 1996-06-18 |
ES2121977T3 (es) | 1998-12-16 |
ES2121931T3 (es) | 1998-12-16 |
RU94028279A (ru) | 1996-06-27 |
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