EP0507085B1 - Dispositif pour appliquer une pression sur la surface de matière à travailler en mouvement continu - Google Patents

Dispositif pour appliquer une pression sur la surface de matière à travailler en mouvement continu Download PDF

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Publication number
EP0507085B1
EP0507085B1 EP92103438A EP92103438A EP0507085B1 EP 0507085 B1 EP0507085 B1 EP 0507085B1 EP 92103438 A EP92103438 A EP 92103438A EP 92103438 A EP92103438 A EP 92103438A EP 0507085 B1 EP0507085 B1 EP 0507085B1
Authority
EP
European Patent Office
Prior art keywords
pressing belt
shaped bodies
sealing
pressure
pressure chamber
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
EP92103438A
Other languages
German (de)
English (en)
Other versions
EP0507085A3 (en
EP0507085A2 (fr
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.)
Theodor Hymmen KG
Original Assignee
Theodor Hymmen KG
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 Theodor Hymmen KG filed Critical Theodor Hymmen KG
Publication of EP0507085A2 publication Critical patent/EP0507085A2/fr
Publication of EP0507085A3 publication Critical patent/EP0507085A3/de
Application granted granted Critical
Publication of EP0507085B1 publication Critical patent/EP0507085B1/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
    • 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
    • B30B5/062—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 urged by directly-acting fluid pressure
    • 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
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/906—Seal for article of indefinite length, e.g. strip, sheet

Definitions

  • the invention relates to a device for applying surface pressure to progressive workpieces such as wood-based panels or the like, in which at least one rotating press belt can be pressed against the workpiece by a pressure medium that can be introduced into a pressure chamber, and the pressure chamber can be pressed through part of a strand of a press belt.
  • a plastic sealing strip or the like provided on the edge of the pressure plate and supported on the press belt. is limited and the sealing strip has outlet openings for a lubricant in the surface facing the rotating press belt.
  • a device of this type is known (EP-A-0 166 886, Fig. 10), in which the sealing strip is connected to a rectangular mounting frame which is guided in a groove of the pressure plate, movably mounted inwards and outwards and towards the arranged along the sealing strip sliding pressure band is loaded.
  • the sealing strips in cooperation with press belts made of steel, take on the task of sealing the pressure chamber from the atmosphere.
  • Sliding and temperature-resistant plastics are used as the material for such sealing strips.
  • EP-A-0 166 886 it is known (EP-A-0 166 886) to provide the sealing strips with lubricating nozzles or lubricating channels which are arranged at a distance from one another and through which lubricating liquid is transported directly to the sealing surface.
  • the invention has for its object to design the highly stressed sliding surface seals within a device of the type mentioned in such a way that the specified requirements are better met and the areas of use can be expanded with respect to pressure, temperature and belt speed.
  • This configuration of the sealing strips running parallel to the conveying direction of the press belt substantially improves the service life of the seal in the pressure chamber.
  • a pressure chamber 1 of a belt press is shown by a dash-dotted line.
  • This pressure chamber is delimited on the one hand by the working section 2 of an endlessly rotating press belt made of steel, on the opposite side by a pressure plate 3 and all round by a sealing strip 4.
  • the sealing strip 4 is fastened to a mounting frame 5 which is rectangular in shape in accordance with the dash-dotted line and of which only parts are shown in FIG. 1.
  • This rectangular frame engages in a correspondingly designed groove 6 of the pressure plate and is moved by a pressure medium in the direction of the working strand 2, so that the sealing strip 4 is non-positively on the working strand of the endless press belt.
  • molded bodies 7 according to the invention are permanently embedded in such a way that their working surface 8 facing the press belt is exposed and is flush with the working surface of the sealing strip.
  • the shaped bodies 7 are designed as pins and are arranged in the central plane of the sealing strip 4.
  • the shaped bodies 9 are exposed not only on the working surface facing the press belt but also on a side surface 10 or 11 of the sealing strip 4.
  • the distance a between two adjacent moldings corresponds to at least twice the diameter d or twice the greatest thickness of the moldings.
  • the shaped bodies 12 are designed in the form of strips and are exposed with their working surface 13 relative to the press belt and one side surface of the sealing strip 4.
  • the shaped bodies can also have different geometric cross sections than those shown in the figures. They can be designed as pins, plugs, slugs, strips or polygonal blocks.
  • the compact solid lubricant can consist of PTFE, graphite, molybdenum disulfide or a combination of these materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Press Drives And Press Lines (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Forging (AREA)
  • Coating Apparatus (AREA)
  • Catching Or Destruction (AREA)
  • Manipulator (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Gasket Seals (AREA)
  • Sealing Devices (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Laminated Bodies (AREA)

Claims (5)

  1. Dispositif servant à appliquer une pression superficielle sur des pièces à usiner, telles que des plaques de bois ou similaires, en mouvement, dans lequel au moins une bande de pression circulante est susceptible de venir presser contre la pièce à unsiner, qrâce à un moyen d'appui susceptible d'être introduit dans une chambre de compression (1) et dans lequel la chambre de compression (1) est délimitée par une partie de section (2) de la bande de pression, au niveau du cote opposé à la section par une plaque d'appui (3) en forme de rectangle et au niveau des bords longitudinaux et transversaux, par rapport au sens de la marche de la bande de pression (3), par une barrette d'étanchéité (4) en matière synthétique ou similaire s'appuyant sur la bande de pression et prévue sur le bord de la plaque d'appui, et dans lequel la barrette d'étanchéité (4) présente, dans la surface opposée a la bande de pression circulante, des ouvertures d'écoulement pour un lubrifiant, caractérisé en ce que des corps profilés (7, 9, 12) compacts, espacés les uns des autres, constitués en un lubrifiant solide sont encastrés dans les barrettes d'étanchéité, qui sont parallèles au sens d'entraînement de la bande de pression, corps dont la hauteur correspond à cèlle de la couche de résistance à l'usure des barrettes d'étanchéité et qui s'appuient, par une surface de travail libre (8, 13), sur la section (2) associée de la bande de pression.
  2. Dispositif selon la revendication 1, caractérisé en ce que les corps profilés sont disposés, dans la barrette d'étanchéité respective, au centre et en alignement, ou de façon décalée les uns par rapport aux autres.
  3. Dispositif selon la revendication 1, caractérisé en ce que les corps profilés (9, 12) sont libres non seulement au niveau de la surface de travail orientée en direction de la bande de pression, mais également sur une surface latérale de la barrette d'étanchéité (4).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les corps profilés sont conformés en doigts, bouchons, pastilles, barrettes ou blocs polygonaux.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le lubrifiant solide compact Peut être constitué en PTFE, en sulfure de molybdène, en graphite ou en combinaisons de ces composants.
EP92103438A 1991-04-05 1992-02-28 Dispositif pour appliquer une pression sur la surface de matière à travailler en mouvement continu Expired - Lifetime EP0507085B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4111022A DE4111022A1 (de) 1991-04-05 1991-04-05 Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE4111022 1991-04-05

Publications (3)

Publication Number Publication Date
EP0507085A2 EP0507085A2 (fr) 1992-10-07
EP0507085A3 EP0507085A3 (en) 1992-11-19
EP0507085B1 true EP0507085B1 (fr) 1995-04-26

Family

ID=6428882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103438A Expired - Lifetime EP0507085B1 (fr) 1991-04-05 1992-02-28 Dispositif pour appliquer une pression sur la surface de matière à travailler en mouvement continu

Country Status (10)

Country Link
US (1) US5335592A (fr)
EP (1) EP0507085B1 (fr)
JP (1) JP2503148B2 (fr)
KR (1) KR100249140B1 (fr)
CN (1) CN1065425A (fr)
AT (1) ATE121675T1 (fr)
DE (1) DE4111022A1 (fr)
DK (1) DK0507085T3 (fr)
ES (1) ES2072036T3 (fr)
FI (1) FI98611C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5791120A (en) * 1997-06-02 1998-08-11 Oliver Products Company Tray sealing platen and seal apparatus
US6908295B2 (en) * 2000-06-16 2005-06-21 Avery Dennison Corporation Process and apparatus for embossing precise microstructures and embossing tool for making same
CN102773903B (zh) * 2012-07-23 2014-05-07 青岛国森机械有限公司 一种专用于连续压制竹木集成材方料的单向折合履带
DE102016119737B3 (de) * 2016-10-17 2018-03-15 Siempelkamp Maschinen- Und Anlagenbau Gmbh Rollstab und kontinuierliche Presse

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH363856A (de) * 1958-12-24 1962-08-15 Saurer Ag Adolph Gleitteil mit trockener Reibung für hohe Betriebstemperaturen, insbesondere für Lager und Abdichtungen
CH495209A (fr) * 1968-07-12 1970-08-31 Sandco Ltd Presse pour la fabrication ou le traitement, en continu d'un produit en plaque ou en feuille
DE2330306A1 (de) * 1973-06-14 1975-01-16 Dieffenbacher Gmbh Maschf Verfahren zum aufbringen eines gleitbelages auf die widerlagerflaechen einer band-durchlaufpresse
DE2937971A1 (de) * 1979-09-20 1981-04-02 Theodor Hymmen Kg, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
US4341889A (en) * 1981-02-26 1982-07-27 Bausch & Lomb Incorporated Polysiloxane composition and biomedical devices
DE3313406C3 (de) * 1983-04-13 1994-02-24 Hymmen Kg Theodor Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke
DE3424599A1 (de) * 1984-07-04 1986-01-09 Fa. Theodor Hymmen, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3436158A1 (de) * 1984-10-03 1986-04-10 Held, Kurt, 7218 Trossingen Gleitflaechendichtungen an doppelbandpressen
JPS61124727A (ja) * 1984-11-20 1986-06-12 Eagle Ind Co Ltd 摺動材料およびその製造法
DE3445636A1 (de) * 1984-12-14 1986-06-19 Held, Kurt, 7218 Trossingen Doppelbandpresse fuer eine kontinuierlich vorlaufende werkstoffbahn
DE3616619C2 (de) * 1986-05-16 1994-11-17 Held Kurt Dichtungsanordnung an einer Doppelbandpresse und Verfahren zur Herstellung der zugehörigen Dichtungskörper
DE3717308A1 (de) * 1987-05-22 1988-12-15 Held Kurt Doppelbandpresse zur kontinuierlichen herstellung von endlosen werkstoffbahnen

Also Published As

Publication number Publication date
FI921484A0 (fi) 1992-04-03
DE4111022A1 (de) 1992-10-08
FI98611B (fi) 1997-04-15
KR100249140B1 (ko) 2000-04-01
EP0507085A3 (en) 1992-11-19
JP2503148B2 (ja) 1996-06-05
ATE121675T1 (de) 1995-05-15
ES2072036T3 (es) 1995-07-01
US5335592A (en) 1994-08-09
EP0507085A2 (fr) 1992-10-07
CN1065425A (zh) 1992-10-21
JPH0631490A (ja) 1994-02-08
KR920019525A (ko) 1992-11-19
FI98611C (fi) 1997-07-25
FI921484A (fi) 1992-10-06
DE4111022C2 (fr) 1993-04-01
DK0507085T3 (da) 1995-07-10

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