EP0140117B1 - Presse à travailler continuellement pour presser un lé de matière en mouvement - Google Patents

Presse à travailler continuellement pour presser un lé de matière en mouvement Download PDF

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Publication number
EP0140117B1
EP0140117B1 EP84111039A EP84111039A EP0140117B1 EP 0140117 B1 EP0140117 B1 EP 0140117B1 EP 84111039 A EP84111039 A EP 84111039A EP 84111039 A EP84111039 A EP 84111039A EP 0140117 B1 EP0140117 B1 EP 0140117B1
Authority
EP
European Patent Office
Prior art keywords
press
press frame
frame
parts
heating arrangement
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
Application number
EP84111039A
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German (de)
English (en)
Other versions
EP0140117A1 (fr
Inventor
Kurt Held
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
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6212167&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0140117(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0140117A1 publication Critical patent/EP0140117A1/fr
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Publication of EP0140117B1 publication Critical patent/EP0140117B1/fr
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • 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 continuously operating press for pressing a leading material web with a rigid press frame, with an upper and a lower, endless press belt, each guided via a pair of deflection rollers rotatably mounted in the press frame, with a heating device for heating at least one deflection roller of each pair, with a reaction zone formed between the mutually facing strands of the upper and lower press belt for pressing the leading material web with simultaneous exposure to heat, and with pressure plates having a heating device on the rear sides of the press belt run facing away from the reaction zone for exerting a pressing pressure on these rear sides and thus on the material web.
  • the finished product i.e. a material web pressed under the influence of heat, for example in the form of decorative, multi-layer laminates, particle boards, fiberboard, plywood boards, electrolaminates
  • the required dimensional stability i.e. H. especially across its width, shows different thicknesses, which made expensive post-treatment of the pressed material, such as grinding the surface or the like, necessary.
  • the object is achieved according to the invention in that the press frame or at least parts thereof are additionally heated by a further heating device and heat shield caps which are movable on the press frame are arranged on the way.
  • deflection rollers 2, 3, 4, 5 are rotatably mounted on a press frame 1.
  • a press frame 1 Around the rollers 2, 3 forming a first pair is an endless, upper press belt 6, around which a further pair of rollers 4, 5 a lower press belt 7 is guided. The direction of rotation is indicated by the arrows in the deflection rollers 2, 4.
  • a press or reaction zone 8 Between the lower run of the upper press belt 6 and the upper run of the lower press belt 7 there is a press or reaction zone 8, in which a material web advancing from left to right in FIG. 1 is pressure-compressed with the simultaneous application of heat.
  • the following are particularly suitable as materials: laminates impregnated with synthetic resin, chipboard, fibreboard, plywood, electrical laminates and the like.
  • the deflection rollers 2, 4 located on the inlet side of the material web are heated in a manner known per se via corresponding heating devices, for example with the aid of a heated thermal oil.
  • the pressing pressure to be exerted on the material web (not shown) is transferred hydraulically or mechanically from pressure plates 9, 11 to the belt runs delimiting the reaction zone 8 at the top and bottom.
  • the pressure plates 9, 11 are mounted fixed to the frame.
  • a pressure medium that can be pressurized is introduced into the space between the pressure plate and the rear side of the assigned belt run.
  • rollers running across the belt width are arranged in the space between the pressure plates, which in this case are slidably mounted, and the associated belt strand.
  • the pressure plates with the rollers can be pressed against the relevant belt run via pressure medium cylinders mounted on the press frame.
  • the printing plates can be heated by heating devices assigned to them, for example by thermal oil circulating in the plates.
  • the press belts 6, 7 are made of metal, preferably stainless steel.
  • the press frame cf. 1 and 2 in particular, comprises a stationary base plate 12 in which two L-shaped stands 13 are firmly anchored are.
  • the deflecting rollers 2, 3, 4, 5 are supported in a self-supporting manner on the vertically extending legs 14 of the stand 13.
  • This bearing arrangement comprises, as a cantilevered frame parts, a plurality of support beams 15, 16 in the form of strong, inherently rigid double-T beams as well as bearing bridges 17, 18, 19, 21 of essentially rectangular cross-sectional shape.
  • the press belts 6, 7 run around the support brackets and the bearing bridges.
  • Elongated head plates 22, 23 are welded to the front and rear end faces of the support brackets 15, 16, to which the bearing bridges mentioned are screwed.
  • the bearing bridges 17, 19 and 18, 21 are each connected to one another via height-adjustable spindles 24 which serve to adjust the height of the reaction zone 8 between the press belts 6, 7.
  • the press belts 6 can be tensioned by means of hydraulic cylinders 25, 26, which are arranged in the bearing bridges 17 and 19 (FIG. 1), so that they are safely carried along by the driven deflecting rollers.
  • the lower bearing bridge 21 located there on the right is anchored in the leg 14 of the stand 13 in such a way that it supports the lower pair of rollers with the intermediate frame parts, namely the support beams 16 and the head plates 23, the deflection rollers in the bearing bridges are rotatably mounted.
  • the upper pair of deflection rollers (deflection rollers 2, 3) is supported on its bearing bridges 17, 18 via the spindles 24 on the bearing bridges 19, 21 of the lower pair of deflection rollers.
  • Arms 27 protrude from the bearing bracket 18 on the right in FIG. 2, which are braced via a coupling 28 to the leg 14 of the stand 13, so that overall a stable, self-supporting arrangement results, which - after removal of the one in FIG. 1 visible spindles 24 on the front of the press - a replacement of the press belts 6, 7 and the pressure plates 9, 11 allows.
  • the pressure plates 9, 11 are clamped to the respective webs of the support beams 15, 16 via tongue and groove connections 29 known per se.
  • the reaction forces emanating from the compressed material web are conducted via the pressure plates 9, 11 to the support beams 15, 16, from where they are guided into the bearing bridges 17, 18, 19, 21 and then via the spindles 24 and the stands 13 into the base plate 12 and thus be taken up by the earth.
  • the pressure plates 9, 11 are preferably heated to the same temperature as the press belts 6.
  • the pressure plates 9, 11 are, as described and shown, in direct thermal contact with the rest of the press frame, which is at least partially at room temperature, since it is in contact with the surrounding room air. Differences in temperature thus occur in the press frame. Due to the high thermal coefficient of linear expansion in metals, those parts of the press frame which are at an elevated temperature will expand much more than the other, not so strongly heated parts which are further away from the pressure plates 9, 11.
  • the press frame is designed according to the invention to be heatable and provided with heat shields.
  • further heating devices are arranged on the press frame or at least on parts thereof. These heating devices can be present, for example, in the form of bores or channels 31 in the support beams 15, 16 and head plates 22, 23.
  • heating plates 32 and 33 are directly connected to the webs of the support beams 15 and 16 above and below, by means of which the support beams are brought to a desired temperature, preferably to the temperature of the pressure plates 9 , 11 are heated. There is therefore no longer any temperature difference between the support beams 15, 16 and the reaction zone 8, and the support beams do not bend.
  • the heating plates 32, 33 can in turn also z. B. with thermal oil or electrically heated. They are preferably welded directly onto the support beams 15, 16 with a large contact area. Since, as can be seen from FIGS. 1 and 2, the end faces of the heating plates 32, 33 are easily accessible, lines for a thermal oil circuit can be connected there without further ado.
  • heat shield caps 34 which form part of the press, are arranged in the region of the lateral surfaces of the deflecting rollers 2, 3, 4, 5 emerging from the end of the press frame 1 overall machine cladding 35 form (Fig.1). Because of this cladding 34, 35, practically only the entry gap and exit gap for the material web to be pressed are directly connected to the surroundings.
  • the shielding caps 34 which also consist of sheet metal like the covering 35, are provided on the inside in a known manner with a heat-insulating layer.
  • this heat shielding cap 34 is arranged so that it can be pivoted laterally, so that it can easily be moved out of the way by a single operator.
  • a bracket 37 is welded to the end face 36 of a bearing bracket 18 (or in another embodiment also to the machine casing 35), in which an extension arm 39 is rotatably articulated by a hinge 38.
  • the shield 34 is in turn rotatably supported by an axis. Because of this double-joint design, the shielding cap 34 can be pivoted laterally towards the press, where it takes up relatively little space. In another embodiment, the shielding cap can also be designed to be pivotable upwards or downwards. A displacement movement using telescopic arms or the like is also possible. Finally, in a further development of the movable shielding cap, its movement can also be carried out with the aid of a motor drive in a manner known per se.
  • the heating devices associated with the press frame or parts thereof e.g. B. the heating plates 32, 33 or the temperature of a certain press parts flowing thermal oil controlled by control loops known per se.
  • the actual value of the deflection of the support beams 15, 16 or other press frame parts is determined with the aid of measuring sensors and compared with the desired value to be maintained. If necessary, the heating of the press frame is then temporarily switched on and off, so that the target value which is assigned to the geometry of the press frame is always retained.
  • the actual value of the material to be pressed can also be detected by means of corresponding feelers and the heating device of the press frame or its parts can be controlled via a control circuit which responds to deviations of the actual thickness of the finished material from the target thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (10)

1. Presse travaillant en continu pour presser une bande de matière en mouvement, avec un bâti de presse rigide, une bande de pression supérieure et une bande de pression inférieure, sans fin, passant chacune sur une paire de rouleaux de renvoi montés tournants dans des paliers du bâti de presse, un dispositif de chauffage pour chauffer au moins un rouleau de renvoi de chaque paire, une zone de réaction formée entre les brins tournés l'un vers l'autre de la bande de pression supérieure et de la bande de pression inférieure, pour presser la bande de matière en mouvement sous un effet thermique simultané, et avec des plaques de serrage présentant un dispositif de chauffage sur les faces arrière opposées à la zone de réaction des brins des bandes de pression pour exercer une pression sur ces faces arrière et, ainsi, sur la bande de matière, caractérisée en ce que le bâti de presse (1) ou au moins des parties de celui-ci (consoles d'appui 15, 16) sont chauffées addi- tionnellement par un dispositif de chauffage supplémentaire (32, 34) et des capots de protection contre la chaleur (34) déplaçables hors du parcours sont disposés sur le bâti de presse.
2. Presse selon la revendication 1, caractérisée en ce que le bâti de presse (1) ou des parties (15, 16) de celui-ci peuvent être chauffées à une température au moins égale à celle des bandes de pression (6, 7).
3. Presse selon la revendication 1 ou 2, caractérisée en ce que, comme dispositif de chauffage supplémentaire sont prévues dans le bâti de presse (1) ou dans des parties (15, 16) de celui-ci des conduites de circulation (31) d'un fluide thermique.
4. Presse selon la revendication 1, 2 ou 3, caractérisée en ce que, comme dispositif de chauffage supplémentaire, sont disposées dans le bâti de presse (1) ou dans des parties (15, 16) de celui-ci des plaques chauffantes (32, 33) supplémentaires.
5. Presse selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les capots de protection contre la chaleur (34) sont montés pivotants sur le bâti de presse (1).
6. Presse selon l'une quelconque des revendications précédentes, caractérisée en ce que les capots de protection contre la chaleur (34) sont déplaçables par un moteur d'entraînement.
7. Presse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de chauffage (31; 32, 33) du bâti de presse (1) ou de ses parties (15, 16) est commandé à l'aide d'un circuit de régulation qui réagit aux écarts de l'épaisseur effective de la bande de matière terminée sous pression par rapport à son épaisseur de consigne.
8. Presse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de chauffage (31; 32, 33) du bâti de presse (1 ) ou de ses parties (15, 16) est commandé à l'aide d'un circuit de régulation qui réagit aux écarts de la géometrie effective du bâti de presse ou de ses parties par rapport à leur géométrie de consigne.
9. Presse selon la revendication 8, caractérisée en ce que la flexion d'au moins une console d'appui (15, 16) du bâti de presse (1) sert comme grandeur de détermination pour les écarts de la géométrie effective de la presse par rapport à la géométrie de consigne.
10. Presse selon la revendication 9, caractérisée en ce que les consoles d'appui (15, 16) sont chauffées par le dispositif de chauffage supplémentaire (31; 32, 33).
EP84111039A 1983-10-19 1984-09-15 Presse à travailler continuellement pour presser un lé de matière en mouvement Expired EP0140117B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833337913 DE3337913A1 (de) 1983-10-19 1983-10-19 Kontinuierlich arbeitende presse zum pressen einer vorlaufenden werkstoffbahn
DE3337913 1983-10-19

Publications (2)

Publication Number Publication Date
EP0140117A1 EP0140117A1 (fr) 1985-05-08
EP0140117B1 true EP0140117B1 (fr) 1987-12-09

Family

ID=6212167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111039A Expired EP0140117B1 (fr) 1983-10-19 1984-09-15 Presse à travailler continuellement pour presser un lé de matière en mouvement

Country Status (4)

Country Link
US (1) US4615758A (fr)
EP (1) EP0140117B1 (fr)
JP (1) JPS6094305A (fr)
DE (1) DE3337913A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863552A (en) * 1986-02-22 1989-09-05 Taihei Machinery Works, Ltd. Horizontal multistage press
FI75754C (fi) * 1986-10-13 1988-08-08 Rauma Repola Oy Anordning foer reglering av tvaerprofilen hos en pao ett transportband lagd spaonmatta.
DE3717308A1 (de) * 1987-05-22 1988-12-15 Held Kurt Doppelbandpresse zur kontinuierlichen herstellung von endlosen werkstoffbahnen
DE3717649A1 (de) * 1987-05-26 1988-12-15 Held Kurt Doppelbandpresse mit erwaerm- oder kuehlbaren teilen und verfahren zu deren herstellung
US5364484A (en) * 1989-10-13 1994-11-15 Sanford Redmond Inc. Method and apparatus for collating automatically produced packages or other production units
US5034088A (en) * 1989-11-16 1991-07-23 Doboy Packaging Machinery, Inc. Band wheel and tension control
DE10030003A1 (de) * 1999-11-02 2001-12-20 Krupp Drauz Ingenieurbetr Gmbh Stapelanlage für mittelgroße Blechteile
US6908295B2 (en) * 2000-06-16 2005-06-21 Avery Dennison Corporation Process and apparatus for embossing precise microstructures and embossing tool for making same
US8747098B1 (en) * 2008-03-24 2014-06-10 Ebert Composites Corporation Thermoplastic pultrusion die system and method
US8123510B1 (en) * 2008-03-24 2012-02-28 Ebert Composite Corporation Thermoplastic pultrusion die system and method
CN103369742B (zh) * 2012-03-26 2016-03-02 昆山渝榕电子有限公司 高频电加热滚动带

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1561063A (en) * 1924-02-08 1925-11-10 Dunlap Matthew Elbridge Method and apparatus for making plywood
US2071999A (en) * 1934-03-17 1937-02-23 Laucks I F Inc Continuous press for production of board-like products
US2975470A (en) * 1958-01-09 1961-03-21 Tectum Corp Apparatus for steam treating fibrous panels
DE1154255B (de) * 1961-06-29 1963-09-12 Eugen Siempelkamp Heizplattenpresse, insbesondere Heizplatten-Etagenpresse
DE1939784C3 (de) * 1969-08-05 1978-08-24 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen Kontinuierlich arbeitende Presse zur Herstellung von Spanplatten, Faserplatten, Sperrholzplatten o.dgl
AT328712B (de) * 1972-03-08 1976-04-12 Baehre & Greten Beheizeinrichtung fur eine kontinuierlich arbeitende presse
DE2220074B2 (de) * 1972-04-24 1976-03-25 Bison-Werke Bahre und Greten GmbH & Co KG, 3257 Springe Beheizeinrichtung fuer eine kontinuierlich arbeitende presse
DE2729559C2 (de) * 1977-06-30 1979-05-03 Sandvik Conveyor Gmbh, 7012 Fellbach Presse zum Herstellen von Werkstoffplatten o.dgl
US4360189A (en) * 1980-07-28 1982-11-23 Duncan James P Quench press
US4417865A (en) * 1980-11-14 1983-11-29 Maschinenfabrik J. Dieffenbacher Gmbh Co. Continuously operating press
DE3234082C2 (de) * 1982-09-14 1987-01-29 Held, Kurt, 7218 Trossingen Doppelbandpresse

Also Published As

Publication number Publication date
JPS6094305A (ja) 1985-05-27
DE3337913A1 (de) 1985-05-02
EP0140117A1 (fr) 1985-05-08
US4615758A (en) 1986-10-07

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