EP0087651A2 - Dispositif pour soutenir les bandes de pressage par des rouleaux dans des presses à double bande - Google Patents

Dispositif pour soutenir les bandes de pressage par des rouleaux dans des presses à double bande Download PDF

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Publication number
EP0087651A2
EP0087651A2 EP83101324A EP83101324A EP0087651A2 EP 0087651 A2 EP0087651 A2 EP 0087651A2 EP 83101324 A EP83101324 A EP 83101324A EP 83101324 A EP83101324 A EP 83101324A EP 0087651 A2 EP0087651 A2 EP 0087651A2
Authority
EP
European Patent Office
Prior art keywords
roller bed
press
pressure
roller
seals
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.)
Granted
Application number
EP83101324A
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German (de)
English (en)
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EP0087651B1 (fr
EP0087651A3 (en
EP0087651B2 (fr
Inventor
Kurt Held
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Publication of EP0087651A2 publication Critical patent/EP0087651A2/fr
Publication of EP0087651A3 publication Critical patent/EP0087651A3/de
Publication of EP0087651B1 publication Critical patent/EP0087651B1/fr
Application granted granted Critical
Publication of EP0087651B2 publication Critical patent/EP0087651B2/fr
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    • 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
    • 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

Definitions

  • the invention relates to a device for supporting the press belts on double belt presses according to the preamble of the preceding claim.
  • Double belt presses are used to exert a surface pressure on plate-shaped workpieces or on material webs that are continuously guided through the machine with the supply or removal of heat to or from the pressed material.
  • continuously operating double belt presses allow the pressed goods to move continuously and thus to overlap the pressing and transport process, but in particular to exert surface pressure on any length of material.
  • Presses of known type work, as far as they have proven to be permanently reliable in the past, either according to the fluid cushion principle (cf. DBP 2 737 629, DE-AS 2 722 262, US Pat. No. 2,528,168) or according to the roller principle.
  • Disadvantages of the fluid cushion machines are their high energy requirement at higher pressures from approximately 200 N / cm 2 and the need existing there to fully cover the working width and length with press material or to provide partially switchable cushions which are prone to failure.
  • the disadvantage of the roller-mounted double belt presses is the Hertzian pressure that occurs between the support rollers and the press belts, which limits the surface pressures that can be reliably controlled to a technically uninteresting area.
  • both the fluid cushion and the roller bed pressure are applied to the material to be pressed, with which an overall increased surface pressure is achieved with the safe operation of such a double belt press.
  • the roller or fluid pressure can also be applied individually.
  • a fluid pressure medium is used in the pressure chamber generates a pressure that acts on the rollers via the support bearing strips of the roller bed. This adds this pressure to the pressure already mechanically applied to the roller bed.
  • a surface pressure acting on the press belts is also generated in the shape compensation space with the aid of a fluid pressure medium. Since the compressive force is an undirected force and acts in all directions, the pressure transferred from the roller bed to the press belt via Hertzian pressure is reduced by this pressure prevailing in the shape-compensating space, ie the press belt is relieved again. The Hertzian pressure exerted by the roller bed is thus kept smaller than the squeeze limit of the press belt, which is determined by the material used. On the other hand, however, the surface pressure prevailing in the shape-compensating space also acts on the press belt, so that the total pressure present in the shape-compensating space due to Hertzian pressure and fluid pressure medium acts on the material to be pressed.
  • full-needle needle sleeves are arranged in rows offset from one another on known common axes in such a way that their radial distances are only so large that the cavities between the heating plate, support, press belt and needle sleeves have it filled by a shaped body that allows the formation of gaps of the same, small thickness between the heating plate, support, press belt and needle sleeves, into which liquid lubricant can penetrate under capillary action, but on the other hand ensures through its shape that it has the necessary turning and sliding movements not hindered between press belt and needle sleeves.
  • the fluid or gaseous pressure medium and also the seals necessary for maintaining the pressure cushion can be dispensed with if the liquid lubrication is maintained by replacing the drag losses of lubricant which have arisen at the outlet of the roller bed.
  • the gap height of the machine is dimensioned so that the rollers have no contact with the press belt and only the roller bed of the lower press belt absorbs any sag of the belt / press package.
  • the different pressures adapted to the material to be pressed are set in the individual fluid cushions.
  • the shape compensation space comprising the entire roller bed and the pressure chamber are divided into individual and mutually independent pressurized fluid cushions that are sealed against one another.
  • the needle rollers 2 which are usually arranged in rows parallel to the feed direction of the press belts 6 between support bearing strips 1 on support shafts 12, are thus half a roller width apart offset so that every second support bearing bore 5 is replaced by an opening 3 which is larger by the capillary gap height 4 than the diameter of the needle roller 2.
  • the bearing bore 5 and opening 3 are longitudinally offset from one another in the tape feed direction, so that Needle rollers 2 installed between two bearing bores 5 are offset in the transverse direction.
  • the cavity between two needle rollers 2 is filled by a filler 11 in such a way that to the adjacent needle rollers 2, the heating plate 13 and the support bearing strips attached therein 1 gaps with a suitably dimensioned capillary gap height 4 are formed, into which liquid or semi-liquid lubricants 8 are drawn in under capillary action.
  • liquid or semi-liquid lubricant 8 is now added to the belt or roller surfaces of the first row of rollers at the entry of the press belts 6 into the roller bed 7, it is distributed across the roller gap 9 and the remaining excess of two adjacent needle rollers 2 becomes fed through the support bearing gap 10 in the middle of the next following needle roller 2 in the direction of tape feed, where the process described is repeated.
  • an additional shape compensation space 19 and a pressure chamber 15 with seals 16 are provided over the entire roller bed 7 and can be acted upon by fluid pressure media.
  • the shape compensation space 19 is limited at the top by the heating plate 13 and at the bottom by the press belt 6.
  • the pressure chamber 15 is bounded at the bottom by the heating plate 13 and at the top by the closure 18. This makes it possible, additionally or optionally, to exert a surface pressure on the press belt 6 in addition to the Hertzian pressure.
EP83101324A 1982-02-27 1983-02-11 Dispositif pour soutenir les bandes de pressage par des rouleaux dans des presses à double bande Expired - Lifetime EP0087651B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3207156 1982-02-27
DE3207156 1982-02-27

Publications (4)

Publication Number Publication Date
EP0087651A2 true EP0087651A2 (fr) 1983-09-07
EP0087651A3 EP0087651A3 (en) 1984-11-28
EP0087651B1 EP0087651B1 (fr) 1988-04-27
EP0087651B2 EP0087651B2 (fr) 1994-06-08

Family

ID=6156908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101324A Expired - Lifetime EP0087651B2 (fr) 1982-02-27 1983-02-11 Dispositif pour soutenir les bandes de pressage par des rouleaux dans des presses à double bande

Country Status (3)

Country Link
US (1) US4485733A (fr)
EP (1) EP0087651B2 (fr)
JP (1) JPS58199698A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014052998A1 (fr) * 2012-10-05 2014-04-10 Berndorf Band Gmbh Presse a double bande
WO2014052999A1 (fr) * 2012-10-05 2014-04-10 Berndorf Band Gmbh Presse à double bande dotée d'au moins deux bandes

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3424599A1 (de) * 1984-07-04 1986-01-09 Fa. Theodor Hymmen, 4800 Bielefeld Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke
DE3534478C2 (de) * 1985-09-27 1995-01-26 Held Kurt Doppelbandpresse zum kontinuierlichen Verpressen von Werkstoffbahnen bei erhöhten Temperaturen
US4794855A (en) * 1986-08-05 1989-01-03 Mitsubishi Rayon Engineering Co., Ltd. Continuous press machine
CN1009443B (zh) * 1986-11-14 1990-09-05 库特·赫尔德·法布里肯特 制造复合木材制品板的方法和设备
CN1017881B (zh) * 1987-12-16 1992-08-19 库特·赫尔德·法布里肯特 制造木材板的设备和方法
CA2036755C (fr) * 1990-03-30 1998-06-02 Friedrich Bernd Bielfeldt Presse fonctionnant en continu
US5213819A (en) * 1990-03-30 1993-05-25 Maschinenfabrik, J. Dieffenbacher Gmbh & Co. Continuously operating press
DE4128024A1 (de) * 1991-08-23 1993-02-25 Held Kurt Kontinuierlich arbeitende doppelbandpresse
DE19615771A1 (de) * 1996-04-20 1997-10-23 Hymmen Theodor Gmbh Doppelbandpresse zum Herstellen und/oder zum Beschichten von bahn- oder plattenförmigen Werkstücken aller Art
US6908295B2 (en) * 2000-06-16 2005-06-21 Avery Dennison Corporation Process and apparatus for embossing precise microstructures and embossing tool for making same
FI123522B (fi) * 2005-04-13 2013-06-14 Raute Oyj Puristinlaitteisto levytuotteiden puristamiseksi
GB2498994B (en) 2012-02-02 2014-03-19 Trackwise Designs Ltd Method of making a flexible circuit
RU2680505C1 (ru) 2013-11-22 2019-02-21 Сайтек Индастриз Инк. Способ и система для пропитки волокон с получением препрега
CN114585503A (zh) * 2019-10-18 2022-06-03 瓦林格创新股份有限公司 用于制造建筑镶板的连续压制装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459295A (en) * 1944-05-06 1949-01-18 Per F Skoog Apparatus for the flow manufacture of sheet material
DE1262080B (de) * 1966-05-06 1968-02-29 Alfred Jakob Zwicky Hydrostatisch entlastetes Radialwaelzlager
FR2269383A1 (en) * 1974-05-02 1975-11-28 Held Kg Adolf Endless laminates prodn - by moving liquefied pressure medium between two facing drums of metal endless belts
FR2330532A1 (fr) * 1974-08-27 1977-06-03 Mets Konstrukt Presse continue
DE2729263A1 (de) * 1977-06-29 1979-01-04 Siempelkamp Gmbh & Co Vorrichtung zum kontinuierlichen pressen von pressgutmatten im zuge der herstellung von spanplatten, faserplatten u.dgl.
DE2735142A1 (de) * 1977-08-04 1979-02-15 Kurt Held Pressbandanordnung an doppelbandpressen
DE2737629A1 (de) * 1977-08-20 1979-02-22 Kurt Held Kontinuierliche laminiermaschine
DE2853285A1 (de) * 1977-12-13 1979-06-21 Hymmen Kg Theodor Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke mit mindestens einem umlaufenden pressband
DE3135031C2 (de) * 1981-09-04 1983-07-21 Held, Kurt, 7218 Trossingen Doppelbandpresse zur Ausübung einer Flächenpressung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981307A (en) * 1957-06-24 1961-04-25 Jr Neil Malarkey Press machine
US3808092A (en) * 1972-03-01 1974-04-30 Beloit Corp Extended fibrous web press nip structure with contoured leading and trailing sills
DE2243465C3 (de) * 1972-09-04 1979-11-22 Kuesters, Eduard, 4150 Krefeld Kontinuierlich arbeitende Presse
DE2421955A1 (de) * 1974-05-07 1975-12-04 Sandco Ltd Bandpresse, insbesondere hydraulische doppelbandpresse, fuer fortlaufend zu behandelndes material
DE2907087C3 (de) * 1979-02-23 1981-10-15 Held, Kurt, 7218 Trossingen Gleitflächendichtung an einer kontinuierlichen Laminiermaschine
DE2937410A1 (de) * 1979-09-15 1981-04-02 Into Solymar Benalmadena Costa Malaga Kerttula Kontinuierlich arbeitende plattenpresse

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459295A (en) * 1944-05-06 1949-01-18 Per F Skoog Apparatus for the flow manufacture of sheet material
DE1262080B (de) * 1966-05-06 1968-02-29 Alfred Jakob Zwicky Hydrostatisch entlastetes Radialwaelzlager
FR2269383A1 (en) * 1974-05-02 1975-11-28 Held Kg Adolf Endless laminates prodn - by moving liquefied pressure medium between two facing drums of metal endless belts
FR2330532A1 (fr) * 1974-08-27 1977-06-03 Mets Konstrukt Presse continue
DE2729263A1 (de) * 1977-06-29 1979-01-04 Siempelkamp Gmbh & Co Vorrichtung zum kontinuierlichen pressen von pressgutmatten im zuge der herstellung von spanplatten, faserplatten u.dgl.
DE2735142A1 (de) * 1977-08-04 1979-02-15 Kurt Held Pressbandanordnung an doppelbandpressen
DE2737629A1 (de) * 1977-08-20 1979-02-22 Kurt Held Kontinuierliche laminiermaschine
DE2853285A1 (de) * 1977-12-13 1979-06-21 Hymmen Kg Theodor Vorrichtung zum aufbringen einer flaechenpressung auf fortschreitende werkstuecke mit mindestens einem umlaufenden pressband
DE3135031C2 (de) * 1981-09-04 1983-07-21 Held, Kurt, 7218 Trossingen Doppelbandpresse zur Ausübung einer Flächenpressung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014052998A1 (fr) * 2012-10-05 2014-04-10 Berndorf Band Gmbh Presse a double bande
WO2014052999A1 (fr) * 2012-10-05 2014-04-10 Berndorf Band Gmbh Presse à double bande dotée d'au moins deux bandes
AT520169A5 (de) * 2012-10-05 2019-01-15 Berndorf Band Gmbh Doppelbandpresse
AT520169B1 (de) * 2012-10-05 2019-05-15 Berndorf Band Gmbh Doppelbandpresse

Also Published As

Publication number Publication date
EP0087651B1 (fr) 1988-04-27
EP0087651A3 (en) 1984-11-28
JPS58199698A (ja) 1983-11-21
US4485733A (en) 1984-12-04
EP0087651B2 (fr) 1994-06-08
JPH0229440B2 (fr) 1990-06-29

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