EP0394655B1 - Method and device for heating the press band of a press - Google Patents
Method and device for heating the press band of a press Download PDFInfo
- Publication number
- EP0394655B1 EP0394655B1 EP90104713A EP90104713A EP0394655B1 EP 0394655 B1 EP0394655 B1 EP 0394655B1 EP 90104713 A EP90104713 A EP 90104713A EP 90104713 A EP90104713 A EP 90104713A EP 0394655 B1 EP0394655 B1 EP 0394655B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- pressure medium
- pressure chamber
- press
- pressing 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 12
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 4
- 238000009833 condensation Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000007639 printing Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
- B30B15/064—Press plates with heating or cooling 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 method for heating the driven press belt of a continuously operating press, in which the press pressure exerted by a gas-filled pressure chamber on the working belt of the press belt, the gaseous pressure medium in the effective zone between the pressure plate heated inside and the press belt rear side in one through the pressure plate guided short circuit is moved turbulently and workpieces are conveyed along the pressure chamber from an inlet end to an outlet end by means of the press belt.
- a method of this type is known (EP 0 295 427 A1) in which the pressure is limited by a fluid in a circumferentially sealed pressure chamber which is delimited on one side by a pressure plate and on the other side by the press belt of a press, in particular a double belt press Print medium is generated and this print medium is positively movable.
- the pressure medium is moved in the active zone at flow speeds of 2 to 50 m / sec, preferably 20 to 40 m / sec in the case of gaseous pressure media.
- the extent of the heat transfer capacity of the pressure medium can be controlled by varying the flow rate and / or the operating pressure.
- the heat transfer capacity of the pressure medium is increased by a higher flow rate and / or by an increased operating pressure.
- the invention is based on the object of designing a method of the type mentioned at the outset and a device for this method in such a way that the amount of heat which can be transferred in a pressure chamber (a pressure pad) of a press, in particular a double belt press, is increased with rapidly moving fluid pressure media, that a high amount of heat can be transferred even in the lower pressure ranges.
- This object is achieved in that steam is added to the gaseous pressure medium before entering the pressure chamber, the steam-air mixture is applied to the back of the press belt in the pressure chamber and a droplet condensation is generated with the evaporation heat released, so that the liquid droplets are swirled by the turbulent flow and evaporated again due to the existing heating before the pressure medium emerges from the pressure chamber and are absorbed by the pressure medium.
- the partial amount of steam that is mixed with the gaseous pressure medium is adjustable.
- the press belt preferably made of steel, which is cooled in the inlet area of the pressure chamber by the not yet heated product, acts as a condenser in the area of the pressure chamber near the inlet of the pressure medium, while the product, which is heated by the heat of condensation released, also releases heat to the press belt again that the heated press belt acts before the air flow emerges from the pressure chamber as an evaporator for the water droplets that have deposited on the back of the press belt.
- the air flow used as pressure medium can be saturated with water vapor before entering the pressure chamber.
- FIGS. 1 to 3 of the drawings Embodiments of devices for carrying out the method according to the invention are shown in FIGS. 1 to 3 of the drawings and are described below.
- Fig. 1 shows a continuously operating press 1, which is equipped with a preferably made of steel endless press belt 2, which is guided over deflection rollers, not shown, and driven by the deflection rollers.
- the press belt moves in the direction of arrow 3.
- workpieces 4 for example material webs, are processed and continuously moved by means of the driven press belt 2 along a pressure chamber 5, which passes through the back of the working belt of the press belt, through a pressure plate 6 and through itself on the work strand supporting sealing strips 7 is limited, these sealing strips being fixed in a groove in the pressure plate 6.
- the printing plate 6 is heated and has heating means integrated in the printing plate.
- the pressure in the pressure chamber 5 is generated by a pressure medium which is moved turbulently in the pressure chamber and is guided in a circuit.
- a U-shaped channel 8 is provided, which in the exemplary embodiment shown extends partially outside the pressure plate 6.
- the channel 8 has a conveying device 9 for the circulation of the pressure medium, which can be designed as a fan.
- an evaporator 10 is provided in the duct, which is arranged on the suction side of the fan in the exemplary embodiment shown.
- Air is used as the pressure medium, and 10 water vapor is added by means of the evaporator.
- the pressure chamber 5 is designed in the form of a gap in the region of the active zone between the underside of the pressure plate 6 and the opposite rear side of the press belt.
- the gap thickness is the same over the entire length of the pressure chamber.
- the water vapor-air mixture is introduced into the pressure chamber 5 through the vertically extending channel line 11 and flows out of the pressure chamber 5 through the channel line 12.
- the pressure chamber can have at least two zones of different gap thickness in the running direction of the press belt.
- the entry of the Water vapor-air mixture adjacent zone of the pressure chamber could be provided with a gap thickness that is smaller than that in the outlet area. This would result in an increased flow velocity and thus a more intensive heat transfer from the heated pressure plate to the press belt in the inlet area, in which area the amount of heat that is applied to the press belt and thus to the workpiece is suddenly increased by the water vapor condensing on the back of the press belt.
- FIG. 2 shows an embodiment in which the conveying device 9 for the pressure medium and the evaporator 10 are integrated in the pressure plate 13.
- the line strands 14, 15, 16 and 17 form the ring line for the pressure medium, to which a bypass line 18 is arranged, in which the evaporator 10 is provided.
- the amount of the pressure medium passed through the evaporator 10 and thus the partial amount of the liquid vapor / water vapor can be set via fittings 19, 20.
- the evaporator 10 is arranged in a feed line 21 for the gaseous pressure medium.
- the ring lines according to FIGS. 1 and 2 are also equipped with a feed line for the gaseous pressure medium, which, however, is not shown in these figures. This supply line can also be used to compensate for leaks that occur during the pressure medium circuit.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Press Drives And Press Lines (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Forging (AREA)
- Drying Of Solid Materials (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Treatment Of Fiber Materials (AREA)
- Paper (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Beheizen des angetriebenen Preßbandes einer kontinuierlich arbeitenden Presse, bei der der Preßdruck durch eine gasgefüllte Druckkammer auf das Arbeitstrum des Preßbandes ausgeübt, das gasförmige Druckmedium in der Wirkzone zwischen der in ihrem Inneren geheizten Druckplatte und der Preßbandrückseite in einen durch die Druckplatte geführten kurzen Kreislauf turbulent bewegt wird und Werkstücke mittels des Preßbandes längs der Druckkammer von einem Einlaufende zu einem Auslaufende gefördert werden.The invention relates to a method for heating the driven press belt of a continuously operating press, in which the press pressure exerted by a gas-filled pressure chamber on the working belt of the press belt, the gaseous pressure medium in the effective zone between the pressure plate heated inside and the press belt rear side in one through the pressure plate guided short circuit is moved turbulently and workpieces are conveyed along the pressure chamber from an inlet end to an outlet end by means of the press belt.
Es ist ein Verfahren dieser Art bekannt (EP 0 295 427 A1) bei dem in einer umlaufend abgedichteten, auf der einen Seite von einer Druckplatte und auf der anderen Seite von dem Preßband einer Presse, insbesondere einer Doppelbandpresse, begrenzten Druckkammer der Druck durch ein fluides Druckmedium erzeugt wird und dieses Druckmedium zwangsbewegbar ist. Das Druckmedium wird in der Wirkzone mit Strömungsgeschwindigkeiten von 2 bis 50 m/sec, vorzugsweise 20 bis 40 m/sec bei gasförmigen Druckmedien, bewegt.A method of this type is known (EP 0 295 427 A1) in which the pressure is limited by a fluid in a circumferentially sealed pressure chamber which is delimited on one side by a pressure plate and on the other side by the press belt of a press, in particular a double belt press Print medium is generated and this print medium is positively movable. The pressure medium is moved in the active zone at flow speeds of 2 to 50 m / sec, preferably 20 to 40 m / sec in the case of gaseous pressure media.
Bei diesem Verfahren kann das Ausmaß des Wärmeübertragungsvermögens des Druckmediums durch Variation der Strömungsgeschwindigkeit und/oder des Betriebsdruckes gesteuert werden. Das Wärmeübertragungsvermögen des Druckmediums wird durch eine höhere Strömungsgeschwindigkeit und/oder durch einen erhöhten Betriebsdruck gesteigert.In this method, the extent of the heat transfer capacity of the pressure medium can be controlled by varying the flow rate and / or the operating pressure. The heat transfer capacity of the pressure medium is increased by a higher flow rate and / or by an increased operating pressure.
Bei Materialien, zu deren Verdichtung und/oder Aushärtung ein verhältnismäßig geringer Druck in der Druckkammer gefordert wird, muß somit die Umwälzgeschwindigkeit des Druckmediums stark gesteigert werden, was zu erhöhtem Energieverbrauch führt. Es kommt hinzu, daß für bestimmte Aufgaben die nach dem bekannten Verfahren übertragbare Wärmemenge nicht ausreichend ist.In the case of materials for the compression and / or hardening of which a relatively low pressure is required in the pressure chamber, the circulation speed of the pressure medium must therefore be greatly increased, which leads to increased energy consumption. In addition, the amount of heat that can be transferred by the known method is not sufficient for certain tasks.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art und eine Vorrichtung zu diesem Verfahren so zu gestalten, daß die in einer Druckkammer (einem Druckkissen) einer Presse, insbesondere einer Doppelbandpresse, mit schnell bewegten fluiden Druckmitteln übertragbare Wärmemenge so gesteigert wird, daß auch in den unteren Druckbereichen eine hohe Wärmemenge übertragen werden kann.The invention is based on the object of designing a method of the type mentioned at the outset and a device for this method in such a way that the amount of heat which can be transferred in a pressure chamber (a pressure pad) of a press, in particular a double belt press, is increased with rapidly moving fluid pressure media, that a high amount of heat can be transferred even in the lower pressure ranges.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß dem gasförmigen Druckmittel vor Eintritt in die Druckkammer Dampf beigemischt, mit dem Dampf-Luft-Gemisch die Preßbandrückseite in der Druckkammer beaufschlagt und eine Tröpfchenkondensation mit frei werdender Verdampfungswärme erzeugt wird, daß die Flüssigkeitströpfchen durch die turbulente Strömung verwirbelt und aufgrund der vorhandenen Heizung vor dem Austritt des Druckmittels aus der Druckkammer erneut verdampft und von dem Druckmittel aufgenommen werden.This object is achieved in that steam is added to the gaseous pressure medium before entering the pressure chamber, the steam-air mixture is applied to the back of the press belt in the pressure chamber and a droplet condensation is generated with the evaporation heat released, so that the liquid droplets are swirled by the turbulent flow and evaporated again due to the existing heating before the pressure medium emerges from the pressure chamber and are absorbed by the pressure medium.
Bei einer vorteilhaften Ausführungsform des Verfahrens ist die Teilmenge des Dampfes, die dem gasförmigen Druckmittel beigemischt wird, einstellbar.In an advantageous embodiment of the method, the partial amount of steam that is mixed with the gaseous pressure medium is adjustable.
Das im Eintrittsbereich der Druckkammer durch das noch nicht aufgeheizte Produkte gekühlte, vorzugsweise aus Stahl gefertigte Preßband wirkt in dem dem Eintritt des Druckmediums nahen Bereich der Druckkammer als Kondensator, während das durch die frei werdende Kondensationswärme aufgeheizte Produkt auch Wärme an das Preßband wieder abgibt, so daß das aufgeheizte Preßband vor dem Austritt der Luftströmung aus der Druckkammer als Verdampfer für die Wassertröpfchen wirkt, die sich an der Preßbandrückseite niedergeschlagen haben.The press belt, preferably made of steel, which is cooled in the inlet area of the pressure chamber by the not yet heated product, acts as a condenser in the area of the pressure chamber near the inlet of the pressure medium, while the product, which is heated by the heat of condensation released, also releases heat to the press belt again that the heated press belt acts before the air flow emerges from the pressure chamber as an evaporator for the water droplets that have deposited on the back of the press belt.
Um die Wärmeübertragung von einer die Druckkammer an einer Seite begrenzenden, geheizten Druckplatte oder von einer anderen Heizeinrichtung auf das Preßband zu erhöhen, kann der als Druckmedium verwendete Luftstrom vor dem Eintritt in die Druckkammer mit Wasserdampf gesättigt werden.In order to increase the heat transfer from a heated pressure plate bounding the pressure chamber on one side or from another heating device to the press belt, the air flow used as pressure medium can be saturated with water vapor before entering the pressure chamber.
Weitere Merkmale der Erfindung ergeben sich aus den UnteransprüchenFurther features of the invention emerge from the subclaims
Ausführungsbeispiele von Vorrichtungen zur Durchführung des erfindungsgemäßen Verfahrens sind in den Fig. 1 bis 3 der Zeichnungen dargestellt und werden im folgenden beschrieben.Embodiments of devices for carrying out the method according to the invention are shown in FIGS. 1 to 3 of the drawings and are described below.
Die Fig. 1 zeigt eine kontinuierlich arbeitende Presse 1, die mit einem vorzugsweise aus Stahl gefertigten endlosen Preßband 2 ausgerüstet ist, das über nicht dargestellte Umlenkwalzen geführt und durch die Umlenkwalzen angetrieben wird. Das Preßband bewegt sich in Richtung des Pfeiles 3. Mittels der Presse werden Werkstücke 4, z.B. Werkstoffbahnen, bearbeitet und mittels des angetriebenen Preßbandes 2 längs einer Druckkammer 5 kontinuierlich bewegt, die durch die Rückseite des Arbeitstrums des Preßbandes, durch eine Druckplatte 6 und durch sich am Arbeitstrum abstützende Dichtungsleisten 7 begrenzt wird, wobei diese Dichtungsleisten in einer Nut der Druckplatte 6 festgelegt sind. Die Druckplatte 6 wird aufgeheizt und weist in die Druckplatte integrierte Heizmittel auf.Fig. 1 shows a continuously operating
Der Druck in der Druckkammer 5 wird durch ein Druckmittel erzeugt, das in der Druckkammer turbulent bewegt und in einem Kreislauf geführt wird. Hierzu ist ein U-förmig ausgebildeter Kanal 8 vorgesehen, der in dem dargestellten Ausführungsbeispiel teilweise außerhalb der Druckplatte 6 verläuft. Der Kanal 8 weist für die Umwälzung des Druckmediums eine Fördervorrichtung 9 auf, die als Ventilator ausgebildet sein kann. Ferner ist in dem Kanal ein Verdampfer 10 vorgesehen, der in dem dargestellten Ausführungsbeispiel an der Saugseite des Ventilators angeordnet ist.The pressure in the
Als Druckmedium wird Luft verwendet, der mittels des Verdampfers 10 Wasserdampf zugesetzt wird.Air is used as the pressure medium, and 10 water vapor is added by means of the evaporator.
In dem Ausführungsbeispiel nach der Fig. 1 ist die Druckkammer 5 im Bereich der Wirkzone zwischen der Unterseite der Druckplatte 6 und der gegenüberliegenden Rückseite des Preßbandes spaltförmig ausgebildet.In the exemplary embodiment according to FIG. 1, the
In dem dargestellten Ausführungsbeispiel ist die Spaltdicke über die gesamte Länge der Druckkammer gleich.In the illustrated embodiment, the gap thickness is the same over the entire length of the pressure chamber.
Es besteht jedoch auch die Möglichkeit, die Druckkammer so auszubilden, daß sie in Laufrichtung des Preßbandes mehrere Zonen unterschiedlicher Spaltdicke aufweist.However, there is also the possibility of designing the pressure chamber so that it has several zones of different gap thickness in the running direction of the press belt.
Das Wasserdampf-Luftgemisch wird durch den vertikal sich erstreckenden Kanalstrang 11 in die Druckkammer 5 eingeführt und strömt durch den Kanalstrang 12 aus der Druckkammer 5 ab.The water vapor-air mixture is introduced into the
Die Druckkammer kann in Laufrichtung des Preßbandes wenigstens zwei Zonen unterschiedlicher Spaltdicke aufweisen. Die dem Eintritt des Wasserdampf-Luftgemisches benachbarte Zone der Druckkammer könnte mit einer Spaltdicke versehen sein, die kleiner ist als die im Austrittsbereich. Hierdurch würde im Eintrittsbereich eine erhöhte Strömungsgeschwindigkeit und damit eine intensivere Wärmeübertragung von der geheizten Druckplatte auf das Preßband erzielt, wobei in diesem Bereich durch den an der Preßbandrückseite kondensierenden Wasserdampf die Wärmemenge, die dem Preßband und damit dem Werkstück aufgegeben wird, sprunghaft erhöht wird.The pressure chamber can have at least two zones of different gap thickness in the running direction of the press belt. The entry of the Water vapor-air mixture adjacent zone of the pressure chamber could be provided with a gap thickness that is smaller than that in the outlet area. This would result in an increased flow velocity and thus a more intensive heat transfer from the heated pressure plate to the press belt in the inlet area, in which area the amount of heat that is applied to the press belt and thus to the workpiece is suddenly increased by the water vapor condensing on the back of the press belt.
Es ist aber auch möglich, die Spaltdicke im Eintrittsbereich des Druckmittels großer auszubilden als im Austrittsbereich.However, it is also possible to make the gap thickness larger in the inlet area of the pressure medium than in the outlet area.
In der Fig. 2 ist ein Ausführungsbeispiel aufgezeigt, bei dem die Fördervorrichtung 9 für das Druckmittel und der Verdampfer 10 in die Druckplatte 13 integriert sind.2 shows an embodiment in which the
Bei dieser Konstruktion bilden die Leitungsstränge 14,15,16 und 17 die Ringleitung für das Druckmittel, zu der eine Bypassleitung 18 angeordnet ist, in der der Verdampfer 10 vorgesehen ist.In this construction, the
Über Armaturen 19,20 ist die Menge des über den Verdampfer 10 geleiteten Druckmittels und damit die Teilmenge des Flüssigkeitsdampfes/Wasserdampfes einstellbar.The amount of the pressure medium passed through the
Bei dem Ausführungsbeispiel nach der Fig. 3 ist in Abwandlung des Ausführungsbeispiels nach der Fig. 1 der Verdampfer 10 in einer Zuführleitung 21 für das gasförmige Druckmittel angeordnet.
Die Ringleitungen nach den Fig. 1 und 2 sind ebenfalls mit einer Zuführleitung für das gasförmige Druckmittel ausgerüstet, die jedoch in diesen Figuren nicht dargestellt ist. Mittels dieser Zuführleitung können auch Leckagen, die beim Kreislauf des Druckmittels auftreten, ausgeglichen werden.In the exemplary embodiment according to FIG. 3, in a modification of the exemplary embodiment according to FIG. 1, the
The ring lines according to FIGS. 1 and 2 are also equipped with a feed line for the gaseous pressure medium, which, however, is not shown in these figures. This supply line can also be used to compensate for leaks that occur during the pressure medium circuit.
- 11
- PressePress
- 22nd
- PreßbandPress belt
- 33rd
- Pfeilarrow
- 44th
- Werkstückworkpiece
- 55
- DruckkammerPressure chamber
- 66
- Druckplatteprinting plate
- 77
- DichtungsleisteSealing strip
- 88th
- Kanalchannel
- 99
- FördervorrichtungConveyor
- 1010th
- VerdampferEvaporator
- 1111
- KanalstrangSewer line
- 1212
- KanalstrangSewer line
- 1313
- Druckplatteprinting plate
- 1414
- LeitungsstrangWiring harness
- 1515
- LeitungsstrangWiring harness
- 1616
- LeitungsstrangWiring harness
- 1717th
- LeitungsstrangWiring harness
- 1818th
- BypassleitungBypass line
- 1919th
- ArmaturFitting
- 2020th
- ArmaturFitting
- 2121
- ZuführleitungSupply line
Claims (3)
- A method of heating the driven pressing belt of a continuously operating press, in which press the pressing pressure is applied by a gas-filled pressure chamber to the working run of the pressing belt, the gaseous pressure medium is turbulently moved in the active zone between the pressure plate which is heated in its interior and the rear side of the pressing belt in a short circuit which is passed through the pressure plate, and workpieces are conveyed by means of the pressing belt along the pressure chamber from an entry end to an exit end, characterised in that vapour is mixed with the gaseous pressure medium before passing into the pressure chamber (5), the rear side of the pressing belt is acted upon by the vapour-air mixture in the pressure chamber (5), and droplet condensation is produced with heat of evaporation which is given off, that the liquid droplets are put into a turbulent condition by the turbulent flow and evaporated again by virtue of the heating provided before the pressure medium issues from the pressure chamber and picked up by the pressure medium.
- A method according to claim 1 characterised in that the amount of vapour which is mixed with the gaseous pressure medium is adjustable.
- Apparatus for carrying out the method according to claim 2 characterised in that a conveyor device (9) for the pressure medium is provided in a ring conduit for circulation of the pressure medium, which conduit extends in part outside or inside the pressure plate (6, 13), and a vaporiser (10) is disposed in a by-pass conduit (18) of the ring conduit and the amount of the pressure medium which is passed by way of the vaporiser (10) is adjustable by valve devices (19, 20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90104713T ATE90910T1 (en) | 1989-04-25 | 1990-03-13 | METHOD AND DEVICE FOR HEATING THE PRESS BELTS OF A PRESS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3913555A DE3913555A1 (en) | 1989-04-25 | 1989-04-25 | METHOD AND DEVICE FOR HEATING THE PRESS BELT OF A PRESS |
| DE3913555 | 1989-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0394655A1 EP0394655A1 (en) | 1990-10-31 |
| EP0394655B1 true EP0394655B1 (en) | 1993-06-23 |
Family
ID=6379392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90104713A Expired - Lifetime EP0394655B1 (en) | 1989-04-25 | 1990-03-13 | Method and device for heating the press band of a press |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US5094308A (en) |
| EP (1) | EP0394655B1 (en) |
| JP (1) | JPH0832377B2 (en) |
| CN (1) | CN1022301C (en) |
| AT (1) | ATE90910T1 (en) |
| DE (1) | DE3913555A1 (en) |
| ES (1) | ES2041460T3 (en) |
| FI (1) | FI94328C (en) |
| LT (1) | LT3783B (en) |
| LV (1) | LV11112B (en) |
| RU (1) | RU1829963C (en) |
| UA (1) | UA13389A1 (en) |
| ZA (1) | ZA903083B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19815863A1 (en) * | 1998-04-08 | 1999-10-14 | Peters W Maschf | Printing plate arrangement for joining together a plurality of material webs each comprising at least one smooth web and / or at least one corrugated web to form a corrugated cardboard web |
| US6908295B2 (en) * | 2000-06-16 | 2005-06-21 | Avery Dennison Corporation | Process and apparatus for embossing precise microstructures and embossing tool for making same |
| DE10114381A1 (en) * | 2001-03-23 | 2002-10-10 | Metso Paper Inc | Process for the continuous production of chipboard and similar sheet-like board materials and suitable double belt press |
| WO2014052999A1 (en) * | 2012-10-05 | 2014-04-10 | Berndorf Band Gmbh | Double belt press comprising at least two belts |
| US10421305B2 (en) * | 2015-05-21 | 2019-09-24 | Chums, Inc. | Feed-through thermal pressing system and associated components |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2135763A (en) * | 1935-11-13 | 1938-11-08 | Frederick A Nicholson | Endless traveling platen fluid pressure press |
| US2459295A (en) * | 1944-05-06 | 1949-01-18 | Per F Skoog | Apparatus for the flow manufacture of sheet material |
| US2437680A (en) * | 1945-01-11 | 1948-03-16 | Armstrong Cork Co | Moisture control device |
| US2909804A (en) * | 1955-09-16 | 1959-10-27 | Perry G Means | Continuous hot pressing machine for the manufacture of compressed boards |
| US3580795A (en) * | 1966-10-05 | 1971-05-25 | John E Eichenlaub | Apparatus for welding heat sealable sheet material |
| DE2053351C3 (en) * | 1970-10-30 | 1974-11-07 | Wilhelm Mende & Co, 3371 Teichhuette | Device for the production of an endless thin chipboard sheet |
| DE2904067A1 (en) * | 1979-02-03 | 1980-12-18 | Friz Helmut Dipl Ing | MOLD PRESS |
| DE2922151A1 (en) * | 1979-05-31 | 1980-12-11 | Sandvik Conveyor Gmbh | DOUBLE BAND PRESS |
| DE2937410A1 (en) * | 1979-09-15 | 1981-04-02 | Into Solymar Benalmadena Costa Malaga Kerttula | CONTINUOUSLY WORKING PLATE PRESS |
| DE3007493C2 (en) * | 1980-02-28 | 1982-04-29 | G. Siempelkamp Gmbh & Co, 4150 Krefeld | Press plate for heated presses |
| JPS62104700A (en) * | 1985-10-31 | 1987-05-15 | Meiki Co Ltd | Heating control device for hot press |
| JPS62212111A (en) * | 1986-03-14 | 1987-09-18 | Mitsubishi Rayon Eng Co Ltd | Continuous pressurization method |
| US4794855A (en) * | 1986-08-05 | 1989-01-03 | Mitsubishi Rayon Engineering Co., Ltd. | Continuous press machine |
| DE3709958A1 (en) * | 1987-03-26 | 1988-10-13 | Santrade Ltd | Double-belt press |
| DE3719976A1 (en) * | 1987-06-15 | 1988-12-29 | Hymmen Theodor Gmbh | METHOD AND DEVICE FOR APPLYING A SURFACE PRESS TO WORKPIECE DRIVEN BY PRESSURE BELTS |
-
1989
- 1989-04-25 DE DE3913555A patent/DE3913555A1/en active Granted
-
1990
- 1990-03-13 AT AT90104713T patent/ATE90910T1/en not_active IP Right Cessation
- 1990-03-13 ES ES199090104713T patent/ES2041460T3/en not_active Expired - Lifetime
- 1990-03-13 EP EP90104713A patent/EP0394655B1/en not_active Expired - Lifetime
- 1990-04-20 US US07/513,312 patent/US5094308A/en not_active Expired - Fee Related
- 1990-04-24 FI FI902059A patent/FI94328C/en not_active IP Right Cessation
- 1990-04-24 UA UA4743700A patent/UA13389A1/en unknown
- 1990-04-24 RU SU904743700A patent/RU1829963C/en active
- 1990-04-24 CN CN90102345A patent/CN1022301C/en not_active Expired - Fee Related
- 1990-04-24 ZA ZA903083A patent/ZA903083B/en unknown
- 1990-04-25 JP JP2107708A patent/JPH0832377B2/en not_active Expired - Lifetime
-
1993
- 1993-12-10 LV LVP-93-1328A patent/LV11112B/en unknown
-
1994
- 1994-01-31 LT LTIP1839A patent/LT3783B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| LV11112B (en) | 1996-08-20 |
| LV11112A (en) | 1996-04-20 |
| UA13389A1 (en) | 1997-02-28 |
| FI94328B (en) | 1995-05-15 |
| ATE90910T1 (en) | 1993-07-15 |
| JPH0832377B2 (en) | 1996-03-29 |
| FI902059A0 (en) | 1990-04-24 |
| FI94328C (en) | 1995-08-25 |
| DE3913555A1 (en) | 1990-10-31 |
| ZA903083B (en) | 1991-01-30 |
| CN1022301C (en) | 1993-10-06 |
| DE3913555C2 (en) | 1991-03-21 |
| JPH02299799A (en) | 1990-12-12 |
| US5094308A (en) | 1992-03-10 |
| LT3783B (en) | 1996-03-25 |
| EP0394655A1 (en) | 1990-10-31 |
| ES2041460T3 (en) | 1993-11-16 |
| CN1046702A (en) | 1990-11-07 |
| LTIP1839A (en) | 1995-08-25 |
| RU1829963C (en) | 1993-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AT392990B (en) | METHOD AND DEVICE FOR MECHANICAL-THERMAL DRAINAGE OF A FIBER web | |
| EP0295427B1 (en) | Method and device for applying a surface pressure to work pieces driven by pressbelts | |
| EP0216226B1 (en) | Method and apparatus for the continuous pressing of webs of material at elevated temperatures | |
| EP0528372A1 (en) | Apparatus for contactless guiding of a coated web | |
| EP0448983A2 (en) | Apparatus for blowing onto the two sides of a web-like material | |
| DE3505256A1 (en) | DEVICE FOR THE CONTACT-FREE LEADING OF TRACKS, IN PARTICULAR METAL BANDS, BY MEANS OF A GAS MEDIUM | |
| AT394739B (en) | DEVICE FOR DRAINING A CELLULAR RAIL OR A MATERIAL RAIL FOR PAPER PRODUCTION | |
| EP0394655B1 (en) | Method and device for heating the press band of a press | |
| DE19836773A1 (en) | Continuous press for the production of chipboards and fiberboards has a heated press stretch within the press stage lengths and a movable cooled press stage to set the temperature according to the bonding agent hardening | |
| EP0412255B1 (en) | Heating device for corrugated board making plant | |
| DE69818560T2 (en) | Device for the continuous drying of a porous web | |
| EP0842040B1 (en) | Double band press for producing and/or coating web-shaped or plate-shaped workpieces of all kinds | |
| DE4012176C2 (en) | Device for treating a coated substrate web | |
| DD212414A1 (en) | COOLING CHANNEL FOR ARTICLES MADE WITH CHOCOLATE MASS OR SIMILAR MASSES | |
| DE112008000152T5 (en) | diverter | |
| DE1760105C3 (en) | Device for the production of a random fiber fleece from different types of fibers | |
| CH615714A5 (en) | ||
| DE19750847C1 (en) | Cooling process for hot-pressed boards | |
| DE2217667A1 (en) | SEALING DEVICE FOR A TAPE DAMPER | |
| EP1079961A1 (en) | Method and device for producing shaped bodies | |
| DE2130641C3 (en) | Double belt press | |
| EP0177917B1 (en) | Tunnel furnace with two paralel ducts | |
| DD202207A5 (en) | DEVICE FOR HEATING AND DRYING SHOULDERS, IN PARTICULAR CRUMBLED PLASTIC DEVICES | |
| CH690912A5 (en) | Nozzle with square or rectangular cross-section. | |
| DE102005010321A1 (en) | veneer dryer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH ES FR GB IT LI NL SE |
|
| 17P | Request for examination filed |
Effective date: 19900925 |
|
| 17Q | First examination report despatched |
Effective date: 19920514 |
|
| ITF | It: translation for a ep patent filed | ||
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH ES FR GB IT LI NL SE |
|
| REF | Corresponds to: |
Ref document number: 90910 Country of ref document: AT Date of ref document: 19930715 Kind code of ref document: T |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19930707 |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2041460 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| EAL | Se: european patent in force in sweden |
Ref document number: 90104713.4 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20000301 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20000320 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20000324 Year of fee payment: 11 Ref country code: BE Payment date: 20000324 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20000327 Year of fee payment: 11 Ref country code: CH Payment date: 20000327 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20000330 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20000331 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010313 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010313 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010314 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010314 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010331 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010331 |
|
| BERE | Be: lapsed |
Owner name: FIRMA THEODOR HYMMEN Effective date: 20010331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011001 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20010313 |
|
| EUG | Se: european patent has lapsed |
Ref document number: 90104713.4 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011130 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20011001 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20030203 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050313 |