EP0067341B1 - Continuous press with apparatus for applying a surface pressure - Google Patents

Continuous press with apparatus for applying a surface pressure Download PDF

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Publication number
EP0067341B1
EP0067341B1 EP82104685A EP82104685A EP0067341B1 EP 0067341 B1 EP0067341 B1 EP 0067341B1 EP 82104685 A EP82104685 A EP 82104685A EP 82104685 A EP82104685 A EP 82104685A EP 0067341 B1 EP0067341 B1 EP 0067341B1
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Prior art keywords
rollers
bearing
roller
shafts
press
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German (de)
French (fr)
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EP0067341A2 (en
EP0067341A3 (en
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Kurt Held
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B5/00Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04Presses 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
    • B30B5/06Presses 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
    • B30B5/065Presses 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
    • B30B5/067Presses 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

Definitions

  • the invention relates to a continuously operating press with a device for applying surface pressure according to the preamble of claim 1.
  • DE-OS 2 037 442 describes a press working with an endless belt and counter belt for the continuous production of shaped or pressed materials, which is characterized in that the belts are supported by a series of interacting rollers, each one around the direction of movement the belts are rotatable perpendicular axis and means for adjusting the gap between the two rows of rollers and / or for adjusting a force which biases the two rows of roller elements against a movement which pushes them apart, so that the two rows of roller elements on a between object lying in the endless bands can be set.
  • DE-AS 1 004 368 discloses a continuously operating belt press with at least one flexible, endless belt, preferably made of steel, which is used to transmit pressure to the material to be pressed, and with loose rolling elements which are closely lined up and used to transmit pressure, which is characterized in that that the rolling elements are provided with collar-like, cylindrical extensions and are offset in their longitudinal direction from each other by a collar division and are arranged in such a comb-like manner that they are at least close to one another with the end faces of the extensions.
  • DE-PS 2 157 746 describes a press for exerting a surface pressure on a longitudinal section of a leading web, in particular a press for the continuous production of chipboard and similar materials, in which the web runs along the width between endless, corresponding to the leading direction of the web the web of extending forming tapes is guided and in which rollers rolling between the forming tapes and a support structure provided above and below the web are provided in an endless sequence in the longitudinal plane perpendicular to the web, which transfer the working pressure from the support structure to the forming tapes, the rollers being divided into a plurality of rollers which are short in relation to the web width and, provided with their own guide means, are connected to one another like a chain.
  • roller chain arrangement is made up of many roller chains that are closely adjacent to the web and have independent widths that are independent of one another and have a constant width in the forward direction, each roller chain contains several rollers lying side by side, and the plates are arranged exclusively between them, and the joints containing the plates two adjacent rollers within each roller chain are laterally offset from each other in the forward direction.
  • the subject of CH-PS 327 433 is a device for the continuously progressive pressing of a plate-shaped material with two flexible endless belts which act as pressing surfaces and at the same time as conveyor belts.
  • the pressure on the back of the belts is transmitted by rolling elements made of round bars arranged in movable chains, the rolling elements being shortened with respect to the width of the pressing belts and being arranged offset with respect to one another.
  • DE-OS 2 853 285 relates to a device for applying surface pressure to progressive workpieces with at least one rotating press belt, which can be pressed against the workpiece by several similar rollers arranged in a row with parallel axes, the rollers being mounted in a stationary manner and on their sides facing away from the associated press belt are supported on rolling bodies designed as abutments, which is characterized in that two adjacent rollers are assigned to one or more rolling bodies arranged on a common axis.
  • DE-PS 27 35 142 describes a somewhat different approach to achieving a uniform pressure distribution.
  • an attempt was made to solve this problem by using a multilayer press belt arrangement which consist of several press belts of the same width and which are pushed into one another and matched in terms of their length and thickness to this purpose Thickness exists.
  • this multi-layer press belt arrangement can be supported by a stationary roller bed.
  • this patent specification does not provide any further details of how the roller bed should be designed.
  • FIG. 1 shows a view of the roller bed with continuous shafts seen from above
  • FIG. 2 shows a partial sectional view according to FIG. 1
  • FIG. 3 shows the lubrication of the rollers or rolling elements using a roller bed with divided shafts.
  • the roller bed shown in Fig. 1 is used to apply a surface pressure in a continuously operating press.
  • This continuously operating press is designed as a double belt press and has two double belt units one above the other.
  • Each double belt unit consists of a multilayer belt arrangement guided over a pair of deflection rollers. Between the lower run of the upper multilayer belt arrangement and the upper run of the lower multilayer belt arrangement, the material to be pressed is continuously passed through the double belt press and thereby exposed to the pressing pressure.
  • the pressing pressure exerted in the pressing area of the double belt press is transferred to the upper multilayer belt arrangement from an upper support plate 6 and to the lower multilayer belt arrangement from a lower support plate 6 by means of the rollers 2 of the stationary roller bed to the respective multilayer belt arrangement.
  • the roller bed has a frame-like support body or a support plate 6, in which bearing strips 4 running in the longitudinal direction of the double belt press are attached, with two limiting strips 5 running in the transverse direction at the ends of the support plate 6.
  • the bearing strips 4 are traversed by continuous shafts 1 running in the transverse direction of the double belt press.
  • Rollers 2 mounted on bearing needles 3 are arranged on the shafts between the bearing strips 4.
  • the rollers 2 are offset from one another in rows. As can be seen in FIG. 3, the length of the bearing needles 3 is the same as the length of the rollers 2.
  • roller bed which has split shafts 1.
  • two adjacent bearing strips 4 are traversed by a shaft 1 running in the transverse direction of the double belt press.
  • a single roller 2 is mounted on bearing needles 3.
  • the shafts 1 with the rollers 2 are in turn arranged offset.
  • the bearing needles 3 in turn have the length of the rollers 2.
  • the rows of staggered arrangement of the rollers or rolling elements 2 running on bearing needles 3 on continuous or divided shafts 1 and bearing strips 4 arranged between each row of rollers achieve a particular strength, in particular good bending strength, of the roller bed, which enables this to exert a particularly uniformly distributed surface pressure , a fact which, despite all the different possibilities available according to the state of the art, has so far not been achieved to this extent.
  • the rollers 2 have a spherical, barrel-shaped shape on the outer surface, which corresponds precisely to the course of the bending line of the roller with its largest diameter, which is understood as a carrier with surface load supported multilayer belt arrangement corresponds. Then there is the same Hertzian pressure everywhere along the line of contact in the transverse direction of the double belt press between the barrel-shaped roll and the multi-layer belt arrangement and destructive changes in tension in the multi-layer belt arrangement are largely avoided.
  • seals made of elastomeric materials are arranged in the rollers 2, which seal against the bearing strips 4 sliding.
  • These seals preferably consist of O-rings 8 inserted in the grooves of the rollers 2.
  • the space of the roller bed in which the bearing needles 3 are mounted is sealed to the outside and forms a rolling element filling space which is located between the shafts 1, the O-rings 8, the bearing strips 4 and the rollers 2 extends.
  • This rolling element filling chamber is filled with lubricant.
  • In the bearing strips 4 there are bores or other connecting cavities between the rolling element filling spaces, so that forced circulation lubrication of the rolling surfaces is possible and a constant supply of the rolling elements 2 arranged in the individual rows is ensured with lubricant.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

Die Erfindung betrifft eine kontinuierlich arbeitende Presse mit einer Vorrichtung zum Aufbringen einer Flächenpressung gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to a continuously operating press with a device for applying surface pressure according to the preamble of claim 1.

Bei der Ausübung hoher Flächendrucke auf endlose um Trommeln umlaufende Pressbänder, insbesondere an Doppelbandpressen, besteht das Problem darin, auf die Rückseite der Pressbänder einen gleichmässigen Flächendruck auszuüben, um eine einwandfreie kontinuierliche Herstellung von Schichtstoffen oder Laminaten zu ermöglichen. Zur Lösung dieses Problems sind schon eine ganze Reihe von Vorschlägen gemacht worden, die jedoch teilweise aufwendig sind, erhebliche Nachteile aufweisen und nicht befriedigt haben.When exerting high surface pressures on endless press belts revolving around drums, in particular on double belt presses, the problem is to exert a uniform surface pressure on the back of the press belts in order to enable perfect continuous production of laminates or laminates. A whole series of proposals have already been made to solve this problem, but these are sometimes complex, have considerable disadvantages and have not been satisfied.

So beschreibt die DE-OS 2 037 442 eine mit endlosem Band und Gegenband arbeitende Presse zur kontinuierlichen Herstellung von geformten oder gepressten Werkstoffen, die dadurch gekennzeichnet ist, dass die Abstützung der Bänder durch eine Reihe von zusammenwirkenden Rollen erfolgt, die jeweils um eine zur Bewegungsrichtung der Bänder senkrecht stehende Achse drehbar sind und Mittel zum Einstellen des Spaltes zwischen den beiden Reihen von Rollen und/oder zum Einstellen einer Kraft, welche die beiden Reihen von Rollenelementen gegen eine sie auseinanderdrückende Bewegung vorspannt, so dass die beiden Reihen von Rollenelementen auf ein zwischen den endlosen Bändern liegendes Objekt eingestellt werden können.For example, DE-OS 2 037 442 describes a press working with an endless belt and counter belt for the continuous production of shaped or pressed materials, which is characterized in that the belts are supported by a series of interacting rollers, each one around the direction of movement the belts are rotatable perpendicular axis and means for adjusting the gap between the two rows of rollers and / or for adjusting a force which biases the two rows of roller elements against a movement which pushes them apart, so that the two rows of roller elements on a between object lying in the endless bands can be set.

Aus der DE-AS 1 004 368 ist eine kontinuierlich arbeitende Bandpresse bekannt mit mindestens einem zur Druckübertragung auf das Pressgut dienenden flexiblen, endlosen, vorzugsweise aus Stahl bestehenden Band und mit zur Druckübertragung auf das Band dienenden eng aneinandergereihten losen Wälzkörpern, die dadurch gekennzeichnet ist, daß die Wälzkörper mit bundartigen, zylindrischen Erweiterungen versehen und in ihrer Längsrichtung jeweils um eine Bundteilung zueinander versetzt und derart kammartig ineinandergreifend angeordnet sind, daß sie zum mindesten mit den Stirnseiten der Erweiterungen eng aneinanderliegen.DE-AS 1 004 368 discloses a continuously operating belt press with at least one flexible, endless belt, preferably made of steel, which is used to transmit pressure to the material to be pressed, and with loose rolling elements which are closely lined up and used to transmit pressure, which is characterized in that that the rolling elements are provided with collar-like, cylindrical extensions and are offset in their longitudinal direction from each other by a collar division and are arranged in such a comb-like manner that they are at least close to one another with the end faces of the extensions.

Die DE-PS 2 157 746 beschreibt eine Presse zur Ausübung einer Flächenpressung auf einen Längenabschnitt einer vorlaufenden Bahn, insbesondere eine Presse zur kontinuierlichen Herstellung von Holzspanplatten und ähnlichen Werkstoffen, bei der die Bahn zwischen endlosen, der Vorlaufrichtung der Bahn entsprechend mitumlaufenden, über die Breite der Bahn sich erstreckenden Formbändern geführt ist und bei der zwischen den Formbändern und einer oberhalb und einer unterhalb der Bahn vorgesehenen Stützkonstruktion abrollende, in endloser Folge in der zur Bahn senkrechten Längsebene umlaufende Rollen vorgesehen sind, die den Arbeitsdruck von der Stützkonstruktion auf die Formbänder übertragen, wobei die Rollen in eine Mehrzahl im Verhältnis zur Bahnbreite kurzer Rollen unterteilt sind und, mit einem eigenen Führungsmittel versehen, kettenartig miteinander verbunden sind. Diese Presse ist dadurch gekennzeichnet, dass die Rollenkettenanordnung aus vielen quer zur Bahn dicht benachbarten, in Vorlaufrichtung konstante Breite aufweisenden, voneinander unabhängige Einzelstränge bildenden Rollenketten aufgebaut ist, jede Rollenkette mehrere nebeneinanderliegende Rollen enthält und die Laschen ausschliesslich dazwischen angeordnet sind und die die Laschen enthaltenden Stossstellen zweier nebeneinanderliegender Rollen innerhalb jeder Rollenkette in Vorlaufrichtung seitlich gegeneinander versetzt sind.DE-PS 2 157 746 describes a press for exerting a surface pressure on a longitudinal section of a leading web, in particular a press for the continuous production of chipboard and similar materials, in which the web runs along the width between endless, corresponding to the leading direction of the web the web of extending forming tapes is guided and in which rollers rolling between the forming tapes and a support structure provided above and below the web are provided in an endless sequence in the longitudinal plane perpendicular to the web, which transfer the working pressure from the support structure to the forming tapes, the rollers being divided into a plurality of rollers which are short in relation to the web width and, provided with their own guide means, are connected to one another like a chain. This press is characterized in that the roller chain arrangement is made up of many roller chains that are closely adjacent to the web and have independent widths that are independent of one another and have a constant width in the forward direction, each roller chain contains several rollers lying side by side, and the plates are arranged exclusively between them, and the joints containing the plates two adjacent rollers within each roller chain are laterally offset from each other in the forward direction.

Gegenstand der CH-PS 327 433 ist eine Einrichtung zum kontinuierlich fortschreitenden Pressen eines plattenförmigen Gutes mit zwei als Pressflächen und gleichzeitig als Förderbänder wirksam, flexiblen endlosen Bändern. Der Druch auf die Rückseite der Bänder wird durch in beweglichen Ketten angeordnete Wälzkörper aus Rundstäben übertragen, wobei die Wälzkörper in bezug auf die Breite der Pressbänder verkürzt und gegeneinander versetzt angeordnet sind.The subject of CH-PS 327 433 is a device for the continuously progressive pressing of a plate-shaped material with two flexible endless belts which act as pressing surfaces and at the same time as conveyor belts. The pressure on the back of the belts is transmitted by rolling elements made of round bars arranged in movable chains, the rolling elements being shortened with respect to the width of the pressing belts and being arranged offset with respect to one another.

Schliesslich betrifft die DE-OS 2 853 285 eine Vorrichtung zum aufbringen einer Flächenpressung auf fortschreitende Werkstücke mit mindestens einem umlaufenden Pressband, welches von mehreren gleichartigen, mit parallelen Achsen in einer Reihe angeordneten Rollen an das Werkstück anpressbar ist, wobei die Rollen ortsfest gelagert und an ihren von dem zugehörigen Pressband abgewandten Seiten an als Widerlager ausgebildeten Wälzkörpern abgestützt sind, die dadurch gekennzeichnet ist, dass jeweils zwei nebeneinanderliegende Rollen einem oder mehreren auf einer gemeinsamen Achse angeordneten Wälzkörpern zugeordnet sind.Finally, DE-OS 2 853 285 relates to a device for applying surface pressure to progressive workpieces with at least one rotating press belt, which can be pressed against the workpiece by several similar rollers arranged in a row with parallel axes, the rollers being mounted in a stationary manner and on their sides facing away from the associated press belt are supported on rolling bodies designed as abutments, which is characterized in that two adjacent rollers are assigned to one or more rolling bodies arranged on a common axis.

Einen etwas anderen Lösungsweg zur Erreichung einer gleichmässigen Druckverteilung beschreibt die DE-PS 27 35 142. Dort wurde versucht, dieses Problem durch Anwendung einer mehrschichtigen Pressbänderanordnung zu lösen, die aus mehreren ineinandergeschobenen und hinsichtlich ihrer Länge und Dicke auf diesen Verwendungszweck abgestimmten Pressbändern gleicher Breite und Dicke besteht. Im Pressbereich kann diese mehrschichtige Pressbänderanordnung von einem ortsfesten Rollenbett abgestützt sein. Nähere Angaben wie das Rollenbett ausgestaltet sein soll sind dieser Patentschrift jedoch nicht zu entnehmen.DE-PS 27 35 142 describes a somewhat different approach to achieving a uniform pressure distribution. There, an attempt was made to solve this problem by using a multilayer press belt arrangement which consist of several press belts of the same width and which are pushed into one another and matched in terms of their length and thickness to this purpose Thickness exists. In the pressing area, this multi-layer press belt arrangement can be supported by a stationary roller bed. However, this patent specification does not provide any further details of how the roller bed should be designed.

Zu den eingangs genannten Nachteilen der bekannten Vorrichtungen kommt noch hinzu, dass es mit den so ausgestatteten Doppelbandpreüsen nicht möglich ist, geformte oder gepresste Werkstücke oder Schichtstoffe herzustellen, die eine geringere Breite als die Pressbänder selbst aufweisen.In addition to the disadvantages of the known devices mentioned at the outset, it is also added that it is not possible with the double belt presses equipped in this way to produce shaped or pressed workpieces or laminates which have a smaller width than the press belts themselves.

Ausgehend von dem durch die DE-PS 2 735 142 gebildeten Stand der Technik ist die Aufgabe der Erfindung nun darin zu sehen, eine Vorrichtung zum Aufbringen einer Flächenpressung auf endlose umlaufende Pressbänder zu schaffen, mit der es gleichzeitig möglich ist, Schichtstoff-oder Laminaterzeugnisse herzustellen, die jede beliebige Breite innerhalb der Breite des Pressbandes aufweisen kkönnen, ohne dass dazu besonders zusätzliche Einrichtungen erforderlich sind.Starting from the prior art formed by DE-PS 2 735 142, the task of The invention is now to be seen in creating a device for applying a surface pressure to endless rotating press belts, with which it is possible at the same time to produce laminate or laminate products which can have any width within the width of the press belt without the need for any additional devices required are.

Die Lösung dieser Aufgabe wird durch die im Kennzeichen des Patentanspruchs 1 beschriebene technische Lehre vermittelt. Die Unteransprüche 2 oder 3 beschreiben zweckmässige Ausgestaltungsformen der Vorrichtung nach Patentanspruch 1.This object is achieved by the technical teaching described in the characterizing part of patent claim 1. Subclaims 2 or 3 describe expedient embodiments of the device according to claim 1.

Eine Ausführungsform der Erfindung ist in der Zeichnung dargestellt. Fig. 1 zeigt eine Ansicht des Rollenbettes mit durchgehenden Wellen von oben gesehen, Fig. 2 eine teilweise Schnittansicht gemäss Fig. 1 und Fig. 3 zeigt die Schmierung der Rollen oder Wälzkörper anhand eines Rollenbettes mit geteilten Wellen.An embodiment of the invention is shown in the drawing. 1 shows a view of the roller bed with continuous shafts seen from above, FIG. 2 shows a partial sectional view according to FIG. 1 and FIG. 3 shows the lubrication of the rollers or rolling elements using a roller bed with divided shafts.

Das in Fig. 1 dargestellte Rollenbett dient zum Aufbringen einer Flächenpressung in einer kontinuierlich arbeitenden Presse. Diese kontinuierlich arbeitende Presse ist als Doppelbandpresse ausgebildet und besitzt zwei übereinanderliegende Doppelbandeinheiten. Jede Doppelbandeinheit besteht aus einer über ein Umlenkrollenpaar geführten Mehrlagenbänderanordnung. Zwischen dem unteren Trum der oberen Mehrlagenbänderanordnung und dem oberen Trum der unteren Mehrlagenbänderanordnung wird das Pressgut kontinuierlich durch die Doppelbandpresse hindurchgeführt und dabei dem Pressdruck ausgesetzt.The roller bed shown in Fig. 1 is used to apply a surface pressure in a continuously operating press. This continuously operating press is designed as a double belt press and has two double belt units one above the other. Each double belt unit consists of a multilayer belt arrangement guided over a pair of deflection rollers. Between the lower run of the upper multilayer belt arrangement and the upper run of the lower multilayer belt arrangement, the material to be pressed is continuously passed through the double belt press and thereby exposed to the pressing pressure.

Der im Pressbereich der Doppelbandpresse ausgeübte Pressdruck wird auf die obere Mehrlagenbänderanordnung von einer oberen Stützplatte 6 und auf die untere Mehrlagenbänderanordnung von einer unteren Stützplatte 6 mittels den Rollen 2 des ortsfest angeordneten Rollenbetts auf die jeweilige Mehrlagenbänderanordnung übertragen. Das Rollenbett besitzt, wie in Fig. 1 gezeigt, einen rahmenartigen Stützkörper bzw. eine Stützplatte 6, in der in Längsrichtung der Doppelbandpresse verlaufende Lagerleisten 4 mit zwei an den Enden der Stützplatte 6 in Querrichtung verlaufenden Begrenzungsleisten 5 angebracht sind. Die Lagerleisten 4 sind von in Querrichtung der Doppelbandpresse verlaufenden durchgehenden Wellen 1 durchzogen. Auf den Wellen sind zwischen den Lagerleisten 4 auf Lagernadeln 3 gelagerte Rollen 2 angeordnet. Die Rollen 2 sind zueinander reihenweise versetzt. Wie in Fig. 3 zu sehen ist, ist die Länge der Lagernadeln 3 gleich gross wie die Länge der Rollen 2.The pressing pressure exerted in the pressing area of the double belt press is transferred to the upper multilayer belt arrangement from an upper support plate 6 and to the lower multilayer belt arrangement from a lower support plate 6 by means of the rollers 2 of the stationary roller bed to the respective multilayer belt arrangement. As shown in FIG. 1, the roller bed has a frame-like support body or a support plate 6, in which bearing strips 4 running in the longitudinal direction of the double belt press are attached, with two limiting strips 5 running in the transverse direction at the ends of the support plate 6. The bearing strips 4 are traversed by continuous shafts 1 running in the transverse direction of the double belt press. Rollers 2 mounted on bearing needles 3 are arranged on the shafts between the bearing strips 4. The rollers 2 are offset from one another in rows. As can be seen in FIG. 3, the length of the bearing needles 3 is the same as the length of the rollers 2.

In Fig. 3 ist ein Rollenbett gezeigt, das geteilte Wellen 1 besitzt. Jeweils zwei benachbarte Lagerleisten 4 sind von einer in Querrichtung der Doppelbandpresse verlaufenden Welle 1 durchzogen. Auf jeder Welle 1 ist eine einzige Rolle 2 auf Lagernadeln 3 gelagert. Die Wellen 1 mit den Rollen 2 sind wiederum versetzt angeordnet. Die Lagernadeln 3 besitzen wiederum die Länge der Rollen 2.3 shows a roller bed which has split shafts 1. In each case two adjacent bearing strips 4 are traversed by a shaft 1 running in the transverse direction of the double belt press. On each shaft 1, a single roller 2 is mounted on bearing needles 3. The shafts 1 with the rollers 2 are in turn arranged offset. The bearing needles 3 in turn have the length of the rollers 2.

Durch die reihenweise versetzte anordnung der auf Lagernadeln 3 laufenden Rollen oder Wälzkörper 2 auf durchgehenden oder geteilten Wellen 1 und zwischen jeder Rollenreihe angeordneten Lagerleisten 4 wird eine besondere Festigkeit, insbesondere eine gute Biegefestigkeit des Rollenbettes erreicht, wodurch dieses die Ausübung eines besonders gleichmässig verteilten Flächendrucks ermöglicht, eine Tatsache, die trotz aller unterschiedlichen, nach dem Stande der Technik sehr zahlreich vorhandenen Möglichkeiten bis jetzt nicht in diesem Masse erreicht werden konnte.The rows of staggered arrangement of the rollers or rolling elements 2 running on bearing needles 3 on continuous or divided shafts 1 and bearing strips 4 arranged between each row of rollers achieve a particular strength, in particular good bending strength, of the roller bed, which enables this to exert a particularly uniformly distributed surface pressure , a fact which, despite all the different possibilities available according to the state of the art, has so far not been achieved to this extent.

Um die Belastung derTo the burden of

Mehrlagenbänderanordnung in Querrichtung der Doppelbandpresse durch den mit Hilfe des Rollenbetts aufgebrachten Druck zu verringern, weisen die Rollen 2 auf der Aussenfläche eine ballige, tonnenförmige Form auf, die gerade dem Verlauf der Biegelinie der als Träger mit Flächenlast aufgefassten, von der Rolle mit ihrem grössten Durchmesser gestützten Mehrlagenbänderanordnung entspricht. Dann herrscht entlang der Berührungslinie in Querrichttung der Doppelbandpresse zwischen tonnenförmiger Rolle und der Mehrlagenbänderanordnung überall die gleiche Hertz'sche Pressung und zerstörerische Spannungsänderungen in der Mehrlagenbänderanordnung werden so weitestgehend vermieden.To reduce multilayer belt arrangement in the transverse direction of the double belt press by means of the pressure applied with the aid of the roller bed, the rollers 2 have a spherical, barrel-shaped shape on the outer surface, which corresponds precisely to the course of the bending line of the roller with its largest diameter, which is understood as a carrier with surface load supported multilayer belt arrangement corresponds. Then there is the same Hertzian pressure everywhere along the line of contact in the transverse direction of the double belt press between the barrel-shaped roll and the multi-layer belt arrangement and destructive changes in tension in the multi-layer belt arrangement are largely avoided.

Wie in Fig. 3 gezeigt ist, sind aus elastomeren Stoffen bestehende Dichtungen in den Rollen 2 angeordnet, die gegen die Lagerleisten 4 gleitend abdichten. Diese Dichtungen bestehen vorzugsweise aus in Nuten der Rollen 2 eingesetzten O-Ringen 8. Damit ist der Raum des Rollenbettes, in dem die Lagernadeln 3 gelagert sind, nach aussen abgedichtet und bildet einen Wälzkörperfüllraum, der sich zwischen den Wellen 1, den O-Ringen 8, den Lagerleisten 4 und den Rollen 2 erstreckt. Dieser Wälzkörperfüllraum ist schmierstoffgefüllt. In den Lagerleisten 4 sind Bohrungen oder andere Verbindungshohlräume zwischen den Wälzkörperfüllräumen vorhanden, so dass eine Zwangsumlaufschmierung der Wälzflächen möglich ist und eine ständige Versorgung der in den einzelnen Reihen angeordneten Wälzkörpern 2 mit Schmiermittel gewährleistet ist.As shown in Fig. 3, seals made of elastomeric materials are arranged in the rollers 2, which seal against the bearing strips 4 sliding. These seals preferably consist of O-rings 8 inserted in the grooves of the rollers 2. The space of the roller bed in which the bearing needles 3 are mounted is sealed to the outside and forms a rolling element filling space which is located between the shafts 1, the O-rings 8, the bearing strips 4 and the rollers 2 extends. This rolling element filling chamber is filled with lubricant. In the bearing strips 4 there are bores or other connecting cavities between the rolling element filling spaces, so that forced circulation lubrication of the rolling surfaces is possible and a constant supply of the rolling elements 2 arranged in the individual rows is ensured with lubricant.

Claims (3)

1. Continuously operating press with a device for the application of an areal pressing, with two endlessly circulating multilayer band arrangements each guided by way of a pair of deflecting rollers, wherein each multilayer band arrangement is supported within the pressing region by a roller bed, which is arranged in fixed location and onto which the pressing pressure is transmitted respectively from an upper or lower support plate, characterised thereby, that the roller bed consists of bearing strips (4), which extend in longitudinal direction of the press and are passed through in transverse direction by shafts (1), rollers (2) borne on bearing needles (3) are arranged between the bearing strips (4) on the continuous shafts (1) displaced row by row or on the divided shafts (1) displaced row by row one relative to the other by little more than the roller diameter, that the length of the bearing needles (3) is equal to the length of the rollers (2), that the space, in which the bearing needles (3) are borne, is sealed off outwardly and that the outward surface of the rollers (2) has an approximately barrelshaped form which is so matched to the course of the bending line of the multilayer band arrangement, conceived as carrier with areal loading and supported by the roller at its greatest diameter, that equal Hertzian pressing prevails along the line of contact between multilayer band arrangement and barrel-shaped roller.
2. Continuously operating press according to claim 1, characterised thereby, that 0-rings or similar elastomers are built in, which are arranged in grooves in the end faces of the rollers (2), slidingly seal against the bearing strips (4) and represent outwardly tight rolling body filling spaces filled with lubricant.
3. Continuously operating press according to claim 1 or 2, characterised thereby, that the bearing strips (4) display bores or other hollow connecting places (7) between the shafts (1) and those hollow spaces of the rollers (2), which receive the bearing needles (3), in such a manner that a circulating forced lubrication of the rolling surfaces is possible.
EP82104685A 1981-06-12 1982-05-28 Continuous press with apparatus for applying a surface pressure Expired EP0067341B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3123291 1981-06-12
DE19813123291 DE3123291A1 (en) 1981-06-12 1981-06-12 DEVICE FOR APPLYING A SURFACE PRESS

Publications (3)

Publication Number Publication Date
EP0067341A2 EP0067341A2 (en) 1982-12-22
EP0067341A3 EP0067341A3 (en) 1983-08-24
EP0067341B1 true EP0067341B1 (en) 1987-08-12

Family

ID=6134520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104685A Expired EP0067341B1 (en) 1981-06-12 1982-05-28 Continuous press with apparatus for applying a surface pressure

Country Status (4)

Country Link
US (1) US4548133A (en)
EP (1) EP0067341B1 (en)
JP (1) JPS5844996A (en)
DE (1) DE3123291A1 (en)

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DE3432549A1 (en) * 1984-09-05 1986-03-13 G. Siempelkamp Gmbh & Co, 4150 Krefeld CONTINUOUSLY WORKING PRESS FOR PRESSING CHIPBOARD SHEETS, FIBER SHEET SHEETS AND THE LIKE PRESS RAILWAYS
DE3432548C2 (en) * 1984-09-05 1986-10-02 G. Siempelkamp Gmbh & Co, 4150 Krefeld Guide device for roller bars in a continuously operating press
CN1017881B (en) * 1987-12-16 1992-08-19 库特·赫尔德·法布里肯特 Apparatus and method for manufacturing wood plank
DE4128024A1 (en) * 1991-08-23 1993-02-25 Held Kurt CONTINUOUSLY WORKING DOUBLE BAND PRESS
DE19944022C2 (en) * 1999-09-15 2003-07-24 Thomas Biermann Continuously working press
US6908295B2 (en) * 2000-06-16 2005-06-21 Avery Dennison Corporation Process and apparatus for embossing precise microstructures and embossing tool for making same
CN102581917B (en) * 2012-03-08 2013-11-06 浙江农林大学 Manufacturing method of scrimber comprising wood wool rod units
CN113618857B (en) * 2021-09-06 2022-08-26 云南程盈森林资源开发控股集团有限公司 Brand-new energy-saving ecological floor for full-bamboo or bamboo-wood composite container and preparation method thereof

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US1764456A (en) * 1928-03-16 1930-06-17 Mantius Otto Fiber-board machine
US2513860A (en) * 1949-08-08 1950-07-04 Harry L Gordon Antifriction roller bearing
CH327433A (en) * 1954-01-15 1958-01-31 Voelskow Peter Device for continuously progressing pressing
US2867481A (en) * 1955-10-17 1959-01-06 Beloit Iron Works Lubrication system
DE1004368B (en) * 1955-11-02 1957-03-14 Siemens Ag Continuously operating belt press, especially for chipboard production
US3642335A (en) * 1969-09-12 1972-02-15 Nippon Seiko Kk Sealed bearing
DE2037442A1 (en) * 1970-07-28 1972-02-10 Rhiando, Maxwell Alvin Earl, South Ascot, Berkshire (Großbritannien) With an endless belt and counter belt working press for the continuous Her position of workpieces such as plates, strips, tablets, spheres, and the like
DE2248760A1 (en) * 1972-10-05 1974-04-11 Kuesters Eduard Continuous press - for producing laminates of compressed chip panels
DE2157746C3 (en) * 1971-11-22 1978-10-05 Eduard Kuesters, Maschinenfabrik, 4150 Krefeld Press for exerting a surface pressure
US3840102A (en) * 1972-12-07 1974-10-08 Fei Inc Roller conveyor with plastic wheel assembly
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DE2735142C3 (en) * 1977-08-04 1981-03-19 Kurt 7218 Trossingen Held Continuously working press
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DE3028052C2 (en) * 1980-07-24 1983-11-10 Held, Kurt, 7218 Trossingen Device for the continuous sealing of inserts

Also Published As

Publication number Publication date
EP0067341A2 (en) 1982-12-22
JPS5844996A (en) 1983-03-16
DE3123291C2 (en) 1993-04-15
US4548133A (en) 1985-10-22
JPS6121759B2 (en) 1986-05-28
EP0067341A3 (en) 1983-08-24
DE3123291A1 (en) 1983-01-05

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