EP0126865A1 - Press for exerting a pressure on an area - Google Patents

Press for exerting a pressure on an area Download PDF

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Publication number
EP0126865A1
EP0126865A1 EP84102413A EP84102413A EP0126865A1 EP 0126865 A1 EP0126865 A1 EP 0126865A1 EP 84102413 A EP84102413 A EP 84102413A EP 84102413 A EP84102413 A EP 84102413A EP 0126865 A1 EP0126865 A1 EP 0126865A1
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EP
European Patent Office
Prior art keywords
membrane
pressure
sealing strip
pressure medium
socket
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
EP84102413A
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German (de)
French (fr)
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EP0126865B1 (en
Inventor
Werner Dr. Pankoke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Theodor Hymmen KG
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Theodor Hymmen KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Theodor Hymmen KG filed Critical Theodor Hymmen KG
Priority to AT84102413T priority Critical patent/ATE27119T1/en
Publication of EP0126865A1 publication Critical patent/EP0126865A1/en
Application granted granted Critical
Publication of EP0126865B1 publication Critical patent/EP0126865B1/en
Expired legal-status Critical Current

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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
    • B30B5/062—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/906—Seal for article of indefinite length, e.g. strip, sheet

Definitions

  • the invention relates to a device for applying surface pressure to progressive workpieces such as wood-based panels or the like, in which at least one endlessly rotating press belt can be pressed against the workpiece by a pressure medium which is in a pressure chamber adjacent to the press belt and sealed by means of a circumferential sealing strip can be introduced and the press belt is arranged to slide along the sealing strip.
  • the object of the invention is to design a device of the type mentioned so that the circumferential seal of the pressure chamber with respect to the press belt can also be used for higher operating pressures and pressure medium losses are avoided.
  • the device shown has a lower frame 10 and an upper frame 11, in each of which endless press belts 12 are installed.
  • the press belts 12 are tensioned on deflection rollers 13 and can be driven by them. They are arranged with respect to one another with a gap which corresponds to the width of a workpiece 14 to be machined. While the press belts 12 with their surfaces touching the workpiece 14 execute horizontal movement, the workpiece 14 is drawn into the device, specifically into the gap that exists between the surfaces, and is pressurized there by the surfaces of the press belts 12. When the workpiece 14 passes through the device, it is processed so that it leaves the gap between the press belts 12 at the outlet from the device as a finished workpiece.
  • foils 15, which run off supply rolls 16, are pressed onto the top and bottom of the workpiece 14.
  • Such a pressing process can take place at room temperature; however, it can also simultaneously provide the application of high temperatures to the workpiece 14 in the machining area.
  • the upper frame 11 can be pressed against the lower frame 10 as a whole or, after a rough adjustment of the distance between the upper frame 11 and the lower frame 10, the required pressure can be exerted by means of the air pressure which is present in pressure chambers 17 prevails, which are each arranged on the back of the press belt 12 with respect to the workpiece 14, that is to say on the surface of the press belt 12 which is not in contact with the workpiece 14.
  • guide slides 18 are provided for the rough adjustment, which are fixedly arranged on the lower frame 10 and on which the upper frame 11 can be displaced in the vertical direction.
  • Hydraulic cylinders 19 provide for the displacement.
  • the pressure chambers 17 are delimited by pressure plates 20, which are guided relative to the frames 10 and 11 and whose movement is caused by hydraulic cylinders 21.
  • the pressure plate 20 has on its surface facing the press belt a circumferential groove 22 for fastening a sealing strip 23. In the installed state, this sealing strip 23 rests on the press belt 12, which slides along the seal during operation.
  • the pressure Chamber 17 is thus formed by the surface of the pressure plate 20, by the surface of the press belt 12 facing away from the workpiece 14 and by the circumferential sealing strip 23.
  • a pressure medium can be introduced into the pressure chamber 17 through the pressure plate 20 via openings.
  • the sealing strip 23 is held in the groove 22 by a socket 24, which likewise has a circumferential groove which is open to the pressing band 12 and into which the sealing strip 23, which is rectangular in cross section, is inserted.
  • the socket 24 is arranged to be displaceable perpendicularly to the press belt 12 within the groove 22, while the sealing strip 23 is stuck within the socket 24.
  • the width of the socket 24 is made smaller than the width of the groove 22, so that a distance 25 remains between the groove 22 and the socket 24. 2 of the drawing, the distance 25 on both sides is, for example, approximately the same size.
  • a rubber-elastic seal in the form of a membrane 26 is arranged, which is held clamped with its two longitudinal edges on the groove wall (pressure plate 20) and in this way the Seals the interior of the groove 22 from the atmosphere.
  • the elastic membrane 26 is releasably attached to the edge in the pressure plate 20 by means of screws 27.
  • one or more retaining strips 28 forming the grooves 25 form on both sides of the socket 24 at a distance, the inner surface of which presses the membrane on the edge against a corresponding surface of the pressure plate 20 under the pressure of the tightened screws 27.
  • the pressure medium hose 30 (e.g. made of rubber or plastic) runs parallel to it (replaceable after loosening the screws 29) lying on the inner surface of the holder 24 and offers the holder 24 a flexible abutment on the one hand and a controllable pressure as a pressure device on the other hand, the pressure medium hose 30 to one or more pressure medium connections 31 in the pressure plate 20 or the like. can be connected and subjected to variable pressure.
  • the pressure medium hose 30 forms a pressure chamber.
  • This pressure medium hose 30 can be round; but it can also - as shown in FIG. 2 - be flat on the one hand and arched on the other hand so as to exert the widest possible pressure on the membrane 26 and the frame 24.
  • FIG. 2 Such an embodiment with a pressure medium hose (membrane) (FIG. 2) shows various advantages. Escape of the sealing pressure in the direction of the pressure plate is reliably avoided.
  • the sealing groove 25.40 between the socket 24.37.42 and the groove wall can be manufactured with greater tolerance.
  • the shear forces that propagate through the rotating press belt onto the frame can be introduced directly into the support structure at any point of the frame via the membrane according to the invention.
  • a rigid, continuous strip on the inside of the membrane instead of a pressure medium hose (according to FIG. 2), which is preferably connected to the socket e.g. can be rigidly connected by screws.
  • the seal pressure is introduced into the groove 22 and the entire seal, i.e. the rigid bar and socket with seal pressed together on the rotating press belt.
  • the pressure medium which is supplied from the pressure medium line, for example 31, acts directly on the respective membrane 32-36, which has the holder with seal (FIGS. 4 and 5) or the Seal (without socket) immediately (Fig. 6 to 8) in a different way.
  • the continuous membrane 32 to 36 forms a complete seal for the pressure chamber formed by it relative to the pressure plate 20, so that no pressure medium loss occurs even at higher pressure in the pressure chamber.
  • the socket 37 on the underside of the membrane 32 is e.g. fastened by means of a screw 38 and the laterally clamped edges of this membrane 32 held firmly but releasably by means of screws 39 in the multi-part pressure plate 20.
  • the socket 37 has sufficient play in the groove 40, but without tilting, so that the sealing strip 41 on the underside can freely adapt to any unevenness of the press belt 12.
  • the membrane 33 is fastened on the underside of the holder 42, so that the sealing strip 43 passes through the membrane 33.
  • neither a socket nor an integrated pressure space is provided.
  • the membrane 34 is detachably fastened by means of screws 44 on the underside of the pressure plate 20 and holds the flat sealing strip 45 in an incorporated groove 46 in the membrane 34.
  • the same configuration is also shown in the embodiment according to FIG. 7, in which the membrane 35 is formed by means of a incorporated rib 47 encompasses the sealing strip 48 over a wide area and thus holds it firmly against canting.
  • FIG. 8 discloses an essentially U-shaped membrane 36, the leg of which is clamped in a groove in the pressure plate 20 with a transverse screw 49.
  • the sealing strip 50 sticks to the underside (outside) of the membrane 36, the edge strips of which are braced by means of side strips 51 which are held by the aforementioned screw 49, many of which are incorporated at a distance over the length of the membrane 36.
  • the pressure space formed by means of the pressure medium hose 30 for the vertical movement of the sealing strip 23 onto the press belt is formed by the surfaces of the pressure plate 20 and the membranes 32-36 which are directed towards one another.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Saccharide Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Coating Apparatus (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

In a device for applying surface pressure to advancing workpieces like boards of wooden material etc. with at least one continuous compression belt against the inside of which a compression plate acts, several pressure chambers are distributed along the width and/or the length of the effective pressure surface of the belt. Each pressure chamber consists on the one hand of a sealing strip and on the other hand of the facing surfaces of the compression plate and of the compression belt. The sealing strips are resiliently secured against and can be released from the compression plate by a strip-like diaphragm that demarcates a pressure space.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke wie Holzwerkstoffplatten o.dgl., bei der mindestens ein endlos umlaufendes Preßband an das Werkstück von einem Druckmittel anpreßbar ist, welches in einer an das Preßband angrenzenden und mittels einer umlaufenden Dichtungsleiste abgedichtetenDruckkammer einleitbar ist und das Preßband an der Dichtungsleiste entlanggleitend angeordnet ist.The invention relates to a device for applying surface pressure to progressive workpieces such as wood-based panels or the like, in which at least one endlessly rotating press belt can be pressed against the workpiece by a pressure medium which is in a pressure chamber adjacent to the press belt and sealed by means of a circumferential sealing strip can be introduced and the press belt is arranged to slide along the sealing strip.

Aufgabe der Erfindung ist es, eine Vorrichtung der genannten Art so zu gestalten, daß die umlaufende Dichtung der Druckkam-mer gegenüber dem Preßband auch für höhere Betriebsdrücke verwendbar ist und Druckmittelverluste vermieden werden.The object of the invention is to design a device of the type mentioned so that the circumferential seal of the pressure chamber with respect to the press belt can also be used for higher operating pressures and pressure medium losses are avoided.

Diese Aufgabe wird durch die Merkmale des kennzeichnenden Teils des Patentanspruches 1 gelöst.This object is achieved by the features of the characterizing part of patent claim 1.

Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen. In den Zeichnungen sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:

  • Fig. 1 eine Unteransicht eines Eckteiles einer rechteckigen Druckplatte (von der Seite des Preßbandes aus gesehen);
  • Fig. 2 einen Teilschnitt gemäß Linie 11-11 der Fig. 1 mit der Fassung für die Preßbanddichtung mit elastischer Membran;
  • Fig. 3 eine Seitenansicht einer Vorrichtung mit oberem und unterem Preßband;
  • Fig. 4 einen Teilschnitt entsprechend der Schnittlinie 11-11 gemäß Fig. 1 in einer abgeänderten Ausführungsform;
  • Fig. 5 einen Teilschnitt entsprechend der Schnittlinie II-II gemäß Fig. 1 in einer weiter abgeänderten Ausführungsform;
  • Fig. 6 denselben Teilschnitt gemäß Fig. 1 in einer nochmals abgeänderten Ausführungsform (ohne Nut);
  • Fig. 7 denselben Teilschnitt gemäß Fig. 1 mit einer weiter abgewandelten Ausführungsform und
  • Fig. 8 denselben Teilschnitt gemäß Fig. 1 mit einer zusätzlich veränderten Ausführungsform (ohne Nut).
Further features of the invention emerge from the subclaims. Exemplary embodiments of the invention are shown in the drawings. Show it:
  • Figure 1 is a bottom view of a corner part of a rectangular pressure plate (seen from the side of the press belt).
  • Figure 2 is a partial section along line 11-11 of Figure 1 with the socket for the press tape seal with elastic membrane.
  • Figure 3 is a side view of a device with upper and lower press belt.
  • Fig. 4 is a partial section along the section line 11-11 of Figure 1 in a modified embodiment.
  • 5 shows a partial section corresponding to the section line II-II according to FIG. 1 in a further modified embodiment;
  • 6 shows the same partial section according to FIG. 1 in a further modified embodiment (without groove);
  • Fig. 7 the same partial section of FIG. 1 with a further modified embodiment and
  • 8 shows the same partial section according to FIG. 1 with an additionally modified embodiment (without groove).

Die dargestellte Vorrichtung besitzt einen unteren Rahmen 10 und einen oberen Rahmen 11, in die jeweils endlose Preßbänder 12 eingebaut sind. Die Preßbänder 12 sind auf Umlenkrollen 13 gespannt und von diesen antreibbar. Sie sind mit einem Spalt zueinander angeordnet, der der Breite eines zu bearbeitenden Werkstückes 14 entspricht. Während die Preßbänder 12 mit ihren das Werkstück 14 berührenden Oberflächen eine waagerechte Bewegung ausführen, wird das Werkstück 14 in die Vorrichtung, und zwar in den Spalt, der zwischen den Oberflächen besteht, hineingezogen und dort von den Oberflächen der Preßbänder 12 mit Druck beaufschlagt. Bei Durchlauf des Werkstückes 14 durch die Vorrichtung erfolgt somit seine Bearbeitung, so daß es als fertig bearbeitetes Werkstück den Spalt zwischen den Preßbändern 12 am Austritt aus der Vorrichtung verläßt.The device shown has a lower frame 10 and an upper frame 11, in each of which endless press belts 12 are installed. The press belts 12 are tensioned on deflection rollers 13 and can be driven by them. They are arranged with respect to one another with a gap which corresponds to the width of a workpiece 14 to be machined. While the press belts 12 with their surfaces touching the workpiece 14 execute horizontal movement, the workpiece 14 is drawn into the device, specifically into the gap that exists between the surfaces, and is pressurized there by the surfaces of the press belts 12. When the workpiece 14 passes through the device, it is processed so that it leaves the gap between the press belts 12 at the outlet from the device as a finished workpiece.

Im vorliegenden Beispiel werden auf die Ober- und Unterseite des Werkstückes 14 Folien 15 aufgepreßt, die von Vorratsrollen 16 ablaufen. Ein solcher Preßvorgang kann bei Raumtemperatur erfolgen; er kann aber auch gleichzeitig das Aufbringen von hohen Temperaturen auf das Werkstück 14 im Bearbeitungsbereich vorsehen. Zur Erzeugung des gewünschten Druckes-kann der obere Rahmen 11 insgesamt gegen den unteren Rahmen 10 gepreßt werden oder es kann nach einer Grobeinstellung des Abstandes zwischen dem oberen Rahmen 11 und dem unteren Rahmen 10 der erforderliche Druck mittels des Luftdruckes ausgeübt werden, der in Druckkammern 17 herrscht, die jeweils an der Rückseite des Preßbandes 12 in bezug auf das Werkstück 14, also an der Oberfläche des Preßbandes 12, welche nicht mit dem Werkstück 14 in Berührung steht, angeordnet sind.In the present example, foils 15, which run off supply rolls 16, are pressed onto the top and bottom of the workpiece 14. Such a pressing process can take place at room temperature; however, it can also simultaneously provide the application of high temperatures to the workpiece 14 in the machining area. To generate the desired pressure, the upper frame 11 can be pressed against the lower frame 10 as a whole or, after a rough adjustment of the distance between the upper frame 11 and the lower frame 10, the required pressure can be exerted by means of the air pressure which is present in pressure chambers 17 prevails, which are each arranged on the back of the press belt 12 with respect to the workpiece 14, that is to say on the surface of the press belt 12 which is not in contact with the workpiece 14.

Im vorliegenden Beispiel sind für die Grobeinstellung Führungsschlitten 18 vorgesehen, die an dem unteren Rahmen 10 fest angeordnet sind und an denen der obere Rahmen 11 in senkrechter Richtung verschiebbar ist. Für die Verschiebung sorgen Hydraulikzylinder 19. Die Druckkammern 17 sind von Druckplatten 20 begrenzt, die gegenüber den Rahmen 10 und 11 geführt sind und deren Bewegung von Hydraulikzylindern 21 hervorgerufen wird.In the present example, guide slides 18 are provided for the rough adjustment, which are fixedly arranged on the lower frame 10 and on which the upper frame 11 can be displaced in the vertical direction. Hydraulic cylinders 19 provide for the displacement. The pressure chambers 17 are delimited by pressure plates 20, which are guided relative to the frames 10 and 11 and whose movement is caused by hydraulic cylinders 21.

Die Druckplatte 20 weist an ihrer dem Preßband zugewandten Oberfläche eine umlaufende Nut 22 zur Befestigung einer Dichtungsleiste 23 auf. Im eingebauten Zustand liegt diese Dichtungsleiste 23 an dem Preßband 12 an, welches im Betrieb an der Dichtung entlanggleitet. Die Druckkammer 17 wird somit von der Oberfläche der Druckplatte 20, von der von dem Werkstück 14 abgewandten Oberfläche des Preßbandes 12 und von der umlaufenden Dichtungsleiste 23 gebildet. Über Öffnungen kann ein Druckmittel durch die Druckplatte 20 hindurch in die Druckkammer 17 eingeleitet werden.The pressure plate 20 has on its surface facing the press belt a circumferential groove 22 for fastening a sealing strip 23. In the installed state, this sealing strip 23 rests on the press belt 12, which slides along the seal during operation. The pressure Chamber 17 is thus formed by the surface of the pressure plate 20, by the surface of the press belt 12 facing away from the workpiece 14 and by the circumferential sealing strip 23. A pressure medium can be introduced into the pressure chamber 17 through the pressure plate 20 via openings.

Die Dichtungsleiste 23 wird in der Nut 22 von einer Fassung 24 gehalten, die ebenfalls eine umlaufende und zum Preßband 12 offene Nut aufweist, in welche die im Querschnitt rechteckige Dichtungsleiste 23 eingesteckt ist. Die Fassung 24 ist senkrecht zum Preßband 12 innerhalb der Nut 22 verschiebbar angeordnet, während die Dichtungsleiste 23 innerhalb der Fassung 24 festsitzt. Die Breite der Fassung 24 ist kleiner ausgeführt als die Breite der Nut 22, so daß zwischen der Nut 22 und der Fassung 24 ein Abstand 25 bestehenbleibt. Gemäß Fig. 2 der Zeichnung ist der Abstand 25 zu beiden Seiten beispielsweise etwa gleichgroß. An der am weitesten innerhalb der Nut 22 befindlichen, zum Preßband 12 parallelen Oberfläche der Fassung 24 ist eine gummielastische Dichtung in Form einer Membran 26 angeordnet, die mit ihren beiden längsseitigen Rändern auf der Nutwand (Druckplatte 20)eingespannt gehalten ist und auf diese Weise den Innenraum der Nut 22 gegenüber der Atmosphäre abdichtet.The sealing strip 23 is held in the groove 22 by a socket 24, which likewise has a circumferential groove which is open to the pressing band 12 and into which the sealing strip 23, which is rectangular in cross section, is inserted. The socket 24 is arranged to be displaceable perpendicularly to the press belt 12 within the groove 22, while the sealing strip 23 is stuck within the socket 24. The width of the socket 24 is made smaller than the width of the groove 22, so that a distance 25 remains between the groove 22 and the socket 24. 2 of the drawing, the distance 25 on both sides is, for example, approximately the same size. On the most inside of the groove 22, parallel to the pressing band 12, the surface of the socket 24, a rubber-elastic seal in the form of a membrane 26 is arranged, which is held clamped with its two longitudinal edges on the groove wall (pressure plate 20) and in this way the Seals the interior of the groove 22 from the atmosphere.

Die elastische Membran 26 ist randseitig in der Druckplatte 20 mittels Schrauben 27 lösbar befestigt. Dazu liegt beidseitig der Fassung 24 mit Abstand die Nuten 25 bildende eine oder mehrere Halteleisten 28 innerhalb der Druckplatte 20 an, deren innere Oberfläche die Membran randseitig gegen eine entsprechende Fläche der Druckplatte 20 unter dem Druck der angespannten Schrauben 27 preßt.The elastic membrane 26 is releasably attached to the edge in the pressure plate 20 by means of screws 27. For this purpose, one or more retaining strips 28 forming the grooves 25 form on both sides of the socket 24 at a distance, the inner surface of which presses the membrane on the edge against a corresponding surface of the pressure plate 20 under the pressure of the tightened screws 27.

Durch die Fassung 24 selbst fassen Schrauben 29 in einen elastischen Druckmittelschlauch 30 und halten somit die Fassung 24 mit der Menbran 26 zusammen.Through the holder 24 itself, screws 29 grip into an elastic pressure medium hose 30 and thus hold the holder 24 together with the membrane 26.

Der Druckmittelschlauch 30 (z.B. aus Gummi oder Kunststoff) verläuft (nach Lösen der Schrauben 29 auswechselbar) auf der inneren Oberfläche der Fassung 24 liegend dazu parallel und bietet der Fassung 24 einerseits ein nachgiebiges Widerlager und andererseits als Druckeinrichtung einen regulierbaren Druck, wobei der Druckmittelschlauch 30 an ein oder mehrere Druckmittelanschlüsse 31 in der Druckplatte 20 o.dgl. angeschlossen und mit variablem Druck beaufschlagt werden kann. Der Druckmittelschlauch 30 bildet einen Druckraum.The pressure medium hose 30 (e.g. made of rubber or plastic) runs parallel to it (replaceable after loosening the screws 29) lying on the inner surface of the holder 24 and offers the holder 24 a flexible abutment on the one hand and a controllable pressure as a pressure device on the other hand, the pressure medium hose 30 to one or more pressure medium connections 31 in the pressure plate 20 or the like. can be connected and subjected to variable pressure. The pressure medium hose 30 forms a pressure chamber.

Dieser Druckmittelschlauch 30 kann rund sein; er kann aber auch - wie die Fig. 2 zeigt - einerseits flach und andererseits gewölbt sein, um damit einen möglichst breitflächigen Druck auf die Membran 26 und die Fassung 24 auszuüben.This pressure medium hose 30 can be round; but it can also - as shown in FIG. 2 - be flat on the one hand and arched on the other hand so as to exert the widest possible pressure on the membrane 26 and the frame 24.

Eine derartige Ausführung mit Druckmittelschlauch (Membran) (Fig. 2) zeigt verschiedene Vorteile. Ein Austreten des Dichtungsdruckes in Richtung der Druckplatte wird sicher vermieden. Die Dichtungsnut 25,40 zwischen Fassung 24,37,42 und Nutwandung kann mit größerer Toleranz gefertigt werden. Die Schubkräfte, die sich durch das umlaufende Preßband auf die Fassung fortpflanzen, können über die erfindungsgemäße Membran zu jedem Punkt der Fassung unmittelbar in die Stützkonstruktion eingeleitet werden.Such an embodiment with a pressure medium hose (membrane) (FIG. 2) shows various advantages. Escape of the sealing pressure in the direction of the pressure plate is reliably avoided. The sealing groove 25.40 between the socket 24.37.42 and the groove wall can be manufactured with greater tolerance. The shear forces that propagate through the rotating press belt onto the frame can be introduced directly into the support structure at any point of the frame via the membrane according to the invention.

Es liegt im Rahmen der Erfindung, anstelle eines Druckmittelschlauches (gemäß Fig. 2) innenseitig der Membran eine starre durchgehende Leiste anzuordnen, die vorzugsweise mit der Fassung z.B. durch Schrauben starr verbunden sein kann. Dabei wird der Dichtungsdruck in die Nut 22 eingeleitet und die gesamte Dichtung, d.h. die'starre Leiste und Fassung mit Dichtung zusammen an das umlaufende Preßband angepreßt.It is within the scope of the invention to arrange a rigid, continuous strip on the inside of the membrane instead of a pressure medium hose (according to FIG. 2), which is preferably connected to the socket e.g. can be rigidly connected by screws. The seal pressure is introduced into the groove 22 and the entire seal, i.e. the rigid bar and socket with seal pressed together on the rotating press belt.

Bei den in den Fig. 4 bis 8 dargestellten verschiedenen Ausführungsformen wirkt das Druckmittel, das aus der Druckmittelleitung z.B. 31 -zugeführt wird, unmittelbar auf die jeweilige Membran 32-36, welche die Fassung mit Dichtung (Fig. 4 und 5) bzw. die Dichtung (ohne Fassung) unmittelbar (Fig. 6 bis 8) in jeweils anderer Weise hält. Die durchgehende Membran 32 bis 36 bildet jeweils für den von ihr gegenüber der Druckplatte 20 gebildeten Druckraum eine vollständige Dichtung, so daß auch bei höherem Druck im Druckraum kein Druckmittelverlust auftritt.In the various embodiments shown in FIGS. 4 to 8, the pressure medium, which is supplied from the pressure medium line, for example 31, acts directly on the respective membrane 32-36, which has the holder with seal (FIGS. 4 and 5) or the Seal (without socket) immediately (Fig. 6 to 8) in a different way. The continuous membrane 32 to 36 forms a complete seal for the pressure chamber formed by it relative to the pressure plate 20, so that no pressure medium loss occurs even at higher pressure in the pressure chamber.

Bei der Ausführungsform gemäß Fig. 4 ist die Fassung 37 auf der Unterseite der Membran 32 z.B. mittels einer Schraube 38 befestigt und die seitlich eingespannten Ränder dieser Membran 32 mittels Schrauben 39 in der mehrteiligen Druckplatte 20 fest aber lösbar gehalten. Die Fassung 37 hat in der Nut 40 ein ausreichendes Spiel, ohne jedoch zu verkanten, so daß die unterseitige Dichtungsleiste 41 frei sich jeder Unebenheit des Preßbandes 12 anpassen kann.In the embodiment according to Fig. 4, the socket 37 on the underside of the membrane 32 is e.g. fastened by means of a screw 38 and the laterally clamped edges of this membrane 32 held firmly but releasably by means of screws 39 in the multi-part pressure plate 20. The socket 37 has sufficient play in the groove 40, but without tilting, so that the sealing strip 41 on the underside can freely adapt to any unevenness of the press belt 12.

Bei der Ausführungsform gemäß Fig. 5 ist die Membran 33 auf der Unterseite der Fassung 42 befestigt, so daß die Dichtungsleiste 43 die Membran 33 durchfaßt.In the embodiment according to FIG. 5, the membrane 33 is fastened on the underside of the holder 42, so that the sealing strip 43 passes through the membrane 33.

In der Ausführungsform gemäß Fig. 6 ist weder eine Fassung noch ein eingearbeiteter Druckraum vorgesehen. Die Membran 34 ist mittels Schrauben 44 auf der Unterseite der Druckplatte 20 lösbar befestigt und hält die flache Dichtungsleiste 45 in einer eingearbeiteten Nut 46 der Membran 34. Dieselbe Ausbildung zeigt sich auch bei der Ausführungsform gemäß Fig. 7, bei der die Membran 35 mittels einer eingearbeiteten Rippe 47 die Dichtungsleiste 48 breitflächiger umfaßt und damit gegen Verkanten fester hält.In the embodiment according to FIG. 6, neither a socket nor an integrated pressure space is provided. The membrane 34 is detachably fastened by means of screws 44 on the underside of the pressure plate 20 and holds the flat sealing strip 45 in an incorporated groove 46 in the membrane 34. The same configuration is also shown in the embodiment according to FIG. 7, in which the membrane 35 is formed by means of a incorporated rib 47 encompasses the sealing strip 48 over a wide area and thus holds it firmly against canting.

Die Ausführungsform gemäß Fig. 8 offenbart eine im wesentlichen U-förmige Membran 36, deren Schenkel in einer Nut der Druckplatte 20 mit einer Querschraube 49 eingespannt ist. Die Dichtungsleiste 50 klebt an der Unterseite (Außenseite) der Membran 36, deren Randstreifen mittels Seitenleisten 51 verspannt sind, die durch die vorgenannte Schraube 49 gehalten sind, von der viele im Abstand über die Länge der Membran 36 eingearbeitet sind.The embodiment according to FIG. 8 discloses an essentially U-shaped membrane 36, the leg of which is clamped in a groove in the pressure plate 20 with a transverse screw 49. The sealing strip 50 sticks to the underside (outside) of the membrane 36, the edge strips of which are braced by means of side strips 51 which are held by the aforementioned screw 49, many of which are incorporated at a distance over the length of the membrane 36.

Bei den Ausführungsbeispielen nach den Fig. 4 bis 8 ist der, mittels des Druckmittelschlauches 30 gebildete Druckraum zur senkrechten Bewegung der Dichtungsleiste 23 auf das Preßband von den jeweils zueinander gerichteten Oberflächen der Druckplatte 20 und den Membranen 32-36 gebildet.In the exemplary embodiments according to FIGS. 4 to 8, the pressure space formed by means of the pressure medium hose 30 for the vertical movement of the sealing strip 23 onto the press belt is formed by the surfaces of the pressure plate 20 and the membranes 32-36 which are directed towards one another.

Claims (10)

1. Vorrichtung zum Aufbringen einer Flächenpressung auf fortschreitende Werkstücke, wie Holzwerkstoffplatten o.dgl. bei der mindestens ein umlaufendes Preßband an das Werkstück von einem Druckmittel anpreßbar ist, das in eine an das Preßband angrenzende und mittels einer umlaufenden Dichtungsleiste abgedichteten Druckkammer einleitbar ist und das Preßband an der Dichtungsleiste entlanggleitend angeordnet ist, dadurch gekennzeichnet, daß die die Druckkammer (17) an ihren Außenrändern begrenzende Dichtungsleiste (23,41, 43,45,48,50) mittels einer Fassung (24,37,42) oder unmittelbar an einer streifenförmigen, eine zusätzliche elastische Dichtung bildenden, umlaufend im Rrndbereich der Druckkammer (17) vorgesehenen Membran (26,32,33,34,35,36) befestigtist, die Membranränder an einer Druckplatte (20) gegenüber dem Druckmittel abgedichtet festgelegt sind und die Membran an der der Dichtungsleiste abgewandten Seite druckbeaufschlagt ist.1. Apparatus for applying surface pressure to progressive workpieces, such as wood-based panels or the like. in which at least one circumferential press belt can be pressed onto the workpiece by a pressure medium, which can be introduced into a pressure chamber adjacent to the press belt and sealed by means of a circumferential sealing strip and the press strip is arranged to slide along the sealing strip, characterized in that the pressure chamber (17 ) on its outer edges delimiting sealing strip (23, 41, 43, 45, 48, 50) by means of a socket (24, 37, 42) or directly on a strip-shaped, additional elastic sealing, provided all around in the edge area of the pressure chamber (17) Membrane (26,32,33,34,35,36) is attached, the membrane edges are fixed on a pressure plate (20) sealed against the pressure medium and the membrane is pressurized on the side facing away from the sealing strip. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß im Randbereich der Druckplatte (20) eine umlaufende Nut (22) angeordnet ist, die Ränder der Membran (26,32) an den Wandungen der Nut eingespannt sind und in den durch die Nutflächen und die Membran begrenzten Raum ein Druckmedium einführbar ist.2. Device according to claim 1, characterized in that in the edge region of the pressure plate (20) a circumferential groove (22) is arranged, the edges of the membrane (26,32) are clamped to the walls of the groove and in the through the groove surfaces and the membrane limited space a pressure medium can be inserted. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Membran (26) an der der Dichtungsleiste (23) abgewandten Seite mit einem mit einem Druckmedium füllbaren Schlauch (30) verbunden ist.3. Device according to claim 1 or 2, characterized in that the membrane (26) on the side facing away from the sealing strip (23) is connected to a hose (30) which can be filled with a pressure medium. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Innenraum des Druckmittelschlauches (30) mit einer in der Druckplatte (20) vorgesehenen Druckleitung (31) für Druckluft verbunden ist.4. The device according to claim 3, characterized in that the interior of the pressure medium hose (30) is connected to a pressure line (31) provided for compressed air in the pressure plate (20). 5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die zum Preßband (12) gerichtete Fassung (24) mittels Schrauben (29) unter Zwischenschaltung der Membran (26) an dem Druckmittelschlauch (30) befestigt ist.5. Apparatus according to claim 3 or 4, characterized in that the facing to the press belt (12) socket (24) by means of screws (29) with the interposition of the membrane (26) on the pressure medium hose (30) is attached. 6. Vorrichtung nach Anspruch 1,2 oder 3, dadurch gekennzeichnet, daß die Membran (26,36) mittels seitlicher Halteleisten (28,51), durch welche Schrauben (27,49) greifen, an der Druckplatte (20) befestigt ist.6. Apparatus according to claim 1, 2 or 3, characterized in that the membrane (26, 36) is fastened to the pressure plate (20) by means of lateral retaining strips (28, 51), through which screws (27, 49) engage. 7. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß anstelle des Druckmittelschlauches (30) eine lösbar mit der Fassung (24) verbundene starre Leiste vorgesehen ist.7. The device according to claim 3, characterized in that instead of the pressure medium hose (30) a detachably connected to the socket (24) is provided rigid strip. 8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dichtungsleiste (45,48,50) an der dem Preßband (12) zugewandten Seite der Membran (34,35,36) an dieser unmittelbar befestigt ist.8. The device according to claim 1, characterized in that the sealing strip (45,48,50) on the press belt (12) facing side of the membrane (34,35,36) is attached directly to this. 9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Membran (34,35) eine die Dichtungsleiste (45,48) teilweise aufnehmende Nut (46) bzw. eine in einer Rippe (47) angeordnete Aufnahmenut aufweist.9. The device according to claim 8, characterized in that the membrane (34,35) has a sealing strip (45,48) partially receiving groove (46) or in a rib (47) arranged receiving groove. 10. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Fassung (42) auf der dem Preßband (12) abgewandten Seite der Membran (33) befestigt ist und die Dichtungsleiste (43) die Membran (33) durchfaßt.10. The device according to claim 1, characterized in that the socket (42) on the press belt (12) facing away from the membrane (33) is attached and the sealing strip (43) passes through the membrane (33).
EP84102413A 1983-03-24 1984-03-07 Press for exerting a pressure on an area Expired EP0126865B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84102413T ATE27119T1 (en) 1983-03-24 1984-03-07 DEVICE FOR APPLYING A SURFACE PRESSURE TO PROGRESSIVE WORKPIECES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833310700 DE3310700A1 (en) 1983-03-24 1983-03-24 DEVICE FOR APPLYING A SURFACE PRESS TO PROGRESSIVE WORKPIECES
DE3310700 1983-03-24

Publications (2)

Publication Number Publication Date
EP0126865A1 true EP0126865A1 (en) 1984-12-05
EP0126865B1 EP0126865B1 (en) 1987-05-13

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EP84102413A Expired EP0126865B1 (en) 1983-03-24 1984-03-07 Press for exerting a pressure on an area

Country Status (8)

Country Link
US (1) US4555988A (en)
EP (1) EP0126865B1 (en)
JP (1) JPS60901A (en)
AT (1) ATE27119T1 (en)
DE (1) DE3310700A1 (en)
ES (1) ES530859A0 (en)
FI (1) FI79668C (en)
IN (1) IN160413B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800210A1 (en) * 1987-02-11 1988-08-25 Tampella Oy Ab DEVICE FOR SEALING A CHAMBER CONTAINING PRESSURE MEDIUM

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417289A1 (en) * 1984-05-10 1985-11-14 Fa. Theodor Hymmen, 4800 Bielefeld DEVICE FOR APPLYING A SURFACE PRESS TO PROGRESSIVE WORKPIECES
DE3417288A1 (en) * 1984-05-10 1985-11-14 Fa. Theodor Hymmen, 4800 Bielefeld DEVICE FOR APPLYING A SURFACE PRESS TO PROGRESSIVE WORKPIECES
DE3424599A1 (en) * 1984-07-04 1986-01-09 Fa. Theodor Hymmen, 4800 Bielefeld DEVICE FOR APPLYING A SURFACE PRESS TO PROGRESSIVE WORKPIECES
DE3436158A1 (en) * 1984-10-03 1986-04-10 Held, Kurt, 7218 Trossingen SLIDING SURFACE SEALS ON DOUBLE BELT PRESSES
DE3525154A1 (en) * 1985-07-13 1987-01-22 Santrade Ltd SEALING ARRANGEMENT FOR A DOUBLE BAND PRESS WITH PRESSURE CHAMBERS
USRE35091E (en) * 1986-08-18 1995-11-21 Mascheninfabrik Andritz Actiengesellschaft Pressure device and seal for filter belt machines
AT386544B (en) * 1986-08-18 1988-09-12 Andritz Ag Maschf MACHINE FOR PRESSING AND DRAINING OR FILTER
AT385681B (en) * 1986-08-18 1988-05-10 Andritz Ag Maschf PRINTING DEVICE FOR MACHINES OR PROVIDED MACHINE FOR DRAINING OR FILTER OR FOR PRESSED GOODS
DE3634274C1 (en) * 1986-10-08 1987-07-30 Santrade Ltd Temperature-resistant seal arrangement
DE3634273A1 (en) * 1986-10-08 1988-04-21 Santrade Ltd Sealing arrangement for the pressure chamber of a double-belt press
JPH082350B2 (en) * 1987-05-02 1996-01-17 コ−リン電子株式会社 Pulse wave detector
DE3722157A1 (en) * 1987-07-04 1989-01-12 Hymmen Theodor Gmbh DEVICE FOR APPLYING A SURFACE PRESSING ON CONTINUOUSLY MOVING MATERIAL SHEETS
ATA185093A (en) * 1993-09-14 2000-06-15 Danubia Petrochem Polymere DOUBLE BELT PRESS WITH HYDROSTATIC BELT SUPPORT
US6318727B1 (en) * 1999-11-05 2001-11-20 Kimberly-Clark Worldwide, Inc. Apparatus for maintaining a fluid seal with a moving substrate
CN102773903B (en) * 2012-07-23 2014-05-07 青岛国森机械有限公司 Unidirectionally-folded caterpillar band dedicated for continuously pressing bamboo and wood laminated material square stock
JP7058852B1 (en) * 2021-12-28 2022-04-25 株式会社Sgic Double belt press

Citations (6)

* Cited by examiner, † Cited by third party
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
DE2803523A1 (en) * 1978-01-27 1979-08-02 Siempelkamp Gmbh & Co Moulding press for continuous mfr. of laminates, chipboards, etc. - has non-rigid, composite frame and top and bottom crossbeams for easy dismantling and replacement of components
DE2803521A1 (en) * 1978-01-27 1979-08-02 Siempelkamp Gmbh & Co Moulding press for continuous mfr. of laminates, chipboards, etc. - has bending-moment-absorbing, lateral supports preventing deformation of press-belts
DE2953078A1 (en) * 1979-02-23 1980-09-04 Kurt Held Sliding seal for continuously working laminating machine - has pressure cushion formed behind belt and pressed against material to be laminated
DE2937972A1 (en) * 1979-09-20 1981-04-02 Theodor Hymmen Kg, 4800 Bielefeld DEVICE FOR APPLYING A SURFACE PRESSING TO PROGRESSIVE WORKPIECES
DE2937971A1 (en) * 1979-09-20 1981-04-02 Theodor Hymmen Kg, 4800 Bielefeld DEVICE FOR APPLYING A SURFACE PRESS TO PROGRESSIVE WORKPIECES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078083B (en) * 1951-05-28 1960-03-24 Sulzer Ag Door or lid for the automatic gas-tight closure of large-area openings, in particular of coke ovens or coke cooling chambers
GB1345290A (en) * 1971-12-23 1974-01-30 Dunlop Ltd Inflatable seals
US3839147A (en) * 1973-03-22 1974-10-01 Beloit Corp Fibrous web press nip structure including nonporous belts backed by fluid pressure chambers having flexible sills
DE2722197C2 (en) * 1977-05-17 1979-06-07 Kurt 7218 Trossingen Held Sliding surface seal on continuous laminating machines
US4420359A (en) * 1981-08-05 1983-12-13 Goldsworthy Engineering, Inc. Apparatus for producing fiber-reinforced plastic sheet structures

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
DE2803523A1 (en) * 1978-01-27 1979-08-02 Siempelkamp Gmbh & Co Moulding press for continuous mfr. of laminates, chipboards, etc. - has non-rigid, composite frame and top and bottom crossbeams for easy dismantling and replacement of components
DE2803521A1 (en) * 1978-01-27 1979-08-02 Siempelkamp Gmbh & Co Moulding press for continuous mfr. of laminates, chipboards, etc. - has bending-moment-absorbing, lateral supports preventing deformation of press-belts
DE2953078A1 (en) * 1979-02-23 1980-09-04 Kurt Held Sliding seal for continuously working laminating machine - has pressure cushion formed behind belt and pressed against material to be laminated
DE2937972A1 (en) * 1979-09-20 1981-04-02 Theodor Hymmen Kg, 4800 Bielefeld DEVICE FOR APPLYING A SURFACE PRESSING TO PROGRESSIVE WORKPIECES
DE2937971A1 (en) * 1979-09-20 1981-04-02 Theodor Hymmen Kg, 4800 Bielefeld DEVICE FOR APPLYING A SURFACE PRESS TO PROGRESSIVE WORKPIECES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800210A1 (en) * 1987-02-11 1988-08-25 Tampella Oy Ab DEVICE FOR SEALING A CHAMBER CONTAINING PRESSURE MEDIUM

Also Published As

Publication number Publication date
JPS60901A (en) 1985-01-07
FI841163A (en) 1984-09-25
FI841163A0 (en) 1984-03-22
US4555988A (en) 1985-12-03
ATE27119T1 (en) 1987-05-15
DE3310700C2 (en) 1993-04-22
ES8500811A1 (en) 1984-11-01
IN160413B (en) 1987-07-11
EP0126865B1 (en) 1987-05-13
ES530859A0 (en) 1984-11-01
DE3310700A1 (en) 1984-09-27
JPH0452762B2 (en) 1992-08-24
FI79668C (en) 1990-02-12
FI79668B (en) 1989-10-31

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