EP1091844A1 - Press, especially a continuous press - Google Patents

Press, especially a continuous press

Info

Publication number
EP1091844A1
EP1091844A1 EP99932727A EP99932727A EP1091844A1 EP 1091844 A1 EP1091844 A1 EP 1091844A1 EP 99932727 A EP99932727 A EP 99932727A EP 99932727 A EP99932727 A EP 99932727A EP 1091844 A1 EP1091844 A1 EP 1091844A1
Authority
EP
European Patent Office
Prior art keywords
press
cylinder
supply lines
cylinders
cylinder block
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
EP99932727A
Other languages
German (de)
French (fr)
Other versions
EP1091844B1 (en
Inventor
Dieter Jacobs
Wilfried Verspai
Karl Robert
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.)
Siempelkamp Giesserei KG
G Siempelkamp GmbH and Co KG
Original Assignee
Siempelkamp Giesserei KG
G Siempelkamp GmbH and Co 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 Siempelkamp Giesserei KG, G Siempelkamp GmbH and Co KG filed Critical Siempelkamp Giesserei KG
Publication of EP1091844A1 publication Critical patent/EP1091844A1/en
Application granted granted Critical
Publication of EP1091844B1 publication Critical patent/EP1091844B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B30B1/34—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—Cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7107—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being mechanically linked

Definitions

  • the invention relates to a press, in particular a continuous press for pressing pressed material mats into pressed material boards in the course of the production of chipboard, fiberboard and other wood-based panels, with press frames connecting press upper part and lower press part over the press length at predetermined intervals and with upper and lower press plates arranged within the press frame, press cylinder piston assemblies work on the upper and / or lower press plates and a plurality of press cylinder piston assemblies are arranged in series in the area of the press frame and connected on the one hand to the upper and / or lower cross member of the press frame in question, and on the other hand connected to the upper and / or lower press plate.
  • Such continuously operating presses are known, in which endlessly rotating steel press belts are supported on the press plates with the interposition of roller bars in the upper press part and lower press part and the press cylinder piston arrangements are designed as individual structural units. Consequently, a single assembly and supply of the individual press cylinder piston arrangements with a hydraulic medium must take place.
  • the singular assembly is problematic because the individual cylinders of the press cylinder piston arrangements arranged in series in the press frame can shift relative to one another.
  • Such cylinder displacements result from deformations of the press frame or its cross bars in the course of the pressing process, especially since the cylinder assembly is regularly on the cross bars of the press frame.
  • the displacements of the individual cylinders result in increased wear and sealing problems, but in particular also uneven pressure distributions on the pressure plates.
  • the invention has for its object to provide a press, in particular a continuous press, of the embodiment described at the outset, which is characterized by a simple, functional and reliable assembly of the press cylinder piston assemblies.
  • the theory of the invention can also be implemented in a cycle press, in which the cylinder block is then supported against the upper press part or lower press part or against the upper or lower press plate, and the pistons of the relevant press cylinder piston assemblies on the upper or lower press plate or on the upper press part or the
  • the invention provides that the cylinder block is supported against the upper or lower cross member of the press frame in question or against the upper or lower press plate, and that the pistons of the relevant press cylinder piston assemblies on the upper or lower press plate or on the upper or lower cross member of the press frame are connected.
  • one will support the cylinder block on a cross member of the press frame, while the connection of the pistons or their piston rods to a press plate allows sufficient movement to compensate for deformations of both the press frame and the press plates in the course of a pressing process.
  • the cylinder block is according to the invention as a casting block, for. B. made of gray cast iron or cast steel, with a cast piping to form the supply lines.
  • the supply lines are designed as bores in the cylinder block, which can also be designed as a steel block. In this way, sealing problems, in particular between the supply lines and the cylinders, are no longer to be feared.
  • the cylinders are expediently connected in pairs from the outside to the inside, at least with the implementation of symmetrical pressurization to the supply lines.
  • separate supply lines for the hydraulic medium are provided for this cylinder.
  • all are Cylinder of a cylinder block connected to the same supply lines.
  • the cylinders can be supplied with the hydraulic medium in such a way that a uniform pressure distribution and transmission to the press plates is ensured.
  • Fig. 1 shows a continuous press in sections in a schematic side view, in which the
  • Press cylinder piston assemblies work on the lower press plate
  • FIG. 2 shows a vertical section through the object according to FIG. 1 in the region of a press frame
  • FIG. 3 shows a cylinder block for the object according to FIG. 1 in a schematic front view
  • FIG. 4 is a plan view of the object of FIG. 1,
  • Fig. 5 a section of a cross section through cross bars of adjacent press frames with mounted cylinder block
  • FIG. 6 is a detail of the object of FIG. 3 with a differential cylinder
  • 7 is a plan view of a cylinder block according to the invention with supply lines leading to the indicated differential cylinders and plunger cylinders, and
  • Fig. 8 of a press the closed frame in block design with a cylinder block integrated in the lower beam.
  • a continuous press for pressing pressed material mats to pressed material boards in the course of the production of chipboard, fiberboard or the like is shown, namely with lower press part 1 and upper press part 2, in lower press part 1 and upper press part 2 endlessly rotating steel press belts 3, in the lower press part 1 and in the upper press part 2 heatable press plates 4, 5 are arranged and the steel press belts 3 are supported on the press plates 4, 5 with the interposition of roller bars 6.
  • Press frames 7 are arranged between the upper press part 2 and the lower press part 1 at predetermined intervals along the press length.
  • the upper and lower press plates 5, 4 are arranged within the press frame 7. According to the embodiment, 4 press cylinder piston assemblies 8, 9 work on the lower press plate.
  • a plurality of press cylinder piston assemblies 8, 9 are arranged in series and on the one hand on the lower cross members 10 of the press frame 7 in question, and on the other hand on the lower press plate 4 connected.
  • the cylinders 8 of the press cylinder piston arrangements arranged in series are arranged in a common cylinder block 11 or summarized.
  • the supply lines 12 leading to the cylinders 8 or hydraulic lines for the press cylinder arrangements 8, 9 are integrated in the cylinder block 11.
  • the cylinder block 11 is supported against the lower cross members 10 of the press frames 7 in question, the pistons 9 of the relevant press cylinder piston assemblies 8, 9 being connected to the lower press plate 4.
  • the cylinder block 11 is designed as a cast block made of gray cast iron or cast steel, the supply lines being designed as bores in the cylinder block.
  • the cylinders 8 are connected to the supply lines 12.
  • the attachment of the cylinder blocks 11 to the lower cross members 10 of the press frame 7 can be realized by means of a screw attachment. If the press cylinder piston assemblies 8, 9 work on the lower press plates 4, the cylinder blocks 11 can be assembled by hanging between the lower cross bars 10 of adjacent press frames 7. For this purpose, the cylinder blocks 11 have lateral mounting flanges 13.
  • the Zylmderbl ⁇ cke 11 is secured by means of stops 14, which are attached to the lower cross members 10, z. B. screwed.
  • the press cylinder arrangements 8, 9 can be both plunger cylinders and differential cylinders or a combination of both embodiments with corresponding pistons.
  • the piston 9 is pressurized alternately above and below the piston ring 15 with pressure medium via supply lines 12 opening out correspondingly to the differential cylinder 8.
  • a modified embodiment of the invention according to FIG. 8 is a press with a closed press frame 16 in a block construction, forming a lower beam 17 and an upper beam 18.
  • the press frame 16 is only shown schematically. In this case, the cylinder block 11 with the press cylinder piston arrangements 8, 9 and the supply lines 12 connected to the press cylinder piston arrangements 8, 9 and only indicated are integrated in the lower beam 17 of the press frame 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The invention relates to a press, comprising several pressure frames (2) positioned at predetermined intervals, with pressure cylinder plunger arrangements (8, 9) which act upon the lower pressure plate. A plurality of pressure cylinder plunger arrangements (8, 9) are located in a row in the area of each pressure frame (7). The cylinders in each row of pressure cylinders are arranged in a joint cylinder block (11). The supply lines for these cylinders are integrated into this cylinder block. This ensures that the pressure cylinder plunger arrangements are easily assembled in a functional, reliable manner.

Description

Presse, insbesondere kontinuierliche Presse Press, especially continuous press
Beschreibungdescription
Die Erfindung betrifft eine Presse, insbesondere kontinuierliche Presse zum Verpressen von Preßgutmatten zu Preßgutplatten im Zuge der Herstellung von Spanplatten, Faserplatten und anderen Holzwerkstoffplatten, mit Pressenoberteil und Pressenunterteil über die Pressenlänge in vorgegebenen Abständen verbindenden Pressenrahmen und mit innerhalb der Pressenrahmen angeordneten oberen und unteren Preßplatten, wobei auf die oberen und/oder unteren Preßplatten Preßzylinderkolbenanordnungen arbeiten und im Bereich der Pressenrahmen jeweils eine Mehrzahl von Preßzylinderkolbenanordnungen in Reihe angeordnet und einerseits an den oberen und/oder unteren Querholm der betreffenden Pressenrahmen, andererseits an die obere und/oder untere Preßplatte angeschlossen ist.The invention relates to a press, in particular a continuous press for pressing pressed material mats into pressed material boards in the course of the production of chipboard, fiberboard and other wood-based panels, with press frames connecting press upper part and lower press part over the press length at predetermined intervals and with upper and lower press plates arranged within the press frame, press cylinder piston assemblies work on the upper and / or lower press plates and a plurality of press cylinder piston assemblies are arranged in series in the area of the press frame and connected on the one hand to the upper and / or lower cross member of the press frame in question, and on the other hand connected to the upper and / or lower press plate.
Es sind derartige kontinuierlich arbeitende Pressen bekannt, bei denen im Pressenoberteil und Pressenunterteil endlos umlaufende Stahlpreßbänder unter Zwischenschaltung von Rollstäben an den Preßplatten abgestützt und die Preßzylinderkolbenanordnungen als einzelne Baueinheiten ausgebildet sind. Folglich muß eine singuläre Montage und Versorgung der einzelnen Preßzylinderkolbenanordnungen mit einem Hydraulikmedium erfolgen. Die singuläre Montage ist problematisch, weil sich die Einzelzylinder der in Pressenrahmen in Reihe angeordneten Preßzylinderkolbenanordnungen 'i Relation zueinander verschieben können. Derartige Zylinderverschiebungen resultieren aus Verformungen der Pressenrahmen bzw. ihrer Querholme im Zuge des Preßvorganges, zumal die Zylindermontage regelmäßig auf den Querholmen der Pressenrahmen erfolgt . Aus den Verschiebungen der Einzelzylmder resultieren erhöhte Verschleißerschemungen und Dichtungsprobleme, insbesondere aber auch ungleichmäßige Druckverteilungen auf die Preßplatten. Das wiederum kann zu Qualitätsminderungen bei den gepreßten Produkten wie beispielsweise Spanplatten, Faserplatten oder dergleichen Holzwerkstoffplatten führen. Die singuläre Versorgung ist problematisch, weil zu jeder einzelnen Preßzylmderkolbenanordnung die für deren Betätigung mittels eines Hydraulikmediums erforderlichen Versorgungsleitungen verlegt werden müssen. Das führt zu einer raumaufwendigen Bauweise, obwohl nur wenig Montageplatz zur Verfügung steht und deshalb stets eine enge und kompakte Bauweise angestrebt wird. Hinzukommt, daß die Montage der Versorgungsleitungen selbst aufwendig und schwierig ist. Ferner muß eine ungeschützte Verlegung der Versorgungsleitungen in Kauf genommen werden. Im übrigen ist auch die Zylinderhaiterung der einzelnen Preßzylinderkolbenanordnungen verhältnismäßig kompliziert. - Hier will die Erfindung Abhilfe schaffen.Such continuously operating presses are known, in which endlessly rotating steel press belts are supported on the press plates with the interposition of roller bars in the upper press part and lower press part and the press cylinder piston arrangements are designed as individual structural units. Consequently, a single assembly and supply of the individual press cylinder piston arrangements with a hydraulic medium must take place. The singular assembly is problematic because the individual cylinders of the press cylinder piston arrangements arranged in series in the press frame can shift relative to one another. Such cylinder displacements result from deformations of the press frame or its cross bars in the course of the pressing process, especially since the cylinder assembly is regularly on the cross bars of the press frame. The displacements of the individual cylinders result in increased wear and sealing problems, but in particular also uneven pressure distributions on the pressure plates. This in turn can lead to a reduction in the quality of the pressed products such as chipboard, fiberboard or similar wood-based panels. The singular supply is problematic because the supply lines required for their actuation by means of a hydraulic medium have to be laid for each individual Preßzylmderkolbenanordnung. This leads to a space-consuming construction, although there is little installation space available and therefore a narrow and compact construction is always sought. In addition, the installation of the supply lines themselves is complex and difficult. Furthermore, an unprotected laying of the supply lines must be accepted. In addition, the cylinder holder of the individual press cylinder piston assemblies is also relatively complicated. - The invention seeks to remedy this.
Der Erfindung liegt die Aufgabe zugrunde, eine Presse, insbesondere kontinuierliche Presse, der eingangs beschriebenen Ausfuhrungsform zu schaffen, die sich durch eine einfache, funktionsgerechte und betriebssichere Montage der Preßzylinderkolbenanordnungen auszeichnet.The invention has for its object to provide a press, in particular a continuous press, of the embodiment described at the outset, which is characterized by a simple, functional and reliable assembly of the press cylinder piston assemblies.
Diese Aufgabe löst die Erfindung bei einer gattungsgemäßen Presse, insbesondere kontinuierlichen Presse, der eingangs beschriebenen Ausfuhrungsform dadurch, daß die Zylinder der jeweils in Reihe angeordneten Preßzylinderkolbenanordnungen m einem gemeinsamen Zylinderblock angeordnet sind, und daß die Versorgungsleitungen, z. B. Hydraulikleitungen für die Preßzylinderkolbenanordnungen in den Zylinderblock integriert sind. - Diese Maßnahmen der Erfindung haben zur Folge, daß die Zylinder einer Preßzylinderreihe einschließlich ihrer Versorgungsleitungen en bloc erfolgen kann. Dadurch wird die Montage sowohl der Zylinder als auch ihrer Versorgungsleitungen erheblich erleichtert und auf engstem Raum möglich. Da die Zylinder in einem Zylinderblock zusammengefaßt sind, sind gegenseitige Verschiebungen der Zylinder praktisch ausgeschlossen, vielmehr wird stets eine gleichmäßige Druckverteilung im Zuge des Preßvorganges erreicht, zumal die Orte des Kraftangriffes stets die gleichen sind. Hinzukommt, daß Verformungen der betreffenden Querholme der Pressenrahmen beachtlich reduziert werden, wenn der Zylinderblock auf solchen Querholmen montiert wird und zu deren Versteifung beiträgt. Berücksichtigt man ferner die Tatsache, daß die Versorgungsleitungen für die Zylinder in dem Zylinderblock untergebracht sind, dann resultiert daraus eine geschützte und insgesamt besonders betriebssichere und funktionsgerechte Bauweise, die sich durch einfache Montage auszeichnet und zu einer Stabilisierung der Pressenrahmen infolge der Blocksteifigkeit des Zylinderblocks führt.This object is achieved by the invention in the case of a generic press, in particular a continuous press, of the embodiment described at the outset in that the cylinders of the press cylinder piston arrangements arranged in series are arranged in a common cylinder block, and in that the supply lines, e.g. B. hydraulic lines for the ram cylinder arrangements are integrated in the cylinder block. - These measures of the invention have the result that the cylinders of a row of press cylinders including their supply lines can be done en bloc. As a result, the assembly of both the cylinders and their supply lines is made considerably easier and possible in the smallest of spaces. Since the cylinders are combined in a cylinder block, mutual displacements of the cylinders are practically impossible, rather an even pressure distribution is always achieved in the course of the pressing process, especially since the locations of the force application are always the same. In addition, deformations of the relevant crossbars of the press frames are considerably reduced if the cylinder block is mounted on such crossbars and contributes to their stiffening. Taking into account the fact that the supply lines for the cylinders are housed in the cylinder block, this results in a protected and overall particularly reliable and functional design, which is characterized by simple assembly and leads to stabilization of the press frame due to the block rigidity of the cylinder block.
Die Erfindungslehre läßt sich auch bei einer Taktpresse verwirklichen, bei welcher dann der Zylinderblock gegen das Pressenoberteil oder Pressenunterteil oder gegen die obere oder untere Preßplatte abgestützt ist, und die Kolben der betreffenden Preßzylinderkolbenanordnungen an die obere oder untere Preßplatte oder an das Pressenoberteil oder dasThe theory of the invention can also be implemented in a cycle press, in which the cylinder block is then supported against the upper press part or lower press part or against the upper or lower press plate, and the pistons of the relevant press cylinder piston assemblies on the upper or lower press plate or on the upper press part or the
Pressenunterteil angeschlossen sind. Auch bei einer Taktpresse wird auf diese Weise eine gute Druckverteilung erzielt .Lower press part are connected. Even with one A good pressure distribution is achieved in this way.
Weitere erfindungswesentliche Merkmale sind im folgenden aufgeführt. So sieht die Erfindung vor, daß der Zylinderblock gegen den oberen oder unteren Querholm der betreffenden Pressenrahmen oder gegen die obere oder untere Preßplatte abgestützt ist, und daß die Kolben der betreffenden Preßzylinderkolbenanordnungen an der oberen oder unteren Preßplatte oder an dem oberen oder unteren Querholm der Pressenrahmen angeschlossen sind. Vorzugsweise wird man den Zylinderblock an einen Querholm der Pressenrahmen abstützen, während der Anschluß der Kolben bzw. ihrer Kolbenstangen an eine Preßplatte ein hinreichendes Bewegungsspiel zum Ausgleich von Verformungen sowohl der Pressenrahmen als auch der Preßplatten im Zuge eines Preßvorganges zuläßt. Der Zylinderblock ist erfindungsgemäß als Gußblock, z. B. aus Grauguß oder Stahlguß, mit einer eingegossenen Verrohrung zur Bildung der Versorgungsleitungen ausgebildet. Es besteht aber auch die Möglichkeit, daß die Versorgungsleitungen als Bohrungen in dem Zylinderblock ausgeführt sind, der auch als Stahlblock ausgeführt sein kann. Auf diese Weise sind Dichtungsprobleme insbesondere zwischen den Versorgungsleitungen und den Zylindern nicht länger zu befürchten. Die Zylinder sind zweckmäßigerweise von außen nach innen paarweise, jedenfalls unter Verwirklichung einer symmetrischen Druckbeaufschlagung an die Versorgungsleitungen angeschlossen. Bei einem in der Gußblockmitte angeordneten Zylinder sind für diesen Zylinder eigene Versorgungsleitungen für das Hydraulikmedium vorgesehen. Nach einer bevorzugten Ausfuhrungsform sind sämtliche Zylinder eines Zylinderblocks an die gleichen Versorgungsleitungen angeschlossen. - Jedenfalls lassen sich bei dem erfindungsgemäßen Zylinderblock die Zylinder derart mit dem Hydraulikmedium versorgen, daß eine gleichmäßige Druckverteilung und -Übertragung auf die Preßplatten gewährleistet ist.Further features essential to the invention are listed below. Thus, the invention provides that the cylinder block is supported against the upper or lower cross member of the press frame in question or against the upper or lower press plate, and that the pistons of the relevant press cylinder piston assemblies on the upper or lower press plate or on the upper or lower cross member of the press frame are connected. Preferably, one will support the cylinder block on a cross member of the press frame, while the connection of the pistons or their piston rods to a press plate allows sufficient movement to compensate for deformations of both the press frame and the press plates in the course of a pressing process. The cylinder block is according to the invention as a casting block, for. B. made of gray cast iron or cast steel, with a cast piping to form the supply lines. But there is also the possibility that the supply lines are designed as bores in the cylinder block, which can also be designed as a steel block. In this way, sealing problems, in particular between the supply lines and the cylinders, are no longer to be feared. The cylinders are expediently connected in pairs from the outside to the inside, at least with the implementation of symmetrical pressurization to the supply lines. In the case of a cylinder arranged in the middle of the casting block, separate supply lines for the hydraulic medium are provided for this cylinder. According to a preferred embodiment, all are Cylinder of a cylinder block connected to the same supply lines. - In any case, in the cylinder block according to the invention, the cylinders can be supplied with the hydraulic medium in such a way that a uniform pressure distribution and transmission to the press plates is ensured.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen:In the following, the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. Show it:
Fig. 1 eine kontinuierliche Presse ausschnittsweise in schematischer Seitenansicht, bei welcher dieFig. 1 shows a continuous press in sections in a schematic side view, in which the
Preßzylinderkolbenanordnungen auf die untere Preßplatte arbeiten,Press cylinder piston assemblies work on the lower press plate,
Fig. 2 einen Vertikalschnitt durch den Gegenstand nach Fig. 1 im Bereich eines Pressenrahmens,2 shows a vertical section through the object according to FIG. 1 in the region of a press frame,
Fig. 3 einen Zylinderblock für den Gegenstand nach Fig. 1 in schematischer Frontansicht,3 shows a cylinder block for the object according to FIG. 1 in a schematic front view,
Fig. 4 eine Draufsicht auf den Gegenstand nach Fig. 1,4 is a plan view of the object of FIG. 1,
Fig. 5 ausschnittsweise einen Querschnitt durch Querholme benachbarter Pressenrahmen mit montiertem Zylinderblock undFig. 5 a section of a cross section through cross bars of adjacent press frames with mounted cylinder block and
Fig. 6 ausschnittsweise den Gegenstand nach Fig. 3 mit einem Differentialzylinder, Fig. 7 eine Draufsicht auf einen erfindungsgemäßen Zylinderblock mit zu den angedeuteten Differential - zylindern und PlungerZylindern führenden Versorgungsleitungen, und6 is a detail of the object of FIG. 3 with a differential cylinder, 7 is a plan view of a cylinder block according to the invention with supply lines leading to the indicated differential cylinders and plunger cylinders, and
Fig. 8 von einer Presse den geschlossenen Rahmen in Blockbauweise mit in den Unterholm integriertem Zylinderblock.Fig. 8 of a press the closed frame in block design with a cylinder block integrated in the lower beam.
In den Figuren ist eine kontinuierliche Presse zum Verpressen von Preßgutmatten zu Preßgutplatten im Zuge der Herstellung von Spanplatten, Faserplatten oder dergleichen dargestellt, und zwar mit Pressenunterteil 1 und Pressenoberteil 2, im Pressenunterteil 1 und Pressenoberteil 2 endlos umlaufenden Stahlpreßbändern 3, wobei im Pressenunterteil 1 und im Pressenoberteil 2 beheizbare Preßplatten 4, 5 angeordnet sind und die Stahlpreßbänder 3 an den Preßplatten 4, 5 unter Zwischenschaltung von Rollstäben 6 abgestützt sind. Zwischen Pressenoberteil 2 und Pressen- unterteil 1 sind Pressenrahmen 7 in über die Pressenlänge vorgegebenen Abständen angeordnet. Innerhalb der Pressenrahmen 7 sind die oberen und unteren Preßplatten 5, 4 angeordnet . Nach dem Ausführungsbeispiel arbeiten auf die untere Preßplatte 4 Preßzylinderkolbenanordnungen 8, 9. Im Bereich der einzelnen Pressenrahmen 7 ist jeweils eine Mehrzahl von Preßzylinderkolbenanordnungen 8, 9 in Reihe angeordnet und einerseits an die unteren Querholme 10 der betreffenden Pressehrahmen 7, andererseits an die untere Preßplatte 4 angeschlossen. Die Zylinder 8 der jeweils in Reihe angeordneten Preßzylinderkolbenanordnungen sind in einem gemeinsamen Zylinderblock 11 angeordnet bzw. zusammengefaßt. Die zu den Zylindern 8 führenden Versorgungsleitungen 12 bzw. Hydraulikleitungen für die Preß- zylInderanordnungen 8, 9 sind m den Zylinderblock 11 integriert. Der Zylinderblock 11 ist nach dem Ausfuh- rungsbeispiel jeweils gegen die unteren Querholme 10 der betreffenden Pressenrahmen 7 abgestützt, wobei die Kolben 9 der betreffenden Preßzylinderkolbenanordnungen 8, 9 an die untere Preßplatte 4 angeschlossen sind. Der Zylinderblock 11 ist als Gußblock aus Grauguß oder Stahlguß ausgeführt, wobei die Versorgungsleitungen als Bohrungen m dem Zylinderblock ausgebildet sind. Die Zylinder 8 sind an die Versorgungsleitungen 12 angeschlossen. Die Befestigung der Zylinderblöcke 11 an den unteren Querholmen 10 der Pressenrahmen 7 kann im Wege einer Schraubbefestigung verwirklicht werden. Sofern die Preßzylinderkolbenanordnungen 8, 9 auf die unteren Preßplatten 4 arbeiten, kann die Montage der Zylinderblocke 11 durch Einhängen zwischen den unteren Querholmen 10 benachbarter Pressenrahmen 7 erfolgen. Dazu weisen die Zylinderblöcke 11 seitliche Montageflansche 13 auf. Die Sicherung der Zylmderblόcke 11 erfolgt mittels Anschläge 14, die auf den unteren Querholmen 10 befestigt, z. B. verschraubt werden.In the figures, a continuous press for pressing pressed material mats to pressed material boards in the course of the production of chipboard, fiberboard or the like is shown, namely with lower press part 1 and upper press part 2, in lower press part 1 and upper press part 2 endlessly rotating steel press belts 3, in the lower press part 1 and in the upper press part 2 heatable press plates 4, 5 are arranged and the steel press belts 3 are supported on the press plates 4, 5 with the interposition of roller bars 6. Press frames 7 are arranged between the upper press part 2 and the lower press part 1 at predetermined intervals along the press length. The upper and lower press plates 5, 4 are arranged within the press frame 7. According to the embodiment, 4 press cylinder piston assemblies 8, 9 work on the lower press plate. In the area of the individual press frames 7, a plurality of press cylinder piston assemblies 8, 9 are arranged in series and on the one hand on the lower cross members 10 of the press frame 7 in question, and on the other hand on the lower press plate 4 connected. The cylinders 8 of the press cylinder piston arrangements arranged in series are arranged in a common cylinder block 11 or summarized. The supply lines 12 leading to the cylinders 8 or hydraulic lines for the press cylinder arrangements 8, 9 are integrated in the cylinder block 11. According to the exemplary embodiment, the cylinder block 11 is supported against the lower cross members 10 of the press frames 7 in question, the pistons 9 of the relevant press cylinder piston assemblies 8, 9 being connected to the lower press plate 4. The cylinder block 11 is designed as a cast block made of gray cast iron or cast steel, the supply lines being designed as bores in the cylinder block. The cylinders 8 are connected to the supply lines 12. The attachment of the cylinder blocks 11 to the lower cross members 10 of the press frame 7 can be realized by means of a screw attachment. If the press cylinder piston assemblies 8, 9 work on the lower press plates 4, the cylinder blocks 11 can be assembled by hanging between the lower cross bars 10 of adjacent press frames 7. For this purpose, the cylinder blocks 11 have lateral mounting flanges 13. The Zylmderblόcke 11 is secured by means of stops 14, which are attached to the lower cross members 10, z. B. screwed.
Bei den Preßzylinderanordnungen 8, 9 kann es sich sowohl um Plungerzylmder als auch um Differentialzylmder oder auch um eine Kombination beider Ausfuhrungsformen mit entsprechenden Kolben handeln. Bei der m Fig. 6 dargestellten Ausfuhrungsform als Diffentialzylmder wird der Kolben 9 wechselweise oberhalb und unterhalb des Kolbenringes 15 mit Druckmedium über entsprechend m den Differentialzylmder 8 mündende Versorgungsleitungen 12 beaufschlagt. Bei einer abgewandelten Ausführungsform der Erfindung nach Fig. 8 handelt es sich um eine Presse mit einem geschlossenen Pressenrahmen 16 in Blockbauweise unter Bildung eines Unterholms 17 und eines Oberholms 18. Der Pressenrahmen 16 ist lediglich schematisch dargestellt. In diesem Fall sind der Zylinderblock 11 mit den Preßzylinderkolbenanordnungen 8, 9 und die an die Preßzylinderkolbenanordnungen 8, 9 angeschlossenen und lediglich angedeuteten Versorgungsleitungen 12 in den Unterholm 17 des Pressenrahmens 16 integriert. The press cylinder arrangements 8, 9 can be both plunger cylinders and differential cylinders or a combination of both embodiments with corresponding pistons. In the embodiment shown in FIG. 6 as a differential cylinder, the piston 9 is pressurized alternately above and below the piston ring 15 with pressure medium via supply lines 12 opening out correspondingly to the differential cylinder 8. A modified embodiment of the invention according to FIG. 8 is a press with a closed press frame 16 in a block construction, forming a lower beam 17 and an upper beam 18. The press frame 16 is only shown schematically. In this case, the cylinder block 11 with the press cylinder piston arrangements 8, 9 and the supply lines 12 connected to the press cylinder piston arrangements 8, 9 and only indicated are integrated in the lower beam 17 of the press frame 16.

Claims

Patentansprüche claims
1. Presse, insbesondere kontinuierliche Presse zum Verpressen von Preßgutmatten zu Preßgutplatten im Zuge der Herstellung von Spanplatten, Faserplatten und anderen Holz- werkstoffplatten, mit Pressenoberteil und Pressenunterteil über die Pressenlänge in vorgegebenen Abständen verbindenden Pressenrahmen und innerhalb der Pressenrahmen angeordneten oberen und unteren Preßplatten, wobei auf die oberen und/oder unteren Preßplatten Preßzylinderkolbenanordnungen arbeiten und im Bereich der Pressenrahmen jeweils eine Mehrzahl von Preßzylinderkolbenanordnungen in Reihe angeordnet und einerseits an den oberen und/oder unteren Querholm des betreffenden Pressenrahmens, andererseits an die obere und/oder untere Preßplatte angeschlossen sind, d a d u r c h g e k e n nz e i c h n e t, daß die Zylinder (8) der jeweils in Reihe angeordneten Preßzylinderkolbenanordnungen (8, 9) in einem gemeinsamen Zylinderblock (11) angeordnet sind, und daß die Versorgungsleitungen (12), z. B. Hydraulikleitungen, für die Preßzylinderkolbenanordnungen (8, 9) in den Zylinderblock (11) integriert sind.1. Press, in particular continuous press for pressing pressed material mats to pressed material boards in the course of the production of chipboard, fiberboard and other wood-based panels, with press upper part and lower press part over the press length at predetermined intervals connecting press frames and upper and lower press plates arranged within the press frame, whereby on the upper and / or lower press plates, press cylinder piston arrangements work and a plurality of press cylinder piston arrangements are arranged in series in the area of the press frame and connected on the one hand to the upper and / or lower cross member of the press frame in question, and on the other hand connected to the upper and / or lower press plate nz equates that the cylinders (8) of each arranged in series ram cylinder arrangements (8, 9) are arranged in a common cylinder block (11), and that the supply lines (12), for. B. hydraulic lines for the cylinder press assemblies (8, 9) in the cylinder block (11) are integrated.
2. Presse, insbesondere Taktpresse, mit Pressenoberteil und Pressenunterteil, mit oberen und unteren Preßplatten, wobei auf die oberen und/oder unteren Preßplatten Preßzylinderkolbenanordnungen arbeiten und jeweils eine Mehrzahl von Preßzylinderkolbenanordnungen in Reihe angeordnet und einerseits an das Pressenoberteil und/oder Pressenunterteil, andererseits an die obere und/oder untere Preßplatte angeschlossen sind, d a d u r c h g e k e n nz e i c h n e t, daß die Zylinder (8) der jeweils in Reihe angeordneten Preßzylinderkolbenanordnungen (8, 9) in einem gemeinsamen Zylinderblock (11) angeordnet sind, und daß die Versorgungsleitungen (12), z. B. Hydraulikleitungen, für die Preßzylinderkolbenanordnungen (8, 9) in den Zylinderblock (11) integriert sind.2. Press, in particular cycle press, with upper press part and lower press part, with upper and lower press plates, press cylinder piston arrangements working on the upper and / or lower press plates and in each case a plurality of press cylinder piston arrangements arranged in series and, on the one hand, to the press upper part and / or press part, on the other hand the upper and / or lower press plate are connected, dadurchgeken nz equates that the cylinder (8) each in series arranged ram cylinder arrangements (8, 9) are arranged in a common cylinder block (11), and that the supply lines (12), for. B. hydraulic lines for the cylinder press assemblies (8, 9) in the cylinder block (11) are integrated.
3. Presse nach Anspruch 1, dadurch gekennzeichnet, daß der Zylinderblock (11) gegen den oberen oder unteren Querholm (10) der betreffenden Pressenrahmen (7) oder gegen die obere oder untere Preßplatte (5 bzw. 4) abgestützt ist, und daß die Kolben der betreffenden Preßzylinderkolbenanordnungen (8, 9) an die obere oder untere Preßplatte (5 bzw. 4) oder an den oberen oder unteren Querholm (10) angeschlossen sind.3. Press according to claim 1, characterized in that the cylinder block (11) against the upper or lower cross member (10) of the press frame in question (7) or against the upper or lower press plate (5 or 4) is supported, and that Pistons of the relevant press cylinder piston assemblies (8, 9) are connected to the upper or lower press plate (5 or 4) or to the upper or lower cross member (10).
4. Presse nach Anspruch 2, dadurch gekennzeichnet, daß der Zylinderblock (11) gegen das Pressenoberteil oder das Pressenunterteil oder gegen die obere oder untere Preßplatte (5 bzw. 4) abgestützt ist, und daß die Kolben (9) der betreffenden Preßzylinderkolbenanordnungen (8, 9) an die obere oder untere Preßplatte (5 bzw. 4) oder an das Pressenoberteil oder das Pressenunterteil angeschlossen sind.4. Press according to claim 2, characterized in that the cylinder block (11) is supported against the upper press part or the lower press part or against the upper or lower press plate (5 or 4), and that the piston (9) of the relevant press cylinder piston assemblies (8 , 9) are connected to the upper or lower press plate (5 or 4) or to the upper press part or the lower press part.
5. Presse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Zylinderblock (11) als Gußblock mit einer eingegossenen Verrohrung zur Bildung der Versorgungsleitungen (12) ausgebildet ist.5. Press according to one of claims 1 to 4, characterized in that the cylinder block (11) is designed as a cast block with cast piping to form the supply lines (12).
6. Presse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Versorgungsleitungen (12) als Bohrungen in dem Zylinder (11) ausgeführt sind. 6. Press according to one of claims 1 to 4, characterized in that the supply lines (12) are designed as bores in the cylinder (11).
7. Presse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Zylinder (8) in beliebiger Reihenfolge an die Versorgungsleitungen (12) angeschlossen sind.7. Press according to one of claims 1 to 6, characterized in that the cylinders (8) are connected in any order to the supply lines (12).
8. Presse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Zylinder (8) von außen nach innen paarweise an die Versorgungsleitungen (12) angeschlossen sind.8. Press according to one of claims 1 to 6, characterized in that the cylinders (8) are connected in pairs from the outside inwards to the supply lines (12).
9. Presse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß bei einem in der Blockmitte angeordneten Zylinder (8) für diesen Zylinder eigene Versorgungsleitungen (12) vorgesehen sind.9. Press according to one of claims 1 to 6, characterized in that in the case of a cylinder (8) arranged in the block center, separate supply lines (12) are provided for this cylinder.
10. Presse nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Zylinderblock (11) randseitige Montageflansche (13) zum Einhängen, z. B. Einsetzen, zwischen den Querholmen (10) benachbarter Pressenrahmen (7) aufweist .10. Press according to one of claims 1 to 9, characterized in that the cylinder block (11) edge-side mounting flanges (13) for hanging, for. B. insertion, between the cross bars (10) adjacent press frame (7).
11. Presse nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Zylinder (8) als Plungerzylinder und/oder Differentialzylinder ausgebildet sind.11. Press according to one of claims 1 to 10, characterized in that the cylinders (8) are designed as plunger cylinders and / or differential cylinders.
12. Presse nach Anspruch 2, mit einem geschlossenen Pressenrahmen in Blockbauweise unter Bildung eines Unterholms und eines Oberholms, dadurch gekennzeichnet, daß der Zylinderblock (11) mit den Preßzylinderkolbenanordnungen (8, 9) und die an die Preßzylinderkolbenanordnungen (8, 9) angeschlossenen Versorgungsleitungen (12) in den Unterholm (17) und/oder Oberholm (18) des Pressenrahmens (16) integriert sind. 12. Press according to claim 2, with a closed press frame in block construction with the formation of a lower spar and an upper spar, characterized in that the cylinder block (11) with the ram cylinder piston assemblies (8, 9) and the supply lines connected to the ram cylinder piston assemblies (8, 9) (12) in the lower beam ( 17 ) and / or upper beam (18) of the press frame (16) are integrated.
EP99932727A 1998-06-27 1999-06-24 Press, especially a continuous press Expired - Lifetime EP1091844B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19828822A DE19828822C1 (en) 1998-06-27 1998-06-27 Continuous press for wood chip panels
DE19828822 1998-06-27
PCT/EP1999/004403 WO2000000346A1 (en) 1998-06-27 1999-06-24 Press, especially a continuous press

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EP1091844A1 true EP1091844A1 (en) 2001-04-18
EP1091844B1 EP1091844B1 (en) 2002-12-18

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EP (1) EP1091844B1 (en)
CN (1) CN1094826C (en)
AU (1) AU4900999A (en)
DE (2) DE19828822C1 (en)
WO (1) WO2000000346A1 (en)

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EP2514585B1 (en) * 2011-04-21 2019-01-16 Siempelkamp Maschinen- und Anlagenbau GmbH Continuous press
EP2527113B1 (en) * 2011-05-27 2015-12-02 Siempelkamp Maschinen- und Anlagenbau GmbH Continuous press and process to manufacture wood panels
EP2527115B1 (en) * 2011-05-27 2015-10-14 Siempelkamp Maschinen- und Anlagenbau GmbH Continuous press and associated process
EP2527116B1 (en) * 2011-05-27 2015-10-07 Siempelkamp Maschinen- und Anlagenbau GmbH Continuous press and Process using such press
CN103008485B (en) * 2012-12-07 2016-03-02 宁波精达成形装备股份有限公司 The straight tube end clamping device of electric tube expander
CN107073861A (en) * 2014-09-19 2017-08-18 斯蒂-B及T集团股份公司 Press unit for producing the particularly press device of the product of ceramic product
CN104552503B (en) * 2015-01-30 2017-02-22 北京林业大学 Continuous pneumatic floating-press short-cycle veneering hot press
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DE19828822C1 (en) 1999-09-30
DE59903845D1 (en) 2003-01-30
AU4900999A (en) 2000-01-17
CN1094826C (en) 2002-11-27
WO2000000346A1 (en) 2000-01-06
CN1307520A (en) 2001-08-08
EP1091844B1 (en) 2002-12-18

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