EP0324070A2 - Press for the continuous production of fibre boards or the like - Google Patents

Press for the continuous production of fibre boards or the like Download PDF

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Publication number
EP0324070A2
EP0324070A2 EP88118080A EP88118080A EP0324070A2 EP 0324070 A2 EP0324070 A2 EP 0324070A2 EP 88118080 A EP88118080 A EP 88118080A EP 88118080 A EP88118080 A EP 88118080A EP 0324070 A2 EP0324070 A2 EP 0324070A2
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EP
European Patent Office
Prior art keywords
press
press drum
drum
bearings
pressure rollers
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
EP88118080A
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German (de)
French (fr)
Other versions
EP0324070A3 (en
EP0324070B1 (en
Inventor
Rolf Gersbeck
Karsten Dipl.-Ing. Müller
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.)
KraussMaffei Berstorff GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
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.)
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Publication date
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Publication of EP0324070A2 publication Critical patent/EP0324070A2/en
Publication of EP0324070A3 publication Critical patent/EP0324070A3/en
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Publication of EP0324070B1 publication Critical patent/EP0324070B1/en
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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
    • 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
    • B27N3/26—Moulding or pressing characterised by using continuously acting presses having a heated press drum and an endless belt to compress the material between belt and drum

Definitions

  • the invention relates to a press of the type as described in the preamble of the first claim.
  • a press of this type is known from DE-PS 27 24 060. Presses based on this principle have been further developed in order to achieve a higher output. For this purpose, the press section had to be extended while the binder hardening time remained the same.
  • An extension of the press section means with rotary presses, i.e. in the case of presses with a rotating drum, in which the compression takes place between the outer drum shell and an endless steel belt, which is partially wrapped around the drum and is under tension, the drum diameter increases.
  • the latest presses of this type have drums with a diameter of 5 m, a bale length of approx. 3 m and a drum weight of approx. 110 t.
  • a disadvantage of such large presses is that due to the required assembly and manufacturing tolerances on the press when starting and when empty, damage to the endless steel belt, the outer drum shell and the pressure rollers occur because these machine parts touch without metal to be pressed.
  • the press should also be able to produce the thinnest particle or fiberboard webs from one millimeter with extremely low thickness tolerances, high specific strengths and good bending and impact strength.
  • the radial adjustability of the axis of the press drum relative to the axes of the deflection and pressure rollers ensures that the axis of the very heavy press drum is fixed at one point.
  • the gap (distance) thus set between the drum shell and the pressure and deflection rollers is adhered to exactly, which prevents damage to the steel printing tape and the roller and drum surfaces, because assembly tolerances and play of the individual components of the press are effectively eliminated.
  • the advantage of the press according to the invention is very clear in the production of webs of, for example, a thickness of 1 mm, that is to say web thicknesses which lie within the assembly play of the components of the press.
  • the definite radial setting of the large drum axis allows the large drum to be positioned exactly, so that despite the assembly-related tolerances of the components (stands and bearings), which can be up to 1.5 mm, an exact thickness adjustment of the web to be produced is achieved.
  • the radial adjustment of the axis of the press drum relative to the axes of the deflection and pressure rollers takes place by means of additional bearings arranged on the axle ends, to which a hydraulic cylinder which is supported on the stand acts.
  • the embodiment described in claim 3 provides an adjusting device with a hydraulic cylinder and a lever arm, so that the adjustment of the axis takes place about a fixed point arranged on the stand. Such an adjustment device is less expensive to manufacture and operate.
  • the adjusting device according to claim 4 with two hydraulic cylinders arranged parallel to each other below the drum axis and symmetrically on each side of the center of the axis is particularly advantageous since the adjusting force is doubled.
  • the press shown in Fig. 1 consists of the stand 1, which receives the central press drum 2.
  • the pressure rollers 2, the pressure rollers 3, 4 and 5 are assigned.
  • An endless steel belt 6 is placed under high tension by the tension roller 7, which is adjustable in the direction of arrow 8.
  • the steel belt wraps around the press drum 2, the deflection roller 9, the tension roller 7 and the pressure roller 3.
  • the pressure rollers 3, 4 and 5 are adjustable in the direction of the axis of the press drum 2 by hydraulic cylinders, not shown.
  • the adjustment of the press drum 2 is carried out by hydraulic cylinders 10 and 11 which are articulated on the additional bearing 12 and on the brackets 13.
  • the adjustment devices arranged on both sides of the press drum 2 are shown, which can alternatively also work with only one centrally arranged hydraulic cylinder 11, which is supported on a console 13 arranged above the drum axis 17.
  • FIG. 3 shows a further embodiment of the adjusting device, which provides a hydraulic cylinder 15 and a link 14, which are supported on brackets 13.
  • the additional bearing 12 is raised or lowered, depending on the arrangement of the adjusting device.
  • a main bearing 16 consisting of a bearing body with an inner ring 18, the rolling bodies 19 and the outer ring 20, is arranged on the pin 17 of the press drum. Further out on the pin 17, the additional bearing 12 is arranged, consisting of the bearing body and single-row cylindrical roller bearing 21.
  • the hydraulic cylinder 11 is articulated on the bearing body of the additional bearing 12, which is supported on the bracket 13 fastened to the stand 1.
  • the additional bearing is moved down so that the assembly tolerance between the bearing body of the main bearing 16 and the stator 1, i.e. the gap 25 and the game 23 between the rolling elements 19 and the outer ring 20 is canceled.
  • a press nip of this thickness must be adjustable between the pressure rollers 3, 4 and 5 and the press drum 2, the thickness of the steel strip 6 of about 1.8 mm also having to be taken into account.
  • the press drum When starting up the system, the press drum is therefore raised by means of the hydraulic cylinders 10 and 11 in order to prevent the endless steel strip from rolling flat, as a result of which the assembly play 24 between the stand parts 25 and 26, which is approximately 1.5 mm, does not affect the web thickness can impact.
  • the scattered fiber layer can be entered into the press by means of a conveyor belt 28 and a fiberboard 22 with a thickness of 1.5 mm can be pressed without causing damage to the machine when starting up.
  • the hydraulic cylinders 10 and 11 also prevent the drum weighing approximately 110 t from damaging the steel strip arranged between the pressure rollers 3, 4 and 5 and the drum shell 2 and also to the pressure rollers themselves.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)

Abstract

Es wird eine Presse zum kontinuierlichen Herstellen von dünnen Span- und Faserplatten (22) aufgezeigt, bestehend aus einer zentralen, in Ständern (1) gelagerten Preßtrommel (2) und mehreren Umlenk-(9) oder Andrückwalzen (3,4,5) sowie einem endlosen, um die Preßtrommel und die Andrückwalzen herumgeführten, unter Zugspannung stehenden Stahlband (6), wobei die mit einem Bindemittel vermischte Span- oder Faserschicht zwischen dem endlosen Stahlband und der beheizten, rotierenden Preßtrommel einem Flächendruck und in den Spalten zwischen der Preßtrommel und den Andrückwalzen einem Liniendruck unterworfen wird. Dadurch, daß die Achse der Preßtrommel gegenüber den Achsen der Andrück- und Umlenkwalzen radial verstellbar ausgebildet ist, wird erreicht, daß die Presse ohne Schäden an der Preßtrommel und dem endlosen Stahlband sowie den Andrückwalzen im Leerzustand angefahren werden kann, auch wenn damit sehr dünne Bahnen hergestellt werden.A press for the continuous production of thin chipboard and fiberboard (22) is shown, consisting of a central press drum (2) mounted in stands (1) and several deflection (9) or pressure rollers (3, 4, 5) and an endless steel belt (6) which is guided around the press drum and the pressure rollers and is under tension, the chip or fiber layer mixed with a binder between the endless steel belt and the heated, rotating press drum having a surface pressure and in the gaps between the press drum and the Pressure rollers is subjected to line pressure. The fact that the axis of the press drum is radially adjustable relative to the axes of the pressing and deflecting rollers ensures that the press can be started in the empty state without damage to the press drum and the endless steel belt and the pressing rollers, even if very thin webs are used getting produced.

Description

Die Erfindung betrifft eine Presse der Gattung, wie beschrie­ben im Oberbegriff des ersten Patentanspruchs.The invention relates to a press of the type as described in the preamble of the first claim.

Eine Presse dieser Gattung ist bekannt aus der DE-PS 27 24 060. Pressen nach diesem Prinzip wurden weiter entwickelt, um einen höheren Ausstoß zu erreichen. Zu diesem Zweck mußte die Preß­strecke verlängert werden bei gleichbleibender Aushärtungszeit der Bindemittel. Eine Verlängerung der Preßstrecke bedeutet bei Rotationspressen, d.h. bei Pressen mit einer rotierenden Trommel, bei denen die Verpressung zwischen dem äußeren Trom­melmantel und einem endlosen, die Trommel teilweise umschlin­genden, unter Zugspannung stehenden Stahlband erfolgt, eine Vergrößerung des Trommeldurchmessers. Die neuesten Pressen dieser Art weisen Trommeln mit einem Durchmesser von 5 m auf, bei einer Ballenlänge von ca. 3 m und einem Trommelgewicht von ca. 110 t.A press of this type is known from DE-PS 27 24 060. Presses based on this principle have been further developed in order to achieve a higher output. For this purpose, the press section had to be extended while the binder hardening time remained the same. An extension of the press section means with rotary presses, i.e. in the case of presses with a rotating drum, in which the compression takes place between the outer drum shell and an endless steel belt, which is partially wrapped around the drum and is under tension, the drum diameter increases. The latest presses of this type have drums with a diameter of 5 m, a bale length of approx. 3 m and a drum weight of approx. 110 t.

Nachteilig bei derart großen Pressen ist, daß bedingt durch erforderliche Montage- und Fertigungstoleranzen an der Presse beim Anfahren und beim Leerfahren Schäden an dem endlosen Stahlband, dem äußeren Trommelmantel und an den Andrückwalzen entstehen, weil sich diese Maschinenteile ohne zu verpressen­des Material metallisch berühren.A disadvantage of such large presses is that due to the required assembly and manufacturing tolerances on the press when starting and when empty, damage to the endless steel belt, the outer drum shell and the pressure rollers occur because these machine parts touch without metal to be pressed.

Auf der anderen Seite wird durch die Vergrößerung des Trommel­durchmessers von 3.000 auf 5.000 mm ermöglicht, auf eine kon­tinuierliche Weise eine Bahn von 3 mm Dicke mit einem Ausstoß (in Abhängigkeit von der Bahndicke) bis zu ca. 40 m/min zu fahren, was im Mittel eine Steigerung von über 200 % bedeutet.On the other hand, by increasing the drum diameter from 3,000 to 5,000 mm, it is possible to run a web of 3 mm thickness with an output (depending on the web thickness) up to approx. 40 m / min in a continuous manner, which in the Medium means an increase of over 200%.

Es ist die Aufgabe der Erfindung, eine kontinuierliche Rota­tionspresse der Gattung, wie beschrieben im Oberbegriff des Patentanspruchs 1, so weiter zu bilden, daß damit ein hoher kontinuierlicher Ausstoß der Presse sichergestellt wird, ohne daß beim Anfahren der Presse oder am Ende eines Preßvorganges, wenn sich kein Material in der Presse befindet, Schäden an dem Preßtrommelmantel, dem endlosen Stahlband oder an den Andrückwalzen auftreten.It is the object of the invention to develop a continuous rotary press of the type as described in the preamble of claim 1, so that a high continuous output of the press is ensured without having to start the press or at the end of a pressing process if there is no material in the press, damage to the press drum jacket, the endless steel belt or the pressure rollers.

Mit der Presse sollen auch dünnste Span- oder Faserplatten­bahnen ab einem Millimeter mit äußerst geringen Dickentole­ranzen, hohen spezifischen Festigkeiten und guten Biege- und Schlagfestigkeiten hergestellt werden können.The press should also be able to produce the thinnest particle or fiberboard webs from one millimeter with extremely low thickness tolerances, high specific strengths and good bending and impact strength.

Die Aufgabe wird durch die in dem kennzeichnenden Teil des ersten Patentanspruchs beanspruchten Merkmale gelöst.The object is achieved by the features claimed in the characterizing part of the first claim.

Die Unteransprüche stellen vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung dar.The subclaims represent advantageous refinements and developments of the invention.

Durch die radiale Verstellbarkeit der Achse der Preßtrommel gegenüber den Achsen der Umlenk- und Andrückwalzen wird eine Fixierung der Achse der sehr schweren Preßtrommel an einem Punkt sichergestellt. Der somit einmal eingestellte Spalt (Ab­stand) zwischen dem Trommelmantel und den Andrück- und Umlenk­walzen wird exakt eingehalten, wodurch eine Beschädigung des Stahldruckbandes und der Walzen- und Trommeloberflächen ver­mieden wird, weil Montagetoleranzen und Spiele der einzelnen Bauteile der Presse wirkungsvoll ausgeschaltet werden.The radial adjustability of the axis of the press drum relative to the axes of the deflection and pressure rollers ensures that the axis of the very heavy press drum is fixed at one point. The gap (distance) thus set between the drum shell and the pressure and deflection rollers is adhered to exactly, which prevents damage to the steel printing tape and the roller and drum surfaces, because assembly tolerances and play of the individual components of the press are effectively eliminated.

Der Vorteil der erfindungsgemäßen Presse wird sehr deutlich bei der Herstellung von Bahnen von beispielsweise einer Dicke von 1 mm, also Bahndicken, die innerhalb des Montagespiels der Bauteile der Presse liegen.The advantage of the press according to the invention is very clear in the production of webs of, for example, a thickness of 1 mm, that is to say web thicknesses which lie within the assembly play of the components of the press.

Durch die definitive radiale Einstellung der großen Trommel­achse läßt sich die große Trommel exakt positionieren, so daß trotz montagebedingter Toleranzen der Bauteile (Ständer und Lager), die bis zu 1,5 mm betragen können, eine exakte Dicken­einstellung der herzustellenden Bahn erreicht wird.The definite radial setting of the large drum axis allows the large drum to be positioned exactly, so that despite the assembly-related tolerances of the components (stands and bearings), which can be up to 1.5 mm, an exact thickness adjustment of the web to be produced is achieved.

Gemäß Anspruch 1 erfolgt die radiale Verstellung der Achse der Preßtrommel gegenüber den Achsen der Umlenk- und Andrück­walzen mittels auf den Achsenden angeordneten Zusatzlagern, an die ein Hydraulikzylinder, der am Ständer abgestützt ist, angreift. Durch diese Maßnahme wird das Spiel in den Ständer­teilen und in den Lagern der Achstrommel entsprechend der Druckbeaufschlagung der beiden jeweils am Achsende angeord­neten Hydraulikzylinder aufgehoben. Die große Preßtrommel ist somit exakt zu den Andrückwalzen positionierbar.According to claim 1, the radial adjustment of the axis of the press drum relative to the axes of the deflection and pressure rollers takes place by means of additional bearings arranged on the axle ends, to which a hydraulic cylinder which is supported on the stand acts. As a result of this measure, the play in the stand parts and in the bearings of the axle drum is eliminated in accordance with the pressurization of the two hydraulic cylinders arranged at the axle end. The large press drum can thus be positioned exactly in relation to the pressure rollers.

Die in Patentanspruch 3 beschriebene Ausführungsform sieht eine Verstelleinrichtung vor mit einem Hydraulikzylinder und einem Hebelarm, so daß die Verstellung der Achse um einen am Ständer angeorndeten Festpunkt erfolgt. Eine derartige Ver­stelleinrichtung ist kostengünstiger in der Herstellung und im Betrieb.The embodiment described in claim 3 provides an adjusting device with a hydraulic cylinder and a lever arm, so that the adjustment of the axis takes place about a fixed point arranged on the stand. Such an adjustment device is less expensive to manufacture and operate.

Wenn sehr große Verstellkräfte gefordert sind, ist die Ver­stelleinrichtung nach Anspruch 4 mit zwei parallel zueinander angeordneten Hydraulikzylindern jeweils unterhalb der Trommel­achse und symmetrisch auf jeder Seite der Achsmitte besonders vorteilhaft, da die Verstellkraft verdoppelt wird.If very large adjusting forces are required, the adjusting device according to claim 4 with two hydraulic cylinders arranged parallel to each other below the drum axis and symmetrically on each side of the center of the axis is particularly advantageous since the adjusting force is doubled.

Ausführungsbeispiele der Erfindung werden in den Zeichnungen gezeigt und nachfolgend erläutert.Embodiments of the invention are shown in the drawings shown and explained below.

Es zeigen:

  • Fig. 1 einen schematisierten Längsschnitt durch eine kontinuierlich arbeitende Presse.
  • Fig. 2 eine Draufsicht auf die Preßtrommel und den Verstelleinrichtungen.
  • Fig. 3 eine Seitenansicht einer weiteren Ausfüh­rungsform der Verstelleinrichtung.
  • Fig. 4 eine Detaildarstellung der Verstellein­richtung.
Show it:
  • Fig. 1 shows a schematic longitudinal section through a continuously operating press.
  • Fig. 2 is a plan view of the press drum and the adjustment devices.
  • Fig. 3 is a side view of another embodiment of the adjusting device.
  • Fig. 4 shows a detailed view of the adjustment device.

Die in Fig. 1 dargestellte Presse besteht aus dem Ständer 1, der die zentrale Preßtrommel 2 aufnimmt.The press shown in Fig. 1 consists of the stand 1, which receives the central press drum 2.

Der Preßtrommel 2 sind die Andrückwalzen 3, 4 und 5 zugeord­net.The pressure rollers 2, the pressure rollers 3, 4 and 5 are assigned.

Ein endloses Stahlband 6 wird von der Spannwalze 7, die in Richtung des Pfeiles 8 verstellbar ist, unter hoher Zugspan­nung gesetzt. Das Stahlband umschlingt die Preßtrommel 2, die Umlenkwalze 9, die Spannwalze 7 und die Andrückwalze 3 .An endless steel belt 6 is placed under high tension by the tension roller 7, which is adjustable in the direction of arrow 8. The steel belt wraps around the press drum 2, the deflection roller 9, the tension roller 7 and the pressure roller 3.

Die Andrückwalzen 3, 4 und 5 sind durch nicht gezeigte Hydrau­likzylinder in Richtung der Achse der Preßtrommel 2 verstell­bar.The pressure rollers 3, 4 and 5 are adjustable in the direction of the axis of the press drum 2 by hydraulic cylinders, not shown.

Die Verstellung der Preßtrommel 2 erfolgt durch Hydraulikzy­linder 10 und 11, die an dem Zusatzlager 12 und an den Konso­len 13 angelenkt sind.The adjustment of the press drum 2 is carried out by hydraulic cylinders 10 and 11 which are articulated on the additional bearing 12 and on the brackets 13.

Bei der in Fig. 2 gezeigten Draufsicht sind die auf beiden Seiten der Preßtrommel 2 angeordneten Verstelleinrichtungen eingezeichnet, die alternativ auch mit nur einem mittig ange­ordneten Hydraulikzylinder 11 arbeiten können, der auf einer oberhalb der Trommelachse 17 angeordneten Konsole 13 abge­stützt ist.In the plan view shown in FIG. 2, the adjustment devices arranged on both sides of the press drum 2 are shown, which can alternatively also work with only one centrally arranged hydraulic cylinder 11, which is supported on a console 13 arranged above the drum axis 17.

In Fig. 3 wird eine weitere Ausführungsform der Verstellein­richtung gezeigt, die einen Hydraulikzylinder 15 und einen Lenker 14 vorsieht, die auf Konsolen 13 abgestützt sind.3 shows a further embodiment of the adjusting device, which provides a hydraulic cylinder 15 and a link 14, which are supported on brackets 13.

Durch eine Betätigung des Hydraulikzylinders 15 wird das Zu­satzlager 12 angehoben bzw. abgesenkt, je nach Anordnung der Verstelleinrichtung.By actuating the hydraulic cylinder 15, the additional bearing 12 is raised or lowered, depending on the arrangement of the adjusting device.

In Fig. 4 wird eine Verstelleinrichtung auf der einen Seite der Preßtrommel 2 im Detail dargestellt.4 shows an adjusting device on one side of the press drum 2 in detail.

Auf dem Zapfen 17 der Preßtrommel ist ein Hauptlager 16, be­stehend aus einem Lagerkörper mit einem Innenring 18, den Wälzkörpern 19 und dem Außenring 20 angeordnet. Weiter außen auf dem Zapfen 17 ist das Zusatzlager 12 angeordnet, beste­hend aus dem Lagerkörper und einreihigen Zylinderrollenlager 21. An dem Lagerkörper des Zusatzlagers 12 ist der Hydraulik­zylinder 11 angelenkt, der sich auf der, an dem Ständer 1 be­festigten Konsole 13 abstützt.A main bearing 16, consisting of a bearing body with an inner ring 18, the rolling bodies 19 and the outer ring 20, is arranged on the pin 17 of the press drum. Further out on the pin 17, the additional bearing 12 is arranged, consisting of the bearing body and single-row cylindrical roller bearing 21. The hydraulic cylinder 11 is articulated on the bearing body of the additional bearing 12, which is supported on the bracket 13 fastened to the stand 1.

Durch eine Betätigung des Hydraulikzylinders 11 wird das Zu­satzlager heruntergerückt, so daß die Montagetoleranz zwischen dem Lagerkörper des Hauptlagers 16 und dem Ständer 1, d.h. der Spalt 25 und das Spiel 23 zwischen den Wälzkörpern 19 und dem Außenring 20 aufgehoben wird.By actuating the hydraulic cylinder 11, the additional bearing is moved down so that the assembly tolerance between the bearing body of the main bearing 16 and the stator 1, i.e. the gap 25 and the game 23 between the rolling elements 19 and the outer ring 20 is canceled.

Bei der in Fig. 1 gezeigten Ausführungsform wird durch Betä­tigen der Hydraulikzylinder 10, 11 das Montagespiel 24 zwi­ schen den einzelnen Ständerteilen 25, 26, und 27 aufgehoben.In the embodiment shown in Fig. 1, the assembly play 24 between two actuating the hydraulic cylinders 10, 11 the individual stand parts 25, 26, and 27 are canceled.

Bei der Verpressung einer Faserplattenbahn einer Dicke von 1,5 mm muß ein Preßspalt dieser Dicke zwischen den Andrück­walzen 3, 4 und 5 und der Preßtrommel 2 einstellbar sein, wo­bei die Dicke des Stahlbandes 6 von etwa 1,8 mm auch noch zu berücksichtigen ist.When pressing a fibreboard sheet with a thickness of 1.5 mm, a press nip of this thickness must be adjustable between the pressure rollers 3, 4 and 5 and the press drum 2, the thickness of the steel strip 6 of about 1.8 mm also having to be taken into account.

Beim Anfahren der Anlage wird daher, um ein Plattwalzen des endlosen Stahlbandes zu vermeiden, die Preßtrommel mittels der Hydraulikzylinder 10 und 11 angehoben, wodurch das Mon­tagespiel 24 zwischen den Ständerteilen 25 und 26, was etwa 1,5 mm beträgt, sich nicht auf die Bahndicke auswirken kann.When starting up the system, the press drum is therefore raised by means of the hydraulic cylinders 10 and 11 in order to prevent the endless steel strip from rolling flat, as a result of which the assembly play 24 between the stand parts 25 and 26, which is approximately 1.5 mm, does not affect the web thickness can impact.

Weiterhin wird das Spiel 23 zwischen dem Außenring 20 und den Wälzkörpern 19 sowie das Montagespiel 25 zwischen dem Lager­körper des Hauptlagers 16 und dem Ständer ausgeschaltet.Furthermore, the game 23 between the outer ring 20 and the rolling elements 19 and the assembly game 25 between the bearing body of the main bearing 16 and the stator are switched off.

Nunmehr kann mittels eines Transportbandes 28 die aufgestreute Faserschicht in die Presse eingegeben und eine Faserplatte 22 mit einer Dicke von 1,5 mm verpreßt werden, ohne daß beim An­fahren Schäden an der Maschine entstehen. Wenn die Presse leergefahren wird, verhindern die Hydraulikzylinder 10 und 11 ebenfalls, daß die etwa 110 t schwere Trommel auf das zwischen den Andrückwalzen 3, 4 und 5 und dem Trommelmantel 2 angeord­nete Stahlband sowie auch auf die Andrückwalzen selbst schäd­lich einwirkt.Now the scattered fiber layer can be entered into the press by means of a conveyor belt 28 and a fiberboard 22 with a thickness of 1.5 mm can be pressed without causing damage to the machine when starting up. When the press is run empty, the hydraulic cylinders 10 and 11 also prevent the drum weighing approximately 110 t from damaging the steel strip arranged between the pressure rollers 3, 4 and 5 and the drum shell 2 and also to the pressure rollers themselves.

Bezugszeichenliste:Reference symbol list:

  • 1 = Ständer1 = stand
  • 2 = Preßtrommel2 = press drum
  • 3 = Andrückwalzen3 = pressure rollers
  • 4 = Andrückwalzen4 = pressure rollers
  • 5 = Andrückwalzen5 = pressure rollers
  • 6 = Stahlband6 = steel band
  • 7 = Spannwalze7 = tension roller
  • 8 = Pfeil8 = arrow
  • 9 = Umlenkwalzen9 = deflection rollers
  • 10 = Hydraulikzylinder10 = hydraulic cylinder
  • 11 = Hydraulikzylinder11 = hydraulic cylinder
  • 12 = Zusatzlager12 = additional bearing
  • 13 = Konsole13 = console
  • 14 = Hebelarm (Lenker)14 = lever arm (handlebar)
  • 15 = Hydraulikzylinder15 = hydraulic cylinder
  • 16 = Hauptlager, Lagerkörper16 = main bearing, bearing body
  • 17 = Trommelachse17 = drum axis
  • 18 = Innenring18 = inner ring
  • 19 = Wälzkörper19 = rolling elements
  • 20 = Außenring20 = outer ring
  • 21 = einreihige Zylinderrollenlager21 = single row cylindrical roller bearings
  • 22 = Spanplatte oder Faserplatte22 = chipboard or fiberboard
  • 23 = Spalt - Lager23 = gap bearing
  • 24 = Spalt - Ständer24 = gap stand
  • 25 = Ständerteil25 = stand part
  • 16 = Ständerteil16 = stand part
  • 27 = Ständerteil27 = stand part
  • 28 = Transportband28 = conveyor belt

Claims (4)

1. Presse zum kontinuierlichen Herstellen von dünnen Span- und Faserplatten, bestehend aus einer zentralen, in Ständern gelagerten Preß­trommel und mehreren Umlenk- und Andrückwalzen sowie einem endlosen, um die Preßtrommel und die Andrückwalzen herumgeführten, unter Zug­spannung stehenden Stahlband, wobei die mit einem Bindemittel vermischte Span- oder Faser­schicht zwischen dem endlosen Stahlband und der beheizten, rotierenden Preßtrommel einem Flächendruck und in den Spalten zwischen der Preßtrommel und den Andrückwalzen einem Linien­druck unterworfen wird,
dadurch gekennzeichnet,
daß eine, auf die Achse (17) der zentralen Preß­trommel (2) wirkende, das Spiel (23, 25, 24) in den Preßtrommellagern (16) und zwischen den Stän­derteilen (25, 26, 27) aufhebende Einrichtung (10, 11, 12, 13, 15) vorgesehen wird.1. Press for the continuous production of thin chipboard and fiberboard, consisting of a central press drum mounted in stands and several deflection and pressure rollers, as well as an endless steel belt which is guided around the press drum and the pressure rollers and is under tension, with a binding agent mixed chip or fiber layer between the endless steel belt and the heated, rotating press drum is subjected to surface pressure and in the gaps between the press drum and the pressure rollers is subjected to line pressure,
characterized,
that one acting on the axis (17) of the central press drum (2), the play (23, 25, 24) in the press drum bearings (16) and between the stand parts (25, 26, 27) canceling device (10, 11, 12, 13, 15) is provided. 2. Presse nach Anspruch 1,
dadurch gekennzeichnet,
daß die das Spiel in den Preßtrommellagern auf­hebende Einrichtung gebildet wird durch auf den Achszapfen der Preßtrommel (2) außerhalb der Preß­trommellager (16) auf beiden Enden angeordnete Zu­satzlager (12), an deren Lagerkörpern Hydraulikzy­linder (10, 11, 15) angreifen, die sich mit ihren den Lagerkörpern der Zusatzlager (12) gegenüber­liegenden Enden auf, an den Ständern (1) befestigte Konsolen (13) abstützen.2. Press according to claim 1,
characterized,
that the device in the press drum bearings canceling device is formed by additional bearings (12) arranged on the journal of the press drum (2) outside the press drum bearings (16) on both ends, on the bearing bodies of which hydraulic cylinders (10, 11, 15) attack, which act Support the brackets (13) attached to the stands (1) with their ends opposite the bearing bodies of the additional bearings (12). 3. Presse nach den Ansprüchen 1 und 2,
dadurch gekennzeichnet,
daß parallel zu dem Hydraulikzylinder (15) ein Hebelarm (Lenker) (14) angeordnet ist, daß der Hydraulikzylinder (15) und der Hebel­arm (14) oberhalb der Preßtrommelachse (17) angeordnet sind,
daß der Hydraulikzylinder (15) und der Hebelarm (14) mit ihrem einen Ende an dem Lagerkörper des Zusatzlagers (12) und mit ihrem anderen Ende an einer, an den Ständern (1) befestigten Konsole (13) angelenkt sind.3. Press according to claims 1 and 2,
characterized,
that a lever arm (handlebar) (14) is arranged parallel to the hydraulic cylinder (15), that the hydraulic cylinder (15) and the lever arm (14) are arranged above the press drum axis (17),
that the hydraulic cylinder (15) and the lever arm (14) are hinged at one end to the bearing body of the additional bearing (12) and at the other end to a bracket (13) fastened to the stands (1). 4. Presse nach den Ansprüchen 1 - 3,
dadurch gekennzeichnet,
daß parallel zueinander zwei Hydraulikzylinder (10, 11) beidseitig unterhalb oder oberhalb der Preßtrommelachse nebeneinander angeordnet sind, daß die Hydraulikzylinder (10, 11) mit ihrem einen Ende an dem Lagerkörper der Zusatzlager (12) und mit ihrem anderen Ende an, an den Ständern (1) be­festigte Konsolen (13) angelenkt sind.4. Press according to claims 1-3,
characterized,
that two hydraulic cylinders (10, 11) are arranged parallel to one another on both sides below or above the press drum axis, that the hydraulic cylinders (10, 11) have one end on the bearing body of the additional bearings (12) and the other end on the stands (1) attached brackets (13) are articulated.
EP88118080A 1988-01-15 1988-10-31 Press for the continuous production of fibre boards or the like Expired - Lifetime EP0324070B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3800994A DE3800994A1 (en) 1988-01-15 1988-01-15 PRESS FOR THE CONTINUOUS PRODUCTION OF CHIPBOARD AND FIBER PANELS OR THE LIKE
DE3800994 1988-01-15

Publications (3)

Publication Number Publication Date
EP0324070A2 true EP0324070A2 (en) 1989-07-19
EP0324070A3 EP0324070A3 (en) 1990-06-13
EP0324070B1 EP0324070B1 (en) 1993-01-27

Family

ID=6345333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118080A Expired - Lifetime EP0324070B1 (en) 1988-01-15 1988-10-31 Press for the continuous production of fibre boards or the like

Country Status (6)

Country Link
US (1) US4932855A (en)
EP (1) EP0324070B1 (en)
JP (1) JP2683083B2 (en)
CN (1) CN1011676B (en)
DE (2) DE3800994A1 (en)
SU (1) SU1605918A3 (en)

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US8770956B2 (en) * 2009-12-30 2014-07-08 The Procter & Gamble Company System for producing high internal phase emulsion foam
CN105599068B (en) * 2015-12-21 2018-07-06 北京林业大学 A kind of roll-in hot press, veneer lengthening system and veneer lengthening method
CN106003355A (en) * 2016-07-14 2016-10-12 重庆市创农木制品包装箱有限公司 Uniform board blank forming system for artificial boards
CN106003359A (en) * 2016-07-14 2016-10-12 重庆市创农木制品包装箱有限公司 Environmental-friendly board blank forming system for artificial boards
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Also Published As

Publication number Publication date
EP0324070A3 (en) 1990-06-13
US4932855A (en) 1990-06-12
SU1605918A3 (en) 1990-11-07
EP0324070B1 (en) 1993-01-27
JP2683083B2 (en) 1997-11-26
DE3877937D1 (en) 1993-03-11
JPH01216803A (en) 1989-08-30
CN1034160A (en) 1989-07-26
DE3800994A1 (en) 1989-08-17
DE3800994C2 (en) 1989-12-28
CN1011676B (en) 1991-02-20

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