EP0283653A2 - Apparatus for opening fibre bales - Google Patents

Apparatus for opening fibre bales Download PDF

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Publication number
EP0283653A2
EP0283653A2 EP88100842A EP88100842A EP0283653A2 EP 0283653 A2 EP0283653 A2 EP 0283653A2 EP 88100842 A EP88100842 A EP 88100842A EP 88100842 A EP88100842 A EP 88100842A EP 0283653 A2 EP0283653 A2 EP 0283653A2
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EP
European Patent Office
Prior art keywords
roller
toothed
removal
rollers
plane
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Granted
Application number
EP88100842A
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German (de)
French (fr)
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EP0283653A3 (en
EP0283653B1 (en
Inventor
Johann Ing.(Grad) Walk
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Rieter Ingolstadt Spinnereimaschinenbau AG
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Schubert und Salzer Maschinenfabrik AG
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Publication of EP0283653A3 publication Critical patent/EP0283653A3/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/04—Breaking or opening fibre bales by means of toothed members

Definitions

  • the invention relates to a device for processing fiber bales with a reciprocating, toothed removal roller and one in front of and behind the removal roller arranged axially parallel to this, pressing on the bale surface tooth roller.
  • the fiber material is removed from the front face of a cuboid layer stack by means of a plucking roller fitted with needles, which is mounted on a horizontally movable carriage (DE-PS 1,193,844).
  • the aim is to prevent larger pieces from being torn out of the layer stack by retaining elements in the form of corrugated rollers which are arranged in the manner of drag rollers in front of and behind the plucking roller and are pressed against the front surface.
  • the retention force of such corrugated rollers is unsatisfactory, especially if the fiber material is removed from the bale from above.
  • the object of the present invention is to provide a device which makes it possible to limit the quantity to be picked up safely and without using roses and to keep it constant over the entire bale height.
  • the object is achieved in a device according to the preamble of claim 1 in that the root circle of the teeth of the toothed rollers affects a plane which lies in or below the plane affected by the tip circle of the removal roller.
  • the plane affected by the root circle lies at least around the tooth height of the toothed rollers below the plane affected by the tip circle of the removal roller.
  • the plane affected by the root circle of the rear tooth roller in the removal direction is lower than the plane affected by the root circle of the front tooth roller.
  • a retention force that is matched to the material is achieved in that the rear toothed roller is mounted so as to be adjustable with respect to the bale surface.
  • the fact that the rear toothed roller is adjustable around the center of the removal roller ensures that the distance of this toothed roller from the removal roller remains unchanged.
  • the tip circle of the rear toothed roller should be arranged particularly closely to the tip circle of the removal roller. The maximum distance between the two tip circles is 5 mm.
  • the removal of material residues lying on the floor is made possible in that the rear toothed roller is pivotally mounted and is pressed onto the bale by spring force.
  • the swiveling range of the toothed roller can expediently be limited by a stop.
  • the toothed rollers are driven at the driving speed of the removal device. This prevents fiber layers from being displaced by the toothed rollers.
  • the teeth of the toothed rollers are directed against the direction of rotation of the rollers. A hold-down or retention force constantly acting on the surface of the bale results from the fact that the set of toothed rollers consists of toothed disks with teeth offset in the axial direction.
  • the removal roller 1 and the tooth rollers 2 and 3 arranged in front of and behind it in the removal direction according to arrow P are in holders 10; 20 and 30 rotatably mounted, which are attached to a carriage 4.
  • the carriage 4 is arranged in a manner not shown in a mobile machine frame and can be moved up and down in vertical guides in order to bring the removal roller 1 and the tooth rollers 2 and 3 into and out of engagement with the surface of the bale to be processed (not shown).
  • the carriage 4 is driven in the vertical direction by chains 41.
  • the rollers can also be mounted in a boom of known type which is arranged on a movable tower and can be moved in the vertical direction.
  • the removal roller 1 is equipped with teeth 11 inclined in the direction of rotation and is driven counterclockwise in the direction of the arrow P 1.
  • the drive takes place by means of a belt 12.
  • the toothed rollers 2 and 3 are driven in the same direction, their drive taking place at the driving speed of the device in the removal direction P.
  • the set of toothed rollers 2 and 3 consists of toothed disks 22 and 32, the teeth 21 and 31 of which are offset from one another in the axial direction and are directed against the direction of rotation of the toothed rollers 2 and 3. In this arrangement, the teeth 21 and 31 of the toothed rollers 2 and 3 are in the removal position relative to the teeth 11 of the removal roller 1 rotating much faster than the toothed rollers 2 and 3.
  • the toothed rollers 2 and 3 are arranged in the immediate vicinity of the removal roller 1.
  • the tip circle S3 of the rear toothed roller 3 should be arranged closely to the tip circle S1 of the removal roller 1. It can be provided that the tip circle S3 of the toothed roller 3 overlaps with the tip circle S1 of the removal roller, or also has a distance from it that does not exceed 5 mm.
  • the toothed rollers 2 and 3 are arranged with respect to the removal roller 1 such that the root circle F2, F3 of the teeth 21 and 31 of the toothed rollers 2 and 3 affects a plane E2 or E3, which is in or below that of the tip circle S1 of the teeth 11 of the removal roller tangent plane E1.
  • the levels E2 and E3 are at least about the height of a tooth 21 or 31 of the toothed rollers below the level E1. Since the toothed roller 3 arranged in the removal direction behind the removal roller 1 is particularly important for good retention and retention of the fiber material when it is removed from the bale surface by the removal roller 1, it is provided that this roller engages deeper into the bale surface than the toothed roller 2.
  • the level E3, which is affected by the root circle F3 of the rear toothed roller 3, is consequently lower than the plane E2, which is affected by the root circle F2 of the front toothed roller 2.
  • the toothed roller 3 is in relation to the top of the bale surface in a longitudinal slot 5 adjustable.
  • the toothed roller can thus be lowered in the case of softly pressed bales, as a result of which it presses the fiber material downwards and thus prevents larger pieces from being torn up.
  • the longitudinal slot 5 preferably runs along a circular arc formed around the center of the removal roller 1, so that when the toothed roller 3 is adjusted, its predetermined distance from the removal roller 1 is maintained.
  • the rear toothed roller 3 is attached at both ends to arms 6 which are pivotally mounted in the machine frame.
  • the arms 6 are mounted on the axis of the removal roller 1 and pivotable about them, so that here too the toothed roller 3 maintains its predetermined distance from the tip circle S 1 of the removal roller 1 during a pivoting movement.
  • the toothed roller 3 is pressed against and into the surface of the bale by the force of a spring acting on the free end of the arms 6, in the present case a rubber spring 61.
  • the holder 62 attached to the slide 4 for the rubber spring 61 also serves as a stop for an adjusting screw 7 attached to the arms 6. This stop limits the swiveling range of the arms 6 downwards towards the bales. By turning the nut 71 of the adjusting screw 7, the swivel range can be set to a desired dimension.
  • the arrangement of the toothed roller 3 according to FIG. 2 has the advantage that the plane of engagement of the toothed roller in the bale changes automatically according to the strength of the bale pressure. For softly pressed bales or fiber layers ten there is a stronger compression than with hard pressed material, so that the material is held down in any case and prevents tearing up of larger pieces.
  • the pivotable arrangement of the toothed roller 3 also enables the last material layer lying on the floor to be easily removed, since this is also held down securely by the toothed roller 3 and cannot slide away.

Abstract

Bei einer hin- und herfahrbaren Vorrichtung zum Abarbeiten von Faserballen ist vor und hinter der mit Zähnen besetzten Abtragwalze (1) achsparallel zu dieser je eine Zahnwalze (2, 3) angeordnet. Der Fußkreis (F2, F3) der Zähne (21, 31) dieser auf die Ballenoberfläche drückenden Zahnwalzen (2, 3) tangiert eine Ebene (E2, E3), die in oder unterhalb der von Spitzenkreis (S1) der Abtragwalze (1) tangierten Ebene (E1) liegt. Die Vorrichtung ermöglicht es, die Abnahmemenge ohne Verwendung von Rosten sicher zu begrenzen und über die gesamte Ballenhöhe konstant zu halten.In the case of a device for processing fiber bales that can be moved back and forth, a toothed roller (2, 3) is arranged in front of and behind the removal roller (1) with teeth parallel to it. The root circle (F2, F3) of the teeth (21, 31) of these toothed rollers (2, 3) pressing on the bale surface affects a plane (E2, E3) which affected in or below that of the tip circle (S1) of the removal roller (1) Level (E1) lies. The device makes it possible to safely limit the quantity to be consumed without using rust and to keep it constant over the entire bale height.

Description

Die Erfindung betrifft eine Vorrichtung zum Abarbeiten von Faserballen mit einer hin- und herfahrbaren, mit Zähnen besetzten Abtragwalze und je einer vor und hinter der Abtragwalze achsparallel zu dieser angeordneten, auf die Ballenoberfläche drückenden Zahnwalze.The invention relates to a device for processing fiber bales with a reciprocating, toothed removal roller and one in front of and behind the removal roller arranged axially parallel to this, pressing on the bale surface tooth roller.

Bei einer bekannten Vorrichtung zum Abarbeiten von Faser­ballen wird das Fasermaterial mittels einer mit Nadeln besetzten Zupfwalze, die auf einem horizontal hin- und herbewegbaren Schlitten gelagert ist, von der vorderen Frontfläche eines quaderförmigen Schichtstapels abgetra­gen (DE-PS 1.193.844). Dabei soll ein Ausreißen größerer Stücke aus dem Schichtstapel durch Rückhalteorgane in Form von Riffelwalzen verhindert werden, die nach Art von Schleppwalzen vor und hinter der Zupfwalze angeordnet sind und gegen die Frontfläche gedrückt werden. Die Rück­haltekraft derartiger Riffelwalzen ist jedoch unbefrie­digend, insbesondere wenn das Fasermaterial von oben von den Ballen abgetragen wird.In a known device for processing fiber bales, the fiber material is removed from the front face of a cuboid layer stack by means of a plucking roller fitted with needles, which is mounted on a horizontally movable carriage (DE-PS 1,193,844). The aim is to prevent larger pieces from being torn out of the layer stack by retaining elements in the form of corrugated rollers which are arranged in the manner of drag rollers in front of and behind the plucking roller and are pressed against the front surface. However, the retention force of such corrugated rollers is unsatisfactory, especially if the fiber material is removed from the bale from above.

Es wurde daher schon vorgeschlagen, als Rückhaltevorrich­tung für das Fasermaterial einen schwenkbar gelagerten und auf die Ballenoberfläche drückbaren Rost vorzusehen, durch den die Nadeln oder Zähne der Zupfwalze hindurch­reichen (DE-OS 2.847.461). Nachteilig ist dabei, daß sich beim Abarbeiten auf der Ballenoberfläche Furchen und Stege bilden, für deren Beseitung aufwendige Maß­nahmen erforderlich sind. Bei dieser Vorrichtung ist ferner jeweils vor und hinter der Zupf- oder Abtragwalze eine zu ihr achsparallele Druckwalze angeordnet, die mit gezahnten Ringen bestückt ist und angetrieben wird. Diese auf die Oberfläche der Ballen drückenden Walzen sollen ein Umkippen der Ballen beim Abarbeiten verhin­dern, da dies durch den Rost allein meist nicht gelingt. Eine Verbesserung der Faserrückhaltung ist mit diesen Druckwalzen nicht beabsichtigt.It has therefore already been proposed to provide, as a retention device for the fiber material, a pivotally mounted grate which can be pressed onto the surface of the bale and through which the needles or teeth of the plucking roller extend (DE-OS 2,847,461). The disadvantage here is that furrows and ridges form on the surface of the bale during processing, and elaborate measures are required to remove them. In this device, a pressure roller is also arranged in front of and behind the plucking or removal roller and is equipped with toothed rings and driven. These rollers, which press on the surface of the bale, are intended to prevent the bale from tipping over during processing, since this is usually not possible due to the rust alone. An improvement in fiber retention is not intended with these pressure rollers.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrich­tung zu schaffen, die es ermöglicht, die Abnahmemenge sicher und ohne Verwendung von Rosen zu begrenzen und über die gesamte Ballenhöhe konstant zu halten.The object of the present invention is to provide a device which makes it possible to limit the quantity to be picked up safely and without using roses and to keep it constant over the entire bale height.

Die Aufgabe wird bei einer Vorrichtung gemäß dem Ober­begriff des Anspruches 1 erfindungsgemäß dadurch gelöst, daß der Fußkreis der Zähne der Zahnwalzen eine Ebene tangiert, die in oder unterhalb der vom Spitzenkreis der Abtragwalze tangierten Ebene liegt.The object is achieved in a device according to the preamble of claim 1 in that the root circle of the teeth of the toothed rollers affects a plane which lies in or below the plane affected by the tip circle of the removal roller.

In Weiterbildung der Erfindung wird vorgesehen, daß, die vom Fußkreis tangierte Ebene wenigstens um die Zahn­höhe der Zahnwalzen unterhalb der vom Spitzenkreis der Abtragwalze tangierten Ebene liegt.In a further development of the invention it is provided that the plane affected by the root circle lies at least around the tooth height of the toothed rollers below the plane affected by the tip circle of the removal roller.

Um im Austrittsbereich der Abtragwalze aus dem Ballen eine gute Rückhaltung auch auf weichgepreßtes Faserma­terial zu bewirken, liegt die vom Fußkreis der in Abtrag­richtung hinteren Zahnwalze tangierte Ebene tiefer als die vom Fußkreis der vorderen Zahnwalze tangierte Ebene. Eine auf das Material abgestimmte Rückhaltekraft wird dadurch erreicht, daß die hintere Zahnwalze in Bezug auf die Ballenoberfläche verstellbar gelagert ist. Da­durch, daß dabei die hintere Zahnwalze um das Zentrum der Abtragwalze verstellbar ist, wird sichergestellt, daß der Abstand dieser Zahnwalze zur Abtragwalze unverän­dert bleibt. Der Spitzenkreis der hinteren Zahnwalze soll besonders eng zum Spitzenkreis der Abtragwalze ange­ordnet sein. Der Abstand der beiden Spitzenkreise von­einander beträgt maximal 5 mm. Das Abtragen von auf dem Boden liegenden Materialresten wird dadurch ermöglicht, daß die hintere Zahnwalze schwenkbar gelagert ist und durch Federkraft auf den Ballen gedrückt wird. Der Schwenkbereich der Zahnwalze ist zweckmäßig durch einen Anschlag begrenzbar.In order to ensure good retention even on soft-pressed fiber material in the exit area of the removal roller from the bale, the plane affected by the root circle of the rear tooth roller in the removal direction is lower than the plane affected by the root circle of the front tooth roller. A retention force that is matched to the material is achieved in that the rear toothed roller is mounted so as to be adjustable with respect to the bale surface. The fact that the rear toothed roller is adjustable around the center of the removal roller ensures that the distance of this toothed roller from the removal roller remains unchanged. The tip circle of the rear toothed roller should be arranged particularly closely to the tip circle of the removal roller. The maximum distance between the two tip circles is 5 mm. The removal of material residues lying on the floor is made possible in that the rear toothed roller is pivotally mounted and is pressed onto the bale by spring force. The swiveling range of the toothed roller can expediently be limited by a stop.

In weitere Ausbildung der Vorrichtung wird vorgesehen, daß die Zahnwalzen mit der Fahrgeschwindigkeit der Abtrag­vorrichtung angetrieben sind. Dadurch wird vermieden, daß Faserschichten durch die Zahnwalzen verschoben wer­den. Um ein Mitreißen von Fasermaterial durch die Zahn­walzen zu verhindern, sind die Zähne der Zahnwalzen ent­gegen der Drehrichtung der Walzen gerichtet. Eine stetig auf die Ballenoberfläche wirkende Niederhalte- oder Rück­haltekraft ergibt sich dadurch, daß die Garnitur der Zahnwalzen aus Zahnscheiben mit in Achsrichtung versetzt zueinander angeordneten Zähnen besteht.In a further embodiment of the device it is provided that the toothed rollers are driven at the driving speed of the removal device. This prevents fiber layers from being displaced by the toothed rollers. In order to prevent fiber material from being entrained by the toothed rollers, the teeth of the toothed rollers are directed against the direction of rotation of the rollers. A hold-down or retention force constantly acting on the surface of the bale results from the fact that the set of toothed rollers consists of toothed disks with teeth offset in the axial direction.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnungen beschrieben. Es zeigt:

  • Figur 1 eine Abtragwalze und zwei Zahnwalzen in Seitenan­sicht; und
  • Figur 2 eine schwenkbar gelagerte und durch Federkraft beaufschlagte Zahnwalze.
An embodiment of the invention is described below with reference to the drawings. It shows:
  • 1 shows a removal roller and two tooth rollers in side view; and
  • Figure 2 shows a pivoted toothed roller and loaded by spring force.

Die Abtragwalze 1 und die in Abtragrichtung gemäß Pfeil P vor und hinter ihr angeordneten Zahnwalzen 2 und 3 sind in Halterungen 10; 20 und 30 drehbar gelagert, die an einem Schlitten 4 befestigt sind. Der Schlitten 4 ist in nicht dargestellter Weise in einem fahrbaren Maschinen­gestell angeordnet und in vertikal Führungen auf und ab bewegbar, um die Abtragwalze 1 und die Zahnwalzen 2 und 3 in und außer Eingriff mit der Oberfläche der abzuarbeiten den Ballen (nicht gezeigt) zu bringen. Der Antrieb des Schlittens 4 in vertikaler Richtung erfolgt durch Ketten 41. Die Walzen können jedoch auch in einem Ausleger be­kannter Art gelagert sein, der an einem verfahrbaren Turm angeordnet und in Höhenrichtung bewegbar ist.The removal roller 1 and the tooth rollers 2 and 3 arranged in front of and behind it in the removal direction according to arrow P are in holders 10; 20 and 30 rotatably mounted, which are attached to a carriage 4. The carriage 4 is arranged in a manner not shown in a mobile machine frame and can be moved up and down in vertical guides in order to bring the removal roller 1 and the tooth rollers 2 and 3 into and out of engagement with the surface of the bale to be processed (not shown). The carriage 4 is driven in the vertical direction by chains 41. However, the rollers can also be mounted in a boom of known type which is arranged on a movable tower and can be moved in the vertical direction.

Die Abtragwalze 1 ist mit in Drehrichtung geneigten Zäh­nen 11 besetzt und wird entgegen dem Uhrzeigersinn in Richtung des Pfeiles P₁ angetrieben. Der Antrieb erfolgt mittels eines Riemens 12. In der gleichen Richtung werden die Zahnwalzen 2 und 3 angetrieben, wobei ihr Antrieb mit der Fahrgeschwindigkeit der Vorrichtung in Abtrag­richtung P erfolgt. Die Garnitur der Zahnwalzen 2 und 3 besteht aus Zahnscheiben 22 und 32, deren Zähne 21 und 31 in Achsrichtung versetzt zueinander angeordnet und entgegen der Drehrichtung der Zahnwalzen 2 und 3 gerichtet sind. Die Zähne 21 und 31 der Zahnwalzen 2 und 3 stehen bei dieser Anordnung in Abnahmestellung zu den Zähnen 11 der wesentlich schneller als die Zahn­walzen 2 und 3 rotierenden Abtragwalze 1.The removal roller 1 is equipped with teeth 11 inclined in the direction of rotation and is driven counterclockwise in the direction of the arrow P 1. The drive takes place by means of a belt 12. The toothed rollers 2 and 3 are driven in the same direction, their drive taking place at the driving speed of the device in the removal direction P. The set of toothed rollers 2 and 3 consists of toothed disks 22 and 32, the teeth 21 and 31 of which are offset from one another in the axial direction and are directed against the direction of rotation of the toothed rollers 2 and 3. In this arrangement, the teeth 21 and 31 of the toothed rollers 2 and 3 are in the removal position relative to the teeth 11 of the removal roller 1 rotating much faster than the toothed rollers 2 and 3.

Die Zahnwalzen 2 und 3 sind in unmittelbarer Nähe der Abtragwalze 1 angeordnet. Insbesondere der Spitzenkreis S₃ der hinteren Zahnwalze 3 soll eng zum Spitzenkreis S₁ der Abtragwalze 1 angeordnet sein. Dabei kann vorgesehen werden, daß sich der Spitzenkreis S₃ der Zahnwalze 3 mit dem Spitzenkreis S₁ der Abtragwalze überschneidet, oder auch einen Abstand zu diesem hat, der 5 mm nicht über­schreitet. In vertikaler Richtung sind die Zahnwalzen 2, und 3 in Bezug auf die Abtragwalze 1 derart angeordnet, daß der Fußkreis F₂, F₃ der Zähne 21 und 31 der Zahnwal­zen 2 und 3 eine Ebene E₂ bzw. E₃ tangiert, die in oder unterhalb der vom Spitzenkreis S₁ der Zähne 11 der Abtrag­walze tangierten Ebene E₁ liegt. In der bevorzugten Aus­führung liegen die Ebenen E₂ und E₃ wenigstens um die Höhe eines Zahnes 21 bzw. 31 der Zahnwalzen unterhalb der Ebene E₁. Da die in Abtragrichtung hinter der Abtragwalze 1 angeordnete Zahnwalze 3 in besonderem Maß für eine gute Rück- und Niederhaltung des Fasermaterials bei dessen Abnahme von der Ballenoberfläche durch die Abtragwalze 1 bestimmend ist, wird vorgesehen, daß diese Walze tiefer in die Ballenoberfläche eingreift als die Zahnwalze 2. Die Ebene E₃, die vom Fußkreis F₃ der hinteren Zahnwalze 3 tangiert wird, liegt infolgedessen tiefer als die Ebene E₂, die vom Fußkreis F₂ der vorderen Zahnwalze 2 tangiert wird.The toothed rollers 2 and 3 are arranged in the immediate vicinity of the removal roller 1. In particular, the tip circle S₃ of the rear toothed roller 3 should be arranged closely to the tip circle S₁ of the removal roller 1. It can be provided that the tip circle S₃ of the toothed roller 3 overlaps with the tip circle S₁ of the removal roller, or also has a distance from it that does not exceed 5 mm. In the vertical direction, the toothed rollers 2 and 3 are arranged with respect to the removal roller 1 such that the root circle F₂, F₃ of the teeth 21 and 31 of the toothed rollers 2 and 3 affects a plane E₂ or E₃, which is in or below that of the tip circle S₁ of the teeth 11 of the removal roller tangent plane E₁. In the preferred embodiment, the levels E₂ and E₃ are at least about the height of a tooth 21 or 31 of the toothed rollers below the level E₁. Since the toothed roller 3 arranged in the removal direction behind the removal roller 1 is particularly important for good retention and retention of the fiber material when it is removed from the bale surface by the removal roller 1, it is provided that this roller engages deeper into the bale surface than the toothed roller 2. The level E₃, which is affected by the root circle F₃ of the rear toothed roller 3, is consequently lower than the plane E₂, which is affected by the root circle F₂ of the front toothed roller 2.

Um die Eingriffstiefe der hinteren Zahnwalze 3 in die Ballenoberfläche je nach Ballenpressung verändern zu können, ist die Zahnwalze 3 in Bezug auf die Ballenober­ fläche in einem Längsschlitz 5 verstellbar gelagert. Die Zahnwalze kann somit bei weich gepreßten Ballen tiefer gestellt werden, wodurch sie das Fasermaterial stärker nach unten preßt und so ein Hochreißen größerer Stücke verhindert. Der Längsschlitz 5 verläuft vorzugsweise entlang eines um das Zentrum der Abtragwalze 1 geschla­genen Kreisbogens, so daß bei einer Verstellung der Zahn­walze 3 ihr vorgegebener Abstand zur Abtragwalze 1 erhal­ten bleibt.In order to be able to change the depth of engagement of the rear toothed roller 3 in the bale surface depending on the bale pressure, the toothed roller 3 is in relation to the top of the bale surface in a longitudinal slot 5 adjustable. The toothed roller can thus be lowered in the case of softly pressed bales, as a result of which it presses the fiber material downwards and thus prevents larger pieces from being torn up. The longitudinal slot 5 preferably runs along a circular arc formed around the center of the removal roller 1, so that when the toothed roller 3 is adjusted, its predetermined distance from the removal roller 1 is maintained.

In Figur 2 ist die hintere Zahnwalze 3 an ihren beiden Enden an Armen 6 befestigt, die im Maschinengestell schwenkbar gelagert sind. Vorzugsweise sind die Arme 6 auf der Achse der Abtragwalze 1 gelagert und um diese schwenkbar, so daß auch hier die Zahnwalze 3 bei einer Schwenkbewegung ihren vorgegebenen Abstand zum Spitzen­kreis S₁ der Abtragwalze 1 beibehält.In Figure 2, the rear toothed roller 3 is attached at both ends to arms 6 which are pivotally mounted in the machine frame. Preferably, the arms 6 are mounted on the axis of the removal roller 1 and pivotable about them, so that here too the toothed roller 3 maintains its predetermined distance from the tip circle S 1 of the removal roller 1 during a pivoting movement.

Die Zahnwalze 3 wird durch die am freien Ende der Arme 6 angreifende Kraft einer Feder, im vorliegenden Fall einer Gummifeder 61 gegen und in die Ballenoberfläche gedrückt. Der am Schlitten 4 befestigte Halter 62 für die Gummi­feder 61 dient gleichzeitig als Anschlag für eine an den Armen 6 befestigte Stellschraube 7. Durch diese Anschlag wird der Schwenkbereich der Arme 6 nach unten zu den Ballen hin begrenzt. Durch Verdrehen der Mutter 71 der Stellschraube 7 läßt sich der Schwenkbereich auf ein gewünschtes Maß einstellen.The toothed roller 3 is pressed against and into the surface of the bale by the force of a spring acting on the free end of the arms 6, in the present case a rubber spring 61. The holder 62 attached to the slide 4 for the rubber spring 61 also serves as a stop for an adjusting screw 7 attached to the arms 6. This stop limits the swiveling range of the arms 6 downwards towards the bales. By turning the nut 71 of the adjusting screw 7, the swivel range can be set to a desired dimension.

Die Anordnung der Zahnwalze 3 gemäß Figur 2 hat den Vor­teil, daß sich die Eingriffsebene der Zahnwalze in den Ballen der Stärke der Ballenpressung entsprechend automa­tisch ändert. Bei weich gepreßten Ballen oder Faserschich­ ten erfolgt eine stärkere Zusammenpressung als bei hart gepreßtem Material, so daß in jedem Fall das Material sicher niedergehalten und ein Hochreißen von größeren Stücken verhindert wird. Außerdem ermöglicht die schwenk­bare Anordnung der Zahnwalze 3 aber auch die problemlose Abnahme selbst der letzten auf den Boden liegenden Ma­terialschicht, da diese ebenfalls sicher durch die Zahn­walze 3 niedergehalten wird und nicht wegrutschen kann.The arrangement of the toothed roller 3 according to FIG. 2 has the advantage that the plane of engagement of the toothed roller in the bale changes automatically according to the strength of the bale pressure. For softly pressed bales or fiber layers ten there is a stronger compression than with hard pressed material, so that the material is held down in any case and prevents tearing up of larger pieces. In addition, the pivotable arrangement of the toothed roller 3 also enables the last material layer lying on the floor to be easily removed, since this is also held down securely by the toothed roller 3 and cannot slide away.

Claims (12)

1. Vorrichtung zum Abarbeiten von Faserballen mit einer hin- und herfahrbaren, mit Zähnen besetzten Abtrag­walze und je einer vor und hinter der Abtragwalze achsparallel zu dieser angeordneten, auf die Ballen­oberfläche drückenden Zahnwalze, dadurch gekennzeichnet, daß der Fußkreis (F₂, F₃) der Zähne (21, 31) der Zahnwalzen (2, 3) eine Ebene (E₂, E₃) tangiert, die in oder unterhalb der vom Spitzenkreis (S₁) der Abtragwalze (1) tangierten Ebene (E₁) liegt.1. Device for processing fiber bales with a reciprocating, toothed removal roller and one in front and behind the removal roller axially parallel to this, pressing on the bale surface tooth roller, characterized in that the root circle (F₂, F₃) of the teeth (21, 31) of the toothed rollers (2, 3) tangent to a plane (E₂, E₃) which lies in or below the plane (E₁) tangent to the tip circle (S₁) of the removal roller (1). 2. Vorrichtung nach Anspruch 1, dadurch ge­kennzeichnet, daß die vom Fußkreis (F₂, F₃) tangierte Ebene (E₂, E₃) wenigstens um die Zahn­höhe der Zahnwalzen (2, 3) unterhalb der vom Spitzen­kreis (S₁) der Abtragwalze (1) tangierten Ebene (E₁) liegt.2. Apparatus according to claim 1, characterized in that the plane tangent from the root circle (F₂, F₃) (E₂, E₃) at least by the tooth height of the toothed rollers (2, 3) below that from the tip circle (S₁) of the removal roller (1) Level (E₁) lies. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, das die vom Fußkreis (F₃) der in Abtragrichtung (P) hinteren Zahnwalze (3) tangierte Ebene (E₃) tiefer liegt als die vom Fuß­kreis (F₂) der vorderen Zahnwalze (2) tangierte Ebene (E₂).3. Apparatus according to claim 1 or 2, characterized in that the tangent from the root circle (F₃) of the rear tooth roller (3) in the removal direction (P) plane (E₃) is lower than that of the root circle (F₂) of the front tooth roller (2) affected plane (E₂). 4. Vorrichtung nach einem der Ansprüche 1 bis 3, da­durch gekennzeichnet, das die hintere Zahnwalze (3) in Bezug auf die Ballenober­fläche verstellbar gelagert ist.4. Device according to one of claims 1 to 3, characterized in that the rear toothed roller (3) is adjustably mounted with respect to the bale surface. 5. Vorrichtung nach Anspruch 4, dadurch ge­kennzeichnet, daß die hintere Zahnwalze (3) um das Zentrum der Abtragwalze (1) verstellbar ist.5. The device according to claim 4, characterized in that the rear toothed roller (3) around the center of the removal roller (1) is adjustable. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, da­durch gekennzeichnet, daß der Spitzenkreis (S₃) der hinteren Zahnwalze (3) eng zum Spitzenkreis (S₁) der Abtragwalze (1) angeordnet ist.6. Device according to one of claims 1 to 5, characterized in that the tip circle (S₃) of the rear toothed roller (3) is arranged closely to the tip circle (S₁) of the removal roller (1). 7. Vorrichtung nach Anspruch 6, dadurch ge­kennzeichnet, daß der Spitzenkreis (S₃) der hinteren Zahnwalzen (3) einen Abstand von maximal 5 mm zum Spitzenkreis (S₁) der Abtragwalze (1) hat.7. The device according to claim 6, characterized in that the tip circle (S₃) of the rear toothed rollers (3) has a maximum distance of 5 mm to the tip circle (S₁) of the removal roller (1). 8. Vorrichtung nach einem der Ansprüche 1 bis 7, da­durch gekennzeichnet, daß die hintere Zahnwalze (3) schwenkbar gelagert ist und durch Federkraft auf den Ballen gedrückt wird.8. Device according to one of claims 1 to 7, characterized in that the rear toothed roller (3) is pivotally mounted and is pressed by spring force on the bale. 9. Vorrichtung nach Anspruch 8, dadurch ge­kennzeichnet, daß der Schwenkbereich der Zahnwalze (3) durch einen Anschlag (62) begrenz­bar ist.9. The device according to claim 8, characterized in that the pivoting range of the toothed roller (3) by a stop (62) can be limited. 10. Vorrichtung nach einem der Ansprüche 1 bis 9, da­durch gekennzeichnet, daß die Zahnwalzen (2, 3) mit der Fahrgeschwindigkeit der Abtragvorrichtung angetrieben sind.10. Device according to one of claims 1 to 9, characterized in that the toothed rollers (2, 3) are driven at the driving speed of the removal device. 11. Vorrichtung nach einem der Ansprüche 1 bis 10, da­durch gekennzeichnet, daß die Zähne (21, 31) der Zahnwalzen (2, 3) entgegen der Drehrichtung der Walzen (2, 3) gerichtet sind.11. Device according to one of claims 1 to 10, characterized in that the teeth (21, 31) of the toothed rollers (2, 3) are directed against the direction of rotation of the rollers (2, 3). 12. Vorrichtung nach einem der Ansprüche 1 bis 11, da­durch gekennzeichnet, daß die Garnitur der Zahnwalzen (2, 3) aus Zahnscheiben (22, 32) mit in Achsrichtung versetzt zueinander angeordneten Zähnen (21, 31) besteht.12. The device according to one of claims 1 to 11, characterized in that the set of toothed rollers (2, 3) consists of toothed disks (22, 32) with teeth (21, 31) arranged offset in the axial direction.
EP88100842A 1987-02-26 1988-01-21 Apparatus for opening fibre bales Expired - Lifetime EP0283653B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3706268A DE3706268C3 (en) 1987-02-26 1987-02-26 Device for processing bales of fiber
DE3706268 1987-02-26

Publications (3)

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EP0283653A2 true EP0283653A2 (en) 1988-09-28
EP0283653A3 EP0283653A3 (en) 1990-04-04
EP0283653B1 EP0283653B1 (en) 1993-09-01

Family

ID=6321868

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Application Number Title Priority Date Filing Date
EP88100842A Expired - Lifetime EP0283653B1 (en) 1987-02-26 1988-01-21 Apparatus for opening fibre bales

Country Status (5)

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US (1) US4827572A (en)
EP (1) EP0283653B1 (en)
JP (1) JPS63295718A (en)
CN (1) CN1011711B (en)
DE (2) DE3706268C3 (en)

Cited By (3)

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EP0326913A1 (en) * 1988-02-04 1989-08-09 Maschinenfabrik Rieter Ag Method and apparatus for removing fibre flocks from fibre balls
EP0394856A1 (en) * 1989-04-26 1990-10-31 Maschinenfabrik Rieter Ag Method and apparatus for removal of fibre flocks from bales of fibre
FR2651250A1 (en) * 1989-08-31 1991-03-01 Truetzschler & Co OPENER DEVICE FOR OPENING COMPRESSED FIBER BALLS, SUCH AS COTTON, FIBRAN BALLS OR THE LIKE.

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DE3936810A1 (en) * 1989-11-04 1991-05-08 Truetzschler & Co METHOD AND DEVICE FOR REMOVING FIBER FLAKES FROM TEXTILE FIBER BALLS, E.g. FROM COTTON, CHEMICAL FIBERS AND THE LIKE.
JPH04119129A (en) * 1989-12-19 1992-04-20 Truetzschler Gmbh & Co Kg Apparatus for opening fiber straw-bag of for example cotton or synthetic fiber especially firmly compressed fiber straw-bag
US5170534A (en) * 1989-12-19 1992-12-15 Trutzchler Gmbh & Co. Kg Apparatus for cleaning the surface of textile fiber bales
DE102005059151B4 (en) * 2005-12-10 2017-10-19 Hubert Hergeth Angular cutter
CH706351A1 (en) * 2012-04-13 2013-10-15 Rieter Ag Maschf Off roller.

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EP0394856A1 (en) * 1989-04-26 1990-10-31 Maschinenfabrik Rieter Ag Method and apparatus for removal of fibre flocks from bales of fibre
FR2651250A1 (en) * 1989-08-31 1991-03-01 Truetzschler & Co OPENER DEVICE FOR OPENING COMPRESSED FIBER BALLS, SUCH AS COTTON, FIBRAN BALLS OR THE LIKE.
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Also Published As

Publication number Publication date
CN88101079A (en) 1988-09-07
DE3706268C2 (en) 1991-01-03
CN1011711B (en) 1991-02-20
DE3706268C3 (en) 1995-02-09
EP0283653A3 (en) 1990-04-04
DE3883566D1 (en) 1993-10-07
US4827572A (en) 1989-05-09
JPS63295718A (en) 1988-12-02
DE3706268A1 (en) 1988-09-08
EP0283653B1 (en) 1993-09-01

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