EP0326913B1 - Method and apparatus for removing fibre flocks from fibre balls - Google Patents

Method and apparatus for removing fibre flocks from fibre balls Download PDF

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Publication number
EP0326913B1
EP0326913B1 EP89101216A EP89101216A EP0326913B1 EP 0326913 B1 EP0326913 B1 EP 0326913B1 EP 89101216 A EP89101216 A EP 89101216A EP 89101216 A EP89101216 A EP 89101216A EP 0326913 B1 EP0326913 B1 EP 0326913B1
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EP
European Patent Office
Prior art keywords
take
rollers
seen
roller
penetration depth
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EP89101216A
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German (de)
French (fr)
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EP0326913A1 (en
Inventor
Daniel Hanselmann
Walter Schlepfer
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00Breaking or opening fibre bales
    • D01G7/06Details of apparatus or machines
    • D01G7/10Arrangements for discharging fibres

Definitions

  • the invention relates to a method and an apparatus for removing fiber flakes from fiber bales arranged in series, e.g. Cotton or synthetic fiber bales and the like, by means of a removal member traveling over the fiber bales with at least two rotating removal rollers according to the preamble of the 1st and 2nd process and 7th, 10th and 17th device claims.
  • a removal member traveling over the fiber bales with at least two rotating removal rollers according to the preamble of the 1st and 2nd process and 7th, 10th and 17th device claims.
  • the removal member penetrates the fiber bales with a predetermined penetration depth each time it is passed over, in order to give the removal rollers the opportunity to detach fiber flakes from the surface, which then transfer them to a pneumatic conveyor shaft will.
  • the axes of the removal rollers are arranged horizontally.
  • they are designed according to DE-A-33 34 069 as toothed disks, which - as seen in the direction of the axis of rotation of the removal rollers - are lined up with gaps between the toothed disks which lie on the surface of the fiber bales when the fiber flakes are removed.
  • the removal rollers rotate in opposite directions, the front removal roller viewed in the direction of travel rotating in the so-called synchronism with the direction of travel in order to detach the fiber flakes from the surface in this synchronization.
  • the rear roller seen in the direction of travel rotates in the opposite direction and loosens fiber flakes from the same surface in the counter-milling system.
  • Removal elements with an opening roller are also known, the direction of rotation of which is reversible, so that the opening roller can be rotated in the direction of synchronization.
  • An improvement in the abovementioned removal performance consists in the possibility of having both removal rollers rotate in the same direction in each direction of travel, which, however, means that the rollers are given an opposite direction of rotation for the return trip or that the removal member is lifted from the surface, so that fiber flakes only can be triggered in one direction.
  • the increase in output is somewhat problematic even with a rapid return trip, since, depending on the length of the bale rows, a time interval must be accepted during which no fiber flakes are released.
  • Another means of increasing the performance is known to be to increase the length of the roll accordingly, with removal elements which have a single roll or two rolls.
  • both rollers can utilize the full removal depth, so that the removal capacity is effectively doubled in a two-roller arrangement, or, on the other hand, smaller flakes are removed with an removal capacity equivalent to a roller can be, since it is known that the flake size increases with increasing depth of penetration per crossing, which is not always desirable.
  • a double or multiple roller arrangement can be used to achieve a double or multiple output compared to a single roller arrangement with the same penetration depth, or there is the possibility of reducing the flake size by reducing the penetration depth for a given output.
  • a device 1 for removing fiber flakes comprises a stand 2, which travels along a row of bales 4 by means of wheels 3 on rails (not shown), in the direction A shown in FIG. 1 and in the direction B shown in FIG. 2
  • a removal member 5 on guide rails (not shown) in accordance with the arrows C and D. arranged up and down movable.
  • the removal member 5 has two rotating removal rollers 6a and 6b, which are known, for example, from the European patent application EP-A-58781. From this patent application it is known that these removal rollers consist of a series of toothed disks with gaps between the disks.
  • the removal rollers 6a and 6b are each in a roller carrier 8 and 9 rotatably and drivably mounted.
  • This roller carrier 8, respectively. 9 are in turn guided in the removal member 5 by means of slide rails (not shown), movable up and down according to the arrow directions C and D, this movement being carried out by means of an actuator drive 10 (FIG. 2).
  • a drive comprises a geared motor 12 with a rotation pulse generator 13 attached to the removal member 5 by means of a bracket 11 (FIG. 1).
  • the output shaft of the geared motor is at the same time a spindle 14 which is guided in a spindle sleeve 15.
  • the spindle sleeve is in turn on the roller carrier 8, respectively. 9 attached.
  • the roller carrier 8, respectively. 9 each further comprise a baffle plate 16 and 17 (FIG. 2), which open up into an outlet channel 18, as viewed in the figures.
  • a suction channel 19 resp. 20 with a minimal play between the respective suction channel and the outlet channel 18 in order to generate in the vicinity of the removal rollers the negative pressure necessary for the suction of the fiber flock conveying air.
  • the outlet channels 18 and the suction channels 19, respectively. 20 extend at least over the entire length of the removal rollers 6a, respectively. 6b, ie cover them Removal rollers.
  • the suction channels 19 and 20 are connected to a suction pipe 21, which in turn is connected to a vacuum source (not shown) in order to generate the aforementioned fiber flock conveying air flow.
  • the suction pipe is designed conically, in such a way that it increasingly has a larger diameter against the vacuum generator in order to obtain an essentially uniform amount of air sucked off over the entire length of the removal rolls.
  • the vacuum source is known per se from practice and is therefore not explained in more detail.
  • the removal member 5 could be modified such that not the entire removal member can be moved up and down, but only the roller carriers 8 and 9. Accordingly, the outlet channel 18 and the suction channel 19 or. 20 should be designed telescopically, and the spindle 14 would have to undergo a corresponding extension.
  • the removal member 5 as such would be arranged stationary in such a variant.
  • the grate bars 7 are also a component of the roller carrier 8 or in the case of the latter variant. 9, wherein these grate bars, as shown in Fig. 5, or as shown in Fig. 6, are attachable.
  • FIGS. 3, 4, 6 and 7 show a variant according to the invention, in which the same elements of FIGS. 1 and 2 have the same reference symbols.
  • This variant shows a device 1.1 for removing fiber flakes with the stand 2, but with a removal member 30, in which the rotatable and driven Removal rollers 6a and 6b are arranged stationary with respect to the removal member.
  • the removal member 30 is pivotally mounted as a whole by means of a hollow pivot axis 31, which rotates about an axis of rotation 39.
  • the pivot axis 31 is received by a rotary bearing 43 (FIG. 7) provided in a sliding carriage 40.
  • the means for moving the slide 40 up and down are described in EP-A 193647.
  • grate bars 32 are fastened either in the manner shown in FIG. 5 or in the manner shown in FIG. 6.
  • the removal member 30 is pivoted about the axis of rotation 39 by means of an actuator drive 33 (FIG. 6).
  • This comprises a geared motor 34 which is pivotally attached to a sliding element 35 which can be moved up and down with the removal member, in accordance with the directions of movement C and D. This is guided through a stationary guide tube 41.
  • the sliding element 35 is carried along for the movements in the aforementioned directions by a driver 42 which is fixedly arranged on the one hand on the sliding element 35 and on the other hand on the sliding carriage 40.
  • the output shaft of the geared motor is provided as a spindle 36 which is guided in a spindle sleeve 37.
  • the spindle sleeve is in turn pivotally attached to the removal member 30 by means of a pivot bearing 38.
  • the removal member 30 for guiding the air flow promoting fiber flakes also includes an air duct, which, according to its functions, extends over at least the entire length of the removal rollers 6a resp. 6b extends and is connected to a suction pipe which, in turn, is connected to a vacuum source (not shown) in order to generate the air flow mentioned.
  • the grate bars 32.1 shown in Fig. 5 are attached to side members 50, which in turn by means of a pivotally attached lifting mechanism relative to the removal rollers 6a and. 6b are movable.
  • the lifting mechanism comprises the gear stop motors 51 shown in the aforementioned European patent application and the threaded spindles 52.
  • the spindles 52 are guided in spindle sleeves 53, which are pivotally connected to the side members 50.
  • the gear stop motors are equipped with rotation pulse generators 54, with which the position of the removal grates 32.1 can be specified in a controller (not shown). Such controls are known per se.
  • removal member 30.1 of FIG. 5 can be provided in the same way with a pivoting mechanism shown in FIG. 6 and can be pivoted in the same way about the axis of rotation 39, without this again in detail mention.
  • FIGS. 8 to 11 show different operating variants which can be carried out with the devices shown hitherto.
  • FIG. 8 shows the possible uses of the removal member 30 (FIG. 6) and 30.1 (FIG. 5).
  • the pivoting angle ⁇ .1 of the removal rollers 6a and 6b resulting from the pivoting of this removal member has the same size as the pivoting angle ⁇ .1 of the grate bars 32.
  • the angle ⁇ .1 is assumed to be one Plane 56, which bears against the circumference of the removal rollers 6a and 6b, and on the other hand the angle ⁇ .1 is formed by the plane 55 and an imaginary plane 57, which contains the lower surface of the grate bars which dips into the bale surface.
  • the swivel angle ⁇ .1 is generally chosen such that the depth of penetration T.1 of the removal roller 6a is approximately half the depth of penetration T.2 of the removal roller 6b.
  • the penetration depth is understood to mean the degree of penetration of the respective removal roller relative to the bale surface in front of the removal member 30. This applies regardless of whether the stand moves in direction A (Fig. 3) or in direction B (Fig. 4).
  • the angle ⁇ is equal to the angle ⁇ .
  • Fig. 9 shows the same, but for the direction of travel B. Therefore, what has been said for the angles ⁇ .1 and ⁇ .1 also applies to the angles ⁇ .2 and ⁇ .2.
  • the suspension of the grate bars 32.1 of FIG. 5 is combined with a pivotable removal member, according to the removal member 30 of FIG. 6, it is possible to angle ⁇ .1 or ⁇ .2 and ⁇ .2 (FIG . 8) to choose differently.
  • FIG. 10 shows an example with the use of the removal member 30.1, that is to say without a pivoting mechanism, that is to say only with an adjustment possibility of the grate bars 32.1, so that the difference in the penetration depth T.3 between the removal roller 6a and the removal roller 6b by adjusting the Grate bars 32.1 with the angle ⁇ .3 for the direction of travel A and with the angle ⁇ .4 for the direction of travel B are produced.
  • the directions of rotation G and H or K and L (K and L not shown in FIG. 10) can be selected.
  • FIG. 10 shows the use of the removal member 5 according to FIGS. 1 and 2, but only for the direction of travel A.
  • the penetration depths T.1 and T.2 can be selected individually and can accordingly be shown in the return trip B (not shown in FIG. 10) ) take place alternately, provided flakes are removed in both directions of travel.
  • the arrow B shown with dashed lines and the row of balls 4 shown with dashed lines indicate a variant which is possible with all removal means, namely that on the return trip the removal elements 5 and. 30 resp. 30.1 are lifted away from the bale surface and always have the same inclination. In this way, fiber flakes are always removed from the bales only in direction A.
  • This variant can also be used if it is intended to always remove the mixture from the same side within the fiber bale row.
  • a fixed inclined position of the removal rollers can also be selected for such a variant.
  • inventive concept presented in this application can still be combined with the inventive concept shown in European patent application EP-A-0193647.
  • the depth of delivery of the removal member 5 or. 30 resp. 30.1 per passage changed with increasing fiber bale density, i.e. is reduced in size, firstly to make the output uniform and secondly to gently remove the fiber flakes from the fiber bales.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

According to the invention, a fibre bale stripper 1.1, which travels in the direction of arrow A with the bale stripper element 30 over a row of bales 4 and, by means of the stripper rolls 6a and 6b, detaches fibre tufts from the surface of the bale rows, is operated with the stripper rolls set at an angle in order either to increase the productivity or, for the same productivity, reduce the tuft size. The stripper rolls 6a and 6b are set at an angle according to the invention in such a way that the penetration depth T.1 corresponds essentially to half the penetration depth T.2. These penetration depths can be achieved on the one hand by adjusting the position of the stripper element 30 in the direction D, specifically to achieve the stripping depth T.1, and on the other through the pivotability of the stripper element 30 about the pivot axis 33. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zum Abtragen von Faserflocken aus in Reihe angeordneten Faserballen, z.B. Baumwoll- oder Kunstfaserballen und dergleichen, mittels einem über die Faserballen fahrenden Abtragorgan mit mindestens zwei rotierenden Abtragwalzen gemäss dem Oberbegriff des 1. und 2. Verfahrens- und 7., 10. und 17. Vorrichtungsanspruches.The invention relates to a method and an apparatus for removing fiber flakes from fiber bales arranged in series, e.g. Cotton or synthetic fiber bales and the like, by means of a removal member traveling over the fiber bales with at least two rotating removal rollers according to the preamble of the 1st and 2nd process and 7th, 10th and 17th device claims.

Aus der deutschen Patentschrift DE-C-3334069 und der deutschen Auslegeschrift DE-A-3334222 ist das Verfahren und die Vorrichtung der oben genannten Art bekannt. Bei diesem Verfahren bzw. bei dieser Vorrichtung dringt das Abtragorgan bei jeder Überfahrt mit einer vorgegebenen Eindringtiefe in die Faserballen ein, um den Abtragwalzen Gelegenheit zu geben, Faserflocken aus der Oberfläche zu lösen, welche anschliessend einem pneumatischen Förderschacht übergeben werden.The method and the device of the type mentioned above are known from the German patent specification DE-C-3334069 and the German design specification DE-A-3334222. With this method or with this device, the removal member penetrates the fiber bales with a predetermined penetration depth each time it is passed over, in order to give the removal rollers the opportunity to detach fiber flakes from the surface, which then transfer them to a pneumatic conveyor shaft will.

Dabei sind die Achsen der Abtragwalzen horizontal angeordnet. Ausserdem sind sie gemäss der DE-A-33 34 069 als Zahnscheiben ausgebildet, welche - in Richtung der Rotationsachse der Abtragwalzen gesehen - mit Zwischenräumen zwischen den Zahnscheiben aneinandergereiht sind, welche auf der Oberfläche der Faserballen beim Abtragen der Faserflocken aufliegen.The axes of the removal rollers are arranged horizontally. In addition, they are designed according to DE-A-33 34 069 as toothed disks, which - as seen in the direction of the axis of rotation of the removal rollers - are lined up with gaps between the toothed disks which lie on the surface of the fiber bales when the fiber flakes are removed.

Bei solchen Doppelwalzen-Ballenöffnern drehen die Abtragwalzen gegenläufig, wobei jeweils die in Fahrtrichtung gesehen vordere Abtragwalze im sogenannten Gleichlauf mit der Fahrtrichtung dreht, um die Faserflocken in diesem Gleichlauf aus der Oberfläche zu lösen. Die in Fahrtrichtung gesehen hintere Walze dreht entsprechend in entgegengesetzter Drehrichtung und löst im Gegenlauffrässystem Faserflocken aus derselben Oberfläche.In such double-roller bale openers, the removal rollers rotate in opposite directions, the front removal roller viewed in the direction of travel rotating in the so-called synchronism with the direction of travel in order to detach the fiber flakes from the surface in this synchronization. The rear roller seen in the direction of travel rotates in the opposite direction and loosens fiber flakes from the same surface in the counter-milling system.

Es ist nun jedoch bekannt, dass das Faserflocken-Herauslösen in der vorgenannten Gegenlaufrichtung einen schlechteren mengenmässigen Auflösewirkungsgrad aufweist als eine Walze, welche in Gleichlaufrichtung dreht.However, it is now known that the removal of fiber flakes in the aforementioned counter-direction has a poorer quantitative degree of dissolution efficiency than a roller which rotates in the direction of rotation.

Ebenfalls sind Abtragorgane mit einer Auflösewalze bekannt, deren Drehrichtung reversierbar ist, sodass die Auflösewalze jeweils in Gleichlaufrichtung drehbar ist.Removal elements with an opening roller are also known, the direction of rotation of which is reversible, so that the opening roller can be rotated in the direction of synchronization.

Mit der vorgenannten Doppelwalzenanordnung des Standes der Technik besteht zwar die Möglichkeit, im Hin- und Hergang des Abtragorganes Flocken auszulösen, ohne die Abtragwalzen in ihrer Drehrichtung ändern zu müssen, weil jeweils die in Fahrtrichtung gesehen vordere Walze in Gleichlaufrichtung dreht. Eine Erhöhung der Abtragleistung kann im Vergleich mit dem genannten Einwalzen-Abtragorgan jedoch infolge des schlechten mengenmässigen Wirkungsgrades der gegenläufigen Abtragwalze kaum erreicht werden.With the aforementioned double roller arrangement of the prior art, there is the possibility of triggering flakes in the back and forth of the removal member without changing the direction of the removal rollers must, because the front roller seen in the direction of travel rotates in the same direction. However, an increase in the removal rate can hardly be achieved in comparison with the single-roll removal member mentioned due to the poor quantitative efficiency of the counter-rotating removal roller.

Eine Verbesserung der vorgenannten Abtragleistung besteht in der Möglichkeit, beide Abtragwalzen pro Fahrtrichtung in Gleichlaufrichtung drehen zu lassen, was jedoch bedingt, dass für die Rückfahrt den Walzen eine entgegengesetzte Drehrichtung gegeben wird oder, dass das Abtragorgan von der Oberfläche abgehoben wird, so dass Faserflocken nur in einer Fahrtrichtung ausgelöst werden können. Die Leistungserhöhung ist jedoch im letztgenannten Falle selbst mit einer raschen Rückfahrt etwas problematisch, da je nach Länge der Ballenreihen ein Zeitinterval in Kauf genommen werden muss, während welchem keine Faserflocken herausgelöst werden.An improvement in the abovementioned removal performance consists in the possibility of having both removal rollers rotate in the same direction in each direction of travel, which, however, means that the rollers are given an opposite direction of rotation for the return trip or that the removal member is lifted from the surface, so that fiber flakes only can be triggered in one direction. In the latter case, however, the increase in output is somewhat problematic even with a rapid return trip, since, depending on the length of the bale rows, a time interval must be accepted during which no fiber flakes are released.

Ein weiteres Mittel, um die Leistung zu erhöhen, besteht bekannterweise darin, die Walzenlänge entsprechend zu vergrössern, und zwar mit Abtragorganen, welche eine einzige Walze oder zwei Walzen aufweisen.Another means of increasing the performance is known to be to increase the length of the roll accordingly, with removal elements which have a single roll or two rolls.

Der Nachteil einer solchen Massnahme besteht jedoch in der weiten Ausladung des Abtragorganes am fahrbaren, das Abtragorgan aufnehmenden Ständer, was eine mechanisch höhere Belastung des ganzen Systems ergibt.The disadvantage of such a measure, however, consists in the wide overhang of the removal member on the mobile stand receiving the removal member, which results in a mechanically higher load on the entire system.

Es ist deshalb Aufgabe der Erfindung, die Abtragleistung, ohne Abhängigkeit von der Länge der Abtragewalzen zu erhöhen.It is therefore an object of the invention to achieve the removal rate without being dependent on the length of the removal rollers to increase.

Die Lösung der Aufgabe ist verfahrensmässig im Kennzeichen des 1. und 2. Anspruches und vorrichtungsmässig in den Kennzeichen der Ansprüche 7, 10 und 17 aufgeführt.The solution to the problem is procedurally listed in the characteristics of claims 1 and 2 and device-wise in the characteristics of claims 7, 10 and 17.

Vorteilhafte Ausführungsformen sind in den entsprechenden, abhängigen Ansprüchen aufgeführt.Advantageous embodiments are set out in the corresponding dependent claims.

Die Vorteile der Erfindung bestehen darin, dass einerseits durch die unterschiedliche Eindringtiefe der Walzen beide Walzen die volle Abtragtiefe ausnützen können, so dass bei einer Zweiwalzen-Anordnung eine effektive Verdoppelung der Abtragleistung geschieht, oder dass andererseits bei einer für eine Walze äquivalenten Abtragleistung kleinere Flocken herausgelöst werden können, da bekanntlich mit zunehmender Eindringtiefe pro Überfahrt die Flockengrösse vergrössert wird, was nicht immer erwünscht ist. Anders ausgedrückt, kann mit einer Doppel- oder Mehrfachwalzen-Anordnung eine gegenüber einer Einfachwalzen-Anordnung, bei gleicher Eindringtiefe, Doppel- oder Mehrfachleistung erbracht werden, oder es besteht die Möglichkeit, bei gegebener Leistung durch Verringerung der Eindringtiefe die Flockengrösse zu verringern.The advantages of the invention are that, on the one hand, due to the different penetration depth of the rollers, both rollers can utilize the full removal depth, so that the removal capacity is effectively doubled in a two-roller arrangement, or, on the other hand, smaller flakes are removed with an removal capacity equivalent to a roller can be, since it is known that the flake size increases with increasing depth of penetration per crossing, which is not always desirable. In other words, a double or multiple roller arrangement can be used to achieve a double or multiple output compared to a single roller arrangement with the same penetration depth, or there is the possibility of reducing the flake size by reducing the penetration depth for a given output.

Die Erfindung wird im folgenden anhand von lediglich Ausführungsbeispiele darstellenden Zeichnungen näher erläutert. Es zeigt:

Fig. 1
eine erfindungsgemässe Abtragvorrichtung mit einem erfindungsgemässen Abtragorgan, halbschematisch und in Ansicht dargestellt,
Fig. 2
die Vorrichtung von Fig. 1 in entgegengesetzter Fahrtrichtung zur Fahrtrichtung von Fig. 1,
Fig. 3
eine Abtragvorrichtung mit einem weiteren erfindungsgemässen Abtragorgan, ebenfalls schematisch und in Ansicht dargestellt,
Fig. 4
die Vorrichtung von Fig. 3 in entgegengesetzter Fahrtrichtung zur Fahrtrichtung von Fig. 3 gezeigt,
Fig. 5
ein weiteres erfindungsgemässes Abtragorgan einer Abtragvorrichtung, halbschematisch und in Ansicht gezeigt,
Fig. 6
das Abtragorgan der Abtragvorrichtung der Figuren 3 und 4, halbschematisch, detaillierter und vergrössert dargestellt,
Fig. 7
die Abtragvorrichtung der Figuren 3 und 4, in Blickrichtung M (Fig. 3) gesehen, mit zusätzlichen Details dargestellt,
Fig. 8 bis 11
schematische Darstellungen der Ausführungsschritte des erfindungsgemässen Verfahrens.
The invention is explained in more detail below on the basis of drawings which illustrate exemplary embodiments only. It shows:
Fig. 1
a removal device according to the invention with a removal member according to the invention, shown semi-schematically and in view,
Fig. 2
1 in the opposite direction to the direction of FIG. 1,
Fig. 3
a removal device with a further removal member according to the invention, also shown schematically and in view,
Fig. 4
3 shows the device of FIG. 3 in the opposite direction of travel to the direction of travel of FIG. 3,
Fig. 5
another removal device according to the invention of a removal device, shown semi-schematically and in view,
Fig. 6
the removal member of the removal device of Figures 3 and 4, shown semi-schematically, in more detail and enlarged,
Fig. 7
the removal device of Figures 3 and 4, viewed in the direction of view M (Fig. 3), shown with additional details,
8 to 11
schematic representations of the execution steps of the inventive method.

Eine Vorrichtung 1 zum Abtragen von Faserflocken umfasst einen Ständer 2, welcher mittels Rädern 3 auf Schienen (nicht gezeigt) an einer Ballenreihe 4 entlang fährt, und zwar in der in Fig. 1 gezeigten Richtung A und in der in Fig. 2 gezeigten Richtung B. Am Ständer 2 ist entsprechend den Pfeilen C und D ein Abtragorgan 5 auf Führungsschienen (nicht gezeigt) auf- und abbewegbar angeordnet.A device 1 for removing fiber flakes comprises a stand 2, which travels along a row of bales 4 by means of wheels 3 on rails (not shown), in the direction A shown in FIG. 1 and in the direction B shown in FIG. 2 On the stand 2 there is a removal member 5 on guide rails (not shown) in accordance with the arrows C and D. arranged up and down movable.

Das Abtragorgan 5 weist zwei rotierende Abtragwalzen 6a und 6b auf, welche bspw. aus der europäischen Patentanmeldung EP-A-58781 her bekannt sind. Aus dieser Patentanmeldung ist bekannt, dass diese Abtragwalzen aus einer Aneinanderreihung von Zahnscheiben mit Zwischenräumen zwischen den Scheiben bestehen.The removal member 5 has two rotating removal rollers 6a and 6b, which are known, for example, from the European patent application EP-A-58781. From this patent application it is known that these removal rollers consist of a series of toothed disks with gaps between the disks.

Die Abtragwalzen 6a und 6b sind je in einem Walzenträger 8 resp. 9 dreh- und antreibbar gelagert.The removal rollers 6a and 6b are each in a roller carrier 8 and 9 rotatably and drivably mounted.

Diese Walzenträger 8 resp. 9 sind ihrerseits im Abtragorgan 5 mittels Gleitschienen (nicht gezeigt), gemäss den Pfeilrichtungen C und D auf und ab bewegbar geführt, wobei diese Bewegung mittels eines Stellmotorantriebes 10 (Fig. 2) durchgeführt wird. Ein solcher Antrieb umfasst einen am Abtragorgan 5 mittels einer Konsole 11 (Fig. 1) befestigten Getriebemotor 12 mit einem Umdrehungsimpulsgeber 13. Die Abgangswelle des Getriebemotors ist gleichzeitig eine Spindel 14, welche in einer Spindelhülse 15 geführt ist. Die Spindelhülse ihrerseits ist am Walzenträger 8 resp. 9 befestigt. Die Walzenträger 8 resp. 9 umfassen im weiteren je ein Leitblech 16 und 17 (Fig. 2), welche nach oben, mit Blick auf die Figuren gesehen, in einen Austrittskanal 18 münden. In diesen Austrittskanal greift ein Absaugkanal 19 resp. 20 mit einem minimalen Spiel zwischen dem jeweiligen Absaugkanal und dem Austrittskanal 18 ein, um in der Umgebung der Abtragwalzen den für die Absaugung der Faserflockenförderluft notwendigen Unterdruck zu erzeugen. Die Austrittskanäle 18 sowie die Absaugkanäle 19 resp. 20 reichen mindestens über die gesamte Länge der Abtragwalzen 6a resp. 6b, d.h. überdecken diese Abtragwalzen.This roller carrier 8, respectively. 9 are in turn guided in the removal member 5 by means of slide rails (not shown), movable up and down according to the arrow directions C and D, this movement being carried out by means of an actuator drive 10 (FIG. 2). Such a drive comprises a geared motor 12 with a rotation pulse generator 13 attached to the removal member 5 by means of a bracket 11 (FIG. 1). The output shaft of the geared motor is at the same time a spindle 14 which is guided in a spindle sleeve 15. The spindle sleeve is in turn on the roller carrier 8, respectively. 9 attached. The roller carrier 8, respectively. 9 each further comprise a baffle plate 16 and 17 (FIG. 2), which open up into an outlet channel 18, as viewed in the figures. In this outlet channel, a suction channel 19 resp. 20 with a minimal play between the respective suction channel and the outlet channel 18 in order to generate in the vicinity of the removal rollers the negative pressure necessary for the suction of the fiber flock conveying air. The outlet channels 18 and the suction channels 19, respectively. 20 extend at least over the entire length of the removal rollers 6a, respectively. 6b, ie cover them Removal rollers.

Die Absaugkanäle 19 und 20 sind an ein Absaugrohr 21 angeschlossen, welches seinerseits an einer Unterdruckquelle (nicht gezeigt) angeschlossen ist, um den vorerwähnten Faserflockenförderluftstrom zu erzeugen. Das Absaugrohr ist dabei konisch gestaltet, und zwar derart, dass dieses zunehmend gegen den Unterdruckerzeuger einen grösseren Durchmesser aufweist, um eine über die ganze Länge der Abtragwalzen, im wesentlichen gleichmässig abgesaugte Luftmenge zu erhalten. Die Unterdruckquelle ist an sich aus der Praxis bekannt und wird deshalb nicht näher erläutert.The suction channels 19 and 20 are connected to a suction pipe 21, which in turn is connected to a vacuum source (not shown) in order to generate the aforementioned fiber flock conveying air flow. The suction pipe is designed conically, in such a way that it increasingly has a larger diameter against the vacuum generator in order to obtain an essentially uniform amount of air sucked off over the entire length of the removal rolls. The vacuum source is known per se from practice and is therefore not explained in more detail.

Als nicht gezeigte Variante könnte das Abtragorgan 5 derart abgeändert werden, dass nicht das ganze Abtragorgan auf und ab bewegbar ist, sondern lediglich die Walzenträger 8 und 9. Dementsprechend müsste der Austrittskanal 18 und der Absaugkanal 19 resp. 20 teleskopartig gestaltet sein, und die Spindel 14 müsste eine entsprechende Verlängerung erfahren. Das Abtragorgan 5 als solches wäre in einer derartigen Variante stationär angeordnet.As a variant not shown, the removal member 5 could be modified such that not the entire removal member can be moved up and down, but only the roller carriers 8 and 9. Accordingly, the outlet channel 18 and the suction channel 19 or. 20 should be designed telescopically, and the spindle 14 would have to undergo a corresponding extension. The removal member 5 as such would be arranged stationary in such a variant.

Die Roststäbe 7 sind auch im Falle der letztgenannten Variante ein Bestandteil des Walzenträgers 8 resp. 9, wobei diese Roststäbe, wie in Fig. 5 gezeigt, oder wie in Fig. 6 gezeigt, befestigbar sind.The grate bars 7 are also a component of the roller carrier 8 or in the case of the latter variant. 9, wherein these grate bars, as shown in Fig. 5, or as shown in Fig. 6, are attachable.

Die Figuren 3,4,6 und 7 zeigen eine erfindungsgemässe Variante, in welcher die gleichen Elemente der Figuren 1 und 2 dieselben Bezugszeichen aufweisen. Diese Variante zeigt eine Vorrichtung 1.1 zum Abtragen von Faserflocken mit dem Ständer 2, jedoch mit einem Abtragorgan 30, in welchem die dreh- und antreibbaren Abtragwalzen 6a resp. 6b in Bezug auf das Abtragorgan stationär angeordnet sind.FIGS. 3, 4, 6 and 7 show a variant according to the invention, in which the same elements of FIGS. 1 and 2 have the same reference symbols. This variant shows a device 1.1 for removing fiber flakes with the stand 2, but with a removal member 30, in which the rotatable and driven Removal rollers 6a and 6b are arranged stationary with respect to the removal member.

Das Abtragorgan 30 ist als Ganzes mittels einer hohlen Schwenkachse 31, welche um eine Drehachse 39 dreht, schwenkbar gelagert. Dabei wird die Schwenkachse 31 von einem, in einem Gleitschlitten 40 vorgesehenen Drehlager 43 (Fig. 7) aufgenommen. Die Mittel, um den Gleitschlitten 40 auf und ab zu bewegen, sind in der EP-A 193647 beschrieben.The removal member 30 is pivotally mounted as a whole by means of a hollow pivot axis 31, which rotates about an axis of rotation 39. The pivot axis 31 is received by a rotary bearing 43 (FIG. 7) provided in a sliding carriage 40. The means for moving the slide 40 up and down are described in EP-A 193647.

Im weiteren sind Roststäbe 32 entweder in der in Fig. 5 oder in der in Fig. 6 gezeigten Weise befestigt.Furthermore, grate bars 32 are fastened either in the manner shown in FIG. 5 or in the manner shown in FIG. 6.

Das Schwenken des Abtragorganes 30 um die Drehachse 39 geschieht mittels eines Stellmotorantriebes 33 (Fig. 6). Dieser umfasst einen Getriebemotor 34, der schwenkbar an einem mit dem Abtragorgan, entsprechend den Bewegungsrichtungen C und D, auf und ab bewegbaren Gleitelement 35 befestigt ist. Dieses ist durch ein stationär angeordnetes Führungsrohr 41 geführt. Dabei wird das Gleitelement 35 für die Bewegungen in den vorgenannten Richtungen durch einen Mitnehmer 42 mitgenommen, welcher einerseits am Gleitelement 35 und andererseits am Gleitschlitten 40 fest angeordnet ist. Im weiteren ist die Ausgangswelle des Getriebemotors als Spindel 36 vorgesehen, welche in einer Spindelhülse 37 geführt ist. Die Spindelhülse ihrerseits ist wiederum schwenkbar am Abtragorgan 30 mittels eines Schwenklagers 38 befestigt.The removal member 30 is pivoted about the axis of rotation 39 by means of an actuator drive 33 (FIG. 6). This comprises a geared motor 34 which is pivotally attached to a sliding element 35 which can be moved up and down with the removal member, in accordance with the directions of movement C and D. This is guided through a stationary guide tube 41. The sliding element 35 is carried along for the movements in the aforementioned directions by a driver 42 which is fixedly arranged on the one hand on the sliding element 35 and on the other hand on the sliding carriage 40. Furthermore, the output shaft of the geared motor is provided as a spindle 36 which is guided in a spindle sleeve 37. The spindle sleeve is in turn pivotally attached to the removal member 30 by means of a pivot bearing 38.

Im weiteren umfasst das Abtragorgan 30 für das Führen des Faserflocken fördernden Luftstromes noch einen Luftführungsschacht, welcher sich entsprechend seinen Funktionen über mindestens die ganze Länge der Abtragwalzen 6a resp. 6b erstreckt und mit einem Absaugrohr verbunden ist, welches zur Erzeugung des genannten Luftstromes seinerseits an einer Unterdruckquelle (nicht gezeigt) angeschlossen ist.Furthermore, the removal member 30 for guiding the air flow promoting fiber flakes also includes an air duct, which, according to its functions, extends over at least the entire length of the removal rollers 6a resp. 6b extends and is connected to a suction pipe which, in turn, is connected to a vacuum source (not shown) in order to generate the air flow mentioned.

Aus der europäischen Patentanmeldung EP-A-0199041 sind bereits verstellbare Roststäbe, welche relativ zur Lage der Abtragwalzen bewegbar sind, bekannt, weshalb die mit Fig. 5 gezeigte Variante nicht in allen Details erklärt wird.From the European patent application EP-A-0199041, adjustable grate bars, which are movable relative to the position of the removal rollers, are already known, which is why the variant shown in FIG. 5 is not explained in all details.

Die in Fig. 5 gezeigten Roststäbe 32.1 sind an Längsträgern 50 befestigt, die ihrerseits mittels einem schwenkbar daran befestigten Hubmechanismus relativ zu den Abtragwalzen 6a resp. 6b bewegbar sind. Der Hubmechanismus umfasst die in der vorgenannten europäischen Patentanmeldung gezeigten Getriebestoppmotoren 51 sowie die Gewindespindeln 52.The grate bars 32.1 shown in Fig. 5 are attached to side members 50, which in turn by means of a pivotally attached lifting mechanism relative to the removal rollers 6a and. 6b are movable. The lifting mechanism comprises the gear stop motors 51 shown in the aforementioned European patent application and the threaded spindles 52.

Die Spindeln 52 sind in Spindelhülsen 53 geführt, welche schwenkbar mit den Längsträgern 50 verbunden sind. Wie im weiteren aus der europäischen Patentanmeldung EP-A-0199041 ersichtlich, sind pro Längsträger 50 zwei Hubvorrichtungen vorgesehen. Dementsprechend sind die Getriebestoppmotoren mit Umdrehungsimpulsgebern 54 ausgerüstet, womit in einer Steuerung (nicht gezeigt) die Lage der Abtragroste 32.1 vorgegeben werden kann. Solche Steuerungen sind an sich bekannt.The spindles 52 are guided in spindle sleeves 53, which are pivotally connected to the side members 50. As can be seen further from the European patent application EP-A-0199041, two lifting devices are provided per side member 50. Accordingly, the gear stop motors are equipped with rotation pulse generators 54, with which the position of the removal grates 32.1 can be specified in a controller (not shown). Such controls are known per se.

Im weiteren sei nochmals erwähnt, dass das Abtragorgan 30.1 der Fig. 5 in gleicher Weise mit einem in Fig. 6 gezeigten Schwenkmechanismus versehen werden kann und in gleicher Weise um die Drehachse 39 schwenkbar sein kann, ohne dies nochmals im Detail zu erwähnen.It should also be mentioned again that the removal member 30.1 of FIG. 5 can be provided in the same way with a pivoting mechanism shown in FIG. 6 and can be pivoted in the same way about the axis of rotation 39, without this again in detail mention.

Mit den Figuren 8 bis 11 sind verschiedene Betriebsvarianten gezeigt, welche mit den bisher gezeigten Vorrichtungen ausgeführt werden können.FIGS. 8 to 11 show different operating variants which can be carried out with the devices shown hitherto.

Dabei zeigt Fig. 8 die Verwendungsmöglichkeit des Abtragorganes 30 (Fig. 6) und 30.1 (Fig. 5).8 shows the possible uses of the removal member 30 (FIG. 6) and 30.1 (FIG. 5).

Im Falle der Verwendung des Abtragorganes 30 weist der sich aus der Schwenkung dieses Abtragorganes ergebende Schwenkwinkel α.1 der Abtragwalzen 6a und 6b die gleiche Grösse auf wie der Schwenkwinkel β.1 der Roststäbe 32. Dabei wird einerseits der Winkel α.1 von einer gedachten Ebene 56, welche am Umfang der Abtragwalzen 6a und 6b anliegt, und andererseits der Winkel β.1 von der Ebene 55 und einer gedachten Ebene 57 gebildet, welche die untere,in die Ballenoberfläche eintauchende Fläche der Roststäbe beinhaltet. Der Schwenkwinkel α.1 wird in der Regel derart gewählt, dass die Eindringtiefe T.1 der Abtragwalze 6a etwa halb so gross ist wie die Eindringtiefe T.2 der Abtragwalze 6b. Dabei wird unter Eindringungstiefe das Mass des Eindringens der jeweiligen Abtragwalze gegenüber der Ballenoberfläche vor dem Abtragorgan 30 verstanden. Dies gilt unabhängig davon, ob der Ständer in Richtung A (Fig. 3) oder in Richtung B (Fig. 4) fährt. Ausserdem ist bei der Verwendung des Abtragorgans 30 der Winkel α gleich dem Winkel β.If the removal member 30 is used, the pivoting angle α.1 of the removal rollers 6a and 6b resulting from the pivoting of this removal member has the same size as the pivoting angle β.1 of the grate bars 32. On the one hand, the angle α.1 is assumed to be one Plane 56, which bears against the circumference of the removal rollers 6a and 6b, and on the other hand the angle β.1 is formed by the plane 55 and an imaginary plane 57, which contains the lower surface of the grate bars which dips into the bale surface. The swivel angle α.1 is generally chosen such that the depth of penetration T.1 of the removal roller 6a is approximately half the depth of penetration T.2 of the removal roller 6b. The penetration depth is understood to mean the degree of penetration of the respective removal roller relative to the bale surface in front of the removal member 30. This applies regardless of whether the stand moves in direction A (Fig. 3) or in direction B (Fig. 4). In addition, when using the removal member 30, the angle α is equal to the angle β.

Die Fig. 9 zeigt dasselbe, jedoch für die Fahrtrichtung B. Es gilt deshalb das für die Winkel α.1 und β.1 Gesagte auch für die Winkel α.2 resp.β.2.Fig. 9 shows the same, but for the direction of travel B. Therefore, what has been said for the angles α.1 and β.1 also applies to the angles α.2 and β.2.

Wird in einer ebenfalls möglichen Variante die Aufhängung der Roststäbe 32.1 der Fig. 5 mit einem schwenkbaren Abtragorgan, gemäss dem Abtragorgan 30 der Fig. 6 kombiniert, so besteht die Möglichkeit, die Winkel α.1 resp α.2 und β.2 (Fig. 8) unterschiedlich zu wählen.If, in a variant which is also possible, the suspension of the grate bars 32.1 of FIG. 5 is combined with a pivotable removal member, according to the removal member 30 of FIG. 6, it is possible to angle α.1 or α.2 and β.2 (FIG . 8) to choose differently.

Mit den Drehrichtungspfeilen G (Fig. 8) resp. H (Fig. 9) wird gezeigt, dass im Falle von Fig. 8 die Abtragwalzen mit der Drehrichtung G resp. in Fig. 9 mit der Drehrichtung H sogenannt gleichlaufend mit der Fahrtrichtung A resp. B drehen. Hingegen, wenn die Abtragwalzen 6a und 6b entsprechend den Drehrichtungen K und L drehen, dreht im Falle von Fig. 8 die Abtragwalze 6a gleichlaufend und die Abtragwalze 6b gegenlaufend, während im Beispiel von Fig. 9 die Abtragwalze 6b gleichlaufend und die Abtragwalze 6a gegenlaufend dreht. Die Fig. 10 zeigt ein Beispiel mit der Anwendung des Abtragorganes 30.1, das heisst ohne Schwenkmechanismus, das heisst lediglich mit einer Verstellmöglichkeit der Roststäbe 32.1, so dass der Unterschied der Eindringtiefe T.3 zwischen der Abtragwalze 6a und der Abtragwalze 6b durch das Einstellen der Roststäbe 32.1 mit dem Winkel β.3 für die Fahrtrichtung A und mit dem Winkel β.4 für die Fahrtrichtung B erzeugt wird. Dabei können die Drehrichtungen G und H oder K und L (K und L in Fig. 10 nicht angegeben) gewählt werden.With the direction arrows G (Fig. 8) respectively. H (Fig. 9) shows that in the case of Fig. 8, the removal rollers with the direction of rotation G or. in Fig. 9 with the direction of rotation H so-called synchronized with the direction of travel A respectively. B turn. On the other hand, if the removal rollers 6a and 6b rotate according to the directions of rotation K and L, in the case of FIG. 8 the removal roller 6a rotates in the same direction and the removal roller 6b rotates in the opposite direction, while in the example of FIG. 9 the removal roller 6b rotates in the same direction and the removal roller 6a rotates in the opposite direction . 10 shows an example with the use of the removal member 30.1, that is to say without a pivoting mechanism, that is to say only with an adjustment possibility of the grate bars 32.1, so that the difference in the penetration depth T.3 between the removal roller 6a and the removal roller 6b by adjusting the Grate bars 32.1 with the angle β.3 for the direction of travel A and with the angle β.4 for the direction of travel B are produced. The directions of rotation G and H or K and L (K and L not shown in FIG. 10) can be selected.

Die Fig. 10 zeigt die Verwendung des Abtragorganes 5 gemäss den Figuren 1 und 2, jedoch lediglich für die Fahrtrichtung A. Die Eindringtiefen T.1 und T.2 sind individuell anwählbar und können entsprechend in der Rückfahrt B (nicht in Fig. 10 dargestellt) wechselseitig erfolgen, sofern in beiden Fahrtrichtungen Flocken abgetragen werden.FIG. 10 shows the use of the removal member 5 according to FIGS. 1 and 2, but only for the direction of travel A. The penetration depths T.1 and T.2 can be selected individually and can accordingly be shown in the return trip B (not shown in FIG. 10) ) take place alternately, provided flakes are removed in both directions of travel.

Der mit gestrichelten Linien gezeigte Pfeil B und die mit gestrichelten Linien gezeigte Ballenreihe 4 deuten auf eine Variante hin, welche mit allen Abtragorgan möglich ist, nämlich, dass auf der Rückfahrt die Abtragorgane 5 resp. 30 resp. 30.1 von der Ballenoberfläche weggehoben werden und immer dieselbe Schrägstellung aufweisen. Auf diese Weise werden immer nur in Richtung A Faserflocken aus den Ballen abgetragen. Diese Variante kann auch dann zum Tragen kommen, wenn beabsichtigt wird, die Mischung innerhalb der Faserballenreihe immer von der gleichen Seite her abzutragen. Für eine solche Variante kann auch eine feste Schräglage der Abtragwalzen gewählt werden.The arrow B shown with dashed lines and the row of balls 4 shown with dashed lines indicate a variant which is possible with all removal means, namely that on the return trip the removal elements 5 and. 30 resp. 30.1 are lifted away from the bale surface and always have the same inclination. In this way, fiber flakes are always removed from the bales only in direction A. This variant can also be used if it is intended to always remove the mixture from the same side within the fiber bale row. A fixed inclined position of the removal rollers can also be selected for such a variant.

Im weiteren kann der in dieser Anmeldung dargelegte Erfindungsgedanke noch mit dem in der europäischen Patentanmeldung EP-A-0193647 gezeigten Erfindungsgedanken kombiniert werden. In der letztgenannten Anmeldung wird dargestellt, dass die Zustelltiefe des Abtragorganes 5 resp. 30 resp. 30.1 pro Überfahrt mit zunehmender Faserballendichte verändert, d.h. verkleinert wird, um erstens die Leistung gleichmässig zu gestalten und andererseits die Faserflocken schonend aus den Faserballen herauszulösen.Furthermore, the inventive concept presented in this application can still be combined with the inventive concept shown in European patent application EP-A-0193647. In the latter application it is shown that the depth of delivery of the removal member 5 or. 30 resp. 30.1 per passage changed with increasing fiber bale density, i.e. is reduced in size, firstly to make the output uniform and secondly to gently remove the fiber flakes from the fiber bales.

Das heisst, dass die Eindringtiefe T.1 resp. T.2 mit zunehmender Faserballendichte entsprechend ebenfalls verändert werden kann. Die dazu notwendige Vorrichtung wird in der letztgenannten, europäischen Patentanmeldung gezeigt und beschrieben, weshalb auf eine weitere Darstellung in dieser Anmeldung der Einfachheit halber verzichtet wird.That means that the penetration depth T.1 resp. T.2 can also be changed accordingly with increasing fiber bale density. The device necessary for this is shown and described in the last-mentioned European patent application, which is why a further representation in this application is omitted for the sake of simplicity.

Letztlich versteht es sich von selbst, dass der Erfindungsgedanke und damit die gezeigten Ausführungsformen auch mit drei und mehr Abtragwalzen durchführbar ist, ebenso, dass Abtragorgane ohne Roststäbe verwendet werden können.Ultimately, it goes without saying that the idea of the invention and thus the embodiments shown can also be carried out with three or more removal rollers, and also that removal elements can be used without grate bars.

Claims (17)

  1. A method for taking off tufts from fibre bales (4) arranged in a row by means of a take-off member (5, 30, 30.1) driving over the fibre bales and comprising at least two rotating take-off rollers (6a, 6b) which are arranged next to one another as seen in the axial direction of the rollers and which are arranged behind one another as seen in the driving direction (A, B) of the take-off member and which penetrate the fibre bales at a penetration depth provided for taking off tufts and driving over these, characterized in that the penetration depth (T.2) of the rear roller (6b or 6a) as seen in the driving direction (A, B) is higher than that (T.1) of the front roller (6a or 6b), with the "penetration depth" (T.1, T.2) meaning the amount of penetration of the respective take-off roller (6a, 6b) with respect to the bale surface in front of the take-off member.
  2. A method for taking off tufts from fibre bales (4) arranged in a row by means of a take-off member (5, 30, 30.1) driving over the fibre bales with at least two rotating take-off rollers (6a, 6b) comprising toothed disks (not shown), which rollers are arranged next to one another as seen in the axial direction of the rollers and which are arranged behind one another as seen in the driving direction (A, B) of the take-off member and whose toothed disks project through grate rods (32.1) for the taking off process, whereby the take-off rollers penetrate the fibre bales at a predefined penetration depth and are driven over these, characterized in that the grate rods (32.1) are arranged with an adjustable position with respect to the rollers (6a, 6b) in such a way that the grate rods assume an opening angle (B.3 or B.4) with respect to the bale surface as seen in the driving direction (A or B), so that in this way the toothed disks of the front roller (6a or 6b), as seen in the driving direction, penetrate further between the grate rods according to a penetration depth (T.3) than the toothed disks of the rear roller (6a or 6b) (Figs. 5, 10).
  3. A method as claimed in claim 1 or 2, characterized in that the different penetration depth (T.1, T.2 or T.3) is adapted to the bale density.
  4. A method as claimed in claim 1 or 2, characterized in that the take-off rollers (6a, 6b) are provided with the same direction of rotation (G, H).
  5. A method as claimed in claim 1 or 2, characterized in that the take-off rollers are provided with different directions of rotation (K, L).
  6. A method as claimed in claim 1 or 2, characterized in that as seen in the direction of movement (A, B) of the take-off member the first roller (A: 6a; B: 6b) rotates so-called synchronously with the direction of movement (A: G; B: H).
  7. An apparatus for carrying out the method as claimed in claim 1, with a take-off member (5, 30, 30.1) with at least two rotating take-off rollers (6a, 6b) which are arranged next to one another as seen in the axial direction of the rollers and which are arranged behind one another as seen in the driving direction (A, B) of the take-off member, whereby the take-off member is lowerable by a predefined amount during each fibre-removing passage so as to obtain a respective predefined penetration depth of the take-off rollers (6a, 6b) in the bale surface, characterized in that the rollers (6a, 6b) are arranged so that their position can be changed, namely in such a way that the penetration depth (T.2) of the roller (6b or 6a) which is situated rearwardly as seen in the driving direction is higher than the penetration depth of the roller (6a or 6b) which is situated at the front as seen in the driving direction, with the penetration depth (T.1, T.2) being understood as the amount of the penetration of the respective take-off roller with respect to the bale surface in front of the respective take-off member (Fig. 11).
  8. An apparatus as claimed in claim 7, characterized in that the take-off member (5, 30, 30.1) is arranged swivellably and that the displacement capabilities relating to the position of the rollers (6a, 6b) is carried out by swivelling the take-off member by a predefined amount and that means (33) are provided for swivelling the takeoff member.
  9. An apparatus as claimed in claim 7, characterized in that the take-off member (5, 30, 30.1) is divided per take-off roller into individual partial take-off members (8, 9) which are separately movable upwardly and/or downwardly by a predefined amount by respective means (12, 13, 14, 15) and that the positional displacement capabilities can be carried out by means of the said displaceability of the partial take-off members.
  10. An apparatus for carrying out the method as claimed in the method claim 1, with a take-off member (5, 30, 30.1) with at least two rotating take-off rollers (6a, 6b) which are arranged next to one another as seen in the axial direction of the rollers and which are arranged behind one another as seen in the driving direction of the take-off member, whereby the take-off member is lowerable by a predefined amount during each fibre-removing passage so as to ensure a respective predefined penetration depth (T.1, T.2) of the take-off rollers into the bale surface and that the take-off members are provided with toothed disks (not shown) which are arranged next to one another as seen in the direction of the axis of rotation of the take-off rollers with intermediate spaces (not shown) between the toothed disks and that grate rods (7) are provided in the intermediate spaces which rest on the surface of the fibre bales during the removal of the tufts, characterized in that the rollers (6a, 6b) are arranged positionally changeably with the grate rods (7) so that the penetration depth (T.1) of the rear take-off roller (6b or 6a) as seen in the driving direction (A) and the grate rods is higher than the penetration depth (T.2) of the front roller (6a or 6b) as seen in the driving direction (B), with the penetration depth (T.1; T.2) being understood as the amount of the penetration of the respective take-off roller with respect to the bale surface in front of the respective take-off member.
  11. An apparatus as claimed in claim 10, characterized in that the grate rods (7) are adjustable relative to the rollers (6a, 6b) additionally by own means (51, 52, 53, 54).
  12. An apparatus as claimed in one of the claims 7 to 11 or 17, characterized in that the take-off rollers (6a, 6b) are drivable in the same direction.
  13. An apparatus as claimed in one of the claims 7 to 11 or 17, characterized in that the take-off rollers (6a, 6b) are drivable in the opposite direction.
  14. An apparatus as claimed in one of the claims 12, 13 or 17, characterized in that the first take-off roller (6a), as seen in the driving direction (A) of the take-off member (5, 30, 30.1), is drivable so-called synchronously with the driving direction (A).
  15. An apparatus as claimed in claim 7 or 11 or 17, characterized in that the direction of rotation (G, H) of the take-off rollers (6a, 6b) is reversible.
  16. An apparatus as claimed in claim 7 or 11 or 17, characterized in that the take-off member (5, 30, 30.1) is liftable from the fibre bales (4) for the return passage (B).
  17. An apparatus for carrying out the method as claimed in method claim 2, with a take-off member (5, 30, 30.1) with at least two rotating take-off rollers (6a, 6b) which are arranged next to one another as seen in the axial direction of the rollers and which are arranged behind one another as seen in the driving direction of the take-off member, whereby the take-off member is lowerable by a predefined amount during each fibre-removing passage so as to ensure a respective predefined penetration depth (T.3) of the take-off rollers into the bale surface and that the take-off members are provided with toothed disks (not shown) which are arranged next to one another as seen in the direction of the axis of rotation of the take-off rollers with intermediate spaces (not shown) between the toothed disks and that grate rods (32.1) are provided in the intermediate spaces which rest on the surface of the fibre bales during the removal of the tufts,
    characterized in that the grate rods (32.1) are arranged positionally changeably with respect to the rollers (6a, 6b), this being so in such a way that the grate rods assume with respect to the bale surface an opening angle (B.3 or B.4) as seen in the driving direction (A or B) so that in this manner the toothed disks of the front roller (6a or 6b) as seen in the driving direction penetrate farther between the grate rods than the toothed disks of the rear roller (6b or 6a).
EP89101216A 1988-02-04 1989-01-25 Method and apparatus for removing fibre flocks from fibre balls Expired - Lifetime EP0326913B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH40088 1988-02-04
CH400/88 1988-02-04
IN911MA1988 IN172448B (en) 1988-02-04 1988-12-22

Publications (2)

Publication Number Publication Date
EP0326913A1 EP0326913A1 (en) 1989-08-09
EP0326913B1 true EP0326913B1 (en) 1994-06-29

Family

ID=25684464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101216A Expired - Lifetime EP0326913B1 (en) 1988-02-04 1989-01-25 Method and apparatus for removing fibre flocks from fibre balls

Country Status (7)

Country Link
US (1) US4928354A (en)
EP (1) EP0326913B1 (en)
JP (1) JPH01229824A (en)
AT (1) ATE107972T1 (en)
AU (1) AU608937B2 (en)
DE (1) DE58907968D1 (en)
IN (1) IN172448B (en)

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DE8908276U1 (en) * 1988-08-02 1989-12-14 Truetzschler Gmbh & Co Kg, 4050 Moenchengladbach, De
DE3913929C2 (en) * 1988-08-02 2001-05-31 Truetzschler Gmbh & Co Kg Opening device for opening pressed fiber bales, e.g. B. cotton and rayon bales u. the like
DE59010721D1 (en) * 1989-04-26 1997-07-10 Rieter Ag Maschf Method and device for removing fiber flakes from fiber bales
DE3928835C2 (en) * 1989-08-31 2001-06-21 Truetzschler Gmbh & Co Kg Opening device for opening pressed fiber bales, e.g. B. cotton and rayon bales u. the like
DE3933271A1 (en) * 1989-10-05 1991-04-18 Hollingsworth Gmbh DEVICE FOR OPENING PRESSED FIBER BALLS
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
DE4038091A1 (en) * 1990-11-29 1992-06-04 Rieter Ag Maschf Bale breaking machine with increased tuft capacity - has two driven extractor rollers, which swivel in horizontal axis to release tufts of fibre inside the turret
DE4040197C2 (en) * 1990-12-15 2003-04-24 Truetzschler Gmbh & Co Kg Device for removing fiber flakes from fiber bales arranged in a row, e.g. B. from cotton, man-made fibers or the like.
DE4214658B4 (en) * 1991-08-16 2005-05-12 Trützschler GmbH & Co KG Opener device for removing fiber flakes from fiber bales
US5823677A (en) * 1996-03-18 1998-10-20 The Board Of Trustees Of Western Michigan Method of identifying a substance by infrared imaging
US6524442B2 (en) 1999-12-29 2003-02-25 Kimberly-Clark Worldwide, Inc. Apparatus for forming and metering fluff pulp
US6773545B2 (en) * 2000-12-26 2004-08-10 Kimberly-Clark Worldwide, Inc. Method of forming and metering fluff pulp
CN100422407C (en) * 2006-09-18 2008-10-01 郑州宏大新型纺机有限责任公司 Cotton grasp mechanism adapted for reciprocation bale plucker
CN101311152B (en) * 2007-05-24 2010-12-01 中国科学院大连化学物理研究所 Process and device for directly synthesizing high carbon primary alcohol form CO hydrogenation
IT1396418B1 (en) * 2009-11-16 2012-11-23 Marzoli Spa DEVICE AND METHOD FOR THE AUTOMATIC FIBER FIBER COLLECTION IN A LINE OF SPINNING.
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CN108486693B (en) * 2018-06-09 2019-07-23 长垣虎泰无纺布有限公司 Griping cotton machine
CN114045559B (en) * 2021-11-08 2022-09-27 安徽晟钰纺织科技有限公司 Cotton gin capable of automatically feeding cotton and collecting finished products

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Also Published As

Publication number Publication date
ATE107972T1 (en) 1994-07-15
DE58907968D1 (en) 1994-08-04
JPH01229824A (en) 1989-09-13
IN172448B (en) 1993-08-07
AU608937B2 (en) 1991-04-18
AU2862789A (en) 1989-08-10
US4928354A (en) 1990-05-29
EP0326913A1 (en) 1989-08-09

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