EP0266492B1 - Apparatus for opening compressed bales - Google Patents

Apparatus for opening compressed bales Download PDF

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Publication number
EP0266492B1
EP0266492B1 EP87111156A EP87111156A EP0266492B1 EP 0266492 B1 EP0266492 B1 EP 0266492B1 EP 87111156 A EP87111156 A EP 87111156A EP 87111156 A EP87111156 A EP 87111156A EP 0266492 B1 EP0266492 B1 EP 0266492B1
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EP
European Patent Office
Prior art keywords
opening device
grid bars
grid
roller
approximately
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP87111156A
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German (de)
French (fr)
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EP0266492A1 (en
Inventor
Josef Temburg
Ferdinand Dipl.-Ing. Leifeld
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Truetzschler GmbH and Co KG
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Truetzschler GmbH and Co KG
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Priority claimed from DE3722201A external-priority patent/DE3722201C2/en
Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP0266492A1 publication Critical patent/EP0266492A1/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
    • D01G7/06—Details of apparatus or machines
    • D01G7/12—Framework; Casings; Coverings; Grids

Definitions

  • the invention relates to an opening device for opening pressed fiber bales, for. B. cotton and rayon bales u. Like., According to the preamble of claim 1.
  • the direction of rotation of the opening rollers in the region of the surface of the fiber bale is directed outwards.
  • Each opening roller is assigned its own grate, the open ends of the grate bars facing away from one another, i.e. are directed outwards.
  • the inward grating ends between the opening rollers are mechanically connected to each other by an element, i.e. the inner grate ends are not open.
  • the invention is based on the object of creating a device of the type described which avoids the disadvantages mentioned, in which, in particular, the removal effect is significantly improved and which is structurally simpler.
  • the fact that the end regions of the grids lying opposite one another are open and are not mechanically connected to one another by an element, as in the known case, means that the removal of the fiber flakes takes place freely and without obstruction by an element, so that a blockage of the machine is avoided.
  • the inward direction of rotation of the opening rollers has the advantage that the removed fiber material is brought together and thrown off together into a single suction channel. During this removal through the middle between the opening rollers, the fiber material is advantageously deflected only once.
  • the grate bars of the grates are aligned according to the invention in the direction of movement.
  • the fact that the open end regions of the grate bars protrude upwards at an angle from the surface of the fiber bale has the advantage that the device can travel in two directions, the open end of a grate pointing in the working direction sliding over the bale surface without being undesirable to chop.
  • the grate bars of the grates are preferably arranged offset from one another with respect to the direction of movement of the opening device. This prevents unwanted peaks and furrows in the bale surface in the working direction.
  • the spacing of the offset grate bars transverse to the direction of movement of the opening device is preferably up to approximately 100 mm.
  • the open ends of the grate bars are advantageously arranged to overlap one another.
  • the distance between the ends of the grate bars in an overlapped arrangement is expediently up to approximately 40 mm.
  • the angle between the end regions of the grate bars and the horizontal is preferably approximately 35 ° to 45 ° .
  • the length of the essentially horizontal region of the grate bars preferably corresponds approximately to the diameter of the roller base body.
  • the horizontal area is advantageously about 50 to 70 mm long.
  • the open end area of the grate bars is expediently approximately 60 to 80 mm long.
  • a roller is preferably present between the open ends of the grate bars and cooperates with the surface of the fiber bales. This roller presses on the surface of the fiber bale and thereby exerts a support and retention function. It is avoided that the fiber bales tip over and that the uppermost layers or layers move undesirably. These are recorded on site.
  • the pressure rollers roll driven or running on the surface of the bale. If the pressure rollers are only present between the ends of the grate bars, the outermost boundary line of the grate bars can expediently run on the opposite side close to the milling drum, so that the device can be inserted in the vertical direction into gaps in the row of bales. This is the case when bales of different heights are arranged directly adjacent to one another.
  • the diameter of the pressure roller is preferably approximately 100 to 150 mm.
  • the pressure roller is advantageously to be provided with needles, teeth or the like (star roller). This ensures a safe intervention in the bale surface.
  • the open ends of the grate bars expediently protrude into the gaps between the needles, teeth or the like of the star roller.
  • the grate bars are preferably individually resiliently attached. Each grate is preferably individually resiliently attached.
  • Each grate advantageously consists of zones with several grate bars and each zone is individually cushioned. At least three zones are expediently provided, the shorter outer zones (peripheral zones) and the inner zone cushioned differently hard.
  • a suction device for the detached fiber flakes is preferably provided above the open ends of the grate bars.
  • the grates are assigned at least two pressure or retention rollers which engage with the surface of the fiber bale, the pressure or retention rollers are in each case on the sides of the gratings facing away from the open grate ends ( Outsides) arranged.
  • the fiber bales 1 are set up freely in a fixed bale display.
  • a horizontally reciprocating carriage runs on rails (not shown) to which a vertically adjustable removal device is attached, which consists of a housing 2, two grate halves 3, 4, two milling drums 5, 6 (opening rollers) and a suction device 7.
  • the removal device moves in the direction shown by arrows A and B.
  • the grids 3, 4 engage in the lanes between the teeth 5a, 6a below the milling drum 5, 6 (see FIG. 2).
  • the gratings 3, 4 lie on the surface la of the fiber bales 1, whereby hold-down devices are formed.
  • pressure rollers 8a, 8b back-up or retention drums
  • the fiber bales 1 are held stationary and secured against shifting and tipping over.
  • the layers or layers of the fiber bale 1 are secured against horizontal tearing away by the opening rollers or pushing away through the grids 3, 4.
  • the direction of rotation of the milling drums 5, 6, which is denoted by arrows C and D, is directed inward in the region of the surface 1a of the fiber bale 1.
  • the flake suction device 7 is arranged above the milling drums 5, 6.
  • the removal device moves back and forth with the milling drums 5, 6 above the freely installed fiber bales 1, the teeth 5a, 6a of the milling drums 5, 6 reaching through the gaps between the grids 3 and 4, respectively.
  • the fiber flakes detached from the surface 1 a of the fiber bales 1 are thrown inwards by the milling drums 5, 6. They go directly into the air flow 9 and are sucked off into the channel of the flake suction device 7.
  • the grids 3, 4 are formed from a plurality of grate bars or grate bars (3a to 3c; 4a to 4c; see FIG. 2).
  • Each grate bar consists essentially of three areas: a first end 3 '; 4 ', a central area 3 "; 4" and a second end 3, 3'; 4 "'.
  • the first ends 3', 4 ' protrude from the surface 1a at an angle ⁇ , the central regions 3", 4 "lie essentially horizontally on the surface 1a, the second ends 3"', 4 "
  • the ends 3 ', 4' are open at the ends 3 "', 4"', the grate bars are fastened to holding elements 10a, 10b.
  • Each opening roller 5, 6 is a grate of its own 3 and 4 assigned, the open ends 3 ', 4' of the grate bars 3a to 3c; 4a to 4c facing each other.
  • the milling drums 5, 6 are shown schematically between the grate bars 3a to 3c and 4a to 4c, the area of their action on the surface 1a being drawn in dash-dot lines during their rotation.
  • the grate bars 3a to 3c and 4a to 4c are arranged offset to one another in the lateral direction. As a result, the furrow formed by a grate bar on the bale surface 1 a can be worked off by a milling drum 5 or 6 opposite in the working direction.
  • the outer ends 3 "', 4"' of the grate bars 3a to 3c and 4a to 4c are fastened to a common holding element 10a or 10b, which is attached to the side walls 13 (14 not shown) of the housing 2.
  • the external ends 3 ", 4" 'of the grids 3, 4 are at a distance from the milling drums 5, 6.
  • the distance a, the offset grate bars 3a to 3c or 4a to 4c transverse to the direction of movement A, B of the opening device is approximately 100 mm.
  • the distance b between the ends 3 ', 4' of the grate bars 3a to 3c or 4a to 4c in an overlapped arrangement is approximately 40 mm.
  • the open ends 3 ', 4' of the grate bars 3a and 4a are arranged to overlap one another.
  • the distance between the overlap and the bale surface 1a is denoted by c.
  • the angle between the central horizontal area 3 "of the grate bar 3a and the end area 3 ' is designated by a.
  • the angle between the horizontal area 4" of the grate bar 4a or the bale surface 1a and the open end area 4' corresponds to the same angle a.
  • Fig. 4 shows the resilient suspension of the grate 3.
  • the grate 4 is suspended in the same way.
  • the grate bars 3a, 3b, 3c are attached to the holding element 10a, which is resiliently attached to a support element 12 via springs 11a, 11b is.
  • the grate bars 3a to 3c form an outer zone 1, which is followed by a middle zone II. Zone II can be cushioned differently from Zone I.
  • a pressure roller 8c provided with teeth 8 ' is present between the open ends 3', 4 'of the grate bars 3a, 4a.
  • the outermost boundary line of the grate bars 3a, 4a in the area of second end 3 "or 4" runs near the milling drum 5 or 6 so that the Vorrich device in the vertical 'direction in gaps between the bales 1 of a row of bales can be retracted. The corners between adjacent bales 1 can be worked off.
  • FIG. 6 shows an embodiment in which there are two external pressure rollers 8a, 8b and an internal pressure roller 8b.
  • the pressure or retention rollers 8a to 8c have the advantageous effect that both the layers or layers of the fiber bale 1 and the entire fiber bale 1 are not shifted in an undesirable manner.
  • Each opening roller 5, 6 is assigned its own grate 3, 4.
  • a separate grate 3, 4 is to be understood that the grids 3 and 4 are independent of one another, i. that is, between the open, facing (opposite) ends 3 ', 4' of the grate bars 3a to 3c; 4 a to 4c, there is a gap e (in the longitudinal direction) and / or f (in the transverse direction).
  • the open, facing grate ends 3 ', 4' are not mechanically connected to each other.

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

Description

Die Erfindung betrifft eine Öffnungsvorrichtung zum Öffnen von gepreßten Faserballen, z. B. Baumwoll- und Zellwollballen u. dgl., nach dem Oberbegriff des Anspruchs 1.The invention relates to an opening device for opening pressed fiber bales, for. B. cotton and rayon bales u. Like., According to the preamble of claim 1.

Bei einer bekannten Vorrichtung (DE-A 3 334 069) sind zwei Öffnerwalzen vorhanden, wobei die Roststäbe quer zur Bewegungsrichtung der Öffnungsvorrichtung in ihrem Verlauf einen Versatz aufweisen, wobei mindestens eine Öffnerscheibe vor und hinter dem Versatz angeordnet ist. Bei dieser Vorrichtung stört, daß die Krafteinwirkung des Versatzes auf die Oberfläche eine Komponente aufweist, die von der Bewegungsrichtung (Arbeitsrichtung) der Vorrichtung abweicht.In a known device (DE-A 3 334 069) there are two opening rollers, the grate bars having an offset transversely to the direction of movement of the opening device, at least one opening disk being arranged in front of and behind the offset. In this device it is disturbing that the force of the offset on the surface has a component that deviates from the direction of movement (working direction) of the device.

Bei einer aus der FR-A 2 577 244 bekannten Öffnungsvorrichtung ist die Drehrichtung der Öffnerwalzen im Bereich der Oberfläche der Faserballen nach außen gerichtet. Jeder Öffnerwalze ist ein eigener Rost zugeordnet, wobei die offenen Enden der Roststäbe einander abgewandt, d.h. nach außen gerichtet sind. Die zwischen den Öffnerwalzen liegenden, nach innen gerichteten Rostenden sind durch ein Element mechanisch miteinander verbunden, d.h. die innenliegenden Rostenden sind nicht offen. Bei dieser Öffnungsvorrichtung muß das abgelöste Fasermaterial in zwei getrennte, außenliegende Absaugkanäle geschleudert werden, was konstruktiv aufwendig ist. Die Abtragwirkung der Vorrichtung ist dadurch beeinträchtigt, daß das abgelöste Fasermaterial auf dem Weg von der Ballenoberfläche bis zum gemeinsamen oberen Absaugstutzen zweimal in seiner Richtung umgelenkt werden mu ß.In an opening device known from FR-A 2 577 244, the direction of rotation of the opening rollers in the region of the surface of the fiber bale is directed outwards. Each opening roller is assigned its own grate, the open ends of the grate bars facing away from one another, i.e. are directed outwards. The inward grating ends between the opening rollers are mechanically connected to each other by an element, i.e. the inner grate ends are not open. With this opening device, the detached fiber material has to be thrown into two separate, external suction channels, which is structurally complex. The removal effect of the device is impaired by the fact that the detached fiber material has to be redirected twice in its direction on the way from the bale surface to the common upper suction nozzle.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, eine Vorrichtung der beschriebenen Art zu schaffen, die die genannten Nachteile vermeidet, bei der insbesondere die Abtragwirkung wesentlich verbessert und die konstruktiv einfacher aufgebaut ist.In contrast, the invention is based on the object of creating a device of the type described which avoids the disadvantages mentioned, in which, in particular, the removal effect is significantly improved and which is structurally simpler.

Die Lösung dieser Aufgabe erfolgt durch die kennzeichnenden Merkmale des Anspruchs 1.This object is achieved by the characterizing features of claim 1.

Dadurch, daß die Endbereiche der einander gegenüberliegenden Roste offen und nicht wie im bekannten Fall miteinander mechanisch durch ein Element verbunden sind, wird erreicht, daß die Abtragung der Faserflocken frei und ohne Behinderung durch ein Element erfolgt, so daß eine Verstopfung der Maschine vermieden wird. Die nach innen gerichtete Drehrichtung der Öffnerwalzen hat den Vorteil, daß das abgetragene Fasermaterial zusammengeführt und gemeinsam in einen einzigen Absaugkanal abgeschleudert wird. Bei dieser Abtragung durch die Mitte zwischen die Öffnerwalzen wird das Fasermaterial in vorteilhafter Weise nur einmal umgelenkt.The fact that the end regions of the grids lying opposite one another are open and are not mechanically connected to one another by an element, as in the known case, means that the removal of the fiber flakes takes place freely and without obstruction by an element, so that a blockage of the machine is avoided. The inward direction of rotation of the opening rollers has the advantage that the removed fiber material is brought together and thrown off together into a single suction channel. During this removal through the middle between the opening rollers, the fiber material is advantageously deflected only once.

Die Roststäbe der Roste sind nach der Erfindung in Bewegungsrichtung ausgerichtet. Dadurch, daß die Endbereiche der einander gegenüberliegenden Roste offen und nicht wie im bekannten Fall miteinander durch einen schräg Versatz verbunden sind, wird vermieden, daß eine Krafteinwirkung auf die Oberfläche abweichend von der Bewegungsrichtung eintritt. Das die offenen Endbereiche der Roststäbe unter einem Winkel von der Oberfläche der Faserballen nach oben abstehen, hat den Vorteil, daß die Vorrichtung in zwei Richtungen fahren kann, wobei das jeweils in Arbeitsrichtung weisende offene Ende eines Rostes über die Ballenoberfläche gleitet, ohne in diese unerwünscht einzuhacken.The grate bars of the grates are aligned according to the invention in the direction of movement. The fact that the end regions of the grids lying opposite one another are open and are not connected to one another by an oblique offset, as in the known case, prevents a force acting on the surface deviating from the direction of movement. The fact that the open end regions of the grate bars protrude upwards at an angle from the surface of the fiber bale has the advantage that the device can travel in two directions, the open end of a grate pointing in the working direction sliding over the bale surface without being undesirable to chop.

Vorzugsweise sind die Roststäbe der Roste in bezug auf die Bewegungsrichtung der Öffnungsvorrichtung versetzt zueinander angeordnet. Dadurch werden unerwünschte Berge und Furchen in der Ballenoberfläche in Arbeitsrichtung vermieden. Bevorzugt beträgt der Abstand der versetzten Roststäbe quer zur Bewegungsrichtung der Öffnungsvorrichtung bis etwa 100 mm. Vorteilhaft sind die offenen Enden der Roststäbe einander gegenseitig überlappend angeordnet. Zweckmäßig beträgt der Abstand der Enden der Roststäbe in überlappter Anordnung bis etwa 40 mm. Vorzugsweise beträgt der Winkel zwischen den Endbereichen der Roststäbe und der Horizontalen ca. 35° bis 45°. Bevorzugt entspricht die Länge des im wesentlichen horizontalen Bereichs der Roststäbe etwa den Durchmesser des Walzengrundkörpers. Das ist der Außendurchmesser (Schlagkreis) der Öffnerwalze abzüglich der Höhe der Zähne. Vorteilhaft ist der horizontale Bereich ca. 50 bis 70 mm lang. Zweckmäßig ist der offene Endbereich der Roststäbe ca. 60 bis 80 mm lang. Vorzugsweise ist zwischen den offenen Enden der Roststäbe eine Walze vorhanden, die mit der Oberfläche der Faserballen zusammenwirkt. Diese Walze drückt auf die Oberfläche der Faserballen auf und übt dadurch eine Stütz- und Rückhaltefunktion aus. Es wird vermieden, daß die Faserballen umkippen und daß die obersten Lagen bzw. Schichten unerwünscht verschieben. Diese werden am Ort festgehalten. Insbesondere bei den letzten Resten, die am Ende der Abarbeitung des Ballens am Boden zurückbleiben, wird vermieden, daß dickere Restschichten von den Öffnerwalzen eingezogen (mitgerissen) werden, so daß sich die Vorrichtung "nicht verschlucken" kann. Die Andruckwalzen rollen angetrieben oder mitlaufend auf der Ballenoberfläche ab. Sofern die Andruckwalzen nur zwischen den Enden der Roststäbe vorhanden sind, kann zweckmäßig die äußerste Begrenzungslinie der Roststäbe auf der entgegengesetzte Seite nahe an der Fräswalze verlaufen, so daß die Vorrichtung in senkrechter Richtung in Lücken der Ballenreihe eingefahren werden kann. Das ist dann der Fall, wenn unterschiedlich hohe Ballen unmittelbar aneinander angrenzend angeordnet sind. Bevorzugt beträgt der Durchmesser der Andruckwalze ca. 100 bis 150 mm. Vorteilhaft ist die Andruckwalze mit Nadeln, Zähnen o. dgl. (Sternwalze) zu versehen. Dadurch wird ein sicherer Eingriff in die Ballenoberfläche erreicht. Zweckmäßig ragen die offenen Enden der Roststäbe in die Lücken zwischen den Nadeln, Zähnen o. dgl. der Sternwalze. Vorzugsweise sind die Roststäbe einzeln federnd befestigt. Bevorzugt ist jeder Rost einzeln federnd befestigt. Vorteilhaft besteht jeder Rost aus Zonen mit jeweils mehreren Roststäben und jede Zone ist einzeln abgefedert. Zweckmäßig sind mindestens drei Zonen vorgesehen, wobei die kürzeren äußeren Zonen (Randzonen) und die innenliegende Zone unterschiedlich hart abgefedert sind. Vorzugsweise ist oberhalb der offenen Enden der Roststäbe eine Absaugeinrichtung für die abgelösten Faserflocken vorhanden. Nach einer weiteren bevorzugten Ausführungsform einer Öffnungsvorrichtung, bei der den Rosten mindestens zwei Andruck- bzw. Rückhaltewalzen zugeordnet sind, die mit der Oberfläche der Faserballen in Eingriff stehen, sind die Andruck- bzw. Rückhaltewalzen jeweils auf den den offenen Rostenden abgewandten Seiten der Roste (Außenseiten) angeordnet.The grate bars of the grates are preferably arranged offset from one another with respect to the direction of movement of the opening device. This prevents unwanted peaks and furrows in the bale surface in the working direction. The spacing of the offset grate bars transverse to the direction of movement of the opening device is preferably up to approximately 100 mm. The open ends of the grate bars are advantageously arranged to overlap one another. The distance between the ends of the grate bars in an overlapped arrangement is expediently up to approximately 40 mm. The angle between the end regions of the grate bars and the horizontal is preferably approximately 35 ° to 45 ° . The length of the essentially horizontal region of the grate bars preferably corresponds approximately to the diameter of the roller base body. This is the outside diameter (impact circle) of the opening roller minus the height of the teeth. The horizontal area is advantageously about 50 to 70 mm long. The open end area of the grate bars is expediently approximately 60 to 80 mm long. A roller is preferably present between the open ends of the grate bars and cooperates with the surface of the fiber bales. This roller presses on the surface of the fiber bale and thereby exerts a support and retention function. It is avoided that the fiber bales tip over and that the uppermost layers or layers move undesirably. These are recorded on site. Particularly in the case of the last residues which remain on the ground at the end of the processing of the bale, it is avoided that thicker residual layers are drawn in (entrained) by the opening rollers, so that the device cannot "choke". The pressure rollers roll driven or running on the surface of the bale. If the pressure rollers are only present between the ends of the grate bars, the outermost boundary line of the grate bars can expediently run on the opposite side close to the milling drum, so that the device can be inserted in the vertical direction into gaps in the row of bales. This is the case when bales of different heights are arranged directly adjacent to one another. The diameter of the pressure roller is preferably approximately 100 to 150 mm. The pressure roller is advantageously to be provided with needles, teeth or the like (star roller). This ensures a safe intervention in the bale surface. The open ends of the grate bars expediently protrude into the gaps between the needles, teeth or the like of the star roller. The grate bars are preferably individually resiliently attached. Each grate is preferably individually resiliently attached. Each grate advantageously consists of zones with several grate bars and each zone is individually cushioned. At least three zones are expediently provided, the shorter outer zones (peripheral zones) and the inner zone cushioned differently hard. A suction device for the detached fiber flakes is preferably provided above the open ends of the grate bars. According to a further preferred embodiment of an opening device, in which the grates are assigned at least two pressure or retention rollers which engage with the surface of the fiber bale, the pressure or retention rollers are in each case on the sides of the gratings facing away from the open grate ends ( Outsides) arranged.

Die Erfindung wird nachfolgend anhand von zeichnerisch dargestellten Ausführungsbeispielen näher erläutert.The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawings.

Es zeigt:

  • Fig. 1 schematisch Seitenansicht der erfindungsgemäßen Vorrichtung,
  • Fig. 2 Draufsicht auf die Vorrichtung nach Fig. 1 mit überlappenden Rostenden,
  • Fig. 3 Seitenansicht der überlappenden Rostenden,
  • Fig. 4 federnde Abstützung mehrerer Roststäbe,
  • Fig. 5 eine Ausführungsform mit innenliegender Andruckwalze zwischen den offenen Rostenden und
  • Fig. 6 eine Ausführungsform wie Fig. 5 mit zwei zusätzlichen außenliegenden Andruckwalzen.
It shows:
  • 1 shows a schematic side view of the device according to the invention,
  • 2 top view of the device of FIG. 1 with overlapping grate ends,
  • 3 side view of the overlapping grate ends,
  • 4 resilient support of several grate bars,
  • Fig. 5 shows an embodiment with an internal pressure roller between the open grate ends and
  • Fig. 6 shows an embodiment like FIG. 5 with two additional external pressure rollers.

Nach Fig. 1 sind die Faserballen 1 in einer feststehenden Ballenschau frei aufgestellt. Auf (nicht dargestellten) Schienen läuft ein horizontal hin- und herbeweglicher Wagen, an dem eine vertikal einstellbare Abnahmeeinrichtung angebracht ist, die aus einem Gehäuse 2, zwei Rosthälften 3, 4, zwei Fräswalzen 5, 6 (Öffnerwalzen) und einer Absaugeinrichtung 7 besteht. Die Abnahmeeinrichtung bewegt sich in der durch die Pfeile A und B gezeigten Richtung fort. Die Roste 3, 4 greifen in die Gassen zwischen den Zähnen 5a, 6a unterhalb der Fräswalze 5, 6 ein (s. Fig. 2). Die Roste 3, 4 liegen dabei auf der Oberfläche la der Faserballen 1 auf, wodurch Niederhalter gebildet sind. Vor und hinter den Fräswalzen 5, 6 sind achsparallel Andruckwalzen 8a, 8b (Stütz- bzw. Rückhaltewalzen) vorgesehen, die auf die Oberfläche la der Faserballen 1 drücken. Dadurch und durch den Eingriff der Zähne 8' der Andrückwalzen 8a, 8b werden die Faserballen 1 ortsfest gehalten und gegen Verschieben und Umkippen gesichert. Außerdem werden die Schichten bzw. Lagen der Faserballen 1 gegen horizontales Wegreißen durch die Öffnerwalzen bzw. Wegschieben durch die Roste 3, 4 gesichert. Die Drehrichtung der Fräswalzen 5, 6, die durch Pfeile C bzw. D bezeichnet ist, ist im Bereich der Oberfläche 1a der Faserballen 1 nach innen gerichtet. Die Flockenabsaugeinrichtung 7 ist oberhalb der Fräswalzen 5, 6 angeordnet. Im Betrieb fährt die Abnahmeeinrichtung mit den Fräswalzen 5, 6 oberhalb der frei aufgestellten Faserballen 1 hin und her, wobei die Zähne 5a, 6a der Fräswalzen 5, 6 durch die Lücken zwischen den Rosten 3 bzw. 4 hindurchreichen. Die aus der Oberfläche 1 a der Faserballen 1 abgelösten Faserflocken werden von den Fräswalzen 5, 6 nach innen weggeschleudert. Sie gelangen unmittelbar in den Luftstrom 9 und werden in den Kanal der Flockenabsaugeinrichtung 7 abgesaugt.1, the fiber bales 1 are set up freely in a fixed bale display. A horizontally reciprocating carriage runs on rails (not shown) to which a vertically adjustable removal device is attached, which consists of a housing 2, two grate halves 3, 4, two milling drums 5, 6 (opening rollers) and a suction device 7. The removal device moves in the direction shown by arrows A and B. The grids 3, 4 engage in the lanes between the teeth 5a, 6a below the milling drum 5, 6 (see FIG. 2). The gratings 3, 4 lie on the surface la of the fiber bales 1, whereby hold-down devices are formed. In front of and behind the milling drums 5, 6, pressure rollers 8a, 8b (back-up or retention drums) are provided, which press on the surface la of the fiber bales 1. As a result, and due to the engagement of the teeth 8 'of the pressure rollers 8a, 8b, the fiber bales 1 are held stationary and secured against shifting and tipping over. In addition, the layers or layers of the fiber bale 1 are secured against horizontal tearing away by the opening rollers or pushing away through the grids 3, 4. The direction of rotation of the milling drums 5, 6, which is denoted by arrows C and D, is directed inward in the region of the surface 1a of the fiber bale 1. The flake suction device 7 is arranged above the milling drums 5, 6. In operation, the removal device moves back and forth with the milling drums 5, 6 above the freely installed fiber bales 1, the teeth 5a, 6a of the milling drums 5, 6 reaching through the gaps between the grids 3 and 4, respectively. The fiber flakes detached from the surface 1 a of the fiber bales 1 are thrown inwards by the milling drums 5, 6. They go directly into the air flow 9 and are sucked off into the channel of the flake suction device 7.

Die Roste 3, 4 sind aus mehreren Roststäben bzw. Roststangen (3a bis 3c; 4a bis 4c; s. Fig. 2) gebildet. Jeder Roststab besteht im wesentlichen aus drei Bereichen: einem ersten Ende 3'; 4' , einem mittleren Bereich 3"; 4" und einem zweiten Ende 3, 3'; 4"'. Die ersten Enden 3', 4' stehen unter einem Winkel α von der Oberfläche 1a ab, die mittleren Bereiche 3", 4" liegen im wesentlichen waagerecht auf der Oberfläche 1a auf, die zweiten Enden 3"', 4"' stehen unter einem Winkel von der Oberfläche 1a ab. Die Enden 3', 4' sind offen; an den Enden 3"', 4"' sind die Roststäbe an Halteelementen 10a, 10b befestigt. Jeder Öffnerwalze 5, 6 ist ein eigener Rost 3 bzw. 4 zugeordnet, wobei die offenen Enden 3', 4' der Roststäbe 3a bis 3c; 4a bis 4c einander zugewandt sind.The grids 3, 4 are formed from a plurality of grate bars or grate bars (3a to 3c; 4a to 4c; see FIG. 2). Each grate bar consists essentially of three areas: a first end 3 '; 4 ', a central area 3 "; 4" and a second end 3, 3'; 4 "'. The first ends 3', 4 'protrude from the surface 1a at an angle α, the central regions 3", 4 "lie essentially horizontally on the surface 1a, the second ends 3"', 4 " The ends 3 ', 4' are open at the ends 3 "', 4"', the grate bars are fastened to holding elements 10a, 10b. Each opening roller 5, 6 is a grate of its own 3 and 4 assigned, the open ends 3 ', 4' of the grate bars 3a to 3c; 4a to 4c facing each other.

Fig. 2 zeigt Roststangen 3a bis 3c und 4a bis 4c der Rosthälften 3 bzw. 4, die sich parallel zueinander über die Breite der Oberfläche 1a der Faserballen 1 erstrecken. Zwischen den Roststangen 3a bis 3c und 4a bis 4c sind schematisch die Fräswalzen 5, 6 gezeigt, wobei der Bereich ihrer Einwirkung auf die Oberfläche 1a während ihrer Rotation strichpunktiert gezeichnet ist. Die Roststangen 3a bis 3c und 4a bis 4c sind in seitlicher Richtung versetzt zueinander angeordnet. Dadurch kann die durch eine Roststange auf der Ballenoberfläche 1 a gebildete Furche durch eine in Arbeitsrichtung gegenüberliegende Fräswalze 5 bzw. 6 abgearbeitet werden. Die außenliegenden Enden 3"', 4"'der Roststangen 3a bis 3c und 4a bis 4c sind an einem gemeinsamen Halteelemente 10a bzw. 10b befestigt, das an den Seitenwänden 13 (14 nicht dargestellt) des Gehäuses 2 angebracht ist. Die außenbefindlichen Enden 3", 4"'der Roste 3, 4 haben einen Abstand zu den Fräswalzen 5, 6. Der Abstand a, der versetzten Roststäbe 3a bis 3c bzw. 4a bis 4c quer zur Bewegungsrichtung A, B der Öffnungsvorrichtung beträgt etwa 100 mm. Der Abstand b der Enden 3', 4' der Roststäbe 3a bis 3c bzw. 4a bis 4c in überlappter Anordnung beträgt etwa 40 mm.2 shows grate bars 3a to 3c and 4a to 4c of the grate halves 3 and 4, respectively, which extend parallel to one another over the width of the surface 1a of the fiber bale 1. The milling drums 5, 6 are shown schematically between the grate bars 3a to 3c and 4a to 4c, the area of their action on the surface 1a being drawn in dash-dot lines during their rotation. The grate bars 3a to 3c and 4a to 4c are arranged offset to one another in the lateral direction. As a result, the furrow formed by a grate bar on the bale surface 1 a can be worked off by a milling drum 5 or 6 opposite in the working direction. The outer ends 3 "', 4"' of the grate bars 3a to 3c and 4a to 4c are fastened to a common holding element 10a or 10b, which is attached to the side walls 13 (14 not shown) of the housing 2. The external ends 3 ", 4" 'of the grids 3, 4 are at a distance from the milling drums 5, 6. The distance a, the offset grate bars 3a to 3c or 4a to 4c transverse to the direction of movement A, B of the opening device is approximately 100 mm. The distance b between the ends 3 ', 4' of the grate bars 3a to 3c or 4a to 4c in an overlapped arrangement is approximately 40 mm.

Nach Fig. 3 sind die offenen Enden 3', 4' der Roststäbe 3a bzw. 4a einander überlappend angeordnet. Der Abstand zwischen der Überlappung und der Ballenoberfläche 1a ist mit c bezeichnet. Der Winkel zwischen dem mittleren waagerechten Bereich 3" des Roststabes 3a und dem Endbereich 3' ist mit a bezeichnet. Der Winkel zwischen dem horizontalen Bereich 4" des Roststabes 4a bzw. der Ballenoberfläche 1a und dem offenen Endbereich 4' entspricht dem gleichen Winkel a.3, the open ends 3 ', 4' of the grate bars 3a and 4a are arranged to overlap one another. The distance between the overlap and the bale surface 1a is denoted by c. The angle between the central horizontal area 3 "of the grate bar 3a and the end area 3 'is designated by a. The angle between the horizontal area 4" of the grate bar 4a or the bale surface 1a and the open end area 4' corresponds to the same angle a.

Fig. 4 zeigt die federnde Aufhängung des Rostes 3. (Der Rost 4 ist in gleicher Weise aufgehängt.) Die Roststangen 3a, 3b, 3c sind an dem Halteelement 10a befestigt, das über Federn 11 a, 11 b an einem Tragelement 12 federnd befestigt ist. Die Roststangen 3a bis 3c bilden eine äußere Zone 1, an die sich eine mittlere Zone II anschließt. Die Zone II kann unterschiedlich zur Zone I abgefedert sein.Fig. 4 shows the resilient suspension of the grate 3. (The grate 4 is suspended in the same way.) The grate bars 3a, 3b, 3c are attached to the holding element 10a, which is resiliently attached to a support element 12 via springs 11a, 11b is. The grate bars 3a to 3c form an outer zone 1, which is followed by a middle zone II. Zone II can be cushioned differently from Zone I.

Nach Fig. 5 ist zwischen den offenen Enden 3', 4' der Roststäbe 3a, 4a eine mit Zähnen 8' versehene Andrückwalze 8c vorhanden. Die äußerste Begrenzungslinie der Roststäbe 3a, 4a im Bereich des zweiten Endes 3" bzw. 4" verläuft nahe der Fräswalze 5 bzw. 6 so daß die Vorrich tung in senkrechter' Richtung in Lücken zwischen den Ballen 1 einer Ballenreihe eingefahren werden kann. Die Ecken zwischen benachbarten Ballen 1 können abgearbeitet werden.According to FIG. 5, a pressure roller 8c provided with teeth 8 'is present between the open ends 3', 4 'of the grate bars 3a, 4a. The outermost boundary line of the grate bars 3a, 4a in the area of second end 3 "or 4" runs near the milling drum 5 or 6 so that the Vorrich device in the vertical 'direction in gaps between the bales 1 of a row of bales can be retracted. The corners between adjacent bales 1 can be worked off.

Fig. 6 zeigt eine Ausführungsform, bei der zwei außenliegende Andruckwalzen 8a, 8b und eine innenliegende Andruckwalze 8b vorhanden sind. Die Andruck- bzw. Rückhaltewalzen 8a bis 8c haben die vorteilhafte Wirkung, daß sowohl die Schichten bzw. Lagen der Faserballen 1 als auch die ganzen Faserballen 1 nicht in unerwünschter Weise verschoben werden.FIG. 6 shows an embodiment in which there are two external pressure rollers 8a, 8b and an internal pressure roller 8b. The pressure or retention rollers 8a to 8c have the advantageous effect that both the layers or layers of the fiber bale 1 and the entire fiber bale 1 are not shifted in an undesirable manner.

Jeder Öffnerwalze 5, 6 ist ein eigener Rost 3, 4 zugeordnet. Unter einem eigenen Rost 3, 4 ist zu verstehen, daß die Roste 3 bzw. 4 unabhängig voneinander sind, d. h., daß zwischen den offenen, einander zugewandten (gegenüberliegenden) Enden 3', 4' der Roststäbe 3a bis 3c; 4 a bis 4c, jeweils eine Lücke e (in Längsrichtung) und/oder f (in Querrichtung) vorhanden ist. Die offenen, einander zugewandten Rostenden 3', 4' sind mechanisch nicht miteinander verbunden.Each opening roller 5, 6 is assigned its own grate 3, 4. A separate grate 3, 4 is to be understood that the grids 3 and 4 are independent of one another, i. that is, between the open, facing (opposite) ends 3 ', 4' of the grate bars 3a to 3c; 4 a to 4c, there is a gap e (in the longitudinal direction) and / or f (in the transverse direction). The open, facing grate ends 3 ', 4' are not mechanically connected to each other.

Claims (20)

1. Opening device for opening compressed fibre bales, for example cotton and rayon staple bales and the like, in which high-speed opener rollers containing opener discs or needles are provided and engage with a grid the grid bars of which lie between the opener discs, for example toothed discs, or needles; the opening device and the fibre bales touching one another, and the teeth of the opener discs, or the needles, cutting into the fibre bales, and in which each opener roller has its own associated grid and the open end regions of the grid bars project from the surface of the fibre bales at an angle (a), characterised in that the open ends (3', 4') of the grid bars (3a to 3c; 4a to 4c) face one another and are not connected to one another mechanically, and in that the direction of rotation (C, D) of the opener roller (5, 6) is directed inwards in the region of the surface (1 a) of the fibre bales (1).
2. Opening device according to claim 1, characterised in that the grid bars (3a to 3c; 4a to 4c) of the grids (3, 4) are staggered relative to one another with respect to the direction of movement (A, B) of the opening device.
3. Opening device according to claims 1 and 2, characterised in that the distance (a) between the staggered grid bars (3a to 3c; 4a to 4c) transversely to the direction of movement (A, B) of the opening device is up to approximately 100 mm.
4. Opening device according to any one of claims 1 to 3, characterised in that the open ends (3', 4') of the grid bars (3a to 3c; 4a to 4c) are arranged to overlap one another.
5. Opening device according to any one of claims 1 to 4, characterised in that the distance (b) between the ends (3', 4') of the grid bars (3a to 3c; 4a to 4c) when arranged to overlap is up to approximately 40 mm.
6. Opening device according to any one of claims 1 to 5, characterised in that the angle (a) between the end regions (3', 4') of the grid bars (3a to 3c; 4a to 4c) and the horizontal is approximately from 35 to 45°.
7. Opening device according to any one of claims 1 to 6, characterised in that the length of the substantially horizontal region (3", 4") of the grid bars (3a to 3c; 4a to 4c) corresponds approximately to the diameter (d) of the main body (5b, 6b) of the opener roller (5, 6).
8. Opening device according to any one of claims 1 to 7, characterised in that the horizontal region (3", 4") is approximately from 50 to 70 mm long.
9. Opening device according to any one of claims 1 to 8, characterised in that the open end region (3', 4') of the grid bars (3a to 3c; 4a to 4c) is approximately from 60 to 80 mm long.
10. Opening device according to any one of claims 1 to 9, characterised in that, between the open ends (3', 4') of the grid bars (3a to 3c; 4a to 4c) there is a roller (8Q) which cooperates with the surface (1a) of the fibre bales (1).
11. Opening device according to any one of claims 1 to 10, characterised in that the diameter of the roller (8Q) is approximately from 100 to 150 mm.
12. Opening device according to any one of claims 1 to 11, characterised in that the roller is provided with needles, teeth (8') or the like (star roller).
13. Opening device according to any one of claims 1 to 12, characterised in that the open ends (3', 4') of the grid bars (3a to 3c; 4a to 4c) project into the gaps between the needles, teeth (8') or the like of the star roller (8c).
14. Opening device according to any one of claims 1 to 13, characterised in that the grid bars (3a to 3c; 4a to 4c) are individually resiliently mounted.
15. Opening device according to any one of claims 1 to 14, characterised in that each grid (3, 4) is individually resiliently mounted.
16. Opening device according to any one of claims 1 to 15, characterised in that each grid (3) consists of zones (I, II) each having several grid bars (3a to 3c; 3d), and each zone (I, II) is individually spring-mounted (11 a, 11b).
17. Opening device according to any one of claims 1 to 16, characterised in that at least three zones (I to II) are provided, the shorter outer zones (I) (edge zones) and the inner zone (II) being mounted by means of springs having different stiffnesses.
18. Opening device according to any one of claims 1 to 17, characterised in that, above the open ends (3', 4') of the grid bars (3a to 3c; 4a to 4c), there is a device (7) for sucking off the detached fibre flocks.
19. Opening device in which at least two pressing or retaining rollers, which are in contact with the surface of the fibre bales, are associated with the grids, according to any one of claims 1 to 18, characterised in that the pressing or retaining rollers (8a, 8b) are arranged on the sides (3"', 4"') of the grids (3, 4) that are remote from the open grid ends (3', 4') (outer sides).
20. Opening device according to any one of claims 1 to 19, characterised in that there is in each case a gap (e, f) between the open ends (3', 4'), which face one another, of the grid bars (3a to 3c; 4a to 4c).
EP87111156A 1986-10-11 1987-08-01 Apparatus for opening compressed bales Expired - Lifetime EP0266492B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3634709 1986-10-11
DE3634709 1986-10-11
DE3722201A DE3722201C2 (en) 1986-10-11 1987-07-04 Opening device for opening pressed fiber bales
DE3722201 1987-07-04

Publications (2)

Publication Number Publication Date
EP0266492A1 EP0266492A1 (en) 1988-05-11
EP0266492B1 true EP0266492B1 (en) 1990-10-10

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ID=25848375

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EP87111156A Expired - Lifetime EP0266492B1 (en) 1986-10-11 1987-08-01 Apparatus for opening compressed bales

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US (1) US4748725A (en)
EP (1) EP0266492B1 (en)
JP (1) JP2667668B2 (en)
AT (1) AT395725B (en)
BE (1) BE1000212A3 (en)
BR (1) BR8705425A (en)
CA (1) CA1308534C (en)
CH (1) CH673847A5 (en)
ES (1) ES2005389A6 (en)
FR (1) FR2605020B1 (en)
GB (1) GB2197665B (en)
GR (1) GR871441B (en)
HK (1) HK145595A (en)
IN (1) IN168179B (en)
IT (1) IT1228418B (en)
MX (1) MX160030A (en)
NL (1) NL192119C (en)
YU (1) YU173887A (en)

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Publication number Priority date Publication date Assignee Title
DE3706268C3 (en) * 1987-02-26 1995-02-09 Rieter Ingolstadt Spinnerei Device for processing bales of fiber
DE3820427A1 (en) * 1988-06-15 1989-12-21 Rieter Ag Maschf ADJUSTABLE RUST FOR THE REMOVAL ARM OF A BALE REMOVER
DE8908276U1 (en) * 1988-08-02 1989-12-14 Trützschler GmbH & Co KG, 4050 Mönchengladbach Opening device for opening pressed fibre bales, e.g. cotton and rayon bales etc.
DE3827517A1 (en) * 1988-08-12 1990-02-15 Rieter Ag Maschf ADJUSTABLE RUST FOR THE REMOVAL ARM OF A BALE REMOVER
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
DE3934039A1 (en) * 1989-10-12 1991-04-18 Truetzschler & Co DEVICE FOR REMOVING FIBER BALLS, e.g. COTTON AND CHEMICAL FIBER BALLS OR THE LIKE, BY MEANS OF AN OPENING DEVICE
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.
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

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CH383224A (en) * 1960-07-08 1964-10-15 Rieter Ag Maschf Spinning ball rasp with rust
DE2847460C3 (en) * 1978-11-02 1981-10-08 Trützschler GmbH & Co KG, 4050 Mönchengladbach Method for opening several textile fiber bales
DE2847461C3 (en) * 1978-11-02 1981-09-10 Truetzschler Gmbh & Co Kg, 4050 Moenchengladbach Device for opening several textile fiber bales
DE3121030A1 (en) * 1981-05-27 1982-12-30 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt "DEVICE FOR OPENING FIBER BALLS"
EP0069847B1 (en) * 1981-07-15 1985-09-11 Maschinenfabrik Rieter Ag Method and apparatus for opening textile fibre bales
IT1151589B (en) * 1982-06-08 1986-12-24 Marzoli & C Spa DEVICE TO CHECK THE PRESENCE OF CONDUCTIVE MATERIALS IN BALES OF TEXTILE FIBERS FOR OPENABLE MACHINE
DE3334069C2 (en) * 1983-09-21 1986-04-24 Hergeth Hollingsworth GmbH, 4408 Dülmen Opening device for opening compressed fiber bales
US4586217A (en) * 1985-01-24 1986-05-06 Trutzschler Gmbh & Co. Kg Grate for a fiber bale opener
DE3503522C2 (en) * 1985-02-02 1994-04-07 Hubert Hergeth Contour milling machine
DE3504590A1 (en) * 1985-02-11 1986-08-14 Trützschler GmbH & Co KG, 4050 Mönchengladbach DEVICE FOR OPENING FIBER BALLS
DE3504615C1 (en) * 1985-02-11 1986-06-19 Trützschler GmbH & Co KG, 4050 Mönchengladbach Opener roller for opening fiber bales such as cotton bales, chemical fiber bales or the like.
DE3544435A1 (en) * 1985-12-16 1987-06-19 Truetzschler & Co DEVICE FOR OPENING SEVERAL FIBER BALLS

Also Published As

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GR871441B (en) 1987-09-22
NL192119B (en) 1996-10-01
GB2197665A (en) 1988-05-25
JP2667668B2 (en) 1997-10-27
EP0266492A1 (en) 1988-05-11
MX160030A (en) 1989-11-06
NL192119C (en) 1997-02-04
NL8702147A (en) 1988-05-02
IT8721292A0 (en) 1987-07-15
GB8723618D0 (en) 1987-11-11
BR8705425A (en) 1988-05-24
CH673847A5 (en) 1990-04-12
HK145595A (en) 1995-09-22
CA1308534C (en) 1992-10-13
ATA226387A (en) 1992-07-15
US4748725A (en) 1988-06-07
JPS63105120A (en) 1988-05-10
BE1000212A3 (en) 1988-08-30
FR2605020B1 (en) 1993-09-17
AT395725B (en) 1993-02-25
GB2197665B (en) 1990-08-15
FR2605020A1 (en) 1988-04-15
IT1228418B (en) 1991-06-17
YU173887A (en) 1989-10-31
IN168179B (en) 1991-02-16
ES2005389A6 (en) 1989-03-01

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