EP0358891B1 - Apparatus for opening pressed fibre bales, e.g. cotton and cellulose wool bales - Google Patents

Apparatus for opening pressed fibre bales, e.g. cotton and cellulose wool bales Download PDF

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Publication number
EP0358891B1
EP0358891B1 EP89113305A EP89113305A EP0358891B1 EP 0358891 B1 EP0358891 B1 EP 0358891B1 EP 89113305 A EP89113305 A EP 89113305A EP 89113305 A EP89113305 A EP 89113305A EP 0358891 B1 EP0358891 B1 EP 0358891B1
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EP
European Patent Office
Prior art keywords
rollers
opener
opening
bales
opener rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89113305A
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German (de)
French (fr)
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EP0358891A1 (en
Inventor
Josef Temburg
Dr. Ing. Ulrich Vollrath
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler GmbH and Co KG
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Truetzschler GmbH and Co KG
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Publication date
Priority claimed from DE3913929A external-priority patent/DE3913929C2/en
Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP0358891A1 publication Critical patent/EP0358891A1/en
Application granted granted Critical
Publication of EP0358891B1 publication Critical patent/EP0358891B1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/04—Breaking or opening fibre bales by means of toothed members
    • 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
    • D01G7/10—Arrangements for discharging fibres

Definitions

  • the invention relates to an opening device for opening pressed fiber bales, for. B. cotton and rayon bales u.
  • the toothed discs or needles opening rollers cooperate with a grate, the locking rods; lie between the toothed disks or needles of the opening rollers, the opening device being movable and the fiber bales being stationary and the teeth or the needles of the opening rollers simultaneously engaging in the fiber bales from above.
  • the parallel axes of the opening rollers are aligned horizontally to one another.
  • the opening rollers reach the same depth from above into the surface of the fiber bale during ablation.
  • the opening rollers have different directions of rotation, with the rollers moving towards each other in the area of the bale surface. If the opening rolls move in one direction during processing, both opening rolls take different amounts (production) off the fiber bales, with one opening roll working in parallel and the other roller in counter-milling.
  • An opening device of the aforementioned type is also known from FR-A-2 577 244, in which, however, the rollers move away from one another in the region of the bale surface.
  • the invention is based on the object of creating an opening device of the type described at the outset which avoids the disadvantages mentioned, in which the opening rollers in particular remove as much of the fibers as possible from the fiber bales both during the feed and the return.
  • the opening rollers engage in the fiber bales at different depths in the forward and reverse directions during processing, the production ratio between parallel milling and counter milling is improved, so that the fiber material is removed more uniformly.
  • the opening rollers are expediently arranged on an adjustable rocker.
  • An adjustable rocker is known per se from CH-PS 383 841.
  • the removal device with the opening rollers is stationary and the heavy fiber bales can be moved, the opening rollers also engaging the fiber bales from below. Only one opening disk engages in the fiber bale during forward and return, while the other opening disk is arranged at a distance from the surface of the fiber bale and is therefore completely disengaged.
  • the opening rollers are expediently convertible after the full forward and return flow. As a result, the opening rollers move at a constant height during one pass.
  • the opening roller arranged at the front in the direction of travel preferably engages deeper into the fiber bale than the opening roller arranged at the rear.
  • the grate bars advantageously remain at the same height during the processing of the fiber material.
  • Each opening roller is preferably assigned its own grate and adjustment means are provided for the vertical displacement of the grates with respect to one another. Adjustment means are preferably provided for the vertical displacement of the opening rollers and the grids.
  • the opening rollers and the grids are expediently rotated about a common horizontal axis.
  • the opening disks are preferably in engagement with the fiber bale at the same time, but each at different depths, during forward and reverse during removal.
  • the opening rollers are assigned measuring devices for the electrical current consumption, which are compared via a comparison device are electrically connected to a control device, which is followed by an actuator for actuating the setting device for the displacement of the opening rollers or the grates.
  • a measuring transducer which is assigned to the drive motor or the drive motors for the opening rollers, is expediently used to measure the current consumption.
  • a tachogenerator is advantageously assigned to the opening rollers, which measures a change in speed when the load changes.
  • the device according to the invention on a bale opener for. B. Trützschler-BLENDOMAT BDT shows, the fiber bales 1 in one fixed bale display set up freely.
  • a horizontally reciprocating carriage runs on rails (not shown) on which a vertically adjustable removal device is attached, which consists of a housing 2, two gratings 3, 4, two high-speed opening rollers 5, 6, milling 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 opening roller 5, 6.
  • the gratings 3, 4 lie on the surface 1a of the fiber bales 1, whereby hold-down devices are formed.
  • axially parallel pressure rollers 8a, 8b support and retention rollers
  • 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 5, 6 or pushing away through the grids 3, 4.
  • the direction of rotation of the opening rollers 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 opening rollers 5, 6.
  • the removal device moves back and forth with the opening rollers 5, 6 above the freely installed fiber bale 1, the teeth 5a, 6a of the opening rollers 5, 6 reaching through the gaps between the grids 3 and 4, respectively.
  • the fiber flakes detached from the surface 1a of the fiber bales 1 are thrown inwards by the opening rollers 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.
  • Each grate bar consists essentially of three areas: a first end, a middle area and a second end.
  • the first ends protrude from the surface 1a at an angle, the middle regions lie essentially horizontally on the surface 1a, the second ends protrude from the surface 1a at an angle.
  • the first ends are open; at the second ends are the grate bars attached to holding elements 10a, 10b.
  • Each opening roller 5, 6 is assigned its own grate 3 or 4, the open ends of the grate bars facing each other.
  • the opening rollers 5, 6 are arranged on a convertible rocker 11.
  • two bearings 12a, 12b (only the bearing 12a arranged on one machine side is shown) are provided for a shaft 35 (see FIGS. 2a, 2b) on which the rocker 11 is pivotably mounted (arrows E, F).
  • the opening rollers 5, 6 are supported on the rocker 11 by means of shafts 5b, 6b.
  • the opening roller 5, 6 and the rocker 11 are shown in a horizontal position, i. H. in the position at the moment of the change.
  • Fig. 2a shows the opening rollers 5, 6 and the rocker 11 in the forward position (arrow B).
  • the opening roller 6 arranged at the front in the direction of travel engages deeper into the bale surface 1a (see FIG. 1) than the opening roller 5 arranged at the rear.
  • Both opening rollers 5, 6 simultaneously engage in the bales 1 during the advance.
  • the distance y of the tooth tips 6a to this boundary line is smaller than the distance x of the tooth tips 5a to this boundary line.
  • 2b shows the opening rollers 5, 6 and the rocker 11 in the return position (arrow A).
  • the opening roller 5 arranged at the front in the direction of travel engages deeper into the bale surface 1a (see FIG.
  • Figure 3 shows the opening rollers 5, 6 in the forward position (arrow B).
  • the grate bars 3 and 4 are perpendicular to holding devices 13 and 14, respectively Direction with respect to the housing 2 and thus slidable with respect to each other (see arrows G and H).
  • the distance y of the lower grate boundary 4a to this boundary line is smaller than the distance y of the lower grate boundary 3a to this boundary line.
  • 3b shows the opening rollers 5, 6 in the return position (arrow A).
  • the distance y of the lower grate boundary 3a to this boundary line is smaller than the distance x of the lower grate boundary 4a to this boundary line.
  • the opening rollers 5, 6 remain at the same height. Both opening rollers 5, 6 engage the bales 1 simultaneously.
  • the holding devices 13 and 14 and thus the grids 3 and 4 are expediently switched over after the full forward or return.
  • a pneumatic pressure cylinder 16 is provided as an adjusting means, which is assigned to the removal device 2a.
  • the removal device 2a can be rotated about a rotary bearing 17 in the direction of the two arrows I and K; as a result, the opening rollers 5, 6 and the grids 3 and 4 are rotated about the horizontal axis 18, so that the opening rollers 5, 6 and grids 3, 4 are displaced in the vertical direction.
  • 4a shows the opening rollers 5, 6 in the forward position (arrow B).
  • the opening rollers 5 and the grate 3 are arranged a distance z 1 higher than the opening roller 6 and the grate 4.
  • fig. 4b shows the opening rollers 5, 6 in the return position (arrow A).
  • the opening roller 5 and the grate 3 are arranged a distance z2 lower than the opening roller 6 and the grate 4.
  • the opening rollers 5 and 6 are arranged on the rocker 11, which is rotatable about the axis of rotation 35 via bearings 12a. With 19 the connection between rocker 11 and bearing 12a is designated.
  • the axes 5b, 6b of the opening rollers 5, 6 are arranged in bearings 11a and 11b, respectively, which are fastened on the rocker 11.
  • a pneumatic cylinder 20 (actuator for position of the rocker 11) engages at one end of the rocker 11.
  • the opening rollers 5, 6 are driven via chain wheels and chains by the electric drive motors 21 and 22, respectively.
  • the drive motors 21 and 22 are each one Measuring device 23a, 23b electrically connected for measuring the current consumption.
  • the measuring devices 23a, 23b are connected to a comparison device 24 for the comparison between the current consumption values measured by the drive motors 21 and 22.
  • the comparison device 24 is connected via an amplifier 25 to a controller 26, e.g. B. a microcomputer with a microprocessor connected.
  • the control device 26 is connected to the overall control device 27 for the bale opener 1, from which the direction of travel (forward and return) of the removal device is entered into the control device 26.
  • the pneumatic cylinder 20 is connected downstream of the control device 26. If the current consumption of the drive motors 21 and 22 is different, the pneumatic cylinder 20 (actuator) is automatically set such that the difference between the two electrical currents consumed goes to zero.
  • control circuit 26 is provided in connection with the input of the direction of travel of the take-off element, so that the adjustment device for the pneumatic cylinder 20 (actuating drive) is recognized. For example, it is determined which of the opening rollers 5 or 6 works in the opposite direction; then the opening roller working in the same direction emerges from the bale surface 1a and the opening roller working in the opposite direction dips into the bale surface 1a.
  • the electrical terminal boxes are designated 30a, 30b.
  • the opening roller 5 is assigned an incremental rotary encoder, which consists of a rotating slotted disc 28 and a fixed sensor 29.
  • the slotted disc 28 is attached to an end face of the opening roller 5.
  • the sensor 29 is opposite the slotted disc 28.
  • the opening roller 6 is assigned a slotted disc 30 and a sensor 31 (not shown).
  • the sensors 29 and 31 are connected to the controller 26 (cf. FIG. 5) via the comparison device (24).
  • adjustment means 32 are provided for the vertical displacement of at least one of the opening rollers 5, 6.
  • the pressure rollers 8a, 8b, 8c in are expedient displaceable in the vertical direction.
  • Adjustment means 32 are advantageously provided for the displacement of at least one of the pressure rollers 8a, 8b, 8c.
  • the pressure rollers 8a, 8b, 8c are expediently displaceable or rotatable 17, 18 together with the housing 2.
  • the pressure rollers 8a, 8b, 8c are preferably displaceable together with the opening rollers 5, 6.
  • An internal toothed ring is expediently provided on the tower of the bale opener for displacing the opening rollers 5, 6, with which a gearwheel connected to the housing 2 or the adjusting means 32 engages.
  • FIGS. 7a, 7b show an embodiment in which the opening rollers 5, 6 and the pressure rollers 8a, 8b, 8c are mounted on the rotary bearing 34.
  • a pressure cylinder 32 is provided which, via the rotation (arrows I, K) about the rotary bearing 34, causes the opening rollers 5, 6 and the pressure rollers 8a, 8b, 8c to be displaced in the vertical direction (cf. FIG. 7b).
  • the housing 2 is not rotatable.
  • the opening rollers 5, 6 and the pressure rollers 8a, 8b, 8c are arranged rotatably or displaceably within the housing 2 and independently of the housing 2.
  • the size of the angle of the slope of the processing plane can be changed in a simple manner in the opening device for a row of bales.
  • an inclined surface can be generated from a horizontal top of the row of bales by gradually (gradually) rotating the opening rollers, and this is maintained during further processing. Bales can be pushed continuously on the side of the row of bales facing away from the inclined surface.
  • the opening rollers are gradually (step by step) rotated in the opposite direction, so that the inclined surface merges again into the horizontal.
  • the displacement path of the boom in the height direction and the longitudinal movement of the tower can be set as a function of the predetermined oblique angle via a control device.
  • the opening rollers 5, 6, the grates 3, 4 and the pressure rollers 8a, 8b are each assigned a pneumatic cylinder 32a to 32f as setting means.
  • the piston rods of the pneumatic cylinders 32a to 32f can be moved in the direction indicated by double arrows. In this way there is a vertical displacement or adjustment of the opening rollers 5, 6, the grates 3, 4 and the pressure rollers 8a, 8b.
  • the control device (not shown) assigned to the pneumatic cylinders 32a to 32f permits vertical displacement in such a way that any desired processing inclination (angle ⁇ ) can be achieved.
  • the housing 2 together with the opening rollers 5, 6, grates 3, 4 and pressure elements 8a, 8b, is movably mounted in the vertical direction on the tower of the bale opener.
  • the opening rollers 5, 6, the grates 3, 4 and pressure rollers 8a, 8b are displaced relative to and independently of the housing 2.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Paper (AREA)

Description

Die Erfindung betrifft eine Öffnungsvorrichtung zum Öffnen von gepreßten Faserballen, z. B. Baumwoll- und Zellwollballen u. dgl., bei der schnellaufende Öffnerwalzen vorgesehen sind, die Zahnscheiben oder Nadeln enthaltenden Öffnerwalzen mit einem Rost zusammenwirken, dessen Raststäbe; zwischen den Zahnscheiben oder Nadeln der Öffnerwalzen liegen, wobei die Öffnungsvorrichtung fahrbar und die Faserballen ortsfest sind und die Zähne bzw. die Nadeln der Öffnerwalzen gleichzeitig und von oben in die Faserballen greifen.The invention relates to an opening device for opening pressed fiber bales, for. B. cotton and rayon bales u. Like., In the fast-running opening rollers are provided, the toothed discs or needles opening rollers cooperate with a grate, the locking rods; lie between the toothed disks or needles of the opening rollers, the opening device being movable and the fiber bales being stationary and the teeth or the needles of the opening rollers simultaneously engaging in the fiber bales from above.

Bei einer bekannten Öffnungsvorrichtung sind die parallelen Achsen der Öffnerwalzen horizontal zueinander ausgerichtet. Beim Vorlauf und beim Rücklauf greifen die Öffnerwalzen während der Abtragung gleich tief von oben in die Oberfläche der Faserballen in. Die Öffnerwalzen haben unterschiedlichen Drehsinn, wobei sich die Walzen im Bereich der Ballenoberfläche aufeinander zu bewegen. Wenn die Öffnerwalzen während der Abarbeitung in einer Richtung fahren, nehmen beide Öffnerwalzen unterschiedliche Mengen (Produktion) von den Faserballen ab, wobei eine Öffnerwalze im Gleichlauffräsen und die andere Walze im Gegenlauffräsen arbeitet. Eine Öffnungsvorrichtung der vorgenannten Art ist auch aus der FR-A- 2 577 244 bekannt, bei der sich jedoch die Walzen im Bereich der Ballenoberfläche voneinander weg bewegen.In a known opening device, the parallel axes of the opening rollers are aligned horizontally to one another. During forwarding and returning, the opening rollers reach the same depth from above into the surface of the fiber bale during ablation. The opening rollers have different directions of rotation, with the rollers moving towards each other in the area of the bale surface. If the opening rolls move in one direction during processing, both opening rolls take different amounts (production) off the fiber bales, with one opening roll working in parallel and the other roller in counter-milling. An opening device of the aforementioned type is also known from FR-A-2 577 244, in which, however, the rollers move away from one another in the region of the bale surface.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, eine Öffnungsvorrichtung der eingangs beschriebenen Art zu schaffen, die die genannten Nachteile vermeidet, bei der insbesondere die Öffnerwalzen sowohl während des Vorlaufs wie des Rücklaufs jeweils möglichst gleiche Mengen an Fasern von den Faserballen abtragen.In contrast, the invention is based on the object of creating an opening device of the type described at the outset which avoids the disadvantages mentioned, in which the opening rollers in particular remove as much of the fibers as possible from the fiber bales both during the feed and the return.

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 Öffnerwalzen beim Vorlauf und beim Rücklauf während der Abarbeitung jeweils unterschiedlich tief in die Faserballen eingreifen, wird das Produktionsverhältnis zwischen Gleichlauffräsen und Gegenlauffräsen verbessert, so daß eine wesentlich gleichmäßigere Abnahme des Fasermaterials erfolgt.Due to the fact that the opening rollers engage in the fiber bales at different depths in the forward and reverse directions during processing, the production ratio between parallel milling and counter milling is improved, so that the fiber material is removed more uniformly.

Zweckmäßig sind die Öffnerwalzen auf einer umstellbaren Wippe angeordnet. Aus der CH-PS 383 841 ist zwar eine umstellbare Wippe an sich bekannt. Jedoch ist die Abnahmevorrichtung mit den Öffnerwalzen ortsfest und die schweren Faserballen fahrbar, wobei außerdem die Öffnerwalzen von unten in die Faserballen eingreifen. Beim Vorlauf und beim Rücklauf greift jeweils nur eine Öffnerscheibe in den Faserballen ein, während die andere Öffnerscheibe in einem Abstand zur Oberfläche des Faserballens angeordnet und damit vollständig außer Eingriff gebracht ist. Zweckmäßig sind die Öffnerwalzen jeweils nach dem vollen Vor- und Rücklauf umstellbar. Dadurch bewegen sich während eines Durchganges die Öffnerwalzen auf konstanter Höhe. Bevorzugt greift während eines Durchgangs die in Fahrtrichtung jeweils vorn angeordnete Öffnerwalze tiefer in die Faserballen ein als die hinten angeordnete Öffnerwalze. Vorteilhaft verbleiben während der Abarbeitung des Fasermaterials die Roststäbe auf gleicher Höhe.The opening rollers are expediently arranged on an adjustable rocker. An adjustable rocker is known per se from CH-PS 383 841. However, the removal device with the opening rollers is stationary and the heavy fiber bales can be moved, the opening rollers also engaging the fiber bales from below. Only one opening disk engages in the fiber bale during forward and return, while the other opening disk is arranged at a distance from the surface of the fiber bale and is therefore completely disengaged. The opening rollers are expediently convertible after the full forward and return flow. As a result, the opening rollers move at a constant height during one pass. During a passage, the opening roller arranged at the front in the direction of travel preferably engages deeper into the fiber bale than the opening roller arranged at the rear. The grate bars advantageously remain at the same height during the processing of the fiber material.

Bevorzugt ist jeder Öffnerwalze ein eigener Rost zugeordnet und sind Einstellmittel für die vertikale Verlagerung der Roste in bezug aufeinander vorgesehen. Vorzugsweise sind Einstellmittel für die vertikale Verlagerung der Öffnerwalzen und der Roste vorgesehen. Zweckmäßig werden die Öffnerwalzen und die Roste um eine gemeinsame waagerechte Achse gedreht. Vorzugsweise stehen beim Vorlauf und beim Rücklauf während der Abtragung die Öffnerscheiben gleichzeitig, aber jeweils unterschiedlich tief in Eingriff mit dem Faserballen. Nach einer weiteren bevorzugten Ausführungsform sind den Öffnerwalzen Meßeinrichtungen für die elektrische Stromaufnahme zugeordnet, die über eine Vergleichseinrichtung elektrisch mit einer Steuereinrichtung in Verbindung stehen, der ein Stellglied für die Betätigung der Einstelleinrichtung für die Verlagerung der Öffnerwalzen bzw. der Roste nachgeordnet ist. Durch Stromaufnahmemessung der Öffnerwalzen kann festgestellt werden, ob die gewünschte Höheneinstellung der Öffnerwalzen und/oder der Roste vorhanden ist. Sofern die Meßgrößen beider Öffnerwalzen nicht nahezu gleich sind, wird die Höheneinstellung vorzugsweise während des Abarbeitung korrigiert, bis die Meßgrößen gleich sind. Zweckmäßig wird zur Messung der Stromaufnahme ein Meßumformer herangezogen, der dem Antriebsmotor bzw. den Antriebsmotoren für die Öffnerwalzen zugeordnet ist. Vorteilhaft ist den Öffnerwalzen ein Tachogenerator zugeordnet, der bei veränderter Belastung eine Änderung der Drehzahl mißt.Each opening roller is preferably assigned its own grate and adjustment means are provided for the vertical displacement of the grates with respect to one another. Adjustment means are preferably provided for the vertical displacement of the opening rollers and the grids. The opening rollers and the grids are expediently rotated about a common horizontal axis. The opening disks are preferably in engagement with the fiber bale at the same time, but each at different depths, during forward and reverse during removal. According to a further preferred embodiment, the opening rollers are assigned measuring devices for the electrical current consumption, which are compared via a comparison device are electrically connected to a control device, which is followed by an actuator for actuating the setting device for the displacement of the opening rollers or the grates. By measuring the current consumption of the opening rollers, it can be determined whether the desired height setting of the opening rollers and / or the grids is present. If the measured variables of both opening rollers are not nearly the same, the height adjustment is preferably made during the Processing corrected until the measured variables are the same. A measuring transducer, which is assigned to the drive motor or the drive motors for the opening rollers, is expediently used to measure the current consumption. A tachogenerator is advantageously assigned to the opening rollers, which measures a change in speed when the load changes.

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

Es zeigt:

Fig. 1
die erfindungsgemäße Öffnungsvorrichtung mit Wippe für die Höhenverstellung der Öffnerwalzen in Seitenansicht,
Fig. 2a
eine Vorrichtung wie Fig. 1 im Vorlauf,
Fig. 2b
die Vorrichtung gemäß Fig. 2a in Rücklauf,
Fig. 3a, 3b
eine weitere Ausbildung der Erfindung mit Höhenverstellung der unabhängigen Roste,
Fig. 4a, 4b
eine weitere Ausbildung der Erfindung mit Höhenverstellung der Öffnerwalze und der Roste,
Fig. 5
ein Blockschaltbild für die Messung der Stromaufnahme und die automatische Anpassung der Höheneinstellung,
Fig. 6
den der Öffnerwalze zugeordneten Drehgeber ,
Fig. 7a, 7b
eine Ausbildung, bei der die Öffnerwalzen und die Andrückwalzen an einem Drehlager gelagert sind,
Fig. 8a, 8b
Öffnerwalzen, Roste und Stützwalzen, denen jeweils als Einstellmittel Pneumatikzylinder zugeordnet sind.
It shows:
Fig. 1
the opening device according to the invention with rocker for the height adjustment of the opening rollers in side view,
Fig. 2a
a device like Fig. 1 in advance,
Fig. 2b
2a in return,
3a, 3b
a further embodiment of the invention with height adjustment of the independent grids,
4a, 4b
a further embodiment of the invention with height adjustment of the opening roller and the grates,
Fig. 5
a block diagram for the measurement of the current consumption and the automatic adjustment of the height setting,
Fig. 6
the encoder assigned to the opening roller,
7a, 7b
an education in which the opening rollers and the pressure rollers are mounted on a rotary bearing,
8a, 8b
Opener rollers, grates and support rollers, each of which pneumatic cylinders are assigned as adjusting means.

Nach Fig. 1, die die erfindungsgemäße Vorrichtung an einem Ballenöffner, z. B. Trützschler-BLENDOMAT BDT zeigt, 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 Roste 3, 4, zwei schnellaufenden Öffnerwalzen 5, 6, Fräswalzen 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 Öffnerwalze 5, 6 ein. Die Roste 3, 4 liegen dabei auf der Oberfläche 1a der Faserballen 1 auf, wodurch Niederhalter gebildet sind. Vor und hinter den Öffnerwalzen 5, 6 sind achsparallel Andruckwalzen 8a, 8b (Stütz- bzw. Rückhaltewalzen) vorgesehen, die auf die Oberfläche 1a 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 5, 6 bzw. Wegschieben durch die Roste 3, 4 gesichert. Die Drehrichtung der Öffnerwalzen 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 Öffnerwalzen 5, 6 angeordnet. Im Betrieb fährt die Abnahmeeinrichtung mit den Öffnerwalzen 5, 6 oberhalb der frei aufgestellten Faserballen 1 hin und her, wobei die Zähne 5a, 6a der Öffnerwalzen 5, 6 durch die Lücken zwischen den Rosten 3 bzw. 4 hindurchreichen. Die aus der Oberfläche 1a der Faserballen 1 abgelösten Faserflocken werden von den Öffnerwalzen 5, 6 nach innen weggeschleudert. Sie gelangen unmittelbar in den Luftstrom 9 und werden in den Kanal der Flockenabsaugeinrichtung 7 abgesaugt.1, the device according to the invention on a bale opener, for. B. Trützschler-BLENDOMAT BDT shows, the fiber bales 1 in one fixed bale display set up freely. A horizontally reciprocating carriage runs on rails (not shown) on which a vertically adjustable removal device is attached, which consists of a housing 2, two gratings 3, 4, two high-speed opening rollers 5, 6, milling 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 opening roller 5, 6. The gratings 3, 4 lie on the surface 1a of the fiber bales 1, whereby hold-down devices are formed. In front of and behind the opening rollers 5, 6, axially parallel pressure rollers 8a, 8b (support and retention rollers) are provided, which press on the surface 1a 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 5, 6 or pushing away through the grids 3, 4. The direction of rotation of the opening rollers 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 opening rollers 5, 6. In operation, the removal device moves back and forth with the opening rollers 5, 6 above the freely installed fiber bale 1, the teeth 5a, 6a of the opening rollers 5, 6 reaching through the gaps between the grids 3 and 4, respectively. The fiber flakes detached from the surface 1a of the fiber bales 1 are thrown inwards by the opening rollers 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 gebildet. Jeder Roststab besteht im wesentlichen aus drei Bereichen: einem ersten Ende, einem mittleren Bereich und einem zweiten Ende. Die ersten Enden stehen unter einem Winkel von der Oberfläche 1a ab, die mittleren Bereiche liegen im wesentlichen waagerecht auf der Oberfläche 1a auf, die zweiten Enden stehen unter einem Winkel von der Oberfläche 1a ab. Die ersten Enden sind offen; an den zweiten Enden sind die Roststäbe an Halteelementen 10a, 10b befestigt. Jeder Öffnerwalze 5, 6 ist ein eigener Rost 3 bzw. 4 zugeordnet, wobei die offenen Enden der Roststäbe zueinander zugewandt sind.The grids 3, 4 are formed from a plurality of grate bars or grate bars. Each grate bar consists essentially of three areas: a first end, a middle area and a second end. The first ends protrude from the surface 1a at an angle, the middle regions lie essentially horizontally on the surface 1a, the second ends protrude from the surface 1a at an angle. The first ends are open; at the second ends are the grate bars attached to holding elements 10a, 10b. Each opening roller 5, 6 is assigned its own grate 3 or 4, the open ends of the grate bars facing each other.

Die Öffnerwalzen 5, 6 sind auf einer umstellbaren Wippe 11 angeordnet. Dazu sind zwei Lager 12a, 12b (nur das auf einer Maschinenseite angeordnete Lager 12a ist dargestellt) für eine Welle 35 (siehe Figuren 2a, 2b) vorgesehen,, auf der die Wippe 11 schwenkbar (Pfeile E, F) gelagert ist. Die Öffnerwalzen 5, 6 lagern mittels Wellen 5b, 6b auf der Wippe 11. In Fig. 1 sind die Öffnerwalze 5, 6 und die Wippe 11 in waagerechter Position dargestellt, d. h. in der im Augenblick des Umstellens vorhandenen Position.The opening rollers 5, 6 are arranged on a convertible rocker 11. For this purpose, two bearings 12a, 12b (only the bearing 12a arranged on one machine side is shown) are provided for a shaft 35 (see FIGS. 2a, 2b) on which the rocker 11 is pivotably mounted (arrows E, F). The opening rollers 5, 6 are supported on the rocker 11 by means of shafts 5b, 6b. In FIG. 1, the opening roller 5, 6 and the rocker 11 are shown in a horizontal position, i. H. in the position at the moment of the change.

Fig. 2a zeigt die Öffnerwalzen 5, 6 und die Wippe 11 in Vorlaufstellung (Pfeil B). Die in Fahrtrichtung vorn angeordnete Öffnerwalze 6 greift tiefer in die Ballenoberfläche 1a (siehe Fig. 1) ein als die hinten angeordnete Öffnerwalze 5. Beide Öffnerwalzen 5, 6 greifen während des Vorlaufs gleichzeitig in die Ballen 1 ein. Ausgehend von der unteren Grenzlinie des mittleren Bereichs 3a, 4a der Roststäbe 3 bzw. 4 ist der Abstand y der Zahnspitzen 6a zu dieser Grenzlinie kleiner als der Abstand x der Zahnspitzen 5a zu dieser Grenzlinie. Fig. 2b zeigt die Öffnerwalzen 5, 6 und die Wippe 11 in Rücklaufstellung (Pfeil A). Die in Fahrtrichtung vorn angeordnete Öffnerwalze 5 greift tiefer in die Ballenoberfläche 1a (siehe Figur 1) ein, als die hinten angeordnete Öffnerwalze 6. Beide Öffnerwalzen 5, 6 greifen während des Rücklaufs gleichzeitig in die Ballen 1 ein. Ausgehend von der unteren Grenzlinie des mittleren Bereichs 3a, 4a der Roststäbe 3 bzw. 4 ist der Abstand y der Zahnspitzen 5a zu dieser Grenzlinie kleiner als der Abstand x der Zahnspitzen 6a zu dieser Grenzlinie. Mit den gebogenen Pfeilen E und F ist die Richtung angezeigt, in der die Öffnerwalzen 5, 6 und die Wippe 11 umgestellt werden. Die Öffnerwalzen 5, 6 werden zweckmäßig jeweils nach dem vollen Vor- bzw. Rücklauf in die jeweils andere Position (Fig. 2a oder 2b) umgestellt. Die Roststäbe 3, 4 verbleiben auf gleicher Höhe.Fig. 2a shows the opening rollers 5, 6 and the rocker 11 in the forward position (arrow B). The opening roller 6 arranged at the front in the direction of travel engages deeper into the bale surface 1a (see FIG. 1) than the opening roller 5 arranged at the rear. Both opening rollers 5, 6 simultaneously engage in the bales 1 during the advance. Starting from the lower boundary line of the central region 3a, 4a of the grate bars 3 and 4, the distance y of the tooth tips 6a to this boundary line is smaller than the distance x of the tooth tips 5a to this boundary line. 2b shows the opening rollers 5, 6 and the rocker 11 in the return position (arrow A). The opening roller 5 arranged at the front in the direction of travel engages deeper into the bale surface 1a (see FIG. 1) than the opening roller 6 arranged at the rear. Both opening rollers 5, 6 simultaneously engage the bales 1 during the return. Starting from the lower boundary line of the central region 3a, 4a of the grate bars 3 and 4, the distance y of the tooth tips 5a to this boundary line is smaller than the distance x of the tooth tips 6a to this boundary line. The curved arrows E and F indicate the direction in which the opening rollers 5, 6 and the rocker 11 are changed over. The opening rollers 5, 6 are expediently switched to the other position (FIG. 2a or 2b) after the full forward or return. The grate bars 3, 4 remain at the same height.

Figur 3 zeigt die Öffnerwalzen 5, 6 in Vorlaufstellung (Pfeil B). Die Roststäbe 3 und 4 sind über Halteeinrichtungen 13 bzw. 14 in senkrechter Richtung in bezug auf das Gehäuse 2 und damit in bezug aufeinander verschiebbar (vgl. Pfeile G und H). Ausgehend von der unteren Grenzlinie der Zahnspitzen 5a und 6a ist der Abstand y der unteren Rostbegrenzung 4a zu dieser Grenzlinie kleiner als der Abstand y der unteren Rostbegrenzung 3a zu dieser Grenzlinie. Fig. 3b zeigt die Öffnerwalzen 5, 6 in Rücklaufstellung (Pfeil A). Ausgehend von der unteren Grenzlinie der Zahnspitzen 5a und 6a ist der Abstand y der unteren Rostbegrenzung 3a zu dieser Grenzlinie kleiner als der Abstand x der unteren Rostbegrenzung 4a zu dieser Grenzlinie. Die Öffnerwalzen 5, 6 verbleiben auf gleicher Höhe. Beide Öffnerwalzen 5, 6 greifen gleichzeitig in die Ballen 1 ein. Die Halteeinrichtungen 13 und 14 und damit die Roste 3 bzw. 4 werden zweckmäßig jeweils nach dem vollen Vor- bzw. Rücklauf umgestellt.Figure 3 shows the opening rollers 5, 6 in the forward position (arrow B). The grate bars 3 and 4 are perpendicular to holding devices 13 and 14, respectively Direction with respect to the housing 2 and thus slidable with respect to each other (see arrows G and H). Starting from the lower boundary line of the tooth tips 5a and 6a, the distance y of the lower grate boundary 4a to this boundary line is smaller than the distance y of the lower grate boundary 3a to this boundary line. 3b shows the opening rollers 5, 6 in the return position (arrow A). Starting from the lower boundary line of the tooth tips 5a and 6a, the distance y of the lower grate boundary 3a to this boundary line is smaller than the distance x of the lower grate boundary 4a to this boundary line. The opening rollers 5, 6 remain at the same height. Both opening rollers 5, 6 engage the bales 1 simultaneously. The holding devices 13 and 14 and thus the grids 3 and 4 are expediently switched over after the full forward or return.

Nach Fig. 4a, 4b ist ein pneumatischer Druckzylinder 16 als Einstellmittel vorgesehen, der der Abnahmeeinrichtung 2a zugeordnet ist. Die Abnahmeeinrichtung 2a ist um ein Drehlager 17 in Richtung der beiden Pfeile I und K drehbar; dadurch werden auch die Öffnerwalzen 5, 6 und die Roste 3 und 4 um die waagerechte Achse 18 gedreht, so daß eine Verlagerung der Öffnerwalzen 5, 6 und Roste 3, 4 in vertikaler Richtung erfolgt. Fig. 4a zeigt die Öffnerwalzen 5, 6 in Vorlaufstellung (Pfeil B). Die Öffnerwalzen 5 und der Rost 3 sind um einen Abstand z₁ höher als die Öffnerwalze 6 und der Rost 4 angeordnet. fig. 4b zeigt die Öffnerwalzen 5, 6 in Rücklaufstellung (Pfeil A). Die Öffnerwalze 5 und der Rost 3 sind um einen Abstand z₂ tiefer als die Öffnerwalze 6 und der Rost 4 angeordnet.4a, 4b, a pneumatic pressure cylinder 16 is provided as an adjusting means, which is assigned to the removal device 2a. The removal device 2a can be rotated about a rotary bearing 17 in the direction of the two arrows I and K; as a result, the opening rollers 5, 6 and the grids 3 and 4 are rotated about the horizontal axis 18, so that the opening rollers 5, 6 and grids 3, 4 are displaced in the vertical direction. 4a shows the opening rollers 5, 6 in the forward position (arrow B). The opening rollers 5 and the grate 3 are arranged a distance z 1 higher than the opening roller 6 and the grate 4. fig. 4b shows the opening rollers 5, 6 in the return position (arrow A). The opening roller 5 and the grate 3 are arranged a distance z₂ lower than the opening roller 6 and the grate 4.

Nach Fig. 5 sind die Öffnerwalzen 5 und 6 auf der Wippe 11 angeordnet, die über Lager 12a um die Drehachse 35 drehbar ist. Mit 19 ist die Verbindung zwischen Wippe 11 und Lager 12a bezeichnet. Die Achsen 5b, 6b der Öffnerwalzen 5, 6 sind in Lagern 11a bzw. 11b angeordnet, die auf der Wippe 11 befestigt sind. An einem Ende der Wippe 11 greift ein Pneumatikzylinder 20 (Stellantrieb für Position der Wippe 11) an. Die Öffnerwalzen 5, 6 werden über Kettenräder und Ketten durch die elektrischen Antriebsmotoren 21 bzw. 22 angetrieben. Die Antriebsmotoren 21 und 22 sind jeweils mit einer Meßeinrichtung 23a, 23b für die Messung der Stromaufnahme elektrisch verbunden. Die Meßeinrichtungen 23a, 23b stehen mit einer Vergleichseinrichtung 24 für den Vergleich zwischen den von den Antriebsmotoren 21 und 22 gemessenen Stromaufnahmewerten in Verbindung. Die Vergleichseinrichtung 24 ist über einen Verstärker 25 mit einer Steuerung 26, z. B. einem Mikrocomputer mit Mikroprozessor, verbunden. Die Steuereinrichtung 26 ist mit der Gesamtsteuereinrichtung 27 für den Ballenöffner 1 verbunden, aus der die Fahrtrichtung (Vor- und Rücklauf) der Abtragseinrichtung in die Steuereinrichtung 26 eingegeben wird. Der Steuereinrichtung 26 ist der Pneumatikzylinder 20 nachgeschaltet. Bei unterschiedlicher Stromaufnahme der Antriebsmotoren 21 und 22 wird der Pneumatikzylinder 20 (Stellantrieb) automatisch so eingestellt, daß die Differenz der beiden aufgenommenen elektrischen Ströme gegen Null geht. Dazu ist der Regelkreis 26 vorgesehen in Verbindung mit der Eingabe der Fahrtrichtung des Abnahmeorgans, damit die Verstelleinrichtung für den Pneumatikzylinder 20 (Stelleintrieb) erkannt wird. Beispielsweise wird festgestellt, welche der Öffnerwalzen 5 oder 6 im Gegenlauf arbeitet; dann taucht die im Gleichlauf arbeitende Öffnerwalze aus der Ballenoberfläche 1a aus und die im Gegenlauf arbeitende Öffnerwalze taucht in die Ballenoberfläche 1a ein. Mit 30a, 30b sind die elektrischen Klemmkästen bezeichnet.5, the opening rollers 5 and 6 are arranged on the rocker 11, which is rotatable about the axis of rotation 35 via bearings 12a. With 19 the connection between rocker 11 and bearing 12a is designated. The axes 5b, 6b of the opening rollers 5, 6 are arranged in bearings 11a and 11b, respectively, which are fastened on the rocker 11. A pneumatic cylinder 20 (actuator for position of the rocker 11) engages at one end of the rocker 11. The opening rollers 5, 6 are driven via chain wheels and chains by the electric drive motors 21 and 22, respectively. The drive motors 21 and 22 are each one Measuring device 23a, 23b electrically connected for measuring the current consumption. The measuring devices 23a, 23b are connected to a comparison device 24 for the comparison between the current consumption values measured by the drive motors 21 and 22. The comparison device 24 is connected via an amplifier 25 to a controller 26, e.g. B. a microcomputer with a microprocessor connected. The control device 26 is connected to the overall control device 27 for the bale opener 1, from which the direction of travel (forward and return) of the removal device is entered into the control device 26. The pneumatic cylinder 20 is connected downstream of the control device 26. If the current consumption of the drive motors 21 and 22 is different, the pneumatic cylinder 20 (actuator) is automatically set such that the difference between the two electrical currents consumed goes to zero. For this purpose, the control circuit 26 is provided in connection with the input of the direction of travel of the take-off element, so that the adjustment device for the pneumatic cylinder 20 (actuating drive) is recognized. For example, it is determined which of the opening rollers 5 or 6 works in the opposite direction; then the opening roller working in the same direction emerges from the bale surface 1a and the opening roller working in the opposite direction dips into the bale surface 1a. The electrical terminal boxes are designated 30a, 30b.

Nach Fig. 6 ist der Öffnerwalze 5 ein inkrementaler Drehgeber zugeordnet, der aus einer rotierenden Schlitzscheibe 28 und einem ortsfesten Sensor 29 besteht. Die Schlitzscheibe 28 ist an einer Stirnseite der Öffnerwalze 5 befestigt. Der Sensor 29 liegt der Schlitzscheibe 28 gegenüber. Der Öffnerwalze 6 sind in entsprechender Weise eine Schlitzscheibe 30 und ein Sensor 31 (nicht dargestellt) zugeordnet. Die Sensoren 29 und 31 stehen über die Vergleichseinrichtung (24) mit der Steuerung 26 (vgl. Fig. 5) in Verbindung.6, the opening roller 5 is assigned an incremental rotary encoder, which consists of a rotating slotted disc 28 and a fixed sensor 29. The slotted disc 28 is attached to an end face of the opening roller 5. The sensor 29 is opposite the slotted disc 28. In a corresponding manner, the opening roller 6 is assigned a slotted disc 30 and a sensor 31 (not shown). The sensors 29 and 31 are connected to the controller 26 (cf. FIG. 5) via the comparison device (24).

Nach einer weiteren bevorzugten Ausbildung sind Einstellmittel 32 für die vertikale Verlagerung mindestens einer der Öffnerwalzen 5, 6 vorgesehen. Zweckmäßig sind die Andrückwalzen 8a, 8b, 8c in vertikaler Richtung verlagerbar. Mit Vorteil sind Einstellmittel 32 für die Verlagerung mindestens einer der Andrückwalzen 8a, 8b, 8c vorgesehen. Zweckmäßig sind die Andrückwalzen 8a, 8b, 8c zusammen mit dem Gehäuse 2 verlagerbar bzw. drehbar 17, 18. Bevorzugt sind die Andrückwalzen 8a, 8b, 8c zusammen mit den Öffnerwalzen 5, 6 verlagerbar. Zweckmäßig ist zur Verlagerung der Öffnerwalzen 5, 6 an dem Turm des Ballenöffners ein Innenzahnkranz vorgesehen, mit dem ein mit dem Gehäuse 2 oder dem Einstellmittel 32 verbundenes Zahnrad zusammengreift.According to a further preferred embodiment, adjustment means 32 are provided for the vertical displacement of at least one of the opening rollers 5, 6. The pressure rollers 8a, 8b, 8c in are expedient displaceable in the vertical direction. Adjustment means 32 are advantageously provided for the displacement of at least one of the pressure rollers 8a, 8b, 8c. The pressure rollers 8a, 8b, 8c are expediently displaceable or rotatable 17, 18 together with the housing 2. The pressure rollers 8a, 8b, 8c are preferably displaceable together with the opening rollers 5, 6. An internal toothed ring is expediently provided on the tower of the bale opener for displacing the opening rollers 5, 6, with which a gearwheel connected to the housing 2 or the adjusting means 32 engages.

Figuren 7a, 7b zeigen eine Ausbildung, bei der die Öffnerwalzen 5, 6 und die Andrückwalzen 8a, 8b, 8c an dem Drehlager 34 gelagert sind. Es ist ein Druckzylinder 32 vorgesehen, der über die Drehung (Pfeile I, K) um das Drehlager 34 eine Verlagerung der Öffnerwalzen 5, 6 und der andrückwalzen 8a, 8b, 8c in vertikaler Richtung (vgl. Fig. 7b) bewirkt. Bei dieser Ausführungsform ist das Gehäuse 2 nicht drehbar ausgebildet. Innerhalb des Gehäuses 2 und unabhängig von dem Gehäuse 2 sind die Öffnerwalzen 5, 6 und die Andrückwalzen 8a, 8b, 8c drehbar bzw. verlagerbar angeordnet.FIGS. 7a, 7b show an embodiment in which the opening rollers 5, 6 and the pressure rollers 8a, 8b, 8c are mounted on the rotary bearing 34. A pressure cylinder 32 is provided which, via the rotation (arrows I, K) about the rotary bearing 34, causes the opening rollers 5, 6 and the pressure rollers 8a, 8b, 8c to be displaced in the vertical direction (cf. FIG. 7b). In this embodiment, the housing 2 is not rotatable. The opening rollers 5, 6 and the pressure rollers 8a, 8b, 8c are arranged rotatably or displaceably within the housing 2 and independently of the housing 2.

Durch die Verlagerung der Öffnerwalzen 5, 6 kann auf einfache Weise bei der Öffnungsvorrichtung für eine Ballenreihe die Größe des Winkels der Schräge der Abarbeitungsebene verändert werden. Insbesondere kann am Beginn der Abarbeitung aus einer horizontalen Oberseite der Ballenreihe durch allmähliche (schrittweise) Drehung der Öffnerwalzen eine Schrägfläche erzeugt werden, die bei der weiteren Abarbeitung beibehalten wird. Dabei können Ballen kontinuierlich an der der Schrägfläche abgewandten Seite der Ballenreihe nachgeschoben werden. Am Schluß der Abarbeitung werden die Öffnerwalzen allmählich (schrittweise) in die entgegengesetzte Richtung gedreht, so daß die Schrägfläche wieder in die Horizontale übergeht. In an sich bekannter Weise sind der Verschiebeweg des Auslegers in Höhenrichtung und die Längsbewegung des Turms in Abhängigkeit von dem vorbestimmten Schrägwinkel über eine Steuereinrichtung einstellbar.By moving the opening rollers 5, 6, the size of the angle of the slope of the processing plane can be changed in a simple manner in the opening device for a row of bales. In particular, at the beginning of processing, an inclined surface can be generated from a horizontal top of the row of bales by gradually (gradually) rotating the opening rollers, and this is maintained during further processing. Bales can be pushed continuously on the side of the row of bales facing away from the inclined surface. At the end of processing, the opening rollers are gradually (step by step) rotated in the opposite direction, so that the inclined surface merges again into the horizontal. In a manner known per se, the displacement path of the boom in the height direction and the longitudinal movement of the tower can be set as a function of the predetermined oblique angle via a control device.

Nach Figuren 8a, 8b ist den Öffnerwalzen 5, 6, den Rosten 3, 4 und den Andrückwalzen 8a, 8b jeweils als Einstellmittel ein Pneumatikzylinder 32a bis 32f zugeordnet. Die Kolbenstangen der Pneumatikzylinder 32a bis 32f sind in der durch Doppelpfeile angegebenen Richtung bewegbar. Auf diese Weise erfolgt eine vertikale Verlagerung bzw. Verstellung der Öffnerwalzen 5, 6, der Roste 3, 4 und der Andrückwalzen 8a, 8b. Die den Pneumatikzylindern 32a bis 32f zugeordnete (nicht dargestellte) Steuereinrichtung erlaubt eine vertikale Verlagerung derart, daß jede gewünschte Abarbeitungsneigung (Winkel α ) verwirklicht werden kann. Das Gehäuse 2 ist zusammen mit den Öffnerwalzen 5, 6, Rosten 3, 4 und Andrückelementen 8a, 8b in vertikaler Richtung am Turm des Ballenöffners beweglich angebracht. Die Verlagerung der Öffnerwalzen 5, 6, der Roste 3, 4 und Andrückwalzen 8a, 8b erfolgt relativ in bezug auf das und unabhängig von dem Gehäuse 2.According to FIGS. 8a, 8b, the opening rollers 5, 6, the grates 3, 4 and the pressure rollers 8a, 8b are each assigned a pneumatic cylinder 32a to 32f as setting means. The piston rods of the pneumatic cylinders 32a to 32f can be moved in the direction indicated by double arrows. In this way there is a vertical displacement or adjustment of the opening rollers 5, 6, the grates 3, 4 and the pressure rollers 8a, 8b. The control device (not shown) assigned to the pneumatic cylinders 32a to 32f permits vertical displacement in such a way that any desired processing inclination (angle α) can be achieved. The housing 2, together with the opening rollers 5, 6, grates 3, 4 and pressure elements 8a, 8b, is movably mounted in the vertical direction on the tower of the bale opener. The opening rollers 5, 6, the grates 3, 4 and pressure rollers 8a, 8b are displaced relative to and independently of the housing 2.

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 (5, 6) are provided; the opener rollers (5, 6), which contain toothed discs or needles, cooperate with a grid (3, 4) the grid bars of which lie between the toothed discs or needles of the opener rollers (5, 6), the opening device being movable and the fibre bales being fixed and the teeth (5a, 6a) or the needles of the opener rollers (5, 6) cutting into the fibre bales simultaneously and from above, and the opener rollers (5, 6) moving towards one another in the region of the bale surface, characterised in that the opener rollers (5, 6) and/or the grid bars of the grid (3, 4) are adjustable vertically and relative to one another in such a manner that both on the forward stroke (B) and on the return stroke (A) during the take-off operation the teeth (5a, 6a) or needles of the opener rollers (5, 6) each cut to different depths into the fibre bales (1) in such a manner that uniform take-off can be achieved with the opener rollers (5, 6).
  2. Opening device according to claim 1, characterised in that at least one of the opener rollers (5, 6) is vertically displaceable.
  3. Opening device according to claim 1 or 2, characterised in that the opener rollers (5, 6) are arranged on a reversible rocker (11).
  4. Opening device according to any one of claims 1 to 3, characterised in that the opener rollers (5, 6) can be reversed after each complete forward (B) and return (A) stroke.
  5. Opening device according to any one of claims 1 to 4, characterised in that during a pass the particular opener roller (5, 6) that is arranged in front in the direction (A; B) of travel cuts deeper into the bales than does the opener roller (5, 6) that is arranged at the back.
  6. Opening device according to any one of claims 1 to 4, characterised in that the grids (3, 4) remain at the same height.
  7. Opening device according to any one of claims 1 to 6, characterised in that each opener roller (5, 6) has its own grid (3; 4), the free ends of the grid bars facing one another, and that adjusting means (13, 14) for the vertical displacement of the grids (3, 4) relative to one another are provided.
  8. Opening device according to any one of claims 1 to 7, characterised in that adjusting means (16, 17, 18) for the vertical displacement (z₁, z₂) of the opener rollers (5, 6) and of the grids (3, 4) are provided.
  9. Opening device according to any one of claims 1 to 8, characterised in that the opener rollers (5, 6) and the grids (3, 4) are pivotable about a common horizontal axis (18).
  10. Device according to any one of claims 1 to 9, characterised in that measuring devices (23) for measuring the power consumption of the opener rollers (5, 6) and/or for measuring the consumption of electrical current are associated with the opener rollers (5, 6), which measuring devices are electrically connected by way of a comparator (24) to a control device (26), downstream of which an actuator (16, 20) for actuating the adjusting device (11; 13, 14; 17, 18) for displacing the opener rollers (5, 6) or the grids (3, 4) is arranged.
  11. Device according to any one of claims 1 to 10, characterised in that the vertical displacement of the opener rollers (5, 6) and/or of the grids (3, 4) is effected during the take-off of the fibre flocks from the fibre bales (1).
  12. Device according to any one of claims 1 to 11, characterised in that a measuring transducer (23a, 23b) or the like associated with each of the drive motors (21, 22) for the opener rollers (5, 6) is used for measuring the current consumption.
  13. Device according to any one of claims 1 to 12, characterised in that a tachogenerator is associated with each of the opener rollers (5, 6).
  14. Device according to any one of claims 1 to 13, characterised in that an incremental rotation indicator comprising a rotary slotted disc (28) associated with the opener roller (5, 6) and a fixed sensor (29) is associated with each of the opener rollers (5, 6).
  15. Opening device according to any one of claims 1 to 14, characterised in that adjusting means (11; 20) for the vertical displacement of at least one of the opener rollers (5, 6) are provided.
  16. Device according to any one of claims 1 to 15, characterised in that the pressing rollers (8a, 8b, 8c) are displaceable in a vertical direction.
  17. Device according to any one of claims 1 to 16, characterised in that adjusting means (16, 17, 18; 32, 33, 34; 32b, 32e) for the displacement of at least one of the pressing rollers (8a, 8b, 8c) are provided.
  18. Device according to any one of claims 1 to 17, characterised in that the pressing rollers (8a, 8b, 8c) are displaceable and/or pivotable (17, 18) together with the housing (2).
  19. Device according to any one of claims 1 to 18, characterised in that the pressing rollers (8a, 8b, 8c) are displaceable together with the opener rollers (5, 6).
  20. Device according to any one of claims 1 to 19, characterised in that for the displacement of the opener rollers (5, 6) on the tower of the bale opener an internal toothed ring is provided with which a toothed wheel connected to the housing (2) or to the adjusting means (11, 12) engages.
EP89113305A 1988-08-02 1989-07-20 Apparatus for opening pressed fibre bales, e.g. cotton and cellulose wool bales Expired - Lifetime EP0358891B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3826201 1988-08-02
DE3826201 1988-08-02
DE3913929 1989-04-27
DE3913929A DE3913929C2 (en) 1988-08-02 1989-04-27 Opening device for opening pressed fiber bales, e.g. B. cotton and rayon bales u. the like

Publications (2)

Publication Number Publication Date
EP0358891A1 EP0358891A1 (en) 1990-03-21
EP0358891B1 true EP0358891B1 (en) 1993-09-29

Family

ID=25870736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113305A Expired - Lifetime EP0358891B1 (en) 1988-08-02 1989-07-20 Apparatus for opening pressed fibre bales, e.g. cotton and cellulose wool bales

Country Status (12)

Country Link
US (2) US5090091A (en)
EP (1) EP0358891B1 (en)
JP (1) JP2694022B2 (en)
CN (1) CN1018269B (en)
BR (1) BR8903862A (en)
CH (1) CH679588A5 (en)
DE (1) DE8908276U1 (en)
ES (2) ES2043980T3 (en)
FR (1) FR2635121B1 (en)
GB (1) GB2222606B (en)
IT (1) IT1231539B (en)
SU (1) SU1732818A3 (en)

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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.
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
DE4110074C2 (en) * 1991-03-27 2001-02-15 Truetzschler Gmbh & Co Kg Method for operating a bale opener, in particular for determining the upper bale limitation of textile fiber bales
DE4120818A1 (en) * 1991-06-24 1993-01-07 Truetzschler & Co METHOD AND DEVICE FOR REMOVING FIBER FLAKES FROM TEXTILE FIBER BALLS, eg FROM COTTON, CHEMICAL 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
IT1270620B (en) * 1994-07-14 1997-05-07 Marzoli & C Spa AUTOMATIC FEEDER FIBER IN BOW FROM FIBER BALES
IT1271661B (en) * 1994-07-14 1997-06-04 Marzoli & C Spa PERFECTED DEVICE FOR THE DETECTION OF FOREIGN BODIES IN THE FIBER BALES WORKED IN THE BALE OPENING MACHINES
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
IT1396418B1 (en) * 2009-11-16 2012-11-23 Marzoli Spa DEVICE AND METHOD FOR THE AUTOMATIC FIBER FIBER COLLECTION IN A LINE OF SPINNING.
CN102691137A (en) * 2012-06-19 2012-09-26 济南金力液压机械有限公司 Ginned cotton cleaning machine
NL2009261C2 (en) * 2012-08-01 2014-02-04 Trioliet Holding B V PROCESSING OF BLOCKS OR BALES OF FEED.
CN102926034A (en) * 2012-11-19 2013-02-13 吴江杰杰织造有限公司 Homotaxial flow cotton slitter
CN104294410B (en) * 2014-09-30 2016-11-23 泉州市中研智能机电研究院有限公司 A kind of cashmere fibre-opening unit having
CN105297185B (en) * 2015-11-20 2019-04-16 四川北方硝化棉股份有限公司 A kind of efficient purified cotton opener of opener
CN105780162A (en) * 2016-04-01 2016-07-20 三河市浩运盛跃碳纳米科技有限公司 Fiber pretreatment device
CN106350905A (en) * 2016-11-09 2017-01-25 上海华鸢机电有限公司 Double-beater cotton grasping arm swinging type cotton grasping device and cotton grasping method of double-beater cotton grasping arm swinging type cotton grasping device
CN106637540B (en) * 2017-02-22 2018-11-23 湖州东凯纺织有限公司 One kind is adjustable to grab cotton trolley
JP6469196B1 (en) * 2017-09-28 2019-02-13 東海精機株式会社 Opening device
CH714726A1 (en) * 2018-03-07 2019-09-13 Rieter Ag Maschf Low-abrasion for a bale opener.
CN108411409A (en) * 2018-05-24 2018-08-17 晋州市冠扬机械设备科技有限公司 A kind of cotton packet opener
CN109023597B (en) * 2018-10-11 2024-02-13 浙江盛安纺织有限公司 Full-automatic processing equipment of reciprocating bale plucker

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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
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Also Published As

Publication number Publication date
CH679588A5 (en) 1992-03-13
CN1018269B (en) 1992-09-16
FR2635121B1 (en) 1992-10-16
IT1231539B (en) 1991-12-17
FR2635121A1 (en) 1990-02-09
US5136753A (en) 1992-08-11
ES2043980T3 (en) 1994-01-01
BR8903862A (en) 1990-04-17
CN1040067A (en) 1990-02-28
ES2014844A6 (en) 1990-07-16
JP2694022B2 (en) 1997-12-24
SU1732818A3 (en) 1992-05-07
GB2222606A (en) 1990-03-14
JPH02160925A (en) 1990-06-20
EP0358891A1 (en) 1990-03-21
DE8908276U1 (en) 1989-12-14
GB8917596D0 (en) 1989-09-13
GB2222606B (en) 1992-09-23
IT8921204A0 (en) 1989-07-17
US5090091A (en) 1992-02-25

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