EP0606277B1 - Ouvreuse-melangeuse de balles - Google Patents

Ouvreuse-melangeuse de balles Download PDF

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Publication number
EP0606277B1
EP0606277B1 EP92919801A EP92919801A EP0606277B1 EP 0606277 B1 EP0606277 B1 EP 0606277B1 EP 92919801 A EP92919801 A EP 92919801A EP 92919801 A EP92919801 A EP 92919801A EP 0606277 B1 EP0606277 B1 EP 0606277B1
Authority
EP
European Patent Office
Prior art keywords
opening
blending device
milling head
suction
suction channel
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
EP92919801A
Other languages
German (de)
English (en)
Other versions
EP0606277A1 (fr
Inventor
Akiva C/O Jd Hollingsworth On Wheels Inc. Pinto
Günter Lucassen
Bernhard Bocht
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.)
Hollingsworth GmbH
Hergeth Hollingsworth GmbH
Original Assignee
Hollingsworth GmbH
Hergeth Hollingsworth GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hollingsworth GmbH, Hergeth Hollingsworth GmbH filed Critical Hollingsworth GmbH
Publication of EP0606277A1 publication Critical patent/EP0606277A1/fr
Application granted granted Critical
Publication of EP0606277B1 publication Critical patent/EP0606277B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres

Definitions

  • the invention relates to an opening and mixing device for fiber pressed bales with a continuous bale feed on a transport device, which feeds the fiber pressed bales to a removal surface, with a rail-guided milling head that can be moved back and forth over the removal surface, the transport plane of the transport device running at an angle to the removal level of the removal surface , and with a suction channel for the removed fiber flakes.
  • Such an opening and mixing device is known from DE-A-39 33 274, according to which the fiber pressed bales set up in rows of bales can be continuously pushed in the longitudinal direction of the bale template during processing.
  • the fiber pressed bales are fed to a removal surface, over which a rail-guided milling head is moved back and forth in a horizontal direction, the transport plane of the transport device running at an angle to the horizontal removal plane of the removal surface.
  • the flakes of fiber processed by the milling head are fed through a suction channel dissipated.
  • the known opening and mixing device according to DE-A-39 33 274 is particularly complex with regard to the mounting of the suction channel designed as a hose. Another disadvantage is that with a hose a high air resistance is induced on the transport stream, whereby the energy requirement for fiber transport increases considerably.
  • DE-C-36 37 580 shows a device for suctioning fiber material, in which the upper part of a suction device for a take-off roller is held in a rail-guided manner, the rail guide having a suction channel for the fiber / transport air flow to be discharged.
  • the device shown requires a separate holder and guide for the take-off roller and for the suction hood belonging to the suction device, which is arranged above the take-off roller. There are consequently separate costs for moving and guiding the milling device and for moving and guiding the upper part of the suction device.
  • the invention has for its object to reduce the space requirement and the structural complexity of an opening and mixing device of the type mentioned.
  • an opening and mixing device for fiber pressed bales with a continuous bale feed on a transport device which feeds the fiber pressed bales to a removal surface with a rail-guided milling head which can be moved back and forth over the removal surface, the transport plane of the transport device being at an angle to Removal plane of the removal surface runs, and with a suction channel for the removed fiber flakes, provided that the milling head is mounted on one side and without a tower on a single rail guide along the transport device in a boom extending over the width of the transport device, and that the rail guide as a hollow profile designed and usable as a suction channel.
  • the milling head is arranged in a cantilever extending across the width of the transport device, which is mounted on one side and without a tower on a single rail guide and can be moved along the transport device here.
  • Such a construction of the opening and mixing device allows inexpensive attachment of the rail guide, for. B. on the outside walls of a machine hall or on suitable supporting structures of a machine hall, with the result that the costs for a complex machine frame or the arrangement of the boom in a movable tower are eliminated, which means that the opening and mixing device's performance remains unchanged, considerably lower investment costs.
  • the space requirement is considerably reduced compared to conventional multi-bale openers, and at the same time a 24-hour reserve of the bale feed is guaranteed.
  • the rail guide is designed as a hollow profile in which the suction channel runs.
  • the use of the rail guide as a suction channel enables a further cost reduction, since no additional, e.g. telescopically variable in length suction channel is required and at the same time an inexpensive support structure is created for the boom.
  • the rail guide with integrated suction channel can in a simple manner, for. B. attached to a wall.
  • the rail guide has a support and drive element running in cross section at an angle between approximately 30 ° and 60 °, preferably 45 °.
  • the support and drive element allows an optimal mounting of the cantilever arm and at the same time serves to move the arm back and forth in a simple manner along the transport device.
  • the rail guide receives two cantilevers which can be moved back and forth independently of one another.
  • Both cantilevers can either be mounted on one side of the rail guide or on opposite sides of the rail guide, transport devices being provided on both sides of the rail guide.
  • the processing of the fiber pressed bales with the aid of two cantilevers advantageously enables the mixture of the removed fiber flakes to be improved, since each milling head can only work with half the quantity removed. With the same quantity of material removed, the material removal rate can be doubled.
  • the two brackets can also be uncorrelated the removal surface can be moved. If the booms are arranged on opposite sides of the suction channel, fiber flakes from two different bale templates can be mixed with one another, the mixing ratio of the fibers from both bale templates being adjustable as desired. For example, it is possible to have natural fibers on one side of the rail guide and synthetic fibers on the other side, or cotton fibers of different origins on both sides. In this way, the opening and mixing device allows a maximum of flexibility in the provision of different fiber mixtures, without having to stop production in order to replace the bale template. Another advantage is that with two bale feeds, even when the bale feeder is changed, the opening and mixing device does not need to be stopped.
  • the suction channel can be extracted from both ends. In this way, depending on the position of the boom, an additional mixture can be achieved by dividing the flake flow.
  • the rail guide is preferably fastened to free-standing supports or suspended from a ceiling structure.
  • the boom can have a milling head which can be pivoted about an axis running orthogonally to the removal surface. This makes it possible to move the milling head back and forth not at a right angle, but at an angle to the longitudinal axis of the bale template and, for example, during each pass Change the angular position to prevent lanes from being formed by the milling discs on the milling head.
  • the boom can have a milling head which can be pivoted about an axis running parallel to the suction channel or about a horizontal axis.
  • the upward swiveling milling head enables access to the milling drum in the event of malfunctions, without the bale template having to be removed.
  • the width of the transport device is adjustable and it has two transport chains for feeding the fiber pressed bales.
  • the end section of the transport device ends in a ramp tapering towards the removal surface. This ramp increases the delivery amount for the fiber pressed bales located on the ramp when the fiber pressed bales are fed through the transport device.
  • a protective wall is arranged on the side of the milling head facing away from the suction channel, which can be moved along the transport device with the milling head.
  • This protective wall prevents the respective fiber pressed bale arranged at the outer end of the boom from tipping over, prevents tufts of fiber from falling off and at the same time offers accident protection.
  • the protective wall is moved back and forth on rails together with the milling head, whereby the milling head can slide up and down on the protective wall.
  • the opening and mixing device for fiber pressed bales 2 shown in FIG. 1 consists of a rail-guided milling head 10 arranged in a cantilever 11 which extends over a removal surface 6 at an angle to the horizontal and to the transport plane of a transport device 4.
  • the transport device 4 consists of at least one transport path 5, which allows a forward and backward movement of the bale template consisting of a plurality of fiber pressed bales 2 arranged one behind the other and possibly next to one another.
  • the end section of the transport device 4 consists of a ramp 26 on which the fiber pressed bales 2 are pushed up due to the fiber pressed bales 2 advancing on the transport path 5.
  • ramp 26 In the area of ramp 26, which increases towards the removal surface 6, there is an increased infeed of the fiber pressed bales 2 located on the ramp 26.
  • the opening and mixing device is shortened by the ramp 26.
  • the milling head 10 has a suction hood 28, in which the fiber flakes removed during processing of the bale surface are fed to a suction channel 12 which at the same time forms a rail guide 14 for the boom 11 containing the milling head 10.
  • the boom 11 is thus only movably supported on one side on the rail guide 14 combined with the suction channel 12 along the transport device 4.
  • the boom 11 with the milling head 10 can be moved via the control according to a predetermined program over the removal surface 6.
  • the milling head 10 At the start of a new bale template, when there are only a few bales on the transport device 4, the milling head 10 only moves over the part of the removal surface 6 in which the fiber pressed bales 2 are present.
  • the boom 11 can be provided with suitable sensors.
  • a suction connection 38 is provided on one side on the suction channel 12 in FIG. 1, but 12 suction connections can also be provided on both ends of the suction channel.
  • the angle of inclination to the horizontal of the removal plane 8, in which the removal surface 6 lies, is approximately 5 ° to 10 °, in the exemplary embodiment in FIG. 1, 6 °.
  • the ramp angle of ramp 26 also has an angle of increase between 5 ° to 10 °.
  • a protective wall 36 for the fiber pressed bales 2 is moved synchronously with the boom 11 on rails, so that no fiber slugs can fall from the fiber pressed bales 2 in the area of the milling head 10, at the same time being an effective one Accident protection is achieved.
  • a support wall 42 can run over the entire length of the transport device 4, which guides the fiber pressed bale 2 laterally.
  • the protective wall 36 can be provided with windows to enable an inspection of the milling area during operation.
  • the boom 11 can be guided on the protective wall 36 like a backdrop in order to be able to move up and down relative to the protective wall 36.
  • the boom 11 is not supported on the protective wall 36 in the vertical direction.
  • the rail guide 14 with the integrated suction channel 12 is attached to a suitable support structure, for. B. on outer walls of the machine hall or on supports of the machine hall construction or, as shown in FIG. 1, on free-standing supports 20, which enable free-standing installation within a machine hall.
  • Cable strands can run in a rail-shaped hollow profile 40 arranged on the supports 20 parallel to the suction channel.
  • FIG. 2 shows a plan view of the opening and mixing device according to FIG. 1 with a single boom 11.
  • the transport tracks 5 of the transport device 4 end at the ramp 26, at the end of which the complete processing of a fiber pressed bale is completed.
  • Figure 3 shows an embodiment in plan view with two arms 11 which can be moved independently of one another via the bale template.
  • FIG. 4 shows a further exemplary embodiment with two cantilevers 11, which, however, are arranged on both sides of a support structure and enable a mixing of the removed fiber flakes from two different bale templates which are fed continuously on two transport devices 4.
  • the arms 11 can either be moved independently of one another or mechanically coupled in such a way that they move in opposite directions. In this way, when one boom moves down, the other can be pulled up, thereby saving drive energy.
  • the use of two arms 11 has the further advantage that the removed fiber flakes are smaller in size and that a higher removal rate can be used.
  • bale feeds on both sides of the opening and mixing device, so that different fiber batches can be fed to the subsequent cards or the like immediately with one installation as required and without changing the bale feeder.
  • two parallel suction channels 12 are provided, but can be brought together at their ends.
  • Figure 5 shows schematically the boom 11 with the milling head 10 in cross section.
  • the boom 11 can be pivoted about an axis running orthogonally to the removal plane 8 and enables the boom 11 to be set either in a specific angular position from the orthogonal to the suction channel 12 or the transport device 4. It is also possible to pivot the boom 11 during the processing of the fiber pressed bales 2 by an orthogonal to the removal plane 8 over the removal surface 6.
  • the processing of the fiber pressed bales with an inclined or oscillating arm 11 has the effect that the milling disks 31 arranged next to one another on the milling drum 30 do not incorporate any lanes into the surface of the fiber pressed bales. It is also possible to change the angular position of the boom 11 only once each time it is crossed.
  • the boom 11 can also be pivoted upwards about a horizontal axis or axis parallel to the suction channel 12, so that in the event of malfunctions, after the protective wall 36 has been moved, the area under the boom 11 is accessible without the bale template having to be moved back.
  • the milling head 10 has a single milling drum 30 which can be rotated in both directions of rotation and which is provided with a plurality of milling disks 31 arranged next to one another with symmetrically interlocking teeth 35.
  • the interlocking of the teeth 35 causes an air scoop effect.
  • the milling drum 30 can also have only three teeth 35 projecting from one another at an angle of 120 °.
  • the milling head 10 does not require any additional pressure rollers on both sides of the single milling drum 30, but only a grate 34, in which a suction slot 32 is arranged on one side of the milling drum 30.
  • a suction hood 28 - viewed in cross section - offset laterally from the milling drum axis is arranged, via which the removed fiber flakes are fed to the suction duct 12.
  • No air intake slot is provided on the side of the suction hood 28.
  • the engagement circle of the milling disks 31 is flush with the lower edge of the grate 34.
  • FIG. 6 shows a cross section through the rail guide 14 with an integrated suction channel 12.
  • the suction channel 12 can have an essentially rectangular cross section and is closed at the top in a suction slot 24 with a flexible cover 22 which is only kept open in the area of the suction hood 28 .
  • a support and drive element 15 which extends at an angle of preferably 45 °, is arranged at the lower end of the suction channel 12, on which the boom 11 has a plurality of rollers 16, which on the Roll support and drive element 15 is supported.
  • a further support and drive element 17 is provided in the form of a protruding rim, which projects upwards in parallel to the suction channel 12.
  • the arm 11 engages behind this further support and drive element 17 with further rollers 18, so that the arm 11 is mounted twice on the rail guide 14 via the rollers 16, 18.
  • the rollers 16 or 18 or 16 and 18 can be connected to a drive motor 44 arranged in the boom 11 in order to move the boom 11 back and forth along the rail guide 14.
  • the weight of the boom 11 is preferably applied to the driven rollers in order to ensure a slip-free transport of the boom 11.
  • a corresponding rail profile 19 can be provided on the hollow profile 40, on which, as shown in FIG. 7, rollers 18 of the arm 11 rotating about an axis orthogonal to the suction channel 12 roll.
  • the flexible cover 22 in the suction slot 24 of the suction channel 12 can either be lifted from the suction channel 12 in the area of the milling head 10 by deflecting rollers and guided around over the suction hood 28 to prevent the fiber flocks from entering the suction hood 28 in to enable the suction channel 12.

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

Abstract

Une ouvreuse-mélangeuse de balles de fibres comprimées (2) comprend un dispositif d'amenée en continu des balles sur un dispositif convoyeur (4) qui amène les balles de fibres comprimées (2) à une surface d'enlèvement (6), et une tête porte-lames (10) guidée dans des rails et animée d'un mouvement alternatif au-dessus de la surface d'enlèvement (6). Le plan de transport du dispositif convoyeur (4) forme un angle avec le plan d'enlèvement (8) de la surface d'enlèvement (6). Les flocons de fibres enlevés sont éliminés par un canal d'aspiration (12). La tête porte-lames (10) est montée mobile, sur un seul côté, sur un seul rail de guidage (14) situé le long du dispositif convoyeur (4), dans un bras en porte-à-faux (11) qui s'étend sur toute la largeur du dispositif convoyeur (4).

Claims (21)

  1. Ouvreuse et mélangeuse pour balles de fibres comprimées (2) comportant un acheminement continu de balles sur un dispositif transporteur (4) qui achemine les balles de fibres comprimées (2) à une surface d'enlèvement (6), et qui comprend une tête fraiseuse (10) guidée par des rails, qui se déplace en mouvement alternatif au-dessus de la surface d'enlèvement (6), le plan de transport du dispositif transporteur (4) formant un angle avec le plan d'enlèvement (8) de la surface d'enlèvement (6), et comprenant un canal d'aspiration (12) pour aspirer les flocs de fibres enlevés, caractérisée en ce que la tête fraiseuse (10) est montée dans une flèche (11) s'étendant sur toute la largeur du dispositif transporteur (4), et est montée sans tour pour circuler le long du dispositif transporteur (4) sur un unique rail-guide (14), et en ce que le rail-guide (14) est constitué par un profilé creux et peut servir de canal d'aspiration (12).
  2. Ouvreuse et mélangeuse selon la revendication 1, caractérisée en ce que le rail-guide (14) présente un élément d'appui et d'entraînement (15) s'étendant, en section transversale, sous un angle compris entre environ 30° et 60°, de préférence égal à 45°.
  3. Ouvreuse et mélangeuse selon l'une des revendications 1 à 2, caractérisée en ce que le rail-guide (14) reçoit deux flèches (11) pouvant se déplacer en va-et-vient indépendamment l'une de l'autre.
  4. Ouvreuse et mélangeuse selon l'une des revendications 2 à 3, caractérisée en ce que le canal d'aspiration (12) peut être aspiré par les deux extrémités.
  5. Ouvreuse et mélangeuse selon l'une des revendications 1 à 4, caractérisée en ce que le rail-guide (14) est fixé sur des appuis isolés ou suspendus (20) et en ce que, sur chaque côté des appuis (20) sont disposés une flèche (11) et un dispositif transporteur correspondant (4).
  6. Ouvreuse et mélangeuse selon la revendication 5, caractérisée en ce que les flèches (11) sont couplées l'une à l'autre et peuvent se déplacer l'une en sens inverse de l'autre.
  7. Ouvreuse et mélangeuse selon l'une des revendications 1 à 6, caractérisée en ce que la flèche (11) présente une tête fraiseuse (10) qu'on peut faire pivoter autour d'un axe orthogonal à la surface d'enlèvement (6).
  8. Ouvreuse et mélangeuse selon l'une des revendications 1 à 7, caractérisée en ce que la flèche (11) présente une tête fraiseuse (10) qui peut pivoter autour d'un axe s'étendant parallèlement au canal d'aspiration (12).
  9. Ouvreuse et mélangeuse selon l'une des revendications 1 à 8, caractérisée en ce que la largeur de voie du dispositif transporteur (4) peut être adaptée à la largeur des balles de fibres comprimées (2).
  10. Ouvreuse et mélangeuse selon l'une des revendications 1 à 9, caractérisée en ce que le segment terminal du dispositif transporteur (4) présente une rampe (26) orientée vers la surface d'enlèvement (6).
  11. Ouvreuse et mélangeuse selon l'une des revendications 1 à 10, caractérisée en ce que la tête fraiseuse (10) possède une fraise cylindrique unique (30).
  12. Ouvreuse et mélangeuse selon l'une des revendications 1 à 11, caractérisée en ce que la tête fraiseuse (10) comporte vue en section transversale une hotte aspirante (28) décalée latéralement par rapport à l'axe de la fraise cylindrique, et qui envoie les flocs de fibres enlevés au canal d'aspiration (12).
  13. Ouvreuse et mélangeuse selon l'une des revendications 11 à 12, caractérisée en ce que la fraise cylindrique (30) peut être entraînée dans les deux sens de rotation.
  14. Ouvreuse et mélangeuse selon l'une des revendications 12 à 13, caractérisée en ce qu'une unique fente d'aspiration (32) qui s'étend parallèlement à la fraise cylindrique (30) est prévue dans la tête fraiseuse (10), sur le côté de la tête fraiseuse (10) qui est à l'opposé de la hotte aspirante (28).
  15. Ouvreuse et mélangeuse selon l'une des revendications 1 à 14, caractérisée en ce que les balles de fibres comprimées (2) peuvent être entraînées vers l'avant et vers l'arrière en direction de la surface d'enlèvement (8) par le dispositif transporteur (4).
  16. Ouvreuse et mélangeuse selon l'une des revendications 1 à 13, caractérisée en ce que le canal d'aspiration (12) présente une fente d'aspiration (24) munie d'un recouvrement flexible (22) qui ne maintient la fente d'aspiration (24) ouverte que dans la région du débouché de la hotte aspirante (28).
  17. Ouvreuse et mélangeuse selon l'une des revendications 1 à 16, caractérisée en ce qu'une paroi protectrice (36) est disposée sur le côté de la tête fraiseuse (10) qui est à l'opposé du canal d'aspiration (12), et peut se déplacer le long du dispositif transporteur (4) avec la tête fraiseuse (10).
  18. Ouvreuse et mélangeuse selon l'une des revendications 1 à 17, caractérisée en ce que la flèche (11) est munie, sur ses côtés longitudinaux, de capteurs qui détectent la présence des balles de fibres comprimées (2) et en ce que la flèche (11), en réponse au signal de détection des capteurs, balaie exclusivement la partie de la surface d'enlèvement (6) dans laquelle se trouvent des balles de fibres comprimées (2).
  19. Ouvreuse et mélangeuse selon l'une des revendications 1 à 18, caractérisée en ce que le rail-guide (14) est fixé à un mur.
  20. Ouvreuse et mélangeuse selon l'une des revendications 1 à 19, caractérisée en ce que l'entraînement (44) de la flèche (11) est agencé dans la flèche (11).
  21. Ouvreuse et mélangeuse selon l'une des revendications 1 à 20, caractérisée en ce que l'entraînement (44) est constitué par un entraînement à galet, le galet d'entraînement (16) étant chargé par le poids de la flèche (11).
EP92919801A 1991-09-20 1992-09-18 Ouvreuse-melangeuse de balles Expired - Lifetime EP0606277B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4131424 1991-09-20
DE4131424A DE4131424C1 (fr) 1991-09-20 1991-09-20
PCT/EP1992/002164 WO1993006272A1 (fr) 1991-09-20 1992-09-18 Ouvreuse-melangeuse de balles

Publications (2)

Publication Number Publication Date
EP0606277A1 EP0606277A1 (fr) 1994-07-20
EP0606277B1 true EP0606277B1 (fr) 1995-12-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92919801A Expired - Lifetime EP0606277B1 (fr) 1991-09-20 1992-09-18 Ouvreuse-melangeuse de balles

Country Status (5)

Country Link
US (1) US5515577A (fr)
EP (1) EP0606277B1 (fr)
JP (1) JP3346418B2 (fr)
DE (2) DE4131424C1 (fr)
WO (1) WO1993006272A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023073730A1 (fr) * 2021-10-25 2023-05-04 Lakshmi Machine Works Limited Fouleuse à portique pour fibre discontinue

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JP3346418B2 (ja) 2002-11-18
EP0606277A1 (fr) 1994-07-20
US5515577A (en) 1996-05-14
DE4131424C1 (fr) 1993-01-14
WO1993006272A1 (fr) 1993-04-01
JPH06511045A (ja) 1994-12-08
DE59204704D1 (de) 1996-01-25

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