EP0022472B1 - Preparation machine for spinning - Google Patents

Preparation machine for spinning Download PDF

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Publication number
EP0022472B1
EP0022472B1 EP80103176A EP80103176A EP0022472B1 EP 0022472 B1 EP0022472 B1 EP 0022472B1 EP 80103176 A EP80103176 A EP 80103176A EP 80103176 A EP80103176 A EP 80103176A EP 0022472 B1 EP0022472 B1 EP 0022472B1
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EP
European Patent Office
Prior art keywords
opening
roll
feed
shoe
suction
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EP80103176A
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German (de)
French (fr)
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EP0022472A1 (en
Inventor
Robert Demuth
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT80103176T priority Critical patent/ATE3727T1/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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/20—Feed rollers; Takers-in
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/76—Stripping or cleaning carding surfaces; Maintaining cleanliness of carding area
    • D01G15/80—Arrangements for stripping cylinders or rollers
    • D01G15/805—Arrangements for stripping cylinders or rollers by suction or blowing

Definitions

  • the present invention relates to a spinning preparation machine, in particular a carding machine, with a feed roller together with a body carrying the associated feed trough, a loosening roller with tips and a loosening area for the fiber material located between the feed roller and the loosening roller and one between the through the tapering surface of the Loosening roller and the surface of the feed roller formed converging space located suction device.
  • open-end spinning is becoming more and more popular because it is more economical than the older ring spinning process in certain yarn count ranges.
  • open-end spinning has the disadvantage that it is sensitive to dirt present in the fiber slivers to be fed. It is primarily the contaminants consisting of micro dust and short fibers that accumulate on the inner wall of the rotor during the spinning process and adhere there, which leads to the formation of an increasingly uneven yarn and ultimately to yarn breaks.
  • a suction device on cards is already known (DE-AS 1685552), in which a vacuum hood with an intake slot facing the licker-in roller is arranged directly above the feed roller.
  • the hood is intended to suck off the fibers that have adhered to the corrugated feed roller, in that the feed roller is swept from both sides by air flowing into the hood.
  • only the fibers released by sharp deflection of the lap wadding at the end of the dining table trough are to be sucked off by means of the suction slot, which is desirable because of their reusability.
  • the invention has for its object to overcome the disadvantages mentioned and to free the fiber material as effectively as possible from the annoying dust in the subsequent processes and to prevent it from freely escaping into the atmosphere of the work space.
  • suction opening of the suction device which is formed on the one hand by a nose of the feed bowl body which extends up to the loosening area and extends along the feed bowl, and on the other hand by a somewhat less protruding bowl plate running at a distance, in the converging ones Space up to the loosening area.
  • This design is advantageous in that the suction air flow can enter directly on the nose, which increases its effectiveness and allows a very simple construction.
  • a further development is that the loosening area formed with a further loosening roller is connected to the suction device via a channel formed between a cover and the surface of the first loosening roller. This makes it possible to detect another source of dust without additional effort, such as special channels or cover hoods.
  • the feed trough body can advantageously contain air passage passages which are lined up along the length of the feed trough and end at the suction opening and which open into a common air vent housing. This is advantageous because it serves for better distribution and stabilization of the suction flow within the body, so that the suction effect is uniform everywhere.
  • the feed trough body together with the suction device can be moved away as a unit from the feed roller on a fixed path.
  • a feed roller 1 (FIG. 1) is provided on its outer surface with flutes, corrugations, coarse teeth, tips 2 or the like and can be driven in the direction of arrow A.
  • a feed trough 3 located above the feed roller 1, worked out of a trough body 4, and a trough plate 5 attached thereto extend parallel to one another in the axial direction. Between the feed roller 1 and the trough 3 to be conveyed to the fiber material '6, for example is in the form of a winding-lap sheet.
  • a loosening roller 7 is provided with fine teeth or tips 8; it can be driven in the direction of the arrow B, ie opposite to the direction of rotation of the feed roller 1. In operation, the roller 7 has a much greater circumferential speed than the roller 1.
  • the trough body 4 has a nose 9 that extends approximately to the location of the smallest distance E of the two rollers 1 and 7. Between this and the somewhat less protruding trough plate 5 There is an air extraction duct 11 with the suction opening 12 in the converging space between the cylindrical surface of the loosening roller 7 tapering to a loosening area 10 and the cylindrical surface of the loosening roller 1 also tapering into this area At this point, the loosening roller 7 lying directly opposite and the feed roller 1 begins, the fiber material presented is detected and loosened in the process.
  • the loosening roller 7 also interacts with a reel 13, which is provided with even finer teeth or tips and works as a second loosening roller, for example a card which is not fully shown in FIG. 1 and which rotates in the direction of arrow C.
  • the increasing lengths of arrows A, B, C are intended to indicate that the circumferential speed of each subsequent cylinder is greater than that of the previous one.
  • a suction arrangement comprises an air extraction housing 15 adjoining it and extending along the feed trough 3, to which an approximately equal-length suction nozzle 1'6 which distributes the vacuum and is connected via a flexible connection or extendable line 17 is connected to a vacuum generator (not shown).
  • the trough body 4, the air vent housing 15 and the suction nozzle 16 are assembled into one unit and carried by support arms 18 (only one arm visible in FIG. 1), which can be pivoted about a bearing 19 which is fixed to the frame, i.e. the unit can be moved away on a fixed track. In operation, the unit is of course secured against the machine frame (not shown).
  • the trough body 4 together with the parts 15, 1'6 can be folded away from the feed roller 1. This enables easy access to parts 1, 3, 7 and 11, e.g. for the purpose of inspection and cleaning of the same.
  • the trough body has 4 holding members 22 (FIG. 2) in the form of ribs.
  • the trough plate 5 is detachably screwed to this by means of screws 23.
  • the air exhaust duct 11 is thus divided along the feed trough 3 into a plurality of individual air passages 24, each of which is laterally delimited by two adjacent holding members 22. All passages 24 lead transversely between the body 4 and the plate 5 to the air vent housing 15.
  • the fiber material 6 is pressed by the feed roller 1 in the trough 3, released by the trough 3, whereby it springs open due to the inherent elasticity. In the loosening area it is then loosened by roller 7 and pulled apart. A substantial part of the impurities present in the fiber material 6, in particular fine dust adhering to this (micro dust), is released. Dirt that is not released is loosened to such an extent by the fiber material 6 that it can be released in one of the next loosening areas.
  • the air moving with the rapidly rotating cylindrical surface of the loosening roller 7 in the channel 21 is prevented from passing through the narrowest point E between the two rollers at the loosening area 10 because of the small distance between the surfaces of the two rollers 1 and 7 and the expanded fiber material lying between them .
  • the released ver Impurities are thus detected by the suction air flow originating from the suction opening 12 and then transported away with the air moving through the air extraction duct 11 and the suction arrangement formed from the parts 15, 16 and, after the impurities have been filtered off, reach the outside.
  • the suction effect emanating from the suction opening 12 is of such a strength that the air supplied between the loosening roller 7 and the cover 20 to the loosening area 10 is sucked off completely, since then a build-up of a dynamic pressure in front of the loosening area 10 and thus an axial one Drainage and lateral escape of polluted air into the factory hall avoided, or a special seal can be dispensed with.
  • the fiber material When changing over from the loosening roller 7 to the reel 13 in the loosening area 14, the fiber material is loosened again, whereby any other previously loosened impurities are removed. These are carried along with the air flow flowing in the connecting duct 21 and, after being sucked into the duct 11, also conveyed away by the suction arrangement (parts 15, 16). A separate channel outside the cover 20 can thus be dispensed with.
  • the device according to the invention is advantageous insofar as the feed trough serving for fiber feeding is fed into the converging space between the feed roller and the loosening roller, e.g. the licker-in roller of a carding machine, and the suction opening of this channel is thereby brought close to the dust development point.
  • this arrangement can decisively reduce or completely suppress the lateral exit of the polluted air carried by the loosening roller.

Abstract

The converging space between the moving-in or inbound surface of a loosening roll and the surface of a feed roll contains a suction duct, which is brought into close vicinity of the fibre loosening zone located between the two rolls, and which is used for sucking off of dust released in this zone. The suction duct is supported by the body forming the fibre feeder trough. Detrimental deposits of impurities in the subsequent processes, e.g. in the open-end spinning rotors, thus are greatly reduced.

Description

Die vorliegende Erfindung bezieht sich auf eine Spinnreivorbereitungsmaschine, insbesondere Karde, mit einer Speisewalze samt einem die zugeordnete Speisemulde tragenden Körper, einer mit Spitzen besetzten Auflockerungswalze und einem zwischen der Speisewaize und der Auflockerungswalze befindlichen Auflockerungsbereich für das Fasermaterial und einer zwischen dem durch die zulaufende Oberfläche der Auflockerungswalze und der Oberfläche der Speisewalze gebildeten konvergierenden Raum befindlichen Saugeinrichtung.The present invention relates to a spinning preparation machine, in particular a carding machine, with a feed roller together with a body carrying the associated feed trough, a loosening roller with tips and a loosening area for the fiber material located between the feed roller and the loosening roller and one between the through the tapering surface of the Loosening roller and the surface of the feed roller formed converging space located suction device.

Beim Spinnen von Stapelfasergarnen setzt sich das Offenend-Spinnen immer mehr durch, weil dieses in gewissen Garnnummerbereichen wirtschaftlicher ist als das ältere Ringspinnverfahren. Insbesondere bei der Verarbeitung von Naturfasern weist das Offenend-Spinnen jedoch den Nachteil auf, dass es auf in den zuzuführenden Faserbändern vorhandenen Schmutz empfindlich reagiert. Es sind vor allem die aus Mikrostaub und Kurzfasern bestehenden Verunreinigungen, welche sich beim Spinnprozess an der Innenwand des Rotors ansammeln und dort haften bleiben, was zur Bildung eines zunehmend ungleichmässigen Garnes und schliesslich zu Fadenbrüchen führt.When spinning staple fiber yarns, open-end spinning is becoming more and more popular because it is more economical than the older ring spinning process in certain yarn count ranges. However, in particular when processing natural fibers, open-end spinning has the disadvantage that it is sensitive to dirt present in the fiber slivers to be fed. It is primarily the contaminants consisting of micro dust and short fibers that accumulate on the inner wall of the rotor during the spinning process and adhere there, which leads to the formation of an increasingly uneven yarn and ultimately to yarn breaks.

Es hat nicht an Bemühungen gefehlt, in der Putzerei und Karderie Verunreinigungen des Fasermaterials wirkungsvoll zu beseitigen. Diese Massnahmen genügen jedoch nicht, den für das Offenend-Spinnen erforderlichen, geringen Gehalt an Verunreinigungen des Fasermateriais zu erreichen.There has been no shortage of efforts to effectively remove impurities in the fiber material in the blow room and carding machine. However, these measures are not sufficient to achieve the low impurity content of the fiber material required for open-end spinning.

Bei einer bekannten Karde (GB-PS 791 339) mündet, in Drehrichtung der Auflockerungswalze (Vorreisserwalze) gesehen, nach der Muldennase, um die die Faserbahn dargeboten wird, eine Luftzuführöffnung ein, durch welche Luft in das Innere der perforierten Auflockerungswalze gesaugt wird. Durch die in Richtung auf die Auflockerungswalze strömende Luft wird bewirkt, dass das bereits von der Vorreisserwalze übernommene, auf deren Garnitur lagernde Fasermaterial in die Garnitur hinein gedrückt und dort verdichtet wird, so dass Verunreinigungen in demselben festgehalten werden.In a known card (GB-PS 791 339), seen in the direction of rotation of the loosening roller (licker-in roller), an air supply opening opens after the trough nose around which the fiber web is presented, through which air is sucked into the interior of the perforated loosening roller. The air flowing in the direction of the loosening roller has the effect that the fiber material which has already been taken over by the licker-in roller and is stored on its clothing is pressed into the clothing and compressed there, so that impurities are retained therein.

Es ist auch bereits eine Absaugvorrichtung an Karden bekannt (DE-AS 1685552), bei der unmittelbar über der Speisewalze eine Unterdruckhaube mit einem der Vorreisserwalze zugewandten Einsaugschlitz angeordnet ist. Die Haube soll dazu dienen, die an der geriffelten Speisewalze haften gebliebenen Fasern abzusaugen, indem die Speisewalze von beiden Seiten von in die Haube fliessender Luft bestrichen wird. Ferner sollen lediglich die durch scharfe Umlenkung der Wickelwatte am Ende der Speisetischmulde frei gegebenen Fasern mittels des Einsaugschlitzes abgesaugt werden, was wegen deren Wiederverwendbarkeit erwünscht ist. Hingegen vermag eine solche Absaugung den beim Vorbeistreichen der Auflockerungswalze vom Fasermaterial frei werdenden Schmutz und Staub nicht zu beseitigen, weil durch die am Ende der Mulde in Umlaufrichtung scharf umgebogene, sich hier aufweitende Faserwatte eine Drosselstelle bildet. Diese setzt die Wirkung des Saugstromes bis zur Auflockerungszone zu stark herab, denn letztere befindet sich erheblich unter der Umlenkstelle.A suction device on cards is already known (DE-AS 1685552), in which a vacuum hood with an intake slot facing the licker-in roller is arranged directly above the feed roller. The hood is intended to suck off the fibers that have adhered to the corrugated feed roller, in that the feed roller is swept from both sides by air flowing into the hood. Furthermore, only the fibers released by sharp deflection of the lap wadding at the end of the dining table trough are to be sucked off by means of the suction slot, which is desirable because of their reusability. On the other hand, such a suction cannot remove the dirt and dust that is released from the fiber material when the loosening roller passes by, because the fiber wadding which is sharply bent in the circumferential direction at the end of the trough and expands here forms a throttle point. This reduces the effect of the suction flow to the loosening zone too much, because the latter is located considerably below the deflection point.

Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile zu überwinden und das Fasermaterial möglichst wirksam vom in den Nachfolgeprozessen sich lästig auswirkenden Staub zu befreien und diesen vom freien Austritt in die Atmosphäre des Arbeitsraumes abzuhalten.The invention has for its object to overcome the disadvantages mentioned and to free the fiber material as effectively as possible from the annoying dust in the subsequent processes and to prevent it from freely escaping into the atmosphere of the work space.

Diese Aufgabe wird dadurch gelöst, dass die Einsaugöffnung der Saugeinrichtung, die einerseits durch eine bis an den Auflockerungsbereich heran vorstossende und längs der Speisemulde sich erstreckende Nase des Speisemuldenkörpers und andererseits durch eine in einem Abstand verlaufende etwas weniger weit vorstossende Muldenplatte gebildet ist, in den konvergierenden Raum bis an den Auflockerungsbereich heranreicht.This object is achieved in that the suction opening of the suction device, which is formed on the one hand by a nose of the feed bowl body which extends up to the loosening area and extends along the feed bowl, and on the other hand by a somewhat less protruding bowl plate running at a distance, in the converging ones Space up to the loosening area.

Durch diese Massnahme wird erreicht, dass der Saugluftstrom unmittelbar über dem Auflokkerungsbereich seine volle Wirkung entfalten kann und der dort vorhandene Unterdruck an der Auflockerungswalze keinen Aufbau eines Staudruckes zulässt, der ein seitliches Austreten der von letzterer mitgerissenen verschmutzten Luft zulässt.This measure ensures that the suction air flow can develop its full effect immediately above the loosening area and that the negative pressure present there on the loosening roller does not allow the build-up of a dynamic pressure that allows the polluted air entrained by the latter to escape laterally.

Diese Ausbildung ist insofern vorteilhaft, als dadurch der Saugluftstrom unmittelbar an der Nase eintreten kann, was dessen Wirksamkeit steigert und einen sehr einfachen konstruktiven Aufbau zulässt.This design is advantageous in that the suction air flow can enter directly on the nose, which increases its effectiveness and allows a very simple construction.

Eine Weiterbildung besteht darin, dass der mit einer weiteren Auflockerungswalze gebildete Auflockerungsbereich über einen zwischen einer Abdeckung und der Oberfläche der ersten Auflockerungswalze gebildeten Kanal mit der Saugeinrichtung verbunden ist. Hierdurch ist es möglich, ohne zusätzlichen Aufwand, wie besondere Kanäle oder Abdeckungshauben, auch noch eine weitere Staubquelle zu erfassen.A further development is that the loosening area formed with a further loosening roller is connected to the suction device via a channel formed between a cover and the surface of the first loosening roller. This makes it possible to detect another source of dust without additional effort, such as special channels or cover hoods.

Der Speisemuldenkörper kann in vorteilhafter Weise über die Länge der Speisemulde aneinander gereihte, an der Einsaugöffnung endende Luftdurchlassgänge enthalten, welche in ein gemeinsames Luftabzugsgehäuse münden. Dies ist vorteilhaft, weil dies zur besseren Verteilung und Stabilisierung der Saugströmung innerhalb des Körpers dient, so dass die Saugwirkung überall gleichmässig wirkt.The feed trough body can advantageously contain air passage passages which are lined up along the length of the feed trough and end at the suction opening and which open into a common air vent housing. This is advantageous because it serves for better distribution and stabilization of the suction flow within the body, so that the suction effect is uniform everywhere.

In einer weiteren Ausgestaltung der Erfindung kann der Speisemuldenkörper samt Saugeinrichtung als Einheit von der Speisewalze auf einer festen Bahn wegfahrbar sein.In a further embodiment of the invention, the feed trough body together with the suction device can be moved away as a unit from the feed roller on a fixed path.

Dies gestattet auf handhabungsmässig einfache Weise den konvergierenden Raum zwischen den Walzen für Wartungszwecke freizulegen und auch die Durchgänge im Speisemuldenkörper zu überprüfen und zu reinigen.This allows the converging space between the rollers to be exposed for maintenance purposes in a simple manner in terms of handling and also to check and clean the passages in the bowl body.

Die Erfindung sei anhand eines illustrierten Ausführungsbeispiels näher erläutert. Es zeigt:

  • Fig. 1 einen Querschnitt längs der Linie I-I von Fig. durch eine Karde mit einer Anordnung zur Schmutzabsaugung,
  • Fig. 2 einen Schnitt entlang der Linie 11-11 von Fig. 1.
The invention will be explained in more detail using an illustrated embodiment. It shows:
  • 1 shows a cross section along the line II of FIG. 1 through a card with an arrangement for dirt extraction,
  • FIG. 2 shows a section along the line 11-11 of FIG. 1.

Eine Speisewalze 1 (Fig. 1) ist auf ihrer Mantelfläche mit Kanneluren, Riffelungen, groben Zähnen, Spitzen 2 oder dergleichen versehen und in der Richtung des Pfeiles A antreibbar. Eine über der Speisewalze 1 befindliche Speisemulde 3, herausgearbeitet aus einem Muldenkörper 4,und eine daran befestigte Muldenplatte 5 erstrecken sich parallel zueinander in axialer Richtung. Zwischen der Speisewalze 1 und der Mulde 3 befindet sich das zu fördernde Fasermaterial '6, z.B. in Form einer Wickel-Wattebahn. Eine Auflockerungswalze 7 ist mit feinen Zähnen bzw. Spitzen 8 versehen; sie ist in Richtung des Pfeiies B, d.h. entgegengesetzt zur Drehrichtung der Speisewalze 1, antreibbar. Bei Betrieb weist die Walze 7 eine viel grössere Umfangsgeschwindigkeit auf als die Walze 1. Der Muldenkörper 4 besitzt eine bis annähernd an die Stelle des kleinsten Abstandes E der beiden Walzen 1 und 7 heranreichende Nase 9. Zwischen dieser und der etwas weniger weit vorstossenden Muldenplatte 5, also im konvergierenden Raum zwischen der einem Auflockerungsbereich 10 zulaufenden zylindrischen Oberfläche der Auflockerungswalze 7 und der ebenfalls diesem zulaufenden zylindrischen Oberfläche der Speisewalze 1, befindet sich ein Luftabzugskanal 11 mit der Einsaugöffnung 12. Im Auflockerungsbereich 10, welcher etwas vor der Stelle E zwischen der an dieser Stelle direkt gegenüber liegenden Auflockerungswalze 7 und der Speisewalze 1 beginnt, wird das dargebotene Fasermaterial erfasst und dabei aufgelokkert. Unmittelbar nach Freigabe durch die Mulde 3 springt das zuvor in dieser stark komprimierte 'Material auf die ca. 10-20fache Dicke (z.B. auf 5-10 mm) auf, wird in diesem Zustand mit hoher Geschwindigkeit im Bereich von 8-18 m/sec gekämmt, setzt dabei Staub frei und wechselt überdies zur Walze 7 über. Nachfol-gend wirkt die Auflockerungswalze 7 zudem noch mit einem mit noch feineren Zähnen oder Spitzen versehenen, als zweite Auflockerungswalze arbeitender Tambour '13, z.B. einer in Fig. 1 nicht voll dargestellten Karde, zusammen, welche in Richtung des Pfeiles C rotiert. Die zunehmenden Längen der Pfeile A, B, C sollen andeuten, dass die Umfangsgeschwindigket jedes nachfolgenden Zylinders grösser ist als die des vorhergehenden. Zwischen den Walzen 7 und 13 besteht ein zweiter Auflockerungsbereich 14, in dem die Fasern auf den Tambour 1'3 überwechseln. Auch hier wird Staub freigesetzt.A feed roller 1 (FIG. 1) is provided on its outer surface with flutes, corrugations, coarse teeth, tips 2 or the like and can be driven in the direction of arrow A. A feed trough 3 located above the feed roller 1, worked out of a trough body 4, and a trough plate 5 attached thereto extend parallel to one another in the axial direction. Between the feed roller 1 and the trough 3 to be conveyed to the fiber material '6, for example is in the form of a winding-lap sheet. A loosening roller 7 is provided with fine teeth or tips 8; it can be driven in the direction of the arrow B, ie opposite to the direction of rotation of the feed roller 1. In operation, the roller 7 has a much greater circumferential speed than the roller 1. The trough body 4 has a nose 9 that extends approximately to the location of the smallest distance E of the two rollers 1 and 7. Between this and the somewhat less protruding trough plate 5 There is an air extraction duct 11 with the suction opening 12 in the converging space between the cylindrical surface of the loosening roller 7 tapering to a loosening area 10 and the cylindrical surface of the loosening roller 1 also tapering into this area At this point, the loosening roller 7 lying directly opposite and the feed roller 1 begins, the fiber material presented is detected and loosened in the process. Immediately after release by the trough 3, the material which has been strongly compressed in this way jumps up to approximately 10-20 times the thickness (for example to 5-10 mm) and is in this state at high speed in the range of 8-18 m / sec combed, releases dust and also changes over to roller 7. Subsequently, the loosening roller 7 also interacts with a reel 13, which is provided with even finer teeth or tips and works as a second loosening roller, for example a card which is not fully shown in FIG. 1 and which rotates in the direction of arrow C. The increasing lengths of arrows A, B, C are intended to indicate that the circumferential speed of each subsequent cylinder is greater than that of the previous one. Between the rollers 7 and 13 there is a second loosening area 14 in which the fibers change over to the drum 1'3. Dust is also released here.

Eine Sauganordnung umfasst neben dem aus dem Muldenkörper 4 und der Muldenplatte 5 bestehenden Luftabzugskanal 11 ein sich daran anschliessendes, sich längs der Speisemulde 3 erstreckendes Luftabzugsgehäuse 15, an das ein den Unterdruck verteilender, etwa gleichlanger Saugstutzen 1'6 angeschlossen ist, der über eine flexible oder ausziehbare Leitung 17 mit einem Unterdruckerzeuger (nicht gezeigt) verbunden ist. Der Muldenkörper 4, das Luftabzugsgehäuse 15 und der Saugstutzen 16 sind zu einer Einheit zusammengebaut und von Tragarmen 18 (in Fig. 1 nur ein Arm sichtbar) getragen, welche um ein gestellfestes Lager 19 schwenkbar sind, d.h. die Einheit ist auf einer festen Bahn wegfahrbar. Im Betrieb ist die Einheit selbstverständlich gegenüber dem Maschinengestell gesichert (nicht gezeigt). Durch Schwenken des Tragarmes 18 im Gegenuhrzeigersinn (Pfeil D) kann der Muldenkörper 4 zusammen mit den Teilen 15, 1'6 von der Speisewalze 1 weggeklappt werden. Dies ermöglicht eine leichte Zugänglichkeit zu den Teilen 1, 3, 7 und 11, z.B. zum Zwecke der Inspektion und Reinigung derselben.In addition to the air extraction duct 11 consisting of the trough body 4 and the trough plate 5, a suction arrangement comprises an air extraction housing 15 adjoining it and extending along the feed trough 3, to which an approximately equal-length suction nozzle 1'6 which distributes the vacuum and is connected via a flexible connection or extendable line 17 is connected to a vacuum generator (not shown). The trough body 4, the air vent housing 15 and the suction nozzle 16 are assembled into one unit and carried by support arms 18 (only one arm visible in FIG. 1), which can be pivoted about a bearing 19 which is fixed to the frame, i.e. the unit can be moved away on a fixed track. In operation, the unit is of course secured against the machine frame (not shown). By swiveling the support arm 18 counterclockwise (arrow D), the trough body 4 together with the parts 15, 1'6 can be folded away from the feed roller 1. This enables easy access to parts 1, 3, 7 and 11, e.g. for the purpose of inspection and cleaning of the same.

Ausgehend vom zweiten Auflockerungsbereich 14 ist eine Abdeckung 20 vorhanden, welche sich in der Drehrichtung der Auflockerungswalze 7 eng anliegend über diese bis zur Platte '5 erstreckt, auf der sie dichtend aufliegt. Sie bildet zusammen mit der Walze 7 einen Verbindungskanal 21 zwischen der Einsaugöffnung 1'2 des Verbindungskanals 1'1 und dem zweiten Auflockerungsbereich '1'4.Starting from the second loosening area 14, there is a cover 20 which extends in the direction of rotation of the loosening roller 7 closely over it to the plate '5, on which it lies sealingly. Together with the roller 7, it forms a connecting channel 21 between the suction opening 1'2 of the connecting channel 1'1 and the second loosening area '1'4.

In geeigneten Abständen weist der Muldenkörper 4 Halteglieder 22 (Fig. 2) in der Form von Rippen auf. An diesen ist mittels Schrauben 23 die Muldenplatte 5 lösbar festgeschraubt. Der Luftabzugskanal 11 ist somit längs der Speisemulde 3 in eine Mehrzahl von einzelnen Luftdurchgängen 24 unterteilt, von denen jeder seitlich von zwei benachbarten Haltegliedern 22 begrenzt ist. Alle Durchgänge 24 führen quer zwischen dem Körper 4 und der Platte 5 hindurch zum Luftabzugsgehäuse 15.At suitable intervals, the trough body has 4 holding members 22 (FIG. 2) in the form of ribs. The trough plate 5 is detachably screwed to this by means of screws 23. The air exhaust duct 11 is thus divided along the feed trough 3 into a plurality of individual air passages 24, each of which is laterally delimited by two adjacent holding members 22. All passages 24 lead transversely between the body 4 and the plate 5 to the air vent housing 15.

Während des Betriebes wird das Fasermaterial 6 durch die Speisewalze 1 in der Mulde 3 gepresst, von dieser freigegeben, wodurch es infolge der innewohnenden Elastizität aufspringt. Im Auflockerungsbereich wird es dann durch Walze 7 gelockert und auseinandergezogen. Dabei wird ein wesentlicher Teil der im Fasermaterial 6 vorhandenen Verunreinigungen, insbesondere an diesem haftender feiner Staub (Mikrostaub), frei gesetzt. Nicht freiwerdender Schmutz wird so stark vom Fasermaterial 6 gelockert, dass er in einem der nächsten Auflokkerungsbereiche frei werden kann. Die mit der rasch rotierenden zylindrischen Oberfläche der Auflockerungswalze 7 im Kanal 21 mitbewegte Luft wird am Auflockerungsbereich 10 wegen des kleinen Abstandes der Oberflächen der beiden Walzen 1 und 7 und des dazwischen liegenden expandierten Fasermaterials daran gehindert, die engste Stelle E zwischen den beiden Walzen zu passieren. Die freigesetzten Verunreinigungen werden somit durch die von der Einsaugöffnung 12 herrührende Saugluftströmung erfasst und anschliessend mit der durch den Luftabzugskanal 11 und der aus den Teilen 15, 16 gebildeten Sauganordnung bewegten Luft wegtransportiert und gelangen nach Wegfiltrieren der Unreinigkeiten ins Freie.During operation, the fiber material 6 is pressed by the feed roller 1 in the trough 3, released by the trough 3, whereby it springs open due to the inherent elasticity. In the loosening area it is then loosened by roller 7 and pulled apart. A substantial part of the impurities present in the fiber material 6, in particular fine dust adhering to this (micro dust), is released. Dirt that is not released is loosened to such an extent by the fiber material 6 that it can be released in one of the next loosening areas. The air moving with the rapidly rotating cylindrical surface of the loosening roller 7 in the channel 21 is prevented from passing through the narrowest point E between the two rollers at the loosening area 10 because of the small distance between the surfaces of the two rollers 1 and 7 and the expanded fiber material lying between them . The released ver Impurities are thus detected by the suction air flow originating from the suction opening 12 and then transported away with the air moving through the air extraction duct 11 and the suction arrangement formed from the parts 15, 16 and, after the impurities have been filtered off, reach the outside.

Es ist vorteilhaft, wenn die von der Einsaugöffnung 12 ausgehende Saugwirkung von solcher Stärke ist, dass die zwischen der Auflockerungswalze 7 und der Abdeckung 20 dem Auflockerungsbereich 10 zugeführte Luft vollständig abgesaugt wird, da dann ein Aufbau eines Staudruckes vor dem Auflockerungsbereich 10 und damit ein axiales Abfliessen und seitliches Austreten von verschmutzter Luft in den Fabriksaal vermieden, bzw. auf eine spezielle Abdichtung verzichtet werden kann.It is advantageous if the suction effect emanating from the suction opening 12 is of such a strength that the air supplied between the loosening roller 7 and the cover 20 to the loosening area 10 is sucked off completely, since then a build-up of a dynamic pressure in front of the loosening area 10 and thus an axial one Drainage and lateral escape of polluted air into the factory hall avoided, or a special seal can be dispensed with.

Beim überwechseln von der Auflockerungswalze 7 zum Tambour 13 im Auflockerungsbereich 14 wird das Fasermaterial nochmals gelockert, wobei noch weitere allenfalls schon vorher gelockerte Unreinigkeiten befreit werden. Diese werden so mit dem im Verbindungskanal 21 fliessendem Luftstrom mitgenommen und nach Einsaugen in den Kanal 11 durch die Sauganordnung (Teile 15, 16) ebenfalls wegbefördert. Auf einen separaten Kanal ausserhalb der Abdeckung 20 kann somit verzichtet werden.When changing over from the loosening roller 7 to the reel 13 in the loosening area 14, the fiber material is loosened again, whereby any other previously loosened impurities are removed. These are carried along with the air flow flowing in the connecting duct 21 and, after being sucked into the duct 11, also conveyed away by the suction arrangement (parts 15, 16). A separate channel outside the cover 20 can thus be dispensed with.

Die erfindungsgemässe Vorrichtung ist insofern vorteilhaft, als die der Fasereinspeisung dienende Einzugsmulde mittels eines mit einem Kanal durchsetzten Muldenkörpers von oben her in den konvergierenden Raum zwischen Einzugswalze und Auflockerungswalze, z.B. der Vorreisserwalze einer Karde, vorstösst, und die Einsaugöffnung dieses Kanals dadurch nahe an die Staubentwicklungsstelle herangebracht wird. Gleichzeitig vermag diese Anordnung den seitlichen Austritt der von der Auflockerungswalze mitgeführten verschmutzten Luft entscheidend zu vermindern oder ganz zu unterdrücken.The device according to the invention is advantageous insofar as the feed trough serving for fiber feeding is fed into the converging space between the feed roller and the loosening roller, e.g. the licker-in roller of a carding machine, and the suction opening of this channel is thereby brought close to the dust development point. At the same time, this arrangement can decisively reduce or completely suppress the lateral exit of the polluted air carried by the loosening roller.

Claims (5)

1. Spinning preparatory machine, especially a card, with a feed roll together with a member carrying the associated feed shoe, an opening roll clothed with pointed elements and an opening region for the fibre material located between the feed roll and the opening roll, and a suction device located in the convergent space formed by the surface of the feed roll and the approaching surface of the opening roll characterised in that the suction entry opening (12) of the suction device (15, 16) extends into the convergent space up to the opening region (10), said opening being formed on the one side by nose (9) of the feed shoe member (4) extending along the feed shoe (3) and projecting forward up to opening region (10) and on the other side by a shoe-plate (5) extending at a spacing and projecting somewhat less further.
2. Machine according to patent claim 1 , wherein the opening roll (7) is followed immediately by a second opening roll (13) and there is a second opening region (14) between these rolls, characterised in that the second opening region (14) is connected with the suction device (1'5, 1'6) by a duct (21) formed between a cover (20) and the surface of the first said opening roll (7).
3. Machine according to patent claim 1, characterised in that the member (4) contains air throughways (24) arranged in a row along the length of the feed shoe (3), ending at the suction entry opening (12) and opening into a common air extraction housing (15).
4. Machine according to patent claim 1, characterised in that the member (4) together with the suction entry opening (1'5, '1'6) is removable as an unit on a fixed path from the feed roll (1).
5. Machine according to patent claims 1 and 3, characterised in that the shoe-plate (5) is releasably secured to holder elements (22) provided on the shoe-body (4), arranged at spacings from one another and abutting against the shoe-plate (5), whereby an air throughway (24) is formed between each pair of neighbouring holder elements (22).
EP80103176A 1979-07-04 1980-06-07 Preparation machine for spinning Expired EP0022472B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80103176T ATE3727T1 (en) 1979-07-04 1980-06-07 SPINNING PREPARATION MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH640779 1979-07-04
CH6407/79 1979-07-04

Publications (2)

Publication Number Publication Date
EP0022472A1 EP0022472A1 (en) 1981-01-21
EP0022472B1 true EP0022472B1 (en) 1983-06-08

Family

ID=4309094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103176A Expired EP0022472B1 (en) 1979-07-04 1980-06-07 Preparation machine for spinning

Country Status (6)

Country Link
US (1) US4346500A (en)
EP (1) EP0022472B1 (en)
JP (1) JPS569429A (en)
AT (1) ATE3727T1 (en)
DE (1) DE3063671D1 (en)
IN (1) IN152630B (en)

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Publication number Priority date Publication date Assignee Title
DE3127418A1 (en) * 1981-07-11 1983-02-03 Trützschler GmbH & Co KG, 4050 Mönchengladbach DEVICE FOR SEPARATING IMPURITIES, LIKE DUST, TRASH OR THE LIKE. FROM FIBER GOODS
DE3343936A1 (en) * 1983-02-26 1984-08-30 Trützschler GmbH & Co KG, 4050 Mönchengladbach DEVICE ON A CARD OR COLLECTIBLE FOR COLLECTING WASTE MATERIAL
DE3346335A1 (en) * 1983-12-22 1985-07-18 Hergeth Hollingsworth GmbH, 4408 Dülmen METHOD AND DEVICE FOR PRODUCING A UNIFORM FIBER MATING IN THE FABRICATION ZONE BETWEEN TAMBOUR AND FIBER TAKEOVER ORGAN
DE3429024C2 (en) * 1984-08-07 1986-08-21 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Method and device for separating dust from fiber material
DE3702643A1 (en) * 1986-02-10 1987-08-13 Toshiba Kawasaki Kk INK NIBLE PEN AND WRITING HEAD AND WRITING HEAD CASSETTE DAFUER
DE3805829A1 (en) * 1988-02-25 1989-09-07 Truetzschler & Co FEEDING DEVICE FOR A FIBER MATERIAL DOCUMENT TO A RIPPER OF A CARD OR A SAW TOOTH ROLLER OF AN OPENER
JP2614265B2 (en) * 1988-04-12 1997-05-28 株式会社リコー Liquid jet recording head
EP0352726B1 (en) * 1988-07-26 1994-04-27 Canon Kabushiki Kaisha Liquid-jet recording head and recording apparatus employing the same
DE3827520A1 (en) * 1988-08-12 1990-02-15 Rieter Ag Maschf SUCTIONED SIMULTANEOUS FEEDER FOR A CARD
JP2683126B2 (en) * 1988-12-28 1997-11-26 キヤノン株式会社 Ink jet recording device
CN1022337C (en) * 1989-03-23 1993-10-06 里特机械公司 Device for elimination of dirt from fibre fleece
DE4200394B4 (en) * 1991-03-19 2004-12-02 Trützschler GmbH & Co KG Device for cleaning and opening flake fiber material z. B. cotton, synthetic fiber u. like.
JP3339724B2 (en) 1992-09-29 2002-10-28 株式会社リコー Ink jet recording method and apparatus
JP3394832B2 (en) * 1995-03-15 2003-04-07 株式会社東芝 Ink jet recording device
DE19708261B4 (en) * 1997-02-28 2010-08-12 TRüTZSCHLER GMBH & CO. KG Device on a card with a feeding roller and at least one lickerin
JP2000211124A (en) 1998-07-21 2000-08-02 Ricoh Co Ltd Liquid jet recording apparatus
JP2000117967A (en) 1998-10-16 2000-04-25 Fuji Photo Film Co Ltd Ink recording method
JP3753289B2 (en) 1998-10-16 2006-03-08 富士写真フイルム株式会社 Inkjet recording method
JP2000127410A (en) 1998-10-27 2000-05-09 Hitachi Ltd Printer
EP1926357A3 (en) 2006-11-21 2009-09-30 Ricoh Company, Ltd. Functional device fabrication apparatus and functional device fabricated with the same
DE102010022479A1 (en) * 2010-06-02 2011-12-08 TRüTZSCHLER GMBH & CO. KG Device on a card or card with a garnished drum and a neighboring garnished lickerin

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US3034179A (en) * 1958-10-16 1962-05-15 Jr Walter M Hall Carding machine licker-in roll cowling
US3315320A (en) * 1965-08-23 1967-04-25 R B Jenkins & Co Inc Pneumatic cleaning means for carding machines
GB1230331A (en) * 1969-03-21 1971-04-28
US3737952A (en) * 1969-04-30 1973-06-12 Gunter & Cooke Inc Carding machine fiber and air control method and means
GB1309925A (en) * 1969-05-20 1973-03-14 Toyoda Automatic Loom Works Takerin-part of the conventional flat card
US4064598A (en) * 1969-05-20 1977-12-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Taker-in-part of the conventional flat card
JPS48100916U (en) * 1972-02-23 1973-11-28
JPS5126334A (en) * 1974-08-27 1976-03-04 Toyoda Automatic Loom Works Somenkino teekainjobuniokeru senikaishusochi
BR7706320A (en) * 1976-09-27 1978-05-09 Gunter & Cooke Inc PROCESS FOR CARDING COTTON AND SYNTHETIC FIBERS
US4135275A (en) * 1976-09-27 1979-01-23 Gunter & Cooke, Inc. High speed card

Also Published As

Publication number Publication date
EP0022472A1 (en) 1981-01-21
JPS569429A (en) 1981-01-30
IN152630B (en) 1984-02-25
JPH0227445B2 (en) 1990-06-18
ATE3727T1 (en) 1983-06-15
US4346500A (en) 1982-08-31
DE3063671D1 (en) 1983-07-14

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