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EP0522255B1 - Method of severing the rovings on roving bobbins produced on roving frames - Google Patents

Method of severing the rovings on roving bobbins produced on roving frames Download PDF

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Publication number
EP0522255B1
EP0522255B1 EP92107835A EP92107835A EP0522255B1 EP 0522255 B1 EP0522255 B1 EP 0522255B1 EP 92107835 A EP92107835 A EP 92107835A EP 92107835 A EP92107835 A EP 92107835A EP 0522255 B1 EP0522255 B1 EP 0522255B1
Authority
EP
European Patent Office
Prior art keywords
roving
bobbins
condenser
rovings
bobbin
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
EP92107835A
Other languages
German (de)
French (fr)
Other versions
EP0522255A1 (en
Inventor
Hans-Peter Dipl.-Ing. Weeger (Fh)
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Zinser Textilmaschinen 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 Zinser Textilmaschinen GmbH filed Critical Zinser Textilmaschinen GmbH
Publication of EP0522255A1 publication Critical patent/EP0522255A1/en
Application granted granted Critical
Publication of EP0522255B1 publication Critical patent/EP0522255B1/en
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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H7/00Spinning or twisting arrangements
    • D01H7/02Spinning or twisting arrangements for imparting permanent twist
    • D01H7/24Flyer or like arrangements
    • D01H7/50Interrelated flyer and bobbin drive mechanisms, e.g. winding-on motions for cotton-roving frames 
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H9/00Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/16Yarn-severing arrangements, e.g. for cutting transfer tails; Separating of roving in flyer

Definitions

  • the invention is based on an already known method (EP 0 428 826 A1) in which the roving machine is stopped in one position or runs out in a position in which the press fingers are just below the upper reversal point of the last layer of turns on the coil, i.e.
  • the coil bank is lowered into an area in which the press fingers are above the cylindrical regions of the bobbins, then the bobbins are rotated forward by at least half a turn and, depending on the nature of the material to be processed, the fuses between the drafting system and the pressing fingers are loosened and the non-rotating wings and bobbins are moved axially relative to one another for the final separation process that the pressing fingers are guided downwards, the fuses being separated at the level of the cylindrical regions of the coils.
  • the bobbin bank is lowered into the doffing position after the fuses have been separated, the roving bobbins being rotated forward by an angle of rotation of at least 5 ° during the lowering.
  • the fusible material is “heaped” in the next method step. This means that the drafting systems 13 are switched to delivery (arrow 23) for a short time, as indicated in FIG. 4. The other machine components stand still at this moment.
  • the pre-spinning machine which enables the use of the above-described method, either has separate drives for the drafting systems, the spindles and the wings, or it is equipped with coupling devices which enable the individual machine components to be selectively switched on.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Trennen der Lunten von auf Vorspinnmaschinen gefertigten Vorgarnspulen, wobei die freien Luntenenden wenigstens teilweise auf den Windungskegeln der Vorgarnspulen aufliegen.The invention relates to a method for separating the rovings from roving bobbins manufactured on roving machines, the free roving ends resting at least partially on the cones of the roving bobbins.

Es ist bekannt, die auf Vorspinnmaschinen gefertigten Vorgarnspulen durch automatische Doffeinrichtungen von den Spindeln abzuziehen und an eine oberhalb der Spinnmaschine angeordnete Spulentransporteinrichtung zu übergeben (DE 36 30 214 A1).It is known to pull the roving bobbins produced on roving machines by automatic doffing devices from the spindles and to transfer them to a bobbin transport device arranged above the spinning machine (DE 36 30 214 A1).

Beim Abziehen dieser Vorgarnspulen sollen die Lunten vorzugsweise so getrennt werden, daß einerseits an der Preßfingerplatte ein kurzes, freihängendes Vorgarnstück verbleibt und damit ein nachfolgendes Ansetzen an die Leerhülsen gewährleistet ist, andererseits sollte das andere Vorgarnende auf der Spule möglichst so abgelegt werden, daß es beim nachfolgenden, in der Regel hängenden Weitertransport der Spulen nicht abfällt.When removing these roving bobbins, the rovings should preferably be separated so that, on the one hand, a short, freely hanging roving piece remains on the press finger plate and a subsequent attachment to the empty tubes is guaranteed, on the other hand, the other roving end should be placed on the bobbin as far as possible so that it subsequent, usually hanging further transport of the coils does not fall off.

Langstapeliges Material, wie beispielsweise Wolle, synthetische Fasern mit Wolle in entsprechender Stapellänge, setzen hierbei diesem gewünschten Trennen erheblichen Widerstand entgegen, da das Vorgarn durch Anlage am Preßfinger und an der Spule unter Druck steht und eine hohe Haftreibung der Fasern untereinander bewirkt wird.Long-staple material, such as wool, synthetic fibers with wool in the appropriate pile length, provide considerable resistance to this desired separation, since the roving is under pressure due to contact with the press finger and the spool and a high static friction of the fibers is brought about.

Um diesen Trennvorgang zu verbessern und außerdem zu gewährleisten, daß die freien Luntenenden wenigstens teilweise auf dem Windungskegel der gedofften Vorgarnspulen aufliegen, geht die Erfindung von einem bereits bekannten Verfahren aus (EP 0 428 826 Al), bei dem die Vorspinnmaschine in einer Stellung stillgesetzt wird oder in einer Stellung ausläuft, in welcher die Preßfinger dicht unterhalb des oberen Umkehrpunktes der letzten Windungsschicht an der Spule stehen, also an den zylindrischen Bereichen der Spulen anliegen, danach die Spulenbank bis in einen Bereich abgesenkt wird, in dem die Preßfinger oberhalb der zylindrischen Bereiche der Spulen stehen, anschließend die Spulen um wenigstens eine halbe Drehung vorwärtsgedreht werden und entsprechend der Beschaffenheit des zu bearbeitenden Materials die Lunten zwischen dem Streckwerk und den Preßfingern gelockert sowie zum abschließenden Trennvorgang die nichtdrehenden Flügel und Spulen axial relativ zueinander so bewegt werden, daß die Preßfinger nach unten geführt werden, wobei die Lunten in Höhe der zylindrischen Bereiche der Spulen getrennt werden.In order to improve this separation process and also to ensure that the free sliver ends lie at least partially on the winding cone of the doffed roving bobbins, the invention is based on an already known method (EP 0 428 826 A1) in which the roving machine is stopped in one position or runs out in a position in which the press fingers are just below the upper reversal point of the last layer of turns on the coil, i.e. are in contact with the cylindrical regions of the coils, then the coil bank is lowered into an area in which the press fingers are above the cylindrical regions of the bobbins, then the bobbins are rotated forward by at least half a turn and, depending on the nature of the material to be processed, the fuses between the drafting system and the pressing fingers are loosened and the non-rotating wings and bobbins are moved axially relative to one another for the final separation process that the pressing fingers are guided downwards, the fuses being separated at the level of the cylindrical regions of the coils.

Dieses bekannte Verfahren führte bereits zu erheblichen Verbesserungen beim Trennen der Lunten von Vorgarnspulen, weist aber den gravierenden Nachteil auf, daß es nur zu einem ganz bestimmten Zeitpunkt der Spulenreise, nämlich dann wenn die Preßfinger dicht unterhalb des oberen Umkehrpunktes anliegen, durchführbar ist.This known method has already led to considerable improvements in the separation of the sliver from roving bobbins, but has the serious disadvantage that it can only be carried out at a very specific point in time during the bobbin travel, namely when the pressing fingers lie close below the upper reversal point.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, das Verfahren zum Trennen der Lunten von auf Vorspinnmaschinen hergestellten Vorgarnspulen dahingehend zu verbessern, daß zu jedem Zeitpunkt der Spulenreise der Doffvorgang eingeleitet werden kann, ohne daß Nachteile beim Transport der gedofften Vorgarnspulen oder Nachteile beim Neuansetzen der Lunten an Leerhülsen auftreten.Starting from the aforementioned prior art, the invention has for its object to improve the method for separating the sliver of roving bobbins produced on roving machines in such a way that the doffing process can be initiated at any time during the bobbin trip, without disadvantages in the transport of the doffing roving bobbins or disadvantages occur when re-attaching the fuses to empty tubes.

Dieses Verfahren kann erfindungsgemäß dadurch noch wesentlich verbessert werden, daß die Spulen beim dem Absenken, bei dem die Preßfinger dicht unter den oberen Umkehrpunkt der ersten Windungsschicht der Spulen geführt werden, um einen Drehwinkel zurückgedreht werden, der ausreicht, die bei diesem Absenken benötigte Vorgarnlänge abzuwickeln. Durch dieses Rückdrehen der Vorgarnspulen während des Absenkvorganges der Spulenbank wird fertige Vorgarnlunte von der Vorgarnspule abgewickelt und bewirkt ein gezieltes Anpassen an den größer werdenden Abstand zwischen den letzten Windungslagen und den Preßfingern. Auf diese Weise wird verhindert, daß beim Absenken der Spulenbank unkontrolliert Windungslagen abgezogen werden oder die Lunten undefiniert abreißen.This method can be substantially improved according to the invention in that the bobbins are rotated back during the lowering, in which the pressing fingers are guided close to the upper reversal point of the first winding layer of the bobbins, by an angle of rotation which is sufficient to unwind the roving length required for this lowering . By turning the roving bobbins back during the lowering process of the bobbin bank, the finished roving reel is unwound from the roving bobbin and brings about a targeted adaptation to the increasing distance between the last winding layers and the pressing fingers. In this way, it is prevented that winding layers are pulled off in an uncontrolled manner or the fuses are torn off in an undefined manner when the coil bank is lowered.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Spulenbank nach dem Trennen der Lunten in die Doffposition abgesenkt wird, wobei während des Absenkens die Vorgarnspulen um einen Drehwinkel von wenigstens 5° vorwärts gedreht werden.In a further embodiment of the invention, it is provided that the bobbin bank is lowered into the doffing position after the fuses have been separated, the roving bobbins being rotated forward by an angle of rotation of at least 5 ° during the lowering.

Durch dieses Weiterdrehen der Vorgarnspulen während des Absenkens wird verhindert, daß die Preßfinger in Kontakt mit dem auf dem Spulenmantel liegenden, abgewickelten Luntenstrang kommen und diesen beschädigen.This further rotation of the roving bobbins during the lowering prevents the pressing fingers from coming into contact with the wound sliver strand lying on the bobbin shell and damaging it.

Weitere Einzelheiten der Erfindung sind nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert.Further details of the invention are explained below with reference to an embodiment shown in the drawing.

Es zeigen:

Fig. 1 - 6
in schematischer Seitenansicht die einzelnen Verfahrensschritte zum Trennen des Vorgarns,
Fig. 7
eine schematische Seitenansicht einer Vorgarnspule, deren Lunten nach dem erfindungsgemäßen Verfahren getrennt wurde.
Show it:
1-6
a schematic side view of the individual process steps for separating the roving,
Fig. 7
is a schematic side view of a roving bobbin, the sliver was separated by the inventive method.

Die in den Fig. 1-6 insgesamt mit 1 bezeichnete Vorspinnmaschine besteht, wie bekannt, aus einem Maschinenrahmen 2, in dessen oberen Bereich eine nach vorne ragende Flügelbank 3 angeformt ist. In der Flügelbank 3 sind gegeneinander versetzt zwei Reihen Flügel 4 drehbar gelagert, die über einen gemeinsamen (nicht dargestellten) Antrieb beaufschlagt werden. Die Flügel 4 tragen endseitig Preßfinger 5, die an den Vorgarnspulen 6 anliegen. Die Vorgarnspulen 6 stecken auf Spindeln 7, welche ebenfalls drehbar gelagert und gemeinsam angetrieben in einer Spulenbank 8 angeordnet sind.The roving machine, designated overall by 1 in FIGS. 1-6, consists, as is known, of a machine frame 2, in the upper region of which a wing bench 3 projecting forward is formed. In the wing bench 3, two rows of wings 4 are rotatably offset relative to one another and are acted upon by a common drive (not shown). The ends of the wings 4 have pressing fingers 5 which rest against the roving bobbins 6. The roving bobbins 6 are inserted on spindles 7, which are also rotatably mounted and are driven together in a spool bank 8.

Die Spulenbank 8 ist auf einer Konsole 9 befestigt und kann mittels eines Schubkolbengetriebes 10 um eine Achse 11 nach vorne gekippt werden. Die Konsole 9 ist außerdem vertikal verschiebbar an Führungen 12 gelagert.The coil bank 8 is fastened on a bracket 9 and can be tilted forward about an axis 11 by means of a thrust piston mechanism 10. The console 9 is also vertically displaceably mounted on guides 12.

Im Kopfbereich der Vorspinnmaschine 1 sind Streckwerke 13 angeordnet. In den Streckwerken 13 wird das aus (nicht dargestellten) Spinnkannen abgezogene Faserband 14 verstreckt und anschließend mittels der Spinnvorrichtungen 4, 5, 7 zu Lunten 15 verdrallt.In the head region of the roving machine 1, drafting devices 13 are arranged. In the drafting devices 13, the fiber sliver 14 drawn from (not shown) spinning cans is stretched and then twisted to fuses 15 by means of the spinning devices 4, 5, 7.

In Fig. 1 ist der erste Schritt des erfindungsgemäßen Verfahrens dargestellt:
Die Vorspinnmaschine 1 wird nach Fertigstellung der Vorgarnspulen 6 stillgesetzt, das bedeutet, die Materiallieferung durch die Streckwerke 13 wird eingestellt, die Spindeln 7 mit den Vorgarnspulen 6 sowie die Flügel 4 gestoppt. Die endseitig an den Flügeln 4 angeordneten Preßfinger 5 befinden sich dabei auf den zylindrischen Bereichen 18 der Vorgarnspule 6, z.B. im unteren Drittel.
1 shows the first step of the method according to the invention:
The roving machine 1 is stopped after completion of the roving bobbins 6, which means that the material delivery through the drafting units 13 is discontinued, the spindles 7 with the roving bobbins 6 and the wings 4 are stopped. The pressing fingers 5 arranged on the ends of the wings 4 are located on the cylindrical regions 18 of the roving bobbin 6, for example in the lower third.

Im nächsten Verfahrensschritt, dargestellt in Fig. 2, wird die Konsole 9 und damit die Spulenbank 8 abgesenkt (Richtung Pfeil 22). Während dieser Absenkbewegung 22 werden die Vorgarnspulen 6 rückwärtsgedreht (Pfeil 26). Der Drehwinkel der Vorgarnspulen 6 ist dabei auf die Vorgarnlänge abgestimmt, die von den Vorgarnspulen 6 abgewickelt werden muß, um den bei der Absenkbewegung 22 von der Spulenbank 8 zurückgelegten Weg auszugleichen. Die Streckwerke 13 und die Flügel 4 stehen während dieser Zeit still. Wie aus Fig. 2 ersichtlich, befinden sich die Preßfinger 5 nach dem Absenken der Spulenbank 8 oberhalb der zylindrischen Bereiche 18 der Vorgarnspulen 6.In the next process step, shown in FIG. 2, the console 9 and thus the coil bank 8 are lowered (direction arrow 22). During this lowering movement 22, the roving bobbins 6 are turned backwards (arrow 26). The angle of rotation of the roving bobbins 6 is matched to the roving bobbin length that has to be handled by the roving bobbins 6 in order to compensate for the path covered by the bobbin bench 8 during the lowering movement 22. The drafting systems 13 and the wings 4 stand still during this time. As can be seen from FIG. 2, after the bobbin 8 has been lowered, the pressing fingers 5 are located above the cylindrical regions 18 of the roving bobbins 6.

Im Anschluß daran (Fig. 3) werden die Spindeln 7 auf normale Drehrichtung, d.h. Vorwärtsdrehung (Pfeil 27) geschaltet, so daß auf den Windungskegel 16, vorzugsweise um die Hülse 17 herum, einige Windungslagen aufgebracht werden. Es kann in vielen Fällen auch genügen, wenn lediglich eine halbe Vorwärtsdrehung der Vorgarnspulen 6 ausgeführt wird.Following this (Fig. 3) the spindles 7 are in the normal direction of rotation, i.e. Forward rotation (arrow 27) switched so that some turns are applied to the winding cone 16, preferably around the sleeve 17. In many cases, it may also suffice if only a half forward rotation of the roving bobbins 6 is carried out.

Um eine in etwa definierte Trennstelle an den Lunten 15 zu erhalten, wird im nächsten Verfahrensschritt Luntenmaterial "gehäufelt". Das heißt, die Streckwerke 13 werden kurzzeitig, wie in Fig. 4 angedeutet, auf Lieferung (Pfeil 23) geschaltet. Die übrigen Maschinenkomponenten stehen in diesem Moment still.In order to obtain a roughly defined separation point on the fines 15, the fusible material is “heaped” in the next method step. This means that the drafting systems 13 are switched to delivery (arrow 23) for a short time, as indicated in FIG. 4. The other machine components stand still at this moment.

(Fig.5) Durch Anheben der Spulenbank 8 bzw. der Konsole 9 (Pfeil 24) wird die gehäufelte Lunte 15 zunächst gestrafft und schließlich etwa auf Höhe der zylindrischen Bereiche 18 der Vorgarnspulen 6 getrennt.(Fig. 5) By lifting the bobbin 8 or the console 9 (arrow 24), the heaped fuse 15 is first tightened and finally separated approximately at the level of the cylindrical regions 18 of the roving bobbins 6.

Um während des Anhebens der Spindelbank Komplikationen mit den von den letzten Windungsschichten 20 abgewickelten Luntensträngen 19 zu vermeiden, werden vorteilhafterweise in diesem Moment die Vorgarnspulen 6 kurz vorwärtsgedreht (Pfeil 27). Der Drehwinkel sollte dabei wenigstens 5o betragen.In order to avoid complications with the sliver strands 19 unwound from the last winding layers 20 during the lifting of the spindle bank, the roving bobbins 6 are advantageously briefly rotated at this moment (arrow 27). The angle of rotation should be at least 5 o .

Anschließend wird die Spulenbank 8 in Doffposition gebracht, das heißt, die Spulenbank 8 wird wieder abgesenkt (Pfeil 22 in der Fig. 5) und mittels des Schubkolbengetriebes 10 in Richtung des Pfeiles 25 um die Achse 11 nach vorne gekippt (Fig.6).Subsequently, the coil bank 8 is brought into the doff position, that is, the coil bank 8 is lowered again (arrow 22 in FIG. 5) and tilted forward about the axis 11 in the direction of arrow 25 by means of the thrust piston mechanism 10 (FIG. 6).

Fig. 7 zeigt im vergrößerten Maßstab eine Vorgarnspule 6, deren Lunte 15 nach dem vorbeschriebenen Verfahren getrennt wurde.Fig. 7 shows on a larger scale a roving bobbin 6, the fuse 15 was separated according to the method described above.

Wie ersichtlich, ist der Luntenstrang 19, von der äußeren Windungsschicht 20 ausgehend, in dem Bereich des Windungskegels 16 gezogen und schlaufenartig um die Hülse 17 herumgelegt. Das freie Ende 21 der Lunte 15 endet in Höhe des zylindrischen Bereiches 18 der Vorgarnspule 6.As can be seen, the sliver strand 19, starting from the outer winding layer 20, is drawn in the region of the winding cone 16 and is looped around the sleeve 17. The free end 21 of the fuse 15 ends at the level of the cylindrical region 18 of the roving bobbin 6.

Es soll hier ausdrücklich betont werden, daß mit schlaufenartig um die Hülse 17 herumgelegen nicht gemeint ist, daß unbedingt, wie dargestellt, mehrere Schlaufen angelegt sein müssen. Bei verschiedenen Materialien kann bereits eine einzige Schlaufe oder nur ein Teil einer Schlaufe ausreichend sein.It should be expressly emphasized here that loop-like around the sleeve 17 does not mean that, as shown, several loops must necessarily be created. With different materials, a single loop or only part of a loop may be sufficient.

Die Vorspinnmaschine, die die Anwendung des vorbeschriebenen Verfahrens ermöglicht, weist entweder getrennte Antriebe für die Streckwerke, die Spindeln und die Flügeln auf oder sie ist mit Kupplungseinrichtungen ausgestattet, die ein wahlweises Zuschalten der einzelnen Maschinenkomponenten ermöglichen.The pre-spinning machine, which enables the use of the above-described method, either has separate drives for the drafting systems, the spindles and the wings, or it is equipped with coupling devices which enable the individual machine components to be selectively switched on.

BezugszahlenlisteList of reference numbers

  • 1 Vorspinnmaschine1 roving machine
  • 2 Maschinenrahmen2 machine frames
  • 3 Flügelbank3 wing bench
  • 4 Flügel4 wings
  • 5 Preßfinger5 press fingers
  • 6 Vorgarnspule6 roving spool
  • 7 Spindel7 spindle
  • 8 Spulenbank8 spool bank
  • 9 Konsole9 console
  • 10 Schubkolbengetriebe10 thrust piston gears
  • 11 Achse11 axis
  • 12 Führung12 leadership
  • 13 Streckwerk13 drafting system
  • 14 Faserband14 sliver
  • 15 Lunte15 fuse
  • 16 Windungskegel16 winding cones
  • 17 Hülse17 sleeve
  • 18 zylindrischer Bereich18 cylindrical area
  • 19 Luntenstrang19 sliver strand
  • 20 Windungsschicht20 winding layer
  • 21 freies Ende der Lunte21 free end of the fuse
  • 22 Absenkbewegung (Spulenbank)22 lowering movement (spool bank)
  • 23 Streckwerkslieferung23 Delivery of drafting systems
  • 24 Anhebbewegung (Spulenbank)24 lifting movement (spool bank)
  • 25 Kippbewegung (Spulenbank)25 tilting movement (spool bank)
  • 26 Rückwärtsdrehen (Vorgarnspulen)26 reverse rotation (roving bobbins)
  • 27 Vorwärtsdrehen (Vorgarnspulen)27 forward turning (roving bobbins)

Claims (2)

  1. Method for separating the rovings from condenser bobbins (6) produced on condenser frames (1), which method leads to condenser bobbins in which the free roving ends rest at least partially on the turn cones (16), and in which method the condenser frame (1) is stopped in a position or runs down in a position in which the press fingers (5) bear on the cylindrical regions (18) of the condenser bobbins (6); the bobbin rail (8) is thereafter lowered into a region in which the press fingers (5) are located above the cylindrical regions (18) of the condenser bobbins, the condenser bobbins (6) simultaneously being rotated backwards through an angle of rotation which is sufficient to unwind the condenser length required during the lowering movement (22) of the bobbin rail (8); the condenser bobbins (6) are subsequently rotated forwards through at least half a revolution; a predetermined quantity of roving material is accumulated as a result of the cut-in of the draw-frames (13), and the bobbin rail (8) is subsequently raised and the rovings (15) are at the same time separated in the amount of the cylindrical regions (18) of the condenser bobbins (6).
  2. Method according to Claim 1, characterized in that, after the separation of the rovings (15), the bobbin rail (8) is lowered into the doffing position, and at the same time the condenser bobbins (6) are rotated forwards through an angle of rotation of at least 5°.
EP92107835A 1991-07-10 1992-05-09 Method of severing the rovings on roving bobbins produced on roving frames Expired - Lifetime EP0522255B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122810A DE4122810A1 (en) 1991-07-10 1991-07-10 METHOD FOR SEPARATING THE RUNS OF PRE-YARN BOBS MADE ON RASPING MACHINES
DE4122810 1991-07-10

Publications (2)

Publication Number Publication Date
EP0522255A1 EP0522255A1 (en) 1993-01-13
EP0522255B1 true EP0522255B1 (en) 1996-04-17

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Application Number Title Priority Date Filing Date
EP92107835A Expired - Lifetime EP0522255B1 (en) 1991-07-10 1992-05-09 Method of severing the rovings on roving bobbins produced on roving frames

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US (1) US5331799A (en)
EP (1) EP0522255B1 (en)
JP (1) JPH05195345A (en)
DE (2) DE4122810A1 (en)

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DE4231887C2 (en) * 1992-09-21 1997-06-19 Grosenhainer Textilmaschbau Process for separating roving when removing bobbins on roving machines
DE4421143B4 (en) * 1993-07-22 2008-04-24 Maschinenfabrik Rieter Ag Method and device for handling the yarn in a ring spinning machine
US5524428A (en) * 1994-07-05 1996-06-11 Fratelli Marzoli & C. S.P.A. Method and apparatus for separating the roving wound on packages from the flyers of a roving frame or the like, and for securing the roving end to the packages before doffing
FR2722513B1 (en) * 1994-07-13 1996-08-30 Schlumberger Et Cie Sa N PROCESS FOR BREAKING THE WICK FOR AUTOMATIC LIFTING OF THE COILS ON SPINDLE BENCHES AND PRESSING FINGER IMPLEMENTED BY THIS PROCESS
DE19517757A1 (en) * 1995-05-15 1996-11-21 Zinser Textilmaschinen Gmbh Ring=spinning machine
DE59701669D1 (en) * 1997-12-22 2000-06-15 Zinser Textilmaschinen Gmbh Method and device for depositing and separating a roving sliver in a roving machine
DE10001351A1 (en) * 2000-01-14 2001-07-19 Zinser Textilmaschinen Gmbh Automatic severing of the roving when the wound bobbin is doffed from a roving frame uses a press finger plank with a structured movement to act on the weak point of set roving reserves to give a constant remaining length
CA2891276C (en) 2012-11-12 2021-03-23 Richard Mike Temblador Wire and cable package
CH709606A1 (en) * 2014-05-08 2015-11-13 Rieter Ag Maschf Method for operating a textile machine, which serves for the production of roving, as well as textile machine.

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Also Published As

Publication number Publication date
JPH05195345A (en) 1993-08-03
EP0522255A1 (en) 1993-01-13
DE4122810A1 (en) 1993-01-14
DE59205999D1 (en) 1996-05-23
US5331799A (en) 1994-07-26

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